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Determine the required vertical roller mill model and milling level according to the incoming and outgoing material particle size.

Different types of vertical roller mill feed ports are different, and their model size also determines the size of the feed port, which requires the vertical roller mill manufacturer to produce according to the particle size of the material to be milled by the concentrator.

If the content of coarse particles (large dry outlet size) in the feed is high, the required milling is relatively large, which will affect the productivity and cause blockage to a certain extent; When the content of fine particles (close to or less than the outlet size) is large, the milling to be realized is relatively small, so its productivity will be improved accordingly.

If the height difference between the end face of the bearing seat and the end face of the bearing is too small, the positioning boss on the sealing gland will lose its fixed positioning function, resulting in the non concentricity of the sealing gland and the bearing, resulting in the failure of the sealing function of the sealing gland and oil rejection.

Check the vibrator regularly to prevent the vibrator from sliding; Select lubricating oil with high viscosity to reduce oil rejection. The service life of vertical roller mill surface is short, and the main factors affecting the aging of screen surface are screen surface structure, material and tightness.

At present, many vertical roller mills use polyurethane screen surface. Reasons and Countermeasures: on the one hand, the anti-aging property of polyurethane itself is not high.

On the other hand, if the staff do not tighten the screen surface when installing the screen surface, that is, when installing the screen surface, only both sides of the screen surface are fixed and the middle is not fixed, the screen surface and bracket will collide and rub up and down continuously during operation.

The operator of the calcite grinder milling plant shall regularly carry out preventive inspection on the transmission part.

In the inspection process, it is particularly necessary to pay attention to the longitudinal and transverse clearance of the bearing to ensure that the spacing meets the requirements, and it is also necessary to add lubricating oil in time to avoid serious wear; Check the bearing support every week and add lubricating oil in time; Observe the operation of calcite grinder milling plant.

If there are abnormal conditions, stop the operation and conduct system inspection to avoid greater accidents. Too high bearing temperature of calcite grinder milling plant is also a common fault of calcite grinder milling plant in use.

If the tension of the triangular belt of the barite ore mill is too large, the additional bending moment of the shaft and the synthetic moment will be increased.

The stress in the working process of the belt will increase significantly, even exceed the allowable stress of the shaft, which will directly lead to the destruction of the shaft. Therefore, the tension of V-belt needs to be adjusted in time.

It is suggested that the tension of V-belt should be reduced as much as possible on the premise of ensuring normal transmission. Of course, this phenomenon can be avoided by changing to flexible connection.

LUM ultrafine vertical mill feeds mainly through feeding materials to the mine department, and the main function of the feeding department is to quickly feed materials and graded returned sand into the LUM ultrafine vertical mill.

During the operation of the LUM ultrafine vertical mill, it is necessary to ensure uniform ore feeding. The so-called uniform ore feeding means that the number of ore feeding is stable and the particle size composition of the ore feeding remains unchanged.

So how important is the uniformity of the LUM ultrafine vertical mill? If the ore is not fed in proportion, if the feeding amount is appropriately increased, the grain size of the mill product will become coarser and the amount of returned sand will increase.

All users must understand the basic knowledge of the equipment in detail before purchasing the equipment, and then conduct comprehensive analysis and summary, so as to buy a satisfactory ideal barite grinding mill model.

Although the production efficiency of barite grinding equipment is very high, for all users, it is necessary to understand the basic properties of grinding raw materials before purchasing, and have a detailed understanding of the hardness, humidity and water content of raw materials, and then purchase according to the statistics of these elements, so as to purchase purposefully, To buy a high-quality barite grinding mill in a short time and reduce the chance of being cheated.

When purchasing barite grinding mill, you must find professional well-known manufacturers, so that the product quality produced by such manufacturers will be more guaranteed.

In reality, many users only pay attention to the price of the equipment and blindly crave for cheap.

Influence of materials on vertical roller mill grinding efficiency is mainly reflected in material properties and grinding particle size.

Different ores have different properties and hardness, and the corresponding grinding process should also be different. For example, fluorite, tin ore and other ores that are easy to be crushed are different from other ores.

Attention should be paid to over grinding in ball milling. The coarser the grinding particle size, the longer the time required for grinding to the separation stage, and the greater the loss of grinding equipment.

At present, more crushing and less grinding is one of the main principles of concentrator design and production. For ores of the same nature, the higher the content of fine particles in the grinding products, the higher the grinding efficiency.

When the ultrafine mill operated at half load for 8 hours, it began to add materials to full load without any abnormality, and continued to operate for 15 hours.

During this period, the current of the main motor has no abnormal fluctuation, the lubrication of each lubrication point is normal, there is no oil leakage, ore leakage and water leakage, and the temperature of the main bearing is maintained at about 53 ℃.

The success rate of ultrafine mill commissioning can be greatly improved by adopting the phased commissioning process.

For ultrafine mill commissioning staff, they should be familiar with and master the operation skills and detailed process flow of ultrafine mill commissioning.

After the installation of the calcite grinder milling plant machine and before it is officially put into production, it is necessary to carry out strict commissioning of the newly installed calcite grinder milling plant machine.

The commissioning of calcite grinder milling plant machine is of great significance to the grinding stage and the whole concentrator.

By observing and analyzing the commissioning and operation of the calcite grinder milling plant machine, on the one hand, it can test whether the newly installed calcite grinder milling plant machine can operate normally.

During vertical roller mill operation, periodic inspection, maintenance and other operations shall be carried out according to the regulations.

During the operation of vertical roller mill, the problem of excessive bearing temperature is not only due to the reasons mentioned in the appeal, but also due to poor bearing quality or improper bearing selection.

In order to solve the problem that the temperature of vertical roller mill is too high, in addition to finding and solving problems in time, attention should also be paid to the purchase and selection.

It is recommended to choose a reliable and reputable manufacturer in order to improve the operation efficiency of vertical roller mill.

The Raymond mill mostly operates in wet environment, but it is not protected from dust.

When some fine dust enters The Bearing Seat Of Raymond Mill running at high speed, the lubricating oil in the bearing seat will deteriorate and the quality will deteriorate, resulting in the wear of Raymond mill bearing.

When the Raymond mill bearing runs in the worn state, it will increase the friction and heat, resulting in an increase in the temperature of the Raymond mill bearing.

Solution: the Raymond mill bearing is worn due to lubricating oil, so it is necessary to clean the Raymond mill bearing housing and bearing during maintenance, and check and dredge the refueling pipeline; Ensure that different types of grease are not mixed; If the lubricating oil of other models is replaced, the original lubricating oil shall be cleaned and replaced.

Note: moisture proof and dust-proof measures shall be taken for grease storage, and lubricants of the same brand and model shall be selected as far as possible.

The reasons for the high material level in the vertical roller mill are as follows: first, the reduction of water material ratio reduces the carrying capacity of water, resulting in the increase of material level in the mill; Second, the inlet material diameter is too large, which increases the residence time of the material in the vertical roller mill, resulting in too high material level in the vertical roller mill.

In order to ensure the stable and efficient operation of the equipment, in addition to selecting the type of equipment in line with the beneficiation process, daily maintenance and repair are particularly important.

Therefore, it is recommended that the mine owners consult the equipment manufacturers with the qualification of the overall concentrator when selecting the vertical roller mill, and select the equipment suitable for their own process flow, so as to fundamentally ensure the production efficiency and economic benefits of the whole concentrator.

The amount of water flowing through the cylinder of the LM vertical roller mill should correspond to the material throughput of the LM vertical roller mill and be controlled within an appropriate range.

The water flowing through the cylinder of the LM vertical roller mill is mainly composed of the carrying water and the underflow of the cyclone.

Under normal conditions, the bottom water flow of the hydrocyclone generally remains unchanged, but the premise is to ensure that the bottom flow sand setting nozzle of the hydrocyclone is free of wear.

When the bottom flow sand setting nozzle of the hydrocyclone is worn, the working conditions of the hydrocyclone itself change, which will increase the bottom water flow of the hydrocyclone and reduce the top flow overflow, resulting in an increase in the water entering the LM vertical roller mill.

When the inner liner of the ore milling plant is damaged or falls off, obvious impact sound can be heard locally.In case of such situation, stop the ore milling plant as soon as possible and deal with the damaged liner immediately, so as to avoid large-scale damage to the liner of the ore milling plant.

Slurry is easy to be thrown out at the outlet of the ore milling plant.During normal operation of the ore milling plant, slurry flows out of the outlet sundry pipe and is mixed with small stones.

The water material ratio in the ore milling plant is out of regulation, and the amount of water flowing through the cylinder of the ore milling plant is an important parameter in operation, and its size reflects the carrying capacity of solid particles in the ore milling plant.

The high wind pressure causes the fan to heat, which makes the fan temperature too high. During the operation of barite ore grinding plant, unconscious touch may cause the wind pressure of the fan to change, resulting in motor heating. When the fan temperature is too high, it will seriously affect the normal operation of barite ore grinding plant. Therefore, avoid such situations when using barite ore grinding plant.

Due to the equipment itself, for example, the equipment quality is not qualified, which requires users to carefully select large brand and high-quality equipment, such as Zenith barite ore grinding plant. In fact, normal maintenance is also very important, so Zenith suggests that you carry out regular maintenance on barite ore grinding plant to prolong the service life of the equipment.

Zenith specializes in producing Raymond Mill powder machine for more than 20 years, continuously introduces advanced technology at home and abroad, improves and develops barite ore grinding plant, and strives to provide customers with reasonable barite ore grinding plant equipment.

Many people don't know how to solve this problem. Next, Zenith will explain to you the solution to the problem of too high temperature in Raymond mill. When the temperature of Raymond mill is too high, we need to find out the cause of the temperature rise first, and then apply the medicine to the case. 

The temperature in Raymond Mill cabin is too high, mainly because a lot of friction and pressure are required to grind materials during milling, so how to reduce friction is the top priority. Zenith suggests that customers regularly add high-performance lubricating oil to bearings, grinding rollers and other parts, which not only solves the problem of friction heating, but also increases the flexibility of various parts and improves the production capacity of Raymond mill. 

Pay attention to ventilation. The external air can be removed at the dust removal position to make the external air flow convection with the air flow in the cabin, so as to slowly reduce the temperature in the mill room. If necessary, a high-power exhaust fan can be installed for indoor cooling.