SU1291207A1 - Sieve crusher - Google Patents

Abstract

The invention relates to devices for crushing materials in the feed, mining, construction and other industries. The purpose of the invention is to reduce the laboriousness of adjusting the size of the crushing product and to increase the productivity of the crusher. The sieve crusher includes a housing 1 with corrugated armor plates 6, a sieve 5 with openings 7 arranged in a checkerboard pattern, a rotor 3 with hammers 14, a loading nozzle 17 and an unloading chamber with screws 4. The openings 7 sieves 5 are made in perpendicular axes rotor planes in the form of grooves of cylindrical shape, widened, outwards; the crusher is equipped with adjustable cylindrical disks 8 with conical ends mounted in the radial grooves of the housing 1 for rotation and movement along the radius of the rotor 3. Original material It is crushed by blows of hammers 14, touched on armor plates 6 and passes through the gaps between the side walls of the openings 7 of the sieve 5 with the end surfaces of the disks 8, which is facilitated by the rotation of the disks 8 towards the hammers 14. The size of the crushing product is adjusted by moving the disks 8 along the rotor radius 3. .P. f-ly, 5 ill. i (L I Si / h / / / H / / / / S & F V, V V V V V VUI со со s about Qi / 7

Description

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The invention relates to a device for grinding materials and can be used in animal feed, mining, construction and other industries.

The purpose of the invention is to reduce the labor intensity of adjusting the crushiness of the crushed product and increase productivity.

FIG. 1 shows a crusher, a cut; in fig. 2 is a section A-A in FIG. one; in fig. 3 - regulating disk at the maximum distance from the sieve; in fig. 4 is a section BB in FIG. 3; in fig. 5 is a diagram of the mutual arrangement of the sieve and the regulating disk in the radial section.

The crusher includes a housing 1 with a lid 2, connected along a horizontal diametral plane. The rotor 3 is located inside the housing 1 and in alignment with it, and the unloading augers 4 are located in the lower part. The housing 1 contains a sieve 5 and armored corrugated plates 6. A cylindrical regulating disk 8 is mounted under each hole 7 20 sieves 5 9 and 10. Each row of regulating discs 8 in the axial direction of the crusher has a common shaft 11, passed through the radial grooves 12 of the housing 1. The rotor 3 is equipped with brackets 13 on which hammers 14 are installed. The unloading screws 4 are delimited by inclined walls 15 and 16, mounted at an angle greater than m corner friction material. In the cover 2 of the crusher is installed the boot nozzle 17.

The conical ends 9 and 10 of the regulating discs 8 are made at an angle of 3 ... 5 ° to the lateral faces of the holes 7 of the sieve 5 for the best removal of the grinding product from the crusher.

Crusher works as follows. .

The source material is fed through the loading nozzle 17 into the crushing chamber, where it is partially destroyed by the primary impacts of the moving hammers 14 of the rotor 3 and is thrown by them onto the armored corrugated plates 6, further destroyed, reflected by the subsequent impacts of the hammers 14, which are carried into circular motion with repeated alternating collisions with hammers 14 and armored plates 6 before meeting with a sieve 5. At the same time, particles of the material crushed to the dimensions of the flow area of the slots between the conical ends 9 and 10 claims 8 and the side faces of the openings 7 sieve 5, ejected air

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When the crusher operates, the control discs 8 rotate towards the hammers 14, intensively cleaning the holes 7 of the sieve 5 from adhering particles. This ensures the stability of the predetermined grain size.

The grinding fineness is changed during the operation of the crusher by adjusting the flow area of the gaps between the conical ends 9 and 10 of the regulating disks 8 and the side edges of the holes 7 of the sieve 5 due to the radial movement of the regulating disks 8 mounted on the shafts 11 outside the grinding chamber. In this case, in order to obtain fine grinding or when grinding elastic materials, the control discs 8 approach the moving hammers 14, and for the production of coarse grinding - are removed.

The sieve crusher offered in comparison with the known crushers provides higher productivity in obtaining fine grinding due to the adopted shape of the sieve holes and their active cleaning by rotating, imis with regulating discs. In addition, the proposed crusher does not require interruptions in work to change the fineness of the material and replace the sieve with a different orifice cross section, which significantly reduces the complexity of its restructuring and eliminates the need for a whole set of sieves with openings of different cross sections.

Installing at least two screws in the unloading chamber reduces the height of this chamber while maintaining the angle of inclination of the chamber walls to the horizon, which exceeds the angle of friction of the crushing product about them.

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Claims (1)

Claims A sieve crusher comprising a body with corrugated armored plates, a sieve with holes arranged in a checkerboard pattern, a rotor with hammers, a loading nozzle and an unloading chamber, characterized in that, in order to reduce the laboriousness of adjusting the size of the grinding product and increasing productivity, the sieve holes are made in perpendicular rotor axes of the planes in the form of cylindrical recesses extending outwardly; the crusher is equipped with cylindrical regulating disks with conical torpotro m from the crushing chamber through the marks mounted in the holes of the sieve with internal slots in the unloading chamber, from co-rotation and movement The latter is outputted outwardly along the radius of the rotor. ki shnekov 4. Large particles of material2. Crusher according to claim 1, characterized in carried away on repeated circular motions that the unloading chamber is equipped with at least on regrinding a measure, with two screws. 0 five 0 five 0 When the crusher operates, the control discs 8 rotate towards the hammers 14, intensively cleaning the holes 7 of the sieve 5 from adhering particles. This ensures the stability of the predetermined grain size. The grinding fineness is changed during the operation of the crusher by adjusting the flow area of the gaps between the conical ends 9 and 10 of the regulating disks 8 and the side edges of the holes 7 of the sieve 5 due to the radial movement of the regulating disks 8 mounted on the shafts 11 outside the grinding chamber. In this case, in order to obtain fine grinding or when grinding elastic materials, the control discs 8 approach the moving hammers 14, and for the production of coarse grinding - are removed. The sieve crusher offered in comparison with the known crushers provides higher productivity in obtaining fine grinding due to the adopted shape of the sieve holes and their active cleaning by rotating, imis with regulating discs. In addition, the proposed crusher does not require interruptions in work to change the fineness of the material and replace the sieve with a different orifice cross section, which significantly reduces the complexity of its restructuring and eliminates the need for a whole set of sieves with openings of different cross sections. Installing at least two screws in the unloading chamber reduces the height of this chamber while maintaining the angle of inclination of the chamber walls to the horizon, which exceeds the angle of friction of the crushing product about them. 0 five one. Claims A sieve crusher comprising a body with corrugated armored plates, a sieve with holes arranged in a checkerboard pattern, a rotor with hammers, a loading nozzle and an unloading chamber, characterized in that, in order to reduce the laboriousness of adjusting the size of the grinding product and increasing productivity, the sieve holes are made in perpendicular rotor axes of the planes in the form of grooves of cylindrical shape extending outward; the crusher is equipped with cylindrical regulating discs with conical torus / 7 7/7 U 7 / 7U ////////// Л H-5 22 -b 2 . four FIG. five Editor N. Dumbass Order 67/9 Compiled by A. Rudenko Tehred I. Veres Corrector A. Ilyin Tirezh 573Subscribe VNIIPI USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4