CN112253210A - Umbrella-shaped air curtain air supply and dust control device for fully mechanized excavation working surface of coal mine - Google Patents
Umbrella-shaped air curtain air supply and dust control device for fully mechanized excavation working surface of coal mine Download PDFInfo
- Publication number
- CN112253210A CN112253210A CN202011144257.6A CN202011144257A CN112253210A CN 112253210 A CN112253210 A CN 112253210A CN 202011144257 A CN202011144257 A CN 202011144257A CN 112253210 A CN112253210 A CN 112253210A
- Authority
- CN
- China
- Prior art keywords
- umbrella
- air
- air curtain
- control device
- dust control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000428 dust Substances 0.000 title claims abstract description 87
- 239000003245 coal Substances 0.000 title claims abstract description 25
- 238000009412 basement excavation Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 238000005065 mining Methods 0.000 claims description 13
- 231100000331 toxic Toxicity 0.000 abstract description 4
- 230000002588 toxic effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 13
- 238000009792 diffusion process Methods 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder 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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
-
- 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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- 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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/14—Air partitions; Air locks
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ventilation (AREA)
Abstract
The invention discloses an umbrella-shaped air curtain air supply and dust control device for a fully mechanized excavation face of a coal mine, which comprises an air supply device and the umbrella-shaped air curtain dust control device, wherein the air supply device and the umbrella-shaped air curtain dust control device are fixedly connected in series; the umbrella-shaped air curtain dust control device is used for carrying out regional dust control through the umbrella-shaped air curtain. The invention aims to provide an umbrella-shaped air curtain air supply dust control device for a fully mechanized excavation face of a coal mine, which aims to solve the problem that an overlapped area of air supply and dust removal is lack of fresh air flow and toxic and harmful gas is easy to accumulate in the area.
Description
Technical Field
The invention relates to the technical field of coal mine air supply and dust removal, in particular to an umbrella-shaped air curtain air supply and dust control device for a coal mine fully mechanized excavation working surface.
Background
The fully mechanized excavation face of the coal mine in China is one of the most serious places with dust pollution in a plurality of operation places of the coal mine, and the dust concentration of the fully mechanized excavation face can reach 1000mg/m generally according to statistics under the condition that the effect of dust prevention measures is not ideal3The above.
At present, the main measure of dust prevention and control of the fully mechanized excavation face is to control dust at the head of the face through a dust control device and then to extract and purify dust-containing airflow through a dust remover. The existing dust control adopts a wall-attached air duct, and the wall-attached air duct has the problems of uneven dust control airflow, disordered airflow flow field and limited dust control capability and action range. In addition, the dust control device of the coanda air duct does not fully consider the problem that the overlapped area of air supply and dust removal lacks fresh air flow, and the accumulation of toxic and harmful gases in the area is easily caused.
Disclosure of Invention
The invention provides an umbrella-shaped air curtain air supply dust control device for a fully mechanized excavation working surface of a coal mine, which aims to solve the problem that an overlapped area of air supply and dust removal lacks fresh air flow.
In order to achieve the purpose, the invention adopts the following technical scheme.
The utility model provides a colliery is combined and is dug umbelliform air curtain air feed accuse dirt device for working face, includes air feed device and umbelliform air curtain accuse dirt device, air feed device and the fixed concatenation of umbelliform air curtain accuse dirt device, air feed device is provided with first slant air outlet, the export of first slant air outlet inclines towards the entry of air feed device, umbelliform air curtain accuse dirt device is used for carrying out regional accuse dirt through umbelliform air curtain.
According to the invention adopting the scheme, the air supply device is arranged to provide enough fresh air flow for the fully-mechanized excavating surface, and meanwhile, the first oblique air outlet is arranged to blow partial air flow to the inlet direction of the air supply device, so that the fresh air flow is provided for the overlapping area of air supply and dust removal, and the accumulation of toxic and harmful gas in the overlapping area is avoided. The umbrella-shaped air curtain dust control device is a device for forming exhaust air into an umbrella-shaped air curtain, and prevents the backward diffusion of head-on dust through the umbrella-shaped air curtain to realize regional dust control, so that the disordered diffusion of dust on the fully mechanized excavation face is effectively controlled to play a role in controlling the dust, and the dust control effect of the fully mechanized excavation face can be improved by matching with a dust extraction purification system.
Preferably, the air supply device comprises an air supply barrel, a telescopic air barrel and an air outlet barrel which are connected in sequence, and the first inclined air outlet is arranged on the air supply barrel. The length of the telescopic air cylinder section is adjusted to meet the requirement that the device is installed in working face environments with different lengths, and the first inclined air outlet is arranged on the air supply air cylinder to be closer to a dust removal overlapping area, so that the effect of supplying fresh air to the overlapping area is improved.
Preferably, the first inclined air outlet is of an air volume adjustable structure, and the first inclined air outlet and the air supply cylinder are inclined at an angle of 30-60 degrees. The air quantity of the first inclined air outlet is adjusted through the air quantity adjusting structure, so that the air quantity distribution relation between the first inclined air outlet and the umbrella-shaped air curtain dust control device can be changed, and an ideal dust control effect is achieved. Meanwhile, the first inclined air outlet and the air supply cylinder form an angle of 30-60 degrees, so that the air supply cylinder can be reasonably selected according to the field situation of the fully mechanized mining face.
Preferably, the air supply device is further provided with a second inclined air outlet (4), the second inclined air outlet (4) is arranged on the air outlet cylinder (5), the second inclined air outlet (4) is of an air volume adjustable structure, and the second inclined air outlet (4) is inclined towards the outlet direction of the air outlet cylinder and is inclined at an angle of 30-60 degrees with the air outlet cylinder (5). The second oblique air outlet is arranged and is arranged into a structure with adjustable air quantity, the air quantity of the umbrella-shaped air curtain can be further controlled and adjusted, meanwhile, the effect of controlling head-on dust can be enhanced through the air blown out from the second oblique air outlet, and the second oblique air outlet and the air outlet cylinder form an angle of 30-60 degrees so as to be reasonably selected according to the site condition of the fully-mechanized mining face.
Preferably, the umbrella-shaped air curtain dust control device comprises a multi-stage umbrella-shaped air curtain generator, the umbrella-shaped air curtain generator can provide an umbrella-shaped air curtain, and the umbrella surface taper angle of the multi-stage umbrella-shaped air curtain generator is gradually increased according to the airflow direction. The umbrella-shaped air curtain dust control device enlarges the emergent angle step by step through the multi-stage umbrella-shaped air curtain generator to form a multi-stage overlapped umbrella-shaped air curtain taking the position of the umbrella-shaped air curtain generator as a vertex, thereby enhancing the effect of preventing the backward diffusion of the head-on dust. Wherein, the multistage includes two stages, three stages, four stages, and even more stages are arranged according to the requirement.
Preferably, the umbrella-shaped air curtain dust control device sequentially comprises a first-stage umbrella-shaped air curtain generator, a second-stage umbrella-shaped air curtain generator and a third-stage umbrella-shaped air curtain generator according to the direction of air flow, and the three umbrella-shaped air curtain generators are coaxial and are arranged in an axial position adjustable mode. The method is economical and reasonable through proper stages, and can achieve the purpose of good dust control effect.
Preferably, the periphery of each umbrella-shaped air curtain generator is fixedly connected with a plurality of circumferentially distributed limiting sleeves, the limiting sleeves can be axially adjusted to be sleeved on the guide rods, and the guide rods are of cantilever structures, one ends of the cantilever structures are fixed on the air outlet cylinder. The air supply device is connected with the umbrella-shaped air curtain dust control device through the guide rods, the limiting sleeve structure is arranged, so that the umbrella-shaped air curtain generators can be axially adjusted to proper positions along the guide rods, and the space between the adjacent guide rods forms an umbrella-shaped air curtain forming channel.
Preferably, the umbrella cover is arranged on each of the three umbrella-shaped air curtain generators through a framework, each framework comprises a large steel ring, a small steel ring and a supporting rod for supporting the umbrella cover, the large steel rings of each framework are equal in size, and the limiting sleeves are fixedly connected to the large steel rings; the small steel rings are reduced step by step according to the airflow direction. The large steel rings of all levels of umbrella-shaped air curtain generators are equal in size so as to ensure that all levels of umbrella-shaped air curtain generators share the same guide rod, and the small steel rings in the air flow direction are gradually reduced so that all levels of generators can obtain proper air volume.
Preferably, the umbrella face taper angle of the first-stage umbrella-shaped air curtain generator is 40-60 degrees, the umbrella face taper angle of the second-stage umbrella-shaped air curtain generator is 60-90 degrees, and the umbrella face taper angle of the third-stage umbrella-shaped air curtain generator is 90-120 degrees. So as to obtain an ideal multiple-superposition umbrella-shaped air curtain through different values of the umbrella surface cone angle.
Preferably, the shapes of the small steel ring and the large steel ring comprise a polygon, a circle and an ellipse, and the small steel ring and the large steel ring of the same umbrella-shaped air curtain generator are the same in shape. The reasonable shape is selected according to the factors of processing or material selection convenience and the like, so that the economic and reasonable purposes are achieved.
The invention has the beneficial effects that: sufficient fresh air flow is provided for the fully-mechanized excavating surface by arranging the air supply device, meanwhile, partial air flow is blown to the inlet direction of the air supply device by arranging the first inclined air outlet, the fresh air flow is provided for the overlapping area of air supply and dust removal, and the accumulation of toxic and harmful gas in the overlapping area is avoided. The air quantity of the first inclined air outlet can be adjusted by adjusting the air quantity adjusting structure, so that the air quantity distribution relation between the first inclined air outlet and the umbrella-shaped air curtain dust control device can be changed, and an ideal dust control effect is achieved. Through setting up second slant air outlet to and set up into the adjustable structure of amount of wind with it, can further control and adjust the amount of wind of umbelliform air curtain, also strengthen the control effect to the first powder of meeting. By arranging the umbrella-shaped air curtain dust control device consisting of the multi-stage umbrella-shaped generators, the umbrella surface of the multi-stage umbrella-shaped air curtain generators gradually enlarges the emergent angle along with the wind flow direction, so that the multi-stage overlapped umbrella-shaped air curtain taking the position of the umbrella-shaped air curtain generators as the vertex is formed, and the effect of blocking the backward diffusion of the head-on dust is enhanced. Therefore, the dust control device has an effective dust control effect on controlling the disordered diffusion of the dust on the fully-mechanized excavation face, and can be matched with a dust extraction and purification system to improve the dust control effect of the fully-mechanized excavation face.
Drawings
FIG. 1 is a front view of an umbrella-shaped air curtain air supply and dust control device for a fully mechanized coal mining face of the present invention;
FIG. 2 is a top view of the umbrella-shaped air curtain air supply and dust control device for the fully mechanized coal mining face of the present invention;
fig. 3 is a left side view of the umbrella-shaped air curtain air supply dust control device for the fully mechanized coal mining face of the invention.
Detailed Description
The invention will be further described with reference to the drawings, but the invention is not limited thereby within the scope of the embodiments described.
Reference numerals in the drawings of the specification include: the air supply duct comprises an air supply duct 1, a first oblique air outlet 2, a telescopic air duct 3, a second oblique air outlet 4, an air outlet duct 5, a primary umbrella-shaped air curtain generator 6, a small steel ring 13, a secondary umbrella-shaped air curtain generator 7, a tertiary umbrella-shaped air curtain generator 8, a guide rod 9, a limiting sleeve 10, a supporting rod 11 and a large steel ring 12.
As shown in fig. 1, 2 and 3; an umbrella-shaped air curtain air supply and dust control device for a coal mine fully mechanized excavation working surface comprises an air supply device and an umbrella-shaped air curtain dust control device for generating an umbrella-shaped air curtain, wherein the air supply device and the umbrella-shaped air curtain dust control device are fixedly connected in series, a first inclined air outlet 2 is arranged on the air supply device, and the outlet of the first inclined air outlet 2 inclines towards the inlet of the air supply device; the umbrella-shaped air curtain dust control device is used for carrying out regional dust control through the umbrella-shaped air curtain.
The air supply device of the umbrella-shaped air curtain air supply dust control device for the fully mechanized excavation face of the coal mine further comprises an air supply cylinder 1, a telescopic air cylinder 3 and an air outlet cylinder 5 which are connected in sequence; the first inclined air outlet 2 is arranged on the air supply cylinder 1. The first inclined air outlet 2 is of an air quantity adjustable structure, the adjustable structure can be set into a pull rope structure to adjust the diameter of an outlet on the circumference of the air outlet, so that the air quantity distribution relation of the first inclined air outlet and the umbrella-shaped air curtain dust control device can be changed, the first inclined air outlet 2 and the air supply cylinder 1 are inclined at an angle of 30-60 degrees so as to reasonably select the installation angle according to the site condition of the fully mechanized mining face, and fresh air flow is provided for the area of an overlapped section of air supply and dust removal. Still be provided with second slant air outlet 4 on the air feed device, second slant air outlet 4 sets up on play dryer 5, second slant air outlet 4 is the adjustable structure of amount of wind, and adjustable structure can set to the size that the pull rope structure adjusted the exit diameter on the air outlet circumference, controls and adjusts the amount of wind of umbelliform air curtain, second slant air outlet 4 inclines towards the exit direction of air-out dryer wind, and is 30 ~ 60 angle slope so that rationally select the installation angle according to the comprehensive face site conditions with play dryer 5. The outer surface of the air outlet cylinder is welded with 1 hanging ring, and the whole end of the air outlet cylinder can be hung on the top plate through the hanging ring on the air outlet cylinder 5.
The umbrella-shaped air curtain dust control device arranged on the umbrella-shaped air curtain air supply dust control device for the fully mechanized excavation working face of the coal mine consists of a multi-stage umbrella-shaped air curtain generator, the umbrella-shaped air curtain generator can provide an umbrella-shaped air curtain, and the umbrella surface cone angle of the multi-stage umbrella-shaped air curtain generator is gradually increased according to the air flow direction. The umbrella-shaped air curtain dust control device sequentially comprises a first-stage umbrella-shaped air curtain generator 6, a second-stage umbrella-shaped air curtain generator 7 and a third-stage umbrella-shaped air curtain generator 8 according to the air flow direction, wherein the three umbrella-shaped air curtain generators are coaxial and are arranged in an axial position adjustable mode. Each umbrella-shaped air curtain generator's periphery fixedly connected with a plurality of circumference equipartition stop collar 10, stop collar 10 is in the cantilever structure of play dryer 5 is fixed to guide arm 9 with axially adjustable ground cover, guide arm 9. The umbrella cover is arranged on each of the three umbrella-shaped air curtain generators through a framework, and the framework comprises a large steel ring 12, a small steel ring 13 and a supporting rod 11 for supporting the umbrella cover; the large steel rings 12 of each framework are equal in size, and the limiting sleeves 10 are welded on the large steel rings 12; according to the airflow direction, the three small steel rings 13 are gradually reduced. The umbrella face taper angle of the first-stage umbrella-shaped air curtain generator 6 is 40-60 degrees, the umbrella face taper angle of the second-stage umbrella-shaped air curtain generator 7 is 60-90 degrees, and the umbrella face taper angle of the third-stage umbrella-shaped air curtain generator 8 is 90-120 degrees. The shapes of the small steel ring 13 and the large steel ring 12 comprise a polygon, a circle and an ellipse, and the small steel ring 13 and the large steel ring 12 of the same umbrella-shaped air curtain generator are the same.
In this embodiment, the air-out angle of the umbrella-shaped air curtain generator is gradually enlarged by each stage of the umbrella-shaped air curtain generator, and finally, an umbrella-shaped dust control air curtain with the position of the umbrella-shaped air curtain generator as a vertex is formed, so as to enhance the effect of blocking the backward diffusion of the dust at the head, wherein the umbrella-shaped air curtain dust control device comprises a multi-stage umbrella-shaped air curtain generator, the multi-stage air curtain generator comprises two stages, three stages and four stages, and even more stages are set as required. The number of air curtain generators can be increased or decreased, as limited by other structures or changes in operating conditions.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. An umbrella-shaped air curtain air supply and dust control device for a coal mine fully-mechanized excavation working face is characterized by comprising an air supply device and the umbrella-shaped air curtain dust control device, wherein the air supply device and the umbrella-shaped air curtain dust control device are fixedly connected in series, a first inclined air outlet (2) is formed in the air supply device, and the outlet of the first inclined air outlet (2) inclines towards the inlet of the air supply device; the umbrella-shaped air curtain dust control device is used for carrying out regional dust control through the umbrella-shaped air curtain.
2. The umbrella-shaped air curtain air supply and dust control device for the fully mechanized coal mining face of claim 1, wherein the air supply device comprises an air supply cylinder (1), a telescopic air cylinder (3) and an air outlet cylinder (5) which are connected in sequence; the first inclined air outlet (2) is arranged on the air supply cylinder (1).
3. The umbrella-shaped air curtain air supply and dust control device for the fully mechanized coal mining face of claim 2, wherein the first inclined air outlet (2) is of an air volume adjustable structure, and the first inclined air outlet (2) and the air supply cylinder (1) are inclined at an angle of 30-60 degrees.
4. The umbrella-shaped air curtain air supply and dust control device for the fully mechanized coal mining face of claim 2, wherein a second inclined air outlet (4) is further disposed on the air supply device, the second inclined air outlet (4) is disposed on the air outlet barrel (5), the second inclined air outlet (4) is of an air volume adjustable structure, and the second inclined air outlet (4) is inclined toward an outlet direction of air from the air outlet barrel and is inclined at an angle of 30-60 ° with the air outlet barrel (5).
5. The air supply and dust control device for the fully mechanized coal mining face of claim 1, wherein the air supply and dust control device comprises a multi-stage air curtain generator, the multi-stage air curtain generator is capable of providing an umbrella-shaped air curtain, and an umbrella face cone angle of the multi-stage air curtain generator is increased step by step according to an air flow direction.
6. The air curtain air supply and dust control device for the coal mine fully mechanized excavation face of claim 5, wherein the air curtain dust control device comprises a first-stage air curtain generator (6), a second-stage air curtain generator (7) and a third-stage air curtain generator (8) in sequence according to an air flow direction, and the three air curtain generators are coaxial and are arranged in an axial position adjustable manner.
7. The air supply and dust control device for the umbrella-shaped air curtain for the fully mechanized coal mining face of claim 6, wherein a plurality of circumferentially and uniformly distributed position-limiting sleeves (10) are fixedly connected to the periphery of each umbrella-shaped air curtain generator, the position-limiting sleeves (10) are axially and adjustably sleeved on the guide rods (9), and the guide rods (9) are of cantilever structures, one ends of which are fixed on the air outlet barrel (5).
8. The air supply and dust control device for the umbrella-shaped air curtain for the fully mechanized coal mining face of claim 7, wherein the umbrella cover is arranged on each of the three umbrella-shaped air curtain generators through a framework, and the framework comprises a large steel ring (12), a small steel ring (13) and a support rod (11) for supporting the umbrella cover; the large steel rings (12) of each framework are equal in size, and the limiting sleeve (10) is fixedly connected to the large steel rings (12); according to the airflow direction, the three small steel rings (13) are reduced step by step.
9. The air supply and dust control device for the umbrella-shaped air curtain for the fully mechanized coal mining face according to any one of claims 6 to 8, wherein the umbrella face taper angle of the primary umbrella-shaped air curtain generator (6) is 40 to 60 degrees, the umbrella face taper angle of the secondary umbrella-shaped air curtain generator (7) is 60 to 90 degrees, and the umbrella face taper angle of the tertiary umbrella-shaped air curtain generator (8) is 90 to 120 degrees.
10. The umbrella-shaped air curtain air supply and dust control device for the coal mine fully mechanized excavation face of any one of claims 6 to 8, wherein the small steel ring (13) and the large steel ring (12) have polygonal, circular and elliptical shapes, and the small steel ring (13) and the large steel ring (12) of the same umbrella-shaped air curtain generator have the same shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144257.6A CN112253210A (en) | 2020-10-23 | 2020-10-23 | Umbrella-shaped air curtain air supply and dust control device for fully mechanized excavation working surface of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144257.6A CN112253210A (en) | 2020-10-23 | 2020-10-23 | Umbrella-shaped air curtain air supply and dust control device for fully mechanized excavation working surface of coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112253210A true CN112253210A (en) | 2021-01-22 |
Family
ID=74263626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011144257.6A Pending CN112253210A (en) | 2020-10-23 | 2020-10-23 | Umbrella-shaped air curtain air supply and dust control device for fully mechanized excavation working surface of coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112253210A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266411A (en) * | 2021-06-17 | 2021-08-17 | 南通钜拓环保科技有限公司 | Air curtain flow guide dust control air duct |
| CN113339042A (en) * | 2021-06-29 | 2021-09-03 | 中煤科工集团重庆研究院有限公司 | Roadway automatic dust control and removal system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180784Y (en) * | 1992-09-26 | 1994-10-26 | 煤炭科学研究总院重庆分院 | Mining air curtain dust fall device |
| CN102191935A (en) * | 2011-04-14 | 2011-09-21 | 淮北矿业股份有限公司 | Water vapor rotating jet dust settling device for comprehensive driving working face |
| CN202788917U (en) * | 2012-09-11 | 2013-03-13 | 山东天河科技有限公司 | Light vortex dust controller |
| CN105201505A (en) * | 2015-07-02 | 2015-12-30 | 山东科技大学 | Gas-water injection device and dust control system for dust produced by cutting of coal cutter |
| CN207261034U (en) * | 2017-07-20 | 2018-04-20 | 中国矿业大学(北京) | Excavation face in coal mine dust pelletizing system |
| CN111485930A (en) * | 2020-04-27 | 2020-08-04 | 山东科技大学 | Modular air separation device for driving face and dust suppression air curtain forming method |
-
2020
- 2020-10-23 CN CN202011144257.6A patent/CN112253210A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180784Y (en) * | 1992-09-26 | 1994-10-26 | 煤炭科学研究总院重庆分院 | Mining air curtain dust fall device |
| CN102191935A (en) * | 2011-04-14 | 2011-09-21 | 淮北矿业股份有限公司 | Water vapor rotating jet dust settling device for comprehensive driving working face |
| CN202788917U (en) * | 2012-09-11 | 2013-03-13 | 山东天河科技有限公司 | Light vortex dust controller |
| CN105201505A (en) * | 2015-07-02 | 2015-12-30 | 山东科技大学 | Gas-water injection device and dust control system for dust produced by cutting of coal cutter |
| CN207261034U (en) * | 2017-07-20 | 2018-04-20 | 中国矿业大学(北京) | Excavation face in coal mine dust pelletizing system |
| CN111485930A (en) * | 2020-04-27 | 2020-08-04 | 山东科技大学 | Modular air separation device for driving face and dust suppression air curtain forming method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266411A (en) * | 2021-06-17 | 2021-08-17 | 南通钜拓环保科技有限公司 | Air curtain flow guide dust control air duct |
| CN113266411B (en) * | 2021-06-17 | 2024-03-22 | 南通钜拓环保科技有限公司 | Air curtain flow guiding dust control air duct |
| CN113339042A (en) * | 2021-06-29 | 2021-09-03 | 中煤科工集团重庆研究院有限公司 | Roadway automatic dust control and removal system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112253210A (en) | Umbrella-shaped air curtain air supply and dust control device for fully mechanized excavation working surface of coal mine | |
| CN204063126U (en) | For the system that pipe horizontal gas flow regulates | |
| CN204513457U (en) | A kind of gas-turbine combustion chamber classification nozzle of air supply | |
| CN86102038A (en) | The flame retention head assembly that is used for blowtorch | |
| CN112879067B (en) | Fully-mechanized excavating face reverse rotational flow wind sub-domain ventilation dust control method and system | |
| CN204234346U (en) | A kind of multistage malleation aidr bells blast system | |
| CN115095863A (en) | Multistage ammonia-doped reverse-injection cyclone burner and use method thereof | |
| CN107893991B (en) | Loop swirl-flow premixed multiple rows of array jetstream whirl penetrates the burner of accumulation of heat sleeve | |
| CN113636769A (en) | Method and equipment for reducing carbon emission in cement clinker production | |
| CN103486582A (en) | Center powder feeding turbulent burner with straight sleeve barrel in center | |
| CN211801696U (en) | Multistage combined weak vortex low-resistance cyclone preheating system | |
| CN104100971B (en) | A kind of turbulent burner of First air air-coal separating | |
| CN103185342A (en) | Oil and gas compound burner | |
| CN206361679U (en) | The combustion exhausted wind apparatus of wall firing boiler | |
| CN206160142U (en) | It blows off and stirs waste incinerator of garrulous function to bring material into | |
| CN202792006U (en) | Head assembly of high-thrust and double-rotational-flow coal dust burner | |
| CN2141867Y (en) | Double-purpose coal powder burner with single or double passages | |
| CN212339233U (en) | Cyclone burner and boiler | |
| CN2779250Y (en) | Cellular multi-stage rotary flow coal burner | |
| CN104368526B (en) | A kind of multistage malleation aidr bells blast system | |
| CN202692036U (en) | Pulverized coal burner | |
| CN111167621A (en) | Multistage combined weak vortex low-resistance cyclone preheating system | |
| CN207539057U (en) | A kind of rust-proof type spraying device | |
| CN206959568U (en) | A kind of rotary kiln coal mill system | |
| CN201823616U (en) | Horizontal type cyclone dust collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210122 |
|
| RJ01 | Rejection of invention patent application after publication |