RU1796556C - Loose material chute - Google Patents

Abstract

Purpose: for handling bulk materials. SUMMARY OF THE INVENTION: The descent comprises a body inclined horizontally 1 with outlet hatches overlapped by pivoting covers provided with each counterweight. 2 ill.

Description

The invention relates to devices for handling bulk materials and can be used in the mining and coal industries, as well as in the mining and processing industry of building materials.

A descent for bulk materials is known, comprising an inclined box, a drive drum and a cable block system for lowering and raising the inclined box.

A drawback of this descent is the low dust removal efficiency of the overload process due to the fact that the duct does not protect the falling material from the wind. In addition, the presence of a cable block system complicates the design and impedes the implementation of process automation.

The closest in technical essence and the achieved result is a descent containing a box-shaped body located in a vertical plane, having exhaust hatches along their entire height, covered by hinged pivots with hinges mounted on a wall in its upper part.

A disadvantage of the known descent is the low dust removal efficiency because the vertical casing inside which the bulk material falls does not reduce its speed, as a result

which causes intense dusting and dusting out together with the material. In addition, the absence of counterweights on each cover leads to their spontaneous opening and the emission of dust from the housing into the atmosphere.

An object of the invention is to reduce dust generation while lowering maintenance costs.

This goal is achieved by the fact that in the known device the casing is installed obliquely relative to the horizontal, its upper and side walls are solid, and each cover of the outlet hatch is equipped with a counterweight to press it against the casing in the case when there is no fixed layer of loose material in the box in the area of the corresponding hatch .

In FIG. 1 shows a descent for bulk materials; FIG. 2 is a section AA in FIG. 1.

The descent for bulk materials includes an angled box 1, the bottom 2 of which is made with outlet hatches 3, each of which is equipped with a cover 4 with a counterweight 5, pivotally mounted on the bottom 2 of the box 1 with the possibility of rotation and release of material 6.

Descent for bulk materials works as follows. Transported

(L

with

x

ate

Joint venture

the bulk material 6, for example, from the shuttle conveyor 7, is guided by the unloading device 8 into a box 1 pre-installed at an angle of repose to the bulk material 6, along which bottom 2 rolls down into the outlet zone. During the descent of bulk material 6, the discharge hatches 3 in the bottom 2 are closed by covers 4 whose tight contact is ensured by the action of counterweights 5. Depending on the mechanism used when loading bulk material from the warehouse, the lowermost hatch 3 may not be equipped with a cover 4, and stay open constantly. After filling the first layer of the stacks through the lower hatch 3, the bulk material B accumulates in the box to the level of the next hatch 3. Under the influence of the weight of the bulk material 6, the lid 4 opens and the process of loading the warehouse continues. The lid 4 adjoins the bulk material 6 during the release period under the action of the counterweight 5. In this case, the outflow rate of the material is reduced and dust is reduced. . In addition, the cover 4 protects the flow of the rash; bringing material 6 from exposure to wind. As the stack is being packed up, the cover 4 continues to open until the hatch 3 is completely filled and the angle of repose of the bulk material 6 is formed. When the cover 4 is fully opened, the counterweight 5 occupies its upper position. After reaching the maximum stack height, the shuttle conveyor 7 moves and the bulk material 6 is unloaded to the surface of the already formed cone. In this case, the drop height of the bulk material will be minimal, which is achieved by choosing the distance of the unloading device 8, for example, the unloading head of the shuttle conveyor 7, from the receiving mouth of the box 1. The inclined box 1 is set at an angle before unloading

natural slope of the bulk material 6 and is connected to the trestle with cable ropes 9, which ensures its stability during operation.

Cable rods 9 can be fixed

through blocks on vertical supports and work under the influence of counterweights.

When unloading bulk material 6 from a warehouse, for example a bucket excavator, into railway cars, the height of the stack

decreases, and the covers 4 of the outlet hatches 3 are freed from the bulk material 6 and are closed in the reverse order by the action of the counterweights 5. .

This design of the descent allows unloading of bulk material on an open area of the warehouse from any height, while excluding the effects of wind, and therefore, blowing dust from

flow does not occur. Along with the reduction of dust generation, the descent design is simplified, and its operation is fully automated, which reduces maintenance costs,

. . . .-....:. . .

Formula Inclusion for loose material, containing in the vertical plane of the box-shaped case, having rib hatches all over its height, covered by outward-turning covers, pivotally fixed to the wall in its upper part , and with the fact that, in order to reduce

it is dusty while reducing maintenance costs, the body is mounted obliquely horizontally, its upper and side walls are solid, and each lid is equipped with a counterweight to press it tightly against the body when there is no fixed layer of loose material in the box in the area of the corresponding hatch.