CN114602922B - Dedusting method and device for elevator cooperative production line - Google Patents
Dedusting method and device for elevator cooperative production line Download PDFInfo
- Publication number
- CN114602922B CN114602922B CN202210402013.6A CN202210402013A CN114602922B CN 114602922 B CN114602922 B CN 114602922B CN 202210402013 A CN202210402013 A CN 202210402013A CN 114602922 B CN114602922 B CN 114602922B
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- Prior art keywords
- pressure air
- air outlet
- air
- pressure
- dust
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 85
- 238000003466 welding Methods 0.000 claims abstract description 45
- 238000009423 ventilation Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 12
- 239000000779 smoke Substances 0.000 description 25
- 238000005192 partition Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 230000006837 decompression Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention discloses a dedusting method and a dedusting device for an elevator cooperative production line, wherein the method comprises the steps of arranging a negative pressure air inlet (1) and a plurality of high-pressure air outlets (2) at welding equipment of the elevator cooperative production line, wherein the negative pressure air inlet (1) is positioned above a welding point (3) of the welding equipment, and the plurality of high-pressure air outlets (2) are circumferentially distributed at the outer side of the welding point (3); the high-pressure air outlet (2) is in a round shape, the high-pressure air outlet (2) is in a strip shape, and the high-pressure air outlet (2) points to the inner side of the boundary of the high-pressure air outlet (2); the negative pressure air inlet (1) is round, the ventilation area of the negative pressure air inlet (1) is 0.5-1 square meter, and the ventilation area of the high-pressure air outlet (2) is 1-1.5 square centimeters. The invention has the advantages of good dust removing effect, low cost and suitability for modifying the existing dust removing device.
Description
Technical Field
The invention belongs to the field of elevator production lines, and particularly relates to a dedusting method and device for an elevator cooperative production line.
Background
Along with the development of elevator production technology, the production line of current elevator can be according to the elevator model automatic production corresponding spare part that will order the customer, and the production of spare part mainly relies on various robots to go on, and the transportation of transferring of production line inside is carried out through the material transfer dolly to the spare part that produces, and the transportation speed that transfers of material transfer dolly cooperatees with the production speed of spare part, and the spare part that produces mainly relies on the robot to realize automatic assembly. The elevator production line with the above functions is called an elevator cooperative production line.
There are many welding equipment on elevator cooperative production line, welding equipment can produce the smoke and dust at the during operation, and these smoke and dust not only have toxicity, can cause harm to workman's health, can also lead to the response of some sensors to go wrong (including the sensor trouble that the smoke and dust corrosivity led to makeing mistakes and the mistake that the smoke and dust produced the sensor shelter from), lead to elevator cooperative production line to break down, consequently, the smoke and dust that the welding produced need in time adopt dust collector to handle.
The structure of the existing dust collector comprises an induced draft fan, an air inlet of the induced draft fan is provided with an air inlet pipe, an air outlet of the induced draft fan is provided with an air outlet pipe, the end part of the air inlet pipe is provided with a dust collecting cover, the dust collecting cover is arranged near welding equipment and above a welding point (namely, the welding equipment performs welding operation), one end of the air outlet pipe is connected to a filtering device, and the filtering device is arranged outside a workshop.
In the use process, the dust hood has a certain collecting effect on smoke dust, but the smoke dust contains a plurality of high-density particles such as ferric oxide, manganese oxide, silicon dioxide and the like, and the high-density particles are difficult to enter the dust hood under the negative pressure generated by the induced draft fan, and still part of the high-density particles enter a workshop, the high-density particles enter the dust hood, the temperature of the high-density particles is reduced under the action of air flow, the high-density particles are easy to adhere to the inner wall of the dust hood to form soot, the soot falls down again along with the increase of the thickness, and enter the workshop again, so that the dust removing effect of the conventional dust removing device is poor.
Therefore, the existing dust removing device has the defect of poor dust removing effect.
Disclosure of Invention
The invention aims to provide a dedusting method and device for an elevator cooperative production line. The invention has the advantages of good dust removing effect, low cost and suitability for modifying the existing dust removing device.
The technical scheme of the invention is as follows: a negative pressure air inlet and a plurality of high-pressure air outlets are arranged at a welding device of an elevator cooperative production line, the negative pressure air inlet is positioned above a welding point of the welding device, and the plurality of high-pressure air outlets are circumferentially distributed on the outer side of the welding point.
In the elevator cooperative production line dust removing method, the high-pressure air outlet is in a round shape, the high-pressure air outlet is in a strip shape, and the high-pressure air outlet points to the inner side of the boundary of the high-pressure air outlet.
In the elevator cooperative production line dust removing method, the negative pressure air inlet is round, the ventilation area of the negative pressure air inlet is 0.5-1 square meter, and the ventilation area of the high-pressure air outlet is 1-1.5 square centimeters.
In the elevator cooperative production line dust removing method, a low-pressure air outlet is arranged between the adjacent high-pressure air outlets, the low-pressure air outlet is as high as the welding point, and the high-pressure air outlet is positioned between the low-pressure air outlet and the negative-pressure air inlet in the height direction.
The device for realizing the dust removing method of the elevator cooperative production line comprises an induced draft fan, wherein an air inlet of the induced draft fan is connected with a dust collection cover through an air inlet pipe, a negative pressure air inlet is formed at the bottom of the dust collection cover, the dust collection cover is positioned above a welding point, the induced draft fan is connected with a filtering device through an air outlet pipe, the device also comprises a high-pressure fan, an air outlet of the high-pressure fan is connected with an air gun through a pipeline, the air gun points to the inner side of the edge of the dust collection cover, the air outlet of the air gun forms a high-pressure air outlet, and the high-pressure air outlet is higher than the welding point and is not more than 5cm.
In the device, the air guns are distributed around the axis of the dust hood, the upper ends of the air guns incline inwards, the pipeline is annular, the air guns are fixed on the upper part of the pipeline, and the outer side wall of the pipeline is provided with a switching pipe connected with the high-pressure fan.
In the device, a partition plate is arranged in the pipeline, an inner air passage is formed in the outer side of the partition plate, an outer air passage is formed in the outer side of the partition plate, the air gun and the transfer tube are connected with the outer air passage, a plurality of pressure reducing holes are formed in the partition plate, the pressure reducing holes are formed between the adjacent air guns, a plurality of strip-shaped low-pressure air outlets are formed in the inner side of the pipeline, the low-pressure air outlets are located in the inner sides of the corresponding pressure reducing holes, and the low-pressure air outlets are equal in height to the pressure reducing holes or lower than welding points.
In the device, one side of the pressure reducing hole is provided with a speed reducing plate fixed with the pipeline.
In the device, the air gun is in a taper pipe shape, and the upper end of the air gun is flattened to form a flat opening.
Compared with the prior art, the high-pressure air outlet is arranged on the outer side of the welding point on the basis of the existing dust removing device, the high-pressure air outlet emits high-speed air flow to the dust collecting cover, a relatively closed-loop air curtain is formed below the dust collecting cover, kinetic energy is provided for smoke dust which is about to escape from the range of the dust collecting cover, the smoke dust reenters the dust collecting cover, the dust removing effect is improved, the high-speed air flow emitted by the high-pressure air outlet directly acts on the inner wall of the dust collecting cover, the adhesion of the smoke dust on the inner wall of the dust collecting cover is avoided, formed smoke scale is avoided, the smoke scale is prevented from entering a workshop, and the dust removing effect is further improved.
Further, the applicant found that the reason for the poor dust removal effect of the existing dust removal device is that, in order to avoid the mechanical arm of the welding device, the height of the dust collection cover is relatively high (about 1.2 m), the distance between the dust collection cover and the welding point is relatively long, so that the suction force of the dust collection cover is difficult to provide enough lifting force for the smoke dust, and the smoke dust is difficult to basically enter the dust collection cover. Therefore, the invention sets a plurality of low-pressure air outlets distributed circumferentially outside the welding point, the air outlets jet low-speed air flow to the welding point, the low-speed air flow is converged at the welding point to form upward air flow, thereby providing lift force for smoke dust, ensuring that the smoke dust basically enters the dust hood, and improving the dust removal effect.
The invention has simple structure and low cost, and the structure of the existing dust removing device is not changed on the basis of improving the dust removing effect, so the invention is suitable for the reconstruction of the existing dust removing device.
Therefore, the invention has the advantages of good dust removing effect, low cost and suitability for modifying the existing dust removing device.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is an enlarged view of fig. 1 at a.
Fig. 3 is a schematic top view of a pipe.
The marks in the drawings are: 1-negative pressure air inlet, 2-high pressure air outlet, 3-welding point, 4-low pressure air outlet, 5-induced draft fan, 6-air inlet pipe, 7-dust collecting cover, 8-air outlet pipe, 9-filter device, 10-high pressure fan, 11-pipeline, 12-air gun, 13-transfer tube, 14-baffle, 15-inner air passage, 16-outer air passage, 17-decompression hole, 18-speed reducer.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples. A negative pressure air inlet 1 and a plurality of high-pressure air outlets 2 are arranged at a welding device of an elevator cooperative production line, the negative pressure air inlet 1 is positioned above a welding point 3 of the welding device, and the plurality of high-pressure air outlets 2 are circumferentially distributed on the outer side of the welding point 3.
The high-pressure air outlet 2 is in a round surface shape, the high-pressure air outlet 2 is in a strip shape, and the high-pressure air outlet 2 points to the inner side of the boundary of the high-pressure air outlet 2.
The negative pressure air inlet 1 is round, the ventilation area of the negative pressure air inlet 1 is 0.5-1 square meter, and the ventilation area of the high-pressure air outlet 2 is 1-1.5 square centimeters.
A low-pressure air outlet 4 is arranged between the adjacent high-pressure air outlets 2, the low-pressure air outlet 4 is as high as the welding point 3, and the high-pressure air outlet 2 is positioned between the low-pressure air outlet 4 and the negative-pressure air inlet 1 in the height direction.
The device for realizing the dust removing method comprises an induced draft fan 5, wherein an air inlet of the induced draft fan 5 is connected with a dust collecting cover 7 through an air inlet pipe 6, the bottom area of the dust collecting cover 7 is 0.5-1 square meter, a negative pressure air inlet 1 is formed at the bottom of the dust collecting cover 7, the dust collecting cover 7 is positioned above a welding point 3, and the induced draft fan 5 is connected with a filtering device 9 through an air outlet pipe 8.
The air guns 12 are distributed around the axis of the dust hood 7, the upper ends of the air guns 12 incline inwards, the pipeline 11 is annular, the air guns 12 are fixed on the upper part of the pipeline 11, and the outer side wall of the pipeline 11 is provided with a switching pipe 13 connected with the high-pressure fan 10.
The air gun is characterized in that a partition plate 14 is arranged in the pipeline 11, an inner air passage 15 is formed in the outer side of the partition plate 14, an outer air passage 16 is formed in the outer side of the partition plate 14, the air gun 12 and the switching tube 13 are connected with the outer air passage 16, a plurality of pressure reducing holes 17 are formed in the partition plate 14, the ventilation area of each pressure reducing hole 17 is 0.5-0.8 square centimeter, each pressure reducing hole 17 is located between every two adjacent air guns 12, a plurality of long-strip-shaped low-pressure air outlets 4 are formed in the inner side of the pipeline 11, the width of each low-pressure air outlet 4 is 4-6mm, the length of each low-pressure air outlet 4 is 5-10cm, each low-pressure air outlet 4 is located in the corresponding pressure reducing hole 17, and the low-pressure air outlets 4 are equal to the welding points 3 or lower than the welding points 3.
One side of the pressure reducing hole 17 is provided with a speed reducing plate 18 fixed with the pipeline 11.
The air gun 12 is in a cone shape, the upper end of the air gun 12 is flattened to form a flat opening, the ventilation area of the flat opening is 1-1.5 square centimeters, and the width of the flat opening is 5 millimeters.
Working principle: the induced draft fan 5 generates air flow, and the smoke dust in the dust collecting cover 7 enters the filtering device 9 through the air inlet pipe 6 and the air outlet pipe 8.
The high-pressure fan 10 works to generate high-speed air flow, the high-speed air flow enters the outer air passage 16 through the transfer tube 13, a part of the high-speed air flow is ejected out through the air guns 12, and a closed-loop air curtain is formed under the action of the air guns 12, so that the high-pressure fan can play a role in interception and prevent smoke dust from escaping; the other part of high-speed air flow enters the inner air passage 15 through the decompression holes 17, and as the area of the low-pressure air outlet 4 is far larger than that of the decompression holes 17, the pressure of the air flow is reduced after the air flow enters the inner air passage 15, the speed of the air flow emitted from the low-pressure air outlet 4 is reduced, the air flows from the decompression holes 17 are converged at the welding points 3 to form upward air flow, so that lift force is provided for smoke dust, and the smoke dust is ensured to basically enter the dust collecting cover. The low-speed air flow from the low-pressure air outlet 4 is used for providing lift force for the smoke dust, so that the smoke dust can be prevented from being blown away, the smoke dust is prevented from breaking through the blocking of the air curtain, and the dust removing effect is improved. The partition plate 14 serves to reduce the inertia of the high-speed air flow from the pressure reducing hole 17, and to make the low-pressure air outlet 4 uniformly and slowly air-out without directly discharging from the low-pressure air outlet 4.
Comparative example 1. Existing dust removal devices.
Comparative example 2. The low-pressure outlet 4 was eliminated on the basis of example 1.
Comparative example 3. On the basis of example 1, the air gun 12 was omitted.
The results of the following Table 1 were obtained by measuring the smoke concentration of the welding spot at a horizontal distance of 1.5 m.
| Examples | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Smoke concentration (ppm) | 2.4 | 15.2 | 3.7 | 11.9 |
Table 1.
Claims (7)
1. The utility model provides an elevator is production line dust collector in coordination, includes draught fan (5), and dust collecting cover (7) are connected through air-supply line (6) to the air intake of draught fan (5), and negative pressure air inlet (1) are formed to the bottom of dust collecting cover (7), and negative pressure air inlet (1) set up the welding equipment department at elevator is production line in coordination, and dust collecting cover (7) are located the top of welding equipment's welding point (3), and filter equipment (9) are connected through air-out pipe (8) in draught fan (5), its characterized in that: the high-pressure fan (10) is further included, an air outlet of the high-pressure fan (10) is connected with a plurality of air guns (12) through pipelines (11), the air guns (12) point to the inner side of the edge of the dust hood (7), the air outlets of the air guns (12) form high-pressure air outlets (2), the plurality of high-pressure air outlets (2) are all arranged at welding equipment of the elevator cooperative production line, the plurality of high-pressure air outlets (2) are circumferentially distributed on the outer side of the welding point (3), and the high-pressure air outlets (2) are higher than the welding point (3) and are not more than 5cm;
be equipped with baffle (14) in pipeline (11), the inboard of baffle (14) forms interior air flue (15), and the outside of baffle (14) forms outer air flue (16), outer air flue (16) are all connected to air gun (12) and switching pipe (13), are equipped with a plurality of relief holes (17) on baffle (14), and relief hole (17) are located between adjacent air gun (12), and the inboard of pipeline (11) is equipped with a plurality of rectangular low pressure air outlet (4), and low pressure air outlet (4) are located the inboard of corresponding relief hole (17), and low pressure air outlet (4) are equal high or are less than welding point (3) with welding point (3).
2. The apparatus according to claim 1, wherein: the high-pressure air outlet (2) is in a round shape, the high-pressure air outlet (2) is in a strip shape, and the high-pressure air outlet (2) points to the inner side of the boundary of the negative-pressure air inlet (1).
3. The apparatus according to claim 1, wherein: the negative pressure air inlet (1) is round, the ventilation area of the negative pressure air inlet (1) is 0.5-1 square meter, and the ventilation area of the high-pressure air outlet (2) is 1-1.5 square centimeters.
4. The apparatus according to claim 1, wherein: the low-pressure air outlet (4) is arranged between the adjacent high-pressure air outlets (2), the low-pressure air outlet (4) is as high as the welding point (3), and the high-pressure air outlet (2) is positioned between the low-pressure air outlet (4) and the negative-pressure air inlet (1) in the height direction.
5. The apparatus according to claim 1, wherein: the air guns (12) are distributed around the axis of the dust hood (7), the upper ends of the air guns (12) incline inwards, the pipeline (11) is annular, the air guns (12) are fixed on the upper part of the pipeline (11), and the outer side wall of the pipeline (11) is provided with a switching pipe (13) connected with the high-pressure fan (10).
6. The apparatus according to claim 1, wherein: one side of the pressure reducing hole (17) is provided with a speed reducing plate (18) fixed with the pipeline (11).
7. The apparatus according to claim 1, wherein: the air gun (12) is cone-shaped, and the upper end of the air gun (12) is flattened to form a flat opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210402013.6A CN114602922B (en) | 2022-04-18 | 2022-04-18 | Dedusting method and device for elevator cooperative production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210402013.6A CN114602922B (en) | 2022-04-18 | 2022-04-18 | Dedusting method and device for elevator cooperative production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114602922A CN114602922A (en) | 2022-06-10 |
| CN114602922B true CN114602922B (en) | 2024-01-09 |
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ID=81868679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210402013.6A Active CN114602922B (en) | 2022-04-18 | 2022-04-18 | Dedusting method and device for elevator cooperative production line |
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| Country | Link |
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| CN (1) | CN114602922B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1345442A (en) * | 1972-06-14 | 1974-01-30 | Imp Metals Ind Kynoch Ltd | Gas-fired water heating applinances |
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| CN104492599A (en) * | 2014-12-08 | 2015-04-08 | 沈阳航空航天大学 | Treatment method of graphite dust |
| CN204455164U (en) * | 2015-03-16 | 2015-07-08 | 河北联合大学 | Blast furnace metal taphole suction hood |
| JP2015206330A (en) * | 2014-04-23 | 2015-11-19 | 日野自動車株式会社 | Two-stage turbocharger system |
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| CN206730758U (en) * | 2017-05-22 | 2017-12-12 | 郑州洁普智能环保技术有限公司 | Negative pressure dust removing device |
| CN210280042U (en) * | 2019-07-25 | 2020-04-10 | 湖南中烟工业有限责任公司 | Photoelectric foreign matter removing system with air curtain dust removal type window glass cleaning device |
| CN211562160U (en) * | 2019-12-17 | 2020-09-25 | 苏州菲泰科过滤技术有限公司 | Air curtain type dust remover |
| CN212079376U (en) * | 2020-04-23 | 2020-12-04 | 河南焦煤能源有限公司九里山矿 | Dust removing device |
-
2022
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1345442A (en) * | 1972-06-14 | 1974-01-30 | Imp Metals Ind Kynoch Ltd | Gas-fired water heating applinances |
| EP0118570A2 (en) * | 1983-02-08 | 1984-09-19 | Hannelore Röhl-Hager | Extracting hood with air circulation |
| KR20000025791A (en) * | 1998-10-14 | 2000-05-06 | 구자홍 | Exhaust structure of gas oven |
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| CN204455164U (en) * | 2015-03-16 | 2015-07-08 | 河北联合大学 | Blast furnace metal taphole suction hood |
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| CN211562160U (en) * | 2019-12-17 | 2020-09-25 | 苏州菲泰科过滤技术有限公司 | Air curtain type dust remover |
| CN212079376U (en) * | 2020-04-23 | 2020-12-04 | 河南焦煤能源有限公司九里山矿 | Dust removing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114602922A (en) | 2022-06-10 |
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