Sewage treatment solid-liquid separation device
By using an inclined L-shaped filter screen and a crushing roller structure, the problem of debris clogging in sewage treatment devices is solved, achieving efficient solid-liquid separation and cleaning functions, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU FANGZHOU ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-29
AI Technical Summary
Existing solid-liquid separation devices for wastewater treatment are prone to clogging of filter plates by debris, affecting the filtration and separation effect of wastewater.
The filter uses an inverted L-shaped filter screen with an inclined setting, combined with a crushing roller and a cleaning brush plate structure to achieve solid-liquid separation. The cleaning brush plate is driven by a drive chain and a synchronous transmission belt to remove blockages and ensure filtration effect.
It effectively avoids clogging by debris, improves the separation and filtration efficiency of sewage, extends the service life of the device, and reduces manufacturing costs.
Smart Images

Figure CN224292633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater treatment solid-liquid separation device. Background Technology
[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, healthcare, and catering. In wastewater treatment, because wastewater contains a large amount of impurities, solid-liquid separation is generally required to prevent environmental pollution and ensure that the wastewater meets discharge standards before being released.
[0003] Currently, existing solid-liquid separation devices for wastewater treatment are prone to clogging of the filter plates by debris during use, which affects the filtration and separation effect of wastewater. Therefore, we propose a solid-liquid separation device for wastewater treatment. Utility Model Content
[0004] The purpose of this invention is to provide a solid-liquid separation device for sewage treatment, which has the advantage of good filtration and separation effect. It solves the problem that existing solid-liquid separation devices for sewage treatment are prone to clogging of the filter plate by debris during use, which affects the sewage filtration and separation effect.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment solid-liquid separation device, including a shell, and further comprising:
[0006] A liquid inlet hopper is fixedly installed on the top of the housing. A guide plate is fixedly connected to the upper end of the inner cavity of the liquid inlet hopper. A slag discharge port is provided at the right end of the housing. A liquid discharge pipe is connected to the bottom of the housing.
[0007] An inverted L-shaped filter screen is installed in the middle of the inner cavity of the housing and is set at an angle.
[0008] Preferably, support legs are fixedly connected to both the left and right ends of the bottom of the housing, and a support base plate is fixedly installed at the bottom of the support legs.
[0009] Preferably, the lower end of the inner cavity of the liquid inlet is movably connected to a first crushing roller and a second crushing roller that extend to the rear of the liquid inlet, and the rear ends of the outer surfaces of the first crushing roller and the second crushing roller are fixedly installed with meshing synchronous gears.
[0010] Preferably, a drive motor is fixedly installed at the lower end of the front side of the liquid inlet hopper, and the output end of the drive motor is fixedly connected to the front side of the first crushing roller.
[0011] Preferably, a drive sprocket is fixedly mounted on the rear side of the second crushing roller.
[0012] Preferably, the left and right ends of the inner cavity of the housing are movably connected to drive rollers that extend to the rear of the housing, and a driven sprocket is fixedly installed on the rear side of the drive roller. A drive chain is sleeved on the outer side of the driven sprocket and the drive sprocket.
[0013] Preferably, a plurality of guide rollers are provided at the upper end of the inner cavity of the housing. The drive roller and guide roller located in the inner cavity of the housing are fitted with synchronous transmission belts at both the front and rear ends of their outer surfaces. A plurality of cleaning brush plates are fixedly installed on the outer surface of the synchronous transmission belts, and the soft brush of the cleaning brush plate is in contact with the top of the inverted L-shaped filter screen.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model uses an inverted L-shaped filter screen that is set at an angle. When subjected to the impact of sewage, the solid particles filtered out can be moved away from the main filter surface of the inverted L-shaped filter screen under the influence of gravity, thus ensuring the normal separation and filtration of sewage.
[0016] 2. This utility model is easy to use, has a simple structure, low manufacturing cost, and is conducive to market promotion. Attached Figure Description
[0017] Figure 1 This is a first-view structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention from a second perspective;
[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the mating structure of the drive chain and drive sprocket of this utility model.
[0021] In the diagram: 1. Shell; 101. Support leg; 102. Slag discharge port; 103. Liquid discharge pipe; 2. Liquid inlet hopper; 201. Drive motor; 202. Guide plate; 203. Drive chain; 204. Second crushing roller; 205. First crushing roller; 206. Synchronous gear; 207. Drive sprocket; 3. Inverted L-shaped filter screen; 4. Drive roller; 401. Guide roller; 402. Driven sprocket; 403. Cleaning brush plate; 404. Synchronous transmission belt. Detailed Implementation
[0022] 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.
[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] The components of this application, including the housing 1, support leg 101, slag discharge port 102, liquid discharge pipe 103, liquid inlet hopper 2, drive motor 201, guide plate 202, drive chain 203, second crushing roller 204, first crushing roller 205, synchronous gear 206, drive sprocket 207, inverted L-shaped filter screen 3, drive roller 4, guide roller 401, driven sprocket 402, cleaning brush plate 403, and synchronous transmission belt 404, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0026] Example 1
[0027] Please see Figures 1-4 As shown, this utility model provides a technical solution: a wastewater treatment solid-liquid separation device, including a shell 1, and further comprising:
[0028] A liquid inlet 2 is fixedly installed on the top of the housing 1. A guide plate 202 is fixedly connected to the upper end of the inner cavity of the liquid inlet 2. A slag discharge port 102 is provided at the right end of the housing 1. A liquid discharge pipe 103 is connected to the bottom of the housing 1.
[0029] An inverted L-shaped filter screen 3 is installed in the middle of the inner cavity of the housing 1 and is inclined. Support legs 101 are fixedly connected to both the left and right ends of the bottom of the housing 1, and a support base plate is fixedly installed at the bottom of the support legs 101.
[0030] This technical solution: By setting up the inlet hopper 2 and with the assistance of the guide plate 202, the sewage can be guided. After the sewage enters the inner cavity of the shell 1 and passes through the inclined inverted L-shaped filter screen 3, the separation efficiency of solids and liquids can be achieved. Because the inverted L-shaped filter screen 3 is inclined, when it is impacted by sewage, the solid particles filtered out can move away from the main filter surface of the inverted L-shaped filter screen 3 under the influence of gravity, ensuring the normal separation and filtration of sewage. The filtered sewage can be discharged outward through the drain pipe 103, while the filtered solid particles can be discharged outward through the slag discharge port 102.
[0031] Example 2
[0032] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a first crushing roller 205 and a second crushing roller 204 are movably connected to the lower end of the inner cavity of the liquid inlet 2, extending to the rear of the liquid inlet 2. The rear ends of the outer surfaces of the first crushing roller 205 and the second crushing roller 204 are fixedly installed with meshing synchronous gears 206. A drive motor 201 is fixedly installed at the lower end of the front side of the liquid inlet 2, and the output end of the drive motor 201 is fixedly connected to the front side of the first crushing roller 205.
[0033] This technical solution: When the drive motor 201 drives the first crushing roller 205 to rotate, and with the assistance of the meshing synchronous gear 206, the first crushing roller 205 and the second crushing roller 204 rotate in opposite directions. With the cooperation of the guide plate 202, the first crushing roller 205 and the second crushing roller 204 rotating in opposite directions can reduce the impact force of the water falling, thereby improving the service life of the inverted L-shaped filter screen 3. At the same time, the first crushing roller 205 and the second crushing roller 204 rotating in opposite directions can crush larger solid particles in the water, increasing the probability of solid particles passing through the inverted L-shaped filter screen 3 and avoiding the situation where the filtered particles accumulate at the top or bottom of the inverted L-shaped filter screen 3, which is convenient for people to use.
[0034] Example 3
[0035] Based on Embodiment 1, this utility model is as follows: Figures 1-4As shown, a drive sprocket 207 is fixedly installed on the rear side of the second crushing roller 204. Drive rollers 4 extending to the rear of the housing 1 are movably connected to both the left and right ends of the inner cavity of the housing 1. A driven sprocket 402 is fixedly installed on the rear side of the drive roller 4. A drive chain 203 is sleeved on the outer side of the driven sprocket 402 and the drive sprocket 207. A number of guide rollers 401 are provided at the upper end of the inner cavity of the housing 1. Synchronous transmission belts 404 are sleeved on the front and rear ends of the outer surfaces of the drive rollers 4 and guide rollers 401 located in the inner cavity of the housing 1. A number of cleaning brushes 403 are fixedly installed on the outer surface of the synchronous transmission belts 404, and the soft brush of the cleaning brush 403 is in contact with the top of the inverted L-shaped filter screen 3.
[0036] This technical solution, through the setting of the drive sprocket 207, and with the assistance of the driven sprocket 402 and the drive chain 203, can drive the two drive rollers 4 to rotate simultaneously when the second crushing roller 204 rotates. With the assistance of multiple guide rollers 401, it can drive the synchronous transmission belt 404 and multiple cleaning brushes 403 to rotate. The counterclockwise rotating cleaning brushes 403 can clean the filter surface of the inverted L-shaped filter screen 3 and send the filtered material to the slag discharge port 102 for discharge, thereby ensuring the separation and filtration effect of this device and facilitating its use.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A wastewater treatment solid-liquid separation device, comprising a shell (1), characterized in that, Also includes: A liquid inlet hopper (2) is fixedly installed on the top of the housing (1). A guide plate (202) is fixedly connected to the upper end of the inner cavity of the liquid inlet hopper (2). A slag discharge port (102) is provided at the right end of the housing (1). A liquid discharge pipe (103) is connected to the bottom of the housing (1). An inverted L-shaped filter screen (3) is installed in the middle of the inner cavity of the housing (1) and is inclined.
2. The wastewater treatment solid-liquid separation device according to claim 1, characterized in that: The bottom of the housing (1) is fixedly connected to the left and right ends of the bottom, and a support base plate is fixedly installed at the bottom of the support leg (101).
3. The wastewater treatment solid-liquid separation device according to claim 1, characterized in that: The lower end of the inner cavity of the liquid inlet hopper (2) is movably connected to a first crushing roller (205) and a second crushing roller (204) that extend to the rear of the liquid inlet hopper (2). The rear ends of the outer surfaces of the first crushing roller (205) and the second crushing roller (204) are fixedly installed with mutually meshing synchronous gears (206).
4. The wastewater treatment solid-liquid separation device according to claim 3, characterized in that: A drive motor (201) is fixedly installed at the lower end of the front side of the liquid inlet hopper (2), and the output end of the drive motor (201) is fixedly connected to the front side of the first crushing roller (205).
5. The wastewater treatment solid-liquid separation device according to claim 3, characterized in that: A drive sprocket (207) is fixedly installed on the rear side of the second crushing roller (204).
6. The wastewater treatment solid-liquid separation device according to claim 1, characterized in that: Both ends of the inner cavity of the housing (1) are movably connected to drive rollers (4) that extend to the rear of the housing (1). A driven sprocket (402) is fixedly installed on the rear side of the drive roller (4). A drive chain (203) is sleeved on the outer side of the driven sprocket (402) and the drive sprocket (207).
7. The wastewater treatment solid-liquid separation device according to claim 1, characterized in that: The upper end of the inner cavity of the housing (1) is provided with a number of guide rollers (401). The drive roller (4) and guide roller (401) located in the inner cavity of the housing (1) are fitted with synchronous transmission belts (404) at both ends of their outer surfaces. A number of cleaning brush plates (403) are fixedly installed on the outer surface of the synchronous transmission belt (404), and the soft brush of the cleaning brush plate (403) is in contact with the top of the inverted L-shaped filter screen plate (3).