CN110561536A - Automatic air exhaust and dust removal device for paperboard production - Google Patents
Automatic air exhaust and dust removal device for paperboard production Download PDFInfo
- Publication number
- CN110561536A CN110561536A CN201910869421.0A CN201910869421A CN110561536A CN 110561536 A CN110561536 A CN 110561536A CN 201910869421 A CN201910869421 A CN 201910869421A CN 110561536 A CN110561536 A CN 110561536A
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- Prior art keywords
- dust
- communicated
- spherical shell
- dust removal
- pipe
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/04—Stationary flat screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4636—Regulation of screen apertures
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B6/00—Cleaning by electrostatic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation Of Particles Using Liquids (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of dust removal, in particular to an automatic air exhaust and dust removal device for paperboard production, which comprises a dust hood and a purifier; the upper part of the dust hood is communicated with a dust collection pipe, and the dust removal fan is communicated with the dust hood through the dust collection pipe; a plurality of auxiliary dust suction ports are uniformly formed in the dust collecting cover, the air exhaust end of the dust removing fan is communicated with the electrostatic dust collector through a dust exhaust pipe, and the air exhaust end of the electrostatic dust collector is communicated with the purifier through a second dust inlet pipe; the purifier comprises a spherical shell and stirring rods, wherein a rotating shaft is rotatably arranged in the spherical shell, a plurality of stirring rods are arranged on the rotating shaft, and a plurality of nozzles are also arranged on the inner wall of the spherical shell; the upper part of the spherical shell is communicated with an exhaust pipe, and the lower part of the spherical shell is provided with a sewage outlet. In the exhaust dust removal process, the dust particles with different particle sizes are firstly screened by the filter mechanism, and then the dust is further filtered and removed by the electrostatic dust collector and the purifier.
Description
Technical Field
The invention relates to the technical field of dust removal, in particular to an automatic air exhaust and dust removal device for paperboard production.
background
corrugated paper is a plate-like object formed by bonding corrugated paper formed by processing a corrugated roll with a liner paper. The invention and application of the corrugated paper have more than one hundred years history, have low cost, light weight, easy processing, intensity big, printing adaptability is good, store and carry advantages such as convenient, more than 80% of the corrugated paper can be recycled, the corrugated paper can be used as the packing of food or digital products, relatively environmental protection, use comparatively extensively.
Corrugated paper can produce a large amount of powder, dust in cutting process, and traditional dust collector dust removal effect is relatively poor, and more powder, dust can be remained to corrugated container board joint cutting, and has few part powder, dust and continue to waft, is difficult to absorb the processing.
Therefore, in view of the above current situation, there is an urgent need to develop an automatic air exhaust and dust removal device for paperboard production to overcome the shortcomings in the current practical application.
Disclosure of Invention
the invention aims to provide an automatic air exhaust and dust removal device for paperboard production, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
An automatic air exhaust and dust removal device for paperboard production comprises a dust hood and a purifier; the dust hood is of a funnel-shaped structure, the upper part of the dust hood is communicated with a dust collection pipe, the other end of the dust collection pipe is communicated with the air inlet end of the dust removal fan, and the dust removal fan is communicated with the dust hood through the dust collection pipe; a plurality of auxiliary dust suction ports are uniformly formed in the dust collection cover and are communicated with the dust suction pipe through a first dust inlet pipe; the air exhaust end of the dust removal fan is communicated with the electrostatic dust collector through a dust exhaust pipe, and the air exhaust end of the electrostatic dust collector is communicated with the purifier through a second dust inlet pipe; the purifier comprises a spherical shell and stirring rods, wherein a rotating shaft is rotatably arranged in the spherical shell, a plurality of stirring rods are uniformly arranged on the rotating shaft, and a plurality of nozzles are also uniformly arranged on the inner wall of the spherical shell; the upper part of the spherical shell is communicated with an exhaust pipe, and the lower part of the spherical shell is provided with a sewage outlet.
As a further scheme of the invention: still be provided with filtering mechanism between first dust inlet pipe and the dust cage, filtering mechanism includes the ring carrier and installs at the inboard first sieve and the second sieve of ring carrier, and first sieve sets up in the top of second sieve, the upside of first sieve and the downside of second sieve all are provided with the mounting panel, and the mounting panel passes through connecting rod and ring carrier fixed connection, first sieve rotates to be installed the upside on the mounting panel, second sieve fixed mounting is at the downside on the mounting panel.
as a further scheme of the invention: and the mounting plate is fixedly provided with a rotating motor for driving the first sieve plate to rotate.
As a further scheme of the invention: an opening and closing valve is arranged on the first dust inlet pipe.
As a further scheme of the invention: the outside of clarifier still is provided with the water tank, installs the water pump on the water tank, the inside intercommunication of one end and water tank of water pump, and the other end of water pump passes through multi-ported pipe and a plurality of nozzle intercommunication.
As a further scheme of the invention: and a rotating motor for driving the rotating shaft to rotate is further installed on the rear side of the spherical shell.
As a further scheme of the invention: the dust collection hood is characterized by further comprising a base and a rack, the rack is fixedly mounted on the base, a screw rod is rotatably mounted on the rack, a threaded sleeve is connected onto the screw rod in a threaded mode, one side of the threaded sleeve is slidably connected with the rack, and the other side of the threaded sleeve is fixedly connected with the dust collection hood through a connecting frame.
As a further scheme of the invention: and the outer side of the rack is also fixedly provided with a driving motor, and the output end of the driving motor is in transmission connection with the screw rod through a bevel gear set.
Compared with the prior art, the invention has the beneficial effects that: in the process of exhausting air and removing dust, firstly, a filtering mechanism is utilized to screen dust particles with different particle sizes, then, an electrostatic dust collector and a purifier are utilized to further filter and remove the dust, a plurality of nozzles are uniformly arranged on the inner wall of a spherical shell of the purifier, clear water is continuously sprayed into the spherical shell by the nozzles, the clear water is contacted with introduced dust-containing gas and generates collision, and when a plurality of nozzles spray water simultaneously, the clear water is rushed to the dust-containing gas at multiple angles, so that the dust-containing gas is comprehensively purified.
drawings
Fig. 1 is a schematic structural diagram of an automatic air exhaust and dust removal device for paperboard production.
fig. 2 is a schematic structural diagram of a purifier in the automatic exhaust dust removal device for paperboard production.
Fig. 3 is a schematic structural diagram of a filtering mechanism in the automatic air exhaust and dust removal device for paperboard production.
in the figure: 1-base, 2-frame, 3-bevel gear group, 4-screw, 5-driving motor, 6-dust collecting hood, 7-link span, 8-swivel nut, 9-filtering mechanism, 901-mounting panel, 902-connecting rod, 903-first sieve plate, 904-rotating motor, 905-second sieve plate, 10-first dust inlet pipe, 11-open and close valve, 12-dust collecting pipe, 13-dust removing fan, 14-dust discharging pipe, 15-electrostatic precipitator, 16-purifier, 17-second dust inlet pipe, 18-nozzle, 19-exhaust pipe, 20-stirring rod, 21-sewage outlet.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
example 1
Referring to fig. 1 to 3, in an embodiment of the present invention, an automatic air exhaust and dust removal device for paperboard production includes a dust hood 6 and a purifier 16; the dust hood 6 is of a funnel-shaped structure, the upper part of the dust hood 6 is communicated with a dust suction pipe 12, the other end of the dust suction pipe 12 is communicated with an air inlet end of a dust removal fan 13, and the dust removal fan 13 is communicated with the dust hood 6 through the dust suction pipe 12 and used for pumping out dust generated in the production of the paperboard; a plurality of auxiliary dust suction ports are uniformly formed in the dust collection cover 6, the auxiliary dust suction ports are communicated with the dust suction pipe 12 through the first dust inlet pipe 10, the dust removal efficiency of the paperboard is improved through the arrangement of the plurality of dust suction ports, and dust can rapidly flow into the dust suction pipe 12;
A filter mechanism 9 is further arranged between the first dust inlet pipe 10 and the dust collection cover 6, the filter mechanism 9 comprises an annular support and a first sieve plate 903 and a second sieve plate 905 which are arranged on the inner side of the annular support, the first sieve plate 903 is arranged above the second sieve plate 905, mounting plates 901 are arranged on the upper side of the first sieve plate 903 and the lower side of the second sieve plate 905, the mounting plates 901 are fixedly connected with the annular support through connecting rods 902, the first sieve plate 903 is rotatably arranged on the mounting plate 901 on the upper side, and the second sieve plate 905 is fixedly arranged on the mounting plate 901 on the lower side;
A rotating motor 904 for driving the first sieve plate 903 to rotate is fixedly installed on the mounting plate 901 on the upper side, the rotating motor 904 drives the first sieve plate 903 on the upper side to rotate, so that filter holes on the first sieve plate 903 are aligned or staggered with filter holes on the second sieve plate 905, the mesh size of the filter mechanism 9 during dust filtration is changed, and dust particles with different particle sizes are screened;
Specifically, in this embodiment, the first dust inlet pipe 10 is provided with the on-off valve 11 for controlling on-off of the first dust inlet pipe 10, so that an operator can select the number of the first dust inlet pipes 10 to be opened, and the dust removal efficiency can be changed according to the number of dust;
The exhaust end of the dust removal fan 13 is communicated with the electrostatic dust collector 15 through a dust exhaust pipe 14, the dust removal fan 13 sends air containing a large amount of dust into the electrostatic dust collector 15, and the electrostatic dust collector 15 adsorbs tiny particles in dust-containing gas to primarily remove dust from the dust-containing gas;
the air exhaust end of the electrostatic dust collector 15 is communicated with the purifier 16 through a second dust inlet pipe 17, and is used for sending the primarily treated dust into the purifier 16 through the second dust inlet pipe 17 for secondary dust removal; the purifier 16 comprises a spherical shell and stirring rods 20, a rotating shaft is rotatably arranged in the spherical shell, a plurality of stirring rods 20 are uniformly arranged on the rotating shaft, a plurality of nozzles 18 are uniformly arranged on the inner wall of the spherical shell, clear water is continuously sprayed into the spherical shell by the nozzles 18, the clear water is contacted with introduced dust-containing gas and collides with the introduced dust-containing gas, and when a plurality of nozzles 18 spray water simultaneously, the clear water is rushed to the dust-containing gas at multiple angles, so that the dust-containing gas is comprehensively purified;
The upper part of the spherical shell is communicated with an exhaust pipe 19 for exhausting the purified gas, the lower part of the spherical shell is provided with a sewage outlet 21, and clean water absorbs dust in the dust-containing gas and then flows out through the sewage outlet 21;
Specifically, in this embodiment, a water tank (not shown in the figure) is further disposed outside the purifier 16, a water pump is mounted on the water tank, one end of the water pump is communicated with the inside of the water tank, and the other end of the water pump is communicated with the plurality of nozzles 18 through a multi-way pipe for supplying water to the nozzles 18;
Specifically, in this embodiment, the rear side of the spherical shell is further provided with a rotating motor for driving the rotating shaft to rotate.
Example 2
The embodiment is different from the embodiment 1 in that the dust collection device further comprises a base 1 and a frame 2, the frame 2 is fixedly mounted on the base 1, a screw rod 4 is rotatably mounted on the frame 2, a threaded sleeve 8 is connected to the screw rod 4 in a threaded manner, one side of the threaded sleeve 8 is slidably connected with the frame 2, the other side of the threaded sleeve 8 is fixedly connected with a dust collection cover 6 through a connecting frame 7, the threaded sleeve 8 is driven to slide up and down on the inner side of the frame 2 through the rotation of the screw rod 4, and therefore the dust collection cover 6 is driven to move up and down through the threaded sleeve 8 and the connecting frame 7, and the dust collection cover 6 is enabled to be close;
Specifically, in this embodiment, the outside of frame 2 still fixed mounting has driving motor 5, and driving motor 5's output passes through bevel gear group 3 and is connected with the transmission of screw rod 4 for drive screw rod 4 rotates.
the above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (8)
1. An automatic air exhaust and dust removal device for paperboard production comprises a dust hood (6) and a purifier (16); the dust hood (6) is of a funnel-shaped structure, the upper part of the dust hood (6) is communicated with a dust suction pipe (12), the other end of the dust suction pipe (12) is communicated with an air inlet end of a dust removal fan (13), and the dust removal fan (13) is communicated with the dust hood (6) through the dust suction pipe (12); the dust collection cover is characterized in that a plurality of auxiliary dust collection ports are uniformly formed in the dust collection cover (6), and the auxiliary dust collection ports are communicated with a dust collection pipe (12) through a first dust inlet pipe (10); the air exhaust end of the dust removal fan (13) is communicated with the electrostatic dust collector (15) through a dust exhaust pipe (14), and the air exhaust end of the electrostatic dust collector (15) is communicated with the purifier (16) through a second dust inlet pipe (17); the purifier (16) comprises a spherical shell and stirring rods (20), a rotating shaft is rotatably arranged in the spherical shell, a plurality of stirring rods (20) are uniformly arranged on the rotating shaft, and a plurality of nozzles (18) are also uniformly arranged on the inner wall of the spherical shell; the upper part of the spherical shell is communicated with an exhaust pipe (19), and the lower part of the spherical shell is provided with a sewage outlet (21).
2. The automatic exhaust dust removal device for paperboard production according to claim 1, wherein a filter mechanism (9) is further arranged between the first dust inlet pipe (10) and the dust collection hood (6), the filter mechanism (9) comprises an annular support, and a first sieve plate (903) and a second sieve plate (905) which are arranged on the inner side of the annular support, the first sieve plate (903) is arranged above the second sieve plate (905), mounting plates (901) are arranged on the upper side of the first sieve plate (903) and the lower side of the second sieve plate (905), the mounting plates (901) are fixedly connected with the annular support through connecting rods (902), the first sieve plate (903) is rotatably arranged on the mounting plate (901) on the upper side, and the second sieve plate (905) is fixedly arranged on the mounting plate (901) on the lower side.
3. The automatic exhaust dust removal device for paperboard production according to claim 2, wherein a rotary motor (904) for driving the first sieve plate (903) to rotate is fixedly mounted on the mounting plate (901) at the upper side.
4. The automatic exhaust dust removing device for paperboard production according to claim 1, wherein the first dust inlet pipe (10) is provided with an open/close valve (11).
5. The automatic exhaust and dust removal device for paperboard production according to claim 1, wherein a water tank is further arranged outside the purifier (16), a water pump is mounted on the water tank, one end of the water pump is communicated with the inside of the water tank, and the other end of the water pump is communicated with the plurality of nozzles (18) through a multi-way pipe.
6. The automatic air exhaust and dust removal device for paperboard production according to claim 5, wherein a rotary motor for driving the rotary shaft to rotate is further installed at the rear side of the spherical shell.
7. The automatic exhaust and dust removal device for the paperboard production according to any one of claims 1 to 6, further comprising a base (1) and a frame (2), wherein the frame (2) is fixedly installed on the base (1), a screw (4) is rotatably installed on the frame (2), a threaded sleeve (8) is in threaded connection with the screw (4), one side of the threaded sleeve (8) is in sliding connection with the frame (2), and the other side of the threaded sleeve (8) is fixedly connected with the dust collection cover (6) through a connecting frame (7).
8. The automatic exhaust and dust removal device for paperboard production according to claim 7, wherein a driving motor (5) is fixedly mounted on the outer side of the rack (2), and the output end of the driving motor (5) is in transmission connection with the screw (4) through a bevel gear set (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910869421.0A CN110561536A (en) | 2019-09-16 | 2019-09-16 | Automatic air exhaust and dust removal device for paperboard production |
| PCT/CN2019/108088 WO2021051435A1 (en) | 2019-09-16 | 2019-09-26 | Automatic air exhaust and dust removal device for paperboard production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910869421.0A CN110561536A (en) | 2019-09-16 | 2019-09-16 | Automatic air exhaust and dust removal device for paperboard production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110561536A true CN110561536A (en) | 2019-12-13 |
Family
ID=68780038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910869421.0A Withdrawn CN110561536A (en) | 2019-09-16 | 2019-09-16 | Automatic air exhaust and dust removal device for paperboard production |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110561536A (en) |
| WO (1) | WO2021051435A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111185440A (en) * | 2019-12-30 | 2020-05-22 | 重庆皖渝纸制品有限公司 | Cardboard cleaning device |
| CN112717579A (en) * | 2020-12-13 | 2021-04-30 | 宜都市天弘机械工程服务有限公司 | High-temperature flue gas automatic purification equipment is used in production of leaf spring cassette |
| CN113908634A (en) * | 2021-11-19 | 2022-01-11 | 李焕 | Dust collector and collection method for industrial production |
| CN114950028A (en) * | 2022-07-21 | 2022-08-30 | 启东诺金装备科技有限公司 | Filter belt type air dust removal device |
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| US4163650A (en) * | 1978-07-24 | 1979-08-07 | Tepco, Incorporated | Portable electronic precipitator |
| CN204748833U (en) * | 2015-05-15 | 2015-11-11 | 昆山本瑞家具有限公司 | Push away bench saw dust extraction |
| CN205870975U (en) * | 2016-08-12 | 2017-01-11 | 上海华兑金属有限公司 | Multi -station die dust extraction |
| CN208252177U (en) * | 2018-04-19 | 2018-12-18 | 芬泰克新材料南通有限公司 | A kind of automobile catalytic device of high purifying rate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207722464U (en) * | 2017-11-30 | 2018-08-14 | 江西抚州新兴化工有限公司 | A kind of water emulsion pesticide production filtering tank |
| CN108273362B (en) * | 2018-02-11 | 2020-04-07 | 无锡市华星东方电力环保科技有限公司 | Welding flue gas purification process |
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2019
- 2019-09-16 CN CN201910869421.0A patent/CN110561536A/en not_active Withdrawn
- 2019-09-26 WO PCT/CN2019/108088 patent/WO2021051435A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4163650A (en) * | 1978-07-24 | 1979-08-07 | Tepco, Incorporated | Portable electronic precipitator |
| CN204748833U (en) * | 2015-05-15 | 2015-11-11 | 昆山本瑞家具有限公司 | Push away bench saw dust extraction |
| CN205870975U (en) * | 2016-08-12 | 2017-01-11 | 上海华兑金属有限公司 | Multi -station die dust extraction |
| CN208252177U (en) * | 2018-04-19 | 2018-12-18 | 芬泰克新材料南通有限公司 | A kind of automobile catalytic device of high purifying rate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111185440A (en) * | 2019-12-30 | 2020-05-22 | 重庆皖渝纸制品有限公司 | Cardboard cleaning device |
| CN111185440B (en) * | 2019-12-30 | 2022-04-26 | 重庆皖渝纸制品有限公司 | Cardboard cleaning device |
| CN112717579A (en) * | 2020-12-13 | 2021-04-30 | 宜都市天弘机械工程服务有限公司 | High-temperature flue gas automatic purification equipment is used in production of leaf spring cassette |
| CN113908634A (en) * | 2021-11-19 | 2022-01-11 | 李焕 | Dust collector and collection method for industrial production |
| CN114950028A (en) * | 2022-07-21 | 2022-08-30 | 启东诺金装备科技有限公司 | Filter belt type air dust removal device |
| CN114950028B (en) * | 2022-07-21 | 2022-10-21 | 启东诺金装备科技有限公司 | Filter belt type air dust removal device |
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| Publication number | Publication date |
|---|---|
| WO2021051435A1 (en) | 2021-03-25 |
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Application publication date: 20191213 |
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| WW01 | Invention patent application withdrawn after publication |