CN110449437B - Double-layer smoke dust collecting cover and using method thereof - Google Patents
Double-layer smoke dust collecting cover and using method thereof Download PDFInfo
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- CN110449437B CN110449437B CN201910823153.9A CN201910823153A CN110449437B CN 110449437 B CN110449437 B CN 110449437B CN 201910823153 A CN201910823153 A CN 201910823153A CN 110449437 B CN110449437 B CN 110449437B
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- 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
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- 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
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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Abstract
The invention relates to a double-layer smoke dust collecting cover and a use method thereof, wherein the double-layer smoke dust collecting cover comprises an upper cover body and a lower cover body, a hanging hole suitable for hanging process equipment is formed in the top of the lower cover body, the upper cover body comprises a fixed smoke cover and a movable smoke cover, the fixed smoke cover is fixedly arranged on the top of the lower cover body and is connected with a dust removing pipeline, and the movable smoke cover is movably arranged on the top of the lower cover body so as to have a working state of being covered on the hanging hole and communicated with the fixed smoke cover and a non-working state deviating from the hanging hole. The double-layer smoke dust collecting cover provided by the invention is characterized in that the collecting cover is arranged in a layered manner, the upper cover body adopts a structure that the fixed smoke cover is matched with the movable smoke cover, and the movable smoke cover is switched between a working state and a non-working state, so that the working condition requirements of hoisting and overhauling of process equipment can be met, and smooth expansion of production and overhauling is ensured.
Description
Technical Field
The invention belongs to the technical field of dust removal, and particularly relates to a double-layer smoke dust collecting cover and a use method thereof.
Background
In the production process in the fields of steel, chemical industry and the like, a large amount of smoke dust is often generated, and in order to protect operators from smoke dust harm and reduce pollution to the environment, a smoke dust collecting cover is required to be arranged at each smoke dust generating place. Because some dust emission devices produce more dust, a larger dust hood is required to cover the whole process dust production device for capturing dust, but after the dust production device is covered completely, the process device cannot be overhauled and hoisted by adopting hoisting equipment in a factory building. In addition, because the volume is bigger in the large-scale smoke trapping cover, the air extraction quantity of different areas in the smoke cover is difficult to control, and the smoke trapping effect is poor.
Disclosure of Invention
The embodiment of the invention relates to a double-layer smoke dust collecting cover and a use method thereof, which can at least solve part of defects in the prior art.
The embodiment of the invention relates to a double-layer smoke dust collecting cover, which comprises an upper cover body and a lower cover body, wherein a hanging hole suitable for hanging process equipment is formed in the top of the lower cover body, the upper cover body comprises a fixed smoke cover and a movable smoke cover, the fixed smoke cover is fixedly arranged on the top of the lower cover body and is connected with a dust removing pipeline, and the movable smoke cover is movably arranged on the top of the lower cover body so as to have a working state of being covered on the hanging hole and communicated with the fixed smoke cover and a non-working state deviating from the hanging hole.
As one of the embodiments, the movable hood is slidably arranged on the top of the lower hood body and is provided with a hood horizontal sliding driving mechanism.
As one of the embodiments, in the horizontal sliding direction of the movable hood, the length of the lower hood body is greater than that of the upper hood body, and the non-working position of the movable hood is located at one side of the hanging hole away from the fixed hood.
As one of the embodiments, in the horizontal sliding direction of the movable hood, the length of the lower hood is not greater than the length of the upper hood, and in the non-working state, the movable hood is contained in the fixed hood or the fixed hood is contained in the movable hood.
As one of the embodiments, the hood cavity of the fixed hood and the hood cavity of the lower hood body are separated by an air draft baffle plate, and the air draft baffle plate is provided with an air draft hole.
As one of the embodiments, the air draft baffle comprises a fixed plate and a movable plate which are arranged in a stacked manner, the fixed plate and the movable plate are respectively provided with a plurality of air draft holes, the movable plate is arranged on the side plate of the fixed smoke hood or on the side plate of the lower cover body, and the movable plate is connected with a baffle push-pull driving mechanism so that the overlapping area of the movable plate and the air draft holes on the fixed plate is adjustable.
As one of the embodiments, the air extraction partition plate comprises a fixed plate and a movable plate which are arranged in a stacked manner, a plurality of air extraction holes are formed in the fixed plate, the movable plate is arranged on the side plate of the fixed smoke hood or on the side plate of the lower cover body, the movable plate is divided into a plurality of adjusting sub-plates, and each adjusting sub-plate is connected with a sub-plate push-pull driving unit so that the position of air extraction on the fixed plate can be adjusted.
The embodiment of the invention also relates to a use method of the double-layer smoke dust collecting cover, which comprises the following steps:
when smoke dust is required to be trapped, the movable smoke hood is positioned at the working position of the movable smoke hood, and the smoke dust trapped by the lower cover body can enter the dust removing pipeline through the movable smoke hood and the fixed smoke hood;
when the process equipment in the trapping cover needs to be overhauled, the movable smoke cover is positioned at a non-working position, and the lifting equipment can lift the process equipment through the lifting hole on the lower cover body.
As one of the embodiments, the using method further includes:
the hood cavity of the fixed hood and the hood cavity of the lower hood body are separated by an exhaust baffle plate,
the air draft passage area on the air draft baffle plate is adjusted so as to adjust the air quantity distribution of the air draft from the bottom of the movable smoke hood and the air quantity of the air draft from the bottom of the fixed smoke hood.
As one of the embodiments, the using method further includes:
the hood cavity of the fixed hood and the hood cavity of the lower hood body are separated by an exhaust baffle plate,
the position of an air suction channel on the air suction baffle plate is adjusted, so that the air suction quantity of different areas in the capturing cover is controlled.
The embodiment of the invention has at least the following beneficial effects:
the double-layer smoke dust collecting cover provided by the invention is characterized in that the collecting cover is arranged in a layered manner, the upper cover body adopts a structure that the fixed smoke cover is matched with the movable smoke cover, and the movable smoke cover is switched between a working state and a non-working state, so that the working condition requirements of hoisting and overhauling of process equipment can be met, and smooth expansion of production and overhauling is ensured.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic top view of a dual layer soot trap cover according to an embodiment of the present invention;
FIG. 2 is a view in the direction A of FIG. 1;
FIG. 3 is a schematic view of the movable hood of FIG. 2 in a non-operative position;
fig. 4 is a cross-sectional view taken along A-A of fig. 2.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-3, an embodiment of the present invention provides a double-layer smoke dust capturing hood, which comprises an upper layer hood body 2 and a lower layer hood body 1, wherein a hanging hole 11 suitable for hanging process equipment is formed in the top of the lower layer hood body 1, the upper layer hood body 2 comprises a fixed smoke hood 22 and a movable smoke hood 21, the fixed smoke hood 22 is fixedly installed on the top of the lower layer hood body 1 and is connected with a dust removing pipeline 3, and the movable smoke hood 21 is movably arranged on the top of the lower layer hood body 1 so as to have a working state of being covered on the hanging hole 11 and communicated with the fixed smoke hood 22 and a non-working state deviating from the hanging hole 11.
Wherein the movable hood 21 is movable/switchable between a working position and a non-working position, and is rotatably mounted on the lower hood 1, in a preferred embodiment, the movable hood 21 is slidably mounted on the lower hood 1 and is horizontally slidable relative to the fixed hood 22 so as to be close to or far from the hanging hole 11, and accordingly, the movable hood 21 is slidably disposed on top of the lower hood 1 and is provided with a hood horizontal sliding driving mechanism.
The lower cover 1 is preferably adapted to house process equipment therein; in one embodiment, the lower cover 1 is a square cover, i.e. the horizontal cross section of the lower cover is square, and includes four side plates, wherein two side plates are first X-direction side plates, and the other two side plates are first Y-direction side plates, for example, wherein two first X-direction side plate surfaces are parallel to the horizontal sliding direction of the movable hood 21, and two first Y-direction side plate surfaces are perpendicular to the horizontal sliding direction of the movable hood 21.
The upper cover 2 is also preferably a square cover, that is, the movable hood 21 and the fixed hood 22 are square covers, wherein the movable hood 21 comprises a top plate, two second X-direction side plates and a second Y-direction side plate, and when the movable hood 21 is in its working position, the second Y-direction side plate is located at one end of the movable hood 21 far away from the fixed hood 22; the fixed hood 22 comprises a top plate and two third X-direction side plates, one end of the fixed hood 22 is used for being in butt joint communication with the movable hood 21, and the other end of the fixed hood 22 is used for being connected with the dust removing pipeline 3.
Based on the structure that the fixed hood 22 is a square hood body, as shown in fig. 1-3, the dust removing pipeline 3 comprises a main pipe section 31 and a transition section 32, wherein the transition section 32 is a dome-shaped square pipe, the square end of the transition section is connected with the fixed hood 22, and the round end of the transition section is connected with the main pipe section 31.
For the structure that the movable hood 21 is slidably disposed at the top of the lower hood 1, a slide rail is correspondingly disposed at the top of the lower hood 1, and a running mechanism is disposed at the bottom of the movable hood 21, where the existing running mechanism is applicable to the embodiment, for example, a roller running mechanism driven by a motor, and the specific structure is not described herein.
In one embodiment, as shown in fig. 2 and 3, in the inactive position, the movable hood 21 and the fixed hood 22 are separated on both sides of the hanging hole 11, and then, in the horizontal sliding direction of the movable hood 21, the length of the lower hood 1 is greater than that of the upper hood 2, and the inactive position of the movable hood 21 is located on the side of the hanging hole 11 away from the fixed hood 22. That is, the length of the first X-direction side plate is larger than the sum of the lengths of the second X-direction side plate and the third X-direction side plate, and more preferably not smaller than the sum of the lengths of the third X-direction side plate and twice the second X-direction side plate. In this embodiment, the heights of the movable hood 21 and the fixed hood 22 are preferably the same, and the butt joint sealing effect of the movable hood 21 and the fixed hood 22 is good. Wherein, the lower floor cover body 1 top that is located hanging hole 11 and keeps away from fixed petticoat pipe 22 one side all seals the setting, guarantees the smoke and dust entrapment effect.
In another embodiment, in the non-working position, the movable hood 21 and the fixed hood 22 are located on the same side of the hanging hole 11, and then, in the horizontal sliding direction of the movable hood 21, the length of the lower hood 1 is not greater than the length of the upper hood 2, and in the non-working state, the movable hood 21 is accommodated in the fixed hood 22 or the fixed hood 22 is accommodated in the movable hood 21. This embodiment is particularly suitable for the case where the overall size of the capturing cover is limited or the required hanging hole 11 is large in size. In order to ensure the tightness of the butt joint between the movable hood 21 and the fixed hood 22 when the smoke dust is trapped, dust blocking plates can be respectively arranged at the butt joint ends of the movable hood 21 and the fixed hood 22, wherein a first dust blocking plate on the movable hood 21 is arranged on the inner wall of the movable hood and extends downwards, a second dust blocking plate on the fixed hood 22 is arranged on the outer wall of the movable hood and extends upwards, and when the movable hood 21 slides to a working position, the two dust blocking plates splice and block gaps between the two hood, or the two dust blocking plates form a labyrinth sealing structure (the bottom end of the first dust blocking plate is positioned below the top end of the second dust blocking plate).
The double-deck smoke and dust entrapment cover that this embodiment provided sets up the entrapment cover layering to upper cover body 2 adopts fixed petticoat pipe 22 and movable petticoat pipe 21 complex structure, switches between operating condition and non-operating condition through movable petticoat pipe 21, can satisfy the operating mode requirement that process equipment hoist and mount overhauld, guarantees the smooth expansion of production, maintenance.
Further optimizing the above embodiment, as shown in fig. 4, the hood cavity of the fixed hood 22 is separated from the hood cavity of the lower hood body 1 by an air draft partition board 4, and the air draft partition board 4 is provided with an air draft hole 41. Of the smoke entering the stationary smoke cage 22, a part enters through the movable smoke cage 21, and another part enters through the air draft channel on the air draft partition 4.
The embodiment of the invention also provides a use method of the double-layer smoke dust collecting cover, which comprises the following steps:
when the smoke dust is required to be trapped, the movable smoke hood 21 is positioned at the working position, and the smoke dust trapped by the lower-layer hood body 1 can enter the dust removing pipeline 3 through the movable smoke hood 21 and the fixed smoke hood 22;
when the process equipment in the trapping hood needs to be overhauled, the movable hood 21 is positioned at a non-working position, and the lifting and hoisting equipment can hoist the process equipment through the lifting hole 11 on the lower-layer hood body 1.
Further preferably, the using method further comprises: the air suction passage area on the air suction baffle plate 4 is adjusted so as to adjust the air quantity distribution of the air quantity extracted from the bottom of the movable hood 21 and the air quantity extracted from the bottom of the fixed hood 22.
Further preferably, the using method further comprises: the position of the air suction channel on the air suction baffle plate 4 is adjusted, so that the air suction quantity of different areas in the capturing cover is controlled.
By the method, the exhaust amount of different areas in the trapping cover can be guided, so that main exhaust capacity can be concentrated to the area with the most serious smoke emission according to the need, and the smoke trapping efficiency and effect are improved.
The adjustment of the area and the position of the air suction passage on the air suction baffle plate 4 can be carried out during maintenance; in other embodiments, online adjustments may be made. A preferred adjustment structure is provided below, in particular:
(1) The exhaust baffle 4 comprises a fixed plate and a movable plate which are arranged in a stacked manner, the fixed plate and the movable plate are respectively provided with a plurality of exhaust holes 41, the movable plate is arranged on the side plate of the fixed smoke hood 22 or on the side plate of the lower cover body 1, and the movable plate is connected with a baffle push-pull driving mechanism so that the overlapping area of the movable plate and the exhaust holes 41 on the fixed plate is adjustable. The baffle push-pull driving mechanism is arranged outside the trapping cover, for example, is fixedly arranged on the lower cover body 1 or is fixedly arranged on the fixed smoke cover 22, and can be in the modes of an air cylinder, a hydraulic cylinder, a gear rack and motor matching structure and the like. The movable plate is preferably positioned above the fixed plate, so that the sliding movement of the movable plate is safe and stable.
The fixed plate and the movable plate are preferably arranged in one-to-one correspondence with the same number of the air suction holes 41. In the initial condition, the fixed plate is opposite to the exhaust holes 41 on the movable plate one by one, and the exhaust passage area on the exhaust baffle plate 4 is the largest. When the air draft passage area is required to be regulated, the movable plate is horizontally pushed and pulled, so that the air draft holes 41 on the movable plate are dislocated with the air draft holes 41 on the fixed plate, and the larger the dislocation amount is, the smaller the air draft passage area on the air draft partition plate 4 is.
(2) The exhaust baffle 4 comprises a fixed plate and a movable plate which are arranged in a stacked manner, a plurality of exhaust holes 41 are formed in the fixed plate, the movable plate is arranged on a side plate of the fixed smoke hood 22 or on a side plate of the lower cover body 1, the movable plate is divided into a plurality of adjusting sub-plates, and each adjusting sub-plate is connected with a sub-plate push-pull driving unit so that the position of exhaust on the fixed plate can be adjusted.
Also preferably, the movable plate is positioned above the fixed plate, so that the sliding movement of the movable plate is safe and stable. Each sub-board push-pull driving unit is arranged outside the trapping cover, for example, is fixedly arranged on the lower cover body 1 or is fixedly arranged on the fixed smoke cover 22, and can be in the modes of an air cylinder, a hydraulic cylinder, a gear rack and motor matching structure and the like.
In one embodiment, the adjustment sub-plates are arranged in sequence along the horizontal sliding direction of the movable hood 21.
In one embodiment, the adjusting sub-board is not provided with the air extraction hole 41, and according to the working condition requirement, the adjusting sub-board in the corresponding area is selected to be inserted into the cover body to block the air extraction hole 41 in the corresponding area of the fixed board, or the adjusting sub-board in the corresponding area is pulled out of the cover body to open the air extraction hole 41 in the corresponding area of the fixed board, and further the air extraction channel area in the corresponding area of the fixed board can be controlled by controlling the pulling-out amount of the adjusting sub-board.
In another example, the movable plate in the embodiment (1) is used as the movable plate, and the movable plate is divided into a plurality of adjusting sub-plates, so that the adjustment of the area and the position of the suction passage on the suction partition plate 4 can be simultaneously realized, and the adjustment effect is good.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. A double-deck smoke and dust entrapment cover which characterized in that: the dust removing device comprises an upper cover body and a lower cover body, wherein a hanging hole suitable for hanging process equipment is formed in the top of the lower cover body, the upper cover body comprises a fixed smoke hood and a movable smoke hood, the fixed smoke hood is fixedly arranged at the top of the lower cover body and is connected with a dust removing pipeline, and the movable smoke hood is movably arranged at the top of the lower cover body so as to have a working state of being covered on the hanging hole and communicated with the fixed smoke hood and a non-working state deviating from the hanging hole;
the movable smoke hood is arranged at the top of the lower cover body in a sliding way and is provided with a smoke hood horizontal sliding driving mechanism;
the hood cavity of the fixed hood is separated from the hood cavity of the lower hood body by an air draft baffle plate, and the air draft baffle plate is provided with an air draft hole.
2. The dual layer soot trapping cover of claim 1, wherein: in the horizontal sliding direction of the movable hood, the length of the lower hood body is greater than that of the upper hood body, and the non-working position of the movable hood is located on one side of the hanging hole away from the fixed hood.
3. The dual layer soot trapping cover of claim 1, wherein: in the horizontal sliding direction of the movable hood, the length of the lower hood body is not greater than that of the upper hood body, and in the non-working state, the movable hood is contained in the fixed hood or the fixed hood is contained in the movable hood.
4. The dual layer soot trapping cover of claim 1, wherein: the exhaust baffle comprises a fixed plate and a movable plate which are arranged in a stacked mode, a plurality of exhaust holes are formed in the fixed plate and the movable plate, the movable plate is arranged on a side plate of the fixed smoke hood or on a side plate of the lower cover body, and the movable plate is connected with a baffle push-pull driving mechanism so that the overlapping area of the movable plate and the exhaust holes in the fixed plate is adjustable.
5. The dual layer soot trapping cover of claim 1 or 4, wherein: the exhaust baffle comprises a fixed plate and a movable plate which are arranged in a stacked mode, a plurality of exhaust holes are formed in the fixed plate, the movable plate is arranged on a side plate of the fixed smoke hood or a side plate of the lower cover body, the movable plate is divided into a plurality of adjusting sub-plates, and each adjusting sub-plate is connected with a sub-plate push-pull driving unit so that the position of exhaust on the fixed plate can be adjusted.
6. The method of using a double layer soot trapping cap according to any one of claims 1 to 5, comprising:
when smoke dust is required to be trapped, the movable smoke hood is positioned at the working position of the movable smoke hood, and the smoke dust trapped by the lower cover body can enter the dust removing pipeline through the movable smoke hood and the fixed smoke hood;
when the process equipment in the trapping cover needs to be overhauled, the movable smoke cover is positioned at a non-working position, and the lifting equipment can lift the process equipment through the lifting hole on the lower cover body.
7. The method of using a double layer soot trapping cap of claim 6, further comprising:
the hood cavity of the fixed hood and the hood cavity of the lower hood body are separated by an exhaust baffle plate,
the air draft passage area on the air draft baffle plate is adjusted so as to adjust the air quantity distribution of the air draft from the bottom of the movable smoke hood and the air quantity of the air draft from the bottom of the fixed smoke hood.
8. The method of using a double layer soot trapping cap according to claim 6 or 7, further comprising:
the hood cavity of the fixed hood and the hood cavity of the lower hood body are separated by an exhaust baffle plate,
the position of an air suction channel on the air suction baffle plate is adjusted, so that the air suction quantity of different areas in the capturing cover is controlled.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910823153.9A CN110449437B (en) | 2019-09-02 | 2019-09-02 | Double-layer smoke dust collecting cover and using method thereof |
| PCT/CN2019/106455 WO2021042412A1 (en) | 2019-09-02 | 2019-09-18 | Double-layer flue dust collecting hood and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910823153.9A CN110449437B (en) | 2019-09-02 | 2019-09-02 | Double-layer smoke dust collecting cover and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110449437A CN110449437A (en) | 2019-11-15 |
| CN110449437B true CN110449437B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910823153.9A Active CN110449437B (en) | 2019-09-02 | 2019-09-02 | Double-layer smoke dust collecting cover and using method thereof |
Country Status (2)
| Country | Link |
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| CN (1) | CN110449437B (en) |
| WO (1) | WO2021042412A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331119B (en) * | 2020-04-03 | 2021-04-30 | 马钢集团设计研究院有限责任公司 | Primary and secondary type movable dust hood vehicle for steelmaking environment and dust removal method |
| CN113578906A (en) * | 2020-04-30 | 2021-11-02 | 浙江华晟金属制品有限公司 | Dust removal equipment with novel smoke dust collecting cover with telescopic top cover |
| CN114985407B (en) * | 2022-06-22 | 2023-11-10 | 苏州汉特环保工程有限公司 | Waste gas recovery auxiliary device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2855840B2 (en) * | 1990-10-15 | 1999-02-10 | 石川島播磨重工業株式会社 | Waste transshipment facility |
| JPH09295129A (en) * | 1996-04-30 | 1997-11-18 | Sanyo Special Steel Co Ltd | High efficient dust collecting device at the time of removing of slag |
| CN2920457Y (en) * | 2006-06-08 | 2007-07-11 | 中钢集团天澄环保科技股份有限公司 | Portable dust collecting cage for overhead crane |
| CN100577820C (en) * | 2008-01-30 | 2010-01-06 | 中冶华天工程技术有限公司 | Mobile smoke blast trapping device for furnace mixer |
| CN201183805Y (en) * | 2008-04-28 | 2009-01-21 | 中冶华天工程技术有限公司 | Bidirectional moving combined type smoke dust trapping cover |
| CN201329362Y (en) * | 2008-12-30 | 2009-10-21 | 沈阳远大环境工程有限公司 | Moving top-draft soot collector travelling on vertical railway |
| CN202052750U (en) * | 2011-04-02 | 2011-11-30 | 中冶华天工程技术有限公司 | Smoke dust collecting device |
| CN202090008U (en) * | 2011-05-20 | 2011-12-28 | 中冶华天工程技术有限公司 | Top draft hood for blast furnace casting house |
| CN202893782U (en) * | 2012-11-14 | 2013-04-24 | 无锡幸运环保设备有限公司 | Movable flue gas trapping cover for cutting of large workpieces |
| CN106862221A (en) * | 2017-02-27 | 2017-06-20 | 东方电气集团东方汽轮机有限公司 | A kind of heavy castings clear up the efficient capturing device of flue dust |
| CN107876532A (en) * | 2017-11-17 | 2018-04-06 | 吉林建龙钢铁有限责任公司 | A kind of dust arrester |
| CN208555442U (en) * | 2018-04-14 | 2019-03-01 | 苏州贝捷环保设备有限公司 | A kind of fume treatment dust suction hood |
| CN209222884U (en) * | 2018-12-12 | 2019-08-09 | 马鞍山市致呈机电有限公司 | A kind of movable-type intelligent dust collection cover |
| CN210788550U (en) * | 2019-09-02 | 2020-06-19 | 中冶南方工程技术有限公司 | Double-layer smoke dust collecting cover |
-
2019
- 2019-09-02 CN CN201910823153.9A patent/CN110449437B/en active Active
- 2019-09-18 WO PCT/CN2019/106455 patent/WO2021042412A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN110449437A (en) | 2019-11-15 |
| WO2021042412A1 (en) | 2021-03-11 |
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