SU1348450A1 - Runners for milling porous materials - Google Patents

Abstract

The invention relates to crushing, in particular, to the design of runners for crushing agloporite spec. The invention makes it possible to reduce the extrusion of the fine fraction (0-5 mm) of the material to be crushed and to increase the service life of the working bodies. Be- and Guna contain rollers 1, on which removable bandages 2 are mounted, fixed on spikes 3. section has the shape of a convex sphere. The rollers 1 roll over the bottom of the bowl. A, which consists of a base 5 and an annular lattice track 6 with holes 1. The surface of the track 6, which is in contact with the tires 2, is made concave in the shape of the working surfaces of the rollers of the rollers. 2 Il. sl from 4 00 4 cl

Description

The invention relates to the building materials industry and can be used primarily in the crushing of agloporite cake.

The aim of the invention is to reduce the yield of fines 0-5 mm and increase the service life of the working bodies of the runners.

Fig, 1 shows the proposed runners, a general view; figure 2 - node I in figure 1.

Runners contain rollers 1, on which removable bandages 2 are mounted. Mounting bands 2 to rollers 1 can be carried out using, for example, studs 3. The working surface of bands 2 in cross section has the shape of a convex sphere. The roller 1 rolls along the bottom of the bowl A, which consists of a base 5 and an annular trellised track 6 with holes 7. The working surface of the track 6, which is in contact through the material to be crushed 8 with the bandages 2, is made concave. The holes 7 in the grille track 6 have a diameter of 19-20 mm, which limits the upper limit of the size (20 mm) of the material obtained. The rollers 1 are pivotally connected to the carrier 9 of the central shaft 10. Runners work as follows: A central shaft 10, actuated by a drive (not shown), transmits rotational movement through the carrier 9 to rollers 1, as a result of which rollers 1 roll over material 8, located on the trellis track 6. The material to be crushed is continuously supplied to the surface of the trellis track 6 simultaneously for each roller 1. The initial diameter of the pieces of material is no more than 200 mm. When driving rollers 1 with bandages

. ten

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through material 8, the latter is crushed and, rolling down the concave surface of the grating track 6, passes through the openings 7 to an uncontrolledly moving conveyor (not shown).

The application of the proposed runners allows eliminating material over-grinding a (due to the curvature of the lattice, the crushed pieces of the required dimensions immediately fall into the holes 7, the cabttiM ensures a 25% reduction in the yield of the 0-5 mm fraction).

In addition, by reducing the contact time of the working surfaces with the abrasive crushable material, the life of the runners is increased.

When the angle d is less than 32, the crushed material accumulates and over-grinds on the surface of the grid, since this angle is less than the angle of repose of the material; Increasing the angle above 35 ° is impractical, since in this case the strength of the grid in the lower section is significantly reduced, therefore the angle c must be equal to 32-35.

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formula of invention

Begums for crushing porous materials, mainly agloporite cake containing rollers located on the circular lattice track of the bowl bottom, and Drive, about the fact that, in order to reduce the yield of 0-5 mm friction faction and increase the service life runners, ring lattice track of the bottom of the bowl is concave, and the working surface of the rollers. - convex in form of the circular lattice track of the bowl bottom.

Editor L. Veselovska

Compiled by L. Chubukova

Tehred L. Serdyukova Proofreader M. Pojo

5171/29

Circulation 373 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

(put. 2

Claims (1)

Claim Runners for crushing porous materials, mainly agloporite cake, containing rollers located on the annular lattice path of the bottom of the bowl, and 'Drive, characterized in that, in order to reduce the yield of 0-5 mm porous material and increase the service life of runners, ring the lattice the path of the bottom of the bowl is concave, and the working surface of the rollers. - convex in shape of the annular lattice path of the bottom of the bowl. Compiled by L. Chubukova Editor L. Veselovskaya Tehred L. Serdyukova Proofreader M. Pozho Order 5171/29 Circulation 573 Subscription VNIIIPI of the USSR State Committee for Invention and Discovery 113035, Moscow, Zh-35, Raushskaya nab., Production and printing company, Uzhgorod, Project 4,