Membrane biological reaction tank

Abstract

The utility model relates to a membrane biological reaction tank, which belongs to the technical field of sewage treatment equipment and comprises a reaction tank body, a partition plate is fixedly connected between the inner walls of the reaction tank body, the top end of the reaction tank body is fixedly connected with a fixed box, and a fixed pipe is rotatably connected inside the reaction tank body. The sewage treatment device has the beneficial effects that a driving gear can be driven to rotate through rotation of an output shaft of a servo motor, then a driven gear can be driven to rotate, meanwhile, a fixed pipe can be driven to rotate, then a supporting plate can be driven to stir sewage, and stirring blades can be driven to rotate on the basis of revolution of the supporting plate; the stirring effect on the sewage is further improved, so that microorganisms and macromolecular solutes in the sewage are not easy to precipitate due to relatively slow flow speed of the sewage, and the ultraviolet lamp tube is driven to rotate in the rotating process of the fixed tube, so that the irradiation range of the ultraviolet lamp tube is wider and more uniform, and the treatment effect on the sewage is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a membrane biological reaction tank. Background Art

[0002] MBR membrane bioreactor is a new type of sewage treatment process that combines bioreactor and membrane separation process. Microorganisms and macromolecular solutes are retained by the membrane, thereby replacing the sedimentation tank to complete the separation process from the treated water. The biggest feature is the use of membrane components to replace the secondary sedimentation tank in traditional biological treatment.

[0003] After searching, a Chinese patent discloses a membrane bioreactor for industrial wastewater treatment (authorization announcement number CN211644977U), including a reaction tank body, a water inlet pipe is fixedly connected to the top of the reaction tank body, a first baffle is fixedly connected between the inner walls of the reaction tank body, a filter plate is fixedly connected to one side of the first baffle and the inner wall of the reaction tank body, and a discharge pipe is fixedly connected to one side of the reaction tank body. Although the patented technology can filter some larger fixed substances in the sewage by setting the first filter plate, the first baffle and the second baffle are used to separate and treat the sewage. When the blower is started, the oxygen content outside is first filtered through the filter ash layer, and then the oxygen content enters the aeration pipe through the cooperation of the air inlet pipe and the air outlet pipe. Through the use of the aeration pipe, the oxygen content reacts with water, which can accelerate the absorption of nutrient-rich substances in the water by aquatic plants, thereby degrading the sewage.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that the chamber below the box in the above membrane biological reactor lacks anti-sedimentation function, which causes microorganisms and macromolecular solutes in the sewage to easily precipitate due to the slow sewage flow rate, affecting the treatment effect. In addition, the ultraviolet light irradiation is not uniform, which may affect the sewage treatment effect. Utility Model Content

[0005] In view of the problems in the prior art: the chamber below the box in the above-mentioned membrane biological reactor lacks anti-sedimentation function, which causes microorganisms and macromolecular solutes in sewage to easily precipitate due to the slow sewage flow rate, affecting the treatment effect, and the ultraviolet lamp irradiation is not uniform, which may affect the sewage treatment effect. The main purpose of the utility model is to provide a membrane biological reactor.

[0006] The technical solution of the utility model is as follows: a membrane biological reaction tank comprises a reaction tank body, a partition plate is fixedly connected between the inner walls of the reaction tank body, a fixed box is fixedly connected to the top of the reaction tank body, a fixed tube is rotatably connected to the inside of the reaction tank body, an internal array of the fixed tube has discharge holes, a support plate is equidistantly fixedly connected to the outside of the fixed tube, a stirring blade is rotatably connected between the two support plates, an ultraviolet lamp is fixedly installed between the two support plates and on one side of the stirring blade, the top of the fixed tube passes through the fixed box and is fixedly connected to a driven gear, a servo motor is fixedly installed on the top of the fixed box, the output shaft of the servo motor extends to the inside of the fixed box and is fixedly connected to a driving gear, and the driving gear is meshingly connected to the driven gear.

[0007] The rotation of the output shaft of the servo motor can drive the rotation of the driving gear, and then drive the rotation of the driven gear, and at the same time drive the rotation of the fixed pipe. The discharge hole is large and will not cause blockage of sewage impurities, so it can drive the support plate to stir the sewage, and on the basis of the revolution of the support plate, it can drive the stirring blade to rotate, further improving the stirring effect of the sewage.

[0008] As a preferred embodiment, an MRB membrane reactor is fixedly installed on the inner wall of the reaction tank body, aeration pipes are fixedly connected to the bottom end of the inner wall of the reaction tank body at equal distances, aeration heads are fixedly connected to the top ends of the aeration pipes at equal distances, an aerator is fixedly connected to the outside of the reaction tank body, and one end of the aeration pipes extends to the interior of the aerator.

[0009] By adopting the above technical solution, oxygenation is started through the aeration head on the aeration pipe, and the sewage is separated and treated by the MRB membrane reactor, and then clean water can be extracted.

[0010] As a preferred embodiment, a half plate is fixedly connected to the interior of the reaction pool body and on one side of the partition plate, three filter plates are fixedly connected between the half plate and the partition plate, a water pump 2 is fixedly installed on the top of the reaction pool body, the interior of the reaction pool body is divided into a stirring chamber and a reaction chamber by the partition plate, the input end of the water pump 2 extends to the stirring chamber, and the output end of the water pump 2 extends to the interior of the reaction chamber.

[0011] By adopting the above technical solution and setting up three filter screens, the sewage can be filtered multiple times, so that the filtering effect of the sewage is better.

[0012] As a preferred embodiment, a water pump 1 is fixedly installed on the top of the reaction tank body, the input end of the water pump 1 extends to the interior of the reaction tank body, and the output end of the water pump 1 is connected to the external anaerobic tank.

[0013] By adopting the above technical solution and setting a water pump, purified clean water can be extracted.

[0014] As a preferred implementation, the radius of the discharge hole is larger than the mesh size of the filter mesh, and the radius ratio of the driving gear to the driven gear is three to one.

[0015] By adopting the above technical solution, the speed ratio of the gear can be improved, so that the stirring blade and the support plate have a better stirring effect on the sewage.

[0016] As a preferred implementation, a rotary joint is provided at the top end of the fixed pipe, and a flange is fixedly connected to the top end of the fixed pipe and located above the rotary joint.

[0017] By adopting the above technical solution and setting the flange, the sewage discharge pipe can be connected.

[0018] As a preferred embodiment, a PLC controller is fixedly installed on the outer side of the reaction cell body, and a visual window is provided on the outer side of the reaction cell body.

[0019] By adopting the above technical solution and setting the PLC controller, the electrical equipment in the reaction tank body can be automatically controlled.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are:

[0021] 1. In the utility model, the rotation of the output shaft of the servo motor can drive the rotation of the driving gear, and then drive the rotation of the driven gear, and at the same time drive the rotation of the fixed pipe, and the discharge hole is large, which will not cause clogging of sewage impurities, and then drive the support plate to stir the sewage, and on the basis of the revolution of the support plate, the stirring blade will be driven to rotate, further improving the stirring effect of the sewage, making it difficult for microorganisms and macromolecular solutes in the sewage to precipitate due to the slow flow rate of the sewage, and in the process of the fixed pipe rotating, it will drive the rotation of the ultraviolet lamp, so that the irradiation range of the ultraviolet lamp is wider and more uniform, thereby improving the treatment effect of sewage.

[0022] 2. In the utility model, the membrane biological reaction pool is small in size, saves floor space, and saves construction costs. The equipment can be arranged underground, occupying very little surface area.

[0023] 3. In the utility model, the material of the membrane biological reactor is stainless steel, which has good compression resistance and deformation resistance. By arranging an aeration structure and a stirring structure in the pool, the flow of sewage in the pool is more uniform, dead corners are reduced, thereby reducing membrane pollution.

[0024] 4. In the utility model, the membrane biological reactor adopts an intelligent control device with a PLC controller as the core, which can control the electrical equipment in the reactor body, and realize efficient and stable operation of the MBR pool and reduce operating costs through real-time monitoring and automatic adjustment of various operating parameters in the pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0027] Figure 3 For this utility model Figure 2 The enlarged view of point A in the middle;

[0028] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle.

[0029] Legend: 1. Reaction tank body; 2. PLC controller; 3. Aerator; 4. Water pump 1; 5. Water pump 2; 6. Fixed box; 7. Servo motor; 8. Flange; 9. Rotary joint; 10. MRB membrane reactor; 11. Aeration pipe; 12. Driving gear; 13. Driven gear; 14. Fixed pipe; 15. Stirring blade; 16. Ultraviolet lamp; 17. Support plate; 18. Filter; 19. Partition plate; 20. Half plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0031] Reference Figure 1-4The membrane biological reaction tank comprises a reaction tank body 1, a partition plate 19 is fixedly connected between the inner walls of the reaction tank body 1, a fixed box 6 is fixedly connected to the top of the reaction tank body 1, a fixed tube 14 is rotatably connected inside the reaction tank body 1, the internal array of the fixed tube 14 has discharge holes, support plates 17 are equidistantly fixedly connected to the outside of the fixed tube 14, a stirring blade 15 is rotatably connected between the two support plates 17, an ultraviolet lamp tube 16 is fixedly installed between the two support plates 17 and on one side of the stirring blade 15, the top of the fixed tube 14 passes through the fixed box 6 and is fixedly connected to a driven gear 13, a servo motor 7 is fixedly installed on the top of the fixed box 6, the output shaft of the servo motor 7 extends to the inside of the fixed box 6 and is fixedly connected to a driving gear 12, and the driving gear 12 is meshed with the driven gear 13.

[0032] When in use, the reaction tank body 1 is divided into two chambers by the partition plate 19, and the rotation of the output shaft of the servo motor 7 can drive the rotation of the driving gear 12, and then drive the rotation of the driven gear 13, and at the same time drive the rotation of the fixed tube 14, and the discharge hole is large, which will not cause blockage of sewage impurities, and then drive the support plate 17 to stir the sewage, and on the basis of the revolution of the support plate 17, the stirring blade 15 will be driven to rotate, further improving the stirring effect on the sewage, making it difficult for microorganisms and macromolecular solutes in the sewage to precipitate due to the slow flow rate of the sewage, and during the rotation of the fixed tube 14, the ultraviolet lamp tube 16 will be driven to rotate, so that the irradiation range of the ultraviolet lamp tube 16 can be wider and more uniform, thereby improving the treatment effect on the sewage.

[0033] Reference Figure 2 An MRB membrane reactor 10 is fixedly installed on the inner wall of the reaction tank body 1, and aeration pipes 11 are fixedly connected to the bottom end of the inner wall of the reaction tank body 1 at equal distances, and aeration heads are fixedly connected to the top ends of the aeration pipes 11 at equal distances. An aerator 3 is fixedly connected to the outer side of the reaction tank body 1, and one end of the aeration pipe 11 extends to the interior of the aerator 3.

[0034] The gas is injected into the reaction tank body 1 through the aeration pipe 11 by the aerator 3, and oxygenation is started through the aeration head on the aeration pipe 11, and the sewage is separated and treated by the MRB membrane reactor 10, and then clean water can be extracted.

[0035] Reference Figure 2 A half plate 20 is fixedly connected to the interior of the reaction pool body 1 and located on one side of the partition plate 19, and three filter plates are fixedly connected between the half plate 20 and the partition plate 19. A water pump 25 is fixedly installed on the top of the reaction pool body 1. The interior of the reaction pool body 1 is divided into a stirring chamber and a reaction chamber by the partition plate 19. The input end of the water pump 25 extends to the stirring chamber, and the output end of the water pump 25 extends to the interior of the reaction chamber.

[0036] By setting the water pump 25, the sewage in the stirring chamber can be pumped into the interior of the reaction chamber, so that the falling sewage can pass through the three filter nets 18. By setting the three filter nets 18, the sewage can be filtered multiple times, so that the filtering effect of the sewage is better.

[0037] Reference Figure 2 A water pump 4 is fixedly installed on the top of the reaction tank body 1. The input end of the water pump 4 extends to the interior of the reaction tank body 1, and the output end of the water pump 4 is connected to the external anaerobic tank. Through the setting of the water pump 4, the purified clean water can be extracted.

[0038] Reference Figure 2 The radius of the discharge hole is larger than the hole size of the filter screen 18, and the radius ratio of the driving gear 12 to the driven gear 13 is three to one, which can increase the speed ratio of the gears, so that the stirring blade 15 and the support plate 17 have a better stirring effect on the sewage.

[0039] Reference Figure 1 A rotary joint 9 is provided at the top of the fixed pipe 14, and a flange 8 is fixedly connected to the top of the fixed pipe 14 and above the rotary joint 9. Through the setting of the flange 8, the sewage discharge pipe can be connected.

[0040] Reference Figure 1 A PLC controller 2 is fixedly installed on the outside of the reaction tank body 1, and a visual window is provided on the outside of the reaction tank body 1. Through the setting of the PLC controller 2, the electrical equipment in the reaction tank body 1 can be automatically controlled, and through the setting of the visual window, the sewage treatment process in the reaction tank body 1 can be clearly seen.

[0041] Working principle: The reaction tank body 1 is divided into two chambers by the partition plate 19, and the rotation of the output shaft of the servo motor 7 can drive the rotation of the driving gear 12, and then drive the rotation of the driven gear 13, and at the same time drive the rotation of the fixed pipe 14, and the discharge hole is large, which will not cause clogging of sewage impurities, and then drive the support plate 17 to stir the sewage, and on the basis of the revolution of the support plate 17, it will drive the stirring blade 15 to rotate, further improving the stirring effect of the sewage, making it difficult for microorganisms and macromolecular solutes in the sewage to precipitate due to the slow flow rate of the sewage, and in the process of the rotation of the fixed pipe 14 It drives the rotation of the ultraviolet lamp 16, so that the irradiation range of the ultraviolet lamp 16 is wider and more uniform, thereby improving the treatment effect of sewage. Through the setting of the water pump 25, the sewage in the stirring chamber can be pumped into the interior of the reaction chamber, so that the falling sewage can pass through the three filter screens 18. Through the setting of the three filter screens 18, the sewage can be filtered multiple times. Through the aerator 3, the gas is injected into the reaction tank body 1 through the aeration pipe 11, and oxygenation is started through the aeration head on the aeration pipe 11. The MRB membrane reactor 10 performs sewage separation treatment, and then the purified clean water can be extracted through the water pump 4.

[0042] The above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A membrane biological reactor, comprising a reactor body (1), characterized in that: A partition plate (19) is fixedly connected between the inner walls of the reaction pool body (1); a fixed box (6) is fixedly connected to the top of the reaction pool body (1); a fixed tube (14) is rotatably connected to the interior of the reaction pool body (1); an array of discharge holes is provided inside the fixed tube (14); a support plate (17) is equidistantly fixedly connected to the outside of the fixed tube (14); a stirring blade (15) is rotatably connected between two support plates (17); an ultraviolet lamp tube (16) is fixedly installed between the two support plates (17) and on one side of the stirring blade (15); the top of the fixed tube (14) passes through the fixed box (6) and is fixedly connected to a driven gear (13); a servo motor (7) is fixedly installed to the top of the fixed box (6); an output shaft of the servo motor (7) extends to the interior of the fixed box (6) and is fixedly connected to a driving gear (12); the driving gear (12) is meshingly connected to the driven gear (13).

2. The membrane bioreactor according to claim 1, characterized in that: An MRB membrane reactor (10) is fixedly mounted on the inner wall of the reaction tank body (1); aeration pipes (11) are fixedly connected to the bottom end of the inner wall of the reaction tank body (1) at equal intervals; aeration heads are fixedly connected to the top ends of the aeration pipes (11) at equal intervals; an aerator (3) is fixedly connected to the outside of the reaction tank body (1); and one end of the aeration pipe (11) extends to the interior of the aerator (3).

3. The membrane bioreactor according to claim 1, characterized in that: A half plate (20) is fixedly connected inside the reaction pool body (1) and located on one side of the partition plate (19); three filter plates are fixedly connected between the half plate (20) and the partition plate (19); a second water pump (5) is fixedly installed on the top of the reaction pool body (1); the interior of the reaction pool body (1) is divided into a stirring chamber and a reaction chamber by the partition plate (19); the input end of the second water pump (5) extends to the stirring chamber, and the output end of the second water pump (5) extends to the interior of the reaction chamber.

4. The membrane bioreactor according to claim 1, characterized in that: A water pump 1 (4) is fixedly mounted on the top of the reaction tank body (1); the input end of the water pump 1 (4) extends into the interior of the reaction tank body (1); and the output end of the water pump 1 (4) is connected to an external anaerobic tank.

5. The membrane bioreactor according to claim 1, characterized in that: The radius of the discharge hole is larger than the hole size of the filter screen (18), and the radius ratio of the driving gear (12) to the driven gear (13) is three to one.

6. The membrane bioreactor according to claim 1, characterized in that: A rotating joint (9) is provided at the top end of the fixed tube (14), and a flange (8) is fixedly connected to the top end of the fixed tube (14) and located above the rotating joint (9).

7. The membrane bioreactor according to claim 1, characterized in that: A PLC controller (2) is fixedly mounted on the outside of the reaction pool body (1), and a visual window is provided on the outside of the reaction pool body (1).

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