CN104548672B - Defoaming device - Google Patents
Defoaming device Download PDFInfo
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- CN104548672B CN104548672B CN201510000919.5A CN201510000919A CN104548672B CN 104548672 B CN104548672 B CN 104548672B CN 201510000919 A CN201510000919 A CN 201510000919A CN 104548672 B CN104548672 B CN 104548672B
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- tank
- communicated
- defoaming
- hydraulic ejector
- pump
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention discloses a kind of defoaming device, the pump intake of corrosion resisting centrifugal pump is communicated with water tank bottom, pump discharge is upwards communicated to the suction inlet of hydraulic ejector, hydraulic ejector inside is venturi tube structure, the side draught air inlet of hydraulic ejector is communicated with surge tank, the jet of hydraulic ejector is communicated to defoaming tank, and defoaming tank internal placement has except indulging in serfing the Net, and is communicated with bottom defoaming tank with water tank; Surge tank top is provided with suction tube, and the mouth of pipe of suction tube arranges the liquid level being positioned at biochemical aeration tank.The present invention replaces the medicament froth breaking mode of traditional chemical in the mechanical defoaming mode of physics, avoids producing secondary pollution to water body, and decreases the impact on biochemical reaction.The present invention utilizes venturi principle to solve the problem of pump up water gas mixture, reduces the resistance of hydraulic ejector side draught, improves negative-pressure vacuum degree, forms larger suction.Present device is simple, and investment is low with the cost run, and working stability is reliable, long service life.
Description
Technical field
The present invention relates to field of environment protection equipment, especially a kind of defoaming device for biochemical aeration tank.
Background technology
In alkali lye pond in environmental protection industry (epi) in the biochemical aeration tank of sewage treatment process, chemical industry, galvanizing industry, the Chi Tizhong such as quickening liquid pond often produces a large amount of bubbles, these bubble coalescence are on liquid level, biochemical system is run, the quality of effluent quality and electroplated product all can have an impact, thus need froth breaking.Existing de-foaming process many employings froth breaking medicament carries out chemical froth breaking, and chemical agent raw material type is numerous, and processing technology is complicated, often has excitant and certain toxicity, and can have an impact to the technique of biochemical treatment and effect or electroplating quality etc.
Summary of the invention
The applicant has toxicity for above-mentioned existing chemical agent froth breaking, and the technique of biochemical wastewater treatment and effect such as to be had an impact at the shortcoming, a kind of defoaming device rational in infrastructure is provided, adopts mechanical means to carry out froth breaking, and can run water, gas mixture.
The technical solution adopted in the present invention is as follows:
A kind of defoaming device, the pump intake of corrosion resisting centrifugal pump is communicated with water tank bottom, pump discharge is upwards communicated to the suction inlet of hydraulic ejector, hydraulic ejector inside is venturi tube structure, the side draught air inlet of hydraulic ejector is communicated with surge tank, the jet of hydraulic ejector is communicated to defoaming tank, and defoaming tank internal placement has except indulging in serfing the Net, and is communicated with bottom defoaming tank with water tank; Surge tank top is provided with suction tube, and the mouth of pipe of suction tube arranges the liquid level being positioned at biochemical aeration tank.
Further improvement as technique scheme:
Check-valves is provided with between described side draught air inlet and surge tank.
Described except employing 100 ~ 250 object stainless steel cloth of indulging in serfing the Net.
Described water tank upper is provided with overfall, is provided with tapping valve bottom surge tank.Beneficial effect of the present invention is as follows:
The present invention replaces the medicament froth breaking mode of traditional chemical in the mechanical defoaming mode of physics, avoids producing secondary pollution to water body, and decreases the impact on biochemical reaction.The present invention utilizes venturi principle to solve the problem of pump up water gas mixture, overcome water pump can only pumping liquid, vavuum pump can only the limitation of intake-gas, surge tank is utilized to realize the preliminary layering of gas-liquid, thus ensure that the main component being inhaled into hydraulic ejector is gas phase, reduce the resistance of hydraulic ejector side draught, improve negative-pressure vacuum degree, form larger suction.Present device is simple, and investment is low with the cost run, and working stability is reliable, and service life can reach more than 15 years.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is the left view of Fig. 1.
In figure: 1, corrosion resisting centrifugal pump; 2, water tank; 3, surge tank; 4, pump intake; 5, pump discharge; 6, check-valves; 7, suction tube; 8, hydraulic ejector; 9, except indulging in serfing the Net; 10, defoaming tank; 11, overfall; 12, aeration tube; 13, biochemical aeration tank; 14, bubble; 15, tapping valve; 16, side draught air inlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As Fig. 1, shown in Fig. 2, the pump intake 4 of the corrosion resisting centrifugal pump 1 of defoaming device of the present invention is communicated with water tank 2 bottom, pump discharge 5 is upwards communicated to the suction inlet of hydraulic ejector 8, hydraulic ejector 8 inside is venturi tube structure, the side draught air inlet 16 of hydraulic ejector 8 is communicated with surge tank 3, side draught air inlet 16 and surge tank 3 are provided with check-valves 6, the jet of hydraulic ejector 8 is communicated to defoaming tank 10, defoaming tank 10 internal placement has except indulging in serfing the Net 9, except 9 employing 100 ~ 250 object stainless steel cloths of indulging in serfing the Net, aperture is less than bubble, bubble can better de-bubble by mesh, be communicated with water tank 2 bottom defoaming tank 10.Surge tank 3 top is provided with suction tube 7, and the mouth of pipe of suction tube 7 arranges the liquid level being positioned at biochemical aeration tank 13.Water tank 2 top is provided with overfall 11, is provided with tapping valve 15 bottom surge tank 3.
During real work, the inner sewage of the aeration tube arranged bottom biochemical aeration tank 13 12 pairs of pond bodies carries out aeration, forms a large amount of bubbles 14 and is gathered in liquid level place.Corrosion resisting centrifugal pump 1 high-speed cruising, the water of water tank 2 bottom is aspirated and pumps into the suction inlet of hydraulic ejector 8, powerful suction is produced at side draught air inlet 16 according to venturi principle hydraulic ejector 8, form negative pressure at surge tank 3 and suction tube 7 inside to vacuumize, a large amount of bubble 14 is sucked surge tank 3 with the mixture of water by suction tube 7 mouth of pipe being positioned at the liquid level of biochemical aeration tank 13, air-water mixture is first preliminary layering in surge tank 3, the a large amount of bubbles 14 being in upper strata are pumped into hydraulic ejector 8 with small part water by check-valves 6, mix mutually with high-velocity flow and injectedly enter defoaming tank 10, and directly impinge upon except indulging in serfing the Net on 9, except indulge in serfing the Net 9 mesh edge the bubble chamber film cutting in current is realized broken bubble, current after froth breaking return water tank 2.Water tank 2 top is provided with overfall 11 and is discharged by unnecessary water, is provided with tapping valve 15 and is discharged by the lower floor's aqueous phase in tank body bottom surge tank 3.
More than describing is explanation of the invention, and be not the restriction to invention, when without prejudice to spirit of the present invention, the present invention can do any type of amendment.
Claims (4)
1. a defoaming device, it is characterized in that: the pump intake (4) of corrosion resisting centrifugal pump (1) is communicated with water tank (2) bottom, pump discharge (5) is upwards communicated to the suction inlet of hydraulic ejector (8), hydraulic ejector (8) inside is venturi tube structure, the side draught air inlet (16) of hydraulic ejector (8) is communicated with surge tank (3), the jet of hydraulic ejector (8) is communicated to defoaming tank (10), defoaming tank (10) internal placement has except indulge in serfing the Net (9), and defoaming tank (10) bottom is communicated with water tank (2); Surge tank (3) top is provided with suction tube (7), and the mouth of pipe of suction tube (7) arranges the liquid level being positioned at biochemical aeration tank (13).
2. according to defoaming device according to claim 1, it is characterized in that: between described side draught air inlet (16) and surge tank (3), be provided with check-valves (6).
3. according to defoaming device according to claim 1, it is characterized in that: described except (9) employing 100 ~ 250 object stainless steel cloths of indulging in serfing the Net.
4. according to defoaming device according to claim 1, it is characterized in that: described water tank (2) top is provided with overfall (11), surge tank (3) bottom is provided with tapping valve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000919.5A CN104548672B (en) | 2015-01-05 | 2015-01-05 | Defoaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000919.5A CN104548672B (en) | 2015-01-05 | 2015-01-05 | Defoaming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104548672A CN104548672A (en) | 2015-04-29 |
| CN104548672B true CN104548672B (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000919.5A Active CN104548672B (en) | 2015-01-05 | 2015-01-05 | Defoaming device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104548672B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107050932A (en) * | 2017-06-06 | 2017-08-18 | 利穗科技(苏州)有限公司 | Double buffering type bubble trap |
| CN109250862A (en) * | 2018-09-29 | 2019-01-22 | 深圳市万信达生态环境股份有限公司 | A kind of device for removing biochemical reactor foam |
| CN113101701B (en) * | 2021-04-19 | 2022-11-15 | 长沙创新药物工业技术研究院有限公司 | Environment-friendly intelligent defoaming system based on chemical product production |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4341183B2 (en) * | 2001-01-05 | 2009-10-07 | 凸版印刷株式会社 | Defoaming apparatus and defoaming method |
| CN101837201A (en) * | 2010-04-02 | 2010-09-22 | 中煤能源黑龙江煤化工有限公司 | Sewage treating and de-foaming process and device |
| CN204395534U (en) * | 2015-01-05 | 2015-06-17 | 江苏苏亿环境工程有限公司 | Defoaming device |
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2015
- 2015-01-05 CN CN201510000919.5A patent/CN104548672B/en active Active
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| CN104548672A (en) | 2015-04-29 |
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