A water-sand separator staged filtration device
By using a combination of arc-shaped flow guide seat, aeration nozzle and flocculant in the water-sand separator, the water flow dynamics are optimized, sand particle settling is promoted, the problem of untimely sand settling in traditional water-sand separators is solved, and the separation efficiency and system stability are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN LVFUYU ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional water-sand separators have an arc-shaped guide plate at the inlet, which prevents sand from settling in a timely and effective manner. Sand then flows with the water into subsequent treatment stages, increasing the burden on the equipment and causing wear and tear, thus affecting the separation effect and system stability.
An arc-shaped guide seat is used to change the direction and speed of water flow. Combined with the aeration nozzle spraying air bubbles and the chemical liquid pipe interface introducing flocculant, it promotes the sedimentation of sand particles. The sedimented sand particles are automatically removed by a graded filter screen and an auger to ensure that the water quality meets the standards.
It improves the efficiency of water and sand separation, reduces the amount of sand particles entering subsequent treatment stages with the water flow, enhances system stability and water quality compliance rate, and reduces equipment wear and processing burden.
Smart Images

Figure CN224411482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water-sand separators, specifically a water-sand separator grading filtration device. Background Technology
[0002] A water-sand separator is a mechanical device specifically designed to effectively separate water from solid particles such as sand and silt contained within it. It is widely used in various fields such as water conservancy projects, river management, mining, and construction. Through specific separation principles and structural designs, it can efficiently separate water and sand, providing clean water sources or usable sand for subsequent processes.
[0003] In order to allow sand to settle to the bottom, a curved guide plate is usually installed at the inlet of the water separator to facilitate sand settling. However, this prevents a large amount of sand from settling in a timely and effective manner. Not only will it enter the subsequent treatment stages with the water flow, increasing the processing burden and wear of subsequent equipment, but it may also cause the separated water quality to fail to meet the expected standards, affecting the treatment effect and operational stability of the entire water-sand separation system. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a water-sand separator grading filtration device to solve the technical problems of water-sand separators.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a water-sand separator grading filtration device, comprising a filtration device, wherein the filtration device comprises a separation chamber, wherein an inlet and a first outlet are respectively opened at both ends of the separation chamber, the inlet is used to introduce the water-sand mixture to be separated, and the first outlet is used to discharge the water after preliminary separation;
[0006] The separation chamber is equipped with a separation room inside. An arc-shaped flow guide seat is installed inside the separation room near the water inlet. The arc-shaped flow guide seat can guide the water-sand mixture entering the separation chamber, change the direction and speed of the water flow, and make the sand particles settle more easily under the action of the water flow.
[0007] The separation chamber is located near the top of the arc-shaped guide seat and is equipped with an air pipe interface and a medicine pipe interface. The bottom of the arc-shaped guide seat has multiple mounting slots arranged in an equidistant array along its curve, and each mounting slot is equipped with an aeration nozzle.
[0008] By adopting the above technical solution, the arc-shaped guide seat changes the direction and speed of water flow, promotes the sedimentation of sand particles, optimizes water flow dynamics, reduces the movement of sand particles with the water flow, thereby improving the efficiency of water-sand separation, preventing sand from entering the subsequent treatment process, enhancing system stability, and ensuring that the initial water quality meets the standards.
[0009] Furthermore, one end of the air pipe interface is connected to the aeration pump to provide an air source for the aeration nozzles. The air pipe interface is connected to multiple aeration nozzles, which spray bubbles into the separation chamber. As the bubbles rise, they cause the water flow to tumble, further promoting the separation of sand and water.
[0010] By adopting the above technical solution, the aeration nozzle sprays air bubbles, which drive the water flow to roll, enhance the separation effect of sand particles and water, promote the buoyancy of air bubbles to drive sand particles to settle, reduce the residue of suspended sand particles, improve the thoroughness of water and sand separation, and ensure treatment efficiency.
[0011] Furthermore, the liquid medicine pipe interface is connected to an external flocculant tank and also connected to multiple aeration nozzles. The flocculant is evenly sprayed into the separation chamber through the liquid medicine pipe interface and aeration nozzles, causing the fine sand particles in the water to flocculate into larger particles, accelerating sedimentation, thereby improving the efficiency and effect of water-sand separation.
[0012] By adopting the above technical solution, the flocculant is sprayed in through the liquid pipe interface, causing fine sand particles to flocculate into large particles, accelerating the sedimentation process, improving the integrity of water-sand separation and water quality, reducing the need for subsequent treatment, and optimizing the overall effect.
[0013] Furthermore, a turbulence column is provided in the middle of the separation chamber, and the turbulence column is arranged in a circular structure.
[0014] By adopting the above technical solution, the circular turbulence column interferes with the water flow pattern, disrupts laminar flow and generates vortices, assists in sand sedimentation, optimizes the flow characteristics of the separation chamber, and improves the uniformity of water and sand separation.
[0015] Furthermore, an arc-shaped tiered filter screen is provided at the rear of the separation chamber, and the tiered filter screen is used for further purification of water quality.
[0016] By adopting the above technical solution, the arc-shaped graded filter screen performs secondary filtration to further purify the water quality, remove residual sand and impurities, ensure that the final water quality meets the standards, and enhance the integrity of water and sand separation.
[0017] Furthermore, an auger is provided at the bottom of the separation chamber, a motor is provided at one end of the auger, a spiral blade is provided inside the auger, and one end of the spiral blade is fixedly connected to the output end of the motor.
[0018] By adopting the above technical solution, the motor-driven spiral blade pushes the deposited sand particles, automatically removes the sand particles at the bottom, reduces the need for manual cleaning, and keeps the separation chamber running smoothly.
[0019] Furthermore, the bottom of the auger is provided with a sand outlet, which is located directly above the sand storage tank.
[0020] By adopting the above technical solution, the sand outlet is located directly above the sand storage tank, which facilitates the concentrated discharge of sand particles, reduces residual sand particles, optimizes sand discharge efficiency, and ensures the cleanliness of the bottom of the device.
[0021] Furthermore, a second water outlet is provided at the lower back of the separation chamber, and the second water outlet is used to discharge the remaining wastewater and undischarged sand.
[0022] By adopting the above technical solution, the second outlet discharges the remaining wastewater and unseparated sand particles, preventing system blockage, ensuring safe operation, handling abnormal operating conditions, and improving overall stability.
[0023] In summary, the present invention has the following main advantages:
[0024] This invention utilizes a structure incorporating an arc-shaped guide seat, aeration nozzles, a tiered filter, and an auger. The arc-shaped guide seat directs the flow of the water-sand mixture entering the separation chamber, altering the direction and speed of the water flow to facilitate sedimentation of sand particles. The aeration nozzles, connected to an aeration pump via an air pipe interface, spray air bubbles into the separation chamber. These rising bubbles cause the water to churn, further promoting sand-water separation. Simultaneously, a chemical solution interface connects to an external flocculant tank, allowing flocculant to be evenly sprayed into the separation chamber through the aeration nozzles. This causes fine sand particles in the water to flocculate into larger particles, accelerating sedimentation. The tiered filter further purifies the separated water. The auger, driven by a motor, discharges the settled sand from the sand outlet. This design solves the problem of traditional water-sand separators where the arc-shaped guide plate at the inlet prevents a large amount of sand from settling effectively and promptly. This sand then flows into subsequent treatment stages, increasing the burden and wear on subsequent equipment and potentially causing the separated water to fail to meet expected standards, thus affecting the overall treatment effect and operational stability of the water-sand separation system. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0026] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;
[0027] Figure 3 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;
[0028] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.
[0029] In the diagram: 1. Filter device; 101. Mounting frame; 102. Separation chamber; 103. Screw conveyor; 104. Motor; 105. Spiral blade; 106. Separation chamber; 107. Inlet; 108. First outlet; 109. Sand outlet; 110. Second outlet; 111. Arc-shaped guide seat; 112. Air pipe interface; 113. Chemical solution pipe interface; 114. Mounting groove; 115. Aeration nozzle; 116. Grading filter screen; 117. Turbulence column. Detailed Implementation
[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0031] Example 1:
[0032] A water-sand separator grading filtration device, such as Figure 1-4 As shown, the filter includes a filter device 1, which includes a separation chamber 102. The separation chamber 102 has an inlet 107 and a first outlet 108 at its two ends. The inlet 107 is used to introduce the water-sand mixture to be separated, and the first outlet 108 is used to discharge the water after preliminary separation.
[0033] The separation chamber 102 is equipped with a separation chamber 106. Inside the separation chamber 106, near the inlet 107, there is an arc-shaped flow guide seat 111. The arc-shaped flow guide seat 111 can guide the water-sand mixture entering the separation chamber 102, change the direction and speed of the water flow, and make the sand particles settle more easily under the action of the water flow.
[0034] Near the top of the arc-shaped guide seat 111, the separation chamber 102 is equipped with an air pipe interface 112 and a liquid medicine pipe interface 113. The bottom of the arc-shaped guide seat 111 has multiple installation slots 114 arranged equidistantly along its curve. Each installation slot 114 is equipped with an aeration nozzle 115. By setting the arc-shaped guide seat 111 in the separation chamber 106 of the separation chamber 102, the water-sand mixture is guided, the inlet water direction and flow rate are changed, the sedimentation of sand particles in the initial stage is promoted, the hydrodynamics is optimized to reduce the water flow force, and the sand particles are prevented from being carried into the subsequent area, thereby improving the separation efficiency. At the same time, this design reduces the burden on subsequent equipment, such as preventing filter screen clogging or component wear, improving the overall operational stability and water quality consistency, and ensuring that the mixture introduced by the inlet 107 is effectively treated so that the water discharged from the first outlet 108 meets the standards.
[0035] See Figure 1 , Figure 4One end of the air pipe interface 112 is connected to the aeration pump to provide air to the aeration nozzles 115. The air pipe interface 112 is connected to multiple aeration nozzles 115. The aeration nozzles 115 spray bubbles into the separation chamber 102. As the bubbles rise, they cause the water flow to tumble, further promoting the separation of sand particles from water. The air pipe interface 112 is connected to an external aeration pump to provide air to multiple aeration nozzles 115. The sprayed bubbles generate water flow tumbling and disturbance during the rising process, increasing the buoyancy difference and agitation of the water-sand mixture, promoting the sand particles to detach from the water flow and sink. This mechanism enhances the separation effect, reduces the risk of fine sand particles being suspended, increases the settling rate, and ensures that sand particles are effectively captured inside the separation chamber 106, thereby preventing sand particles from entering subsequent equipment such as the grading filter screen 116, reducing wear, and maintaining the system's efficient and stable operation.
[0036] Example 2:
[0037] See Figure 1 , Figure 2 The chemical solution pipe interface 113 is connected to an external flocculant tank and also to multiple aeration nozzles 115. The flocculant is evenly sprayed into the separation chamber 102 through the chemical solution pipe interface 113 and the aeration nozzles 115, causing fine sand particles in the water to flocculate into larger particles, accelerating sedimentation, thereby improving the efficiency and effect of water-sand separation. The chemical solution pipe interface 113 is connected to an external flocculant tank, and the flocculant is evenly sprayed into the aeration nozzles 115, causing fine sand particles in the water to agglomerate into larger, easier-to-settle particles, improving sedimentation speed and thoroughness. This not only enhances the capture and sedimentation efficiency of sand particles, but also reduces the impact of suspended sand particles on subsequent processes such as the grading filter 116, thereby improving the overall efficiency and effect of water-sand separation, ensuring the continuity of water purification, reducing the overall treatment burden, and enhancing the stability and reliability of the device operation.
[0038] See Figure 1 , Figure 2 A turbulence column 117 is set in the middle of the separation chamber 106. The turbulence column 117 is circular in structure. The circular turbulence column 117 in the middle of the separation chamber 106 changes the water flow path, generates vortices and turbulence, breaks the steady flow, and promotes the sedimentation of sand particles under the disturbance of water flow. This design optimizes the flow characteristics of the separation chamber, avoids the accumulation or scattering of sand particles, enhances the sedimentation efficiency, thereby improving the overall uniformity and thoroughness of water and sand separation, preventing dead zones in water flow from causing insufficient separation, ensuring more stable and efficient system operation, and reducing water quality fluctuations at the first outlet 108.
[0039] See Figure 1An arc-shaped graded filter screen 116 is installed at the rear of the separation chamber 106. The graded filter screen 116 is used to further purify the water. The arc-shaped graded filter screen 116 located at the rear of the separation chamber 106 performs secondary filtration on the pre-treated water flow, physically intercepting residual sand particles and fine impurities, and further improving the water quality. This not only ensures that the water discharged from the first outlet 108 is cleaner and reduces the impurity burden of subsequent treatment stages, but also enhances the overall integrity and reliability of water and sand separation, prevents unsettled sand particles from affecting system efficiency, and optimizes the stability and long-term performance of the device.
[0040] See Figure 1 , Figure 2 A screw conveyor 103 is installed at the bottom of the separation chamber 102. A motor 104 is installed at one end of the screw conveyor 103. A spiral blade 105 is installed inside the screw conveyor 103, and one end of the spiral blade 105 is fixedly connected to the output end of the motor 104. Driven by the motor 104, the screw conveyor 103 and the spiral blade 105 installed at the bottom of the separation chamber 102 continuously transport the settled sand particles, preventing the sand particles from accumulating and clogging at the bottom. This design automates the cleaning process, reduces maintenance intervention, improves system operating efficiency, ensures the spatial stability of the separation chamber 106, and avoids excessive sand volume from affecting the hydrodynamics and water-sand separation effect, thereby maintaining the stable operation and continuous processing of the device.
[0041] See Figure 1 , Figure 4 The bottom of the auger 103 is provided with a sand outlet 109, which is located directly above the sand storage tank. The sand outlet 109 at the bottom of the auger 103 is located directly above the sand storage tank, so that the sand particles conveyed by the spiral blade 105 can be discharged directly and efficiently, avoiding residual accumulation. This improves the smoothness and thoroughness of the sand discharge process, reduces the residue of sand particles at the bottom of the separation chamber 102, thereby reducing maintenance requirements, preventing sand particles from flowing back and affecting water and sand separation, and maintaining the stability and long-term reliability of system operation.
[0042] See Figure 1 A second outlet 110 is provided at the lower back of the separation chamber 102. The second outlet 110 is used to discharge residual wastewater and undischarged sand. The second outlet 110 located at the lower back of the separation chamber 102 is used to discharge residual wastewater and sand particles that have not been completely settled, so as to avoid system blockage or overload. This design is designed to cope with abnormal operating conditions, such as water flow fluctuations or sudden increases in sand volume, and serves as a safety channel to prevent water and sand separation failure from affecting the main outlet, thereby improving the safety and adaptability of the device operation and ensuring the stability and reliability of the overall treatment process.
[0043] The implementation principle of this embodiment is as follows: First, the water-sand mixture is introduced into the separation chamber 106 of the separation chamber 102 through the inlet 107. The mixture is guided by the arc-shaped guide seat 111 to change the direction and speed of the water flow, so that the sand particles begin to settle under the action of the water flow. However, the change in the water flow speed may affect the timeliness of the settling.
[0044] To address the issue of insufficient settling, the aeration nozzle 115 is connected to an external aeration pump via the air pipe interface 112 to spray air bubbles. As the air bubbles rise, they cause the water flow to tumble, increasing the water flow disturbance and improving the sand separation efficiency.
[0045] Meanwhile, flocculant is introduced from the external flocculant tank through the chemical pipe interface 113 and evenly sprayed into the separation chamber 102 through the aeration nozzle 115, so that the fine sand particles are flocculated into larger particles, accelerating the sedimentation process and preventing sand particles from entering the subsequent stages with the water flow; when the water flows through the separation chamber 106, the turbulence column 117 interferes with the flow pattern and helps to promote the sedimentation of sand particles.
[0046] Subsequently, the water flows to the rear of the separation chamber 106 and undergoes secondary filtration through the arc-shaped graded filter screen 116 to further purify the water quality; the water after preliminary separation is discharged from the first outlet 108; the settled sand particles are deposited at the bottom of the separation chamber 102 and are pushed to the sand outlet 109 by the spiral blade rod 105 of the auger 103 under the drive of the motor 104.
[0047] Residual wastewater and incompletely separated sand are discharged from the second outlet 110 to ensure the stability of system operation.
[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A water-silt separator staged filtration device, characterized by: The filter includes a filter device (1), which includes a separation chamber (102). The separation chamber (102) has an inlet (107) and a first outlet (108) at both ends. The inlet (107) is used to introduce the water-sand mixture to be separated, and the first outlet (108) is used to discharge the water after preliminary separation. The separation chamber (102) is provided with a separation chamber (106) inside. An arc-shaped flow guide seat (111) is provided inside the separation chamber (106) near the water inlet (107). The arc-shaped flow guide seat (111) can guide the water-sand mixture entering the separation chamber (102), change the direction and speed of the water flow, and make the sand particles settle more easily under the action of the water flow. The separation chamber (102) is located near the top of the arc-shaped guide seat (111) and is provided with an air pipe interface (112) and a medicine pipe interface (113). The bottom of the arc-shaped guide seat (111) is provided with multiple installation slots (114) arranged equidistantly along its curve. Each installation slot (114) is equipped with an aeration nozzle (115).
2. The water-sand separator staged filtration apparatus of claim 1, wherein: One end of the air pipe interface (112) is connected to the aeration pump to provide an air source for the aeration nozzle (115). The air pipe interface (112) is connected to multiple aeration nozzles (115). The aeration nozzles (115) spray bubbles into the separation chamber (102). As the bubbles rise, they cause the water flow to tumble, further promoting the separation of sand and water.
3. The water-sand separator grading filtration device according to claim 1, characterized in that: The liquid medicine pipe interface (113) is connected to the external flocculant tank and is also connected to multiple aeration nozzles (115). The flocculant is evenly sprayed into the separation chamber (102) through the liquid medicine pipe interface (113) and the aeration nozzles (115), causing the fine sand particles in the water to flocculate into larger particles, accelerating sedimentation, thereby improving the efficiency and effect of water and sand separation.
4. The water-sand separator grading filtration device according to claim 1, characterized in that: A turbulence column (117) is provided in the middle of the separation chamber (106), and the turbulence column (117) is arranged in a circular structure.
5. The water-sand separator grading filtration device according to claim 1, characterized in that: An arc-shaped graded filter screen (116) is provided at the rear of the separation chamber (106), and the graded filter screen (116) is used for further purification of water quality.
6. The water-sand separator grading filtration device according to claim 1, characterized in that: The bottom of the separation chamber (102) is provided with an auger (103), one end of which is provided with a motor (104). The auger (103) is provided with a spiral blade (105), and one end of the spiral blade (105) is fixedly connected to the output end of the motor (104).
7. The water-sand separator grading filtration device according to claim 6, characterized in that: The bottom of the screw conveyor (103) is provided with a sand outlet (109), and the sand outlet (109) is located directly above the sand storage tank.
8. The water-sand separator grading filtration device according to claim 1, characterized in that: The separation chamber (102) is provided with a second outlet (110) at the lower back, and the second outlet (110) is used to discharge the remaining wastewater and undischarged sand.