Mining pneumatic control type spraying dust-settling device used in cooperation with conveying belt

Abstract

The utility model relates to the technical field of spraying and dust falling, in particular to a mining pneumatic control type spraying and dust falling device matched with a conveying belt for use, which comprises a water path provided with a nozzle and a pneumatic control component for controlling the on-off of the water path, the pneumatic control assembly comprises a pneumatic ball valve arranged on the water path, a connecting rod arranged above a conveying belt used for conveying a coal mine, a first stroke valve arranged on the side portion of the connecting rod, a gas path communicated with the first stroke valve and a control valve set arranged on the gas path and used for controlling the pneumatic ball valve to be opened and closed. The device has the advantages that whether coal mines are conveyed on the conveying belt or not is judged through the connecting rod, so that the pneumatic ball valve is controlled to be opened and closed through the first stroke valve and the control valve set, and the purpose of automatically opening and closing spraying and dust falling control according to whether the conveying belt conveys the coal mines or not can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray dust suppression, in particular to a mining air-controlled spray dust suppression device used in conjunction with a conveyor belt. Background Art

[0002] During coal mining and transportation, conveyor belts are a common method of transporting coal. However, as coal falls from the conveyor belt, collisions and friction generate large amounts of dust. This dust not only poses a serious health threat to coal miners, increasing the risk of occupational diseases such as coal lung disease, but also affects the proper operation of coal mining equipment, reducing production efficiency and potentially even causing accidents. Therefore, dust control is an essential component of coal mining operations.

[0003] Spray dust suppression devices are an effective dust control method, combining water mist with dust particles in the air, causing them to settle and achieve dust reduction. However, current spray dust suppression devices on the market have significant deficiencies in automated control. Specifically, these devices struggle to automatically control the opening and closing of conveyor belts depending on whether they are transporting coal.

[0004] When the conveyor belt is transporting coal, a large amount of dust is generated. At this time, the spray dust suppression device should be activated promptly to effectively suppress dust spread. However, existing spray dust suppression devices often fail to respond in a timely manner, resulting in poor dust control effectiveness. On the other hand, when the conveyor belt is not transporting coal, the spray dust suppression device should automatically shut down to avoid unnecessary water waste. However, existing devices have difficulty achieving this function, often resulting in water waste and untimely dust treatment.

[0005] Therefore, there is a need for a mining air-controlled spray dust suppression device used in conjunction with a conveyor belt to overcome the above-mentioned problems. Utility Model Content

[0006] In order to solve the above problems, an embodiment of the present utility model provides a mining air-controlled spray dust suppression device used in conjunction with a conveyor belt, which achieves the purpose of solving the problems raised in the background technology.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the present utility model specifically adopts the following technical solutions: a mining air-controlled spray dust suppression device used in conjunction with a conveyor belt, comprising a water channel provided with a nozzle and an air control component for controlling the on-off of the water channel;

[0008] The air control component includes a pneumatic ball valve arranged on the water path, a connecting rod arranged above the conveyor belt for transporting coal, a stroke valve 1 arranged on the side of the connecting rod, an air path connected to the stroke valve 1, and a control valve group arranged on the air path for controlling the opening and closing of the pneumatic ball valve.

[0009] As a further improvement of the above technical solution:

[0010] The control valve group includes a three-position five-way control valve arranged on the air circuit, a two-position three-way delayed reversing valve arranged on the air circuit, a second stroke valve arranged on the air circuit, and a cylinder connected to the two-position three-way delayed reversing valve for use in conjunction with the second stroke valve.

[0011] The air inlet end of the three-position five-way control valve is connected to the air circuit, the reversing control end 1 of the three-position five-way control valve is connected to the stroke valve 1, the reversing control end 2 of the three-position five-way control valve is connected to the stroke valve 2, the air outlet end 1 of the three-position five-way control valve is connected to the opening control end of the pneumatic ball valve, and the air outlet end 2 of the three-position five-way control valve is connected to the closing control end of the pneumatic ball valve;

[0012] The reversing control end of the two-position three-way time-delay reversing valve is connected to the travel valve.

[0013] The bottom height of the connecting rod is higher than the top height of the belt body of the conveyor belt.

[0014] The beneficial effects of the embodiments of the present utility model are:

[0015] In actual use, when coal is transported on the conveyor belt, the coal blocks hit the connecting rod, causing the connecting rod to tilt, thereby causing the connecting rod to squeeze the stroke valve one, so that the stroke valve one is ventilated and the pneumatic ball valve is controlled to open by the control valve group, so that water mist can be sprayed out from the nozzle; when there is no coal on the conveyor belt, the connecting rod remains in a vertical state under the action of gravity, so that the connecting rod does not squeeze the stroke valve one, and the control valve group can control the pneumatic ball valve to close, that is, to shut down the water mist dust reduction operation; that is, the connecting rod is used to determine whether coal is transported on the conveyor belt, and the stroke valve one and the control valve group are used to control the opening and closing of the pneumatic ball valve, so as to achieve the purpose of automatic opening and closing of spray dust reduction control according to whether the conveyor belt is transporting coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] In the figure: 1. Water channel; 2. Nozzle; 3. Air control component;

[0018] 31. Pneumatic ball valve; 32. Connecting rod; 33. Stroke valve 1; 34. Air circuit; 35. Control valve group;

[0019] 351. Three-position, five-way control valve; 352. Two-position, three-way delayed reversing valve; 353. Two-stroke valve; 354. Cylinder. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] See also Figure 1 The embodiment of the utility model discloses a mining air-controlled spray dust suppression device used in conjunction with a conveyor belt, comprising a water channel 1 provided with a nozzle 2, and an air control component 3 for controlling the on-off of the water channel 1;

[0022] The air control assembly 3 includes a pneumatic ball valve 31 provided on the water channel 1, a connecting rod 32 provided above the conveyor belt for transporting coal, a stroke valve 1 33 provided on the side of the connecting rod 32, an air channel 34 connected to the stroke valve 1 33, and a control valve group 35 provided on the air channel 34 for controlling the opening and closing of the pneumatic ball valve 31;

[0023] In actual use, when coal is transported on the conveyor belt, the coal blocks hit the connecting rod 32, causing the connecting rod 32 to tilt, thereby causing the connecting rod 32 to squeeze the stroke valve 1 33, so that the stroke valve 1 33 is ventilated and the pneumatic ball valve 31 is controlled to open by the control valve group 35, so that water mist can be sprayed from the nozzle 2; when there is no coal on the conveyor belt, the connecting rod 32 remains in a vertical state under the action of gravity, so that the connecting rod 32 does not squeeze the stroke valve 1 33, so that the control valve group 35 controls the pneumatic ball valve 31 to close, that is, to shut down the water mist dust suppression operation; that is, the connecting rod 32 is used to determine whether coal is transported on the conveyor belt, and the stroke valve 1 33 and the control valve group 35 are used to control the opening and closing of the pneumatic ball valve 31, so that the purpose of automatically opening and closing the spray dust suppression control according to whether the conveyor belt is transporting coal can be achieved;

[0024] Furthermore, the present application relies on the pressurized gas inside the gas path 34 for spray dust control to prevent the generation of electric sparks, making it convenient for use in explosion-proof environments such as mines.

[0025] As a further illustration of this application:

[0026] The control valve group 35 includes a three-position, five-way control valve 351 provided on the gas circuit 34, a two-position, three-way delayed reversing valve 352 provided on the gas circuit 34, a second stroke valve 353 provided on the gas circuit 34, and a cylinder 354 connected to the two-position, three-way delayed reversing valve 352 for use with the second stroke valve 353;

[0027] When coal is transported on the conveyor belt, the coal blocks hit the connecting rod 32, causing the connecting rod 32 to tilt, thereby causing the connecting rod 32 to squeeze the stroke valve 1 33. After the stroke valve 1 33 is ventilated, the outlet direction of the three-position five-way control valve 351 is reversed, thereby opening the pneumatic ball valve 31. At the same time, after the stroke valve 1 33 is ventilated, the two-position three-way delayed reversing valve 352 is reversed. After a certain delay, the two-position three-way delayed reversing valve 352 extends its control cylinder 354, thereby causing the cylinder 354 to squeeze the stroke valve 2 353. After the stroke valve 2 353 is ventilated, the outlet direction of the three-position five-way control valve 351 is reversed, thereby opening the pneumatic ball valve 31.

[0028] Since the coal blocks on the conveyor belt are mostly transported in piles, the coal mines intermittently hit the connecting rod 32, which can cause the connecting rod 32 to intermittently squeeze the stroke valve 1 33, so that the pressurized gas intermittently enters the two-position three-way delay reversing valve 352. Each time the pressurized gas enters the two-position three-way delay reversing valve 352, the two-position three-way delay reversing valve 352 can be delayed again. Therefore, the delay time of the two-position three-way delay reversing valve 352 can be adjusted according to the distance between the coal block piles.

[0029] As a further illustration of this application:

[0030] The air inlet end of the three-position five-way control valve 351 is connected to the air path 34, the reversing control end 1 of the three-position five-way control valve 351 is connected to the stroke valve 1 33, the reversing control end 2 of the three-position five-way control valve 351 is connected to the stroke valve 2 353, the air outlet end 1 of the three-position five-way control valve 351 is connected to the opening control end of the pneumatic ball valve 31, and the air outlet end 2 of the three-position five-way control valve 351 is connected to the closing control end of the pneumatic ball valve 31;

[0031] The reversing control end of the two-position three-way delayed reversing valve 352 is connected to the travel valve 1 33;

[0032] When coal is transported on the conveyor belt, the coal blocks hit the connecting rod 32, causing the connecting rod 32 to tilt, thereby causing the connecting rod 32 to squeeze the stroke valve 1 33, so that the pressurized gas discharged after the stroke valve 1 33 is opened enters the reversing control end 1 of the three-position five-way control valve 351, causing the three-position five-way control valve 351 to reverse. At this time, the pressurized gas inside the gas path 34 is discharged through the gas outlet end 1 of the three-position five-way control valve 351, which can allow the pressurized gas to enter the opening control end of the pneumatic ball valve 31 and then control the pneumatic ball valve 31 to open. At the same time, the pressurized gas discharged after the stroke valve 1 33 is opened enters the two-position three-way delayed reversing The reversing control end of valve 352, the two-position three-way delayed reversing valve 352 is reversed after a delay, so that the pressure gas inside the air circuit 34 pushes the cylinder 354 to move once, that is, the cylinder 354 extends and squeezes the stroke valve 2 353, so that the pressure gas discharged after the stroke valve 2 353 is opened enters the reversing control end 2 of the three-position five-way control valve 351, so that the three-position five-way control valve 351 is reversed. At this time, the pressure gas inside the air circuit 34 is discharged through the outlet end 2 of the three-position five-way control valve 351, so that the pressure gas enters the closing control end of the pneumatic ball valve 31 and then controls the pneumatic ball valve 31 to close.

[0033] As a further illustration of this application:

[0034] The bottom height of the connecting rod 32 is higher than the top height of the conveyor belt body, so that when coal is transported on the conveyor belt, the coal can normally hit the connecting rod 32, and when the conveyor belt is not transporting coal, the conveyor belt body is prevented from hitting the connecting rod 32.

[0035] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0038] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A mining air-controlled spray dust suppression device used in conjunction with a conveyor belt, characterized in that: It comprises a water channel (1) provided with a nozzle (2) and an air control component (3) for controlling the on / off of the water channel (1); The air control assembly (3) comprises a pneumatic ball valve (31) arranged on a waterway (1), a connecting rod (32) arranged above a conveyor belt for conveying coal, a stroke valve (33) arranged on the side of the connecting rod (32), an airway (34) connected to the stroke valve (33), and a control valve group (35) arranged on the airway (34) for controlling the opening and closing of the pneumatic ball valve (31).

2. The mining air-controlled spray dust suppression device used in conjunction with a conveyor belt according to claim 1 is characterized in that: The control valve group (35) comprises a three-position, five-way control valve (351) provided on the gas circuit (34), a two-position, three-way delayed reversing valve (352) provided on the gas circuit (34), a second stroke valve (353) provided on the gas circuit (34), and a cylinder (354) connected to the two-position, three-way delayed reversing valve (352) for use in conjunction with the second stroke valve (353).

3. The mining air-controlled spray dust suppression device used in conjunction with a conveyor belt according to claim 2 is characterized in that: The air inlet end of the three-position five-way control valve (351) is connected to the air path (34), the reversing control end 1 of the three-position five-way control valve (351) is connected to the stroke valve 1 (33), the reversing control end 2 of the three-position five-way control valve (351) is connected to the stroke valve 2 (353), the air outlet end 1 of the three-position five-way control valve (351) is connected to the opening control end of the pneumatic ball valve (31), and the air outlet end 2 of the three-position five-way control valve (351) is connected to the closing control end of the pneumatic ball valve (31); The reversing control end of the two-position three-way delayed reversing valve (352) is connected to the travel valve 1 (33).

4. The mining air-controlled spray dust suppression device used in conjunction with a conveyor belt according to claim 1 is characterized in that: The bottom height of the connecting rod (32) is higher than the top height of the conveyor belt.

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