CN105413343A - Air filtering device - Google Patents
Air filtering device Download PDFInfo
- Publication number
- CN105413343A CN105413343A CN201511023999.2A CN201511023999A CN105413343A CN 105413343 A CN105413343 A CN 105413343A CN 201511023999 A CN201511023999 A CN 201511023999A CN 105413343 A CN105413343 A CN 105413343A
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- China
- Prior art keywords
- dust
- controller
- drive part
- fan
- dedusting
- 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.)
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Classifications
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- 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
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- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an air filtering device which comprises a base, a draught fan support, a draught fan, a dust removing structure, a dust brushing structure, a rotating sealing cover, a motor, a water spraying pipe and a water pump. The draught fan comprises an air draft duct and fan blades, the air draft duct is provided with an air inlet and an air outlet, and the bottom face of the air draft duct is a plane. The dust removing structure is arranged in the middle of the air draft duct and comprises a filter screen and a dust collecting box, and the arrangement position of the dust collecting box is lower than that of the air draft duct. The dust brushing structure is used for brushing away dust attached to the side, facing the air inlet, of the filter screen and making the dust fall into the dust collecting box. The water spraying pipe is installed above the dust brushing structure and is used for washing the dust brushed away from the filter screen into the dust collecting box. The water pump is used for supplying water to the water spraying pipe. According to the air filtering device, the dust removing structure is arranged in the middle of the air draft duct, the dust brushing structure is further arranged, when dust removal needs to be performed on the filter screen, the dust brushing structure is started to clean the filter screen, dust removal can be performed without detaching the filter screen, dust removal is easy, and labor intensity is low; dust will not be scattered in all directions or fly upwards and will not be inhaled by workers, and the body health of the workers will not be affected.
Description
Technical field
The present invention relates to technical field of dust removal equipment, be specifically related to a kind of air filter unit.
Background technology
In prior art, by being used for, the equipment that dust is separated from flue gas is called deduster or cleaner, deduster all has a wide range of applications in industrial circle and daily life field, in the occasion that some have a large amount of dust to exist, in order to obtain the air cleaned, people generally will use air filter unit, are separated by dust from air.
Air filter unit comprises screen pack and separation equipment, and its dust removal process first uses screen pack to filter air often, then the dust retained is transferred to separation equipment and is separated.After some time of use, have a large amount of dust and be attached on screen pack screen pack is blocked, affect filter effect and efficiency of dust collection.For above-mentioned situation, people generally adopt the mode of dismounting to clear up, and take apart by whole air filter unit, brushed off by the dust be attached on screen pack, this manner of cleaning up not only labour intensity is large, and efficiency is low, and when scrubbing dust, dust is easily sucked by workman, affect healthy.Therefore, how designing a kind of filtering net cleaning easily and can not suck the air filter unit of dust, is still unsolved technical barrier in prior art.
Summary of the invention
Therefore, when the technical problem to be solved in the present invention is to overcome the filtering net cleaning of air filter unit in prior art, labour intensity is large, efficiency is low and easily suck the technological deficiency of dust, thus provides that a kind of filtering net cleaning is easy, efficiency is high and can not suck the air filter unit of dust.
For this reason, the invention provides a kind of air filter unit, comprising:
Base, is suitable for being fixedly installed;
Fan supporter, is fixedly installed on described base;
Blower fan, is fixedly mounted on described fan supporter, comprises suction tube, and is arranged on the fan blade of described suction tube inside, and described suction tube has air inlet and air outlet, and the bottom surface of described suction tube is plane;
Dedusting structure, is arranged in the middle part of described suction tube, comprises screen pack, and is arranged on the disposal box of close described air inlet side of described screen pack, and the setting position of described disposal box is lower than described suction tube;
Brush dirt structure, for being attached to brushing away towards the dust on described air inlet side of described screen pack, and makes it fall into described disposal box;
Rotate capping, be installed in rotation on the bottom surface of described suction tube, there is the primary importance of the upper shed hiding described disposal box, and rotation 90 ° of second places that the upper shed of described disposal box is opened;
Motor, is sealed between described primary importance and the described second place for driving described rotation and changes;
Spray pipe, is arranged on described brush dirt superstructure, inner for the dust brushed off from described screen pack being poured described disposal box;
Water pump, for supplying water for described spray pipe.
As a kind of preferred version, described brush dirt structure comprises:
Cleaning roller, being positioned at described air duct inner, having the bristle for being brushed off from described screen pack by dust;
Connecting rod, one end is fixedly connected with described cleaning roller, and the other end stretches out from the chute be located at described suction tube;
Connecting rod, the partial fixing stretched out from described chute of one end and described connecting rod is connected, and the other end is fixedly connected with the telescopic shaft of telescopic drive part, thus when described telescopic drive part work, drive described connecting rod, and then drive described cleaning roller to move up and down dedusting in described air duct inside.
As a kind of preferred version, described connecting rod and described connecting rod are provided with two, and one end of two described connecting rods is fixedly connected with the two ends of described cleaning roller respectively, and two described connecting rods are fixedly connected with the other end of two described connecting rods respectively; The other end of two described connecting rods is connected with the telescopic shaft of telescopic drive part described in one or two.
As a kind of preferred version, described cleaning roller is pressed on described screen pack with certain pressure.
As a kind of preferred version, also comprise rotating drive part, described rotating drive part is arranged on a described connecting rod, and has the rotating driveshaft for being connected with the free end of a described connecting rod; The described other end and the free end of connecting rod described in another of connecting rod described in another are rotatably connected.
As a kind of preferred version, also comprise dust cover, be removably mounted on the air inlet of described air duct.
As a kind of preferred version, also comprise controller, described controller comprises:
Controller of fan, for controlling described fan blade, making it be in can starting state or can not starting state;
Dedusting controller, for controlling described rotating drive part and described telescopic drive part startup work or stopping;
Described controller of fan can carry out record to the working time of shown fan blade, after arrival setting-up time, controlling that described fan blade is in can not starting state, and send dedusting signal to described dedusting controller, described pivoting controller controls described rotating drive part and described telescopic drive part startup work, described cleaning roller startup work is made to carry out dedusting, described dedusting controller control described telescopic drive part stretching motion 5-10 back and forth after, control described rotating drive part and described telescopic drive part quits work, and send enabling signal to described controller of fan, described controller of fan controls that described fan blade is in can starting state.
As a kind of preferred version, described dedusting controller is also electrically connected with described motor, after the dedusting signal that described dedusting controller receives from described controller of fan, first described motor is sent a signal to, rotate capping described in described Electric Machine Control and turn to the described second place, then control described rotating drive part and described telescopic drive part startup work;
Described dedusting controller control described telescopic drive part stretching motion 5-10 back and forth after, first described rotating drive part is controlled and described telescopic drive part quits work, then described motor is sent a signal to, rotate capping described in described Electric Machine Control and turn to described primary importance, finally send a signal to described controller of fan, described controller of fan controls that described fan blade is in can starting state.
As a kind of preferred version, also comprise alarm, described alarm is electrically connected with described controller of fan, described controller of fan control described fan blade be in can not starting state time, send signal alarm.
As a kind of preferred version, described disposal box is provided with the discharge outlet for outside draining.
Air filter unit provided by the invention, has the following advantages:
1. air filter unit of the present invention, is not only arranged in the middle part of suction tube by dedusting structure, is also provided with brush dirt structure, when needs carry out dedusting to screen pack, start brush dirt structure and screen pack is cleaned, can dedusting be carried out without the need to dismounting, thus dedusting is easy, and labour intensity is low; In addition, because whole dedusting structure is arranged in the middle part of suction tube, when using brush dirt structure to carry out dedusting to screen pack, dust can not four loosely to fly upward, and thus can not be sucked by workman, can not affect workman healthy.
2. air filter unit of the present invention, connecting rod and connecting rod are provided with two, one end of two connecting rods is fixedly connected with the two ends of cleaning roller respectively, two connecting rods are fixedly connected with the other end of two connecting rods respectively, and the other end of two connecting rods is connected with the telescopic shaft of one or two telescopic drive part.Adopt two connecting rods and two connecting rods, when telescopic shaft drives cleaning roller to move up and down, mobile more steady.
3. air filter unit of the present invention, also comprises rotating drive part, and for driving cleaning roller to rotate dedusting, when telescopic shaft drives cleaning roller to move up and down, rotating drive part works simultaneously, and drive cleaning roller to rotate dedusting, dust removing effects is better.
4. air filter unit of the present invention, also comprises controller, for controlling cleaning roller automatic dust removing, reducing and manually participating in, reduce cost of labor.
5. air filter unit of the present invention, also comprises alarm, controller of fan control fan blade be in can not starting state time, send signal alarm, remind people to start dedusting, dust cover can be buckled on air inlet by people, prevents the dust brushed off from screen pack from entering indoor.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in prior art or the specific embodiment of the invention, the accompanying drawing used in describing prior art or detailed description of the invention is below briefly described, apparently, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the front view of air filter unit of the present invention;
Fig. 2 is dust cleaning case structural representation of the present invention;
Reference numeral: 1-base, 2-blower bracket, 3-blower fan, 31-suction tube, 32-air inlet, 33-air outlet, 4-screen pack, 5-chute, 6-dust cleaning case, 7-dust cover, 8-disposal box, 81-discharge outlet, 9-motor, 10-connecting rod, 11-cleaning roller, 12-telescopic drive part, 13-connecting rod, 14-controller of fan, 15-dedusting controller, 16-alarm, 17-rotates capping, 18-motor, 19-spray pipe, 20-water pump.
Detailed description of the invention
Be described technical scheme of the present invention below in conjunction with Figure of description, obviously, following embodiment is not the whole embodiment of the present invention.Based on embodiment described in the invention, those of ordinary skill in the art, not making the every other embodiment obtained under other creative work prerequisites, belong to protection scope of the present invention.It should be noted that, if below in the described different embodiment of the present invention involved technical characteristic do not form conflict each other and just can be combined with each other.
Embodiment
The present embodiment provides a kind of air filter unit, as shown in Figure 1, comprising: base 1, is suitable for being fixedly installed; Fan supporter 2, is fixedly installed on described base 1; Blower fan 3, is fixedly mounted on described fan supporter 2, comprises suction tube 31, and is arranged on the fan blade of described suction tube 31 inside, and described suction tube 31 has air inlet 32 and air outlet 33, and the bottom surface of described suction tube 31 is plane; Dedusting structure, is arranged in the middle part of described suction tube 31, comprises screen pack 4, and is arranged on the disposal box 8 of close described air inlet 32 side of described screen pack 4, and the setting position of described disposal box 8 is lower than described suction tube 31; Brush dirt structure, for being attached to brushing away towards the dust on described air inlet 32 side of described screen pack 4, and makes it fall into described disposal box 8; Rotate capping 17, be installed in rotation on the bottom surface of described suction tube 31, there is the primary importance of the upper shed hiding described disposal box 8, and the second place that the upper shed of described disposal box 8 is opened by rotation 90 °; Motor 18, changes between described primary importance and the described second place for driving described rotation capping 17; Spray pipe 19, is arranged on described brush dirt superstructure, inner for the dust brushed off from described screen pack 4 being poured described disposal box 8; Water pump 20, for supplying water for described spray pipe 19.
Air filter unit of the present invention, is not only arranged on dedusting structure in the middle part of suction tube 31, is also provided with brush dirt structure, when needs carry out dedusting to screen pack 4, start brush dirt structure and screen pack 4 is cleaned, can dedusting be carried out without the need to dismounting, thus dedusting is easy, and labour intensity is low; In addition, because whole dedusting structure is arranged in the middle part of suction tube 31, when using brush dirt structure to carry out dedusting to screen pack 4, dust can not four loosely to fly upward, and thus can not be sucked by workman, can not affect workman healthy.
As shown in Figure 2, described brush dirt structure comprises: cleaning roller 11, being positioned at described air duct 31 inner, having the bristle for being brushed off from described screen pack 4 by dust; Connecting rod 10, one end is fixedly connected with described cleaning roller 11, and the other end stretches out from the chute 5 be located at described suction tube 31; Connecting rod 13, the partial fixing stretched out from described chute 5 of one end and described connecting rod 10 is connected, the other end is fixedly connected with the telescopic shaft of telescopic drive part 12, thus when described telescopic drive part 12 works, drive described connecting rod 10, and then drive described cleaning roller 11 to move up and down dedusting in described air duct 31 inside.
As one preferred embodiment, described connecting rod 10 and described connecting rod 13 are provided with two, one end of two described connecting rods 10 is fixedly connected with the two ends of described cleaning roller 11 respectively, and the other end of two described connecting rods 13 connecting rod 10 described with two is respectively fixedly connected with; The other end of two described connecting rods 10 is connected with the telescopic shaft of telescopic drive part 12 described in one or two.
Connecting rod 10 and connecting rod 13 are provided with two, one end of two connecting rods 10 is fixedly connected with the two ends of cleaning roller 11 respectively, two connecting rods 13 are fixedly connected with the other end of two connecting rods 10 respectively, and the other end of two connecting rods 13 is connected with the telescopic shaft of one or two telescopic drive part 12.Adopt two connecting rods 10 and two connecting rods 13, when telescopic shaft drives cleaning roller 11 to move up and down, mobile more steady.
Described cleaning roller 11 is pressed on described screen pack 4 with certain pressure.
Also comprise rotating drive part 9, described rotating drive part 9 is arranged on a described connecting rod 13, and has the rotating driveshaft for being connected with the free end of a described connecting rod 10; The described other end and the free end of connecting rod 10 described in another of connecting rod 13 described in another are rotatably connected.When telescopic shaft drives cleaning roller 11 to move up and down, rotating drive part 9 works simultaneously, and drive cleaning roller 11 to rotate dedusting, dust removing effects is better.
Also comprise dust cover 7, be removably mounted on the air inlet 32 of described air duct 31.
Also comprise controller, described controller comprises: controller of fan 14, and for controlling described fan blade, making it be in can starting state or can not starting state; Dedusting controller 15, for controlling described rotating drive part 9 and described telescopic drive part 12 starts work or stopping;
Described controller of fan 14 can carry out record to the working time of shown fan blade, after arrival setting-up time, controlling that described fan blade is in can not starting state, and send dedusting signal to described dedusting controller 15, described pivoting controller 15 controls described rotating drive part 9 and described telescopic drive part 12 starts work, make described cleaning roller 11 start work and carry out dedusting, described dedusting controller 16 control described telescopic drive part 12 stretching motion 5-10 back and forth after, control described rotating drive part 9 and described telescopic drive part 12 quits work, and send enabling signal to described controller of fan 14, described controller of fan 14 controls that described fan blade is in can starting state.
Described dedusting controller 15 is also electrically connected with described motor 18, after the dedusting signal that described dedusting controller 15 receives from described controller of fan 14, first described motor 18 is sent a signal to, described motor 18 controls described rotation capping 17 and turns to the described second place, then controls described rotating drive part 9 and described telescopic drive part 12 starts work;
Described dedusting controller 16 control described telescopic drive part 12 stretching motion 5-10 back and forth after, first described rotating drive part 9 is controlled and described telescopic drive part 12 quits work, then described motor 18 is sent a signal to, described motor 18 controls described rotation capping 17 and turns to described primary importance, finally send enabling signal to described controller of fan 14, described controller of fan 14 controls that described fan blade is in can starting state.
Also comprise alarm 16, described alarm 16 is electrically connected with described controller of fan 14, described controller of fan 14 control described fan blade be in can not starting state time, send signal alarm.Controller of fan 14 control fan blade be in can not starting state time, send signal alarm, remind people start dedusting, dust cover 7 can be buckled on air inlet 32 by people, prevents the dust brushed off from screen pack 4 from entering indoor.
Described disposal box 8 is also provided with the discharge outlet 81 for outside draining.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (10)
1. an air filter unit, is characterized in that: comprising:
Base (1), is suitable for being fixedly installed;
Fan supporter (2), is fixedly installed on described base (1);
Blower fan (3), be fixedly mounted on described fan supporter (2), comprise suction tube (31), and be arranged on the inner fan blade of described suction tube (31), described suction tube (31) has air inlet (32) and air outlet (33), and the bottom surface of described suction tube (31) is plane;
Dedusting structure, be arranged on described suction tube (31) middle part, comprise screen pack (4), with the disposal box (8) of close described air inlet (32) side being arranged on described screen pack (4), the setting position of described disposal box (8) is lower than described suction tube (31);
Brush dirt structure, for being attached to brushing away towards the dust on described air inlet (32) side of described screen pack (4), and makes it fall into described disposal box (8);
Rotate capping (17), be installed in rotation on the bottom surface of described suction tube (31), there is the primary importance of the upper shed hiding described disposal box (8), and the second place that the upper shed of described disposal box (8) is opened by rotation 90 °;
Motor (18), changes between described primary importance and the described second place for driving described rotation capping (17);
Spray pipe (19), is arranged on described brush dirt superstructure, inner for the dust brushed off from described screen pack (4) being poured described disposal box (8);
Water pump (20), for supplying water for described spray pipe (19).
2. air filter unit according to claim 1, is characterized in that: described brush dirt structure comprises:
Cleaning roller (11), being positioned at described air duct (31) inner, having the bristle for being brushed off from described screen pack (4) by dust;
Connecting rod (10), one end is fixedly connected with described cleaning roller (11), and the other end stretches out from the chute (5) be located at described suction tube (31);
Connecting rod (13), the partial fixing stretched out from described chute (5) of one end and described connecting rod (10) is connected, the other end is fixedly connected with the telescopic shaft of telescopic drive part (12), thus when described telescopic drive part (12) work, drive described connecting rod (10), and then drive described cleaning roller (11) to move up and down dedusting in described air duct (31) inside.
3. air filter unit according to claim 2, it is characterized in that: described connecting rod (10) and described connecting rod (13) are provided with two, one end of two described connecting rods (10) is fixedly connected with the two ends of described cleaning roller (11) respectively, and two described connecting rods (13) are fixedly connected with the other end of two described connecting rods (10) respectively; The other end of two described connecting rods (10) is connected with the telescopic shaft of telescopic drive part (12) described in one or two.
4. the air filter unit according to Claims 2 or 3, is characterized in that: described cleaning roller (11) is pressed on described screen pack (4) with certain pressure.
5. air filter unit according to claim 3, it is characterized in that: also comprise rotating drive part (9), described rotating drive part (9) is arranged on a described connecting rod (13), and has the rotating driveshaft for being connected with the free end of a described connecting rod (10); The free end of the described other end of connecting rod described in another (13) and connecting rod described in another (10) is rotatably connected.
6. the air filter unit according to any one of claim 1-5, is characterized in that: also comprise dust cover (7), is removably mounted on the air inlet (32) of described air duct (31).
7. the air filter unit according to any one of claim 1-6, is characterized in that: also comprise controller, and described controller comprises:
Controller of fan (14), for controlling described fan blade, making it be in can starting state or can not starting state;
Dedusting controller (15), starts work or stopping for controlling described rotating drive part (9) and described telescopic drive part (12);
Described controller of fan (14) can carry out record to the working time of shown fan blade, after arrival setting-up time, controlling that described fan blade is in can not starting state, and send dedusting signal to described dedusting controller (15), described pivoting controller (15) controls described rotating drive part (9) and described telescopic drive part (12) starts work, described cleaning roller (11) startup work is made to carry out dedusting, described dedusting controller (16) control described telescopic drive part (12) stretching motion 5-10 back and forth after, control described rotating drive part (9) and described telescopic drive part (12) quits work, and send enabling signal to described controller of fan (14), described controller of fan (14) controls that described fan blade is in can starting state.
8. air filter unit according to claim 7, it is characterized in that: described dedusting controller (15) is also electrically connected with described motor (18), after described dedusting controller (15) receives the dedusting signal from described controller of fan (14), first described motor (18) is sent a signal to, described motor (18) controls described rotation capping (17) and turns to the described second place, then controls described rotating drive part (9) and described telescopic drive part (12) startup work;
Described dedusting controller (16) control described telescopic drive part (12) stretching motion 5-10 back and forth after, first described rotating drive part (9) is controlled and described telescopic drive part (12) quits work, then described motor (18) is sent a signal to, described motor (18) controls described rotation capping (17) and turns to described primary importance, finally send enabling signal to described controller of fan (14), described controller of fan (14) controls that described fan blade is in can starting state.
9. the air filter unit according to claim 7 or 8, it is characterized in that: also comprise alarm (16), described alarm (16) is electrically connected with described controller of fan (14), described controller of fan (14) control described fan blade be in can not starting state time, send signal alarm.
10. air filter unit according to claim 9, is characterized in that: described disposal box (8) is provided with the discharge outlet (81) for outside draining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023999.2A CN105413343A (en) | 2015-12-30 | 2015-12-30 | Air filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023999.2A CN105413343A (en) | 2015-12-30 | 2015-12-30 | Air filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105413343A true CN105413343A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511023999.2A Pending CN105413343A (en) | 2015-12-30 | 2015-12-30 | Air filtering device |
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| CN (1) | CN105413343A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106512571A (en) * | 2016-12-02 | 2017-03-22 | 小狗电器互联网科技（北京）股份有限公司 | Air purifier as well as filter element cleaning device and filter element cleaning method thereof |
| CN107281845A (en) * | 2017-08-15 | 2017-10-24 | 合肥明英富海生物科技有限公司 | A kind of dust cleaner of dust removal machine |
| CN107308765A (en) * | 2017-08-15 | 2017-11-03 | 合肥明英富海生物科技有限公司 | A kind of manufacturing process of the dust cleaner of dust removal machine |
| CN108253548A (en) * | 2017-12-24 | 2018-07-06 | 吕慧峰 | A kind of clarifier strainer method for cleaning easy to use |
| CN108284093A (en) * | 2017-12-25 | 2018-07-17 | 天津天绿健科技有限公司 | A kind of adsorption layer automatic cleaning apparatus in dust exhaust apparatus |
| CN109569110A (en) * | 2018-12-29 | 2019-04-05 | 烟台工程职业技术学院 | A kind of chemical emission improvement automatic control device |
| CN109939497A (en) * | 2019-02-19 | 2019-06-28 | 陆光川 | A kind of portable type air cleaning facility with long service life |
| CN110652788A (en) * | 2019-09-10 | 2020-01-07 | 庄伙金 | Intelligent clean type air purification equipment |
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| CN111888854A (en) * | 2020-06-01 | 2020-11-06 | 包头江馨微电机科技有限公司 | Dustproof structure and dustproof method of voice coil motor |
| CN111955074A (en) * | 2020-08-20 | 2020-11-20 | 宁波市鄞州咸兴粮机服务专业合作社 | Assembled ditching level land device |
| CN112090211A (en) * | 2020-08-31 | 2020-12-18 | 南京蔚蓝环境科技有限公司 | Atmospheric dust filter and processing device thereof |
| CN112229012A (en) * | 2020-10-16 | 2021-01-15 | 安徽倍净环境科技有限公司 | Box electron dust removal air purification device of combination air conditioner |
| CN113916735A (en) * | 2021-10-09 | 2022-01-11 | 安徽檀松建筑工程有限公司 | Building site dust pollution check out test set |
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