CN216110825U - Dedusting system for fully mechanized coal mining face with large mining height - Google Patents
Dedusting system for fully mechanized coal mining face with large mining height Download PDFInfo
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- CN216110825U CN216110825U CN202122197916.9U CN202122197916U CN216110825U CN 216110825 U CN216110825 U CN 216110825U CN 202122197916 U CN202122197916 U CN 202122197916U CN 216110825 U CN216110825 U CN 216110825U
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Abstract
The utility model provides a dedusting system for a fully mechanized mining face with a large mining height, which comprises: at least one sprayer, an onboard dust remover, a micro-mist purification device and a hydraulic support closed dust control device; the sprayer is arranged on the lower surface of a top beam of the hydraulic support, the spraying direction of the sprayer faces the coal wall, the spraying range covers a roller of the coal mining machine, the airborne dust remover is fixed on the upwind side of the coal mining machine, the micro-mist purification device is suspended on a top beam position on a vertical column of the hydraulic support, the top beam position is close to one side of the coal wall, and the hydraulic support closed dust control device is arranged on two sides of a side guard plate of the hydraulic support. By adopting the dust removal system for the fully mechanized mining face with the large mining height, comprehensive dust suppression, dust control, dust fall and dust removal can be realized, and the purpose of dust treatment of the fully mechanized mining face with the large mining height is achieved.
Description
Technical Field
The utility model relates to the field of coal mines, in particular to a dedusting system for a fully mechanized mining face with a large mining height.
Background
The large-mining-height fully-mechanized working face is a main working area of a mine, and main equipment for the operation of the fully-mechanized working face comprises a coal cutter, a hydraulic support and a scraper conveyor, wherein the coal cutter is coal cutting equipment, the hydraulic support is supporting equipment, and the scraper conveyor is conveying equipment. The operation characteristics of the fully mechanized mining face mainly include that a coal cutter circularly cuts coal, and the coal cutter moves along with a hydraulic support and a scraper conveyor. The main dust producing points of the fully mechanized mining face comprise coal cutter coal cutting dust production, hydraulic support column descending and moving support dust production, scraper conveyor dust production and the like, and productive dust accounts for more than 60% of the total dust quantity of a mine.
The existing dust treatment measures mainly adopt water-based spraying, and the settlement is only accelerated by utilizing the self gravity action of dust, so that the dust diffusion range is reduced, and the field problem cannot be completely solved.
SUMMERY OF THE UTILITY MODEL
Based on the problems, the utility model provides a dust removal system for a fully mechanized mining face with a large mining height, which solves the technical problem that dust is settled only by spraying and has poor dust removal effect in the prior art.
The utility model provides a dedusting system for a fully mechanized mining face with a large mining height, which comprises:
at least one sprayer, an onboard dust remover, a micro-mist purification device and a hydraulic support closed dust control device;
the sprayer is arranged on the lower surface of a top beam of the hydraulic support, the spraying direction of the sprayer faces the coal wall, the spraying range covers a roller of the coal mining machine, the airborne dust remover is fixed on the upwind side of the coal mining machine, the micro-mist purification device is suspended on a top beam position on a vertical column of the hydraulic support, the top beam position is close to one side of the coal wall, and the hydraulic support closed dust control device is arranged on two sides of a side guard plate of the hydraulic support.
In addition, the sprayer is a low-consumption water-type gas-water sprayer.
In addition, the sprayer is connected with a control valve block on the hydraulic support, and the control valve block controls the sprayer to stretch and close.
In addition, the airborne dust remover is L-shaped and is arranged at the end of the walking part of the coal mining machine, the air suction opening of the airborne dust remover is arranged downwards, and the air outlet is inclined to one side of the coal wall.
In addition, little fog purifier is little fog purifier of negative pressure dust removal, includes: the motor section, dust removal section and little fog expansion section of being connected with the motor section electricity, dust removal section has arranged filter equipment.
In addition, hydraulic support seals accuse dirt device and includes that the U-shaped leads the dirt groove, two semi-flexible catch dirt boards and two guide rails, and the bottom of two catch dirt boards is fixed respectively in the both sides of U-shaped leads the dirt groove, and the upper end of two catch dirt boards is provided with at least one respectively and hangs the pulley, and the guide rail is connected through hanging the pulley with catching dirt board, is provided with a plurality of installation ears on the guide rail.
In addition, the dust catching plate is of a right-angled trapezoid structure, the edge where the oblique waist of the dust catching plate is located is fixed with the U-shaped dust guiding groove, and the edge where the right-angled waist of the dust catching plate is located is provided with the hanging pulley.
In addition, the hanging pulley comprises a bearing and a hanging bracket, the hanging bracket is T-shaped, the two ends of the horizontal section of the hanging bracket are provided with the bearing, and the vertical section of the hanging bracket is fixed with the dust catching plate.
In addition, two ends of the guide rail are provided with limiting devices.
Furthermore, the guide rail is a linear straight guide rail.
Through adopting above-mentioned technical scheme, have following beneficial effect:
the dust control system for the fully mechanized mining face with the large mining height solves the technical problems that dust is settled only by means of spraying and the dust fall effect is poor in the prior art, can achieve comprehensive dust suppression, dust control, dust fall and dust removal and achieves the purpose of dust control of the fully mechanized mining face with the large mining height.
Drawings
FIG. 1 is a schematic diagram of a dedusting system for a large mining height fully mechanized coal mining face according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the hydraulic support closed dust control device in FIG. 1;
fig. 3 is a schematic position diagram of the hydraulic bracket closed dust control device in fig. 1 on the hydraulic bracket.
Detailed Description
The present invention is described in further detail below with reference to specific embodiments and the attached drawings. It is intended that the present invention not be limited to the particular embodiments disclosed, but that the present invention be limited only by the appended claims.
Referring to fig. 1, the utility model provides a dust removal system for a fully mechanized mining face with a large mining height, which comprises:
at least one sprayer 1, an onboard dust remover 2, a micro-mist purification device 3 and a hydraulic support closed dust control device 4;
the sprayer 1 is arranged on the lower surface of a top beam of the hydraulic support 5, the spraying direction of the sprayer 1 faces a coal wall, the spraying range covers a roller of the coal mining machine 6, the airborne dust remover 2 is fixed on the upwind side of the coal mining machine 6, the micro-fog purification device 3 is suspended on a stand column of the hydraulic support 5 and is close to the top beam position on one side of the coal wall, and the hydraulic support closed dust control device 4 is arranged on two sides of a side guard plate of the hydraulic support 5.
In fig. 1, 7 is a scraper conveyor.
In order to solve only relying on the spraying to subside the dust among the prior art, the poor technical problem of dust fall effect, this embodiment has proposed and has adopted four kinds of techniques to carry out comprehensive dust fall: a dust-containing air flow control technology, a coal mining machine random dust extraction and purification technology, a negative pressure dust removal micro-mist purification technology and a hydraulic support closed dust control technology.
In this embodiment, the dust-laden air flow control technology includes a sprayer 1, and optionally, the sprayer 1 is a low-consumption water-type air-water sprayer, which is arranged on the lower surface of the top beam of the hydraulic support, the spraying direction faces the coal wall, the range of the drum of the coal mining machine is covered, the spraying amount at different positions is opened along with the movement of the coal mining machine, and the coverage range of the drum of the coal mining machine is not changed.
The random dust extraction and purification technology of the coal mining machine mainly comprises an airborne dust remover 2, wherein in the embodiment, the airborne dust remover 2 is fixed on the windward side of the coal mining machine, optionally, the end head of the windward side has no relative displacement with the coal mining machine, and is used for treating dust blocked by the windward side of the coal mining machine and purifying wind flow diffused to the pedestrian side due to the blocking of the coal mining machine.
The negative pressure dedusting micro-fog purification technology mainly comprises a micro-fog purification device 3, optionally, the micro-fog purification device 3 is a negative pressure dedusting micro-fog purification device, the negative pressure dedusting micro-fog purification device is suspended between a vertical column of a hydraulic support and a scraper conveyor and is used for treating dust suspended on the upper part of the space of the hydraulic support, and meanwhile, a purified air flow is used as power to blow out micro-fog to moisten the area of the rear space and actively guide the air flow to move towards the coal wall.
The hydraulic support closed dust control technology comprises a hydraulic support closed dust control device 4, the hydraulic support closed dust control device is arranged on two sides of a side protection plate of the hydraulic support, falling dust of a falling column moving frame is collected, and falling dust of a pedestrian side of the support is reduced.
In the embodiment, the sprayer is arranged at the front end of the top beam of the hydraulic support to cover a certain range of front and rear rollers of the coal mining machine, so that the sedimentation of dust during coal cutting of the coal mining machine is realized, and the sedimentation process is accelerated; an airborne dust collector is arranged on the upper air side of the coal mining machine, so that the dust-containing airflow blocked by the coal mining machine is treated, and the diffusion of the dust-containing airflow to the pedestrian side of the bracket is reduced; suspending a micro-fog purification device in a top beam area between a hydraulic support upright post and a scraper conveyor to intensively treat suspended dust in an upper space area of the hydraulic support, further treating dust in an area above the scraper conveyor, and reducing the concentration of the dust diffused to the pedestrian side of the support; the hydraulic support closed dust control device is arranged between the hydraulic supports, collects falling dust of the falling column moving frame, and strictly controls and guides the falling dust of the falling column moving frame, so that wind current of pedestrian side areas of the supports is not influenced, and the purpose of dust control of a fully mechanized mining face with a large mining height is achieved.
This embodiment has solved only to rely on the spraying to subside the dust among the prior art, and the technical problem that the dust fall effect is poor adopts the height of adopting to combine to adopt the working face dust pelletizing system that this embodiment provided, can realize comprehensive dust suppression, accuse dirt, dust fall and dust removal, reaches the height of adopting and combines the purpose of adopting the dust treatment of working face.
In one embodiment, the atomizer 1 is a low water consumption gas-water atomizer.
In the embodiment, the low-water-consumption air-water sprayer is formed by processing a metal anticorrosive material, is fixed on the lower surface of the top beam of the hydraulic support through bolts, needs to supply compressed air and water simultaneously, has a jet range of more than 8m by means of compressed air, and has low water consumption and no occurrence of the condition of water mist diffusion on a working surface. The spraying direction of the low-water-consumption type gas-water sprayer faces to the coal wall, optionally, multiple groups of spraying devices are simultaneously carried out during working, the coverage ranges of the front and rear rollers and the upper and lower wind sides of the front and rear rollers of the coal mining machine are covered, the coverage area changes along with the movement of the coal mining machine, and the coverage range is basically unchanged.
In one embodiment, the sprayer 1 is connected with a control valve block on a hydraulic support, and the control valve block controls the sprayer 1 to stretch and close.
The low-water-consumption air-water sprayer is controlled by a control valve block connected to the hydraulic support, and is opened and closed when the forepoling beam is retracted and extended out.
In one embodiment, the airborne dust collector 2 is L-shaped and is installed at the end of the traveling part of the coal mining machine, the air suction inlet of the airborne dust collector 2 is arranged downwards, and the air outlet is inclined to one side of the coal wall.
The airborne dust remover is independently designed according to the model of the coal mining machine and the effective available space between the coal mining machine and the scraper conveyor and between the coal mining machine and the cable trough, the air suction volume is designed by the air volume of the working face blocked by the coal mining machine, the L-shaped dust remover is specially designed, and the condition of secondary dust raising is guaranteed not to occur in the using process. The airborne dust remover is connected with the mounting seat in bolted connection with the end head of the coal mining machine, and the connection structure is triangular, so that the stability of the airborne dust remover is improved. The airborne dust remover is driven by a motor, electricity is taken to the interior of the coal mining machine, the voltage level is 660V, the control is controlled by a switch, the control switch is turned on after the coal mining machine is powered on, the airborne dust remover operates, spray water supply is guaranteed in the operation process, and the water supply is used for mixing dust in the airborne dust remover, washing a filter screen and the like.
In one embodiment, the fine mist purification apparatus 3 is a negative pressure dust removal fine mist purification apparatus, and includes: the motor section, dust removal section and little fog expansion section of being connected with the motor section electricity, dust removal section has arranged filter equipment.
The negative pressure dust removal micro-mist purification device is hung on the lower surface of the top beam of the hydraulic support and is close to the front upright post of the hydraulic support. Its structure of negative pressure dust removal micro mist purifier divides into motor section, dust removal section and micro mist expansion section, and the motor section provides power for dust removal section and micro mist expansion section, and filter equipment has been arranged to the dust removal section, realizes intercepting inspiratory dust, and the dusty air current that is purified blows off the micro mist, purifies the air purification of negative pressure dust removal micro mist purifier below side region. The negative pressure dust removal micro-fog purification device is controlled by a switch and moves forwards along with the movement of the hydraulic support, can treat local dust-containing air flow, and meanwhile accelerates the moving speed of the air flow above the scraper conveyor to prevent the dust-containing air flow above the scraper conveyor from diffusing towards the pedestrian side of the hydraulic support.
Referring to fig. 2 and 3, in one embodiment, the hydraulic bracket enclosed dust control device 4 includes a U-shaped dust guiding groove 41, two semi-flexible dust collecting plates 42 and two guide rails 44, wherein the bottoms of the two dust collecting plates 42 are respectively fixed on two sides of the U-shaped dust guiding groove 41, the upper ends of the two dust collecting plates 42 are respectively provided with at least one hanging pulley 43, the guide rails 44 are connected with the dust collecting plates 42 through the hanging pulleys 43, and the guide rails 44 are provided with a plurality of mounting lugs 45.
The hydraulic support closed dust control device 4 comprises a U-shaped dust guide groove 41 and two semi-flexible dust collecting plates 42, optionally, the U-shaped dust guide groove 41 is rigid, the bottoms of the dust collecting plates 42 are respectively fixed on two sides of the U-shaped dust guide groove 41, the top of the dust collecting plates 42 is provided with a plurality of hanging pulleys 43, the hanging pulleys 43 are arranged in guide rails 44, and the guide rails 44 are provided with mounting lugs 45. The dust catching plate 42 slides in the guide rail 44 through the hanging pulley 43, so that when the hydraulic supports move forwards and the position relationship of the adjacent hydraulic supports relatively changes, the dust catching plate 42 and the U-shaped dust guide groove 41 can move through the matching of the hanging pulley 43 and the guide rail 44 to adapt to the change of the position relationship between the hydraulic supports; the rigid U-shaped dust guide groove can prevent the U-shaped dust guide groove 41 from deforming when dust is accumulated inside, so that the dust can smoothly slide to the rear of the hydraulic support; the semi-flexible dust catching plate 42 refers to that the dust catching plate has a certain elastic deformation amount, so that the distance between the hydraulic supports can be adapted to when the adjacent hydraulic supports move relatively, the adaptability of the dust catching plate 42 is improved, and the dust catching plate 42 is specifically made of antistatic flame-retardant rubber.
In one embodiment, the dust catching plate 42 is a right trapezoid structure, the edge of the oblique waist of the dust catching plate 42 is fixed with the U-shaped dust guiding groove 41, and the edge of the right waist of the dust catching plate 42 is provided with the hanging pulley 43.
Catch dirt board 42 and be the right trapezoid structure, the limit at the oblique waist place of catching dirt board 42 is fixed with U-shaped dust guide groove 41, the limit at the right angle waist place of catching dirt board 42 sets up hanging pulley 43, make the decurrent inclination of U-shaped dust guide groove 41 have been increased, avoid the dust to pile up in U-shaped dust guide groove 41, realize that the dust is from swift current downwards under self action of gravity, install guide rail 44 on hydraulic support after through installation ear 45, the dirt board 42 that catches of right trapezoid structure makes the inclination increase of U-shaped dust guide groove 41, be convenient for the dust to hydraulic support's rear landing, it causes the influence to the staff to reduce the dust diffusion.
In one embodiment, the hanging pulley 43 comprises a bearing and a hanger, the hanger is in a shape of "T", the bearing is arranged at two ends of the horizontal section of the hanger, and the vertical section of the hanger is fixed with the dust catching plate 42.
The hanging pulley 43 comprises a bearing and a hanging bracket, the hanging bracket is T-shaped, the two ends of the horizontal section of the hanging bracket are provided with the bearing, the vertical section of the hanging bracket is fixed with the dust catching plate 42, and the running stability of the hanging pulley 43 on the guide rail 44 is improved.
In one embodiment, the guide rails 44 are provided with stop means at both ends.
The two ends of the guide rail 44 are provided with limiting devices which prevent the hanging pulley 43 from slipping out of the guide rail 44. Alternatively, the guide rail 44 is a lightweight high-strength metal material, which reduces its weight while ensuring structural strength.
In one embodiment, the guide 44 is a linear straight guide.
The guide rail 44 is a linear straight guide rail, and the dust catching plate 42 slides in the guide rail through the hanging pulley, so that when the position relationship of the adjacent hydraulic supports relatively changes when the hydraulic supports move forwards, the dust catching plate 42 and the U-shaped dust guiding groove 41 can move through the matching of the hanging pulley 43 and the guide rail 44, and the change of the position relationship between the hydraulic supports is adapted.
Optionally, the U-shaped dust guide groove 41 is made of stainless steel, so that the structural strength of the U-shaped dust guide groove is increased, dust can smoothly slide along the U-shaped dust guide groove, and the influence of dust scattering everywhere on the health of workers is reduced; the mounting ears 45 are provided in plurality, which increases the mounting stability of the guide rail 44.
The foregoing is considered as illustrative only of the principles and preferred embodiments of the utility model. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.
Claims (10)
1. The utility model provides a combine and adopt working face dust pelletizing system with big mining height which characterized in that includes:
at least one sprayer, an onboard dust remover, a micro-mist purification device and a hydraulic support closed dust control device;
the sprayer is arranged on the lower surface of a top beam of the hydraulic support, the spraying direction of the sprayer faces the coal wall, the spraying range covers a roller of the coal mining machine, the airborne dust remover is fixed on the upwind side of the coal mining machine, the micro-mist purification device is suspended on a top beam position on a vertical column of the hydraulic support, the top beam position is close to one side of the coal wall, and the hydraulic support closed dust control device is arranged on two sides of a side guard plate of the hydraulic support.
2. The dust removal system for the large mining height fully mechanized coal mining face of claim 1,
the sprayer is a low-consumption water type air-water sprayer.
3. The dust removal system for the large mining height fully mechanized coal mining face of claim 1,
the sprayer is connected with a control valve block on the hydraulic support, and the control valve block controls the sprayer to stretch and close.
4. The dust removal system for the large mining height fully mechanized coal mining face of claim 1,
the airborne dust remover is L-shaped and is arranged at the end of the walking part of the coal mining machine, the air suction inlet of the airborne dust remover is arranged downwards, and the air outlet is inclined to one side of the coal wall.
5. The dust removal system for the large mining height fully mechanized coal mining face of claim 1,
little fog purifier is little fog purifier of negative pressure dust removal, includes: the motor section, dust removal section and little fog expansion section of being connected with the motor section electricity, dust removal section has arranged filter equipment.
6. The large mining height fully mechanized mining face dust removal system of any one of claims 1 to 5,
the hydraulic support closed dust control device comprises a U-shaped dust guide groove, two semi-flexible dust collecting plates and two guide rails, the bottoms of the two dust collecting plates are fixed on two sides of the U-shaped dust guide groove respectively, at least one hanging pulley is arranged at the upper ends of the two dust collecting plates respectively, the guide rails are connected with the dust collecting plates through the hanging pulleys, and a plurality of mounting lugs are arranged on the guide rails.
7. The dust removal system for the large mining height fully mechanized coal mining face of claim 6,
the dust catching plate is of a right-angled trapezoid structure, the edge where the oblique waist of the dust catching plate is located is fixed with the U-shaped dust guiding groove, and the edge where the right-angled waist of the dust catching plate is located is provided with the hanging pulley.
8. The dust removal system for the large mining height fully mechanized coal mining face of claim 6,
the hanging pulley comprises a bearing and a hanging bracket, the hanging bracket is T-shaped, the two ends of the horizontal section of the hanging bracket are provided with the bearing, and the vertical section of the hanging bracket is fixed with the dust catching plate.
9. The dust removal system for the large mining height fully mechanized coal mining face of claim 6,
and two ends of the guide rail are provided with limiting devices.
10. The dust removal system for the large mining height fully mechanized coal mining face of claim 6,
the guide rail is a linear straight guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197916.9U CN216110825U (en) | 2021-09-10 | 2021-09-10 | Dedusting system for fully mechanized coal mining face with large mining height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197916.9U CN216110825U (en) | 2021-09-10 | 2021-09-10 | Dedusting system for fully mechanized coal mining face with large mining height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216110825U true CN216110825U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122197916.9U Active CN216110825U (en) | 2021-09-10 | 2021-09-10 | Dedusting system for fully mechanized coal mining face with large mining height |
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| Country | Link |
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| CN (1) | CN216110825U (en) |
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2021
- 2021-09-10 CN CN202122197916.9U patent/CN216110825U/en active Active
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