A device for treating waste incineration slag sewage circulation
By designing a combined structure of filter tank, conical bucket, filter screen cylinder and spiral blades, and combining it with air pump and servo motor drive, the problem of easy clogging in traditional devices is solved, realizing efficient filtration and automatic cleaning of waste incineration slag and wastewater, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QINWANG ENVIRONMENTAL PROTECTION MATERIAL CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional wastewater treatment equipment is prone to clogging when treating wastewater from incineration furnaces, leading to decreased filtration efficiency and increased maintenance costs and labor intensity.
It adopts a combination structure of filter tank, conical bucket, filter screen cylinder, spiral blades and air jet pipe, combined with air pump and servo motor drive, to realize automatic cleaning of filter screen and collection of impurities, and prevent clogging.
It effectively prevents filter clogging, improves filtration efficiency, reduces maintenance frequency, lowers maintenance costs, and enables efficient recycling of wastewater.
Smart Images

Figure CN224292668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slag wastewater treatment technology, specifically to a device for recycling wastewater from waste incineration slag. Background Technology
[0002] The slag from municipal solid waste incineration power plants is mainly a heterogeneous mixture composed of stones, sand, glass, ceramics, ash, and a small amount of unburned waste. After crushing and sorting, the slag has stable chemical properties, good durability, and high strength. Slag is a non-toxic general waste that can be directly landfilled or processed for utilization. After technical processing, the slag is suitable for making non-fired bricks or other building materials and has a certain recycling value.
[0003] Currently, the processing of slag generates a large amount of wastewater. Direct discharge of this wastewater not only causes serious environmental pollution but also wastes water resources. Treating and recycling wastewater can save water resources and reduce operating costs. Traditional wastewater treatment devices mostly use simple filter screens or filter cartridges for filtration. However, when treating wastewater from incineration slag, these devices are prone to clogging due to the large amount of solid impurities in the wastewater, leading to a rapid decline in filtration efficiency. Clogged screens require frequent replacement or cleaning, increasing maintenance costs and labor intensity. Utility Model Content
[0004] The purpose of this invention is to provide a wastewater recycling device for treating waste incinerator slag, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a wastewater recycling device for treating waste incinerator slag, comprising:
[0006] A filter tank, wherein a connecting pipe is provided in the lower middle part of the filter tank, a conical hopper is connected to the lower middle part of the inner cavity of the filter tank, a filter screen cylinder is fixed to the top of the conical hopper, a water inlet pipe is connected to the top left side wall of the conical hopper, and a drain pipe is connected to the upper right side of the filter tank.
[0007] A hollow shaft is rotatably embedded in the top of the filter canister. The top of the filter canister is provided with a drive assembly for driving the hollow shaft to rotate. The top of the hollow shaft is connected to an air supply pipe through a rotary joint. Air jet pipes are connected to the left and right sides of the lower part of the hollow shaft. A drive shaft is fixed at the bottom of the hollow shaft. The lower end of the drive shaft rotates through the filter screen and extends into the connecting pipe. The drive shaft is fixedly fitted with a first spiral blade, a second spiral blade, and a third spiral blade from top to bottom.
[0008] A sludge collection tank, the top of which is connected to a connecting pipe.
[0009] Preferably, the end of the water inlet pipe away from the conical hopper extends out of the filter tank.
[0010] Preferably, the inner cavity of the conical hopper communicates with the inner cavity of the connecting pipe;
[0011] The first spiral blade is nested inside the filter cylinder, the second spiral blade is nested inside the conical hopper, and the third spiral blade is nested inside the connecting pipe.
[0012] Preferably, a first control valve is installed at the lower part of the connecting pipe, the first control valve is located below the drive shaft, the sludge collection tank is conical, a drain pipe is provided at the bottom of the sludge collection tank, and a second control valve is installed on the drain pipe. The sludge collection tank is conducive to the sedimentation and centralized collection of solid impurities in sewage, and the drain pipe and the second control valve facilitate the periodic cleaning of impurities to prevent the device from being blocked.
[0013] Preferably, an air pump is installed on the top of the filter tank, the output end of the air pump is connected to an air supply pipe, a bracket is fixed on the top of the filter tank, and the air supply pipe is fixedly inserted through the bracket. The air pump is configured to provide a stable air source for the air jet pipe to ensure the cleaning effect of the filter cylinder.
[0014] Preferably, the two jet pipes surround the outside of the filter cylinder, and multiple jet nozzles are installed at equal intervals on the side of the jet pipes near the filter cylinder. The multiple jet nozzles on the jet pipes can spray air evenly onto the filter cylinder, improve the cleaning effect, ensure that impurities on the surface of the filter cylinder are thoroughly removed, and prevent the mesh of the filter cylinder from being blocked.
[0015] Preferably, the drive assembly includes a support, a drive gear, and a driven gear. The driven gear is fixedly sleeved on the top of the hollow shaft. A servo motor is mounted on the support. The output end of the servo motor passes through the support and is connected to the drive gear. The drive gear meshes with the driven gear. When the servo motor operates, it drives the drive gear to rotate. The meshing of the drive gear and the driven gear drives the hollow shaft to rotate, thereby driving the jet pipe and the drive shaft to rotate.
[0016] Preferably, the bottom edge of the filter tank is fixed with multiple support feet, which can evenly distribute the weight of the device and ensure that the device remains stable during operation.
[0017] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0018] 1. By incorporating an air pump, air supply pipe, hollow shaft, air jet pipe, and air jet nozzle, the filter screen can effectively remove blockages from its surface, improve wastewater filtration efficiency, and reduce the frequency of filter screen replacement, thus reducing maintenance costs.
[0019] 2. By setting up the first spiral blade, the second spiral blade, the third spiral blade, the conical bucket, the connecting pipe and the sludge collection tank, the fixed impurities in the sewage can be transported downwards to the sludge collection tank for storage, while facilitating the regular cleaning of solid impurities in the sludge collection tank and maintaining the long-term stable operation of the device;
[0020] 3. This entire device integrates filtration, stirring, pneumatic cleaning, and impurity collection into one compact and fully functional unit, occupying little space. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is another schematic diagram of the present invention;
[0024] Figure 3 This is a three-dimensional sectional view of the present invention;
[0025] Figure 4 This is a front sectional view of the present invention;
[0026] Figure 5 This is a schematic diagram of the connection between the hollow shaft and the transmission shaft of this utility model.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Filter tank; 2. Connecting pipe; 3. Conical hopper; 4. Filter screen cylinder; 5. Hollow shaft; 6. Air supply pipe; 7. Air jet pipe; 8. Drive shaft; 9. First helical blade; 10. Second helical blade; 11. Third helical blade; 12. Water inlet pipe; 13. Drain pipe; 14. Sludge collection tank; 15. First control valve; 16. Sludge discharge pipe; 17. Second control valve; 18. Air pump; 19. Bracket; 20. Air jet nozzle; 21. Support; 22. Drive gear; 23. Driven gear; 24. Servo motor; 25. Support foot. Detailed Implementation
[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0030] This utility model provides, for example Figures 1 to 5 The device shown is a wastewater recycling system for treating waste incinerator slag, comprising:
[0031] The filter tank 1 has a connecting pipe 2 in the lower middle part of the filter tank 1, a conical bucket 3 connected to the lower middle part of the inner cavity of the filter tank 1, a filter screen cylinder 4 fixed to the top of the conical bucket 3, a water inlet pipe 12 connected to the top left side wall of the conical bucket 3, and a drain pipe 13 connected to the upper right side of the filter tank 1.
[0032] A hollow shaft 5 is rotatably embedded in the top of the filter canister 1. The top of the filter canister 1 is provided with a drive assembly that drives the hollow shaft 5 to rotate. The top of the hollow shaft 5 is connected to an air supply pipe 6 through a rotary joint. The lower left and right sides of the hollow shaft 5 are connected to jet pipes 7. The bottom of the hollow shaft 5 is fixed with a drive shaft 8. The lower end of the drive shaft 8 rotates through the filter screen cylinder 4 and extends into the connecting pipe 2. The drive shaft 8 is fixedly sleeved with a first spiral blade 9, a second spiral blade 10 and a third spiral blade 11 from top to bottom.
[0033] The top of the sludge collection tank 14 is connected to the connecting pipe 2.
[0034] The end of the water inlet pipe 12 that is away from the conical hopper 3 extends out of the filter tank 1.
[0035] The inner cavity of the conical bucket 3 is connected to the inner cavity of the connecting pipe 2;
[0036] The first spiral blade 9 is nested inside the filter cylinder 4, the second spiral blade 10 is nested inside the conical hopper 3, and the third spiral blade 11 is nested inside the connecting pipe 2.
[0037] A first control valve 15 is installed at the lower part of the connecting pipe 2. The first control valve 15 is located below the drive shaft 8. The sludge collection tank 14 is conical. A drain pipe 16 is provided at the bottom of the sludge collection tank 14. A second control valve 17 is installed on the drain pipe 16. The sludge collection tank 14 is conducive to the sedimentation and centralized collection of solid impurities in sewage. The drain pipe 16 and the second control valve 17 facilitate the periodic cleaning of impurities and prevent the device from being blocked.
[0038] An air pump 18 is installed on the top of the filter tank 1. The output end of the air pump 18 is connected to the air supply pipe 6. A bracket 19 is fixed on the top of the filter tank 1. The air supply pipe 6 is fixedly passed through the bracket 19. The air pump 18 is configured to provide a stable air source to the jet pipe 7 to ensure the cleaning effect of the filter cylinder 4.
[0039] Two jet pipes 7 surround the outside of the filter cylinder 4. Multiple jet nozzles 20 are installed at equal intervals on the side of the jet pipes 7 near the filter cylinder 4. The multiple jet nozzles 20 on the jet pipes 7 can spray air evenly onto the filter cylinder 4, improve the cleaning effect, ensure that impurities on the surface of the filter cylinder 4 are thoroughly removed, and at the same time prevent the mesh of the filter cylinder 4 from being blocked.
[0040] The drive assembly includes a support 21, a drive gear 22, and a driven gear 23. The driven gear 23 is fixedly sleeved on the top of the hollow shaft 5. A servo motor 24 is mounted on the support 21. The output end of the servo motor 24 passes through the support 21 and is connected to the drive gear 22. The drive gear 22 and the driven gear 23 are meshed together. When the servo motor 24 works, it drives the drive gear 22 to rotate. The meshing of the drive gear 22 and the driven gear 23 drives the hollow shaft 5 to rotate, thereby driving the jet pipe 7 and the drive shaft 8 to rotate.
[0041] Multiple support feet 25 are fixed to the bottom edge of the filter tank 1. The multiple support feet 25 can evenly distribute the weight of the device and ensure that the device remains stable during operation.
[0042] In this utility model, sewage enters the conical hopper 3 inside the filter tank 1 through the inlet pipe 12. Under the action of the filter screen cylinder 4, solid impurities in the sewage are intercepted inside the filter screen cylinder 4, and the filtered sewage is discharged through the drain pipe 13.
[0043] Servo motor 24 starts and drives hollow shaft 5 to rotate through the meshing of drive gear 22 and driven gear 23. Hollow shaft 5 drives transmission shaft 8 to rotate. The rotation of transmission shaft 8 and the rotation of the first spiral blade 9, second spiral blade 10 and third spiral blade 11 on it generate a downward force, which conveys impurities in the sewage downward, so that the impurities enter the collection tank 14 through conical bucket 3 and connecting pipe 2 for collection. At the same time, it avoids the accumulation of impurities in filter screen 4. Solid impurities in sewage are deposited in collection tank 14. The first control valve 15 on connecting pipe 2 is closed periodically and the second control valve 17 on sewage pipe 16 is opened to discharge impurities out of the device, keeping the device clean and operating efficiently.
[0044] When the hollow shaft 5 rotates, it drives the jet pipe 7 to rotate around the filter cylinder 4. The air pump 18 starts and delivers high-pressure gas into the hollow shaft 5 through the air supply pipe 6 and the rotary joint. Then, the gas is sprayed into the filter cylinder 4 through the jet nozzle 20 on the jet pipe 7 to remove the blockage on the surface of the filter cylinder 4 and extend the service life of the filter.
[0045] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A wastewater recycling device for treating waste incinerator slag, characterized in that, include: A filter tank (1) is provided with a connecting pipe (2) in the middle of its lower side. A conical bucket (3) is connected to the middle of the lower side of the inner cavity of the filter tank (1). A filter screen cylinder (4) is fixed to the top of the conical bucket (3). A water inlet pipe (12) is connected to the left side wall of the top of the conical bucket (3). A drain pipe (13) is connected to the upper right side of the filter tank (1). A hollow shaft (5) is rotatably embedded in the top of a filter canister (1). The top of the filter canister (1) is provided with a drive assembly for driving the hollow shaft (5) to rotate. The top of the hollow shaft (5) is connected to an air supply pipe (6) through a rotary joint. The lower left and right sides of the hollow shaft (5) are connected to jet pipes (7). The bottom end of the hollow shaft (5) is fixed with a drive shaft (8). The lower end of the drive shaft (8) rotates through the filter screen cylinder (4) and extends into the connecting pipe (2). The drive shaft (8) is fixedly sleeved with a first spiral blade (9), a second spiral blade (10) and a third spiral blade (11) from top to bottom. A sludge collection tank (14) is connected at the top to a connecting pipe (2).
2. The wastewater recycling device for treating waste incinerator slag according to claim 1, characterized in that: The end of the water inlet pipe (12) away from the conical bucket (3) extends out of the filter tank (1).
3. The wastewater recycling device for treating waste incinerator slag according to claim 1, characterized in that: The inner cavity of the conical bucket (3) is connected to the inner cavity of the connecting pipe (2); The first spiral blade (9) is nested inside the filter cylinder (4), the second spiral blade (10) is nested inside the conical bucket (3), and the third spiral blade (11) is nested inside the connecting pipe (2).
4. The wastewater recycling device for treating waste incinerator slag according to claim 1, characterized in that: A first control valve (15) is installed at the lower part of the connecting pipe (2). The first control valve (15) is located below the drive shaft (8). The sludge collection tank (14) is conical. A sludge discharge pipe (16) is provided at the bottom of the sludge collection tank (14). A second control valve (17) is installed on the sludge discharge pipe (16).
5. The wastewater recycling device for treating waste incinerator slag according to claim 1, characterized in that: An air pump (18) is installed on the top of the filter tank (1). The output end of the air pump (18) is connected to the air supply pipe (6). A bracket (19) is fixed on the top of the filter tank (1). The air supply pipe (6) is fixedly inserted through the bracket (19).
6. The wastewater recycling device for treating waste incinerator slag according to claim 1, characterized in that: Two jet pipes (7) surround the outside of the filter cylinder (4), and multiple jet nozzles (20) are installed at equal intervals on the side of the jet pipes (7) near the filter cylinder (4).
7. The wastewater recycling device for treating waste incinerator slag according to claim 1, characterized in that: The drive assembly includes a support (21), a drive gear (22), and a driven gear (23). The driven gear (23) is fixedly sleeved on the top of the hollow shaft (5). A servo motor (24) is mounted on the support (21). The output end of the servo motor (24) passes through the support (21) and is connected to the drive gear (22). The drive gear (22) meshes with the driven gear (23).
8. The wastewater recycling device for treating waste incinerator slag according to claim 1, characterized in that: The bottom edge of the filter tank (1) is fixed with multiple support feet (25).