Coal mine coal mining spray dust prevention device

Abstract

The application discloses a coal mine coal mining spray dust prevention device and belongs to the technical field of spray dust prevention equipment, which comprises a rack, one end of the rack is fixedly provided with a motor, the output end of the motor is connected with a first rotating shaft, the other end of the rack is fixedly connected with an end plate, a blowing mechanism is arranged on the end plate, the blowing mechanism comprises a blast pipe arranged on the end plate, the middle part of the blast pipe is rotatably provided with a second rotating shaft which is in transmission connection with the first rotating shaft, one end of the second rotating shaft is provided with a fan blade, the outer wall of the blast pipe is provided with an annular air inlet groove, the inner side of the air inlet groove is provided with a dust screen, and the outer wall of the second rotating shaft is connected with a plurality of brushes which are located on the inner side of the air inlet groove. The motor and the first rotating shaft are arranged, the fan blade and the water pump can be simultaneously driven to work, the water pump sprays water mist through the spray head, the water mist is taken out by the fan blade, and the spray dust prevention efficiency is improved; the fan blade and the water pump are synchronously driven to work by the first rotating shaft, the spray amount can be synchronously increased or decreased when the air speed is increased or decreased, and separate adjustment is not needed.

Description

Technical Field

[0001] This invention relates to a spray dust suppression device, and more particularly to a coal mine coal mining spray dust suppression device, belonging to the technical field of spray dust suppression equipment. Background Technology

[0002] Dust pollution is one of the core issues threatening safe production and worker health during coal mining. Spray dust suppression devices typically rely on fans to drive airflow to mix with water mist, and use filters to intercept large dust particles to protect internal components.

[0003] Existing spray dust suppression devices have the following shortcomings: In high-concentration dust environments, the filters of existing coal mine spray dust suppression devices are prone to rapid dust accumulation and blockage, leading to a sharp increase in ventilation resistance.

[0004] Therefore, the present invention proposes a new solution. Summary of the Invention

[0005] The main purpose of this invention is to address the shortcomings of existing technologies and to provide a coal mine dust suppression spray device.

[0006] The objective of this invention can be achieved by adopting the following technical solution:

[0007] A coal mine dust suppression spray device includes a frame. A motor is fixedly mounted at one end of the frame, and the output end of the motor is connected to a first rotating shaft. An end plate is fixedly connected to the other end of the frame. An air supply mechanism is provided on the end plate. The air supply mechanism includes a duct mounted on the end plate. A second rotating shaft, which is rotatably connected to the first rotating shaft, is mounted in the middle of the duct. A fan blade is mounted at one end of the second rotating shaft. An annular air inlet groove is provided on the outer wall of the duct, and a dustproof net is provided on the inner side of the air inlet groove. The outer wall of the second rotating shaft... The frame is equipped with several brushes located inside the air inlet slot. A spraying mechanism is provided on the frame. The spraying mechanism includes two mounting plates that are rotatably connected in a cross direction. A water distribution pipe is installed on the outer wall of the mounting plate located inside the air duct. Several nozzles are installed on the water distribution pipe. A drive mechanism is installed on the first rotating shaft to drive the two mounting plates to open and close synchronously. A water pump is installed on the frame and is drivenly connected to the first rotating shaft. The output end of the water pump is connected to an output pipe. The output pipe is connected to the two water distribution pipes through a flexible hose.

[0008] Preferably, the driving mechanism includes a turntable fixedly connected to one end of the first rotating shaft, an eccentric rod eccentrically connected to the outer wall of the turntable, a transmission frame that cooperates with the eccentric rod is slidably installed below the air duct, and two transmission plates that are rotatably connected to the two mounting plates respectively are rotatably installed on the top of the transmission frame.

[0009] Preferably, a support frame for supporting the rotation of the air duct is fixedly connected to one end of the frame near the air duct, and two symmetrical sliding rods are fixedly connected to the support frame. Sliding sleeves that are slidably connected to the sliding rods are fixedly connected to both ends of the transmission frame.

[0010] Preferably, the bottom of the air duct is provided with a rotating groove, a first rotating rod is provided below the rotating groove, a first rotating hole is provided in the middle of the mounting plate and rotatably connected to the first rotating rod, a second rotating rod is fixedly connected to the top of the transmission frame and rotatably connected to the transmission plate, and a second rotating hole is provided at the bottom of the mounting plate and rotatably connected to the transmission plate.

[0011] Preferably, a protective cover is installed at one end of the air duct.

[0012] Preferably, a connecting rod is fixedly connected to the side of the brush near the second rotating shaft, and a connecting sleeve is fixedly connected to one end of the connecting rod. The connecting sleeve is installed on the outer wall of the second rotating shaft by bolts, and mounting holes are provided on both the connecting sleeve and the second rotating shaft.

[0013] Preferably, a first pulley is fixedly connected to the outer wall of the first rotating shaft and the outer wall of the second rotating shaft, and a first belt is installed between the two first pulleys. A second pulley is fixedly connected to the outer wall of the first rotating shaft and the rotating shaft of the water pump, and a second belt is installed between the two second pulleys.

[0014] Preferably, wheels are installed at the bottom of the frame, and a handrail is fixedly connected to one end of the frame, with a controller installed on the handrail.

[0015] Preferably, a water tank is fixedly installed on the top of the frame, a connecting pipe installed at the input end of the water pump is connected to the bottom of the water tank, a water filling pipe is connected to the top of the water tank, and a pipe cover is installed on the water filling pipe.

[0016] Preferably, the mounting plate located inside the air duct is an arc-shaped plate, the water distribution pipe installed inside the air duct is an arc-shaped pipe, and the bottom end of the water distribution pipe is fixedly connected to an injection pipe connected to a flexible hose.

[0017] Beneficial technical effects of the present invention: The coal mine dust suppression spray device according to the present invention:

[0018] 1. By setting up a motor and a first rotating shaft, the fan blades and water pump can be driven to work simultaneously. The water pump sprays water through the nozzle, and the water mist is carried out by the fan blades, which improves the efficiency of spray dust suppression.

[0019] 2. Since the fan blades and water pump work synchronously through the first rotating shaft, the spray volume can be increased or decreased synchronously when the wind speed is increased or decreased, without the need for separate adjustment, making it easy to use;

[0020] 3. By setting an air intake groove and installing a dustproof net on the outer wall of the air duct, the brush can be driven to clean the dustproof net when the first rotating shaft rotates, preventing blockage and reducing the cleaning frequency;

[0021] 4. By setting up a drive mechanism, when the motor drives the first rotating shaft to rotate, the drive mechanism can drive the two mounting plates to open and close periodically, thereby periodically increasing or decreasing the spray range and improving the efficiency of spray dust suppression. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;

[0024] Figure 3 This is a cross-sectional view of the overall structure according to a preferred embodiment of the present invention;

[0025] Figure 4 This is a cross-sectional view of the overall structure according to a preferred embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of a rack structure according to a preferred embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of a preferred embodiment of the air duct structure provided by the present invention;

[0028] Figure 7 This is a schematic diagram of a spray mechanism according to a preferred embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of a spray mechanism according to a preferred embodiment of the present invention.

[0030] In the diagram: 1. Frame; 2. Motor; 3. First shaft; 4. End plate; 5. Air duct; 6. Second shaft; 7. Fan blade; 8. Air inlet; 9. Dustproof net; 10. Brush; 11. Mounting plate; 12. Water distribution pipe; 13. Nozzle; 14. Water pump; 15. Output pipe; 16. Turntable; 17. Eccentric rod; 18. Transmission frame; 19. Transmission plate; 20. Support frame; 21. Slide rod; 22. Sliding sleeve ; 23. Rotary groove; 24. First rotating rod; 25. First rotating hole; 26. Second rotating rod; 27. Second rotating hole; 28. Protective cover; 29. ​​Connecting rod; 30. Connecting sleeve; 31. First pulley; 32. First belt; 33. Second pulley; 34. Second belt; 35. Wheel; 36. Handrail; 37. Water tank; 38. Connecting pipe; 39. Water filling pipe; 40. Pipe cover; 41. Injection pipe. Detailed Implementation

[0031] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0032] like Figures 1-8 As shown, the coal mine dust suppression spray device provided in this embodiment includes a frame 1. A motor 2 is fixedly installed at one end of the frame 1, and the output end of the motor 2 is connected to a first rotating shaft 3. An end plate 4 is fixedly connected to the other end of the frame 1. An air supply mechanism is provided on the end plate 4. The air supply mechanism includes a wind duct 5 installed on the end plate 4. A second rotating shaft 6, which is drivenly connected to the first rotating shaft 3, is rotatably installed in the middle of the wind duct 5. A fan blade 7 is installed at one end of the second rotating shaft 6. An annular air inlet groove 8 is provided on the outer wall of the wind duct 5. A dustproof net 9 is provided on the inner side of the air inlet groove 8. The outer wall of the second rotating shaft 6... Several brushes 10 located inside the air inlet 8 are connected to the frame 1. A spraying mechanism is provided on the frame 1. The spraying mechanism includes two mounting plates 11 that are rotatably connected in a cross direction. A water distribution pipe 12 is installed on the outer wall of the mounting plate 11 located inside the air duct 5. Several nozzles 13 are installed on the water distribution pipe 12. A drive mechanism that drives the two mounting plates 11 to open and close synchronously is installed on the first rotating shaft 3. A water pump 14 that is connected to the first rotating shaft 3 is installed on the frame 1. The output end of the water pump 14 is connected to an output pipe 15. The output pipe 15 is connected to the two water distribution pipes 12 through a flexible hose.

[0033] By setting up motor 2 and first rotating shaft 3, the fan blades 7 and water pump 14 can be driven to work simultaneously. Water pump 14 sprays water through nozzle 13, and water mist is carried out by fan blades 7, improving the efficiency of spray dust suppression. Since fan blades 7 and water pump 14 work synchronously driven by first rotating shaft 3, the spray volume can be increased or decreased synchronously when the wind speed is increased or decreased, without the need for separate adjustment, making it convenient to use. By setting air inlet slot 8 on the outer wall of air duct 5 and installing dustproof net 9, the brush 10 can be driven to clean dustproof net 9 when the first rotating shaft 3 rotates, preventing blockage and reducing the cleaning frequency. By setting up a drive mechanism, when motor 2 drives the first rotating shaft 3 to rotate, the drive mechanism can drive two mounting plates 11 to open and close periodically, thereby periodically increasing or decreasing the spray range and improving the efficiency of spray dust suppression.

[0034] In an optional embodiment, the drive mechanism includes a turntable 16 fixedly connected to one end of the first rotating shaft 3, an eccentric rod 17 eccentrically connected to the outer wall of the turntable 16, a transmission frame 18 that cooperates with the eccentric rod 17 is slidably installed below the air duct 5, and two transmission plates 19 that are rotatably connected to two mounting plates 11 are rotatably installed on the top of the transmission frame 18. By setting up a turntable 16, an eccentric rod 17, a transmission frame 18, and a transmission plate 19, when the first rotating shaft 3 rotates, the eccentric rod 17 cooperates with the transmission frame 18 to drive the transmission frame 18 to rise and fall, and the transmission plate 19 cooperates with the two mounting plates 11 to open and close. When the first rotating shaft 3 rotates, when the eccentric rod 17 is at the bottom, it drives the transmission frame 18 to move downward, causing the two mounting plates 11 to merge and reduce the spray range. When the first rotating shaft 3 continues to rotate until the eccentric rod 17 is horizontal, the mounting plates 11 remain unchanged because the sides of the transmission frame 18 are relatively wide. Then, as the first rotating shaft 3 continues to rotate until the eccentric rod 17 is at the top, it drives the transmission frame 18 to move upward, causing the two mounting plates 11 to open and expand the spray range. This allows for the periodic increase and decrease of the spray range, thereby improving the efficiency of dust suppression.

[0035] In an optional embodiment, a support frame 20 for supporting the rotation of the air duct 5 is fixedly connected to one end of the frame 1 near the air duct 5. Two symmetrical sliding rods 21 are fixedly connected to the support frame 20. Sliding sleeves 22 that are slidably connected to the sliding rods 21 are fixedly connected to both ends of the transmission frame 18. A rotating groove 23 is provided at the bottom of the air duct 5. A first rotating rod 24 is provided below the rotating groove 23. A first rotating hole 25 that is rotatably connected to the first rotating rod 24 is provided in the middle of the mounting plate 11. A second rotating rod 26 that is rotatably connected to the transmission plate 19 is fixedly connected to the top of the transmission frame 18. A second rotating hole 27 that is rotatably connected to the transmission plate 19 is provided at the bottom of the mounting plate 11. By setting the sliding rods 21 and sliding sleeves 22, the transmission frame 18 can be vertically raised and lowered. By setting the rotating groove 23, the first rotating rod 24, the first rotating hole 25, the second rotating rod 26 and the second rotating hole 27 to cooperate with the transmission plate 19, in

[0036] In an optional embodiment, a protective cover 28 is installed at one end of the air duct 5. The protective cover 28 is provided to prevent injury to personnel when the fan blades 7 rotate.

[0037] In an optional embodiment, a connecting rod 29 is fixedly connected to the side of the brush 10 near the second rotating shaft 6, and a connecting sleeve 30 is fixedly connected to one end of the connecting rod 29. The connecting sleeve 30 is installed on the outer wall of the second rotating shaft 6 by bolts, and mounting holes are provided on both the connecting sleeve 30 and the second rotating shaft 6. By providing the connecting sleeve 30 and mounting holes, and connecting with bolts, installation is convenient.

[0038] In an optional embodiment, first pulleys 31 are fixedly connected to the outer walls of the first rotating shaft 3 and the second rotating shaft 6, and a first belt 32 is installed between the two first pulleys 31. Second pulleys 33 are fixedly connected to the outer walls of the first rotating shaft 3 and the rotating shaft of the water pump 14, and a second belt 34 is installed between the two second pulleys 33. The belt drive enables the first rotating shaft 3 to drive the water pump 14, the fan blade 7, and the brush 10 to rotate synchronously.

[0039] In an optional embodiment, wheels 35 are mounted on the bottom of the frame 1, and a handrail 36 is fixedly connected to one end of the frame 1. A controller is mounted on the handrail 36. By setting the wheels 35 and the handrail 36, the wheels 35 are equipped with a locking mechanism for easy fixing, and the controller is used to control the switching of the motor 2 and its rotation speed.

[0040] In an optional embodiment, a water tank 37 is fixedly mounted on the top of the frame 1. The bottom of the water tank 37 is connected to a connecting pipe 38 installed at the input end of the water pump 14, and the top of the water tank 37 is connected to a water inlet pipe 39, on which a pipe cover 40 is installed. By setting up the water tank 37, water can be stored in the water tank 37, making it convenient to move to the working face for spraying and dust suppression.

[0041] In an optional embodiment, the mounting plate 11 located inside the air duct 5 is an arc-shaped plate, and the water distribution pipe 12 installed inside the air duct 5 is an arc-shaped pipe, with an injection pipe 41 fixedly connected to the bottom end of the water distribution pipe 12 and connected to a flexible hose. By setting the arc-shaped mounting plate 11 and the arc-shaped water distribution pipe 12, the dust suppression efficiency of the spray is improved.

[0042] In this embodiment, as Figures 1-8 As shown in the figure, the working process of the coal mine dust suppression spray device provided in this embodiment is as follows:

[0043] Step 1: When using the device, start motor 2 via the controller and adjust the speed;

[0044] Step 2: Motor 2 drives the first rotating shaft 3 to rotate, which in turn drives the fan blade 7 and water pump 14 to work through belt drive. Water pump 14 sprays water through nozzle 13, and water mist is carried out through fan blade 7.

[0045] Step 3: When the first rotating shaft 3 rotates, the transmission frame 18 is driven to rise and fall periodically through the eccentric rod 17, thereby driving the two mounting plates 11 to open and close periodically, thus realizing the periodic increase or decrease of the spray range.

[0046] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coal mine dust suppression spray device, comprising a frame (1), characterized in that, A motor (2) is fixedly installed at one end of the frame (1), and the output end of the motor (2) is connected to a first rotating shaft (3). An end plate (4) is fixedly connected to the other end of the frame (1). An air supply mechanism is provided on the end plate (4). The air supply mechanism includes a wind duct (5) installed on the end plate (4). A second rotating shaft (6) that is rotatably connected to the first rotating shaft (3) is rotatably installed in the middle of the wind duct (5). A fan blade (7) is installed at one end of the second rotating shaft (6). An annular air inlet groove (8) is provided on the outer wall of the wind duct (5). A dustproof net (9) is provided on the inner side of the air inlet groove (8). A plurality of air inlets located in the air inlet groove are connected to the outer wall of the second rotating shaft (6). (8) The inner brush (10) is provided on the frame (1). The spray mechanism includes two mounting plates (11) that are rotatably connected in a cross direction. A water distribution pipe (12) is installed on the outer wall of the mounting plate (11) located inside the air duct (5). Several nozzles (13) are installed on the water distribution pipe (12). A drive mechanism for driving the two mounting plates (11) to open and close synchronously is installed on the first rotating shaft (3). A water pump (14) is installed on the frame (1) and is connected to the first rotating shaft (3). The output end of the water pump (14) is connected to an output pipe (15). The output pipe (15) is connected to the two water distribution pipes (12) through a hose.

2. The coal mine dust suppression spray device according to claim 1, characterized in that, The driving mechanism includes a turntable (16) fixedly connected to one end of the first rotating shaft (3). An eccentric rod (17) is eccentrically connected to the outer wall of the turntable (16). A transmission frame (18) that cooperates with the eccentric rod (17) is slidably installed below the air duct (5). Two transmission plates (19) that are rotatably connected to the two mounting plates (11) are rotatably installed on the top of the transmission frame (18).

3. A coal mine dust suppression spray device according to claim 2, characterized in that, The frame (1) is fixedly connected to a support frame (20) for supporting the rotation of the air duct (5) at one end. Two symmetrical sliding rods (21) are fixedly connected on the support frame (20). Both ends of the transmission frame (18) are fixedly connected to sliding sleeves (22) that are slidably connected to the sliding rods (21).

4. A coal mine dust suppression spray device according to claim 3, characterized in that, The bottom of the air duct (5) is provided with a rotating groove (23), and a first rotating rod (24) is provided below the rotating groove (23). The middle part of the mounting plate (11) is provided with a first rotating hole (25) that is rotatably connected to the first rotating rod (24). The top of the transmission frame (18) is fixedly connected with a second rotating rod (26) that is rotatably connected to the transmission plate (19). The bottom end of the mounting plate (11) is provided with a second rotating hole (27) that is rotatably connected to the transmission plate (19).

5. A coal mine dust suppression spray device according to claim 1, characterized in that, A protective cover (28) is installed at one end of the air duct (5).

6. A coal mine dust suppression spray device according to claim 1, characterized in that, A connecting rod (29) is fixedly connected to one side of the brush (10) near the second rotating shaft (6). A connecting sleeve (30) is fixedly connected to one end of the connecting rod (29). The connecting sleeve (30) is installed on the outer wall of the second rotating shaft (6) by bolts. Both the connecting sleeve (30) and the second rotating shaft (6) have mounting holes.

7. A coal mine dust suppression spray device according to claim 1, characterized in that, A first pulley (31) is fixedly connected to the outer wall of the first shaft (3) and the outer wall of the second shaft (6). A first belt (32) is installed between the two first pulleys (31). A second pulley (33) is fixedly connected to the outer wall of the first shaft (3) and the shaft of the water pump (14). A second belt (34) is installed between the two second pulleys (33).

8. A coal mine dust suppression spray device according to claim 1, characterized in that, The bottom of the frame (1) is equipped with wheels (35), and one end of the frame (1) is fixedly connected to a handrail (36), on which a controller is installed.

9. A coal mine dust suppression spray device according to claim 1, characterized in that, A water tank (37) is fixedly installed on the top of the frame (1). A connecting pipe (38) installed at the bottom of the water tank (37) is connected to the input end of the water pump (14). A water filling pipe (39) is connected to the top of the water tank (37). A pipe cover (40) is installed on the water filling pipe (39).

10. A coal mine dust suppression spray device according to claim 1, characterized in that, The mounting plate (11) located inside the air duct (5) is an arc-shaped plate, and the water distribution pipe (12) installed inside the air duct (5) is an arc-shaped pipe. The bottom end of the water distribution pipe (12) is fixedly connected to an injection pipe (41) connected to a hose.

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