CN105664665A - Organic waste gas purifying and recycling system - Google Patents
Organic waste gas purifying and recycling system Download PDFInfo
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- CN105664665A CN105664665A CN201610223484.5A CN201610223484A CN105664665A CN 105664665 A CN105664665 A CN 105664665A CN 201610223484 A CN201610223484 A CN 201610223484A CN 105664665 A CN105664665 A CN 105664665A
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- organic waste
- adsorption cleaning
- waste gas
- recycling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
Abstract
The invention discloses an organic waste gas purifying and recycling system and belongs to the field of waste gas treatment.The organic waste gas purifying and recycling system aims to solve the problem that resistance is large in the recycling process due to the fact that granular activated carbon or fiber carbon is adopted for an existing organic waste gas recycling device.The organic waste gas purifying and recycling system comprises a pretreatment system, an adsorption and purification system, a desorption and recycling system and a drying and cooling system; the pretreatment system comprises a pretreatment device and a first fan, and the pretreatment device is a combination of one or more of a wet dust collector, a dry collector and a cooler; the adsorption and purification system comprises an adsorption and purification bed, and the adsorption and purification bed is internally provided with water-resistant honeycomb activated carbon; the adsorption and purification system comprises a steam source, a condenser, a layered tank and a solvent recycling tank; the drying and cooling system comprises a dry filter, a second fan and a heater which are sequentially connected.According to the organic waste gas purifying and recycling system, organic waste gas is purified while organic solvent and water are recycled and reutilized, and the organic waste gas purifying and recycling system has the advantages of saving energy and protecting the environment.
Description
Technical field
The invention belongs to off gas treatment field, it is specifically related to a kind of organic waste-gas purification recovery system.
Background technology
Along with the fast development of national economy, the aromatic solvents such as benzene, toluene, dimethylbenzene and alcohol class, lipid, acetone equal solvent widely use in the industry fields such as press, spraying, packaging, process hides, shoemaking, these mainly lower boiling, volatile organic matter, these performance property organic compound have toxicity mostly, and wherein quite a few finally enters in air with the form of organic exhaust gas, cause the severe contamination of air. Therefore, the recycling of organic exhaust gas is imperative, reclaims organic solvent from the organic exhaust gas of industrial discharge, both can reduce the pollution to environment, reclaim again valuable resource.
Process organic exhaust gas method domestic at present has: the methods such as burning disposal, concentrated catalyticcombustion, absorption recovery, biological treatment and low-temperature plasma. Burning disposal is only suitable for the process of little air quantity high-concentration organic waste gas, working cost height, and solvent can not reclaim, and resource can not reuse. The technology of biology and plasma treatment is also among inquiring into. And adsorb reclaim have working cost low, process effective, reclaim after the advantages such as solvent is reusable, both reached cleaner production object, reached again resource circulation utilization, met the requirement of Sustainable development.
Absorbing process can be divided into by the working order of sorbent material at adsorber: fixed bed; Thermopnore; Boiling (fluidisation) bed. Whether continuous by operating process is divided into interval adsorption process and continuous adsorption process. Generally, the suction type adopting fixed bed more. And the sorbing material adopted is based on particle charcoal and fiber charcoal, owing to this kind of sorbing material is the mode adopting loose heap in the preparation, the pore in particle charcoal or fiber charcoal is caused to be arranged without rule, when organic exhaust gas passes through, the resistance produced is relatively big, therefore consumes energy higher.
Summary of the invention
The invention is intended to provide a kind of organic waste-gas purification recovery system, to solve the problem that when current organic exhaust gas retrieving arrangement adopts particle charcoal or fiber charcoal to cause reclaiming, resistance is bigger.
A kind of organic waste-gas purification recovery system in this scheme, comprises pretreatment system, adsorption cleaning system, de-attached recovery system and dry cooling system:
Described pretreatment system comprises pretreatment unit and by the first blower fan in organic exhaust gas suction pretreatment unit, described pretreatment unit is one or more the combination wherein of wet scrubber, dry collector, water cooler;
Described adsorption cleaning system comprises adsorption cleaning bed, and described adsorption cleaning bed is connected with the first blower fan built with water-resisting type cellular activated carbon, described adsorption cleaning bed;
Described de-attached recovery system comprises vapour source, condenser, layering groove and solvent recuperation groove, and described vapour source, adsorption cleaning bed, condenser, layering groove and solvent recuperation groove connect successively;
Described dry cooling system comprise connect successively dry filter, the 2nd blower fan and well heater, described well heater is connected with adsorption cleaning bed.
The principle of work of the present invention: owing to usually mist can be painted containing part in organic exhaust gas, particulate matter, the impurity such as dust, or the situations such as temperature too high (being greater than 40 DEG C), it is thus desirable in advance organic exhaust gas is carried out pre-treatment, by the first blower fan being connected on pretreatment unit, pre-treatment is carried out by organic exhaust gas suction pretreatment unit, when dust in organic exhaust gas, when the impurity such as particulate matter are more, adopt wet scrubber as pretreatment unit, when the temperature of organic exhaust gas is higher, water cooler is adopted it to be lowered the temperature, when the solid particle polluter in organic exhaust gas is few and temperature is not high, dry filter is adopted to carry out pre-treatment, in use, the condition of production according to reality, above-mentioned three kinds of equipment can also be carried out combination practical in reach maximized pretreating effect.
The impurity of solid particulate class can be got rid of by pretreated organic exhaust gas, owing to adsorption cleaning bed is connected with the first blower fan, therefore adsorption cleaning bed can be entered into, adsorption cleaning bed is built with water-resisting type cellular activated carbon, cellular activated carbon has through hole for ventilating, resistance is less, more save power consumption, it also has the micropore of Nano grade, when organic exhaust gas is by cellular activated carbon, organic solvent in it becomes branch to be adsorbed in micropore, thus realize organic solvent composition and separate from organic exhaust gas, organic exhaust gas after separation is the waste gas being cleaned, can directly be discharged in air, environment is not polluted. along with the continuous absorption of adsorption cleaning bed, when, after the degree of reaching capacity, closing pretreatment system, start the organic solvent composition in adsorption cleaning bed is carried out de-attached recovery.
De-attached recovery system mainly adopts steam to take off attached mode, is led to by steam into cellular activated carbon, and high temperature can allow organic solvent composition be evaporated, and high temperature can allow the molecular motion in organic solvent quicker, therefore can overflow from micropore faster. And organic solvent is de-attached from cellular activated carbon, solvent-water gas mixture (liquid) can be formed along with the moisture in water vapor, then through the cooling liquefaction formation solvent-water mixed liquid of condenser. Solvent-water mixed liquid enters in layering groove, due to organic solvent and the immiscible characteristic of water, and stratification in layering groove, it is achieved solvent is separated with water. The solvent separated enters solvent recuperation groove and reclaims, and the water separated can collect the utilization as other aspects as waste water.
Closedown after de-attached recovery takes off attached recovery system, it is dried cooling again, in dry cooling system, 2nd blower fan is by after carrying out high-effective dust-removing in the natural wind suction dry filter in the external world, then by well heater, the natural wind after filtering is added thermosetting hot blast, is led to by hot blast in adsorption cleaning bed, can carry out evaporating de-removing to the moisture of residual in adsorption cleaning bed, particularly owing to also remaining moisture in cellular activated carbon, it is necessary to after it is carried out de-removing, just can continue on for adsorption cleaning. Treating that moisture removal is complete, close well heater, cellular activated carbon is cooled by the natural wind after direct filtration.
The useful effect of the present invention: as can be seen from above-mentioned principle of work, this scheme by pretreatment system, adsorption cleaning system, de-attached recovery system and dry cooling system with the use of, can organic solvent in high efficiente callback organic exhaust gas, adsorption cleaning bed adopts water-resisting type cellular activated carbon, overcoming tradition sorbing material resistance big, consume energy high shortcoming, while cleaning organic waste gas, achieve again the recycling of organic solvent and water, there is the advantage of energy-conserving and environment-protective.
Further, described adsorption cleaning bed has two or more, due to when de-attached recovery, adsorption cleaning system needs to close, therefore in order to improve the efficiency of production, according to the situation of actual production, the adsorption cleaning bed of two or more is set, it is achieved adsorption cleaning process hockets with de-attached removal process.
Further, being provided with filter cotton in described dry filter, filter cotton installation and removal are more convenient, it is convenient to change at any time, and the successful of filter cotton dedusting, according to actual needs, it is possible to select the filter cotton of specification size to be installed in dry filter.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of a kind of organic waste-gas purification recovery system of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: dry filter 1, the 2nd blower fan 2, well heater 3, vapour source 4, dry collector 5, wet scrubber 6, water cooler 7, first blower fan 8, adsorption cleaning bed 9, condenser 10, layering groove 11, solvent recuperation groove 12.
As shown in Figure 1, a kind of organic waste-gas purification recovery system, comprises pretreatment system, adsorption cleaning system, de-attached recovery system and dry cooling system:
Pretreatment system comprises pretreatment unit and by the first blower fan 8 in organic exhaust gas suction pretreatment unit, pretreatment unit is one or more the combination wherein of wet scrubber 6, dry collector 5, water cooler 7, the present embodiment selects wet scrubber 6, dry collector 5 with water cooler 7 by combinationally using that pipeline is connected successively, water cooler 7 connects the first blower fan 8 by pipeline, organic exhaust gas is by the suction of the first blower fan 8, it is inhaled in wet scrubber 6, then along pipeline, successively by dry collector 5 and water cooler 7.
Adsorption cleaning system comprises adsorption cleaning bed 9, adsorption cleaning bed 9 is built with water-resisting type cellular activated carbon, adsorption cleaning bed 9 is connected by pipeline with the first blower fan 8, lead in adsorption cleaning bed 9 by pretreated organic exhaust gas through the first blower fan 8, by water-resisting type cellular activated carbon, the organic solvent in it is adsorbed, and waste gas is the waste gas after purification after having adsorbed organic solvent, can directly discharge.
De-attached recovery system comprises vapour source 4, condenser 10, layering groove 11 and solvent recuperation groove 12, and described vapour source 4, adsorption cleaning bed 9, condenser 10, layering groove 11 and solvent recuperation groove 12 are connected successively by pipeline, after the absorption of water-resisting type cellular activated carbon is saturated, pretreatment system is closed, open de-attached recovery system, steam is led in adsorption cleaning bed 9, high-temperature water vapor can take off the organic solvent composition except absorption in water-resisting type cellular activated carbon, form organic solvent-water gas mixture, under the cooling effect of condenser 10, form organic solvent-water mixed liquid, enter layering groove 11 stratification afterwards, organic solvent and water is utilized to form the feature of layering, water is separated with organic solvent, water discharges the utilization that may be used for next step, and organic solvent is collected in solvent recuperation groove 12, achieve the recycling of organic solvent.
Dry cooling system comprises the dry filter 1 connected successively, 2nd blower fan 2 and well heater 3, well heater 3 is connected by pipeline with adsorption cleaning bed 9, after de-attached recovery terminates, close de-attached recovery system, now meeting lingering section moisture in water-resisting type cellular activated carbon, it is thus desirable to adsorption cleaning just can be continued on for after being dried removal, 2nd blower fan 2 is by the natural wind suction dry filter 1 in the external world, in dry filter 1, filter cotton is installed, in order to the dust removed in natural wind, wind after filtration is heated to form hot blast by well heater 3, enter in adsorption cleaning bed 9 subsequently, the moisture of steam in it, when moisture removal is complete, close well heater 3, adsorption cleaning bed 9 is cooled by the natural wind after direct filtration.So achieve once purification and the removal process of organic exhaust gas, and the adsorption cleaning bed 9 after dry and cooling can continue to serve as Recovery Purifying process next time, cyclic production like this.
When organic solvent from organic water gas content is bigger, the absorption of water-resisting type cellular activated carbon is faster, and during de-attached removal process, need to close pretreatment system, therefore the present embodiment selects two adsorption cleaning beds 9, when carrying out de-attached recovery, another can proceed adsorption cleaning, so hocketing, production efficiency is higher, and according to practical condition, more adsorption cleaning bed 9 can also be set, in order to improve production efficiency.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this. Should be understood that; for a person skilled in the art, under the prerequisite not departing from present configuration, it is also possible to make some distortion and improvement; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability. The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification sheets etc. record the content that may be used for explaining claim.
Claims (3)
1. an organic waste-gas purification recovery system, it is characterised in that, comprise pretreatment system, adsorption cleaning system, de-attached recovery system and dry cooling system:
Described pretreatment system comprises pretreatment unit and by the first blower fan in organic exhaust gas suction pretreatment unit, described pretreatment unit is one or more the combination wherein of wet scrubber, dry collector, water cooler;
Described adsorption cleaning system comprises adsorption cleaning bed, and described adsorption cleaning bed is connected with the first blower fan built with water-resisting type cellular activated carbon, described adsorption cleaning bed;
Described de-attached recovery system comprises vapour source, condenser, layering groove and solvent recuperation groove, and described vapour source, described adsorption cleaning bed, condenser, layering groove and solvent recuperation groove connect successively;
Described dry cooling system comprise connect successively dry filter, the 2nd blower fan and well heater, described well heater is connected with adsorption cleaning bed.
2. organic waste-gas purification recovery system according to claim 1, it is characterised in that: described adsorption cleaning bed has two or more.
3. organic waste-gas purification recovery system according to claim 2, it is characterised in that: in described dry filter, filter cotton is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610223484.5A CN105664665A (en) | 2016-04-12 | 2016-04-12 | Organic waste gas purifying and recycling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610223484.5A CN105664665A (en) | 2016-04-12 | 2016-04-12 | Organic waste gas purifying and recycling system |
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| CN105664665A true CN105664665A (en) | 2016-06-15 |
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| CN201610223484.5A Pending CN105664665A (en) | 2016-04-12 | 2016-04-12 | Organic waste gas purifying and recycling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109260866A (en) * | 2018-11-15 | 2019-01-25 | 湖南铁榔头机械有限公司 | A kind of bulky cigarette collection and purification processing unit |
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| JP2011031160A (en) * | 2009-07-31 | 2011-02-17 | Toyobo Co Ltd | Organic solvent-containing gas treatment system |
| CN105169886A (en) * | 2015-10-30 | 2015-12-23 | 黄文科 | Efficient energy-saving large-air-quantity low-concentration organic waste gas recovery and treatment device and method |
| CN205517125U (en) * | 2016-04-12 | 2016-08-31 | 贵州蔚蓝环保有限公司 | System for purifying and recovering organic waste gas |
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2016
- 2016-04-12 CN CN201610223484.5A patent/CN105664665A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011031160A (en) * | 2009-07-31 | 2011-02-17 | Toyobo Co Ltd | Organic solvent-containing gas treatment system |
| CN101912714A (en) * | 2010-08-16 | 2010-12-15 | 大拇指环保科技集团(福建)有限公司 | Large-wind-volume low-concentration organic exhaust gas two-step recycling device and method |
| CN105169886A (en) * | 2015-10-30 | 2015-12-23 | 黄文科 | Efficient energy-saving large-air-quantity low-concentration organic waste gas recovery and treatment device and method |
| CN205517125U (en) * | 2016-04-12 | 2016-08-31 | 贵州蔚蓝环保有限公司 | System for purifying and recovering organic waste gas |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109260866A (en) * | 2018-11-15 | 2019-01-25 | 湖南铁榔头机械有限公司 | A kind of bulky cigarette collection and purification processing unit |
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Application publication date: 20160615 |