SU908390A1 - Apparatus for treating materials - Google Patents

Description

(54) DEVICE FOR PROCESSING MATERIALS

one

The invention relates to a device for crushing, grinding and sifting powdered materials and is intended primarily for use in powder metallurgy.

A device for processing materials, such as grinding, contains a chamber located inside an electromic, auxiliary winding and filled with ferromagnetic working bodies 1.

The disadvantage of the device is the relatively low efficiency of the processing of the material in the chamber.

Closest to the proposed technical essence is a device for processing materials, comprising a housing, a grinding chamber with shields and an electromagnetic system 2.

The disadvantage of this device is the low quality of the finished product.

The purpose of the invention is to improve the quality of the finished product.

This goal is achieved by the fact that in a material processing device, including a housing, a grinding chamber with gaps and an electromagnetic system, in the lower part of the grinding chamber an additional chamber is mounted, made of two cascade sieves, between which balls are placed, and the distance between Sith less than two diameters shchara.

The drawing shows a device for processing materials.

The device includes a housing 1, a grinding chamber 2 with a cover 3, an electromagnetic coil 4, creating an alternating magnetic field, a screening chamber 5, a sieve 6, a stand 7 for a sieve 6, a sieve 8, a cone 9, grinding ferromagnetic balls 10 loaded into chambers 2 shredding and chamber 5. Stand 7 for sieve 6 serves for

15 holding sieves 6 and sieves 8 at a certain height.

The device works as follows.

Material is loaded into the grinding chamber 2, an electromagnetic coil 4 is connected to the AC network. grinding ferromagnetic balls 10 come into heavy traffic, forming the so-called “fluidized bed” due to mutual collisions. The crushed material passes through the sieve 6, enters the screening chamber 5, in which it either sifts through the sieve 8, or by the action of ferromagnetic balls 1.0, which are in the screen 5 of the screening. neither returns to grinding chamber 2, where it is ground again. The sieve 6 serves to protect the sieve 8 from the impacts of the grinding bodies 10 located in the grinding chamber 2 and to increase its durability. The action of the grinding bodies 10, which are located in the screening chamber 5, is insignificant on the sieve, since they only move in a horizontal plane. Their movement in the vertical plane is limited by the distance between the sieve 6 and the sieve 8, which is 1-2 mm larger than the diameter of the balls. The screened material, having passed through the cone 9, is unloaded.

The use of the present invention allows reducing the number of technological operations, reducing energy costs, freeing up useful JJLJOs, obtaining material of a specific particle size distribution, dramatically reducing the efficiency of the production process and the quality of the finished product.

Claims (2)

Invention Formula A device for processing materials, including a housing, a grinding chamber with balls and an electromagnetic system, characterized in that, in order to improve the quality of the finished product, in the lower part of the grinding chamber an additional chamber is mounted, made of two cascade sieves, between which are placed balls the distance between the screens is less than two times the diameter of the bows. Sources of information taken into account during the examination 1. USSR author's certificate No. 480447, cl. B 02 C 19/18, 1973. 2. USSR author's certificate No. 638370, cl. B 02 C 19/18, 1977 (prototype).