A sedimentation tank for industrial wastewater treatment facilitating desilting

Abstract

This utility model discloses a sedimentation tank for industrial wastewater treatment that facilitates sludge removal. It includes a sedimentation tank, a sludge collection device, and sedimentation troughs. The sludge collection device is fixedly connected to the bottom of the sedimentation tank. Several sedimentation troughs are evenly arranged inside the sedimentation tank, and a support frame II is connected to the outside of the sedimentation tank. The sludge collection device enables the cleaning of sediment in a closed state, preventing the sediment from being stirred up and re-mixed with the supernatant, thus ensuring the stability of the effluent quality. This utility model, while preventing sediment from being stirred up and affecting the effluent quality, also facilitates maintenance and cleaning of the equipment by staff.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and specifically relates to a sedimentation tank for industrial wastewater treatment that is easy to clean. Background Technology

[0002] In the process of purifying industrial wastewater, flocculants, precipitants and other treatment agents are usually added to coagulate suspended particulate matter in the wastewater and separate it in a sedimentation tank to effectively remove pollutants. However, during the sedimentation process, pollutants are continuously compacted and may even adhere to the inner wall of the sedimentation tank, resulting in a reduction in the tank volume. The actual residence time of wastewater in the sedimentation tank is shortened, and suspended solids are carried out before they have time to settle, leading to a deterioration of the effluent quality.

[0003] A search revealed a sedimentation tank with existing technology announcement number CN222605484U that is easy to clean. This device uses a first motor and a screw to control the nut seat to drive a second motor and two agitator rods. Simultaneously, the second motor controls the two agitator rods to rotate and stir the bottom of the sedimentation tank, and a combing rod to move the sediment, finally discharging the mixture. However, the agitator rods and combing rods are fixed to the side plate, and their cleaning path is linear. It is difficult to effectively cover areas such as the corners of the tank walls, the edges of the tank bottom, and below the inlet and outlet, leaving cleaning dead spots.

[0004] A search revealed a sedimentation tank sludge removal device with existing technology announcement number CN222605482U. This device uses two first motors, each connected to a lead screw, to control two moving blocks that drive a connecting plate and an mounting plate. This, in turn, causes the mounting plate to move the protective shell and scraper. Simultaneously, the scraper removes sludge from the bottom surface of the tank. The rebound force of a second spring pushes a second connecting column downwards, which in turn moves the protective shell and scraper downwards, ensuring that the scraper remains in contact with the bottom surface of the tank. However, in actual sludge removal, if the sludge is viscous or contains solid debris, the second spring may not provide sufficient clamping force, resulting in the scraper not scraping cleanly or "climbing" over obstacles, leaving cleaning dead spots.

[0005] Furthermore, both of the above devices are prone to stirring up the sludge deposited at the bottom of the sedimentation tank during the sludge cleaning process, causing the sludge to flow out of the sedimentation tank along with the supernatant.

[0006] Therefore, there is a need for a sedimentation tank for industrial wastewater treatment that is easy to clean, so as to prevent the sediment from being stirred up and affecting the quality of the effluent, while also facilitating the maintenance and cleaning of the equipment by the staff. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a sedimentation tank for industrial wastewater treatment that is easy to clean. This invention uses a sludge collection device to clean the sediment in a closed state, effectively preventing the sediment from being stirred up and mixed with the supernatant due to equipment operation, thereby ensuring the stability of the effluent quality.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A sedimentation tank for industrial wastewater treatment that is easy to clean includes a sedimentation tank, a sludge collection device, and a sedimentation trough; the sludge collection device is fixedly connected to the bottom of the sedimentation tank; several sedimentation troughs are evenly arranged inside the sedimentation tank, and a support frame II is supported and connected to the outside of the sedimentation tank.

[0010] The sedimentation tank is equipped with a water tank, an outlet pipe, a conical connecting groove, an inlet pipe, a support frame I, a bracket, and a baffle. The water tank is fixedly connected to the top of the sedimentation tank, the conical connecting groove is located at the bottom of the sedimentation tank, and one end of the outlet pipe is fixedly connected to the water tank, while the other end is connected to subsequent treatment equipment through a connecting pipe. The bracket is fixedly connected to the inner wall of the sedimentation tank, and the baffle is fixedly connected to the bottom of the bracket through several connecting rods. One end of the inlet pipe is located above the baffle and is fixedly connected to a through hole on the bracket, while the other end is rotatably connected to one end of the support frame I. The other end of the support frame I is slidably connected to the water tank and the top of the sedimentation tank through several ball bearings.

[0011] The sludge collection device includes a connecting cover, a connecting groove, a sealing plate, an electric pusher cylinder, a collection box, a screw conveyor, a discharge port, a loosening mechanism, a scraping mechanism, and a collection mechanism. The bottom of the connecting cover is threadedly connected to the top of the collection box. A pair of sealing plates are symmetrically slidably connected in the connecting groove at the top of the connecting cover, and the top of the connecting groove is fixedly connected to the bottom of the conical connecting groove. Several electric pusher cylinders are provided, and the extended ends of the electric pusher cylinders are respectively fixedly connected to one end of a pair of sealing plates. The cylinder bodies are symmetrically fixedly connected to the top of the connecting groove through connecting seats. One side of the screw conveyor is fixedly connected to the bottom of the collection box, and the discharge port is located below the screw conveyor. The top of the scraping mechanism is located inside the conical connecting groove, and the bottom is connected to the collection box. The top of the loosening mechanism is located inside the collection box, and the bottom is connected to the collection box. The collection mechanism is located outside the loosening mechanism and connected to the collection box.

[0012] The collection mechanism includes a sprocket III, a scraper II, a tensioning wheel III, and a motor III. The bottom of the scraper II is fixedly connected to the sprocket III through a connecting cylinder passing through a through hole at the bottom of the collection box. The tensioning wheel III is rotatably connected to a connecting shaft fixedly connected to the bottom of the collection box. The motor III is fixedly connected to the bottom of the collection box through a motor base, and the sprocket at the output end of the motor III is connected to the sprocket III and the tensioning wheel III through a chain.

[0013] The loosening mechanism includes a sprocket I, support rods, a motor I, a tensioning wheel I, and a connecting cylinder I. The top of the connecting cylinder I is rotatably connected to the top of the scraper II, and the bottom of the connecting cylinder passes through the bottom of the scraper II and is fixedly connected to the sprocket I. Several support rods are located inside the scraper II and are fixedly connected to the connecting cylinder I. The tensioning wheel I is rotatably connected to a connecting shaft fixedly connected to the bottom of the collection box. The motor I is fixedly connected to the bottom of the collection box through a motor base, and the sprocket on the output end of the motor I is connected to the sprocket I and the tensioning wheel I through a chain.

[0014] The scraping mechanism includes a sprocket II, a scraper I, a connecting rod, a tensioning wheel II, and a motor II. The bottom end of the connecting rod is fixedly connected to the sprocket II located below the sprocket I, and the top end passes through the through groove on the connecting cylinder I and the sealing plate and is rotatably connected to the baffle. Several scrapers I are provided, with one end of the scraper I fixedly connected to the connecting rod and the other side in contact with the inner wall of the conical connecting groove. The tensioning wheel II is rotatably connected to the connecting shaft fixedly connected to the bottom of the collection box. The motor II is fixedly connected to the bottom of the collection box through a motor base, and the sprocket on the output end of the motor II is connected to the sprocket II and the tensioning wheel II through a chain.

[0015] The sedimentation tank is attached to the outer wall of the inlet pipe on one side and to the inner wall of the sedimentation tank on the other side. Several inclined plates are fixedly connected inside the sedimentation tank, and several lifting rings are provided at the top.

[0016] The advantages of this utility model compared with the prior art are as follows:

[0017] 1) The sludge collection device seals the collection box with a sealing plate, allowing the collection mechanism and screw conveyor to clean the sediment within the sealed collection box. This prevents the sedimented sludge from being stirred up and mixed with the supernatant again, ensuring the stability of the effluent quality.

[0018] 2) The sedimentation tank can be lifted out as a whole, enabling offline cleaning and quick replacement without interfering with other structures in the tank; at the same time, the collection box is connected by threads and can be disassembled as a whole; this design fully exposes all internal components such as the screw conveyor, scraper, and loosening rod, leaving no dead corners for cleaning, and facilitating the most thorough rinsing, maintenance and component replacement. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of a sedimentation tank structure for industrial wastewater treatment that is easy to clean.

[0020] Appendix Figure 2 It is attached Figure 1 Cross-sectional structural diagram of the intermediate sedimentation tank;

[0021] Appendix Figure 3 It is attached Figure 1 Schematic diagram of the connection structure between the intermediate sedimentation tank and the sludge collection device;

[0022] Appendix Figure 4 It is attached Figure 1 Schematic diagram of the connection structure between the middle connecting cover and the collection box;

[0023] Appendix Figure 5 It is attached Figure 1 Schematic diagram of the sludge collection device;

[0024] Appendix Figure 6 It is attached Figure 1 A schematic diagram of the silt collection device from below;

[0025] In the diagram: 1. Sedimentation tank; 101. Water tank; 102. Outlet pipe; 103. Conical connecting groove; 104. Inlet pipe; 1041. Support frame I; 105. Bracket; 1051. Baffle; 2. Sludge collection device; 201. Connecting cover; 2011. Connecting groove; 202. Sealing plate; 2021. Electric pusher cylinder; 203. Collection box; 204. Screw conveyor; 2041. Discharge port; 205. Loosening mechanism; 2051. Sprocket Ⅰ; 2052, Support rod; 2053, Motor Ⅰ; 2054, Tensioner Ⅰ; 2055, Connecting cylinder Ⅰ; 206, Scraping mechanism; 2061, Sprocket Ⅱ; 2062, Scraper Ⅰ; 2063, Connecting rod; 2064, Tensioner Ⅱ; 2065, Motor Ⅱ; 207, Collection mechanism; 2071, Sprocket Ⅲ; 2072, Scraper Ⅱ; 2073, Tensioner Ⅲ; 2074, Motor Ⅲ; 3, Sedimentation tank; 4, Support frame Ⅱ. Detailed Implementation

[0026] To facilitate understanding by those skilled in the art, the following is in conjunction with the appendix. Figure 1-6 The technical solution of this utility model will be further described in detail below.

[0027] A sedimentation tank for industrial wastewater treatment that is easy to clean includes a sedimentation tank 1, a sludge collection device 2, and a sedimentation trough 3; the sludge collection device 2 is fixedly connected to the bottom of the sedimentation tank 1; a plurality of sedimentation troughs 3 are evenly arranged inside the sedimentation tank 1, and a support frame II 4 is supported and connected to the outside of the sedimentation tank 1.

[0028] The sedimentation tank 1 is equipped with a water tank 101, an outlet pipe 102, a conical connecting groove 103, an inlet pipe 104, a support frame I 1041, a bracket 105, and a baffle 1051. The water tank 101 is fixedly connected to the top of the sedimentation tank 1, the conical connecting groove 103 is located at the bottom of the sedimentation tank 1, and one end of the outlet pipe 102 is fixedly connected to the water tank 101, while the other end is connected to subsequent treatment equipment through a connecting pipe. The bracket 105 is fixedly connected to the inner wall of the sedimentation tank 1, and the baffle 1051 is fixedly connected to the bottom of the bracket 105 through several connecting rods. One end of the inlet pipe 104 is located above the baffle 1051 and is fixedly connected to the through hole on the bracket 105, while the other end is rotatably connected to one end of the support frame I 1041. The other end of the support frame I 1041 is slidably connected to the water tank 101 and the top of the sedimentation tank 1 through several ball bearings.

[0029] The sludge collection device 2 includes a connecting cover 201, a connecting groove 2011, a sealing plate 202, an electric pusher cylinder 2021, a collection box 203, a screw conveyor 204, a discharge port 2041, a loosening mechanism 205, a scraping mechanism 206, and a collection mechanism 207. The bottom of the connecting cover 201 is threadedly connected to the top of the collection box 203. A pair of sealing plates 202 are symmetrically slidably connected in the connecting groove 2011 at the top of the connecting cover 201, and the top of the connecting groove 2011 is fixedly connected to the bottom of the conical connecting groove 103. Several electric pusher cylinders 2021 are provided. The protruding ends of 1 are fixedly connected to one end of a pair of sealing plates 202 respectively, and the cylinder body is symmetrically fixedly connected above the connecting groove 2011 through the connecting seat; one side of the screw conveyor 204 is fixedly connected to the bottom of the collection box 203, and the discharge port 2041 is located below the screw conveyor 204; the top of the scraping mechanism 206 is located inside the conical connecting groove 103, and the bottom is connected to the collection box 203; the top of the loosening mechanism 205 is located inside the collection box 203, and the bottom is connected to the collection box 203, and the collection mechanism 207 is located outside the loosening mechanism 205 and connected to the collection box 203.

[0030] The collection mechanism 207 includes a sprocket Ⅲ2071, a scraper Ⅱ2072, a tensioning wheel Ⅲ2073, and a motor Ⅲ2074. The bottom of the scraper Ⅱ2072 is fixedly connected to the sprocket Ⅲ2071 through a connecting cylinder passing through a through hole at the bottom of the collection box 203. The tensioning wheel Ⅲ2073 is rotatably connected to a connecting shaft fixedly connected to the bottom of the collection box 203. The motor Ⅲ2074 is fixedly connected to the bottom of the collection box 203 through a motor base, and the sprocket at the output end of the motor Ⅲ2074 is connected to the sprocket Ⅲ2071 and the tensioning wheel Ⅲ2073 through a chain.

[0031] The loosening mechanism 205 includes a sprocket I 2051, a support rod 2052, a motor I 2053, a tensioning wheel I 2054, and a connecting cylinder I 2055. The top of the connecting cylinder I 2055 is rotatably connected to the top of the scraper II 2072, and the bottom of the connecting cylinder passes through the bottom of the scraper II 2072 and is fixedly connected to the sprocket I 2051. Several support rods 2052 are located inside the scraper II 2072 and are fixedly connected to the connecting cylinder I 2055. The tensioning wheel I 2054 is rotatably connected to the connecting shaft fixedly connected to the bottom of the collection box 203. The motor I 2053 is fixedly connected to the bottom of the collection box 203 through a motor base, and the sprocket on the output end of the motor I 2053 is connected to the sprocket I 2051 and the tensioning wheel I 2054 through a chain.

[0032] The scraping mechanism 206 includes a sprocket II 2061, a scraper I 2062, a connecting rod 2063, a tensioning wheel II 2064, and a motor II 2065. The bottom end of the connecting rod 2063 is fixedly connected to the sprocket II 2061 located below the sprocket I 2061, and the top end passes through the through groove on the connecting cylinder I 2055 and the sealing plate 202 and is rotatably connected to the baffle 1051. Several scrapers I 2062 are provided, and one end of the scraper I 2062 is fixedly connected to the connecting rod 2063, and the other side is in contact with the inner wall of the conical connecting groove 103. The tensioning wheel II 2064 is rotatably connected to the connecting shaft fixedly connected to the bottom of the collection box 203. The motor II 2065 is fixedly connected to the bottom of the collection box 203 through a motor base, and the sprocket on the output end of the motor II 2065 is connected to the sprocket II 2061 and the tensioning wheel II 2064 through a chain.

[0033] The sedimentation tank 3 is attached to the outer wall of the water inlet pipe 104 on one side and to the inner wall of the sedimentation tank 1 on the other side. Several inclined plates are fixedly connected inside the sedimentation tank 3, and several lifting rings are provided at the top.

[0034] A sedimentation tank for industrial wastewater treatment that is easy to clean, the working process is as follows:

[0035] Wastewater flows through inlet pipe 104 and is buffered by baffle 1051 before flowing into sedimentation tank 1 and collection tank 203 in sludge collection device 2. Sedimentation tank 3 then separates the wastewater through sedimentation. The supernatant overflows the top of sedimentation tank 1 into water tank 101, then flows through outlet pipe 102 into subsequent treatment equipment for further processing. The separated sediment slides down the inclined plate in sedimentation tank 3 into conical connecting trough 103 and collection tank 203. Simultaneously, the motor II 2065 in scraping mechanism 206 is connected to sprocket II 2061 and tensioning wheel II 2064. When the connecting rod 2063 is engaged, it drives the scraper I 2062 to rotate slowly, thereby scraping the sediment on the conical connecting groove 103 into the collection box 203; at the same time, the motor I 2053 in the loosening mechanism 205 cooperates with the sprocket I 2051 and the tensioning wheel I 2054 to control the connecting cylinder I 2055 to drive the support rod 2052 to rotate slowly, thereby spreading the sediment that has entered the collection box 203, making full use of the space in the collection box 203 to collect the sediment, and keeping the sediment in the collection box 203 in a loose state to reduce the occurrence of sediment caking;

[0036] Once the sediment in the collection box 203 has accumulated to a certain amount, the electric pusher cylinder 2021 is controlled to operate synchronously, thereby pulling a pair of sealing plates 202 closer together until the sealing plates 202 are in contact with each other, thus sealing the collection box 203. Then, the screw conveyor 204 is started to transport the sediment in the collection box 203 to other processing equipment for further processing. While the screw conveyor 204 is running, the motor III 2074 in the collection mechanism 207 works with the sprocket III 2071 and the tensioning wheel III 2073 to drive the scraper II 2072 to rotate, thereby scraping off the sediment remaining in various parts of the collection box 203 and scraping it into the screw conveyor 204.

[0037] After prolonged use, the sedimentation tank 3 can be lifted out of the sedimentation tank 1 for cleaning or replacement using hoisting equipment and lifting rings on the sedimentation tank 3. At the same time, by controlling the support frame I 1041 to slide along the sedimentation tank 1 and the water tank 101, the support frame I 1041 can provide support for the water inlet pipe 104 while avoiding interference with the disassembly and assembly of the sedimentation tank 3. After disconnecting the discharge port 2041 from the transport pipeline, the collection box 203 can be separated from the connecting cover 201 with the help of external equipment, which facilitates the cleaning and maintenance of the collection box 203 and its internal mechanism by the staff.

[0038] In the description of this invention, the connection methods are divided into fixed connection and movable connection. Fixed connection methods include, but are not limited to, welding and bolting; movable connection methods include, but are not limited to, sliding connection, rotating connection and threaded connection. The connection method to achieve the desired effect should be selected according to the application of the solution.

[0039] In summary, including but not limited to motors, electric motors, and other power systems and their respective transmission systems, protective covers are provided according to the actual installation location to prevent external environmental factors from causing wear or damage to the power system and transmission system, thereby further ensuring the normal operation of the power system and transmission system.

[0040] In summary, the components, including but not limited to motors, electronic or electrical components, are existing components that are custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art, and the power for each component is provided by an external power source. Therefore, they are not within the scope of protection of this utility model.

[0041] In the description of this utility model, unless otherwise stated, "a number" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A sedimentation tank for industrial wastewater treatment that is easy to clean, comprising a sedimentation tank, a sludge collection device, and a sedimentation trough; the sludge collection device is fixedly connected to the bottom of the sedimentation tank; a plurality of sedimentation troughs are evenly arranged inside the sedimentation tank, and a support frame II is supported and connected to the outside of the sedimentation tank. Its features The sedimentation tank is equipped with a water tank, an outlet pipe, a conical connecting groove, an inlet pipe, a support frame I, a bracket, and a baffle. The water tank is fixedly connected to the top of the sedimentation tank, the conical connecting groove is located at the bottom of the sedimentation tank, and one end of the outlet pipe is fixedly connected to the water tank, while the other end is connected to subsequent treatment equipment via a connecting pipe. The bracket is fixedly connected to the inner wall of the sedimentation tank, and the baffle is fixedly connected to the bottom of the bracket via several connecting rods. One end of the inlet pipe is located above the baffle and is fixedly connected to a through hole on the bracket, while the other end is rotatably connected to one end of the support frame I. The other end of the support frame I is slidably connected to the water tank and the top of the sedimentation tank via several ball bearings. The sludge collection device includes a connecting cover, a connecting groove, a sealing plate, an electric pusher cylinder, a collection box, a screw conveyor, a discharge port, a loosening mechanism, a scraping mechanism, and a collection mechanism. The bottom of the connecting cover is threadedly connected to the top of the collection box. A pair of sealing plates are symmetrically slidably connected in the connecting groove at the top of the connecting cover, and the top of the connecting groove is fixedly connected to the bottom of the conical connecting groove. Several electric pusher cylinders are provided, and the extended ends of the electric pusher cylinders are respectively fixedly connected to one end of a pair of sealing plates. The cylinder bodies are symmetrically fixedly connected to the top of the connecting groove through connecting seats. One side of the screw conveyor is fixedly connected to the bottom of the collection box, and the discharge port is located below the screw conveyor. The top of the scraping mechanism is located inside the conical connecting groove, and the bottom is connected to the collection box. The top of the loosening mechanism is located inside the collection box, and the bottom is connected to the collection box. The collection mechanism is located outside the loosening mechanism and connected to the collection box.

2. The sedimentation tank for industrial wastewater treatment that is easy to clean, as described in claim 1, is characterized in that... The collection mechanism includes a sprocket III, a scraper II, a tensioning wheel III, and a motor III. The bottom of the scraper II is fixedly connected to the sprocket III through a connecting cylinder passing through a through hole at the bottom of the collection box. The tensioning wheel III is rotatably connected to a connecting shaft fixedly connected to the bottom of the collection box. The motor III is fixedly connected to the bottom of the collection box through a motor base, and the sprocket at the output end of the motor III is connected to the sprocket III and the tensioning wheel III through a chain.

3. A sedimentation tank for industrial wastewater treatment that is easy to clean, as described in claim 1, is characterized in that... The loosening mechanism includes a sprocket I, support rods, a motor I, a tensioning wheel I, and a connecting cylinder I; the top of the connecting cylinder I is rotatably connected to the top of the scraper II, and the bottom of the connecting cylinder passes through the bottom of the scraper II and is fixedly connected to the sprocket I, and several support rods are located inside the scraper II and are dispersedly and fixedly connected to the connecting cylinder I; the tensioning wheel I is rotatably connected to the connecting shaft fixedly connected to the bottom of the collection box. The motor I is fixedly connected to the bottom of the collection box via a motor mount, and the sprocket on the output end of the motor I is connected to the sprocket I and the tension wheel I via a chain.

4. A sedimentation tank for industrial wastewater treatment that is easy to clean, as described in claim 1, characterized in that... The scraping mechanism includes a sprocket II, a scraper I, a connecting rod, a tensioning wheel II, and a motor II. The bottom end of the connecting rod is fixedly connected to the sprocket II located below the sprocket I, and the top end passes through the through groove on the connecting cylinder I and the sealing plate and is rotatably connected to the baffle. Several scrapers I are provided, with one end of the scraper I fixedly connected to the connecting rod and the other side in contact with the inner wall of the conical connecting groove. The tensioning wheel II is rotatably connected to the connecting shaft fixedly connected to the bottom of the collection box. The motor II is fixedly connected to the bottom of the collection box through a motor base, and the sprocket on the output end of the motor II is connected to the sprocket II and the tensioning wheel II through a chain.

5. A sedimentation tank for industrial wastewater treatment that is easy to clean, as described in claim 1, characterized in that... The sedimentation tank is attached to the outer wall of the inlet pipe on one side and to the inner wall of the sedimentation tank on the other side. Several inclined plates are fixedly connected inside the sedimentation tank, and several lifting rings are provided at the top.

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