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When all kinds of ore materials are grinded by Raymond mill, some materials with high moisture content are not suitable for Raymond mill. So, how much is the suitable grinding humidity of Raymond mill? When the moisture content of ore or mineral is too high, it will reduce productivity and cause corrosion damage to the machine. Shuguang Heavy Machinery suggests that the humidity of Raymond mill should not exceed 10%, which is the ultimate critical point.
The working principle of Raymond mill:
The material that needs to be crushed is added into the machine from the hopper on the side of the hood, and revolves around the vertical axis by means of the roller grinding device suspended on the main machine plum blossom rack. At the same time, it rotates itself. Because of the centrifugal force during rotation, the roller swings outward and is pressed tightly on the grinding ring, so that the shovel cutter can lift the material and send it between the grinding roller and the grinding ring. Rolling rolling of grinding rollers can achieve the purpose of crushing materials. Then there is air flow generated by fan, which is circulated in the grinding machine. The air pressure in the grinding room is negative. The grinding material is sucked into the grinding room at the top of the analyzer to select the powder.
Because the grinding material has a certain moisture content in the grinding room, the heat generated during grinding changes the gas evaporation in the grinding room. Air flow, and the inadequate connection of the pipes of the whole machine make the outside gas sucked in, which increases the circulating air flow, resulting in less powder output or even explosion of the mill. To this end, Raymond mill has set up explosion-proof measures on the upper part of the body, which can avoid the accidental damage caused by the explosion of the whole machine to the greatest extent. At the same time, this situation. In addition, the balance of air flow can be achieved by adjusting the residual duct between the fan and the main engine, and the surplus gas can be introduced into the small cyclone collector to collect the fine powder brought in by the residual gas. Finally, the upper exhaust duct of the small cyclone collector can be discharged into the atmosphere or introduced into the dust collector to purify the exhaust air. However, for the operator, the exhaust gas can be purified. The technical requirements of the staff are relatively high, and they need to be found and adjusted in time.
It is not difficult to see that Raymond mill is using wind to achieve the purpose of flour separation. If the material is too humid, it will stick to the inside of the machine and can not be sucked up by the flour separator. In this case, not only production will be reduced, but also the gas in the grinding room will be increased, and even the danger of machine explosion will occur.
Therefore, in summary of the above experience, Shuguang Heavy Machinery recommends that customers use Raymond mill to produce ore powder, to ensure that the material humidity can not exceed 6%, some materials are inflammable and explosive can be relaxed to 10%, if more than this moisture, it is recommended to use a wet ball mill.
Factory Address: Longjiang West Road, Shangjie District, Zhengzhou City
Contact number: +86-371-67666660 676667
Mobile phone: 0086 13523465141
After-sales Service Department: 0371-67666667
Address：No. 19, Longjiang West Road, Shangjie District Zhengzhou City