CN104740950A - Oil cooked chilli processing lampblack waste gas purification method - Google Patents
Oil cooked chilli processing lampblack waste gas purification method Download PDFInfo
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- CN104740950A CN104740950A CN201310755757.7A CN201310755757A CN104740950A CN 104740950 A CN104740950 A CN 104740950A CN 201310755757 A CN201310755757 A CN 201310755757A CN 104740950 A CN104740950 A CN 104740950A
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Abstract
The invention discloses an oil cooked chilli processing lampblack waste gas purification method, and aims to collect waste gases (lampblack, fire smoke and irritant gases) of a production workshop and feed into a purification system for treatment through a corrosion-resistant fume tube. The method comprises the following steps: I, feeding mixed gases into a pre-treatment tower through the corrosion-resistant fume tube; II, feeding the mixed waste gases treated in the step (1) into the pre-treatment tower under negative pressure, and performing two-phase gas-liquid primary mixing with an atomization absorbing liquid ejected out from atomization nozzles in the front side; III, feeding the mixed waste gases treated in the step (2) into a main treatment tower (5) under negative pressure, and performing two-phase gas-liquid primary mixing with an atomization absorbing liquid ejected out from an absorbing liquid box II (7) with atomization nozzles in the front side; IV, after the mixed waste gases treated in the step (3) are effectively purified, pumping by using a centrifugal fan, and discharging after meeting the emission standard. The waste gases can be directly discharged after being treated by using the method without being led into chimneys to discharge at high altitude, and no secondary pollution can be caused by emission substances of the device.
Description
Technical field
The present invention relates to a kind of environment-protecting oil soot exhaust gas purifying method, more particularly relate to the key method that the oil smoke produced in a kind of capsicum process, fiery cigarette and irritative gas (pepper flavor) are purified.
Background technology
Oil capsicum can produce a large amount of waste gas in process, is mainly fiery cigarette, oil smoke and irritative gas (pepper flavor).If the product of oxidation reaction during fire smoke pollution owner coke burning, particle diameter is generally 0.01 ~ 1 micron, and it comprises: the pernicious gases such as Cox, SOx, lingemann blackness, flying dust, NOx.These pollutants are not only the material causing respiratory tract, hematologic disease, and are " greenhouse effects " pernicious gas and the gas causing acid rain.Oil smoke is that capsicum decocts vegetable oil vaporization at high temperature oil gas and steam mixture in stir-fry process.Irritative gas is that capsicum high temperature decocts the capsicim and the multiple middle organic gas generated that discharge in stir-fry process.
Oil capsicum processing oil smoke waste gas is different from general kitchen fume, this oil flue waste gas complicated component, containing oil smoke, fiery cigarette, penetrating odor (pepper flavor), corrosivity is strong, be the difficult problem faced by domestic oily capsicum processing enterprise, be thus also the heat subject of domestic Recent study always.Up to the present, the processing method for this oil flue waste gas roughly has following several:
(1) electrostatic oil removal process
The method is from kitchen oil fume purifying, according to practice, electrostatic can only be removed dirt and can not remove irritative gas, and to endanger in the waste gas that oily capsicum process produces be more fiery cigarette and irritative gas (pepper flavor), and volatile oil, flue dust and a large amount of steam adhere to and are accumulated on battery lead plate, make it lose efficacy, run into spark also easy initiation fire.A large amount of power consumptions, high cost and huge volume make it be difficult to apply.
(2) catalysis method
Catalysis method can be divided into microwave photodissociation, light quantum decomposition etc. according to catalytic reaction source of students, no matter be that is a kind of, mechanism of its purification is all the same: utilize optical, electrical, ultrasonic excitation or the formation of ionization contaminant molecule active group, excited state molecule etc., meanwhile, oxygen in air and moisture also can produce a large amount of hydrogen in statu nascendis, ozone and hydroxyl oxygen isoreactivity group under the effect of high energy electron, and physics, the chemical reaction of these active groups and the pollutant generation series of complex be excited or after ionizing finally are converted into CO
2, H
2o, N
2deng material.
This work method weak point: (1) is undesirable to the fiery cigarette clean-up effect in waste gas; (2) energy consumption is high, needs powerful optical, electrical, supersonic generator could produce enough active ions; (3) cutting mechanisms of pollutant decomposes pollutant, is converted into CO
2, H
2the harmless components such as O, therefore need the enough reaction time, thus cause huge volume to make it be difficult to apply.(4) on the generator, if can not clear up in time, efficiency decay is serious, and easy initiation fire accident for the accumulation of a large amount of oil, flue dust.
Summary of the invention
The object of the present invention is to provide and a kind of wet dedusting and chemical treatment to be combined, oil smoke, fiery cigarette and irritative gas (pepper flavor) can purify at the same time, effectively can remove major part irritative gas not soluble in water and apparatus structure is simple, cost is low, take up an area less, energy consumption and water consumption low, oily capsicum processing oil smoke waste gas purification method.
Object of the present invention can be reached by following measures:
Oil capsicum processing oil smoke waste gas purification method, be the feature according to this waste gas, enter cleaning system by corrosion resistant smoke pipe after being collected by the waste gas (oil smoke, fiery cigarette, irritative gas) of workshop and process, concrete processing method is as follows:
1, mix waste gas enters pretreater through corrosion resistant smoke pipe;
2, the mix waste gas after step 1 enters pretreater under negative pressure, and with the atomization absorption liquid head-on arranging atomizer and spray, gas-liquid two-phase tentatively mixes.This completes bulk processing.Waste gas to continue to enter in the middle part of tower body in particular fillers layer, a large amount of vaporific absorbing liquid case one absorbing liquid under spraying above and the moisture film complications on filling surface repeatedly mutually circuitous, gas-liquid two-phase mixing mass transfer again, make flue dust, oil be transferred to from waste gas in absorbing liquid case one absorbing liquid.
3, main treating column is entered under the mix waste gas negative pressure after step 2, with the absorbing liquid case two atomization absorption liquid head-on arranging atomizer and spray, gas-liquid two-phase tentatively mixes, waste gas to continue to enter in the middle part of tower body in two layers of packing layer, a large amount of vaporific absorbing liquid case two absorbing liquid under spraying above and the moisture film complications on filling surface repeatedly mutually circuitous, gas-liquid two-phase mixing mass transfer, makes S again
2o, irritative gas (pepper flavor) are transferred in absorbing liquid case two absorbing liquid from waste gas.Waste gas after purification is containing a large amount of water smoke, and water smoke removes water smoke through tower top demist layer.
4, process through step 3 mix waste gas had effectively to be purified, qualified discharge after centrifugal blower is pumped.
Object of the present invention can also be reached by following measures:
In described (1) step, corrosion resistant smoke pipe material is nickeliferous stainless steel.
Pretreater in described (2) step is two-phase absorption tower, and in tower, particular fillers is corrosion resistant cavity ring.Add degreaser in absorbing liquid case one absorbing liquid, this degreaser is the complex mixture formed with inorganic chemical with the organic of water-based, can improve the hydrophily of oil, thus makes oil soluble in water.Absorbing liquid case one absorbing liquid recycles, periodic replacement.
Main treating column in described 3rd step is three phase fluidized bed absorption tower, and in tower, particular fillers is the many-sided ball of corrosion-resistant light weight.Add peculiar smell remover in absorbing liquid case two absorbing liquid, this remover is the complex mixture formed with inorganic chemical with the organic of water-based, can strengthen the dissolubility of irritative gas (pepper flavor), thus makes it soluble in water.Absorbing liquid case two absorbing liquid recycles, periodic replacement.
Beneficial effect of the present invention:
(1) this method clear principle, complete, treatment system energy continuous and steady operation, does not produce secondary pollution.
(2) in tower, waste gas fluidised form is labyrinth type turbulent, not only strengthens gas-liquid two-phase contact, and adds the time of staying.Therefore be different from general spray column, three phase fluidized bed is the best purifier of gas-liquid mass transfer.
(3) oil smoke, fiery cigarette and irritative gas complete purification in same device, and occupation area of equipment is little.
(4) wet dedusting and chemical absorbing process are combined, effectively can remove most of water-fast irritative gas (pepper flavor).
(5) in absorbing liquid, add degreaser and peculiar smell remover, significantly improve treatment effect.
(6) absorbing liquid recycles, and reduces the discharge of waste water.
(7) resistance is little, is only about 300Pa.
(8) directly can discharge after process, introduce high altitude discharge, in addition the emission non-secondary pollution of this device without the need to chimney.
(9) structure is simple, cost is low, occupation of land is few, and power consumption and water consume low.
(10) owing to adopting wet cleaning, fire protecting performance is good.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the present invention's oil capsicum processing oil smoke waste gas purification method process chart.
In figure 1, blast pipe; 2, pretreater; 3, packing layer; 4, absorbing liquid case one;
5, main treating column; 6, fluidized packing material layer; 7, absorbing liquid case two; 8, air-introduced machine; 9, smoke evacuation chimney.
Detailed description of the invention
Oil capsicum processing oil smoke waste gas purification method, be the feature according to this waste gas, enter cleaning system by corrosion resistant smoke pipe after being collected by the waste gas (oil smoke, fiery cigarette, irritative gas) of workshop and process, concrete processing method is as follows:
1, mix waste gas enters pretreater (2) through corrosion resistant smoke pipe;
2, the mix waste gas after step 1 enters pretreater (2) under negative pressure, and with the atomization absorption liquid head-on arranging atomizer and spray, gas-liquid two-phase tentatively mixes.This completes bulk processing.It is inner that waste gas continues to enter special fluidisation packing layer (6) layer (3) in the middle part of tower body, a large amount of vaporific absorbing liquid case one (4) absorbing liquid under spraying above and the moisture film complications on fluidized packing material layer (6) surface repeatedly mutually circuitous, gas-liquid two-phase mixing mass transfer again, make flue dust, oil be transferred to from waste gas in absorbing liquid case one (4) absorbing liquid.
3, main treating column (5) is entered under the mix waste gas negative pressure after step 2, with absorbing liquid case two (7) the atomization absorption liquid head-on arranging atomizer and spray, gas-liquid two-phase tentatively mixes, it is inner that waste gas continues to enter two laminarization packing layer (6) layers (3) in the middle part of tower body, a large amount of vaporific absorbing liquid case two (7) absorbing liquid under spraying above and the moisture film complications on fluidized packing material layer (6) surface repeatedly mutually circuitous, gas-liquid two-phase mixing mass transfer, makes S again
2o, irritative gas (pepper flavor) are transferred in absorbing liquid case two (7) absorbing liquid from waste gas.Waste gas after purification is containing a large amount of water smoke, and water smoke removes water smoke through tower top demist layer.
4, process through step 3 mix waste gas had effectively to be purified, qualified discharge after centrifugal blower is pumped.
2nd process mechanism is as follows: wet dedusting and chemical treatment are combined, and in two-phase adsorption tower, waste gas fluidised form is labyrinth type turbulent, not only strengthens gas-liquid two-phase contact, and adds the time of staying.Be aided with the spray of absorbing liquid case one (4) absorbing liquid simultaneously, under degreaser effect wherein, improve the hydrophily of oil, thus make oil soluble in water.
(3) process mechanism is as follows: three phase fluidized bed is the fluidisation state technology drawn in chemical industry operation, defines a kind of emission-control equipment efficiently.Essential characteristic makes absorbing liquid case two (7) absorbing liquid to carry out absorption reaction, with transport pump, adopts counter current absorption mode.Mix waste gas is under negative pressure state, enter in tower, the atomization absorption liquid of atomizer ejection is head-on set, gas-liquid two-phase tentatively mixes, it is inner that waste gas continues to enter two-layer fluidized packing material layer (6) layer (3) in the middle part of tower body, a large amount of vaporific absorbing liquid under spraying above and the moisture film complications on fluidized packing material layer (6) surface repeatedly mutually circuitous, gas-liquid two-phase mixing mass transfer, makes SO again
2, irritative gas (pepper flavor) is transferred in absorbing liquid from waste gas.The water outlet of purified gas band completes dehydration in labyrinth type separating layer.In whole process, achieve airwater mist cooling fully contact, be aided with absorbing liquid case two (7) absorbing liquid simultaneously, improve treatment effeciency.
Object of the present invention can also be reached by following measures:
In described (1) step, corrosion resistant smoke pipe material is nickeliferous stainless steel.
Pretreater (2) in described (2) step is two-phase absorption tower, and in tower, special fluidisation packing layer (6) is corrosion resistant cavity ring.Add degreaser in absorbing liquid case one (4) absorbing liquid, this degreaser is the complex mixture formed with inorganic chemical with the organic of water-based, can improve the hydrophily of oil, thus makes oil soluble in water.Absorbing liquid case one (4) absorbing liquid recycles, periodic replacement.
Main treating column (5) in described (3) step is three phase fluidized bed absorption tower, the many-sided ball that in tower, special fluidisation packing layer (6) is corrosion-resistant light weight.Add peculiar smell remover in absorbing liquid case two (7) absorbing liquid, this remover is the complex mixture formed with inorganic chemical with the organic of water-based, can strengthen the dissolubility of irritative gas (pepper flavor), thus makes it soluble in water.Absorbing liquid case two (7) absorbing liquid recycles, periodic replacement.
The present invention will 1 be further described below by reference to the accompanying drawings:
According to the feature of oily capsicum processing oil smoke waste gas purification method, process again after the mix waste gas of workshop is collected, its concrete treatment process is as follows: be connected with pretreater (2) by flue 1 by workshop mix waste gas floss hole, and the flue dust under absorbing liquid case one (4) absorbing liquid and fluidized packing material layer (6) effect in waste gas and mist of oil are purified; Waste gas processes through pretreater (2) laggardly becomes owner for the treatment of column (5), the SO under absorbing liquid case two (7) absorbing liquid 7 and fluidized packing material layer (6) 6 act in waste gas
2be purified with irritative gas (pepper flavor); Waste gas after purification is discharged by smoke evacuation chimney (9) by air-introduced machine (8) after demist.
Be exactly more than a complete oily capsicum processing purification of waste gas improve process, if management is strict, strictly control absorbing liquid case one (4) absorbing liquid and absorbing liquid case two (7) absorbing liquid, waste gas incites somebody to action stably qualified discharge after treatment.
Table 1 is for taking from the flue gas result of laboratory test of the final exhaust chimney of Nanming, Kweiyang old foster-mother typical local food Co., Ltd process gas after said method process.Examination criteria performs National Standard of the People's Republic of China " cooking fume discharge standard (GB18483-2001), " discharge standard of air pollutants (GB16297-1996) " secondary standard, " emission standard for odor pollutants (GB14554-93) ".
Nanming, table 1 Kweiyang old foster-mother's typical local food Co., Ltd process gas result of laboratory test
As can be seen from Table 1, adopt the process of processing method of the present invention to give vent to anger, indices not only all reaches the emission request of national regulation, and far below the maximum emission standard value of national regulation, wherein the clearance of oil reaches 95.57%.
Claims (1)
1. an oily capsicum processing oil smoke waste gas purification method, is the feature according to this waste gas, enters cleaning system and processes, it is characterized in that after being collected by the waste gas (oil smoke, fiery cigarette, irritative gas) of workshop by corrosion resistant smoke pipe:
One, mix waste gas enters pretreater through corrosion resistant smoke pipe;
Two, the mix waste gas after step (1) enters pretreater under negative pressure, and with the atomization absorption liquid head-on arranging atomizer and spray, gas-liquid two-phase tentatively mixes.This completes bulk processing.Waste gas to continue to enter in the middle part of tower body in particular fillers layer, a large amount of vaporific absorbing liquid case one (4) absorbing liquid under spraying above and the moisture film complications on filling surface repeatedly mutually circuitous, gas-liquid two-phase mixing mass transfer again, make flue dust, oil be transferred to from waste gas in absorbing liquid case one (4) absorbing liquid.
Three, main treating column is entered under the mix waste gas negative pressure after step (2), with absorbing liquid case two (7) the atomization absorption liquid head-on arranging atomizer and spray, gas-liquid two-phase tentatively mixes, waste gas to continue to enter in the middle part of tower body in two layers of packing layer, a large amount of vaporific absorbing liquid case two (7) absorbing liquid under spraying above and the moisture film complications on filling surface repeatedly mutually circuitous, gas-liquid two-phase mixing mass transfer, makes S again
2o, irritative gas (pepper flavor) are transferred in absorbing liquid case two (7) absorbing liquid from waste gas.Waste gas after purification is containing a large amount of water smoke, and water smoke removes water smoke through tower top demist layer.
Four, process through step (3) mix waste gas had effectively to be purified, qualified discharge after centrifugal blower is pumped.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755757.7A CN104740950A (en) | 2013-12-25 | 2013-12-25 | Oil cooked chilli processing lampblack waste gas purification method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755757.7A CN104740950A (en) | 2013-12-25 | 2013-12-25 | Oil cooked chilli processing lampblack waste gas purification method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000002A (en) * | 2016-07-30 | 2016-10-12 | 曹淅 | Fried pepper sauce processing oil flue waste gas purifying method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332468Y (en) * | 1997-05-20 | 1999-08-11 | 王保林 | Fume and smoke purifying appts. |
| CN2455340Y (en) * | 2000-11-08 | 2001-10-24 | 周浪平 | Oily smoke eliminating lower for multi-layer packing purifying chamber |
| WO2002040137A1 (en) * | 2000-11-17 | 2002-05-23 | Mitsubishi Heavy Industries, Ltd. | Method and apparatus for wet type flue-gas desulfurizaion |
| CN2713340Y (en) * | 2004-07-06 | 2005-07-27 | 余旷樑 | Oil smoke purifier |
| CN2766938Y (en) * | 2005-02-03 | 2006-03-29 | 黄保国 | Smoke gas purifying and deodorizing device |
-
2013
- 2013-12-25 CN CN201310755757.7A patent/CN104740950A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332468Y (en) * | 1997-05-20 | 1999-08-11 | 王保林 | Fume and smoke purifying appts. |
| CN2455340Y (en) * | 2000-11-08 | 2001-10-24 | 周浪平 | Oily smoke eliminating lower for multi-layer packing purifying chamber |
| WO2002040137A1 (en) * | 2000-11-17 | 2002-05-23 | Mitsubishi Heavy Industries, Ltd. | Method and apparatus for wet type flue-gas desulfurizaion |
| CN2713340Y (en) * | 2004-07-06 | 2005-07-27 | 余旷樑 | Oil smoke purifier |
| CN2766938Y (en) * | 2005-02-03 | 2006-03-29 | 黄保国 | Smoke gas purifying and deodorizing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000002A (en) * | 2016-07-30 | 2016-10-12 | 曹淅 | Fried pepper sauce processing oil flue waste gas purifying method |
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Application publication date: 20150701 |