SU961756A1 - Apparatus for disintegrating - Google Patents

Description

one ,

The invention relates to a device for crushing materials and can be applied in the building, agricultural and other industries.

The closest technical solution to the present invention is a device for grinding, including, its cylindrical body, on the inner surface of which a deck is fixed, a rotor made in the form of parallel vertically disposed disks, between which there are plate-shaped struts 1.

The disadvantage of this crusher is low, the efficiency of the crushing process.

A grinding device that includes a cylindrical housing, on the inner surface of which a deck is fixed, a rotor made in the form of parallel vertically arranged disks between which plate-shaped beams are installed, is provided with an additional cylindrical deck located inside the rotor, with the beater mounted parallel to the axis of the rotor.

FIG. 1 shows a grinding device, general view; in fig. 2 shows section A-A in FIG. one.

The grinding device comprises a housing, on the inner surface of which the corrugated deck 1 is fixed, and the cover 2, which are bolted to the vertical wall 4 of the frame 5 by bolts 3.

An electric motor 6 is fastened on the opposite side of the wall 4, a disk 7 is mounted on a shaft, which is fixed by means of a key 8, a washer 9 and a bolt 10. At the periphery of the disk 7, perpendicular to its plane, the fingers And are fixed to the threaded ends of which are parallel the disk 7 fastens the ring 12 with the help of 15 nuts screwed onto the threaded ends of the fingers 11. Between the disk 7 and the ring 12, i have, in their nests, lamellar strips 13, located in one or two rows along the rotor radii for example, in a checkerboard pattern parallel to the axis of the disk 7.

Claims (1)

The disk 7, the ring 12, the fingers 11 and the lamellar blades 13. Form the rotor of the crusher. Lamellar strips with tangential circles of the rotor form an angle O-10 ° with the apex of the angle directed towards the rotation of the rotor, while the front working faces of the hits 13. have a smaller thickness than the opposite faces. An inner cylindrical grooved deck 14 is attached to the lid 2 in the center, the protrusions of which are directed to the periphery of the rotor. The crusher is loaded with the material to be crushed from the hopper 15 through the opening 16 in deck 1. The crushed product is removed through the opening 17 and the discharge nipple 18. The device works as follows. The motor informs the rotation of the rotor. The material from the hopper 15 through the opening 16 in deck 1 enters an annular closed space, bounded on all sides by decks 1 and 14, a disk 7 and a ring 12. The particles of incoming crushed material are immediately subjected to a blow from the lamellar blades 13 of the outer row and are divided into several There are mainly large particles, which, scattering from the blow, hit one towards the outside and the other towards the inside of the deck. Large particles and grains stopped in the depressions of the decks again hit 13 both the outer and the inner rows, while the destruction of the particles occurs both due to the deformation of the shear by shear and due to the impact of the particles by flying into the beams 13. Due to the fact that a sufficiently small gap can be established between the cutting edges of the punch 13 and the cutting edges of the projections of decks 1 and 14, therefore, a part of the grains protruding beyond the edges of the projections of the decks can be cut by moving past the pillars 13, thus the destruction of the grains and coarse particles are carried out by shearing, by hitting particles at an impact and by hitting particles at high speeds with decks (or against the surface of a smooth deck). The coarsening of coarse particles occurs all the way in the annular space between the two cylindrical decks from inlet 16 to outlet 17. The expanding punch 13 and fingers 11 create a rotating air flow that rotates the crushed product. After reaching the outlet 17, the crushed product through nozzle 18 is removed. The grinding size adjustment can be carried out, for example, by changing the number of hits on the rotor, changing the angular velocity of rotation of the rotor, changing the gap between the strikes and the projections of the decks. The arrangement of the plate beats parallel to the rotor axis provides the most efficient grinding of the grain material, since the blow of each bil on the particles of the material being crushed is applied immediately to the entire length of the crusher decks and this continues from the inlet to the discharge opening. In addition, almost all particles (grains) of the material being crushed are exposed to the primary, most efficient blow immediately upon entering from the loading window. In the chopper, most of the incoming grain material is not hit by hammers at the entrance, since the distance between the hammers is about 10 times greater than the thickness of the hammers, therefore the incoming grain passes freely between the hammers in the direction of the center of the rotor and engages in the annular movement of the air-product layer in which the hammers are hit at a much lower relative linear speed. The use of lamellar blades ensures long-term stability of the size and quality of grinding due to the fact that the gap between the working edges of the blades and the protrusions of the decks practically does not change with time, since only their width changes with wear. The combination of using fairly wide and thick beats and casting decks, for example, from bleached cast iron, ensures their long-term operation without replacement, which ensures the reliability and durability of the proposed device. The installation of an additional cylindrical ribbed or smooth deck inside the rotor, especially in combination with a second row of plate beats mounted on the rotor, reduces power consumption and improves the quality of the crushed product and increases the capacity of the grinding device. The arrangement of the plate beats at an angle to the tangential circumference of the rotor provides a reduction in energy intensity by reducing the friction of the product between the beater surface and the deck. A ball with thinner front facets provides less process energy and a more uniform ground product. In the manufacture of double-layered sheet blades, plate-type beats are self-sharpening and their long-term stable operation with low power consumption of the grinding process. Thus, the use of the proposed grinding device improves the efficiency of the material grinding process. Claiming apparatus, including a cylindrical body, on the inside