Coal mining dust removal system

Abstract

The invention belongs to the technical field of coal mining, and discloses a coal mining dust removal system which comprises a moving seat, a shell is fixedly mounted at the top of the moving seat, a main control panel is fixedly mounted on the left side of the shell, an access door is rotatably mounted on the rear side of the shell, and a dust collection opening is fixedly formed in the front side of the shell. Through operation of a dust collection fan, a filter plate in the dust removal box isolates dust in air into the dust removal box, at the moment, gas downwards extrudes a piston plate, spraying water in a spraying box is conveyed to a spraying head through a spraying pipe, the dust in the dust removal box is adsorbed, and compared with a traditional device, the dust removal efficiency is improved. According to the device, the piston plate can be gradually pushed downwards through wind power provided by the dust collection fan under the condition that the movable seat moves and no external water supply is temporarily provided, so that spraying water is slowly sprayed out, spraying dust falling is achieved, dust in the dust removal box is prevented from escaping, and the dust falling and removing efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine exploitation, and particularly relates to a dust removal system for coal mine exploitation. Background Technique

[0002] Coal mine exploitation refers to the process of extracting coal resources from underground or open-pit mines through systematic engineering and technical means. This process is generally divided into two main methods: underground mining and open-pit mining. In underground mining, shafts and roadways are excavated to reach the coal seam, and longwall mining, room-and-pillar mining and other methods are used to obtain coal; in open-pit mining, the surface covering layer is directly stripped, and the coal seam is exposed and then excavated.

[0003] A large amount of dust is generated during coal mine exploitation. These dusts not only endanger the health of miners, such as causing pneumoconiosis, but also may cause explosions or pollute the environment. Traditional dust removal methods mainly include wet dust removal and mechanical dust removal. Wet dust removal is mainly achieved by spraying. Atomized water droplets formed by spraying capture dust particles in the air, so that these dust particles fall and settle by their own gravity, while mechanical dust removal is mainly carried out by a dust removal fan.

[0004] However, in actual use, traditional dust removal systems are difficult to move, which results in the inability of wet dust removal systems to operate continuously in the case of mobile exploitation and temporary roadway driving. And dust removal by a dust removal fan will cause dust to accumulate inside the fan after collecting the dust-containing air in the mine, which is likely to cause the premature failure of the dust removal components, and too much dust also poses a safety risk, so it is necessary to improve and optimize it. Summary of the Invention

[0005] The purpose of the present invention is to provide a dust removal system for coal mine exploitation to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A dust removal system for coal mine exploitation, including a moving base, a housing is fixedly installed on the top of the moving base, a main control panel is fixedly installed on the left side of the housing, a maintenance door is rotatably installed on the rear side of the housing, and a dust collection port is fixedly installed on the front side of the housing.

[0007] Inside the housing, a dust removal box is fixedly installed. The dust removal box is interconnected with the dust collection port. A dust collection fan is fixedly installed at the rear side of the dust removal box. A filter plate is fixedly installed inside the dust removal box. A spray head is fixedly installed at the top of the inner wall of the dust removal box. A sewage discharge pipe is fixedly installed at the bottom of the dust removal box. A one-way valve is fixedly installed inside the sewage discharge pipe. A spray box is fixedly installed inside the housing. The air suction port of the dust collection fan is interconnected with the dust removal box. The exhaust port of the dust collection fan is interconnected with the spray box. Guide grooves are formed on the left and right sides of the inner wall of the spray box. A piston plate is movably installed inside the two guide grooves. A spray pipe is fixedly installed at the bottom of the front side of the spray box. One end of the spray pipe is interconnected with the spray box. The other end of the spray pipe is interconnected with the spray head. A one-way valve is fixedly installed inside the spray pipe. A water storage tank is fixedly installed inside the housing.

[0008] Preferably, an exhaust port is formed at the top of the rear side of the spray box. A water replenishing water pump is fixedly installed on the right side of the water storage tank. A valve is fixedly installed on the left side of the spray box. One end of the water replenishing water pump is interconnected with the valve. The valve is interconnected with the spray box.

[0009] Preferably, a fixing column is fixedly installed inside the one-way valve. A plug is sleeved on the top of the fixing column. The plug and the fixing column are elastically connected by a first spring. The plug seals the one-way valve.

[0010] Preferably, a water spraying water pump of the water storage tank is fixedly installed on the top of the water storage tank. A two-way valve is fixedly installed on the top of the water storage tank. One end of the water spraying water pump is interconnected with the water storage tank. The other end of the water spraying water pump is interconnected with the two-way valve.

[0011] Preferably, a spray pipe is fixedly installed on the top of the housing. One end of the spray pipe is interconnected with the two-way valve. A high-pressure spray head is movably installed on the front side of the housing. The high-pressure spray head and the two-way valve are interconnected by a telescopic pipe.

[0012] Preferably, an adjusting pipe is rotatably installed on the outer wall of the spray pipe. An atomizing spray head is fixedly installed on the top of the adjusting pipe. A convex edge is fixedly installed at the bottom of the adjusting pipe. A clamping groove corresponding to the convex edge is formed on the outer wall of the spray pipe.

[0013] Preferably, a sealing gasket is arranged on the outer wall of the spray pipe. One end of the sealing gasket is in fit with the adjusting pipe.

[0014] Preferably, a telescopic groove is formed inside the convex edge. A ball is movably installed inside the telescopic groove. The ball and the telescopic groove are elastically connected by a second spring.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. Through the operation of the dust collection fan, the filter plate inside the dust removal box isolates the dust in the air inside the dust removal box. At this time, as the air inside the spray box gradually increases, the gas will squeeze the piston plate downward, causing the spray water inside the spray box to be transported to the inside of the spray head through the spray pipe and sprayed out by the spray head to adsorb the dust inside the dust removal box. Compared with traditional devices, this device can, when the moving seat is moving and there is temporarily no external water supply, gradually push the piston plate downward through the wind force provided by the dust collection fan, so that the spray water slowly sprays out, realizing spray dust reduction, avoiding the escape of dust inside the dust removal box, and improving the dust reduction and removal efficiency.

[0017] 2. Through the setting of the second spring and the ball, the ball always applies a pre-tightening force to the spray water pipe. Through this pre-tightening force, the stability of the adjusting pipe during spraying can be ensured. When the staff rotates the adjusting pipe, this pre-tightening force is broken, enabling the staff to easily rotate the adjusting pipe to achieve the adjustment of the spraying direction. Compared with traditional devices, this device is convenient to operate, facilitates the rapid adjustment of the spraying direction, improves the spraying effect, and reduces the operation burden of the staff.

[0018] 3. Through the design of the telescopic pipe, when the staff needs to mine coal, after pushing the moving seat to a suitable position, pulling the high-pressure nozzle outward can enable the staff to perform the operation of injecting water and removing dust from the coal seam through the high-pressure water sprayed by the high-pressure nozzle. It has high applicability, is convenient and fast, and improves the working environment of the staff during mining. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the outer shell of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the internal structure of the outer shell of the present invention;

[0022] Figure 4 It is a schematic structural diagram of the dust removal box of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the sewage pipe of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the piston plate of the present invention;

[0025] Figure 7 It is a schematic structural diagram of the water storage tank of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the telescopic pipe of the present invention;

[0027] Figure 9 Schematic diagram of the water spray pipe structure of the present invention;

[0028] Figure 10 Schematic diagram of the ball structure of the present invention;

[0029] Figure 11 Schematic diagram of the sealing gasket structure of the present invention.

[0030] In the figure: 1. Moving seat; 2. Outer shell; 21. Main control panel; 22. Maintenance door; 3. Dust removal box; 31. Dust collection port; 32. Dust collection fan; 33. Spray head; 34. Filter plate; 35. Drain pipe; 4. Check valve; 41. Fixed column; 42. Plug; 43. First spring; 5. Spray box; 51. Spray pipe; 52. Guide groove; 53. Piston plate; 54. Exhaust port; 55. Water replenishing pump; 56. Valve; 6. Water storage tank; 61. Water spray pump; 62. Two-way valve; 63. High-pressure spray head; 64. Telescopic pipe; 65. Water spray pipe; 7. Adjusting pipe; 71. Atomizing spray head; 72. Sealing gasket; 73. Flange; 74. Telescopic groove; 75. Ball; 76. Second spring. Specific implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1 to 11 shown, the embodiment of the present invention provides a coal mine dust removal system, including a moving seat 1. A housing 2 is fixedly installed on the top of the moving seat 1. A main control panel 21 is fixedly installed on the left side of the housing 2. A maintenance door 22 is rotatably installed on the rear side of the housing 2. A dust collection port 31 is fixedly installed on the front side of the housing 2;

[0033] The dust removal box 3 is fixedly installed inside the outer shell 2. The dust removal box 3 is communicated with the dust collection port 31. The dust collection fan 32 is fixedly installed at the rear side of the dust removal box 3. The filter plate 34 is fixedly installed inside the dust removal box 3. The spray head 33 is fixedly installed at the top of the inner wall of the dust removal box 3. The sewage discharge pipe 35 is fixedly installed at the bottom of the dust removal box 3. The one-way valve 4 is fixedly installed inside the sewage discharge pipe 35. The spray box 5 is fixedly installed inside the outer shell 2. The air suction port of the dust collection fan 32 is communicated with the dust removal box 3, and the exhaust port of the dust collection fan 32 is communicated with the spray box 5. Guide grooves 52 are formed on the left and right sides of the inner wall of the spray box 5. The piston plate 53 is movably installed inside the two groups of guide grooves 52. The spray pipe 51 is fixedly installed at the bottom of the front side of the spray box 5. One end of the spray pipe 51 is communicated with the spray box 5, and the other end of the spray pipe 51 is communicated with the spray head 33. The one-way valve 4 is fixedly installed inside the spray pipe 51. The water storage tank 6 is fixedly installed inside the outer shell 2.

[0034] When dust removal operation is required, the staff first push the device to a suitable position through the moving seat 1. In the figure of pushing the moving seat 1, the staff can start the dust collection fan 32 through the main control panel 21. The operation of the dust collection fan 32 will suck the dust-containing air from the outside into the interior of the dust removal box 3 through the dust collection port 31. Subsequently, the dust will be isolated inside the dust removal box 3 by the filter plate 34, and the filtered air will be transported to the interior of the spray box 5. As the air in the spray box 5 gradually increases, the air will push the piston plate 53 downward along the guide groove 52. As the piston plate 53 moves downward, the piston plate 53 will squeeze the spray water inside the spray box 5 downward. Further, the spray water inside the spray box 5 will be transported to the spray head 33 through the spray pipe 51 and finally sprayed out by the spray head 33 to spray the dust inside the dust removal box 3. The sprayed dust will fall due to gravity. Then the staff can use the external sewage pump to pump out the sewage inside the dust removal box 3 through the sewage pipe 35. When the spray water enters the interior of the spray pipe 51, the spray water will squeeze the plug 42, causing the plug 42 to displace along the fixed column 41. Further, the spray water can enter the interior of the spray pipe 51. After the dust collection fan 32 stops operating, the plug 42 will reset through the elastic potential energy of the spring 1 43 to block the one-way valve 4, so that the spray water can only enter the spray pipe 51 unidirectionally. Based on the above principle, when the dust removal box 3 is performing dust removal, the sewage inside it will accumulate inside the dust removal box 3, and the one-way valve 4 will be opened during sewage discharge through the sewage pipe 35. After the staff push the moving seat 1 to a suitable position, the staff connect the water storage tank 6 to the water source. At this time, the staff can open the exhaust port 54 and open the valve 56 and the water replenishing water pump 55 through the main control panel 21. Further, the water replenishing water pump 55 will transport the spray water inside the water storage tank 6 to the interior of the spray box 5 through the valve 56. As the water level rises, the spray water inside the spray box 5 is stored again, and the piston plate 53 will reset upward to prepare for the next spray. And with the operation of the water replenishing water pump 55, the spray head 33 can also perform the spray operation.

[0035] Through the operation of the dust collection fan 32, the filter plate 34 inside the dust removal box 3 will isolate the dust in the air inside the dust removal box 3. At this time, as the air in the spray box 5 gradually increases, the gas will squeeze the piston plate 53 downward, so that the spray water inside the spray box 5 is transported to the interior of the spray head 33 through the spray pipe 51 and sprayed out by the spray head 33 to adsorb the dust inside the dust removal box 3. Compared with the traditional device, this device can, when the moving seat 1 is moving and there is no external water supply temporarily, gradually push the piston plate 53 downward through the wind force provided by the dust collection fan 32, so that the spray water is slowly sprayed out, realizing spray dust reduction, avoiding the escape of dust inside the dust removal box 3, and improving the dust reduction and removal efficiency.

[0036] Among them, an exhaust port 54 is opened at the top of the rear side of the spray box 5, a water replenishing water pump 55 is fixedly installed on the right side of the water storage tank 6, a valve 56 is fixedly installed on the left side of the spray box 5, one end of the water replenishing water pump 55 is communicated with the valve 56, and the valve 56 is communicated with the spray box 5.

[0037] The valve 56 is equipped with a valve actuator for controlling the opening and closing of the valve 56, and the operation of the water replenishing water pump 55 is used to transport spray water into the interior of the spray box 5.

[0038] Among them, a fixing column 41 is fixedly installed inside the one-way valve 4, a plug 42 is sleeved on the top of the fixing column 41, and the plug 42 and the fixing column 41 are elastically connected by a first spring 43, and the plug 42 seals the one-way valve 4.

[0039] Through the setting of the one-way valve 4, the spray water can only open the one-way valve 4 under pressure, and only allows the one-way transportation of the spray water and sewage.

[0040] Among them, a water spraying water pump 61 is fixedly installed on the top of the water storage tank 6, a two-way valve 62 is fixedly installed on the top of the water storage tank 6, one end of the water spraying water pump 61 is communicated with the water storage tank 6, and the other end of the water spraying water pump 61 is communicated with the two-way valve 62.

[0041] Among them, a spray water pipe 65 is fixedly installed on the top of the outer shell 2, one end of the spray water pipe 65 is communicated with the two-way valve 62, a high-pressure nozzle 63 is movably installed on the front side of the outer shell 2, and the high-pressure nozzle 63 and the two-way valve 62 are communicated with each other through a telescopic pipe 64.

[0042] The operation of the water spraying water pump 61 can transport the water inside the water storage tank 6 to the two-way valve 62. The staff can transport the water to the high-pressure nozzle 63 or the spray water pipe 65 through the two-way valve 62, and can also supply water to the high-pressure nozzle 63 and the spray water pipe 65 at the same time. The staff can pull the high-pressure nozzle 63 outwards to the coal mine mining area for water injection dust removal;

[0043] Coal seam water injection is the most basic and effective dust prevention measure in coal mine mining. Pressure water is injected into the coal body of the working face that has not been mined through drilling, so that the coal body is pre-wetted, thereby greatly reducing the generation of coal dust during the mining process.

[0044] Through the design of the telescopic pipe 64, when the staff needs to mine coal, after pushing the moving seat 1 to a suitable position and stretching the high-pressure nozzle 63 outwards, the staff can use the high-pressure water sprayed by the high-pressure nozzle 63 to carry out water injection dust removal operations on the coal seam, with high applicability, convenience and speed, and improving the working environment of the staff during mining.

[0045] Among them, an adjustment pipe 7 is rotatably installed on the outer wall of the water spray pipe 65. A mist spray head 71 is fixedly installed at the top of the adjustment pipe 7, and a flange 73 is fixedly installed at the bottom of the adjustment pipe 7. A clamping groove corresponding to the flange 73 is formed on the outer wall of the water spray pipe 65.

[0046] Through the setting of the flange 73, the adjustment pipe 7 can rotate freely on the outer wall of the water spray pipe 65.

[0047] Among them, a sealing gasket 72 is arranged on the outer wall of the water spray pipe 65, and one end of the sealing gasket 72 is in contact with the adjustment pipe 7.

[0048] Among them, a telescopic groove 74 is formed inside the flange 73, a ball 75 is movably installed inside the telescopic groove 74, and the ball 75 is elastically connected to the telescopic groove 74 through a second spring 76.

[0049] After the water spray pipe 65 receives water, the mist spray head 71 will spray a large amount of water outwards. At this time, the staff can manually rotate the adjustment pipe 7 to adjust the orientation of the mist spray head 71. When the adjustment pipe 7 is stationary, the ball 75 will give the water spray pipe 65 a squeezing force through the elastic potential energy of the second spring 76, so that the adjustment pipe 7 and the water spray pipe 65 are temporarily fixed. When the staff manually rotates and the rotation force is sufficient to overcome the pre-tightening force of the second spring 76, the ball 75 will be squeezed into the telescopic groove 74, and at this time the adjustment pipe 7 can be rotated.

[0050] Through the setting of the second spring 76 and the ball 75, the ball 75 always exerts a pre-tightening force on the water spray pipe 65. Through this pre-tightening force, the stability of the adjustment pipe 7 during spraying can be ensured. When the staff rotates the adjustment pipe 7, this pre-tightening force is broken, so that the staff can easily rotate the adjustment pipe 7 to adjust the spraying orientation. Compared with traditional devices, this device is easy to operate, convenient for quickly adjusting the spraying direction, improving the spraying effect, and reducing the operation burden of the staff.

[0051] Working principle and usage process:

[0052] When dust removal operation is required, the staff first push the device to a suitable position through the moving seat 1. In the figure of pushing the moving seat 1, the staff can start the dust collection fan 32 through the main control panel 21. The operation of the dust collection fan 32 will suck the dust-containing air from the outside into the interior of the dust removal box 3 through the dust collection port 31. Subsequently, the dust will be isolated inside the dust removal box 3 by the filter plate 34, and the filtered air will be transported into the interior of the spray box 5. As the air inside the spray box 5 gradually increases, the air will push the piston plate 53 downward along the guide groove 52. As the piston plate 53 moves downward, the piston plate 53 will squeeze the spray water inside the spray box 5 downward. Further, the spray water inside the spray box 5 will be transported to the spray head 33 through the spray pipe 51 and finally sprayed out by the spray head 33 to spray the dust inside the dust removal box 3. The sprayed dust will fall due to gravity. Then the staff can use the sewage discharge pipe 35 and an external sewage pump to pump out the sewage inside the dust removal box 3. When the spray water enters the interior of the spray pipe 51, the spray water will squeeze the plug 42, causing the plug 42 to displace along the fixed column 41. Further, the spray water can enter the interior of the spray pipe 51. After the dust collection fan 32 stops operating, the plug 42 will reset through the elastic potential energy of the spring 43 to block the one-way valve 4, so that the spray water can only enter the spray pipe 51 unidirectionally. Based on the above principle, when the dust removal box 3 is performing dust removal, the sewage inside it will accumulate inside the dust removal box 3, and the one-way valve 4 will be opened during sewage discharge through the sewage discharge pipe 35. After the staff push the moving seat 1 to a suitable position, the staff connect the water storage tank 6 to the water source. At this time, the staff can open the exhaust port 54 and open the valve 56 and the water replenishing water pump 55 through the main control panel 21. Further, the water replenishing water pump 55 will transport the spray water inside the water storage tank 6 to the interior of the spray box 5 through the valve 56. As the water level rises, the spray water inside the spray box 5 is stored again, and the piston plate 53 will reset upward to prepare for the next spraying. And with the operation of the water replenishing water pump 55, the spray head 33 can also perform spraying operation.

[0053] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal system for coal mine mining, including a moving seat (1), characterized in that: The top of the moving seat (1) is fixedly installed with a housing (2). The left side of the housing (2) is fixedly installed with a main control panel (21). The rear side of the housing (2) is rotatably installed with a maintenance door (22). The front side of the housing (2) is fixedly installed with a dust collection port (31). Inside the housing (2), a dust removal box (3) is fixedly installed. The dust removal box (3) is in communication with the dust collection port (31). A dust collection fan (32) is fixedly installed on the rear side of the dust removal box (3). A filter plate (34) is fixedly installed inside the dust removal box (3). A spray head (33) is fixedly installed at the top of the inner wall of the dust removal box (3). A sewage discharge pipe (35) is fixedly installed at the bottom of the dust removal box (3). A one-way valve (4) is fixedly installed inside the sewage discharge pipe (35). A spray box (5) is fixedly installed inside the housing (2). The air suction port of the dust collection fan (32) is in communication with the dust removal box (3). The exhaust port of the dust collection fan (32) is in communication with the spray box (5). Guide grooves (52) are opened on both the left and right sides of the inner wall of the spray box (5). A piston plate (53) is movably installed inside the two guide grooves (52). A spray pipe (51) is fixedly installed at the bottom of the front side of the spray box (5). One end of the spray pipe (51) is in communication with the spray box (5). The other end of the spray pipe (51) is in communication with the spray head (33). A one-way valve (4) is fixedly installed inside the spray pipe (51). A water storage tank (6) is fixedly installed inside the housing (2).

2. The dust removal system for coal mine exploitation according to claim 1, characterized in that: An exhaust port (54) is opened at the top of the rear side of the spray box (5). A water replenishing water pump (55) is fixedly installed on the right side of the water storage tank (6). A valve (56) is fixedly installed on the left side of the spray box (5). One end of the water replenishing water pump (55) is in communication with the valve (56). The valve (56) is in communication with the spray box (5).

3. A coal mine dust removal system according to claim 1, characterized in that: A fixed column (41) is fixedly installed inside the one-way valve (4). A plug (42) is sleeved on the top of the fixed column (41). The plug (42) and the fixed column (41) are elastically connected by a first spring (43). The plug (42) blocks the one-way valve (4).

4. A coal mine dust removal system according to claim 1, characterized in that: A water spraying water pump (61) of the water storage tank is fixedly installed on the top of the water storage tank (6). A two-way valve (62) is fixedly installed on the top of the water storage tank (6). One end of the water spraying water pump (61) is in communication with the water storage tank (6). The other end of the water spraying water pump (61) is in communication with the two-way valve (62).

5. A coal mine dust removal system according to claim 1, characterized in that: A spray pipe (65) is fixedly installed on the top of the housing (2). One end of the spray pipe (65) is in communication with the two-way valve (62). A high-pressure spray head (63) is movably installed on the front side of the housing (2). The high-pressure spray head (63) and the two-way valve (62) are in communication with each other through a telescopic pipe (64).

6. The coal mine dust removal system according to claim 5, wherein: An adjustment pipe (7) is rotatably installed on the outer wall of the water spray pipe (65). A mist spray nozzle (71) is fixedly installed at the top of the adjustment pipe (7). A flange (73) is fixedly installed at the bottom of the adjustment pipe (7). A clamping groove corresponding to the flange (73) is formed in the outer wall of the water spray pipe (65).

7. The coal mine dust removal system according to claim 6, characterized in that: A sealing washer (72) is arranged on the outer wall of the water spray pipe (65). One end of the sealing washer (72) is in mutual contact with the adjustment pipe (7).

8. A coal mine dust removal system according to claim 6, characterized in that: A telescopic groove (74) is formed in the flange (73). A ball (75) is movably installed in the telescopic groove (74). The ball (75) and the telescopic groove (74) are elastically connected by a second spring (76).

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