CN113750699A - Intelligent automatic environment-friendly dust removal equipment for coal mine - Google Patents
Intelligent automatic environment-friendly dust removal equipment for coal mine Download PDFInfo
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- CN113750699A CN113750699A CN202111032935.4A CN202111032935A CN113750699A CN 113750699 A CN113750699 A CN 113750699A CN 202111032935 A CN202111032935 A CN 202111032935A CN 113750699 A CN113750699 A CN 113750699A
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- Prior art keywords
- dust
- box
- dust collection
- collecting
- platform
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- 239000000428 dust Substances 0.000 title claims abstract description 94
- 239000003245 coal Substances 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims description 18
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 5
- 230000003028 elevating effect Effects 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005192 partition Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000889 atomisation Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/08—Means for controlling the separation process
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses intelligent automatic coal mine environment-friendly dust removal equipment which comprises a platform, an embedded box, a groove, a dust collection arch, a solar panel, a control panel, ventilation windows and a transmission device, wherein the platform is of a four-side rectangular structure, the bottom of the embedded box is provided with the rectangular structure, the middle of the top end of the platform is provided with the rectangular structure groove, the top end of the platform is provided with the dust collection arch fixed by bolts, the middle of the top end of the dust collection arch is provided with the solar panel connected by bolts, the middle of the front end surface of the dust collection arch is provided with the embedded control panel, the bottom of the dust collection arch is provided with the ventilation windows distributed symmetrically, and the left end of the inner side of the dust collection arch is provided with the transmission device fixed by bolts. The invention can atomize and remove dust generated in the coal loading process by reasonable design, simultaneously adopts the automatic control of the sinking switch and the dust collecting and filtering device to facilitate the operation of workers, treats the collected dust impurities and protects the environment.
Description
Technical Field
The invention relates to dust removal equipment, in particular to intelligent automatic coal mine environment-friendly dust removal equipment.
Background
Along with the transformation of social energy structure, coal still accounts for than higher but often can produce harmful particulate matters such as dust, raise dust in exploitation, transportation in the energy supply and harm healthy, and the dust collecting equipment who uses at present often needs to use or special person controls to use very inconveniently always, so need a novel dust collecting equipment of automatic control and be convenient for handle the raise dust of collecting.
Disclosure of Invention
The invention aims to provide intelligent automatic coal mine environment-friendly dust removal equipment to solve the technical problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an automatic colliery environmental protection dust collecting equipment of intelligence, includes the platform, inlays case, recess, dust absorption arched door, solar panel, control panel, ventilation window, transmission device, the platform is four sides rectangle structure and the embedding case of installing the rectangle structure in the bottom, platform top mid-open has the recess and the top of rectangle structure to install bolted dust absorption arched door, dust absorption arched door top mid-mounting has bolted connection's solar panel, the positive terminal surface mid-mounting of dust absorption arched door has embedded control panel and bottom to open the ventilation window that has the symmetric distribution, the inboard left end of dust absorption arched door installs bolted transmission device.
On the basis of the technical scheme, the embedded box is internally provided with a sinking supporting device, a sliding switch control device, a dust collecting box and a hydraulic lifting device, the groove is internally provided with a reciprocating sinking supporting device and the bottom of the groove is provided with the sliding switch control device, the bottom of the sliding switch control device is provided with the dust collecting device fixed by bolts, and the rear end of the dust collecting device is provided with the hydraulic lifting device fixed by bolts, wherein the hydraulic lifting device is arranged at the bottom of the dust collecting box.
On the basis of the technical scheme, the dust absorption arched door comprises a shell, an atomization spraying device, a water conveying pipe, a pressurizing device, an integrated control box and a storage battery, wherein the shell is of an arched structure, the atomization spraying device is symmetrically distributed on the inner side of the shell, the atomization spraying device is fixed on the inner side of the water conveying pipe through threaded connection, the pressurizing device is installed at the rear end of the water conveying pipe, the pressurizing device is connected with the integrated control box at the rear end of a control panel through an electric wire, and the integrated control box is connected with the storage battery through an electric wire and is connected with a solar panel.
On the basis of the technical scheme, the supporting device sinks and includes supporting partition plate, plug connector, jack box, threading pipe, terminal box, telescopic link, spring, the symmetrical jack connector of bolt fastening is installed for four sides rectangle structure and bottom both ends to the supporting partition plate, jack connector and the jack box sliding connection of bottom just are connected with the terminal box through the threading pipe, the terminal box passes through the electric wire and is connected with integrated control ware, four equidistance symmetric distribution's telescopic link is installed to the supporting partition plate bottom and just pass through bolted connection, telescopic link bottom circumference surface has cup jointed the spring.
On the basis of the technical scheme, the dust collecting device comprises a collecting disc, a baffle, a hinged joint, a support frame, a hydraulic oil tank, a shunting device, a hydraulic cylinder, a dust collecting box body, a dust inlet, a pull box, a handle, a drain hole and a filter screen, wherein the collecting disc is of a four-side rectangular structure, the rear part of the top end of the collecting disc is provided with symmetrically distributed triangular block baffles, the hinged joint fixed by bolts is arranged at the rear end of the bottom of the collecting disc and is hinged and fixed with the support frame, the hydraulic oil tank is arranged at the bottom of the support frame, the shunting device is connected with the hydraulic cylinder through a pipeline, the hydraulic cylinder is connected with the collecting disc through a flange plate, the dust collecting box body is arranged in the middle of the rear end of the collecting disc, the dust inlet is arranged at the top of the positive end surface, the pull box in sliding connection is arranged at the bottom of the right end of the dust collecting box body, the handle in threaded connection is arranged in the middle of the right end of the pull box, and the drain hole is arranged inside the pull box body, and a filter screen with a rectangular structure is laid at the top end of the drain hole.
Compared with the prior art, the invention has the following advantages: the dust removal equipment disclosed by the invention has the advantages that the sinking support device sinks under the weight of the transport vehicle, the plug connector and the plug box are further matched and electrified to control dust removal, so that the energy is effectively saved, the automatic control and the labor are saved, meanwhile, the water flow atomization dust removal is realized, harmful particles in the air are collected into the dust collection box through the collection disc, the water and the dust are filtered and separated, the centralized treatment is facilitated, and the ecological environment is protected.
Drawings
Fig. 1 is a schematic view of the external structure of the present invention.
FIG. 2 is a schematic view of the connection of the inner structure of the embedded box of the present invention.
Fig. 3 is a schematic structural view of the dust-absorbing arched door.
Fig. 4 is a schematic structural view of the sinking support device of the present invention.
FIG. 5 is a schematic view of the dust collecting apparatus according to the present invention.
In the figure: 1. platform, 2, embedded box, 3, groove, 4, dust collection arch, 5, solar panel, 6, control panel, 7, ventilation window, 8, transmission device, 9, sinking support device, 10, sliding switch control device, 11, dust collection device, 12, dust collection box, 13, hydraulic lifting device, 14, shell, 15, atomization spraying device, 16, water pipe, 17, pressurizing device, 18, integrated control box, 19, storage battery, 20, support partition, 21, plug connector, 22, plug box, 23, threading pipe, 24, junction box, 25, telescopic rod, 26, spring, 27, collection disc, 28, baffle, 29, hinge joint, 30, support frame, 31, hydraulic oil tank, 32, flow divider, 33, hydraulic cylinder, 34, dust collection box, 34-1, dust inlet, 35, drawing box, 35-1, handle, 35-2, A drain hole, 36 and a filter screen.
Detailed Description
The invention is explained in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1-5, an automatic colliery environmental protection dust collecting equipment of intelligence, including platform 1, embedding case 2, recess 3, dust absorption arched door 4, solar panel 5, control panel 6, ventilation window 7, transmission device 8, platform 1 is four sides rectangle structure and bottom installs the embedding case 2 of rectangle structure, 1 top mid-mounting of platform has the recess 3 and the top of rectangle structure to install bolted dust absorption arched door 4, 4 top mid-mounting of dust absorption arched door has bolted connection's solar panel 5, 4 positive terminal surface mid-mounting of dust absorption arched door has embedded control panel 6 and the bottom to open ventilation window 7 that has the symmetric distribution, 4 inboard left ends of dust absorption arched door are installed bolted transmission device 8.
Embedded case 2 internally mounted has support device 9, slide switch controlling means 10, dust collection device 11, dust collection box 12, hydraulic pressure elevating gear 13 of sinking, 3 internally mounted of recess has reciprocating type support device 9 and the bottom of sinking to install slide switch controlling means 10, the dust collection device 11 of bolt fastening is installed to slide switch controlling means 10 bottom, dust collection device 11 rear end is installed dust collection box 12 and the bottom and is installed the hydraulic pressure elevating gear 13 of bolt fastening.
Dust absorption arched door 4 includes shell 14, atomizing sprinkler 15, raceway 16, pressure device 17, integrated control box 18, battery 19, shell 14 is domes and inboard atomizing sprinkler 15 of installing the symmetric distribution of formula, atomizing sprinkler 15 passes through threaded connection to be fixed at raceway 16 inboardly, pressure device 17 is installed to raceway 16 rear end, pressure device 17 passes through the electric wire and is connected with integrated control box 18 of control panel 6 rear end, integrated control box 18 is connected and is connected solar panel 5 through electric wire and battery 19.
The sinking supporting device 9 comprises a supporting partition plate 20, a plug-in connector 21, a plug-in box 22, a threading pipe 23, a junction box 24, a telescopic rod 25 and a spring 26, the supporting partition plate 20 is of a four-side rectangular structure, the two ends of the bottom of the supporting partition plate are provided with the symmetrical plug-in connectors 21 fixed by bolts, the plug-in connectors 21 are connected with the junction box 24 through the threading pipe 23 and the plug-in box 22 in sliding connection, the junction box 24 is connected with an integrated controller 18 through electric wires, the bottom of the supporting partition plate 20 is provided with the telescopic rods 25 which are symmetrically distributed in four equal intervals and connected through the bolts, and the circumferential surface of the bottom of the telescopic rod 25 is sleeved with the spring 26.
The dust collecting device 11 comprises a collecting tray 27, a baffle 28, a hinged joint 29, a support frame 30, a hydraulic oil tank 31, a shunting device 32, a hydraulic cylinder 33, a dust collecting box body 34, a dust inlet 34-1, a drawing box 35, a handle 35-1, a drain hole 35-2 and a filter screen 36, wherein the collecting tray 27 is of a four-side rectangular structure, the rear part of the top end of the collecting tray 27 is provided with the triangular block baffle 28 which is symmetrically distributed, the hinged joint 29 which is fixed by bolts is arranged at the rear end of the bottom of the collecting tray 27 and is hinged and fixed with the support frame 30, the hydraulic oil tank 31 and the shunting device 32 are arranged at the bottom of the support frame 30, the shunting device 32 is connected with the hydraulic cylinder 33 through a pipeline, the hydraulic cylinder 33 is connected with the collecting tray 27 through a flange plate, the middle part of the rear end of the collecting tray 27 is provided with the dust collecting box body 34 and the top of the positive end surface is provided with the dust inlet 34-1, the bottom of the right end of the dust collection box body 34-1 is provided with a draw-pull box 35 in sliding connection, the middle part of the right end of the draw-pull box 35 is provided with a handle 35-1 in threaded connection, a drain hole 35-2 is formed in the middle part of the right end of the draw-pull box 35, and the top end of the drain hole 35-2 is paved with a filter screen 36 with a rectangular structure.
The working principle of the invention is as follows: inside solar energy conversion electric energy storage to the battery through solar panel, then drive transport vehicle to the recess top at platform middle part, the telescopic link shrink of the support device bottom that sinks of recess inside afterwards removes to the bottom then the bayonet joint, the jack box can be pegged graft the cooperation and realize the circular telegram and start the watering dust removal with signal by the terminal box by control transmission device and atomizing sprinkler via the through wires pipe, dust in the air descends to the support flat board and falls into the collecting tray along the hole in the effect of atomizing tiny drop of water, hydraulic lifting device rises when the ponding of mixing the particulate matter is too much and drives articulated fixed collecting tray and flow into collection dust box body with sewage and through the baffle water conservancy diversion, sewage flows into behind the collection dust box body and filters through the filter screen of pull incasement side, rivers discharge through the wash port afterwards.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.
Claims (5)
1. The utility model provides an automatic colliery environmental protection dust collecting equipment of intelligence, includes platform (1), embedding case (2), recess (3), dust absorption arched door (4), solar panel (5), control panel (6), ventilation window (7), transmission device (8), its characterized in that: platform (1) installs embedding case (2) of rectangle structure for four sides rectangle structure and bottom, platform (1) top middle part is opened recess (3) that have the rectangle structure and top and is installed bolted dust absorption arched door (4), dust absorption arched door (4) top mid-mounting has bolted connection's solar panel (5), dust absorption arched door (4) positive terminal surface mid-mounting has embedded control panel (6) and bottom to open ventilation window (7) that have the symmetrical formula to distribute, bolt fastening's transmission device (8) are installed to dust absorption arched door (4) inboard left end.
2. The intelligent automatic environment-friendly coal mine dust removal device as claimed in claim 1, wherein: embedded case (2) internally mounted has support device (9), slide switch controlling means (10), dust collection device (11), dust collection box (12), hydraulic pressure elevating gear (13) of sinking, recess (3) internally mounted has reciprocating type support device (9) and the bottom of sinking to install slide switch controlling means (10), bolt fastening's dust collection device (11) is installed to slide switch controlling means (10) bottom, dust collection device (11) rear end is installed dust collection box (12) and the bottom and is installed bolt fastening's hydraulic pressure elevating gear (13).
3. The intelligent automatic environment-friendly coal mine dust removal device as claimed in claim 1, wherein: dust absorption arched door (4) include shell (14), atomizing sprinkler (15), raceway (16), pressure device (17), integrated control case (18), battery (19), shell (14) are atomizing sprinkler (15) that the symmetry formula distributes for domes and inboard, atomizing sprinkler (15) are fixed at raceway (16) inboardly through threaded connection, pressure device (17) are installed to raceway (16) rear end, pressure device (17) are connected through integrated control case (18) of electric wire and control panel (6) rear end, integrated control case (18) are connected and are connected solar panel (5) through electric wire and battery (19).
4. The intelligent automatic environment-friendly coal mine dust removal device as claimed in claim 1, wherein: support device (9) subside includes supporting baffle (20), bayonet joint (21), jack box (22), threading pipe (23), terminal box (24), telescopic link (25), spring (26), supporting baffle (20) are four sides rectangle structure and bottom both ends install bolt fastening's symmetrical formula jack head (21), jack head (21) and jack box (22) sliding connection of bottom and be connected with terminal box (24) through threading pipe (23), terminal box (24) are connected with integrated control ware (18) through the electric wire, telescopic link (25) of four equidistance symmetric distributions are installed to supporting baffle (20) bottom and are passed through bolted connection, telescopic link (25) bottom circumference surface has cup jointed spring (26).
5. The intelligent automatic environment-friendly coal mine dust removal device as claimed in claim 1, wherein: the dust collecting device (11) comprises a collecting disc (27), a baffle (28), a hinge joint (29), a supporting frame (30), a hydraulic oil tank (31), a shunting device (32), a hydraulic cylinder (33), a dust collecting box body (34), a dust inlet (34-1), a drawing box (35), a handle (35-1), a drain hole (35-2) and a filter screen (36), wherein the collecting disc (27) is of a four-side rectangular structure, the rear part of the top end of the collecting disc (27) is provided with symmetrically distributed triangular block baffles (28), the hinge joint (29) fixed by bolts is arranged at the rear end of the bottom of the collecting disc (27) and is hinged and fixed with the supporting frame (30), the hydraulic oil tank (31) is arranged at the bottom of the supporting frame (30), the shunting device (32) is connected with the hydraulic cylinder (33) through a pipeline, the hydraulic cylinder (33) is connected with the collecting disc (27) through a flange plate, the dust collecting device is characterized in that a dust collecting box body (34) is installed in the middle of the rear end of the collecting disc (27), a dust inlet (34-1) is formed in the top of the positive end face of the dust collecting box body (34-1), a sliding connection drawing box (35) is installed at the bottom of the right end of the dust collecting box body (34-1), a handle (35-1) in threaded connection is installed in the middle of the right end of the drawing box (35), a drain hole (35-2) is formed in the handle (35-1) in threaded connection, and a filter screen (36) with a rectangular structure is laid on the top end of the drain hole (35-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111032935.4A CN113750699A (en) | 2021-09-03 | 2021-09-03 | Intelligent automatic environment-friendly dust removal equipment for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111032935.4A CN113750699A (en) | 2021-09-03 | 2021-09-03 | Intelligent automatic environment-friendly dust removal equipment for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113750699A true CN113750699A (en) | 2021-12-07 |
Family
ID=78792954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111032935.4A Withdrawn CN113750699A (en) | 2021-09-03 | 2021-09-03 | Intelligent automatic environment-friendly dust removal equipment for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113750699A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105457795A (en) * | 2015-12-31 | 2016-04-06 | 重庆房地产职业学院 | Full automatic vehicle dust removing device |
| US20170122106A1 (en) * | 2015-10-29 | 2017-05-04 | Yoginder P. Chugh | Spray System for Dust Control on a Mining Machine |
| CN109367420A (en) * | 2018-09-17 | 2019-02-22 | 张冰冰 | A kind of charging pile applied to new-energy automobile |
| CN208787170U (en) * | 2018-09-04 | 2019-04-26 | 泰州市汇顶机械制造有限公司 | A kind of coal mine dust collecting |
| CN211116091U (en) * | 2019-05-08 | 2020-07-28 | 谷晓亮 | Dust collector for coal mine |
| CN211223371U (en) * | 2019-11-18 | 2020-08-11 | 成都新豪鼎盛建材有限公司 | Concrete production is with car belt cleaning device |
| CN112391983A (en) * | 2020-10-28 | 2021-02-23 | 何依密 | High-efficient dust collector is used in road construction |
| CN113020213A (en) * | 2021-03-08 | 2021-06-25 | 张丹丹 | Solid waste pyrolysis treatment and purification device |
| CN214050976U (en) * | 2020-10-28 | 2021-08-27 | 上海钒钠特环保制品有限公司 | Dust collecting device of textile processing equipment |
| CN214084176U (en) * | 2021-08-01 | 2021-08-31 | 成都双平物流有限公司 | Based on for coal transport vechicle washing unit |
-
2021
- 2021-09-03 CN CN202111032935.4A patent/CN113750699A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170122106A1 (en) * | 2015-10-29 | 2017-05-04 | Yoginder P. Chugh | Spray System for Dust Control on a Mining Machine |
| CN105457795A (en) * | 2015-12-31 | 2016-04-06 | 重庆房地产职业学院 | Full automatic vehicle dust removing device |
| CN208787170U (en) * | 2018-09-04 | 2019-04-26 | 泰州市汇顶机械制造有限公司 | A kind of coal mine dust collecting |
| CN109367420A (en) * | 2018-09-17 | 2019-02-22 | 张冰冰 | A kind of charging pile applied to new-energy automobile |
| CN211116091U (en) * | 2019-05-08 | 2020-07-28 | 谷晓亮 | Dust collector for coal mine |
| CN211223371U (en) * | 2019-11-18 | 2020-08-11 | 成都新豪鼎盛建材有限公司 | Concrete production is with car belt cleaning device |
| CN112391983A (en) * | 2020-10-28 | 2021-02-23 | 何依密 | High-efficient dust collector is used in road construction |
| CN214050976U (en) * | 2020-10-28 | 2021-08-27 | 上海钒钠特环保制品有限公司 | Dust collecting device of textile processing equipment |
| CN113020213A (en) * | 2021-03-08 | 2021-06-25 | 张丹丹 | Solid waste pyrolysis treatment and purification device |
| CN214084176U (en) * | 2021-08-01 | 2021-08-31 | 成都双平物流有限公司 | Based on for coal transport vechicle washing unit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211207 |