Vertical high-efficiency combined sedimentation equipment

Abstract

The utility model discloses a vertical high -efficient composite type sedimentation equipment, including equipment shell, box body internal structure and appurtenances, the equipment shell is by box body, support leg, the collection of silt bucket constitutes, and the box body is square vertical structure, and support leg is connected with the bottom of box body, and the height can be customized, and the collection of silt bucket is conical hopper shape, and bottom is equipped with the mud flange and mud electric valve of discharging, box body internal structure sets up in the box body, including forced circulation pipe, reflection cone bucket, square water distribution pipe, reflection board, filler flush pipe, sedimentation filler and outlet weir groove, the appurtenances includes turbidity detector, on -line liquid level detector, air compressor, control box, forced circulation valve and filler flush valve, the utility model discloses through the structure optimization, increases sewage contact area, reduces the water flow speed, has the small area of land, and the simple installation, and need not the person on duty, and the operation and the operation and maintenance cost are low, and the water quality stability advantage such as outlet, is applicable to the removal of suspended solids in sewage pretreatment and biochemical rear end mud water separation.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, specifically a vertical high-efficiency composite sedimentation device, which is mainly used in wastewater pretreatment and biochemical post-treatment mud-water separation to remove suspended solids and other particulate matter from the water. Background Technology

[0002] In wastewater treatment, wastewater typically contains a large amount of suspended solids, particulate matter, sludge, and other impurities, resulting in high pollutant concentrations. Improper treatment can easily impact subsequent wastewater treatment systems in the plant. Currently, the most widely used sedimentation equipment in the industry is the inclined tube sedimentation tank, which is based on the "shallow sedimentation" theory. It achieves solid-liquid separation by shortening the particle settling distance and increasing the separation area through inclined tubes set in the sedimentation zone.

[0003] However, inclined tube sedimentation tanks have several drawbacks: First, the inclined tube structure easily leads to sludge accumulation at the bottom, requiring mechanical sludge removal devices, resulting in high maintenance costs and a high failure rate. Second, when used as a secondary sedimentation tank, the sticky sludge easily adheres to the inclined tube walls, forming a biofilm and clogging the pipes. Sludge accumulation may also trigger denitrification or sludge upwelling, leading to deterioration of effluent quality. Third, the short retention time makes it prone to turbidity in the effluent when treating high concentrations or sudden loads, making it unsuitable for secondary sedimentation tanks. Fourth, the aging inclined tube materials need to be replaced regularly, significantly increasing long-term operation and maintenance costs. Fifth, uneven water distribution may lead to localized turbulent flow, damaging floc stability and affecting sedimentation efficiency. Sixth, inclined tubes are prone to algae growth during long-term operation, increasing cleaning difficulty. Therefore, a more efficient, stable, and easy-to-maintain sedimentation device is urgently needed. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a vertical high-efficiency composite sedimentation device to overcome the shortcomings of existing inclined tube sedimentation tanks, such as complex maintenance, poor resistance to shock loads, high operation and maintenance costs, and unstable effluent quality. This device aims to reduce the floor space, simplify installation, shorten the construction period, and improve treatment efficiency.

[0005] This utility model is achieved through the following technical solution: a vertical high-efficiency composite sedimentation device, including a device shell, an internal structure of the box, and auxiliary equipment; the device shell is composed of a box, support legs, and a sludge collection hopper; the box is a square vertical structure; the support legs are connected to the bottom of the box, and the height can be customized; the sludge collection hopper is a conical funnel shape, and the bottom is equipped with a sludge discharge flange and a sludge discharge electric valve; the internal structure of the box is set inside the box and includes a forced circulation pipe, a reflective cone hopper, a square water distribution pipe, a reflector plate, a packing flushing pipe, sedimentation packing, and an outlet weir; the auxiliary equipment includes a turbidity detector, an online liquid level detector, an air compressor, a control box, a forced circulation valve, and a packing flushing valve.

[0006] The top of the box is equipped with two lifting lugs.

[0007] The angle between the inclined side of the mud collection hopper and the ground is 60°.

[0008] The forced circulation pipe consists of a pipe and a high-pressure nozzle; the reflective cone is an inverted V-shaped square cone structure with a cone apex angle of 60° and a water passage hole between it and the sludge collection hopper; the square water distribution pipe is located inside the reflective cone and has a porous structure with the opening direction facing the reflective cone.

[0009] The reflector is a rectangular plate with a 30° angle to the box body, and there are four of them, which together form a secondary mud collection and baffle hopper; the packing flushing pipe is a tree-shaped air distribution pipe, and each branch pipe is equipped with a high-pressure nozzle; the sedimentation packing is made of corrugated plate with a concave-convex structure, with a plate spacing of 120mm, a plate inclination angle of 65°, and is connected to the bottom support by a buckle.

[0010] The outlet weir is a rectangular trough located in the upper part of the box; the turbidity detector and the online liquid level detector are electrically connected to the control box, which is equipped with a PLC and components and has remote and local control functions; the forced circulation valve is used in conjunction with the forced circulation pipe, and the packing flushing valve is used in conjunction with the packing flushing pipe.

[0011] The beneficial effects of this utility model are: the equipment adopts a vertical square structure design, which greatly reduces the floor space compared with the traditional inclined tube sedimentation tank, and the structure is compact, the installation process is simple, and the construction cycle can be shortened. Equipped with an electric sludge discharge valve, it achieves automatic sludge discharge without manual operation, reducing labor input and lowering operating costs; It is equipped with a packing flushing pipe, which can flush the sedimentation packing regularly or automatically, effectively preventing sludge adhesion and accumulation, and ensuring stable effluent quality. The three-stage sludge-water separation is achieved through a reflective cone bucket, reflective plate, and sedimentation packing, which increases the contact area between wastewater and the separation components, reduces the water flow velocity, and significantly improves the solid-liquid separation efficiency. Sedimentation packing materials can be selected from different materials such as carbon steel, stainless steel, PP, and fiberglass, depending on the characteristics of the wastewater being treated. They have good chemical corrosion resistance and wear resistance, long service life, and reduced operation and maintenance costs. The sedimentation packing is connected to the bottom support with snap-fit, making it easy to disassemble and facilitate subsequent maintenance, cleaning, and replacement. Square porous water distribution pipes are used for water distribution to ensure uniform distribution of sewage, avoid local water turbulence, ensure floc stability, and improve sedimentation effect; It is equipped with a forced circulation pipe to force the water body to form a stable circulation, ensuring that the water flow direction is from bottom to top, further ensuring the stability of the output water; The control box integrates PLC control functions, links various testing instruments and valves, and enables one-button automatic operation of the equipment. During operation, only periodic inspections by personnel are required, and no dedicated personnel are needed to be on duty, basically achieving zero maintenance. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram: 1. Box body; 2. Support legs; 3. Sludge hopper; 4. Sludge discharge electric valve; 5. Forced circulation pipe; 6. Reflective cone hopper; 7. Square water distribution pipe; 8. Reflector plate; 9. Packing flushing pipe; 10. Sedimentation packing; 11. Effluent weir; 12. Turbidity detector; 13. Online liquid level detector; 14. Air compressor; 15. Control box; 16. Forced circulation valve; 17. Packing flushing valve; 18. Inlet; 19. Outlet. Detailed Implementation

[0015] 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.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are 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; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0017] like Figure 1The vertical high-efficiency composite sedimentation equipment shown consists of three parts: the equipment shell, the internal structure of the tank, and auxiliary equipment.

[0018] Equipment Casing: Serving as the basic supporting structure of the equipment, it includes the housing 1, support legs 2, and sludge collection hopper 3. Housing 1 adopts a square, vertical design, with all component connections secured by welding to ensure structural strength. Two lifting lugs are welded to the top of housing 1 for easy hoisting, transportation, and installation. Support legs 2 are fixedly connected to the bottom of housing 1, and their height can be customized according to the on-site installation environment and process requirements. Sludge collection hopper 3 has a conical funnel-shaped structure with a 60° angle between its inclined side and the ground, facilitating sludge settling and collection. A sludge discharge flange is installed at the bottom of sludge collection hopper 3, connected to a sludge discharge electric valve 4 for automatic sludge discharge.

[0019] Internal Structure of the Tank: This is the core component for achieving sludge-water separation, located inside tank 1. It includes a forced circulation pipe 5, a reflective cone 6, a square water distribution pipe 7, a reflector plate 8, a packing flushing pipe 9, sedimentation packing 10, and an effluent weir 11. The forced circulation pipe 5 consists of a main pipe and spaced high-pressure nozzles, driving the water to circulate through a high-pressure airflow. The reflective cone 6 is an inverted V-shaped square cone with a 60° angle at the apex. A water passage hole is pre-drilled between it and the sludge collection hopper 3 to allow the separated water to flow through. The square water distribution pipe 7 is installed inside the reflective cone 6, with multiple water distribution holes on its wall facing the reflective cone 6 to ensure uniform wastewater distribution. The reflector plate 8 is a rectangular flat plate, fixed at a 30° angle to the inner wall of tank 1. Four plates are installed, and the four reflector plates 8 work together to form a secondary sludge collection and trapping hopper, used to intercept unsettled sludge in the water. The packing flushing pipe 9 adopts a tree-like air distribution pipe design, consisting of a main pipe and multiple branch pipes. Each branch pipe is equipped with a high-pressure nozzle for flushing the sedimentation packing 10. The sedimentation packing 10 is made of corrugated board with a concave-convex structure, with a plate spacing of 120mm and a plate inclination angle of 65°. It is connected to the bottom support by clips and can be quickly disassembled and replaced. The effluent weir 11 is a rectangular tank installed in the upper part of the tank 1, used to collect the clear water after multi-stage separation.

[0020] Auxiliary equipment: This equipment is used for automated operation and monitoring, including a turbidity detector 12, an online level detector 13, an air compressor 14, a control box 15, a forced circulation valve 16, and a packing flushing valve 17. The turbidity detector 12 is installed inside the effluent weir 11 to detect the turbidity of the effluent in real time and transmits the data to the control box 15. The online level detector 13 is installed inside the housing 1 to monitor the liquid level in the housing 1 in real time and also transmits the data to the control box 15. The air compressor 14 provides high-pressure airflow to the forced circulation pipe 5 and the packing flushing pipe 9. The control box 15 integrates a PLC controller and various electrical components, receives signals from the turbidity detector 12 and the online level detector 13, and controls the opening and closing of the sludge discharge electric valve 4, the forced circulation valve 16, and the packing flushing valve 17 according to a preset program. The control box 15 supports both remote and local control modes for convenient operation and management. Forced circulation valve 16 is connected in series in the air inlet pipe of forced circulation pipe 5 to regulate the air intake of forced circulation pipe 5 and control the water circulation intensity. Packing flushing valve 17 is connected in series in the air inlet pipe of packing flushing pipe 9 to control the on / off state and flow rate of flushing air.

[0021] The working process of the equipment is as follows: Wastewater enters the square water distribution pipe 7 through the inlet 18, and is evenly sprayed onto the surface of the reflective cone 6 through the water distribution holes on the square water distribution pipe 7. Under the guiding action of the reflective cone 6, some of the sludge in the wastewater settles into the sludge collection hopper 3 under the action of gravity, completing the first sludge-water separation. After the first separation, the water flows upward through the water passage between the reflective cone 6 and the sludge collection hopper 3, and forms a stable circulation under the drive of the forced circulation pipe 5. It flows towards the secondary sludge collection and sludge blocking hopper formed by the reflective plate 8. Some of the suspended sludge in the water is intercepted by the reflective plate 8 and slides down the reflective plate 8 to the sludge collection hopper 3, completing the second sludge-water separation. After the second separation, the water continues to flow upward and enters the sedimentation packing area 10. Under the action of the corrugated plate with concave and convex structure, the water flow velocity decreases, the wastewater and the packing are in full contact, and the remaining fine sludge particles settle under the action of gravity, completing the third sludge-water separation. After the third separation, the clear water flows upward to the outlet weir 11, is collected by the outlet weir 11, and is discharged through the outlet 19.

[0022] During equipment operation, the control box 15 controls the sludge discharge electric valve 4 to open periodically according to preset time parameters to discharge the sludge in the sludge collection hopper 3; when the turbidity detector 12 detects that the turbidity of the effluent exceeds the set threshold, or the online liquid level detector 13 detects that the liquid level in the tank 1 is abnormal, the control box 15 automatically opens the packing flushing valve 17 to flush the sedimentation packing 10 through the high-pressure nozzle of the packing flushing pipe 9 to prevent sludge blockage; the forced circulation valve 16 opens periodically according to the preset program of the control box 15 to maintain stable water circulation.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vertical, high-efficiency, composite sedimentation device, characterized in that: The equipment includes an outer shell, an internal structure of the housing, and auxiliary equipment. The outer shell consists of a housing (1), legs (2), and a sludge hopper (3). The housing (1) is a square vertical structure. The legs (2) are connected to the bottom of the housing (1) and their height can be customized. The sludge hopper (3) is a conical funnel shape with a sludge discharge flange and a sludge discharge electric valve (4) at the bottom. The internal structure of the housing is set inside the housing (1) and includes a forced circulation pipe (5), a reflective cone hopper (6), a square water distribution pipe (7), a reflector plate (8), a packing flushing pipe (9), sedimentation packing (10), and an outlet weir (11). The auxiliary equipment includes a turbidity detector (12), an online liquid level detector (13), an air compressor (14), a control box (15), a forced circulation valve (16), and a packing flushing valve (17).

2. The vertical high-efficiency composite sedimentation device according to claim 1, characterized in that: The top of the box (1) is provided with two lifting lugs.

3. The vertical high-efficiency composite sedimentation device according to claim 1, characterized in that: The angle between the inclined side of the mud collection hopper (3) and the ground is 60°.

4. The vertical high-efficiency composite sedimentation device according to claim 1, characterized in that: The forced circulation pipe (5) consists of a pipe and a high-pressure nozzle; the reflective cone bucket (6) is an inverted V-shaped square cone bucket structure with a cone apex angle of 60° and a water passage hole between it and the mud collection bucket (3); the square water distribution pipe (7) is located inside the reflective cone bucket (6) and has a porous structure with the opening direction facing the reflective cone bucket (6).

5. The vertical high-efficiency composite sedimentation device according to claim 1, characterized in that: The reflector plate (8) is a rectangular plate with an angle of 30° with the box body (1). There are four plates in total, which together form a secondary mud collection and mud-blocking hopper. The filler flushing pipe (9) is a tree-shaped air distribution pipe, and each branch pipe is equipped with a high-pressure nozzle. The sedimentation filler (10) is made of corrugated plate with a concave-convex structure, with a plate spacing of 120mm and a plate inclination angle of 65°. It is connected to the bottom support by a buckle.

6. The vertical high-efficiency composite sedimentation device according to claim 1, characterized in that: The outlet weir (11) is a rectangular trough, located in the upper part of the box (1); the turbidity detector (12) and the online liquid level detector (13) are electrically connected to the control box (15), the control box (15) is equipped with a PLC and components, and has remote and local control functions; the forced circulation valve (16) is used in conjunction with the forced circulation pipe (5), and the packing flushing valve (17) is used in conjunction with the packing flushing pipe (9).

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