Sedimentation Tank Cleaning Robot for Municipal Sewage Treatment Plant

Abstract

The present invention relates to the technical field of sewage treatment, and particularly to a sedimentation tank cleaning robot for urban domestic sewage treatment plants, which includes a main driving member and a swing arm. The swing arm is arranged with a first cleaning mechanism and a second cleaning mechanism along the way. The first cleaning mechanism includes a brush member, and the second cleaning mechanism includes a rotating rubber disc. The rotating rubber disc is arranged horizontally in contact with the transverse wall of the sedimentation tank, and a brush block is installed at the bottom of the rotating rubber disc, which can wash the moss and sundries on the transverse wall of the sedimentation tank. It can simultaneously clean the side wall and the bottom wall of the sedimentation tank in multiple directions. The swing arm is provided with a cooling mechanism. The cooling driving seat is in transmission cooperation with the rotating guiding screw through the guiding nut of the guiding sliding seat, and the cooling sliding seat can move along the length direction of the cross beam strip, increasing the cooling area. At the same time, it can also spray a liquid containing ferric salt flocculant, which has a good effect on the treatment of wastewater containing heavy metal ions such as printing and dyeing wastewater and electroplating wastewater. The ferric salt flocculant can be replaced with a disinfectant or a water purifying agent.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a sedimentation tank cleaning robot in a town domestic sewage treatment plant. Background Art

[0002] Nowadays, sewage treatment has become one of the urgent problems to be solved in society. Sewage treatment is very necessary. However, in the process of sewage treatment, a lot of moss and algae will grow on the weir plate, outlet trough and outlet pool of the secondary sedimentation tank; especially in summer, the weather is hot and the sunlight is direct, which makes the moss grow very fast and the amount is large. It is very troublesome to clean, and cleaning equipment is needed.

[0003] The invention with application number CN202022131739.X discloses an automatic cleaning device for the outlet weir of the secondary sedimentation tank, including an outlet weir and a transverse plate, wherein the top surface of the outlet weir is provided with a transverse plate, and a motor is installed at the middle position of the top surface of the transverse plate, and the output end of the motor is fixedly connected to a rotating shaft through a rotating rod, and a first connecting rod is provided on the rotating shaft, and a second connecting rod is provided below the first connecting rod. Beneficial effect: The present invention drives the rotating shaft to rotate by a motor, so that the side plate between the first connecting rod and the second connecting rod on the rotating shaft rotates along the inner wall of the outlet weir, and the first scraper and the second scraper on the side plate are used in coordination, so that the moss and algae on the inner wall of the outlet weir can be effectively removed, and the bottom brush provided at the bottom end of the rotating shaft and the bristles on the bottom brush can effectively clean the bottom of the outlet weir, which is convenient for the comprehensive cleaning of the outlet weir, and is conducive to improving the outlet water quality of the outlet weir.

[0004] However, most of the existing cleaning equipment can only clean one area. Since the sedimentation tank has multiple annular grooves for liquid flow, the existing cleaning equipment can only clean the side walls or the bottom wall and cannot achieve multi-directional cleaning. The cleaning coverage is not high and the practicality is low. Summary of the invention

[0005] The purpose of the present invention is to provide a sedimentation tank cleaning robot for a municipal sewage treatment plant in view of the deficiencies in the prior art.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A cleaning robot for a sedimentation tank in a town sewage treatment plant, characterized in that: the cleaning robot comprises a main driving member installed in the center of a circular sedimentation tank and a swing arm with one end connected to the main driving member by transmission, and the swing arm can swing around the main driving member.

[0008] The swing arm is provided with a first cleaning mechanism and a second cleaning mechanism along the way;

[0009] The swing arm is provided with a cooling mechanism, which includes a cooling sliding seat that moves along the length direction of the swing arm, a rotatable cooling driving seat is installed on the top of the cooling sliding seat, and the left and right sides of the cooling driving seat are respectively provided with a first cooling component that can be extended, and the front and rear sides of the cooling driving seat are respectively provided with a spraying component that can be extended;

[0010] The cooling drive seat is provided with a liquid storage cavity for storing low-temperature water, the cooling drive seat is provided with a liquid inlet connected to the liquid storage cavity at the top, the liquid inlet is installed with a pair of pipe connectors, the main driving member is provided with a water supply pump for supplying low-temperature water, a first water supply hose and a flocculant liquid supply pipe for liquid flow are arranged between the water supply pump and the pipe connector, the first water supply hose is connected to one of the pipe connectors, and the flocculant liquid supply pipe is connected to the other pipe connector;

[0011] The first water supply hose is used for cooling water to pass through, and the flocculant liquid supply pipe is used for liquid containing flocculant to pass through; the medicine spraying assembly includes a medicine spraying seat arranged on the cooling drive seat, a medicine spraying port is installed at the bottom of the medicine spraying seat, and a three-way joint is installed at one end of the flocculant liquid supply pipe close to the water supply pump, one of the joints is connected to the water supply pump, and the other joint is connected to the medicine box, and the medicine box is filled with flocculant, and the flocculant is passed into the flocculant liquid supply pipe through the three-way joint;

[0012] The end of the swing arm close to the main driving member is provided with a hose support mechanism for the first water supply hose and the flocculant liquid supply pipe. The hose support mechanism includes a support drive seat, and the support drive seat is equipped with a first rotating reel for winding the first water supply hose and a second rotating reel for winding the flocculant liquid supply pipe. The first rotating reel and the second rotating reel rotate respectively;

[0013] The first cleaning mechanism includes a first driving member and a brush member rotatably mounted on a driving end of the first driving member, the brush member can contact the lateral wall of the sedimentation tank, the first driving member includes a first cleaning driving seat capable of adjusting a position along the length direction of the swing arm, the first cleaning driving seat is mounted with a driving motor, and a cleaning shaft is mounted on the driving end of the driving motor;

[0014] The second cleaning mechanism includes a second driving member and a rotating rubber disc rotatably mounted on a driving end of the second driving member. The rotating rubber disc is arranged transversely to contact the transverse wall of the sedimentation tank, and a brush block is mounted on the bottom of the rotating rubber disc.

[0015] The beneficial effects of the present invention are as follows: during cleaning, the main driving member drives the swing arm to swing around the center of the sedimentation tank, so that the first cleaning mechanism and the second cleaning mechanism respectively make circular motions; the brush member of the first cleaning mechanism can contact the lateral wall of the sedimentation tank, and under the drive of the first driving member, the brush member rotates to scrub the moss and debris on the lateral wall of the sedimentation tank; the rotating rubber disc of the second cleaning mechanism rotates under the drive of the second driving member, so that the brush block at the bottom of the rotating rubber disc can contact the lateral wall of the sedimentation tank, and the moss and debris on the lateral wall of the sedimentation tank can be scrubbed; the side wall and the bottom wall of the sedimentation tank can be cleaned in multiple directions at the same time, the cleaning coverage rate is high, and the practicality is relatively high;

[0016] The cooling drive seat cooperates with the rotating guide screw through the guide screw sleeve of the guide slide, so that the cooling slide seat can move along the length direction of the cross beam, and the moving range can cover the first cleaning mechanism and the second cleaning structure, thereby increasing the cooling area;

[0017] When the spray component is working, it can spray out liquid containing iron salt flocculant, which has a good effect on the treatment of wastewater containing heavy metal ions such as printing and dyeing wastewater and electroplating wastewater, because some heavy metals can be removed by co-precipitation during the flocculation process; since the sedimentation tank has multiple annular groove tanks, the spray component can move radially in the sedimentation tank through different annular groove tanks, add chemicals to the sewage that needs to accelerate the sedimentation of suspended particles, increase the reaction speed, and improve the sewage treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the cleaning robot from a top view.

[0019] Figure 2 It is a structural schematic diagram of the connection between the swing arm and the first cleaning mechanism, the second cleaning mechanism, and the third cleaning mechanism.

[0020] Figure 3 It is a schematic diagram of the connection between the swing arm, the first cleaning mechanism and the second cleaning structure.

[0021] Figure 4 It is a structural schematic diagram of the first cleaning mechanism.

[0022] Figure 5 It is a structural schematic diagram of the second cleaning mechanism.

[0023] Figure 6 It is a structural schematic diagram of the cooperation between the swing arm and the cooling mechanism.

[0024] Figure 7 It is a structural schematic diagram of the cooling drive seat.

[0025] Figure 8 It is a schematic diagram of the internal structure of the cooling drive seat and the first cooling component.

[0026] Fig. 9 It is a schematic diagram of the internal structure of the cooling drive seat and the dosing temperature component.

[0027] Fig.10 for Figure 1 A partial enlarged schematic diagram of .

[0028] Fig.11 It is a schematic diagram of the cross-sectional structure of the hose support mechanism.

[0029] Reference numerals include:

[0030] 1-Swing arm,

[0031] 10-first cleaning mechanism, 11-first cleaning drive seat, 12-motor frame, 13-drive motor,

[0032] 14-cleaning shaft, 15-brush piece, 16-support plate, 17-connecting vertical plate, 18-driving hole,

[0033] 19-Rolling bearings,

[0034] 2-Adjustment mechanism,

[0035] 21-guide rod, 22-guide sliding block, 23-guide hole, 24-fixed seat, 25-support block,

[0036] 26- Shield,

[0037] 3-Positioning seat,

[0038] 31-connecting screw, 32-locking nut, 33-tension spring, 34-hook, 35-main drive, 36-installation box, 37-main motor,

[0039] 4- Second cleaning mechanism,

[0040] 40-second driving member, 41-rotating rubber disc, 42-brush block, 43-third cleaning mechanism,

[0041] 44-first cleaning rod, 45-second cleaning rod, 46-moss scraper, 47-connecting rod, 48-connecting spring, 49-compression spring, 50-second cleaning drive seat, 51-drive arm,

[0042] 6-Cooling mechanism,

[0043] 61-beam bar, 62-guide screw rod, 63-guide slide groove, 64-cooling sliding seat, 65-guide slide seat, 66-guide screw sleeve, 67-rotating motor, 68-first water supply hose, 69-flocculating agent supply pipe,

[0044] 7- Cooling drive seat,

[0045] 701-first cooling component, 702-spraying component, 703-sliding support plate,

[0046] 71-liquid storage chamber, 72-liquid inlet, 73-pipe connector, 74-water supply pump, 75-first water connection joint, 76-first movable groove, 77-first water spray seat, 78-first water supply pipe, 79-first water spray port, 710-second movable groove, 711-second water connection joint, 712-drug spray seat, 713-second drug supply pipe,

[0047] 714-second drug supply flow pipe, 715-drug spraying port,

[0048] 8-Hose support mechanism,

[0049] 80-support drive seat, 81-first rotating reel, 82-second rotating reel, 83-first driving shaft, 84-second driving shaft, 85-hollow driving hole, 86-first fixed sleeve, 87-second fixed sleeve, 88-movable bearing, 89-plane bearing, 90-pipe box 91-medicine box 92-tee joint. DETAILED DESCRIPTION

[0050] The present invention is described in detail below with reference to the accompanying drawings.

[0051] like Figure 1-9 As shown, the sedimentation tank cleaning robot of a municipal sewage treatment plant includes a main driving member 35 installed in the center of the circular sedimentation tank and a swing arm 1 with one end drivingly connected to the main driving member 35. The swing arm 1 can swing around the main driving member 35. The main driving member 35 includes a mounting box 36 arranged in the center of the circular sedimentation tank. The mounting box 36 is equipped with a main motor 37. One end of the swing arm 1 is installed at the driving end of the main motor 37. When the main motor 37 rotates, it drives the swing arm 1 to swing around the center of the sedimentation tank.

[0052] A first cleaning mechanism 10 and a second cleaning mechanism 4 are arranged along the swing arm 1;

[0053] The first cleaning mechanism 10 includes a first driving member and a brush member 15 rotatably mounted on a driving end of the first driving member, the brush member 15 can contact the lateral wall of the sedimentation tank, the first driving member includes a first cleaning driving seat capable of adjusting the position along the length direction of the swing arm 1, the first cleaning driving seat is equipped with a driving motor, and a cleaning shaft is installed at the driving end of the driving motor.

[0054] The second cleaning mechanism 4 includes a second driving member 40 and a rotating rubber disc 41 rotatably mounted on a driving end of the second driving member 40 . The rotating rubber disc 41 is arranged transversely to contact the transverse wall of the sedimentation tank. A brush block 42 is mounted at the bottom of the rotating rubber disc 41 .

[0055] During cleaning, the main driving member 35 drives the swing arm 1 to swing around the center of the sedimentation tank, so that the first cleaning mechanism 10 and the second cleaning mechanism 4 make circular motions respectively; the brush member 15 of the first cleaning mechanism 10 can contact the lateral wall of the sedimentation tank, and driven by the first driving member, the brush member 15 rotates to scrub the moss and debris on the lateral wall of the sedimentation tank; the rotating rubber disc 41 of the second cleaning mechanism 4 rotates under the drive of the second driving member 40, so that the brush block 42 at the bottom of the rotating rubber disc 41 can contact the lateral wall of the sedimentation tank, and can scrub the moss and debris on the lateral wall of the sedimentation tank; the side walls and bottom walls of the sedimentation tank can be cleaned in multiple directions at the same time, the cleaning coverage rate is high, and the practicality is relatively high.

[0056] In addition, a positioning seat 3 is provided along the swing arm 1, and a support plate 16 for positioning the cleaning shaft 14 is provided below the driving motor 13. A tension spring 33 is arranged obliquely between the support plate 16 and the positioning seat 3 to drive the brush member 15 to fit the side wall of the sedimentation tank. The position of the first cleaning driving seat 11 can also be adjusted to facilitate the brush member 15 to clean at different positions; when the brush member 15 rotates, the tension spring 33 can position it, so that the elastic force can drive the brush member 15 to fit the side wall of the sedimentation tank, thereby improving the cleaning efficiency.

[0057] Specifically, the swing arm 1 is equipped with an adjusting mechanism 2 for adjusting the position of the first cleaning drive seat 11. The adjusting mechanism 2 includes a guide rod 21 arranged along the length direction of the swing arm 1. The first cleaning drive seat 11 is equipped with a guide sliding block 22. The guide sliding block 22 is formed with a guide hole 23 that slidably cooperates with the guide rod 21. When the position of the first cleaning drive seat 11 needs to be adjusted, the guide hole 23 formed in the guide sliding block 22 can be slidably cooperated with the guide rod 21, so that the first cleaning drive seat 11 can be moved along the axial direction of the guide rod 21, thereby adjusting the position of the first cleaning drive seat 11. After the position is adjusted, the position of the brush member 15 installed on the first cleaning drive seat 11 changes accordingly, so that cleaning can be performed at different positions, and the adjustment is more convenient.

[0058] Preferably, there are two guide rods 21, and the swing arm 1 is equipped with a pair of fixed seats 24 arranged at intervals. The guide rod 21 is installed between the two fixed seats 24. By adopting a double guide rod 21 structure, the process and stability of the position adjustment of the first cleaning drive seat 11 are further improved.

[0059] Preferably: the swing arm 1 is provided with a clamp for the first cleaning drive seat 11 after the position is adjusted. After the first cleaning drive seat 11 moves, the clamp can be inserted into the first cleaning drive seat 11 to prevent the first cleaning drive seat 11 from continuing to move, thereby ensuring its position stability.

[0060] A support block 25 is installed on the top of the first cleaning drive seat 11, and a shielding plate 26 is installed on the support block 25. The shielding plate 26 can shield the first cleaning drive seat 11 and the driving motor 13 installed on the first cleaning drive seat 11. The shielding plate 26 can prevent the driving motor 13 from getting wet when it rains, thereby protecting the driving motor 13 and extending its service life.

[0061] Preferably, the drive motor 13 is a brushless motor. The friction of the brushless motor is greatly reduced during operation, the operation is smooth, the noise is much lower, and the maintenance cost is low. When necessary, only some dust removal maintenance is required.

[0062] The first cleaning drive seat 11 is provided with a motor frame 12 for supporting the drive motor 13 , and the side of the motor frame 12 is fixedly connected to the first cleaning drive seat 11 , and the motor frame 12 can be fixedly installed in the first cleaning drive seat 11 by bolts, thereby achieving fixed installation of the drive motor 13 .

[0063] The support plate 16 is formed with a connecting vertical plate 17 which is movably connected to the first cleaning drive seat 11. The connecting vertical plate 17 is arranged vertically to the support plate 16. The connecting vertical plate 17 is formed with a driving hole 18 for the cleaning shaft 14 to pass through. The driving hole 18 is installed with a rolling bearing 19 which is coaxially aligned with the cleaning shaft 14 and for the cleaning shaft 14 to pass through. The cleaning shaft 14 is led out from the driving motor 13, passes through the rolling bearing 19, and is connected to the brush member 15, so that the brush member 15 can rotate. The rolling bearing 19 arranged on the support plate 16 can improve the rotation stability of the cleaning shaft 14.

[0064] Preferably, the connecting vertical plate 17 is movably connected to the first cleaning drive seat 11 through an axial hole, so that the supporting plate 16 can move left and right within a certain range.

[0065] The positioning seat 3 is provided with a connecting screw 31, and the connecting screw 31 is installed with a locking nut 32. One end of the tension spring 33 is nested in the connecting screw 31. The support plate 16 is provided with a tension spring 33 connected to one end. The tension spring 33 can be disassembled through the hook part 34 and replaced with a tension spring 33 with different elastic force. The disassembly is convenient. The elastic force of the tension spring 33 can slightly deflect the supporting vertical plate inward, so that the brush part 15 installed on the cleaning shaft 14 keeps in contact with the side wall of the sedimentation tank, and the cleaning is cleaner.

[0066] The first driving member is arranged on the front side wall of the swing arm 1, and the second driving member 40 is arranged on the rear side wall of the swing arm 1. The transmission structure of the second driving member 40 is the same as the transmission structure of the first driving member; therefore, a second cleaning driving seat 50 is adopted, and the second cleaning driving member is provided with a driving motor. The rotating rubber disc 41 is also driven by the driving motor to rotate the shaft body, so that the rotating rubber disc 41 rotates. The rotating rubber disc 41 is formed by rubber material, and the brush block 42 installed on the rotating rubber disc 41 rotates to contact the lateral wall of the sedimentation tank to achieve the removal of moss.

[0067] Similarly, the swing arm 1 is equipped with an adjusting mechanism for adjusting the position of the second cleaning drive seat 50. The adjusting structure can adjust the position of the second cleaning drive seat 50 to facilitate cleaning at different positions.

[0068] It should be noted that the sedimentation tank has a plurality of annular grooves on its periphery, and a partition wall is provided between two adjacent annular grooves. The bottom surface of the rotating rubber disc 41 can contact the top wall of the partition wall to clean the moss on the top wall of the partition wall.

[0069] A third cleaning mechanism 43 is arranged along the swing arm 1, and the third cleaning mechanism 43 includes a driving arm 51 connected to the swing arm 1 and capable of being swung laterally. A first cleaning rod 44 and a second cleaning rod 45 arranged longitudinally are installed along the driving arm 51, and a moss scraper 46 in contact with the lateral wall of the sedimentation tank is installed at the bottom of the first cleaning rod 44 and the second cleaning rod 45; when the swing arm 1 makes a swinging motion, the first cleaning rod 44 and the second cleaning rod 45 make a circular motion, and the moss scraper 46 can scrape the moss on the bottom wall of the sedimentation tank to ensure the cleanliness of the annular groove.

[0070] Preferably, the first cleaning rod 44 is close to the corners of the sedimentation tank, and a connecting rod 47 and a connecting spring 48 are provided between the driving arm 51 and the swing arm 1. The elastic force of the connecting spring 48 can drive the moss scraper 46 at the outer end to the corners of the sedimentation tank, and the driving arm 51 will move slightly outward so that the moss scraper 46 of the first cleaning rod 44 contacts the corners of the bottom wall of the sedimentation tank. When the first cleaning rod 44 makes a circular motion, the moss scraper 46 can clean the moss in the dead corners of the bottom wall of the sedimentation tank.

[0071] Preferably, the second cleaning rod 45 is installed with a compression spring 49 that drives the moss scraper plate 46 to elastically contact the lateral wall of the sedimentation tank. Under the elastic drive of the compression spring 49, the moss scraper plate 46 will buffer downward and elastically contact the bottom wall of the sedimentation tank. When the second cleaning rod 45 makes a circular motion, the moss scraper plate 46 maintains frictional contact with the bottom wall of the sedimentation tank, and the performance of removing moss is relatively stable.

[0072] The swing arm 1 is provided with a cooling mechanism 6, which includes a cooling sliding seat 64 that moves along the length direction of the swing arm 1, a rotatable cooling driving seat 7 is installed on the top of the cooling sliding seat 64, and the left and right sides of the cooling driving seat 7 are respectively provided with first cooling components 701 that can be extended, and the front and rear sides of the cooling driving seat 7 are respectively provided with spray components 702 that can be extended; when some mechanisms and equipment generate high temperature during operation, the cooling mechanism 6 works, the cooling sliding seat 64 moves to the top of the corresponding mechanism, and the first cooling component 701 and the spray component 702 installed on the cooling driving seat 7 work, the first cooling component 701 and the spray component 702 can be rotated to be vertically aligned with the corresponding mechanism, the first cooling component 701 can spray low-temperature water to cool the mechanism, thereby extending the service life of the mechanism, and the mechanism can be the first cleaning mechanism 10, the second cleaning structure 4 and the third cleaning mechanism 43.

[0073] In addition, when the spraying component 702 is working, it can spray out a liquid with an iron salt flocculant, which reacts chemically with the sewage in the sedimentation tank. The hydrolysis process consumes the alkalinity in the water and reduces the pH value of the water. When ferrous sulfate is used, it can oxidize ferrous ions into ferric ions under certain conditions (such as aeration oxidation) to better play the flocculation effect. They have a good effect on the treatment of wastewater containing heavy metal ions such as printing and dyeing wastewater and electroplating wastewater, because some heavy metals can also be removed by coprecipitation during the flocculation process.

[0074] Since the sedimentation tank has multiple annular groove tanks, the spraying assembly 702 can move radially in the sedimentation tank through different annular groove tanks, add chemicals to the sewage that needs to accelerate the sedimentation of suspended particles, increase the reaction speed, and improve the sewage treatment efficiency.

[0075] Preferably, a cross beam 61 is installed between the head and tail ends of the swing arm 1, the cross beam 61 is located above the swing arm 1, a guide slot 63 is formed along the length of the bottom of the cross beam 61, and a guide screw 62 controlled by a motor is arranged below the cross beam 61; a guide slide 65 slidingly matched with the guide slot 63 and a guide screw sleeve 66 slidingly matched with the guide screw 62 are installed at the bottom of the cooling sliding seat 64; a rotating motor 67 is installed at the top of the cooling sliding seat 64, and the driving end of the rotating motor 67 is connected to the cooling drive seat 7, and the cooling drive seat 7 is driven and matched with the rotating guide screw 62 through the guide screw sleeve 66 of the guide slide 65, so that the cooling sliding seat 64 can move along the length direction of the cross beam 61, and the moving range can cover the first cleaning mechanism 10, the second cleaning structure 4 and the third cleaning mechanism 43. The cooling area is increased, and the moving range of the spray port 715 is also increased, so that the iron salt flocculant can be sprayed to the sedimentation ring pool in different areas.

[0076] A liquid storage chamber 71 for storing low-temperature water is provided in the cooling drive seat 7, a liquid inlet 72 communicating with the liquid storage chamber 71 is provided on the top of the cooling drive seat 7, a pair of pipe connectors 73 are installed on the liquid inlet 72, a water supply pump 74 for supplying low-temperature water is provided on the main drive member, a first water supply hose 68 and a flocculant liquid supply pipe 69 for liquid flow are arranged between the water supply pump 74 and the pipe connector 73, the first water supply hose 68 and the flocculant liquid supply pipe 69 both pass the corresponding liquid into the pipe connector 73 of the liquid inlet 72, and a first water connection joint 75 and a second water connection joint 711 are provided in the liquid storage chamber 71. One of the pipe connectors 73 is communicated with the first water connection joint 75, and the other pipe connector 73 is communicated with the second water connection joint 711.

[0077] Specifically, the first cooling component 701 includes a first movable groove 76 formed laterally on the cooling drive seat 7, and the first movable groove 76 is slidably installed with a first water spray seat 77. The first movable groove 76 is connected to the liquid storage chamber 71, and the first water supply joint 75 is connected to the first water spray seat 77 with a first water supply pipe 78; a first water supply pipe 78 is arranged in the first water spray seat 77, and a first water spray port 79 connected to the first water supply pipe 78 is installed at the bottom of the first water spray seat 77; in this embodiment, low-temperature water of the first water supply hose 68 is introduced into the first water spray seat 77 through the first water connection joint 75, and cooling water is sprayed downwardly through the first water spray port 79 installed to achieve cooling of the mechanism. In addition, the liquid storage chamber 71 is formed with a sliding support plate 703 for supporting the first water spray seat 77. The first water spray seat 77 is supported by the sliding support plate 703, so that the first water spray seat 77 can be retracted and extended laterally. When in use, it can be extended outward, and when not in use, it can be retracted.

[0078] Specifically, the spraying assembly 702 includes a second movable groove 710 formed transversely on the cooling drive seat 7, a spraying seat 712 is slidably mounted on the second movable groove 710, the second movable groove 710 is connected to the liquid storage chamber 71, and the second water connection joint 711 is connected to the spraying seat 712 through a second drug supply pipe 713; a second drug supply flow pipe 714 is arranged in the spraying seat 712, and a spraying port 715 connected to the second drug supply flow pipe 714 is installed at the bottom of the spraying seat 712; In the embodiment, the low-temperature water of the flocculant supply pipe 69 is passed into the spraying seat 712 through the second water connection 711, and the cooling water is sprayed downward by the spraying port 715 installed to achieve cooling of the mechanism. In addition, the liquid storage chamber 71 is formed with a sliding support plate 703 for supporting the spraying seat 712. The support of the spraying seat 712 by the sliding support plate 703 enables the spraying seat 712 to be horizontally retractable. When in use, it can be extended outward, and when not in use, it can be retracted. The angle can be adjusted by horizontal rotation. The first cooling component 701 cooperates with the spraying component 702. The cooling drive seat 7 can move along the length direction of the swing arm 1 to spray the agent to multiple areas or different areas, increase the reaction speed, improve the sewage treatment efficiency, and also cool the corresponding mechanism to spray cooling water.

[0079] Furthermore, when the cooling drive seat 7 moves in the length direction of the swing arm 1, the first water supply hose 68 and the flocculant liquid supply pipe 69 may be dragged. When the hose is too long, the hose will fall down. When the hose is too short, the hose will be stretched and broken. In this regard, a hose support mechanism 8 for the first water supply hose 68 and the flocculant liquid supply pipe 69 is provided at one end of the swing arm 1 close to the main drive member; the hose support mechanism 8 includes a support drive seat 80, and the support drive seat 80 is equipped with a first rotating reel 81 for winding the first water supply hose 68 and a second rotating reel 82 for winding the flocculant liquid supply pipe 69. The rotating reel 81 and the second rotating reel 82 rotate respectively; in this embodiment, when the cooling drive seat 7 is away from the hose support mechanism 8, the first rotating reel 81 and the second rotating reel 82 rotate accordingly to unwind the first water supply hose 68 and the flocculant supply pipe 69; conversely, when the cooling drive seat 7 is close to the hose support mechanism 8, the first rotating reel 81 and the second rotating reel 82 rotate accordingly to rewind the first water supply hose 68 and the flocculant supply pipe 69 to prevent the pipeline from falling or being stretched and tightened, thereby effectively protecting the first water supply hose 68 and the flocculant supply pipe 69.

[0080] Preferably, it should be noted that since a pair of pipe connectors 73 are installed at the liquid inlet 72, and there is a certain distance between the two pipe connectors 73, when the cooling drive seat 7 rotates, the distances between the two pipe connectors 73 and the hose support mechanism 8 will be different, one of which is longer and the other is shorter. At this time, the lengths of the first water supply hose 68 and the flocculant liquid supply pipe 69 need to be adjusted respectively. In this regard, the hose support mechanism 8 also includes a rotating drive mechanism for driving the first rotating reel 81 and the second rotating reel 82 to rotate, the rotating drive mechanism includes a first driving shaft 83 that can rotate and a first fixed sleeve 86 sleeved on the first driving shaft 83, the first rotating reel 81 is sleeved on the first fixed sleeve 86; the first driving shaft 83 is formed with a hollow driving hole 85 with a hollow structure, the hollow driving hole 85 is movably installed with a second driving shaft 84 that can rotate, the outer end of the second driving shaft 84 is sleeved with a second fixed sleeve 87, and the second rotating reel 82 is sleeved on the first fixed sleeve 86; wherein the hollow driving hole 85 is installed with a plurality of movable bearings 88 coaxially sleeved on the second driving shaft 84; the second driving shaft 84 is also sleeved with a plane bearing 89 located between the first fixed sleeve 86 and the second fixed sleeve 87.

[0081] In this embodiment, when the first drive shaft 83 rotates, with the cooperation of the movable bearing 88, the second drive shaft 84 will not be affected and can rotate independently. Therefore, when the first drive shaft 83 rotates, it can drive the first rotating reel 81 to rotate and reel the first water supply hose 68. When the second drive shaft 84 rotates, it can drive the second rotating reel 82 to rotate and reel the flocculant liquid supply pipe 69. In addition, the outer diameters of the first fixed sleeve 86 and the second fixed sleeve 87 are the same, and a plane bearing 89 is used for separation to ensure that the first fixed sleeve 86 and the second fixed sleeve 87 are independent of each other when rotating. It should be noted that a belt transmission mechanism is provided in the support drive seat 80 to be connected to the first drive shaft 83, thereby driving the first drive shaft 83 to rotate, and the second drive shaft 84 is coaxially connected to the motor to realize the rotation of the second drive shaft 84.

[0082] In addition, a pair of guide rods are arranged along the length direction of the cross beam 61, and the guide rod sleeve is provided with a movable sliding sleeve, and the movable sliding sleeve is installed with a through sleeve for the first water supply hose 68 or the flocculant supply pipe 69 to pass through, and the through sleeve can further reduce the probability of the first water supply hose 68 or the flocculant supply pipe 69 falling; the movable sliding sleeve can slide along the length direction of the guide rod, and when the cooling drive seat 7 is away from the hose support mechanism 8, the first water supply hose 68 or the flocculant supply pipe 69 can pass through the through sleeve to unwind or wind, thereby ensuring a stable supply of liquid.

[0083] Preferably, the iron salt flocculant can be replaced by a disinfectant or a water purifier. According to the type and requirements of the sedimentation tank, the corresponding agent can be selected, and one or two of them can be selected for treatment.

[0084] Disinfectants can decompose some organic pollutants in sewage. Take ozone as an example. It is a strong oxidant. In the sedimentation tank, ozone can react with some difficult-to-degrade organic compounds in sewage. These organic compounds may come from industrial wastewater discharge, agricultural runoff, etc., such as organic pollutants containing benzene ring structures, phenolic substances, etc. Ozone can oxidize these organic pollutants into relatively harmless substances such as small molecular organic acids, carbon dioxide and water, thereby reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of sewage, helping to improve the water quality of sewage, making it easier for subsequent treatment or meeting emission standards.

[0085] During the coagulation and precipitation process, the water purifier can remove some pollutants in the sewage at the same time. In addition to suspended particles, some heavy metal ions (such as mercury, cadmium, lead, etc.) and organic matter dissolved in the water can also be adsorbed on the flocs formed by coagulation. Taking the iron salt water purifier as an example, the iron hydroxide colloid produced during the hydrolysis process can not only coagulate suspended particles, but also remove heavy metals such as arsenic in the water by adsorption and co-precipitation. For some pollutants such as organic dyes, they can also be wrapped in the floc formation process and settle to the bottom of the pool with the flocs, thereby reducing the concentration of pollutants in the sewage.

[0086] Among them, a three-way joint is installed at one end of the flocculant supply pipe 69 close to the water supply pump, one of the joints is connected to the water supply pump, and the other joint is connected to the medicine box, which is filled with flocculants, water purifiers or disinfectants. The flocculant is introduced into the flocculant supply pipe 69 through the three-way joint, and then supplied to the dosing component 702 through the liquid flow of the water supply pump, so that the medicine can be added continuously to achieve sewage treatment.

[0087] The support drive seat 80 is also equipped with a pipe loading box 90 that cooperates with the first rotating reel 81 and the second rotating reel 82. A portion of the first water supply hose 68 or the flocculant liquid supply pipe 69 is accumulated in the pipe loading box 90. When the first rotating reel 81 and the second rotating reel 82 are wound, a portion of the pipe will be unwound back to the pipe loading box 90 at the same time. Conversely, when unwinding, a portion of the pipe in the pipe loading box 90 will be wound onto the first rotating reel 81 or the second rotating reel 82 to ensure stable water supply in the pipeline.

[0088] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0089] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A robot for cleaning sedimentation tanks in urban sewage treatment plants, characterized by: The cleaning robot comprises a main driving member installed in the center of the circular sedimentation tank and a swing arm with one end connected to the main driving member by transmission, and the swing arm can swing around the main driving member. The swing arm is provided with a first cleaning mechanism and a second cleaning mechanism along the way; The swing arm is provided with a cooling mechanism, which includes a cooling sliding seat that moves along the length direction of the swing arm, a rotatable cooling driving seat is installed on the top of the cooling sliding seat, and the left and right sides of the cooling driving seat are respectively provided with a first cooling component that can be extended, and the front and rear sides of the cooling driving seat are respectively provided with a spraying component that can be extended; The cooling drive seat is provided with a liquid storage cavity for storing low-temperature water, the cooling drive seat is provided with a liquid inlet connected to the liquid storage cavity at the top, the liquid inlet is installed with a pair of pipe connectors, the main driving member is provided with a water supply pump for supplying low-temperature water, a first water supply hose and a flocculant liquid supply pipe for liquid flow are arranged between the water supply pump and the pipe connector, the first water supply hose is connected to one of the pipe connectors, and the flocculant liquid supply pipe is connected to the other pipe connector; The first water supply hose is used for cooling water to pass through, and the flocculant liquid supply pipe is used for liquid containing flocculant to pass through; the medicine spraying assembly includes a medicine spraying seat arranged on the cooling drive seat, a medicine spraying port is installed at the bottom of the medicine spraying seat, and a three-way joint is installed at one end of the flocculant liquid supply pipe close to the water supply pump, one of the joints is connected to the water supply pump, and the other joint is connected to the medicine box, and the medicine box is filled with flocculant, and the flocculant is passed into the flocculant liquid supply pipe through the three-way joint; The end of the swing arm close to the main driving member is provided with a hose support mechanism for the first water supply hose and the flocculant liquid supply pipe. The hose support mechanism includes a support drive seat, and the support drive seat is equipped with a first rotating reel for winding the first water supply hose and a second rotating reel for winding the flocculant liquid supply pipe. The first rotating reel and the second rotating reel rotate respectively; The first cleaning mechanism includes a first driving member and a brush member rotatably mounted on a driving end of the first driving member, the brush member can contact the lateral wall of the sedimentation tank, the first driving member includes a first cleaning driving seat capable of adjusting a position along the length direction of the swing arm, the first cleaning driving seat is mounted with a driving motor, and a cleaning shaft is mounted on the driving end of the driving motor; The second cleaning mechanism includes a second driving member and a rotating rubber disc rotatably mounted on a driving end of the second driving member. The rotating rubber disc is arranged transversely to contact the transverse wall of the sedimentation tank, and a brush block is mounted on the bottom of the rotating rubber disc.

2. The sedimentation tank cleaning robot for urban domestic sewage treatment plants according to claim 1, characterized in that: A cross beam is installed between the head and tail ends of the swing arm, the cross beam is located above the swing arm, a guide groove is formed along the length of the bottom of the cross beam, a guide screw is arranged below the cross beam, a guide slide that slides with the guide groove and a guide screw sleeve that slides with the guide screw are installed at the bottom of the cooling sliding seat; a rotating motor is installed on the top of the cooling sliding seat, the driving end of the rotating motor is connected to the cooling driving seat, and a first water connection joint and a second water connection joint are arranged in the liquid storage chamber.

3. The sedimentation tank cleaning robot for urban domestic sewage treatment plants according to claim 2, characterized in that: The first cooling component includes a first movable groove laterally formed on the cooling drive seat, a first water spray seat is slidably installed in the first movable groove, the first movable groove is connected to the liquid storage chamber, and the first water supply pipe is connected to the first water spray seat by the first water connection joint; a first water supply pipe is arranged in the first water spray seat, a first water spray port connected to the first water supply pipe is installed at the bottom of the first water spray seat, and a sliding support plate for supporting the first water spray seat is formed in the liquid storage chamber.

4. The sedimentation tank cleaning robot for urban domestic sewage treatment plants according to claim 3 is characterized in that: The spray assembly includes a second movable groove laterally formed on the cooling drive seat, the second movable groove is slidably mounted with the spray seat, the second movable groove is connected to the liquid storage chamber, the second water connection joint is connected to the spray seat via a second drug supply pipe; a second drug supply flow pipe is arranged in the spray seat, and the spray port connected to the second drug supply flow pipe is installed at the bottom of the spray seat.

5. The sedimentation tank cleaning robot for urban domestic sewage treatment plants according to claim 4 is characterized in that: The hose support mechanism also includes a rotation driving mechanism for driving the first rotating reel and the second rotating reel to rotate, the rotation driving mechanism includes a first driving shaft capable of rotating and a first fixed sleeve sleeved on the first driving shaft, the first rotating reel is sleeved on the first fixed sleeve; the first driving shaft is formed with a hollow driving hole with a hollow structure, the hollow driving hole is movably equipped with a second driving shaft capable of rotating, the outer end of the second driving shaft is sleeved with a second fixed sleeve, and the second rotating reel is sleeved on the first fixed sleeve; wherein the hollow driving hole is equipped with a plurality of movable bearings coaxially sleeved on the second driving shaft; the second driving shaft is also sleeved with a plane bearing located between the first fixed sleeve and the second fixed sleeve.

6. The sedimentation tank cleaning robot for urban domestic sewage treatment plants according to claim 1 or 5, characterized in that: A positioning seat is arranged along the swing arm, a support plate for positioning the cleaning shaft is arranged under the driving motor, and a tension spring is arranged obliquely between the support plate and the positioning seat to drive the brush member to fit the side wall of the sedimentation tank; the swing arm is equipped with an adjusting mechanism for adjusting the position of the first cleaning drive seat, the adjusting mechanism includes a guide rod arranged along the length direction of the swing arm, the first cleaning drive seat is equipped with a guide sliding block, the guide sliding block is formed with a guide hole that slides with the guide rod, the swing arm is equipped with a pair of fixed seats arranged at intervals, and the guide rod is installed between the two fixed seats.

7. The sedimentation tank cleaning robot for urban domestic sewage treatment plants according to claim 6, characterized in that: A support block is installed on the top of the first cleaning drive seat, and a shielding plate is installed on the support block. The shielding plate can shield the first cleaning drive seat and the driving motor installed on the first cleaning drive seat, and the driving motor is a brushless motor; the first cleaning drive seat is provided with a motor frame for supporting the driving motor, and the side of the motor frame is fixedly connected to the first cleaning drive seat, and the support plate is formed with a connecting vertical plate connected to the first cleaning drive seat, and the connecting vertical plate is arranged vertically to the support plate, and the connecting vertical plate is formed with a driving hole for the cleaning shaft to pass through, and the driving hole is installed with a rolling bearing coaxially aligned with the cleaning shaft and for the cleaning shaft to pass through.

8. The sedimentation tank cleaning robot for urban domestic sewage treatment plants according to claim 7, characterized in that: The first driving member is arranged on the front side wall of the swing arm, and the second driving member is arranged on the rear side wall of the swing arm. The transmission structure of the second driving member is the same as the transmission structure of the first driving member. A third cleaning mechanism is arranged along the swing arm, and the third cleaning mechanism includes a driving arm that can be connected to the swing arm in a transverse swing. The driving arm is provided with longitudinally arranged first and second cleaning rods. The bottom of the first and second cleaning rods are provided with moss scraping plates that contact the transverse wall of the sedimentation tank.

9. The sedimentation tank cleaning robot for urban domestic sewage treatment plants according to claim 8, characterized in that: The first cleaning rod is close to the corner of the sedimentation tank, and the second cleaning rod is equipped with a compression spring which drives the moss scraper plate to elastically contact with the transverse wall of the sedimentation tank.

10. The sedimentation tank cleaning robot for urban domestic sewage treatment plants according to claim 9, characterized in that: A connecting rod and a connecting spring are arranged between the driving arm and the swing arm, and the elastic force of the connecting spring can drive the moss scraping plate at the outer end to approach the corner of the sedimentation tank.