CN109911967A - A kind of jet flow negative pressure formula ammonia nitrogen blowing-off device - Google Patents
A kind of jet flow negative pressure formula ammonia nitrogen blowing-off device Download PDFInfo
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- CN109911967A CN109911967A CN201910252504.5A CN201910252504A CN109911967A CN 109911967 A CN109911967 A CN 109911967A CN 201910252504 A CN201910252504 A CN 201910252504A CN 109911967 A CN109911967 A CN 109911967A
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- gas
- negative pressure
- stripping tower
- jet flow
- stripping
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Abstract
A kind of jet flow negative pressure formula ammonia nitrogen blowing-off device, including sewage inlet pipe, sewage inlet pipe are connected with sewage pump, sewage pump is connected with ejector, the ejector includes mixing chamber, and mixing chamber is equipped with gas-guide tube, and mixing chamber passes through one section of trunnion diffuser, diffuser is by being connected to gas-liquid mixed pipe, gas-liquid mixed pipe is connected with stripping tower, and gas outlet is equipped at the top of the stripping tower, exhaust fan is housed at gas outlet, ammonia is pumped into exhaust collection tank by exhaust fan, and stripping tower lower part is equipped with water outlet.Using jet flow negative pressure formula stripping device, the mass-transfer efficiency during stripping on the one hand can be improved, the another aspect present apparatus makes that gas-liquid mixed is high-efficient, low energy consumption, long service life, low noise, excellent performance, will not generate secondary pollution to environment.
Description
Technical field
The present invention relates to sewage treatment field more particularly to a kind of jet flow negative pressure formula ammonia nitrogen blowing-off devices.
Background technique
High ammonia-nitrogen wastewater such as landfill leachate, wastewater from chemical industry etc. is very big to environmental hazard, and processing is difficult, to meet the public couple
The requirement that environmental quality is continuously improved, country have worked out the discharge standard being increasingly stringenter to ammonia nitrogen, and exploiting economy efficiently takes off
Nitrogen technology has become the emphasis and hot spot of field of industrial waste water treatment.
The practical approach of processing ammonia nitrogen waste water mainly has ammonia vaporizing extract process, ammonia aeration method, break point chlorination method, ion exchange at present
Method and biological treatment.Current several ammonia nitrogen removal methods are all unsatisfactory.This technique of ammonia-nitrogen desorption more may be used for comparing
Row but also more or less there is several defects and deficiency in traditional ammonia-nitrogen stripping tower, restrict application and the hair of this technology
Exhibition.The air stripping device of high-ammonia-nitrogen sewage is predominantly simply passed through air and carries out stripping at present, and main problem has: first is that tower
Filler is inside filled, not only gas-water contact area is relatively small for material filling type ammonia-nitrogen stripping tower, and mass transfer is poor, and easily fouling, easily resistance
Plug, short stream frequent occurrence, ammonia-nitrogen desorption effect is poor, technically there is major defect, and the cost of stripping tower is high, maintenance at
This height；Second is that the steam water interface of tower top cannot be effectively treated, secondary pollution is caused.Existing air stripping technology in summary,
Mass-transfer efficiency is high, NH_3-N treating inefficiency and operating cost are high.
Jet stream refers to that fluid is projected from nozzle, aperture, slit, and with the stream of fluid flowing of surrounding fluid blending.Often
The large Reynold number jet stream encountered is usually the free turbulence constrained without Gu Bi.This turbulent jet passes through turbulent flow active on boundary
Mixing sucks in surrounding fluid volume, and constantly expands and flow to downstream.Jet stream water pump, steam pump, ventilation blower, chemical industry equipment and
Many technical fields such as jet plane are used widely.Therefore a kind of ammonia-nitrogen desorption dress using fluidics can be developed
It sets.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of ammonia nitrogen blowing-off devices.
The technical scheme is that a kind of jet flow negative pressure formula ammonia nitrogen blowing-off device, including sewage inlet pipe, feature exist
In sewage inlet pipe is connected with sewage pump, and sewage pump is connected with ejector, and the ejector includes mixing chamber, and mixing chamber is equipped with
Gas-guide tube, mixing chamber is by one section of trunnion diffuser, and by being connected to gas-liquid mixed pipe, gas-liquid mixed pipe is connected with to be blown diffuser
De- tower, the stripping tower top are equipped with gas outlet, exhaust fan are housed at gas outlet, and ammonia is pumped into exhaust collection tank by exhaust fan,
Stripping tower lower part is equipped with water outlet.
Further to improve, medium position is equipped with corrugated plating in the stripping tower, and stripping tower low inside, which has installed, to catchment
Device.
Further to improve, the water outlet is connected with threeway, threeway one outlet discharge part treated sewage, separately
One outlet leads to ejector and carries out circular treatment.
Further to improve, exhaust collection tank is provided with water.
The beneficial effects of the present invention are:
(1) stripping is carried out after being sufficiently mixed by ejector gas-liquid, stripping effect is better than traditional stripping.
(2) for the stripping tower in the present invention compared with traditional fountain and material filling type stripping tower, structure is simple, and blocking is avoided to ask
Topic etc., easy access.
(3) in stripping tower of the present invention, stripping efficiency can be greatly improved by exhaust fan pumping.
(4) in the present invention, setting corrugated plating can increase gas liquid interfacial area in stripping tower, and mass-transfer efficiency is greatly improved,
To improve stripping efficiency.
(5) connecing a reflux unit in water outlet makes treatment effect reach best and saves operating cost.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is jet flow negative pressure formula ammonia nitrogen blowing-off device schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
It includes: high-ammonia-nitrogen sewage water inlet pipe 1, sewage pump 2, ejector that the present invention, which provides a kind of jet flow negative pressure formula stripping device,
3, gas-liquid mixed pipe 4, stripping tower 5, exhaust fan 7, exhaust collection tank 8, threeway 9, outlet pipe 11 and reflux sewage pipe 10.It is described to penetrate
Stream device includes gas-guide tube 301, mixing chamber 302, trunnion 303 and diffuser 304, includes corrugated plating 501 and receipts in the stripping tower 5
Hydrophone 502, stripping tower side have water outlet, top to have gas outlet, tap water are housed in the exhaust collection tank 8.Knot of the present invention
Structure is simple, can improve the stripping efficiency of ammonia nitrogen in waste water, and ejector is at low cost, effectively solves high ammonia-nitrogen wastewater stripping efficiency not
The problems such as high and tradition stripping device is at high cost, and vent gas treatment absorption reagent uses tap-water-saving certain cost, and energy
The ammonia generated during stripping recycle and high ammonia-nitrogen wastewater qualified discharge can be made under the premise of save the cost.
(1) jet flow negative pressure process
Under 2 impeller high speed rotation of sewage pump, high-ammonia-nitrogen sewage enters high speed by water inlet pipe 1 and sprays from nozzle, swiftly flowing
When liquid passes through 302 mixing chamber, vacuum can be formed in 302 mixing chambers, suck large quantity of air by 301 gas-guide tubes, air enters 302
It after mixing chamber, is vigorously mixed at 303 trunnions with liquid, forms gas liquid mixture, be discharged by 304 diffusers, air is in water body
In risen with fine gas bubbles, form the transmitting of efficient substance in the whole process.
(2) stripping process
Ejector 3 makes powerful water flow mix with air injection, stirs evenly the two, completely, and the bubble of generation is more and fine and smooth.
Air, which rises through corrugated plating 501 in water body with fine gas bubbles, in stripping tower 5 mixes with air waste water more sufficiently, increases
Contact area and formation moisture film, and an exhaust fan 7 is set faster by the NH of generation on stripping tower36 extractions.
(3) jet flow negative pressure stripping whole flow process
First under 2 impeller high speed rotation of sewage pump, high-ammonia-nitrogen sewage enters high speed by water inlet pipe 1 and sprays from nozzle, high velocity stream
Dynamic liquid pass through 302 mixing chamber when, can 302 mixing chambers formed vacuum, by 301 gas-guide tubes suck large quantity of air, air into
It after entering 302 mixing chambers, is vigorously mixed at 303 trunnions with liquid, forms gas liquid mixture, be discharged by 304 diffusers, air exists
Risen in water body with fine gas bubbles, forms efficient substance transmitting in the whole process.Then ejector 3 make powerful water flow with
Air mixed injecting stirs evenly the two, completely, and the bubble of generation is more and fine and smooth.In stripping tower 5 air in water body with
Fine gas bubbles, which rise through corrugated plating 501, mixes with air waste water more sufficiently, increases contact area and forms moisture film, and is blowing
An exhaust fan 7 is set faster by the NH of generation on de- tower3Extraction.NH after last stripping3It recycles, receives through exhaust collection tank 8
Collect and tap water is housed in tank 8, the high-ammonia-nitrogen sewage after stripping is a part of from 5 side of stripping tower through threeway 9 after the collection of water collection device 502
Face water outlet is discharged through outlet pipe 11, and another part treated sewage sewage pipe 10 that flowed back is back to 3 front end of ejector again
Carry out circulation blow-removing processing.
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Claims (4)
1. a kind of jet flow negative pressure formula ammonia nitrogen blowing-off device, including sewage inlet pipe, which is characterized in that sewage inlet pipe is connected with sewage
Pump, sewage pump are connected with ejector, and the ejector includes mixing chamber, and mixing chamber is equipped with gas-guide tube, and mixing chamber passes through one section
Trunnion diffuser, diffuser are connected with stripping tower, set at the top of the stripping tower by being connected to gas-liquid mixed pipe, gas-liquid mixed pipe
There is gas outlet, exhaust fan is housed at gas outlet, ammonia is pumped into exhaust collection tank by exhaust fan, and stripping tower lower part is equipped with water outlet.
2. a kind of jet flow negative pressure formula ammonia nitrogen blowing-off device as described in claim 1, which is characterized in that middle part in the stripping tower
Position is equipped with corrugated plating, and stripping tower low inside has installed water collector.
3. a kind of jet flow negative pressure formula ammonia nitrogen blowing-off device as described in claim 1, which is characterized in that the water outlet is connected with
Threeway, threeway one outlet discharge part treated sewage, another outlet lead to ejector and carry out circular treatment.
4. a kind of jet flow negative pressure formula ammonia nitrogen blowing-off device as described in claim 1, which is characterized in that exhaust collection tank is provided with
Water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910252504.5A CN109911967A (en) | 2019-03-29 | 2019-03-29 | A kind of jet flow negative pressure formula ammonia nitrogen blowing-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910252504.5A CN109911967A (en) | 2019-03-29 | 2019-03-29 | A kind of jet flow negative pressure formula ammonia nitrogen blowing-off device |
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| CN109911967A true CN109911967A (en) | 2019-06-21 |
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| CN201910252504.5A Pending CN109911967A (en) | 2019-03-29 | 2019-03-29 | A kind of jet flow negative pressure formula ammonia nitrogen blowing-off device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423077A (en) * | 2020-05-23 | 2020-07-17 | 樊晓瑜 | High-humus landfill leachate treatment process |
| CN111423076A (en) * | 2020-05-23 | 2020-07-17 | 樊晓瑜 | Landfill leachate treatment system |
| CN111847809A (en) * | 2019-12-30 | 2020-10-30 | 重庆大学 | Kitchen waste fermentation wastewater treatment device and method |
| CN113087364A (en) * | 2021-04-29 | 2021-07-09 | 同济大学 | Nitrogen neutralization process of sludge pyrohydrolysis and incineration coupled system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111847809A (en) * | 2019-12-30 | 2020-10-30 | 重庆大学 | Kitchen waste fermentation wastewater treatment device and method |
| CN111423077A (en) * | 2020-05-23 | 2020-07-17 | 樊晓瑜 | High-humus landfill leachate treatment process |
| CN111423076A (en) * | 2020-05-23 | 2020-07-17 | 樊晓瑜 | Landfill leachate treatment system |
| CN113087364A (en) * | 2021-04-29 | 2021-07-09 | 同济大学 | Nitrogen neutralization process of sludge pyrohydrolysis and incineration coupled system |
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