Self-circulation sewage zero discharge system
By using the sand and gravel separation screen and water circulation treatment structure in the self-circulating wastewater zero discharge system, the problem of low sand and gravel separation and utilization rate in wastewater is solved, and efficient wastewater treatment and recycling are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-31
AI Technical Summary
Existing zero-discharge wastewater systems cannot effectively separate sand and gravel from wastewater, resulting in low utilization of the mixture, and static separation treatment cannot guarantee the wastewater treatment effect.
The system employs a combination of first and second sand and gravel separation screens, an extended discharge pipe, a motor-driven vibration structure, and a filter screen to achieve effective separation and separate collection of sand and gravel. Combined with water circulation treatment via a water storage tank and a circulating pump, the system utilizes a fine sand recovery tank and a secondary filter screen to enhance the separation effect.
It achieves effective separation and separate utilization of sand and gravel, ensuring the effectiveness of sewage treatment, preventing secondary pollution, and improving the recycling rate of sewage.
Smart Images
Figure CN224056851U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically a self-circulating wastewater zero-discharge system. Background Technology
[0002] Concrete is a commodity used in the construction of social infrastructure. During the use of concrete, the wastewater generated in the mixing plant includes wastewater from washing tank trucks, wastewater from washing waste materials, and wastewater from washing the site. This wastewater must be treated by a system and meet the discharge standards before it can be discharged or reused. In order to save energy, a wastewater treatment system is used to treat the wastewater in the mixing plant. Zero wastewater discharge needs to be achieved through a combination of equipment. The current zero wastewater discharge system mainly uses efficient water treatment technology to achieve a sustainable water management solution that completely recycles wastewater and discharges no liquid waste. All wastewater is transformed into reusable water resources through physical, chemical and biological treatment.
[0003] However, in the current process of sewage treatment, the sand and gravel in the sewage cannot be effectively separated and treated separately, resulting in the mixing of sand and gravel and a low subsequent utilization rate. At the same time, the sewage treatment achieved by static separation and treatment methods cannot guarantee the actual treatment effect of sewage. Summary of the Invention
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a self-circulating zero-discharge sewage system, which solves the problems of current sewage treatment processes where sand and gravel cannot be effectively separated separately, resulting in sand and gravel mixing and low subsequent utilization rates. Furthermore, the static separation methods used for sewage treatment cannot guarantee the actual treatment effect.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-circulating zero-discharge sewage system, comprising a treatment tank, an inlet hopper installed at the top of the treatment tank, a first sand and gravel separation screen frame arranged along an inclined direction on the upper inner side of the treatment tank, and a second sand and gravel separation screen frame arranged along an inclined direction on the lower inner side of the treatment tank. An extension discharge pipe is connected to the lower ends of both the first and second sand and gravel separation screen frames, and a through groove is provided on one side of the treatment tank for the extension discharge pipe to move.
[0008] The inner side of the processing box is provided with a limiting guide groove at the position of the first sand and gravel separation screen frame and the second sand and gravel separation screen frame. The edges of the first sand and gravel separation screen frame and the second sand and gravel separation screen frame are slidably connected in the limiting guide groove by sliding blocks. A guide post is installed inside the limiting guide groove, and a reset spring is sleeved on both sides of the guide post.
[0009] A motor is fixedly installed on one side of the outer side of the processing box, and the transmission end of the motor is connected to a drive convex wheel through a drive shaft.
[0010] The bottom of the treatment box is connected to a water storage tank. The front edge of the water storage tank is connected to a clean water pipe, and the back edge is connected to a circulation pipe. The end of the circulation pipe is connected to a circulation pump, and the outlet of the circulation pipe is located at the top edge of the treatment box and a discharge strip box is installed thereon.
[0011] As a preferred technical solution of the self-circulating zero-discharge sewage system of this utility model, the inner side of the first sand and gravel separation screen frame is provided with a filter screen for intercepting stones, the inner side of the second sand and gravel separation screen frame is provided with a filter screen for intercepting mud and sand, and the ends of the first sand and gravel separation screen frame and the second sand and gravel separation screen frame are provided with discharge grooves that are connected to the inlet end of the extended discharge pipe.
[0012] As a preferred technical solution of the self-circulating zero-discharge sewage system of this utility model, the sliding block is provided with a guide hole inside, the guide post slides along the guide hole, and the reset springs on both sides of the guide post are connected to the two sides of the sliding block.
[0013] As a preferred technical solution of the self-circulating zero-discharge sewage system of this utility model, a control valve is installed at the end of the water purification pipe, and several drainage holes are equally spaced on the side of the discharge box.
[0014] As a preferred technical solution of the self-circulating zero-discharge sewage system of this utility model, a fine sand recovery box is installed on the bottom side of the treatment box, a mesh frame is nested on the top inner side of the fine sand recovery box, and a secondary filter mesh frame is inclinedly arranged in the middle of the inner side of the fine sand recovery box. The fine sand recovery box is detachably and slidably connected to the inner side of the fine sand recovery box through side sliders on both sides. A collection pipe connected to the inside of the water storage tank is provided on the inner side of the fine sand recovery box.
[0015] As a preferred technical solution of the self-circulating zero-discharge sewage system of this utility model, fine sand interception nets are provided on the inner bottom of the interlocking mesh frame and the inner side of the secondary filter mesh frame, and the aperture of the fine sand interception net on the inner side of the secondary filter mesh frame is smaller than the aperture of the fine sand interception net on the inner side of the interlocking mesh frame.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a self-circulating zero-discharge sewage system, which has the following beneficial effects:
[0018] 1. The first and second sand and gravel separation screens, the extended discharge pipe, and the through channel effectively separate stones and fine sand mixed in with wastewater. The extended discharge pipe facilitates the separate transport of the separated sand and gravel, ensuring the effective utilization of the sand and gravel. Simultaneously, the drive structure, consisting of a drive convex wheel and a motor, facilitates the reciprocating vibration of the first and second sand and gravel separation screens, ensuring their separation effect. The limiting guide groove, sliding block, guide column, and return spring facilitate the guidance and limitation of the vibration path of the separation screens. The return spring allows for more thorough reciprocating motion of the separation screens, ensuring the separation effect.
[0019] 2. The water storage tank and clean water pipe facilitate the effective collection of separated water and the convenient discharge of recycled water. The circulation pipe, circulation pump and discharge box facilitate the circulation and transportation of treated water. The discharge box ensures that the wastewater is more evenly distributed and transported into the inlet hopper, realizing water circulation treatment. It facilitates repeated filtration and separation of wastewater, ensuring the cleanliness of the subsequently discharged wastewater and further preventing secondary pollution of the water environment.
[0020] 3. The fine sand recovery box facilitates the effective collection of fine sand discharged from the extended discharge pipe at the end of the second sand and gravel separation screen frame. Combined with the interlocking mesh frame, it enables the drainage of wastewater accumulated in the fine sand. The secondary filter mesh frame further enhances the separation effect between wastewater and fine sand. The secondary filter mesh frame is detachably and slidably connected to the inside of the fine sand recovery box via a side slider. The interlocking mesh frame is inserted into the inside of the fine sand recovery box in a nested manner, which facilitates the effective disassembly and cleaning of the fine sand recovery box and the interlocking mesh frame, making it easier to use for separation in the future. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model.
[0022] Figure 2 This is a schematic diagram of the circulating pipeline connection structure of this utility model.
[0023] Figure 3 This is a schematic diagram of the internal structure of the processing box of this utility model.
[0024] Figure 4 This is a schematic diagram of the sliding block structure of this utility model.
[0025] Figure 5 This is a schematic diagram of the extended discharge pipe structure of this utility model.
[0026] Figure 6 This is a schematic diagram of the fine sand recycling bin structure of this utility model.
[0027] In the diagram: 1. Processing box; 2. Inlet hopper; 3. First sand and gravel separation screen frame; 4. Second sand and gravel separation screen frame; 5. Extended discharge pipe; 6. Limiting guide groove; 7. Sliding block; 8. Guide column; 9. Return spring; 10. Drive convex wheel; 11. Motor; 12. Through groove; 13. Water storage tank; 14. Clean water pipe; 15. Circulation pipe; 16. Circulation pump; 17. Discharge strip box; 18. Fine sand recovery box; 19. Fitting mesh frame; 20. Secondary filter mesh frame; 21. Side slider; 22. Collection pipe. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.
[0029] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.
[0030] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.
[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example
[0032] Please see Figure 1-6 This utility model provides the following technical solution: a self-circulating zero-discharge sewage system, including a treatment tank 1, an inlet hopper 2 installed at the top of the treatment tank 1, a first sand and gravel separation screen frame 3 arranged in an inclined direction on the upper inner side of the treatment tank 1, and a second sand and gravel separation screen frame 4 arranged in an inclined direction on the lower inner side of the treatment tank 1. Both the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4 are connected to an extension discharge pipe 5 at their lower ends. The inner side of the first sand and gravel separation screen frame 3 is provided with a filter screen for intercepting stones, and the inner side of the second sand and gravel separation screen frame 4 is provided with a filter screen for intercepting mud and sand. The ends of the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4 are provided with discharge grooves that are connected to the inlet end of the extension discharge pipe 5, so as to effectively separate stones and fine sand mixed in the sewage. Combined with the extension discharge pipe 5, it is convenient to transport the separated sand and gravel separately to ensure the effective utilization of the sand and gravel in the future. A through groove 12 is provided on one side of the treatment tank 1 for the extension discharge pipe 5 to move.
[0033] Limiting guide grooves 6 are provided on the inner side of the processing box 1 at the positions corresponding to the edges of the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4. The edges of the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4 are slidably connected to the limiting guide grooves 6 by sliding blocks 7. Guide columns 8 are installed inside the limiting guide grooves 6, and reset springs 9 are sleeved on both sides of the guide columns 8. Guide holes are provided inside the sliding blocks 7, and the guide columns 8 slide along the guide holes. The reset springs 9 on both sides of the guide columns 8 are connected to the two sides of the sliding blocks 7, which facilitates the guidance and limitation of the vibration position path of the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4. The reset springs 9 facilitate the more complete reciprocating movement of the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4, ensuring the separation effect.
[0034] A motor 11 is fixedly installed on one side of the outer side of the processing box 1, and the transmission end of the motor 11 is connected to a drive convex wheel 10 through a drive shaft.
[0035] The bottom of the treatment tank 1 is connected to a water storage tank 13. The front edge of the water storage tank 13 is connected to a clean water pipe 14, and the back edge is connected to a circulation pipe 15. The end of the circulation pipe 15 is connected to a circulation pump 16. The outlet of the circulation pipe 15 is located at the top edge of the treatment tank 1 and a discharge strip box 17 is installed. The end of the clean water pipe 14 is equipped with a control valve. Several drain holes are evenly spaced on the side of the discharge strip box 17 to facilitate the discharge of the water after circulation treatment. The discharge strip box 17 allows the sewage to be more evenly distributed and transported to the inlet hopper 2 for water circulation treatment.
[0036] A fine sand recovery box 18 is installed on the bottom side of the treatment box 1. A mesh frame 19 is nested inside the top of the fine sand recovery box 18, and a secondary filter frame 20 is inclinedly arranged in the middle of the inner side of the fine sand recovery box 18. Fine sand interception nets are provided on the bottom inner side of the mesh frame 19 and the inner side of the secondary filter frame 20. The aperture of the fine sand interception net inside the secondary filter frame 20 is smaller than the aperture of the fine sand interception net inside the mesh frame 19. The mesh frame 19 realizes the leaching of sewage accumulated in the fine sand, while the secondary filter frame 20 further enhances the separation effect between sewage and fine sand. The fine sand recovery box 18 is detachably and slidably connected to the inner side of the fine sand recovery box 18 by the side sliders 21 on both sides. A collection pipe 22 connected to the inside of the water storage tank 13 is provided on the inner side of the fine sand recovery box 18.
[0037] The working principle and usage process of this utility model are as follows: During the sewage treatment process, the sewage and its internal mixture are discharged into the treatment tank 1 through the inlet hopper 2. The first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4, which are set at different heights in the treatment tank 1, effectively separate the stones and fine sand mixed in the sewage. Combined with the extended discharge pipes 5 at the ends of the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4, the separated stones and fine sand are discharged separately so that the stones and fine sand can be collected separately and the sand and gravel can be easily utilized in the future.
[0038] During the process of separating sand and gravel in the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4, the motor 11 is started to drive the drive convex wheel 10 to rotate. The drive convex wheel 10 drives the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4 to reciprocate and vibrate. The limiting guide groove 6, the sliding block 7 and the guide column 8 guide and limit the vibration position path of the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4. The reset spring 9 drives the separation screen frame to perform more complete reciprocating activities to ensure the separation effect of the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4.
[0039] After sand and gravel separation, the wastewater flows through the first sand and gravel separation screen frame 3 and the second sand and gravel separation screen frame 4 into the water storage tank 13 at the bottom of the treatment tank 1. The circulation pump 16 is started so that the collected wastewater can be returned to the discharge box 17 through the circulation pipe 15, realizing the circulation of the treated water. The discharge box 17 allows the wastewater to be more evenly distributed and transported to the inlet hopper 2, realizing water circulation treatment, facilitating the repeated filtration and separation of wastewater, and ensuring the cleanliness of the wastewater discharged later.
[0040] The fine sand discharged through the extended discharge pipe 5 at the end of the second sand and gravel separation screen frame 4 flows directly into the fine sand recovery box 18, achieving effective collection of fine sand. The embedded mesh frame 19 on the inner side of the top of the fine sand recovery box 18 can drain the sewage accumulated in the fine sand. The secondary filter screen 20, which is inclined in the middle of the inner side of the fine sand recovery box 18, further enhances the separation effect of sewage and fine sand. The secondary filter screen 20 is detachably and slidably connected to the inside of the fine sand recovery box 18 through the side slider 21. The embedded mesh frame 19 is inserted into the inside of the fine sand recovery box 18 in a fitting manner, so as to facilitate effective disassembly and cleaning of the fine sand recovery box 18 and the embedded mesh frame 19, and facilitate more effective separation and use in the future.
[0041] The water collected in the fine sand recycling box 18 is collected into the water storage tank 13 through the collection pipe 22. This not only facilitates the secondary recycling of the water, but also allows the separated water to be discharged easily through the clean water pipe 14 on the side of the water storage tank 13 after the water treatment meets the treatment standards.
[0042] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A self-circulation sewage zero discharge system comprising a treatment box (1), characterized in that: The top end of the processing box (1) is provided with an inlet hopper (2), the upper side of the inner side of the processing box (1) is provided with a first sandstone separation screen frame (3) in an inclined direction, the lower side of the inner side of the processing box (1) is provided with a second sandstone separation screen frame (4) in an inclined direction, the low end positions of the first sandstone separation screen frame (3) and the second sandstone separation screen frame (4) are connected with an extended discharge pipe (5), and one side of the processing box (1) is provided with a through slot (12) for the movement of the extended discharge pipe (5). The inner side of the processing box (1) is provided with a limiting guide groove (6) corresponding to the edge end positions of the first sandstone separation screen frame (3) and the second sandstone separation screen frame (4), the edge ends of the first sandstone separation screen frame (3) and the second sandstone separation screen frame (4) are slidably connected in the limiting guide groove (6) through sliding blocks (7), and the limiting guide groove (6) is internally provided with a guide column (8), and the two sides of the guide column (8) are sleeved with return springs (9). The outer side of the processing box (1) is fixedly provided with a motor (11) at one side edge end, and the transmission end of the motor (11) is connected with a driving convex wheel disc (10) through a driving shaft. The bottom of the processing box (1) is connected with a water storage tank (13), the front side edge end of the water storage tank (13) is connected with a clean water pipe (14), the back side edge end is connected with a circulating pipeline (15), the end of the circulating pipeline (15) is connected with a circulating pump (16), and the water outlet end of the circulating pipeline (15) is provided with a discharge strip box (17) at the top edge end position of the processing box (1).
2. A self-circulating zero discharge sewage system according to claim 1, wherein: The inner side of the first sandstone separation screen frame (3) is provided with a filter screen for intercepting stone blocks, the inner side of the second sandstone separation screen frame (4) is provided with a filter screen for intercepting silt, and the end of the first sandstone separation screen frame (3) and the second sandstone separation screen frame (4) is provided with a discharge groove connected with the inlet end of the extended discharge pipe (5).
3. A self-circulating zero discharge sewage system according to claim 1, wherein: The inner side of the sliding block (7) is provided with a guide hole, the guide column (8) slides along the guide hole, and the return springs (9) on the two sides of the guide column (8) are connected to the two side edge ends of the sliding block (7).
4. The self-circulating zero discharge sewage system of claim 1, wherein: The end of the clean water pipe (14) is provided with a control valve, and the edge of the discharge strip box (17) is provided with a plurality of drainage holes at equal intervals.
5. The self-circulating zero discharge sewage system of claim 1, wherein: The bottom side of the processing box (1) is provided with a fine sand recovery tank (18), the top inner side of the fine sand recovery tank (18) is nested with a nested screen frame (19), and the inner side of the fine sand recovery tank (18) is provided with a secondary filter screen frame (20) in an inclined manner, the inner side of the fine sand recovery tank (18) is detachably and slidably connected to the inner side of the fine sand recovery tank (18) through the side sliding blocks (21) on the two sides thereof, and the inner side of the fine sand recovery tank (18) is provided with a collecting pipe (22) connected with the inside of the water storage tank (13).
6. A self-circulating zero discharge sewage system according to claim 5, wherein: The inner side of the nested screen frame (19) and the inner side of the secondary filter screen frame (20) are provided with fine sand interception screens, and the aperture of the fine sand interception screen in the inner side of the secondary filter screen frame (20) is smaller than the aperture of the fine sand interception screen in the inner side of the nested screen frame (19).