Treatment device for a ditch containing a black and odorous water body

Abstract

The present application relates to the treatment device for the ditch containing black and odorous water body, including retractable main body frame, drive part and skimming device and biochemical treatment device below main body frame, the edge of main body frame is provided with roller, is used to be erected in the both sides of ditch needing treatment, drive part drives roller rotation, so that main body frame moves along ditch;Skimming device includes skimming plate, mobile track, drive shaft and unhooking part, skimming plate is arranged on mobile track, and skimming plate can move skimming with mobile track, the rotation shaft at both ends of mobile track can intermittently connect both ends of drive shaft, realize the forward rotation or reverse rotation of mobile track, drive shaft is detachably connected drive part through the connecting gear of unhooking part, realize the start or stop of skimming device;Biochemical treatment device includes filler cylinder and aerator, is used to extend into the black and odorous water body in ditch, and carries out biochemical treatment.

Description

Technical Field

[0001] This invention belongs to the field of black and odorous water treatment technology, specifically relating to a treatment device for ditches containing black and odorous water. Background Technology

[0002] Black and odorous water bodies are those with a black bottom and a foul odor, sometimes emitting an unpleasant smell; they represent a specific state of water pollution. The main causes of black and odorous water bodies are hypoxia and eutrophication. These bodies produce odorous substances and black matter such as hydrogen sulfide, ammonia, and mercaptans. Pollutants primarily originate from the discharge of organic pollutants, untreated pesticides, fertilizer wastewater, and the mixing of domestic and industrial wastewater with rainwater. These pollutants flow into ditches, ponds, lakes, rivers, and other water bodies.

[0003] Currently, the main methods for treating black and odorous water bodies include non-point source pollution control, surface debris removal, bottom dredging, ecological restoration, and clean water replenishment. These methods typically require large-scale ecological and water conservancy projects, along with supporting wastewater treatment plants and complete sets of equipment to treat black and odorous water bodies in rivers and lakes. However, black and odorous water bodies manifest in various forms. For example, some black and odorous water bodies in narrow ditches have a small total water volume, shallow water level, and long, regular channels, exhibiting short-term and temporary characteristics. These are unsuitable for existing conventional black and odorous water treatment technologies and equipment, and long-term or permanent treatment equipment is also not easily implemented. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention provides a treatment device for ditches containing black and odorous water, comprising a retractable main frame, a drive unit, and a skimming device and a biochemical treatment device below the main frame. Rollers are provided on the edge of the main frame for mounting on both sides of the ditch to be treated. The drive unit drives the rollers to rotate, causing the main frame to move along the ditch.

[0005] The slag skimming device includes a slag skimming plate, a moving track, a drive shaft, and a disengaging part. The slag skimming plate is mounted on the moving track and can move with the moving track to skim slag. The rotating shafts at both ends of the moving track can be intermittently connected to both ends of the drive shaft to realize the forward or reverse rotation of the moving track. The drive shaft is detachably connected to the drive part through the connecting gear of the disengaging part to realize the start or stop of the slag skimming device.

[0006] The biological treatment device includes a packing cylinder and an aerator, which are used to extend into the black and odorous water in the ditch for biological treatment.

[0007] Optionally, the main frame is rectangular, with its two wide sides erected on the two banks of the ditch and its two long sides spanning across the top of the ditch. A top plate is provided on the main frame for mounting the packing cylinder and aerator.

[0008] Each of the four corners of the main frame is equipped with a roller, two of which are front wheels and two are rear wheels. The drive unit is located between the two rear wheels and is used to drive the rear wheels to move.

[0009] Optionally, the drive unit includes a main shaft and a drive motor. The main shaft is parallel to the long side of the main frame, and a first gear is provided on the main shaft at the position corresponding to the disengagement part. The first gear can rotate with the main shaft.

[0010] Optionally, the mobile track is located below the top plate and parallel to the top plate, and the forward or reverse rotation direction of the mobile track is along the long side of the main frame; the pivots at both ends of the mobile track are parallel to the wide side of the main frame, and the rotation of the pivots drives the mobile track to rotate.

[0011] The skimmer plate is always positioned below the two pivots of the moving track and moves back and forth along the long side of the main frame to prevent it from touching the top plate.

[0012] Optionally, the drive shaft is located between the moving track and the main shaft, the drive shaft is parallel to the long side of the main frame, and a main bevel gear is provided at each end of the drive shaft. A secondary bevel gear is provided at the end of the two rotating shafts of the moving track that points towards the drive shaft. The two ends of the drive shaft point towards and are close to the secondary bevel gears of the two rotating shafts of the moving track.

[0013] The length of the drive shaft is less than the distance between the two rotating shafts of the moving track. The drive shaft can move back and forth along its own length direction, so that the main bevel gear at one end of the drive shaft engages with the corresponding secondary bevel gear, thereby driving the rotating shaft to rotate. The rotating shaft then drives the moving track to move in one direction. At this time, the main bevel gear at the other end of the drive shaft does not contact the other rotating shaft of the moving track.

[0014] Optionally, a second gear is provided at the position of the drive shaft corresponding to the disengagement part. The second gear can drive the drive shaft to rotate by meshing with the connecting gear of the disengagement part, thereby driving the moving track to rotate.

[0015] Optionally, the disengagement part is located between the main shaft and the drive shaft, and includes a fixed frame, a slide rail, a connecting gear, and an adjusting rod. The slide rail is inclined and located inside the fixed frame. The connecting gear is located on the slide rail and can move along the slide rail. One end of the central rotating shaft of the connecting gear is connected to the top of the adjusting rod. The middle part of the adjusting rod is rotatably connected to the side wall of the fixed frame. The bottom end of the adjusting rod extends out of the fixed frame and can move up and down. The adjusting rod uses its middle part as a fulcrum and uses the lever principle to adjust the position of the connecting gear on the slide rail, so as to achieve engagement or disengagement with the first gear on the main shaft, thereby controlling whether the drive motor can drive the moving track to move.

[0016] Optionally, the upper surface of the top plate is provided with a first hydraulic cylinder and a second hydraulic cylinder. The first hydraulic cylinder is connected to the packing cylinder through a first telescopic rod, and the second hydraulic cylinder is connected to the aerator through a second telescopic rod. Both the first and second telescopic rods penetrate the top plate, which can adjust the height of the packing cylinder and the aerator to adapt to different water levels in the ditch.

[0017] Optionally, the long side of the main frame is a sleeve structure, including an outer rod and an inner rod. The upper part of the outer rod is a hollow sleeve. By adjusting the depth of the inner rod inserted into the hollow sleeve, the length of the main frame can be adjusted to adapt to ditches of different widths.

[0018] The lower part of the outer rod is a hollow guide groove, which is parallel to the long side of the main frame. The two ends of the middle bracket are slidably connected between the two guide grooves.

[0019] Optionally, two vertical agitators are provided below the mobile track, located on both sides of the central support, to agitate the black and odorous water in the ditch and improve the efficiency of biochemical treatment.

[0020] The first agitator, from top to bottom, includes a stirring motor, a third gear, and a first stirring paddle. The third gear is fitted onto the first stirring paddle and rotates with it. The second agitator, from top to bottom, includes a fourth gear and a second stirring paddle. The fourth gear is fitted onto the second stirring paddle. The third and fourth gears are positioned above the liquid surface. The two stirring paddles extend into the black and odorous water body to perform a stirring function.

[0021] Optionally, the bottom end of the adjusting rod is connected to the fifth gear in sequence via a connecting rod. The central axis of the fifth gear is parallel to the central axes of the third and fourth gears. When the bottom end of the adjusting rod moves upward, it pushes the fifth gear between the third and fourth gears. The two sides of the fifth gear mesh with the third and fourth gears respectively, so that the third gear drives the fourth gear to rotate through the fifth gear, thereby driving the second stirring paddle to rotate and expanding the stirring range. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a treatment device for ditches containing black and odorous water.

[0023] Figure 2 This is a schematic diagram of the unhooking part;

[0024] Figure 3 A schematic diagram of the connection between the main spindle and the drive shaft;

[0025] Figure 4 This is a schematic diagram showing the engagement between the drive shaft and the rotating shaft of the moving track.

[0026] Figure 5 This is a schematic diagram of the packing cylinder and aerator;

[0027] Figure 6 A side view of the long side of the main frame;

[0028] Figure 7 This is a side view of the support base;

[0029] Figure 8 This is a top view of the support base;

[0030] Figure 9 This is a schematic diagram showing the connection between two agitators.

[0031] In the attached diagram, 1-main frame, 2-roller, 3-skimming plate, 4-moving track, 5-drive shaft, 6-connecting gear, 7-packing cylinder, 8-aerator, 9-top plate, 10-main shaft, 11-first gear, 12-second gear, 13-third gear, 14-fourth gear, 15-fifth gear, 16-rotating shaft, 17-main bevel gear, 18-secondary bevel gear, 19-fixed frame, 20-slide rail, 21-adjusting rod, 22-first side wall, 23-second side wall, 24-platform, 25-slide rail, 26-fixed rod, 27-outer sleeve rod, 28-inner rod, 29-guide groove, 30-intermediate support, 31-positioning pin, 32-support seat, 33-protective cover, 34-sludge guide, 35-wing plate, 36-first stirring paddle, 37-second stirring paddle. Detailed Implementation

[0032] This embodiment provides a treatment device for ditches containing black and odorous water, such as... Figures 1-9 As shown, it includes a retractable main frame 1, a drive unit, and a skimming device and a biochemical treatment device below the main frame 1. Rollers 2 are provided on the edge of the main frame 1 for mounting on both sides of the ditch to be treated. The drive unit drives the rollers 2 to rotate, so that the main frame 1 moves along the ditch.

[0033] The slag skimming device includes a slag skimming plate 3, a moving track 4, a drive shaft 5, and a disengaging part. The slag skimming plate 3 is mounted on the moving track 4 and can move with the moving track 4 to skim slag. The rotating shafts at both ends of the moving track 4 can be intermittently connected to the two ends of the drive shaft 5 to realize the forward or reverse rotation of the moving track 4. The drive shaft 5 is detachably connected to the drive part through the connecting gear 6 of the disengaging part to realize the start or stop of the slag skimming device.

[0034] The biological treatment device includes a packing cylinder 7 and an aerator 8, which are used to extend into the black and odorous water in the ditch for biological treatment.

[0035] Optionally, the main frame 1 is rectangular, with its two wide sides erected on the two banks of the ditch and its two long sides spanning across the top of the ditch. The main frame 1 is provided with a top plate 9 for supporting the packing cylinder 7 and the aerator 8.

[0036] A roller 2 is provided at each of the four corners of the main frame 1, two of which are front wheels and two are rear wheels. The drive unit is located between the two rear wheels and is used to drive the rear wheels to move.

[0037] Optionally, the drive unit includes a main shaft 10 and a drive motor. The main shaft 10 is parallel to the long side of the main frame 1. The two ends of the main shaft 10 are respectively connected to the axles of the two rear wheels. The drive motor is connected to and drives the main shaft 10 to rotate, thereby driving the rear wheels to rotate and thus driving the main frame 1 to move. A first gear 11 is provided on the main shaft 10 at the position corresponding to the disengagement part. The first gear 11 can rotate with the main shaft 10. The specific structure and principle of the drive unit driving the rear wheels to move described above are existing technologies.

[0038] Optionally, the movable track 4 is located below the top plate 9 and parallel to the top plate 9. The forward or reverse rotation direction of the movable track 4 is along the long side of the main frame 1. The pivots at both ends of the movable track 4 are parallel to the wide side of the main frame 1, and the movable track 4 is driven to rotate by the rotation of the pivot 16.

[0039] The skimming plate 3 is always positioned below the two pivots 16 of the moving track 4 and moves back and forth along the long side of the main frame 1 to prevent the skimming plate 3 from touching the top plate 9. A vertically downward support rod is provided on the lower surface of the top plate 9, which is rotatably connected to the two pivots of the moving track 4, so that the moving track 4 is suspended below the top plate 9.

[0040] Optionally, the drive shaft 5 is located between the moving track 4 and the main shaft 10. The drive shaft 5 is parallel to the long side of the main frame 1. A main bevel gear 17 is provided at each end of the drive shaft 5. A secondary bevel gear 18 is provided at the two rotating shafts 16 of the moving track 4 pointing towards one end of the drive shaft 5. The two ends of the drive shaft 5 are respectively pointing towards and close to the secondary bevel gears 18 of the two rotating shafts 16 of the moving track 4.

[0041] The length of the drive shaft 5 is less than the distance between the two rotating shafts 16 of the moving track 4. The drive shaft 5 can move back and forth along its own length direction, so that the main bevel gear 17 at one end of the drive shaft 5 engages with the corresponding secondary bevel gear 18, thereby driving the rotating shaft to rotate. The rotating shaft then drives the moving track 4 to move in one direction. At this time, the main bevel gear 17 at the other end of the drive shaft 5 does not contact the other rotating shaft of the moving track 4.

[0042] Optionally, the drive shaft 5 is provided with a second gear 12 at the position corresponding to the disengagement part. The second gear 12 can drive the drive shaft 5 to rotate by meshing with the connecting gear 6 of the disengagement part, thereby driving the moving track 4 to rotate.

[0043] Alternatively, the second gear 12 has a certain length along the length direction of the drive shaft 5, so that when the drive shaft 5 moves, the second gear 12 does not disengage from the connecting gear 6, that is, it does not affect the rotation of the drive shaft 5.

[0044] Optionally, the disengagement part is located between the main shaft 10 and the drive shaft 5, and includes a fixed frame 19, a slide 20, a connecting gear 6, and an adjusting rod 21. The slide 20 is inclined and located inside the fixed frame 19. The connecting gear 6 is located on the slide 20 and can move along the slide 20. One end of the central rotating shaft of the connecting gear 6 is connected to the top of the adjusting rod 21. The middle part of the adjusting rod 21 is rotatably connected to the side wall of the fixed frame 19. The bottom end of the adjusting rod 21 extends out of the fixed frame 19 and moves up and down. The adjusting rod 21 uses its middle part as a fulcrum and uses the lever principle to adjust the position of the connecting gear 6 on the slide 20, so as to achieve engagement or disengagement with the first gear 11 on the main shaft 10, thereby controlling whether the drive motor can drive the moving track 4 to move.

[0045] Further optionally, the fixing frame 19 has two opposing vertical sidewalls, which are parallel to each other and parallel to the length direction of the drive shaft 5. The first sidewall 22 is close to the drive shaft 5, and the second sidewall 23 is close to the main shaft 10. The top of the first sidewall 22 is provided with a platform 24 for supporting the drive shaft 5.

[0046] The upper surface of the platform 24 is provided with a slide rail 25 parallel to the drive shaft 5. The middle part of the drive shaft 5 is slidably connected to the slide rail 25 by a slider, so that the drive shaft 5 can move along the slide rail 25.

[0047] Preferably, the slide rail 25 is provided with limiting plates at both ends to prevent the drive shaft 5 from derailing, and also to facilitate setting the distance that the drive shaft 5 should move when the main bevel gear 17 meshes with the corresponding secondary bevel gear 18.

[0048] Further optionally, the top of the slide 20 is connected to the first side wall 22 and the bottom is connected to the second side wall 23. When the connecting gear 6 is at the top of the slide 20, it is located between the first gear 11 and the second gear 12. The two sides of the connecting gear 6 mesh with the first gear 11 and the second gear 12 respectively, so that the drive motor can drive the drive shaft 5 to rotate, thereby driving the moving track 4 to rotate.

[0049] When the connecting gear 6 is at the bottom of the slide 20, the connecting gear 6 disengages from the first gear 11 and the second gear 12, the drive motor disconnects from the drive shaft 5, and the moving track 4 does not move.

[0050] The upper and lower ends of the slide 20 are each provided with a straight platform slide 20 for placing the connecting gear 6.

[0051] Alternatively, the central axis of the connecting gear 6 is parallel to the drive shaft 5, the adjusting rod 21 is located on the outer edge of the first side wall 22, the middle part of the adjusting rod 21 is connected to the first side wall 22 through a rotating shaft, the rotating shaft is inserted into the outer edge of the first side wall 22 and is parallel to the drive shaft 5.

[0052] Optionally, a fixing device is provided below the rotating shaft to fix the tilt angle of the adjusting rod 21, thereby fixing the position of the connecting gear 6 on the slide rail 20.

[0053] The fixing device includes a fixing rod 26 and a fixing clamp. The fixing rod 26 is fixed to the outer surface of the first side wall 22 and points horizontally toward the drive shaft 5. The lower part of the adjusting rod 21 is connected to the fixing rod 26 through the fixing clamp. When the fixing clamp is loosened, the adjusting rod 21 can swing. After the position of the connecting gear 6 is determined, the fixing clamp tightens, locking the relative position of the adjusting rod 21 and the fixing rod 26. If the position of the connecting gear 6 is very low, causing the adjusting rod 21 to move out of the range of the fixing rod 26, the adjusting rod 21 can also be stable when the connecting gear 6 is stable on the platform slide at the bottom of the slide.

[0054] In use, the two front wheels of the main frame 1 are respectively mounted on the two banks of the ditch, and the two rear wheels are respectively mounted on the two banks of the ditch. As one implementation method, the ditch to be treated flows north-south. For example, if the main frame 1 moves from north to south, one front wheel and one rear wheel roll on the east bank, and the other front wheel and one rear wheel roll on the west bank. The drive motor is installed on the lower surface of the top plate 9 and near the main shaft 10 to connect to and control the rotation of the main shaft 10. The main shaft 10 drives the two rear wheels to rotate, thereby propelling the main frame 1 and the two front wheels southward. The moving track 4 is oriented east-west and can drive the skimming plate 3 to move from east to west or from west to east, thereby skimming pollutants on the surface of the ditch to both banks for subsequent dredging and collection. The moving track 4 can be activated in a timely manner according to the amount of pollutants on the ditch surface. Specifically, when skimming is required, the bottom of the adjusting rod 21 moves downward, causing the top of the adjusting rod 21 to drive the connecting gear 6 to move upward along the slide rail 20 until it stabilizes on the platform slide rail 20 at the top of the slide rail 20. At this time, the two sides of the connecting gear 6 respectively mesh with the first gear 11 and the second gear 12. The drive motor drives the drive shaft 5 to rotate sequentially through the main shaft 10, the first gear 11, the connecting gear 6, and the second gear 12. Viewed from east to west, the main shaft 10 and the first gear 11 rotate clockwise, the connecting gear 6 rotates counterclockwise, and the second gear 12 and the drive shaft 5 rotate clockwise. At this time, the middle part of the drive shaft 5 moves to the easternmost end of the slide rail through the slider, and the main bevel gears 17 at both ends of the drive shaft 5 rotate clockwise. The main bevel gear 17 on the east side of the drive shaft 5 meshes with the secondary bevel gear 18 (clockwise rotation) of the rotating shaft on the east side of the moving track 4. Viewed from south to north, the rotating shaft on the east side of the moving track 4 drives the moving track 4 to rotate clockwise, causing the skimming plate 3 to move from west to east. Since the skimming plate 3 cannot collide with the top plate 9, it needs to return along the same path. That is, the middle part of the drive shaft 5 moves to the westernmost end of the slide rail via the slider. The main bevel gear 17 on the west side of the drive shaft 5 meshes with the secondary bevel gear 18 on the rotating shaft on the west side of the moving track 4. The rotation direction of the drive shaft 5 remains unchanged. Viewed from south to north, the rotating shaft on the west side of the moving track 4 drives the moving track 4 to rotate counterclockwise, causing the skimming plate 3 to move from east to west for reset or reverse skimming. When skimming is not needed, the bottom of the adjusting rod 21 moves upward, causing the connecting gear 6 to move downward along the slide rail 20 until it stabilizes at the bottom of the platform slide rail 20.

[0055] Optionally, the upper surface of the top plate 9 is provided with a first hydraulic cylinder and a second hydraulic cylinder. The first hydraulic cylinder is connected to the packing cylinder 7 through a first telescopic rod, and the second hydraulic cylinder is connected to the aerator 8 through a second telescopic rod. Both the first telescopic rod and the second telescopic rod pass through the top plate 9, which can adjust the height of the packing cylinder 7 and the aerator 8 to adapt to different water levels in the ditch.

[0056] Optionally, the interior of the packing cylinder 7 is filled with biological packing material, on which microorganisms are attached for biochemical treatment of black and odorous water bodies.

[0057] The aerator 8 is a nanobubble generator that provides oxygen for microorganisms.

[0058] The microorganisms on the outer side of the biological packing material inside the packing cylinder 7 can come into contact with water with high oxygen content and a large number of aerobic bacteria; the microorganisms on the inner side of the biological packing material inside the packing cylinder 7 are mostly anaerobic bacteria, which can remove COD and ammonia nitrogen from black and odorous water bodies.

[0059] Optionally, the long side of the main frame 1 is a sleeve structure, including an outer rod 27 and an inner rod 28. The upper part of the outer rod 27 is a hollow sleeve. By adjusting the depth of the inner rod 28 inserted into the hollow sleeve, the length of the main frame 1 can be adjusted to adapt to trenches of different widths.

[0060] The lower part of the outer rod 27 is a hollow guide groove 29, which is parallel to the long side of the main frame 1. The two ends of the middle bracket 30 are slidably connected between the two guide grooves 29.

[0061] Optionally, the inner rod 28 may have several pairs of adjusting holes evenly arranged on both sides along its length. Corresponding to the positions of the adjusting holes, through holes are also provided on both sides of the hollow sleeve portion of the outer rod 27. When the inner rod 28 extends a certain length into the outer rod 27 according to the width of the ditch, a pair of adjusting holes corresponds to a pair of through holes. A positioning pin 31 passes horizontally through the adjusting holes and through holes to fix the positions of the inner rod 28 and the outer rod 27. One positioning pin 31 or multiple positioning pins can be provided on the inner rod 28 and the outer rod 27.

[0062] Further optionally, the intermediate support 30 includes two vertical support rods and a horizontal support base 32. The top end of the support rod is slidably connected to the guide groove 29, and the bottom end is connected to one end of the support base 32. The support base 32 is parallel to the wide side of the main frame 1. The intermediate support 30 and the top plate 9 form a U-shape.

[0063] The bottom of the support base 32 is provided with a row of wheels along its length, so that when the main frame 1 moves, the middle support 30 can move along with it to provide support for the middle part of the main frame 1.

[0064] Optionally, a protective cover 33 is provided on the outside of the wheel of the support base 32. The protective cover 33 covers the top and side of the wheel, and the bottom edge of the protective cover 33 leaves a gap with the bottom surface of the ditch to prevent the bottom of the protective cover 33 from hindering the movement of the support base 32 and to protect the wheel from the influence of sludge in the ditch.

[0065] The protective cover 33 is provided with a V-shaped mud guide 34 at one end corresponding to the front end of the main frame 1. The tip of the mud guide 34 points in the direction of the main frame 1 forward, and the bottom edge of the mud guide 34 contacts the bottom surface of the ditch. It is used to break and push away the mud in the direction of the intermediate support 30 forward so as not to affect the movement of the wheels.

[0066] The protective cover 33 has several pairs of wing plates 35 on both sides. The front end of the wing plate 35 is connected to the outer side of the protective cover 33, and the rear end is inclined outward to push away the mud near the protective cover 33 to protect the wheels when the support seat 32 moves.

[0067] This invention includes an intermediate support 30 to support the main frame 1 in the middle. Through the cooperation of the support rod and the guide groove 29, the intermediate support 30 can move its position as the width of the main frame 1 changes. The two support rods are located at the front and rear ends of the main frame 1, respectively, without affecting the operation of the components between the main shaft 10 and the moving track 4. The wheels of the support base 32 assist the movement of the intermediate support 30. The mud guiding part 34 and the wing plate 35 break up the sludge near the support base 32. Since the support base 32 is located in the middle of the main frame 1, breaking up and loosening the sludge in the middle of the ditch facilitates the subsequent centralized removal of sludge.

[0068] Optionally, two vertical agitators are provided below the mobile track 4, located on both sides of the middle support 30, for stirring the black and odorous water in the ditch and improving the efficiency of biochemical treatment.

[0069] The first agitator, from top to bottom, includes a stirring motor, a third gear 13, and a first stirring paddle 36. The third gear 13 is mounted on the first stirring paddle 36 and rotates with the first stirring paddle 36. The second agitator, from top to bottom, includes a fourth gear 14 and a second stirring paddle 37. The fourth gear 14 is mounted on the second stirring paddle 37. The third gear 13 and the fourth gear 14 are positioned above the liquid surface. The two stirring paddles extend into the black and odorous water body to perform a stirring function.

[0070] Optionally, the bottom end of the adjusting rod 21 is connected to the fifth gear 15 in sequence via a connecting rod. The central axis of the fifth gear 15 is parallel to the central axes of the third gear 13 and the fourth gear 14. When the bottom end of the adjusting rod 21 moves upward, it pushes the fifth gear 15 into the space between the third gear 13 and the fourth gear 14. The two sides of the fifth gear 15 mesh with the third gear 13 and the fourth gear 14 respectively, so that the third gear 13 drives the fourth gear 14 to rotate through the fifth gear 15, thereby driving the second stirring paddle 37 to rotate and expanding the stirring range.

[0071] The lower surface of the top plate 9 is provided with one or two curved supports (the supports do not affect the movement of the skimming plate 3), which bypass the moving track 4 and connect to and support (suspend) the two agitators below. Since the skimming plate 3 acts on the water surface, the skimming plate 3 and the moving track 4 are positioned relatively high, which does not affect the rotation of the agitators. When the ditch is narrow, the first agitator can meet the mixing requirements, and the first agitator rotates alone; when the ditch is wide, the first agitator drives the second agitator to rotate through the fifth gear 15, thereby expanding the mixing range.

Claims

1. A treatment device for ditches containing black and odorous water, characterized in that, It includes a retractable main frame, a drive unit, and a skimming device and a biochemical treatment device below the main frame. Rollers are set on the edge of the main frame for mounting on both sides of the ditch to be treated. The drive unit drives the rollers to rotate, so that the main frame moves along the ditch. The slag skimming device includes a slag skimming plate, a moving track, a drive shaft, and a disengaging part. The slag skimming plate is mounted on the moving track and can move with the moving track to skim slag. The rotating shafts at both ends of the moving track can be intermittently connected to both ends of the drive shaft to realize the forward or reverse rotation of the moving track. The drive shaft is detachably connected to the drive part through the connecting gear of the disengaging part to realize the start or stop of the slag skimming device. The biological treatment device includes a packing cylinder and an aerator, which are used to extend into the black and odorous water in the ditch for biological treatment; The main frame is rectangular, with its two wide sides supported on the banks of the ditch and its two long sides spanning across the ditch. A top plate is installed on the main frame. The mobile track is located below the top plate and parallel to the top plate. The forward or reverse rotation direction of the mobile track is along the long side of the main frame. The pivots at both ends of the mobile track are parallel to the wide side of the main frame, and the rotation of the pivots drives the mobile track to rotate. The skimming plate is always positioned below the two pivots of the moving track and moves back and forth along the long side of the main frame to prevent the skimming plate from touching the top plate. The drive shaft is located between the moving track and the main shaft. The drive shaft is parallel to the long side of the main frame. A main bevel gear is provided at each end of the drive shaft. A secondary bevel gear is provided at the end of the two rotating shafts of the moving track that points to the drive shaft. The two ends of the drive shaft point to the two secondary bevel gears respectively. The length of the drive shaft is less than the distance between the two rotating shafts of the moving track. The drive shaft can move back and forth along its own length direction, so that the main bevel gear at one end of the drive shaft engages with the corresponding secondary bevel gear, thereby driving the rotating shaft to rotate. The rotating shaft then drives the moving track to move in one direction. At this time, the main bevel gear at the other end of the drive shaft does not contact the other rotating shaft of the moving track. The drive unit includes a main shaft and a drive motor. The main shaft is parallel to the long side of the main frame. A first gear is provided on the main shaft at the position corresponding to the disengagement part. The first gear can rotate with the main shaft. The disengagement part is located between the main shaft and the drive shaft, and includes a fixed frame, a slide rail, a connecting gear, and an adjusting rod. The slide rail is inclined and located inside the fixed frame. The connecting gear is located on the slide rail and can move along the slide rail. One end of the central rotating shaft of the connecting gear is connected to the top of the adjusting rod. The middle part of the adjusting rod is rotatably connected to the side wall of the fixed frame. The bottom end of the adjusting rod extends out of the fixed frame and can move up and down. The adjusting rod uses its middle part as a fulcrum and uses the lever principle to adjust the position of the connecting gear on the slide rail, so as to achieve engagement or disengagement with the first gear on the main shaft, thereby controlling whether the drive motor can drive the moving track to move.

2. The treatment device for ditches containing black and odorous water as described in claim 1, characterized in that, The top plate is used to support the packing cylinder and aerator; Each of the four corners of the main frame is equipped with a roller, two of which are front wheels and two are rear wheels. The drive unit is located between the two rear wheels and is used to drive the rear wheels to move.

3. The treatment device for ditches containing black and odorous water as described in claim 2, characterized in that, The drive shaft is provided with a second gear at the position corresponding to the disengagement part. The second gear can drive the drive shaft to rotate by meshing with the connecting gear of the disengagement part, thereby driving the moving track to rotate.

4. The treatment device for ditches containing black and odorous water as described in claim 1, characterized in that, The upper surface of the top plate is equipped with a first hydraulic cylinder and a second hydraulic cylinder. The first hydraulic cylinder is connected to the packing cylinder through a first telescopic rod, and the second hydraulic cylinder is connected to the aerator through a second telescopic rod. Both the first and second telescopic rods penetrate the top plate, which can adjust the height of the packing cylinder and the aerator to adapt to different water levels in the ditch.

5. The treatment device for ditches containing black and odorous water as described in claim 2, characterized in that, The long side of the main frame is a sleeve structure, including an outer rod and an inner rod. The upper part of the outer rod is a hollow sleeve. By adjusting the depth of the inner rod inserted into the hollow sleeve, the length of the main frame can be adjusted to adapt to ditches of different widths. The lower part of the outer rod is a hollow guide groove, which is parallel to the long side of the main frame. The two ends of the middle bracket are slidably connected between the two guide grooves.

6. The treatment device for ditches containing black and odorous water as described in claim 3, characterized in that, Two vertical agitators are installed below the mobile track, located on both sides of the central support, to agitate the black and odorous water in the ditch and improve the efficiency of biochemical treatment. The first agitator, from top to bottom, includes a stirring motor, a third gear, and a first stirring paddle. The third gear is fitted onto the first stirring paddle and rotates with it. The second agitator, from top to bottom, includes a fourth gear and a second stirring paddle. The fourth gear is fitted onto the second stirring paddle. The third and fourth gears are positioned above the liquid surface. The two stirring paddles extend into the black and odorous water body to perform a stirring function.

7. The treatment device for ditches containing black and odorous water as described in claim 6, characterized in that, The bottom end of the adjusting rod is connected to the fifth gear in sequence through the connecting rod. The central axis of the fifth gear is parallel to the central axes of the third and fourth gears. When the bottom end of the adjusting rod moves upward, it pushes the fifth gear into the space between the third and fourth gears. The two sides of the fifth gear mesh with the third and fourth gears respectively, so that the third gear drives the fourth gear to rotate through the fifth gear, thereby driving the second stirring paddle to rotate and expanding the stirring range.

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