Installation method and precautions of high pressure roller mill frame

The high-pressure roller mill is used as a material grinding equipment with excellent performance in mining enterprises. It uses the principle of static pressure pulverization. However, because the equipment is in operation, the force of each part is large, resulting in large vibrations. In order to ensure the high-pressure roller mill The machine is stable and firm, and the frame and base need to be installed strictly in accordance with the specifications. Below, the editor of Zhongyuan has compiled the installation methods and precautions of the high-pressure roller mill frame for your reference.

Mounting method of high pressure roller mill frame

High-Pressure Grinding Rolls

1. Installation of the base of the high-pressure roller mill

(1) Before installing the base of the high-pressure roller mill, use kerosene to clean the anti-rust oil, and then place it on the base plate of the horn. The contact area between the base and the horn in several shifts is required to reach 80 of the total area. %;

(2) Insert the base and shim base plate into the anchor bolts, use a level to roughly adjust the level of the base, then clean the contact surface of the base and the frame with kerosene, and install the frame on the base after completion;

(3) Adjust the shim and use a feeler gauge to check the gap between the base and the frame. After the adjustment is completed, use a torx wrench and a hydraulic electric wrench to tighten the bolts four times, and apply thread tightening glue before tightening. Effectively prevent bolt loosening caused by mechanical vibration.

2. Installation of the frame of the high-pressure roller mill

(1) Use kerosene to clean the roller slide of the rack, and then check and wipe the surface of the slide;

(2) Use a level ruler to put on the slide rail, adjust the shim to make the slide initially level, and then use a frame level meter and a ruler to measure the slide, and adjust the shim for fine leveling;

(3) After the fine leveling is completed, use electric welding to fix the side of the shim to make it firm and stable;

(4) Tighten the bolts four times with a Torx wrench and a hydraulic electric wrench, and apply thread tightening glue before tightening, which can effectively prevent the bolts from loosening caused by mechanical vibration.

Precautions for the installation of the high-pressure roller mill frame

High-Pressure Grinding Rolls

1. The contact surface between the base and the shim base plate should be free of burrs;

2. The gap between the contact surface of the base and the shim base plate should be less than 0.02mm, and check with a 0.02mm feeler gauge;

3. When using a level to roughly level the base, the level deviation should be less than 2mm;

4. The roller slide of the frame should be free of burrs and damage;

5. After the frame is leveled, the longitudinal and horizontal horizontality error shall not be greater than 0.02mm;

6. After the installation of the base and the rack, check the deviation in time and record the result of the check.

The above is the whole content of the installation method and precautions for the frame of the high pressure roller mill. I hope to help you. The installation of the frame and the base is not firm, which is one of the main reasons for the vibration of the high-pressure roller mill. On the one hand, noise affects the work of the on-site operators, and on the other hand, it may cause the transmission system of the high-pressure roller mill to appear during the vibration process. Failure and premature wear of parts, so like other components, it is necessary to pay attention to their installation conditions.

What are the maintenance methods for the roller skin of the briquetting machine?

In modern industrial production, in order to save raw materials, various equipment in various industries emerge in an endless stream. As an important equipment for processing residual materials, pressing and reusing, it is inevitable that various wear and aging will occur during use. Important working components in the briquetting machine the roller skin is often replaced after being worn out.

The roller skin is a cylindrical member with balls and sockets dug on the surface of the roller core of the briquetting machine. Normally, the pressing of materials depends on hydraulic drive rollers, which are formed by the balls of the roller skin, as a briquetting mechanism that is very easy to wear. Frequent replacement is unacceptable to the operators, but the worn out briquetting machine roll skin cannot meet the production requirements, and it is impossible to do it without replacement. Therefore, it is very important to maintain the roll skin during use. The specific briquetting machine What is the maintenance method of the roller skin?

1. The roller skin of the briquetting machine should be installed correctly

There are four ways to install the roller skin of the briquetting machine. Different briquetting machines use different methods, but the installation standards are the same. What’s more about production, the shape of the ball socket on the roller skin must be aligned, otherwise the briquetting machine will not produce the ball, loose balls, and the ball is not real; at the same time, because the roller skin and the ball socket are not aligned, the ball will still be the ball. The edges of the sockets wear out, and the rollers must be replaced after a long time.

2. Protect the briquetting machine before working

The commonly used steel for casting briquetting machine roll skin is 65 manganese alloy, and the commonly used steel for forging briquetting machine roll skin is 92 chromium molybdenum. Our company uses higher-level forgings—bearing steel. Casting roller skins are relatively non-wearing, but the advantage lies in their low cost. Some operators are not bad for money, and it’s not a big deal to replace the roller skins frequently, but for the operators who use forged roller skins, the more durable the roller skin is, the better. It is better not to be replaced, but the maintenance method of the roller skin of the briquetting machine is not allowed.

After the roller skin is installed correctly, if you want to reduce the degree of wear of the roller skin, you must take certain protective measures before the equipment is working. Magnets must be installed on the feeding belt conveyor to prevent the harder metal from entering the roller skin and causing the roller skin to stick. In the process of material transportation, the staff must pick out the stones in time, and ensure that the particle size of the material is below 3 mm, so that while ensuring the service life of the roller skin, it can also ensure that there will be no problems in the material forming; Previously, the staff had to check the briquetting machine rolls to see if there was any looseness or deviation. If this phenomenon occurs, continuing to work will easily cause the roll to break, and the loss is more than the roll skin.

3. Ensure the status of safe production equipment when briquetting machine is working

The hydraulic protection device is one of the cores of the briquetting machine. While providing the required production pressure for the rolls, it can also cause excessive feed between the rolls or metal blocks when the piston rod of the hydraulic cylinder is pressed and overloaded. The resulting hydraulic pump shutdown and pressure change make the accumulator play a buffer role, and at the same time the overflow valve opens to return the oil to move the piston rod, thereby increasing the gap between the two rolls. This series of actions makes the hard objects pass through the rolls to ensure the roll No more serious damage.

If you want the hydraulic protection device to play its due role, it is necessary to carry out normal maintenance work. During work, the pressure supply of the hydraulic device should be reasonable, the stroke should not be excessive, and the temperature of the hydraulic oil should not be too high or high. In normal times, the hydraulic oil should be filtered regularly. If there are impurities in the oil, it is easy to damage the seals. , Causing malfunction, and even scratches on the master cylinder.

4. Clean up in time after the work is completed

A clean production environment can ensure that employees have a positive working attitude at work. They must perform sanitary cleaning after daily work. In addition to cleaning the ground, cleaning the equipment is also one of the maintenance methods for the roller skin of the briquetting machine. There is too much dust. It is easy to cause dust to accumulate in the moving parts of the equipment and the exposed parts of the bearing. If it is not cleaned for a long time, it will affect the safety and normal production, and also cause damage to the equipment; some materials pressed by the briquetting machine are corrosive. When the equipment is cleaning, the remaining materials on the roller skin and in the ball socket should be cleaned to prevent the roller skin from being corroded for a long time, which will cause damage to the roller skin.

What should I pay attention to when using the briquetting machine in winter?

Winter is approaching. In the cold winter, many machinery and equipment will be affected to varying degrees, such as oil solidification and brittleness of rods. If you do not pay attention to heat preservation measures, equipment damage is likely to occur; and places that are too cold For example, equipment placed outdoors, although the equipment itself may have a certain degree of cold resistance, for users, cold protection can also avoid operating failures caused by operating stiffness.

As a widely used material forming machinery and equipment, briquetting machine may appear in various indoor and outdoor environments. The use of briquetting machine in winter also requires various cold protection measures. The following briquetting machine manufacturers summarize a few points based on past experience Protective measures against cold for your reference.

1. Work environment heating and cold protection

For indoors, most factories are provided with heating, so the ball press equipment in the room only needs to ensure waterproof and prevent moisture from entering key parts. For ball presses used outdoors, we can cover the work area with a simple building with waterproof and snow release to prevent snow water from flowing into the equipment, and at the same time enclose the surrounding area to prevent cold wind from affecting the operation of the operator or material caused by wind Scattered and other situations.

If there are no heating measures in the briquetting machine production workshop and it is very cold, it may be that the temperature of the briquetting machine motor is too low, the voltage is not enough when starting, and it is difficult to start. Enclosures and heating facilities can be added around the motor to ensure that the motor is at normal operating temperature, so as to ensure that the ball press machine starts normally.

It should be noted that the heating facilities of the motor should be stopped in time, because the motor itself will emit a lot of heat when it is working. At this time, if the heating continues to cause the motor to overheat, damage or burn, etc.; at the same time, the temperature is too low. When starting down, a slow test run must be performed first. After the equipment generates heat due to work and the temperature has risen, no problems can be found before normal operation can be performed.

The heating and cold protection of the working environment can also help the operator to perform normal operations. Too cold will cause the body to become stiff, and it is inevitable that operating errors will occur. It is still a small matter to delay work efficiency. If the equipment is damaged due to operating errors, or even a production accident is a major event, so I suggest you don’t be stingy with that little heating bill.

2. Pay attention to the working condition of the ball press machine

Mechanical equipment running at low temperatures requires the cold rigidity of its own parts. Generally speaking, the material of the briquetting machine is completely satisfactory, but it is not ruled out that some parts have internal defects that have not been detected when they leave the factory. After all, for mass production of parts, the inspection pass rate is difficult to achieve. This requires the ball press manufacturer to re-inspect the parts when assembling and installing the ball press to ensure that the ball press can adapt to cold conditions.

Whether it is winter or not, the use of machinery and equipment requires daily inspections, and the ball press is no exception. In winter, the ball press must be used in daily inspections. First, check whether the external parts have deformation or cracks caused by low temperature, and whether the oil of the night pressure system has solidified, and then listen to the operation of the equipment after starting up. The noise or special sound, then try to suppress it to see the work situation, and there is no problem before mass production can be carried out.

The use of ball presses in winter also requires materials. The pressing of some materials has certain requirements on humidity. If the temperature is too low, it may cause the moisture in the material to freeze and affect the pressing effect. Therefore, under the temperature of the working environment, it should be properly carried out during the material transportation process. Heat and keep warm, or perform a certain baking before pressing, but pay attention to the humidity of the material.

In addition to the above points, the use of briquetting machines in winter should also pay attention to safe production. Work in strict accordance with operating procedures and avoid various production accidents is more important. Therefore, we must provide employees with a good working environment in winter.

How to repair the wear of the main shaft of the briquetting machine?

In the molding process of powdered materials, briquetting machines are used as the main molding equipment in most cases, especially in the briquette industry. The briquetting machine has gradually become a forming equipment for some mineral powders, but as time goes by, the main shaft of some briquetting machines will appear abnormal noise and other wear conditions. How to repair the abrasion of the main shaft of the briquetting machine? The following briquetting machine manufacturers have compiled the repair methods and process steps for the wear of the main shaft of the briquetting machine for your reference.

Reasons for the wear of the main shaft of the briquetting machine

There are many reasons for the wear of the main shaft of the briquetting machine, but the main reason is determined by the characteristics of the metal used to manufacture the shaft. Although the metal is high in hardness, it has poor concession (it cannot be restored after deformation), poor impact resistance, and fatigue resistance. Poor, so it is easy to cause adhesive wear, abrasive wear, fatigue wear, fretting wear, etc. Most of the shaft wear is not easy to detect. Only when the machine is high temperature, large pulsation, abnormal noise, etc., most of the shafts are worn. This causes the machine to stop.

Repair method of main shaft wear of briquetting machine

High pressure briquetting machine

1. Traditional repair welding, etc.

Aiming at the problems of shaft and inner bore wear, traditional repair methods generally use repair welding, inserting bushings, etc. If the downtime is short and there are spare parts, generally new shafts will be replaced. The repair welding machining process itself is easy to cause local thermal stress on the shaft surface, causing the hidden danger of shaft breakage, and the repair welding machining process requires a lot of manpower and time to disassemble, transport and install the equipment, and its repair time is long, comprehensive Repair costs are high.

2. Polymer composite repair

Another method of repairing the main shaft of the briquetting machine is to use polymer composite materials and related tooling to repair the worn parts on the spot. The briquetting machine and reducer do not need to be disassembled on the basis of ensuring the repair accuracy and meeting the equipment operating conditions.

After replacing the new coupler, repair the spindle. First, repair the keyway and rolling key problem. Then, according to the measured size, the shaft shoulder is used as the positioning surface, and the shaft diameter is repaired. The machining repair mold uses the rear shaft shoulder size as the positioning for repair.

Process steps for repairing the spindle wear of the briquetting machine

Metal-briquette-machine

1. Replace the new key to align the keyway of the shaft end, and repair the severely worn position of the keyway;

2. Empty test mold, assembly mold;

3. Shaft surface treatment: use wooden blocks to protect the keyway by roasting, polishing, and cleaning;

4. Brush 803 release agent on the inner surface of the mold, bolts and bolt holes positioning pins, and dry them for later use;

5. Coat the surface of the shaft with polymer composite repair materials, the coating thickness is greater than the standard size of the shaft;

6. Tighten the mold and squeeze out the excess material from the discharge chute;

7. Let the repair material cure naturally for 16 hours and remove the mold;

8. Remove excess materials, clean out the keyway, measure the shaft diameter and meet the design standards;

9. Test the coupler by turning the keyway up to the shaft end;

10. Brush the release agent on the coupler, apply the polymer composite repair material to the shaft repair surface again, and assemble the coupler;

11. Wait for the material to solidify and complete the repair.

Regarding how to repair the wear of the main shaft of the briquetting machine, the above is the repair method and process steps organized by the briquetting machine manufacturer for everyone. I hope it can be helpful to everyone.

Repair and maintenance methods of compound crusher

The compound crusher has a high crushing capacity for hard materials, and is widely used in the crushing of machine-made sand, gravel and metal ores. We all know that we humans also need to undergo medical examinations at regular intervals, and machines are of course no exception. Routine overhaul and maintenance can discover and solve problems in advance, so as not to cause big losses. The following crusher manufacturers have sorted out the inspection and maintenance methods for the composite crusher, please look down!

Overhaul of compound crusher

1. The reliability and sensitivity of the air pressure automatic switch. The start and stop of the compound crusher are usually directly driven by the air pressure automatic switch (air pressure relay) to directly drive the AC contactor to automatically control the motor. Most of the pneumatic automatic switches adopt a mechanical structure, which uses springs to compress and release energy to operate the contacts. Perhaps it is due to the congenital deficiency of the automatic air pressure switch or the influence of different reasons such as improper adjustment and machine vibration.

2. The mechanical operation of the compound crusher is relatively simple in electrical control (not the low-power type). Generally, it is a single unit that works on a stand-alone basis. It is in an unemployed situation and the failure is not handled in time. Relatively speaking, the failure is repeated and enlarged. The rate has increased.

3. Hammer head loss: The lime crushing function is mainly realized by the series of impact, impact, shearing, squeezing and other forces between the hammer head and liner of the composite crusher and the lime. The hammer head is one of the main easy-wearing parts. After a fixed time of work, the working surface of the hammer head will be damaged and the surface shape will change. At this time, the gap between the hammer head and the liner (generally required to be less than 10mm) increases , The friction force between each other is greatly reduced, which is the main form of hammer wear loss.

The loss of the hammer is inevitable, and only the use time of the hammer can be increased as much as possible. First, ensure the accuracy of the lime entering the composite crusher, and avoid metal lumps and other sundries entering the composite crusher to damage the hammer or liner.

Compound Crusher

Secondly, wear-resistant materials such as high-carbon manganese alloy cast steel or cast white iron are used as the hammer head material to improve the wear resistance coefficient of the hammer head and reduce the loss in the general case of the number of replacements. It can also be achieved by adjusting the hammer head.

The technical parameters of the crusher will also affect the service life of the hammer, the main ones being the power and speed of the rotor. They are not only related to the production capacity of the crusher, but also to the degree of impact hardening of the hammer. The hammer head has a good impact hardening degree, and its service life will be prolonged. It is found that the hammer mill loss is serious, and it must be replaced or repaired in time to ensure the normal ability of crushing lime.

4. Bearing problems: Bearing damage is mainly caused by the unbalanced installation of the rotor or bearing, the aging of the bearing seal ring, the dust entering after wear, the partial force of the rotor during high-speed operation, and the insufficient lubrication of the bearing. Limited by the working environment and working methods, it is required to adopt the specified coordination coefficient; when installing, pay attention to the balanced installation of the rotor. Generally, the bearing with strong load-bearing capacity and good self-aligning performance is used as the rotor bearing. The calculated life of the bearing should be selected 5000-10000h is appropriate.

Due to the limitation of the working environment and working mode of the compound crusher, the matching requirements between the outer ring of the bearing and the bearing seat hole and the inner ring of the bearing and the journal are different from those of ordinary equipment, and the specified matching coefficient is required. Pay attention to the balanced installation of the rotor during installation. Lubricating oil should be added to the bearings regularly to ensure that the metal hard pieces do not enter the composite crusher, so as to prevent the rotor and the bearing from being damaged by strong local forces and causing damage to the hammer. In addition, pay attention to the replacement of hammerheads that are seriously damaged, so as to prevent hammerheads with different masses from generating different centrifugal forces during high-speed operation, which will cause the rotor and bearings to be unbalanced and worn during operation.

5. Sound failure: During the operation of the compound crusher, a very violent percussion sound is produced in the crushing cavity.

Firstly, immediately turn off the power of the crusher, stop the machine and clean the crushing cavity; secondly, the machine will produce huge vibrations during operation, check whether any materials that cannot be crushed enter the crushing cavity; then, check the tightening of the liner and the hammer The gap between the liner and the liner is to confirm whether the wear-resistant liner has fallen off.

6. Particle size problem: The particle size of the compound crusher is too large during the discharging process.

First, adjust the front and rear impact frame gaps or replace severely worn liners and hammers; second, adjust the position of the impact frame so that the two sides and the frame liner can reach the relative gap to ensure the discharge granularity.

Daily maintenance of compound crusher

The compound crusher is mainly used for crushing the stone material, and it bears a relatively large degree of wear and pressure, so the operator needs to check and maintain the crushing equipment on a regular basis. We often say that we need to maintain the equipment, so what should we do to maintain the equipment? What are the main things to do?

1. The first thing to do is the daily inspection: the daily inspection of the composite crusher is the inspection before opening and during operation. The inspection includes the wear condition of the parts, whether the bearing is lubricated, whether the fasteners or bolts are loose, and the machine Check whether the discharge granularity of the equipment is uniform, whether there is abnormal vibration inside the cylinder, and whether the temperature rise of the compound crusher is normal. This is a basic matter and must be checked well, otherwise it will malfunction and affect normal work.

2. Then there is the important lubrication work: the lubricating oil is to reduce the friction of the equipment and reduce the degree of equipment damage. This requires that there should be no impurities or other sundries in the lubricating oil. The bearing oil needs to be filled with half of the solvent in the entire space. If the oil is too full, the grease will easily overflow. Be sure to pay attention to the lubricating oil temperature during operation to avoid excessive temperature and burn out parts.

3. Pay attention to keeping the equipment clean: the crusher is crushing stones, and it is inevitable that dust will enter. If the equipment is cleaned irregularly, it will cause the equipment to wear out, so it should be cleaned regularly.

4. On the plane of the bottom frame of the movable device, dust and other debris should be removed to prevent the movable bearing from moving on the bottom frame when the machine encounters unbreakable materials, which may cause serious accidents.

crusher

Maintenance of compound crusher

(1) Mainly operating workers, assisted by maintenance workers, dismantling and inspecting parts of the equipment according to the plan, cleaning the specified parts, dredging the oil passages and pipelines, replacing or cleaning the oil lines, felts, and oil filters, and adjusting various parts of the equipment Fit the gap and tighten all parts of the equipment. The maintenance time is 2-4h. After the warranty is completed, a record should be made and the defects that have not been cleared should be noted. The Mechanical and Electrical Equipment Department organizes the acceptance. The operator should fill in the maintenance record in detail, and the acceptance form shall be submitted to the Equipment Department for archiving.

(2) Mainly maintenance workers, and operators participate to complete. 2. Maintenance is included in the equipment maintenance plan, part of the equipment is disassembled, inspected and repaired, worn parts replaced or repaired, cleaned, oil changed, and electrical parts are inspected and repaired, so that the technical condition of the equipment meets the requirements of the prescribed equipment integrity standards. Second, the maintenance time is about 1-3 days. After the completion of the second guarantee, the maintenance worker shall fill in the detailed maintenance record, which shall be checked and accepted by the Mechanical and Electrical Equipment Department and the operator, and the acceptance form shall be submitted to the Equipment Department for archiving.

(3) A compulsory maintenance system that focuses on the operator and pays equal attention to the maintenance of the equipment. The three-maintenance system is to rely on the staff, give full play to the proactiveness of the staff, implement group management and group repair, group combination, and there are ways to do a good job in equipment maintenance.

After reading the article, know the daily inspection and maintenance methods of the compound crusher. These are all necessary. Routine overhaul and maintenance of the compound crusher can increase the life of the equipment and increase productivity.

What is the selection method of high pressure roller mill? What should I pay attention to when using?

The high-pressure roller mill is very popular in today’s major mining companies. The reason cannot be separated from its efficiency and energy saving. For some small partners who have not yet purchased, the high-pressure roller mill is still a relatively unfamiliar crushing equipment, so When purchasing, it is not clear what kind of power equipment you want, so the high-pressure roller mill manufacturer is here to help you select the high-pressure roller mill, and hope that everyone can choose the right equipment.

Advantages of high-pressure roller mill

The high-pressure roller mill has a good crushing effect and strong processing capacity, which can greatly improve the processing capacity of the ball mill. It has high energy-saving effects and considerable economic benefits. It is suitable for crushing and grinding a variety of metal ores, non-metal ores, pellets, steel slag, etc. Operations can bring many improvements to various production systems:

1. After the crushing system is added to the high-pressure roller mill, the particle size of the fine crushed cone discharge can be doubled, which can increase the production capacity and reduce the energy consumption of the crushing;

2. After the grinding system is added to the high-pressure roller mill, the particle size of the ball mill is greatly reduced. While increasing energy and reducing consumption, the broken minerals are microscopically cracked along the crystal lattice direction, thereby improving the grinding efficiency and benefiting Later selection of minerals;

3. The production process of the high-pressure roller mill enables the material to achieve “more crushing and less grinding”, which can reach the ultra-fine particle size of less than 3 mm.

High-Pressure Grinding Rolls

Selection method of high pressure roller mill

The selection of the high-pressure roller mill is mainly determined by the unit processing capacity of the equipment, motor power, roll gap and roll surface life. These data are different for equipment of different specifications:

1. Unit processing capacity

According to different feeding particle size, ore hardness, ore density and product size requirements, the unit processing capacity of the same high-pressure roller mill is also different. If you want to choose equipment with higher processing capacity, you need to have the requirements for materials and products. I have a deep understanding that under normal circumstances, the density of the cake is about 85% of the density of the ore. The factors that affect the unit processing capacity of the high-pressure roller mill are:

(1) Diameter of pressure roller of high pressure roller mill;

(2) Width of pressure roller of high pressure roller mill;

(3) The linear velocity of the pressure roller of the high-pressure roller mill, etc.

2. Motor power

The motor power of the high-pressure roller mill does not correspond to its specifications and models. It is usually calculated and determined by the tested unit power consumption. The power of a single motor should be 0.69 high-pressure roller mill unit processing capacity multiplied by unit power consumption. Some small partners choose to choose a larger motor, which causes energy waste.

3. Roll gap and roll surface

Roll gap and roll surface are also one of the factors in the selection of high-pressure roller mills. A reasonable roll gap should be between 2.8% and 3.0% of the roll surface diameter, and the feed size should not exceed the width of the roll gap; Under normal circumstances, the width of the side material is twice the reasonable roll gap, and the smaller the occupancy rate of the side material, the better the rolling effect. Therefore, as far as possible, choose a device with a wider roll surface while ensuring the performance of the equipment.

4. Roll surface quality and linear speed

The roller surface material is an important factor in determining the life of the roller surface. Therefore, when selecting a high-pressure roller mill, you must understand what the material used on the roller surface is. At the same time, it is recommended to select a linear speed equivalent to the diameter of the roller surface. The upper guarantees the life of the roller surface.

5. Recommendations for selection

Based on the above selection factors, it can be seen that the larger the size of the high-pressure roller mill, the better. Due to the different feed size, it is not a good choice to choose a larger size high-pressure roller mill. Therefore, it is recommended to ensure that the When the throughput is satisfied, choose a model with a smaller roll surface diameter as much as possible. The advantages of doing so are:

(1) The roll diameter is small and the roll width is large, which can reduce the influence of the boundary effect on the crushing effect;

(2) Reduce the weight of the whole machine, reduce the tonnage of the plant, and reduce the investment in civil construction;

(3) Reduce the inventory value of spare parts;

(4) Conventional spare parts can be exchanged and deployed to effectively ensure the stability of the system.

Use of roller mill

Precautions for the use of high-pressure roller mill

1. The system pressure should be determined according to the nature of the crushed minerals by the high-pressure roller mill and the qualified particle size to be crushed. When meeting the crushing particle size requirements of the production, the smaller the roller surface pressure, the better. If the pressure on the roller surface is large, the energy consumption will be large, the wear of the roller surface will be aggravated, and the economic cost will increase. At the same time, the crushing effect does not increase linearly with the increase of the roller surface pressure. When the material is crushed to a certain extent, the roller surface pressure increases, and the crushing effect almost changes little.

2. At present, there are mainly three types of roll surface on the market: surfacing roll surface, alloy roll surface and stud roll surface. It can be selected according to different material properties. In addition to quality and linear speed, everyone should pay attention to the particle size of the feed when using it. If the feed size is too hard and wear-resistant, it will easily wear the roll surface. At the same time, pay attention to prevent the entry of metal objects, and directly Damage to the roll surface.

3. The moisture content of the material will affect the establishment of the pressure chamber of the high-pressure roller mill. If the moisture content of the material is large, it is difficult to form a material cushion, and the roller surface matrix will wear out quickly without the material cushion. But at the same time, the material cannot be completely water-free, especially when the grinding particle size is relatively small (less than 1 mm), the dried material is prone to pulse-like vibration, which has a great impact on the entire high-pressure roller mill. Under normal circumstances, the moisture content of the material should be controlled between 1.5% and 8%.

The above is all the content of the high-pressure roller mill selection suggestions, which are the methods we summarized through other documents and test results. I hope it can be helpful to everyone.

What are the different points of attention when using different stages of briquetting machines?

The working environment of the briquetting machine is harsh and the work intensity is high. There are different points of attention for the work of the briquetting machine in different periods. The necessary maintenance and maintenance can extend the use time and life of the briquetting machine. Next, the editor of Luoyang Zhongyuan Mining Machinery will tell you what are the different points of attention in different stages of briquetting machines.

1. Test machine phase

The relevant installation and preparation work must be done before the test machine. Plan ahead and sort out the installation of the machine, preparation of materials, etc. After starting the machine, it must be idling for a few minutes before loading. The significance of this process lies in the preheating of the machine’s running-in. And if there is a problem, it can be repaired and solved in advance in time. It will be very troublesome and inconvenient to solve the problem after the material is put into production.

High pressure briquetting machine

2. Preparation before production

Check whether the circuit is connected properly and whether the raw materials are adequately prepared. In the absence of raw materials, the restricted balls are unstable. Only by ensuring sufficient materials can the restricted balls be robust and not easily broken.

Medium-Pressure-Briquette-Machine

3. The production stage

In the production process, the material supply time must be adjusted. If the supply is insufficient, the pressed ball will be unstable, so the decision should be made according to the situation of the ball when the material is supplied. The better strength prevails. If the strength is too small, the strength is not good. If the size is too large, the machine will become too heavy, which will cause the motor to be too heavy, and it is easy to damage the machine or burn the motor. Time to monitor whether the conveyor position is normal. When the conveyor position is not normal, you need to adjust the base support. If there is a deviation, you must correct it in time.

4. After production

In the briquetting process, there will be a lot of dust and other dirty materials in the briquetting machine. After use, it must be mechanically cleaned. Check whether the machine is faulty, such as whether the screws are loose or not. In many cases, major faults are caused by minor problems. Therefore, we must clean and inspect the equipment after production.

What are the precautions for using the ball press production line

For various coal-related industries and powder processing enterprises, the ball press machine is very familiar, and it should be very clear. The entire material forming production line can be collectively referred to as the ball press production line, because the core of the entire material forming The equipment is a ball press.

When using the briquetting machine production line for material processing, the unavoidable topic is the precautions for use, because the correct use can ensure normal and effective production. As a professional briquetting machine manufacturer, Zhongyuan summarizes several precautions for using the briquetting machine production line ,For reference.

1. Familiar with the equipment and use it skillfully

Operators must be proficient in the structure and performance of the ball press equipment production line and the role of each component. Only by understanding the principle of the equipment, the structure and performance of each part, can the ball press be used correctly and better, so as to avoid some unnecessary errors. , Resulting in dangerous situations such as equipment damage and safety accidents.

Medium-Pressure-Briquette-Machine

2. Ensure lubrication measures

For mechanical equipment, the interaction between parts and components, and between parts and parts, is the basic principle of transmitting equipment power. If the transmission components such as bearings and gears cannot be properly lubricated, it may cause them to be lubricated. The transmission and work are stuck, or even damaged during hard work, which affects safety and normal production. Therefore, lubricate the parts marked in the lubrication diagram while keeping the lubrication points clean.

3. Pay attention to check the production line and equipment

When the ball press equipment production line is in operation, pay attention to check that the bearing temperature of each part does not exceed 60℃, and check whether the bolts of each part are loose, whether there are abnormal noises in the transmission part, and whether the equipment is abnormal. If there is a problem with the equipment parts, it is necessary to stop work in time to maintain the equipment to prevent accidents.High pressure briquetting machine

4. Ensure cleanliness

A clean and tidy working environment is also one of the necessary environments to improve work efficiency. The ball press production line processes powdery materials, so it is normal for dust to be present during work, but after finishing work, it is necessary to deal with the dust floating on the equipment in time. In order to prevent dust from entering the equipment and abrasion of equipment parts, in addition to the working area of ??the ball press production line, it is necessary to ensure the sanitation and cleanliness of other areas, so that employees have a good working environment.

5. Adhere to the “Four Sets” principle

The operators of the ball press production line must abide by the “four determinations” principle, that is, determine the project, determine the personnel, determine the time, and determine the measures. The “Four Sets” principle of safe production is the basic requirement to ensure safe production, and it is also the basic management method. No matter how high the production output is, it is not as important as safe production.

The above are the precautions for the ball press production line summarized by the ball press manufacturer. In general, safe production is the foundation of production. Not only the safety of equipment, but also the safety of personnel and the safety of products are very important.

What are the advantages of the application of powder briquetting machine in the metallurgical industry?

In recent years, powder metallurgy has gradually become a processing method for manufacturing new materials. Powder metallurgy is a process in which various metal powders are used as raw materials to manufacture finished products and metal materials through compression molding, sintering and necessary subsequent processing. With the use of cheap iron powder, powder metallurgy technology has begun to be applied on a large scale in industries such as automobiles and textiles. Speaking of powder metallurgy, it is inseparable from the powder briquetting machine, which is a kind of equipment that presses the powdery materials that are difficult to press into balls. So what are the advantages of the powder briquetting machine for the metallurgical industry?

The application advantages of powder briquetting machine in the metallurgical industry are mainly reflected in the following aspects:

High pressure briquetting machine

1. Environmental aspects

Powder scrap should be a relatively difficult project for the metallurgical industry. Stacking and occupying space will also cause certain pollution to the environment, and it will be more troublesome to transport. The powder briquetting machine is also more effective in collecting dust. It can be said that it can play a very good role in improving the environment. If the metal powder is directly transported, it will not only cause dust leakage and pollution problems, but also cause material loss.

2. Resource reuse

For the metallurgical industry, the value of many dust and scraps is still relatively high. For example, many metallurgical powders can be produced through general-purpose and platform-based technologies to achieve many new materials. Its scalability is very strong, and the pellets can be re-invested in production research through the compression of the mineral powder briquetting machine, which greatly increases the profit of the enterprise.

Medium-Pressure-Briquette-Machine

Because metal powder cannot be directly used for smelting, it needs to be pressed into pellets before it can be put into furnace metallurgy. Therefore, the application of powder briquetting machine in the metallurgical industry is more and more extensive. Here, Zhongyuan mining equipment manufacturers remind everyone to use it. When the mineral powder briquetting machine is used, the material should be pretreated to prevent the material from jamming and clogging at the feed inlet. At the same time, it can also improve the spheronization rate and the strength of the mineral powder briquetting machine.

What are the ways to reduce the noise of the briquette machine

For employees working on the factory floor, no matter how hard they are, no matter how tired they are, it is their job. The content of work cannot affect their working mood, and then affect their work quality. On the contrary, under the influence of some other external factors, it will affect the physical and mental health of employees. There is a lot of damage, one of which is the noise made by mechanical equipment, especially the noise of large-scale mechanical equipment.

As a large-scale forming machinery and equipment, the ball press machine emits much louder noise than other small equipment. Under the influence of the noise of the ball press machine, the hearing and mood of the employees will deteriorate, and the corresponding work .The efficiency will definitely drop a lot, so how to reduce the noise of the ball press has become a problem that all operators need to solve.

For mechanical equipment such as briquetting machine, the noise source is nothing more than the friction sound of various parts, the sound of parts impact, the noise of gears, the noise of bearings, etc. To completely eliminate these noises is a idiotic dream, which is impossible to achieve, but it can be achieved through appropriate Way to reduce these noises.

Reduce the noise of the briquetting machine

Metal-briquette-machine

1. Reduce the gap between components

The briquetting machine, like other mechanical equipment, has component gaps. Because of the gaps between the components, the components collide with each other during work, which will generate noise. Anyone who understands mechanical fit knows that it is impossible to eliminate this kind of gap, but if we can reduce the gap, then the corresponding collision noise will be reduced.

2. Partial isolation

To reduce the noise of the briquetting machine, a simple and rude way is to isolate some of the noise-producing parts, such as isolating the motor. In order to prevent the motor from overheating, the motor can be placed on the other side of the wall during installation. , And ensure smooth maintenance, in order to achieve the effect of sound insulation and noise reduction.

3. Use bottom noise bearings

For the briquetting machine, the bearing is a part that runs through the entire equipment. If the bearing used is inferior, not to mention, the noise alone cannot meet the work requirements, so when choosing to buy the briquetting machine, be sure to confirm The bearings it uses are pros and cons. The bearing is a bit too long when it gets bigger. You only need to know that the bearings also have bottom noise bearings and silent bearings. You can choose equipment for bearings.

To sum up, when buying and installing a ball press machine, you must first choose a regular factory, such as the ball press machine produced by Luoyang Zhongyuan Mining Machinery Equipment Co., Ltd., which has fine workmanship, small gaps between components, and correspondingly low noise. Moreover, the installation workers of large factories are trained and guided, and the gap will be minimized during installation.

Noise reduction during feeding

High pressure briquetting machine

To reduce the noise of the ball press machine, it is not enough to reduce the noise of the equipment, because the work of the ball press machine is actually to process the materials in the entire production line, so noise reduction work should also be carried out during feeding. . For other equipment in the production line, we can deal with it in accordance with the noise reduction method of mechanical equipment, but other methods are needed during the feeding process.

1. Reduce bulk materials

After the material is crushed by the crusher, the size of the material is different. The large material is not stable enough in the transportation process, it will produce rolling displacement, and then make a louder sound. Therefore, it is necessary to select the large material and proceed to the second step. After the second crushing, enter the ball press equipment.

2. Pick out the metal block

The collision and friction between the metal block and the conveying belt conveyor is also one of the sources of noise. Moreover, the metal block and other metal impurities enter the ball press directly without being selected, which will also cause damage to the roller skin. Rationale.

3. Reduce belt friction

The feeding belt conveyor and feeding bearings should be maintained in time. If the noise of the bearing is less oily and worn, and the belt friction sound is emitted one after another, it can be regarded as “adding fire” to the entire working environment.

Noise reduction outside the working environment of the equipment

Medium-Pressure-Briquette-Machine

In addition to the urgent reduction of noise in the working area of the ball press equipment, noise reduction outside the working area is also very necessary. After all, an enterprise cannot have only one molding equipment assembly line, but there are still other office, transportation and storage areas.

1. Set up a soundproof room

Before installing the ball press, there are conditions that can be used to build a soundproof structure in advance to isolate the noise of the ball press inside the plant. At the same time, the soundproof wall can also absorb a certain amount of noise and reduce the volume.

2. Add sound insulation wall

If the plant and ball press equipment have been installed, asbestos and other sound insulation materials can be added to the walls of the plant to ensure that less sound sources radiate outside the working area.

Through the above points, it can be seen that the noise reduction of the briquetting machine must be targeted, and the noise of the machine cannot be completely eliminated, and it can only be reduced as much as possible. There is also need to ensure the tightness of the connections between the machines, and pay attention to proper maintenance. Zhongyuan Mine, the manufacturer of briquetting machine, reminds you that only by taking good care of the equipment can the equipment provide better service for us.