CN106861363B - A kind of application method of purifying VOCs exhaust gas spiral step fin tower - Google Patents
A kind of application method of purifying VOCs exhaust gas spiral step fin tower Download PDFInfo
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- CN106861363B CN106861363B CN201710268262.XA CN201710268262A CN106861363B CN 106861363 B CN106861363 B CN 106861363B CN 201710268262 A CN201710268262 A CN 201710268262A CN 106861363 B CN106861363 B CN 106861363B
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- exhaust gas
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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
- B01D53/0407—Constructional details of adsorbing systems
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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
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0446—Means for feeding or distributing gases
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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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- Engineering & Computer Science (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to volatile organic compound from waste gas Treatment process fields, and in particular to a kind of application method of purifying VOCs exhaust gas spiral step fin tower.It is characterized in that: including the application method of tower body component, deslagging rotary disc assembly, idler assembly, cushion cap.Helical feed is reacted working principle with tower to be effectively combined, capable of solving under air-proof condition adsorbent very well using helical feed, persistently mobile and tower reactor has that phase border contact area is big, the higher advantage of mass-transfer efficiency, can be realized adsorbent filler constantly keeps phase border to contact with VOCs exhaust gas, and disengage in time when saturated, solve continuing purge VOCs exhaust gas technical problem under the conditions of continuous production.
Description
Technical field
The present invention relates to volatile organic compound from waste gas Treatment process fields, and in particular to a kind of purifying VOCs exhaust gas spiral shell
Revolve the application method of ladder fin tower.
Background technique
The gaseous pollutant of industrial discharge is the main source of air environmental pollution object, and wherein volatile organic compounds is useless
Gas (VOCs) is the gaseous pollutant all to environment with serious harm effect, while being also to influence operator in workplace
Health occupational source, it derives from the chemical work such as paint, coating, coating, lubricating oil, rubber extensively
Industry.Since it acts on the considerable damage of human body and natural environment, country has put into effect relevant laws and regulations and it is administered and is discharged
Carry out strict control.The currently used processing method of VOCs treatment technology has combustion method, chemical oxidization method, chemical absorbing
Method, absorption method, bioanalysis etc..Wherein absorption method is a kind of common organic waste-gas purification effective ways, is to utilize various solids
The method that adsorbent (such as active carbon, activated carbon fibre, molecular sieve) carries out adsorption cleaning to the pollutant in discharge exhaust gas.It inhales
Attached method equipment is simple, applied widely, purification efficiency is high, is a kind of traditional waste gas pollution control and treatment technology, and most widely used at present
Treatment process, but adsorbent absorption VOCs saturation after, need replacing adsorbent, then just need stop production to have cooperated
At, and chemical company is generally continuous production, stops very big to the product quality, cost impact that normally produce, needs thus
Purification device needed for can satisfy continuous production.Chinese invention patent (number of patent application 201210077796.1, proprietary term
Referred to as a kind of electrothermal purifying filter element for Wind Volume VOCs waste gas pollution control and treatment) it discloses and a kind of is controlled for Wind Volume VOCs exhaust gas
The electrothermal purifying filter element of reason, including building enclosure and its internal adsorption bed loaded, it is characterised in that: the electrothermal
The box-type shaped polyhedron structure that purifying filter element appearance is air intake surface, outlet air surface is parallel, air intake surface, outlet air surface are the more of one or more layers
Hole sieve plate or sieve, the building enclosure include hermetic unit and above-mentioned air intake surface, outlet air surface；Adsorption bed is by active carbon
Eyelet fabric or porous activated carbon fiber cloth are formed by stacking by plane compression, adsorption bed any two opposing end surface or are connect therewith
Near position is equipped with electrode A and electrode B, and electric current can be passed through to adsorption bed, galvanic couple is equipped in adsorption bed, in electrothermal heating process
The temperature of middle test adsorption bed；Alternatively, the electrothermal purifying filter element appearance be cylindrical body, building enclosure by inner cylinder,
End cap and outer barrel composition, inner cylinder and outer barrel are respectively air intake surface and outlet air surface, and inner cylinder is closed at one end hollow more
Hole cylindrical body, is closely wound active carbon eyelet fabric thereon or porous activated carbon fiber cloth forms adsorption bed, and outer barrel is by one layer
Or multilayer is netted or porous material is made, and electricity is arranged using end cap as electrode or in adsorption bed upper and lower end face or close position
Pole A and electrode B can be passed through electric current to adsorption bed, galvanic couple are arranged in adsorption bed, test adsorbent bed during electrothermal heating
The temperature of layer；The active carbon eyelet fabric shape of a mesh is round, ellipse or polygon, two holes of longitudinal arbitrary neighborhood
Internal diameter be greater than its hole wall, using longitudinally be closely wound or plane compress superposition by the way of form adsorption bed；Or laterally take up an official post
Anticipate two adjacent holes internal diameter be greater than its hole wall, using laterally be closely wound or plane compress superposition by the way of form adsorbent bed
Layer；The porous activated carbon fiber cloth, the shape in hole are round, ellipse or polygon, two holes of longitudinal arbitrary neighborhood
Internal diameter be greater than its pitch of holes, using longitudinally be closely wound or plane compress superposition by the way of form adsorption bed；Or in transverse direction
The internal diameter in two holes of arbitrary neighborhood is greater than its pitch of holes, forms suction in such a way that transverse direction is closely wound or plane compresses superposition
Attached bed；Alternatively, the porous activated carbon fiber cloth, the shape in hole is strip, X-shaped, cross, crescent, arc, L
One of shape is a variety of, and circulation of embarking on journey along longitudinal direction occurs, and the immediate hole in position is in length and breadth in any one hole row adjacent thereto
Projection in both direction has coincidence, using it is vertical or horizontal be closely wound or plane compress superposition by the way of form adsorbent bed
Layer；Or only projection horizontally has coincidence, and the projected length of hole horizontally is greater than between laterally adjacent two hole in the longitudinal direction
Projector distance, or only projection in the longitudinal direction has a coincidence, and the projected length of hole in the longitudinal direction is greater than between longitudinally adjacent two hole
Projector distance horizontally forms adsorbent bed in such a way that vertical and horizontal are alternately closely wound or plane compresses superposition
Layer.(number of patent application 201510779318.9, patent name turn Chinese invention patent for a kind of combined type VOCs Adsorption Concentration
Wheel and its application method) disclose a kind of combined type VOCs Adsorption Concentration runner and its application method, it is characterised in that: it be by
Molecular sieve runner and cellular activated carbon runner be coaxial, with made of diameter docking, the cellular activated carbon runner be located at VOCs into
Mouthful side is laid with adsorption zone, desorption area and cooling zone on each runner, isolation ring, institute is provided at the docking of two runners
Isolation ring is stated for separating the adsorption zone of two runners, desorption area and cooling zone, and cloth wind, reduction windage again；Described point
Son sieve runner is that VOCs adsorbent is attached on cellular web by way of spraying, elution or dipping to obtain.
The prior art one proposes building enclosure for Wind Volume VOCs waste gas pollution control and treatment practical problem and air intake surface, outlet air surface are
The electrothermal purifying filter element technical solution of the adsorption bed of one or more layers porous sieve plate or sieve filling, but inhaling
Electrothermal purifying filter element, which how is replaced, in normal production after attached VOCs exhaust gas saturation does not propose solution；The prior art two
It proposes to adsorb VOCs exhaust gas using molecular sieve runner and cellular activated carbon runner for VOCs waste gas pollution control and treatment practical problem, take off
Attached, concentration, burning technical solution, since VOCs exhaust gas usually carries particulate matter, since particulate matter is that solid cannot lead to
It is detached through air-introduced machine after crossing desorption, concentration and is sent to burner, the more can only collect the more more at adsorbent (active powdered carbon, coating etc.),
Purification device is finally blocked, is given up by the above-mentioned prior art it is found that failing continuing purge VOCs under the conditions of guaranteeing continuous production
Air lift goes out perfect technical solution.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of users of purifying VOCs exhaust gas spiral step fin tower
Method, it is characterized in that:
Step 1, the dependency number of adsorbent absorption VOCs exhaust gas extremely saturation first in the case where simulation field working conditions are collected in laboratory
According to can extract waste gas sample from production scene with the syringe of 1L should be spaced 1 hour and hold to keep waste gas sample representative
Continuous extract is not less than 8 waste gas samples, weighs 100g adsorbent in the balance and fills to empty glass tube, and empty glass tube one terminates gas
Bag, it is another to terminate the syringe sampled, exhaust gas is at the uniform velocity then injected to the glass tube for being filled with adsorbent, observation glass tube is inhaled
Attached dose of filler variation, when 2/3 adsorbent pack length has grease stain to occur, is just detected by the every injection 1L waste gas sample of national standard method
Gas concentration in airbag finally allows the VOCs exhaust gas concentration discharged to judge adsorbent saturation point according to national standard, obtains
Adsorbent amount, VOCs exhaust gas concentration, the related data between total amount, make working curve accordingly, to instruct purifying VOCs useless
Gas spiral step fin Deethanizer design provides foundation.
Step 2, the adsorbent filler entered from adsorbent entrance are distributed through being mounted on the plow harrow at the top of tower body, uniformly spread out
It is multicast on the spiral step fin of rotation, around newel, the installation of helical stand stepwise is fixed piecewise for spiral step fin one end, another
End is by fixed chain consolidation, and center top end is positioned by being mounted on the bearing block at the top of tower body, and bottom end is connect with bracket assembly, props up
Support component location and installation is on rotary case in tower body, and tower body is fixed on cushion cap by support column, and idler assembly is mounted on
On cushion cap, support rotary case simultaneously rotates it around tower body center line, and rotary case drives spiral step fin to rotate by newel,
Adsorbent filler is set to be delivered to rotary case downwards in tower body inside spin.
Step 3, VOCs exhaust gas enters from the VOCs exhaust gas inlet of deslagging rotary disc assembly bottom, uniform through cloth wind tower component
After outlet air under the guidance of spiral step fin spiral, and adsorbent contact mass transfer, it is purified after tail gas through tower body group
The exhaust tube of part is discharged into atmosphere, while VOCs exhaust gas is quickly flowed out through watt grid gap in cloth wind tower component, can be falling
Under absorption VOCs exhaust gas solid waste purge along pedestal inclined-plane to rotary case, dreg scraper knife component is solid waste through deslagging
Mouth discharge.
Inventors have found that solve continuing purge VOCs exhaust gas technical problem under the conditions of continuous production, need adsorbent
Filler constantly keeps phase border to contact with VOCs exhaust gas, and disengages in time when saturated, can be helical feed and tower
Reaction working principle is effectively combined, using helical feed can solve very well under air-proof condition adsorbent it is persistently mobile and
Tower reactor has that phase border contact area is big, the higher advantage of mass-transfer efficiency, and design spiral step fin tower is useless for purifying VOCs
Gas.Spiral step fin around newel spiral terrace, fix piecewise by the installation of helical stand stepwise, the gap between spiral step fin
Flowing is walked from above under for VOCs exhaust gas, and adsorbent is entered the spiral step fin that uniformly booth is multicast to rotation by tower body upper end
On, it is conveyed downwards in tower body inside spin, with the effective contact mass transfer of VOCs exhaust gas, tune can be passed through according to the concentration of VOCs exhaust gas
The revolving speed of whole newel and the inlet amount of adsorbent realize the efficient target using with continuing purge VOCs exhaust gas of adsorbent.
Inventors have found that spiral step fin has guide functions to VOCs exhaust gas, VOCs exhaust gas enters from tower body lower part,
The spiral under the guidance of spiral step fin essentially adds VOCs exhaust gas residence time in tower body, to increase
Time with adsorbent contact mass transfer also makes the reduction of tower body design height, section while improving the purification efficiency of adsorbent
The cost of purification device about.
Inventors have found that spiral step fin tower is substantially also helix transporting device, it can be absorption VOCs exhaust gas
Solid waste is discharged through deslagging rotary disc assembly, will not block purification device and increase ventilation resistance, reduce ventilation device energy
Consumption.
Inventors have found that VOCs exhaust gas through watt grid gap in cloth wind tower component to tower body even distributing wind, and through between watt grid
Flow velocity is very fast when gap, the absorption VOCs exhaust gas solid waste fallen can be purged along tower inclined-plane to rotary case, it is not easy to stifled
Fill in ventilation hole.
Compared with the existing technology, the present invention, which at least contains, has the advantage that first, and helical feed is reacted working principle with tower
It is effectively combined, capable of solving adsorbent under air-proof condition very well using helical feed, persistently mobile and tower reactor has phase
Border contact area is big, the higher advantage of mass-transfer efficiency, can be realized adsorbent filler and constantly keeps phase border with VOCs exhaust gas
Contact, and disengage in time when saturated, solve continuing purge VOCs exhaust gas technical problem under the conditions of continuous production；Second,
Spiral step fin around newel spiral terrace, fix piecewise by the installation of helical stand stepwise, and the gap between spiral step fin supplies
VOCs exhaust gas walks flowing under from above, and adsorbent is entered the spiral step fin that uniformly booth is multicast to rotation by tower body upper end
On, it is conveyed downwards in tower body inside spin, with the effective contact mass transfer of VOCs exhaust gas, tune can be passed through according to the concentration of VOCs exhaust gas
The revolving speed of whole newel and the inlet amount of adsorbent realize the efficient target using with continuing purge VOCs exhaust gas of adsorbent；
Third, inventors have found that spiral step fin tower is substantially also helix transporting device, it can be the solid of absorption VOCs exhaust gas
Waste is discharged through deslagging rotary disc assembly, will not block purification device and increase ventilation resistance, reduce ventilation device energy consumption；The
Four, spiral step fin has guide functions to VOCs exhaust gas, and VOCs exhaust gas enters from tower body lower part, in spiral step fin
Lower spiral is guided, VOCs exhaust gas residence time in tower body is essentially added, contacts biography with adsorbent to increase
The time of matter, the reduction of tower body design height is also made while improving the purification efficiency of adsorbent, the purification device of saving is made
Valence；5th, VOCs exhaust gas through watt grid gap in cloth wind tower component to tower body even distributing wind, and through flow velocity when watt grid gap compared with
Fastly, the absorption VOCs exhaust gas solid waste fallen can be purged along tower inclined-plane to rotary case, it is not easy to block ventilation hole；The
Six, it is run in closed device always, avoids the discharge of pollutant, and can be realized the storage of solid waste centralized collection
It deposits, for the remaining calorific value for being further effectively utilized absorption VOCs exhaust gas solid waste, realizes resource-effective and reduction pollution
Excellent basis work has been done in object discharge.
Detailed description of the invention
Fig. 1 is a kind of schematic view of the front view of the application method of purifying VOCs exhaust gas spiral step fin tower.
Fig. 2 is a kind of overlooking structure diagram of the application method of purifying VOCs exhaust gas spiral step fin tower.
Fig. 3 is a kind of A partial enlargement structural representation of the application method of purifying VOCs exhaust gas spiral step fin tower.
Fig. 4 is a kind of B-B the schematic diagram of the section structure of the application method of purifying VOCs exhaust gas spiral step fin tower.
Fig. 5 is a kind of C partial enlargement structural representation of the application method of purifying VOCs exhaust gas spiral step fin tower.
Fig. 6 is a kind of D partial enlargement structural representation of the application method of purifying VOCs exhaust gas spiral step fin tower.
Fig. 7 is a kind of E partial enlargement structural representation of the application method of purifying VOCs exhaust gas spiral step fin tower.
1- exhaust tube 2- plow harrow 3- adsorbent entrance 4- spiral step fin 5- fixes chain
6- newel 7- tower body 8- tower body component 9- support column 10- deslagging rotary disc assembly
11- idler assembly 12- cloth wind tower component 13- bracket assembly
14-VOCs exhaust gas inlet 15- rotary case 16- dreg scraper knife component 17- slag-drip opening
20- watts of grid 21- pedestal of 18- bearing block 19- cushion cap.
Specific embodiment
The present invention is described further with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, a kind of purifying VOCs exhaust gas spiral step fin tower makes
With method, it is characterized in that:
Step 1, the dependency number of adsorbent absorption VOCs exhaust gas extremely saturation first in the case where simulation field working conditions are collected in laboratory
According to can extract waste gas sample from production scene with the syringe of 1L should be spaced 1 hour and hold to keep waste gas sample representative
Continuous extract is not less than 8 waste gas samples, weighs 100g adsorbent in the balance and fills to empty glass tube, and empty glass tube one terminates gas
Bag, it is another to terminate the syringe sampled, exhaust gas is at the uniform velocity then injected to the glass tube for being filled with adsorbent, observation glass tube is inhaled
Attached dose of filler variation, when 2/3 adsorbent pack length has grease stain to occur, is just detected by the every injection 1L waste gas sample of national standard method
Gas concentration in airbag finally allows the VOCs exhaust gas concentration discharged to judge adsorbent saturation point according to national standard, obtains
Adsorbent amount, VOCs exhaust gas concentration, the related data between total amount, make working curve accordingly, to instruct purifying VOCs useless
Gas spiral step fin Deethanizer design provides foundation.
Step 2, the adsorbent filler entered from adsorbent entrance 3 are distributed through being mounted on the plow harrow 2 at 7 top of tower body, uniformly
Booth is multicast on the spiral step fin 4 of rotation, and 4 one end of spiral step fin around newel 6, fix piecewise by the installation of helical stand stepwise,
The other end is consolidated by fixing chain 5, and 6 top of newel is positioned by the bearing block 18 for being mounted on 7 top of tower body, bottom end and support frame group
Part 13 connects, and for 13 location and installation of bracket assembly on rotary case 15 in tower body 7, tower body 7 is fixed on cushion cap by support column 9
On 19, idler assembly 11 is mounted on cushion cap 19, and support rotary case 15 simultaneously rotates it around 7 center line of tower body, and rotary case 15 is logical
Crossing newel 6 drives spiral step fin 4 to rotate, and adsorbent filler is made to be delivered to rotary case 15 downwards in 7 inside spin of tower body.
Step 3, VOCs exhaust gas enters from the VOCs exhaust gas inlet 14 of 10 bottom of deslagging rotary disc assembly, through cloth wind tower component
After 12 uniform outlet air under the guidance of spiral step fin 4 spiral, and adsorbent contact mass transfer, it is purified after tail gas warp
The exhaust tube 1 of tower body component 8 is discharged into atmosphere, while VOCs exhaust gas is quickly flowed through 20 gap of watt grid in cloth wind tower component 12
Out, the absorption VOCs exhaust gas solid waste fallen can be purged along 21 inclined-plane of pedestal to rotary case 15, dreg scraper knife component 16
Solid waste is discharged through slag-drip opening 17.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is modified.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to of the invention
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (1)
1. a kind of application method of purifying VOCs exhaust gas spiral step fin tower, it is characterized in that: step 1, is received in laboratory first
Adsorbent absorption VOCs exhaust gas can be taken out with the syringe of 1L from production scene to the related data of saturation under collection simulation field working conditions
Waste gas sample is taken, to keep waste gas sample representative, 1 hour lasting extracts should be spaced and be not less than 8 waste gas samples, use balance
100g adsorbent is weighed to fill to empty glass tube, empty glass tube one terminates airbag, and it is another to terminate the syringe sampled, then
Exhaust gas is at the uniform velocity injected to the glass tube for being filled with adsorbent, observation glass tube adsorbent filler variation is long to 2/3 adsorbent filler
When degree has grease stain to occur, the gas concentration in airbag is just detected by the every injection 1L waste gas sample of national standard method, finally according to country
Standard allows the VOCs exhaust gas concentration discharged judge adsorbent saturation point, acquisition adsorbent amount, VOCs exhaust gas concentration, total amount it
Between related data, make working curve, accordingly to instruct purifying VOCs exhaust gas spiral step fin Deethanizer design to provide foundation；Step
Rapid two, the adsorbent filler entered from adsorbent entrance is distributed through being mounted on the plow harrow at the top of tower body, and uniformly booth is multicast to rotation
On spiral step fin, around newel, the installation of helical stand stepwise is fixed piecewise for spiral step fin one end, and the other end is by fixing chain
Consolidation, center top end are positioned by being mounted on the bearing block at the top of tower body, and bottom end is connect with bracket assembly, and bracket assembly is fixed
Position is mounted on rotary case in tower body, and tower body is fixed on cushion cap by support column, and idler assembly is mounted on cushion cap, support
Rotary case simultaneously rotates it around tower body center line, and rotary case drives spiral step fin to rotate by newel, fills out adsorbent
Material is delivered to downwards rotary case in tower body inside spin；Step 3, VOCs exhaust gas from the VOCs exhaust gas of deslagging rotary disc assembly bottom into
Mouthful enter, after the uniform outlet air of cloth wind tower component under the guidance of spiral step fin spiral, and adsorbent contact mass transfer,
Tail gas after purified is discharged into atmosphere through the exhaust tube of tower body component, while VOCs exhaust gas is through watt grid in cloth wind tower component
Gap is quickly flowed out, and the absorption VOCs exhaust gas solid waste fallen can be purged along pedestal inclined-plane to rotary case, dreg scraper knife
Component is discharged solid waste through slag-drip opening.
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| DE2654767C2 (en) * | 1976-12-03 | 1986-07-24 | Leybold-Heraeus GmbH, 5000 Köln | Filters for exhaust gases with radioactive impurities |
| KR20030089119A (en) * | 2002-05-16 | 2003-11-21 | 에이엔비 주식회사 | Gas adsoption tower |
| CN102600697B (en) * | 2012-03-22 | 2016-01-20 | 郑州中斯达环境科技有限公司 | A kind of electrothermal purifying filter element for Wind Volume VOCs waste gas pollution control and treatment |
| CN104707443A (en) * | 2015-01-27 | 2015-06-17 | 福建师范大学 | VOCs tail gas treatment apparatus |
| CN105435582A (en) * | 2015-11-13 | 2016-03-30 | 青岛华世洁环保科技有限公司 | Compound VOCs absorbing concentration turning wheel and use method thereof |
| CN205672741U (en) * | 2016-06-12 | 2016-11-09 | 中国石油化工股份有限公司 | Process the flow-type adsorbent equipment of toxic gas |
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Effective date of registration: 20190415 Address after: 518101 27 Second Industrial City, Tangtou, Songgang Street, Baoan District, Shenzhen City, Guangdong Province Applicant after: Shenzhen far wing intelligent manufacturing Limited by Share Ltd Address before: 362000 the 2 floor of 32 new gate Street and 1916 Creative Industrial Park, Licheng District, Quanzhou, Fujian, China, 1916 Applicant before: Yang Song |
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