Adjustable sludge suction device for secondary sedimentation tank
By designing the threaded cylinder and the clamping screw to cooperate, the suction mechanism and the adjustable suction mechanism can be folded and placed, which solves the problems of wear and tear and water taking up space in the existing device, and realizes the stable use of the device and convenient cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING THREE GORGES WATER CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-08-04
AI Technical Summary
In the existing adjustable sludge suction device for secondary sedimentation tanks, the hoses, water collection pipes, and regulating pipes are not fixed in place, making them prone to being dragged on the ground and damaged. Furthermore, the clear water occupies the space of the sludge separation box, affecting the device's performance and sludge collection.
A slag suction device was designed, comprising a slag separation box, a suction mechanism, an adjustable suction mechanism, and a placement component. The suction mechanism and the adjustable suction mechanism are folded and placed by the cooperation of a threaded cylinder and a clamping screw to avoid wear. A drainage component is set up, and a filter screen and a sealing plug are used to separate and conveniently handle clean water and slag.
It effectively prevents wear on the suction mechanism and the adjustable suction mechanism, thus improving the service life of the device. The design of the filter screen and sealing plug ensures convenient separation and treatment of scum and clean water.
Smart Images

Figure CN224585410U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of slag suction devices, specifically relating to an adjustable slag suction device for a secondary sedimentation tank. Background Technology
[0002] Secondary sedimentation tanks are an important component of activated sludge systems. Their main functions are to separate sludge, clarify and concentrate the mixed liquor, and return activated sludge. Their performance directly affects the effluent quality and the concentration of returned sludge in the activated sludge system.
[0003] In existing secondary sedimentation tank adjustable sludge suction devices, the water collection pipe, regulating pipe, and water pump are connected by flexible hoses. These hoses, water collection pipes, and regulating pipes are not fixed in place, and when not in use, they easily drag on the ground, causing damage and affecting their subsequent performance. Furthermore, scum and some clear water are pumped into the sludge separation box, with the clear water occupying the box's space and hindering its ability to collect scum. Utility Model Content
[0004] To address the problems mentioned in the background section, this invention provides an adjustable sludge suction device for a secondary sedimentation tank, which is easy to store and place, and facilitates filtration and drainage.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable slag suction device for a secondary sedimentation tank, comprising a slag separation box, a drainage component provided on one side of the slag separation box, a suction mechanism fixedly connected to one side of the slag separation box, an adjustable suction mechanism provided at the end of the suction mechanism away from the slag separation box, and a placement component provided above the slag separation box. The placement assembly includes a placement rack, and a fixing member is provided on the top of the placement rack.
[0006] Preferably, the fastener includes a U-shaped frame with an opening, and a threaded cylinder is fixedly connected above the U-shaped frame and around the opening, with a tightening screw threaded to one end of the threaded cylinder.
[0007] Preferably, a pressure plate is fixedly connected to one end of the clamping screw near the opening, and a protective pad is fixedly connected to the side of the pressure plate away from the clamping screw.
[0008] Preferably, a rubber pad is fixedly connected to the inner side wall of the placement rack.
[0009] Preferably, an L-shaped rubber block is fixedly connected above the slag separator and to one side of the placement frame.
[0010] Preferably, the drainage component includes a drain outlet, a drain pipe is inserted into the drain outlet, and a filter screen is fixedly connected inside the drain pipe.
[0011] Preferably, a fixing ring is fixedly connected to the outer wall of the drain pipe, a threaded ring is fixedly connected to the side wall of the fixing ring, an outer connecting ring is fixedly connected to the side wall of the slag separator and located around the drain pipe, and a threaded groove is opened inside the outer connecting ring at the position corresponding to the threaded ring.
[0012] Preferably, a sealing plug is inserted inside the drain pipe and on one side of the filter screen.
[0013] Preferably, a sealing ring is fixedly connected to the outer wall of the sealing plug, and a sealing groove is provided on the inner wall of the drain pipe at the position corresponding to the sealing ring.
[0014] Preferably, a pull post is fixedly connected to the side wall of the sealing plug, and the outer side wall of the pull post is provided with anti-slip texture.
[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model is equipped with a placement component. After the adjustable suction mechanism and the suction mechanism are used, the components of the suction mechanism and the adjustable suction mechanism are folded and placed on the placement rack. Under the action of the L-shaped rubber block and the rubber pad, wear of the components of the suction mechanism and the adjustable suction mechanism can be avoided. Then, the clamping screw is rotated to make it rotate and move along the threaded cylinder. The rotation and movement of the clamping screw drives the pressure plate to rotate and move. When the pressure plate moves and fits against the components of the suction mechanism and the adjustable suction mechanism, the rotation of the clamping screw is stopped, which facilitates the storage of the components of the suction mechanism and the adjustable suction mechanism.
[0016] 2. This utility model is equipped with a drainage component. The sealing plug is removed from inside the drain pipe. The subsequently absorbed scum, along with the nearby clean water, is drawn into the scum-separating box. The clean water is then discharged into the external environment through the drain pipe. The scum remains inside the scum-separating box and the drain pipe due to the barrier effect of the filter screen. When it is necessary to treat the scum on the drain pipe and the filter screen, the operator applies force to rotate the drain pipe. The rotation of the drain pipe causes the fixed ring to rotate, which in turn causes the threaded ring to rotate and move away from the threaded groove. Then, the drain pipe is pulled out from inside the drain outlet, and the scum on the drain pipe and the filter screen is then treated. This makes the operation convenient for the operator. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a sectional view of the U-shaped frame of this utility model; Figure 3 This is a cross-sectional view of the slag separator of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.
[0018] In the diagram: 1. Slag-separating box; 2. Placement assembly; 21. Placement rack; 22. Fixing component; 221. U-shaped frame; 222. Threaded cylinder; 223. Tightening screw; 224. Opening; 23. Rubber pad; 24. L-shaped rubber block; 3. Suction mechanism; 4. Adjustable suction mechanism; 5. Drainage assembly; 51. Drain outlet; 52. Drain pipe; 53. External connecting ring; 54. Threaded groove; 55. Fixing ring; 56. Filter screen; 57. Sealing plug; 58. Threaded ring. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example 1 Please see Figure 1-4 The present invention provides the following technical solution: an adjustable slag suction device for a secondary sedimentation tank, including a slag separation box 1, a drainage component 5 is provided on one side of the slag separation box 1, a suction mechanism 3 is fixedly connected to one side of the slag separation box 1, an adjustable suction mechanism 4 is provided at the end of the suction mechanism 3 away from the slag separation box 1, and a placement component 2 is provided above the slag separation box 1. The placement component 2 includes a placement rack 21, and a fixing member 22 is provided on the top of the placement rack 21.
[0021] Specifically, the fastener 22 includes a U-shaped frame 221 with an opening 224. A threaded cylinder 222 is fixedly connected above the U-shaped frame 221 and around the opening 224. One end of the threaded cylinder 222 is threadedly connected to a tightening screw 223.
[0022] By adopting the above technical solution, after placing the components of the suction mechanism 3 and the adjustable suction mechanism 4 above the placement frame 21, the clamping screw 223 is rotated to rotate and move along the threaded cylinder 222. The clamping screw 223 moves to protrude from the opening 224 and abuts against the components of the suction mechanism 3 and the adjustable suction mechanism 4. Then, the rotation of the clamping screw 223 is stopped, which facilitates the clamping and fixing of the components of the suction mechanism 3 and the adjustable suction mechanism 4, ensuring the stability of the placement of the components of the suction mechanism 3 and the adjustable suction mechanism 4.
[0023] Specifically, a pressure plate is fixedly connected to one end of the clamping screw 223 near the opening 224, and a protective pad is fixedly connected to the side of the pressure plate away from the clamping screw 223.
[0024] By adopting the above technical solution, the rotating movement of the clamping screw 223 drives the pressure plate to rotate. After the pressure plate moves and fits against the components of the suction mechanism 3 and the adjustable suction mechanism 4, the rotating clamping screw 223 stops. The pressure plate is used to press and fix the components of the suction mechanism 3 and the adjustable suction mechanism 4, increasing the pressing and fixing area of the components of the suction mechanism 3 and the adjustable suction mechanism 4, ensuring the pressing and fixing effect of the components of the suction mechanism 3 and the adjustable suction mechanism 4. Moreover, under the action of the protective soft pad, friction between the pressure plate and the components of the suction mechanism 3 and the adjustable suction mechanism 4 can be avoided, thereby preventing wear on the components of the suction mechanism 3 and the adjustable suction mechanism 4.
[0025] Specifically, a rubber pad 23 is fixedly connected to the inner wall of the placement rack 21.
[0026] By adopting the above technical solution, when the components of the suction mechanism 3 and the adjustable suction mechanism 4 are placed on the placement rack 21, the rubber pad 23 can prevent friction between the components of the suction mechanism 3 and the adjustable suction mechanism 4 and the placement rack 21, thereby preventing wear on the components of the suction mechanism 3 and the adjustable suction mechanism 4.
[0027] Specifically, an L-shaped rubber block 24 is fixedly connected above the slag-separating box 1 and to one side of the placement frame 21.
[0028] By adopting the above technical solution, when the components of the suction mechanism 3 and the adjustable suction mechanism 4 are folded and placed on the placement rack 21, the L-shaped rubber block 24 can prevent the components of the suction mechanism 3 and the adjustable suction mechanism 4 from contacting the slag-separating box 1, thereby avoiding friction between the components of the suction mechanism 3 and the adjustable suction mechanism 4 and the slag-separating box 1, which would cause wear to the components of the suction mechanism 3 and the adjustable suction mechanism 4.
[0029] In this embodiment, when sludge removal is required in the secondary sedimentation tank, the height of the adjustable suction mechanism 4 is adjusted according to the amount of sludge on the surface of the secondary sedimentation tank to ensure that the adjustable suction mechanism 4 is in a suitable position. Then, the suction mechanism 3 can be activated to remove the sludge from the surface of the secondary sedimentation tank. During suction, the sludge, along with the nearby clean water, is drawn into the sludge separation box 1. Afterward, the staff can clean the sludge from the sludge separation box 1. After use, the adjustable suction mechanism 4 and the suction mechanism 3 are folded and placed on the placement rack 21. Under the action of the L-shaped rubber block 24 and the rubber pad 23, the parts of the suction mechanism 3 can be prevented from collapsing. The components and adjustable suction mechanism 4 are in direct contact with the slag box 1 and the placement rack 21, thereby preventing wear on the components of the suction mechanism 3 and the adjustable suction mechanism 4. Then, the clamping screw 223 is rotated to rotate and move along the threaded cylinder 222. The rotation and movement of the clamping screw 223 drives the pressure plate to rotate and move. When the pressure plate moves and fits against the components of the suction mechanism 3 and the adjustable suction mechanism 4, the rotation of the clamping screw 223 is stopped, which facilitates the storage and placement of the components of the suction mechanism 3 and the adjustable suction mechanism 4, avoids the components of the suction mechanism 3 and the adjustable suction mechanism 4 from dragging on the ground and causing wear, and ensures the subsequent use effect of the components of the suction mechanism 3 and the adjustable suction mechanism 4. Example 2 The difference between this embodiment and embodiment 1 is that the drainage component 5 includes a drain outlet 51, a drain pipe 52 is inserted into the drain outlet 51, and a filter screen 56 is fixedly connected inside the drain pipe 52.
[0030] Specifically, a fixing ring 55 is fixedly connected to the outer wall of the drain pipe 52, and a threaded ring 58 is fixedly connected to the side wall of the fixing ring 55. An outer ring 53 is fixedly connected to the side wall of the slag separator box 1 and located outside the drain pipe 52. A threaded groove 54 is opened inside the outer ring 53 at the position corresponding to the threaded ring 58.
[0031] By adopting the above technical solution, the drain pipe 52 is inserted into the drain outlet 51. Under the action of the fixing ring 55, the threaded ring 58 is inserted into the threaded groove 54. Then, force is applied to rotate the drain pipe 52. The rotation of the drain pipe 52 drives the fixing ring 55 to rotate. The rotation of the fixing ring 55 drives the threaded ring 58 to be threaded into the threaded groove 54, which facilitates the disassembly and assembly of the drain pipe 52.
[0032] Specifically, a sealing plug 57 is inserted inside the drain pipe 52 and on one side of the filter screen 56.
[0033] By adopting the above technical solution, when the drain pipe 52 is not needed, the sealing plug 57 is inserted into the end of the drain pipe 52. Under the action of the sealing plug 57, dust and other impurities in the external environment can be prevented from falling onto the filter screen 56, thereby preventing the filter screen 56 from becoming clogged and ensuring the drainage effect of the drain pipe 52.
[0034] Specifically, a sealing ring is fixedly connected to the outer wall of the sealing plug 57, and a sealing groove is provided on the inner wall of the drain pipe 52 at the position corresponding to the sealing ring.
[0035] By adopting the above technical solution, the sealing plug 57 is inserted into the end of the drain pipe 52, and the sealing ring is then snapped into the sealing groove. With the cooperation of the sealing ring and the sealing groove, gaps between the sealing plug 57 and the drain pipe 52 can be avoided, ensuring the sealing and dustproof effect of the sealing plug 57.
[0036] Specifically, a pull post is fixedly connected to the side wall of the sealing plug 57, and anti-slip texture is provided on the outer side wall of the pull post.
[0037] By adopting the above technical solution, when it is necessary to remove the sealing plug 57, the operator can apply force by holding the pull column to move the sealing plug 57 away from the drain pipe 52, making it easier for the operator to pick up the sealing plug 57. In addition, the anti-slip texture can prevent the operator's hand from slipping during the application of force.
[0038] In this embodiment, the sealing plug 57 is removed from the inside of the drain pipe 52. The subsequently sucked scum, along with the nearby clean water, is drawn into the scum-separating box 1. The clean water is then discharged into the external environment through the drain pipe 52. The scum remains in the scum-separating box 1 and inside the drain pipe 52 due to the blocking effect of the filter screen 56. When it is necessary to treat the scum on the drain pipe 52 and the filter screen 56, the operator applies force to rotate the drain pipe 52. The rotation of the drain pipe 52 drives the fixed ring 55 to rotate. The rotation of the fixed ring 55 drives the threaded ring 58 to rotate and move away from the threaded groove 54. Then, the drain pipe 52 is pulled out from the drain outlet 51, and then the scum on the drain pipe 52 and the filter screen 56 is treated. This method is convenient for operators.
[0039] The structure and principle of the suction mechanism 3, which consists of a water pump, a hose, a connector, and a second external thread, have been disclosed in Chinese patent application No. 202321613171.2, which discloses an adjustable sludge suction device for a secondary sedimentation tank. Its working principle is as follows: the water pump is installed on the sludge separation box 1, the hose is connected between the water pump and the adjustable suction mechanism 4, and a connector is installed at one end of the hose. The connector is provided with a second external thread. The connector is connected to the bottom end of the adjustable suction mechanism 4 through threaded engagement. In use, the connector on the hose is threaded to the bottom end of the adjustable suction mechanism 4 through the second external thread, and then the water pump can be started to suck up the sludge. During suction, the sludge and the nearby clean water are sucked into the sludge separation box 1.
[0040] The structure and principle of the adjustable suction mechanism 4, which consists of an adjusting pipe, a trumpet pipe, a telescopic pipe, a first external thread, a connecting rod, a float, and an internal thread, have been disclosed in Chinese Patent Application No. 202321613171.2, which discloses an adjustable scum suction device for a secondary sedimentation tank. Its working principle is as follows: One end of the suction mechanism 3 is provided with an adjusting pipe, and connecting rods are fixedly connected to both sides of the adjusting pipe. A float is fixedly connected to the end of the connecting rod away from the adjusting pipe. An internal thread is provided on the inner side wall of the adjusting pipe, and a telescopic pipe is threaded to one end of the adjusting pipe. A first external thread is provided on the outer side wall of the telescopic pipe, and a trumpet pipe is fixedly connected to the end of the telescopic pipe away from the adjusting pipe. In use, since the telescopic pipe is connected to the adjusting pipe through a threaded fit, rotating the telescopic pipe allows the telescopic pipe to rise and fall relative to the adjusting pipe, thereby changing the height of the trumpet pipe. This ensures that the end with the larger opening of the trumpet pipe is in a suitable position, facilitating the suction of scum from the water surface.
[0041] The working principle and usage process of this utility model are as follows: When the secondary sedimentation tank needs to be treated by suctioning scum, the sealing plug 57 is removed from the inside of the drain pipe 52. Then, the height of the adjustable suction mechanism 4 is adjusted according to the amount of scum on the surface of the secondary sedimentation tank so that the adjustable suction mechanism 4 is in a suitable position. Then, the suction mechanism 3 is started to suction the scum on the surface of the secondary sedimentation tank. During suction, the scum and the nearby clean water are sucked into the scum-separating box 1. The clean water is discharged into the external environment through the drain pipe 52, while the scum remains in the scum-separating box 1 and inside the drain pipe 52 due to the blocking effect of the filter screen 56. Then, the staff cleans the scum in the scum-separating box 1. Then, the drain pipe 52 is rotated. The rotation of the drain pipe 52 drives the fixed ring 55 to rotate. The rotation of the fixed ring 55 drives the threaded ring 58 to rotate and move away from the threaded groove 54. Then, the drain pipe 52 is pulled out from the drain outlet 51. Then, the drain pipe 52 and the filter screen 56 are cleaned. After the scum is treated, the adjustable suction mechanism 4 and the suction mechanism 3 are used. After use, the components of the suction mechanism 3 and the adjustable suction mechanism 4 are folded and placed on the placement rack 21. Under the action of the L-shaped rubber block 24 and the rubber pad 23, the components of the suction mechanism 3 and the adjustable suction mechanism 4 are prevented from directly contacting the scum-separating box 1 and the placement rack 21, thereby avoiding wear on the components of the suction mechanism 3 and the adjustable suction mechanism 4. Then, the clamping screw 223 is rotated to make it rotate and move along the threaded cylinder 222. The rotation and movement of the clamping screw 223 drives the pressure plate to rotate and move. When the pressure plate moves and fits against the components of the suction mechanism 3 and the adjustable suction mechanism 4, the rotation of the clamping screw 223 is stopped. This makes it easy to store and place the components of the suction mechanism 3 and the adjustable suction mechanism 4, avoiding wear caused by dragging the components of the suction mechanism 3 and the adjustable suction mechanism 4 on the ground, and ensuring the subsequent use effect of the components of the suction mechanism 3 and the adjustable suction mechanism 4.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An adjustable slag suction device for a secondary sedimentation tank, comprising a slag separation box (1), characterized in that: A drainage component (5) is provided on one side of the slag separation box (1), a suction mechanism (3) is fixedly connected to one side of the slag separation box (1), an adjustable suction mechanism (4) is provided at the end of the suction mechanism (3) away from the slag separation box (1), and a placement component (2) is provided above the slag separation box (1). The placement assembly (2) includes a placement rack (21), and a fastener (22) is provided above the placement rack (21).
2. The adjustable sludge suction device for a secondary sedimentation tank according to claim 1, characterized in that: The fastener (22) includes a U-shaped frame (221), an opening (224) is provided on the U-shaped frame (221), and a threaded cylinder (222) is fixedly connected above the U-shaped frame (221) and around the opening (224). One end of the threaded cylinder (222) is threadedly connected to a clamping screw (223).
3. The adjustable sludge suction device for a secondary sedimentation tank according to claim 2, characterized in that: A pressure plate is fixedly connected to one end of the clamping screw (223) near the opening (224), and a protective pad is fixedly connected to the side of the pressure plate away from the clamping screw (223).
4. The adjustable sludge suction device for a secondary sedimentation tank according to claim 1, characterized in that: A rubber pad (23) is fixedly connected to the inner wall of the placement rack (21).
5. The adjustable sludge suction device for a secondary sedimentation tank according to claim 1, characterized in that: An L-shaped rubber block (24) is fixedly connected above the slag box (1) and on one side of the placement frame (21).
6. The adjustable sludge suction device for a secondary sedimentation tank according to claim 1, characterized in that: The drainage assembly (5) includes a drain outlet (51), a drain pipe (52) is inserted into the drain outlet (51), and a filter screen (56) is fixedly connected inside the drain pipe (52).
7. The adjustable sludge suction device for a secondary sedimentation tank according to claim 6, characterized in that: A fixing ring (55) is fixedly connected to the outer wall of the drain pipe (52), and a threaded ring (58) is fixedly connected to the side wall of the fixing ring (55). An outer ring (53) is fixedly connected to the side wall of the slag box (1) and located outside the drain pipe (52). A threaded groove (54) is opened inside the outer ring (53) at the position corresponding to the threaded ring (58).
8. The adjustable sludge suction device for a secondary sedimentation tank according to claim 6, characterized in that: A sealing plug (57) is inserted inside the drain pipe (52) and on one side of the filter screen (56).
9. The adjustable sludge suction device for a secondary sedimentation tank according to claim 8, characterized in that: A sealing ring is fixedly connected to the outer wall of the sealing plug (57), and a sealing groove is provided on the inner wall of the drain pipe (52) at the position corresponding to the sealing ring.
10. The adjustable sludge suction device for a secondary sedimentation tank according to claim 8, characterized in that: A pull post is fixedly connected to the side wall of the sealing plug (57), and anti-slip texture is provided on the outer side wall of the pull post.