Airlift type circulation immobilized bio-membrane reactor

Abstract

The invention provides an airlift type circulation immobilized bio-membrane reactor, and relates to the technical field of bio-membrane reactors, a main body of a liquid discharge pipe is of an L-shaped structure, and an electromagnetic valve is mounted in the liquid discharge pipe, so that the problem that most carriers mounted in the existing liquid discharge pipe are of fixed structures, so that the liquid discharge pipe is inconvenient to use is solved. The problem that the surface area of a carrier, namely the surface area of a biological membrane, cannot be adjusted according to the quantity of sewage to be treated at present, so that the sewage treatment efficiency is influenced is solved. The adjusting assembly mounted at the bottom end of the bracket is started to lift the connecting plate B and the connecting plate A up, so that the surface area of a carrier currently arranged in the seat body is quickly expanded and adjusted; according to the design, the problem that a traditional carrier cannot be expanded and adjusted according to the current sewage treatment capacity when a biological membrane is formed, so that the sewage treatment efficiency is relatively poor is solved, and the aim of being more practical is achieved.

Description

Technical Field

[0001] This invention relates to the field of biofilm reactor technology, and in particular to an airlift-type circulating immobilized biofilm reactor. Background Technology

[0002] In the fields of wastewater treatment and water resource reuse, membrane bioreactors are a new type of water treatment technology that combines membrane separation units and biological treatment units. When treating wastewater, a closed container is typically selected, and a carrier is filled into the container to support the biofilm for subsequent reaction operations. However, in the use of existing reactors, the carriers installed inside are mostly fixed structures, which makes it impossible to adjust the surface area of ​​the carrier, i.e., the surface area of ​​the biofilm, according to the different volumes of wastewater being treated, thus affecting the wastewater treatment efficiency.

[0003] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided an airlift-type circulating immobilized biofilm reactor in order to achieve a more practical purpose. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an airlift-type circulating immobilized biofilm reactor. This solves the problem that existing reactors, due to their fixed internal carriers, cannot adjust the surface area of ​​the carrier (i.e., the surface area of ​​the biofilm) according to the varying volume of wastewater being treated, thus affecting wastewater treatment efficiency.

[0005] This invention provides an airlift-type circulating immobilized biofilm reactor, specifically comprising: a treatment tank, the main body of which is a tubular structure with an open top, and legs fixedly connected to the bottom end face of the treatment tank. The main body of the legs is a cylindrical structure, and there are three legs in total. The three legs are fixedly connected to the bottom end face of the treatment tank in a circular array, and each of the three legs has a foot fixedly connected to its bottom end face. The cross-sectional diameter of the foot is larger than that of the leg. The foot and the legs together form a support structure for the treatment tank. A drain pipe is fixedly connected to the bottom end of the treatment tank. The main body of the drain pipe is an L-shaped structure, and a solenoid valve is installed inside the drain pipe. A flange is fixedly connected to the front end face of the longitudinal component in the drain pipe.

[0006] Furthermore, an adjustment component is installed on the bottom surface of the transverse member of the bracket, and a mounting frame is installed on the bottom surface of the adjustment component. The main body of the mounting frame is a rectangular frame structure, and a motor is installed inside the mounting frame. The motor is located inside the mounting frame, and an output shaft is provided at the bottom of the motor. The output shaft passes downward through the mounting frame and protrudes from the mounting frame. A connecting plate B is installed on the output shaft at the bottom of the motor. The structure of the connecting plate B is the same as that of the connecting plate A. When the connecting plate B is rotated to the position where its longitudinal member faces directly forward, the connecting plate B is in a state of engagement with the connecting plate A, which is fixedly connected to the top surface of the carrier.

[0007] Furthermore, the front end of the processing tank is provided with a flat surface, on which a controller is fixedly connected. A control screen is embedded in the front end of the controller. The control screen is a touch control structure. A flat surface is opened on the left side of the outer periphery of the processing tank. An air supply pump is provided on this flat surface. The air supply pump is used to draw air from the outside of the processing tank. The air supply pump and the processing tank together form an air supply device.

[0008] Furthermore, a base is fixedly connected inside the treatment tank. The main body of the base is a ring structure and is located directly above the treatment tank. A carrier is fixedly connected inside the base. The carrier is used to support the biofilm and has a telescopic structure. A connecting plate A is fixedly connected to the top surface of the carrier. The main body of the connecting plate A is an L-shaped structure. The longitudinal members of the connecting plate A are installed perpendicular to the top surface of the carrier, and the transverse members of the connecting plate A are arranged parallel to the carrier.

[0009] Furthermore, a cover plate is installed on the top surface of the processing tank. The main body of the cover plate has an arc-shaped top surface, and an installation plate A is fixedly connected to the outer side of the cover plate. The structure of the installation plate A is the same as that of the installation plate B. The interior of the installation plate A also has installation holes arranged in a ring array. Fixing bolts are installed inside the installation holes, and six fixing bolts are arranged in a ring array for installing the installation plate A and the installation plate B.

[0010] Furthermore, a mounting plate B is fixedly connected to the outer circumferential surface of the processing tank. The main body of the mounting plate B is circular, and the mounting plate B is fixedly connected to the top position of the outer circumferential surface of the processing tank. The diameter of the mounting plate B is larger than the diameter of the processing tank. The interior of the mounting plate B has through holes arranged in a ring array. These through holes are mounting holes. The main body of the mounting holes is a bidirectional through structure on both the upper and lower sides. The mounting holes and the mounting plate B together form the mounting structure.

[0011] Furthermore, an inlet pipe is fixedly connected to the top surface of the cover plate, which is used to supply sewage into the device. A flange is also fixedly connected to the outside of the inlet pipe. An outlet pipe is fixedly connected to the top surface of the cover plate, which is used to exhaust air from the inside of the cover plate. A bracket is fixedly connected to the top surface of the cover plate. The main body of the bracket is a U-shaped structure with an open bottom. The bracket and the cover plate together form a load-bearing structure.

[0012] Furthermore, a distribution pipe is fixedly connected to the bottom surface inside the treatment tank. The main body of the distribution pipe is a ring structure, and the diameter of the distribution pipe is smaller than the diameter of the treatment tank. The distribution pipe is connected to the air supply pump located outside the treatment tank through a flexible hose. The top of the outer circumferential surface of the distribution pipe has through holes arranged in a ring array. The distribution pipe has an internal hollow structure, and the through holes are spray holes that are connected to the distribution pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In this invention, a distribution pipe is installed inside the treatment tank. When the device is in use, an air supply pump installed outside the treatment tank is activated to supply air to the distribution pipe inside the treatment tank. The air is then discharged through the nozzles in the distribution pipe to quickly pump air into the wastewater in the treatment tank. This allows for rapid aeration of the wastewater. Compared to traditional wastewater treatment methods, which suffer from low aeration efficiency due to the lack of an effective circulating airlift structure, this design achieves rapid aeration of the wastewater in the treatment tank through the annular distribution pipe and the nozzles inside. Furthermore, the combination with the carrier and the biofilm on the carrier can further accelerate the wastewater treatment efficiency.

[0015] 2. In this invention, by providing a rotatable and adjustable connecting plate, when it is necessary to expand and adjust the surface area of ​​the carrier set in the base, the motor installed in the mounting frame can be started to drive the connecting plate B to rotate. After the connecting plate B is engaged with the connecting plate A currently set on the top surface of the carrier, the adjustment component installed at the bottom of the support is simultaneously activated to lift the connecting plate B and the connecting plate A, thereby achieving a rapid expansion and adjustment of the surface area of ​​the carrier currently set in the base. Compared with the traditional carrier, which cannot expand and adjust according to the current sewage treatment volume when forming a biofilm, which easily leads to poor sewage treatment efficiency, this design achieves a more practical purpose. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0017] In the attached diagram:

[0018] Figure 1 A schematic diagram of the front side view of a reactor in a partially cut-off state according to an embodiment of the present invention is shown;

[0019] Figure 2 A top-side view of a partially sectional structure of the reactor according to an embodiment of the present invention is shown.

[0020] Figure 3 A schematic diagram of the reactor structure in a cross-sectional state according to an embodiment of the present invention is shown in the diagram.

[0021] Figure 4 A schematic diagram of the assembly structure of the reactor according to an embodiment of the present invention is shown;

[0022] Figure 5 A schematic diagram of the assembly structure of the treatment tank and mounting plate B of the reactor according to an embodiment of the present invention is shown;

[0023] Figure 6 A schematic diagram of the assembly structure of the motor and connecting plate B of the reactor according to an embodiment of the present invention is shown;

[0024] Figure 7 A reactor according to an embodiment of the present invention is shown. Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 8 A reactor according to an embodiment of the present invention is shown. Figure 2 Enlarged structural diagram at point B.

[0026] List of reference numerals

[0027] 1. Processing tank; 2. Support leg; 3. Support foot; 4. Controller; 5. Air supply pump; 6. Distribution pipe; 7. Spray nozzle; 8. Base; 9. Carrier; 10. Connecting plate A; 11. Mounting hole; 12. Cover plate; 13. Mounting plate A; 14. Fixing bolt; 15. Liquid inlet pipe; 16. Air outlet pipe; 17. Bracket; 18. Adjustment component; 19. Mounting bracket; 20. Motor; 21. Connecting plate B; 22. Mounting plate B; 23. Drain pipe. Detailed Implementation

[0028] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0029] Example 1:

[0030] As attached Figure 1 To be continued Figure 8 As shown:

[0031] This invention provides an airlift-type circulating immobilized biofilm reactor, comprising: a treatment tank 1, the main body of which is a tubular structure with an open top, and a support leg 2 fixedly connected to the bottom end face of the treatment tank 1. The support leg 2 has a cylindrical main body and three supports 2 arranged in a ring array fixedly connected to the bottom end face of the treatment tank 1. Each of the three support legs 2 has a foot 3 fixedly connected to its bottom end face. The cross-sectional diameter of the foot 3 is larger than that of the support leg 2. The foot 3 and the support leg 2 together form a support structure for the treatment tank 1. A drain pipe 23 is fixedly connected to the bottom end of the treatment tank 1. The main body of the drain pipe 23 has an L-shaped structure, and a solenoid valve is installed inside the drain pipe 23. The front end face of the longitudinal component in the drain pipe 23 is fixed with... A flange is connected to the bracket 17. An adjustment component 18 is installed on the bottom surface of the transverse component in the bracket 17. A mounting bracket 19 is installed on the bottom surface of the adjustment component 18. The main body of the mounting bracket 19 is a rectangular frame structure. A motor 20 is installed inside the mounting bracket 19. The motor 20 is located inside the mounting bracket 19. An output shaft is provided at the bottom of the motor 20. The output shaft passes downward through the mounting bracket 19 and protrudes from the mounting bracket 19. A connecting plate B21 is installed on the output shaft at the bottom of the motor 20. The structure of the connecting plate B21 is the same as that of the connecting plate A10. When the connecting plate B21 is rotated to the position where its longitudinal component faces forward, the connecting plate B21 is in a state of being engaged with the connecting plate A10 which is fixedly connected to the top surface of the carrier 9.

[0032] The top surface of the treatment tank 1 is equipped with a cover plate 12. The main body of the cover plate 12 has an arc-shaped top surface. An installation plate A13 is also fixedly connected to the outside of the cover plate 12. The structure of the installation plate A13 is the same as that of the installation plate B22. The interior of the installation plate A13 is also provided with mounting holes 11 in a ring array. Fixing bolts 14 are installed inside the mounting holes 11. Six fixing bolts 14 are arranged in a ring array and are used to install the installation plate A13 and the installation plate B22. An inlet pipe 15 is fixedly connected to the top surface of the cover plate 12. The inlet pipe 15 is used to supply sewage into the device. A flange is also fixedly connected to the outside of the inlet pipe 15. An outlet pipe 16 is fixedly connected to the top surface of the cover plate 12. The outlet pipe 16 is used to exhaust air from the inside of the cover plate 12. A bracket 17 is fixedly connected to the top surface of the cover plate 12. The main body of the bracket 17 is a U-shaped structure with an open bottom. The bracket 17 and the cover plate 12 together form a load-bearing structure.

[0033] In use: During the sewage treatment process, the treatment tank 1 can be placed on the ground for support using the legs 2 and feet 3 fixedly connected to its bottom end. Simultaneously, the drain pipe 23 installed on the bottom end of the treatment tank 1 can be connected to the front drain pipe, and the cover plate 12 can be assembled on top of the treatment tank 1. Then, the fixing bolt 14 can be passed through the mounting holes 11 provided in the mounting plates A13 and B22 to quickly fix the treatment tank 1 and the cover plate 12. When in use, the controller 4 set on the front end of the treatment tank 1 can be turned on simultaneously, and the sewage from the outside can be supplied to the inside of the treatment tank 1 through the inlet pipe 15 set on the top end of the cover plate 12.

[0034] Example 2:

[0035] Based on the airlift-type circulating immobilized biofilm reactor provided in the first embodiment, which can achieve rapid supply of sewage, but still cannot achieve aeration treatment of sewage, the following technical solution is also provided.

[0036] The treatment tank 1 is internally fixedly connected to a base 8, the main body of which is an annular structure and located directly above the treatment tank 1. A carrier 9 is fixedly connected inside the base 8, used to support the biofilm. The main body of the carrier 9 is a telescopic structure. A connecting plate A10 is fixedly connected to the top surface of the carrier 9. The main body of the connecting plate A10 is an L-shaped structure, with its longitudinal members perpendicular to the top surface of the carrier 9 and its transverse members parallel to the carrier 9. An installation plate B22 is fixedly connected to the outer circumferential surface of the treatment tank 1. The main body of the installation plate B22 is circular and is fixedly connected to the top of the outer circumferential surface of the treatment tank 1. The diameter of the installation plate B22 is larger than the diameter of the treatment tank 1. The installation plate B22 has through holes arranged in a annular array inside, which are installation holes 11. The main body of the installation holes 11 is a bidirectional through-structure on both the top and bottom sides, and the installation holes 11 and the installation plate B22 together form the installation structure.

[0037] In use, when water enters the interior of the treatment tank 1, it can simultaneously perform rapid filtration using the biofilm formed on the surface of the carrier 9 on the top surface of the base 8. After filtration, the water can fall down to the bottom of the treatment tank 1 and be quickly drained using the drain pipe 23 located at the bottom of the treatment tank 1. When draining, the solenoid valve installed in the drain pipe 23 can be opened to quickly start the draining operation, making the draining process smoother.

[0038] Example 3:

[0039] Based on the airlift-type circulating immobilized biofilm reactor provided in the second embodiment, which can achieve aeration treatment of wastewater, it still cannot adjust the surface area of ​​the biofilm. Therefore, the following technical solution is also provided.

[0040] The processing tank 1 has a flat surface at its front end, on which a controller 4 is fixedly connected. A control screen is embedded at the front end of the controller 4. The control screen is a touch control structure. A flat surface is also provided on the left side of the outer periphery of the processing tank 1. An air supply pump 5 is provided on this flat surface. The air supply pump 5 is used to draw air from the outside of the processing tank 1. The air supply pump 5 and the processing tank 1 together form an air supply device. A distribution pipe 6 is fixedly connected to the bottom surface inside the processing tank 1. The main body of the distribution pipe 6 is a ring structure, and the diameter of the distribution pipe 6 is smaller than the diameter of the processing tank 1. The distribution pipe 6 is connected to the air supply pump 5 located on the outside of the processing tank 1 through a flexible hose. The top of the outer periphery of the distribution pipe 6 has through holes arranged in a ring array. The distribution pipe 6 has an internal hollow structure, and the through holes are spray holes 7, which are connected to the distribution pipe 6.

[0041] In use, the air supply pump 5 located on the left side of the outer periphery of the treatment tank 1 can be turned on. When the air supply pump 5 is turned on, it can simultaneously supply air to the distribution pipe 6 located inside the treatment tank 1. When the external airflow enters the distribution pipe 6, the gas can be quickly sprayed into the treatment tank 1 to form a circulation by using multiple nozzles 7 on the top surface of the distribution pipe 6, thereby achieving rapid gas diversion. The gas can be quickly discharged by using the air outlet pipe 16 located on the top surface of the cover plate 12. When it is necessary to adjust the surface area of ​​the carrier 9, i.e. the surface area of ​​the biofilm, the connecting plate A10 can be lifted by activating the adjustment component 18 installed in the support 17 to achieve rapid adjustment.

Claims

1. An airlift-type circulating immobilized biofilm reactor, characterized in that, include: The processing tank (1) has a tubular structure with an open top. The bottom surface of the processing tank (1) is fixedly connected to a support leg (2). The support leg (2) has a cylindrical structure and three support legs (2) are arranged in a ring array and fixedly connected to the bottom surface of the processing tank (1). The bottom surface of the three support legs (2) is fixedly connected to a foot (3). The cross-sectional diameter of the foot (3) is larger than that of the support leg (2). The foot (3) and the support leg (2) together form a support structure for the processing tank (1). The bottom of the processing tank (1) is fixedly connected to a drain pipe (23). The main body of the drain pipe (23) is an L-shaped structure. A solenoid valve is installed inside the drain pipe (23). A flange is fixedly connected to the front end of the longitudinal component in the drain pipe (23).

2. The airlift-type circulating immobilized biofilm reactor as described in claim 1, characterized in that: The front end of the processing tank (1) is provided with a flat surface, on which a controller (4) is fixedly connected. The front end of the controller (4) is embedded with a control screen, which is a touch control structure. The outer peripheral surface of the processing tank (1) is provided with a flat surface on the left side, on which an air supply pump (5) is provided. The air supply pump (5) is used to draw air from the outside of the processing tank (1), and the air supply pump (5) and the processing tank (1) together form an air supply device.

3. The airlift-type circulating immobilized biofilm reactor as described in claim 1, characterized in that: A distribution pipe (6) is fixedly connected to the bottom surface inside the treatment tank (1). The main body of the distribution pipe (6) is a ring structure, and the diameter of the distribution pipe (6) is smaller than the diameter of the treatment tank (1). The distribution pipe (6) is connected to the air supply pump (5) located outside the treatment tank (1) through a hose. The top of the outer circumference of the distribution pipe (6) is provided with through holes in a ring array. The distribution pipe (6) is a hollow structure inside, and the through holes are spray holes (7). The spray holes (7) are connected to the distribution pipe (6).

4. The airlift-type circulating immobilized biofilm reactor as described in claim 1, characterized in that: The treatment tank (1) is fixedly connected to a base (8). The main body of the base (8) is a ring structure and is located directly above the treatment tank (1). The base (8) is fixedly connected to a carrier (9). The carrier (9) is used to support the biofilm. The main body of the carrier (9) is a telescopic structure. A connecting plate A (10) is fixedly connected to the top surface of the carrier (9). The main body of the connecting plate A (10) is an L-shaped structure. The longitudinal members in the connecting plate A (10) are installed perpendicular to the top surface of the carrier (9), and the transverse members in the connecting plate A (10) are arranged parallel to the carrier (9).

5. The airlift-type circulating immobilized biofilm reactor as described in claim 1, characterized in that: An mounting plate B (22) is fixedly connected to the outer circumferential surface of the processing tank (1). The main body of the mounting plate B (22) is circular, and the mounting plate B (22) is fixedly connected to the top of the outer circumferential surface of the processing tank (1). The diameter of the mounting plate B (22) is larger than the diameter of the processing tank (1). The interior of the mounting plate B (22) is provided with through holes in a ring array. These through holes are mounting holes (11). The main body of the mounting hole (11) is a bidirectional through structure on both the upper and lower sides. The mounting hole (11) and the mounting plate B (22) together form the mounting structure.

6. The airlift-type circulating immobilized biofilm reactor as described in claim 1, characterized in that: The top surface of the processing tank (1) is equipped with a cover plate (12). The main body of the cover plate (12) is an arc-shaped structure at the top surface. The outer side of the cover plate (12) is also fixedly connected with a mounting plate A (13). The structure of the mounting plate A (13) is the same as that of the mounting plate B (22). The interior of the mounting plate A (13) is also provided with mounting holes (11) in a ring array. Fixing bolts (14) are installed inside the mounting holes (11). The six fixing bolts (14) are arranged in a ring array and are used to install the mounting plate A (13) and the mounting plate B (22).

7. The airlift-type circulating immobilized biofilm reactor as described in claim 6, characterized in that: An inlet pipe (15) is fixedly connected to the top surface of the cover plate (12). The inlet pipe (15) is used to supply sewage to the inside of the device. A flange is also fixedly connected to the outside of the inlet pipe (15). An outlet pipe (16) is fixedly connected to the top surface of the cover plate (12). The outlet pipe (16) is used to exhaust air from the inside of the cover plate (12). A bracket (17) is fixedly connected to the top surface of the cover plate (12). The main body of the bracket (17) is a U-shaped structure with an open bottom. The bracket (17) and the cover plate (12) together form a load-bearing structure.

8. The airlift-type circulating immobilized biofilm reactor as described in claim 7, characterized in that: An adjustment component (18) is installed on the bottom surface of the transverse component in the bracket (17). An installation frame (19) is installed on the bottom surface of the adjustment component (18). The main body of the installation frame (19) is a rectangular frame structure. A motor (20) is installed inside the installation frame (19). The motor (20) is located inside the installation frame (19). An output shaft is provided at the bottom of the motor (20). The output shaft passes downward through the installation frame (19) and protrudes from the installation frame (19). A connecting plate B (21) is installed on the output shaft at the bottom of the motor (20). The structure of the connecting plate B (21) is the same as that of the connecting plate A (10). When the connecting plate B (21) is rotated to the position where its longitudinal component faces forward, the connecting plate B (21) is in a state of being engaged with the connecting plate A (10) which is fixedly connected to the top surface of the carrier (9).

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