Precipitation separation device

Abstract

The utility model discloses a precipitation separation device which comprises a precipitation tank, two sludge discharge pipes are fixedly communicated with the bottom of the precipitation tank, two fixing plates are fixedly connected in the precipitation tank, guide rods are fixedly connected to the tops of the two fixing plates, round sleeves are slidably sleeved on the outer walls of the two guide rods, and the round sleeves are fixedly connected with the two sludge discharge pipes. The outer walls of the two round sleeves are fixedly sleeved with connecting plates, threaded holes are formed in the outer walls of the two connecting plates, and the inner walls of the threaded holes are in threaded connection with external threaded pipes. The floating plate structure is automatically adjusted along with lifting of the liquid level, it is ensured that suspended matter suction is always close to the water surface, and treatment efficiency reduction or impurity escape caused by liquid level fluctuation is avoided; suspended matters are actively gathered and enter a cleaning area through negative pressure suction and directional water flow (rightward flowing is combined with a left strip-shaped groove design), so that the rejection rate is increased; the filter screen intercepts large-particle suspended matters, and the pollution discharge hose further sucks concentrated impurities, so that the risk of secondary pollution of the mother liquor is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mother liquor water treatment technology, and in particular to a sedimentation and separation device. Background Technology

[0002] In industrial production, mother liquor often refers to wastewater or byproducts generated during the production process. For example, in PVC production, the centrifugation process produces a large amount of mother liquor, which contains high concentrations of particulate matter and organic matter and requires extensive treatment before reuse. Mother liquor may contain impurities such as suspended solids, insoluble solids, and heavy metal ions. These impurities can interfere with the effectiveness of the mother liquor and even cause corrosion or contamination of equipment. For instance, sedimentation separation can separate insoluble solid impurities from the mother liquor, thereby reducing the impact of impurities on subsequent treatment processes.

[0003] In existing technologies, the mother liquor may contain impurities such as suspended solids, insoluble solids, and heavy metal ions. These impurities can interfere with the effectiveness of the mother liquor and even cause corrosion or contamination to the equipment. However, changes in liquid level may cause fluctuations in flow rate, affecting the retention or sedimentation of suspended solids, resulting in incomplete treatment or excessive waste of resources. For example, if the liquid level is too high, impurities may escape due to insufficient processing capacity, while if it is too low, the sediment is easily disturbed, causing the separated suspended solids to redisperse. Therefore, we propose a sedimentation separation device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a precipitation separation device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sedimentation separation device includes a sedimentation tank with two sludge discharge pipes fixedly connected to its bottom. Two fixed plates are fixedly connected inside the sedimentation tank, and guide rods are fixedly connected to the top of each plate. Circular sleeves are slidably fitted onto the outer walls of the guide rods, and connecting plates are fixedly fitted onto the outer walls of the circular sleeves. Threaded holes are formed on the outer walls of the connecting plates, and externally threaded pipes are threaded to the inner walls of the threaded holes. Corrugated pipes are fixedly connected to the top of the externally threaded pipes. Hollow floating plates are fixedly connected to one end of each connecting plate, and a suspended solids collection assembly is provided on the top of the floating plates.

[0007] Preferably, the suspended solids collection assembly includes a float tube, the top of the float plate is fixedly connected to the outer wall of the float tube, the outer wall of the float tube has a strip groove, a filter screen is fixedly connected inside the float tube, and a sewage discharge hose is fixedly connected to the bottom of the float tube. The suspended solids in the mother liquor water are collected by setting up the suspended solids collection assembly.

[0008] Preferably, electronic valves are fixedly fitted on the outer walls of both sludge discharge pipes, and the bottoms of the two sludge discharge pipes are fixedly connected to the same sludge collection pipe. The precipitated solid particles and impurities are discharged through the two sludge discharge pipes and the sludge collection pipe.

[0009] Preferably, the outer wall of the sedimentation tank is fixedly connected to two baffles, and the outer wall of the sedimentation tank is fixedly interconnected with a mother liquor inlet pipe, and the two baffles support the sedimentation tank.

[0010] Preferably, a sewage pump is fixedly connected to one end of the corrugated pipe, and a pump body is fixedly connected to one end of the sewage hose.

[0011] Preferably, the outer wall of the float plate is provided with an installation hole, and the inner wall of the installation hole is fixedly connected to the outer wall of the sewage hose.

[0012] Preferably, the inner wall of the sleeve is rotatably embedded with multiple balls made of stainless steel, and the multiple balls reduce the friction between the sleeve and the guide rod to facilitate the raising and lowering of the float.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] This solution utilizes a floating plate structure that automatically adjusts with the liquid level to ensure that suspended solids are always drawn close to the water surface, preventing reduced treatment efficiency or escape of impurities due to liquid level fluctuations. Negative pressure suction and directional water flow (right-hand flow combined with a left-side strip channel design) encourage suspended solids to actively gather and enter the cleaning area, increasing the interception rate. A filter screen intercepts large suspended particles, and a drain hose further concentrates impurities, reducing the risk of secondary pollution of the mother liquor. Guide rods and a circular sleeve structure ensure vertical movement of the floating plate, preventing disturbance of the bottom sedimentation layer and preventing the resuspension of settled solid particles. Separate discharge (treating upper suspended solids and bottom sludge separately) reduces energy consumption and material waste, and the filtered mother liquor is returned to the sedimentation tank for recycling. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments 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.

[0016] Figure 1 This is a cross-sectional three-dimensional structural diagram of a sedimentation separation device proposed in this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of a sedimentation separation device proposed in this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of a precipitation separation device proposed in this utility model;

[0019] Figure 4 This utility model proposes a precipitation separation device. Figure 2 A magnified structural diagram of part A in the diagram.

[0020] In the diagram: 1. Sedimentation tank; 2. Sludge discharge pipe; 3. Electronic valve; 4. Sludge collection pipe; 5. Baffle; 6. Fixing plate; 7. Guide rod; 8. Round sleeve; 9. Connecting plate; 10. External threaded pipe; 11. Corrugated pipe; 12. Float plate; 13. Float pipe; 14. Filter screen; 15. Sewage discharge hose. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Depend on Figures 1-4 As shown, a sedimentation separation device is disclosed, including a sedimentation tank 1. Two sludge discharge pipes 2 are fixedly connected to the bottom of the sedimentation tank 1. Electronic valves 3 are fixedly fitted on the outer walls of the two sludge discharge pipes 2. The electronic valves 3 control the opening and closing of the sludge discharge pipes 2. An existing controller can be added. The specific circuit connection adopts the existing conventional method. The bottom of the two sludge discharge pipes 2 is fixedly connected to the same sludge collection pipe 4. Two baffles 5 are fixedly connected to the outer wall of the sedimentation tank 1. A mother liquor inlet pipe is fixedly connected to the outer wall of the sedimentation tank 1. The mother liquor inlet pipe pumps the mother liquor into the sedimentation tank 1 through an existing sewage pump.

[0023] The sedimentation tank 1 has two fixed plates 6 inside, and guide rods 7 are fixedly connected to the top of each of the two fixed plates 6. The fixed plates 6 support the guide rods 7. The outer walls of the two guide rods 7 are slidably fitted with round sleeves 8. The inner walls of the round sleeves 8 are rotatably embedded with multiple balls. The multiple balls reduce the friction of the round sleeves 8 sliding on the guide rods 7.

[0024] Both circular sleeves 8 are fixedly fitted with connecting plates 9 on their outer walls. Both connecting plates 9 have threaded holes on their outer walls. The inner walls of the threaded holes are threaded with external threaded pipes 10. The top of the external threaded pipes 10 is fixedly connected to a corrugated pipe 11. The external threaded pipes 10 are connected to the threaded holes to adjust the distance between the water inlet port and the water surface. One end of the corrugated pipe 11 is fixedly connected to a sewage pump. One end of the two connecting plates 9 is fixedly connected to a hollow floating plate 12, which supports the floating pipe 13.

[0025] The top of the float plate 12 is equipped with a suspended solids collection assembly, which includes a float tube 13. The top of the float plate 12 is fixedly connected to the outer wall of the float tube 13. The outer wall of the float tube 13 has a strip groove. The operation of the sewage pump draws the liquid below the float tube 13. During the flow, due to inertia, the surrounding water will continue to flow towards the suction point. A filter screen 14 is fixedly connected inside the float tube 13. A sewage hose 15 is fixedly connected to the bottom of the float tube 13. The top of the sewage hose 15 is located below the interception surface of the filter screen 14. One end of the float tube 13 is designed to be open. One end of the sewage hose 15 is fixedly connected to the pump body. The outer wall of the float plate 12 has an installation hole, and the inner wall of the installation hole is fixedly connected to the outer wall of the sewage hose 15.

[0026] Working principle: During the sedimentation and separation of mother liquor, the mother liquor enters the sedimentation tank 1 through the mother liquor inlet pipe. After sedimentation (based on the density difference between solid and liquid, heavier solid particles will settle to the bottom, while lighter particles may remain suspended for a longer time or form different sediment layers), when treating suspended solids, the float pipe 13 floats on the water surface through the hollow float plate 12, while the strip trough is located on the surface of the mother liquor. As the sewage pump operates, a negative pressure is formed in the corrugated pipe 11 and the external threaded pipe 10, which draws out the liquid below the float pipe 13. As the liquid level drops and the water flow fluctuates, the suspended solids flow into the strip trough (because the external threaded pipe 10 is located on the float pipe 13). The water flows to the right of the floating pipe 13 (the water flows to the right), and the corrugated water is filtered through the filter screen 14 and re-enters the sedimentation tank 1. The suspended solids trapped in the filter screen 14 and the floating pipe 13 are pumped out by creating negative pressure in the drain hose 15 through the operation of the pump body. The drop in liquid level causes the float plate 12 to descend, ensuring continuous cleaning of suspended solids. During the descent of the float plate 12, the guide rod 7 and the circular sleeve 8 assist it to move straight down. The solid particles at the bottom of the sedimentation tank 1 are discharged into the sludge collection pipe 4 through the two sludge discharge pipes 2 by opening the two electronic valves 3.

[0027] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sedimentation separation device, comprising a sedimentation tank (1), characterized in that, The bottom of the sedimentation tank (1) is fixedly connected to two sludge discharge pipes (2). The interior of the sedimentation tank (1) is fixedly connected to two fixed plates (6). The top of each fixed plate (6) is fixedly connected to a guide rod (7). The outer walls of each guide rod (7) are slidably fitted with a round sleeve (8). The outer walls of each round sleeve (8) are fixedly fitted with a connecting plate (9). The outer walls of each connecting plate (9) are threaded. The inner walls of the threaded holes are threaded with an external threaded pipe (10). The top of the external threaded pipe (10) is fixedly connected to a corrugated pipe (11). One end of each connecting plate (9) is fixedly connected to a hollow floating plate (12). The top of the floating plate (12) is provided with a suspended solids collection component.

2. The precipitation separation device according to claim 1, characterized in that, The suspended solids collection assembly includes a float tube (13), the top of the float plate (12) is fixedly connected to the outer wall of the float tube (13), the outer wall of the float tube (13) is provided with a strip groove, a filter screen (14) is fixedly connected inside the float tube (13), and a sewage hose (15) is fixedly connected to the bottom of the float tube (13).

3. The precipitation separation device according to claim 1, characterized in that, Electronic valves (3) are fixedly fitted on the outer walls of the two sludge discharge pipes (2), and the bottoms of the two sludge discharge pipes (2) are fixedly connected to the same sludge collection pipe (4).

4. The precipitation separation device according to claim 1, characterized in that, The outer wall of the sedimentation tank (1) is fixedly connected to two baffles (5), and the outer wall of the sedimentation tank (1) is fixedly connected to a mother liquor inlet pipe.

5. A precipitation separation device according to claim 2, characterized in that, One end of the corrugated pipe (11) is fixedly connected to a sewage pump, and one end of the sewage hose (15) is fixedly connected to a pump body.

6. A precipitation separation device according to claim 2, characterized in that, The outer wall of the float plate (12) is provided with an installation hole, and the inner wall of the installation hole is fixedly connected to the outer wall of the sewage hose (15).

7. A precipitation separation device according to claim 1, characterized in that, The inner wall of the sleeve (8) is rotatably inlaid with multiple balls.

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