Sunken sewage plant underground box body structure based on multistage AAO (Anaerobic-Anoxic-Oxic) process

Abstract

The utility model discloses a sinking type sewage plant underground box body structure based on a multistage AAO technology, which comprises an integrated lower caisson, three partition plates are fixedly connected in the integrated lower caisson, the three partition plates divide the interior of the integrated lower caisson into four module grooves, and the four module grooves are connected with the integrated lower caisson. An anaerobic box, an anoxic box, an aerobic box and an MBR membrane box are sequentially mounted in the four module grooves from left to right. According to the utility model, sewage flows and is treated in each functional area in sequence, and is finally discharged after passing through the MBR membrane box, so that the sewage treatment is realized, once internal equipment in the independent functional area breaks down, the communication assembly communicated with the internal equipment can be disassembled, and the positioning mechanism is removed; and then the device can be independently hoisted to realize modular disassembly of the whole functional area, and independent maintenance and repair operation is carried out, so that the device has the advantages of realizing modular assembly and disassembly of each functional area, flexibly and independently disassembling and maintaining, reducing the maintenance difficulty and protecting the health and safety of personnel.

Description

TECHNICAL FIELD

[0001] The utility model relates to AAO sewage treatment field, more specifically, relate to the sinking type sewage plant underground box structure based on multistage AAO process. BACKGROUND

[0002] AAO process is on the basis of A / O process increases an anaerobic tank A, the sewage treatment process that integrates anaerobic zone - anoxic zone - aerobic zone, this process can simultaneously carry out denitrification and phosphorus removal, and the process has the characteristics such as relatively simple operation process, low operating cost, not prone to sludge bulking, is widely used in wastewater treatment field. The principle of AAO process is to utilize various microorganisms in activated sludge under anaerobic and aerobic conditions to realize the decomposition of organic matter and the removal of nitrogen and phosphorus through a series of actions.

[0003] The current AAO process sewage treatment equipment is generally divided into the functional area needed above in the integral type box body, and the box body is installed to the ground, sinking type installation is adopted, but due to the integral structure of the box body, the internal adaptation structure is needed in each functional area, to assist the sewage flow treatment, once failure occurs, due to the large overall structure, the installation personnel need to enter the box for maintenance, not only inconvenient operation, and due to the internal environment problem, the personnel health can also cause great harm, and when replacing internal equipment, the operation amount is large. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model aims at providing the sinking type sewage plant underground box structure based on multistage AAO process.

[0005] To solve the above problems, the utility model adopts the following technical scheme.

[0006] The sinking type sewage plant underground box structure based on multistage AAO process, including integral type sinking tank, the inside fixedly connected with three baffle plates of integral type sinking tank, three baffle plates divide the inside of integral type sinking tank into four module tanks, the inside of four module tanks is installed with anaerobic tank, anoxic tank, aerobic tank and MBR membrane tank from left to right in proper order, three communication components are installed between anaerobic tank, anoxic tank, aerobic tank and MBR membrane tank, and the baffle plate between adjacent and the side edge between both sides baffle plate and integral type sinking tank are movably installed with positioning mechanism.

[0007] As a further description of the above technical scheme: the communication component includes two connecting heads and an integral elbow pipe, two connecting heads are fixedly installed between two adjacent tanks respectively, and both ends of the integral elbow pipe are fixedly connected with two connecting heads through bolts.

[0008] As a further description of the above technical scheme: the positioning mechanism comprises a square frame, a moving rod and a pressure piece, one side of the square frame is hinged to a partition plate, the other side of the square frame is detachably fixed to the partition plate adjacent to the right side of the partition plate through bolts, both ends of the moving rod are slidingly connected to the inside of the square frame, and the pressure piece is installed on the moving rod and presses the anaerobic tank, the anoxic tank, the aerobic tank and the MBR membrane tank downward.

[0009] As a further description of the above technical scheme: the pressure piece comprises a vertical screw rod and a lower pressing block, the bottom end of the vertical screw rod penetrates and is threadedly connected to the bottom of the moving rod, and the bottom end of the vertical screw rod is rotationally connected to the lower pressing block.

[0010] As a further description of the above technical scheme: the top of the anaerobic tank, the anoxic tank, the aerobic tank and the MBR membrane tank is provided with a butt joint groove, and the lower pressing block is in butt joint cooperation with the butt joint groove.

[0011] As a further description of the above technical scheme: the anaerobic tank, the anoxic tank, the aerobic tank and the MBR membrane tank are all internally provided with an independent water pump structure connected to the connecting head.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The anaerobic tank, the anoxic tank, the aerobic tank and the MBR membrane tank are independently installed in the independent partitions in the integrated sunken tank, so that the device has the advantages of modular assembly and disassembly of each functional area, flexible independent disassembly and maintenance, reduced maintenance difficulty, and protection of personnel health and safety. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is a part of the three-dimensional split structure schematic diagram of the utility model;

[0016] Figure 3 It is a part of the front view cross-sectional structure schematic diagram of the utility model;

[0017] Figure 4 It is Figure 3 It is an enlarged schematic diagram of the A part of the utility model.

[0018] Explanation of reference numerals in the drawing:

[0019] 1 - integral sinking box; 2 - partition; 3 - module groove; 4 - anaerobic tank; 5 - anoxic tank; 6 - aerobic tank; 7 - MBR membrane tank; 8 - communication assembly; 81 - connecting head; 82 - integral elbow; 9 - positioning mechanism; 91 - square frame; 92 - moving rod; 93 - pressure piece; 931 - vertical screw rod; 932 - lower pressing block; 10 - butt joint groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model;

[0021] Please refer to Figures 1 to 4 In the utility model, the sinking type sewage plant underground box structure based on multistage AAO process comprises an integral sinking box 1, three partitions 2 are fixedly connected inside the integral sinking box 1, the inside of the integral sinking box 1 is divided into four module grooves 3 by the three partitions 2, an anaerobic tank 4, an anoxic tank 5, an aerobic tank 6 and an MBR membrane tank 7 are installed inside the four module grooves 3 in sequence from left to right, three communication assemblies 8 are installed between the anaerobic tank 4, the anoxic tank 5, the aerobic tank 6 and the MBR membrane tank 7, and positioning mechanisms 9 are movably installed between adjacent partitions 2 and between the partitions 2 on both sides and the side edges of the integral sinking box 1.

[0022] In the utility model, the integral sinking box 1 is used as the installation support, the integral sinking box 1 is first sunk and installed underground, then the installation process is used to install the anaerobic tank 4, the anoxic tank 5, the aerobic tank 6 and the MBR membrane tank 7 into the inside of the four module grooves 3 divided by the partitions 2 in sequence, then the three communication assemblies 8 are used to connect the anaerobic tank 4, the anoxic tank 5, the aerobic tank 6 and the MBR membrane tank 7 in sequence, then the sewage is injected into the inside of the anaerobic tank 4, then the sewage flows in each functional area in sequence and is treated, and finally is discharged after passing through the MBR membrane tank 7, so that the sewage treatment is realized, wherein once the internal equipment of an independent functional area fails, the communication assembly 8 connected with the independent functional area can be removed, and the positioning mechanism 9 is released, then the independent functional area can be hoisted up to realize the modular disassembly of the whole functional area and the independent maintenance operation, so that the device has the advantages that the modular assembly and disassembly of each functional area are realized, the independent disassembly and maintenance are flexible, the maintenance difficulty is reduced, the health and safety of personnel are protected, the problem that in the prior art, because the box body is an integral structure, the internal built-in matching structure is needed in each functional area to assist the sewage flow treatment, once a failure occurs, because the overall structure is large, the installation personnel need to enter the box body for maintenance, which is not convenient for operation, and the internal environment problem also causes great harm to the health of personnel, and the problem that the operation amount is large when the internal equipment is replaced.

[0023] Please refer to Figure 1 and Figure 2Wherein: the communication assembly 8 comprises two connecting heads 81 and an integrated elbow 82, the two connecting heads 81 are fixedly installed between the adjacent two tanks respectively, and the two ends of the integrated elbow 82 are fixedly connected with the two connecting heads 81 through bolts.

[0024] In the utility model, the communication between the tanks is realized through the connecting head 81 cooperating with the integrated elbow 82, and the utility model is convenient to disassemble and maintain.

[0025] Please refer to Figure 1 With Figure 4 Wherein: the positioning mechanism 9 comprises a square frame 91, a moving rod 92 and a pressure piece 93, one side of the square frame 91 is hinged to the baffle 2, the other side of the square frame 91 is detachably fixed to the baffle 2 adjacent to the right side of the baffle 2 through bolts, the two ends of the moving rod 92 are slidably connected to the inside of the square frame 91, and the pressure piece 93 is installed on the moving rod 92 and presses the anaerobic tank 4, the anoxic tank 5, the aerobic tank 6 and the MBR membrane tank 7 downwards.

[0026] In the utility model, the moving rod 92 on the square frame 91 drives the pressure piece 93 to align the position of the bottom tank, and then the pressure piece 93 is locked to press the bottom tank, alignment is realized, the operation is stable, and subsequent independent disassembly and maintenance are facilitated.

[0027] Please refer to Figure 4 Wherein: the pressure piece 93 comprises a vertical screw rod 931 and a pressing block 932, the bottom end of the vertical screw rod 931 penetrates and is screw-connected to the bottom of the moving rod 92, the bottom end of the vertical screw rod 931 is rotationally connected with the pressing block 932, and the pressing block 932 presses and positions the anaerobic tank 4, the anoxic tank 5, the aerobic tank 6 and the MBR membrane tank 7.

[0028] In the utility model, the vertical screw rod 931 is rotated to drive the pressing block 932 to descend and contact and press and position the anaerobic tank 4, the anoxic tank 5, the aerobic tank 6 and the MBR membrane tank 7 at the bottom, operation is simple and convenient, and the positioning effect is stable.

[0029] Please refer to Figure 2 Wherein: the top of the anaerobic tank 4, the anoxic tank 5, the aerobic tank 6 and the MBR membrane tank 7 is provided with a butt joint groove 10, and the pressing block 932 is in butt joint cooperation with the butt joint groove 10.

[0030] In the utility model, the butt joint groove 10 makes the contact and cooperation between the pressing block 932 and the tank at the bottom more stable, and the positioning stability is improved.

[0031] Please refer to Figure 1 Wherein: the anaerobic tank 4, the anoxic tank 5, the aerobic tank 6 and the MBR membrane tank 7 are all internally provided with independent water pump structures connected with the connecting head 81.

[0032] In this invention, each of the anaerobic tank 4, anoxic tank 5, aerobic tank 6, and MBR membrane tank 7 has an independent water pump structure that connects to the connector 81, which makes the sewage flow between them smoother, avoids sewage flow blockage, and also facilitates the discharge of residual sewage during maintenance.

[0033] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A submerged tank structure for a wastewater treatment plant based on a multi-stage AAO process, comprising an integrated submerged tank (1), characterized in that: The integrated submerged tank (1) is internally fixedly connected to three partitions (2), which divide the interior of the integrated submerged tank (1) into four modular slots (3). The four modular slots (3) are installed from left to right with an anaerobic tank (4), an anoxic tank (5), an aerobic tank (6), and an MBR membrane tank (7). Three connecting components (8) are installed between the anaerobic tank (4), the anoxic tank (5), the aerobic tank (6), and the MBR membrane tank (7). Positioning mechanisms (9) are movably installed between adjacent partitions (2) and between the partitions (2) on both sides and the sides of the integrated submerged tank (1).

2. The underground box structure of a submerged wastewater treatment plant based on multi-stage AAO process according to claim 1, characterized in that: The connecting component (8) includes two connectors (81) and an integral bend (82). The two connectors (81) are fixedly installed between two adjacent boxes, and the two ends of the integral bend (82) are fixedly connected to the two connectors (81) by bolts.

3. The underground tank structure of a submerged wastewater treatment plant based on multi-stage AAO process according to claim 1, characterized in that: The positioning mechanism (9) includes a square frame (91), a moving rod (92), and a pressure member (93). One side of the square frame (91) is hinged to the partition (2), and the other side of the square frame (91) is detachably fixed to the partition (2) adjacent to the right side of the partition (2) by bolts. Both ends of the moving rod (92) are slidably connected to the inside of the square frame (91). The pressure member (93) is installed on the moving rod (92) and presses down on the anaerobic chamber (4), the anoxic chamber (5), the aerobic chamber (6), and the MBR membrane chamber (7).

4. The underground box structure of a submerged wastewater treatment plant based on multi-stage AAO process as described in claim 3, characterized in that: The pressure component (93) includes a vertical screw (931) and a lower pressure block (932). The bottom end of the vertical screw (931) passes through and is threaded to the bottom of the moving rod (92). The bottom end of the vertical screw (931) is rotatably connected to the lower pressure block (932). The lower pressure block (932) presses and positions the anaerobic chamber (4), the anoxic chamber (5), the aerobic chamber (6), and the MBR membrane chamber (7).

5. The underground box structure of a submerged wastewater treatment plant based on multi-stage AAO process according to claim 4, characterized in that: The top of the anaerobic chamber (4), the anoxic chamber (5), the aerobic chamber (6) and the MBR membrane chamber (7) are all provided with docking grooves (10), and the pressing block (932) is docked with the docking grooves (10).

6. The underground box structure of a submerged wastewater treatment plant based on multi-stage AAO process according to claim 2, characterized in that: The anaerobic tank (4), anoxic tank (5), aerobic tank (6) and MBR membrane tank (7) are all equipped with independent water pump structures that are connected and cooperate with the connector (81).

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