SCM Ultrafine Mill

SCM ultrafine mill is the foundation of our company on the milling technology where many years of production of industrial vertical ultra-fine grinding, using the principle of fluid mechanics, jet mill can be comparable with the ultrafine grinding of painstaking research, new design, which has successfully solved the difficult problem of the superfine powder jet mill is a kind of high cost, energy saving efficient ultrafine mill.

SCM Ultrafine Mill

High efficiency vertical ultrafine mill

Feed size: 15- 25mm

Processing capacity: 0.2-21t

Applicable materials: kaolin, limestone, calcite, talc, marble, barite, gypsum, iron oxide red, iron oxide green, aluminum hydroxide, pigment, bentonite, clay, coal, activated carbon, carbon black and so on.

Applications: metallurgy, building materials, chemical industry, mining, agriculture, chemical and other industries.

Working principle of ultrafine mill

When the superfine grinding works, the screw conveyor is used to feed the material to the center of the horizontal rotating disc, and the material is moved by the centrifugal force from the center to the periphery. A plurality of (2~4) rollers are installed on the raceway of the outer circumference of the grinding disc. The material is crushed between the roller and the raceway of the mill, and then crushed by extrusion and grinding, and then continues to move to the periphery. The air around the grinding plate is air jet, and the air (which is hot gas or kiln waste gas) enters the vertical superfine grinding chamber through the nozzle, and then it rises and rolls the crushed material to the top of the separator to carry out the powder selection. Coarse particles fall, mixed with new feed material, once again back to the grinding disc, to be crushed. The selected fine powder, fine powder, passes through the middle of the rotor of the separator, and is drawn out of the vertical superfine grinding mill. Inclusions such as sheet metal fall in the rising air and discharged through inclusion discharge.

Types of Ultrafine Mill Liner

The function and selection principle of lining board

In order to protect the ultrafine mill from the inner surface of the cylinder body and the abrasive grinding materials, ultrafine mill for the cylinder wall lining with a layer, and the effective control of the grinding body in the movement and distribution of cylinder body. The cylinder liner must wear suitable surface geometry; layout and simple connection mode, so as to shorten the liner removing and installing time, reduce the lining fracture plate bolt caused by slurry leakage and downtime, improve ultrafine mill operation rate; minimize liner types, for spare parts management, reduce operating costs.

Common types of cylinder liner

According to the liner surface shape, lining plate can be divided into smooth and non smooth two categories: uneven degree smaller called smooth lining, lining board for ball lifting smooth low blow force is small, but large slip grinding ball, strong effect, used for fine grinding; uneven degree called smooth lining, not smooth lining can improve the high ball hitting power, get larger, and have strong stirring and crushing effect of steel ball and materials used for coarse grinding. There are many types of non smooth liners, such as ribbed lining board, big wave lining board, stepped lining board, grading lining board and rudder lining board, etc..

Technical Data

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