SU1532084A1 - Screen - Google Patents

Abstract

The invention relates to the separation of bulk materials by size and can be used in the coal, mining, metallurgical and other industries. The goal is to increase the separation efficiency. The screen includes a casing (K) 1 installed in it one of the other grate (CR) 2, rack (C) 5, shock absorbers 7 and loading device 3. The distance between the grid bars CR 2 are the same and exceed the boundary size of separation, and the grate in the adjacent CR 2 are displaced relative to each other in a checkerboard pattern. Through the shock absorber 7 and C 5, made with the shock absorber 16, K 1 rests on the base 8. The angle of inclination K 1 varies depending on changes in humidity and the grain size distribution of the material. For this, the C 5 is connected to K 1 and the base 8 by means of hinges and is adjustable in length by means of a screw pair, a screw 14 and a nut 15, and K 1 is mounted on shock absorbers 7 through a hinge device 6. When the length C 5 is changed, K 1 is rotated relative to the base in a vertical plane. During the operation of the screen K 1 oscillates on the shock absorbers 7 and 16 under the action of the rock mass falling through CR 2. 4 hp f-ly, 3 ill.

Description

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base 8. The angle of inclination K 1 varies depending on changes in humidity and the particle size distribution of the material. 71l of this C 5 is connected to K 1 and the base 8 by means of hinges and made adjustable in length by means of a screw pair, screw 14 and nut 15, and K 1 is mounted on shock absorbers 7 through a hinge device 6. When the length C 5 changes, K 1 relative to the base in the vertical plane. During the operation of the screen K 1 oscillates on the shock absorbers 7 and 16 under the action of the rock mass falling through CR 2, 4 3.p. f-ly, 3 ill.

The invention relates to a device for the separation of bulk materials by size and can be used in the coal, mining, construction, metallurgical and other sectors of the national economy.

The purpose of the invention is to increase the efficiency of separation,

Fig, 1 shows the roar, a general view; FIG. 2 is a section A-A in FIG. FIG. 3 is a roar. Top view. The screen comprises a housing with grates 2 fixed inside it, a loading device 3 with a cargo flow adjuster 4, a rack 5 and a hinge device 6 fixed to the housing 1 and supported through shock absorbers 7 on the bottom of the screen 8, Under the screen are receivers of under-screen 9 and above-10 products. The grates 2 are located one below the other and are made with equal distances between the grate bars, exceeding the granite size of the material fractions to be divided. In the adjacent grates 2, the grate bars are displaced relative to each other in a checkerboard pattern.

The structure of the regulator 4 cargo includes counter-loads 11, axis 12, hinged in housing 1, and flap 13.

The rack 5 is pivotally connected to the housing 1 and the base 8 and is made adjustable in length by means of a screw pair, a screw 14 with a nut 15 and is equipped with a shock absorber 16. The wheel members can be installed fan-like (FIG. 3) - and are fixed pivotally to the body (not shown).

The roar works as follows.

Before starting, it is established depending on the moisture content of the rock mass and its particle size distribution.

5 tilt angle of the screen by

adjusting the length of the pillar 5 and the required raw material consumption by means of the regulator by changing the weight of the counterweights 11 or moving them along the levers of the flap 13,

During the operation, the flow of rock mass enters the inclined grate 2, Gusters and particles of various sizes at a time of 5 m two angular spots along the inclined surface will move along the trajectory I (see, FIG. 1) , middle part; s - by. trajectories P, small ones 0 along the trajectory O, and the smallest ones (screenings) - along the trajectory TU,

Thanks to shock absorbers 7 and 16, the case rumbles, when operating under load, caused by the mountain mass falling through the grate. Vibrations of grates together with housing 1, as well as their console fixing, facilitate self-cleaning of screening surfaces.

l and exaggerate e (}) separation efficiency. When the physicomechanical properties of the material being divided (size, moisture, etc.,) are changed during the operation, the angle of inclination of the housing 1 is adjusted to its optimum value from the point of view of the separation efficiency under other equal conditions .

Claims (3)

Invention Formula 1, Screen, including a housing, mounted on the base, grates, cantilever mounted one under the other inside the housing, with grate bars in adjacent grids, displaced one relative to the other in a checkerboard pattern, boot device and receivers of separated fractions of different sizes u, and fi so that, in order to increase the separation efficiency, it is equipped with a hinge device attached to the body and connected to the base by means of elastic supports, and adjustable in length with a shock absorber connected to the body and the base. 2, The screen according to claim 2, which is based on the fact that the grate bars in the grids are installed at the same distance from each other. 12 g / oooooooh) oh oh oh oh oh ooooooooo ooooooooo ooooooooo 320846 3. Screen POP.1, characterized in that the grate bars in the gratings are fan-shaped, with 4, the screen bells pop, characterized in that the grate bars in the grates are hingedly attached to the body, 5, Screen, pop, 1, distinguished by 10 u and with the fact that it is equipped with a cargo flow regulator installed inside the loading device, - t Phie.g  Y.H.