SU1504187A2 - Arrangement for dust-free transfering of loose materials onto conveyer - Google Patents

Abstract

The invention relates to the transportation of bulk materials by conveyors and can be used in the construction industry, the mining industry, ferrous and nonferrous metallurgy, heat and power engineering, and other sectors of the national economy that use and process bulk materials. The purpose of the invention is to reduce energy consumption. During the reloading process, the quality of fractional flow separation does not decrease when the amount of overloaded bulk material is changed by using an additional set of longitudinal rails 11 installed under the main one and pushed forward along the material movement with the possibility of acting through the hinge on the main set of longitudinal rails. 2 Il.

Description

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This invention relates to overload.

bulk materials and can be used in the construction, mining, heat and other industries of the national economy.

The purpose of the invention is to reduce energy consumption.

FIG. 1 shows a device for dustlessly transferring bulk materials onto a conveyor; a general view of FIG. 2 is a section AA in FIG. one.

The device contains a chute 1 with an inclined bottom 2 and side walls 3. In zone 4, a protective cover 5 is installed, made with a confuser, passing into the suction pipe 6. The bottom 2 is made of two sections - section 7, made in the form of a trapezium tapering downwards and inclined to the horizontal plane at an angle equal to the angle of the external friction of the bulk material, and the section ci, made in the form of a trapezium extending downward, the upper part of which is equal in width to the smaller base of the trapezium of section 7, and the lower part less than the width of the side x walls 3, and tilted to a horizontal plane at an angle smaller than the bottom section 7 7. Section 8 consists of a set of longitudinal strips 9, with their upper part rigidly interconnected by an axis 10, which ends are pivotally connected to the side walls 3. The rails 9 with the lower part are supported by an additional set of longitudinal rails 11 located under the main one and pushed forward along the material movement. The longitudinal rails 11 are rigidly interconnected by an axis 12, which ends are hingedly connected to the side walls 3. When the minimum amount of bulk material is overloaded, the set of longitudinal rails 11 is located longitudinally to the main set of rails 9, and with an increase in the amount of overloaded bulk material the lower part of the set of longitudinal rails 11 rests on the limiter 13 of their movement, rigidly connected with the side walls 3. In the zone 14 of the loading of the groove 1 on the axis 15 attached to the side walls 3, the flap 16 is freely suspended. Under the groove 1 is installed flax conveyor 17 on KOTOpbiii supplied material.

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The device works in the following way.

A constant amount of material entering area 7 moves down along the bottom 2 of the groove with acceleration and carries (eject 1) with its particles from top to bottom a certain amount of air. Therefore, an area of reduced air pressure is formed in the upper part of the chute. As the material speed increases, its extinguishing capacity increases, but since the angle of inclination of the bottom of the chute in section 7 is equal to the angle of external friction of the material being loaded, the acceleration of the moving mass of the material is minimal, respectively, and the amount of air ejected by the particles is the smallest. The bottom shape is yellow.: In this area, it is narrowed downwards, which prevents an increase in the distance between rapidly moving particles and provides a material supporting layer with a cohesive layer and its smooth descent, excluding the additional mixing of the mass. The flap 16, freely suspended on the axis 15, serves to uniformly form the flux density of the perot of the material being fed along the chute 1. In section 8, the speed of movement of the material decreases, and flow separation occurs. The small and dust fractions are sifted onto the conveyor belt 17, and the larger ones, the minimum of which are transported through the slats over the small ones to the discharge opening, unloading from which cover the space above the slower fractions, contributing to the reduction of pie formation and significantly reducing dust from entering - tional C1 system.

When the amount of the overloaded bulk material increases, the optimum size of noToF is disturbed by the optimal magnitude: a into small and coarse fractions in section 8. Then, if the flow hits the lower row of longitudinal rails 11, where fractional separation also occurs, the bulk material (; part of the strips 11 pushed forward in the course of the movement of the material, which causes them to be lowered to about: the movement of them 13, with the upper part of the additional set

Claims (1)

Claim Device for dust-free loading of bulk materials onto a conveyor No. 1421657, distinguished by the fact that, in order to reduce energy consumption, it is equipped with an additional set of longitudinally fixed rails rigidly interconnected, pivotally fixed by means of the horizontal axis with an offset in the material supply direction under the main set of rails, and a limiter their movements, while the rails of the main set are pivotally mounted with the possibility of interaction with their front ends in the direction of material supply with the rear ends of the rails of the additional set. Aa