A downhole dredging apparatus
Patent Information
- Application Number
- CN202611026103.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-10
- Publication Date
- 2026-10-30
AI Technical Summary
若淤泥堆积过多,会挤占排水空间、堵塞管路,影响井下排水系统正常运行,严重时引发巷道积水、巷道底鼓等安全隐患,因此井下定期清淤是矿山安全生产的重要环节,因此,需要一种井下清淤设备
(1)本发明通过设置的防护箱、排污管、粉碎辊、破碎刀具和防护架,能够对污泥进行打散,便于排污泵将污泥排出,粉碎辊和破碎刀具配合对石块和煤块进行破碎,避免对进料口造成堵塞,通过设置的防护架、第二防护盒和旋转座,能够对进入排污管中的污泥进行初步筛选,减少排污管堵塞的次数,通过设置的旋转环、密封环、旋转齿环、主齿轮和第一驱动电机,能够控制防护架进行转动,对进入排污管的污泥进行再次打散,防护架、旋转架、清洁刮件和支撑杆配合,对排污管进行有效的清理,延长排污管使用的周期,提高清淤设备的使用效果。
Smart Images

Figure CN123006003A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of dredging technology, specifically a well dredging device. Background Technology
[0002] Dredging equipment is a general term for mechanical equipment specifically used to remove silt, sand, debris, and weeds accumulated at the bottom of water bodies, irrigation and drainage channels, rivers, reservoirs, and fishponds. In the long-term production process, coal sludge, sand, wastewater, and debris continuously accumulate in underground mine roadways, water tanks, sump pits, and drainage ditches, forming silt layers. Excessive silt accumulation can obstruct drainage space, clog pipes, and affect the normal operation of the underground drainage system. In severe cases, it can lead to safety hazards such as water accumulation in roadways and roadway floor heave. Therefore, regular underground dredging is a crucial aspect of safe mine production, thus requiring underground dredging equipment.
[0003] Existing underground dredging equipment typically uses a sewage pump body with an external suction and discharge pipeline, a simple excavation mechanism, or a split suction structure. However, when using a sewage pump body for dredging, the stones and coal mixed in the sludge can easily clog the pump body's inlet, requiring frequent shutdowns for cleaning. This reduces the equipment's dredging efficiency and overall effectiveness. Summary of the Invention
[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes an underground dredging device.
[0005] A well cleaning device includes a cleaning vehicle, a protective box, a protective frame, a rotating base, a feed inlet, and a rotating frame; The front of the dredging vehicle is equipped with a shredding blade for cutting waste materials. The protective box is installed on the dredging vehicle, and a sewage pump is installed inside the protective box to carry out dredging work. The feed inlet is located on the bottom surface of the protective box and is connected to the sewage pump; The rotating seat is sleeved on the outside of the feed inlet and fixedly connected to the protective box; The protective frame is rotatably mounted on the bottom surface of the rotating seat and prevents large pieces of waste from entering the feed inlet, thus protecting the feed inlet and preventing it from being blocked. The rotating frame is located at the center of the protective frame and stirs and cleans the dirt inside the feed inlet, extending the service life of the feed inlet.
[0006] As a further aspect of the present invention: the dredging vehicle is provided with a mounting slot for installing a protective box; The top of the protective box is equipped with a sewage pipe that is connected to the sewage pump, and one end of the sewage pipe extends out of the well. The dredging vehicle is equipped with a pulverizing roller that rotates on it. Several of the aforementioned crushing blades are fixed on the crushing roller; Both the feed inlet and the protective frame are located on the rear side of the crushing cutter.
[0007] As a further embodiment of the present invention: the protective frame includes protective side rails and a protective base plate; The protective side rail has a cylindrical structure that is larger at the top and smaller at the bottom, and several first through slots are evenly opened on the protective side rail; The protective base plate is fixed to the protective side rail, and the protective base plate is evenly provided with a number of second channels. The sludge enters the feed inlet through the first channel and the second channel. The rotating frame is vertically positioned at the center of the upper end face of the protective base plate; The rotating frame is equipped with several cleaning scrapers arranged in a circular array to clean the inner wall of the feed inlet; The rotating frame is inclined and has a support rod that is fixedly connected to the protective base plate. When the protective frame rotates, it initially breaks up the sludge and drives the rotating frame, cleaning scraper and support rod to rotate. The support rod works with the rotating frame to stir the dirt inside the feed inlet.
[0008] As a further embodiment of the present invention: the outer wall of the protective box is provided with a second protective box connected to the rotating seat; The bottom end face of the rotating seat is fitted with a rotating ring that is fixed to the protective side rail; The rotating ring is provided with a sealing ring that rotates and seals with the rotating seat. The rotating ring and the rotating seat are then movably sealed to prevent external sludge from entering the rotating seat. A rotating toothed ring is coaxially provided on the sealing ring; The rotating seat has a rotating groove for rotating the gear ring.
[0009] As a further aspect of the present invention: the interior of the second protective box is provided with a main gear that meshes with the rotating gear ring; The second protective box has a connecting groove that communicates with the rotating groove; The second protective box is equipped with a first drive motor that controls the rotation of the main gear; When the first drive motor starts, the main gear and rotating gear ring cause the protective frame to rotate on the rotating seat, thereby stirring and cleaning the dirt inside the feed inlet through the rotating frame, cleaning scraper and support rod.
[0010] As a further embodiment of the present invention: a first protective box aligned with the second protective box is installed on the front side of the protective box; The first protective box contains several gas storage tanks; An air supply pump connected to an air tank is installed on the inner bottom surface of the first protective box.
[0011] As a further aspect of the present invention: the bottom end of the first protective box is fitted and connected to the upper end surface of the second protective box; The air supply pump is equipped with an air injection pipe that penetrates the first protective box and is sealed to extend into the second protective box; When the air supply pump is working, it pressurizes the gas inside the air tank into the second protective box, so that the second protective box and the inside of the rotating seat are gas-sealed, improving the sealing effect of the rotating seat.
[0012] As a further aspect of the present invention: the outlet of the gas storage tank is equipped with a taper connector; The air inlet of the air supply pump is equipped with a main air pipe; The first protective box is equipped with a main adapter that connects to the main air pipe; The main adapter is provided with several first air distribution pipes arranged in a circular array; The other end of the first gas splitter is connected to the adapter.
[0013] As a further aspect of the present invention: an air valve is provided on the first air distribution pipe; A rotating gear is installed on the valve stem of the air valve; A missing gear is installed at the center of the upper end face of the main adapter; The upper end face of the main adapter uses several transmission gears that mesh with the rotating gears; The missing gear can engage or disengage with the transmission gear; The first protective box is equipped with a second drive motor that controls the rotation of the missing gear; When the second drive motor starts, it sequentially opens or closes several air tanks through the cooperation of the missing gear, transmission gear and rotation gear, so that the air supply pump can sequentially evacuate air from the air tanks at different locations, thereby improving the sealing effect of the second protective box and the rotating seat.
[0014] As a further aspect of the present invention: a second gas distribution pipe is vertically connected to the outer side of the main adapter; The air valve is installed on the second air distribution pipe; One end of the second air distribution pipe is provided with an air extraction pipe that penetrates the first protective box; The upper surface of the first protective box is equipped with a filter cover aligned with the air extraction pipe. When the sludge dredging vehicle is working, the filter cover is isolated from the sludge. After the gas in the air tank is used up, the sludge dredging vehicle will continue to dredge, causing the air supply pump to extract air from the outside.
[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention can break up sludge by setting up a protective box, a sewage pipe, a crushing roller, a crushing knife and a protective frame, so that the sewage pump can discharge the sludge. The crushing roller and the crushing knife work together to crush stones and coal, avoiding blockage of the feed inlet. The protective frame, the second protective box and the rotating seat can perform preliminary screening of sludge entering the sewage pipe, reducing the number of times the sewage pipe is blocked. The rotating ring, the sealing ring, the rotating toothed ring, the main gear and the first drive motor can control the protective frame to rotate, and break up the sludge entering the sewage pipe again. The protective frame, the rotating frame, the cleaning scraper and the support rod work together to effectively clean the sewage pipe, extend the service life of the sewage pipe and improve the use effect of the dredging equipment.
[0016] (2) The present invention, through the use of the first protective box, air tank, main air pipe, air supply pump and air injection pipe, can provide sealing gas to the inside of the second protective box and rotating seat, improve the sealing effect of the second protective box and rotating seat, and effectively protect the rotating gear ring and main gear. Through the set adapter, main adapter, first air distribution pipe, second drive motor, air valve, transmission gear, rotating gear and missing gear, different air tanks can be connected to the air supply pump, extending the sealing cycle of the second protective box and rotating seat. Through the set main adapter, air valve, second air distribution pipe, air extraction pipe and filter cover, external air extraction can be performed when necessary, improving the sealing effect of the second protective box and rotating seat and improving the use effect of the dredging equipment. Attached Figure Description
[0017] Figure 1 This is an overall structural diagram of the present invention.
[0018] Figure 2 This is a partial cross-sectional view of the dredging vehicle in this invention.
[0019] Figure 3 This is a partial structural diagram of the protective box and protective frame in this invention.
[0020] Figure 4 This is a partial structural diagram of the protective frame and the second protective box in this invention.
[0021] Figure 5 This is an exploded view of the protective frame and main gear in this invention.
[0022] Figure 6 This is a partial cross-sectional view of the first protective box in this invention.
[0023] Figure 7 This is a partial structural diagram of the gas storage tank and gas supply pump in this invention.
[0024] Figure 8 This is a partial structural diagram of the missing gear and the rotating gear in this invention.
[0025] In the diagram: 1. Dredging vehicle; 2. Protective box; 3. Sewage pipe; 4. First protective box; 5. Crushing roller; 6. Crushing blade; 7. Protective frame; 8. Second protective box; 9. Rotating seat; 10. Feed inlet; 11. Protective side rail; 12. Protective base plate; 13. Rotating frame; 14. Cleaning scraper; 15. Support rod; 16. Rotating ring; 17. Sealing ring; 18. Rotating gear ring; 19. Main gear; 20. First drive motor; 21. Air tank; 22. Sub-connector; 23. Main connector; 24. Air extraction pipe; 25. Main air pipe; 26. Second drive motor; 27. Air valve; 28. Missing gear; 29. Air supply pump; 30. Air injection pipe; 31. First air distribution pipe; 32. Transmission gear; 33. Rotating gear; 34. Filter cover; 35. Second air distribution pipe. Detailed Implementation
[0026] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0027] Example 1 Please see Figures 1-5 This application provides an underground dredging device, including a dredging vehicle 1, a protective box 2, a protective frame 7, a rotating seat 9, a feed inlet 10, and a rotating frame 13. The front side of the dredging vehicle 1 is rotatably equipped with a cutting and crushing blade 6 for cutting waste. The protective box 2 is installed on the dredging vehicle 1, and a sewage pump is installed inside the protective box 2 for dredging. The feed inlet 10 is located on the bottom surface of the protective box 2 and is connected to the sewage pump. The rotating seat 9 is sleeved on the outside of the feed inlet 10 and is fixedly connected to the protective box 2. The protective frame 7 is rotatably located on the bottom surface of the rotating seat 9 and prevents large pieces of waste from entering the feed inlet 10, thus protecting the feed inlet 10 and preventing it from being blocked. The rotating frame 13 is located at the center of the protective frame 7 and stirs and cleans the dirt inside the feed inlet 10, extending the service life of the feed inlet 10.
[0028] In this embodiment, the sludge removal vehicle 1 is driven to the well, started, and moved to the area to be cleaned. The crushing blades 6 are controlled to cut and break up the sludge, and the sewage pump is started to discharge the sludge through the feed inlet 10. The protective frame 7 is controlled to rotate to break up the sludge entering the feed inlet 10 again, reduce the entry of large pieces of hard dirt into the feed inlet 10, and protect the feed inlet 10.
[0029] The dredging vehicle 1 of this invention has an installation slot for installing a protective box 2; the top of the protective box 2 is provided with a sewage pipe 3 connected to a sewage pump, and one end of the sewage pipe 3 extends out of the well; a crushing roller 5 is rotatably installed on the dredging vehicle 1, and a spiral dispersing component that works with the crushing roller 5 and the crushing blades 6 can also be installed on the dredging vehicle 1, so that the crushing roller 5 and the crushing blades 6 work together to improve the dispersing effect of the sludge; several crushing blades 6 are fixed on the crushing roller 5; the feed inlet 10 and the protective frame 7 are both located on the rear side of the crushing blades 6.
[0030] In this embodiment, the sludge dredging vehicle 1 is configured as a tracked drive. When the sludge dredging vehicle 1 moves, the crushing roller 5 is controlled to rotate, so that the crushing roller 5 drives the crushing blade 6 to rotate and break up the sludge.
[0031] The protective frame 7 of this invention includes a protective side rail 11 and a protective base plate 12; the protective side rail 11 has a cylindrical structure that is larger at the top and smaller at the bottom, and a plurality of first through slots are evenly opened on the protective side rail 11; the protective base plate 12 is fixed on the protective side rail 11, and a plurality of second through slots are evenly opened on the protective base plate 12, through which sludge enters the feed inlet 10; a rotating frame 13 is vertically arranged at the center of the upper end face of the protective base plate 12; a plurality of pairs of... The inner wall of the feed inlet 10 is cleaned by a cleaning scraper 14; the rotating frame 13 is inclined and fixedly connected to the protective base plate 12. When the protective frame 7 rotates, the sludge is initially broken up, and the rotating frame 13, the cleaning scraper 14 and the support rod 15 are rotated. The support rod 15 and the rotating frame 13 work together to stir the dirt inside the feed inlet 10. The protective frame 7, the feed inlet 10, the rotating frame 13, the cleaning scraper 14 and the support rod 15 are all provided with an anti-stick coating.
[0032] In this embodiment, when the protective frame 7 rotates, the protective side rail 11 causes the protective base plate 12 to rotate, allowing the sludge to enter the inner side of the protective frame 7 through the first and second through channels and into the feed inlet 10, where it is discharged by the sewage pump. When the protective frame 7 rotates, the protective base plate 12 causes the rotating frame 13 and support rod 15 to rotate, stirring the sludge in the feed inlet 10. The rotating frame 13 causes the cleaning scraper 14 to rotate, allowing the cleaning scraper 14 to scrape the sludge off the inner wall of the feed inlet 10, preventing dirt from adhering to the feed inlet 10.
[0033] The outer wall of the protective box 2 of the present invention is provided with a second protective box 8 connected to the rotating seat 9; the bottom end face of the rotating seat 9 is fitted with a rotating ring 16 fixed to the protective side rail 11; the rotating ring 16 is provided with a sealing ring 17 that rotates and seals with the rotating seat 9, and the rotating ring 16 and the rotating seat 9 are movably sealed to prevent external mud from entering the rotating seat 9; the sealing ring 17 is coaxially provided with a rotating toothed ring 18; the rotating seat 9 is provided with a rotating groove for the rotating toothed ring 18 to rotate.
[0034] In this embodiment, when the rotating toothed ring 18 rotates, it causes the sealing ring 17 to rotate, and the sealing ring 17 causes the rotating ring 16 to rotate on the rotating seat 9. The rotating ring 16 causes the protective side rail 11 to rotate, which in turn causes the protective side rail 11 to rotate the protective base plate 12.
[0035] The second protective box 8 of the present invention has a main gear 19 inside that meshes with the rotating gear ring 18; the second protective box 8 has a connecting groove that communicates with the rotating groove; the second protective box 8 has a first drive motor 20 inside that controls the rotation of the main gear 19; when the first drive motor 20 is started, the protective frame 7 rotates on the rotating seat 9 through the main gear 19 and the rotating gear ring 18, thereby stirring and cleaning the dirt inside the feed inlet 10 through the rotating frame 13, the cleaning scraper 14 and the support rod 15.
[0036] In this embodiment, the first drive motor 20 is started, which drives the main gear 19 to rotate, so that the main gear 19 drives the rotating gear ring 18 to rotate, and the rotating gear ring 18 drives the protective frame 7 to rotate through the sealing ring 17 and the rotating ring 16.
[0037] Example 2 Based on Example 1, referring to Figures 2-3 and Figures 6-8 This is the second embodiment of the present invention, wherein a first protective box 4 aligned with the second protective box 8 is installed on the front side of the protective box 2; the first protective box 4 is provided with two gas storage tanks 21, the gas storage tanks 21 storing clean gas; and an air supply pump 29 connected to the gas storage tanks 21 is installed on the inner bottom surface of the first protective box 4.
[0038] The bottom end of the first protective box 4 is fitted and connected to the upper end face of the second protective box 8. The air supply pump 29 is provided with an air injection pipe 30 that penetrates the first protective box 4 and extends into the second protective box 8 in a sealed manner. The second protective box 8 is provided with a pressure sensor, which is electrically connected to the air supply pump 29. A start value is set for the pressure sensor. When the pressure inside the second protective box 8 is lower than the start value, the air supply pump 29 is started. When the pressure inside the second protective box 8 reaches the start value, the air supply pump 29 is turned off. When the air supply pump 29 is working, it pressurizes the gas inside the gas storage tank 21 into the second protective box 8, so that the interior of the second protective box 8 and the rotating seat 9 are gas-sealed, thereby improving the sealing effect of the rotating seat 9.
[0039] In this embodiment, the air supply pump 29 is started to inject the clean gas inside the air storage tank 21 into the second protective box 8 through the air injection pipe 30, so that the clean gas enters the rotating seat 9 through the second protective box 8, forming a sealed space in the second protective box 8 and the rotating seat 9.
[0040] The outlet of the gas storage tank 21 of the present invention is equipped with a split adapter 22; the inlet of the air supply pump 29 is equipped with a main air pipe 25; the first protective box 4 is provided with a main adapter 23 connected to the main air pipe 25; the main adapter 23 is provided with a plurality of first branch air pipes 31 arranged in a circular array; the other end of the first branch air pipes 31 is connected to the split adapter 22.
[0041] In this embodiment, the gas supply pump 29 is started to draw gas through the main gas pipe 25, so that the gas in the gas storage tank 21 enters the main adapter 23 through the adapter 22, and the main adapter 23 guides the gas into the main gas pipe 25.
[0042] The first gas distribution pipe 31 of the present invention is provided with a gas valve 27; a rotating gear 33 is installed on the valve stem of the gas valve 27; a missing gear 28 is installed at the center of the upper end face of the main adapter 23; the upper end face of the main adapter 23 uses several transmission gears 32 that mesh with the rotating gear 33; the missing gear 28 can mesh with or disengage from the transmission gear 32; a second drive motor 26 is installed in the first protective box 4 to control the rotation of the missing gear 28; when the second drive motor 26 is started, the missing gear 28, the transmission gear 32 and the rotating gear 33 cooperate to open or close several gas storage tanks 21 in sequence, so that the air supply pump 29 can sequentially evacuate the gas storage tanks 21 at different positions, thereby improving the sealing effect of the second protective box 8 and the rotating seat 9.
[0043] In this embodiment, the gas supply pump 29 is started, so that the gas in the gas storage tank 21 enters the first gas distribution pipe 31 through the adapter 22. The first gas distribution pipe 31 guides the gas into the gas supply pump 29 through the main adapter 23 and the main gas pipe 25. The gas supply pump 29 guides the gas into the second protective box 8 through the gas injection pipe 30. After the gas in the gas storage tank 21 is evacuated, the second drive motor 26 is started, which drives the missing gear 28 to rotate. The missing gear 28 drives the transmission gear 32, and the transmission gear 32 drives the rotating gear 33 to rotate. The rotating gear 33 closes the gas valve 27 connected to the gas storage tank 21, and the missing gear 28 continues to rotate, opening the adjacent gas valve 27 to evacuate the adjacent gas storage tank 21.
[0044] The main adapter 23 of the present invention is vertically connected to a second air distribution pipe 35 on its outer side; an air valve 27 is provided on the second air distribution pipe 35; one end of the second air distribution pipe 35 is provided with an air extraction pipe 24 that penetrates the first protective box 4; a filter cover 34 aligned with the air extraction pipe 24 is installed on the upper surface of the first protective box 4. When the sludge dredging vehicle 1 is working, the filter cover 34 is isolated from the sludge. After the gas in the air storage tank 21 is used up, the sludge dredging vehicle 1 still performs sludge dredging, so that the air supply pump 29 performs external air extraction.
[0045] In this embodiment, after the gas in the two gas storage tanks 21 is completely used up, the second drive motor 26 is started, which drives the missing gear 28 to rotate, so that the missing gear 28 drives the transmission gear 32, and the transmission gear 32 drives the rotating gear 33 to rotate. The rotating gear 33 opens the gas valve 27 connected to the second gas distribution pipe 35, starts the gas supply pump 29, so that the main gas pipe 25 and the main adapter 23 draw gas from the outside through the gas extraction pipe 24, and the filter cover 34 filters the gas entering the gas extraction pipe 24.
[0046] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.
Claims
1. A well cleaning device, characterized in that, Also includes: The sludge removal vehicle has a rotating cutting blade on its front side for cutting waste and debris. The protective box is installed on the dredging vehicle and uses a sewage pump for dredging operations; The feed inlet is located at the bottom of the protective box and is connected to the sewage pump. A rotating seat is fitted onto the outside of the feed inlet and fixed to the protective box; The protective frame is rotatably mounted on the bottom surface of the rotating seat and prevents large pieces of waste from entering the feed inlet; The rotating frame, located at the center of the protective frame, agitates and cleans the internal dirt at the feed inlet.
2. The well cleaning equipment according to claim 1, characterized in that, The dredging vehicle is equipped with a mounting slot for installing a protective box; The top of the protective box is equipped with a sewage pipe that is connected to the sewage pump; The dredging vehicle is equipped with a pulverizing roller that rotates on it. Several of the aforementioned crushing blades are fixed on the crushing roller; Both the feed inlet and the protective frame are located on the rear side of the crushing cutter.
3. The well cleaning equipment according to claim 2, characterized in that, The protective frame includes: The protective side rail has a cylindrical structure that is wider at the top and narrower at the bottom, and several first through slots are evenly provided on the protective side rail; The protective base plate is fixed to the protective side rail and has several second through slots evenly distributed throughout. The rotating frame is vertically positioned at the center of the upper end face of the protective base plate; The rotating frame is equipped with several cleaning scrapers arranged in a circular array to clean the inner wall of the feed inlet; The rotating frame is inclined and has a support rod that is fixedly connected to the protective base plate. When the protective frame rotates, the support rod cooperates with the rotating frame to stir the dirt inside the feed inlet.
4. The downhole dredging equipment according to claim 3, characterized in that, The outer wall of the protective box is provided with a second protective box that is connected to the rotating seat; The bottom end face of the rotating seat is fitted with a rotating ring that is fixed to the protective side rail; The rotating ring is provided with a sealing ring that rotates and seals with the rotating seat; A rotating toothed ring is coaxially provided on the sealing ring; The rotating seat has a rotating groove for rotating the gear ring.
5. The well cleaning equipment according to claim 4, characterized in that, The second protective box has a main gear inside that meshes with the rotating gear ring; The second protective box has a connecting groove that communicates with the rotating groove; The second protective box is equipped with a first drive motor that controls the rotation of the main gear; When the first drive motor starts, the main gear and rotating gear ring cause the protective frame to rotate on the rotating seat, thereby stirring and cleaning the dirt inside the feed inlet through the rotating frame, cleaning scraper and support rod.
6. The well cleaning equipment according to claim 5, characterized in that, The front side of the protective box is equipped with a first protective box that is aligned with the second protective box. The first protective box contains several gas storage tanks; An air supply pump connected to an air tank is installed on the inner bottom surface of the first protective box.
7. The downhole dredging equipment according to claim 6, characterized in that, The bottom end of the first protective box is fitted and connected to the top surface of the second protective box; The air supply pump is equipped with an air injection pipe that penetrates the first protective box and is sealed to extend into the second protective box; When the air supply pump is working, it pressurizes the gas inside the air tank and sends it to the second protective box, thus sealing the interior of the second protective box and the rotating seat with gas.
8. The downhole dredging equipment according to claim 7, characterized in that, The gas storage tank is equipped with a taper connector at its outlet. The air inlet of the air supply pump is equipped with a main air pipe; The first protective box is equipped with a main adapter that connects to the main air pipe; The main adapter is provided with several first air distribution pipes arranged in a circular array; The other end of the first gas splitter is connected to the adapter.
9. A well cleaning device according to claim 8, characterized in that, The first gas distribution pipe is equipped with a gas valve; A rotating gear is installed on the valve stem of the air valve; A missing gear is installed at the center of the upper end face of the main adapter; The upper end face of the main adapter uses several transmission gears that mesh with the rotating gears; The missing gear can engage or disengage with the transmission gear; The first protective box is equipped with a second drive motor that controls the rotation of the missing gear; When the second drive motor starts, it sequentially opens or closes several gas tanks through the cooperation of the missing gear, transmission gear and rotating gear.
10. A well cleaning device according to claim 9, characterized in that, The outer side of the main adapter is vertically connected to a second gas distribution pipe; The air valve is installed on the second air distribution pipe; One end of the second air distribution pipe is provided with an air extraction pipe that penetrates the first protective box; The upper surface of the first protective box is fitted with a filter cover that is aligned with the exhaust pipe.
