RU1787540C - Vibrating mill - Google Patents

Abstract

Usage: grinding, grinding of ores, substances in chemical, food and other industries. SUMMARY OF THE INVENTION: The grinding drum is provided with an external vibrator and elastic supports. Grinding tubes nested one into another are freely placed in the drum. Each tube is made with internal end flanges - limiters of the smaller tube embedded in it and external grooves of the right and left screw coils converging in the middle. 3 ill.

Description

The invention relates to the grinding of various materials, namely, vibration mills for grinding, fine grinding, disintegration of ores, rocks, substances in the chemical, processing, food and other industries ..-. : ::.

A known vibration mill comprising a grinding drum equipped with a vibrodrive and other elastic supports, freely placed therein and inserted into one another by perforated grinding tubes.,

A disadvantage of the known mill is its low grinding efficiency.

The purpose of the invention is to increase grinding efficiency.

The goal is achieved in that in a vibration mill containing a grinding drum equipped with a vibratory drive and elastic supports, freely placed in it and perforated grinding tubes nested one into the other, the latter are made with inner end bumpers, limiters of the inserted tube and external, converging grooves right and left screw winding. In FIG. 1 shows a structural diagram of a vibratory mill; in FIG. 2 is a view along arrow A in FIG. 1 (with cover removed): in FIG. 3 - node I in FIG. 1.

The vibration mill contains a grinding chamber 1, the ends of which are closed by covers 2. The covers are equipped with discharge chutes 3 with grids 4. On the right cover there is a loading device 5 for feeding the crushed material 6 into the inner half of the bale (s).

The grinding chamber 1 is equipped with a vibration exciter 7 and, with the help of elastic suspension pumps 8, is mounted on a fixed base. In the internal cavity of the grinding chamber, axially hollow cylinders 9, 10, and 11 with flanges 12 are installed, provided with perforated sections 13 and holes 14. The outer surfaces of the cylinders are provided with circling to the center

ate

with

x | with xi

ate

.N

about

screw grooves of the left and right direction 15.,

The mill operates as follows / -;: ;; .; ; :.,: -. -:.

 The vibration exciter 7 informs the grinding chamber mounted on a fixed base by means of elastic suspensions 8, oscillatory movements. Due to vibrotransportation, the cylinder 9 rolls around in 6: L1 of the inner cavity of the chamber 1 in the direction of the arrow on it. As a result, these cylinders are also connected to each other and the cylinders of 1phi TV. The material 6 is continuously fed by the loading device 5 into the inner barrel-shaped cavity of the cylinder 11. Through the holes, the material enters between the rolling cylinders 10 and 11, where it is crushed and transported by grooves 15 and to the ends of the cylinder 10, where it passes through the perforated sections 13 between the rolling cylinders 9

and y. :. -.

Grinding, the material is transported by grooves 15 to the center and through the perfo-:, -..-, -; ; - -. -

The corrugated sections 13 of the cylinder 9 enters between the rolling cylinder 9 and the grinding chamber 1. It is crushed, the material is transported by grooves 15 to the nets 4 and enters the receiving container via discharge chutes. By selecting the number of cylinders, their mass, and the amplitude of the oscillation, it is possible to widely control the grinding intensity and, consequently, the mill productivity.

Formula and Vibration mill, comprising a grinding drum equipped with a vibrator and elastic supports, freely placed in it and nested in one another by perforated grinding tubes, characterized in that, for the purpose of To increase the grinding efficiency, each grinding tube is made with internal end flanges-limiters of the inserted tube and external, converging in the middle grooves of the right and left screw windings. ; .

FIG. 1

Type A

Fig.Z