CN104399352B - Novel VOCs treatment equipment and treatment process - Google Patents

Novel VOCs treatment equipment and treatment process Download PDF

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Publication number
CN104399352B
CN104399352B CN201410706619.4A CN201410706619A CN104399352B CN 104399352 B CN104399352 B CN 104399352B CN 201410706619 A CN201410706619 A CN 201410706619A CN 104399352 B CN104399352 B CN 104399352B
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vocs
tank body
ultrasonic
inert carrier
absorber tank
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CN104399352A (en
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程建锋
肖岗行
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HEBEI TIANLONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd.
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TIANLONG ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd
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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 a vocs gas source or a heat carrier is led into the gas inlet, 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 the 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

A kind of new vocs processing equipment and handling process
Technical field
The invention belongs to vocs processing technology field, it is related to a kind of new vocs processing equipment using ultrasonic desorption and place Science and engineering skill.
Background technology
Vocs is the abbreviation of VOC, is so that continues2、noxWith the another concern in countries in the world after freon Exhaust emission focus.Vocs refers to volatile hydrocarbon and their derivative, including hydro carbons, aromatic hydrocarbons, alcohols, aldehyde Class, ketone, esters, amine, organic acid etc..Under normal temperature, vocs evaporation rate is larger, highly volatile, can environment be caused seriously endanger Evil, is mainly manifested in the following aspects: under (1) sunlight irradiates, the vocs meeting in air and noxThere is photochemical reaction, raw Become the photochemical fogs such as ozone, peroxide nitro acyl (pan), aldehydes, stimulate eyes and the respiratory system of people, the body of harm people is good for Health, the growth that simultaneously can harm the crops, even result in the death of crops;(2) most of vocs are poisonous, foul smelling, can make People's infection accumulation property breathing problem, under high concentration acts on suddenly, can cause acute poisoning, or even dead, and some vocs are (such as 3,4- BaPs, vinyl chloride) can be carcinogenic;(3) most of vocs are inflammable and explosive, easily lead to fire and quick-fried when high concentration is discharged Fried;(4) part vocs can damage the ozone layer.
Industrial discharge is the main source of vocs, vocs is processed thus being reduced and eliminating vocs industrial discharge is control The effective means of vocs pollution processed.At present, main industrial treatment technique is null method and absorption method.Null method is by chemistry Or biological respinse, use up, volatile organic matter is converted into water and carbon dioxide by heat, catalyst and microorganism etc., main include Thermal oxide, catalysis burning, biological oxidation, corona method, plasma decomposition, light decomposition method etc..Absorption method be by physics at Science and engineering skill, under uniform temperature, pressure, is separated with handling process such as selective absorber, adsorbent and permoselective membranes, Main inclusion solution absorption, active material absorption, pressure-variable adsorption and condensation method etc..
Wherein active material adsorbs as a kind of most widely used vocs industrial treatment technique, has technical maturity, goes Except rate is high, purify advantage thorough, easy to spread, but in vocs processing procedure, sorbing material adsorption capacity can weaken, adsorb Material can not reuse and cause vocs desorption efficiency is low, high cost, and the invention of China Patent No. 201210186938.8 is special Profit discloses to purify the device and method of total volatile organism, and this device is net to tvoc absorption by activated carbon adsorption unit After change, the tvoc in absorption is desorbed and is drained into cold combustion chamber to the tvoc of absorption by supersonic desorptive transmitter again to be fired Burn resolution process, on the one hand, during the work of supersonic desorptive transmitter, this scheme can only be passed through air by benefit fresh wind port and be assisted Desorption, is passed through air and has the shortcomings that desorption effect difference it is impossible to realize the complete desorption and regeneration of molecular level, Er Qietong as assistance Enter air also can not well activated carbon adsorption unit be carried out, after working long hours, adsorption effect can reduce, absorption Ability can weaken, and on the other hand, although tvoc can pollute to air, has very big use in industrial production after its collection On the way, it is desorbed lower tvoc and carries out combustion decomposition process and not only resource is wasted but also this process also can consume substantial amounts of electricity Can, therefore this scheme has the shortcomings that to be desorbed lower tvoc can not to carry out twice laid, the big waste of resource consumption serious.
Content of the invention
The present invention proposes a kind of new vocs processing equipment and handling process, solves vocs activated carbon in prior art and inhales Attached ultrasonic desorption is with air assisted ultrasonic desorption effect difference it is impossible to be carried out to sorbing material it is impossible to realize molecule The complete desorption and regeneration of level, can be weakened using adsorption capacity for a long time, and the vocs under desorption drains into cold combustion chamber and burnt Resolution process can not carry out that twice laid, resource consumption are big to waste serious technical problem.
A kind of new vocs processing equipment, comprising:
Absorber tank body, the fixed plate being arranged in described absorber tank body, the suction being uniformly arranged in described fixed plate Enclosure material, the air inlet being arranged on described absorber tank body and gas outlet, the on-line detector being arranged on described gas outlet; Ultrasonic desorption apparatus are provided with described absorber tank body, described ultrasonic desorption apparatus include being arranged on outside described absorber tank body The ultrasonic generator in portion is connected with described ultrasonic generator and extends to the ultrasonic conducting device of described absorber tank interior, institute State sorbing material axially in parallel with described ultrasonic conducting device;Described air inlet is connected with vocs source of the gas and heat carrier source stream body respectively Logical, such that it is able to the waste gas containing vocs is passed through by described air inlet, and heat carrier is passed through to described suction by described air inlet Adnexa tank body, described absorber tank body is additionally 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 in parallel with described ultrasonic conducting device.
As further technical scheme, in described absorber tank body, it is additionally provided with filter.
A kind of new vocs handling process using described new vocs processing equipment, comprises the steps:
Step 1: described air inlet is passed through the waste gas containing vocs, vocs is trapped on described sorbing material, and detection is described When gas outlet vocs concentration of emission reaches setting value, switching carries out ultrasonic desorption;
Step 2: described enter inert carrier mouth be passed through inert carrier in described absorber tank body;
Step 3: open described ultrasonic desorption apparatus, continuous firing, close described ultrasonic desorption apparatus, standing, this process Repeat at least 1 time;
Step 4: the inert carrier in described absorber tank body passes through described discharging opening and sends into described storage tank, stands split-phase;
Step 5: described air inlet is passed through heat carrier to described absorber tank body, and described sorbing material is carried out at stripping Reason.
Further, the FREQUENCY CONTROL of ultrasonic desorption apparatus work described in described step 3 is in 20~25khz, temperature control At 20~50 DEG C, 1 continuous working period 20~30min, time of repose 5~10min.
Further, inert carrier standing more than 10min split-phase in described step 4.
Further, in described step 5, stripping processes more than continuous firing 60min, and temperature control is 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 the present invention by sorbing material, by ultrasonic desorption apparatus in inert carrier The sorbing material being adsorbed with vocs is carried out ultrasonic desorption and realizes regeneration, then the inert carrier dissolved with vocs is carried out separating, its In vocs twice laid, inert carrier reuse, finally reuse heat carrier sorbing material is carried out stripping with realize inhale The regeneration further of enclosure material.It can be seen that, the present invention has that simple to operate, sorbing material adsorption capacity will not weaken, adsorption/desorption Can complete within one device, be desorbed under vocs can carry out twice laid, desorption inert carrier can reuse Beneficial effect.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, also may be used So that other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is present configuration schematic diagram;
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 plate, 3- sorbing material, 4- air inlet, 5- gas outlet, 6- ultrasonic desorption dress Put, 61- ultrasonic generator, 62- ultrasonic conducting device, 7- enters inert carrier mouth, 8- discharging opening, 9- storage tank, 10- on-line detector, 11- filter.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work Embodiment, broadly falls into the scope of protection of the invention.
As shown in Fig. 1~Fig. 2, an embodiment of the present invention, a kind of new vocs processing equipment, including absorber tank body 1, The fixed plate 2 being arranged in absorber tank body 1, the sorbing material 3 being uniformly arranged in fixed plate 2, it is arranged on absorber tank body 1 On air inlet 4 and gas outlet 5, the on-line detector 10 being arranged on gas outlet 5;It is provided with ultrasonic de- on absorber tank body 1 Adsorption device 6, ultrasonic desorption apparatus 6 include being arranged on the ultrasonic generator 61 outside absorber tank body 1 and ultrasonic generator 61 company Connect and extend to the ultrasonic conducting device 62 within absorber tank body 1, sorbing material 3 is axially in parallel with described ultrasonic conducting device 62; Air inlet 4 respectively with vocs source of the gas and heat carrier fluid communication, such that it is able to the waste gas containing vocs is passed through by air inlet 4, And heat carrier is passed through to absorber tank body 1 by air inlet 4, described absorber tank body 1 is additionally provided with into inert carrier mouth 7 He Discharging opening 8, discharging opening 8 is connected with storage tank 9.
Fixed plate 2 is arranged on the top of absorber tank body 1 and for netted so that inert carrier and heat carrier are permissible Do not had sorbing material 3 completely and freed in and out absorber tank body 1 inside so that waste gas adsorbed material 3 absorption is fallen vocs and become Discharged air can free in and out inside absorber tank body 1.
On gas outlet 5, the on-line detector 10 of setting, is the organic gas detector of model fg10-pid, to gas outlet The air concentration of 5 discharges carries out real-time monitoring, when concentration of emission reaches setting value, judges that sorbing material 3 reaches adsorption saturation State, switching carries out the vocs desorption of sorbing material 3.
On absorber tank body 1 setting four mouths be two imports and two outlet, be respectively air inlet 4, gas outlet 5, Enter inert carrier mouth 7 and discharging opening 8, wherein air inlet 4 has two effects, and one is that the waste gas containing vocs is passed through air inlet 4 Input to absorber tank body 1, so that vocs and sorbing material in waste gas is fully adsorbed, two is that heat carrier is defeated by air inlet 4 Enter to absorber tank body 1, the sorbing material that adsorption/desorption is crossed with vocs carries out stripping regeneration.As can be seen here, this equipment operation Simply, it is possible to achieve adsorption/desorption completes within one device, and sorbing material adsorption capacity will not weaken.
Supersonic generator 61 produces high-frequency and high-voltage and changes into high-frequency resonance, and high-frequency resonance drive ultrasonic conducting device 62 will Ultrasonic wave conducts in the inert carrier to absorber tank body 1, so that inert carrier is subject to ul-trasonic irradiation to sorbing material 3 Cleaned.Using the cavitation of ultrasonic wave, ultrasonic wave is high with the compression stress of more than 20,000 times per second and decompression power interactivity Frequency mapping mode carries out transmission to inert carrier, in the decompression masterpiece used time, produces vacuum nuclear colony bubble phenomenon, in pressure in inert carrier The contracting masterpiece used time, vacuum nuclear colony bubble is stressed to crush and produces strong impact power, thus peels off the vocs on sorbing material 3 surface, from And reach the purpose of vocs desorption.
Sorbing material 3 is axially in parallel with ultrasonic conducting device 62, so makes ultrasonic wave drive inert carrier in the propagation direction Direct current enter to act on perpendicular acting on sorbing material 3 surface, entering effect by this direct current makes the vocs on sorbing material 3 surface produce Vibration, the convection current of inert carrier generation simultaneously, make enhanced dissolution rate, more preferable action effect is played in the carrying to vocs.
It is additionally provided with filter 11, the effect of filter 11 is to carry out the particle waste residue in waste gas in absorber tank body 1 Filter, thus ensureing that the solid matter in waste gas is filtered.
As shown in figure 3, a kind of new vocs handling process using new vocs processing equipment, comprise the steps:
Step 1: air inlet 4 is passed through the waste gas containing vocs, vocs is trapped on described sorbing material 3, detects gas outlet When 5vocs concentration of emission reaches setting value, switching carries out ultrasonic desorption;
Step 2: enter inert carrier mouth 7 and be passed through inert carrier to absorber tank body 1;
Step 3: open ultrasonic desorption apparatus 6, continuous firing, close ultrasonic desorption apparatus 6, standing, this process repeat to Few 1 time;
Step 4: the inert carrier in absorber tank body 1 sends into storage tank 9 by discharging opening 8, stands split-phase;
Step 5: air inlet 4 is passed through heat carrier to absorber tank body 1, carries out stripping process to sorbing material 3.
Further, particularly as follows: air inlet 4 is passed through the waste gas containing vocs, the vocs in waste gas is trapped in adsorption material to step 1 On material 3, on-line detector 10 detects the vocs concentration of emission of gas outlet 5, when concentration of emission reaches setting value, judges sorbing material 3 reach adsorption saturation state, and switching carries out ultrasonic desorption.
Granular solids particle, vocs and harmless air is had, granular solids particle is filtered by filter 11 in waste gas, Vocs is trapped on the adsorbent material, and remaining harmless air meets standard through on-line detector 10 detection and could pass through gas outlet 5 are discharged.
Further, step 3 is particularly as follows: open ultrasonic desorption apparatus 6, FREQUENCY CONTROL in 20~25khz, duration 20~ 30min, temperature control, at 20~50 DEG C, is the optimum working temperature of supersonic desorptive, close ultrasonic desorption apparatus 6, standing 5~ 10min, makes the vocs under desorption be unlikely to adsorb again, and this process repeats 2~4 times, so that vocs is fully desorbed, until inhaling The vocs of enclosure material 3 absorption is all transferred in inert carrier.Inert carrier can be water, ultrasonic through the vocs of ultrasonic desorption Ripple breaks into tiny molecule and is dispersed in water, but vocs is most of and water insoluble, therefore ultrasonic desorption a period of time after, need by Water dissolved with vocs is stood, so that vocs and water initial gross separation.
Entirely ultrasonic desorption process is carried out in inert carrier, and entering effect using ultrasonic cavitation and direct current will adsorb Vocs on material is transferred in inert carrier, and the continuous repetition that ultrasonication is acted on standing, thus realize sorbing material Vocs desorption process.
Further, step 4, particularly as follows: the inert carrier in absorber tank body 1 sends into storage tank 9 by discharging opening 8, stands 20 ~30min split-phase, vocs rectification process, inert carrier reuses.
According to this handling process, the vocs under desorption just can carry out twice laid, can be used for other after being fractionated Industrial use, the inert carrier being simultaneously desorbed can also reuse, thus saving desorption cost.
Further, step 5, particularly as follows: air inlet 4 is passed through heat carrier to absorber tank body 1, carries out stripping to sorbing material 3 Process, continuous firing 60~120min, at 30~200 DEG C, the heat carrier that stripping is processed can be hot-air to temperature control, passes through Vocs can all be removed by the inert carrier that hot-air goes out to take off residual on process sorbing material 3, and so far sorbing material 3 is realized again Raw, use for absorption next time, it is achieved thereby that circulation in whole equipment for the vocs adsorption/desorption is carried out.Therefore present treatment Technological operation is simple, it is possible to achieve adsorption/desorption completes within one device, and sorbing material adsorption capacity will not weaken.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.

Claims (8)

1. a kind of new vocs processing equipment, including absorber tank body (1), the fixation that is arranged in described absorber tank body (1) Plate (2), the sorbing material (3) being uniformly arranged in described fixed plate (2), the air inlet being arranged on described absorber tank body (1) Mouthful (4) and gas outlet (5), the on-line detector (10) being arranged on described gas outlet (5) it is characterised in that: described absorber Ultrasonic desorption apparatus (6) are provided with tank body (1), described ultrasonic desorption apparatus (6) include being arranged on described absorber tank body (1) Outside ultrasonic generator (61) is connected with described ultrasonic generator (61) and extends to described absorber tank body (1) inside Ultrasonic conducting device (62), described sorbing material (3) is axially in parallel with described ultrasonic conducting device (62);Described air inlet (4) is respectively With vocs source of the gas and heat carrier fluid communication, such that it is able to the waste gas containing vocs, Yi Jiyou are passed through by described air inlet (4) Described air inlet (4) is passed through heat carrier to described absorber tank body (1), and described absorber tank body (1) is additionally provided with into inertia Carrier mouth (7) and discharging opening (8), described discharging opening (8) is connected with storage tank (9).
2. a kind of new vocs processing equipment according to claim 1 it is characterised in that: in described absorber tank body (1) It is additionally provided with filter (11).
3. the new vocs handling process of new vocs processing equipment described in any one in a kind of utilization claim 1~2, its It is characterised by, comprise the steps:
Step 1: described air inlet (4) is passed through the waste gas containing vocs, vocs is trapped on described sorbing material (3), detects institute When stating gas outlet (5) vocs concentration of emission and reaching setting value, switching carries out ultrasonic desorption;
Step 2: described enter inert carrier mouth (7) be passed through inert carrier in described absorber tank body (1);
Step 3: open described ultrasonic desorption apparatus (6), continuous firing, close described ultrasonic desorption apparatus (6), standing, this mistake Cheng Chongfu at least 1 time;
Step 4: the inert carrier in described absorber tank body (1) sends into described storage tank (9), standing by described discharging opening (8) Split-phase;
Step 5: described air inlet (4) is passed through heat carrier to described absorber tank body (1), and described sorbing material (3) is blown De- process.
4. a kind of new vocs handling process according to claim 3, ultrasonic desorption apparatus (6) described in described step 3 The FREQUENCY CONTROL of work in 20~25khz, temperature control at 20~50 DEG C, when 1 continuous working period 20~30min, standing Between 5~10min.
5. a kind of new vocs handling process according to claim 3, in described step 4 inert carrier standing 10min with Upper split-phase.
6. a kind of new vocs handling process according to claim 3, in described step 5, heat carrier stripping processes and continues work Make more than 60min, temperature control is at 30~200 DEG C.
7. a kind of new vocs handling process according to claim 3 or 5 it is characterised in that: inert carrier is specially water.
8. a kind of new vocs handling process according to claim 3 or 6 it is characterised in that: it is empty that heat carrier is specially heat Gas.
CN201410706619.4A 2014-11-27 2014-11-27 Novel VOCs treatment equipment and treatment process Active CN104399352B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN111617596B (en) * 2019-02-28 2022-04-29 中国石化工程建设有限公司 Method for treating gas containing VOCs

Citations (3)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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

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