Cleaning device for inclined pipe of sedimentation tank

Abstract

The utility model relates to a settling pond inclined pipe cleaning device which comprises a driving system, a mud suction system and a control system, the control system is electrically connected with the driving system and the mud suction system respectively, and the driving system is controlled by the control system to drive the mud suction system to clean the inclined pipe according to preset starting time and working duration. The sludge suction system is driven to reciprocate in the sedimentation tank and above an inclined pipe in the sedimentation tank; under the control of the control system, the sludge suction system achieves timely and effective cleaning of floating sludge on the surface of the inclined pipe of the sedimentation tank, the inclined pipe cannot be damaged, the service life of the inclined pipe is prolonged, and the production cost of an enterprise is greatly reduced. According to the utility model, the design is practical and simple, the maintenance amount is small, the operation cost is low, an automatic control system is adopted, the labor intensity is greatly reduced, the accident of manual operation is avoided, the safety is effectively improved, continuous operation can be realized under the condition of unmanned control, and the performance is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification treatment, in particular to a cleaning device for inclined tubes in a sedimentation tank. Background Art

[0002] A water purification treatment plant needs to regularly clean the floating sludge on the surface of the inclined tubes in the inclined tube sedimentation area of a horizontal flow sedimentation tank. The traditional method requires draining all the water in the entire sedimentation tank and then using a high-pressure water gun to wash the inclined tubes.

[0003] However, since most of the commonly used inclined tubes on the market are made of polypropylene plastic, this material will show phenomena such as aging, fracture, embrittlement, and chip shedding after long-term use. During the cleaning process, due to the impact force of the high-pressure water gun, the inclined tubes are often damaged or directly scrapped, and the inclined tubes need to be repaired or replaced. Both repair and replacement require a large amount of manpower, and the sedimentation tank needs to stop working and cannot operate normally. Moreover, the cost of the inclined tubes is particularly high, which will bring huge economic losses to the water plant and greatly increase the operating cost of the enterprise. Content of the Utility Model

[0004] In order to solve the above problems existing in the prior art, the utility model provides a cleaning device for inclined tubes in a sedimentation tank. The technical problems to be solved by the utility model are realized through the following technical solutions:

[0005] A cleaning device for inclined tubes in a sedimentation tank includes a driving system, a sludge suction system, and a control system. Among them, the control system is electrically connected to the driving system and the sludge suction system respectively. Under the control of the control system, the driving system drives the sludge suction system to reciprocate above the inclined tubes in the sedimentation tank according to a preset start time and working duration; under the control of the control system, the sludge suction system cleans the floating sludge on the upper surface of the inclined tubes.

[0006] In a specific embodiment of the utility model, the driving system includes a motor reducer arranged outside the sedimentation tank. A first transmission gear is arranged at the output end of the motor reducer. A first transmission shaft is horizontally arranged transversely on the front side wall of the sedimentation tank. A second transmission shaft is arranged at the same height on the rear side wall of the sedimentation tank corresponding to the first transmission shaft. One end of the transmission shaft on the front side wall is provided with a second transmission gear. The second transmission gear is directly below the first transmission gear, and the two are connected by a secondary chain. A third transmission gear is fixedly arranged at both ends of the first transmission shaft and the second transmission shaft respectively.

[0007] The first drive shaft and the second drive shaft are respectively connected by main chains between the two third drive gears on the left side and the two third drive gears on the right side. A C-shaped track is horizontally laid between the two third drive gears on the same side, so that the lower side chain of the main chain passes through the C-shaped steel track during operation.

[0008] In a specific embodiment of the present invention, the sludge suction system includes a submersible sewage pump. A housing is provided around the submersible sewage pump. A chamber is provided between the housing and the pump body of the submersible sewage pump. A through hole is opened on the top surface and the lower side surface of the housing respectively. The water outlet of the submersible sewage pump passes through the through hole on the top surface and is sealed with the through hole.

[0009] In a specific embodiment of the present invention, the sludge suction system further includes a sludge suction pipe. The sludge suction pipe includes a main sludge suction pipe and a branch sludge suction pipe. The front end of the main sludge suction pipe is in a "U" shape, horizontally installed on both sides of the sedimentation tank and above the water surface, and the rear end is connected to the through hole opened on the lower side surface of the housing, and the connection part is completely sealed.

[0010] The two ports of the "U"-shaped sludge suction pipe are in a closed state. Two through holes are respectively opened at the relative positions of the two parallel pipes of the "U"-shaped sludge suction pipe. One end of the branch sludge suction pipe is tightly connected to the through hole, and the other end is connected to a sludge suction device. The material of the branch sludge suction pipe is a soft and bendable material.

[0011] In a specific embodiment of the present invention, the sludge suction device is a hollow tubular shape, closed at both ends, and there are two groups, which are respectively horizontally and parallelly arranged above the inclined pipes in the sedimentation tank. The bottom surface of the sludge suction device is provided with sludge suction holes at intervals. A horn-shaped baffle is arranged around each sludge suction hole. The distance between the two groups of sludge suction devices is set to be half of the length of the sedimentation tank. Two through holes are respectively opened at the symmetrical positions on the upper surfaces of the two groups of sludge suction devices, and the through holes are connected to the branch sludge suction pipes.

[0012] Sliding devices are respectively arranged at both ends of the sludge suction device. The sliding device includes two sliding wheels and a rectangular sliding frame. The two sliding wheels are arranged in the sliding frame in a front-back arrangement and are fixedly connected to the inner side of the sliding frame. The sliding device is inserted into the C-shaped track, so that the sliding wheels can slide back and forth on the inner bottom surface of the C-shaped track. One side of the sliding frame located in the C-shaped track is fixedly connected to the main chain passing through the C-shaped track, and two through holes are opened on the outer side surface of the sliding frame.

[0013] Both ends of the sludge suction device are respectively provided with connecting plates. Long strip-shaped through holes are opened at the left and right symmetric positions of the connecting plates. Bolts are used to pass through the long strip-shaped through holes and are tightly connected to the through holes opened on the outer side surface of the sliding frame. The long strip-shaped through holes are used for the up and down adjustment of the sludge suction device.

[0014] In a specific embodiment of the present utility model, the control system includes an electric control box and a limit device. The limit device includes a first limit device and a second limit device. The first limit device and the second limit device are respectively arranged at the front and rear ends of the sedimentation tank. The limit device includes a limit rod and a limit switch. The limit switch is arranged outside the sedimentation tank and is connected to the upper end of the limit rod. The lower end of the limit rod is vertically inserted into the sedimentation tank, and the lower end surface of the limit rod and the bottom surface of the sludge suction device are located on the same horizontal plane.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] By setting the inclined tube cleaning device for the sedimentation tank, the drive system, the sludge suction system and the control system are effectively coordinated, realizing the timely and effective cleaning of the floating sludge on the surface of the inclined tubes of the sedimentation tank, and will not cause damage to the inclined tubes, extending the service life of the inclined tubes, and greatly reducing the production cost of the factory.

[0017] The design of the present utility model is practical and simple, with small maintenance amount and low operation cost. And it adopts an automatic control system, greatly reducing the labor intensity, avoiding the accident of manual operation, effectively improving the safety, realizing continuous operation under the condition of unmanned control, and having stable and reliable performance. Description of the Drawings

[0018] Figure 1 It is a principle block diagram of the inclined tube cleaning device provided by the embodiment of the present utility model;

[0019] Figure 2 It is a structural schematic diagram of the inclined tube cleaning device provided by the embodiment of the present utility model;

[0020] Figure 3 It is a top view of the structure of the inclined tube cleaning device provided by the embodiment of the present utility model;

[0021] Figure 4 It is a top view of the sludge suction system provided by the embodiment of the present utility model;

[0022] Figure 5 It is a cross-sectional view of the sludge suction device provided by the embodiment of the present utility model;

[0023] Figure 6 It is a side view of the sludge suction device provided by the embodiment of the present utility model;

[0024] Figure 7Cross-sectional view of the submersible sewage pump housing provided by the embodiment of the present utility model;

[0025] Figure 8 Side view of the sliding device provided by the embodiment of the present utility model;

[0026] In the figure, 100 - drive system; 200 - sludge suction system; 300 - control system; 101 - motor reducer; 102 - first transmission gear; 103 - second transmission gear; 104 - third transmission gear; 105 - first transmission shaft; 106 - second transmission shaft; 107 - auxiliary chain; 108 - C-shaped track; 109 - main chain; 110 - sliding wheel; 111 - sliding frame; 201 - submersible sewage pump; 202 - housing; 203 - chamber; 204 - main sludge suction pipe; 205 - branch sludge suction pipe; 206 - sludge suction device; 207 - sludge suction hole; 208 - flared baffle; 209 - connecting plate; 210 - long strip-shaped through hole; 211 - inclined pipe; 301 - limit switch; 302 - limit rod. Detailed implementation manners

[0027] The following further describes the present utility model in detail in conjunction with specific implementation manners, but the implementation manners of the present utility model are not limited thereto.

[0028] As Figure 1 shown, the inclined pipe cleaning device for sedimentation tanks provided by the present utility model includes a drive system 100, a sludge suction system 200 and a control system 300. Among them, the control system 300 is electrically connected to the drive system 100 and the sludge suction system 200 respectively. Under the control of the control system 300, the drive system 100 drives the sludge suction system 200 to reciprocate above the inclined pipes 211 in the sedimentation tank according to a preset start time and working duration; under the control of the control system 300, the sludge suction system 200 cleans the floating sludge on the upper surface of the inclined pipes 211.

[0029] By setting the drive system 100 and the sludge suction system 200, and the two cooperate closely with each other under the control of the control system 300. First, start the drive system 100, and the drive system 100 will drive the sludge suction system 200 to reciprocate in the sedimentation tank. Then start the sludge suction system 200, and the sludge suction system 200 starts to work to absorb and clean the floating sludge on the surface of the inclined pipes 211 in the sedimentation tank, and the opening time and working duration can be preset according to the monitored floating sludge amount on the surface of the inclined pipes 211, so as to achieve the purpose of timely and effective cleaning of the floating sludge on the surface of the inclined pipes 211.

[0030] The following explains each part involved in the present utility model through specific examples.

[0031] As Figure 2As shown in the figure, the drive system 100 of the embodiment of the present utility model includes a motor reducer 101 disposed outside the sedimentation tank. A first transmission gear 102 is provided at the output end of the motor reducer 101. A first transmission shaft 105 is horizontally disposed at the front side wall of the sedimentation tank in the transverse direction. A second transmission shaft 106 is disposed at the same height at the rear side wall of the sedimentation tank corresponding to the first transmission shaft 105. A second transmission gear 103 is provided at one end of the transmission shaft at the front side wall. The second transmission gear 103 is directly below the first transmission gear 102, and the two are connected by a sub-chain 107. Third transmission gears 104 are fixedly provided at both ends of the first transmission shaft 105 and the second transmission shaft 106 respectively.

[0032] As Figure 3 shown, in the specific embodiment of the present utility model, the two third transmission gears 104 on the left side of the first transmission shaft 105 and the two third transmission gears 104 on the right side are respectively connected by a main chain 109. A C-shaped track 108 is horizontally laid between the two third transmission gears 104 on the same side, so that the lower side chain of the main chain 109 passes through the C-shaped track 108 during operation.

[0033] Specifically, at a pool corner at the front end outside the sedimentation tank, a motor reducer 101 is provided, so that the output end of the motor reducer 101 is suspended above the water surface at the pool corner. A first transmission gear 102 is installed at the output end. A first transmission shaft 105 is horizontally disposed at the front side wall of the sedimentation tank in the transverse direction. A second transmission shaft 106 is disposed at the same height above the inclined tube 211 in the sedimentation tank and corresponding to the first transmission shaft 105 at the rear side wall. A second transmission gear 103 is provided at one end of the first transmission shaft 105, that is, the end below the first transmission gear 102. The first transmission gear 102 and the second transmission gear 103 are connected and driven by a sub-chain 107.

[0034] In a specific embodiment of the present utility model, a third transmission gear 104 is respectively arranged at both ends of the first transmission shaft 105 and the second transmission shaft 106, and a C-shaped track 108 is respectively arranged on the left and right side walls of the sedimentation tank, and the C-shaped track 108 is located between the front and rear third transmission gears 104 on the same side of the first transmission shaft 105 and the second transmission shaft 106, and its length is close to the distance between the front and rear third transmission gears 104, but there is a gap between the front and rear third transmission gears 104, and the front and rear third transmission gears 104 on the same side are connected by a main chain 109 for transmission, and when the main chain 109 rotates, a single side located below passes through the C-shaped track 108, that is, when the front and rear third transmission gears 104 on the same side of the first transmission shaft 105 and the second transmission shaft 106 drive the main chain 109 to rotate, a single side above the main chain 109 passes from the outside and above the C-shaped track 108, and a single side below passes from the inside of the C-shaped track 108.

[0035] When in use, the motor reducer 101 is started, and the first transmission gear 102 on the motor reducer 101 drives the second transmission gear 103 through the secondary chain 107, and the second transmission gear 103 drives the first transmission shaft 105, and the front and rear third transmission gears 104 on the same side of the first transmission shaft 105 and the second transmission shaft 106 start to rotate through the main chain 109. In other words, the two main chains 109 located on the left and right sides of the sedimentation tank rotate simultaneously between the first transmission shaft 105 and the second transmission shaft 106.

[0036] In a specific embodiment of the present invention, the first transmission gear 102, the second transmission gear 103, the third transmission gear 104, the main chain 109, the auxiliary chain 107 and the C-shaped track 108 are all made of steel, preferably 304 stainless steel.

[0037] like Figure 7 As shown, in a specific embodiment of the utility model, the mud suction system 200 includes a submersible sewage pump 201, a shell 202 is arranged on the periphery of the submersible sewage pump 201, a chamber 203 is arranged between the shell 202 and the pump body of the submersible sewage pump 201, a through hole is respectively opened on the top surface and the lower side of the shell 202, and the water outlet of the submersible sewage pump 201 passes through the through hole on the top surface and is sealed between the through hole.

[0038] In a specific embodiment of the utility model, a shell 202 is provided on the periphery of the submersible sewage pump 201, and a chamber 203 is formed between the shell 202 and the pump body. The water outlet of the submersible sewage pump 201 located in the shell 202 passes through a through hole opened on the top surface of the shell 202, and a through hole is also opened on the lower side of the shell 202, which is the water inlet.

[0039] Under normal circumstances, the submersible sewage pump 201 is directly placed in the pool, and the water is sucked away through the water inlet holes located on the entire pump body. This will disperse the overall suction of the submersible sewage pump 201. The function of setting the housing 202 for the pump body of the submersible sewage pump 201 is to concentrate all the suction of the submersible sewage pump 201 at this water inlet on the lower side of the housing 202, thereby improving the suction of the submersible sewage pump 201.

[0040] As Figure 4 shown, in a specific embodiment of the present invention, the sludge suction system 200 further includes a sludge suction pipe. The sludge suction pipe includes a main sludge suction pipe 204 and a branch sludge suction pipe 205. The front end of the main sludge suction pipe 204 is in a "U" shape, horizontally installed on both sides of the sedimentation tank and above the water surface, and the rear end is connected to the through hole opened on the lower side of the housing 202, and the connection part is completely sealed. In a specific embodiment of the present invention, the two ports of the "U" - shaped sludge suction pipe are in a closed state, and two through holes are respectively opened at the relative positions of the two parallel pipes of the "U" - shaped sludge suction pipe; one end of the branch sludge suction pipe 205 is tightly connected to the through hole, and the other end is connected to the sludge suction device 206. The material of the branch sludge suction pipe 205 is a soft and bendable material.

[0041] Specifically, the sludge suction pipe includes a main sludge suction pipe 204 and a branch sludge suction pipe 205. The front end of the main sludge suction pipe 204 is in a "U" shape, horizontally installed on both sides of the sedimentation tank, and the two ports are both in a closed state. The rear end is tightly connected to the water inlet of the housing 202; two through holes are respectively opened at the relative positions of the two parallel pipes of the "U" - shaped sludge suction pipe, and each through hole is respectively connected to a branch sludge suction pipe 205. That is to say, a total of four through holes are opened on the "U" - shaped main sludge suction pipe 204, which are respectively connected to the upper ends of the four branch sludge suction pipes 205, and the two branch sludge suction pipes 205 corresponding to each other on the two parallel sludge suction pipes are respectively connected to a sludge suction device 206. The material of the branch sludge suction pipe 205 is selected as a soft and bendable material because the sludge suction device 206 needs to reciprocate above the inclined pipe 211 in the sedimentation tank under the drive of the drive system 100, and the soft and bendable material is not easy to break or rupture.

[0042] As Figure 5 shown, in a specific embodiment of the present invention, the sludge suction device 206 is a hollow tubular shape with both ends closed, and there are two groups, which are respectively horizontally and parallelly arranged above the inclined pipe 211 in the sedimentation tank. The bottom surface of the sludge suction device 206 is provided with sludge suction holes 207 at intervals, and a horn - shaped baffle 208 is arranged around each sludge suction hole 207. The distance between the two groups of sludge suction devices 206 is set to be half of the length of the sedimentation tank. Two through holes are respectively opened at the symmetrical positions on the upper surfaces of the two groups of sludge suction devices 206, and the through holes are connected to the branch sludge suction pipes 205.

[0043] Specifically, the sludge suction device 206 as a whole is a hollow tube with both ends closed, horizontally and parallelly arranged above the inclined tubes 211 in the sedimentation tank. On the bottom surface of the hollow tube, that is, the side close to the inclined tubes 211, a row of sludge suction holes 207 are intermittently opened. The sludge suction holes 207 are preferably long strip-shaped through holes, and a horn-shaped baffle 208 is arranged around each sludge suction hole 207. It should be noted that in the specific embodiment of the present invention, the sludge suction holes 207 are intermittently arranged instead of penetrating the entire hollow tube to prevent the hollow tube from bursting, and such an arrangement can increase the suction force of the sludge suction device 206; the function of the horn-shaped baffle 208 is to make each sludge suction hole 207 only adsorb the floating sludge within the area of the horn-shaped baffle 208 around itself, so as not to disperse the suction force of the sludge suction holes 207 and effectively improve the overall adsorption capacity of the sludge suction device 206 again.

[0044] As an implementation manner, two groups of sludge suction devices 206 are arranged parallel to each other, and the distance between them is half of the total length of the sedimentation tank. Two through holes are respectively opened on the upper surfaces of the two hollow tubes, that is, a total of four through holes, for connecting the lower ends of the branch sludge suction pipes 205.

[0045] As Figure 8 shown, in the specific embodiment of the present invention, sliding devices are respectively arranged at both ends of the sludge suction device 206. The sliding device includes two sliding wheels 110 and a rectangular sliding frame 111. The two sliding wheels 110 are arranged in the sliding frame 111 in a front-back arrangement and are fixedly connected to the inner side of the sliding frame 111. The sliding device is inserted into the C-shaped track 108, so that the sliding wheels 110 can slide back and forth on the inner bottom surface of the C-shaped track 108. One side of the sliding frame 111 located in the C-shaped track 108 is fixedly connected to the main chain 109 passing through the C-shaped track 108, and two through holes are opened on the outer side surface of the sliding frame 111.

[0046] As Figure 6 shown, in the specific embodiment of the present invention, connecting plates 209 are arranged at both ends of the sludge suction device 206. Long strip-shaped through holes 210 are opened at the left and right symmetric positions of the connecting plates 209. Bolts are used to pass through the long strip-shaped through holes 210 and are tightly connected to the through holes opened on the outer side surface of the sliding frame 111. The long strip-shaped through holes 210 are used for the up and down adjustment of the sludge suction device 206.

[0047] Specifically, a sliding device is provided at both ends of each sludge suction device 206. Each sliding device generally includes a rectangular sliding frame 111 and two sliding wheels 110. The two sliding wheels 110 are arranged front and back and fixed within the sliding frame 111. The sliding frame 111 and the two sliding wheels 110 form an integral unit and are inserted together into the C-shaped track 108, and the sliding wheels 110 can slide back and forth on the inner bottom surface of the C-shaped track 108. The side surface of the sliding frame 111 located within the C-shaped track 108 is fixedly connected to the main chain 109 passing through the C-shaped track 108. That is to say, when the main chain 109 rotates, it can drive the sliding device to slide within the C-shaped track 108.

[0048] As an implementation manner, a connecting plate 209 is respectively connected to both ends of the sludge suction device 206. The connecting plate 209 has two functions: one function is that its lower end can seal the end of the hollow tube, making both ends of the entire hollow tube in a sealed state; the other function is that its upper end is used to connect the sludge suction device 206 with the sliding device. Specifically, a vertically elongated through hole 210 is opened at each of the left and right symmetric positions at the upper end of each connecting plate 209, and bolts are used to pass through this vertically elongated through hole 210 to connect the sludge suction device 206 with the sliding device.

[0049] In a specific embodiment of the present utility model, the function of opening the vertically elongated through hole 210 is to be able to adjust the sludge suction device 206 up and down, so that the distance between the sludge suction device 206 and the inclined tube 211 can be adjusted according to the amount of floating sludge on the surface of the inclined tube 211; at the same time, it is easier to disassemble the sludge suction device 206, facilitating the installation and daily maintenance work of the staff; the distance between the flared baffle 208 at the bottom surface of the sludge suction device 206 and the inclined tube 211 is preferably 10 mm.

[0050] In a specific embodiment of the present utility model, the control system 300 includes an electric control box and a limiting device. The limiting device includes a first limiting device and a second limiting device. The first limiting device and the second limiting device are respectively arranged at the front and rear ends of the sedimentation tank. The limiting device includes a limiting rod 302 and a limit switch 301. The limit switch 301 is arranged outside the sedimentation tank and is connected to the upper end of the limiting rod 302. The lower end of the limiting rod 302 is vertically inserted into the sedimentation tank, and the lower end surface of the limiting rod 302 and the bottom surface of the sludge suction device 206 are located on the same horizontal plane.

[0051] Specifically, the control system 300 includes an electric control box, and electrical components such as a changeover switch, a frequency converter, a timing switch, an air circuit breaker, an AC contactor, a start-stop button, a short-circuit and overload protection device, and a signal lamp are arranged inside the box.

[0052] Specific control methods: It can achieve two control methods, namely "manual on machine" and "automatic on machine", which are realized by operating the changeover switch on the control box on the machine. When the changeover switch is set to "manual on machine", the drive system 100 and the sludge suction system 200 can be separately controlled by manual buttons, and this state is adopted during debugging and maintenance. When the changeover switch is set to "automatic on machine", the drive system 100 and the sludge suction system 200 can be automatically controlled by the start / stop buttons in the box, and the start time and working duration of the drive system 100 and the sludge suction system 200 can be preset through the timing switch, enabling the entire cleaning device to operate automatically.

[0053] In a specific embodiment of the present utility model, the control system 300 further includes a first limit device and a second limit device. Specifically, each limit device includes a limit switch 301 and a limit rod 302. The limit switch 301 is arranged outside the sedimentation tank and is respectively fixedly suspended above the water surface at the front end and the rear end of the sedimentation tank. The upper end of the limit rod 302 is connected to the limit switch 301, and the lower end is vertically inserted into the water, and the lower end surface is on the same horizontal plane as the bottom surface of the sludge suction device 206. That is to say, when the sludge suction device 206 runs to the end of the sedimentation tank, it can touch the limit rod 302.

[0054] The following details the specific working principle of the present utility model:

[0055] When it is necessary to clean the floating sludge on the surface of the inclined tubes 211 in the sedimentation tank, first start the drive system 100 of this cleaning device. At this time, the motor reducer 101 of the drive system 100 starts to rotate and drives the first transmission gear. The first transmission gear drives the second transmission gear through the auxiliary chain 107, and the second transmission gear drives the first transmission shaft 105 to start rotating. Then, the third transmission gears at both ends of the first transmission shaft 105 rotate together with the third transmission gears at both ends of the second transmission shaft 106 through the main chain 109, so that the two main chains 109 on both sides of the sedimentation tank rotate between the third transmission gears at the front and rear ends in a manner similar to the chain of a bicycle. The lower single side of the main chain 109 passing through the C-shaped track 108 will drive the sliding device connected thereto, and the two corresponding sliding devices on both sides of the sedimentation tank support the sludge suction device 206 of the sludge suction system 200, so that the sludge suction device 206 straddles above the inclined tubes 211 in the sedimentation tank and is driven by the two-side drive of the sliding devices on both sides to advance from one end of the sedimentation tank to the other end.

[0056] Since the distance between the two groups of sludge suction devices 206 is half of the total length of the sedimentation tank, when one group of sludge suction devices 206 runs to one end of the sedimentation tank, the other group just runs to the middle position of the sedimentation tank. At this time, the sludge suction device 206 running to one end just touches the limit rod 302 arranged above the inclined tube 211 at the end of the sedimentation tank. The limit rod 302 activates the limit switch 301, and the entire drive system 100 will, under the command of the limit switch 301 and through the control of the control system 300, start to return to its position and run; similarly, when the sludge suction device 206 runs to the other end, it will also receive the same command to change the running direction again and run back and forth to complete a working cycle. Such a setting enables the two groups of sludge suction devices 206 to reciprocate in the sedimentation tank under the drive of the entire drive system 100, sucking sludge while walking.

[0057] Then the sludge suction system 200 can be started. At this time, the submersible pump 201 of the sludge suction system 200 starts to suck water. Since all the joints of the entire sludge suction system 200 are sealed, the sludge suction holes 207 at the very front end of the sludge suction system 200 will start to work with the maximum suction force. At this time, the floating sludge on the surface of the inclined tube 211 very close to the lower part of the sludge suction holes 207 will enter the branch sludge suction pipes 205 through the sludge suction holes 207, and then enter the chamber 203 between the submersible pump 201 and the housing 202 through the main sludge suction pipe 204 connected to the branch sludge suction pipes 205. After the floating sludge and sewage fill the entire chamber 203 together, they are discharged through the submersible pump 201 and sent to the sludge discharge well for the next process.

[0058] The on-site commissioning and results of the present utility model are as follows:

[0059] 1. On-site trial operation: After the cleaning device was installed on-site as required, a trial operation was carried out to confirm whether the structure of the sludge suction system 200, the performance of the mechanical drive system 100, and the cooperation with the control system 300 meet the requirements. The metal parts during the operation of the equipment shall not contact any parts in the tank.

[0060] Trial operation result: After 8 hours of trial operation, everything was shown to be normal.

[0061] 2. Overload test: By conducting a water test on the equipment, forcibly loading and short-circuiting, the flexibility and reliability of the overload protection device of the equipment were tested.

[0062] After the operation test, all components operate smoothly and reliably, and the cooperation between all systems is tacit. The adsorption effect of the sludge suction system 200 exceeds expectations, achieving the purpose of simply and effectively cleaning the floating sludge on the surface of the inclined tube 211.

[0063] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. A sedimentation tank inclined tube cleaning device, characterized in that: It includes a drive system, a sludge suction system and a control system. Among them, the control system is electrically connected to the drive system and the sludge suction system respectively. Under the control of the control system, the drive system drives the sludge suction system to reciprocate above the inclined tubes in the sedimentation tank according to the preset start time and working duration; under the control of the control system, the sludge suction system cleans the floating sludge on the upper surface of the inclined tubes.

2. The inclined tube cleaning device for sedimentation tank according to claim 1, characterized in that: The drive system includes a motor reducer arranged outside the sedimentation tank. A first transmission gear is arranged at the output end of the motor reducer. A first transmission shaft is horizontally arranged transversely on the front side wall of the sedimentation tank. A second transmission shaft is arranged at the same height on the rear side wall of the sedimentation tank corresponding to the first transmission shaft. A second transmission gear is arranged at one end of the first transmission shaft. The second transmission gear is directly below the first transmission gear, and the two are connected by a secondary chain. A third transmission gear is fixedly arranged at both ends of the first transmission shaft and the second transmission shaft respectively.

3. The inclined tube cleaning device for sedimentation tank according to claim 2, wherein: The two third transmission gears on the left side of the first transmission shaft and the second transmission shaft and the two third transmission gears on the right side are connected by a main chain respectively. A C-shaped track is horizontally laid between the two third transmission gears on the same side, so that the lower side chain of the main chain runs through the C-shaped track.

4. The inclined tube cleaning device for sedimentation tank according to claim 3, characterized in that: The sludge suction system includes a submersible sewage pump. A housing is arranged around the submersible sewage pump. A chamber is arranged between the housing and the pump body of the submersible sewage pump. A through hole is opened on the top surface and the lower side surface of the housing respectively. The water outlet of the submersible sewage pump passes through the through hole on the top surface and is sealed with the through hole.

5. The inclined tube cleaning device for sedimentation tank according to claim 4, characterized in that: The sludge suction system further includes a sludge suction pipe. The sludge suction pipe includes a main sludge suction pipe and a branch sludge suction pipe. The front end of the main sludge suction pipe is in a "U" shape, horizontally erected on both sides of the sedimentation tank and above the water surface, and the rear end is connected to the through hole opened on the lower side surface of the housing, and the connection is sealed.

6. The inclined tube cleaning device for sedimentation tank according to claim 5, wherein: The two ports of the "U" - shaped sludge suction pipe are in a closed state. Two through holes are respectively opened at the relative positions of the two parallel pipes of the "U" - shaped sludge suction pipe; one end of the branch sludge suction pipe is tightly connected to the through hole, and the other end is connected to a sludge suction device. The material of the branch sludge suction pipe is a soft and bendable material.

7. The inclined tube cleaning device for sedimentation tank according to claim 6, wherein: The sludge suction device is a hollow tube with both ends closed. There are two groups, which are horizontally and parallelly erected above the inclined tubes in the sedimentation tank respectively. The bottom surface of the sludge suction device is provided with sludge suction holes at intervals. A horn - shaped baffle is arranged around each sludge suction hole. The distance between the two groups of sludge suction devices is set to be half of the length of the sedimentation tank. Two through holes are respectively opened at the symmetrical positions on the upper surfaces of the two groups of sludge suction devices, and the through holes are connected to the branch sludge suction pipes.

8. The inclined tube cleaning device for sedimentation tank according to claim 7, characterized in that: Sliding devices are respectively arranged at both ends of the mud suction device. The sliding device includes two sliding wheels and a rectangular sliding frame. The two sliding wheels are arranged in the sliding frame in a front-back arrangement and are fixedly connected to the inner side of the sliding frame. The sliding device is inserted into the C-shaped track, so that the sliding wheels can slide back and forth on the inner bottom surface of the C-shaped track. One side of the sliding frame located inside the C-shaped track is fixedly connected to the main chain passing through the C-shaped track, and two through holes are formed on the outer side surface of the sliding frame.

9. The inclined tube cleaning device for sedimentation tank according to claim 8, wherein: Connection plates are arranged at both ends of the mud suction device. Vertically elongated through holes are formed at symmetric positions on the left and right of the connection plates. Bolts are used to pass through the vertically elongated through holes and are tightly connected to the through holes formed on the outer side surface of the sliding frame. The vertically elongated through holes are used for the up-and-down adjustment of the mud suction device.

10. The inclined tube cleaning device for sedimentation tank according to claim 9, characterized in that: The control system includes an electric control box and a limit device. The limit device includes a first limit device and a second limit device. The first limit device and the second limit device are respectively arranged at the front and rear ends of the sedimentation tank. The limit device includes a limit rod and a limit switch. The limit switch is arranged outside the sedimentation tank and is connected to the upper end of the limit rod. The lower end of the limit rod is vertically inserted into the sedimentation tank, and the lower end surface of the limit rod and the bottom surface of the mud suction device are located on the same horizontal plane.

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