CN104399352A - Novel VOCs treatment equipment and treatment process - Google Patents
Novel VOCs treatment equipment and treatment process Download PDFInfo
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- CN104399352A CN104399352A CN201410706619.4A CN201410706619A CN104399352A CN 104399352 A CN104399352 A CN 104399352A CN 201410706619 A CN201410706619 A CN 201410706619A CN 104399352 A CN104399352 A CN 104399352A
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Abstract
The invention provides novel VOCs (Volatile Organic Chemicals) treatment equipment and a treatment process. The VOCs treatment equipment comprises an adsorber tank, a fixed plate, an adsorbing material, a gas inlet, a gas outlet, an online detector, an inert carrier inlet, a discharge hole and a storage tank, wherein an ultrasonic desorption device is arranged on the adsorber tank and comprises an ultrasonic generator and an ultrasonic conductor. The treatment process disclosed by the invention is to use the adsorption material to adsorb the VOCs in the exhaust gas, use the ultrasonic desorption device to perform ultrasonic desorption on the adsorption material adsorbed with the VOCs to realize regeneration, separate the inert carrier dissolved with the VOCs, in which the VOCs wastes are utilized, and the inert carrier is recycled, at last use a heat carrier to blow off the adsorption material, so as to implement further regeneration of the adsorption material. The treatment process disclosed by the invention is simple to operate; the adsorption capability of the adsorption material cannot be weakened; the adsorption and desorption can be finished in one equipment; the desorbed VOCs wastes can be utilized; the desorbed inert carrier can be recycled.
Description
Technical field
The invention belongs to VOCs processing technology field, relate to a kind of novel VOCs treatment facility and the treatment process that utilize ultrasonic desorption.
Background technology
VOCs is the abbreviation of VOC, is the SO that continues
2, NO
xwith the exhaust emission focus of the another concern in countries in the world after freon.VOCs refers to volatile hydrocarbon and their derivative, comprises hydro carbons, aromatic hydrocarbons, alcohols, aldehydes, ketone, ester class, amine, organic acid etc.Under normal temperature, VOCs evaporation rate is comparatively large, and highly volatile can cause serious harm to environment, be mainly manifested in the following aspects: under (1) sunlight irradiates, the VOCs meeting in air and NO
xphotochemical reaction occurs, generates the photochemical fogs such as ozone, peroxide nitro acyl (PAN), aldehydes, stimulate eyes and the respiratory system of people, harm people's is healthy, and the growth that simultaneously can harm the crops, even causes the death of crops; (2) poisonous, the foul smelling of most of VOCs, people can be made to infect accumulation property breathing problem, under high concentration acts on suddenly, can cause acute poisoning, even dead, some VOCs (as 3,4-BaP, vinyl chloride) can be carcinogenic; (3) most of VOCs is inflammable and explosive, easily leads to fire and blast when high concentration is discharged; (4) part VOCs can damage the ozone layer.
Industrial discharge is the main source of VOCs, and being carried out processing by VOCs thus reducing and eliminate VOCs industrial discharge is the effective means that control VOCs pollutes.At present, main industrial treatment technique is null method and absorption method.Null method is by chemistry or biological respinse, uses up, volatile organic matter is converted into water and carbon dioxide by heat, catalyst and microorganism etc., mainly comprise thermal oxide, catalytic combustion, biological oxidation, corona method, plasma decomposition, light decomposition method etc.Absorption method is by physical treatment technology, under uniform temperature, pressure, is separated with treatment process such as selective absorber, adsorbent and permoselective membranes, mainly comprises solution absorption, active material absorption, pressure-variable adsorption and condensation method etc.
Wherein active material absorption is as most widely used a kind of VOCs industrial treatment technique, there is technical maturity, clearance is high, purification thoroughly, be easy to the advantage promoted, but sorbing material adsorption capacity can weaken in VOCs processing procedure, sorbing material can not reuse and cause VOCs desorption efficiency low, cost is high, China Patent No. 201210491453.X discloses a kind of ultrasonic on-line regeneration active carbon filter and regenerating active carbon treatment process thereof, although the active material adsorbed can be carried out ultrasonic desorption and regeneration, but it is a kind of the active carbon desorption apparatus with desorption function, utilize this device can not realize VOCs adsorption treatment, adsorption/desorption is not carry out causing complicated operation in same equipment.
Summary of the invention
The present invention proposes a kind of novel VOCs treatment facility and treatment process, solves VOCs adsorption/desorption process complicated operation in prior art, sorbing material adsorption capacity can weaken, adsorption/desorption can not complete within one device technical problem.
A kind of novel VOCs treatment facility, comprising:
Absorber tank body, the fixed head be arranged in described absorber tank body, be evenly arranged on sorbing material on described fixed head, be arranged on air inlet on described absorber tank body and gas outlet, the on-line detector be arranged on described gas outlet; Described absorber tank body is provided with ultrasonic desorption apparatus, described ultrasonic desorption apparatus comprise be arranged on described absorber tank body outside ultrasonic generator, to be connected with described ultrasonic generator and to extend to the ultrasonic conducting device of described absorber tank interior; Described absorber tank body is also provided with into inert carrier mouth and discharging opening, described discharging opening is connected with storage tank.
As further technical scheme, described sorbing material is axially parallel with described ultrasonic conducting device.
As further technical scheme, in described absorber tank body, be also provided with filter.
Utilize a novel VOCs treatment process for described novel VOCs treatment facility, comprise the steps:
Step 1: described air inlet passes into the waste gas containing VOCs, VOCs is trapped on described sorbing material, detects described gas outlet VOCs concentration of emission when reaching setting value, switches and carries out ultrasonic desorption;
Step 2: described in enter inert carrier mouth and pass into inert carrier in described absorber tank body;
Step 3: open described ultrasonic desorption apparatus, continuous firing, closes described ultrasonic desorption apparatus, and leave standstill, this process repeats at least 1 time;
Step 4: the inert carrier in described absorber tank body sends into described storage tank by described discharging opening, leaves standstill phase-splitting;
Step 5: described air inlet passes into heat carrier to described absorber tank body, carries out stripping process to described sorbing material.
Further, the FREQUENCY CONTROL of ultrasonic desorption apparatus work described in described step 3 controls at 20 ~ 50 DEG C in 20 ~ 25kHz, temperature, 1 continuous working period 20 ~ 30min, time of repose 5 ~ 10min.
Further, in described step 4, inert carrier leaves standstill more than 10min phase-splitting.
Further, stripping more than process continuous firing 60min in described step 5, temperature controls at 30 ~ 200 DEG C.
Further, inert carrier is specially water.
Further, heat carrier is specially hot-air.
VOCs in waste gas is adsorbed by sorbing material by the present invention, the sorbing material being adsorbed with VOCs is carried out ultrasonic desorption in inert carrier by ultrasonic desorption apparatus and realize regeneration, again the inert carrier being dissolved with VOCs is separated, VOCs twice laid wherein, inert carrier reuses, and finally re-uses heat carrier and carries out stripping to realize the further regeneration of sorbing material to sorbing material.Visible, the present invention have simple to operate, sorbing material adsorption capacity can not weaken, adsorption/desorption can complete within one device, the beneficial effect that VOCs can carry out twice laid, the inert carrier of desorption can reuse under desorption.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention;
Fig. 2 is fixed plate structure schematic diagram in the present invention;
Fig. 3 is flow chart of the present invention.
In figure: 1-absorber tank body, 2-fixed head, 3-sorbing material, 4-air inlet, 5-gas outlet, the ultrasonic desorption apparatus of 6-, 61-ultrasonic generator, 62-ultrasonic conducting device, 7-enters inert carrier mouth, 8-discharging opening, 9-storage tank, 10-on-line detector, 11-filter.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Fig. 1 ~ Fig. 2, an embodiment of the present invention, a kind of novel VOCs treatment facility, comprise absorber tank body 1, the fixed head 2 be arranged in absorber tank body 1, be evenly arranged on sorbing material 3 on fixed head 2, be arranged on air inlet 4 on absorber tank body 1 and gas outlet 5, the on-line detector 10 be arranged on gas outlet 5; Absorber tank body 1 is provided with ultrasonic desorption apparatus 6, ultrasonic desorption apparatus 6 comprise be arranged on absorber tank body 1 outside ultrasonic generator 61, to be connected with ultrasonic generator 61 and to extend to the ultrasonic conducting device 62 of absorber tank body 1 inside; Described absorber tank body 1 is also provided with into inert carrier mouth 7 and discharging opening 8, and discharging opening 8 is connected with storage tank 9.
Fixed head 2 is arranged on the top of absorber tank body 1 and is netted, make inert carrier and heat carrier can not have sorbing material 3 completely like this and to free in and out absorber tank body 1 inner, make waste gas by sorbing material 3 adsorb to fall VOCs becomes can discharged air can to free in and out absorber tank body 1 inner.
The on-line detector 10 that gas outlet 5 is arranged, the organic gas detector of to be model be FG10-PID, carries out Real-Time Monitoring, when concentration of emission reaches setting value to the air concentration that gas outlet 5 is discharged, judge that sorbing material 3 reaches absorption saturation state, switch the VOCs desorption carrying out sorbing material 3.
Four mouths that absorber tank body 1 is arranged are two imports and two outlets, be air inlet 4 respectively, gas outlet 5, enter inert carrier mouth 7 and discharging opening 8, wherein air inlet 4 has two effects, one is input in absorber tank body 1 by the waste gas containing VOCs by air inlet 4, VOCs and sorbing material in waste gas are fully adsorbed, two is input in absorber tank body 1 by heat carrier by air inlet 4, and sorbing material adsorption/desorption being crossed to VOCs carries out stripping regeneration.As can be seen here, this equipment operating is simple, can realize adsorption/desorption and complete within one device, and sorbing material adsorption capacity can not weaken.
Supersonic generator 61 produces high-frequency and high-voltage and changes into high-frequency resonance, in the inert carrier that high-frequency resonance drives ultrasonic conducting device 62 to be conducted to by ultrasonic wave in absorber tank body 1, thus makes inert carrier cleaned sorbing material 3 by ul-trasonic irradiation.Utilize hyperacoustic cavitation, ultrasonic wave carries out transmission with the compression stress of more than 20,000 times per second and decompression power interactivity high frequency conversion mode to inert carrier, in the decompression masterpiece used time, vacuum nuclear colony bubble phenomenon is produced in inert carrier, when compression force, vacuum nuclear colony bubble is stressed to crush and produces powerful impulsive force, peels off the VOCs on sorbing material 3 surface thus, thus reaches the object of VOCs desorption.
Sorbing material 3 is axially parallel with ultrasonic conducting device 62, make ultrasonic wave drive the direct current of inert carrier to enter effect in the propagation direction like this and vertically act on sorbing material 3 surface, entering effect by this direct current makes the VOCs on sorbing material 3 surface produce vibration, inert carrier produces convection current simultaneously, make enhanced dissolution rate, better action effect is played to the carrying of VOCs.
Also be provided with filter 11 in absorber tank body 1, the effect of filter 11 is that the particle waste residue in waste gas was carried out filtration, thus ensures that the solid matter in waste gas filters.
As shown in Figure 3, a kind of novel VOCs treatment process utilizing novel VOCs treatment facility, comprises the steps:
Step 1: air inlet 4 passes into the waste gas containing VOCs, VOCs is trapped on described sorbing material 3, when detecting that gas port 5VOCs concentration of emission reaches setting value, switches and carries out ultrasonic desorption;
Step 2: enter inert carrier mouth 7 and pass into inert carrier in absorber tank body 1;
Step 3: open ultrasonic desorption apparatus 6, continuous firing, closes ultrasonic desorption apparatus 6, and leave standstill, this process repeats at least 1 time;
Step 4: the inert carrier in absorber tank body 1 sends into storage tank 9 by discharging opening 8, leaves standstill phase-splitting;
Step 5: air inlet 4 passes into heat carrier to absorber tank body 1, carries out stripping process to sorbing material 3.
Further, step 1 is specially: air inlet 4 passes into the waste gas containing VOCs, VOCs in waste gas is trapped on sorbing material 3, on-line detector 10 detects the VOCs concentration of emission of gas port 5, when concentration of emission reaches setting value, judge that sorbing material 3 reaches absorption saturation state, switch and carry out ultrasonic desorption.
Have granular solids particle, VOCs and harmless air in waste gas, granular solids particle is filtered plate 11 and filters, and VOCs is trapped on the adsorbent material, and remaining harmless air meets standard through on-line detector 10 detection and just discharges by gas outlet 5.
Further, step 3 is specially: open ultrasonic desorption apparatus 6, FREQUENCY CONTROL at 20 ~ 25kHz, duration 20 ~ 30min, temperature controls at 20 ~ 50 DEG C, for the optimum working temperature of supersonic desorptive, close ultrasonic desorption apparatus 6, leave standstill 5 ~ 10min, the VOCs under desorption is made to be unlikely to again to adsorb, this process repeats 2 ~ 4 times, thus makes the abundant desorption of VOCs, until the VOCs that sorbing material 3 adsorbs all is transferred in inert carrier.Inert carrier can be water, broken into tiny molecule through the VOCs of ultrasonic desorption by ultrasonic wave to be scattered in water, but VOCs is most of and water insoluble, therefore after ultrasonic desorption a period of time, need the water being dissolved with VOCs to leave standstill, thus make VOCs and water initial gross separation.
Whole ultrasonic desorption process carries out in inert carrier, utilizes ultrasonic cavitation and direct current to enter effect and is transferred in inert carrier by the VOCs on sorbing material, ultrasonication and the standing continuous repetition acted on, thus realizes the VOCs desorption process of sorbing material.
Further, step 4 is specially: the inert carrier in absorber tank body 1 sends into storage tank 9 by discharging opening 8, leaves standstill 20 ~ 30min phase-splitting, VOCs rectification process, and inert carrier reuses.
According to this treatment process, the VOCs under desorption just can carry out twice laid, namely can be used for other industrial uses after carrying out fractionation, and the inert carrier of desorption also can reuse simultaneously, thus saves desorption cost.
Further, step 5 is specially: air inlet 4 passes into heat carrier to absorber tank body 1, stripping process is carried out to sorbing material 3, continuous firing 60 ~ 120min, temperature controls at 30 ~ 200 DEG C, and the heat carrier of stripping process can be hot-air, go out to take off residual inert carrier on process sorbing material 3 by hot-air VOCs all to be removed, so far sorbing material 3 realizes regeneration, uses, thus achieve the circulation of VOCs adsorption/desorption in whole equipment and carry out for absorption next time.Therefore present treatment technological operation is simple, can realize adsorption/desorption and complete within one device, and sorbing material adsorption capacity can not weaken.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a novel VOCs treatment facility, comprise absorber tank body (1), be arranged on the fixed head (2) in described absorber tank body (1), evenly be arranged on the sorbing material (3) on described fixed head (2), be arranged on the air inlet (4) on described absorber tank body (1) and gas outlet (5), be arranged on the on-line detector (10) on described gas outlet (5), it is characterized in that: described absorber tank body (1) is provided with ultrasonic desorption apparatus (6), described ultrasonic desorption apparatus (6) comprises the ultrasonic generator (61) being arranged on described absorber tank body (1) outside, be connected with described ultrasonic generator (61) and extend to the inner ultrasonic conducting device (62) of described absorber tank body (1), described absorber tank body (1) is also provided with into inert carrier mouth (7) and discharging opening (8), and described discharging opening (8) is connected with storage tank (9).
2. the novel VOCs treatment facility of one according to claim 1, is characterized in that: described sorbing material (3) is axially parallel with described ultrasonic conducting device (62).
3. the novel VOCs treatment facility of one according to claim 1, is characterized in that: be also provided with filter (11) in described absorber tank body (1).
4. utilize a novel VOCs treatment process for novel VOCs treatment facility described in any one in claim 1 ~ 3, it is characterized in that, comprise the steps:
Step 1: described air inlet (4) passes into the waste gas containing VOCs, VOCs is trapped on described sorbing material (3), detects described gas outlet (5) VOCs concentration of emission when reaching setting value, switches and carries out ultrasonic desorption;
Step 2: described in enter inert carrier mouth (7) and pass into inert carrier in described absorber tank body (1);
Step 3: open described ultrasonic desorption apparatus (6), continuous firing, closes described ultrasonic desorption apparatus (6), and leave standstill, this process repeats at least 1 time;
Step 4: the inert carrier in described absorber tank body (1) sends into described storage tank (9) by described discharging opening (8), leaves standstill phase-splitting;
Step 5: described air inlet (4) passes into heat carrier to described absorber tank body (1), carries out stripping process to described sorbing material (3).
5. the novel VOCs treatment process of one according to claim 4, the FREQUENCY CONTROL that ultrasonic desorption apparatus described in described step 3 (6) works controls at 20 ~ 50 DEG C in 20 ~ 25kHz, temperature, 1 continuous working period 20 ~ 30min, time of repose 5 ~ 10min.
6. the novel VOCs treatment process of one according to claim 4, in described step 4, inert carrier leaves standstill more than 10min phase-splitting.
7. the novel VOCs treatment process of one according to claim 4, heat carrier stripping more than process continuous firing 60min in described step 5, temperature controls at 30 ~ 200 DEG C.
8. the novel VOCs treatment process of the one according to claim 4 or 6, is characterized in that: inert carrier is specially water.
9. the novel VOCs treatment process of the one according to claim 4 or 7, is characterized in that: heat carrier is specially hot-air.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854510A (en) * | 2016-05-13 | 2016-08-17 | 郭晓光 | Treatment equipment and method for VOCs |
| CN107983083A (en) * | 2017-11-20 | 2018-05-04 | 珠海天禾环保工程有限公司 | A kind of new VOCs processing equipments and treatment process |
| CN111617596A (en) * | 2019-02-28 | 2020-09-04 | 中国石化工程建设有限公司 | Method for treating gas containing VOCs |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531419A (en) * | 1978-08-25 | 1980-03-05 | Hisaki Hiroyoshi | Gas desorption |
| CN102814099A (en) * | 2012-06-08 | 2012-12-12 | 深圳市科德环保科技有限公司 | Device and method for purifying total volatile organic compounds |
| CN102974138A (en) * | 2012-11-27 | 2013-03-20 | 南京钢铁股份有限公司 | Ultrasonic online regeneration active carbon filter and active carbon regeneration method thereof |
-
2014
- 2014-11-27 CN CN201410706619.4A patent/CN104399352B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531419A (en) * | 1978-08-25 | 1980-03-05 | Hisaki Hiroyoshi | Gas desorption |
| CN102814099A (en) * | 2012-06-08 | 2012-12-12 | 深圳市科德环保科技有限公司 | Device and method for purifying total volatile organic compounds |
| CN102974138A (en) * | 2012-11-27 | 2013-03-20 | 南京钢铁股份有限公司 | Ultrasonic online regeneration active carbon filter and active carbon regeneration method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854510A (en) * | 2016-05-13 | 2016-08-17 | 郭晓光 | Treatment equipment and method for VOCs |
| CN105854510B (en) * | 2016-05-13 | 2019-11-12 | 中蓝环境科技有限公司 | A kind of VOCs processing equipment and method |
| CN107983083A (en) * | 2017-11-20 | 2018-05-04 | 珠海天禾环保工程有限公司 | A kind of new VOCs processing equipments and treatment process |
| CN111617596A (en) * | 2019-02-28 | 2020-09-04 | 中国石化工程建设有限公司 | Method for treating gas containing VOCs |
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| CN104399352B (en) | 2017-01-18 |
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Address after: 051430 in the equipment manufacturing base of Shijiazhuang City, Hebei Province (north of equipment Road, west of Fangxi street, south of Zheshang electromechanical Park, east of South to north water diversion water plant) Patentee after: HEBEI TIANLONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 051430 in the equipment manufacturing base of Shijiazhuang City, Hebei Province (north of equipment Road, west of Fangxi street, south of Zheshang electromechanical Park, east of South to north water diversion water plant) Patentee before: HEBEI TIANLONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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Address after: 051430 in the equipment manufacturing base of Shijiazhuang City, Hebei Province (north of equipment Road, west of Fangxi street, south of Zheshang electromechanical Park, east of South to north water diversion water plant) Patentee after: HEBEI TIANLONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 050000 Hebei city of Shijiazhuang province equipment manufacturing base (equipment Road in the north, west side of the street to the West and south of Zhejiang electromechanical Park, water diversion water east) Patentee before: TIANLONG ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |
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