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How to calculate the output of the high pressure roller grinding mill?

In different mines, the particle size, ore hardness, ore density, and product requirements of the high-pressure roller grinding mill are different. The specifications and models of the selected high-pressure roller mill equipment are also different.
Usually the cake density is about the true density of the ore. 85%, the exact unit processing capacity needs to be determined through experiments. The calculation formula for the processing capacity of the high-pressure roller mill is Q=D×B×V×q. In the formula, Q is the processing capacity calculated by the high-pressure roller mill; D is the diameter of the selected high-pressure roller mill; B is the width of the selected high-pressure roller mill; V is the linear speed of the selected high-pressure roller mill; g is the unit processing capacity .

high-pressure roller grinding mill
High-pressure Roller Grinding Mill
 

1. High-pressure roller mill production line configuration
 

Common mill powder production lines are generally equipped with host, analyzer, blower, separator, motor, hoist, feeder, electric control cabinet, etc. These accessories can be flexibly selected according to the user's site. Therefore, among many equipment, the ultra-fine mill plays a vital role in the production line.
high pressure roller mill production line configuration
 
 

2. Working principle of high pressure roller mill

 
In the entire production line, the main thing is to convert materials into finished products. After the material is crushed to the required particle size, the material is sent to the storage hopper by the elevator, and then sent to the main grinding chamber by the feeder evenly and orderly. Under the action of centrifugal force, the grinding roller swings outwards and presses tightly. In the grinding ring, the shovel is responsible for feeding the material between the grinding roller and the grinding ring, so that the grinding roller can roll to achieve the effect of crushing.
Working principle of high pressure roller mill
 
 

3 Working process of high pressure roller mill

 
The bucket elevator is lifted to the storage hopper, and then quantitatively sent by the feeder into the main machine cavity for grinding. The grinding roller installed on the turntable in the main machine cavity rotates around the central axis, and there is a large movement between the grinding roller and the grinding roller pin. The gap, under the action of centrifugal force, the grinding roller swings horizontally outwards, so that the grinding roller presses the grinding ring, and the grinding roller rotates around the grinding roller pin at the same time.
 
The material passes through the gap between the grinding roller and the grinding ring. The grinding and grinding effect is achieved due to the rolling of the grinding roller. The grinding rollers are arranged in 4 layers. The material passes through the first grinding roller and the grinding ring for one pulverization, and then passes through two The third and fourth layers are crushed twice, three times, and four times. Therefore, the materials are fully crushed and ground, and the fineness of the product obtained is fine.
 
The ground powder falls on the chassis due to gravity, and is blown to the classifier above the main machine for classification under the airflow of the blower. Those with coarser fineness will still fall into the main machine for regrind. The wind flows into the pulse dust collector, and is discharged through the discharge valve after collection. The purified air flows into the blower through the residual air pipe above the pulse dust collector. The air path is cyclic. Except for the positive pressure from the blower to the grinding chamber, the remaining pipes The airflow in the road flows under negative pressure, and the indoor sanitary conditions are good.
 
Because the moisture in the material is heated and evaporated into gas during grinding, the gas leaking from the flange joints and the feed port in the pipeline causes the air volume in the circulating air path to increase, and these increased air volumes pass between the blower and the host The bellows interface is discharged into the atmosphere.
 
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