CN110905582A - Colliery is dust collector in pit - Google Patents
Colliery is dust collector in pit Download PDFInfo
- Publication number
- CN110905582A CN110905582A CN201911233235.4A CN201911233235A CN110905582A CN 110905582 A CN110905582 A CN 110905582A CN 201911233235 A CN201911233235 A CN 201911233235A CN 110905582 A CN110905582 A CN 110905582A
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- Prior art keywords
- dust removal
- bin
- rotating shaft
- removal bin
- connecting rod
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- 239000000428 dust Substances 0.000 title claims abstract description 116
- 239000003245 coal Substances 0.000 claims abstract description 41
- 239000004744 fabric Substances 0.000 claims abstract description 26
- 239000006185 dispersion Substances 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 5
- 239000002893 slag Substances 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000007921 spray Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000003818 cinder Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- 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
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (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 relates to the field of mining equipment, in particular to a coal mine underground dust removal device which comprises a first dust removal bin, an air inlet, a cloth bag assembly, a second dust removal bin and an air outlet, wherein the air inlet is arranged on the side wall of the first dust removal bin, the cloth bag assembly is arranged in the first dust removal bin, the side wall of the first dust removal bin is hinged with a connecting rod, the end part of the connecting rod is fixedly connected with a hammer head, the middle part of the connecting rod is fixedly connected with a tension spring, one side of the connecting rod is provided with a cam, the right side wall of the first dust removal bin is provided with a gas pipe, the bottom of the second dust removal bin is provided with a hollow rotating shaft, the lower end of the hollow rotating shaft is provided with a rotary joint, the top of the hollow rotating shaft is provided with a dispersion disc, coal mine underground coal slag is prevented from entering the first dust removal bin by utilizing a grating plate, dust-containing gas is, and pumping the gas in the first dedusting bin into the second dedusting bin by using a suction pump to further remove dust for the gas.
Description
Technical Field
The invention relates to the field of mining equipment, in particular to a coal mine underground dust removal device.
Background
Coal mines are areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and opencast coal mines. When the coal seam is far from the ground surface, a tunnel is usually dug to the underground, so that the coal is a mineworker coal mine. When the coal seam is very close to the earth surface, the coal is generally excavated by directly stripping the earth surface, which is an open pit coal mine. The vast majority of coal mines in China belong to underground coal mines. Coal mines encompass a large area above ground and below ground as well as associated facilities. Coal mines are reasonable spaces excavated by humans when excavating geological formations rich in coal and generally include roadways, wells, and mining surfaces, among others.
In the coal mine underground mining operation, underground air needs to be dedusted, and the existing underground dedusting device is single in structure and low in dedusting efficiency.
Disclosure of Invention
The invention aims to provide a coal mine underground dust removal device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a coal mine underground dust removal device comprises a first dust removal bin, an air inlet, a cloth bag assembly, a second dust removal bin and an exhaust port, wherein the air inlet is arranged on the side wall of the first dust removal bin, the cloth bag assembly is arranged in the first dust removal bin, the left end of the cloth bag assembly is fixedly connected with the inner wall of the first dust removal bin, the side wall of the first dust removal bin is hinged with a connecting rod, the end part of the connecting rod is fixedly connected with a hammer head, the middle part of the connecting rod is fixedly connected with a tension spring, the end part of the tension spring is connected with the inner wall of the first dust removal bin, one side of the connecting rod is provided with a cam, the cam is rotatably connected with the inner side wall of the first dust removal bin through a rotating shaft, the right side wall of the first dust removal bin is provided with an air pipe, the bottom of the second dust removal bin is provided with a hollow rotating shaft, the lower end of the hollow rotating shaft penetrates through the bottom of a grating plate to extend to the, the right-hand member of gas-supply pipe is connected with the joint that leads to soon, and the dispersion impeller is installed at the top of hollow rotating shaft, the inside cavity of dispersion impeller, hollow rotating shaft and dispersion impeller intercommunication, the last surface distribution of dispersion impeller has the shower nozzle.
Further: and the air inlet is provided with a grating plate.
Further: the top in first dust removal storehouse is installed the slide rail, and the right-hand member and the slide rail sliding connection of sack subassembly install the spring on the inner wall in first dust removal storehouse, and the tip of spring is connected with the right-hand member of sack subassembly.
Further: the bottom of the first dust removal bin is detachably provided with a collection box.
Further: a driving motor used for driving the cam to rotate is installed on the outer side wall of the first dust removal bin, and the cam is abutted to the middle of the connecting rod.
Further: and the middle part of the gas transmission pipe is provided with a suction pump.
Further: and an exhaust port is arranged at the top of the second dust removal bin.
Further: the bottom fixedly connected with motor in second dust removal storehouse, the axle of motor stretches into in the second dust removal storehouse, and the axle of motor stretches the end and is connected with hollow rotating shaft through the drive belt.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects: in the embodiment of the invention, the dust-containing gas enters the first dust removing bin through the gas inlet, the grate plate is used for preventing coal mine underground coal slag from entering the first dust removing bin, the cloth bag assembly is used for preliminarily filtering the dust-containing gas to remove dust with larger particles in the dust-containing gas, the gas in the first dust removing bin is pumped into the second dust removing bin by the air pump to dissolve impurities in water, the gas is further dedusted, in the dedusting process, the motor drives the dispersion disc to rotate, so that the gas discharged by the spray head is contacted with water more fully and mixed more uniformly, the dedusting efficiency is improved, when the device is used for a long time, dust is easy to accumulate in the cloth bag assembly, the cloth bag assembly is knocked by the hammer head, the cloth bag assembly is cleaned, the trouble of manually cleaning the cloth bag assembly is omitted, the labor amount of workers is reduced, and the problem of low dust removal efficiency of the existing underground dust removal device is solved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment 1 of a dust removal device in a coal mine;
FIG. 2 is a schematic structural view of a connecting rod in an embodiment 1 of a dust removal device for an underground coal mine;
FIG. 3 is a perspective view of a dispersion plate in the embodiment 1 of the dust removing apparatus for an underground coal mine.
The reference numerals in the schematic drawings illustrate: 1-a first dust removal bin; 2-an air inlet; 3-a grid plate; 4-a cloth bag component; 5-a slide rail; 6-a collection box; 7-a connecting rod; 8-hammer head; 9-a cam; 10-a tension spring; 11-gas pipe; 12-an air pump; 13-a second dust removal bin; 14-a hollow rotating shaft; 15-a dispersion tray; 16-a spray head; 17-spin-on joint; 18-a motor; 19-a transmission belt; 20-exhaust port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention, and the present invention is further described with reference to the embodiments below.
Example 1
Referring to fig. 1-3, in the embodiment of the present invention, a coal mine underground dust removing device includes a first dust removing bin 1, an air inlet 2, a cloth bag assembly 4, a second dust removing bin 13 and an air outlet 20, the side wall of the first dust removing bin 1 is provided with the air inlet 2, dust-containing gas enters the first dust removing bin 1 through the air inlet 2, the air inlet 2 is provided with a grating plate 3 for preventing coal mine underground coal cinder from entering the first dust removing bin 1, the first dust removing bin 1 is internally provided with the cloth bag assembly 4, the left end of the cloth bag assembly 4 is fixedly connected with the inner wall of the first dust removing bin 1, the top of the first dust removing bin 1 is provided with a slide rail 5, the right end of the cloth bag assembly 4 is slidably connected with the slide rail 5, the right end of the cloth bag assembly 4 can slide left and right along the slide rail 5, the inner wall of the first dust removing bin 1 is provided with a spring, the end of the spring is connected, the bottom of the first dedusting bin 1 is detachably provided with a collecting box 6, the collecting box 6 is used for collecting dust in the first dedusting bin 1, the side wall of the first dedusting bin 1 is hinged with a connecting rod 7, the end part of the connecting rod 7 is fixedly connected with a hammer 8, the middle part of the connecting rod 7 is fixedly connected with a tension spring 10, the end part of the tension spring 10 is connected with the inner wall of the first dedusting bin 1, one side of the connecting rod 7 is provided with a cam 9, the cam 9 is rotatably connected with the inner side wall of the first dedusting bin 1 through a rotating shaft, the outer side wall of the first dedusting bin 1 is provided with a driving motor for driving the cam 9 to rotate, the cam 9 is abutted against the middle part of the connecting rod 7, when the cloth bag component 4 needs to be cleaned, the cam 9 is started, in the rotating process of the cam 9, when the bulge part of the cam 9 is connected with the connecting rod 7, the connecting rod 7 is driven to rotate, so, the cloth bag component 4 is vibrated, dust remained in the cloth bag component 4 falls down and falls into the collection box 6 to be collected, the trouble of manually cleaning the cloth bag component 4 is eliminated, the labor capacity of workers is reduced, the right side wall of the first dust removal bin 1 is provided with the air conveying pipe 11, the middle part of the air conveying pipe 11 is provided with the air suction pump 12, the bottom of the second dust removal bin 13 is provided with the hollow rotating shaft 14, the lower end of the hollow rotating shaft 14 penetrates through the bottom of the grid plate 3 to extend to the lower part of the second dust removal bin 13, the hollow rotating shaft 14 is rotatably connected with the second dust removal bin 13, the lower end of the hollow rotating shaft 14 is provided with the rotary joint 17, the right end of the air conveying pipe 11 is connected with the rotary joint 17, the top of the hollow rotating shaft 14 is provided with the dispersion disc 15, the dispersion disc 15 is hollow inside, the hollow rotating shaft 14 is communicated with the dispersion disc 15, the upper surface of the dispersion disc 15 is provided with the spray heads 16, and the air in, carry to dispersion impeller 15, and then discharge through shower nozzle 16, clean water has been deposited to the inside in second dust removal storehouse 13, and dusty gas passes through shower nozzle 16 and discharges into the aquatic, and gaseous and water fully contact to make the impurity in the gas dissolve in the water, further remove dust to gas, gas vent 20 is installed at the top in second dust removal storehouse 13, and gas after the dust removal passes through gas vent 20 and discharges.
Example 2
On embodiment 1's basis, the bottom fixedly connected with motor 18 of second dust removal storehouse 13, the axle of motor 18 stretches into in the second dust removal storehouse 13, and the axle of motor 18 stretches the end and is connected with hollow rotating shaft 14 through drive belt 19, and starter motor 18 drives hollow rotating shaft 14 through drive belt 19 and rotates to drive dispersion impeller 15 and rotate, make 16 combustion gas of shower nozzle and water contact more abundant, mix more evenly, improve dust collection efficiency.
With reference to the embodiment 1 and the embodiment 2, the working principle of the invention is as follows: the dust-containing gas enters the first dust removal bin 1 through the gas inlet 2, the gas inlet 2 is provided with the grating plate 3 to prevent coal mine underground coal cinder from entering the first dust removal bin 1, the cloth bag assembly 4 is used for primarily filtering the dust-containing gas to remove dust with larger particles in the dust-containing gas, the air in the first dust removal bin 1 is pumped out by the air pump 12 and is conveyed to the dispersion disc 15 to be discharged through the spray head 16, the inside of the second dust removal bin 13 is stored with clean water, the gas is fully contacted with the water, so that impurities in the gas are dissolved in the water to further remove dust for the gas, the top of the second dust removal bin 13 is provided with the gas outlet 20, the gas after dust removal is discharged through the gas outlet 20, in the dust removal process, the motor 18 is started, the hollow rotating shaft 14 is driven to rotate through the driving belt 19, so as to drive the dispersion disc 15 to rotate, and the gas discharged by the spray head 16 is more fully contacted with the water, mix more evenly, improve the dust collection efficiency, use this device for a long time, the dust is piled up in sack subassembly 4 easily, influence sack subassembly 4's dust collection efficiency, when needs are cleared up sack subassembly 4, start cam 9, rotate the in-process at cam 9, when the bellying of cam 9 meets with connecting rod 7, it rotates to drive connecting rod 7, thereby drive tup 8 and rotate, utilize tup 8 to strike sack subassembly 4, make sack subassembly 4 produce the vibration, the dust of remaining in sack subassembly 4 drops, fall into and collect in collecting box 6, the trouble of artifical clearance sack subassembly 4 has been saved, the amount of labour of the workman has been reduced.
It needs to explain especially, first dust removal storehouse 1, air inlet 2, sack subassembly 4, second dust removal storehouse 13 and gas vent 20 are prior art's application in this application, and connecting rod, tup, cam, rotatable dispersion impeller are the innovation point of this application, and it has effectively solved the problem that current dust collector in the pit dust collection efficiency is low.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A coal mine underground dust removal device comprises a first dust removal bin (1), an air inlet (2), a cloth bag assembly (4), a second dust removal bin (13) and an exhaust port (20), and is characterized in that the air inlet (2) is installed on the side wall of the first dust removal bin (1), the cloth bag assembly (4) is installed inside the first dust removal bin (1), the left end of the cloth bag assembly (4) is fixedly connected with the inner wall of the first dust removal bin (1), the side wall of the first dust removal bin (1) is hinged with a connecting rod (7), the end part of the connecting rod (7) is fixedly connected with a hammer head (8), the middle part of the connecting rod (7) is fixedly connected with a tension spring (10), the end part of the tension spring (10) is connected with the inner wall of the first dust removal bin (1), a cam (9) is arranged on one side of the connecting rod (7), the cam (9) is rotatably connected with the inner side wall of the first dust removal, air delivery pipe (11) are installed to the right side wall in first dust removal storehouse (1), hollow rotating shaft (14) are installed to the bottom in second dust removal storehouse (13), the bottom that grid plate (3) were passed to the lower extreme of hollow rotating shaft (14) extends to the below in second dust removal storehouse (13), hollow rotating shaft (14) rotate with second dust removal storehouse (13) and are connected, the lower extreme of hollow rotating shaft (14) is installed and is led to joint (17) soon, the right-hand member of air delivery pipe (11) is connected with lead to joint (17) soon, dispersion impeller (15) are installed at the top of hollow rotating shaft (14), dispersion impeller (15) inside cavity, hollow rotating shaft (14) and dispersion impeller (15) intercommunication, the last surface distribution of dispersion impeller (15) has shower nozzle (16).
2. The coal mine underground dust removal device according to claim 1, characterized in that a grating plate (3) is installed on the air inlet (2).
3. The coal mine underground dust removal device according to claim 1, wherein a slide rail (5) is installed at the top of the first dust removal bin (1), the right end of the cloth bag assembly (4) is slidably connected with the slide rail (5), a spring is installed on the inner wall of the first dust removal bin (1), and the end of the spring is connected with the right end of the cloth bag assembly (4).
4. The coal mine underground dedusting device according to the claim 3, characterized in that the bottom of the first dedusting bin (1) is detachably provided with a collecting box (6).
5. The coal mine underground dust removal device according to claim 1, characterized in that a driving motor for driving a cam (9) to rotate is installed on the outer side wall of the first dust removal bin (1), and the cam (9) is abutted to the middle of the connecting rod (7).
6. The coal mine underground dust removal device according to claim 1, wherein an air pump (12) is installed in the middle of the air conveying pipe (11).
7. The coal mine underground dedusting device according to the claim 1, characterized in that the top of the second dedusting bin (13) is provided with an exhaust port (20).
8. The underground coal mine dust removal device according to any one of claims 1 to 7, wherein a motor (18) is fixedly connected to the bottom of the second dust removal bin (13), a shaft extension end of the motor (18) extends into the second dust removal bin (13), and the shaft extension end of the motor (18) is connected with the hollow rotating shaft (14) through a transmission belt (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911233235.4A CN110905582A (en) | 2019-12-05 | 2019-12-05 | Colliery is dust collector in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911233235.4A CN110905582A (en) | 2019-12-05 | 2019-12-05 | Colliery is dust collector in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110905582A true CN110905582A (en) | 2020-03-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911233235.4A Pending CN110905582A (en) | 2019-12-05 | 2019-12-05 | Colliery is dust collector in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110905582A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623458A (en) * | 2020-06-01 | 2020-09-04 | 海宁市富连机械有限公司 | Ventilation equipment for food processing field |
| CN111871127A (en) * | 2020-08-01 | 2020-11-03 | 江西千多多家具有限公司 | Industrial waste gas treatment system |
| CN112387049A (en) * | 2020-11-12 | 2021-02-23 | 南京建当化工科技有限公司 | Environment-friendly treatment method for dust-containing gas generated by milling active limestone |
| CN112483161A (en) * | 2020-11-27 | 2021-03-12 | 株洲天桥舜臣选煤机械有限责任公司 | Colliery is spraying dust device in pit |
| CN112604402A (en) * | 2020-12-03 | 2021-04-06 | 扬州一川镍业有限公司 | Tail gas treatment equipment applied to nickel pig iron production and use method thereof |
| CN112691489A (en) * | 2021-01-27 | 2021-04-23 | 刘美琴 | A fountain air purification equipment for exhaust-gas treatment of mill |
| CN113509807A (en) * | 2021-06-22 | 2021-10-19 | 乌拉特中旗浩通清洁能源有限公司 | Dust pelletizing system is used in coal washing processing |
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| KR20140078238A (en) * | 2012-12-17 | 2014-06-25 | 한국세라믹기술원 | Dust collector for removing high temperature dust |
| CN204017564U (en) * | 2014-07-29 | 2014-12-17 | 溧阳市宝山机械有限公司 | New Mine air box type pulse bag dust removal unit |
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| CN205578024U (en) * | 2016-01-06 | 2016-09-14 | 贵州思恒风机科技有限公司 | A dust collector for tunnel |
| CN108379990A (en) * | 2018-05-14 | 2018-08-10 | 德清菁英信息科技有限公司 | A kind of ventilation equipment dust-extraction unit |
| CN108643957A (en) * | 2018-05-10 | 2018-10-12 | 山东工商学院 | A kind of dust removing down-hole of coal mine device |
| CN109630181A (en) * | 2018-10-19 | 2019-04-16 | 皇家动力(武汉)有限公司 | A kind of mining ventilation equipment with dedusting function |
| CN109939514A (en) * | 2019-04-29 | 2019-06-28 | 惠州市奇思创想科技有限公司 | A kind of dust-removing waste gas processing unit |
| CN110152405A (en) * | 2018-04-04 | 2019-08-23 | 淮安智品企业管理有限公司 | A kind of secondary lead smelting furnace exhaust processing unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2086771C1 (en) * | 1995-08-29 | 1997-08-10 | Российский научно-исследовательский институт горно-спасательного дела | Device for suppressing fires in underground workings |
| KR20140078238A (en) * | 2012-12-17 | 2014-06-25 | 한국세라믹기술원 | Dust collector for removing high temperature dust |
| CN204017564U (en) * | 2014-07-29 | 2014-12-17 | 溧阳市宝山机械有限公司 | New Mine air box type pulse bag dust removal unit |
| CN204523052U (en) * | 2015-04-13 | 2015-08-05 | 天津蓝巢电力检修有限公司 | A kind of high-effective dust-removing coal breaker |
| CN205578024U (en) * | 2016-01-06 | 2016-09-14 | 贵州思恒风机科技有限公司 | A dust collector for tunnel |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623458A (en) * | 2020-06-01 | 2020-09-04 | 海宁市富连机械有限公司 | Ventilation equipment for food processing field |
| CN111623458B (en) * | 2020-06-01 | 2021-10-29 | 海宁市富连机械有限公司 | Ventilation equipment for food processing field |
| CN111871127A (en) * | 2020-08-01 | 2020-11-03 | 江西千多多家具有限公司 | Industrial waste gas treatment system |
| CN112387049A (en) * | 2020-11-12 | 2021-02-23 | 南京建当化工科技有限公司 | Environment-friendly treatment method for dust-containing gas generated by milling active limestone |
| CN112483161A (en) * | 2020-11-27 | 2021-03-12 | 株洲天桥舜臣选煤机械有限责任公司 | Colliery is spraying dust device in pit |
| CN112604402A (en) * | 2020-12-03 | 2021-04-06 | 扬州一川镍业有限公司 | Tail gas treatment equipment applied to nickel pig iron production and use method thereof |
| CN112691489A (en) * | 2021-01-27 | 2021-04-23 | 刘美琴 | A fountain air purification equipment for exhaust-gas treatment of mill |
| CN113509807A (en) * | 2021-06-22 | 2021-10-19 | 乌拉特中旗浩通清洁能源有限公司 | Dust pelletizing system is used in coal washing processing |
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Application publication date: 20200324 |
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