Self-rotating type driving nitrification sewage treatment device and method

Abstract

The invention relates to the technical field of water pollution control, in particular to a self-rotating type driving nitrification sewage treatment device and method. The invention discloses a self-rotating type driving nitrification sewage treatment device which comprises a reaction box, an air inlet hole, a water inlet pipe, a water inlet hole, a first partition plate, a first water through hole, a second water through hole, a third water through hole, a fourth water through hole, a second partition plate, a fifth water through hole, a sixth water through hole, a first water outlet pipe, a second water outlet pipe, a shaft sleeve, a water receiving tank, a water outlet pipe, a first branch pipeline, a second branch pipeline and a biological rotating plate, the invention discloses a nitrification waterwheel, a baffle, a rotating shaft, a belt, a motor and a pump. The problems that the waterwheel and the biological rotating disc are poor in sewage treatment effect due to uneven transmission of a rotating shaft for connecting the waterwheel and the biological rotating disc and uneven sewage flow, and sewage in a space cannot be fully treated are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of water pollution control, and in particular to a self-transforming driven nitrification sewage treatment device and method. Background Art

[0002] At present, the treatment rate of urban domestic sewage in China is already very high. However, for rural domestic sewage, due to its scattered residence, weak economic foundation, and lack of urban sewer pipes, sewage collection and centralized treatment are difficult to achieve both economically and technically. Compared with the centralized urban sewage treatment process with large scale, high energy consumption and difficult management, the small-scale, local and decentralized sewage treatment process with low investment and fast implementation is more applicable. Therefore, it is of great significance to develop decentralized sewage treatment equipment with low energy consumption and easy management.

[0003] At present, decentralized rural domestic sewage treatment mostly adopts the "anaerobic-aerobic-wetland" biological ecological combination process. The main problem in the aerobic stage is the contradiction between the oxygenation effect and the aeration energy consumption. Traditional aerobic aeration is mainly provided by machinery or blowers, which has high equipment cost and energy consumption and is not suitable for rural sewage treatment. The biological rotary disc is a biofilm sewage biological treatment technology. Its biofilm can periodically alternate between air and sewage, does not require aeration, and has the characteristics of high microbial concentration, strong resistance to shock loads, good nitrification function and low sludge production.

[0004] The existing technology uses driving waterwheel and turntable functional zoning, but there are problems such as uneven transmission of the rotating shaft connecting the waterwheel and the biological turntable, uneven sewage flow, which makes the waterwheel and the biological turntable treat sewage poorly and the sewage cannot be fully treated in one space, thus affecting the sewage treatment efficiency. Summary of the invention

[0005] Therefore, the present invention is made in view of the above problems, and the purpose of the present invention is to provide a self-transforming driven nitrification sewage treatment device and method, and the present invention achieves the above purpose through the following technical solutions.

[0006] A self-driving nitrification sewage treatment device and method comprises: a reaction box, an air inlet, a water inlet pipe, a water inlet hole, a first baffle, a first water hole, a second water hole, a third water hole, a fourth water hole, a second baffle, a fifth water hole, a sixth water hole, a first water outlet pipe, a second water outlet pipe, a shaft sleeve, a water receiving tank, a water outlet pipe, a first branch pipeline, a second branch pipeline, a biological rotating plate, a nitrification water wheel, a baffle, a rotating shaft, a belt, a motor, and a pump;

[0007] There are multiple reaction boxes, the ends of the reaction boxes are arranged adjacently and spaced apart, and the middle part is fixedly connected to the shaft sleeve, and the shaft sleeve is connected to the pool wall sleeves on both sides of the water receiving pool; a first pipe connected by a pump is provided below the water inlet pipe, and the other end of the pump is connected to the water receiving pool through a second pipe;

[0008] The reaction box is divided into eight spaces by the first partition and the second partition, the front four spaces are provided with a plurality of biological rotating plates connected by a rotating shaft, the rear four spaces are provided with a plurality of nitrification water wheels connected by a rotating shaft, and the contact parts of the front four spaces with the shaft sleeve and the water inlet pipe are provided with water inlet holes;

[0009] The front and rear spaces on the upper left side of the reaction box are connected through a first water hole provided at the upper left of the first partition, and the front and rear spaces on the right side are connected through a second water hole provided at the upper right of the first partition; the front and rear spaces on the lower left side are connected through a third water hole provided at the lower left of the first partition, and the front and rear spaces on the right side are connected through a fourth water hole provided at the lower right of the first partition; the left and right spaces on the upper rear part of the reaction box are connected through a fifth water hole provided at the upper rear part of the second partition, and the left and right spaces on the lower rear part are connected through a sixth water hole provided at the lower rear part of the second partition; a first water outlet pipe and a second water outlet pipe are provided in sequence at the upper and lower parts of the right rear part of the reaction box;

[0010] An air inlet hole is provided at a central position where the first partition plate and the second partition plate contact each other at the front surfaces of the plurality of reaction boxes and the interior of the box body;

[0011] The right side of the shaft sleeve is connected to the motor through a belt. When the motor is driven in the forward direction, the reaction box rotates forward with the shaft sleeve, and the biological rotating plate in the box body rotates forward accordingly to contact the air entering through the air inlet hole to treat the sewage; when the motor rotates in the reverse direction, the reaction box rotates in the reverse direction with the shaft sleeve, and the water in the four spaces in front of the reaction box passes through the water holes provided on the first partition plate, and the water in the four spaces in front flows to the corresponding four spaces in the rear to react with the nitrification water truck. When the water in the space in the rear of the reaction box reaches a certain amount, it is discharged to the water receiving pool through the first outlet pipe and the second outlet pipe provided on the upper and lower right side of the box body;

[0012] The width of the water receiving pool is greater than the diagonal length of the side of the reaction box. A water outlet pipe with a movable baffle is provided on the upper rear right side of the water receiving pool, so that when the water in the water receiving pool reaches a certain amount, the movable baffle can be flushed open to discharge the water in the water receiving pool. If the water volume does not reach a certain amount, the movable baffle abuts against the water outlet end of the water outlet pipe, and the water in the water receiving pool cannot be discharged;

[0013] A one-way valve is provided in the air inlet, which is moved to the left to open the channel, and air flows into the space in front of the reaction box to provide oxygen for the biological transfer plate to treat sewage. The one-way valve is moved to the right to close the channel, and the gas and water in the reaction box cannot be discharged from the box body.

[0014] The biological rotating plate is a horizontal plate structure arranged in a ring, with a larger area in contact with water and easier to rotate;

[0015] The rotating shaft is arranged on the inner wall of the reaction box;

[0016] The baffle of the nitrification water wheel protrudes from the side of the nitrification water wheel, and the spaces between the plates are filled with biological fillers. Except for the baffle, the shell of the nitrification water wheel is a porous structure; the protruding part of the baffle breaks the water flow when it rotates, so as to better react with the biological filler;

[0017] The water discharged from the first outlet pipe and the second outlet pipe flows into the water receiving pool, and after sedimentation, the water in the pool can flow back to the water inlet pipe through the first branch pipe and the second branch pipe under the action of the pump for further treatment;

[0018] Beneficial Effects

[0019] 1. The present invention divides the reaction box into eight spaces by the first partition and the second partition. The front four spaces are provided with biological transfer plates, and the rear four spaces are provided with nitrification water trucks. When sewage treatment is carried out, different spaces work independently without being affected.

[0020] 2. The present invention drives the reaction box to rotate forwardly through the motor, and the biological rotary plate in the box rotates forwardly accordingly to contact the air entering through the air inlet to treat the sewage; when the motor rotates reversely, the reaction box rotates reversely accordingly, and the water in the four spaces in front of the reaction box passes through the water holes provided on the first partition plate, and the water in the four spaces in front flows to the corresponding four spaces in the rear to react with the nitrification water truck. When the water in the space behind the reaction box reaches a certain amount, it is discharged to the water receiving pool through the first water outlet pipe and the second water outlet pipe provided on the upper and lower right side of the box, so that the water in each space can be better treated. At the same time, the water treated in multiple spaces is better than the water treated in one space.

[0021] 3. The present invention discharges the treated water in the upper layer through a water receiving pool, and the water at the bottom is pumped out and treated again. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the present invention.

[0023] Figure 2 It is a schematic diagram of the space structure above the reaction box of the present invention.

[0024] Figure 3 It is a schematic diagram of the space structure below the reaction box of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the biological transfer plate and the digestion water wheel of the present invention.

[0026] Figure 5 It is a two-dimensional left view of the reaction box of the present invention.

[0027] Among them, the reaction box 1, the air inlet 11, the water inlet pipe 101, the water inlet hole 1011, the first partition 1021, the first water hole 1021-1, the second water hole 1021-2, the third water hole 1021-3, the fourth water hole 1021-4, the second partition 1022, the fifth water hole 1022-1, the sixth water hole 1022-2, the first water outlet pipe 103, the second water outlet pipe 104, the shaft sleeve 2, the water receiving tank 3, the water outlet pipe 301, the first branch pipeline 302, the second branch pipeline 303, the biological transfer plate 4, the nitrification water wheel 5, the baffle 501, the rotating shaft 6, the belt 7, the motor 8, the pump 9, and the water flow direction S. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with specific embodiments and drawings. More details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in a variety of other ways different from the description. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the scope of protection of the present invention should not be limited by the content of this specific embodiment.

[0029] like Figure 1-5 As shown, a self-transforming driven nitrification sewage treatment device and method; including a reaction box 1, an air inlet 11, a water inlet pipe 101, a water inlet 1011, a first baffle 1021, a first water hole 1021-1, a second water hole 1021-2, a third water hole 1021-3, a fourth water hole 1021-4, a second baffle 1022, a fifth water hole 1022-1, a sixth water hole 1022-2, a first water outlet pipe 103, a second water outlet pipe 104, a sleeve 2, a water receiving tank 3, a water outlet pipe 301, a first branch pipe 302, a second branch pipe 303, a biological rotating plate 4, a nitrification water wheel 5, a baffle 501, a rotating shaft 6, a belt 7, a motor 8, and a pump 9;

[0030] There are multiple reaction boxes 1, the ends of the reaction boxes 1 are arranged adjacently and spaced apart, and the middle part is fixedly connected to the shaft sleeve 2, and the shaft sleeve 2 is connected to the pool wall sleeves on both sides of the water receiving pool 3; a first branch pipe 302 connected by a pump 9 is provided below the water inlet pipe 101, and the other end of the pump 9 is connected to the water receiving pool 3 through a second branch pipe 303;

[0031] The reaction box 1 is divided into eight spaces by a first partition 1021 and a second partition 1022. A plurality of biological rotating plates 4 connected by a rotating shaft 6 are arranged inside the front four spaces, a plurality of nitrification water wheels 5 connected by a rotating shaft 6 are arranged in the rear four spaces, and a water inlet hole 1011 is arranged at the contact part between the front four spaces and the shaft sleeve 2 and the water inlet pipe 101;

[0032] The front and rear spaces on the upper left side of the reaction box 1 are connected through a first water hole 1021-1 provided at the upper left of the first partition 1021, and the front and rear spaces on the right side are connected through a second water hole 1021-2 provided at the upper right of the first partition 1021; the front and rear spaces on the lower left side are connected through a third water hole 1021-3 provided at the lower left of the first partition 1021, and the front and rear spaces on the right side are connected through a fourth water hole 1021-4 provided at the lower right of the first partition 1021; the left and right spaces on the upper rear part of the reaction box 1 are connected through a fifth water hole 1022-1 provided at the upper rear part of the second partition 1022, and the left and right spaces on the lower rear part are connected through a sixth water hole 1022-2 provided at the lower rear part of the second partition 1022; a first water outlet pipe 103 and a second water outlet pipe 104 are provided in sequence at the upper and lower parts of the right rear part of the reaction box 1;

[0033] An air inlet 11 is provided at the center of the first baffle 1021 and the second baffle 1022 where the front surfaces of the multiple reaction boxes 1 intersect with the interior of the box body. The air entering is distributed crosswise on the baffles, and the air is input into the four spaces in front of the reaction box 1 to provide oxygen for the biological transfer plate 4 to treat the sewage.

[0034] The right side of the shaft sleeve 2 is connected to the motor 8 through a belt 7. When the motor 8 is driven in the forward direction, the reaction box 1 rotates forward with the shaft sleeve 2, and the biological transfer plate 4 in the box body rotates forward accordingly to contact the air entering through the air inlet 11 to treat the sewage; when the motor 8 rotates in the reverse direction, the reaction box 1 rotates in the reverse direction with the shaft sleeve 2, and the water in the four spaces in front of the reaction box 1 flows to the corresponding four spaces in the rear through the water holes provided on the first partition plate 1021 to react with the nitrification water wheel 5. When the water in the space in the rear of the reaction box 1 reaches a certain amount, it is discharged to the water receiving pool 3 through the first water outlet pipe 103 and the second water outlet pipe 104 provided on the upper and lower right side of the box body;

[0035] The width of the water receiving pool 3 is greater than the diagonal length of the side of the reaction box 1. A water outlet pipe 301 with a movable baffle 3011 is provided on the upper right rear side of the water receiving pool 3, so that when the water in the water receiving pool 3 reaches a certain amount, the movable baffle 3011 can be flushed open to discharge the water in the water receiving pool 3. If the water volume does not reach a certain amount, the movable baffle 3011 abuts against the water outlet end of the water outlet pipe 301, and the water in the water receiving pool 3 cannot be discharged;

[0036] The air inlet 11 is provided with a one-way valve, which is moved to the left to open the channel, and air flows into the space in front of the reaction box 1 to provide oxygen for the biological transfer plate 4 to treat sewage, and is moved to the right to close the channel, so that the gas and water in the reaction box 1 cannot be discharged from the box body;

[0037] The biological transfer plate 4 is a horizontal plate structure arranged in a ring, with a larger area in contact with water and easier to rotate;

[0038] The rotating shaft 6 is arranged on the inner wall of the reaction box 1;

[0039] The baffle plate 501 of the nitrification water wheel 5 protrudes from the side of the nitrification water wheel 5, and the space between the plates is filled with biological fillers. Except for the baffle plate 501, the shell of the nitrification water wheel 5 is a porous structure; the protruding part of the baffle plate 501 breaks the water flow when rotating, so as to better react with the biological fillers;

[0040] The water discharged from the first outlet pipe 103 and the second outlet pipe 104 flows into the water receiving pool 3. After sedimentation, the water in the pool can flow back to the water inlet pipe 101 through the first branch pipe 302 and the second branch pipe 303 under the action of the pump 9 for further treatment.

[0041] The present invention also provides a method for automatically driving a nitrification sewage treatment device:

[0042] S1: The sewage in the water inlet pipe 101 flows into the four spaces in front of the reaction box 1 through the water inlet hole 1011, and the shaft sleeve 2 is driven by the positive drive of the motor 8, and the reaction box 1 rotates accordingly, so that the sewage in the space in front of the box body contacts the biological transfer plate 4 for treatment;

[0043] S2: The motor 8 drives the shaft sleeve 2 in reverse, and the reaction box 1 rotates in reverse, so that the sewage in the front space of the box body flows to the corresponding rear space through the water holes on the first partition plate 1021 to react with the nitrification water truck 5 to treat the sewage;

[0044] S3: When the sewage in the space behind the reaction box 1 reaches a certain amount, it will flow into the water receiving tank 3 through the first outlet pipe 103 and the second outlet pipe 104 arranged on the upper and lower sides of the right side of the box;

[0045] S4: The water flowing into the water receiving pool 3 contains a part of sediment, which is then precipitated and then flows back to the water inlet pipe 101 through the first branch pipe 302 and the second branch pipe 303 under the action of the pump 9 for further treatment; when the water in the water receiving pool 3 reaches a certain amount, it flows out through the water outlet pipe 301;

[0046] S5: The sewage flowing out through the outlet pipe 301 will flow to the artificial wetland system for nitrogen and phosphorus removal.

Claims

1. A self-transforming driven nitrification sewage treatment device; comprising: A reaction box (1), an air inlet (11), a water inlet pipe (101), a water inlet hole (1011), a first baffle (1021), a first water hole (1021-1), a second water hole (1021-2), a third water hole (1021-3), a fourth water hole (1021-4), a second baffle (1022), a fifth water hole (1022-1), a sixth water hole (1022-2), a first water outlet pipe (103), a second water outlet pipe (104), a shaft sleeve (2), a water receiving tank (3), a water outlet pipe (301), a first branch pipe (302), a second branch pipe (303), a biological transfer plate (4), a nitrification water wheel (5), a baffle (501), a rotating shaft (6), a belt (7), a motor (8), and a pump (9); The invention is characterized in that: there are a plurality of reaction boxes (1), the ends of the reaction boxes (1) are arranged adjacent to each other at intervals, and the middle part is fixedly connected to the shaft sleeve (2), and the shaft sleeve (2) is connected to the pool wall sleeves on both sides of the water receiving pool (3); a first branch pipe (302) connected through a pump (9) is provided below the water inlet pipe (101), and the other end of the pump (9) is connected to the water receiving pool (3) through a second branch pipe (303); The reaction box (1) is divided into eight spaces by a first partition (1021) and a second partition (1022); a plurality of biological transfer plates (4) connected via a rotating shaft (6) are arranged in the front four spaces; a plurality of nitrification water wheels (5) connected via a rotating shaft (6) are arranged in the rear four spaces; and water inlet holes (1011) are arranged at the contact parts between the front four spaces and the shaft sleeve (2) and the water inlet pipe (101); The front and rear spaces on the upper left side of the reaction box (1) are connected through a first water hole (1021-1) provided at the upper left of the first partition (1021), and the front and rear spaces on the right side are connected through a second water hole (1021-2) provided at the upper right of the first partition (1021); the front and rear spaces on the lower left side are connected through a third water hole (1021-3) provided at the lower left of the first partition (1021), and the front and rear spaces on the right side are connected through a fourth water hole (1021-4) provided at the lower right of the first partition (1021); the left and right spaces on the upper rear part of the reaction box (1) are connected through a fifth water hole (1022-1) provided at the upper rear part of the second partition (1022), and the left and right spaces on the lower rear part are connected through a sixth water hole (1022-2) provided at the lower rear part of the second partition (1022); a first water outlet pipe (103) and a second water outlet pipe (104) are provided in sequence at the upper and lower parts of the right rear part of the reaction box (1); An air inlet hole (11) is provided at the center of the contact between the first partition plate (1021) and the second partition plate (1022) where the front surfaces of the plurality of reaction boxes (1) intersect with the interior of the box body; The right side of the shaft sleeve (2) is connected to the motor (8) via a belt (7). When the motor (8) is driven in the forward direction, the reaction box (1) rotates in the forward direction along with the shaft sleeve (2), and the biological transfer plate (4) in the box body rotates in the forward direction accordingly to contact the air entering through the air inlet (11) to treat the sewage. When the motor (8) rotates in the reverse direction, the reaction box (1) rotates in the reverse direction along with the shaft sleeve (2), and the water in the four spaces in front of the reaction box (1) flows through the water holes provided on the first partition plate (1021) to the corresponding four spaces in the rear to react with the nitrification water wheel (5). When the water in the space in the rear of the reaction box (1) reaches a certain amount, it is discharged to the water receiving pool (3) through the first water outlet pipe (103) and the second water outlet pipe (104) provided on the upper and lower right sides of the box body. The width of the water receiving pool (3) is greater than the diagonal length of the side of the reaction box (1). A water outlet pipe (301) with a movable baffle (3011) is provided at the upper rear right side of the water receiving pool (3), so that when the water in the water receiving pool (3) reaches a certain amount, the movable baffle (3011) can be opened to discharge the water in the water receiving pool (3). If the water volume does not reach the certain amount, the movable baffle (3011) abuts against the water outlet end of the water outlet pipe (301), and the water in the water receiving pool (3) cannot be discharged; The air inlet (11) is provided with a one-way valve, which is moved to the left to open the passage, and air flows into the space in front of the reaction box (1) to provide oxygen for the biological transfer plate (4) to treat sewage, and is moved to the right to close the passage, so that the gas and water in the reaction box (1) cannot be discharged from the box body. The biological transfer plate (4) is a horizontal plate structure arranged in a ring shape, with a larger area in contact with water and easier to rotate; The rotating shaft (6) is arranged on the inner wall of the reaction box (1); The baffle plate (501) of the nitrification water wheel (5) protrudes from the side of the nitrification water wheel (5), and the spaces between the plates are filled with biological fillers. Except for the baffle plate (501), the shell of the nitrification water wheel (5) is a porous structure; the protruding part of the baffle plate (501) breaks the water flow when it rotates, so as to better react with the biological filler; The water discharged from the first water outlet pipe (103) and the second water outlet pipe (104) flows into the water receiving pool (3) and, after sedimentation, the water in the pool can flow back to the water inlet pipe (101) through the first branch pipe (302) and the second branch pipe (303) under the action of the pump (9) for further treatment.

2. The self-driving nitrification sewage treatment device according to claim 1 is characterized by: A method for self-transforming and driving a nitrification sewage treatment device, as follows: S1: The sewage in the water inlet pipe (101) flows into the four spaces in front of the reaction box (1) through the water inlet hole (1011), and the shaft sleeve (2) is driven by the motor (8) in the positive direction, and the reaction box (1) rotates accordingly, so that the sewage in the space in front of the box body contacts the biological transfer plate (4) for treatment; S2: The motor (8) drives the shaft sleeve (2) in reverse, and the reaction box (1) rotates in the reverse direction accordingly, so that the sewage in the front space of the box body flows through the water holes on the first partition plate (1021) to the corresponding rear space to react with the nitrification water wheel (5) to treat the sewage; S3: When the sewage in the space behind the reaction box (1) reaches a certain amount, it will flow into the water receiving tank (3) through the first outlet pipe (103) and the second outlet pipe (104) arranged on the right side of the box body; S4: The water flowing into the water receiving pool (3) contains a portion of sediment, which, after being precipitated, flows back to the water inlet pipe (101) through the first branch pipe (302) and the second branch pipe (303) under the action of the pump (9) for further treatment; When the water in the water receiving pool (3) reaches a certain amount, it flows out through the water outlet pipe (301); S5: The sewage flowing out through the outlet pipe (301) will flow to the artificial wetland system for nitrogen and phosphorus removal.

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