SU131605A1 - Shtyreva mill - Google Patents

Description

Known pin mills for grinding different materials, in which the finished product is removed by the impeller, do not ensure complete grinding of the material and separation of particles according to their specific weight.

In the described pin mill, these disadvantages are eliminated by the fact that an additional impeller is mounted on its working shaft, located under the loading opening,

The drawing schematically shows a general view of a pin mill.

The mill consists of the housing /, shaft 2 from the bottom 3 and top 4 impellers, movable discs with pins 5, fixed discs with pins 6, rating disc 7, nozzle 8, return pipe 9 with throttle 10, screw feeder // s the bunkers 12 and the drive 13. The shaft 2 is driven from the electric motor 14 through the V-belt transmission 15.

During the operation of the mill, an additional flap 3, located under the loading opening 16, provides for the sequential movement of the processed material through all grinding working bodies (pins 5j 6) and its air fractionation.

Subject matter

A pin mill with a stationary cylindrical body, is made with an upper discharge and lower feed openings, a fractionating ring partition and a working shaft vertically mounted in the cylinder cavity on which the floors are mounted; a series of disks with vertical pins concentrically arranged on them, interacting with the same pins, respectively located on fixed ring shelves, and also an impeller for removing the finished product, located on the shaft at the level of the discharge opening, above the fractionation ring partition separating the pitch the camera, it’s about that, t the purpose of ensuring the sequential movement of the processed material through all grinding working bodies and the formation of an air fraction An additional impeller is mounted on its working shaft, located under the feed opening.

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