SU420337A1 - INSTALLATION FOR HIGH-PERFORMED CRUSHING MATERIAL - Google Patents

Description

one

Installations are known for high-disintegrating material grinding, containing 1, and a centrifugal two-rotor mill, hermetically connected by ducts with similar and cyclone exhaust nozzles, a hopper with a valve.

However, the known installations, having different schemes for transporting and unloading the final product, are equipped with various types of mechanical feeders, often with independent drive. The presence of a mechanical feeder complicates the design and increases the cost of manufacturing plants for small size. In addition, a self-contained feeder, independent of the capacity of the shredder, makes it difficult to control the plant's performance and the degree of grinding of the product. In order to create the desired mode of operation of the installation, taking into account its performance and, especially, the fineness of grind, it is necessary in each individual case to manually adjust the capacity of the feeder.

The purpose of the invention is to regulate the loading of the mill with raw material.

This is achieved by the fact that the loading hopper is installed on the air duct connecting the exhaust pipe of the cyclone with the central part of the cavity of the mill.

The drawing shows schematically the proposed Installation.

The installation contains a high-speed centrifugal two-rotor mill 1 in which the outer rotor 2 with blades 3 rotates towards the inner rotor 4 with blades 5. The exit funnel of the mill 6 is connected to the inlet 8 of the cyclone-separator 9. The exhaust port of the cyclone 10 is connected to the central part of the cavity of the mill duct

11 and a chute 12. A hopper 13 with a valve 14 is located directly on the air duct. The discharge port of the cyclone 15 is equipped with an automatic shutter 16 opening under the influence of the throat

containers 17, rising with the platform of the transport trolley 18.

The source material particles flow into the central part of the cavity of the centrifugal mill 1 on the blades 5 of the inner rotor 4, and under the action of centrifugal force, being thrown on the blades 3 of the outer rotor 2, are crushed. The crushed material passed through the blades of the outer rotor by the air flow formed by the blades through the outlet funnel 6 through the duct 7 is removed from the mill and through the inlet 8 enters the cyclone 9 where (The end product separates from the air flow. Purified air

notes through exhaust pipe 10, air