CN212174745U - Wastewater treatment equipment - Google Patents
Wastewater treatment equipment Download PDFInfo
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- CN212174745U CN212174745U CN202020760422.XU CN202020760422U CN212174745U CN 212174745 U CN212174745 U CN 212174745U CN 202020760422 U CN202020760422 U CN 202020760422U CN 212174745 U CN212174745 U CN 212174745U
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Abstract
The utility model belongs to the technical field of wastewater treatment equipment, and particularly discloses wastewater treatment equipment, which comprises a pretreatment device, a biochemical unit and a clean water tank; the pretreatment device comprises an air floatation unit; the air floatation unit comprises a pressurizing pump, a pressure dissolved air tank and an air floatation tank; one port of the pressure pump is communicated with a raw water pipeline, the other port of the pressure pump is communicated with the top end of the pressure dissolved air tank through a pressure pipeline, and a spray rod is vertically arranged in the center of the interior of the pressure dissolved air tank; a filter cylinder is sleeved outside the spray rod, a plurality of spray holes are formed in the surface of the spray rod, an air inlet hole is formed in the center of the bottom of the pressure dissolved air tank, the bottom end of the spray rod is communicated with the air inlet hole, and an air flotation tank is arranged on one side of the pressure dissolved air tank; the biochemical unit is arranged on one side of the air floatation unit and comprises an A/O biochemical tank and a membrane biological reaction tank; the A/O biochemical tank comprises a nitrification tank and a denitrification tank; the top end of the membrane biological reaction tank is communicated with the nitrification tank, and the bottom end of the membrane biological reaction tank is communicated with the clean water tank.
Description
Technical Field
The utility model relates to a waste water treatment equipment technical field specifically is a waste water treatment equipment.
Background
The existing wastewater treatment equipment enters a mixing zone after sewage is subjected to flocculation reaction and is in mixed contact with dissolved air water. The floc and small bubbles in the dissolved air water are mutually bonded, then enter an air floating area and float to the water surface along with the small bubbles to form scum. The clean water in the lower layer flows to the clean water tank through the water collector, part of the clean water flows back to be used as dissolved gas water, and the rest clean water flows out through the overflow port. Scum on the air flotation tank is scraped to a sludge tank by a scraper and finally discharged.
After the existing wastewater treatment equipment is used for a period of time, a water distributor in a pressure dissolved air tank is easily blocked by particles in wastewater, so that air cannot be dissolved in the wastewater, the slag removal effect is further reduced, and the pressure dissolved air tank is of a sealing structure, so that workers are difficult to replace the water distributor inside.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a waste water treatment equipment to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a wastewater treatment device comprises a pretreatment device, a biochemical unit and a clean water tank; the pretreatment device comprises an air floatation unit; the air floatation unit comprises a pressurizing pump, a pressure dissolved air tank and an air floatation tank; one port of the pressure pump is communicated with a raw water pipeline, and one side of the raw water pipeline is provided with a dosing tank; chemical agents are stored in the medicine feeding tank, and the medicine feeding tank is communicated with the raw water pipeline through a medicine feeding pipeline; the other port of the pressure pump is communicated with the top end of the pressure dissolved air tank through a pressure pipeline; one side of the top end of the pressure dissolved air tank is provided with an air release valve, and the center inside the pressure dissolved air tank is vertically provided with a spray rod; a filter cylinder is sleeved outside the spray rod, a plurality of spray holes are formed in the surface of the spray rod, an air inlet hole is formed in the center of the bottom of the pressure dissolved air tank, the bottom end of the spray rod is communicated with the air inlet hole, and the top end of the spray rod penetrates through the pressure dissolved air tank and is fixedly connected with the output end of the rotating motor; an air floatation tank is arranged on one side of the pressure dissolved air tank;
the biochemical unit is arranged on one side of the air floatation unit and comprises an A/O biochemical tank and a membrane biological reaction tank; the A/O biochemical tank comprises a nitrification tank and a denitrification tank; the denitrification tank is arranged on one side of the air floatation tank and is communicated with the air floatation tank through a pipeline, and the other side of the denitrification tank is communicated with a nitrification tank; the top end of the membrane biological reaction tank is communicated with the nitrification tank, a microfiltration membrane component is arranged in the membrane biological reaction tank, and the bottom end of the membrane biological reaction tank is communicated with the clean water tank.
Preferably, the chemical agent comprises a PAC flocculant and a PAM coagulant aid.
Preferably, the pressure dissolved air tank is communicated with the air floatation tank through a pipeline, and a pressure reducing valve is arranged in the pipeline.
Preferably, the top surface of the pressure dissolved air tank is provided with an annular through hole; the filter cartridge is characterized in that a fixing ring is arranged at the top of the filter cartridge, the diameter of the fixing ring is matched with that of the annular through hole, and sealing structures are arranged on two sides of the fixing ring.
Preferably, an air compressor is arranged below the pressure dissolved air tank, and the outlet end of the air compressor is communicated with the air inlet hole through a pipeline.
Preferably, a slag discharging mechanism is arranged above the air floatation tank.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a spray lance, with the cooperation of rotating electrical machines for the spray lance can dissolve the gas pitcher rotation at pressure, thereby makes more even distribution of air inside waste water, strengthens the treatment effect.
2. The utility model discloses be provided with in the spray lance outside and strain a section of thick bamboo, strain a section of thick bamboo and can prevent the orifice that the granule jam spray lance surface in the waste water set up to make the air can't dissolve in the waste water, cause the not good condition of slagging-off effect, strain a section of thick bamboo top and be provided with solid fixed ring, gu fixed ring is fixed in the annular through-hole department that pressure dissolved the gas pitcher top surface, be convenient for strain the change of a section of thick bamboo when straining a section of thick bamboo and taking place.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
FIG. 2 is an internal structure view of the pressure dissolved air tank of the present invention;
fig. 3 is a schematic view of the connection between the pressure dissolved air tank and the filter cartridge according to the present invention.
In the figure: 1. a pressure pump; 2. a raw water pipeline; 3. a medicine adding tank; 4. a dosing pipeline; 5. a pressurized conduit; 6. a deflation valve; 7. a spray rod; 8. spraying a hole; 9. a filter cartridge; 10. an air inlet; 11. a rotating electric machine; 12. An air floatation tank; 13. a pressure reducing valve; 14. a fixing ring; 15. an annular through hole; 16. a pressure dissolved air tank; 17. A sealing structure; 18. a slag discharge mechanism; 19. an air compressor; 20. an A/O biochemical pool; 201. a nitrification tank; 202. A denitrification tank; 21. a membrane biological reaction tank; 211. a microfiltration membrane component; 22. a clean water tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-3, the present invention provides a technical solution: a wastewater treatment apparatus comprises a pretreatment device, a biochemical unit and a clean water tank 22; the pretreatment device comprises an air floatation unit; the air floatation unit comprises a pressurizing pump 1, a pressure dissolved air tank 16 and an air floatation tank 12; one port of the pressure pump 1 is communicated with a raw water pipeline 2, and one side of the raw water pipeline 2 is provided with a medicine adding tank 3; chemical agents are stored in the chemical feeding tank 3, and the chemical feeding tank 3 is communicated with the raw water pipeline 2 through a chemical feeding pipeline 4; the other port of the pressure pump 1 is communicated with the top end of a pressure dissolved air tank 16 through a pressure pipeline 5; one side of the top end of the pressure dissolved air tank 16 is provided with an air release valve 6, and the center inside the pressure dissolved air tank 16 is vertically provided with a spray rod 7; a filter cylinder 9 is sleeved on the outer side of the spray rod 7, a plurality of spray holes 8 are formed in the surface of the spray rod 7, an air inlet hole 10 is formed in the center of the bottom of a pressure dissolved air tank 16, the bottom end of the spray rod 7 is communicated with the air inlet hole 10, and the top end of the spray rod 7 penetrates through the pressure dissolved air tank 16 and is fixedly connected with the output end of a rotating motor 11; an air floatation tank 12 is arranged on one side of the pressure dissolved air tank 16;
the biochemical unit is arranged on one side of the air floatation unit and comprises an A/O biochemical tank 20 and a membrane biological reaction tank 21; the A/O biochemical tank 20 comprises a nitrification tank 201 and a denitrification tank 202; the denitrification tank 202 is arranged on one side of the air floatation tank, the denitrification tank 202 is communicated with the air floatation tank through a pipeline, and the other side of the denitrification tank 202 is communicated with a nitrification tank 201; the top end of the membrane biological reaction tank 21 is communicated with the nitrification tank 201, a microfiltration membrane component 211 is arranged in the membrane biological reaction tank 21, and the bottom end of the membrane biological reaction tank 21 is communicated with the clean water tank 22.
Further, the chemical agent includes a PAC flocculant and a PAM coagulant aid.
Further, the pressure dissolved air tank 16 is communicated with the air flotation tank 12 through a pipeline, and a pressure reducing valve 13 is arranged in the pipeline.
Further, the top surface of the pressure dissolved air tank 16 is provided with an annular through hole 15; the top of the filter cartridge 9 is provided with a fixing ring 14, the diameter of the fixing ring 14 is matched with that of the annular through hole 15, and two sides of the fixing ring 14 are provided with sealing structures 17.
Furthermore, a slag discharge mechanism 18 is arranged above the air floatation tank 12.
Further, an air compressor 19 is arranged below the pressure dissolved air tank 16, and the outlet end of the air compressor 19 is communicated with the air inlet hole 10 through a pipeline.
The working principle is as follows: one end of a pressure pump 1 is communicated with a raw water pipeline 2, waste water in the raw water pipeline 2 enters a pressure dissolved air tank 16 through the pressure of the pressure pump 1, in the process, a PAC flocculating agent and a PAM coagulant aid in a chemical feeding tank 3 enter the raw water pipeline 2 through a chemical feeding pipeline 4, so that the PAC flocculating agent, the PAM coagulant aid and the waste water enter the pressure dissolved air tank 16 together, a spray rod 7 is arranged in the pressure dissolved air tank 16, a plurality of spray holes 8 are formed in the surface of the spray rod 7, the bottom end of the spray rod 7 is communicated with an air inlet 10, air enters the spray rod 7 from the air inlet 10 and is sprayed out through the plurality of spray holes 8 formed in the surface of the spray rod 7, so that the air is dissolved in the waste water, then the waste water is decompressed and released when entering an air flotation tank 12 through a pipeline and a decompression valve 13, particles in the waste, the wastewater enters the denitrification tank 202201 for biochemical treatment after being treated by the air floatation unit, anaerobic microorganisms are arranged in the denitrification tank 202201 and can convert complex organic matters in the wastewater into small molecular substances so as to remove nitrogen elements in the wastewater, then the wastewater enters the nitrification tank 201, and activated sludge is arranged in the nitrification tank 201 so as to remove the organic matters in the wastewater; the wastewater is subjected to denitrification and nitrification treatment in the A/O biochemical tank 20 and then is introduced into the membrane biological reaction tank 21, the microfiltration membrane component 211 is arranged in the membrane biological reaction tank 21 and can be used for filtering the wastewater, so that the wastewater is separated from sludge, the quality of the effluent is further improved, and finally the treated wastewater enters the clean water tank 22 and is ready to be discharged.
A filter cylinder 9 is arranged on the outer side of the spray rod 7, and the filter cylinder 9 can prevent particles in the wastewater from blocking a spray hole 8 formed in the surface of the spray rod 7, so that air cannot be dissolved in the wastewater, and the condition of poor deslagging effect is caused; the top end of the filter cylinder 9 is provided with a fixing ring 14, the fixing ring 14 is fixed at an annular through hole 15 on the top surface of a pressure dissolved air tank 16, when the filter cylinder 9 is blocked, the filter cylinder 9 is convenient to replace, and sealing structures 17 are arranged on two sides of the fixing ring 14 to prevent pressure leakage; spray lance 7 top is run through pressure and is dissolved gas pitcher 16 and rotating electrical machines 11 output end fixed connection for spray lance 7 can dissolve 16 internal rotations of gas pitcher at pressure, thereby makes more even distribution of air inside waste water, strengthens the treatment effect.
It is worth noting that: the whole device is controlled by the master control button, and the equipment matched with the control button is common equipment, so that the device belongs to the prior art, and the electrical connection relation and the specific circuit structure of the device are not repeated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A wastewater treatment apparatus, characterized in that: comprises a pretreatment device, a biochemical unit and a clean water tank (22); the pretreatment device comprises an air floatation unit; the air floatation unit comprises a pressure pump (1), a pressure dissolved air tank (16) and an air floatation tank (12); one port of the pressure pump (1) is communicated with a raw water pipeline (2), and one side of the raw water pipeline (2) is provided with a medicine adding tank (3); chemical agents are stored in the medicine feeding tank (3), and the medicine feeding tank (3) is communicated with the raw water pipeline (2) through a medicine feeding pipeline (4); the other port of the pressure pump (1) is communicated with the top end of a pressure dissolved air tank (16) through a pressure pipeline (5); one side of the top end of the pressure dissolved air tank (16) is provided with an air release valve (6), and the inner center of the pressure dissolved air tank (16) is vertically provided with a spray rod (7); a filter cylinder (9) is sleeved on the outer side of the spray rod (7), a plurality of spray holes (8) are formed in the surface of the spray rod (7), an air inlet hole (10) is formed in the center of the bottom of the pressure dissolved air tank (16), the bottom end of the spray rod (7) is communicated with the air inlet hole (10), and the top end of the spray rod (7) penetrates through the pressure dissolved air tank (16) and is fixedly connected with the output end of the rotating motor (11); an air flotation tank (12) is arranged on one side of the pressure dissolved air tank (16);
the biochemical unit is arranged on one side of the air floatation unit and comprises an A/O biochemical tank (20) and a membrane biological reaction tank (21); the A/O biochemical tank (20) comprises a nitrification tank (201) and a denitrification tank (202); the denitrification tank (202) is arranged on one side of the air floatation tank, the denitrification tank (202) is communicated with the air floatation tank through a pipeline, and the other side of the denitrification tank (202) is communicated with the nitrification tank (201); the top end of the membrane biological reaction tank (21) is communicated with the nitrification tank (201), a microfiltration membrane component (211) is arranged in the membrane biological reaction tank (21), and the bottom end of the membrane biological reaction tank (21) is communicated with the clean water tank (22).
2. The wastewater treatment plant according to claim 1, characterized in that: the chemical agents include PAC flocculants and PAM coagulants.
3. The wastewater treatment plant according to claim 1, characterized in that: the pressure dissolved air tank (16) is communicated with the air flotation tank (12) through a pipeline, and a pressure reducing valve (13) is arranged in the pipeline.
4. The wastewater treatment plant according to claim 1, characterized in that: the top surface of the pressure dissolved air tank (16) is provided with an annular through hole (15); the top of the filter cylinder (9) is provided with a fixing ring (14), the diameter of the fixing ring (14) is matched with that of the annular through hole (15), and two sides of the fixing ring (14) are provided with sealing structures (17).
5. The wastewater treatment plant according to claim 1, characterized in that: and a slag discharge mechanism (18) is arranged above the air floatation tank (12).
6. The wastewater treatment plant according to claim 1, characterized in that: an air compressor (19) is arranged below the pressure dissolved air tank (16), and the outlet end of the air compressor (19) is communicated with the air inlet hole (10) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020760422.XU CN212174745U (en) | 2020-05-09 | 2020-05-09 | Wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020760422.XU CN212174745U (en) | 2020-05-09 | 2020-05-09 | Wastewater treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212174745U true CN212174745U (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020760422.XU Active CN212174745U (en) | 2020-05-09 | 2020-05-09 | Wastewater treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212174745U (en) |
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2020
- 2020-05-09 CN CN202020760422.XU patent/CN212174745U/en active Active
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