SU701704A1 - Apparatus for communition of material - Google Patents

Description

(54) DEVICE FOR CRUSHING LAATERIALS

I

The invention relates to a device for grinding materials and can be applied in the construction and other industries.

A pin shredder is known, comprising a cast iron housing, a rotating pin disk, a fixed pin disk with a nozzle to receive the product 1.

The closest technical solution to the invention is a device for grinding materials, comprising a housing, a pin-type rotor, the lower disk of which is fixed on the shaft and has the ability to lie, separator 2.

However, the known constructions are characterized by high metal consumption and low efficiency of the grinding process.

The purpose of the invention is to increase the efficiency of the separation process and reduce metal consumption.

The goal is achieved by the fact that a device for grinding materials, comprising a housing, a pin-type rotor, made in the form of upper and lower disks, the last of which is fixed

on the shaft and has the possibility of rotation, the separator is equipped with an additional shaft on which the upper disk is rotatably fixed, and the shaft of the lower disk is made hollow and inside the shaft of the upper disk is telescopically stirred, the separator being made in the form of a sieve and rigidly connected to the upper disk.

FIG. 1 shows the basic scheme of a device for grinding materials; on . 2 - a general view of the device;

The device consists of two halves, each of which includes a housing 1, a rotor 2, consisting of two disks 3 and 4, a cylindrical sieve 5, a feeding pipe 6 with a feed screw 7, a tray 8, an internal housing 9 and a drive 10. On each disk reinforced with two rows of pins 11 with armored sleeves. The lower disk is rigidly fixed on the shaft 1 to the shaft 12, and the upper disk - on the internal solid shaft 13. D, 1 finished product release holes 14 and 15 are provided.

The device works as follows.

Claims (2)

The product, falling into the area of grafts, is crushed and at the same time moves to the peripherypine of the grinding zone. Crushed to the required β-size by the action of centrifugal force and due to the dilution created by the fan, the product passes through the sieve hole and is taken out of the machine through the outlet 14, and the undersized product is taken out through the hole 15. The sieve is cleaned due to the overpressure zone where detached from the sieve by air flow. The use of a specific device for grinding the material increases the efficiency of the separation process and reduces the metal content. Claims An apparatus for grinding materials comprising a housing, a pin-type rotor. FIG. one (a) Top and bottom disks, the last of which is mounted on a shaft so as to rotate, a separator, characterized in that, in order to increase the efficiency of the separation process and reduce metal consumption, the device is provided with an additional shaft, on which the upper disk is rotatably fixed. the rotor, the shaft of the lower disk is made hollow and inside it the shaft of the upper disk is telescopically stirred, and the separator is made in the form of a sieve and is rigidly connected to the upper disk. Sources of information taken into account in the examination 1.Cetzinovsky V.M. Ptushkina G.N. Technological equipment of grain processing enterprises. M., “Kolos, 1976, p. 324-334. 2. USSR author's certificate number 160934, cl. B 02 C 13/26, 1963. ten .2