Energy-saving decomposition tank based on sewage aerobic COD (Chemical Oxygen Demand) treatment
By adopting energy-saving decomposition tanks with closed-loop aeration and intermittent regulation components in wastewater treatment, the problems of high land occupation and high cost in high COD wastewater treatment have been solved, achieving efficient organic matter decomposition and cost reduction.
Patent Information
- Application Number
- CN202422813990.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing technologies for treating high-COD wastewater require two separate tanks and a large mixing mechanism, resulting in a large footprint and high production costs.
An energy-saving decomposition tank is adopted, combined with closed-loop aeration components, intermittent adjustment components and water distribution components. By precisely controlling the oxygen delivery path, the contact between COD wastewater and sludge is promoted, and activated sludge deposition is reduced, thereby lowering costs.
It achieves efficient wastewater decomposition in a small footprint, with good organic matter reaction effect, reducing production costs and the need for agitation mechanisms.
Smart Images
Figure CN223458171U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sewage treatment technical field, concretely is energy -conserving type decomposition pond based on sewage aerobic COD treatment. BACKGROUND
[0002] Energy -consaving type decomposition pond based on sewage aerobic COD treatment is a kind of energy -consaving equipment specially designed for treating the sewage containing higher chemical oxygen demand COD;
[0003] COD is full name for Chemical Oxygen Demand, namely chemical oxygen demand, it is the amount of reduction substance needing to be oxidized in water sample by chemical method, in the operation and management of wastewater treatment plant, it is an organic pollution parameter that can be quickly determined, and high COD sewage is the remaining part of wastewater in reuse treatment process, and it contains higher COD and higher salt content, and the more common processing mode is evaporation or drying treatment;
[0004] In view of the fact that sewage contains rich organic matter and up to a dozen salt components, the current mainstream processing method is to combine anaerobic tower and aerobic tank, degrades organic matter in sewage, and carries out sedimentation treatment, however, in this sedimentation link, two independent pools need to be configured, not only large area, in order to ensure that reagent and sewage can be fully mixed, large stirring mechanism is also needed for long time stirring operation, which undoubtedly further increases production cost, therefore, energy -conserving type decomposition pond based on sewage aerobic COD treatment is provided for the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing energy -conserving type decomposition pond based on sewage aerobic COD treatment to solve the problem of needing two independent pools to degrade organic matter in sewage, needing large stirring mechanism for long time operation and increasing production cost.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] The utility model provides an energy -conserving type decomposition pool based on sewage aerobic COD treatment, including hydrolytic acidification pool main part, the inboard fixed connection of hydrolytic acidification pool main part has closed loop aeration subassembly, the outboard fixed connection of hydrolytic acidification pool main part has intermittent regulation subassembly, the top of hydrolytic acidification pool main part inner wall fixedly connected with water distribution subassembly, the closed loop aeration subassembly includes two corresponding first support rod, one end of first support rod is fixedly connected with first aeration pipe, and the second aeration pipe is fixedly connected between two first aeration pipes, and the top of first aeration pipe and second aeration pipe is fixedly connected with aeration head, one side of one first aeration pipe is fixedly connected with injection pipe, and the lower of first aeration pipe is equipped with anti -sediment bottom subassembly, the intermittent regulation subassembly includes fixed frame, both sides of fixed frame middle part are fixedly connected with second support rod, the inboard fixed connection of second support rod has cavity seal box, and the worm wheel is rotatably connected between two cavity seal boxes, and the inside top of worm wheel is equipped with adjusting hole, the inner wall of one cavity seal box is fixedly connected with rubber disc, and the top and bottom of rubber disc are fixedly connected with the delivery pipe, and the outside of another cavity seal box is fixedly connected with the installation pipe.
[0008] As the further optimization of the utility model, wherein: the anti-sediment bottom subassembly includes a sealing cylinder, a slide column is slidably connected to the middle portion of the sealing cylinder, a sealing ring is fixedly connected to the middle portion of the slide column, the surface of the sealing ring and the inner wall of the sealing cylinder are slidably matched, a push disc is fixedly connected to the top end of the slide column, the outer side of the push disc and the bottom of the inner wall of the hydrolytic acidification pool main body are slidably matched, and a pressurizing pipe is fixedly connected to the bottom of the sealing cylinder.
[0009] As the further optimization of the utility model, wherein: a worm is rotatably connected to the top of the inner side of the fixed frame, the worm is meshingly connected between the worm and the worm wheel, a motor is fixedly connected to the top of the fixed frame, and the telescopic end of the motor is fixedly connected to one end of the worm.
[0010] As the further optimization of the utility model, wherein: the surface of the rubber disc is attached to the inner side of the worm wheel, the two delivery pipes are symmetrically arranged in an up-down manner, the inner diameter of the delivery pipe matches the inner diameter of the adjusting hole, one end of the delivery pipe at the top is fixedly connected to one end of the injection pipe, and one end of the delivery pipe at the bottom is fixedly connected to one end of the pressurizing pipe.
[0011] As the further optimization of the utility model, wherein: the water distribution assembly includes two corresponding fixed rods, two fixed rods are fixedly connected with water distribution pipes, the top of one side of the water distribution pipe is fixedly connected with an electric telescopic rod, the telescopic end of the electric telescopic rod extends to the inside of the water distribution pipe, the telescopic end of the water distribution pipe is fixedly connected with a cleaning brush, the top of the inner wall of the water distribution pipe is fixedly connected with a filter plate, the top of the other side of the electric telescopic rod is fixedly connected with a blowdown pipe, one end of the blowdown pipe is clamped with a sealing plug.
[0012] As the further optimization of the utility model, wherein: the cleaning brush is arranged above the filter plate, the cleaning brush and the filter plate are in sliding fit, and the blowdown pipe is in inclined structure.
[0013] As the further optimization of the utility model, wherein: the first aeration pipe and the second aeration pipe are mutually penetrated, the first aeration pipe is in "U" shape, and two first aeration pipes are symmetrically arranged.
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] 1. The intermittent adjusting assembly is matched with the hydrolysis acidification tank body, so that the land occupation area is small, the oxygen delivery path can be accurately controlled, when the oxygen is guided to the closed-loop aeration assembly, the contact between the COD sewage and the sludge is strengthened by short-term aeration operation, the organic matter reaction is promoted, the mud and water are better separated, and the use cost of the acidification tank is reduced, when the oxygen is delivered to the anti-sediment bottom assembly, the active sludge deposition amount in the tank bottom is reduced by up-down reciprocating circulation, the process of converting the soluble COD into BOD is accelerated, and the biodegradability of the hydrolysis acidification tank is improved.
[0016] 2. The water distribution assembly is arranged, and the impurities slide along the inner wall of the blowdown pipe, so that the blockage risk and the water supply difficulty caused by the impurity accumulation in the water distribution pipe are significantly reduced. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the overall structure schematic view of the utility model;
[0018] Figure 2 It is the cross-sectional structure schematic view of the utility model;
[0019] Figure 3 It is the local explosion structure schematic view of the intermittent adjusting assembly of the utility model;
[0020] Figure 4 It is the cross-sectional structure schematic view of the anti-sediment bottom assembly of the utility model;
[0021] Figure 5 It is the local structure schematic view of the water distribution assembly of the utility model.
[0022] Fig. 1, hydrolysis acidification tank main body; 2, closed loop aeration assembly; 21, first support rod; 22, first aeration pipe; 23, second aeration pipe; 24, aeration head; 25, gas injection pipe; 26, anti-sediment bottom assembly; 261, sealing cylinder; 262, sliding column; 263, sealing ring; 264, push disc; 265, pressurizing pipe; 3, intermittent adjustment assembly; 31, fixed frame; 32, second support rod; 33, cavity sealing box; 34, worm gear; 35, adjustment hole; 36, rubber disc; 37, conveying pipe; 38, mounting pipe; 39, worm; 4, motor; 5, water distribution assembly; 51, fixed rod; 52, water distribution pipe; 53, electric telescopic rod; 54, cleaning brush; 55, filter plate; 56, blowdown pipe; 57, sealing plug. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to 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 the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0024] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.
[0025] Please refer to Figures 1-5 The present application provides a technical solution:
[0026] The energy-saving decomposition tank based on sewage aerobic COD treatment, including hydrolysis acidification tank body 1, the inner side of hydrolysis acidification tank body 1 is fixedly connected with closed loop aeration assembly 2, the outside of hydrolysis acidification tank body 1 is fixedly connected with intermittent adjustment assembly 3, the top of the inner wall of hydrolysis acidification tank body 1 is fixedly connected with water distribution assembly 5, closed loop aeration assembly 2 includes two corresponding first support rods 21, one end of first support rod 21 is fixedly connected with first aeration pipe 22, first aeration pipe 22 and second aeration pipe 23 are mutually penetrated, first aeration pipe 22 is shaped as '' U '' type, two first aeration pipes 22 are symmetrically arranged, second aeration pipe 23 is fixedly connected between two first aeration pipes 22, the top of first aeration pipe 22 and second aeration pipe 23 is fixedly connected with aeration head 24, one side of one of first aeration pipe 22 is fixedly connected with injection pipe 25, the lower side of first aeration pipe 22 is equipped with anti-sediment bottom assembly 26, intermittent adjustment assembly 3 includes fixed frame 31, both sides of the middle part of fixed frame 31 are fixedly connected with second support rod 32, the inner side of second support rod 32 is fixedly connected with cavity sealing box 33, worm gear 34 is rotatably connected between two cavity sealing boxes 33, adjusting hole 35 is formed in the inner side top of worm gear 34, the inner wall of one of cavity sealing boxes 33 is fixedly connected with rubber disc 36, the top and bottom of rubber disc 36 are fixedly connected with conveying pipe 37, the outer side of another cavity sealing box 33 is fixedly connected with mounting pipe 38.
[0027] As a further implementation of the scheme, the anti-sediment bottom assembly 26 includes a sealing cylinder 261, a sliding column 262 is slidably connected to the middle part of the sealing cylinder 261, a sealing ring 263 is fixedly connected to the middle part of the sliding column 262, the surface of the sealing ring 263 and the inner wall of the sealing cylinder 261 are in sliding fit, a push disc 264 is fixedly connected to the top end of the sliding column 262, the push disc 264 is in sliding fit with the bottom of the inner wall of the hydrolysis acidification tank body 1, and a pressurizing pipe 265 is fixedly connected to the bottom of the sealing cylinder 261.
[0028] As a further implementation of the scheme, a worm 39 is rotatably connected to the top of the inner side of the fixed frame 31, the worm 39 is in meshing connection with the worm gear 34, a motor 4 is fixedly connected to the top of the fixed frame 31, the telescopic end of the motor 4 is fixedly connected with one end of the worm 39, the transmission shaft of the motor 4 is controlled to rotate intermittently, and the rotation angle of the worm gear 34 is 180 degrees each time, so as to realize the position adjustment of the adjusting hole 35.
[0029] As a further implementation of the present scheme, the surface of the rubber disc 36 is in contact with the inner side of the worm wheel 34, and the two delivery pipes 37 are arranged symmetrically up and down, the inner diameter of the delivery pipe 37 matches the inner diameter of the adjusting hole 35, one end of the top delivery pipe 37 is fixedly connected with one end of the gas injection pipe 25, and one end of the bottom delivery pipe 37 is fixedly connected with one end of the pressurizing pipe 265. The intermittent control of the delivery direction of oxygen can be realized by such arrangement. When the oxygen is delivered to the top delivery pipe 37, the contact between the COD sewage and the sludge is strengthened by using the short-term aeration operation, the organic matter reaction is promoted, and the separation of the sludge and water is better. When the oxygen is delivered to the bottom delivery pipe 37, the up and down movement of the push disc 264 can be controlled by using the pneumatic control, so as to reduce the amount of active sludge deposited at the bottom of the tank.
[0030] As a further implementation of the present scheme, the water distribution assembly 5 includes two corresponding fixed rods 51, and a water distribution pipe 52 is fixedly connected between the two fixed rods 51. An electric telescopic rod 53 is fixedly connected to the top of one side of the water distribution pipe 52, and the telescopic end of the electric telescopic rod 53 extends to the inside of the water distribution pipe 52. A cleaning brush 54 is fixedly connected to the telescopic end of the water distribution pipe 52. A filter plate 55 is fixedly connected to the top of the inner wall of the water distribution pipe 52. A blowdown pipe 56 is fixedly connected to the top of the other side of the electric telescopic rod 53. A sealing plug 57 is clamped to one end of the blowdown pipe 56. Such arrangement can reduce the phenomenon of blockage of the water distribution pipe 52 and the inability to water.
[0031] As a further implementation of the present scheme, the cleaning brush 54 is arranged above the filter plate 55 and is in sliding fit between the cleaning brush 54 and the filter plate 55. The blowdown pipe 56 is of an inclined structure. Such arrangement can make the impurities slide along the inner wall of the blowdown pipe 56, and the blowdown is more convenient.
[0032] Work flow: through the water distribution pipe 52 to be treated sewage into the interior of the hydrolysis acidification tank main body 1. In the process, the sludge impurities in the sewage will be intercepted by the filter plate 55 on its surface, and the filtered clear solution will flow along the inner wall of the water distribution pipe 52 smoothly into the hydrolysis acidification tank main body 1, in order to facilitate the cleaning of these residual sludge impurities, just pull out the sealing plug 57 at one end of the sewage pipe 56, and drive the cleaning brush 54 to move horizontally by controlling the telescopic end of the electric telescopic rod 53, the cleaning brush 54 effectively pushes the impurities to the direction of the sewage pipe 56, and the impurities slide along the inner wall of the sewage pipe 56, so as to realize the cleaning of the surface of the filter plate 55, reduce the phenomenon that the water distribution pipe 52 is blocked and cannot be filled with water, one end of the installation pipe 38 is connected with the outside oxygen pump through the connecting pipe, and the motor 4 is started, the transmission shaft of the motor 4 is intermittently rotated, and the angle of the worm gear 34 is 180 degrees each time, the transmission shaft of the motor 4 drives the worm 39 to move synchronously, and the worm 39 drives the meshing worm gear 34 to rotate, the installation pipe 38 on both sides provides support for the rotation of the worm gear 34, and the gas in the installation pipe 38 is transported to the adjusting hole 35 in the inner wall of the cavity sealing box 33. Because the rubber disc 36 is attached to the inside of the worm gear 34, the air tightness is guaranteed. When the adjusting hole 35 is rotated to the top of the delivery pipe 37, the oxygen is transported to the injection pipe 25 along the delivery pipe 37, and then to the first aeration pipe 22 along the injection pipe 25. The first aeration pipe 22 and the second aeration pipe 23 form a closed loop aeration channel. Until the aeration head 24 completes the aeration operation of the filler and the sewage mixture in the hydrolysis acidification tank main body 1, the short-term aeration operation strengthens the contact between the COD sewage and the sludge, promotes the organic matter reaction, helps the better separation of the sludge and water, and reduces the use cost of the acidification tank. When the adjusting hole 35 is rotated to the bottom of the delivery pipe 37, the oxygen is transported to the sealing cylinder 261 along the pressure pipe 265. The air pressure in the inside of the sealing cylinder 261 pushes the slide column 262 to move upward through the sealing ring 263. The slide column 262 pushes the sludge above the push disc 264 to move upward. When the inside of the sealing cylinder 261 is no longer affected by the air pressure, the push disc 264 falls. Through the up-down reciprocating circulation, the amount of activated sludge deposited at the bottom of the tank is reduced, the process of converting soluble COD into BOD is accelerated, and the biodegradability of the hydrolysis acidification tank is improved.
[0033] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. Energy-saving decomposition tank based on sewage aerobic COD treatment, comprising a hydrolysis acidification tank main body (1), characterized in that: The inner side of the hydrolysis acidification tank body (1) is fixedly connected with a closed-loop aeration assembly (2), the outer side of the hydrolysis acidification tank body (1) is fixedly connected with an intermittent adjusting assembly (3), and the top of the inner wall of the hydrolysis acidification tank body (1) is fixedly connected with a water distribution assembly (5); The closed-loop aeration assembly (2) comprises two corresponding first supporting rods (21), one end of the first supporting rod (21) is fixedly connected with a first aeration pipe (22), the two first aeration pipes (22) are fixedly connected with a second aeration pipe (23), the top end of the first aeration pipe (22) and the second aeration pipe (23) is fixedly connected with an aeration head (24), one side of one of the first aeration pipes (22) is fixedly connected with a gas injection pipe (25), and the lower side of the first aeration pipe (22) is provided with an anti-sediment assembly (26). The intermittent adjusting assembly (3) comprises a fixed frame (31), both sides of the middle portion of the fixed frame (31) are fixedly connected with second supporting rods (32), the inner side of the second supporting rod (32) is fixedly connected with a cavity sealing box (33), the two cavity sealing boxes (33) are rotatably connected with a worm wheel (34), the inner side top of the worm wheel (34) is provided with an adjusting hole (35), the inner wall of one of the cavity sealing boxes (33) is fixedly connected with a rubber disc (36), the top and bottom of the rubber disc (36) are fixedly connected with conveying pipes (37), and the outer side of the other cavity sealing box (33) is fixedly connected with a mounting pipe (38).
2. The energy-saving decomposition tank based on sewage aerobic COD treatment according to claim 1, characterized in that: The anti-sediment assembly (26) comprises a sealing cylinder (261), the middle portion of the sealing cylinder (261) is slidably connected with a sliding column (262), the middle portion of the sliding column (262) is fixedly connected with a sealing ring (263), the surface of the sealing ring (263) and the inner wall of the sealing cylinder (261) are in up-and-down sliding fit, the top end of the sliding column (262) is fixedly connected with a push disc (264), the outer side of the push disc (264) and the bottom of the inner wall of the hydrolysis acidification tank body (1) are in sliding fit, and the bottom of the sealing cylinder (261) is fixedly connected with a pressurizing pipe (265).
3. The energy-saving decomposition tank based on sewage aerobic COD treatment according to claim 1, characterized in that: The top of the inner side of the fixed frame (31) is rotatably connected with a worm (39), the worm (39) and the worm wheel (34) are in meshing connection, the top of the fixed frame (31) is fixedly connected with a motor (4), and one end of the motor (4) and one end of the worm (39) are fixedly connected.
4. The energy-saving decomposition tank based on sewage aerobic COD treatment according to claim 2, characterized in that: The surface of the rubber disc (36) is attached to the inner side of the worm wheel (34), the two conveying pipes (37) are symmetrically arranged in an up-and-down manner, the inner diameter of the conveying pipe (37) matches the inner diameter of the adjusting hole (35), one end of the top conveying pipe (37) is fixedly connected with one end of the gas injection pipe (25), and one end of the bottom conveying pipe (37) is fixedly connected with one end of the pressurizing pipe (265).
5. The energy-saving decomposition tank based on sewage aerobic COD treatment according to claim 1, characterized in that: The water distribution assembly (5) comprises two corresponding fixed rods (51), two fixed rods (51) are fixedly connected with a water distribution pipe (52), one side of the top of the water distribution pipe (52) is fixedly connected with an electric telescopic rod (53), the telescopic end of the electric telescopic rod (53) extends to the inside of the water distribution pipe (52), the telescopic end of the water distribution pipe (52) is fixedly connected with a cleaning brush (54), the top of the inner wall of the water distribution pipe (52) is fixedly connected with a filter plate (55), the top of the other side of the electric telescopic rod (53) is fixedly connected with a blowdown pipe (56), one end of the blowdown pipe (56) is clamped with a sealing plug (57).
6. The energy-saving decomposition tank based on sewage aerobic COD treatment according to claim 5, characterized in that: The cleaning brush (54) is arranged above the filter plate (55), and the cleaning brush (54) and the filter plate (55) are in sliding fit, and the blowdown pipe (56) is in inclined structure.
7. The energy-saving decomposition tank based on sewage aerobic COD treatment according to claim 1, characterized in that: The first aeration pipe (22) and the second aeration pipe (23) are mutually penetrated, the first aeration pipe (22) is in "U" shape, and the two first aeration pipes (22) are symmetrically arranged.