SU126736A1 - Combined mine hammer mill - Google Patents

Description

Dia. 1 of a thin dimension. 1 11 of the mineral raw material is used in combined mine hammer hammers. A disadvantage of such known mills is that they do not provide the possibility of grinding viscous materials and their classification in the mine of the mill.

In the proposed mill, the shaft is provided with a dividing partition, behind which an inclined screen with a funnel is installed to remove the undersize product from the mill that has passed through the partition under the action of the air flow and to prevent insufficiently crushed particles from being ejected from the mill.

The drawing shows the proposed mill in two projections.

The material to be crushed is supplied by the feeder / from the hopper 2 to the hammer mill 3 where it is crushed and the centrifugal force generated by the rotation of the rotor is thrown into the cavity 4 of the combined separator shaft. The larger the particles emitted into the mine, the more kinetic epergip it has. As the particles move upward, this energy is expended to overcome the resistance of the air medium, which depends on the mass of the particles. As a result, small particles spend their kinetic energy faster than large ones, and the hammers reverse. Most of the largest particles, dropped from the upper part of the mine, and those smallest particles, whose soar speed is less than the speed of the air flow moving upwards in part 4 of the mine, get into the iolost 5 of the shaft. On the way of the mixture of large and small particles in the cavity o, an inclined sieve 6 with large cells was installed. Particles larger than the sieves of the b screen are rolled into hammers, and the fine fraction is fed to the collector 7 and poured into for measuring the desired material

The mesh size of the sieve is much larger than the diameter of the particles to be scaled, as a result of which it is not smeared. The height of the partition 8 must be such that only particles with a size larger than the sieve cells can be transferred through it.

PRIOR DIRECTORSHIP and

A combined hammermill shaft for finely mined minerals is different in that, in order to allow grinding of viscous materials and their crushing in the mill shaft, the shaft is equipped with a dividing partition, behind which an inclined screen with a funnel is installed to output a mill pit of the undersize product carried by the air flow through the septum, as well as protection from ejection of the crushed parts from the mill