A coal protection device for a water belt type conveyor

Abstract

The utility model relates to a belt conveyor coal stacking protection structure, concretely relates to a kind of anti-spray water belt conveyor coal stacking protection device;Including three hoppers from top to bottom sequentially installed in the outside of coal stacking protection line and equally spaced distribution, respectively first hopper, second hopper and third hopper, the inside top of three hoppers and the outside of coal stacking protection line are filled with epoxy resin sealing layer respectively;The utility model anti-spray water belt conveyor coal stacking protection device, form the conductive "vacuum type" block between first hopper and second hopper and third hopper and second hopper gap, the conduction of protection core wire and ground is blocked, form the space gap form that water mist cannot be damped between hopper, to effectively avoid coal stacking protection misoperation.

Description

Technical Field

[0001] This utility model relates to a coal stacking protection structure for belt conveyors, specifically to a coal stacking protection device for a belt conveyor that prevents water spray. Background Technology

[0002] Coal pile protection is one of the most important safety features of belt conveyors. The protection lead is suspended above the coal drop point at the conveyor head. Once a coal pile accident occurs at the conveyor head, the protection action is triggered to stop the machine, effectively preventing the risk of large amounts of coal piling up at the conveyor head, affecting ventilation sections, pedestrians, and even threatening the lives of the driver.

[0003] A dust suppression spray device is usually installed above the coal drop point at the head of the belt conveyor. In order to prevent the spray from wetting the coal pile protection core wire, a waterproof funnel is installed on the core wire, which effectively prevents water mist from wetting the protection core wire.

[0004] Some belt conveyor unloading points are located at the top of the coal bunker. The return airflow of the coal bunker fan blows from bottom to top through the coal drop outlet of the coal bunker, causing coal sludge and water droplets to stick to both the inside and outside of the waterproof funnel. This will still wet the coal stack protection core wire, causing the belt conveyor to stop erroneously or the protection to fail to be deactivated due to reduced insulation caused by water ingress, thus prolonging the shutdown accident. Summary of the Invention

[0005] This invention addresses the problem that existing waterproof devices for coal pile protection leads cannot prevent water mist from wetting the coal pile protection core wire from bottom to top, leading to malfunctions and shutdowns. It provides a spray-proof water belt conveyor coal pile protection device.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a coal pile protection device for a spray-proof water belt conveyor, comprising three funnels installed sequentially from top to bottom on the outside of the coal pile protection line and distributed at equal intervals, namely the first funnel, the second funnel and the third funnel, and an epoxy resin sealing layer is filled between the top of the inner side of each of the three funnels and the outer side of the coal pile protection line.

[0007] Furthermore, the upper opening of the second funnel is located at two-thirds of the distance from top to bottom along the central axis inside the first funnel, and the upper opening of the third funnel is located at two-thirds of the distance from top to bottom along the central axis inside the second funnel.

[0008] Furthermore, the cone angles of the three funnels are the same, ranging from 30° to 75°.

[0009] Compared with the prior art, the present invention has the following beneficial effects: This utility model relates to a coal pile protection device for a water-spray-resistant belt conveyor. It creates a conductive "vacuum" barrier between the first and second funnels, and between the third and second funnels, effectively blocking the connection between the protective core wire and the ground. The funnels form a spatial gap that prevents water mist from wetting the coal pile protection system, thus effectively preventing malfunctions. This utility model has a simple structure, low modification cost, and is easy to promote. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the anti-spray water belt conveyor coal stack protection device of this utility model.

[0011] Figure 2 This is a schematic diagram illustrating the conductive "vacuum" blocking mechanism of the anti-spray water belt conveyor coal pile protection device of this utility model.

[0012] The markings in the image are as follows: 1-Coal pile protection line, 2-Epoxy resin sealing layer, 3-First funnel, 4-Second funnel, 5-Third funnel, 6-Protective wire core, 7-Water mist conductive layer, 8-Water mist conductive vacuum zone. Detailed Implementation

[0013] The present invention will be further described below with reference to specific embodiments. Example 1

[0014] like Figure 1 As shown, a coal pile protection device for a spray-proof water belt conveyor includes three funnels installed sequentially from top to bottom on the outside of the coal pile protection line 1 and distributed at equal intervals, namely the first funnel 3, the second funnel 4 and the third funnel 5. The top of the inner side of each of the three funnels is filled with an epoxy resin sealing layer 2 between it and the outside of the coal pile protection line 1. The epoxy resin sealing layer 2 is sealed by epoxy resin pouring.

[0015] Furthermore, the upper opening of the second funnel 4 is located at two-thirds of the distance from top to bottom along the central axis inside the first funnel 3, and the upper opening of the third funnel 5 is located at two-thirds of the distance from top to bottom along the central axis inside the second funnel 4.

[0016] Furthermore, the cone angles of the three funnels are the same, ranging from 30° to 75°.

[0017] Working process and principle: such as Figure 2As shown, water mist is blown onto the coal pile protection device from bottom to top, from top to bottom, or horizontally from left to right. A water mist conductive layer 7 is formed only above the upper surface of the first funnel 3, below the lower surface of the third funnel 5, and on the exposed part of the second funnel 2. A water mist conductive vacuum zone 8 is formed between the first funnel, the second funnel, the third funnel 5, and the second funnel 4, achieving conductive "vacuum" blocking. This blocks the conduction between the protective core wire 6 and the ground, thereby effectively preventing the coal pile protection device from malfunctioning.

Claims

1. A protective device for coal piles on a water-spray-resistant belt conveyor, characterized in that, It includes three funnels installed from top to bottom on the outside of the coal pile protection line (1) and distributed at equal intervals, namely the first funnel (3), the second funnel (4) and the third funnel (5). The top of the inner side of each of the three funnels is filled with an epoxy resin sealing layer (2) between it and the outside of the coal pile protection line (1).

2. The anti-spray water belt conveyor coal pile protection device according to claim 1, characterized in that, The upper opening of the second funnel (4) is located at two-thirds of the position from top to bottom of the central axis inside the first funnel (3), and the upper opening of the third funnel (5) is located at two-thirds of the position from top to bottom of the central axis inside the second funnel (4).

3. The anti-spray water belt conveyor coal pile protection device according to claim 1, characterized in that, The cone angles of the three funnels are the same, ranging from 30° to 75°.

Images