A mud negative pressure cleaning device

Abstract

The application discloses a mud negative pressure cleaning device, which comprises a Roots power driving system, a cooling device, a vacuum pipeline, an automatic discharging system and a dredging power head device, the Roots power driving system is connected with the cooling device, and the cooling device is used for cooling the Roots power driving system; the dredging power head device is connected with the automatic discharging system through a pipeline, the automatic discharging system is connected with the Roots power driving system through the vacuum pipeline, vacuum suction force generated by the Roots power driving system is transmitted to the automatic discharging system through the vacuum pipeline, and then is transmitted to the dredging power head device to adsorb and recycle mud. The mud dredged by the dredging power head device is transported to the automatic discharging system under the action of the vacuum suction force through the pipeline, and discharging is completed.

Description

Technical Field

[0001] This invention belongs to the technical field of mud tank cleaning equipment, specifically relating to a mud negative pressure cleaning device. Background Technology

[0002] In drilling and other operations, it is often necessary to clean the sediment inside the mud tank. Traditional methods involve entering the mud tank and using basins or buckets to scoop out the thinner sediments, while using shovels to remove the harder sediments. However, due to the limited space, polluted air, and harsh working environment inside the mud tank, it is difficult to work inside for extended periods, resulting in poor cleaning effectiveness and low efficiency. Furthermore, the harmful gases produced by the mud during operation pose a threat to the health and safety of workers, ultimately making the cleaning of mud tanks extremely tedious.

[0003] Existing tank sludge cleaning equipment uses negative pressure suction pipes to remove sludge. Sludge is a solid-liquid mixture, not a solution, and sediment will form after standing for a period of time. Current sludge cleaning equipment simply uses a vacuum pump connected to pipes for cleaning. However, when larger pieces of sludge or mud clump together, existing pipes often cannot effectively clean them. If the suction port of the hose is only located in one place inside the tank, the sediment is difficult to move after the liquid phase is pumped out, making it impossible to completely remove the sediment. Furthermore, the adsorbed sludge cannot be processed in a timely manner, leading to pipe blockage. In addition, while adsorbing sludge, impurities in the sludge move with the pipes into the negative pressure generating equipment, causing damage. This reduces the overall lifespan of the equipment and increases maintenance costs. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a mud negative pressure cleaning device with high integration and good cleaning effect, which has the function of simultaneously adsorbing solid and liquid phases.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a mud negative pressure cleaning device, comprising a Roots power drive system, a cooling device, a vacuum pipeline, an automatic discharge system, and a dredging power head device. The Roots power drive system is connected to the cooling device, which cools the Roots power drive system. The dredging power head device is connected to the automatic discharge system through a pipeline, and the automatic discharge system is connected to the Roots power drive system through a vacuum pipeline. The vacuum suction generated by the Roots power drive system is then transmitted to the automatic discharge system through the vacuum pipeline, and then to the dredging power head device for adsorption and recovery of the mud. The mud dredged by the dredging power head device is transported to the automatic discharge system through the pipeline under the action of vacuum suction to complete the discharge.

[0006] Preferably, the Roots power drive system includes a drive system housing, which houses a Roots vacuum pump, a drive motor, a buffer tank, a first drive housing pipe, and a second drive housing pipe. The drive motor is connected to the Roots vacuum pump, the Roots vacuum pump is connected to the buffer tank via the first drive housing pipe, the buffer tank is connected to the vacuum pipe, one end of the second drive housing pipe is connected to the Roots vacuum pump, and the other end of the second drive housing pipe extends out of the drive system housing. The vacuum suction force generated by the drive motor driving the Roots vacuum pump is transmitted to the buffer tank, and then sequentially through the vacuum pipe and the automatic discharge system before being transmitted to the dredging power head device.

[0007] Preferably, the buffer tank includes a buffer tank body, and a buffer plate is provided inside the buffer tank body. The buffer plate is arranged at an angle inside the buffer tank body and is in the form of a folding mechanism. The buffer tank body is provided with a buffer tank inlet pipe and a buffer tank outlet pipe. The end of the buffer tank inlet pipe is connected to a vacuum pipe, and the vacuum suction force is transmitted to the vacuum pipe through the buffer tank inlet pipe. The buffer tank outlet pipe is located at the bottom of the buffer tank body and is used to discharge the slurry accumulated inside the buffer tank body.

[0008] Preferably, a Y-type filter is installed on the first pipe of the drive housing, which can filter objects flowing through the first pipe of the drive housing.

[0009] Preferably, the drive system housing is provided with two drive system housing doors, both of which are rotatably connected to the drive system housing, and the two oppositely arranged drive system housing doors form a double door structure.

[0010] Preferably, a housing connector is installed between the drive system housing and the drive system housing door. The housing connector includes a housing connecting rod, a housing connecting rod head, a housing connecting seat, a housing door guide, a housing connector handle, a housing door base, and a housing door base fixing component. Both ends of the housing connecting rod are fixedly connected to the housing connecting rod head, and the housing connecting rod head abuts against the housing connecting seat. The housing connecting seat is fixedly connected to the drive system housing. The housing door guide has a "U"-shaped cross-section and is fixedly connected to the drive system housing door. The housing connecting rod passes through the housing door guide. The end of the housing connector handle is sleeved on and fixedly connected to the housing connecting rod. The housing door base is fixed to the drive system housing door. The housing door base fixing component is connected to the housing door base by bolts. The other end of the housing connector handle is located between the housing door base fixing component and the housing door base.

[0011] Preferably, the cooling device includes a main cooling unit and a frequency converter control cabinet, with the frequency converter control cabinet electrically connected to the main cooling unit.

[0012] Preferably, the automatic discharge system includes a discharge frame, a discharge hopper in the middle of the discharge frame, a unloader and a unloading motor installed at the bottom, the unloading motor being connected to the unloader and driving the unloader to work; a first discharge pipe is provided at the top of the discharge hopper, and a second discharge pipe is provided at the top of the discharge hopper, the first discharge pipe being connected to the dredging power head device, and the second discharge pipe being connected to the vacuum pipeline.

[0013] Preferably, the dredging power head device includes a spiral cutter, a suction device, a pneumatic motor, an air pipe, a water pipe, and a negative pressure pipe. The spiral cutter is connected to the pneumatic motor, which is located inside the suction device. The air pipe passes through the top of the suction device and is connected to the pneumatic motor. The water pipe is located at the top of the suction device. The negative pressure pipe is connected to the end of the suction device and is connected to the first discharge pipe. The mud dredged by the spiral cutter is transported to the automatic discharge system by the negative pressure pipe after passing through the suction device.

[0014] Preferably, a spiral cutter gear is installed at the end of the spiral cutter, and a pneumatic motor gear is installed at the shaft end of the pneumatic motor, with the pneumatic motor gear meshing with the spiral cutter gear.

[0015] The beneficial effects of this invention are:

[0016] 1. The mud negative pressure cleaning device provided by this invention effectively solves the problem of traditional mud suction devices, which require the rubber hose to be inserted into the mud tank. The mud becomes thicker towards the bottom, necessitating constant movement of the suction nozzle to ensure complete mud suction. Furthermore, if the mud solidifies, additional crushing equipment is required for extraction, resulting in low production efficiency.

[0017] 2. This invention integrates multiple functions such as crushing and adsorption cleaning, exhibiting high integration and wide application range. The invention uses a pneumatic motor to drive the spiral head to rotate, which can crush solidified mud blocks, while the negative pressure suction port provides the cleaning effect.

[0018] 3. This invention features low noise, strong recovery capability, and a consistently low operating temperature, ensuring reliable equipment performance. It can completely recover liquid materials, utilizing high vacuum recovery capabilities to collect all on-site cleanup materials, which are then collected into a material container via an external automatic unloading system. This avoids environmental pollution and health hazards to on-site workers during the collection process.

[0019] 4. This invention has strong field operation capabilities, and its excellent recycling performance makes it suitable for large-scale recycling and cleanup construction sites.

[0020] 5. This invention is equipped with a safety valve on the negative pressure suction pipeline, which ensures automatic pressure relief during normal operation when exhaust and suction are severely obstructed. This ensures the service life of the vacuum pump. The machine has undergone overall noise reduction treatment to minimize the impact of noise on operators.

[0021] 6. The main components of this invention are reliable in performance, have a long service life, and are easy to maintain and replace.

[0022] 7. The noise generated by the vacuum pump of the present invention is reduced by perforated plates, rock wool and sound-absorbing plates arranged from the inside to the outside of the housing wall panel.

[0023] 8. The Roots power drive system of the present invention has undervoltage, phase loss and phase sequence protection functions.

[0024] 9. The drive motor of the present invention is equipped with an overload protection device and an overheat protection device, which effectively protects the explosion-proof motor.

[0025] 10. The buffer tank of this invention is equipped with a float level gauge to prevent material from entering the vacuum pump. When the liquid level acts on the float, the float switch cuts off the Roots vacuum pump. The float can only be reset after the buffer tank is cleaned, and the vacuum pump can then be used normally. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a mud negative pressure cleaning device according to the present invention;

[0027] Figure 2 This is a schematic diagram of the drive system housing structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of the drive system housing of the present invention;

[0029] Figure 4 This is a schematic diagram of the handle connection of the housing connector of the present invention;

[0030] Figure 5 This is a schematic diagram of the end structure of the box connector of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the buffer box of the present invention;

[0032] Figure 7 This is a schematic diagram of the internal structure of the buffer box of the present invention;

[0033] Figure 8 This is a schematic diagram of the automatic material discharge system of the present invention;

[0034] Figure 9 This is a schematic diagram showing the connection between the discharge motor and the discharge agitator of the present invention;

[0035] Figure 10 This is a schematic diagram of the dredging power head device according to Embodiment 1 of the present invention;

[0036] Figure 11 This is a schematic diagram of the internal structure of the dredging power head device according to Embodiment 1 of the present invention;

[0037] Figure 12 This is a schematic diagram of the dredging power head device according to Embodiment 2 of the present invention;

[0038] Figure 13 This is a schematic diagram of the connection between the dredging pneumatic motor and the dredging auger in Embodiment 2 of the present invention;

[0039] Figure 14 This is a schematic diagram of the internal structure of the drive housing according to Embodiment 2 of the present invention.

[0040] Figure 15 This is a schematic diagram of the dredging power device according to Embodiment 3 of the present invention;

[0041] Figure 16 This is a schematic diagram of the internal structure of the dredging power device in Embodiment 3 of the present invention.

[0042] Explanation of reference numerals in the attached drawings: 1. Roots-driven power system; 2. Cooling device; 3. Vacuum pipe; 4. Automatic discharge system; 5. Dredging power head device; 10. Drive system housing; 11. Roots vacuum pump; 12. Drive motor; 13. Buffer tank; 14. First pipe of drive housing; 15. Second pipe of drive housing; 16. Housing connector; 21. Air-cooled water tank; 22. Variable frequency control cabinet; 41. Discharge frame; 42. Discharge bucket; 43. Unloader; 44. Unloader motor; 45. First discharge pipe; 46. Second discharge pipe; 51. Spiral cutter; 52. Suction device; 53. Pneumatic motor; 54. Air pipe; 55. Water pipe; 56. Negative pressure pipe; 61. Dredging module; 62. Drive module; 130. Buffer housing; 131. Buffer plate; 132. Buffer housing inlet pipe; 133. Buffer housing discharge pipe; 16 0. Box body connecting rod; 161. Box body connecting rod head; 162. Box body connecting seat; 163. Box body door guide; 164. Box body connecting handle; 165. Box body door base; 166. Box body door base fixing component; 610. Dredging box body; 611. Dredging pneumatic motor; 612. Dredging auger; 613. Dredging box body mudguard; 620. Drive box body; 621. Drive pneumatic motor; 622. Drive 623. Drive sprocket; 624. Negative pressure suction pipe for dredging box; 625. Lifting cylinder for dredging box; 626. Lifting dredging box connecting rod; 627. Tensioning device; 628. Chain; 6101. Pneumatic quick connector; 6201. Guide component for dredging box; 6261. Guide rod for drive box; 6262. Tensioning fixing block; 6263. Tensioning slider; 6271. Inner link of chain; 6272. Outer link of chain. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0044] Example 1

[0045] like Figures 1 to 11 As shown, the present invention provides a mud negative pressure cleaning device, comprising a Roots power drive system 1, a cooling device 2, a vacuum pipeline 3, an automatic discharge system 4, and a dredging power head device 5. The Roots power drive system 1 is connected to the cooling device 2, which cools the Roots power drive system 1. The dredging power head device 5 is connected to the automatic discharge system 4 via a pipeline, and the automatic discharge system 4 is connected to the Roots power drive system 1 via the vacuum pipeline 3. The vacuum suction generated by the Roots power drive system 1 is then transmitted to the automatic discharge system 4 via the vacuum pipeline 3, and then to the dredging power head device 5 for adsorption and recovery of the mud. The mud dredged by the dredging power head device 5 is transported to the automatic discharge system 4 through the pipeline under the action of vacuum suction, completing the discharge.

[0046] like Figures 2 to 5 The Roots-driven power system 1 shown includes a drive system housing 10, which houses a Roots-type vacuum pump 11, a drive motor 12, a buffer tank 13, a first drive housing pipe 14, and a second drive housing pipe 15. The drive motor 12 is connected to the Roots-type vacuum pump 11, and the Roots-type vacuum pump 11 is connected to the buffer tank 13 via the first drive housing pipe 14. The buffer tank 13 is connected to a vacuum pipe 3, and one end of the second drive housing pipe 15 is connected to the Roots-type vacuum pump 11, while the other end of the second drive housing pipe 15 extends out of the drive system housing 10. The vacuum suction force generated by the drive motor 12 driving the Roots-type vacuum pump 11 is transmitted to the buffer tank 13, then sequentially through the vacuum pipe 3 and the automatic discharge system 4, before being transmitted to the dredging power head device 5.

[0047] In this embodiment, the power of the Roots vacuum pump 11 is 70-132 kW, which is adjustable. A 132 kW single-stage dry counter-current cooled Roots vacuum pump is preferred. Gas flow rate: >60 m³ / min, vacuum degree: -0.08 MPa, working radius: 10-50 meters.

[0048] The impeller and cylinder of the Roots vacuum pump 11 are made of HT250 wear-resistant material, with a long service life (>100,000 hours). The drive motor 12 is an explosion-proof variable frequency motor with adjustable power. The drive motor 12 is directly connected to the Roots vacuum pump 11, ensuring smooth operation and high efficiency. Reversing the drive motor 12 enables the entire equipment to perform backwashing, facilitating maintenance.

[0049] like Figure 6 and Figure 7 As shown, the buffer tank 13 includes a buffer tank body 130, and a buffer plate 131 is provided inside the buffer tank body 130. The buffer plate 131 is arranged obliquely inside the buffer tank body 130 and is in a folding mechanism. The buffer tank body 130 is provided with a buffer tank inlet pipe 132 and a buffer tank outlet pipe 133. The end of the buffer tank inlet pipe 132 is connected to the vacuum pipe 3, and the vacuum suction force is transmitted to the vacuum pipe 3 through the buffer tank inlet pipe 132. The buffer tank outlet pipe 133 is located at the bottom of the buffer tank body 130 and is used to discharge the slurry accumulated inside the buffer tank body 130.

[0050] In this embodiment, the discharge pipe 133 of the buffer tank is a normally closed structure, thus ensuring the airtightness of the buffer tank 13. Simultaneously, there are multiple buffer plates 131 arranged in an alternating vertical distribution. After the slurry enters the buffer tank 13 under the action of vacuum adsorption, it is deposited at the bottom of the buffer tank 13 by the isolation effect of the buffer plates 131, facilitating recovery. The buffer tank 13 in this invention has a simple and reliable structure, and its internal design employs a folding-back design to ensure a large throughput while minimizing the entry of slurry into the vacuum pump. The sedimentation tank design facilitates drainage and slurry cleaning. The buffer tank body 130 is equipped with a buffer tank door, which is rotatably connected to the buffer tank body 130.

[0051] A Y-type filter is installed on the first pipe 14 of the drive housing. The Y-type filter can filter objects flowing through the first pipe 14 of the drive housing. In this embodiment, the Y-type filter is an existing filtration device, and the internal filter element can be cleaned and replaced according to actual use needs.

[0052] The drive system housing 10 is equipped with two drive system housing doors 101, both of which are rotatably connected to the drive system housing 10. The two opposing drive system housing doors 101 form a double-door structure. When maintenance or inspection is required, only the drive system housing door 101 needs to be opened.

[0053] The drive system enclosure 10 consists of enclosure wall panels, a top cover, and a drive system enclosure door 101. The enclosure wall panels are arranged with perforated plates, rock wool, and sound-absorbing panels from the inside to the outside, thereby enabling the drive system enclosure 10 to have sound absorption and noise reduction functions.

[0054] A housing connector 16 is installed between the drive system housing 10 and the drive system housing door 101. The housing connector 16 includes a housing connecting rod 160, a housing connecting rod head 161, a housing connecting seat 162, a housing door guide 163, a housing connector handle 164, a housing door base 165, and a housing door base fixing member 166. The two ends of the housing connecting rod 160 are respectively fixedly connected to the housing connecting rod head 161, and the housing connecting rod head 161 abuts against the housing connecting seat 162. The housing connecting seat 165 is fixedly connected to the drive system housing 10. The housing door guide 163 has a "U"-shaped cross-section and is fixedly connected to the drive system housing door 101. The housing connecting rod 160 passes through the housing door guide 163. The end of the housing connector handle 164 is sleeved on the housing connector rod 160 and fixedly connected. The housing door base 165 is fixed on the drive system housing door 101. The housing door base fixing piece 166 is connected to the housing door base 165 by bolts. The other end of the housing connector handle 164 is located between the housing door base fixing piece 166 and the housing door base 165.

[0055] In this embodiment, the housing connecting seat 162 has a cuboid structure, and its end protrudes outward to form a housing connecting seat protrusion. The cross-section of the housing connecting seat protrusion is T-shaped. The housing connecting rod head 161 includes a housing connecting rod head body and a housing connecting rod head connecting block that are fixedly connected together. The housing connecting rod head body has a conical structure, and its bottom is fitted onto and fixedly connected to the end of the housing connecting rod 160. The end of the housing connecting rod head connecting block is bent and a through groove is formed in the middle, thus making the housing connecting rod head connecting block have an n-shaped structure. The housing connecting seat protrusion is located within the through groove. In use, loosen the bolts and rotate the housing door base fixing piece 166. The operator then rotates the housing connector handle 164, causing the housing connecting rod head 161 to rotate synchronously. As the housing connecting rod head connecting block rotates, it gradually moves away from the housing connecting seat protrusion. Pulling the housing connector handle 164 then opens the drive system housing door 101. To close the drive system housing door 101, simply reverse the above steps.

[0056] The drive system enclosure 10 is an enclosure structure. The wall panels and doors 101 constituting the drive system enclosure 10 are designed with sound-absorbing cotton and perforated panels, providing noise reduction and sound insulation. Two drive system enclosure doors 101 form a double door (two pairs), and a single drive system enclosure door 101 forms a single door (one leaf). Both single and double doors can be opened 270 degrees, facilitating maintenance and featuring a compact structure.

[0057] The cooling device 2 includes a main cooling unit 21 and a variable frequency control cabinet 22, which is electrically connected to the main cooling unit 21. The main cooling unit 21 is an existing cooling device, and depending on the actual usage environment, it can be an air-cooled device, a water-cooled device, an oil-cooled device, or other types of equipment to achieve different cooling methods. In this embodiment, the main cooling unit 21 is an existing air-cooled water chiller, model 1HP, used to cool the Roots blower's Roots power drive system 1.

[0058] In this embodiment, all electrical equipment is electrically connected to the frequency converter control cabinet 22, and its operation is controlled by the frequency converter control cabinet 22. The frequency converter control cabinet 22 is an explosion-proof control cabinet with a 160kW brand frequency converter. A position sensor is installed inside the buffer tank 130, which is electrically connected to the drive motor 12. When the liquid level inside the buffer tank 130 reaches the calibrated position, the drive motor 12 is stopped to prevent liquid from entering the vacuum pump. In this embodiment, the position sensor is a float level gauge. The float level gauge prevents material from entering the vacuum pump. When the liquid level acts on the float, the float switch cuts off the control of the drive motor 12 that moves the Roots vacuum pump 11. The float can only be reset after the buffer tank is cleaned, and the vacuum pump can then be used normally.

[0059] A safety valve is installed on vacuum pipeline 3 to ensure the air pressure safety of the entire equipment, thereby increasing the safety and stability of the entire equipment and avoiding dangerous situations caused by air pressure fluctuations exceeding the set value.

[0060] like Figure 8 and Figure 9 As shown, the automatic discharge system 4 includes a discharge frame 41, with a discharge hopper 42 in the middle of the frame. A discharge device 43 and a discharge motor 44 are installed at the bottom of the discharge hopper 42. The discharge motor 44 is connected to the discharge device 43 and drives it to operate. A first discharge pipe 45 is located at the top of the discharge hopper 42, and a second discharge pipe 46 is located at the top. The first discharge pipe 45 is connected to the dredging power head device 5, and the second discharge pipe 46 is connected to the vacuum pipe 3.

[0061] The bottom of the discharge bucket 42 is open. After the mud enters the discharge bucket 42 through the first discharge pipe 45, it is discharged from the bottom of the discharge bucket 42 and recycled under the operation of the unloading motor 44 driving the unloader 43.

[0062] In this embodiment, the unloader 43 is an existing device. In actual use, the bottom of the discharge tank 42 is connected to an atmospheric pressure tank, and the unloader 43 unloads the slurry in the negative pressure environment inside the discharge tank 42 into the atmospheric pressure tank by rotating. The unloader 43 has a certain sealing effect, which can maintain the negative pressure environment inside the discharge tank 42.

[0063] like Figure 10 and Figure 11As shown, the dredging power head device 5 includes a spiral cutter 51, a suction device 52, a pneumatic motor 53, an air pipe 54, a water pipe 55, and a negative pressure pipe 56. The spiral cutter 51 is connected to the pneumatic motor 53, which is located inside the suction device 52. The air pipe 54 passes through the top of the suction device 52 and is connected to the pneumatic motor 53. The water pipe 55 is located at the top of the suction device 52. The negative pressure pipe 56 is connected to the end of the suction device 52 and is also connected to the first discharge pipe 45. The dredged mud by the spiral cutter 51 is transported to the automatic discharge system 4 by the negative pressure pipe 56 after passing through the suction device 52.

[0064] The end of the spiral cutter 51 is equipped with a spiral cutter gear, and the shaft end of the pneumatic motor 53 is equipped with a pneumatic motor gear, which meshes with the spiral cutter gear. During operation, the spiral cutter 51 can transport slurry into the suction device 52.

[0065] Water pipe 55 is connected to the existing water source equipment. Water is provided to the spiral cutter 51 during crushing, which makes the crushing process of the spiral cutter 51 smoother. At the same time, it can dilute and soften the mud that needs to be crushed.

[0066] Traditional methods of pumping mud from mud tanks require inserting a rubber hose into the tank. The mud becomes thicker towards the bottom, necessitating constant movement of the suction nozzle to ensure complete removal. Solidified mud must also be broken up for pumping. This equipment solves this problem effectively with its dredging power head. The device uses a pneumatic motor to drive a rotating auger, breaking up solidified mud clumps, while the negative pressure suction port provides the necessary cleaning.

[0067] The drive motor 12, the air-cooled water tank 21, and the discharge motor 43 are all electrically connected to the frequency converter control cabinet 22. At the same time, all electric devices in this invention are electrically connected to the frequency converter control cabinet 22 for unified control.

[0068] The pneumatic motor 53 is connected to the existing air source equipment through a pipeline. At the same time, all the pneumatic equipment in this invention is connected to the air source equipment through pipelines, thereby realizing the unified operation of the pneumatic equipment.

[0069] Example 2

[0070] The difference between this embodiment and embodiment one is that the dredging power head device 5 is different, while the structure of the other components is the same.

[0071] like Figures 12 to 14As shown, the dredging power head device 5 in this embodiment includes a dredging module 61 and a drive module 62. The dredging module 61 includes a dredging housing 610, a dredging pneumatic motor 611, and a dredging auger 612. The dredging pneumatic motor 611 is located at the top of the dredging housing 610, and the dredging auger 612 is located at the bottom of the dredging housing 610. The dredging pneumatic motor 611 is connected to the dredging auger 612, and when the dredging pneumatic motor 611 is working, it drives the dredging auger 612 to rotate. The drive module 62 includes a drive housing 620, which has an internal partition dividing it into a first chamber and a second chamber. A drive pneumatic motor 621 is installed in the first chamber. A drive sprocket 622 is installed on the side of the drive housing 620 and is fitted onto the shaft end of the drive pneumatic motor 621. When the drive pneumatic motor 621 operates, it drives the drive sprocket 622 to rotate. A negative pressure suction pipe 623 is installed on the top of the drive housing 620 and communicates with the first chamber. A housing lifting cylinder 624 is installed at the end of the drive housing 620. The piston rod end of the housing lifting cylinder 624 is connected to a lifting housing connecting rod 625, and the end of the lifting housing connecting rod 625 is fixedly connected to the dredging housing 610.

[0072] In this embodiment, the dredging pneumatic motor 611, the drive pneumatic motor 621, and the box negative pressure suction pipe 623 are connected to the first discharge pipe 45. The box lifting cylinder 624 is connected to an existing air source device via a pipeline. The air source device includes an air compressor, etc., capable of generating vacuum suction force and high-pressure thrust. The air source device controls the operation of the dredging pneumatic motor 611, the drive pneumatic motor 621, and the box negative pressure suction pipe 623 respectively through the pipeline.

[0073] The mud to be cleaned is recovered through the negative pressure suction pipe 623 of the box under the combined action of the dredging spiral cutter 612 and the air adsorption force inside the box.

[0074] A pneumatic motor 621 and a drive sprocket 622 constitute a drive unit. Two drive units are installed in parallel inside the drive housing 620, and adjacent drive units are connected by a chain 627. The chain 627 includes an inner chain link 6271 and an outer chain link 6272 fixed together. The inner chain link 6271 is sleeved on and engaged with the drive sprocket 622, and the cross-section of the outer chain link 6272 is U-shaped. By setting a U-shaped outer chain link 6272 outside the inner chain link 6271, the chain 627 can better grip the ground during movement, increasing stability and preventing slippage.

[0075] The present invention drives the pneumatic motor 621 to drive the drive sprocket 622 to rotate, thereby causing the chain 627 to move and driving the entire device to move.

[0076] A tensioning device 626 is installed on the side of the drive housing 620. The tensioning device 626 includes a tensioning fixing block 6261, a tensioning slider 6262, and a tensioning wheel 6263. The tensioning fixing block 6261 is fixedly connected to the drive housing 620. The tensioning slider 6262 is connected to the tensioning fixing block 6261 by bolts. The tensioning wheel 6263 is rotatably connected to the tensioning slider 6262.

[0077] If the chain 627 becomes loose during use, the position of the tension wheel 6263 can be adjusted so that the tension wheel 6263 engages with the chain 627, thereby supporting the chain 627 and keeping the chain 627 in a taut state.

[0078] The tensioning block 6261 has a threaded hole, and the tensioning slider 6262 is a rectangular plate structure. The tensioning slider 6262 has two parallel oblong holes along its long side. Bolts pass through these oblong holes, and the ends of the bolts engage with the threaded holes on the tensioning block 6261, thus fixing the tensioning slider 6262 to the tensioning block 6261. When the position of the tensioning slider 6262 needs to be adjusted, simply loosen the bolts, adjust their position in the oblong holes, and then tighten them again to complete the position adjustment. A rotating shaft passes through the center of the tensioning wheel 6263, and the rotating shaft is fixed to the end of the tensioning slider 6262, allowing the tensioning wheel 6263 to rotate around the rotating shaft.

[0079] A drive housing guide rod 6201 is installed at the front end of the drive housing 620, and a dredging housing guide 610 is provided on the dredging housing 610. The drive housing guide rod 6201 passes through the dredging housing guide 6101, and the dredging housing guide 6101 is slidably connected to the drive housing guide rod 6201.

[0080] The dredging box guide 6101 has a plate-shaped bent structure, and the end of the dredging box guide 6101 is bent into a "U" shape. The side of the drive box guide rod 6201 is located inside the bent part of the dredging box guide 6101.

[0081] When the lifting cylinder 624 operates, it drives the lifting box connecting rod 625 to move, thereby causing the dredging box 610 to move up and down synchronously. The cooperation between the drive box guide rod 6201 and the dredging box guide component 6101 makes the movement of the dredging box 610 more stable.

[0082] The first chamber has an open end, through which mud enters. During the rotation of the dredging auger 612 driven by the dredging pneumatic motor 611, the mud is collected and cleaned by the combined action of the dredging auger 612 and the negative pressure suction pipe 623 of the housing. The dredging auger 612 of this invention includes a dredging auger column and dredging auger blades, with the auger blades wound around the dredging auger column. The dredging pneumatic motor 611 is connected to the end of the dredging auger column via a coupling.

[0083] In this embodiment, a transmission gear is fitted on the dredging auger cutter column, and there are two dredging auger cutters 612 arranged in parallel. Adjacent dredging auger cutters 612 are meshed with gears, which greatly increases the efficiency of mud cleaning.

[0084] The drive housing 620 is equipped with a pneumatic quick-connect fitting 628, which is connected to the drive pneumatic motor 621. The pneumatic quick-connect fitting 628 is connected to an existing air source device to drive the pneumatic motor 621.

[0085] Two parallel lifting cylinders 624 are provided for the dredging box 610, which increases the stability of its movement. A mudguard 613 with a bent structure is provided at the bottom of the dredging box 610. The mudguard 613 prevents mud from being thrown out of the dredging box 610 during the sludge collection process when the dredging auger 612 rotates, thus avoiding low efficiency of the entire equipment.

[0086] Example 3

[0087] The difference between this embodiment and embodiment one is that the dredging power head device 5 is different, while the structure of the other components is the same.

[0088] like Figures 15 to 16 As shown, the dredging power head device 5 of this embodiment includes a single spiral outer cylinder 71 and a single spiral suction pipe 72 connected thereto. The single spiral outer cylinder 71 houses a single spiral blade 73, a single spiral fixing frame 74, and a single spiral pneumatic motor 75. The single spiral pneumatic motor 75 is connected to the single spiral fixing frame 74, and its output end is connected to the single spiral blade 73. When the single spiral pneumatic motor 75 is working, it drives the single spiral blade 73 to rotate. The single spiral pneumatic motor 75 is connected to an existing external air source device through a pipe, and the single spiral suction pipe 72 is connected to the first discharge pipe 45.

[0089] The single-spiral fixing frame 74 has a circular structure with a through hole in the center. The shaft of the single-spiral pneumatic motor 75 passes through the through hole and connects to the spiral blade 73. The spiral blade 73 includes a spiral blade shaft and spiral blades, which are arranged in a circumferential array on the spiral blade shaft. The spiral blade shaft is connected to the output end of the single-spiral pneumatic motor 75. When the single-spiral blade 73 rotates, the slurry is drawn into the first discharge pipe 45 through the single-spiral suction pipe 72 under the action of the single-spiral blade 73.

[0090] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of the invention, and should be understood that the scope of protection of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the technical teachings disclosed in this invention without departing from the spirit of the invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A mud negative pressure cleaning device, characterized in that: The system includes a Roots power drive system (1), a cooling device (2), a vacuum pipe (3), an automatic discharge system (4), and a dredging power head device (5). The Roots power drive system (1) is connected to the cooling device (2), which cools the Roots power drive system (1). The dredging power head device (5) is connected to the automatic discharge system (4) through a pipe. The automatic discharge system (4) is connected to the Roots power drive system (1) through the vacuum pipe (3). The vacuum suction generated by the Roots power drive system (1) is then transmitted to the automatic discharge system (4) through the vacuum pipe (3), and then to the dredging power head device (5) to adsorb and recover the mud. The mud dredged by the dredging power head device (5) is transported to the automatic discharge system (4) through the pipe under the action of vacuum suction to complete the discharge. The Roots power drive system (1) includes a drive system housing (10), which contains a Roots vacuum pump (11), a drive motor (12), a buffer tank (13), a first drive housing pipe (14), and a second drive housing pipe (15). The drive motor (12) is connected to the Roots vacuum pump (11), the Roots vacuum pump (11) is connected to the buffer tank (13) through the first drive housing pipe (14), the buffer tank (13) is connected to the vacuum pipe (3), the end of the second drive housing pipe (15) is connected to the Roots vacuum pump (11), and the other end of the second drive housing pipe (15) extends out of the drive system housing (10). The vacuum suction force generated by the drive motor (12) driving the Roots vacuum pump (11) is transmitted to the buffer tank (13), and then through the vacuum pipe (3) and the automatic discharge system (4) in sequence, and then transmitted to the dredging power head device (5). The buffer tank (13) includes a buffer tank body (130), and a buffer plate (131) is provided inside the buffer tank body (130). The buffer plate (131) is arranged at an angle inside the buffer tank body (130) and is in the form of a folding mechanism, that is, there are multiple buffer plates (131) and they are distributed alternately up and down. The buffer tank body (130) is provided with a buffer tank inlet pipe (132) and a buffer tank outlet pipe (133). The end of the buffer tank inlet pipe (132) is connected to the vacuum pipe (3), and the vacuum adsorption force is transmitted to the vacuum pipe (3) through the buffer tank inlet pipe (132). The buffer tank outlet pipe (133) is located at the bottom of the buffer tank body (130) and is used to discharge the slurry accumulated inside the buffer tank body (130).

2. The mud negative pressure cleaning device according to claim 1, characterized in that: A Y-type filter is installed on the first pipe (14) of the drive housing, which can filter objects flowing through the first pipe (14) of the drive housing.

3. The mud negative pressure cleaning device according to claim 1, characterized in that: The drive system housing (10) is provided with a drive system housing door (101). There are two drive system housing doors (101), and both are rotatably connected to the drive system housing (10). The two drive system housing doors (101) arranged opposite each other form a double door structure.

4. The mud negative pressure cleaning device according to claim 3, characterized in that: A box connector (16) is installed between the drive system box body (10) and the drive system box door (101). The box connector (16) includes a box connecting rod (160), a box connecting rod head (161), a box connecting seat (162), a box door guide (163), a box connector handle (164), a box door base (165) and a box door base fixing member (166). The two ends of the box connecting rod (160) are respectively fixedly connected to the box connecting rod heads (161), and the box connecting rod heads (161) are abutted against the box connecting seats (162). The box connecting seat (165) is fixedly connected to the drive system box body (10). The cross-section of the box door guide (163) is in a "C" shape structure, and the box door guide (163) is fixedly connected to the drive system box door (101). The box connecting rod (160) is passed through the box door guide (163). The end of the box connector handle (164) is sleeved on the box connecting rod (160) and fixedly connected. The box door base (165) is fixed on the drive system box door (101). The box door base fixing member (166) is connected to the box door base (165) by bolts. The other end of the box connector handle (164) is located between the box door base fixing member (166) and the box door base (165).

5. The mud negative pressure cleaning device according to claim 1, characterized in that: The cooling device (2) includes a cooling main equipment (21) and a variable frequency electric control cabinet (22), and the variable frequency electric control cabinet (22) is electrically connected to the cooling main equipment (21).

6. The mud negative pressure cleaning device according to claim 1, characterized in that: The automatic discharging system (4) includes a discharging rack (41). There is a discharging barrel (42) in the middle of the discharging rack (41). A discharging device (43) and a discharging motor (44) are installed at the bottom of the discharging barrel (42). The discharging motor (44) is connected to the discharging device (43) and drives the discharging device (43) to work. There is a first discharging pipe (45) at the upper part of the discharging barrel (42) including the discharging motor and the discharging barrel, and a second discharging pipe (46) is provided at the top of the discharging barrel (42). The first discharging pipe (45) is connected to the dredging power head device (5), and the second discharging pipe (46) is connected to the vacuum pipeline (3).

7. The mud negative pressure cleaning device according to claim 1, characterized in that: The dredging power head device (5) includes a spiral cutter (51), a suction device (52), a pneumatic motor (53), an air pipe (54), a water pipe (55) and a negative pressure pipe (56). The spiral cutter (51) is connected to the pneumatic motor (53). The pneumatic motor (53) is located inside the suction device (52). The air pipe (54) passes through the top of the suction device (52) and is connected to the pneumatic motor (53). The water pipe (55) is located at the top of the suction device (52). The negative pressure pipe (56) is communicated with the end of the suction device (52), and the negative pressure pipe (56) is communicated with the first discharging pipe (45). After the slurry excavated by the spiral cutter (51) passes through the suction device (52), it is transported to the automatic discharging system (4) by the negative pressure pipe (56).

8. The mud negative pressure cleaning device according to claim 7, characterized in that: A spiral cutter gear is installed at the end of the spiral cutter (51), and a pneumatic motor gear is installed at the rotating shaft end of the pneumatic motor (53). The pneumatic motor gear meshes with the spiral cutter gear.

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