CN113101766A - Multi-cavity-matched separating mechanism and dust removal integrated box based on same - Google Patents
Multi-cavity-matched separating mechanism and dust removal integrated box based on same Download PDFInfo
- Publication number
- CN113101766A CN113101766A CN202110335729.4A CN202110335729A CN113101766A CN 113101766 A CN113101766 A CN 113101766A CN 202110335729 A CN202110335729 A CN 202110335729A CN 113101766 A CN113101766 A CN 113101766A
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- Prior art keywords
- dust
- filter
- box
- cartridge
- separation unit
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Links
- 239000000428 dust Substances 0.000 title claims abstract description 112
- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 238000000926 separation method Methods 0.000 claims description 48
- 230000009194 climbing Effects 0.000 claims description 14
- 230000010354 integration Effects 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 229920000742 Cotton Polymers 0.000 abstract description 9
- 238000001914 filtration Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 description 13
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
-
- 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
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- 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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
-
- 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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- 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
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a separating mechanism matched with multiple cavities and a dust removal integrated box based on the same, wherein the separating mechanism comprises: a one-level separating element and second grade separating element for separating dust in the air, air in the second cartridge filter upwards inputs the discharge line through the attraction of fan in, the outer lane of second cartridge filter is provided with the cotton fold strip of multiunit, air is through cotton fold strip by the little particulate impurity of filtering, be provided with the division board between two sets of second cartridge filters, the dust can not fall into on an adjacent set of second cartridge filter through the blockking of division board when the adsorbed dust in the second cartridge filter is cleared up, and can be directly blown into in the second dust collecting box of its below, the clear dust of second cartridge filter is provided with high pressure and blows stifled mechanism in upper portion usually, blow the hollow position at the second cartridge filter through the high-pressure gas who adjusts, will adsorb the dust on second cartridge filter surface and blow down.
Description
Technical Field
The invention relates to the technical field of dust removal integrated boxes, in particular to a separating mechanism matched with multiple cavities and a dust removal integrated box based on the separating mechanism.
Background
The industrial dust removal system box is called industrial dust remover or industrial dust removal equipment for separating industrial dust from dust gas, the existing dust removal equipment mainly adopts centrifugal separation to treat the industrial dust, the air outlet of the dust removal equipment is easy to bring the dust out along with the air, and the dust removal efficiency and the dust removal effect are both low.
Therefore, the separating mechanism matched with multiple cavities and the dust removal integrated box based on the separating mechanism solve the problems.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a separation mechanism matched with multiple cavities and a dust removal integrated box based on the separation mechanism, wherein two groups of primary separation units and two groups of secondary separation units are utilized to increase the dust removal efficiency.
In order to achieve the above object, the present invention provides a separation mechanism for multiple lumens, comprising:
the air purifier comprises a primary separation unit and a secondary separation unit, wherein the primary separation unit and the secondary separation unit are used for separating dust in air, the input end of the secondary separation unit is communicated with the first output end of the primary separation unit, the primary separation unit comprises an inlet pipe for external air to enter and a first filter cylinder communicated with the inlet pipe and used for external air passing through the inlet pipe to enter, the secondary separation unit comprises a second filter cylinder communicated with the second output end of the first filter cylinder, and the bottom of the second filter cylinder is provided with a second dust collection box for collecting dust filtered when the second filter cylinder filters air;
the fan that communicates in second cartridge filter top output, the top of fan is provided with the exhaust pipeline with the gas outgoing in the fan suction second cartridge filter, and the second cartridge filter symmetry sets up two sets ofly, is separated by the division board between two sets of second cartridge filters.
As a further optimization of the above scheme, a guide cover is arranged between the second input end on the first filter cartridge and the second filter cartridge in a communicating manner.
As a further optimization of the above scheme, the output end of the guide cover is connected with the adapter box, and the output end of the adapter box is connected to the side surface of the second filter cartridge.
The invention also discloses a dust removal integrated box, which comprises the separation mechanism matched with the multiple cavities, and also comprises:
the first dust collecting boxes are arranged at two sides of the bottom of the integrated box, the first filter cartridges are arranged at two groups corresponding to the two groups of first dust collecting boxes, and the second filter cartridges are arranged at two groups side by side and are arranged at the middle position of the integrated box.
As a further optimization of the above scheme, a climbing track fixed on the housing of the integration box is arranged on the side surface of the first dust collection box, a pipeline communicated between the outer wall chambers of the first dust collection box and the second filter cartridge is arranged in the climbing track, and a slope for climbing of a movable wheel fixed on the first dust collection box is arranged on the climbing track.
As a further optimization of the above solution, the upper surface of the integration box is provided with a box cover for sound insulation.
The invention relates to a separating mechanism matched with multiple cavities and a dust removal integrated box based on the same, which have the following beneficial effects:
1. according to the separation mechanism matched with multiple cavities and the dust removal integrated box based on the same, two groups of primary separation units and two groups of secondary separation units are utilized, so that the dust removal efficiency is improved;
2. according to the separation mechanism matched with multiple cavities and the dust removal integration box based on the separation mechanism, a fan generates suction force, the suction force is output from an inlet pipe, the inlet pipe sucks external air, the air firstly carries out primary dust filtration and separation through a first filter cylinder, the filtered dust falls into a first dust collection box, the air is output into a second filter cylinder through the upper end of the first filter cylinder to carry out secondary dust filtration and separation, the separated dust falls into a second dust collection box at the bottom of the second filter cylinder, and the air in the second filter cylinder is upwards input into a discharge pipeline through the suction of the fan;
3. according to the separation mechanism matched with multiple cavities and the dust removal integrated box based on the separation mechanism, multiple groups of cotton corrugated strips are arranged on the outer ring of each second filter cylinder, air is filtered by the cotton corrugated strips to remove small particle impurities, a partition plate is arranged between the two groups of second filter cylinders, so that when dust adsorbed in the second filter cylinders is cleaned, the dust cannot fall onto the adjacent group of second filter cylinders through the blocking of the partition plate and can be directly blown into the second dust collection box below the second filter cylinders, a high-pressure blowing and blocking mechanism is usually arranged at the upper parts of the dust cleaned second filter cylinders, and the dust adsorbed on the surfaces of the second filter cylinders is blown down by blowing adjusted high-pressure air to the hollow positions of the second filter cylinders.
There have been disclosed in detail certain embodiments of the invention with reference to the following description and drawings, and it is to be understood that the embodiments of the invention are not limited thereby, but are intended to cover within the spirit and scope of the appended claims, many changes, modifications, and equivalents.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the backside structure of the present invention.
In the figure: the integrated box comprises an integrated box 1, a box cover 2, a junction box 3, an inlet pipe 4, a partition plate 5, a first dust collection box 6, a second dust collection box 7, a second filter cylinder 8, a first filter cylinder 9, a guide cover 10, a discharge pipeline 11, a climbing track 12 and a fan 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
It should be noted that when an element is referred to as being "disposed on," or provided with "another element, it can be directly on the other element or intervening elements may also be present, when an element is referred to as being" connected, "or coupled to another element, it can be directly on the other element or intervening elements may be present, and" fixedly coupled "means that the element is fixedly coupled in many ways, which are not intended to be within the scope of the present disclosure, the terms" vertical, "" horizontal, "" left, "" right, "and the like are used herein for illustrative purposes only and are not intended to be a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items;
referring to the attached drawings 1-3 in the specification, the invention provides a technical scheme: a multiple lumen matched separation mechanism comprising:
the first-stage separation unit and the second-stage separation unit are used for separating dust in air, the input end of the second-stage separation unit is communicated with the first output end of the first-stage separation unit, the first-stage separation unit comprises an inlet pipe 4 for external air to enter and a first filter cylinder 9 communicated with the inlet pipe 4 and used for external air passing through the inlet pipe 4 to enter, the second-stage separation unit comprises a second filter cylinder 8 communicated with the second output end of the first filter cylinder 9, and a second dust collection box 7 for collecting dust filtered when the second filter cylinder 8 filters air is arranged at the bottom of the second filter cylinder 8;
the fan 13 that communicates in second cartridge filter 8 top output, the top of fan 13 is provided with the exhaust pipeline 11 with the gas outgoing in fan 13 suction second cartridge filter 8, and second cartridge filter 8 symmetry sets up two sets ofly, separates through division board 5 between two sets of second cartridge filter 8.
In this embodiment, the fan 13 generates a suction force, the suction force is output from the inlet pipe 4, the inlet pipe 4 sucks in external air, the air performs a centrifugal motion in a spiral shape through the inside of the first filter cartridge 9, large-particle dust in the air is filtered out to perform primary dust filtration and separation, the filtered large-particle dust falls into the first dust collection box 6, the air containing small-particle dust is output to the second filter cartridge 8 through the upper end of the first filter cartridge 9 and is filtered out to perform secondary dust filtration and separation through the second filter cartridge 8, the separated small-particle dust falls into the second dust collection box 7 at the bottom of the second filter cartridge 8, the air in the second filter cartridge 8 is upwards input into the discharge pipeline 11 through the suction of the fan 13, the outer ring of the second filter cartridge 8 is provided with a plurality of cotton corrugated strips, the air is filtered out of small-particle impurities through the cotton strips, be provided with division board 5 between two sets of second cartridge filter 8, be in order to clear up the adsorbed dust in the second cartridge filter 8 on the dust can not fall into adjacent a set of second cartridge filter 8 through the blockking of division board 5, and can be blown into in the second dust-collecting box 7 of its below directly, the second cartridge filter 8 is clear dirt and is provided with high pressure on upper portion usually and blows stifled mechanism, blows at the hollow position of second cartridge filter 8 through the high-pressure gas who adjusts, will adsorb the dust on second cartridge filter 8 surface and blow down.
A guide cover 10 is communicated between the second output end of the first filter cartridge 9 and the second filter cartridge 8.
In this embodiment, one end of the guiding hood 10 is tapered, the other end of the guiding hood 10 is open, and the cross-sectional area of the other end of the guiding hood 10 is larger than that of one end of the guiding hood 10, that is, the air in the first filter cartridge 9 passes through the guiding hood 10, and can enter and contact the second-stage separation unit with a larger contact surface.
The output of guide housing 10 is connected with adaptor box 3, and the output of adaptor box 3 is connected in the side of second cartridge filter 8.
The side of the first dust collection box 6 is provided with a climbing rail 12 fixed on the shell of the integration box 1, a pipeline communicated between the outer wall chambers of the first dust collection box 6 and the second filter cartridge 8 is arranged in the climbing rail 12, and a slope for the fixed movable wheel on the first dust collection box 6 to climb is arranged on the climbing rail 12.
Furthermore, the climbing rail 12 is used for the moving wheel on the first dust box 6 to climb along the slope to the upper side of the climbing rail 12 for positioning, the climbing rail 12 plays a role in protecting the pipeline, the pipeline can be connected between the outer wall chambers of the first dust box 6 and the second filter cartridge 8, and is used for sucking fine dust scattered between the inner wall of the first dust box 6 and the dust bag into the chamber of the outer wall of the second filter cartridge 8, so that the purpose of self-cleaning of the first dust box 6 is achieved.
The dust collecting bag is sleeved in the first dust collecting box 6, and a sealed chamber is formed between the outer part of the dust collecting bag and the first dust collecting box 6.
The invention also discloses a dust removal integrated box, which comprises any one of the separating mechanisms matched with the multiple cavities, and further comprises:
as the integrated box 1 of the general support, the first dust collecting boxes 6 are provided with two groups and distributed at two sides of the bottom of the integrated box 1, the first filter cartridges 9 are provided with two groups corresponding to the two groups of the first dust collecting boxes 6, and the second filter cartridges 8 are provided with two groups side by side and arranged at the middle position of the integrated box 1.
In this embodiment, two sets of first dust-collecting box 6, first cartridge filter 9, second cartridge filter 8 butt joint use, can be used for filtering the granule of different materials respectively, and the practicality is strong, and can collect large granule and tiny particle dust classification, have the effect of collecting the impurity discarded object of two kinds of different grade types simultaneously.
The upper surface of the integration box 1 is provided with a box cover 2 for sound insulation.
Further, the inside of case lid 2 is provided with sound attenuation structure or amortization cotton board etc. for the noise that isolated fan 13 produced has certain help to the noise reduction.
In the device, the suction force can be reduced by closing one group of fans 13, the one group of first dust collection boxes 6 are closed, the negative pressure suction forces generated by the two groups of fans 13 can jointly act on the one group of first dust collection boxes 6, the dust removal adsorption force of the equipment is increased, and the selection can be carried out according to actual requirements.
The separating mechanism that this embodiment provided coordinates multicavity and because dust removal collection box of this mechanism, the course of operation is as follows:
the fan 13 generates suction force, the suction force is output from the inlet pipe 4, the inlet pipe 4 sucks external air, the air does centrifugal motion in a spiral shape through the inside of the first filter cylinder 9, large-particle dust in the air is filtered out to carry out primary dust filtration and separation, the filtered large-particle dust falls into the first dust collection box 6, the air containing small-particle dust is output to the second filter cylinder 8 through the upper end of the first filter cylinder 9 and carries out secondary dust filtration and separation by filtering the small-particle dust through the second filter cylinder 8, the separated small-particle dust falls into the second dust collection box 7 at the bottom of the second filter cylinder 8, the air in the second filter cylinder 8 is upwards input into the discharge pipeline 11 through the suction of the fan 13, a plurality of groups of cotton corrugated strips are arranged on the outer ring of the second filter cylinder 8, small-particle impurities are filtered through the cotton corrugated strips, the isolation plate 5 is arranged between the two groups of second filter cylinders 8, the dust can not fall into the adjacent group of second filter cartridges 8 through the blocking of the partition plate 5 when the dust adsorbed in the second filter cartridges 8 is cleaned, and can be directly blown into the second dust collecting box 7 below the second filter cartridges 8, the dust cleaning of the second filter cartridges 8 is usually provided with a high-pressure blowing and blocking mechanism on the upper part, and the dust adsorbed on the surfaces of the second filter cartridges 8 is blown down through the adjusted high-pressure gas blown at the hollow positions of the second filter cartridges 8.
It should be understood that the present invention is not limited to the particular embodiments described herein, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A separation mechanism for coupling multiple lumens, comprising:
the air purifier comprises a primary separation unit and a secondary separation unit, wherein the primary separation unit and the secondary separation unit are used for separating dust in air, the input end of the secondary separation unit is communicated with the first output end of the primary separation unit, the primary separation unit comprises an inlet pipe for external air to enter and a first filter cylinder communicated with the inlet pipe and used for external air passing through the inlet pipe to enter, the secondary separation unit comprises a second filter cylinder communicated with the second output end of the first filter cylinder, and the bottom of the second filter cylinder is provided with a second dust collection box for collecting dust filtered when the second filter cylinder filters air;
the fan that communicates in second cartridge filter top output, the top of fan is provided with the exhaust pipeline with the gas outgoing in the fan suction second cartridge filter, and the second cartridge filter symmetry sets up two sets ofly, is separated by the division board between two sets of second cartridge filters.
2. A multiple lumen compatible separation mechanism according to claim 1 further comprising: and a guide cover is communicated between the second output end on the first filter cartridge and the second filter cartridge.
3. A multiple lumen compatible separation mechanism according to claim 2 wherein: the output of direction cover is connected with the switching box, and the output of switching box is connected in the side of second cartridge filter.
4. The utility model provides a dust removal collection box which characterized in that: a separation mechanism comprising a cooperating plurality of lumens according to any of claims 1-3, further comprising:
the first dust collecting boxes are arranged at two sides of the bottom of the integrated box, the first filter cartridges are arranged at two groups corresponding to the two groups of first dust collecting boxes, and the second filter cartridges are arranged at two groups side by side and are arranged at the middle position of the integrated box.
5. A dust removal integration box according to claim 4, wherein: the side of the first dust collection box is provided with a climbing track fixed on the shell of the integration box, a pipeline communicated between the first dust collection box and the outer wall cavity of the second filter cartridge is arranged in the climbing track, and a slope for the fixed movable wheel on the first dust collection box to climb is arranged on the climbing track.
6. A dust removal integration box according to claim 4, wherein: the upper surface of the integrated box is provided with a box cover used for sound insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110335729.4A CN113101766A (en) | 2021-03-29 | 2021-03-29 | Multi-cavity-matched separating mechanism and dust removal integrated box based on same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110335729.4A CN113101766A (en) | 2021-03-29 | 2021-03-29 | Multi-cavity-matched separating mechanism and dust removal integrated box based on same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113101766A true CN113101766A (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110335729.4A Pending CN113101766A (en) | 2021-03-29 | 2021-03-29 | Multi-cavity-matched separating mechanism and dust removal integrated box based on same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113101766A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731061A (en) * | 2021-08-24 | 2021-12-03 | 中科新天地（合肥）环保科技有限公司 | Filter cartridge dust removal equipment |
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| US20100037572A1 (en) * | 2008-08-12 | 2010-02-18 | Cheng Yun-Tai | Negative pressure dust collector with a dust receiving bag smoothly inflatable |
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| US20150231781A1 (en) * | 2014-02-19 | 2015-08-20 | Fanuc Corporation | Robot traveling system provided with cable track, robot system, and machining system |
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| CN207575984U (en) * | 2017-11-13 | 2018-07-06 | 清远市易碳环境科技有限公司 | A kind of industrial cloth bag dust collector |
| CN208694508U (en) * | 2018-04-04 | 2019-04-05 | 青岛恒润建材有限公司 | Bag filter |
| CN110237619A (en) * | 2019-07-18 | 2019-09-17 | 苏州荣能环保科技有限公司 | A kind of workshop environmental protecting device with multistage dedusting function |
-
2021
- 2021-03-29 CN CN202110335729.4A patent/CN113101766A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1176589A (en) * | 1997-09-09 | 1999-03-23 | Ace Denken:Kk | Dust collector for machine polishing pachinko ball |
| WO2000040134A1 (en) * | 1999-01-07 | 2000-07-13 | Vorwerk & Co. Interholding Gmbh | Dust filter bag for a vacuum cleaner |
| BR0003887A (en) * | 1999-09-01 | 2001-04-03 | Hunter Douglas Ind Bv | Curtain rail |
| CN101183779A (en) * | 2007-12-14 | 2008-05-21 | 李作河 | Overhead rail type integral moving monorail crane |
| US20100037572A1 (en) * | 2008-08-12 | 2010-02-18 | Cheng Yun-Tai | Negative pressure dust collector with a dust receiving bag smoothly inflatable |
| CN103958812A (en) * | 2012-02-22 | 2014-07-30 | 瑞泰控股公司 | Powered safety curtains |
| US20150231781A1 (en) * | 2014-02-19 | 2015-08-20 | Fanuc Corporation | Robot traveling system provided with cable track, robot system, and machining system |
| TWM530690U (en) * | 2016-05-13 | 2016-10-21 | San Ford Machinery Co Ltd | Dust collector improvement structure capable of expanding falling bag |
| CN106985838A (en) * | 2016-09-21 | 2017-07-28 | 比亚迪股份有限公司 | Track for straddle type rail transit system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731061A (en) * | 2021-08-24 | 2021-12-03 | 中科新天地（合肥）环保科技有限公司 | Filter cartridge dust removal equipment |
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Application publication date: 20210713 |