SU1335326A1 - Screen - Google Patents

Abstract

The invention relates to the enrichment of minerals and makes it possible to increase the efficiency of screening at the expense of additional cleanup of the superlattice product. The upper and lower sieves (C) 2 are located in the casing. Between them are placed the upper and lower pallets (P) 3 i Above each C 2 and each P 3 there are scrubbers 6 for cleaning C 2 mounted on a vertical shaft. The upper C 2 is made with an opening, and the lower C 2 and P 3 - with the main and additional openings. .L JW Figure 1

Description

133 posted

The main opening of the upper P 3. Under the opening of the upper C 2, and its additional opening is displaced relative to the main one in the direction opposite to the rotation of the scrapers 6. The main opening of the lower C 2 is located under the additional opening of the upper P 3. The additional opening of the lower C 2 is displaced relative to the main opening. the direction opposite to the rotation of the scrapers 6. The openings of the lower P 3 are positioned with respect to the openings of the lower C 2, similar to the placement of the openings of the upper P 3 to the openings of the upper C 2, Upper C 2 has

The invention relates to the enrichment of minerals, namely the classification of granular materials, and can be used in the coal, mining, chemical, construction, metallurgical and other industrial sectors.

The aim of the invention is to increase the efficiency of screening due to the additional cleaning of the grated-product4

1 shows a screen, a general view in section; figure 2 - section aa in figure 1; on fig.Z - section BB in figure 1; figure 4 is a section bb In figure 1; on fig.Z - section GGD on fig.

The screen comprises a housing 1 with fixed canes 2 and pallets 3 fixed on it, a vertical shaft 4 on which the top discharge screen 5 and scrappers 6 are placed, as well as grooves 7, 8 and 9 for removing screening products and drive 10.

The tiers of sieves 2 and pallets 3 are fixed in case I rigidly in alternate order, starting from the top with the rus sieve 2.

The upper discharge screen 5 protects the screen 2 and the scrapers 6 from the destructive impact of large pieces of material, thereby ensuring the operational reliability of the screen.

The scrapers 6 are installed above each of the light-emitting screens 2 and pallets 3 and are used to transport material therethrough.

guide-pipe installed under the opening. The lower C-2 and P 3 are made with the main and additional connections. Additional pipes of the upper P 3 - and lower C 2 are installed under the additional openings. The main and additional pipes of the lower P 3 are installed under the main and additional openings. As C 2 progresses, the superlattice product undergoes intensive loosening, due to which a high intensity of classification is achieved. 5 il.

In each trough of sieves 2 and pallets 3, the main 11-14 and additional 15-17 openings are made for transferring separation products from an extra-distributed rusa to an inferior one. In decks sieve 2, the first in the direction of rotation of the scrapers 6 is the opening used for unloading the oversize product, and in decks of the pallets 3 for the sub-products.

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The main opening 12 of the upper pallet is placed under the opening 11 of the upper

g sieve, and the additional opening-15 of the same pallet is offset relative to the main opening 12 in the direction opposite to the rotation of the scrapers, with the main opening 13 of the lower sieve being placed under the additional opening 15 of the upper pallet, and the additional opening 16 of the same sieve offset from the main opening 13 in the opposite direction of the scrapers,

25, the openings 14 and 17 of the lower pallet are positioned relative to the openings 13 and 16 of the lower sieve in the same way as the openings of the upper pallet to the opening of the upper sieve.

In order to eliminate the spreading and mixing of the separation products between them, when transferring them from one Rus to another, the nozzles in the form of tapering horizons are made under these openings.

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Nok placed respectively under the main and additional openings

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basic 18 and, additional (not showing an).

The roar works as follows

The material is fed to the upper discharge sieve 5, which is preliminarily prepared by removing large pieces of the oversize product through the chute 7 from the process. Waking up through the upper discharge sieve 5, the rest of the material goes under the sieve of the sieve 2 and the scraper 6 is transported to opening 11, through which, mine opening 12 of the upper russa of pallet 3, enters downstream Russian sieve 2, the above-grate product of which is transported by scraper 6 to opening 16 and through opening 14 downstream under 3 and it zhelo- ba 8 is withdrawn from the process. Transported by scraper 6 in sieves 2, the material is classified into medium and small size class. Small

class, requested through sieve 2, pop-25 in the direction opposite to rotates on pallets 3 and scrapers 6 through openings 15 and 17 and chute 9 also is removed from the process.

As it repeatedly passes from rus to rus, the oversize sieve product undergoes intensive loosening, due to which high screening efficiency is achieved.

Claims (1)

Invention Formula Screen, including body, located in it top and completed with aperture and guide pipe about a bottom screen, an upper one, arranged with an opening and a guide pipe, and a bottom tray, mounted on a vertical shaft, scrubbers for cleaning sieves and a drive, characterized in that, in order to increase the efficiency of the screening process due to additional Q-cleaning the oversize product, the lower sieve and the upper pallet are COMPLETED with additional openings, the upper sieve with an opening and the lower pallet with the main and additional openings, while the main opening of the upper pallet is located under the opening of the upper sieve, and the additional opening of the same pallet is displaced relative to the main one in the direction opposite to the rotation of the scrapers. The main opening, the lower sieve is placed under the additional opening of the upper pallet, and the additional opening of the same sieve is offset relative to the main5 the openings of the lower pallet are positioned relative to the openings of the lower sieve in the same way as the openings of the upper pallet to the upper sieve openings, and the upper sieve is provided with a guide pipe installed under the aperture, the upper pallet and the lower sieve are provided with additional directional pipes installed under additional openings, and the lower pallet is equipped with the main additional connections installed under the main and additional openings, while the scrapers are placed above each sieve and each th tray. bb FagM Compiled by S, Shestakova Editor I. Nikolaichuk Tehred I. Popovich Proofreaders. King Order A001 / 10 Circulation 538 Subscription VNIIPI USSR State Committee for inventions and discoveries 133035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 FIG. five