CN204337974U - A kind of charcoal absorption desorption waste gas purification apparatus - Google Patents
A kind of charcoal absorption desorption waste gas purification apparatus Download PDFInfo
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- CN204337974U CN204337974U CN201420846090.1U CN201420846090U CN204337974U CN 204337974 U CN204337974 U CN 204337974U CN 201420846090 U CN201420846090 U CN 201420846090U CN 204337974 U CN204337974 U CN 204337974U
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Abstract
The utility model relates to a kind of charcoal absorption desorption waste gas purification apparatus, comprise housing, pipeline, filter and active carbon layer, described Pipe installing is on the sidewall of described housing, part is positioned at described housing, and near the bottom of described housing, be provided with described filter and active carbon layer in described housing, described filter is near described pipeline, and described active carbon layer is positioned at the top of described filter.The utility model can effective purifying exhaust air, makes the waste gas after purification finally can qualified discharge, and in the process of purification, active carbon can realize the regeneration of active carbon after adsorption and desorption.
Description
Technical field
The utility model relates to a kind of charcoal absorption desorption waste gas purification apparatus.
Background technology
This year, people recognized the significant damage of waste gas to environment and human health gradually, were therefore more and more subject to people's attention in the improvement of field of environment engineering to waste gas.
The main treatment technology of domestic and international existing disordered exhaust gas has: thermal oxidation method, physical-chemical process, low-temperature plasma method, plant extraction liquid method, biofiltration process etc.
Thermal oxidation method: utilize the oxidation under high temperature, pollutant is resolved into CO
2, H
2the method of the oxide that O is corresponding with other element.The method can process effectively to nearly all pollutant.But produce the shortcoming that secondary pollution is the method.
Physical-chemical process: by disordered exhaust gas collect, be transported to a series of chemical treatments is housed container in, make pollutant component carry out the processes such as neutralization reaction, oxidation reaction, physical absorption, pollution abatement thing.The method has that process range is wide, simple operation and other advantages, but has secondary pollution to produce, and operating cost is higher.
Low-temperature plasma method: the low temperature plasma that the high energy ion beam utilizing spiral microwave low temperature cold light technology to produce and electron beam are formed, disordered exhaust gas molecule is repeatedly bombarded with the speed of 3,000,000 times to 3,000 ten thousand times per second, various compositions in deexcitation, ionization, cracking waste gas, thus there is the chemical reaction of the series of complexes such as oxidation, again through multistage purification, be that the substance release of cleaning is to the Nature by contamination transform.Concise in technology, the advantage that simple to operate, operating cost is low, wide accommodation, automaticity height are this technology.But be not suitable for combustible and explosive area, and power consumption is comparatively large, operating cost is higher.
Biofiltration process: be fixed on bio-carrier by the extraordinary microorganism species of artificial screening, to be caught by specified microorganisms through biological surface when disordered exhaust gas and digests, thus pollutant is removed.This method operating cost is low, is easy to Automated condtrol, does not produce secondary pollution.
Active carbon adsorption: utilize odor causing substance in charcoal absorption dusty gas, dusty gas is by active carbon layer, and polluter is adsorbed, and clean gas discharges adsorption tower.But general charcoal absorption can reach capacity to time a certain amount of, and just must regenerate or change active carbon, therefore operating cost is higher.
Utility model content
Technical problem to be solved in the utility model is to provide in a kind of active carbon adsorption process, obtains the charcoal absorption desorption waste gas purification apparatus of rationally process after active carbon is saturated, solves the problem that active carbon is wasted, operating cost is higher.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of charcoal absorption desorption waste gas purification apparatus, comprise housing, pipeline, filter and active carbon layer, described Pipe installing is on the sidewall of described housing, part is positioned at described housing, and near the bottom of described housing, be provided with described filter and active carbon layer in described housing, described filter is near described pipeline, and described active carbon layer is positioned at the top of described filter.
The beneficial effects of the utility model are:
1, removal efficiency is high, reaches 90%, is applicable to the advanced treating of waste gas;
2, active carbon realizes regeneration, fundamentally solves replacing problem, the expense of having saved investment and having run;
3, safe operation, not because the reasons such as chemical reaction are inflammable and explosive.
The utility model can effective purifying exhaust air, makes the waste gas after purification finally can qualified discharge, and in the process of purification, active carbon can realize the regeneration of active carbon after adsorption and desorption.
The scope that the utility model is suitable for is: the organic and acidic and alkaline gas produced in chemical industry, electronics, metallurgy, plating, chemical fibre, food, or the rear end of other waste gas purification technology, for the advanced treating of waste gas.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described housing is provided with air inlet, and described pipeline is inserted in described housing by described air inlet.
Further, the top of described housing is provided with exhaust outlet.
Operation principle of the present utility model is as follows:
Air entry is arranged at the equipment or space that produce waste gas, waste gas enters the utility model by centrifugal blower by pipeline, first filtered by filter, pass through active carbon layer subsequently, carry out the purification of waste gas, when waste gas is through active carbon layer, the waste gas in gas will be tightly held by activated carbon, purified gas is discharged by exhaust outlet, thus reaches the object of purifying exhaust air.Just no longer adsorb after charcoal absorption harmful substance in this process reaches capacity, transfer to and carry out separating process, active carbon desorption achieves the regeneration of active carbon.Whole process, active carbon can realize the conversion of adsorption and desorption, thus realizes recycling of active carbon.
The activated charcoal desorption method adopted in the utility model is mainly thermal regeneration method:
Thermal regeneration is divided into low-temperature heat regeneration and high-temperature heating regeneration.
(1) low-temperature heat method of reproduction.The low-molecular-weight hydrocarbon lower for absorption boiling point and the organic saturated charcoal of aromatic series, generally with 100 ~ 200 DEG C of steam strippings, charcoal is regenerated, regeneration can be carried out in adsorption tower.Organic steam after desorption recoverable after condensation.Be usually used in the regenerating active carbon of gas absorption.Steam stripping method also regenerates for the saturated activity charcoal of beer, the process of beverage industry process water prime.
(2) high-temperature heating method of reproduction.High-temperature heating method of reproduction is usually through 850 DEG C of high-temperature heatings, and make absorption organic matter on the activated carbon reach regeneration object after carbonization, activation, absorption recovery rate is high and regeneration effect stable.
Active carbon after dehydration, thermal regeneration overall process generally need through following 3 stages.
(1) drying stage.By moisture content at the wet charcoal of 50% ~ 86%, heat at 100 ~ 150 DEG C of temperature, make adsorbed water evaporation in carbon granule, part low-boiling-point organic compound also volatilizees thereupon simultaneously.Within this stage, institute's consumption of calorie accounts for 50% ~ 70% of regeneration overall process total energy consumption.
(2) firing stage, or claim carbonation stage.Grain charcoal is heated to 150 ~ 700 DEG C.Different organic matters raises with temperature, respectively with the form of volatilization, decomposition, carbonization, oxidation, eliminates from the matrix of active carbon.Usually to this stage, the absorption recovery rate of regenerated carbon reaches 60% ~ 85%.
(3) activation stage.Organic matter, after high temperature cabonization, has considerable part carbide to remain in activated carbon capillary.Now carbide need carry out gasification reaction with the oxidizing gas such as water vapour, carbon dioxide, makes Residual Carbides be gasificated into C0 at about 850 DEG C
2, the gases such as CO.Micropore surface is cleared up, recovers its absorption property.
One, charcoal absorption principle:
Active carbon is a kind of porous carbon containing matter, it has highly developed hole structure, the loose structure of active carbon is which provide a large amount of surface areas, fully can contact with gas (impurity), thus impart absorption property specific to active carbon, make it be very easy to reach the object absorbing and collect impurity.As magnetic force, between all molecules, all there is attractive interaction.Just because of this, a large amount of molecule on active carbon hole wall can produce powerful gravitation, thus reaches the object be attracted to by harmful impurity in aperture.But not every active carbon can adsorb pernicious gas, only have when the pore structure of active carbon is slightly larger than the diameter of pernicious gas molecule, when pernicious gas molecule can be allowed to enter completely, (excessive or too small all not all right) just can reach optimal adsorption effect.Polyurethane, polystyrene foam plate also have adsorptivity, but very littlely can ignore.
Two, active carbon desorption principle:
Desorption is the inverse process of absorption, makes adsorbate from adsorbent surface from the operation of ease.Desorption makes adsorbent reactivation, obtains adsorption production simultaneously.Change operating condition, can make adsorption equilibrium relation that the change of favourable desorption occurs.Conventional method has: 1. reduce pressure desorption.Reduce operating pressure, make equilibrium adsorption capacity, lower than existing adsorbance, desorption occur, this method is used for pressure-variable adsorption.2. desorption by heating.Improve adsorbent temperature, make equilibrium adsorption capacity, lower than existing adsorbance, desorption occur, this method is used for Temp .-changing adsorption.Because adsorbent heat conductivility is poor, production is steam or thermal current are directly passed into the agent of bed heating adsorption, to realize alternating temperature desorption.3. desorption is replaced.During with the agent of steam heating adsorption, adsorbate is replaced and desorption by moisture.The adsorbate that desorption gets off condensation together with steam, then give recovery; Adsorbent then drying, cooling after for subsequent use.With the desorption by heating of steam heating, mostly belong to displacement desorption.4. rinsing desorption.The adsorbate of desorption is taken away with the inert gas heating adsorption agent of heat.This method is applicable to the occasion of adsorbate without the need to reclaiming.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model charcoal absorption desorption waste gas purification apparatus;
In accompanying drawing, the list of parts representated by each label is as follows:
1, housing, 2, pipeline, 3, filter, 4, active carbon layer, 5, air inlet, 6, exhaust outlet.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
A kind of charcoal absorption desorption waste gas purification apparatus, as shown in Figure 1, comprise housing 1, pipeline 2, filter 3 and active carbon layer 4, described pipeline 2 is arranged on the sidewall of described housing 1, part is positioned at described housing 1, and near the bottom of described housing 1, is provided with described filter 3 and active carbon layer 4 in described housing 1, described filter 3 is near described pipeline 2, and described active carbon layer 4 is positioned at the top of described filter 3.
Described housing 1 is provided with air inlet 5, and described pipeline 2 is inserted in described housing 1 by described air inlet 5.
The top of described housing 1 is provided with exhaust outlet 6.
The course of work of the present utility model is specific as follows:
Air entry is arranged at the equipment or space that produce waste gas, waste gas enters charcoal absorption desorption waste gas purification apparatus by centrifugal blower by pipeline 2, first filtered by filter 3, the purification of waste gas is carried out subsequently by active carbon layer 4, when waste gas is through active carbon layer 4, waste gas in gas will be tightly held by activated carbon, and purified gas is discharged by exhaust outlet 6, thus reaches the object of purifying exhaust air.Just no longer adsorb after charcoal absorption harmful substance in this process reaches capacity, transfer to and carry out separating process, active carbon desorption achieves the regeneration of active carbon.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a charcoal absorption desorption waste gas purification apparatus, it is characterized in that: comprise housing, pipeline, filter and active carbon layer, described Pipe installing is on the sidewall of described housing, part is positioned at described housing, and near the bottom of described housing, be provided with described filter and active carbon layer in described housing, described filter is near described pipeline, and described active carbon layer is positioned at the top of described filter.
2. charcoal absorption desorption waste gas purification apparatus according to claim 1, it is characterized in that: described housing is provided with air inlet, described pipeline is inserted in described housing by described air inlet.
3. charcoal absorption desorption waste gas purification apparatus according to claim 1 and 2, is characterized in that: the top of described housing is provided with exhaust outlet.
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| CN201420846090.1U CN204337974U (en) | 2014-12-25 | 2014-12-25 | A kind of charcoal absorption desorption waste gas purification apparatus |
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| CN201420846090.1U CN204337974U (en) | 2014-12-25 | 2014-12-25 | A kind of charcoal absorption desorption waste gas purification apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108096985A (en) * | 2017-12-14 | 2018-06-01 | 南京航空航天大学 | A kind of ultrasonic wave added gas concentration unit and its method of work |
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2014
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108096985A (en) * | 2017-12-14 | 2018-06-01 | 南京航空航天大学 | A kind of ultrasonic wave added gas concentration unit and its method of work |
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