SU1514398A1 - Knife crusher - Google Patents

Description

The invention relates to a device for grinding materials and allows to intensify the process of crushing fibrous and elastic materials and to obtain a monodisperse finished product. Crusher

I

consists of a housing 1, a rotor 2 with movable knives 9, made in the form of disks, and on odd disks of knives twice less than on even ones, and knives are located on odd disks relative to each other in staggered order, loading estrus 3 and discharge window 4. On the front plates 5, 6 of the housing 1 are fixed knives 7,

8. In the upper part of the front plate 5 of the housing 1 at an angle of 20-30 ° to the horizontal axis of the rotor is a knife 14 for pre-processing of large raw materials. Directly behind the loading chute 3 there is a raw material pre-treatment chamber, consisting of a reflective ribbed plate 11 installed at an angle of 10 20 ° relative to the body in the direction of rotation of the rotor 2, and two guide plates 12, 13. 1 Il.

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1514398

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The invention relates to devices for

grinding and can be applied in

construction, agricultural and other

industries.

The purpose of the invention is the intensification of the process of crushing fibrous and elastic - ⁵ materials and obtaining a monodisperse finished product.

The drawing shows a knife crusher, a general view.

The knife crusher has a housing 1, a rotor 10 2. inclined ostrac 3 and an unloading window 4. On the front plates 5, 6 of the case fixed knives 7, 8 are mounted, on the rotor 2 there are movable knives 9, whose odds are odd, the disks are twice as small than on even disks, and knives 9 are located on odd disks relative to each other in a checkerboard pattern. Directly behind the loading chute 3 is a pre-treatment chamber 10, consisting of a reflective ribbed plate 11 displaced relative to the housing 1 in the direction of rotation of the rotor 2 at an angle of 10-20 °, which eliminates the material hanging or throwing out, and the guide plates 12 , 13, the angle between the reflective finned plate 11 and the upper guide plate 12 gives the proper effect at 95 - 115 °. If the angle is less than 95 ^e , then the raw material, being reflected, is thrown out or getting under the knives, goes through the same cycle, if the angle is greater than 1 15 ^e , then the raw material is filled in the upper corner between the top 12 and rear 13 guide plates, the same occurs if the angle is greater or less than 95 - 1 15 ° between the top 12 and the rear 13 guide plates. The upper part of the front plate 5 of the housing 1 is equipped with a foot 35, made along the entire length of the rotor 2 for the preliminary grinding of large raw materials, located at an angle of 20 -30 ° to the horizontal axis of the rotor 2.

The knife crusher works in the following 40 ways.

The feedstock is fed in obliquely arranged chute 3 and falls under the movable blades 9 of the rotating rotor 2. Having momentum with the pin movable cutters 9, raw material flies towards the reflecting plate ⁴⁵ tion ribbed II, where cracking of its sharp edges, falls on the guide plate 12, being reflected from it, falls on the guide plate 13, which directs the raw material to the final grinding zone. Large pieces of raw materials that are not processed in chamber 10, falling on a solid knife 14, are cut off by movable knives 9, and the remaining part of the grip 4

other movable knives 9, and the remaining part of the piece is captured by other movable knives 9, and the pieces of raw materials, hanging on fixed knives 7, 8, have the opportunity to reorient and fall into the action area of movable knives 9 of adjacent rows, as the quantitative ratio of movable knives 9 on odd disks it is twice less than on even disks, and movable knives 9 are located on odd disks relative to each other in a checkerboard pattern. All the raw material is fed to the fixed knives 7, 8. After passing through them, the product of a given fraction is obtained, unloaded through the unloading window 4.

The use of a raw material pre-treatment chamber and a knife for pre-grinding of large raw materials provides an increase in the intensification of the grinding process while reducing energy costs by 2 times, as well as increasing industrial sanitation and safety, as the crusher eliminates the release of raw materials to the outside, obtaining a monodisperse finished product. The performance of movable knives in quantitative ratio on the odd rotor disks is half as much as on even disks, and their location on odd disks relative to each other in a staggered manner prevents jamming of the crusher, which reduces downtime, reduces repair costs and improves the reliability of the crusher as a whole.

Claims (1)

Claim Knife crusher, comprising a housing with an obliquely located chute, inside which a rotor is installed on a horizontal shaft, made in the form of disks with knives interacting with fixed knives mounted on the housing, an unloading window, characterized by those. that, in order to intensify the process of crushing fibrous and elastic materials and obtaining a monodisperse finished product, the crusher is equipped with a raw material pretreatment chamber consisting of a reflective ribbed plate and two guide plates, one of which is associated with a chute, while the reflective ribbed plate of the chamber is installed an angle of 10–20 ° relative to the body in the direction of rotation of the rotor, and a knife is mounted at the top of the front plate of the body at an angle of 20–30 ° to the horizontal axis of the rotor, and the number knives on the odd disks of the rotor are half as many as on the even ones, and on the odd disks the knives are staggered relative to each other.