CN110813031A - Formaldehyde adsorption device for coating and use method thereof - Google Patents
Formaldehyde adsorption device for coating and use method thereof Download PDFInfo
- Publication number
- CN110813031A CN110813031A CN201911170844.XA CN201911170844A CN110813031A CN 110813031 A CN110813031 A CN 110813031A CN 201911170844 A CN201911170844 A CN 201911170844A CN 110813031 A CN110813031 A CN 110813031A
- Authority
- CN
- China
- Prior art keywords
- pipe
- formaldehyde
- gas
- paint
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B01D53/14—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 absorption
- B01D53/1487—Removing organic compounds
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
Abstract
The invention discloses a formaldehyde adsorption device for paint and a using method thereof, wherein the formaldehyde adsorption device comprises a paint barrel, an adsorption cover with a downward opening is fixed right above the paint barrel through the supporting action of a supporting frame, a large-size air suction fan is arranged on an air delivery hose, a spray coil pipe is arranged at the top of a tank cavity of a spray tank, the other end of a main air inlet pipeline is integrally communicated with a first branch air pipe and a second branch air pipe, a first opening and closing valve body is arranged at the position of a right end pipe body of the first branch air pipe, a second opening and closing valve body is arranged at the position of a right end pipe body of the second branch air pipe, and an active carbon adsorption block is inserted into a cavity between a left accommodating baffle and a right accommodating baffle from an insertion through hole. The formaldehyde generated in the paint bucket can be directly adsorbed into the adsorption cover, and the paint bucket is deeply purified through two treatments, so that the paint bucket is excellent in treatment effect and high in adaptability.
Description
Technical Field
The invention relates to the technical field related to gas adsorption and purification, in particular to a formaldehyde adsorption device for paint and a using method thereof.
Background
With the development of society, building coatings are widely used, but in the production process of the building coatings, a large amount of formaldehyde gas emitted from a coating barrel is diffused into the surrounding atmosphere, once formaldehyde is absorbed by a human body, the formaldehyde is seriously damaged, and the formaldehyde of the coatings needs to be adsorbed and purified.
The data show that: indoor air pollution is 5-10 times higher than that of the outdoor air, and more than 500 pollutants exist. Indoor air pollution has become a cause of various diseases, and formaldehyde is a main aspect of indoor air pollution.
The health hazard of formaldehyde mainly comprises the following aspects:
a. stimulation: the main harm of formaldehyde is represented by the stimulation effect on skin mucous membrane, and the formaldehyde is a raw pulp toxic substance and can be combined with protein, so that severe stimulation of respiratory tract, edema, eye irritation and headache are generated when the formaldehyde is inhaled at high concentration.
b. Sensitization: the skin directly contacts with formaldehyde to cause allergic dermatitis, mottle, and necrosis, and bronchial asthma can be induced when high concentration formaldehyde is inhaled.
c. Mutagenic action: high concentrations of formaldehyde are also a genotoxic substance. The experimental animal can cause nasopharyngeal tumor under the condition of high concentration inhalation in a laboratory.
d. The prominent performance is as follows: headache, dizziness, hypodynamia, nausea, vomiting, chest distress, ophthalmalgia, throat pain, poor appetite, palpitation, insomnia, weight loss, hypomnesis, vegetative nerve disorder and the like. Long-term inhalation by pregnant women may cause fetal deformity and even death; long-term inhalation by men can lead to teratospermia, death, etc.
Disclosure of Invention
The invention aims to provide a formaldehyde adsorption device for paint and a using method thereof, so as to solve the problems in the background technology.
To achieve the above object, the present invention provides the technical solutions as set forth in claims 1 to 4:
a formaldehyde adsorption device for paint and a using method thereof comprise a paint barrel, wherein an adsorption cover with a downward opening is fixed right above the paint barrel through the supporting action of a supporting frame, one end of an air hose is communicated with the adsorption cover, the other end of the air hose is communicated with an air inlet of a spraying tank, a large-size suction fan is arranged on the air hose, a spraying coil pipe is arranged at the top of a tank cavity of the spraying tank, a plurality of spray heads (not shown) are uniformly distributed on a circumferential pipe body on the spraying coil pipe, a liquid suction pipe is communicated with a liquid inlet of the spraying coil pipe, the other end of the liquid suction pipe extends downwards into the bottom of an inner cavity of a liquid storage tank, a liquid suction pump is further arranged on a pipe body of the liquid suction pipe, an air outlet channel is arranged at the upper left corner of the spraying tank, the end of the air outlet channel is hermetically communicated with a main air inlet pipeline, and a small-size suction fan is arranged on the main air, the integrative intercommunication of another end of main inlet duct has a bronchus and No. two bronchus, bronchus right-hand member body position department of a bronchus is provided with the opening and closing valve body No. one, No. two bronchus right-hand member body position departments are provided with the opening and closing valve body No. two, bronchus and No. two bronchus left end body position departments all are provided with a filtration treatment case, vertically between the box upper and lower lateral wall of filtration treatment case be provided with left holding baffle and right holding baffle, the plate body top position department of the last lateral wall of filtration treatment case, left holding baffle and right holding baffle has seted up one and has inserted the through-hole, and the active carbon adsorption piece is from inserting in the through-hole put into the cavity between left holding baffle and the right holding baffle, the pull handle is installed on the block top of active carbon adsorption piece.
As a further scheme of the invention: and a discharge port is arranged at the bottom end of the right side wall of the spraying tank.
As a still further scheme of the invention: a plurality of air guide through holes are uniformly formed in the plate bodies of the left accommodating baffle plate and the right accommodating baffle plate.
As a still further scheme of the invention: the left ends of the first branch air pipe and the second branch air pipe are converged and communicated at the main exhaust air pipe. .
As a still further scheme of the invention: the pipe body of the main exhaust air pipe is also provided with a small-size exhaust fan.
A formaldehyde adsorption device for paint and a using method thereof are carried out according to the following steps:
the method comprises the following steps: pumping in released formaldehyde: the large-size suction fan is started, formaldehyde generated in the coating bucket can be directly adsorbed into the adsorption cover, and released formaldehyde is sucked.
Step two: primary purification treatment of formaldehyde: the purified liquid in the liquid storage tank is pumped to the spraying coil pipe along the liquid pumping guide pipe by opening the liquid pumping pump, and then is sprayed on the formaldehyde gas under the spraying action of a plurality of spray heads (not shown in the figure), so that the spraying type primary purification purpose is realized, and most of formaldehyde gas is purified.
Step three: secondary purification treatment of formaldehyde: and the residual formaldehyde gas enters the main air inlet pipeline from the air outlet channel, and is purified by utilizing the control of the two filtering treatment boxes and the two opening and closing valve bodies.
Step four: clean gas emission: and under the pumping action of the small-size suction fan, the purified clean gas is exhausted into the atmosphere from the main exhaust pipe.
Compared with the prior art, the invention has the beneficial effects that: the formaldehyde of production can be got into in the absorption cover by direct absorption, utilize and spray and carry out elementary purification purpose, the purification falls most formaldehyde gas, remaining formaldehyde gas gets into main inlet duct from outlet channel afterwards, later through improving into traditional individual layer filtration structure has two filtration treatment casees and two forms of opening and close the valve body, solved traditional single filtration in case take place to destroy need maintain and must carry out the drawback of shutting down, guarantee that gas can last uninterrupted purification treatment, the treatment effect is excellent, adaptability is high.
Drawings
FIG. 1 is a schematic structural diagram of a formaldehyde adsorption device for paint and a use method thereof.
Fig. 2 is a schematic view of a top view structure of a spraying tank in a formaldehyde adsorption device for paint and a use method thereof.
Fig. 3 is an enlarged schematic structural view of a part a of a formaldehyde adsorption device for paint and a use method thereof.
In the figure: 1-coating bucket, 2-adsorption cover, 3-gas transmission hose, 4-large suction fan, 5-spray tank, 6-spray coil pipe, 7-liquid suction pipe, 8-liquid suction pump, 9-liquid storage tank, 10-discharge port, 11-gas outlet channel, 12-main gas inlet pipeline, 13-small suction fan, 14-main gas exhaust pipe, 15-first branch gas pipe, 16-second branch gas pipe, 17-first opening and closing valve body, 18-second opening and closing valve body, 19-filtration treatment tank, 20-left holding baffle, 21-right holding baffle and 22-active carbon adsorption block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, in an embodiment of the present invention, a formaldehyde adsorption device for paint and a method for using the same includes a paint bucket 1, and an adsorption cover 2 with a downward opening is fixed above the paint bucket 1 by a supporting function of a supporting frame.
One end of the gas hose 3 is communicated with the adsorption cover 2, the other end of the gas hose 3 is communicated with a gas inlet of the spray tank 5, a large-size exhaust fan 4 is arranged on the gas hose 3, the spray coil 6 is installed at the top of a tank cavity of the spray tank 5, a plurality of spray heads (not shown in the figure) are uniformly distributed on a circumferential pipe body on the spray coil 6, a discharge port 10 is arranged at the bottom end of the right side wall of the spray tank 5, a liquid suction pipe 7 is communicated with a liquid inlet of the spray coil 6, the other end of the liquid suction pipe 7 extends downwards into the bottom of an inner cavity of the liquid storage tank 9, a liquid suction pump 8 is further arranged on the pipe body of the liquid suction pipe 7, and a gas outlet channel 11 is arranged at the upper left corner of the spray tank 5.
The end part of the air outlet channel 11 is hermetically communicated with a main air inlet pipeline 12, a small-size air extracting fan 13 is arranged on the pipeline of the main air inlet pipeline 12, the other end of the main air inlet pipeline 12 is integrally communicated with a first branch air pipe 15 and a second branch air pipe 16, a first opening and closing valve body 17 is arranged at the right end pipe body position of the first branch air pipe 15, a second opening and closing valve body 18 is arranged at the right end pipe body position of the second branch air pipe 16, a filtering treatment box 19 is arranged at the left end pipe body position of the first branch air pipe 15 and the second branch air pipe 16, a left accommodating baffle plate 20 and a right accommodating baffle plate 21 are vertically arranged between the upper side wall and the lower side wall of the box body of the filtering treatment box 19, a plurality of air guide through holes are uniformly formed in the plate bodies of the left accommodating baffle plate 20 and the right accommodating baffle plate 21, and an insertion through hole is formed in the top positions of the upper side wall of the filtering treatment box 19, the activated carbon adsorption block 22 is placed into a cavity between the left containing baffle 20 and the right containing baffle 21 from the insertion through hole, a drawing handle 23 is installed at the top end of a block body of the activated carbon adsorption block 22, the left ends of the first branch air pipe 15 and the second branch air pipe 16 are converged and communicated on the main exhaust air pipe 14, and the pipe body of the main exhaust air pipe 13 is also provided with a small-size suction fan 13.
A formaldehyde adsorption device for paint and a using method thereof are carried out according to the following steps:
the method comprises the following steps: pumping in released formaldehyde: the large-size air suction fan 4 is started, formaldehyde generated in the coating bucket 1 can be directly adsorbed into the adsorption cover 2, and released formaldehyde is absorbed.
Step two: primary purification treatment of formaldehyde: along with the leading-in of gas hose 3 in spray tank 5, open drawing liquid pump 8, pump the scavenging solution in liquid reserve tank 9 to spray coil 6 along drawing liquid pipe 7, spray on formaldehyde gas under the injection effect of a plurality of shower nozzles (not marked in the figure), realize the primary purification purpose of fountain, purify and remove most formaldehyde gas.
Step three: secondary purification treatment of formaldehyde: the residual formaldehyde gas then enters the main gas inlet pipeline 12 from the gas outlet channel 11, and is purified by the control of two filtering treatment boxes 19 and two opening and closing valve bodies.
Step four: clean gas emission: the purified clean gas is exhausted from the main exhaust pipe 14 to the atmosphere under the pumping action of the small-size suction fan 13.
The working principle and the working process of the invention are as follows:
when the spraying type primary purification device works, a large-size air suction fan 4 and a small-size air suction fan 13 are started, formaldehyde generated in a coating barrel 1 can be directly adsorbed into an adsorption cover 2, then the formaldehyde is guided into a spraying tank 5 along a gas conveying hose 3, a liquid suction pump 8 is started, a purification liquid in a liquid storage tank 9 is pumped to a spraying coil pipe 6 along a liquid suction guide pipe 7, then the purification liquid is sprayed on formaldehyde gas under the spraying action of a plurality of spray heads (not shown in the figure), the spraying type primary purification purpose is realized, most of formaldehyde gas is purified, the rest formaldehyde gas enters a main gas inlet pipeline 12 from a gas outlet channel 11, then the traditional single-layer filtering structure is improved into a mode of two filtering treatment tanks 19 and two opening and closing valve bodies, when the whole gas is introduced into the main gas inlet pipeline 12 in actual use, if a first opening and closing valve body 17 and a second opening and closing valve body 18 are opened simultaneously, the flowing gas can be divided and simultaneously guided into the first branch gas pipe 15 and the second branch gas pipe 16, and enters the upper and lower two filtering treatment boxes 19 for gas and dust adsorption operation, the purification effect of the activated carbon adsorption layer is good, a large amount of gas can be treated by the two branch pipes in a dispersing way, the purification effect is sufficient, meanwhile, because the activated carbon adsorption block 11 can be taken out and placed between the left containing baffle 20 and the right containing baffle 21, when one of the activated carbon adsorption layer or the box is damaged, a worker can close the first opening and closing valve body 17 and open the second opening and closing valve body 18 at the moment, the treatment box maintenance work on the first branch gas pipe 15 is independently carried out, the gas at the moment can be completely guided into the second branch gas pipe 16 for purification treatment in the filtering treatment box 7 below, no influence is caused, and the defect that the traditional single filtering structure needs to be maintained and stopped once damaged is well solved, the gas can be continuously and uninterruptedly purified, the treatment effect is excellent, and the adaptability is high.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. A formaldehyde adsorption device for paint and a using method thereof comprise a paint barrel (1), and are characterized in that an adsorption cover (2) with a downward opening is fixed right above the paint barrel (1) through the supporting effect of a support frame, one end of an air hose (3) is communicated with the adsorption cover (2), the other end of the air hose (3) is communicated with an air inlet of a spraying tank (5), a large-size air suction fan (4) is arranged on the air hose (3), a spraying coil pipe (6) is installed at the top of a tank cavity of the spraying tank (5), a plurality of spray heads (not marked in the drawing) are uniformly distributed on a circumferential pipe body on the spraying coil pipe (6), a liquid suction pipe (7) is communicated with a liquid inlet of the spraying coil pipe (6), the other end of the liquid suction pipe (7) extends downwards into the bottom of an inner cavity of a liquid storage tank (9), and a liquid suction pump (8) is further arranged on the pipe body of the liquid suction pipe (7), the spraying tank (5) is provided with an air outlet channel (11) at the upper left corner, the end of the air outlet channel (11) is communicated with a main air inlet pipeline (12) in a sealing way, a small suction fan (13) is arranged on the pipeline of the main air inlet pipeline (12), the other end of the main air inlet pipeline (12) is integrally communicated with a first branch air pipe (15) and a second branch air pipe (16), a first opening and closing valve body (17) is arranged at the right end pipe body position of the first branch air pipe (15), a second opening and closing valve body (18) is arranged at the right end pipe body position of the second branch air pipe (16), a filtering treatment box (19) is arranged at the left end pipe body position of each of the first branch air pipe (15) and the second branch air pipe (16), a left accommodating baffle (20) and a right accommodating baffle (21) are vertically arranged between the upper side wall and the lower side wall of the filtering treatment box (19), the board body top position department of the last lateral wall of filtration processing case (19), left holding baffle (20) and right holding baffle (21) has seted up one and has inserted the through-hole, and activated carbon adsorption piece (22) are from inserting in the through-hole put into the cavity between left holding baffle (20) and right holding baffle (21), pull handle (23) are installed on the block top of activated carbon adsorption piece (22).
2. The formaldehyde adsorption device for paint as claimed in claim 1, wherein the right side wall of the spray tank (5) has a discharge port (10) at the bottom end thereof.
3. The formaldehyde adsorption device for paint as claimed in claim 1, wherein the left and right receiving baffles 20 and 21 are provided with a plurality of air guiding holes.
4. The formaldehyde adsorption device for the coating according to claim 1, wherein the left ends of the first branch air pipe (15) and the second branch air pipe (16) are converged and communicated with the main exhaust air pipe (14). .
5. The formaldehyde adsorption device for paint as claimed in claim 1, wherein the main exhaust pipe (13) is also provided with a small-sized suction fan (13).
6. A formaldehyde adsorption device for paint and a using method thereof are carried out according to the following steps:
the method comprises the following steps: pumping in released formaldehyde: the large-size air suction fan (4) is started, formaldehyde generated in the coating bucket (1) can be directly adsorbed into the adsorption cover (2), and released formaldehyde is absorbed.
Step two: primary purification treatment of formaldehyde: the formaldehyde gas is introduced into a spraying tank (5) along a gas hose (3), a liquid pump (8) is opened, the purifying liquid in a liquid storage tank (9) is pumped to a spraying coil pipe (6) along a liquid pumping guide pipe (7), and then the purifying liquid is sprayed on the formaldehyde gas under the spraying action of a plurality of spray heads (not shown in the figure), so that the spraying type primary purification purpose is realized, and most of the formaldehyde gas is purified.
Step three: secondary purification treatment of formaldehyde: the residual formaldehyde gas then enters the main gas inlet pipeline (12) from the gas outlet channel (11), and is purified by utilizing the control of two filtering treatment boxes (19) and two opening and closing valve bodies.
Step four: clean gas emission: and under the pumping action of the small-size suction fan (13), the purified clean gas is discharged into the atmosphere from the main exhaust gas pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911170844.XA CN110813031A (en) | 2019-11-26 | 2019-11-26 | Formaldehyde adsorption device for coating and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911170844.XA CN110813031A (en) | 2019-11-26 | 2019-11-26 | Formaldehyde adsorption device for coating and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110813031A true CN110813031A (en) | 2020-02-21 |
Family
ID=69559616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911170844.XA Pending CN110813031A (en) | 2019-11-26 | 2019-11-26 | Formaldehyde adsorption device for coating and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110813031A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724600A (en) * | 2005-07-21 | 2006-01-25 | 山东科技大学 | First of latex paint capable of absorbing formaldehyde |
| US20120234165A1 (en) * | 2011-03-17 | 2012-09-20 | Uop Llc | Methods for controlling impurity buildup on adsorbent for pressure swing adsorption processes |
| US20130343973A1 (en) * | 2012-06-25 | 2013-12-26 | Multisorb Technologies, Inc. | Absorbent for optics and electrical components |
| CN203710882U (en) * | 2014-02-27 | 2014-07-16 | 邢台市大曹庄管理区康丰化工有限公司 | Collecting and purifying device for waste gases during production of density board |
| CN107008634A (en) * | 2017-05-18 | 2017-08-04 | 东莞市旭通达模具塑胶有限公司 | The water paint coating process and coating of a kind of television receiver plastic casing |
| CN206463707U (en) * | 2017-01-10 | 2017-09-05 | 广州昭宁化工有限公司 | A kind of continuous replaceable chemical factory noxious fume adsorption cleaning system |
| CN207913470U (en) * | 2018-01-05 | 2018-09-28 | 汇康荧光科技（清远）有限公司 | Pigment production waste gas treatment equipment |
-
2019
- 2019-11-26 CN CN201911170844.XA patent/CN110813031A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724600A (en) * | 2005-07-21 | 2006-01-25 | 山东科技大学 | First of latex paint capable of absorbing formaldehyde |
| US20120234165A1 (en) * | 2011-03-17 | 2012-09-20 | Uop Llc | Methods for controlling impurity buildup on adsorbent for pressure swing adsorption processes |
| US20130343973A1 (en) * | 2012-06-25 | 2013-12-26 | Multisorb Technologies, Inc. | Absorbent for optics and electrical components |
| CN203710882U (en) * | 2014-02-27 | 2014-07-16 | 邢台市大曹庄管理区康丰化工有限公司 | Collecting and purifying device for waste gases during production of density board |
| CN206463707U (en) * | 2017-01-10 | 2017-09-05 | 广州昭宁化工有限公司 | A kind of continuous replaceable chemical factory noxious fume adsorption cleaning system |
| CN107008634A (en) * | 2017-05-18 | 2017-08-04 | 东莞市旭通达模具塑胶有限公司 | The water paint coating process and coating of a kind of television receiver plastic casing |
| CN207913470U (en) * | 2018-01-05 | 2018-09-28 | 汇康荧光科技（清远）有限公司 | Pigment production waste gas treatment equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210434281U (en) | Environmental protection adsorbs formula industrial waste gas processing apparatus | |
| CN110813031A (en) | Formaldehyde adsorption device for coating and use method thereof | |
| CN216964056U (en) | Gas purification device for anesthesia department | |
| CN214159057U (en) | Air purification device based on energy-saving and environment-friendly technology | |
| CN206094323U (en) | Novel air purifier | |
| CN210845866U (en) | Waste gas treatment device containing volatile organic compounds | |
| CN210021579U (en) | Lead fume purification device | |
| CN109316875A (en) | A kind of technique and spraying box handling coating cloud | |
| CN210646974U (en) | Copper handicraft spray booth | |
| CN208809722U (en) | A kind of prepreg production raw material spray equipment | |
| CN208482195U (en) | A kind of interior decoration cleaner | |
| CN111895544A (en) | Can clear away indoor waste gas treatment device of formaldehyde | |
| CN207628178U (en) | A kind of waste gas filter | |
| CN220802582U (en) | Waste gas treatment device for phosphate fertilizer processing | |
| CN211302666U (en) | Spraying exhaust treatment device | |
| CN217961914U (en) | Rubber processing flue gas exhaust apparatus | |
| CN214158965U (en) | Washing air purification device | |
| CN210786769U (en) | Waste gas treatment device | |
| CN210729112U (en) | Paint room exhaust treatment device | |
| CN109140617A (en) | A kind of clean operating room low noise air supply device | |
| CN217511571U (en) | High-efficient circulated formula deodorization biofiltration device | |
| CN110152432A (en) | Intelligent moxibustion therapeutic equipment with cleaning treatment system | |
| CN213912935U (en) | Suspended matter intercepting and adsorbing device for machining workshop | |
| CN220047706U (en) | Energy-saving environment-friendly carbon neutralization purification treatment device | |
| CN212417269U (en) | Remove peculiar smell processing apparatus for formaldehyde |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200221 |
|
| WD01 | Invention patent application deemed withdrawn after publication |