Wastewater recycling mechanism of microstrainer
By incorporating a stainless steel filter screen and cleaning brush into the microfiltration machine's wastewater recovery mechanism, the problem of wastewater waste caused by backwashing in traditional microfiltration machines is solved. This enables secondary filtration and recovery of wastewater, significantly improving the efficiency of water resource utilization.
Patent Information
- Application Number
- CN202520367489.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The backwashing process of traditional microfiltration machines generates a large amount of wastewater. With the increase in aquaculture density, water resources are wasted in a serious manner, and existing technologies have not been able to effectively solve this problem.
Design a wastewater recycling mechanism for a microfiltration machine. It uses a stainless steel filter screen and a cleaning brush. Impurities are introduced into the collection tank through an inclined collection tank and a high-pressure nozzle. Some wastewater is filtered and recycled. The cleaning brush is driven by a motor to rotate and clean the filter screen, separating impurities from excess residue.
This achieved a wastewater rate reduction of approximately 10%, significantly improving water resource utilization efficiency, preventing pollution backflow, and enhancing water resource utilization efficiency.
Smart Images

Figure CN223788131U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of microfiltration technology, and specifically relates to a wastewater recovery mechanism for microfiltration machines. Background Technology
[0002] In traditional factory farming, microfiltration machines are usually used to filter impurities in the water to purify the water. However, the subsequent backwashing process flushes all the feces and sludge into the collection tank and discharges them. This method leads to the generation of a large amount of wastewater. Furthermore, as the stocking density increases, the frequency of backwashing also increases, which further exacerbates the problem of water waste. Utility Model Content
[0003] In view of this, the purpose of this utility model is to address the shortcomings of the existing technology by providing a microfiltration wastewater recovery mechanism for secondary filtration and recovery of wastewater generated by the microfiltration machine.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A wastewater recycling mechanism for a microfiltration machine includes a sludge collection tank and a filter screen. The bottom of the sludge collection tank is inclined at an angle to the horizontal plane. A drain outlet is provided at the lowest end of the bottom of the sludge collection tank. A filter outlet is provided at the bottom of the sludge collection tank, and the filter screen is placed inside the filter outlet.
[0006] To better realize this utility model, the above structure is further optimized, and the filter screen is made of stainless steel.
[0007] To better realize this utility model, the above structure is further optimized by including a cleaning brush and a motor. The motor can drive the cleaning brush to rotate and make the cleaning brush cyclically clean the upper surface of the filter screen.
[0008] To better realize this utility model, the above structure is further optimized. The cleaning brush includes a rotating shaft and multiple brush heads. The brush heads are spaced apart on the rotating shaft along the circumferential direction, and the motor drives the rotating shaft to rotate.
[0009] To better realize this utility model, the above structure is further optimized by setting three sets of brush heads, which are evenly spaced on the rotating shaft.
[0010] To better realize this utility model, the above structure is further optimized, and the brush head is made of silicone material.
[0011] To better realize this utility model, the above structure is further optimized, and the motor is a waterproof motor.
[0012] Compared with the prior art, this utility model has the following advantages:
[0013] The microfiltration wastewater recovery mechanism provided by this utility model optimizes water resource management during the backwashing process. During backwashing, high-pressure nozzles flush the residue on the microfiltration filter screen to the collection tank. Some of the wastewater is filtered through the filter screen at the bottom of the collection tank and then recycled back to the fish pond for reuse. At the same time, the water flow washes away excess residue, preventing it from flowing back into the fish pond and causing pollution, thus achieving water conservation. This design can reduce the wastewater rate by about 10%, significantly improving the efficiency of water resource utilization. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the wastewater recovery mechanism of the microfiltration machine of this utility model.
[0016] In the picture:
[0017] 1-Sewage collection tank, 101-Drain outlet, 2-Filter screen, 3-Cleaning brush, 4-Motor. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0019] In the description of this utility model, it should be noted that, 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. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 according to the specific circumstances.
[0021] like Figure 1 As shown, the microfiltration wastewater recycling mechanism provided in this application includes a collection tank 1 and a filter screen 2, which is made of stainless steel. The bottom of the collection tank 1 is inclined at an angle to the horizontal plane, and a drain outlet 101 is located at the lowest end of the bottom of the collection tank 1, causing the wastewater entering the collection tank 1 to flow downwards, ultimately discharging from the drain outlet 101 at the lowest position. During the wastewater flow, because the bottom of the collection tank 1 has a filter outlet, and the filter screen 2 is placed inside the filter outlet, some wastewater is filtered through the filter screen 2 and recycled back to the fishpond for reuse. The filter screen 2 can be designed to be placed closer to the drain outlet 101 to increase the amount of wastewater filtered and improve recycling efficiency. Simultaneously, the water flow washes away excess residue, preventing it from flowing back into the fishpond and causing pollution, thus achieving water conservation. This design can reduce the wastewater rate by approximately 10%, significantly improving the efficiency of water resource utilization.
[0022] Although the water flow can wash away most of the impurities on the surface of the filter screen 2, some impurities inevitably stick to or get stuck in the mesh of the filter screen 2, which will weaken the filtration function after long-term use. To address this problem and to better realize this utility model, the above structure is further optimized. This device also includes a cleaning brush 3 and a motor 4. The motor 4 can drive the cleaning brush 3 to rotate, and make the cleaning brush 3 cyclically clean the upper surface of the filter screen 2. Through the continuous movement of the cleaning brush 3, the impurities on the filter screen 2 are removed, restoring its filtration function.
[0023] In this embodiment, the cleaning brush 3 includes a rotating shaft and multiple brush heads, which are spaced apart on the rotating shaft along the circumferential direction. The motor 4 drives the rotating shaft to rotate. Figure 1 As shown, three sets of brush heads are evenly spaced on the rotating shaft, operating similarly to a rotating waterwheel. During rotation, the three sets of brush heads circulate and physically clean the filter screen 2. The brush heads are made of silicone, which is corrosion-resistant and not easily deformed, ensuring long-term stable operation and efficient cleaning. Motor 4 is a waterproof motor, improving its anti-interference performance.
[0024] Working principle:
[0025] Each time the microfiltration machine discharges wastewater, the control motor 4 starts, and the wastewater enters the collection tank 1 from above. The wastewater forms a water flow from the height to the discharge port 101. During this process, the wastewater flows on the filter screen 2. Some of the wastewater is filtered through the filter screen 2 and recycled back to the fish pond for reuse. At the same time, the cleaning brush 3 rotates to clean the impurities on the filter screen 2. The filtered impurities are mixed with the wastewater and discharged from the discharge port 101.
[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A microfilter wastewater recovery mechanism, characterized by: Including the sump (1) and filter screen (2), the sump (1) bottom and horizontal plane between the setting of the inclined angle, the sump (1) bottom height lowest end of the sewage outlet (101) is provided with, the sump (1) bottom is provided with filter port, the filter screen (2) is set in the filter port.
2. A microfilter wastewater recovery mechanism according to claim 1, wherein: The filter screen (2) is stainless steel material.
3. A microfilter wastewater recovery mechanism according to claim 2, wherein: Also package cleaning brush (3) and motor (4), the motor (4) can drive the cleaning brush (3) rotates, and makes the cleaning brush (3) circulates the upper surface of the filter screen (2) and sweeps.
4. A microfilter waste water recovery mechanism according to claim 3, wherein: The cleaning brush (3) includes a plurality of brush heads, the brush head is circumferentially spaced apart on the shaft, and the motor (4) drives the shaft to rotate.
5. A microfilter waste water recovery mechanism according to claim 4, wherein: The brush head is provided with three groups, and is uniformly spaced apart on the shaft.
6. A microfilter wastewater recovery mechanism according to claim 5, wherein: The brush head is silica gel material.
7. A microfilter wastewater recovery mechanism according to claim 3, wherein: The motor (4) is a waterproof motor.