CN104474843A - Device for treating organic waste gas during production of printing plate material of computer-to-plate - Google Patents
Device for treating organic waste gas during production of printing plate material of computer-to-plate Download PDFInfo
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- CN104474843A CN104474843A CN201410710863.8A CN201410710863A CN104474843A CN 104474843 A CN104474843 A CN 104474843A CN 201410710863 A CN201410710863 A CN 201410710863A CN 104474843 A CN104474843 A CN 104474843A
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- molecular sieve
- absorbing liquid
- absorption tower
- organic solvent
- sieve concentration
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Abstract
The invention relates to a device for treating an organic waste gas during the production of a printing plate material of computer-to-plate. The device comprises a treating pipeline, a cooling loop and a regenerating loop. The regenerating loop is sequentially connected with a regenerating heater, a I-stage molecular sieve concentration runner generating region, a high-temperature heat exchanger, a low-temperature heat exchanger, a regenerating fan and an adsorbing tower and then is divided into two paths, and one path is sequentially connected with an II-stage molecular sieve concentration runner treating region and a branching regenerating fan and then communicated with an inlet of the high-temperature heat exchanger. According to the device, when waste gas reaches emission standard, a recovered organic solvent as a resource can be recycled; meanwhile, no water condensation occurs in a running process of a system; in addition, the device has no phenomena of emitting the organic solvent to atmosphere and losing an absorbing solution, and has the advantages of energy conservation, no emission of the organic solvent, and no loss of the absorbing solution.
Description
Technical field
The present invention relates to organic waste gas treatment device, specifically produce organic waste gas treatment device from computer direct printmaking plate.
Background technology
CTP CPT(computer to plate) after technology refers to and to be input to by original copy and to process in computer, directly by computer information outputted to the technology on forme, printing machine or paper.
Realize CTP and need CPT plate, and the critical process of producing CPT plate is exactly on the aluminum substrate through alligatoring and anodized, apply photosensitive liquid, when the aluminium plate being coated with photosensitive liquid solidifies under the high temperature conditions, finally form photosensitive layer.Because photosensitive liquid forms by by infrared absorbing dye, resol resin, novolac resin and salt compounded of iodine and organic solvent, so, the waste gas containing organic solvent can be produced when the aluminium plate being coated with photosensitive liquid solidifies under the high temperature conditions.
The solvent that current CPT plate production process is commonly used is propylene glycol monomethyl ether, EGME, butanone, MEK, butyrolactone, dimethylacetylamide etc., owing to containing high boiling organic solvent dimethylacetylamide and low boiling point organic solvent propylene glycol monomethyl ether in these solvents simultaneously, EGME, butanone, MEK, butyrolactone, so, be difficult to utilize separately molecular sieve concentration runner or activated carbon fiber to reclaim these mixed solvents, in addition, containing atom N in the molecular structure of dimethylacetylamide, if utilize the method process of catalytic combustion, these can produce exhaust emission environment containing NOx containing waste gas of organic solvent.So far, the domestic organic exhaust gas not having ripe technical finesse CPT plate production process to produce.
Summary of the invention
The object of the invention is to for above-mentioned Problems existing and deficiency, one is provided to make waste gas reach discharge standard, simultaneously, the organic solvent reclaimed is by re-using as resource, and ensure in the low and recovered solvent of the operation energy consumption of system and absorbing liquid all moisture-frees, possess the discharge of energy-conservation, organic solvent-free, without absorbing liquid loss organic waste gas treatment device.
Above-mentioned purpose of the present invention is achieved by the following technical programs:
Produce organic waste gas treatment device from computer direct printmaking plate, comprise process pipeline, cooling circuit and regenerative circuit.
Process pipeline connects exhaust gas entrance, air cleaner, aerial cooler, I grade of molecular sieve concentration runner treatment region, process blower fan, clean air outlet successively.
After cooling circuit connects cooling blower, Cryogenic air cooler, I grade of molecular sieve concentration runner cooling zone, high temperature air cooler successively, high temperature air cooler is communicated with cooling blower and forms loop.
Regenerative circuit forms two along separate routes after connecting regenerative heater, I grade of molecular sieve concentration runner renewing zone, high-temperature heat-exchanging, cryogenic heat exchanger, regeneration blower fan, absorption tower successively, one sequentially connect along separate routes treatment region, along separate routes the process blower fan of II grade of molecular sieve concentration runner after connect regenerative heater entrance, connect high-temperature heat-exchanging entrance after renewing zone, along separate routes the regeneration blower fan of another cooling zone sequentially connecting II grade of molecular sieve concentration runner along separate routes regenerative heater, II grade of molecular sieve concentration runner along separate routes.
Bottom, absorption tower be provided with regenerate gas access that blower fan is communicated with, absorbing liquid exports, top, absorption tower is provided with absorbing liquid entrance, top, absorption tower is provided with gas outlet, absorbing liquid floss hole is provided with bottom absorption tower, absorption tower is built with filler, liquid distribution trough is equipped with on filler top, and absorbing liquid export pipeline and absorbing liquid fill into liquid pipeline and sequentially connect spray pump and be communicated with liquid distribution trough with after absorbing liquid heat exchanger through absorbing liquid entrance.
Absorbing liquid is high boiling organic solvent, and molecular sieve concentration runner is formed by the sorbing material manufacture of height hydrophobic.
Molecular sieve concentration runner is discoid, along disc shaft to being gas flow channel.Molecular sieve concentration runner is divided into three regions by the dividing plate of special manufacture, namely, runner treatment region, rotary wheel regeneration district, runner cooling zone, simultaneously molecular sieve concentration runner rotates under an electric rotating machine drives, the sorbing material on molecular sieve concentration runner under the drive of motor successively through runner treatment region, rotary wheel regeneration district, with runner cooling zone.When containing the waste gas of organic solvent through molecular sieve concentration runner treatment region time, the organic solvent in waste gas is adsorbed by the sorbing material on runner, and waste gas becomes pure air; When the air of high temperature through rotary wheel regeneration district time, being adsorbed on organic solvent on runner will be reproduced air take away from desorption sorbing material.The effect of runner cooling zone is that the molecular sieve concentration runner after utilizing cold air to cool regeneration makes it recover adsorption function.Under normal circumstances, the 1/3-1/20 through runner adsorption zone air mass flow is only had through the regeneration air flow of molecular sieve concentration runner, and the concentration of organic solvent is through the 3-20 of organic solvent concentration in runner treatment region air doubly in rotary wheel regeneration air, so the function of molecular sieve concentration runner is actual is exactly organic exhaust gas Wind Volume, low-concentration organic exhaust gas being become little air quantity, high concentration.
The present invention, by above-mentioned structural design, not only makes waste gas reach discharge standard, simultaneously, the organic solvent reclaimed is by re-using as resource, for enterprise brings benefit, and solvent recovery process carries out at regenerative circuit, because regenerative circuit does not have outside moisture to enter, and be a closed loop, so, without the phenomenon of condensate moisture in solvent recovery running, except ensureing that the operation energy consumption of system is low, all moisture-free in recovered solvent and absorbing liquid.In addition, in the present invention, all air containing organic solvent and absorbing liquid run in airtight closed circuit, there is not the phenomenon to airborne release organic solvent and absorbing liquid loss, compare with other organic solvent recovery method, the present invention possesses energy-conservation, organic solvent-free discharge, without the advantage of absorbing liquid loss.
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Detailed description of the invention
The present invention produces organic waste gas treatment device from computer direct printmaking plate, as shown in Figure 1, waste gas containing organic solvent enters organic waste gas treatment system from a point, first remove particulate in air matter and all harmful substances likely blocking molecular sieve concentration runner through air cleaner 1, then cool through aerial cooler 2, so that molecular sieve absorbing organic solvent from air.When the air containing organic solvent flows through molecular sieve concentration runner treatment region time, sorbing material on molecular sieve concentration runner absorbing organic solvent from air, make air become pure air, through molecular sieve concentration runner treatment region air process blower fan 8 effect under by pure air from b point discharged to air.
When runner through renewing zone thermal regeneration time, sorbing material on runner is heated, sorbing material cooling just must can be recovered the adsorption capacity of runner by runner when turning to runner cooling zone, in Fig. 1,7 is cooling blowers, 5 is cooling circuit Cryogenic air coolers, the temperature of the cooling medium of Cryogenic air cooler 5 is lower than normal temperature, 6 is high temperature air coolers, because the air themperature just leaving molecular sieve concentration runner cooling zone is high, so the cooling medium of cooling circuit high temperature air cooler 6 can be common recirculated cooling water.The function of cooling blower 7 is exactly through Cryogenic air cooler 5, I grade of molecular sieve concentration runner cooling zone, high temperature air cooler 6 by cooling air circulation.
Containing a large amount of low boiling point organic solvents and temperature is high from the air that I grade of molecular sieve concentration runner 3 renewing zone 10 is discharged, therefore, first cool through high-temperature heat-exchanging 12, and then cool through cryogenic heat exchanger 13.C point reclaims from high temperature air cooler 12 and Cryogenic air cooler 13 condensation the organic solvent emission mouth obtained, and the cooling medium of high-temperature heat-exchanging 12 can be common recirculated cooling water.The organic solvent of some is also remained, so regeneration air is sent to absorption tower 18 and carries out absorption process under the effect of regeneration blower fan 14 in high-temperature heat-exchanging 12 and the cooled air of cryogenic heat exchanger 13.In Fig. 1,16 is the spray pumps on absorption tower, and 17 is absorbing liquid heat exchangers, and the function of absorbing liquid heat exchanger 17 utilizes cooling medium cooling and absorbing liquid exactly, and in Fig. 1,15 is absorbing liquid distributors, and its function is exactly that absorbing liquid is distributed on the filler on absorption tower equably.Due to, still containing the organic solvent of some from the gas that absorption tower 18 is discharged, so, the gas of discharging from absorption tower 18 needs to utilize II grade of molecular sieve concentration runner 19 to be further processed, its result is: the air of discharging from absorption tower 18 is separated into two parts, a part is cleaned into pure air and is processed blower fan 21 along separate routes delivers to regenerative heater 11, I grade of molecular sieve concentration runner 3 renewing zone 10 is flow through after this partial air is heated, portion of air enters absorption tower 18 after sending high-temperature heat-exchanging 12 and cryogenic heat exchanger 13 cooling back to by shunt regeneration blower fan 25 more in addition.
The function on absorption tower 18 is exactly utilize the absorbing liquid that can absorb organic solvent from waste gas fully to contact with the waste gas containing organic solvent, and organic solvent in waste gas is absorbed by liquid absorption.The critical piece on absorption tower is exactly absorbing liquid distribution apparatus and filler, and the purposes of filler is the area increasing air and absorbing liquid, and the function of absorbing liquid distributor makes absorbing liquid be distributed to equably on filler exactly.Absorption tower 18 various informative can be reverse-flow, that is, absorbing liquid flows and gas flows from the bottom up from top to bottom, and as shown in Figure 1, absorption tower also can be cross-flow type, that is, absorbing liquid from up to down flows, and the vertical direction flowing that air flows along absorbing liquid.Containing the waste gas of organic solvent behind absorption tower 18, the organic solvent in air is absorbed by liquid absorption, and become relatively clean air, the absorbing liquid absorbing organic solvent will be discharged from floss hole d.The organic solvent of discharging from d mouth can isolate organic solvent through rectification process, and the absorbing liquid isolating organic solvent can reuse discharge absorption tower, fresh absorbing liquid adds to absorption tower from e mouth and maintains carrying out continuously of absorption process simultaneously.In VOCs treatment field, conventional absorbing liquid is high boiling organic solvent, e.g., and 1-METHYLPYRROLIDONE, dimethylacetylamide, ethylene glycol phenyl ether.
Molecular sieve concentration runner material is height hydrophobic, simultaneously again can the material of absorbing organic solvent, when the air containing organic solvent flows through from molecular sieve concentration runner treatment region time, the sorbing material on treatment region is absorbing organic solvent from air only, not adsorption moisture from air.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (1)
1. produce organic waste gas treatment device from computer direct printmaking plate, it is characterized in that: comprise process pipeline, cooling circuit and regenerative circuit, described in,
---process pipeline connects exhaust gas entrance, air cleaner (1), aerial cooler (2), I grade of molecular sieve concentration runner (3) treatment region (9), process blower fan (8), clean air outlet successively;
---after cooling circuit connects cooling blower (7), Cryogenic air cooler (5), I grade of molecular sieve concentration runner (3) cooling zone (4), high temperature air cooler (6) successively, high temperature air cooler (6) is communicated with cooling blower (7) and forms loop;
---regenerative circuit connects regenerative heater (11) successively, I grade of molecular sieve concentration runner (3) renewing zone (10), high-temperature heat-exchanging (12), cryogenic heat exchanger (13), regeneration blower fan (14), absorption tower (18) forms two along separate routes afterwards, one shunt sequentially connects the treatment region (20) of II grade of molecular sieve concentration runner (19), processing blower fan (21) connects regenerative heater (11) entrance afterwards along separate routes, another sequentially connects the cooling zone (22) of II grade of molecular sieve concentration runner (19) along separate routes, regenerative heater (23) along separate routes, the renewing zone (24) of II grade of molecular sieve concentration runner (19), regenerating blower fan (25) connects high-temperature heat-exchanging (12) entrance afterwards along separate routes,
Wherein, absorption tower (18) bottom be provided with regenerate gas access that blower fan (14) is communicated with, absorbing liquid exports, absorption tower (18) top is provided with absorbing liquid entrance, absorption tower (18) top is provided with gas outlet, bottom, absorption tower (18) is provided with absorbing liquid floss hole, absorption tower (18) is built with filler, liquid distribution trough (15) is equipped with on filler top, and absorbing liquid export pipeline and absorbing liquid fill into liquid pipeline and sequentially connect spray pump (16) and be communicated with liquid distribution trough (15) with after absorbing liquid heat exchanger (17) through absorbing liquid entrance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710863.8A CN104474843A (en) | 2014-12-01 | 2014-12-01 | Device for treating organic waste gas during production of printing plate material of computer-to-plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710863.8A CN104474843A (en) | 2014-12-01 | 2014-12-01 | Device for treating organic waste gas during production of printing plate material of computer-to-plate |
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| CN104474843A true CN104474843A (en) | 2015-04-01 |
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| CN201410710863.8A Pending CN104474843A (en) | 2014-12-01 | 2014-12-01 | Device for treating organic waste gas during production of printing plate material of computer-to-plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727795A (en) * | 2017-09-07 | 2018-02-23 | 无锡普爱德环保科技有限公司 | VOC runner performance test devices |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0742041A1 (en) * | 1995-05-10 | 1996-11-13 | Mitsubishi Jukogyo Kabushiki Kaisha | Method for collecting volatile organic substances |
| TW506850B (en) * | 2000-11-21 | 2002-10-21 | Desiccant Technology Corp | Regeneration method of turning-wheel absorption concentration system |
| CN101053733A (en) * | 2007-02-05 | 2007-10-17 | 马军 | Processing method for organic waste gas |
| CN203431887U (en) * | 2013-07-01 | 2014-02-12 | 马军 | Low-concentration organic waste gas processing device |
| CN203598667U (en) * | 2013-09-24 | 2014-05-21 | 马军 | Device for acquiring high-concentration organic waste gas from waste gas containing low-concentration organic solvent |
| CN203852996U (en) * | 2014-04-08 | 2014-10-01 | 马军 | Device for recycling organic solvent during preparation of polyimide film |
| CN104107618A (en) * | 2014-08-07 | 2014-10-22 | 石家庄天龙环保科技有限公司 | Low-concentration large-air-volume waste gas concentration and wind reduction system |
| CN204380484U (en) * | 2014-12-01 | 2015-06-10 | 马军 | Organic waste gas treatment device is produced from computer direct printmaking plate |
-
2014
- 2014-12-01 CN CN201410710863.8A patent/CN104474843A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0742041A1 (en) * | 1995-05-10 | 1996-11-13 | Mitsubishi Jukogyo Kabushiki Kaisha | Method for collecting volatile organic substances |
| TW506850B (en) * | 2000-11-21 | 2002-10-21 | Desiccant Technology Corp | Regeneration method of turning-wheel absorption concentration system |
| CN101053733A (en) * | 2007-02-05 | 2007-10-17 | 马军 | Processing method for organic waste gas |
| CN203431887U (en) * | 2013-07-01 | 2014-02-12 | 马军 | Low-concentration organic waste gas processing device |
| CN203598667U (en) * | 2013-09-24 | 2014-05-21 | 马军 | Device for acquiring high-concentration organic waste gas from waste gas containing low-concentration organic solvent |
| CN203852996U (en) * | 2014-04-08 | 2014-10-01 | 马军 | Device for recycling organic solvent during preparation of polyimide film |
| CN104107618A (en) * | 2014-08-07 | 2014-10-22 | 石家庄天龙环保科技有限公司 | Low-concentration large-air-volume waste gas concentration and wind reduction system |
| CN204380484U (en) * | 2014-12-01 | 2015-06-10 | 马军 | Organic waste gas treatment device is produced from computer direct printmaking plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727795A (en) * | 2017-09-07 | 2018-02-23 | 无锡普爱德环保科技有限公司 | VOC runner performance test devices |
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Application publication date: 20150401 |