Sludge thickening and dewatering device for sewage treatment

Abstract

The utility model relates to the technical field of sludge dewatering, and provides a sludge thickening and dewatering device for sewage treatment, which comprises a sludge treatment box, a side flushing mechanism, a top spraying mechanism, a rotating mechanism, a sewage discharging mechanism and a sealing cover, the side flushing mechanism is arranged at the top of the sludge treatment box and is used for laterally flushing the interior of the sludge treatment box, the top spraying mechanism is arranged at the top of the sludge treatment box and is used for performing top spraying on the interior of the sludge treatment box, the rotating mechanism is arranged on the side flushing mechanism and is used for rotating the flushing angle of the side flushing mechanism to the sludge treatment box, and the sewage discharging mechanism is arranged at the bottom of the sludge treatment box and is used for discharging sewage. The water suction device is used for sucking out water in the sludge treatment box after flushing. According to the technical scheme, the problem that in the prior art, the sludge treatment box often needs to be manually cleaned by a specially-assigned person in time or regularly, otherwise, the sludge treatment box is prone to decay and deterioration after being not cleaned for a long time is solved.

Description

Technical Field

[0001] This utility model relates to the field of sludge dewatering technology, specifically to a sludge thickening and dewatering device for sewage treatment. Background Technology

[0002] Wastewater treatment sludge thickening and dewatering equipment is a device used to treat sludge generated from wastewater. Its main function is to remove water from the sludge and reduce its volume for subsequent treatment and disposal. The equipment mainly consists of a sludge tank, a sludge feeding box, a metering box, a flocculation mixing box, and a dewatering machine (including a conveyor belt). Therefore, it requires a very open plant space for its layout and operation, and the equipment has very demanding requirements for the space conditions in use.

[0003] Generally, sludge containing wastewater and flocculant are mixed in a specific ratio and added to the device. The sludge is then concentrated and dewatered by stirring in the sludge treatment tank. However, some sludge, after being evenly dispersed, often ends up scattered throughout the sludge treatment tank, causing blockages and hindering the sludge concentration and dewatering process. Furthermore, if not cleaned in time, the ratio of sludge to flocculant will become uneven during subsequent sludge concentration treatments, leading to a decline in the overall quality of the concentrated and dewatered sludge. Regular or timely manual cleaning by designated personnel is often necessary; otherwise, prolonged neglect can lead to rotting, deterioration, and safety issues. Utility Model Content

[0004] This utility model proposes a sludge thickening and dewatering device for sewage treatment, which solves the problem in the prior art that sludge treatment boxes often need to be manually cleaned by designated personnel in a timely or periodic manner, otherwise they are prone to rotting and deterioration if not cleaned for a long time.

[0005] The technical solution of this utility model is as follows:

[0006] A sludge thickening and dewatering device for wastewater treatment includes a sludge treatment tank and further includes:

[0007] A side flushing mechanism is provided on one side of the sludge treatment tank and is used to perform side flushing of the inside of the sludge treatment tank.

[0008] A top spraying mechanism is installed on the top of the sludge treatment tank for spraying water onto the interior of the sludge treatment tank.

[0009] A rotating mechanism is provided on the side flushing mechanism and is used to rotate the angle at which the side flushing mechanism flushes the sludge treatment tank.

[0010] A sewage discharge mechanism is provided at the bottom of the sludge treatment tank and is used to extract the water after rinsing inside the sludge treatment tank.

[0011] A sealing cover is fixedly connected to the top of the sludge treatment tank and is used to seal the sludge treatment tank when it is in operation.

[0012] Preferably, the side flushing mechanism includes:

[0013] A water inlet pipe, one end of which is connected to one side of the sludge treatment tank, and the water inlet pipe extends into the sludge treatment tank;

[0014] A high-pressure water spray head, wherein the high-pressure water spray head is connected to one end of the water inlet pipe located inside the sludge treatment tank;

[0015] Water pump one, the other end of the inlet pipe is connected to the outlet end of the water pump one;

[0016] A water storage tank, wherein the inlet end of the water pump is connected to the water storage tank.

[0017] Preferably, the top spray mechanism includes:

[0018] A water spray main pipe, which is connected to the water storage tank;

[0019] The main water spray pipe is connected to multiple water spray pipes through multiple telescopic pipes. The top of the sludge treatment box has multiple movable openings. Each water spray pipe passes through each movable opening and extends into the interior of the sludge treatment box.

[0020] Water pump two, wherein the water pump two is installed between the main water spray pipe and the water storage tank;

[0021] The adhesive nozzle is connected to the bottom end of each of the water spray pipes.

[0022] Preferably, the rotating mechanism includes:

[0023] A connecting rod is fixedly connected between every two water spray pipes;

[0024] A rotating shaft is symmetrically arranged on the two outermost water spray pipes among the plurality of water spray pipes;

[0025] Support plates, two of which are fixedly connected to the top of the enclosure, and two rotating shafts are respectively rotatably mounted on the two support plates;

[0026] An adjusting gear is fixedly connected to one of the rotating shafts;

[0027] A rack, which is slidably mounted on the top of the enclosure, and the adjusting gear meshes with the rack;

[0028] An electric cylinder is mounted on the enclosed cover, and the output end of the electric cylinder is fixedly connected to the rack.

[0029] Preferably, the sewage discharge mechanism includes:

[0030] A sewage pipe, which is connected to the bottom of the sludge treatment tank;

[0031] The valve is installed on the sewage pipe.

[0032] Furthermore, a folded layer is fitted onto the water spray pipe, and the folded layer is connected to the inner wall of the movable port.

[0033] The working principle and beneficial effects of this utility model are as follows:

[0034] In this invention, after the sludge thickening and dewatering device processes sludge, motors one and two are first turned off to stop the operation inside the sludge treatment tank. The stirring rods inside the mixing tank stop stirring. The protective door is slid closed, and water pumps one and two are turned on to send water from the water storage tank through the inlet pipe and the main spray pipe. Water is then sprayed into the sludge treatment tank from the high-pressure spray head and the gel spray head, causing the high-pressure spray head to flush the inside of the sludge treatment tank. At the same time, the electric cylinder is started, causing the rack to slide back and forth, rotating the main spray pipe to flush the inside of the sludge treatment tank. After flushing, the valve is opened to discharge the remaining cleaned water and sludge. Compared with the prior art, this invention performs high-pressure flushing after each sludge thickening and dewatering process, keeping the inside of the sludge treatment tank clean. This reduces internal blockage and flow to the next stage during subsequent sludge processing, reduces incomplete thickening, and improves overall work efficiency and quality. Attached Figure Description

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0037] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0038] Figure 3 In this utility model Figure 2 A partial structural diagram of A in the middle;

[0039] Figure 4 This is a schematic diagram of the structure of the sludge treatment box and the motor in this utility model.

[0040] Figure 5This is a schematic diagram of the structure of the sludge treatment box, the spiral shaft, and the moving ring in this utility model.

[0041] Figure 6 This is a schematic diagram of the structure of the sludge treatment tank, water storage tank and valves in this utility model;

[0042] Figure 7 In this utility model Figure 6 A schematic diagram of the partial structure of B in the diagram;

[0043] Figure 8 This is a schematic diagram of the structure of the water storage tank and sludge treatment tank in this utility model.

[0044] In the diagram: 1. Sludge treatment box; 2. Flocculation box; 3. Support column; 4. Motor 1; 5. Connecting pipe; 6. Enclosed cover; 7. Protective door; 8. Funnel-shaped; 9. Spiral shaft; 10. Moving ring; 11. Spray pipe; 12. Baffle.

[0045] 101. Mixing tank; 102. Top plate; 103. Motor II; 104. Stirring rod;

[0046] 201. Inlet pipe; 202. High-pressure spray head; 203. Water storage tank; 204. Water pump one;

[0047] 301. Sewage pipe; 302. Valve;

[0048] 401. Main water spray pipe; 402. Second water pump; 403. Gel nozzle; 404. Folded layer; 405. Water spray pipe; 406. Telescopic pipe;

[0049] 501. Connecting rod; 502. Adjusting gear; 503. Rack; 504. Electric cylinder; 505. Rotating shaft; 506. Support plate. Detailed Implementation

[0050] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0051] like Figures 1-8As shown, this embodiment proposes a sludge thickening and dewatering device for wastewater treatment, including a sludge treatment tank 1, a side flushing mechanism, a top spraying mechanism, a rotating mechanism, a sewage discharge mechanism, and a sealing cover 6. The side flushing mechanism is located on one side of the sludge treatment tank 1 and is used to side flush the inside of the sludge treatment tank 1. The top spraying mechanism is located on the top of the sludge treatment tank 1 and is used to top spray the inside of the sludge treatment tank 1. The rotating mechanism is located on the side flushing mechanism and is used to rotate the angle at which the side flushing mechanism flushes the sludge treatment tank 1. The sewage discharge mechanism is located at the bottom of the sludge treatment tank 1 and is used to suck out the water after flushing the inside of the sludge treatment tank 1. The sealing cover 6 is fixedly connected to the top of the sludge treatment tank 1 and is used to close the sludge treatment tank 1 when it is working. A protective door 7 is slidably connected to one side of the sealing cover 6. Furthermore, the protective door 7 is made of transparent material and has a sliding connection to effectively prevent water, sludge, or impurities inside the equipment from splashing out during operation and affecting the surrounding operating environment. The transparent material of the protective door 7 makes it easy to observe the working status of the sludge thickening and dewatering device during operation, and to observe areas that are not cleaned properly during high-pressure rinsing, so as to rinse them again. The inner bottom wall of the sludge treatment tank 1 is designed as a funnel shape 8, mainly to allow the cleaned water and sludge impurities to slide to the bottom, avoiding them from sticking to other places and being difficult to remove. In addition, two baffles are fixedly connected to the inner top wall of the enclosure 6. When the sludge treatment tank 1 is rinsed by the gel nozzle 403, the splashed sewage is slid to the bottom by the baffle 12, thereby minimizing the clogging of the gel nozzle 403.

[0052] In this embodiment, the side flushing mechanism includes an inlet pipe 201, a high-pressure spray head 202, a water pump 204, and a water storage tank 203. One end of the inlet pipe 201 is connected to one side of the sludge treatment tank 1 and extends into the sludge treatment tank 1. The high-pressure spray head 202 is connected to the end of the inlet pipe 201 located inside the sludge treatment tank 1. The other end of the inlet pipe 201 is connected to the outlet end of the water pump 204, and the inlet end of the water pump 204 is connected to the water storage tank 203.

[0053] In this embodiment, the top spraying mechanism includes a main water spray pipe 401, a water spray tube 405, a second water pump 402, and a gel nozzle 403. The main water spray pipe 401 is connected to the water storage tank 203. The main water spray pipe 401 is connected to multiple water spray tubes 405 through multiple telescopic pipes 406. The top of the sludge treatment tank 1 has multiple movable openings. Each water spray tube 405 passes through each movable opening and extends into the interior of the sludge treatment tank 1. The second water pump 402 is installed between the main water spray pipe 401 and the water storage tank 203. The bottom end of each water spray tube 405 is connected to and installed with a gel nozzle 403. A folded layer 404 is sleeved on the water spray tube 405, and the folded layer 404 is connected to the inner wall of the movable opening. The folded layer 404 can prevent water from spraying out from the movable opening while not hindering the movement of the water spray tube 405.

[0054] In this embodiment, the rotating mechanism includes a connecting rod 501, a rotating shaft 505, a support plate 506, an adjusting gear 502, a rack 503, and an electric cylinder 504. A connecting rod 501 is fixedly connected between every two water spray pipes 405. Rotating shafts 505 are symmetrically arranged on the two outermost water spray pipes 405. Two support plates 506 are fixedly connected to the top of the closed cover 6. The two rotating shafts 505 are rotatably mounted on the two support plates 506 respectively. The adjusting gear 502 is fixedly connected to one of the rotating shafts 505. The rack 503 is slidably mounted on the top of the closed cover 6 and meshes with the rack 503. The electric cylinder 504 is mounted on the closed cover 6, and the output end of the electric cylinder 504 is fixedly connected to the rack 503.

[0055] In this embodiment, the sewage discharge mechanism includes a sewage discharge pipe 301 and a valve 302. The sewage discharge pipe 301 is connected to the bottom of the sludge treatment tank 1, and the valve 302 is installed on the sewage discharge pipe 301.

[0056] It should be noted that this embodiment also includes a mixing tank 101, a flocculation tank 2, and a second motor 103. The sludge treatment tank 1 is connected to the flocculation tank 2 through a connecting pipe 5. The mixing tank 101 is connected to the side of the flocculation tank 2 away from the sludge treatment tank 1. A top plate 102 is fixedly connected to the middle of the top of the mixing tank 101. The second motor 103 is installed on the top of the top plate 102. The stirring rod 104 is fixedly connected to the output end of the second motor 103 for reprocessing after sludge dewatering and concentration.

[0057] It should be noted that the bottom of the sludge treatment tank 1 is fixedly connected to a support column 3. The support column 3 supports the overall operation of the sludge treatment tank 1, ensuring that the sludge treatment tank 1 does not directly rub against the ground during operation, thus preventing the bottom of the sludge treatment tank 1 from thinning due to direct friction. In addition, two motors 4 are fixedly installed on the outer wall of one end of the sludge treatment tank 1. The sludge treatment tank 1 is equipped with a stacked screw body, which includes two spiral shafts 9, multiple moving rings 10, and spray pipes 11. The two spiral shafts 9 are respectively fixedly connected to the two motors. On the output end of motor 4, multiple moving rings 10 are fixedly connected to the inner bottom wall of sludge treatment tank 1, and two spiral shafts 9 pass through the middle of the moving rings 10. Spray pipe 11 is fixedly installed on the inner side wall at the highest point of sludge treatment tank 1. The front half of the screw press body is the thickening section, which sprays water into the interior through the spray pipe 11. When motor 4 is started, the rotation of motor 4 thickens the sludge through gravity. The rear half of the screw press body is the dewatering section, which generates internal pressure under the action of the change in the shaft distance of the spiral shaft 9, thereby achieving the dewatering effect.

[0058] In summary, the working principle of this sludge thickening and dewatering device for wastewater treatment is as follows: After the sludge thickening and dewatering device has finished treating the sludge and emptied the sludge in the sludge treatment tank 1, the protective door 7 can be closed to make the inside of the sludge treatment tank 1 a sealed state. Then, water pump 204 and water pump 402 are turned on, and the water prepared in advance in the water storage tank 203 is supplied from the water storage tank 203 through the water inlet pipe 201 and the water spray main pipe 401. The water is sprayed into the sludge treatment tank 1 by the high-pressure water spray head 202 and the colloidal spray head 403. When the electric cylinder 504 is started, the electric cylinder 504 will drive the rack 503 to slide, and the rack 503 will drive the adjusting gear 502 to rotate. The shaft 505 rotates back and forth around the center. Under the connection of multiple connecting rods 501, multiple water spray pipes 405 swing back and forth in multiple movable ports to spray water. As the spiral shaft 9 rotates, it is subjected to comprehensive rinsing by high-pressure water spray head 202 and gel spray head 403. After rinsing, the water and residual sludge impurities inside the sludge treatment tank 1 will slide onto the bottom wall of the funnel-shaped 8, while the splashed sludge or impurities will automatically slide to the bottom through the baffle 12. Finally, the valve 302 is opened so that the water and residual sludge impurities inside the sludge treatment tank 1 can be discharged through the drain pipe 301.

[0059] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sludge thickening and dewatering device for wastewater treatment, comprising a sludge treatment tank (1), characterized in that, Also includes: A side flushing mechanism is provided on one side of the sludge treatment tank (1) for side flushing the inside of the sludge treatment tank (1). A top spraying mechanism is provided on the top of the sludge treatment tank (1) for spraying the interior of the sludge treatment tank (1). A rotating mechanism is provided on the side flushing mechanism for rotating the angle at which the side flushing mechanism flushes the sludge treatment tank (1); A sewage discharge mechanism is provided at the bottom of the sludge treatment tank (1) for absorbing the water after rinsing inside the sludge treatment tank (1). A sealing cover (6) is fixedly connected to the top of the sludge treatment tank (1) and is used to seal the sludge treatment tank (1) when it is in operation.

2. The sludge thickening and dewatering device for wastewater treatment according to claim 1, characterized in that, The side flushing mechanism includes: Water inlet pipe (201), one end of which is connected to one side of the sludge treatment tank (1), and the water inlet pipe (201) extends into the sludge treatment tank (1); A high-pressure water spray head (202) is connected to one end of the water inlet pipe (201) located inside the sludge treatment tank (1); Water pump 1 (204), the other end of the water inlet pipe (201) is connected to the water outlet end of water pump 1 (204); The water storage tank (203) is connected to the water inlet of the water pump (204).

3. The sludge thickening and dewatering device for wastewater treatment according to claim 2, characterized in that, The top spray mechanism includes: A water spray main pipe (401) is connected to the water storage tank (203); The main water spray pipe (401) is connected to multiple water spray pipes (405) through multiple telescopic pipes (406). The top of the sludge treatment box (1) is provided with multiple movable openings. Each water spray pipe (405) passes through each of the movable openings and extends into the interior of the sludge treatment box (1). Water pump two (402) is installed between the main water spray pipe (401) and the water storage tank (203); The adhesive nozzle (403) is connected to the bottom end of each of the water spray pipes (405).

4. The sludge thickening and dewatering device for wastewater treatment according to claim 3, characterized in that, The rotating mechanism includes: A connecting rod (501) is fixedly connected between every two water spray pipes (405). A rotating shaft (505) is symmetrically arranged on the two outermost water spray pipes (405) among the plurality of water spray pipes (405). Support plate (506), two support plates (506) are fixedly connected to the top of the enclosure (6), and two rotating shafts (505) are respectively rotatably mounted on the two support plates (506); Adjustment gear (502), said adjustment gear (502) is fixedly connected to one of said rotating shafts (505); A rack (503) is slidably mounted on the top of the enclosure (6), and the adjusting gear (502) meshes with the rack (503); An electric cylinder (504) is mounted on the enclosure (6), and the output end of the electric cylinder (504) is fixedly connected to the rack (503).

5. The sludge thickening and dewatering device for wastewater treatment according to claim 4, characterized in that, The sewage discharge mechanism includes: Sewage pipe (301), the sewage pipe (301) is connected to the bottom of the sludge treatment box (1); Valve (302), which is installed on the drain pipe (301).

6. The sludge thickening and dewatering device for wastewater treatment according to claim 5, characterized in that, The water spray pipe is fitted with a folded layer (404), and the folded layer (404) is connected to the inner wall of the movable port.

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