CN104958987B - Dust filtering device with two groups of cleaning wheels - Google Patents
Dust filtering device with two groups of cleaning wheels Download PDFInfo
- Publication number
- CN104958987B CN104958987B CN201510390134.3A CN201510390134A CN104958987B CN 104958987 B CN104958987 B CN 104958987B CN 201510390134 A CN201510390134 A CN 201510390134A CN 104958987 B CN104958987 B CN 104958987B
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- China
- Prior art keywords
- filter screen
- lower roller
- roll shaft
- dust
- roller shaft
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- Expired - Fee Related
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- Filtering Of Dispersed Particles In Gases (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
It with the dust filtering device of two groups of cleaning wheels, is mainly made up of air intake and exhaust system, dust filtering device, filtering trough, gap, cistern, water circulating pump, flow pipe, air cleaning unit.The present invention is provided with dual self-cleaning device, and one is heavily in the dust filtering device in filtering trough, for being cleaned screen surface；Spray header in one space being heavily in roll shaft, lower roller shaft and filter screen composition, upper cleaning wheel and lower cleaning wheel, for being carried out to upper roll shaft, lower roller shaft and its interior.
Description
Technical field
The present invention relates to a kind of two groups of band cleaning for the dust in air filtering excessively or oil smoke with dual self-cleaning device
The dust filtering device of wheel, belongs to air filtration technology.
Background technology
As a example by paint locker, operationally, substantial amounts of dust and pernicious gas can be produced, these nuisances not only shadow
Ring the healthy of operating personnel, and the processing to product causes damage.So, paint locker all can use exhausting
Equipment and dust-filtering equipment, as gathered the Water curtain machine of filtration and exhausting function.The design of Water curtain machine is typically at machine
The middle part of cabinet arranges one baffle plate, and water flows to baffle surface and flows through one cascade of formation from top, and side is arranged under the baffle
One filtering trough, is provided with gap between filtering trough and baffle plate, in order to air is between baffle plate and filtering trough
Gap flows to air blast, and the dust in air is encountered cascade and will be adsorbed with water in inflow filtering trough, this design
Benefit is that parts are installed concentratedly, is moved easily use, between deficiency air can only pass through between baffle plate and filtering trough
Clearance flow mistake, because the route of shortest path only can be selected during air flowing, so, on the top of cascade, the stream of air
Dynamic property is just poor, and dust removing effects is less desirable.
Also having a kind of dedusting method, whole paint spray booth floor uses metallic grid, and exhaust apparatus is from the sky of grid and ground
Gap carries out suction and discharge, and the advantage of this design is to accelerate tenesmus when dust drops, and dust is drained, to play purification
Effect.But, this structure is not suitable for using in a lot of occasions.
As a example by kitchen, a large amount of oil smoke during cooking, can be produced, by smoke exhaust ventilator by outside oil smoke discharge chamber, such set
Although meter solves the oil smoke problem of indoor, but can produce severe contamination to flue and surrounding environment, so, also have one
Partly kitchen has installed oil removing and electrostatic precipitator additional, but such configuration exists the hidden danger of high pressure leakage fire.
Now with a kind of air filtration cooling system for factory building, outdoor air intake filter and blow into after lowering the temperature
In room, advantage is that energy consumption is low, and deficiency is that filter screen maintains static, and uses the time one long, and filter screen is easily blocked, clearly
Wash difficult in maintenance.
It is, thus, sought for one can not only effectively dedusting, smoke abatement, moreover it is possible to effectively reduce to environment simultaneously
The air filter unit that can be automatically cleaned.
Content of the invention
It is an object of the invention to provide one can not only effectively dedusting, smoke abatement, moreover it is possible to effectively reduces and makes environment
Become the air filter unit polluting and can being automatically cleaned.
The technical scheme is that the dust filtering device with two groups of cleaning wheels, described dust filtering device
2 tops being placed in filtering trough 3, including the 23rd, upper roll shaft the 21st, lower roller shaft the 22nd, power set are enclosed within roller
Filter screen 24 on axle and lower roller shaft, and the powder dust remover 25 being positioned in filtering trough 3, at filter screen 24
And it is provided with cleaning wheel 26 on a group between upper roll shaft 21 and clean filter screen and upper roll shaft, at filter screen 24 and lower roller shaft
It is provided with cleaning wheel 27 under a group between 22 and clean filter screen and lower roller shaft；Upper cleaning wheel 26 and lower cleaning wheel 27, by
Power set 23 drive and rotate；Described filter screen joins end to end and forms annular；It is provided with blowdown bottom filtering trough 3
Valve 31, dust and oil smoke are swept in water by powder dust remover 25 after being adsorbed by filter screen again, fixed after precipitation
Phase is drained by blowoff valve 31.
Described upper cleaning wheel 26 is taken turns with one for cleaning for the filter screen cleaning cleaning filter screen 24 by one
The upper roll shaft cleaning wheel composition of roll shaft 21；Described lower cleaning wheel 27 is clear by a filter screen being used for cleaning filter screen
Clean wheel forms for the lower roller shaft cleaning wheel cleaning lower roller shaft 22 with one；Described filter screen cleaning wheel is provided with hair
Brush, turning to of filter screen cleaning wheel is contrary with the direction of motion of filter screen；Described upper roll shaft cleaning wheel is provided with hairbrush,
Turning to of upper roll shaft cleaning wheel is identical with turning to of upper roll shaft；Described lower roller shaft cleaning wheel is provided with hairbrush, under
Turning to of roll shaft cleaning wheel is identical with turning to of lower roller shaft.
It is provided with more than one spray in the space of described upper roll shaft the 21st, lower roller shaft 22 and filter screen 24 composition
Water pipe 9.
Described spray header 9 is parallel with upper roll shaft 21.
Described lower roller shaft 22 uses hollow structure, the more than one through hole of surface configuration 221.
It is provided with support 222 in described lower roller shaft 22.
Beneficial effect:
1st, arranging spray header between upper roll shaft and lower roller shaft, the water smoke of spray header ejection has two effects, and one is
Absorbing into the dust in the air of filter screen, making dust drop down on lower roller shaft, two is the back of the body from filter screen
Face sprays, and washes away the dust on filter screen.
2nd, lower roller shaft is arranged to the structure of cavity surface band through hole, makes the dust falling enter inside lower roller shaft, lower roller shaft
Be immersed in the water of tank, lower roller shaft rotate when within dust under the souring of water from lower roller shaft both sides
Enter in tank.
3rd, be provided with between filter screen and upper roll shaft on one group cleaning wheel cleaning filter screen and on roll shaft, filter screen and lower roller shaft it
Between be provided with under one group cleaning wheel cleaning filter screen and lower roller shaft.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the A-A figure of Fig. 1.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the dust filtering device with two groups of cleaning wheels, mainly by air intake and exhaust system the 1st, dust
The 6th, flow pipe the 7th, the air cleaning of filter the 2nd, filtering trough the 3rd, gap the 4th, cistern the 5th, water circulating pump fills
Putting 8 compositions, the mode that air intake and exhaust system 1 is arranged in a matrix by the air blast 11 of more than 1 is arranged on dust-filtering
The rear of device 2.
Being provided with pedestal 51 below cistern 5, columns base is provided with draining valve 52；Described dust filtering device 2
Including parallel upper roll shaft the 21st, lower roller shaft 22 and power set 23, flow pipe 7 is positioned above dust filtering device 2,
Filtering trough 3 is positioned at below dust filtering device 2, is provided with blowoff valve 31 bottom filtering trough 3；In cistern 5
Water pumps into flow pipe 7 by water circulating pump 6, then sprays on filter screen 24 from the top of upper roll shaft 21, described powder
Dirt filter 2 also includes the banding filter screen 24 being driven rotation by power set 23, and described filter screen 24 joins end to end
Forming annular, one end is enclosed within roll shaft 21, and the other end is enclosed within lower roller shaft 22, and the bottom of lower roller shaft 23 is soaked
In water in filtering trough 3；Power set 23 drive lower roller shaft 22 to rotate, and drive filter when lower roller shaft 22 rotates
Net 24 and upper roll shaft 21 rotate；In the lower section of lower roller shaft 22, powder dust remover 25 is set；During work, suction and discharge
Device 1 inhales dynamic air flow filter screen, and the dust in air and oil smoke are adhered to by moist filter screen, and filter screen is at power set
It is moved downwardly into filtering trough 3 under the drive of 23, stick to the dust on filter screen and oil smoke by powder dust remover 2
It is washed in water.
Described powder dust remover 25 is made up of the more than one axle with hairbrush parallel with lower roller shaft 22, such as figure
Embodiment shown in 1 is made up of three axles with hairbrush, and the axle of these three band hairbrush is tight with filter screen 24 all respectively
Contact, so, power set 23 drive lower roller shaft 22 to be further driven to filter screen 24 when rotating and rotate, filter screen 24 turns
Dynamic driving powder dust remover 25 to rotate, the hairbrush on powder dust remover 25 surface is by clear for the dust on filter screen 24 surface
Brush in water.
It is provided with a cleaning rod, described cleaning rod and powder dust remover 25 below each powder dust remover 25
Surface contact；Described cleaning rod is the hard thing of strip, when the hairbrush on powder dust remover 25 turns to cleaning
Compressive deformation during rod surface, the dust in hairbrush is scraped in water by cleaning rod.
During work, air intake and exhaust system 1 inhales dynamic air flow filter screen, moist at most dust and oil smoke in air
Filter screen adhere to, filter screen is moved downwardly into filtering trough 3 under the drive of power set 23, sticks on filter screen
Dust and oil smoke are washed in water by powder dust remover 2.Little part air, under the suction of air intake and exhaust system 1 is dynamic, is worn
Crossing aperture intensive in outer screen and blowing to interior side screen, moist filter screen is inhaled the dust containing in air and oil smoke again
Attached fall some.Remaining dust and oil smoke in air, blow into air cleaning unit 8, quilt after being sucked by air blast 11
Air purifier 81 is discharged from exhaust outlet 82 after purifying.
Described filtering trough 3 is positioned at cistern, and the edge of filtering trough 3 is provided with gap 4, makes filtering trough
Water unnecessary in 3 overflows in cistern 5.Being provided with blowoff valve 31 bottom filtering trough 3, dust and oil smoke are inhaled by filter screen
It attached is swept in water by powder dust remover 25, regular after precipitation drained by blowoff valve 31 again.
Be provided with cleaning wheel 26 on a group between filter screen 24 and upper roll shaft 21, filter screen 24 and lower roller shaft 22 it
Between be provided with cleaning wheel 27 under a group.
Described upper cleaning wheel 26 is taken turns with one for cleaning for the filter screen cleaning cleaning filter screen 24 by one
The upper roll shaft cleaning wheel composition of roll shaft 21.
Described lower cleaning wheel 27 is taken turns with one for cleaning lower roll for the filter screen cleaning cleaning filter screen by one
The lower roller shaft cleaning wheel composition of axle 22.
Described filter screen cleaning wheel is provided with hairbrush, and turning to of filter screen cleaning wheel is contrary with the direction of motion of filter screen.
Described upper roll shaft cleaning wheel is provided with hairbrush, upper roll shaft cleaning wheel and upper roll shaft close-coupled, upper roll shaft
Turning to of cleaning wheel is identical with turning to of upper roll shaft, in both contact positions, the rotation side of hairbrush and upper roll shaft
To on the contrary, it becomes possible to remove the dirts such as the dust adhering on upper roll shaft, oil.
Described lower roller shaft cleaning wheel is provided with hairbrush, lower roller shaft cleaning wheel and lower roller shaft close-coupled, and lower roller shaft cleans
Turning to of wheel is identical with turning to of lower roller shaft, and at both contact positions, hairbrush is contrary with the rotation direction of lower roller shaft,
Just the dirts such as the dust adhering on lower roller shaft, oil can be removed.
Upper cleaning wheel 26 and lower cleaning wheel 27, driven rotation by power set 23.
Spray header 9 connects with flow pipe 7, is supplied water by water circulating pump 6 is unified.
Described spray header 9 is parallel with upper roll shaft 21, and this mode is easily installed fixing.Spray header 9 also may be used
Vertical with upper roll shaft and lower roller shaft to be arranged to, but this mounting means fixes relative difficulty.
Described lower roller shaft 22 uses hollow structure, the more than one through hole of surface configuration 221.
It is provided with support 222 in described lower roller shaft 22.Lower roller shaft is arranged to the structure of cavity surface band through hole, make from
The dust that drops down of top enters inside lower roller shaft, and lower roller shaft is immersed in the water of tank, when lower roller shaft rotates inside
Dust enter tank from lower roller shaft both sides under the souring of water.
Described powder dust remover 25 is made up of the more than one axle with hairbrush parallel with lower roller shaft 22, such as figure
Embodiment shown in 1 is made up of three axles with hairbrush, and the axle of these three band hairbrush is tight with filter screen 24 all respectively
Contact, so, will drive powder dust remover 25 to rotate during filter screen transhipment, thus hairbrush can be by filter screen 24
On dust clean with water in water.
Described filtering trough 3 is connected with cistern 5 by drainpipe 4, and the water in cistern 5 passes through water circulating pump 6
Pumping into flow pipe 7, flow pipe 7 is positioned at the part above roll shaft and is provided with intensive through hole down, downward during work
Spray strong water note, on spray to upper roll shaft 21 and filter screen 24, filter screen is washed away.Cistern 5 is used for precipitating
Dust, and supply water to water circulating pump 6.Mix dust, in water, enters cistern 5 from filtering trough 3 through drainpipe 4
In, through after a while, dust sinks to bottom cistern 5 under gravity, more regular by being located at the water channel at the bottom of pond
Discharge.
At the rear of air intake and exhaust system 1, air purifying room 8 is set.
It is mounted with air purifier 81 in described air purifying room 8, wall is provided with exhaust outlet 82.
During work, power set 23 drive upper roll shaft 21 and lower roller shaft 22 to rotate, and then band electric filter 24 turns
Dynamic, dust is attracted on filter screen 24 by air intake and exhaust system 1, and most dust adheres on the filter screen 24 of humidity,
Driven by filter screen 24 and move down, when filter screen 24 is through powder dust remover 25, owing to both are in close contact,
Forming bigger frictional force between the two, powder dust remover 25 also can rotate under the drive of filter screen 24, dust
The hairbrush removing device 25 surface brushes the dust on filter screen 24 in water, through swept filter screen 24 warp again
Cross water logging, under the effect of power set 23, laterally moved from the one of close air intake and exhaust system 1, through just
The a small amount of dust of face filter screen, after the water smoke being sprayed by spray header 9 purifies further, a small amount of dust of residual is again
Encountering the filter screen 24 being located behind, some dust is stuck again, and filter screen continues to move up, and turns over roller
It after axle 21, then is moved down in filtering trough 3, again by powder dust remover 25 after adhering to a large amount of dust
On hairbrush remove dust and being wetted, then move up under the effect of power set 23, so move in circles,
Constantly the air flowing through is purified, by the dust adhesion in air and take in water, make entrance air blast
Air comprises only a small amount of dust and pernicious gas.
Air containing a small amount of dust and pernicious gas is blown into air purifying room 8 by air blast, in air
Pernicious gas, after being purified by air purifier 81, then is discharged by exhaust outlet 82.
The present invention is provided with dual self-cleaning device, and one is heavily in the dust filtering device in filtering trough, and it is right to be used for
Screen surface is cleaned；One spray header being heavily in the space that roll shaft, lower roller shaft and filter screen form,
Upper cleaning wheel and lower cleaning wheel, for being carried out to upper roll shaft, lower roller shaft and its interior.
The present invention can be used on paint locker, arrange in the side of workbench can the filter screen 24 of scroll-up/down, at filter screen
Filtering trough 3 is set below 24, the air blast 11 arranged in arrays of the wall mounting at filter screen 24 rear,
Air purifying room 8 is set after wall, the paint of generation when spraying paint, dust, it becomes possible to inhaled by air blast 11 in time
On moist filter screen 24, then being cleaned by filtering trough 3, the air after filtering through filter screen 24 is blown again
Purify further to air purifying room 8.In like manner, present invention may also apply to carpentry yard, with the powder that will produce in time
Dirt is disposed, and can not only ensure the health of carpentry yard, additionally aids the healthy of holding operating personnel.
In like manner, present invention may also apply to other big workshops of dust.
If the dust content in air is required higher, can also be by the front of dust filtering device 2 again
One air intake and exhaust system 1 is set, or multiple parallel dust filtering device 2 is set to reach target.
Above-described embodiment is intended merely to the purposes of the interpretation present invention, and is not limitation of the present invention, this
The those of ordinary skill of technical field, in the essential scope of the present invention, makes a variety of changes or substitutes, and also should
Belong to the protection category of the present invention.
Claims (2)
1. the dust filtering device with two groups of cleaning wheels, described dust filtering device (2) is placed in filtering trough (3)
Top, including upper roll shaft (21), lower roller shaft (22), power set (23), be enclosed within roll shaft and lower roller shaft
On filter screen (24), and the powder dust remover (25) being positioned in filtering trough (3), it is characterised in that:
It is provided with more than one in the space that described upper roll shaft (21), lower roller shaft (22) and filter screen (24) form
Spray header (9)；Described lower roller shaft (22) uses hollow structure, the more than one through hole of surface configuration (221)；
It is provided with support (222) in described lower roller shaft (22)；Described filtering trough is by drainpipe with cistern even
Logical, the water in cistern pumps into flow pipe by water circulating pump, and flow pipe is positioned at the part above roll shaft and arranges
There is intensive through hole down, spray downwards water column during work, on spray to upper roll shaft and filter screen, filter screen is entered
Row washes away, and the air blast arranged in arrays of the wall mounting at filter screen rear (11) arranges air cleaning after wall
Room (8)；Spray header connects with flow pipe, is supplied water by water circulating pump is unified, spray header and upper roll shaft and under
Roll shaft is vertical.
2. the dust filtering device with two groups of cleaning wheels according to claim 1, it is characterised in that: described spray
Water pipe (9) is parallel with upper roll shaft (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510390134.3A CN104958987B (en) | 2011-10-21 | 2012-08-08 | Dust filtering device with two groups of cleaning wheels |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103248429 | 2011-10-21 | ||
| CN201110324842A CN102309904A (en) | 2011-10-21 | 2011-10-21 | Water curtain machine with filter screen flushing device |
| CN201510390134.3A CN104958987B (en) | 2011-10-21 | 2012-08-08 | Dust filtering device with two groups of cleaning wheels |
| CN201210279526.9A CN103055639B (en) | 2011-10-21 | 2012-08-08 | With the air cleaner of dual self-cleaning device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210279526.9A Division CN103055639B (en) | 2011-10-21 | 2012-08-08 | With the air cleaner of dual self-cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104958987A CN104958987A (en) | 2015-10-07 |
| CN104958987B true CN104958987B (en) | 2016-11-23 |
Family
ID=45423700
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110324842A Pending CN102309904A (en) | 2011-10-21 | 2011-10-21 | Water curtain machine with filter screen flushing device |
| CN201510390134.3A Expired - Fee Related CN104958987B (en) | 2011-10-21 | 2012-08-08 | Dust filtering device with two groups of cleaning wheels |
| CN201510388937.5A Pending CN105032092A (en) | 2011-10-21 | 2012-08-08 | Air filter |
| CN201210279526.9A Expired - Fee Related CN103055639B (en) | 2011-10-21 | 2012-08-08 | With the air cleaner of dual self-cleaning device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110324842A Pending CN102309904A (en) | 2011-10-21 | 2011-10-21 | Water curtain machine with filter screen flushing device |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510388937.5A Pending CN105032092A (en) | 2011-10-21 | 2012-08-08 | Air filter |
| CN201210279526.9A Expired - Fee Related CN103055639B (en) | 2011-10-21 | 2012-08-08 | With the air cleaner of dual self-cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN102309904A (en) |
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| CN102319533A (en) * | 2011-10-21 | 2012-01-18 | 赵建勋 | Water curtain machine with dust removing device |
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| CN103331070A (en) * | 2013-06-13 | 2013-10-02 | 张玉伟 | Cyclic wet filtration dust remover |
| CN103768883B (en) * | 2014-01-10 | 2017-01-04 | 汤国庆 | A kind of rinsing type air purifier |
| CN104162330B (en) * | 2014-08-06 | 2015-07-29 | 李洪彦 | Haze device falls in a kind of dedusting |
| CN104174240B (en) * | 2014-08-17 | 2016-08-24 | 吴维剑 | Water curtain style air cleaner |
| CN104923017B (en) * | 2015-06-05 | 2019-04-26 | 珠海格力电器股份有限公司 | The control method of gas treatment equipment and the device |
| CN105194957B (en) * | 2015-10-28 | 2016-11-30 | 上海源投环保科技有限公司 | A kind of circulated sprinkling grated plate type device for reducing dust |
| CN105498420A (en) * | 2015-11-27 | 2016-04-20 | 重庆金辰机械制造有限公司 | Metal debris multistage filtering equipment |
| CN105561718A (en) * | 2015-12-14 | 2016-05-11 | 重庆金辰机械制造有限公司 | Water mist type metal scrap filtering mechanism |
| CN105396397A (en) * | 2015-12-14 | 2016-03-16 | 重庆金辰机械制造有限公司 | Water-mist-type dedusting filtering device |
| CN105413358A (en) * | 2015-12-14 | 2016-03-23 | 重庆金辰机械制造有限公司 | Water mist type metal fragment filtering mechanism |
| CN105477964A (en) * | 2015-12-14 | 2016-04-13 | 重庆金辰机械制造有限公司 | Multistage spray type dust removal device |
| CN105664629A (en) * | 2015-12-31 | 2016-06-15 | 国电南京自动化股份有限公司 | Deep fog and dust removal apparatus |
| CN106390644A (en) * | 2016-11-03 | 2017-02-15 | 关云彪 | Guaranteeing apparatus for realizing ultralow discharge after standard reaching of fire coal flue gas |
| CN106552473A (en) * | 2016-12-01 | 2017-04-05 | 冯大兰 | A kind of filter |
| CN106390631A (en) * | 2016-12-01 | 2017-02-15 | 冯大兰 | Dust filter |
| CN106474831A (en) * | 2016-12-01 | 2017-03-08 | 冯大兰 | A kind of dust-filtering method |
| CN106731374A (en) * | 2016-12-01 | 2017-05-31 | 冯大兰 | A kind of air filtering method |
| CN106823565A (en) * | 2017-02-10 | 2017-06-13 | 宜宾丝丽雅股份有限公司 | A kind of method of extension KKF filter filter screen service lifes |
| CN107336835B (en) * | 2017-06-23 | 2019-10-29 | 张辉 | A kind of Intelligent unattended machine with air purification function based on Internet of Things |
| CN107899320A (en) * | 2018-01-21 | 2018-04-13 | 梁永江 | A kind of environment-friendly type spinning and weaving workshop dust-extraction unit |
| CN108281084B (en) * | 2018-01-25 | 2021-08-27 | 杨宇杰 | Billboard with remove haze function |
| CN108722088A (en) * | 2018-07-10 | 2018-11-02 | 依科瑞德（北京）能源科技有限公司 | Willow catkins flying in the air automatic clearing apparatus |
| CN108905434A (en) * | 2018-07-26 | 2018-11-30 | 李冀湘 | A kind of novel continuous strainer deduster |
| CN109289425A (en) * | 2018-11-18 | 2019-02-01 | 史农魁 | A kind of paint locker air purifier |
| CN109869830A (en) * | 2019-03-01 | 2019-06-11 | 苏州洪昇新能源科技有限公司 | A kind of professional clean room air purging system |
| CN110567078B (en) * | 2019-08-09 | 2021-02-02 | 张和平 | New fan of long-life |
| CN111389112A (en) * | 2020-03-26 | 2020-07-10 | 佛山市蓝颂科技有限公司 | Dust removal device for removing VOC-containing gas |
| CN112516705A (en) * | 2020-11-11 | 2021-03-19 | 梁桂清 | Dust removal protection method for building construction |
| CN112807865A (en) * | 2020-12-10 | 2021-05-18 | 何太林 | But vehicle air conditioner filter core filter of automatically cleaning formula |
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- 2012-08-08 CN CN201510390134.3A patent/CN104958987B/en not_active Expired - Fee Related
- 2012-08-08 CN CN201510388937.5A patent/CN105032092A/en active Pending
- 2012-08-08 CN CN201210279526.9A patent/CN103055639B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105032092A (en) | 2015-11-11 |
| CN103055639B (en) | 2015-08-12 |
| CN102309904A (en) | 2012-01-11 |
| CN104958987A (en) | 2015-10-07 |
| CN103055639A (en) | 2013-04-24 |
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