Spraying wastewater coagulation and sedimentation treatment tank

Abstract

The present application relates to the field of wastewater treatment, and in particular to a spraying wastewater coagulation and sedimentation treatment tank, comprising an outer tank body with an open top and an inner tank body, wherein the inner tank body is placed within and in close contact with the outer tank body, the top surface of the outer tank body being higher than the top surface of the inner tank body, a discharge port being formed at the bottom of the inner tank body, a discharge trough being formed on the inner wall of the outer tank body, the discharge trough extending to the inner bottom wall of the outer tank body and communicating with the discharge port, a filter assembly for filtering anhydrous ferric orthophosphate out of wastewater being arranged at a position at the top of the inner tank body relative to the top of the discharge trough, and a water supply assembly for flowing wastewater containing anhydrous ferric orthophosphate into the discharge trough being mounted on the outer tank body. The present application has the effect of conveniently separating wastewater from anhydrous ferric orthophosphate.

Description

Technical Field

[0001] The present application relates to the field of wastewater treatment, and in particular to a spray wastewater coagulation and sedimentation treatment tank. Background Art

[0002] Spraying wastewater refers to wastewater generated during the spraying process. It primarily contains COD, ammonia nitrogen, total phosphorus, and oil, which pose a serious threat to the environment and human health. Therefore, spraying wastewater must be properly treated to ensure it meets relevant emission standards before it can be discharged into the environment.

[0003] Chemical precipitation can remove phosphorus from sewage. That is, inorganic metal salts are added to the sewage to react with the soluble salts in the sewage to form granular, insoluble substances, such as anhydrous ferric orthophosphate.

[0004] The more common way to clean the anhydrous ferric orthophosphate at the bottom of the sedimentation tank is to regularly drain the wastewater from the sedimentation tank, and then workers manually remove the anhydrous ferric orthophosphate deposited in the sedimentation tank. However, this cleaning method will cause the entire wastewater treatment system to stop operating in a short period of time. On the other hand, the cleaning process is relatively cumbersome and time-consuming, and there are obvious shortcomings. Summary of the Invention

[0005] In order to improve the problem of inconvenient cleaning of anhydrous ferric orthophosphate, the present application provides a spray wastewater coagulation and sedimentation treatment tank.

[0006] The present application provides a spraying wastewater coagulation and sedimentation treatment tank adopting the following technical solution:

[0007] A spraying wastewater coagulation and sedimentation treatment tank comprises an outer tank body with an open top and an inner tank body, the inner tank body is placed in the outer tank body and in close contact therewith, the top surface of the outer tank body is higher than the top surface of the inner tank body, a discharge port is provided at the bottom of the inner tank body, a discharge trough is provided on the inner wall of the outer tank body, the discharge trough extends to the inner bottom wall of the outer tank body and is communicated with the discharge port, a filter assembly for filtering anhydrous ferric orthophosphate out of wastewater is arranged at a position on the top of the inner tank body relative to the top of the discharge trough, and a water supply assembly for pouring wastewater containing anhydrous ferric orthophosphate into the discharge trough is mounted on the outer tank body.

[0008] By adopting the above technical solution, the chemically precipitated anhydrous ferric orthophosphate falls into the discharge trough through the discharge port, and then the water supply component flows the wastewater into the drainage trough. The fast-flowing wastewater drives the discharge trough to fall onto the filter component for filtration. The filter component filters the anhydrous ferric orthophosphate from the wastewater, thereby realizing the separation of wastewater and anhydrous ferric orthophosphate. The separation process not only does not require the wastewater treatment system to be suspended, but also does not require the treatment tank to be emptied, thereby facilitating separation.

[0009] Optionally, the water delivery component includes a supporting frame mounted on the top of the outer pool body, a motor electrically connected to the control system is placed on the ground, a screw is rotatably mounted between the output shaft of the motor and the supporting frame, a fixing frame is threadedly connected to the screw, and an elastic pressure bag with a hollow interior and an open bottom is arranged on the fixing frame, and the elastic pressure bag is located directly above the discharge port.

[0010] By adopting the above technical solution, the control system starts the motor, the output shaft of the motor drives the screw to rotate, and the fixed frame drives the elastic pressure bag to descend under the action of the thread. When the bottom of the elastic pressure bag hits the inner bottom wall of the inner pool body, the fixed frame continues to push the elastic pressure bag downward to deform, and the wastewater in the elastic pressure bag is squeezed into the discharge trough, thereby achieving rapid flow of wastewater through the discharge trough to bring the anhydrous ferric orthophosphate into the filter component.

[0011] Optionally, the bottom of the inner pool body is in an inverted cone shape.

[0012] By adopting the above technical solution, the inverted cone arrangement enables the chemically precipitated anhydrous ferric orthophosphate to converge toward the discharge port, thereby improving the completeness of the separation of anhydrous ferric orthophosphate from wastewater.

[0013] Optionally, the elastic pressure bag includes an inner bag and an outer bag in the shape of an inverted bowl, the outer bag is arranged outside the inner bag, and a plurality of elastic support ribs are arranged circumferentially on the inner wall of the inner bag. The fixed frame is connected to the outer bag, and there is a partition cavity between the inner bag and the top of the outer bag. A pressure water groove is opened on the outer wall of the inner bag, one end of the pressure water groove is communicated with the partition cavity, and the other end extends to the inner wall of the inner bag and faces the bottom wall of the inner pool body. A plurality of ventilation holes communicating with the partition cavity are opened on the top of the outer bag, and a sealing cover for covering the ventilation holes is arranged on the fixed frame.

[0014] By adopting the above technical solution, when the elastic pressure bag is immersed in the wastewater, the wastewater enters the compartment through the water pressure tank, and the air in the compartment is discharged from the vent. When the bottom of the elastic pressure bag contacts the inner bottom wall of the inner tank body, the inner bag remains stationary under the action of the elastic support ribs, while the outer bag first deforms downward under the action of the fixed frame, the cover contacts the outer bag and covers the vent, the volume of the compartment becomes smaller, and the wastewater inside it is quickly squeezed out through the water pressure tank. The strong water flow ejected from the water pressure tank impacts the inclined bottom wall of the inner tank body, thereby impacting all the anhydrous ferric orthophosphate remaining accumulated on the bottom wall of the inner tank body into the discharge port, thereby improving the completeness of the separation of anhydrous ferric orthophosphate and wastewater.

[0015] Optionally, filter cloths are arranged at positions on the top of the outer bag relative to the vent hole and on the inner wall of the inner bag relative to the water outlet end of the water pressure tank.

[0016] By adopting the above technical solution, the provision of the filter cloth can reduce the possibility of anhydrous ferric orthophosphate entering the compartment.

[0017] Optionally, the vent hole is close to the connection between the outer bag and the fixing frame.

[0018] By adopting the above technical solution, the sealing cover can quickly cover the vent hole, thereby reducing as much as possible the amount of wastewater discharged from the compartment through the vent hole before the sealing cover covers the vent hole.

[0019] Optionally, the filter assembly includes a filter cover with openings on both sides and one side connected to the discharge trough. A magnetic plate for adsorbing anhydrous ferric orthophosphate is placed between the two sides of the relative openings in the filter cover, and the magnetic plate is arranged in a wavy shape along the direction away from the top of the discharge trough.

[0020] By adopting the above technical solution, when the wastewater carrying anhydrous ferric orthophosphate flows from the discharge chute into the filter cover, it flows over the magnetic plate. Since the anhydrous ferric orthophosphate has a certain magnetic property, it is adsorbed on the magnetic plate, while the wastewater flows back to the inner tank body, thereby achieving the separation of wastewater and anhydrous ferric orthophosphate.

[0021] Optionally, the cross section of the filter cover is fan-shaped.

[0022] By adopting the above technical solution, the fan-shaped setting increases the filtration area of the magnetic plate, thereby reducing the liquid level when the wastewater flows through the magnetic plate, thereby improving the adsorption effect of the magnetic plate on anhydrous ferric orthophosphate and enhancing the separation quality.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The chemically precipitated anhydrous ferric orthophosphate falls into the discharge trough through the discharge port. Then the water supply component flows the wastewater into the drainage trough. The fast-flowing wastewater drives the discharge trough to fall into the filter component for filtration. The filter component filters the anhydrous ferric orthophosphate from the wastewater, thereby achieving the separation of wastewater and anhydrous ferric orthophosphate. The separation process not only does not require the wastewater treatment system to be suspended, but also does not require the treatment tank to be emptied, thereby facilitating separation;

[0025] 2. When the elastic pressure bag is immersed in the wastewater, the wastewater enters the compartment through the pressure water tank, and the air in the compartment is discharged from the vent. When the bottom of the elastic pressure bag contacts the inner bottom wall of the inner tank body, the inner bag remains stationary under the action of the elastic support ribs, while the outer bag first deforms downward under the action of the fixing frame. The cover contacts the outer bag and covers the vent. The volume of the compartment becomes smaller, and the wastewater inside is quickly squeezed out through the pressure water tank. The strong water flow ejected from the pressure water tank impacts the inclined bottom wall of the inner tank body, thereby impacting all the anhydrous ferric orthophosphate remaining on the bottom wall of the inner tank body into the discharge port, thereby improving the completeness of the separation of anhydrous ferric orthophosphate and wastewater;

[0026] 3. When the wastewater carrying anhydrous ferric orthophosphate flows from the discharge chute into the filter cover, it flows over the magnetic plate. Since anhydrous ferric orthophosphate has a certain magnetic property, it is adsorbed on the magnetic plate, while the wastewater flows back to the inner tank body, thereby achieving the separation of wastewater and anhydrous ferric orthophosphate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional view of an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of the outer bag, inner bag and elastic support ribs in the embodiment of the present application.

[0029] Figure 3 It is a structural diagram of the filter cover and the magnetic plate in the embodiment of the present application.

[0030] Explanation of the accompanying reference numerals: 1. Outer tank body; 101. Discharge trough; 2. Inner tank body; 201. Discharge port; 3. Carrying frame; 4. Motor; 5. Screw rod; 6. Fixing frame; 7. Elastic pressure bag; 71. Inner bag; 710. Water pressure trough; 72. Outer bag; 720. Vent; 8. Elastic supporting rib; 9. Partition; 10. Sealing cover; 11. Filter cloth; 12. Filter cover; 13. Magnetic plate. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The embodiment of the present application discloses a spraying wastewater coagulation and sedimentation treatment tank.

[0033] Reference Figure 1 The spray wastewater coagulation and sedimentation treatment tank includes an outer tank body 1 with an open top and an inner tank body 2. The inner tank body 2 is placed in the outer tank body 1 and is tightly attached to it. The top surface of the outer tank body 1 is higher than the top surface of the inner tank body 2.

[0034] The bottom of the inner tank body 2 is in an inverted cone shape and a discharge port 201 is opened at the center. The inner side wall of the outer tank body 1 is circumferentially opened with multiple discharge grooves 101, which extend to the inner bottom wall of the outer tank body 1 and communicate with the discharge port 201.

[0035] A filter assembly for filtering anhydrous ferric orthophosphate out of wastewater is arranged at the top of the inner tank body 2 relative to the top of the discharge trough 101, and a water supply assembly for pouring wastewater containing anhydrous ferric orthophosphate into the discharge trough 101 is mounted on the outer tank body 1.

[0036] Reference Figure 1 The water supply assembly includes a carrier frame 3 bolted to the top of the outer pool body 1, a motor 4 placed on the ground and electrically connected to the control system, and the motor 4 adopts a servo forward and reverse motor in the prior art.

[0037] A vertical screw rod 5 is rotatably mounted between the output shaft of the motor 4 and the carrier frame 3, and a T-shaped fixing frame 6 is threadedly connected to the screw rod 5. An elastic pressure bag 7 with a hollow interior and an open bottom is bonded to the bottom end of the fixing frame 6, and the elastic pressure bag 7 is located directly above the discharge port 201.

[0038] Reference Figure 1 and Figure 2 The elastic pressure chamber 7 comprises an inverted bowl-shaped inner chamber 71 and an outer chamber 72. The outer chamber 72 is bonded to the bottom of the fixing frame 6. The outer chamber 72 is positioned outside the inner chamber 71 and bonded to each other near the bottom. A cavity 9 is located between the tops of the inner chamber 71 and the outer chamber 72. Multiple elastic support ribs 8 made of elastic metal strips are bonded circumferentially to the inner wall of the inner chamber 71.

[0039] A pressure water groove 710 is opened on the outer wall of the inner capsule 71 in the circumferential direction. One end of the pressure water groove 710 is communicated with the compartment 9, and the other end extends to the inner wall of the inner capsule 71 and faces the bottom wall of the inner pool body 2. A plurality of ventilation holes 720 are opened on the top of the outer capsule 72 near the position where it is bonded to the fixing frame 6. The ventilation holes 720 are communicated with the compartment 9. A cover 10 for covering the ventilation holes 720 is welded on the outer wall of the fixing frame 6 near the bottom.

[0040] Reference Figure 1 and Figure 2 , the control system starts the motor 4, the output shaft of the motor 4 drives the screw rod 5 to rotate, and the fixing frame 6 drives the elastic pressure bag 7 to move downward under the action of the thread.

[0041] As the elastic pressure bladder 7 is immersed in wastewater, wastewater flows from the pressure tank 710 into the compartment 9, and air in the compartment 9 is discharged through the vent 720. Until the bottom of the elastic pressure bladder 7 contacts the bottom of the inner tank body 2, the fixing frame 6 continues to move downward. The outer bladder 72 first dents and deforms at the location where it is bonded to the fixing frame 6, while the elastic support ribs 8 support the inner bladder 71, maintaining its position.

[0042] Reference Figure 1 and Figure 2 A small amount of waste water in the compartment 9 is squeezed out from the vent 720 until the cover 10 contacts the outer bag 72 and covers the vent 720. At this time, the continued descent of the fixing frame 6 will cause the waste water in the compartment 9 to be squeezed out from the water pressure tank 710. The waste water in the compartment 9 is sprayed out to impact the anhydrous ferric orthophosphate remaining on the inclined bottom wall of the inner pool body 2, so that the anhydrous ferric orthophosphate all falls into the discharge port 201.

[0043] Reference Figure 1When the top of the outer bag 72 is deformed to contact the top of the inner bag 71, the fixing frame 6 pushes the top of the outer bag 72 and the inner bag 71 to sink downward simultaneously, so that the wastewater within the range of the elastic pressure bag 7 is squeezed into the discharge trough 101 and flows upward along the discharge trough 101, and finally flows from the top of the inner pool body 2 to the filter assembly for filtration.

[0044] Since the wastewater flows in the discharge chute 101 at a relatively fast and strong flow rate, the anhydrous ferric orthophosphate can be brought to the filter assembly, and then the anhydrous ferric orthophosphate is filtered out of the wastewater by the filter assembly.

[0045] Reference Figure 2 Filter cloth 11 is bonded to the top of the outer bag 72 relative to the vent 720 and the inner wall of the inner bag 71 relative to the water outlet of the water pressure tank 710. The filter cloth 11 blocks the anhydrous ferric orthophosphate precipitated in the wastewater, reducing the possibility of it entering the compartment 9.

[0046] Reference Figure 1 and Figure 3 The filter assembly includes a filter cover 12 with openings on both sides and one side connected to the discharge trough 101. A magnetic plate 13 for adsorbing anhydrous ferric orthophosphate is placed between the two opposite openings in the filter cover 12. The magnetic plate 13 is arranged in a wavy shape along the direction away from the top of the discharge trough 101.

[0047] Reference Figure 1 and Figure 3 Since anhydrous ferric orthophosphate has a certain degree of magnetism, when the wastewater containing anhydrous ferric orthophosphate flows over the magnetic plate 13, the anhydrous ferric orthophosphate will be adsorbed on the magnetic plate 13, and the wastewater will flow back into the inner pool body 2 from the filter cover 12.

[0048] In this way, when workers clean the anhydrous ferric orthophosphate, not only does the wastewater treatment system not need to be suspended, but the treatment tank does not need to be emptied. Workers can directly clean the anhydrous ferric orthophosphate on the magnetic plate 13 manually, which is easy to operate and saves time and effort.

[0049] Reference Figure 1 and Figure 3 The cross section of the filter cover 12 is fan-shaped, which increases the filtration area of the magnetic plate 13, thereby reducing the liquid level when the wastewater flows over the magnetic plate 13, thereby improving the adsorption effect of the magnetic plate 13 on anhydrous ferric orthophosphate and enhancing the separation quality.

[0050] The implementation principle of a spraying wastewater coagulation and sedimentation treatment tank in the embodiment of the present application is as follows:

[0051] The control system starts the motor 4, the output shaft of the motor 4 drives the screw rod 5 to rotate, and the fixing frame 6 drives the elastic pressure bag 7 to move downward under the action of the thread.

[0052] As the elastic pressure bladder 7 is immersed in wastewater, wastewater flows from the pressure tank 710 into the compartment 9, and air in the compartment 9 is discharged through the vent 720. Until the bottom of the elastic pressure bladder 7 contacts the bottom of the inner tank body 2, the fixing frame 6 continues to move downward. The outer bladder 72 first dents and deforms at the location where it is bonded to the fixing frame 6, while the elastic support ribs 8 support the inner bladder 71, maintaining its position.

[0053] A small amount of wastewater in the compartment 9 is squeezed out from the vent 720 until the cover 10 contacts the outer bag 72 and covers the vent 720. At this time, the continued descent of the fixing frame 6 will cause the wastewater in the compartment 9 to be squeezed out from the water pressure tank 710. The wastewater in the compartment 9 is sprayed out to impact the residual anhydrous ferric orthophosphate accumulated on the inclined bottom wall of the inner pool body 2, so that all the anhydrous ferric orthophosphate falls into the discharge port 201.

[0054] When the top of the outer bag 72 is deformed to contact the top of the inner bag 71, the fixing frame 6 pushes the top of the outer bag 72 and the inner bag 71 to sink downward simultaneously, so that the wastewater within the range of the elastic pressure bag 7 is squeezed into the discharge trough 101 and flows upward along the discharge trough 101 into the filter cover 12.

[0055] When the wastewater containing anhydrous ferric orthophosphate flows over the magnetic plate 13 , the anhydrous ferric orthophosphate will be adsorbed on the magnetic plate 13 , and the wastewater flows back into the inner tank body 2 through the filter cover 12 .

[0056] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A spraying wastewater coagulation and sedimentation treatment tank, characterized by: The invention comprises an outer tank body (1) with an open top and an inner tank body (2), wherein the inner tank body (2) is placed in the outer tank body (1) and is in close contact with the outer tank body (1), the top surface of the outer tank body (1) is higher than the top surface of the inner tank body (2), a discharge port (201) is provided at the bottom of the inner tank body (2), a discharge trough (101) is provided on the inner wall of the outer tank body (1), the discharge trough (101) extends to the inner bottom wall of the outer tank body (1) and is in communication with the discharge port (201), a filter assembly for filtering anhydrous ferric orthophosphate out of wastewater is arranged at a position on the top of the inner tank body (2) relative to the top of the discharge trough (101), and a water supply assembly for pouring wastewater containing anhydrous ferric orthophosphate into the discharge trough (101) is mounted on the outer tank body (1); The water supply component includes a support frame (3) mounted on the top of the outer pool body (1), a motor (4) electrically connected to the control system is placed on the ground, a screw rod (5) is rotatably mounted between the output shaft of the motor (4) and the support frame (3), a fixing frame (6) is threadedly connected to the screw rod (5), and an elastic pressure bag (7) with a hollow interior and an open bottom is arranged on the fixing frame (6), the elastic pressure bag (7) is located directly above the discharge port (201), the elastic pressure bag (7) includes an inner bag (71) and an outer bag (72) in the shape of an inverted bowl, a partition (9) is present between the tops of the inner bag (71) and the outer bag (72), and a plurality of vents (720) communicating with the partition (9) are opened on the top of the outer bag (72).

2. The spraying wastewater coagulation and sedimentation treatment tank according to claim 1, characterized in that: The bottom of the inner pool body (2) is in an inverted cone shape.

3. The spraying wastewater coagulation and sedimentation treatment tank according to claim 1, characterized in that: The outer bag (72) is sleeved on the outer side of the inner bag (71), and a plurality of elastic support ribs (8) are arranged circumferentially on the inner side wall of the inner bag (71). The fixing frame (6) is connected to the outer bag (72), and a pressure water groove (710) is provided on the outer side wall of the inner bag (71). One end of the pressure water groove (710) is communicated with the compartment (9), and the other end extends to the inner side wall of the inner bag (71) and faces the bottom wall of the inner pool body (2). A sealing cover (10) for covering the vent hole (720) is arranged on the fixing frame (6).

4. The spraying wastewater coagulation and sedimentation treatment tank according to claim 3, characterized in that: Filter cloths (11) are arranged at positions on the top of the outer bag (72) relative to the vent hole (720) and on the inner wall of the inner bag (71) relative to the water outlet end of the water pressure tank (710).

5. The spraying wastewater coagulation and sedimentation treatment tank according to claim 3, characterized in that: The vent hole (720) is located near the connection between the outer bag (72) and the fixing frame (6).

6. The spraying wastewater coagulation and sedimentation treatment tank according to claim 1, characterized in that: The filter assembly comprises a filter cover (12) with openings on both sides and one side connected to a discharge trough (101); a magnetic plate (13) for adsorbing anhydrous ferric orthophosphate is placed between two opposite openings in the filter cover (12); the magnetic plate (13) is arranged in a wave shape in a direction away from the top of the discharge trough (101).

7. The spraying wastewater coagulation and sedimentation treatment tank according to claim 6, characterized in that: The cross section of the filter cover (12) is arranged in a fan shape.

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