CN203829876U - Internal heating type depressurizing desorbing regeneration-condensation-and-recycling stationary bed waste gas treatment device - Google Patents
Internal heating type depressurizing desorbing regeneration-condensation-and-recycling stationary bed waste gas treatment device Download PDFInfo
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- CN203829876U CN203829876U CN201420254927.3U CN201420254927U CN203829876U CN 203829876 U CN203829876 U CN 203829876U CN 201420254927 U CN201420254927 U CN 201420254927U CN 203829876 U CN203829876 U CN 203829876U
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- 238000004064 recycling Methods 0.000 title claims abstract description 20
- 239000002912 waste gas Substances 0.000 title abstract description 15
- 238000010438 heat treatment Methods 0.000 title abstract description 14
- 238000001179 sorption measurement Methods 0.000 claims abstract description 35
- 238000009833 condensation Methods 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 27
- 238000011084 recovery Methods 0.000 claims description 17
- 238000003795 desorption Methods 0.000 claims description 16
- 230000001172 regenerating effect Effects 0.000 claims description 12
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- 239000002828 fuel tank Substances 0.000 claims description 7
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- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 47
- 230000008929 regeneration Effects 0.000 abstract description 19
- 238000011069 regeneration method Methods 0.000 abstract description 19
- 230000005494 condensation Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000010815 organic waste Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
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- 238000011065 in-situ storage Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- ZUYKJZQOPXDNOK-UHFFFAOYSA-N 2-(ethylamino)-2-thiophen-2-ylcyclohexan-1-one;hydrochloride Chemical class Cl.C=1C=CSC=1C1(NCC)CCCCC1=O ZUYKJZQOPXDNOK-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
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- 150000007513 acids Chemical class 0.000 description 1
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- 231100001243 air pollutant Toxicity 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
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- 150000001412 amines Chemical class 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
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- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
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- 210000004185 liver Anatomy 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- -1 methane hydrocarbon Chemical class 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical class CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses an internal heating type depressurizing desorbing regeneration-condensation-and-recycling stationary bed waste gas treatment device. The internal heating type depressurizing desorbing regeneration-condensation-and-recycling stationary bed waste gas treatment device comprises a gas collection device, a stationary bed, a discharge device, a regeneration device and a condensation and recycling device; the gas collection device, the stationary bed and the discharge device are communicated sequentially; an adsorption layer is arranged inside the stationary bed; the regeneration device comprises an internal heater, a hot oil pump, a heat conduction oil tank, an electric heat conduction oil furnace and a control system which are sequentially connected; the internal heater is arranged inside the stationary bed; the hot oil pump, the heat conduction oil tank, the electric heat conduction oil furnace and the control system are arranged outside the stationary bed; the condensation and recycling device comprises a vacuum pump, a condenser, a water cooling tower and a liquid storage device; the vacuum pump, the condenser and the liquid storage device are sequentially communicated; the water cooling tower is communicated with the condenser; the vacuum pump is communicated with the stationary bed; the liquid storage device is communicated with an inlet of the stationary bed. The internal heating type depressurizing desorbing regeneration-condensation-and-recycling stationary bed waste gas treatment device has the advantages of improving the removal rate of organic waste gas, reducing resource consumption, allowing recycling utilization and saving waste gas treatment costs.
Description
Technical field
The utility model relates to a kind of internal heat type depressurization desorption regeneration-condensation recovery, fixed bed emission-control equipment.
Background technology
Atmosphere pollution is one of at present outstanding problem of environmental pollution of China, and industrial waste gas is the main source of atmosphere pollution, and agricultural, social environment, natural environment and health of people are had to serious harm.Organic exhaust gas is one of the most difficult gas in industrial waste gas, in industrial production, can produce various organic compounds, mainly comprise various hydro carbons, alcohols, aldehydes, acids, ketone and amine etc., organic exhaust gas can enter human body by respiratory tract and skin, cause temporary and permanent pathology can to people's the organs and systems such as breathing, blood, liver, be detrimental to health.Organic wastewater soluble in water is adopted to conventional treatment method conventionally, as absorption, condensation, absorption etc.; And to being insoluble in the organic wastewater of water, at present complex treatment process, cost of investment are high, and treatment effeciency is not ideal.
Absorption method is a kind of method that conventional processing contains volatile organic matter, and development is the chemical separating operation of morning, technical maturity, applied range.Wherein charcoal absorption is most widely used, but the shortcoming that it exists non-refractory (being greater than 500 ℃), can not keep good adsorption capacity under moistening condition, use cost is high, and active carbon of the prior art is recycled many defects such as there being high, the active obviously reduction of cost.
Utility model content
The utility model provides a kind of internal heat type depressurization desorption regeneration-condensation recovery, fixed bed emission-control equipment.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
Internal heat type depressurization desorption regeneration-condensation recovery, a fixed bed emission-control equipment, comprise gas collecting apparatus, fixed bed, tapping equipment, regenerating unit and condensate recycling device; Gas collecting apparatus, fixed bed and tapping equipment are sequentially communicated with, and are provided with adsorption layer in fixed bed; Regenerating unit comprises internal heater, hot oil pump, heat conduction fuel tank, electric heat-conducting oil furnace and the control system being linked in sequence, and wherein, internal heater is located in fixed bed, and hot oil pump, heat conduction fuel tank, electric heat-conducting oil furnace and control system are located at outside fixed bed; Condensate recycling device comprises vavuum pump, condenser, cooling tower and reservoir, and wherein, vavuum pump, condenser and reservoir are sequentially communicated with, and cooling tower is communicated with condenser, and vavuum pump is communicated with fixed bed, and reservoir is connected with the import of fixed bed.
The concrete mode of communicating that the application is sequentially communicated with, with reference to prior art, is preferably and passes through pipeline connection.When said apparatus is used, waste gas is sent into fixed bed by gas collecting apparatus, and pernicious gas is fixed after bed absorption, and residual air is discharged by tapping equipment; After fixed bed is saturated, adsorption layer is regenerated through regenerating unit, then continues to use.The organic exhaust gas of ADSORPTION IN A FIXED BED is by heating and step-down, and its resolution gas is reclaimed by the vavuum pump being connected with fixed bed, condenser, reservoir, and comprehensive utilization.Above-mentioned fixed bed comprises import and outlet, between condensate recycling device and fixed bed, between gas collecting apparatus and fixed bed, be equipped with switch valve between fixed bed and regenerating unit; When needs are regenerated, the switch valve between closure set device of air and fixed bed, opens the switch valve between fixed bed and condensate recycling device, and by fixed bed port closing.Or fixed bed also can comprise regeneration mouthful, in opening, import and regeneration mouthful, be equipped with switch valve, regeneration mouthful is communicated with condensate recycling device, when needs are regenerated, closes import and outlet, opens the mouth of regenerating.
Above-mentioned reservoir is connected with the import of fixed bed.The waste gas (fixed gas) that regeneration produces so again enters fixed bed and processes, and has has further reduced or remitted the pollution of waste gas to environment.
Above-mentioned condenser provides cooling water by cooling column circulation.
Described absorption method ADSORPTION IN A FIXED BED agent in-situ regeneration, its principle, by heating destructive distillation, is aided with vacuum system double action the organic matter in adsorbent is parsed and reclaimed, and comprehensive utilization.
In fixed bed, be provided with adsorption layer and internal heater.Can guarantee the adsorption efficiency to waste gas like this, can guarantee adsorption layer reproducibility again, after adsorption layer is saturated, can make by the heating of internal heater its regeneration.During regeneration, need to first open after vavuum pump, then heat.Above-mentioned by heating destructive distillation, be aided with vacuum system double action the organic matter in adsorbent is parsed and reclaimed.
Adsorption layer is preferably particle or cellular activated carbon layer, NACF carpet veneer or molecular sieve layer.Can further guarantee adsorption efficiency like this.More preferably adsorption layer is preferably particle or cellular activated carbon layer, and in prior art, most of charcoal absorption is saturated rear directly discarded, not only cause the waste of resource, and cost is very high.
Internal heater is coiled, is evenly arranged between adsorption layer, and heats by dividing wall type.Can guarantee like this efficiency and the uniformity of heating.
Preferably, internal heater one end is communicated with hot oil pump, and the internal heater other end is communicated with electric heat-conducting oil furnace.Pipeline for being communicated with between the two ends of internal heater.
In above-mentioned heat conduction fuel tank, can lay in deep fat, supply with when needed fixed bed, the deep fat of process heater returns electric heat-conducting oil furnace heat cycles and uses.
Above-mentioned mode of heating is dividing wall type heating, adds thermal medium and adopts conduction oil.Can make like this temperature of internal heater be accurately controlled, avoid reduction and the temperature regeneration too low and that cause of the adsorption layer adsorption efficiency that excess Temperature causes not thorough.According to the holding property of the physicochemical property of organic exhaust gas and selected sorbing material, select the heating-up temperature of heat(ing) coil; According to the holding property that has physicochemical property and the selected sorbing material of useless machine gas, electric heat-conducting oil furnace heating-up temperature is adjustable at 50 ℃-200 ℃.
Applicant finds after deliberation: if adsorption layer is regenerated by steam, dry at needs after regeneration, time-consuming cost is high, and resolve not thorough, if direct heat air heat regeneration, the activity of the active carbon after regeneration significantly reduces, and utilize the above-mentioned regeneration of the application, not only simple to operation, and after regeneration, the activity of active carbon is very high, can ceaselessly recycle, with respect to other active carbon regenerating technologies of the prior art, the application's active carbon regenerating technology is significantly extended the service life of active carbon always.
Preferably, fixed bed has more than two, and two above fixed beds are connected and/or and connect.Between above-mentioned fixed bed, can and connect and can connect, preferably, have at least and more than the two-way that connects, when Dang Yi road is saturated like this, regenerate, do not affect the normal sorption on other road, can realize and replace continuous absorption, also can multichannel work simultaneously, improve adsorption efficiency, more preferably, two above fixed beds of Bing Lianmei road series connection, can realize so the multistage absorption of waste gas, improve adsorption efficiency.
Further preferably, fixed bed has more than one group, and every group of two of comprising and connecting fixed bed above, when fixed bed has when more than two, is connected between each group.Can carry out multistage absorption to high-concentration organic waste gas like this, and the regeneration of any fixed bed or maintenance, the normal use of other fixed bed do not affected.
Above-mentioned gas collecting apparatus comprises gas skirt, gas gathering manifold and the pretreatment unit that order is communicated with, and wherein, pretreatment unit is communicated with fixed bed; Tapping equipment comprises air-introduced machine and the aiutage that order is communicated with, and wherein, air-introduced machine is connected with the outlet of fixed bed; Condensate recycling device also comprises the recover being connected with reservoir.
Organic exhaust gas enters gas gathering manifold through gas skirt and then enters pretreatment unit, the application's pretreatment is conventional pretreatment, as washing, alkali cleanings etc. are mainly the particles of getting rid of in waste gas, enter in the adsorption layer of fixed bed and carry out the operation of normal temperature negative-pressure adsorption, gas after absorption is through air-introduced machine, by aiutage qualified discharge.The liquid of collecting in recover can be used as solvent also can send to separation, to obtain pure substance.
Above-mentioned internal heat type depressurization desorption regeneration-condensation recovery, fixed bed emission-control equipment, also comprise the differential manometer being connected with outlet with fixed bed import.By differential manometer, can judge that whether adsorption layer is saturated like this, carry out as required parse operation.
Fixed bed is provided with switching control pilot.Can conveniently control the start and stop of fixed bed like this.In absorption and two different operating process of parsing, by valve, control switching, can carry out simultaneously, also can report to the leadship after accomplishing a task and carry out.Do not affect the continuity of production.
Said apparatus is preferably applicable to boiling point at the organic exhaust gas of 60 ℃-180 ℃, and waste gas absorption efficiency is greater than 90%.
The NM technology of the utility model is prior art.
A kind of internal heat type depressurization desorption of the utility model regeneration-condensation recovery, fixed bed emission-control equipment, by the absorption-parse cycle of fixed bed, saturated-unsaturated circulation of fixed bed heating step-down, makes sorbing material in-situ regeneration thereby reach, and the object of organic solvent is reclaimed in resolution gas condensation; Improve the clearance of organic exhaust gas, the recovery utilization rate of adsorption layer and recycling economy simultaneously, reduced resource consumption, can be recycled, significantly saved the cost of exhaust-gas treatment, non-secondary pollution, significantly reduced use cost.
Said apparatus been has not only has been reduced or remitted the pollution of waste gas to environment, and gained waste gas is recycled, and turns waste into wealth; Fixed bed regeneration is used, above-mentioned improvement has brought immeasurable economic benefit simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of internal heat type depressurization desorption regeneration-condensation recovery, fixed bed emission-control equipment;
Fig. 2 is the structural representation of internal heater and heater.
In figure, 1 is organic exhaust gas, and 2 is moisturizing, and 3 is qualified discharge, and 4 is resolution gas, and 5 is fixed gas, and 6 is internal heater, and in figure, the direction of arrow is Flow of Goods and Materials direction.
The specific embodiment
In order to understand better the utility model, below in conjunction with embodiment, further illustrate content of the present utility model, but content of the present utility model is not only confined to the following examples.
Embodiment 1
As shown in Figure 1-2, internal heat type depressurization desorption regeneration-condensation recovery, fixed bed emission-control equipment, comprise gas collecting apparatus, fixed bed, tapping equipment and regenerating unit, condensate recycling device; Gas collecting apparatus, fixed bed and tapping equipment are sequentially communicated with; Regenerating unit comprises internal heater, hot oil pump, heat conduction fuel tank, electric heat-conducting oil furnace and the control system in fixed bed that be located at of order connection, wherein, internal heater is located in fixed bed, and hot oil pump, heat conduction fuel tank, electric heat-conducting oil furnace and control system are located at outside fixed bed; Condensate recycling device comprises vavuum pump, condenser, cooling tower and reservoir, and wherein, vavuum pump, condenser and reservoir are sequentially communicated with, and cooling tower is communicated with condenser, and vavuum pump is communicated with fixed bed, and reservoir is connected with the import of fixed bed; Gas collecting apparatus comprises gas skirt, gas gathering manifold and the pretreatment unit that order is communicated with, and wherein, pretreatment unit is communicated with fixed bed; Tapping equipment comprises air-introduced machine and the aiutage that order is communicated with, and wherein, air-introduced machine is connected with the outlet of fixed bed.
In fixed bed, be provided with adsorption layer and internal heater; Internal heater is coiled, is evenly arranged between adsorption layer, and adsorption layer is granular activated carbon layer; Internal heater one end is communicated with hot oil pump, and the internal heater other end is communicated with electric heat-conducting oil furnace, forms like this closed circuit of conduction oil, realizes circulating-heating.
Above-mentioned fixed bed has mutually and two of connecting, also the comprising with import and export differential manometer, the switching control pilot being connected of every fixed bed.
Above-mentioned each isolated system is all purchased and is obtained, and each concrete device of the application itself all can be used in prior art and install accordingly.
The process of above-mentioned improvement organic exhaust gas is that first organic exhaust gas enters pretreatment unit washing after collecting, and removes dust granules thing; Waste gas enters fixed-bed adsorber and carries out the operation of normal temperature negative-pressure adsorption, and the gas after absorption is through air-introduced machine, then through aiutage qualified discharge.
Above-mentioned differential manometer shows when certain fixed bed pressure is greater than a certain numerical value, shows that absorption reaches saturated or adsorption efficiency decline.Now close this fixed bed organic exhaust gas import, open fixed bed resolution gas valve, open vavuum pump, cooling water tower circulation water, opens incoagulable gas circulation absorption valve, opens reservoir baiting valve and reclaims organic liquor; Then opening electric heat-conducting oil furnace slowly heats up, make temperature more than organic matter boiling point (common organic matter is if solvent based boiling point is all below 160 ℃), about 5-10 ℃ and be incubated a period of time, when obviously reducing, condenser condensation or flow can close this operation; When bed is down to normal temperature, recover normal sorption operation.Another fixed bed repeats by above operation.
Comparative example 1
Traditional active carbon absorption technology: gas gathering system-pretreatment-ADSORPTION IN A FIXED BED-air-introduced machine-exhaust system, substantially the same manner as Example 1, difference is: there is no regenerating unit and condensate recycling device.
Engineering Projects 1
1,, there are four gravure color printing lines in certain plastic colourprinting enterprise, 62 tons of year consumption cyclohexanones, and 283 tons of butyl acetates, amount to 345 tons/year;
2, by adopting embodiment 1 device a set of, exhaust-gas treatment amount 10000M
3/ h, during regeneration, electric heat-conducting oil furnace slowly, interim intensification, controls 8 hours in temperature be raised to 160 ℃ from 50 ℃, the process slowly heating up is also resolving, through running in a year, does not change and adsorbs fixed bed granular activated carbon;
3, the non-methane hydrocarbon emission amount after processing is about 80mg/m
3, meeting < < discharge standard of air pollutants > > (GB16297-1996), the highest clearance of NMHC is 96%;
4, compare with device in employing comparative example 1: the use amount of general activated carbon is 30% left and right of iodine sorption value (900mg/g), the organic matter of cutting down in 345 tons/year of organic exhaust gas needs 1153 tons/year of activated carbon, by 5000 yuan/ton of current activated carbon, year consumes approximately 5,770,000 yuan of activated carbon, as calculate useless activated carbon when the useless words (approximately 3000 yuan/ton) of disposing of danger, cost is higher, annual approximately 3,460,000 yuan, amounts to 9,230,000 yuan.
Adopt after this technique, get final product qualified discharge, year only 10 tons of operation operation expense of raw materials active carbons (still using), save more than 900 ten thousand yuan.(disregarding the electricity charge of identical use).Below still disregard the income that reclaims organic solvent gained.
Claims (8)
1. internal heat type depressurization desorption regeneration-condensation recovery, a fixed bed emission-control equipment, is characterized in that: comprise gas collecting apparatus, fixed bed, tapping equipment, regenerating unit and condensate recycling device; Gas collecting apparatus, fixed bed and tapping equipment are sequentially communicated with, and are provided with adsorption layer in fixed bed; Regenerating unit comprises internal heater, hot oil pump, heat conduction fuel tank, electric heat-conducting oil furnace and the control system being linked in sequence, and wherein, internal heater is located in fixed bed, and hot oil pump, heat conduction fuel tank, electric heat-conducting oil furnace and control system are located at outside fixed bed; Condensate recycling device comprises vavuum pump, condenser, cooling tower and reservoir, and wherein, vavuum pump, condenser and reservoir are sequentially communicated with, and cooling tower is communicated with condenser, and vavuum pump is communicated with fixed bed, and reservoir is connected with the import of fixed bed.
2. internal heat type depressurization desorption regeneration-condensation recovery as claimed in claim 1, fixed bed emission-control equipment, is characterized in that: internal heater is coiled, is evenly arranged between adsorption layer, and heats by dividing wall type.
3. internal heat type depressurization desorption regeneration-condensation recovery as claimed in claim 2, fixed bed emission-control equipment, is characterized in that: internal heater one end is communicated with hot oil pump, and the internal heater other end is communicated with electric heat-conducting oil furnace.
4. internal heat type depressurization desorption regeneration-condensation recovery, the fixed bed emission-control equipment as described in claim 1-3 any one, it is characterized in that: fixed bed has more than one group, the fixed bed that every group of two of comprising and connecting are above, when fixed bed has when more than two, connects between each group.
5. internal heat type depressurization desorption regeneration-condensation recovery, the fixed bed emission-control equipment as described in claim 1-3 any one, it is characterized in that: gas collecting apparatus comprises gas skirt, gas gathering manifold and the pretreatment unit that order is communicated with, wherein, pretreatment unit is communicated with fixed bed; Tapping equipment comprises air-introduced machine and the aiutage that order is communicated with, and wherein, air-introduced machine is connected with the outlet of fixed bed; Condensate recycling device also comprises the recover being connected with reservoir.
6. internal heat type depressurization desorption regeneration-condensation recovery, the fixed bed emission-control equipment as described in claim 1-3 any one, is characterized in that: also comprise for detecting the differential manometer outside fixed bed that is located at of fixed bed import and outlet pressure reduction.
7. internal heat type depressurization desorption regeneration-condensation recovery, the fixed bed emission-control equipment as described in claim 1-3 any one, is characterized in that: fixed bed is provided with switching control pilot.
8. internal heat type depressurization desorption regeneration-condensation recovery, the fixed bed emission-control equipment as described in claim 1-3 any one, is characterized in that: adsorption layer is particle or cellular activated carbon layer, NACF carpet veneer or molecular sieve layer.
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| CN201420254927.3U CN203829876U (en) | 2014-05-16 | 2014-05-16 | Internal heating type depressurizing desorbing regeneration-condensation-and-recycling stationary bed waste gas treatment device |
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| CN201420254927.3U CN203829876U (en) | 2014-05-16 | 2014-05-16 | Internal heating type depressurizing desorbing regeneration-condensation-and-recycling stationary bed waste gas treatment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014220A (en) * | 2014-05-16 | 2014-09-03 | 许征 | Internal-heat type apparatus for processing fixed-bed exhaust gas by employing pressure-reduction desorption regeneration and condensation recovery |
| CN105148689A (en) * | 2015-08-24 | 2015-12-16 | 王新建 | Adsorption tower for drying compressed air |
-
2014
- 2014-05-16 CN CN201420254927.3U patent/CN203829876U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014220A (en) * | 2014-05-16 | 2014-09-03 | 许征 | Internal-heat type apparatus for processing fixed-bed exhaust gas by employing pressure-reduction desorption regeneration and condensation recovery |
| CN105148689A (en) * | 2015-08-24 | 2015-12-16 | 王新建 | Adsorption tower for drying compressed air |
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