A device for treating concentrated water after membrane separation

Abstract

The application discloses a kind of membrane separation concentrated water processing equipment, and the application relates to sewage treatment technical field.The membrane separation concentrated water processing equipment, including processing tank, agitating mechanism, impurity removal mechanism, agitating mechanism includes shaft and servo motor, the outer cylindrical surface of shaft and the top position of processing tank inner cavity close installation have defoaming assembly, the outer cylindrical surface of shaft and the bottom position of processing tank inner cavity close fixedly connected with stirring plate, impurity removal mechanism includes conical screen and collection component, conical screen surface middle is fixedly connected with lower conical extension ring, the surface of conical screen and the top position close fixedly connected with upper conical extension ring, the surface of lower conical extension ring and the surface of upper conical extension ring are all fixedly installed with guide vane, the middle of upper conical extension ring surface is fixedly installed with stirring tooth, reaches the purpose of impurity removal, can remove particulate impurities, and pharmaceutical and concentrated water are uniformly mixed, effectively treat sewage, safe and reliable.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a device for treating concentrated wastewater after membrane separation. Background Technology

[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. By treating wastewater, the discharge of pollutants into natural water bodies is reduced, water pollution is prevented, the ecological balance of rivers, lakes, and oceans is protected, the living environment of aquatic organisms is maintained, and the sustainable use of water resources is ensured. Many industries, such as chemical, printing and dyeing, and papermaking, require large amounts of water resources and also generate large amounts of wastewater. Effective wastewater treatment can achieve water resource recycling, reduce water costs for enterprises, improve water resource utilization efficiency, and promote the sustainable development of industrial production. Furthermore, a good water environment can attract investment and promote the development of industries such as tourism. In recent years, with the gradual maturation and cost reduction of membrane separation technology, it has been widely used in water and wastewater treatment. In the wastewater treatment process, the concentrated water after membrane separation needs to be treated again.

[0003] Currently, in traditional wastewater treatment, the agitation of the wastewater causes particulate impurities to remain suspended, making it difficult to remove these impurities. As a result, the wastewater still contains a large number of particulate impurities, leading to inadequate wastewater treatment. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A device for treating concentrated wastewater after membrane separation includes a treatment tank, an inlet assembly installed on the side of the top of the treatment tank, and a drain pipe installed in the middle of the bottom of the treatment tank.

[0006] A stirring mechanism is used to mix the reagents and the concentrated water after membrane separation in the treatment tank. The stirring mechanism is installed in the middle of the inside of the treatment tank.

[0007] The agitation mechanism includes a rotating shaft and a servo motor. The rotating shaft is rotatably installed in the middle of the inside of the treatment tank, and the servo motor is fixedly installed in the middle of the top of the treatment tank. The output end of the servo motor is fixedly installed to the top of the rotating shaft via a coupling. A defoaming component is installed on the outer circular surface of the rotating shaft near the top of the inner cavity of the treatment tank. An agitating plate is fixedly connected to the outer circular surface of the rotating shaft near the bottom of the inner cavity of the treatment tank. The surface of the agitating plate has an arc hole. By rotating the output end of the servo motor and with the fixed installation of the coupling, the rotating shaft is driven to rotate, thereby causing the agitating plate to rotate along with the rotating shaft. As the agitating plate rotates continuously, the reagents and the concentrated water after membrane separation in the treatment tank can be mixed, which helps to treat the concentrated water.

[0008] Impurity removal mechanism, which is used to treat impurities in the concentrate after membrane separation, is installed in the middle of the inner cavity of the treatment tank;

[0009] The impurity removal mechanism includes a conical filter and a collection assembly. The bottom edge of the conical filter is fixedly connected to the middle of the inner wall of the treatment tank. The outer circular surface of the rotating shaft is rotatably mounted between the top of the conical filter and the outer circular surface of the treatment tank. The collection assembly is installed in the middle of the outer circular surface of the treatment tank. A lower conical extension ring is fixedly connected to the middle of the surface of the conical filter. An upper conical extension ring is fixedly connected to the surface of the conical filter near the top. Guide vanes are fixedly installed on the surfaces of both the lower and upper conical extension rings. A toggle tooth is fixedly installed in the middle of the surface of the upper conical extension ring. When concentrated water is injected into the interior of the treatment tank, it passes through the conical filter, thus filtering particulate impurities in the concentrated water. This provides preliminary treatment of the impurities in the concentrated water. Furthermore, the inner diameter of the conical filter gradually decreases from bottom to top, causing the filtered impurities to deposit downwards and near the inner wall of the treatment tank, which helps in subsequent impurity removal.

[0010] Preferably, the agitator plates are installed at an angle, and there are three agitator plates, which are evenly installed along the circumferential direction of the axis of rotation. As the agitator plates rotate continuously, and given their angled installation, they can turn the concentrated water at the bottom of the treatment tank upwards during rotation, which helps the concentrated water and the reagent to fully mix. Furthermore, the use of arc-shaped holes on the surface of the agitator plates reduces the contact area between the agitator plates and the concentrated water during rotation, thereby reducing resistance and facilitating smooth rotation of the agitator plates.

[0011] Preferably, the defoaming component includes a connecting sleeve and a base tooth. The center of the connecting sleeve is fixedly connected to the outer circular surface of the rotating shaft and near the top of the inner cavity of the treatment tank. The base tooth is fixedly connected to the outer circular surface of the rotating shaft and near the connecting sleeve. A support spring is fixedly connected to the middle of the outer circular surface of the connecting sleeve and near the actuating tooth. A semi-circular force block is fixedly connected to the end of the support spring away from the connecting sleeve.

[0012] Preferably, the support spring is installed directly above the base tooth, and there are three support springs, which are evenly distributed in the middle of the outer circumference of the connecting sleeve.

[0013] Preferably, the axis at the center of the conical filter screen coincides with the axis of the rotating shaft. The guide vanes are arc-shaped and evenly distributed on the surfaces of the lower and upper conical extension rings. The agitator plate stirs the concentrated water in the treatment tank, causing it to rotate. This allows impurities in the concentrated water to be subjected to centrifugal force. Combined with the guiding effect of the guide vanes, the impurities in the concentrated water move closer to the inner wall of the treatment tank. This fully utilizes the movement of the concentrated water and the centrifugal force to promote the aggregation of impurities.

[0014] Preferably, the upper conical extension ring is installed directly above the lower conical extension ring. The actuating teeth are arc-shaped, and there are three actuating teeth. The three actuating teeth are evenly distributed in the middle of the surface of the upper conical extension ring. As impurities in the concentrate move towards the inner wall of the treatment tank under the action of centrifugal force, and combined with the outward extension of the lower and upper conical extension rings, the backflow of aggregated particulate impurities is reduced, making it difficult for aggregated impurities to float randomly.

[0015] Preferably, the collection assembly includes a crescent-shaped square tube, which is fixedly connected to the outer circumference of the treatment tank and near the bottom of the conical filter. Both the inlet and outlet of the crescent-shaped square tube are connected to the treatment tank. A sealing cap is installed at the center of the top of the crescent-shaped square tube. A conical hopper is fixedly installed in the inner cavity of the crescent-shaped square tube near the inlet. A flat plate is fixedly installed at the top of the inner cavity of the crescent-shaped square tube near the conical hopper. The inner cavity of the crescent-shaped square tube is located near the outlet. A fixed slag-blocking net is installed. When the stirring plate agitates the concentrated water in the treatment tank, the concentrated water rotates in a circular motion. Under the action of centrifugal force, the filtered particulate impurities are carried along the inner wall of the treatment tank and rotate together. The particulate impurities enter from the inlet of the crescent-shaped square tube, pass through the conical hopper, and are intercepted by the slag-blocking net, thus filtering and removing impurities. The filtered concentrated water returns to the treatment tank from the outlet of the crescent-shaped square tube, forming a cycle that fully treats the particulate impurities.

[0016] Preferably, the plate is installed at an angle, and the position of the plate corresponds to the position of the conical hopper. As the concentrated water carries particulate impurities through the conical hopper, the flow of the concentrated water and the angled installation of the plate make it difficult for particulate impurities to flow back, effectively reducing the backflow of particulate impurities.

[0017] As the rotating shaft drives the entire defoaming assembly to rotate, the supporting spring bar, connected by the connecting sleeve, rotates along with the shaft. The supporting spring bar contacts the actuating teeth, causing the actuating teeth to push the supporting spring bar upwards, resulting in elastic deformation. The semi-circular force block moves upwards as the supporting spring bar elastically deforms. As the supporting spring bar continues to rotate, it disengages from the actuating teeth, and the upward pushing force on the supporting spring bar disappears. The elasticity of the supporting spring bar itself then causes the semi-circular force block to move downwards and reset, thus impacting the concentrated liquid surface in the treatment tank and generating vibration. This causes the bubbles floating on the concentrated liquid surface to burst, thereby achieving defoaming. This fully utilizes the interaction between the structures, connecting them together.

[0018] Preferably, the liquid inlet assembly includes a right-angle pipe and a right-angle bracket. The bottom end of the right-angle pipe is fixedly installed at the top of the treatment tank and near the servo motor, and the right-angle pipe is connected to the treatment tank. The top end of the right-angle bracket is fixedly connected to the top of the inner cavity of the treatment tank and near the rotating shaft. A valve is installed in the middle of the surface of the right-angle pipe. A cone is rotatably installed at the bottom end of the right-angle bracket and near the liquid outlet of the right-angle pipe. An impeller is fixedly connected to the conical surface of the cone. The concentrated water to be treated is injected from the right-angle pipe, so that the concentrated water flows downward from the bottom end of the right-angle pipe. The flow of concentrated water impacts the impeller, causing the cone and impeller to rotate together. The rotation of the impeller can then be used to spread the downward-flowing concentrated water evenly, reducing the accumulation of particulate impurities carried by the concentrated water.

[0019] Preferably, the cone is installed directly below the liquid outlet of the right-angle pipe, and the impeller blades are evenly distributed on the conical surface of the cone.

[0020] This invention provides a device for treating concentrated wastewater after membrane separation. It has the following beneficial effects:

[0021] I. The equipment for treating concentrated water after membrane separation utilizes the rotation of the output end of a servo motor, and with the fixed installation of the coupling, the rotating shaft is driven to rotate, thereby causing the agitator plate to rotate along with the rotating shaft. As the agitator plate rotates continuously, the reagents and concentrated water after membrane separation in the treatment tank can be mixed, which helps to treat the concentrated water.

[0022] 2. The equipment for treating the concentrate after membrane separation, with the agitator plate rotating continuously and installed at an angle, allows the concentrate at the bottom of the treatment tank to be turned upwards during rotation, which helps the concentrate and reagents to fully mix. In addition, the use of arc-shaped holes on the surface of the agitator plate reduces the contact area between the agitator plate and the concentrate during rotation, thereby reducing resistance and facilitating smooth rotation of the agitator plate.

[0023] Third, the equipment for treating the concentrated water after membrane separation uses concentrated water injected into the interior of the treatment tank, allowing the concentrated water to pass through a conical filter screen, which can filter particulate impurities in the concentrated water, thus performing preliminary treatment of impurities in the concentrated water. In addition, the inner diameter of the conical filter screen gradually decreases from bottom to top, causing the filtered impurities to settle downwards and close to the inner wall of the treatment tank, which helps to remove impurities in subsequent processes.

[0024] IV. The equipment for treating the concentrate after membrane separation uses a stirring plate to agitate the concentrate in the treatment tank, causing the concentrate to rotate. This allows impurities in the concentrate to be subjected to centrifugal force, and combined with the guiding effect of the guide plate, the impurities in the concentrate move closer to the inner wall of the treatment tank. This fully utilizes the movement of the concentrate and the centrifugal force to promote the aggregation of impurities.

[0025] 5. The equipment for treating the concentrate after membrane separation, as the impurities in the concentrate move towards the inner wall of the treatment tank under the action of centrifugal force, and combined with the outward extension of the lower and upper conical extension rings, reduces the backflow of aggregated particulate impurities, making it less likely for the aggregated impurities to float randomly.

[0026] VI. The concentrated water treatment equipment after membrane separation, when the stirring plate agitates the concentrated water in the treatment tank, causes the concentrated water to rotate in a circular motion. Under the action of centrifugal force, the filtered particulate impurities are carried along the inner wall of the treatment tank and rotate together. The particulate impurities enter from the inlet of the crescent-shaped square tube, pass through the conical hopper, and are intercepted by the slag-blocking net, thus filtering and removing impurities. The filtered concentrated water returns to the treatment tank from the outlet of the crescent-shaped square tube, thus forming a cycle and fully treating the particulate impurities.

[0027] VII. The equipment for treating the concentrate after membrane separation, as the concentrate carrying particulate impurities passes through the conical hopper, and with the flow of the concentrate fluid, combined with the inclined installation of the plate, makes it difficult for particulate impurities to flow back, which can effectively reduce the backflow of particulate impurities.

[0028] 8. The equipment for treating the concentrated water after membrane separation, under the connection of the connecting sleeve, uses a rotating shaft to drive the support spring to rotate, so that the support spring is pushed upward by the actuating teeth, which causes the support spring to elastically deform. The semi-circular force block will move upward with the elastic deformation of the support spring. As the support spring disengages from the actuating teeth, the upward pushing force on the support spring disappears, and the elasticity of the support spring itself can be used to make the semi-circular force block move downward to reset. This can strike the surface of the concentrated water in the treatment tank to generate vibration, causing the bubbles floating on the surface of the concentrated water to burst, thereby achieving defoaming.

[0029] 9. The equipment for treating the concentrate after membrane separation injects the concentrate to be treated from a right-angle pipe, allowing the concentrate to flow downwards from the bottom of the right-angle pipe. The flow of the concentrate impacts the impeller blades, causing the cone and impeller blades to rotate together. The rotation of the impeller blades can then be used to spread the downward-flowing concentrate, ensuring even distribution and reducing the accumulation of particulate impurities carried by the concentrate. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the membrane separation concentrate treatment equipment of the present invention;

[0031] Figure 2 This is a schematic diagram of the cross-section of the equipment for treating concentrated wastewater after membrane separation according to the present invention;

[0032] Figure 3 This is a schematic diagram of the connection structure between the stirring mechanism and the processing tank of the present invention;

[0033] Figure 4 This is a schematic diagram of the overall structure of the stirring mechanism of the present invention;

[0034] Figure 5 This is a schematic diagram of the overall structure of the defoaming component of the present invention;

[0035] Figure 6 This is a schematic diagram of the connection structure between the impurity removal mechanism and the processing tank of the present invention;

[0036] Figure 7 This is a schematic diagram of the overall structure of the impurity removal mechanism of the present invention;

[0037] Figure 8 This is a schematic diagram of the connection structure between the collection component and the processing tank in this invention;

[0038] Figure 9 This is a schematic diagram of the internal structure of the crescent-shaped square tube cross-section of the present invention;

[0039] Figure 10 This is a schematic diagram of the connection structure between the liquid inlet assembly and the treatment tank of the present invention.

[0040] In the diagram: 1. Processing tank; 2. Liquid inlet assembly; 3. Liquid outlet pipe; 4. Agitation mechanism; 5. Impurity removal mechanism; 21. Right-angle pipe; 22. Right-angle frame; 23. Valve; 24. Cone; 25. Impeller blade; 41. Rotating shaft; 42. Servo motor; 43. Defoaming assembly; 44. Agitator plate; 431. Connecting sleeve; 432. Support spring; 433. Semi-circular force block; 434. Base tooth; 45. Arc hole; 51. Conical filter screen; 52. Collection assembly; 53. Lower conical extension ring; 54. Upper conical extension ring; 55. Guide vane; 56. Agitator tooth; 521. Crescent-shaped square tube; 522. Sealing cap; 523. Conical hopper; 524. Flat plate; 525. Slag trap. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] First embodiment, such as Figures 1 to 5 As shown, the present invention provides a technical solution:

[0043] A device for treating concentrated wastewater after membrane separation includes a treatment tank 1, an inlet assembly 2 installed on the side of the top of the treatment tank 1, and a drain pipe 3 installed in the middle of the bottom of the treatment tank 1.

[0044] A stirring mechanism 4 is used to mix the reagents and the concentrated water after membrane separation in the treatment tank 1. The stirring mechanism 4 is installed in the middle of the inside of the treatment tank 1.

[0045] The stirring mechanism 4 includes a rotating shaft 41 and a servo motor 42. The rotating shaft 41 is rotatably installed in the middle of the inside of the treatment tank 1, and the servo motor 42 is fixedly installed in the middle of the top of the treatment tank 1. The output end of the servo motor 42 is fixedly installed to the top of the rotating shaft 41 through a coupling. A defoaming component 43 is installed on the outer circular surface of the rotating shaft 41 near the top of the inner cavity of the treatment tank 1. An agitator 44 is fixedly connected to the outer circular surface of the rotating shaft 41 near the bottom of the inner cavity of the treatment tank 1. An arc hole 45 is opened on the surface of the agitator 44. When the operator turns on the servo motor 42, the rotating shaft 41 is driven to rotate by the rotation of the output end of the servo motor 42 and the fixed installation of the coupling. This causes the agitator 44 to rotate together with the rotating shaft 41. As the agitator 44 rotates continuously, the reagent and the concentrated water after membrane separation in the treatment tank 1 can be mixed.

[0046] The stirring plates 44 are installed at an angle. There are three stirring plates 44, and the three stirring plates 44 are evenly installed along the circumferential direction of the axis of the rotating shaft 41. As the stirring plates 44 rotate continuously, combined with the inclined installation of the stirring plates 44, the concentrated water at the bottom of the inner cavity of the treatment tank 1 can be turned upward when the stirring plates 44 rotate, which helps the concentrated water and the reagent to fully mix. In addition, the use of arc holes 45 on the surface of the stirring plates 44 can reduce the contact area between the stirring plates 44 and the concentrated water when the stirring plates 44 rotate, thereby reducing resistance and helping the stirring plates 44 rotate smoothly.

[0047] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 9 As shown:

[0048] Impurity removal mechanism 5 is used to treat impurities in the concentrate after membrane separation. The impurity removal mechanism 5 is installed in the middle of the inner cavity of the treatment tank 1.

[0049] The impurity removal mechanism 5 includes a conical filter screen 51 and a collection assembly 52. ​​The bottom edge of the conical filter screen 51 is fixedly connected to the middle of the inner wall of the treatment tank 1. The outer circular surface of the rotating shaft 41 is rotatably installed between the top of the conical filter screen 51 and the outer circular surface of the treatment tank 1. The collection assembly 52 is installed in the middle of the outer circular surface of the treatment tank 1. A lower conical extension ring 53 is fixedly connected to the middle of the surface of the conical filter screen 51. An upper conical extension ring 54 is fixedly connected to the surface of the conical filter screen 51 near the top. Guide plates 55 are fixedly installed on the surfaces of both the lower conical extension ring 53 and the upper conical extension ring 54. A moving tooth 56 is fixedly installed in the middle of the surface of the upper conical extension ring 54. When concentrated water is injected into the interior of the treatment tank 1, the concentrated water passes through the conical filter screen 51, which can filter particulate impurities in the concentrated water, thereby performing preliminary treatment of impurities in the concentrated water. Combined with the fact that the inner diameter of the conical filter screen 51 gradually decreases from bottom to top, the filtered impurities will settle downwards and near the inner wall of the treatment tank 1.

[0050] The axis at the center of the conical filter 51 coincides with the axis of the rotating shaft 41. The guide vane 55 is arc-shaped and is evenly distributed on the surface of the lower conical extension ring 53 and the surface of the upper conical extension ring 54.

[0051] The concentrated water in the treatment tank 1 is stirred by the stirring plate 44, causing the concentrated water in the treatment tank 1 to rotate. This causes the impurities in the concentrated water to be subjected to centrifugal force. Combined with the guiding effect of the guide plate 55, the impurities in the concentrated water move closer to the inner wall of the treatment tank 1. The movement of the concentrated water, combined with centrifugal force, promotes the aggregation of impurities.

[0052] The upper conical extension ring 54 is installed directly above the lower conical extension ring 53. The actuating teeth 56 are arc-shaped, and there are three actuating teeth 56. The three actuating teeth 56 are evenly distributed in the middle of the surface of the upper conical extension ring 54. As the impurities in the concentrate are moved towards the inner wall of the treatment tank 1 by the centrifugal force, and combined with the outward extension of the lower conical extension ring 53 and the upper conical extension ring 54, the aggregated particulate impurities are reduced from floating randomly.

[0053] The collection component 52 includes a crescent-shaped square tube 521, which is fixedly connected to the outer circumference of the treatment tank 1 and near the bottom of the conical filter screen 51. Both the inlet and outlet of the crescent-shaped square tube 521 are connected to the treatment tank 1. A sealing cap 522 is installed at the middle of the top of the crescent-shaped square tube 521. A conical hopper 523 is fixedly installed in the inner cavity of the crescent-shaped square tube 521 near the inlet. A flat plate 524 is fixedly installed at the top of the inner cavity of the crescent-shaped square tube 521 near the conical hopper 523. A plate 524 is fixedly installed in the inner cavity of the crescent-shaped square tube 521 near the outlet. A slag-blocking net 525 is fixedly installed. When the stirring plate 44 agitates the concentrated water in the treatment tank 1, the concentrated water rotates in a circular motion. Under the action of centrifugal force, the filtered particulate impurities are carried along the inner wall of the treatment tank 1 and rotate together. The particulate impurities enter from the inlet of the crescent-shaped square tube 521, pass through the conical hopper 523, and are intercepted by the slag-blocking net 525, thereby filtering and removing impurities. The filtered concentrated water returns to the treatment tank 1 from the outlet of the crescent-shaped square tube 521, thus forming a cycle and fully treating the particulate impurities.

[0054] The plate 524 is installed at an angle, and its position corresponds to that of the conical hopper 523. As the concentrate carries particulate impurities through the conical hopper 523, the flow of the concentrate, combined with the angled installation of the plate 524, makes it difficult for particulate impurities to flow back, effectively reducing the backflow of particulate impurities.

[0055] The defoaming component 43 includes a connecting sleeve 431 and a base tooth 434. The center of the connecting sleeve 431 is fixedly connected to the outer circumference of the rotating shaft 41 and near the top of the inner cavity of the treatment tank 1. The base tooth 434 is fixedly connected to the outer circumference of the rotating shaft 41 and near the connecting sleeve 431. A support spring strip 432 is fixedly connected to the middle of the outer circumference of the connecting sleeve 431 and near the actuating tooth 56. A semi-circular force-bearing block 433 is fixedly connected to the end of the support spring strip 432 away from the connecting sleeve 431. As the rotating shaft 41 drives the entire defoaming component 43 to rotate, the support spring strip 432 will rotate together with the rotating shaft 41 under the connection of the connecting sleeve 431. By utilizing the contact between the support spring 432 and the actuating tooth 56, the support spring 432 is pushed upward by the actuating tooth 56, which causes the support spring 432 to undergo elastic deformation. The semi-circular force block 433 moves upward as the support spring 432 elastically deforms. As the support spring 432 continues to rotate, it disengages from the actuating tooth 56, and the upward pushing force on the support spring 432 disappears. The elastic force of the support spring 432 itself can then be used to move the semi-circular force block 433 downward to reset, thereby striking the surface of the concentrated liquid in the treatment tank 1 to generate vibration, causing the bubbles floating on the surface of the concentrated liquid to burst.

[0056] The support spring strip 432 is installed directly above the base tooth 434. There are three support spring strips 432, and the three support spring strips 432 are evenly distributed in the middle of the outer circle of the connecting sleeve 431.

[0057] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 1 to 10 As shown:

[0058] The liquid inlet assembly 2 includes a right-angle pipe 21 and a right-angle bracket 22. The bottom end of the right-angle pipe 21 is fixedly installed at the top of the treatment tank 1 and near the servo motor 42, and the right-angle pipe 21 is connected to the treatment tank 1. The top end of the right-angle bracket 22 is fixedly connected to the top of the inner cavity of the treatment tank 1 and near the rotating shaft 41. A valve 23 is installed in the middle of the surface of the right-angle pipe 21. A cone 24 is rotatably installed at the bottom end of the right-angle bracket 22 and near the liquid outlet of the right-angle pipe 21. An impeller blade 25 is fixedly connected to the conical surface of the cone 24. When the operator injects the concentrated water to be treated from the right-angle pipe 21, the concentrated water flows downward from the bottom end of the right-angle pipe 21. The flow of concentrated water can impact the impeller blade 25, causing the cone 24 and the impeller blade 25 to rotate together. The rotation of the impeller blade 25 can be used to spread the downward flowing concentrated water, making the concentrated water spread evenly and reducing the accumulation of particulate impurities carried by the concentrated water.

[0059] The cone 24 is installed directly below the liquid outlet of the right-angle pipe 21, and the impeller blades 25 are evenly distributed on the conical surface of the cone 24.

[0060] In use, the staff first injects the concentrated water to be treated into the right-angle pipe 21, so that the concentrated water flows down from the bottom of the right-angle pipe 21. The flow of concentrated water can then impact the impeller 25, causing the cone 24 and the impeller 25 to rotate together. The rotation of the impeller 25 can then be used to spread the downward-flowing concentrated water evenly. The wastewater treatment agent is then added from the pipe opening on the side of the top of the treatment tank 1, so that the concentrated water comes into contact with the agent.

[0061] Furthermore, by injecting concentrated water into the interior of the treatment tank 1, the concentrated water passes through the conical filter screen 51, which can filter out particulate impurities in the concentrated water, thereby performing preliminary treatment of the impurities in the concentrated water. In addition, the inner diameter of the conical filter screen 51 gradually decreases from bottom to top, so that the filtered impurities will be deposited downwards and close to the inner wall of the treatment tank 1.

[0062] At the same time, the staff started the servo motor 42 to work. The rotation of the output end of the servo motor 42, and the fixed installation of the coupling, caused the rotating shaft 41 to be driven to rotate, which in turn caused the stirring plate 44 to be driven to rotate together by the rotating shaft 41. As the stirring plate 44 rotated continuously, the reagent and the concentrated water after membrane separation in the treatment tank 1 could be mixed.

[0063] As the stirring plate 44 rotates continuously, and given that the stirring plate 44 is installed at an angle, it can turn the concentrated water at the bottom of the treatment tank 1 upwards when it rotates, which helps the concentrated water and the reagent to fully mix. Furthermore, by using the arc-shaped hole 45 on the surface of the stirring plate 44, the contact area between the stirring plate 44 and the concentrated water can be reduced when the stirring plate 44 rotates, thereby reducing resistance and helping the stirring plate 44 to rotate smoothly.

[0064] Furthermore, the agitator plate 44 is used to agitate the concentrated water in the treatment tank 1, causing the concentrated water in the treatment tank 1 to rotate. This allows the impurities in the concentrated water to be subjected to centrifugal force. Combined with the guiding effect of the guide plate 55, the impurities in the concentrated water move towards the inner wall of the treatment tank 1. This fully utilizes the movement of the concentrated water and, combined with centrifugal force, promotes the aggregation of impurities.

[0065] Furthermore, as impurities in the concentrated water are subjected to centrifugal force, they move towards the inner wall of the treatment tank 1, and together with the lower conical extension ring 53 and the upper conical extension ring 54 extending outward, the aggregated particulate impurities are reduced from floating randomly.

[0066] When the stirring plate 44 agitates the concentrated water in the treatment tank 1, it causes the concentrated water to rotate in a circular motion. Under the action of centrifugal force, the filtered particulate impurities are carried to rotate along the inner wall of the treatment tank 1. The particulate impurities enter from the inlet of the crescent-shaped square tube 521 and pass through the conical hopper 523. They are then intercepted by the slag-blocking net 525, thus filtering and removing impurities. The filtered concentrated water then returns to the treatment tank 1 from the outlet of the crescent-shaped square tube 521, forming a cycle that fully treats the particulate impurities.

[0067] Meanwhile, as the concentrated water carrying particulate impurities passes through the conical hopper 523, and with the flow of the concentrated water fluid, combined with the inclined installation of the plate 524, the particulate impurities are not easy to flow back, which can effectively reduce the backflow of particulate impurities.

[0068] Furthermore, as the rotating shaft 41 drives the defoaming component 43 to rotate as a whole, the supporting spring strip 432 rotates together with the rotating shaft 41 under the connection of the connecting sleeve 431. The supporting spring strip 432 contacts the actuating tooth 56, so that the supporting spring strip 432 is pushed upward by the actuating tooth 56, which causes the supporting spring strip 432 to undergo elastic deformation. The semi-circular force block 433 moves upward as the supporting spring strip 432 elastically deforms. As the supporting spring strip 432 continues to rotate, the supporting spring strip 432 disengages from the actuating tooth 56, and the upward pushing force on the supporting spring strip 432 disappears. The semi-circular force block 433 can then move downward to reset by the elastic force of the supporting spring strip 432 itself. This can strike the surface of the concentrated liquid in the treatment tank 1 to generate vibration, causing the bubbles floating on the surface of the concentrated liquid to burst.

[0069] Once the concentrated water treatment is complete, the liquid can be discharged from the drain pipe 3, and the sealing cap 522 can be opened to remove the particulate impurities filtered out from the crescent-shaped square tube 521.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0071] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for treating concentrated wastewater after membrane separation, characterized in that: It includes a processing tank (1), an inlet assembly (2) is installed on the side of the top of the processing tank (1), and a drain pipe (3) is installed in the middle of the bottom of the processing tank (1). A stirring mechanism (4) is used to mix the reagents and membrane separation concentrate in the treatment tank (1). The stirring mechanism (4) is installed in the middle of the inside of the treatment tank (1). The stirring mechanism (4) includes a rotating shaft (41) and a servo motor (42). The rotating shaft (41) is rotatably installed in the middle of the inside of the processing tank (1). The servo motor (42) is fixedly installed in the middle of the top of the processing tank (1). The output end of the servo motor (42) is fixedly installed to the top of the rotating shaft (41) through a coupling. A defoaming component (43) is installed on the outer circular surface of the rotating shaft (41) near the top of the inner cavity of the processing tank (1). A stirring plate (44) is fixedly connected to the outer circular surface of the rotating shaft (41) near the bottom of the inner cavity of the processing tank (1). A circular arc hole (45) is opened on the surface of the stirring plate (44). Impurity removal mechanism (5) is used to treat impurities in the concentrate after membrane separation. The impurity removal mechanism (5) is installed in the middle of the inner cavity of the treatment tank (1). The impurity removal mechanism (5) includes a conical filter (51) and a collection assembly (52). The bottom edge of the conical filter (51) is fixedly connected to the middle of the inner wall of the treatment tank (1). The outer circular surface of the rotating shaft (41) is rotatably installed between the top of the conical filter (51). The collection assembly (52) is installed in the middle of the outer circular surface of the treatment tank (1). A lower conical extension ring (53) is fixedly connected to the middle of the surface of the conical filter (51). An upper conical extension ring (54) is fixedly connected to the surface of the conical filter (51) and near the top. Guide vanes (55) are fixedly installed on the surface of both the lower conical extension ring (53) and the upper conical extension ring (54). A toggle tooth (56) is fixedly installed in the middle of the surface of the upper conical extension ring (54). The stirring plate (44) is installed at an angle, and there are three stirring plates (44), and the three stirring plates (44) are evenly installed along the circumferential direction of the axis of the rotating shaft (41); The axis at the center of the conical filter (51) coincides with the axis of the rotating shaft (41). The guide vane (55) is arc-shaped and is evenly distributed on the surface of the lower conical extension ring (53) and the surface of the upper conical extension ring (54). The collection component (52) includes a crescent-shaped square tube (521), which is fixedly connected to the outer surface of the treatment tank (1) and near the bottom of the conical filter screen (51). The inlet and outlet of the crescent-shaped square tube (521) are both connected to the treatment tank (1). A sealing cap (522) is installed at the middle of the top of the crescent-shaped square tube (521). A conical hopper (523) is fixedly installed in the inner cavity of the crescent-shaped square tube (521) and near the inlet. A flat plate (524) is fixedly installed at the top of the inner cavity of the crescent-shaped square tube (521) and near the conical hopper (523). A slag-blocking net (525) is fixedly installed in the inner cavity of the crescent-shaped square tube (521) and near the outlet. The liquid inlet assembly (2) includes a right-angle pipe (21) and a right-angle bracket (22). The bottom end of the right-angle pipe (21) is fixedly installed at the top of the processing tank (1) and near the servo motor (42), and the right-angle pipe (21) is connected to the processing tank (1). The top end of the right-angle bracket (22) is fixedly connected to the top of the inner cavity of the processing tank (1) and near the rotating shaft (41). A valve (23) is installed in the middle of the surface of the right-angle pipe (21). A cone (24) is rotatably installed at the bottom end of the right-angle bracket (22) and near the liquid outlet of the right-angle pipe (21). An impeller blade (25) is fixedly connected to the conical surface of the cone (24).

2. The equipment for treating concentrated wastewater after membrane separation according to claim 1, characterized in that: The defoaming component (43) includes a connecting sleeve (431) and a base tooth (434). The center of the connecting sleeve (431) is fixedly connected to the outer circular surface of the rotating shaft (41) and near the top of the inner cavity of the treatment tank (1). The base tooth (434) is fixedly connected to the outer circular surface of the rotating shaft (41) and near the connecting sleeve (431). A support spring strip (432) is fixedly connected to the middle of the outer circular surface of the connecting sleeve (431) and near the actuating tooth (56). A semi-circular force block (433) is fixedly connected to one end of the support spring strip (432) away from the connecting sleeve (431).

3. The equipment for treating concentrated wastewater after membrane separation according to claim 2, characterized in that: The support spring strip (432) is installed directly above the base tooth (434). There are three support spring strips (432), and the three support spring strips (432) are evenly distributed in the middle of the outer circle of the connecting sleeve (431).

4. The equipment for treating concentrated wastewater after membrane separation according to claim 1, characterized in that: The upper conical extension ring (54) is installed directly above the lower conical extension ring (53). The actuating teeth (56) are arc-shaped, and there are three actuating teeth (56), which are evenly distributed in the middle of the surface of the upper conical extension ring (54).

5. The equipment for treating concentrated wastewater after membrane separation according to claim 1, characterized in that: The plate (524) is installed at an angle, and the position of the plate (524) corresponds to the position of the conical bucket (523).

6. The equipment for treating concentrated wastewater after membrane separation according to claim 1, characterized in that: The cone (24) is installed directly below the outlet of the right-angle pipe (21), and the impeller blades (25) are evenly distributed on the conical surface of the cone (24).

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