CN109966898A - A kind of exhaust gas treatment method and device - Google Patents
A kind of exhaust gas treatment method and device Download PDFInfo
- Publication number
- CN109966898A CN109966898A CN201910371968.8A CN201910371968A CN109966898A CN 109966898 A CN109966898 A CN 109966898A CN 201910371968 A CN201910371968 A CN 201910371968A CN 109966898 A CN109966898 A CN 109966898A
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- China
- Prior art keywords
- exhaust gas
- gas
- spray
- gas treatment
- delivery pipe
- 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
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 113
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000007921 spray Substances 0.000 claims abstract description 52
- 239000000428 dust Substances 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000002912 waste gas Substances 0.000 claims abstract description 10
- 239000011324 bead Substances 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 238000006386 neutralization reaction Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 239000003500 flue dust Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 5
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 claims 1
- 239000008187 granular material Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- -1 amine salt Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of exhaust gas treatment method, belong to technical field of environment protection equipment, main the technical issues of being to solve cold-box core blower exhaust emission environment, it is as follows that the method comprising the steps of, S1, to the heating by the exhaust gases of collection to set temperature；S2, it exhaust gas is delivered to dedusting mechanism is dusted to obtain dustless exhaust gas；S3, dustless exhaust gas is delivered to spray column carry out except Triethylamine gas to clean gas.The invention also discloses a kind of waste gas treatment devices for realizing the above method.The present invention can effectively remove dust granule and Triethylamine gas in exhaust gas.
Description
Technical field
The present invention relates to technical field of environment protection equipment, more specifically, it relates to a kind of exhaust gas treatment method and device.
Background technique
Cold-box core blower can generate exhaust gas in production, include the substances such as Triethylamine gas, dust granule in exhaust gas, give up
Gas can generate serious pollution to atmosphere, influence greatly on the operating environment of production scene, to realize blue sky atmosphere defended war triumph,
Enterprise employee health safety is protected, needs to administer exhaust gas, eliminates air pollution.
Traditional method is to collect exhaust gas using dust hood, and exhaust gas is discharged into atmosphere after simple dust-extraction unit,
It is even directly discharged in atmosphere by pipeline, causes environmental pollution, while the injury that employee is also secondarily contaminated, the person of influence
The health of work.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the prior art above-mentioned deficiency, the purpose of the present invention one there is provided
A kind of exhaust gas treatment method that can effectively remove dust granule and Triethylamine gas in exhaust gas.
There is provided the useless of a kind of dust granule that can effectively remove in exhaust gas and Triethylamine gas for the purpose of the present invention two
Gas controlling device.
To achieve the goals above one, the present invention provides a kind of exhaust gas treatment method, and it is as follows that the method comprising the steps of,
S1, to the heating by the exhaust gases of collection to set temperature；
S2, it exhaust gas is delivered to dedusting mechanism is dusted to obtain dustless exhaust gas；
S3, dustless exhaust gas is delivered to spray column carry out except Triethylamine gas to clean gas.
As a further improvement, first reducing the gas velocity of exhaust gas before being dusted in the step S2.
Further, in the step S3, the substance chemically reacted with Triethylamine gas is sprayed to remove in exhaust gas
Triethylamine gas.
To achieve the goals above two, the present invention provides a kind of waste gas treatment device, including is sequentially connected by delivery pipe
Gas collection mechanism, dedusting mechanism, spray column, blower, delivery pipe between the gas collection mechanism and dedusting mechanism is equipped with heating
Component, the spray column is interior to be equipped with the spaced apart spray assemblies of at least two-stage or more, and the top of each spray assemblies is equal
Equipped with the first filter layer, the spray tower bottom is equipped with neutralization pond, and the spray column side, which is equipped with, is connected to the neutralization pond
Liquid storage tank, the circulation pipe for being equipped with circulating pump and connecting the circulating pump with spray assemblies above the liquid storage tank, institute
PH value sensor is equipped in the neutralization pond stated.
As a further improvement, the dedusting mechanism includes dust cleaning case, it is equipped in the dust cleaning case and is removed by described in
Dirt box cavity is separated into the second filter layer of epicoele, cavity of resorption, and the cavity of resorption connects the gas collection mechanism by the delivery pipe,
The epicoele connects the spray column by the delivery pipe, and the dust cleaning case bottom is equipped with flue-dust retainer, the collection ash
Bottom struggle against equipped with deashing window.
Further, second filter layer is equipped with vibrator.
Further, the spray assemblies include the spray of the spray head and each spray head of connection of multiple horizontal homogeneous arrangements
Pipe.
Further, first filter layer include filter bead, positioned at it is described filtering bead bottom bottom plate, be located at
Pressure network at the top of the filtering bead, the bottom plate are equipped with the via hole that diameter is less than the diameter of the filtering bead.
Further, air inlet pipe is equipped between the gas collection mechanism and delivery pipe, between the air inlet pipe and delivery pipe
Angle be 20 °~40 °.
Further, the junction of the air inlet pipe and delivery pipe is equipped with arc elbow, and the wall thickness of the arc elbow is big
In the wall thickness of the air inlet pipe.
Beneficial effect
Compared with prior art, the present invention having the advantage that are as follows:
1, the present invention first passes through the dust in dedusting mechanism removing exhaust gas, then passes through the triethylamine in spray column removing exhaust gas
Gas, the dust granule and Triethylamine gas that can effectively remove in exhaust gas obtain clean gas, exhaust gas are avoided to cause environmental pollution,
Avoid the injury that employee is secondarily contaminated and the health for influencing employee.
2, the present invention is by can be improved the circulation of dust in exhaust gas, preventing dust to heating by the exhaust gases to set temperature
It saves bit by bit in delivery pipe.
3, the present invention can automatically be trembled the dust on the second filter layer by the way that vibrator is arranged on the second filter layer
It falls, guarantees the mistake tolerance of the second filter layer.
4, the angle in the present invention between air inlet pipe and delivery pipe is 20 °~40 °, and between air inlet pipe and delivery pipe
Arc elbow is set, it is possible to reduce the resistance of gas flowing improves gas collection effect, and the wall thickness of arc elbow is greater than the wall of air inlet pipe
Thickness guarantees that arc elbow is not easy to gall under the impact of exhaust gas dust.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Wherein: 1- delivery pipe, 2- gas collection mechanism, 3- dedusting mechanism, 4- spray column, 5- blower, 6- heating component, 7- spray
Component, the first filter layer of 8-, 9- neutralization pond, 10- liquid storage tank, 11- circulating pump, 12- circulation pipe, 13- controller, 14- epicoele,
15- cavity of resorption, the second filter layer of 16-, 17- flue-dust retainer, 18- vibrator, 19- air inlet pipe, 20- arc elbow.
Specific embodiment
The present invention is described further for specific embodiment in reference to the accompanying drawing.
Refering to fig. 1, a kind of exhaust gas treatment method, it is as follows that the method comprising the steps of,
S1, to the heating by the exhaust gases of collection to set temperature, the circulation of dust in exhaust gas can be improved, prevent dust from saving bit by bit
In delivery pipe, set temperature is greater than 60 DEG C, and the occurrence of certain set temperature may be set according to actual conditions；
S2, it exhaust gas is delivered to dedusting mechanism 3 is dusted to obtain dustless exhaust gas；
S3, dustless exhaust gas is delivered to spray column 4 carry out except Triethylamine gas to clean gas.
In step s 2, the gas velocity of exhaust gas is reduced, first before being dusted to improve dust removing effects.In step S3
In, spray removes the Triethylamine gas in exhaust gas with the substance that Triethylamine gas chemically reacts, and the substance of spray can be
Phosphoric acid solution or other acid solutions, make Triethylamine gas be converted to the amine salt of phosphate amine salt or other types, can remove useless
Triethylamine gas in gas is simultaneously recycled amine.
A kind of waste gas treatment device, including pass through the sequentially connected gas collection mechanism 2 of delivery pipe 1, dedusting mechanism 3, spray column
4, blower 5, blower 5 provide the power of conveying exhaust gas to whole device, and final clean air is discharged in atmosphere by blower 5.Collection
Mechanism of qi structure 2 is the bell-mouth structure of air that upper end is small, lower end is big, and the delivery pipe 1 between gas collection mechanism 2 and dedusting mechanism 3, which is equipped with, to be added
Hot component 6, heating component 6 preheat exhaust gas close to gas collection mechanism 2, heating component 6, and the stream of dust in exhaust gas can be improved
The general character prevents dust from saving bit by bit in delivery pipe, and heating component 6 includes heater wire and temperature sensor.
In the present embodiment, dedusting mechanism 3 includes dust cleaning case, is equipped in dust cleaning case dedusting box cavity being separated into epicoele
14, the second filter layer 16 of cavity of resorption 15, bracket of second filter layer 16 mainly by strainer and for installing strainer are constituted, the second mistake
Filtering layer 16 is in tilted layout, and can increase the filter area of the second filter layer 16, and cavity of resorption 15 connects gas collection mechanism 2 by delivery pipe 1,
Epicoele 14 connects spray column 4 by delivery pipe 1, and since the accommodation space of dust cleaning case is big, the exhaust gas in delivery pipe 1 reaches dust cleaning case
Volume becomes larger afterwards, and gas velocity and temperature can decline, and is conducive to filter dust.Second filter layer 16 is equipped with vibrator 18, can
Automatically to shake off the dust on the second filter layer 16, guarantee the mistake tolerance of the second filter layer 16.Dust cleaning case bottom is equipped with collection ash
Bucket 17, flue-dust retainer 17 are the structure that upper end is big, lower end is small, and 17 bottom of flue-dust retainer is equipped with deashing window, for periodically handling flue-dust retainer
Dust in 17.
In the present embodiment, the spaced apart spray assemblies 7 of at least two-stage or more, each spray assemblies 7 are equipped in spray column 4
Top be equipped with the first filter layer 8,4 bottom of spray column is equipped with neutralization pond 9, and 4 side of spray column is equipped with the storage of connection neutralization pond 9
There is neutralizer in liquid pool 10, neutralization pond 9 and liquid storage tank 10, neutralizer is phosphoric acid solution or other acid solutions, on liquid storage tank 10
The circulation pipe 12 that side is equipped with circulating pump 11 and connect circulating pump 11 with spray assemblies 7, the interior pH value that is equipped with of neutralization pond 9 sense
Device issues alarm when pH value is not in default PH range for the pH value in real-time detection neutralization pond 9.Spray assemblies 7 include more
The spray head of a horizontal homogeneous arrangement and the jet pipe of each spray head of connection, jet pipe connect circulation pipe 12, and head of the nozzle is equipped with multiple micro-
Aperture, neutralizer form water mist by micro hole under the effect of circulating pump 11 and spray, and make the Triethylamine gas and water mist in exhaust gas
It comes into full contact with and reacts and be removed.First filter layer 8 include filtering bead, positioned at filtering bead bottom bottom plate, be located at
The pressure network at the top of bead is filtered, bottom plate is equipped with the via hole that diameter is less than the diameter of filtering bead, and the first filter layer 8 can will give up
Gas appearance water is separated.Spray assemblies 7, the first filter layer 8 and circulation pipe 12 are made of anticorrosive material, if spray head is by plastics
It is made, jet pipe is made of stainless steel, and circulation pipe 12 is made of PVC material, and filter bead, bottom plate, pressure network are made of plastics.
In the present embodiment, air inlet pipe 19 is equipped between gas collection mechanism 2 and delivery pipe 1, between air inlet pipe 19 and delivery pipe 1
Angle be 20 °~40 °, the junction of air inlet pipe 19 and delivery pipe 1 is equipped with arc elbow 20, it is possible to reduce the resistance of gas flowing
Power improves gas collection effect, and the wall thickness of arc elbow 20 is greater than the wall thickness of air inlet pipe 19, guarantees arc elbow rushing in exhaust gas dust
It hits down and is not easy to gall, delivery pipe 1, air inlet pipe 19, arc elbow 20 and 4 main body of spray column are made of corrosion resistant glass reinforced plastic.
In the present embodiment, device further includes controller 13, controller 13 be electrically connected heating component 6, blower 5,
Circulating pump 11, pH value sensor, controller 13 can be the PLC controller of model S7-200.
In other embodiments, the equalizer flow tube (not marking in figure) being connected to the delivery pipe 1 of air inlet is equipped in spray column 4,
Exhaust gas can be uniformly delivered to 4 lower part of spray column by equalizer flow tube, so that the exhaust gas in spray column 4 is evenly distributed, Ke Yiti
Height removes the effect of Triethylamine gas.
The present invention first passes through the dust in dedusting mechanism removing exhaust gas, then passes through the triethylamine gas in spray column removing exhaust gas
Body, the dust granule and Triethylamine gas that can effectively remove in exhaust gas obtain clean gas, avoid exhaust gas from causing environmental pollution, keep away
Exempt from the injury that employee is secondarily contaminated and the health for influencing employee.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, is not taking off
Under the premise of from structure of the invention, several modifications and improvements can also be made, these all will not influence the effect that the present invention is implemented
And patent practicability.
Claims (10)
1. a kind of exhaust gas treatment method, it is characterised in that: it is as follows that the method comprising the steps of,
S1, to the heating by the exhaust gases of collection to set temperature；
S2, it exhaust gas is delivered to dedusting mechanism (3) is dusted to obtain dustless exhaust gas；
S3, dustless exhaust gas is delivered to spray column (4) carry out except Triethylamine gas to clean gas.
2. a kind of exhaust gas treatment method according to claim 1, it is characterised in that: in the step S2, removed
The gas velocity of exhaust gas is first reduced before dirt.
3. a kind of exhaust gas treatment method according to claim 1, it is characterised in that: in the step S3, spray and three
The substance that ethamine gas chemically reacts removes the Triethylamine gas in exhaust gas.
4. a kind of waste gas treatment device, it is characterised in that: including passing through delivery pipe (1) sequentially connected gas collection mechanism (2), dedusting
Mechanism (3), spray column (4), blower (5), the delivery pipe (1) between the gas collection mechanism (2) and dedusting mechanism (3), which is equipped with, to be added
Hot component (6), the spray column (4) is interior to be equipped with the spaced apart spray assemblies (7) of at least two-stage or more, each spray group
It is equipped with above part (7) the first filter layer (8), the spray column (4) bottom is equipped with neutralization pond (9), the spray column
(4) side is equipped with the liquid storage tank (10) for being connected to the neutralization pond (9), be equipped with above the liquid storage tank (10) circulating pump (11),
And the circulation pipe (12) for connecting the circulating pump (11) with spray assemblies (7), the interior pH value that is equipped with of the neutralization pond (9) pass
Sensor.
5. a kind of waste gas treatment device according to claim 4, it is characterised in that: the dedusting mechanism (3) includes removing
Dirt case, the dust cleaning case is interior to be equipped with the second filter layer that the dedusting box cavity is separated into epicoele (14), cavity of resorption (15)
(16), the cavity of resorption (15) connects the gas collection mechanism (2) by the delivery pipe (1), and the epicoele (14) passes through institute
It states delivery pipe (1) and connects the spray column (4), the dust cleaning case bottom is equipped with flue-dust retainer (17), the flue-dust retainer (17)
Bottom is equipped with deashing window.
6. a kind of waste gas treatment device according to claim 5, it is characterised in that: set on second filter layer (16)
There are vibrator (18).
7. a kind of waste gas treatment device according to claim 4, it is characterised in that: the spray assemblies (7) include more
The spray head of a horizontal homogeneous arrangement and the jet pipe of each spray head of connection.
8. a kind of waste gas treatment device according to claim 4, it is characterised in that: first filter layer (8) includes
Bead, the bottom plate positioned at the filtering bead bottom, the pressure network at the top of the filtering bead are filtered, is set on the bottom plate
There is diameter to be less than the via hole of the diameter of the filtering bead.
9. a kind of waste gas treatment device according to claim 4, it is characterised in that: the gas collection mechanism (2) and conveying
It manages and is equipped with air inlet pipe (19) between (1), the angle between the air inlet pipe (19) and delivery pipe (1) is 20 °~40 °.
10. a kind of waste gas treatment device according to claim 9, it is characterised in that: the air inlet pipe (19) and delivery pipe
(1) junction is equipped with arc elbow (20), and the wall thickness of the arc elbow (20) is greater than the wall thickness of the air inlet pipe (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371968.8A CN109966898A (en) | 2019-05-06 | 2019-05-06 | A kind of exhaust gas treatment method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371968.8A CN109966898A (en) | 2019-05-06 | 2019-05-06 | A kind of exhaust gas treatment method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109966898A true CN109966898A (en) | 2019-07-05 |
Family
ID=67072945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910371968.8A Pending CN109966898A (en) | 2019-05-06 | 2019-05-06 | A kind of exhaust gas treatment method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109966898A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277576A (en) * | 2021-05-14 | 2021-08-20 | 方志 | Particle micro-vibration type filter layer based on PP material |
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| CN205699984U (en) * | 2016-05-06 | 2016-11-23 | 广州市妆泽生物科技有限公司 | A kind of orientation dust removal machine |
| CN106540500A (en) * | 2015-09-17 | 2017-03-29 | 哈尔滨市金京锅炉有限公司 | A kind of boiler waste gas treating device |
| CN209885567U (en) * | 2019-05-06 | 2020-01-03 | 广西玉柴机器股份有限公司 | Waste gas treatment device |
-
2019
- 2019-05-06 CN CN201910371968.8A patent/CN109966898A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001029737A (en) * | 1999-07-26 | 2001-02-06 | Takuma Co Ltd | Deodorizing system for gas to be treated and method for deodorizing gas to be treated |
| CN102564103A (en) * | 2012-01-18 | 2012-07-11 | 新乡市鼎鑫机械有限公司 | Novel exhaust system |
| CN204469484U (en) * | 2015-02-09 | 2015-07-15 | 佳木斯大学 | A kind of chemical experiment waste gas filter |
| CN106540500A (en) * | 2015-09-17 | 2017-03-29 | 哈尔滨市金京锅炉有限公司 | A kind of boiler waste gas treating device |
| CN205699984U (en) * | 2016-05-06 | 2016-11-23 | 广州市妆泽生物科技有限公司 | A kind of orientation dust removal machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277576A (en) * | 2021-05-14 | 2021-08-20 | 方志 | Particle micro-vibration type filter layer based on PP material |
| CN113277576B (en) * | 2021-05-14 | 2022-08-26 | 广州市艾瑞空气净化设备有限公司 | Particle micro-vibration type filter layer based on PP material |
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| PB01 | Publication | ||
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Application publication date: 20190705 |