SU1521688A1 - Arrangement for transfering loose materials - Google Patents

Abstract

The invention relates to industrial transport and can be used for handling bulk material in various sectors of the national economy. The purpose of the invention is to reduce dust emission. The bulk material transfer device contains a 90 ° inclined chute 1 and cover 4 with an anti-ejection section 5. When overloaded, the bulk material completely covers the sections of the covering 4, acts as a flap, blocking the passage of dust air to the bottom section 7 and directing it to the suction nozzle 6. At the boundary of sections 5 and 7, a vacuum occurs, which ensures that air flows through section 7 and prevents dust from escaping from the shelter. 1 il.

Description

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The invention relates to industrial transport, namely, devices for handling bulk material, and can be used in the mining industry, construction, and other industries of the national economy.

The purpose of the invention is to reduce dust emission.

The drawing shows a device for handling bulk material, general, view.

The device for transshipping the bulk material contains an inclined chute 1 with a loading area 2 and a unloading area 3 communicated with shelter 4 with an anti-ejection section 5 and. suction pipe 6. The shelter is located at an angle of 90 ° to the inclined chute 1 and its lower section 7 goes to the conveyor 8.

A device for handling bulk solids operates as follows.

The bulk material enters the inclined chute 1 and, moving along its bottom, ejects a certain amount of dusty air to form a two-phase polydisperse flow, where the material moves along the bottom, and the dusty air over the material. Passing chute 1, the stream hits the bottom wall of the shelter 4 and again splits into two streams. The material moves along the lower section 7 to the conveyor 8, and the dusty air is thrown into the counter-emission section 5 and enters the aspiration pipe 6. At the same time, air is sucked from the working room through the lower section 7, due to which dusty air completely enters the aspiration pipe 6, and not knocked out of the shelter 4.

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In addition, when the material is transferred from the slope of the chute 1 to the shelter 4, the material completely covers its cross section, acts as a flap, blocking the passage of dusty air moving along the chute 1 above the material into the lower section 7 and directing it to the suction nozzle 6.

Since the counter-ejection section 5 and the lower section 7 are one unit, and the air flow across the cross section of the lower section 7 is many times smaller than the air flow across the section of section 5, a vacuum occurs at the boundary of these sections, which causes air to leak through section 7.

The location of the shelter 4 at an angle of 90 ° to the inclined chute 1 provides the maximum efficiency of dedusting overload sites due to the fact that the entire stream of dusty air enters the aspiration pipe 6.

Claims (1)

Invention Formula A device for reloading bulk materials, comprising a loading inclined chute with upper loading and lower discharge openings, communicated with an aspiration pipe through a shelter covering the vent in the area of its discharge opening, characterized in that in order to reduce dust discharging, the covering is made the form of a pipe located perpendicular to the loading chute with parallel upper and lower walls, communicated by its upper end with an aspiration pipe.