SU1682592A1 - Suction covering for loading station of belt conveyor - Google Patents

Abstract

The invention relates to the mining industry. The goal is to increase the efficiency of the aspiration unit by preventing dust from escaping from the housing. The case located above the conveyor belt has an aspiration chamber connected to the loading chute, end walls and two aspiration channels (AK) 8. The latter have external and internal walls and an entrance in the lower part. Horizontal longitudinal plates 12 are connected by one side with the body along its length, and the other with the inner wall AA with

Description

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AK 8 along the length of the entire body. The width of each plate 12 is determined from the expression: b (0.05-0.1) B, where b is the width of the horizontal longitudinal plate, m; B is the width of the conveyor belt, m. When loading bulk material, dusty air is pushed from the body cavity into AK 8. Air from the production room also flows there. The invention relates to the mining industry and can be used to dedust the places where the belt conveyors are loaded.

The purpose of the invention is to increase the efficiency of the aspiration shelter by preventing dust from escaping from the housing.

Figure 1 shows the aspiration shelter, a longitudinal section; Fig 2 is the same, top view; on fig.Z - section aa in figure 2.

The aspiration shelter contains a housing 2 located above the conveyor belt 1, an aspiration chamber 3 connected to a loading chute 4 having a baffle plate 5. The aspiration chamber 3 has an aspiration pipe 6 and communicates with the end elastic walls 7 of the housing 2 and with the 2 along the side walls two aspiration channels 8, each of which has an outer 9 and an inner 10 wall and an inlet 11 at the bottom. The inner wall 10 of each aspiration channel 8 at the inlet 11 is connected to the housing 1 by means of horizontal longitudinal plates 12 along the entire length of the housing 1. In this case, the width of each horizontal longitudinal plate 12 is determined from the expression

B (0.05-0.1) B, where b is the width of the horizontal plate, m;

B - conveyor belt width, m.

In the lower part of the housing 2, guide rods 13 are installed, which exclude cuts of the conveyor belt 1.

Aspiration shelter works as follows.

The material being overloaded and the air ejected by this material flows through the loading chute 4. The cutter and the baffle plate 5 brake and material movement, thereby reducing the amount of air ejected through the loading chute 4 entering the body cavity

neither From AK 8, the dusty air enters the aspiration chamber and is removed to the aspiration system for cleaning. The presence of plates 12 having an optimum width creates aerodynamic drag. This reduces the amount of air entering from the housing into the AK 8 and then into the suction chamber. 3 or

2. Under the action of overpressure, the air that has entered through the loading chute 4 into the cavity of the housing 2 is pushed out through the leaks formed by the tape

1 conveyor and horizontal longitudinal plates 12, into the secretion channels 8, and from the latter into the aspiration chamber 3 and the aspiration nozzle 6 (into the aspiration system). Guides

rods 13 eliminate the cuts of the conveyor belt 1, improve the aerodynamic characteristics of the aspiration cover.

In the suction channels 8, air flows through the

leaks formed by the conveyor belt 1 and the horizontal longitudinal plates 12 and from the production room. The vacuum in the suction channels 8 increases when approaching

aspiration chamber 3, and it is adjacent to the fender plate 5; therefore, the vacuum is maximum near the place where the material falls. Excess air is knocked out of the cavity of the housing 2, since the presence of horizontal longitudinal plates 12 creates aerodynamic resistance to the passage of air from the cavity of the housing 2, there should not be a vacuum inside it. Nonetheless, all the air emitted from

the cavity of the housing 2 enters only the aspiration channels 8, and then into the aspiration system, which eliminates the emission of dust.

The invention reduces the amount of air entering from

cavities of the housing 2, as well as the total amount of exhaust air, to reduce the concentration of dust in it, completely localize dust emissions, reduce operating costs,

Claims (1)

Claims Aspiration Shelter of a Belt Conveyor Loading Site, Including a Corus Placed Above the Conveyor Belt, an Aspiration Chamber Connected to a Loading Chute Having a Damper Plate and End Faces of the Case and Connected to the Aspiration Channels Along the Side Walls of the Case and Having External and Internal Walls and Inlet in the lower part, characterized in that, in order to increase the efficiency of the aspiration shelter by preventing dust from escaping from the housing, it is equipped with two Horizontal longitudinal plates, one side Editor I.Gorn FIG. Z Compiled by A.Gubaylovsky Tehred M.MorgentalKorrektor E.Lonchakova 0 each of which is connected to the housing and the other to the inner wall of the aspiration channel at its entrance, the width of each horizontal plate being determined from the mathematical expression B (0.05-0.1) B, where L is the width of a horizontal longitudinal plate, m; B - conveyor belt width, m. figure 1