CN105126487A - Haze purifier with four fans - Google Patents
Haze purifier with four fans Download PDFInfo
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- CN105126487A CN105126487A CN201510389367.1A CN201510389367A CN105126487A CN 105126487 A CN105126487 A CN 105126487A CN 201510389367 A CN201510389367 A CN 201510389367A CN 105126487 A CN105126487 A CN 105126487A
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Abstract
A haze purifier with four fans has a fixed plate on which four wind passages are arranged; the trailing flank of each wind passage recesses forward to form a square bucket-shaped groove whose bottom is round-shaped and breaks through forwardly and becomes a fixed hole for fans; the front end opening diameter of the fixed hole of each fan is larger than that of the back end opening, the fixed hole of each fan is horn-shaped and the fan is fixedly arranged in the fixed hole. A rear sidewall of a cabinet is provided with a wind inlet window, and front-row steel rollers and back-row steel rollers are correspondingly installed at the window on the front side and the back side respectively and rotate oppositely. A non-woven fabric is in transmission connection between the front-row steel rollers and the back-row steel rollers; two free ends of the non-woven fabric are connected to form a loop; the front-row steel roller or back-row steel rollers are in transmission connection with a motor; a strong screen is fixedly connected with the two free ends of the non-woven fabric and forms a loop with the non-woven fabric; the size of the strong screen adapts to the wind inlet window; the non-woven fabric is wound between the front-row steel rollers and back-row steel rollers in an 'S'-shaped winding manner.
Description
Technical field
The present invention relates to a kind of air cleaning unit, particularly relate to a kind of haze purification device with four blower fans.
Background technology
Along with the quickening of process of industrialization and the raising of people's living standard, in fields such as daily life, commercial operation, industrial production and construction, increasing to the consumption of resource, the air pollutants given off get more and more, the quantity of PM2.5 in air, pollen, dust etc. is also sharply increased, air quality reduces day by day, thus has shone into more and more serious haze phenomenon, has had a strong impact on daily life and healthy.
In order to improve air quality, the pollutant in air is needed to filter out, and in the presence of mankind's activity, natural purification process is slower, this filters the pollutant in air with regard to needing to introduce air cleaning unit, and the small-sized clarifier of indoor can only carry out purification of air among a small circle, be difficult to reach the effect to outdoor large area purification of air, therefore need to introduce a kind of air cleaning unit that may be used for the purification of outdoor air large area.
Summary of the invention
The object of this invention is to provide a kind of haze purification device with four blower fans, this device can carry out large-area purification to outdoor air.
For achieving the above object, the technical solution used in the present invention is:
A kind of haze purification device with four blower fans, comprise cabinet, it is characterized in that, the front side wall of cabinet has air outlet window, air outlet window place is installed with fixed head, fixed head offers four and crosses wind passage, and each trailing flank crossing wind passage is recessed to form forward bucket-shaped groove, the bottom of groove is circle and gets through forward to become blower fan fixing hole, and the diameter of blower fan fixing hole front port is greater than the diameter of port thereafter, becomes tubaeform; Blower fan fixing hole internal fixtion is provided with blower fan; The rear wall of cabinet has air-inlet window, and before and after air-inlet window place, correspondence is rotatably installed with front-seat steel rider and rear row's steel rider relatively, is connected with non-woven fabrics between front-seat steel rider and rear row's steel rider, and two free ends of non-woven fabrics link together, form closed-loop path; Front-seat steel rider or rear row's steel rider are connected with CD-ROM drive motor.
According to described a kind of haze purification device with four blower fans, it is characterized in that, be fixedly connected with powerful screen cloth between two free ends of described non-woven fabrics, powerful screen cloth and non-woven fabrics form closed-loop path, and size and the described air-inlet window of powerful screen cloth adapt; Non-woven fabrics is wrapped between described front-seat steel rider and described rear row's steel rider with serpentine canoe.
According to described a kind of haze purification device with four blower fans, it is characterized in that, it is outer and be fixedly connected with drive sprocket that wherein one end of described front-seat steel rider or rear row's steel rider extend out to described cabinet, and drive sprocket is connected by chain drive with described CD-ROM drive motor.
According to described a kind of haze purification device with four blower fans, it is characterized in that, the homonymy free end of multiple described front-seat steel rider or rear row's steel rider extend out to outside described cabinet, each free end is fixedly connected with two described drive sprockets simultaneously, and neighbouring drive sprocket is connected by chain drive.
According to described a kind of haze purification device with four blower fans, it is characterized in that, on rear side of described cabinet, correspondence is fixedly connected with gripper shoe respectively up and down, two support steel riders parallel to each other are relatively rotatably installed with between gripper shoe, supporting steel rider is positioned on rear side of described rear row's steel rider, and described non-woven fabrics and described powerful screen cloth stride across and support steel rider, being in transmission connection is supporting outside steel rider.
According to described a kind of haze purification device with four blower fans, it is characterized in that, described non-woven fabrics end is installed with sensing chip, and described gripper shoe is installed with inductor, inductor corresponding with sensing chip and by signal control be connected; This device also comprises dust catcher, and dust catcher is fixedly mounted on non-woven fabrics side.
According to described a kind of haze purification device with four blower fans, it is characterized in that, the filter bores aperture of described non-woven fabrics is 0.3um ~ 10um; The degree of depth of described fixed head groove is 1/5 ~ 2/5 of fixed head thickness.
According to described a kind of haze purification device with four blower fans, it is characterized in that, described blower fan comprises fan supporter, and fan supporter is connected with fixed head, fan supporter is fixed with bearing block, in bearing block, is connected with impeller and hydraulic motor by rotary main shaft in both sides, front and back; Impeller comprises radially, multiple blades of equidistantly distribution, and blade is fixedly connected with leaf joint; Leaf joint is toroidal, and leaf Ring current distribution is the emission center of blade; The joining of leaf joint and blade is positioned on blade, emission center side 4/6 to 5/6 place of distance blade; Leaf joint extends connection along the width of blade to the opposite side of blade from the air intake side of blade, and leaf joint is across 70% ~ 100% of width of blade.
According to described a kind of haze purification device with four blower fans, it is characterized in that, adjacent described front-seat steel rider and rear row's steel rider, between be fixedly connected with reinforcement, reinforcement is positioned at the air side of described non-woven fabrics, reinforcement comprises two connecting plates that left and right sides correspondence is arranged, connecting plate and front-seat steel rider and rear row's steel rider is tangent is between two fixedly linked, and is fixedly connected with round muscle between two connecting plates of every layer.
According to described a kind of haze purification device with four blower fans, it is characterized in that, be provided with net-shaped protective cover on front side of described air outlet window He on rear side of described air-inlet window, described enclosure top is provided with ceiling.
The present invention is by the drive of the large wind-force blower fan of employing four, be that the non-woven fabrics of 0.3um ~ 10um carries out filtration, purification to the pollutant in outdoor air by filter bores aperture, and the dust after filtering is carried out collections process, can large area air outside clean room in the short time under the synergy of several rows of unit.Adopt four blower fans to remove the airflow effects of a replacement large blower fan, air pressure everywhere to be made in cabinet to compare balance, make gas evenly by non-woven fabrics, dust removing effects is better; Blower fan diminishes simultaneously, effectively can alleviate the pressure of blower fan to main shaft, and the resistance of air inlet/outlet before and after blower fan, the power of CD-ROM drive motor can be reduced, extend the service life of blower fan, and draught fan impeller is by leaf joint process, can reduce power of motor, adopt fluid motor-driven, such that this device volume is little, energy consumption is low.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention;
Fig. 2 is horizontal cross-sectional structural representation of the present invention;
Fig. 3 is perspective cross-sectional structural representation of the present invention;
Fig. 4 is the structural representation of fixed head in Fig. 3;
Fig. 5 is the plan structure schematic diagram of Fig. 4;
Fig. 6 is side, sectional structural representation of the present invention;
Fig. 7 is the structural representation of reinforcement in Fig. 6.
In accompanying drawing:
1, cabinet; 2, fixed head; 3, CD-ROM drive motor; 4, chain; 5, drive sprocket; 6, gripper shoe; 7, base; 8, fan supporter; 9, impeller; 10, leaf joint; 11, rotary main shaft; 12, non-woven fabrics; 13, reinforcement; 14, muscle is justified; 15, front-seat steel rider; 16, rear row's steel rider; 17, steel rider is supported; 18, dust catcher; 19, powerful screen cloth; 20, inductor; 21, hydraulic motor; 22, bearing block.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
A kind of haze purification device with four blower fans, as shown in Figures 1 to 7, comprise cabinet 1, the front side wall of cabinet 1 has air outlet window, air outlet window place is installed with fixed head 2, fixed head 2 offers four and crosses wind passage, and each trailing flank crossing wind passage is recessed to form forward bucket-shaped groove, the bottom of groove is circle and gets through forward to become blower fan fixing hole, and the diameter of blower fan fixing hole front port is greater than the diameter of port thereafter, becomes tubaeform; Blower fan fixing hole internal fixtion is provided with blower fan; The rear wall of cabinet 1 has air-inlet window, before and after air-inlet window place, correspondence is rotatably installed with front-seat steel rider 15 and rear row's steel rider 16 relatively, be connected with non-woven fabrics 12 between front-seat steel rider 15 and rear row's steel rider 16, two free ends of non-woven fabrics 12 link together, form closed-loop path; Front-seat steel rider 15 or rear row's steel rider 16 are connected with CD-ROM drive motor 3.Be fixedly connected with powerful screen cloth 19 between two free ends of described non-woven fabrics 12, powerful screen cloth 19 forms closed-loop path with non-woven fabrics 12, and size and the described air-inlet window of powerful screen cloth 19 adapt; Non-woven fabrics 12 is wrapped between described front-seat steel rider 15 and described rear row's steel rider 16 with serpentine canoe.
In the present embodiment, it is outer and be fixedly connected with drive sprocket 5 that wherein one end of described front-seat steel rider 15 or rear row's steel rider 16 extend out to described cabinet 1, and drive sprocket 5 is connected by chain 4 transmission with described CD-ROM drive motor 3.The homonymy free end of multiple described front-seat steel rider 15 or rear row's steel rider 16 extend out to outside described cabinet 1, and each free end is fixedly connected with two described drive sprockets 5 simultaneously, and neighbouring drive sprocket 5 is connected by chain 4 transmission.On rear side of described cabinet 1, correspondence is fixedly connected with gripper shoe 6 respectively up and down, two support steel riders 17 parallel to each other are relatively rotatably installed with between gripper shoe 6, supporting steel rider 17 is positioned on rear side of described rear row's steel rider 16, and described non-woven fabrics 12 and described powerful screen cloth 19 stride across and support steel rider 17, being in transmission connection is supporting outside steel rider 17.
In the present embodiment, described non-woven fabrics 12 end is installed with sensing chip, and described gripper shoe 6 is installed with inductor 20, inductor 20 corresponding with sensing chip and by signal control be connected; This device also comprises dust catcher 18, and dust catcher 18 is fixedly mounted on non-woven fabrics 12 side.The filter bores aperture of described non-woven fabrics 12 is 0.3um ~ 10um; The degree of depth of described fixed head 2 groove is 1/5 ~ 2/5 of fixed head 2 thickness.
In the present embodiment, described blower fan comprises fan supporter 8, and fan supporter 8 is connected with fixed head 2, fan supporter 8 is fixed with bearing block 22, is connected with impeller 9 and hydraulic motor 21 in bearing block 22 by rotary main shaft 11 in both sides, front and back; Impeller 9 comprises radially, multiple blades of equidistantly distribution, blade is fixedly connected with leaf joint 10; Leaf joint 10 is toroidal, and the center of leaf joint 10 is the emission center of blade; Leaf joint 10 and the joining of blade are positioned on blade, emission center side 4/6 to 5/6 place of distance blade; Leaf joint 10 extends connection along the width of blade to the opposite side of blade from the air intake side of blade, and leaf joint 10 is across 70% ~ 100% of width of blade.Adjacent described front-seat steel rider 15 and rear row's steel rider 16, between be fixedly connected with reinforcement 13, reinforcement 13 is positioned at the air side of described non-woven fabrics 12, reinforcement 13 comprises two connecting plates that left and right sides correspondence is arranged, connecting plate and front-seat steel rider 15 and rear row's steel rider 16 is tangent is between two fixedly linked, be fixedly connected with round muscle 14 between two connecting plates of every layer.Be provided with net-shaped protective cover on front side of described air outlet window He on rear side of described air-inlet window, described cabinet 1 top is provided with ceiling.
The present invention includes two sides, front and back to open wide as vent window, all the other each the cabinet closed by corrosion resistant plate, fixed head is provided with before cabinet, fixed head is fixed with the blower fan that 4 sizes are identical, blower fan passes through fluid motor-driven, open wide after cabinet, steel rider is arranged after vertical fixes a row perpendicular to face, cabinet left and right, cabinet inside, the front-seat steel rider of a row is fixed with the direction identical with rear row's steel rider, along the tangential direction of two row's steel riders, reinforcement is fixed with at cabinet inside, reinforcement is positioned at the air side of non-woven fabrics, two row's steel riders are wound with the non-woven fabrics wide with cabinet inside with S shape canoe, non-woven fabrics stretches out the fillet place that cabinet place is adjacent to cabinet upper and lower plates, cabinet and rear environment are separated, the filter bores aperture of non-woven fabrics is 0.3um ~ 10um, the free end of non-woven fabrics is connected with the powerful screen cloth outside cabinet, and two that are wrapped in cabinet outside support on steel rider, be fixed on base bottom cabinet.
The present invention can be a device with a cabinet scope, every 3 devices form an equipment, every platform equipment is furnished with a control system, every 4 equipment form a unit, the square box of cabinet to be rib length be 3 ~ 4m, the sidewall thickness of cabinet is 80mm, fixed head is by header board, rear plate and excessively wind passage composition, header board is a square plate, four air vents have been dug in top, rear plate has four identical capable grooves of the Fang Dou caved in forward, bottom portion of groove has dug air vent, be connected with broadening formation between two air vents of front and back and cross wind passage, being closed by corrosion resistant plate up and down of front and rear panels, each part thickness is 8 ~ 20mm,
The width of fixed head is 500 ~ 600mm, and after cabinet, the corrosion resistant plate of the left and right sides is respectively welded with 2 pieces of gripper shoes up and down, cabinet is fixed on base, and base fixes on the ground.Fixed head is made up of header board, rear plate and mistake wind passage, the flat board be positioned at outside cabinet is front version, the rear plate of fixed head inwardly digs four identical bucket-shaped grooves, four sides of groove are round and smooth to connect, and bottom is circular port, and the circular hole of front and rear panels passed through wind expanding channels, depth of groove is 150 ~ 200mm, the front end bore crossing wind passage is greater than rear end bore, and front end bore is 1000 ~ 1500mm, and rear end bore is 800 ~ 1300mm.
In the present embodiment, 100 ~ 200mm place after distance cabinet, perpendicular to two sides, left and right, by bearing in cabinet, in same vertical guide, equidistant fix 11 after arrange steel rider, cabinet inside, along on the direction identical with rear row's steel rider, in same vertical guide, 10 front-seat steel riders are fixed by bearing, two row's steel riders are at a distance of 2 ~ 2.5m, each front-seat steel rider is positioned at adjacent two of rear and arranges afterwards on the perpendicular bisector of steel rider, on rear side of cabinet, left and right correspondence, upper and lower two groups of gripper shoes, same vertical guide is fixed with two and supports steel rider, the diameter of steel rider is 60 ~ 80mm.Four orthogonal fan supporters are provided with in each blower fan fixing hole on fixed head, fan supporter is fixed with bearing block, impeller and hydraulic motor is connected with by rotary main shaft in both sides, front and back in bearing block, impeller diameter is 1000 ~ 1400mm, on the blade of impeller from interior outward 70% ~ 80% position be welded with leaf joint.
From the steel rider of first, top, downwards, a steel rider is just had to stretch out in outside cabinet every a steel rider in rear row's steel rider, and be connected with two drive sprockets, linked between two by chain between upper and lower two drive sprockets, drive sprocket on two middle steel riders is received on CD-ROM drive motor by chain, CD-ROM drive motor is fixed on after cabinet by gripper shoe, and CD-ROM drive motor is positioned on the perpendicular bisector of middle two drive sprocket lines of centres.
Front two rows steel rider is wrapped with the canoe of S shape the non-woven fabrics that, filter bores aperture wide with cabinet inside is 0.3um ~ 10um, reinforcement is positioned at the air side of non-woven fabrics, two free ends of non-woven fabrics are connected with the powerful screen cloth outside cabinet, and be wrapped on support steel rider, non-woven fabrics dedusting side two gripper shoes are thereunder fixed with dust catcher.Reinforcement both sides are two pieces of cuboid thin plates (i.e. connecting plate), are welded with the round muscle that five diameters are 10 ~ 20mm between two pieces of connecting plates, equidistantly, and two connecting plates are welded on cabinet inside along the direction tangent between two with front two rows steel rider.
In the present embodiment, gripper shoe is provided with inductor, the end of non-woven fabrics is provided with sensing chip, sensing chip is corresponding with inductor to be arranged, and respectively net-shaped protective cover is housed before and after cabinet, and device entirety is stainless steel structure, steel rider bearing place is provided with water seal, and equipment top is provided with ceiling.
The non-woven fabrics that filter bores aperture is 0.3um ~ 10um is wrapped on steel rider with the canoe of S shape by the present invention, the rolling action of steel rider is conducive to the winding of non-woven fabrics, hydraulic motor is adopted to drive blower fan running, blower fan wind-force can reach 7 ~ 8 grades, under the effect of powerful screen cloth, inhibition can not be produced in the inlet side of non-woven fabrics.
The present invention is controlled by PLC system, after opening equipment, blower fan running is driven by hydraulic motor, formation gas flows, air with pollutant springs up to non-woven fabrics under the drive of air pressure, non-woven fabrics filters, gas after filtration discharges cabinet by blower fan, until blower fan work after 3 ~ 5 hours, under the control of PLC system, close hydraulic motor, open CD-ROM drive motor and dust catcher simultaneously, CD-ROM drive motor passes through chain, drive sprocket thus drive after row steel rider rotate, make the driven rotation of other steel riders, thus drive non-woven fabrics lower end to move upward, and the dust granules sucked by dust catcher on it, when non-woven fabrics runs one week, under the induction effect of inductor, CD-ROM drive motor and dust catcher shut down, open hydraulic motor and proceed dust removal operation.This device can arrange a unit every 1 ~ 3 kilometer, purifies outdoor large area air.
The present invention drives gas flowing by 4 blower fans of cabinet front portion, thus make pernicious gas containing contamination particle by non-woven fabrics flow forward, and filter on non-woven fabrics, gas after filtration is discharged forward, thus reach the object purified air, solve deleterious particle in air and cross the life of multipair people and the healthy problem bringing many harm.
Claims (10)
1. the haze purification device with four blower fans, comprise cabinet (1), it is characterized in that, the front side wall of cabinet (1) has air outlet window, air outlet window place is installed with fixed head (2), fixed head (2) offers four and crosses wind passage, and each trailing flank crossing wind passage is recessed to form forward bucket-shaped groove, the bottom of groove is circle and gets through forward to become blower fan fixing hole, and the diameter of blower fan fixing hole front port is greater than the diameter of port thereafter, becomes tubaeform; Blower fan fixing hole internal fixtion is provided with blower fan; The rear wall of cabinet (1) has air-inlet window, before and after air-inlet window place, correspondence is rotatably installed with front-seat steel rider (15) and rear row's steel rider (16) relatively, be connected with non-woven fabrics (12) between front-seat steel rider (15) and rear row's steel rider (16), two free ends of non-woven fabrics (12) link together, form closed-loop path; Front-seat steel rider (15) or after arrange steel rider (16) and be connected with CD-ROM drive motor (3).
2. a kind of haze purification device with four blower fans according to claim 1, it is characterized in that, powerful screen cloth (19) is fixedly connected with between two free ends of described non-woven fabrics (12), powerful screen cloth (19) forms closed-loop path with non-woven fabrics (12), and size and the described air-inlet window of powerful screen cloth (19) adapt; Non-woven fabrics (12) is wrapped between described front-seat steel rider (15) and described rear row's steel rider (16) with serpentine canoe.
3. a kind of haze purification device with four blower fans according to claim 2, it is characterized in that, described front-seat steel rider (15) or the wherein one end of arranging steel rider (16) afterwards extend out to described cabinet (1) and be fixedly connected with drive sprocket (5) outward, and drive sprocket (5) is connected by chain (4) transmission with described CD-ROM drive motor (3).
4. a kind of haze purification device with four blower fans according to claim 3, it is characterized in that, multiple described front-seat steel rider (15) or the homonymy free end arranging steel rider (16) afterwards extend out to described cabinet (1) outward, each free end is fixedly connected with two described drive sprockets (5) simultaneously, and neighbouring drive sprocket (5) is connected by chain (4) transmission.
5. a kind of haze purification device with four blower fans according to claim 4, it is characterized in that, on rear side of described cabinet (1), correspondence is fixedly connected with gripper shoe (6) respectively up and down, two support steel riders (17) parallel to each other are relatively rotatably installed with between gripper shoe (6), support steel rider (17) and be positioned at described rear row's steel rider (16) rear side, described non-woven fabrics (12) and described powerful screen cloth (19) stride across and support steel rider (17), be in transmission connection in support steel rider (17) outside.
6. a kind of haze purification device with four blower fans according to claim 5, it is characterized in that, described non-woven fabrics (12) end is installed with sensing chip, described gripper shoe (6) is installed with inductor (20), inductor (20) corresponding with sensing chip and by signal control be connected; This device also comprises dust catcher (18), and dust catcher (18) is fixedly mounted on non-woven fabrics (12) side.
7. a kind of haze purification device with four blower fans according to claim 6, is characterized in that, the filter bores aperture of described non-woven fabrics (12) is 0.3um ~ 10um; The degree of depth of described fixed head (2) groove is 1/5 ~ 2/5 of fixed head (2) thickness.
8. a kind of haze purification device with four blower fans according to claim 7, it is characterized in that, described blower fan comprises fan supporter (8), fan supporter (8) is connected with fixed head (2), fan supporter (8) is fixed with bearing block (22), in bearing block (22), is connected with impeller (9) and hydraulic motor (21) by rotary main shaft (11) in both sides, front and back; Impeller (9) comprises radially, multiple blades of equidistantly distribution, blade is fixedly connected with leaf joint (10); Leaf joint (10) is toroidal, and the center of leaf joint (10) is the emission center of blade; Leaf joint (10) and the joining of blade are positioned on blade, emission center side 4/6 to 5/6 place of distance blade; Leaf joint (10) extends connection along the width of blade to the opposite side of blade from the air intake side of blade, and leaf joint (10) is across 70% ~ 100% of width of blade.
9. a kind of haze purification device with four blower fans according to claim 8, it is characterized in that, adjacent described front-seat steel rider (15) and rear row's steel rider (16), between be fixedly connected with reinforcement (13), reinforcement (13) is positioned at the air side of described non-woven fabrics (12), reinforcement (13) comprises two connecting plates that left and right sides correspondence is arranged, connecting plate and front-seat steel rider (15) and rear row's steel rider (16) is tangent is between two fixedly linked, be fixedly connected with round muscle (14) between two connecting plates of every layer.
10. a kind of haze purification device with four blower fans according to any one of claim 1-9, is characterized in that, be provided with net-shaped protective cover on front side of described air outlet window He on rear side of described air-inlet window, described cabinet (1) top is provided with ceiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510389367.1A CN105126487A (en) | 2015-07-06 | 2015-07-06 | Haze purifier with four fans |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510389367.1A CN105126487A (en) | 2015-07-06 | 2015-07-06 | Haze purifier with four fans |
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| CN105126487A true CN105126487A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510389367.1A Pending CN105126487A (en) | 2015-07-06 | 2015-07-06 | Haze purifier with four fans |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251288A (en) * | 2015-10-19 | 2016-01-20 | 北京巨维通科技有限公司 | Outdoor haze purification treatment device |
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| CN102225283A (en) * | 2011-04-22 | 2011-10-26 | 中华全国供销合作总社郑州棉麻工程技术设计研究院 | Conveyor type filtering deduster |
| CN102828683A (en) * | 2011-06-13 | 2012-12-19 | 金平 | Automatic air filtering window |
| CN203694802U (en) * | 2014-02-17 | 2014-07-09 | 郑州金石环境技术有限公司 | Oil fume purifying device with movable brush |
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Application publication date: 20151209 |