CN100486670C - Method and device of purifying fume coataining gas using overgravity technology - Google Patents
Method and device of purifying fume coataining gas using overgravity technology Download PDFInfo
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- CN100486670C CN100486670C CNB2006100123810A CN200610012381A CN100486670C CN 100486670 C CN100486670 C CN 100486670C CN B2006100123810 A CNB2006100123810 A CN B2006100123810A CN 200610012381 A CN200610012381 A CN 200610012381A CN 100486670 C CN100486670 C CN 100486670C
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Abstract
The present invention relates to a method for purifying gas containing oil fume. Said method is characterized by that the gas containing oil fume is introduced into a fume channel with negative pressure, and passed through a rotary filler layer, so that the pollutants in the gas containing oil fume can be trapped and collected by said rotary filler layer, the purified gas can be discharged out. The invented gas-purifying equipment includes a cylinder body, a gas inlet, a gas outlet and a rotary filler layer mounted in the interior of said cylinder body.
Description
Technical field
The present invention relates to a kind of method and purifier thereof that utilizes high-gravity technology to purify catering trade oil-containing flue gas body.
Background technology
China resident's dietary structure is mainly based on prepared food, adopt vegetable oil and/or animal oil in culinary cuisine, under the high temperature heating condition, edible oil produces a large amount of oxidation Decomposition things, form oil smoke and be diffused in the air, form the less droplet (being oil smoke) of granularity after temperature descends.Oil smoke is to form dispersed system by suspensions such as solid particle, drop and liquid-solid bonds in air dielectric, mainly exists with liquid aersol and aerosol form, is suspended in for a long time in the air, but forms inhalation (inhalatio).The pollutants from cooking fume complicated component, existing grease, protein and other raw material etc. carry out organic flue gas that physical-chemical reaction produces under heating condition, also have in the heating process, the macromolecular compound of elaioleucite, material, drop decomposition, oxidation, polymerization mixes with combustion product gases, forms gaseous state, liquid state and solid-state three pollutants.Relevant department shows the oil smoke test result, contains 300 number of chemical materials in the oil smoke at least, mainly contains aldehyde, ketone, hydrocarbon, aliphatic acid, alcohol, aromatic, fat and heterocyclic compound etc.The aerocolloidal chemical composition of these oil smoke is very complicated, and is carrying out complicated physics, chemical reaction on its surface, forms the bigger pollutant of human body harm.Particularly oil smoke has also produced sudden change carcinogenic substances such as volatile nitrosamine when culinary art, and therefore, administering the cooking fume pollution also is one of main task of present efforts at environmental protection.
At present, oil smoke improvement method mainly contains electrostatic deposition, washing method, isolated by filtration method etc.Electrostatic deposition is to utilize electric field to make smoke particle charged, is collected on the pole plate under the electric field force effect, staticizes effect thereby reach, and the purification efficiency of this equipment is higher, and working resistance is less.But in running, electrode surface gathers grease easily and forms oil lamella, hinders the electric field discharge, seriously reduces treatment effect, exists the grease that gathers not easy cleaning, deficiency such as equipment manufacturing cost is higher, floor space is big in addition.Washing method is to absorb pollutant in the oil smoke gas with absorption liquid, by the gas-liquid contact pollutant is shifted to liquid phase from gas phase, and washing agent and running water spray with spray pattern by nozzle, makes it fully to contact with the oil smoke that sucks, thereby reaches the purpose of washing.This kind equipment advantage is the purification efficiency height, can clean automatically.But the bad processing of the cleaning solution that produces in cleaning process forms secondary pollution easily.The isolated by filtration method is to adopt filter cloth, filter screen and grid etc., and oil smoke gas is by filtering layer the time, and the oil plant particle is captured and removes.This kind equipment is easy for installation, the efficient height.Weak point, filter screen stops up easily, and pressure drop is big, energy consumption is high.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, proposed a kind of method of utilizing high-gravity technology to purify oil-containing flue gas body, this method adopts the hypergravity separation principle, the oil smoke composition in the oil-containing flue gas body is separated reclaim, and discharges clean gas.The present invention has also designed a kind of hypergravity oil-containing flue gas body purifier.
The method of utilizing high-gravity technology to purify oil-containing flue gas body of the present invention comprises the steps:
A kind of method of utilizing high-gravity technology to purify oil-containing flue gas body comprises following processing step:
Oil-containing flue gas body is introduced the exhaust gases passes of a band negative pressure by inlet; Be provided with the rotary filler layer that rotating speed is 100-3000rpm in the passage, described oil-containing flue gas body enters this rotary filler layer under differential pressure action; Solid particle in the oil-containing flue gas body, drop, solid-liquid combination thing are hunted down in the rotation filler, and under centrifugal action, be thrown off packing layer and enter collecting tank, it is characterized in that going into static wire packing layer and carrying out double purification through gas diffusion chamber is laggard by the rotary filler layer purified gas, remove the droplet that gas is carried secretly, through the outlet emptying, the oil pump of collecting in the collecting tank goes into to rotate in the filler as cleaning solution and oil-containing flue gas body contact the purpose that reaches gas purification and cleaning filler in filler.
A kind of described hypergravity fume purifier of fume that utilizes high-gravity technology to purify the method for oil-containing flue gas body of claim 1 that is applicable to, comprise staving, air inlet and exhaust outlet are arranged on staving, staving one end has bearing, be fixed with motor on the bearing, be fixed with rotary filler layer on the motor shaft, air inlet and exhaust outlet place the both sides of rotary filler layer respectively, the staving bottom is provided with leakage fluid dram, the arranged outside that it is characterized in that rotary filler layer has static packing layer, be the Purge gas diffuser casing between static packing layer and rotary filler layer, exhaust outlet is positioned at the outside of static packing layer.
The method of utilizing high-gravity technology to purify oil-containing flue gas body of the present invention, technical process is simple, and equipment needed thereby is few, compact conformation, it is little to take up room, and does not have the participation of chemical substance in purification process, does not need cleaning solvent, thereby can not cause secondary pollution.Drain because isolated greasy dirt is thrown out of the rotation filler immediately, therefore, also can not cause problems such as filler obstruction and greasy dirt alluvial.
Oil-containing flue gas body after being cleaned is by double purification, and the purifying rate of pollutants such as greasy dirt, droplet, solid-liquid combination thing can reach more than 99% in the vent gas.
Hypergravity fume purifier of fume of the present invention has simple in structurely, and volume is little, the purification efficiency height, and operating cost is low, and it is big to handle intensity, and separated greasy dirt can in time be discharged, and can not cause filler to stop up and greasy dirt deposits.A static packing layer is set after rotary filler layer again, can further removes the water vapour in the vent gas, to adapt to some requirement of special occasion.
Because the air inducing blade directly is fixed on the motor shaft, saved special-purpose air-introduced machine, can save part fund and space.Use buncher, can adjust motor speed, reach energy-saving effect according to the size of mist extractor amount.
Description of drawings
Fig. 1 is a hypergravity fume purifier of fume A type structure
Motor is positioned at the below of device among the figure, and rotary filler layer is positioned at device top, and exhaust outlet is positioned at the device top.Axle 2 can extend to the rotary filler layer outside and fixing air inducing blade thereon.
Fig. 2 is a hypergravity fume purifier of fume Type B structure
Motor is positioned at device top among the figure, and rotary filler layer is positioned at the device bottom, and exhaust outlet is positioned at bottom of device, and a pair of air inducing blade is arranged on axle.
Fig. 3 is a hypergravity fume purifier of fume C type structure
Motor is positioned at the below of device among the figure, and rotary filler layer is positioned at device top, in the rotary filler layer arranged outside a static packing layer is arranged, and is gas diffusion chamber between two packing layers, and exhaust outlet is positioned at the static packing layer outside, the top of device.Axle 2 can be extended to gas diffusion chamber or the static packing layer outside among this figure and fixing air inducing blade thereon.
Fig. 4 is the oil-containing flue gas body purification process figure that adopts air-introduced machine, is applicable to handle the bigger large-scale food processing place of oil smoke amount.
The negative pressure that is formed by air-introduced machine shown in the figure enters fume purifier of fume through collecting through exhaust fume collecting hood 13 by flue with oil-containing flue gas body, and purified gas is by the air-introduced machine emptying.
The static packing layer 9-of the 1-motor 2-axle 3-bearing 4-rotary filler layer 5-gas access 6-gas vent 7-liquid outlet 8-air inducing blade 10-staving 12-13-of gas diffusion chamber exhaust fume collecting hood 15-air-introduced machine among the figure
The specific embodiment
The method of utilizing high-gravity technology to purify oil-containing flue gas body of the present invention has an exhaust gases passes, passage do not hold or passage in certain position air-introduced machine is set makes and form negative pressure in the passage, oil-containing flue gas body is introduced in this exhaust gases passes.In passage the porch near a rotary filler layer is set, the rotating speed of this rotary filler layer is 100-3000rpm.Above-mentioned rotating speed can be by the buncher control of adopting in the corresponding purifier; Perhaps, select the purifier of the serial motors of employing different size (rotating speed) according to the needs of mist extractor amount; Oil-containing flue gas body enters rotary filler layer under suction function, solid particle wherein, drop, solid-liquid combination thing etc. are hunted down in the packing layer of rotation at a high speed, under powerful centrifugal action, move laterally by the filler drive and along filler, and then break away from gas and be thrown toward the exhaust gases passes inwall and flow to the bottom, collect through compiling by liquid outlet.Clean gas after the separation is passed the packing layer emptying.Material at rotary filler layer among the present invention does not have specific (special) requirements, adopts stainless steel cloth, annular packing or video disc filler all can.
At some special occasions emission gases is had higher requirements, the above-mentioned gas that removes oil smoke can be carried out double purification.Promptly after the gas behind the primary purification passes rotary filler layer, enter another static packing layer by gas diffusion chamber and carry out double purification, further remove a small amount of water smoke in the gas after export emptying.This static packing layer adopts the wire packing effect better.
With reference to Fig. 1-3 hypergravity fume purifier of fume of the present invention a staving 10 is arranged, bearing 3 is arranged on the staving, be fixed with motor 1 on bearing 3, this motor 1 preferably adopts buncher.On the axle 2 of motor 1, be fixed with rotary filler layer 4.Described packing layer can be a stainless steel cloth, or annular packing, video disc filler etc.Staving 10 is provided with air inlet 5 and communicates with a side of rotary filler layer 4, on the opposite side staving of rotary filler layer 4 exhaust outlet 6 is arranged.In the bottom of staving 10 leakage fluid dram 7 is arranged.
If, then can save the air-introduced machine in the exhaust gases passes with fixing air inducing blade 9 on the motor shaft 2.Blower unit and flue gas processing device are integrated.Be provided with the air inlet side or the exhaust side that can be positioned at rotation filler 4 of air inducing blade 9 all can.
In order to adapt to of the high standard requirement of some specific occasion, at static packing layer 8 of arranged outside of rotation filler 4, in order to the remaining micro-drop in the flue gas of further absorption behind primary purification to fume emission.The air inducing blade can be arranged on the outside of static packing layer 8, treatment effect can be better.In the staving lower periphery sump pit being set is communicated with leakage fluid dram 7.
During work, open air-introduced machine and hypergravity fume purifier of fume,, then adjust motor speed according to the oil smoke treating capacity if the employing of the motor of hypergravity fume purifier of fume is buncher.Owing to form negative pressure in the exhaust gases passes, oil-containing flue gas body enters in exhaust gases passes and the rotation filler 4 from air inlet 5, drop wherein, solid particle and liquid-solid bond are rotated filler immediately and catch, because powerful centrifugal action, captive material moves to the filler outside along filler, and break away from gas gradually and be thrown toward the staving inwall, reduce to the bottom sump pit along barrel body wall after, compile and discharge from leakage fluid dram.After the gas that the rotation filler purifies then passes rotary filler layer by exhaust outlet 6 emptyings.
As shown in Figure 1, oil-containing flue gas body treating capacity is 500m
3/ h, under the air-introduced machine negative pressure, oil-containing flue gas body enters exhaust gases passes and directly enters in the rotation filler 4, rotation filler 4 in this example adopts ceramic video disc filler, oil-containing flue gas body is after filler contact with rotation, and drop wherein, liquid-solid and solia particle are caught by ceramic video disc, owing to the high speed centrifugation effect, captive above-mentioned substance moves laterally at the disc edge place along ceramic video disc and is thrown out of to inner barrel wall, and is discharged by leakage fluid dram along the collecting tank that inner barrel wall flow to the bottom.Treated gas then pass the rotation filler after emptying.The gas of treated emptying reaches state emission standard.Adopt the 2.2kW buncher in the present embodiment, motor speed 200-1000rpm, air-introduced machine is provided with separately.Exhaust outlet 6 is positioned at the top of device.The emptying after single treatment of oil-containing flue gas body.
As shown in Figure 2, the motor 1 in this example is arranged on the top of hypergravity fume purifier of fume, and rotary filler layer 4 is positioned at the bottom of device, and exhaust outlet 6 is positioned at the bottom of device.Air inducing blade 9 is fixed on the motor shaft 2, the air inlet side of rotary filler layer 4.Rotary filler layer 4 adopts stainless steel cloth, motor speed 1000rpm.Adopt 2.2kW watt of common electric machine, other is identical with embodiment 1.
As shown in Figure 3, the hypergravity fume purifier of fume in this example is at static packing layer 8 of arranged outside of rotary filler layer 4.This packing layer adopts wire packing.It is gas diffusion chamber 12 that a space is arranged between two packing layers, and the gas of discharging from rotary filler layer enters static packing layer 8 through diffuser casing 12, still has a small amount of fine droplet further to be adsorbed in this layer in the gas of single treatment, emptying then.Drop after the absorption then flows down along the housing inboard, is collected by sump pit to leakage fluid dram 7 unifications.Motor adopts the 2.2Kw buncher, motor speed 2000-3000rpm, and motor shaft 2 may extend to the outside of static packing layer 4, and air inducing blade 9 can be fixed on the end of motor shaft 2.Exhaust outlet 6 is positioned at the outside of air inducing blade.
Claims (2)
1, a kind of method of utilizing high-gravity technology to purify oil-containing flue gas body comprises following processing step:
Oil-containing flue gas body is introduced the exhaust gases passes of a band negative pressure by inlet; Be provided with the rotary filler layer that rotating speed is 100-3000rpm in the passage, described oil-containing flue gas body enters this rotary filler layer under differential pressure action; Solid particle in the oil-containing flue gas body, drop, solid-liquid combination thing are hunted down in the rotation filler, and under centrifugal action, be thrown off packing layer and enter collecting tank, it is characterized in that going into static wire packing layer and carrying out double purification through gas diffusion chamber is laggard by the rotary filler layer purified gas, remove the droplet that gas is carried secretly, through the outlet emptying, the oil pump of collecting in the collecting tank goes into to rotate in the filler as cleaning solution and oil-containing flue gas body contact the purpose that reaches gas purification and cleaning filler in filler.
2, a kind of described hypergravity fume purifier of fume that utilizes high-gravity technology to purify the method for oil-containing flue gas body of claim 1 that is applicable to, comprise staving (10), air inlet (5) and exhaust outlet (6) are arranged on staving, staving (10) one ends have bearing (3), be fixed with motor (1) on the bearing, be fixed with rotary filler layer (4) on the motor shaft (2), air inlet (5) and exhaust outlet (6) place the both sides of rotary filler layer (4) respectively, staving (3) bottom is provided with leakage fluid dram (7), the arranged outside that it is characterized in that rotary filler layer (4) has static packing layer (8), be Purge gas diffuser casing (12) between static packing layer (8) and rotary filler layer (4), exhaust outlet (6) is positioned at the outside of static packing layer (8).
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| CNB2006100123810A CN100486670C (en) | 2006-01-26 | 2006-01-26 | Method and device of purifying fume coataining gas using overgravity technology |
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| CNB2006100123810A CN100486670C (en) | 2006-01-26 | 2006-01-26 | Method and device of purifying fume coataining gas using overgravity technology |
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| CN100486670C true CN100486670C (en) | 2009-05-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102008862A (en) * | 2010-09-20 | 2011-04-13 | 上海安赐机械设备有限公司 | Recovery unit and recovery method for aromatic hydrocarbon in tail gas in hydrogen peroxide production process |
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| CN105664595A (en) * | 2016-01-11 | 2016-06-15 | 上海安赐环保科技股份有限公司 | Medium-small coal-fired boiler wet desulphurization tail gas reinforced defogging and dedusting device and process thereof |
| CN107254333A (en) * | 2017-07-18 | 2017-10-17 | 贵州森林木业有限公司 | A kind of combined type reclaims coal tar equipment and its reclaims coal tar method |
| CN108167895B (en) * | 2018-01-31 | 2020-05-19 | 碧恋天环保科技（湖北）有限公司 | Turbine formula wet process oil smoke clean system |
| CN108744735A (en) * | 2018-08-24 | 2018-11-06 | 重庆众誉材工科技有限公司 | A kind of centrifugal water air separation of garbage loading embeading biogas |
| CN109432937A (en) * | 2018-12-19 | 2019-03-08 | 马鞍山市方正机械制造有限责任公司 | A kind of blast furnace water slag-flushing Steam Recovery processing system and method |
| CN109915871A (en) * | 2019-03-18 | 2019-06-21 | 北京化工大学 | A kind of kitchen ventilator efficiently separated based on hypergravity and its application |
| CN111701399A (en) * | 2020-07-31 | 2020-09-25 | 中国石油化工股份有限公司 | Method for treating volatile organic compounds of petrochemical enterprises |
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Non-Patent Citations (2)
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| 旋转填料床精馏性能研究. 栗秀萍等.化工生产与技术，第11卷第5期. 2004 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008862A (en) * | 2010-09-20 | 2011-04-13 | 上海安赐机械设备有限公司 | Recovery unit and recovery method for aromatic hydrocarbon in tail gas in hydrogen peroxide production process |
| CN102008862B (en) * | 2010-09-20 | 2012-10-10 | 上海安赐机械设备有限公司 | Recovery method for aromatic hydrocarbon in tail gas in hydrogen peroxide production process |
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