Hydrolysis acidification equipment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to hydrolytic acidification equipment which comprises a hydrolytic tank main body, a stirring device, an automatic dosing device and a circulating device, a left partition plate and a right partition plate are arranged in the hydrolytic tank main body, and an inner cavity of the hydrolytic tank main body is divided into a reaction cavity, an approach channel cavity and a treatment cavity by the left partition plate and the right partition plate; a water inlet pipe is arranged on the hydrolysis tank main body at the left part of the reaction cavity, an overflow channel communicated with the reaction cavity and the approach channel cavity is formed at the upper end of the left partition plate, the lower part of the approach channel cavity is communicated with the lower part of the treatment cavity through a water conduit, and sewage flowing out of the approach channel cavity is uniformly dispersed at the lower part of the treatment cavity. The device is reasonable and compact in structure, convenient to use, capable of effectively improving the hydrolysis efficiency through the stirring device, the automatic dosing device and the circulating device, small in structural size, small in occupied area, high in hydrolysis efficiency, not prone to blockage and free of cleaning, and has the advantages of being safe, labor-saving, simple, convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and particularly relates to a hydrolysis acidification device. Background Art

[0002] At present, hydrolysis acidification is one of the effective means for treating high-concentration or refractory organic industrial wastewater. The hydrolysis treatment method is a method between aerobic and anaerobic treatment methods. Combining with other processes can reduce the treatment cost and improve the treatment efficiency. The hydrolysis acidification process controls anaerobic treatment in the first and second stages with shorter reaction times according to the different growth rates of methanogens and hydrolysis acid-producing bacteria. That is, under the action of a large number of hydrolysis bacteria and acidification bacteria, insoluble organic matter is hydrolyzed into soluble organic matter, and macromolecular substances that are difficult to biodegrade are converted into small-molecular substances that are easy to biodegrade, thereby improving the biodegradability of the wastewater and laying a good foundation for subsequent treatment. Therefore, the hydrolysis acidification tank is generally set at the very front end of the process flow to improve the biodegradability of the wastewater and provide a good water quality environment for subsequent biochemical treatment. The hydrolysis acidification tank has relatively high requirements for uniform water distribution and full mixing of organic matter. The existing sewage hydrolysis acidification treatment equipment has the following defects in the use process: due to the simple structure, there are problems of large floor area and low hydrolysis efficiency. At the same time, during the hydrolysis acidification treatment process, the sludge is prone to concentrated accumulation, thus prone to blockage and needs to be frequently cleaned. If not cleaned in time, it will not only reduce the decomposition efficiency, but also cause the sludge in the existing hydrolysis acidification reaction tank to not contact the hydrolysis bacteria sufficiently, further reducing the treatment efficiency. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a hydrolysis acidification device, which overcomes the above-mentioned deficiencies of the prior art and can effectively solve the problems of large floor area, low hydrolysis efficiency, easy blockage and the need for timely cleaning existing in the existing sewage hydrolysis acidification treatment equipment.

[0004] The technical solution adopted by the utility model is as follows: a hydrolysis and acidification device, which includes a hydrolysis tank body, a stirring device, an automatic dosing device, and a circulation device. Inside the hydrolysis tank body, a left partition board and a right partition board are provided, and the inner cavity of the hydrolysis tank body is divided into a reaction chamber, a diversion channel chamber, and a treatment chamber. The height of the left partition board is less than the height of the upper end of the hydrolysis tank body. An inlet pipe is provided on the hydrolysis tank body at the left part of the reaction chamber. The upper end of the left partition board forms an overflow channel connecting the reaction chamber and the diversion channel chamber. The lower part of the diversion channel chamber is connected to the lower part of the treatment chamber through a diversion pipe, so that the sewage flowing out is evenly distributed at the lower part of the treatment chamber. A cover plate is provided at the upper end of the hydrolysis tank body corresponding to the upper part of the reaction chamber. The cover plate is provided with a stirring device and an automatic dosing device. The stirring device includes a stirring shaft, a stirring head, and stirring blades. The lower part of the stirring shaft is located in the reaction chamber. A stirring head is fixed on the stirring shaft through a connecting cross bar, and stirring blades are fixed on the stirring head. A stirring motor is fixedly installed at the upper end of the cover plate. The lower end of the output shaft of the stirring motor is fixedly installed with a driving wheel. The upper end of the stirring shaft is fixedly installed with a driven wheel. The driving wheel is connected to the driven wheel through a transmission belt and can drive the stirring shaft to rotate. A sludge collection pipe network is provided in the treatment chamber above the diversion pipe. The right end of the sludge collection pipe network extends outside the treatment chamber and is connected to a circulation device capable of transporting the sludge in the treatment chamber to the reaction chamber. An effluent weir is provided at the upper end of the treatment chamber above the sludge collection pipe network. Biological fillers are provided between the sludge collection pipe network and the effluent weir. An outlet pipe is provided on the hydrolysis tank body near the right end of the effluent weir. The liquid inlet of the outlet pipe is communicated with the bottom of the right end of the effluent weir.

[0005] The following is a further optimization and / or improvement of the above application technical solution:

[0006] Further, as a preference, the circulation device includes a sludge conveying pipe, a circulation pump, a circulation pipe, and a sludge discharge pipe. The outlet of the sludge collection pipe network is communicated with the inlet of the circulation pump through the sludge conveying pipe. The outlet of the circulation pump is connected with a three-way joint. The first outlet of the three-way joint is connected with a circulation pipe. The outlet of the circulation pipe is communicated with the reaction chamber of the hydrolysis tank body. The second outlet of the three-way joint is connected with a sludge discharge pipe. The outlet of the sludge discharge pipe is connected with a sludge thickening tank. A circulation control valve is provided on the circulation pipe, and a sludge discharge control valve is provided on the sludge discharge pipe.

[0007] Further, preferably, the automatic chemical dosing device includes a medicine bucket seat, a liquid medicine bucket, a connecting pipe, a first solenoid valve, a second solenoid valve, a chute device, a floating block, and a touch push rod. A medicine adding hole is provided on the cover plate to the left of the left partition plate. The upper end of the cover plate corresponding to the position of the medicine adding hole is fixed with a medicine bucket seat. The liquid medicine bucket is fixedly installed in the medicine bucket seat through a locking device. A connecting pipe is installed at the bottom of the liquid medicine bucket. The bottom cavity of the liquid medicine bucket is communicated with the reaction cavity through the inner cavity of the connecting pipe. A first solenoid valve with a touch switch is provided at the lower end of the connecting pipe. A second solenoid valve is provided on the water inlet pipe. A chute device is fixedly installed at the upper left side of the left partition plate. The floating block is installed on the chute device through a slider and can move up and down with the liquid level. A touch push rod capable of touching the touch switch is fixed on the floating block. The touch switch can close the second solenoid valve and open the first solenoid valve at the same time.

[0008] Further, preferably, the pipe wall of the water diversion pipe is provided with pipe side micropores. The pipe side micropores are distributed on the front and back sides of the water diversion pipe and are arranged in a staggered manner. The included angle between the axis of the pipe side micropores and the horizontal plane is 45° and faces the upper side.

[0009] Further, preferably, a number of spike devices are provided on the inner cavity wall of the reaction cavity. The spike devices are spike-shaped protrusions arranged at uniform intervals.

[0010] Further, preferably, a diversion cone is provided at the bottom of the reaction cavity. The upper side of the diversion cone is an inclined surface that is high in the middle and low around. Silt cleaning pipes are respectively provided at the left and right edges of the diversion cone. A silt cleaning valve capable of controlling the on-off of the silt cleaning pipe is provided on the silt cleaning pipe. The upper end of the silt cleaning pipe is fixed on the bottom wall of the reaction cavity. The lower end of the silt cleaning pipe is provided with a pressure relief port in the shape of a cone with a small upper part and a large lower part.

[0011] Further, preferably, an exhaust pipe with an exhaust valve is provided on the cover plate, and a pressure gauge is installed on the exhaust valve.

[0012] The structure of the utility model is reasonable and compact, and it is convenient to use. Through the stirring device, the automatic chemical dosing device and the circulation device, it can effectively improve the hydrolysis efficiency. It has the characteristics of a small structural volume, a small floor area, a high hydrolysis efficiency, not easy to be blocked, and does not need to be cleaned, and is safe, labor-saving, simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view sectional structure schematic diagram of Embodiments 1-7 of the utility model;

[0014] Figure 2 is Figure 1 the enlarged structure schematic diagram at A in

[0015] Legend: 1 is the main body of the hydrolysis tank, 2 is the left partition board, 3 is the right partition board, 4 is the reaction chamber, 5 is the diversion channel chamber, 6 is the treatment chamber, 7 is the overflow channel, 8 is the water inlet pipe, 9 is the cover plate, 10 is the stirring shaft, 11 is the stirring head, 12 is the stirring blade, 13 is the water inlet pipe, 14 is the stirring motor, 15 is the driving wheel, 16 is the driven wheel, 17 is the transmission belt, 18 is the sludge collection pipe network, 19 is the water outlet weir, 20 is the biological filler, 21 is the water outlet pipe, 22 is the sludge discharge pipe, 23 is the circulation pump, 24 is the circulation pipe, 25 is the sludge discharge pipe, 26 is the tee joint, 27 is the circulation control valve, 28 is the sludge discharge control valve, 29 is the medicine barrel seat, 30 is the liquid medicine barrel, 31 is the connecting pipe, 32 is the first solenoid valve, 33 is the second solenoid valve, 34 is the chute device, 35 is the floating block, 36 is the touch push rod, 37 is the medicine adding hole, 38 is the locking device, 39 is the micropores on the pipe side, 40 is the spiky protrusion, 41 is the diversion cone, 42 is the dredging pipe, 43 is the dredging valve, 44 is the pressure relief port, 45 is the exhaust valve, 46 is the exhaust pipe. Detailed implementation mode

[0016] The present utility model will be further described below in conjunction with the accompanying drawings and the detailed implementation mode.

[0017] Embodiment 1:

[0018] According to the attached drawings of the specification Figure 1-2As shown in the figure, the utility model provides a hydrolysis acidification device, which includes a hydrolysis tank body 1, a stirring device, an automatic dosing device and a circulation device. A left partition plate 2 and a right partition plate 3 are arranged in the hydrolysis tank body 1, and the inner cavity of the hydrolysis tank body 1 is divided into a reaction chamber 4, a diversion channel chamber 5 and a treatment chamber 6. The height of the left partition plate 2 is less than the height of the upper end of the hydrolysis tank body 1. An inlet pipe 13 is provided on the hydrolysis tank body 1 at the left part of the reaction chamber 4. An overflow channel 7 connecting the reaction chamber 4 and the diversion channel chamber 5 is formed at the upper end of the left partition plate 2. The lower part of the diversion channel chamber 5 is connected to the lower part of the treatment chamber 6 through a diversion pipe 8, so that the sewage flowing out is evenly distributed at the lower part of the treatment chamber 6. A cover plate 9 is provided at the upper end of the hydrolysis tank body 1 corresponding to the upper part of the reaction chamber 4. A stirring device and an automatic dosing device are provided on the cover plate 9. The stirring device includes a stirring shaft 10, a stirring head 11 and stirring blades 12. The lower part of the stirring shaft 10 is located in the reaction chamber 4. A stirring head 11 is fixed on the stirring shaft 10 through a connecting cross bar. Stirring blades 12 are fixed on the stirring head 11. A stirring motor 14 is fixedly installed at the upper end of the cover plate 9. A driving wheel 15 is fixedly installed at the lower end of the output shaft of the stirring motor 14. A driven wheel 16 is fixedly installed at the upper end of the stirring shaft 10. The driving wheel 15 is connected to the driven wheel 16 through a transmission belt 17 and can drive the stirring shaft 10 to rotate. A sludge collection pipe network 18 is provided in the treatment chamber 6 above the diversion pipe 8. The right end of the sludge collection pipe network 18 extends outside the treatment chamber 6 and is connected to a circulation device capable of transporting the sludge in the treatment chamber 6 into the reaction chamber 4. An effluent weir 19 is provided at the upper end of the treatment chamber 6 above the sludge collection pipe network 18. A biological filler 20 is provided between the sludge collection pipe network 18 and the effluent weir 19. An outlet pipe 21 is provided on the hydrolysis tank body 1 near the right end of the effluent weir 19. The inlet of the outlet pipe 21 is communicated with the bottom of the right end of the effluent weir 19. During actual manufacturing, it is necessary to make the position of the outlet of the inlet pipe 13 higher than the upper end of the left partition plate 2, so as to facilitate the formation of a stable overflow channel 7 at the upper end of the left partition plate 2. The connecting cross bar and the stirring head 11 fixed on the stirring shaft 10 can be provided with two or three layers, and the connecting cross bars of adjacent two layers are arranged in a staggered manner. In this way, the stirring heads 11 fixed at the lower ends of the connecting cross bars are also arranged in a staggered manner, and the stirring effect is better.

[0019] The hydrolysis efficiency can be effectively improved through the stirring device, the automatic chemical dosing device and the circulation device, making the utility model have the advantages of compact structure, small floor area, high hydrolysis efficiency, not easy to be blocked, and no need to be cleaned. Through the hierarchical arrangement of the water outlet weir 19, the biological filler 20, the sludge collection pipe network 18 and the water diversion pipe 8, the water flow below the biological filler 20 is more evenly mixed, which helps the flocculent condensation and the settlement and removal of the flocs, and the precipitation effect is better. The biological filler 20 provides a living place for microorganisms. The hydrolytic acidification bacteria attach to the filler to form a biofilm. When the sewage flows through the filler, the biofilm captures the organic matter in the water for hydrolytic acidification reaction, which can make the types and quantities of the hydrolytic acidification bacteria relatively stable, and is more conducive to the stable progress of the hydrolytic acidification reaction. By setting the biological filler 20, the utility model has the function of a biochemical tank, can reduce the number of tank bodies, lower the construction investment and operation steps, and thus significantly reduces the operation cost. Since the sewage flowing out of the water diversion pipe 8 is evenly distributed at the lower part of the treatment chamber 6, it plays a role in fully mixing the sewage. The sewage rises and is decomposed by a large number of hydrolytic bacteria after flowing through the biological filler 20. Many insoluble organic matters are hydrolyzed into soluble substances, and macromolecular and difficult-to-biodegrade substances are converted into small-molecular and easy-to-biodegrade substances. The sewage circulates in the aerobic zone and anoxic zone between the water outlet weir 19, the biological filler 20 and the sludge collection pipe network 18. Through the nitrification in the aerobic zone and the denitrification in the anoxic zone, the organic matter in the sewage undergoes a short-range denitrification reaction in the anoxic zone during the circulation process, with lower energy and carbon source consumption, faster denitrification rate, less sludge volume, smaller tank volume, and less land occupation. The wastewater that has experienced complete hydrolytic acidification, aerobic and anoxic treatment descends from the bottom of the biological filler 20 to the sludge collection pipe network 18 for precipitation. The precipitated hydrolytic acidification bacteria are sent into the reaction chamber 4 by the circulation device and mixed with the sewage to be treated again by the stirring device. After being mixed with the medicament added by the automatic chemical dosing device, it enters the diversion channel chamber 5 and is transported to the lower part of the treatment chamber 6 again by the water diversion pipe 8 and is evenly distributed, while the treated sewage gradually rises and overflows from the bottom of the water outlet weir 19 to the water outlet pipe 21 to achieve water outlet.

[0020] Example 2:

[0021] According to the appended drawings of the specification Figure 1-2As shown in the figure, the difference between this embodiment and Embodiment 1 is that the circulation device includes a sludge conveying pipe 22, a circulation pump 23, a circulation pipe 24 and a sludge discharge pipe 25. The outlet of the sludge collecting pipe network 18 is connected to the inlet of the circulation pump 23 through the sludge conveying pipe 22. A tee joint 26 is connected to the outlet of the circulation pump 23. The first outlet of the tee joint 26 is connected to the circulation pipe 24, and the outlet of the circulation pipe 24 is connected to the reaction chamber 4 of the hydrolysis tank main body 1. The second outlet of the tee joint 26 is connected to the sludge discharge pipe 25, and the outlet of the sludge discharge pipe 25 is connected to a sludge thickening tank. A circulation control valve 27 is provided on the circulation pipe 24, and a sludge discharge control valve 28 is provided on the sludge discharge pipe 25. After the water flowing out of the diversion channel chamber 5 enters the diversion pipe 8, it is evenly distributed at the lower part of the treatment chamber 6 through the diversion pipe 8. During the rising process of the mixed liquid, the sludge sinks downward due to its own gravity, and the wastewater flows upward and flows out of the treatment chamber 6 through the water outlet weir 19 and the water outlet pipe 21. A sludge collecting pipe network 18 is provided at a position near the middle of the treatment chamber 6. After the sludge accumulates to a certain concentration at the bottom, the sludge will also rise with the water. When the sludge layer reaches the sludge collecting pipe network 18, the sludge is circulated to the reaction chamber 4 by the circulation pump 23. On the one hand, this maintains the sludge concentration in the reaction chamber 4, and on the other hand, it prevents the treatment chamber 6 from running off sludge. The rising flow rate of the treatment chamber 6 should not exceed 2 m / h. Through the sludge discharge pipe 25, the excess hydrolyzed acidified sludge can be discharged into the sludge thickening tank.

[0022] Embodiment 3:

[0023] According to the attached drawings of the specification Figure 1-2As shown in the figure, the difference between this embodiment and Embodiments 1-2 is that the automatic chemical dosing device includes a medicine barrel seat 29, a liquid medicine barrel 30, a connecting pipe 31, a first electromagnetic valve 32, a second electromagnetic valve 33, a chute device 34, a floating block 35 and a touch push rod 36. A medicine adding hole 37 is provided on the cover plate 9 to the left of the left partition plate 2. The upper end of the cover plate 9 corresponding to the position of the medicine adding hole 37 is fixed with the medicine barrel seat 29. The liquid medicine barrel 30 is fixedly installed in the medicine barrel seat 29 through a buckle device 38. A connecting pipe 31 is installed at the bottom of the liquid medicine barrel 30. The bottom cavity of the liquid medicine barrel 30 is communicated with the reaction chamber 4 through the inner cavity of the connecting pipe 31. A first electromagnetic valve 32 with a touch switch is provided at the lower end of the connecting pipe 31. A second electromagnetic valve 33 is provided on the water inlet pipe 13. A chute device 34 is fixed to the upper left side of the left partition plate 2. The floating block 35 is installed on the chute device 34 through a slider and can move up and down with the liquid level. A touch push rod 36 capable of touching the touch switch is fixed on the floating block 35. The touch switch can close the second electromagnetic valve 33 and open the first electromagnetic valve 32 at the same time. During operation, sewage flows into the reaction chamber 4 through the water inlet pipe 13. The floating block 35 rises with the liquid level until the touch push rod 36 touches the touch switch of the first electromagnetic valve 32. The touch switch sends a signal to close the second electromagnetic valve 33, and the water inlet pipe 13 stops delivering sewage into the reaction chamber 4. At the same time, the first electromagnetic valve 32 is opened, and the medicine in the liquid medicine barrel 30 flows into the reaction chamber 4 through the connecting pipe 31. Then, the stirring device is started to stir the medicine in the reaction chamber 4 evenly for hydrolysis reaction.

[0024] Embodiment 4:

[0025] According to the appended drawings of the specification Figure 1-2 As shown in the figure, the difference between this embodiment and Embodiments 1-3 is that the pipe wall of the water diversion pipe 8 is provided with pipe side micropores 39. The pipe side micropores 39 are distributed on the front and back sides of the water diversion pipe 8 and are arranged in a staggered manner. The angle between the axis of the pipe side micropores 39 and the horizontal plane is 45° and is directed obliquely upward. The pipe side micropores 39 are arranged in a staggered manner and are directed obliquely upward, which can enable the water diversion pipe 8 to achieve uniform water distribution, thereby ensuring that the sewage sprayed by the water diversion pipe 8 is fully mixed with the sewage in the treatment chamber 6, which is beneficial to the formation of a mixed flow state of the liquid flow. Due to the relatively high water flow velocity, it is beneficial to make the mud and water fully mixed under the stirring action of the water flow, make the microorganisms fully mixed with the sewage, increase the contact area between the microorganisms and the sewage, reduce the precipitation of microorganisms at the bottom of the treatment chamber 6, and strengthen the adhesion of the microorganisms on the biological filler 20, further strengthening the hydrolysis effect.

[0026] Embodiment 5:

[0027] According to the appended drawings of the specification Figure 1-2As shown, the difference between this embodiment and Embodiments 1-4 is that a number of spike devices are provided on the inner cavity wall of the reaction chamber 4, and the spike devices are spike-shaped protrusions 40 arranged at uniform intervals. The spike-shaped protrusions 40 can cooperate with the stirring blades 12 of the stirring device to further improve the stirring and mixing effect.

[0028] Embodiment 6:

[0029] According to the attached drawings of the specification Figure 1-2 As shown, the difference between this embodiment and Embodiments 1-5 is that a flow guiding frustum 41 is provided at the bottom of the reaction chamber 4. The upper side of the flow guiding frustum 41 is an inclined surface that is high in the middle and low around. Cleaning pipes 42 are respectively provided at the left and right edges of the flow guiding frustum 41. A cleaning valve 43 capable of controlling the on-off of the cleaning pipe 42 is provided on the cleaning pipe 42. The upper end of the cleaning pipe 42 is fixed on the bottom wall of the reaction chamber 4, and a pressure relief port 44 with a smaller upper part and a larger lower part in a conical shape is provided at the lower end of the cleaning pipe 42. The flow guiding frustum 41 is used to reduce the concentrated accumulation of sludge. The middle of the flow guiding frustum 41 is relatively higher than the edge position, and inclined surfaces are formed on both sides of the middle. In actual use, the sludge automatically slides to both sides of the flow guiding frustum 41, and the accumulation is more uniform. The cleaning of the sludge that is difficult to degrade at the bottom of the reaction chamber 4 can be realized through the cleaning pipe 42 to avoid blockage. The pressure relief port 44 with a smaller upper part and a larger lower part is provided to reduce the pressure when the sludge is discharged, and can effectively avoid sludge sputtering, making the sludge discharge smoother.

[0030] Embodiment 7:

[0031] According to the attached drawings of the specification Figure 1-2 As shown, the difference between this embodiment and Embodiments 1-6 is that an exhaust pipe 46 with an exhaust valve 45 is provided on the cover plate 9, and a pressure gauge is installed on the exhaust valve 45. In actual manufacturing and use, the exhaust valve 45 can also be connected to a display screen to display the pressure data. The gas generated in the reaction chamber 4 can be discharged in time through the exhaust pipe 46, which is safer and more reliable for users to observe and perform pressure relief operations.

[0032] The present utility model is represented with reference to the attached drawings of the specification Figure 1 Among them, the directional terms such as "upper", "lower", "left", "right", "top", "bottom", etc. mentioned are only for better and clearer description and understanding of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model.

[0033] The above describes the preferred embodiments of the present utility model, but it cannot be understood as a limitation to the claims. The present utility model is not limited to the above embodiments, and its specific structure is allowed to change. All changes made within the protection scope of the independent claims of the present utility model are within the protection scope of the present utility model.

Claims

1. A hydrolysis and acidification device, characterized in that: It includes a hydrolysis tank main body, a stirring device, an automatic chemical dosing device and a circulation device. Inside the hydrolysis tank main body, there are a left partition plate and a right partition plate, which divide the inner cavity of the hydrolysis tank main body into a reaction chamber, a diversion channel chamber and a treatment chamber. The height of the left partition plate is less than the height of the upper end of the hydrolysis tank main body. An inlet pipe is provided on the hydrolysis tank main body at the left part of the reaction chamber. The upper end of the left partition plate forms an overflow channel connecting the reaction chamber and the diversion channel chamber. The lower part of the diversion channel chamber is connected to the lower part of the treatment chamber through a diversion pipe, and the sewage flowing out is evenly distributed at the lower part of the treatment chamber. Above the reaction chamber, a cover plate is provided at the upper end of the hydrolysis tank main body. The cover plate is provided with a stirring device and an automatic chemical dosing device. The stirring device includes a stirring shaft, a stirring head and stirring blades. The lower part of the stirring shaft is located in the reaction chamber. A stirring head is fixed on the stirring shaft through a connecting cross bar, and stirring blades are fixed on the stirring head. A stirring motor is fixedly installed at the upper end of the cover plate. The lower end of the output shaft of the stirring motor is fixedly installed with a driving wheel. The upper end of the stirring shaft is fixedly installed with a driven wheel. The driving wheel is connected to the driven wheel through a transmission belt and can drive the stirring shaft to rotate. A sludge collection pipe network is provided in the treatment chamber above the diversion pipe. The right end of the sludge collection pipe network extends outside the treatment chamber and is connected to a circulation device that can transport the sludge in the treatment chamber to the reaction chamber. An effluent weir is provided at the upper end of the treatment chamber above the sludge collection pipe network. Biological fillers are provided between the sludge collection pipe network and the effluent weir. An outlet pipe is provided on the hydrolysis tank main body near the right end of the effluent weir. The inlet of the outlet pipe is connected to the bottom of the right end of the effluent weir.

2. The hydrolytic acidification equipment according to claim 1, characterized in that, The circulation device includes a sludge conveying pipe, a circulation pump, a circulation pipe and a sludge discharge pipe. The outlet of the sludge collection pipe network is connected to the inlet of the circulation pump through the sludge conveying pipe. The outlet of the circulation pump is connected to a three-way joint. The first outlet of the three-way joint is connected to a circulation pipe, and the outlet of the circulation pipe is connected to the reaction chamber of the hydrolysis tank main body. The second outlet of the three-way joint is connected to a sludge discharge pipe, and the outlet of the sludge discharge pipe is connected to a sludge thickening tank. A circulation control valve is provided on the circulation pipe, and a sludge discharge control valve is provided on the sludge discharge pipe.

3. The hydrolytic acidification equipment according to claim 1 or 2, characterized in that, The automatic chemical dosing device includes a medicine barrel seat, a liquid medicine barrel, a connecting pipe, a first solenoid valve, a second solenoid valve, a chute device, a floating block and a touch push rod. A chemical dosing hole is provided on the cover plate to the left of the left partition plate. A medicine barrel seat is fixedly provided at the upper end of the cover plate corresponding to the position of the chemical dosing hole. The liquid medicine barrel is fixedly installed in the medicine barrel seat through a locking device. A connecting pipe is installed at the bottom of the liquid medicine barrel. The bottom cavity of the liquid medicine barrel is connected to the reaction chamber through the inner cavity of the connecting pipe. A first solenoid valve with a touch switch is provided at the lower end of the connecting pipe. A second solenoid valve is provided on the inlet pipe. A chute device is fixedly provided at the upper left part of the left partition plate. The floating block is installed on the chute device through a slider and can move up and down with the liquid level. A touch push rod that can touch the touch switch is fixed on the floating block. The touch switch can close the second solenoid valve and open the first solenoid valve at the same time.

4. A hydrolysis acidification device according to claim 1 or 2, characterized in that, The pipe wall of the diversion pipe is provided with micropores on the side. The micropores on the side are distributed on the front and back sides of the diversion pipe and are arranged in a staggered manner. The angle between the axis of the micropores on the side and the horizontal plane is 45° and faces the upper side.

5. The hydrolysis acidification equipment according to claim 3, characterized in that, The pipe wall of the water inlet pipe is provided with micropores on the side, and the micropores on the side are distributed on the front and back sides of the water inlet pipe and arranged in a staggered manner. The included angle between the axis of the micropores on the side and the horizontal plane is 45° and faces the upper side.

6. A hydrolysis acidification device according to claim 1 or 2 or 5, characterized in that, A number of spike devices are provided on the inner cavity wall of the reaction chamber, and the spike devices are spike-shaped protrusions arranged at equal intervals.

7. The hydrolytic acidification equipment according to claim 3, characterized in that A number of spike devices are provided on the inner cavity wall of the reaction chamber, and the spike devices are spike-shaped protrusions arranged at equal intervals.

8. An acid hydrolysis and acidification device according to claim 4, characterized in that A number of spike devices are provided on the inner cavity wall of the reaction chamber, and the spike devices are spike-shaped protrusions arranged at equal intervals.

9. The hydrolytic acidification equipment according to claim 6, characterized in that, A flow guiding frustum is provided at the bottom of the reaction chamber. The upper side of the flow guiding frustum is an inclined surface that is high in the middle and low around. Cleaning pipes are respectively provided at the left and right edges of the flow guiding frustum. A cleaning valve capable of controlling the on-off of the cleaning pipe is provided on the cleaning pipe. The upper end of the cleaning pipe is fixed on the bottom wall of the reaction chamber, and the lower end of the cleaning pipe is provided with a pressure relief port in a conical shape with a smaller upper part and a larger lower part.

10. A hydrolysis acidification device according to claim 9, characterized in that, An exhaust pipe with an exhaust valve is provided on the cover plate, and a pressure gauge is installed on the exhaust valve.

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