SU1407582A1 - Bar screen - Google Patents

Abstract

The invention relates to devices for sorting solid materials by size and mb. used in coal, coke and S.-H. productions. The purpose of the invention is to improve the quality of screening by providing the ability to adjust the particle size distribution of the undersize product. In case 1 with loading 2 and unloading 3 and 4 windows, the grate bars (K) 5 of curvilinear shape are installed with constant pitch. A shaft 7 is fixed to a row of plates 7 connected to each other by rods 8, while K 5 is mounted between the plates 7 with the possibility of interaction with the rods 8. A partition (P) 11 is mounted on the axis 10 on the lower part of the body 1. H 11 is made in the form of a comb. The ends of the teeth are placed in the gaps formed by the turning planes of the adjacent plates 7. The position lock d 11 is made in the form of a shoulder and a pin connected to the axis 10. When the source material is fed through window 2, small classes fall through the gaps between K 5 and plates 7 and exit through window 3. Large classes are transported by plates 7 over shaft 6 to window 4. The wedged pieces are removed using R 11 and sent to window 4 2 il. with (L

Description

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The invention relates to devices for cutting solid materials in large quantities, in particular to grates, and can be used in coal and chemical production for the separation of small and large classes of coal, as well as in agriculture.

I The purpose of the invention is to improve the quality of screening by providing the possibility of adjusting the particle size distribution of the undersize product.

FIG. 1 is a screen; in fig. 2 is a section A-A in FIG. one.

The screen includes a housing 1 with a boot

and discharge windows 3 and 4. In the case

Swinging grate 5 Cree linear shape. On the drive shaft 6

A set of plates 7 with rods 8,

Which are parallel between

oboy and shaft 6. The grate 5 is installed with

The pitch between plates 7 on

E | alu 9 with the ability to interact with

rods 8. At the bottom of the housing on

qcH 10 installed partition P.

The upper part of the partition 11 is made in the form of a comb, the ends of the teeth of which are located in the gaps formed by the plane - ivjH of rotation of the adjacent plates 7. On the outer part of the body there is a fixation of the position of the partition made in the form of firmly connected with the axis 10 shoulder 12 and schti

that 13.

The device works as follows) M

The plates 7, rotating from the drive, by the help of the rods 8, cause oscillatory movements of the grate 5. Moreover, if 1 even the grate lifts 35 tons, the screen is equipped with a partition, and the odd ones are lowered down. When applying the position of the transition material to the axle and retainer through the entrance window 2 of the partition, the partition is installed, the scattering surface of the small classes fall through the slots formed

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grate 5 and plates 7, and the output of the t through the lower output window 3. Large njiaccbi and part of the small layers from the top of the engine

Lena is in the lower part of the body, and its upper part is made in the form of a comb, the ends of the teeth of which are placed in the gaps formed by the planes of rotation of the adjacent plates.

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Compiled by B. Levchaev. Editor A. KozorizTehred I. Veres. Corrector I. Erdeyi.

Order 3242/9 Circulation 569 Subscription

VNIIPI USSR State Committee for Inventions and Discoveries

I 13035, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4

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sting along the grid bars to their free ends, where, due to the opposite direction of the grid bars oscillations, the material is loosened. Large classes are transported by plates over shaft 6 to exit window 4, smaller classes through slots formed by plates, depending on the location of partition 11, can be directed to exit window 3 or window 4. Jammed pieces close to the size of the slots between the grate bars relief partitions 11 are removed and guided to the outlet 4, which increases the screening efficiency.

To increase the content of small classes in the undersize product, the partition 11 must be turned to the left and, on the contrary, if necessary, to increase the size of the undersize product, the flap is turned to the right. Fixing the valve using the shoulder 12 and the pin 13 in several positions makes it possible to adjust the particle size distribution of the undersize product.

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Claims (1)

Invention Formula A grate screen, including a body with loading and unloading windows, plates fixed on the shaft and interconnected by rods, swinging grate curved, placed at constant pitch and installed with the possibility of interaction with the rods, characterized in that in order to improve the quality of screening by providing the possibility of adjusting the particle size distribution of the undersize product, the screener is provided with a partition mounted on the axis and anchor the position of the partition, while town installed Lena is in the lower part of the body, and its upper part is made in the form of a comb, the ends of the teeth of which are placed in the gaps formed by the planes of rotation of the adjacent plates.