SU1507442A1 - Grain crusher - Google Patents

Abstract

The invention relates to a device for crushing grain and other bulk materials and can be used in agriculture, as well as in animal feed and other industries. The purpose of the invention is to reduce energy consumption by improving the conditions of impact impact of the crusher working bodies on the source material. The source material from the hopper 6, through the loading box 3, flows by gravity into the grinding chamber 1, where it is crushed by being hit by the working parts of the rotor 2. By the working bodies of the rotor 2, the material is driven in a circular motion and, additionally crushed, directed to the unloading window 4, through which the pipeline 7 is fed into the separating chamber 8. In the latter, the crushed material is divided into two types of fractions under the influence of the air flow. The undersized fraction through the return channel 9 is sent for re-grinding into the grinding chamber 1, and the smaller one through the discharge channel 10 is diverted outside the crusher. 1 hp f-ly, 1 ill.

Description

3-15

The invention relates to devices for crushing grain and other bulk materials and can be used in agriculture, as well as in feed and other industrial sectors.

The purpose of the invention is to reduce energy consumption by improving the conditions for the impact of working bodies on the source material.

The drawing schematically shows a grain crusher, a general view.

Grain crusher contains a camera 1

Running the loading window in front of the return window and after the unloading window along the rotor rotation provides the best conditions for the impact of the working bodies of the rotor on the source material (grain), since in the absence of an underdressed crushed fraction all the impact energy is expended on crushing the source material.

Moving around the periphery of the grinding chamber, the undersized fraction of the material does not require large percussions.

grinding with a rotoz of impacts placed in it, as it is the most

Slide 2 and windows in the upper part of its wall: load 3, unload 4, and return 5 undersize grain, bunker 6 communicated with loading window 3, and pipe 7 connected to unload window 8, discharge chamber 8 with return channel 9 and discharge channel 10, with return channel 9 communicating with return window 5. The loading window 3 is made in the wall-25 ke of the grinding chamber 1 in front of the return window 5 and after the unloading window 4 in the direction of rotation of the rotor 2.

The bunker 6 in the crusher can be installed between the pipeline 7 and the plenum chamber 8.

Crusher grain works as follows.

The source material from the bunker 6 through the loading box 3 flows by gravity into the grinding chamber 1, where,;:. subjected to impacts of the working bodies of the rotor 2, is crushed. By the working bodies of the rotor 2, the material is driven in a circular motion and, additionally crushed, directed to the unloading window 4, through which the pipeline 7 is fed to the separation chamber 8. In the latter, under the influence of

It is effectively crushed under the action of abrasive loads that occur between the working bodies of the rotor and the surface of the grinding chamber.

The bunker can be installed between the pipeline and the separation chamber, which will allow the use of the free space between them and the grinding chamber and reduce the size of the crusher.

Claims (2)

1. A grain crusher containing a crushing measure with a rotor placed in it and loading, unloading and return windows of undersized grain placed in the upper part of its wall, a bunker connected to the loading window, and a separation chamber with a unloading window return and discharge channels, the first of which is in communication with the return window, which is characterized in that, in order to reduce energy consumption by improving the impact conditions of the crusher working bodies on the source material, the loading window is made about in the wall of the chamber 40 air flow crushed mat-. shredding in front of the return window and The rial is divided into two types of fractions, the undersized fraction through the return channel 9 is sent for re-grinding into the grinding chamber 1, and the smaller one through the discharge channel 10 is diverted outside the crusher. 50 after the discharge window during the rotation of the rotor. 2. The crusher according to claim 1, about tl and is often so that the bunker is installed between the pipe mill and the separation chamber. after the discharge window during the rotation of the rotor. 2. The crusher according to claim 1, about tl and is often so that the bunker is installed between the pipehoprol and the separation chamber.