WO2020006815A1 - 用于采煤机截割产尘的隔尘-降尘方法及隔尘-降尘系统 - Google Patents
用于采煤机截割产尘的隔尘-降尘方法及隔尘-降尘系统 Download PDFInfo
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- WO2020006815A1 WO2020006815A1 PCT/CN2018/100421 CN2018100421W WO2020006815A1 WO 2020006815 A1 WO2020006815 A1 WO 2020006815A1 CN 2018100421 W CN2018100421 W CN 2018100421W WO 2020006815 A1 WO2020006815 A1 WO 2020006815A1
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- Prior art keywords
- dust
- coal
- mining machine
- isolation
- coal mining
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- 239000000428 dust Substances 0.000 title claims abstract description 313
- 239000003245 coal Substances 0.000 title claims abstract description 99
- 238000005065 mining Methods 0.000 title claims abstract description 76
- 238000002955 isolation Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005520 cutting process Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000007921 spray Substances 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 41
- 239000003595 mist Substances 0.000 claims abstract description 18
- 230000009467 reduction Effects 0.000 claims description 36
- 230000000903 blocking effect Effects 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 239000002817 coal dust Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 8
- 238000009423 ventilation Methods 0.000 abstract description 3
- 230000036541 health Effects 0.000 description 2
- 208000028571 Occupational disease Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
- E21C35/223—Equipment associated with mining machines for sucking dust-laden air from the cutting area, with or without cleaning of the air
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
- E21C35/226—Control valves for the spraying liquid used in dust suppression systems
Definitions
- the invention relates to the field of dust prevention and control in coal mines, and in particular, to a dust isolation-dust reduction method and a dust isolation-dust reduction system for cutting coal-produced dust by a coal mining machine.
- the commonly used control measures are mainly ventilation and dust removal, spray dust reduction, dust removal by fan, chemical suppression, etc., but due to the large amount of dust produced by the coal cutter, and the Under the action of wind current, it quickly spreads to the entire working space, so the traditional dust-proof measures have a limited dust removal effect.
- an object of the present invention is to provide a dust isolation-dust reduction method and a dust isolation-dust reduction system for a coal mining machine to cut and produce dust in a fully mechanized mining face, so as to reduce the The amount of dust improves the harsh environment of the underground.
- the solution of the present invention includes:
- a dust isolation-dust reduction method for cutting coal-producing dust by a coal mining machine in a fully mechanized mining face includes the following steps:
- the shearer started to work.
- the dust removal fan pulled out a large amount of dust falling from the drum to cut coal, and the remaining part of the dust spread to the entire working surface.
- the wind water nozzle on the body of the shearer began to spray water, which settled large particles of dust and small particles.
- the high-pressure micro-mist nozzle installed above the dust removal fan sprays, which effectively settles the smaller-sized dust particles, and at the same time, the The transparent high-strength material dust shield can block the large-scale diffusion of dust.
- the dust-proof mechanism composed of a single water nozzle and a dust removal brush at the transparent high-strength material dust shield reduces the diffusion of dust produced on the working surface.
- the above steps further include:
- the sensors at the coal mining machine, dust removing fan, and transparent high-strength material fenders detect the dust concentration in the roadway and the position of the coal mining machine, and transmit the information to the central processor.
- the central processor receives the corresponding information and then controls the air volume of the dust removing fan And the water pressure at the water supply pump.
- the air volume increases. Increase the air flow of the dust removal fan and the water pressure of the water supply pump to achieve the best dust removal effect at the current concentration.
- the dust concentration is small, reduce the air flow of the dust removal fan.
- water pump water pressure water pressure
- a coal mine position transmitter is arranged at the body of the coal mining machine.
- the coal machine position receiver installed on the hydraulic support receives signals.
- the central processor Under the automatic control of the central processor, several frames on the windward side of the coal mining machine and Nozzles and dust brushes on all the hydraulic supports on the downwind side began to work.
- a dust-isolation and dust-reduction system for a coal mining machine using a dust-isolation and dust-reduction method to cut dust and produce dust includes a coal cutter, wherein a plurality of first Fengshui nozzles. Pallets are arranged on the front and rear of the coal mining machine. Dust removal fans are arranged on the pallet trucks. A plurality of second Fengshui nozzles are evenly arranged on the dust removal fans. High-pressure micro-mist nozzles are arranged above the dust removal fans for coal mining.
- the drum of the machine is connected with the corresponding dust removal fan through the corresponding air cylinder; a transparent high-strength material dust blocking plate is arranged between the column of the hydraulic support and the coal mining machine, and a single water nozzle is arranged above and below the transparent high-strength material dust blocking plate.
- a dust-removing brush is provided at the corresponding place of the transparent high-strength material dust-proof plate.
- the single-water nozzle and the dust-removing brush are used to clean the dust on the transparent high-strength material dust-proof plate.
- the dust removal fan, the first fengshui nozzle, the second fengshui nozzle, and the high-pressure micro-mist nozzle are used to isolate and reduce dust in the fully-mechanized working face.
- an automatic spray rack is arranged along the length direction of the above-mentioned shearer body, and corresponding nozzles are arranged on the automatic spray rack.
- a plurality of dust concentration sensors and position sensors are arranged on the coal mining machine body and the dust removing fan.
- the dust- and dust-reduction system wherein the dust-and-dust reduction system is equipped with a control center, a dust removal fan, a first wind water nozzle, a second wind water nozzle, a high-pressure mist spray nozzle, an automatic spray rack, a dust concentration sensor, and a position sensor.
- the single water spray head and the dust removal brush are all communicatively connected with the central processing unit of the control center.
- the control center is used to control the operation status of the dust-proof and dust-reduction system.
- the corresponding air duct is a bendable air duct.
- the air volume of the dust-removing fan is adjusted:
- the pallet truck and the shearer body are connected to each other, the pallet truck and the shearer remain relatively stationary, and the pallet truck is arranged on the scraper conveyor track of the fully-mechanized working face.
- the pallet truck can move along the scraper conveyor track and the shearer at the same time.
- a plurality of nozzles are arranged at a distance from the long side of the coal mining machine body away from the coal wall, and the retractable automatic spray is arranged on both sides of the middle position of the coal mining machine body.
- a set of nozzles are arranged on the upper and lower sides of the automatic spray rack.
- the upper set of nozzles are arranged on the upper cross bar of the automatic spray rack with the spray direction upward.
- the lower set of nozzles are arranged on the lower cross bar of the automatic spray rack. Spray direction is up.
- the invention provides a dust isolation-dust reduction method and a dust isolation-dust reduction system for a coal mining machine for cutting dust produced by a fully-mechanized working face.
- a dust removal fan extracts a large amount of dust falling from a drum to cut coal, and the remaining part of the dust is sent to the entire work.
- the Fengshui nozzle on the body of the coal mining machine begins to spray water, and settles large particles of dust.
- small particles of dust are diffused to the dust removing fan located far away from the coal mining machine, the high-pressure
- the mist nozzle performs spraying to efficiently settle the smaller-sized dust particles.
- Through ventilation and dust removal, spray dust reduction, dust removal by fan and dust isolation measures on the fully mechanized mining face the dust on the fully mechanized mining face is greatly reduced. Volume, improving the harsh environment of the underground.
- FIG. 1 is a schematic flowchart of a dust isolation-dust reduction method in the present invention
- FIG. 2 is a layout diagram of a dust isolation-dust reduction system in the present invention
- FIG. 3 is a schematic side view of a dust-isolation system according to the present invention.
- the present invention provides a dust isolation-dust reduction method and a dust isolation-dust reduction system for cutting coal-producing dust by a coal mining machine in a fully-mechanized working face.
- the invention provides a dust-isolation-dust reduction method for a coal mining machine to cut off dust production in a fully-mechanized working face.
- the coal mining machine 1 starts to work, and the dust removing fan 5 draws out the drum 2 to cut the coal.
- a large amount of dust, the remaining part of the dust spread to the entire working surface, the Fengshui nozzle on the body of the shearer 1 began to spray water, and settled the large particles of dust, and the small particles of dust diffused to the dust removal far from the coal cutter 1.
- the high-pressure micro-mist nozzle 15 installed above the dust removing fan 5 performs spraying, and efficiently settles the smaller-sized dust particles.
- the transparent high-strength material dust shield 21 provided in front of the column 20 can The large-scale diffusion of dust is blocked, and the dust blocking mechanism composed of the single water nozzle 24 and the dust removing brush 22 at the transparent high-strength material dust blocking plate 21 reduces the diffusion of dust produced on the working surface.
- the sensors at the coal mining machine 1, the dust removing fan 5, and the transparent high-strength material dust shield 21 detect the dust concentration in the roadway and the information of the position of the coal mining machine 1, and transmit the information to the central processing unit, and the central processing unit receives the corresponding information. Information, and then control the air volume of the dust removal fan 5 and the water pressure at the water supply pump.
- the air volume increases. Increase the air volume of the dust removal fan 5 and the water pressure of the water supply pump to achieve the best dust removal effect at the current concentration. ;
- the dust concentration is small, reduce the air volume of the dust removal fan 5 and the water pump water pressure;
- a coal mine position transmitter is arranged at the fuselage of the coal shearer 1.
- the coal mine position receiver installed on the hydraulic support receives signals.
- the coal shearer 1 is on the windward side. Nozzles and dust brushes on several racks and all hydraulic supports on the downwind side began to work.
- the present invention also provides a dust-isolation-dust reduction system for cutting dust-producing dust by a coal mining machine in a fully-mechanized working face using the above-mentioned dust-isolation-dust reduction method.
- a plurality of first feng shui nozzles 9 are evenly arranged on the body of the coal mining machine 1
- a board car is arranged in front and rear of the coal machine 1
- a dust removing fan 5 is arranged on the board car, and the dust removing fan 5 is evenly arranged
- the drum 2 of the coal mining machine 1 is communicated with the corresponding dust removing fan 5 through the corresponding air cylinder 12; the column 20 of the hydraulic support 25 is connected to the coal mining
- a transparent high-strength material dust blocking plate 21 is provided between the machines 1, a single water nozzle 24 is arranged above and below the transparent high-strength material dust blocking plate 21, and a dust-removing brush 22 is provided at the corresponding place of the transparent high-strength material dust blocking plate 21,
- the water spray head 24 cooperates with the dust removal brush 22 to clean the dust on the transparent high-strength material dust blocking plate 21; the transparent high-strength material dust blocking plate 21 forms a closed interception space with the fully mechanized mining face, and cooperates with the dust removal fan 5, the first wind water nozzle 9, the second Fengshui nozzle 18 and high pressure micro mist nozzle 15
- the working face is used for dust isolation and dust reduction.
- an automatic spraying frame 13 is arranged along the length direction of the main body of the coal mining machine 1, and corresponding nozzles are arranged on the automatic spraying frame 13.
- a plurality of dust concentration sensors 7 and position sensors 8 are arranged on the body of the coal shearer 1 and the dust removal fan 5.
- the above-mentioned dust isolation and dust reduction system is equipped with a control center, a dust removal fan 5, a first wind water nozzle 9, a second wind water nozzle 18, a high-pressure mist nozzle 15, an automatic spray rack 13, a dust concentration sensor 7, and a position sensor 8.
- the single-water spray head 24 and the dust-removing brush 22 are all communicatively connected to a central processor of a control center, and the control center is used to control the operation status of the dust-proof and dust-reduction system.
- the above-mentioned corresponding air duct 12 is a flexible air duct.
- the above-mentioned cart is connected to the corresponding body of the shearer 1, the cart and the shearer 1 remain relatively stationary, the cart is arranged on the scraper conveyor track of the fully mechanized mining face, and the cart can move along the scraper conveyor The track and the shearer 1 move simultaneously.
- a plurality of nozzles are arranged on the long side of the body of the coal winning machine 1 away from the coal wall at a certain distance, and the above-mentioned retractable automatic spray racks 13 are arranged on both sides of the middle position of the coal mining machine body.
- a group of nozzles are arranged, the upper group of nozzles are arranged on the upper cross bar of the automatic spray rack 13 with the spraying direction upward, the lower group of nozzles are arranged on the lower cross bar of the automatic spray rack 13 and the spraying direction of all the nozzles is upward.
- the dust-and-dust reduction system mainly includes a shearer 1, a drum 2, and a shearer 1.
- the fuselage is provided with a first wind water nozzle 9.
- the dust remover 5 is provided in front of and behind the shearer 1, and the dust remover 5 is provided with a fuselage.
- the second fengshui nozzle 18, the dust concentration sensor 10, and the position transmitter 11 are fixed to the drum 2 of the coal winning machine 1 through the wind drum 12; in order to form a closed space on the fully-mechanized working face to better reduce dust, it is in front of the column 20
- a transparent high-strength material dust shield 21 is provided, and a single water nozzle 6, a dust concentration sensor 7, and a position receiver 8 are provided above the transparent high-strength material dust shield 21, and a large amount of dust is adhered to the transparent high-strength material dust shield 21
- a dust-removing brush 22 is provided below, so that the concentration of ore dust can be minimized when the dust-reducing device of the fully-mechanized working face is operated, and the operator of the shearer can clearly observe the coal mining situation.
- the dust removing fan 5 is started, and the dust falling from the coal cutting of the drum 2 is extracted, and part of the dust is diffused to the entire working surface.
- the first wind water nozzle 9 on the body of the shearer 1 starts to spray water, which can remove the particles.
- the high-pressure micro mist nozzle 15 installed above the dust removal fan 5 can emit more droplets. Efficiently settle the smaller-sized dust particles.
- the transparent high-strength material dust blocking plate 21 located in front of the column 20 can block the large-scale diffusion of dust.
- the dust blocking device composed of the dust removing brush 22, combined with the dust reduction measures of the entire working surface, can effectively reduce the dust production on the working surface and provide a good working environment for the workers.
- the dust concentration sensor at the coal mining machine 1, the dust removing fan 5, the transparent high-strength material dust shield 21, and the position receiver 8 receive information such as the concentration in the roadway and the position of the coal mining machine 1 and feed it back to the control center.
- the central processing unit receives the signal and sends it to the dust removal fan 5 and the water supply pump to adjust the air volume of the dust removal fan 5 and the water pressure at the water supply pump.
- the dust concentration is large, the air volume increases and the water supply pump water The pressure is increased to achieve the best dust removal effect under the current concentration.
- the sensor feeds back to the central processor to reduce the air flow of the dust removal fan and the water pressure of the water supply pump.
- a large amount of dust is generated in the working surface during the coal cutting process of the shearer 1, and a wind drum 12 is arranged at the corresponding position of the drum 2 of the shearer 1 to connect a dust removal fan 5
- the front drum is connected to the dust removal fan in front of the shearer 1
- the rear drum is connected to the dust removal fan in the rear of the shearer 1.
- the wind drum 12 is a flexible wind drum.
- the dust removal fan 5 is a fan fixed on the cart on the front and rear of the coal mining machine 1.
- the corresponding nozzle, the mine dust concentration sensor 10 and the position transmitter 11 are installed on the body of the dust removal fan 5.
- the dust removal fan 5 is located above the dust removal fan 5.
- the high-pressure micro-mist nozzle 15 sprays to continuously reduce the particle size of the dust that diffuses from the vicinity of the coal mining machine 1 to the dust removal fan 5.
- the high-pressure micro-mist nozzle is more effective for small-sized particles at the top, and the second wind water nozzle 18 is used in the middle.
- a single water nozzle 19 is used in the lower part of the dust removal fan 5 to deal with the coal falling on the scraper conveyor and the large particle size sedimentation on the floor.
- the air outlet of the dust removal fan 5 is also arranged separately. Water nozzles and mist spray on the fan blades to settle down most of the dust drawn by the fan.
- the dust concentration sensor 7 transmits the detected concentration value to the central processing unit.
- the central processing unit will The signal is transmitted to the frequency conversion device for the rotation speed of the dust removal fan 5 and the frequency conversion device for the number of round trips of the spray pump plunger to increase the air volume and spray pressure.
- the pallet truck is connected to the shearer 1, and is kept relatively stationary with the shearer 1.
- a dust removing fan 5 is arranged at the front and rear of the shearer 1, and the dust removing fan 5 is placed on the pallet, along the scraper conveyor track and the shearer. 1 Simultaneous movement;
- a plurality of nozzles are arranged on the long side of the body of the coal winning machine 1 away from the coal wall at a certain distance, and the above-mentioned retractable automatic spray racks 13 are arranged on both sides of the middle position of the coal mining machine body.
- a group of nozzles are arranged.
- the upper group of nozzles is arranged on the upper cross bar of the automatic spray rack 13 with the spray direction upward.
- the lower group of nozzles is arranged on the lower cross bar of the automatic spray rack 13.
- the spray direction of all the nozzles is upward.
- the automatic spray stand 13 can automatically adjust the height of the stand under different hydraulic supports 25.
- the hydraulic support 25 is small and the nozzle spray on the body of the coal winning machine 1 can achieve a dust reduction effect
- the automatic spray stand 13 can be completely lowered, and The bottom can be rotated and placed horizontally at the shearer body.
- the dust blocking device in front of the pillar 20 is a transparent high-strength material dust blocking plate 21.
- the transparent high-strength material dust blocking plate 21 is arranged between the pillar 20 and the cable groove.
- a single water nozzle 24 is arranged at the transparent high-strength material dust blocking plate 21. Clean the dust adhered to the transparent high-strength material dust blocking plate 21 to the transparent high-strength material dust blocking plate 21, and at the same time, set dust removing brushes 22 above and below the transparent high-strength material dust blocking plate 21 to effectively remove the dust on the baffle. Prevent dust from blocking the sight of work and improve work efficiency.
- Two nozzles are arranged between each hydraulic bracket 25, and two transparent high-strength material dust shields 21 are installed on each hydraulic bracket 25 to form a continuous transparent high-strength material baffle;
- two dust-removing brushes 22 are installed on each two hydraulic brackets 25 , Driven by a motor, when the single water nozzle 24 sprays water, the dust removal brush 22 starts to work;
- a position transmitter 11 is installed at the shearer 1, and when the shearer 1 moves, the position transmitter can effectively send the position information of the shearer 1 to the position receiver 8 installed at the column 20 of each hydraulic support 25,
- the single water nozzle 24 on the transparent high-strength material dust shield 21 starts spraying water, and the dust removal brush starts to work.
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Abstract
一种用于综采工作面采煤机截割产尘的隔尘-降尘方法及隔尘-降尘系统，采煤机（1）机身上均匀布置有多个第一风水喷嘴（9），采煤机（1）的前方、后方均布置有板车，板车上均设置有除尘风机（5），除尘风机（5）上均匀布置有多个第二风水喷嘴（18），液压支架（25）的立柱（20）与采煤机（1）之间设置有透明高强材料挡尘板（21），透明高强材料挡尘板（21）的上方、下方分别设置有单水喷头（24）；透明高强材料挡尘板（21）与综采工作面形成封闭式截隔空间，配合除尘风机（5）、第一风水喷嘴（9）、第二风水喷嘴（18）与高压微雾喷嘴（15）对综采工作面进行隔尘-降尘；通过在综采工作面的通风排尘、喷雾降尘、除尘风机除尘、隔尘措施，大大降低了综采工作面的粉尘量，改善了井下恶劣的环境。
Description
本发明涉及煤矿粉尘防治领域，尤其涉及一种用于综采工作面采煤机截割产尘的隔尘-降尘方法及隔尘-降尘系统。
近年来，随着我国煤炭行业机械化、自动化程度的不断提高，采煤工作面煤尘的产生量也越来越大，由煤尘引发的健康和安全问题尤为突出。据实测，不采取任何措施时，综采工作面的粉尘浓度可达5000-8000mg/m
3，其中采煤机截割产尘占综采面截割产尘的55％左右，而且呼吸性粉尘占全部粉尘的50％以上。高浓度粉尘不仅会引发职业病，还可能导致粉尘爆炸事故，严重影响着矿井的安全生产。
目前，针对煤矿综采工作面高浓度粉尘，常用的治理措施主要是通风排尘、喷雾降尘、除尘风机除尘、化学抑尘等方式，但由于采煤机截割产尘量大，且粉尘在风流作用下，快速弥散至整个作业空间，因此，传统防尘措施除尘效果较为有限。
因此，现有技术有待与更进一步的改进和发展。
发明内容
鉴于上述现有技术的不足，本发明的目的在于提供一种用于综采工作面采煤机截割产尘的隔尘-降尘方法及隔尘-降尘系统，以降低了综采工作面的粉尘量，改善井下恶劣的环境。
为解决上述技术问题，本发明方案包括：
一种用于综采工作面采煤机截割产尘的隔尘-降尘方法，其包括以下步骤：
采煤机开始工作，除尘风机抽出滚筒割煤落下的大量粉尘，剩余的部分粉尘向整个工作面扩散，采煤机机身上的风水喷嘴开始喷水，将大颗粒的粉尘沉降下来，小颗粒的粉尘扩散到距离采煤机稍远的除尘风机处时，安装在除尘风机上方的高压微雾喷嘴进行喷雾，有效率的把粒径较小的粉尘颗粒沉降下来，同时，在立柱前方设置的透明高强材料挡尘板能够阻挡粉尘的大范围扩散，透明高强材料挡尘板处单水喷嘴、除尘刷组成的挡尘机构，降低工作面的产尘的扩散。
所述的隔尘-降尘方法，其中，上述步骤具体的还包括：
采煤机、除尘风机、透明高强材料挡尘板处的传感器检测到巷道内粉尘浓度以及采煤机位置的信息，传输至中央处理器，中央处理器接收到相应信息，再控制除尘风机风量大小和供水泵处水压大小，当粉尘浓度较大时，风量增大，增大除尘风机风量和供水泵水压，来达 到当前浓度下最好的除尘效果；当粉尘浓度小时，降低除尘风机风量和供水泵水压；
采煤机机身处布置煤机位置发射器，采煤机移动时，安装在液压支架上的煤机位置接收器接收信号，在中央处理器的自动控制下，采煤机上风侧若干架和下风侧全部液压支架处喷嘴和除尘刷开始工作。
一种使用所述隔尘-降尘方法的综采工作面采煤机截割产尘之隔尘-降尘系统，其包括采煤机，其中，采煤机机身上均匀布置有多个第一风水喷嘴，采煤机的前方、后方均布置有板车，板车上均设置有除尘风机，除尘风机上均匀布置有多个第二风水喷嘴，除尘风机上方布置有高压微雾喷嘴，采煤机的滚筒通过相应风筒与对应除尘风机相连通；液压支架的立柱与采煤机之间设置有透明高强材料挡尘板，透明高强材料挡尘板的上方、下方分别设置有单水喷头，透明高强材料挡尘板的对应处设置有除尘刷，单水喷头与除尘刷配合用于清理透明高强材料挡尘板上的尘土；透明高强材料挡尘板与综采工作面形成封闭式截隔空间，配合除尘风机、第一风水喷嘴、第二风水喷嘴与高压微雾喷嘴对综采工作面进行隔尘-降尘。
所述的隔尘-降尘系统，其中，沿上述采煤机机身长度方向布置有自动喷雾架，自动喷雾架上布置有相应喷嘴。
所述的隔尘-降尘系统，其中，上述采煤机机身、除尘风机上均布置有多个粉尘浓度传感器、位置传感器。
所述的隔尘-降尘系统，其中，上述隔尘-降尘系统配置有控制中心，除尘风机、第一风水喷嘴、第二风水喷嘴、高压微雾喷嘴、自动喷雾架、粉尘浓度传感器、位置传感器、单水喷头、除尘刷均与控制中心的中央处理器通信连接，控制中心用于控制隔尘-降尘系统的运行状态。
所述的隔尘-降尘系统，其中，上述相应风筒为能弯曲风筒，当采煤机工作时，滚筒处的部分煤尘经风筒由除尘风机抽出。
所述的隔尘-降尘系统，其中，上述除尘风机风量的调节：
当除尘风机变频调速控制装置接收到信号，因变频电机转速n＝60*频率/电极对数，又因风流流量与转速成正比关系，即风流流量Q
1/Q
2＝n
1/n
2，故除尘风机可以通过调整转速来调节风量的大小，其中n为变频电机转速，Q为风流风量。
所述的隔尘-降尘系统，其中，上述板车与采煤机机身对应处相连接，板车与采煤机保持相对静止，板车布置在综采工作面的刮板输送机轨道上，板车能沿刮板输送机轨道和采煤机同时移动。
所述的隔尘-降尘系统，其中，在采煤机机身长边远离煤壁一侧隔一定距离布置多个喷嘴，在采煤机机身中间位置的两侧布置可伸缩的上述自动喷雾架，自动喷雾架上下方各布置一组 喷嘴，上方一组喷嘴布置在自动喷雾架的上横杆上，喷雾方向向上，下方一组喷嘴布置在自动喷雾架的下横杆上，所有喷嘴的喷雾方向向上。
本发明提供的一种用于综采工作面采煤机截割产尘的隔尘-降尘方法及隔尘-降尘系统，除尘风机抽出滚筒割煤落下的大量粉尘，剩余的部分粉尘向整个工作面扩散，采煤机机身上的风水喷嘴开始喷水，将大颗粒的粉尘沉降下来，小颗粒的粉尘扩散到距离采煤机稍远的除尘风机处时，安装在除尘风机上方的高压微雾喷嘴进行喷雾，有效率的把粒径较小的粉尘颗粒沉降下来，通过在综采工作面的通风排尘、喷雾降尘、除尘风机除尘、隔尘措施，大大降低了综采工作面的粉尘量，改善了井下恶劣的环境。
图1为本发明中隔尘-降尘方法的流程示意图；
图2为本发明中隔尘-降尘系统的布局示意图；
图3为本发明中隔尘-降尘系统的侧视示意图。
本发明提供了一种用于综采工作面采煤机截割产尘的隔尘-降尘方法及隔尘-降尘系统，为使本发明的目的、技术方案及效果更加清楚、明确，以下对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供了一种用于综采工作面采煤机截割产尘的隔尘-降尘方法，如图1所示的，采煤机1开始工作，除尘风机5抽出滚筒2割煤落下的大量粉尘，剩余的部分粉尘向整个工作面扩散，采煤机1机身上的风水喷嘴开始喷水，将大颗粒的粉尘沉降下来，小颗粒的粉尘扩散到距离采煤机1稍远的除尘风机5处时，安装在除尘风机5上方的高压微雾喷嘴15进行喷雾，有效率的把粒径较小的粉尘颗粒沉降下来，同时，在立柱20前方设置的透明高强材料挡尘板21能够阻挡粉尘的大范围扩散，透明高强材料挡尘板21处单水喷嘴24、除尘刷22组成的挡尘机构，降低工作面的产尘的扩散。
更进一步的，采煤机1、除尘风机5、透明高强材料挡尘板21处的传感器检测到巷道内粉尘浓度以及采煤机1位置的信息，传输至中央处理器，中央处理器接收到相应信息，再控制除尘风机5风量大小和供水泵处水压大小，当粉尘浓度较大时，风量增大，增大除尘风机5风量和供水泵水压，来达到当前浓度下最好的除尘效果；当粉尘浓度小时，降低除尘风机5风量和供水泵水压；
采煤机1机身处布置煤机位置发射器，采煤机1移动时，安装在液压支架上的煤机位置接收器接收信号，在中央处理器的自动控制下，采煤机1上风侧若干架和下风侧全部液压支架处喷嘴和除尘刷开始工作。
本发明还提供了一种使用上述隔尘-降尘方法的综采工作面采煤机截割产尘之隔尘-降尘系统，如图1与图2所示的，其包括采煤机1，其中，采煤机1机身上均匀布置有多个第一风水喷嘴9，采煤机1的前方、后方均布置有板车，板车上均设置有除尘风机5，除尘风机5上均匀布置有多个第二风水喷嘴18，除尘风机5上方布置有高压微雾喷嘴15，采煤机1的滚筒2通过相应风筒12与对应除尘风机5相连通；液压支架25的立柱20与采煤机1之间设置有透明高强材料挡尘板21，透明高强材料挡尘板21的上方、下方分别设置有单水喷头24，透明高强材料挡尘板21的对应处设置有除尘刷22，单水喷头24与除尘刷22配合用于清理透明高强材料挡尘板21上的尘土；透明高强材料挡尘板21与综采工作面形成封闭式截隔空间，配合除尘风机5、第一风水喷嘴9、第二风水喷嘴18与高压微雾喷嘴15对综采工作面进行隔尘-降尘。
而且，沿上述采煤机1机身长度方向布置有自动喷雾架13，自动喷雾架13上布置有相应喷嘴。上述采煤机1机身、除尘风机5上均布置有多个粉尘浓度传感器7、位置传感器8。
更进一步的，上述隔尘-降尘系统配置有控制中心，除尘风机5、第一风水喷嘴9、第二风水喷嘴18、高压微雾喷嘴15、自动喷雾架13、粉尘浓度传感器7、位置传感器8、单水喷头24、除尘刷22均与控制中心的中央处理器通信连接，控制中心用于控制隔尘-降尘系统的运行状态。并且上述相应风筒12为能弯曲风筒，当采煤机1工作时，滚筒2处的部分煤尘经风筒由除尘风机抽出。
尤其是，上述除尘风机5风量的调节：
当除尘风机5变频调速控制装置接收到信号，因变频电机转速n＝60*频率/电极对数，又因风流流量与转速成正比关系，即风流流量Q
1/Q
2＝n
1/n
2，故除尘风机可以通过调整转速来调节风量的大小，其中n为变频电机转速，Q为风流风量。上述板车与采煤机1机身对应处相连接，板车与采煤机1保持相对静止，板车布置在综采工作面的刮板输送机轨道上，板车能沿刮板输送机轨道和采煤机1同时移动。在采煤机1机身长边远离煤壁一侧隔一定距离布置多个喷嘴，在采煤机机身中间位置的两侧布置可伸缩的上述自动喷雾架13，自动喷雾架13上下方各布置一组喷嘴，上方一组喷嘴布置在自动喷雾架13的上横杆上，喷雾方向向上，下方一组喷嘴布置在自动喷雾架13的下横杆上，所有喷嘴的喷雾方向向上。
为了更进一步描述本发明，以下列举更为详尽的实施例进行说明。
隔尘-降尘系统主要包括采煤机1、滚筒2、采煤机1机身设置有第一风水喷嘴9，采煤机1前方和后方分别设有除尘风机5，除尘风机5机身装有第二风水喷嘴18、粉尘浓度传感器10、位置发射器11，通过风筒12与采煤机1的滚筒2固定，为了在综采工作面形成一个封闭空间而更好的降尘，在立柱20前方设有透明高强材料挡尘板21，上方设有单水喷嘴6、 粉尘浓度传感器7、位置接收器8，透明高强材料挡尘板21上会粘结大量粉尘，在透明高强材料挡尘板21下方设有除尘刷22，在这一综采工作面降尘装置工作时，使矿尘浓度降到最低，并能保证采煤机操作人员清晰的观察采煤情况。
而且采煤机1开始工作时，除尘风机5启动，抽出滚筒2割煤落下的粉尘，部分粉尘向整个工作面扩散，采煤机1机身上第一风水喷嘴9开始喷水，能够将颗粒较大的一些粉尘沉降下来，颗粒较小的粉尘在扩散到距离采煤机1稍远的除尘风机5处时，安装在除尘风机5上方的高压微雾喷嘴15，喷出的雾滴能够更有效率的把粒径较小的粉尘颗粒沉降下来，同时，在立柱20前方设置的透明高强材料挡尘板21能够阻挡粉尘的大范围扩散，透明高强材料挡尘板21处单水喷嘴24、除尘刷22组成的挡尘装置，结合整个工作面降尘措施，能够有效的降低工作面的产尘，给工人提供一个良好的工作环境。
如图3所示，采煤机1、除尘风机5、透明高强材料挡尘板21处的粉尘浓度传感器、位置接收器8接收到巷道内浓度、采煤机1位置等信息反馈到控制中心的中央处理器，中央处理器接收到信号，再发送到除尘风机5、供水泵处，调节除尘风机5风量大小和供水泵处水压大小，当粉尘浓度较大时，风量增大，供水泵水压增大，来达到当前浓度下最好的除尘效果，当粉尘浓度小时，传感器反馈给中央处理器，来降低除尘风机风量和供水泵水压大小。
更进一步地，如图1与图3所示的，所述采煤机1割煤过程中在工作面内产生大量粉尘，在采煤机1的滚筒2对应处布置风筒12连接除尘风机5，比如，前滚筒和采煤机1前方的除尘风机相连，后滚筒和采煤机1后方的除尘风机相连；所述风筒12为可弯曲风筒，当采煤机工作时，滚筒2处的部分煤尘经风筒由除尘风机5抽出。
除尘风机5是固定在采煤机1前、后方的板车上的通风机，在除尘风机5的机身上安装相应的喷嘴、矿尘浓度传感器10、位置发射器11；除尘风机5上方的高压微雾喷嘴15喷雾，使从采煤机1附近扩散到除尘风机5处的粉尘粒径不断减小，上方采用高压微雾喷嘴对小粒径粉尘更有效，中部采用第二风水喷嘴18，对于粒径稍大的粉尘有效的控制，除尘风机5下部采用单水喷嘴19，针对刮板输送机上的落煤及底板上沉降的大粒径粉尘，同时，除尘风机5抽风口处布置也单水喷嘴，水雾喷向风机叶片，将风机抽出的大多数粉尘沉降下来。
而粉尘浓度传感器7将检测到的浓度值传递到中央处理器，当工作面粉尘浓度过大时，会影响工人的健康和工作面的可见度，所以当工作面浓度增大时，中央处理器将信号传递到除尘风机5的转速变频装置和喷雾泵柱塞往返次数变频装置来增大风量和喷雾压力。
板车与采煤机1连接，与采煤机1保持相对静止，采煤机1前后方各布置一除尘风机5，除尘风机5放在板车上，沿刮板输送机轨道和采煤机1同时移动；
在采煤机1机身长边远离煤壁一侧隔一定距离布置多个喷嘴，在采煤机机身中间位置的 两侧布置可伸缩的上述自动喷雾架13，自动喷雾架13上下方各布置一组喷嘴，上方一组喷嘴布置在自动喷雾架13的上横杆上，喷雾方向向上，下方一组喷嘴布置在自动喷雾架13的下横杆上，所有喷头的喷雾方向向上，当液压支架25较大时，自动喷雾架13在人为控制下，通过人机界面可以设置喷雾架的升降高度，来实现喷雾架的自动控制。
自动喷雾架13可以在不同的液压支架25下自动调节支架高度，当液压支架25较小，采煤机1机身上的喷嘴喷雾可以达到降尘效果时，自动喷雾架13可以完全降下来，并且底部可以转动，横置在采煤机机身处。
立柱20前方的挡尘装置为透明高强材料挡尘板21，透明高强材料挡尘板21布置在立柱20和电缆槽之间，透明高强材料挡尘板21处布置单水喷嘴24，水雾喷向透明高强材料挡尘板21，清洁透明高强材料挡尘板21上粘结的粉尘，同时，在透明高强材料挡尘板21上下方设置除尘刷22，来有效的清除挡板上的粉尘，防止粉尘阻挡工作视线，提高工作效率。
每个液压支架25之间布置两个喷嘴，每个液压支架25安装两块透明高强材料挡尘板21，组成一个连续的透明高强材料挡板；每两个液压支架25安装两个除尘刷22，由电机驱动，单水喷嘴24喷水时，除尘刷22开始工作；
采煤机1处安装位置发射器11，采煤机1移动时，位置发射器可以有效的将采煤机1位置信息发送给安装在每个液压支架25的立柱20处的位置接收器8，当采煤机1上风侧若干个液压支架25和下风侧全部液压支架25接收到采煤机1的位置信号时，透明高强材料挡尘板21上单水喷嘴24开始喷水，除尘刷开始工作。
当然，以上说明仅仅为本发明的较佳实施例，本发明并不限于列举上述实施例，应当说明的是，任何熟悉本领域的技术人员在本说明书的教导下，所做出的所有等同替代、明显变形形式，均落在本说明书的实质范围之内，理应受到本发明的保护。
Claims (10)
- 一种用于综采工作面采煤机截割产尘的隔尘-降尘方法，其包括以下步骤：采煤机开始工作，除尘风机抽出滚筒割煤落下的大量粉尘，剩余的部分粉尘向整个工作面扩散，采煤机机身上的风水喷嘴开始喷水，将大颗粒的粉尘沉降下来，小颗粒的粉尘扩散到距离采煤机稍远的除尘风机处时，安装在除尘风机上方的高压微雾喷嘴进行喷雾，有效率的把粒径较小的粉尘颗粒沉降下来，同时，在立柱前方设置的透明高强材料挡尘板能够阻挡粉尘的大范围扩散，透明高强材料挡尘板处单水喷嘴、除尘刷组成的挡尘机构，降低工作面的产尘的扩散。
- 根据权利要求1所述的隔尘-降尘方法，其特征在于，上述步骤具体的还包括：采煤机、除尘风机、透明高强材料挡尘板处的传感器检测到巷道内粉尘浓度以及采煤机位置的信息，传输至中央处理器，中央处理器接收到相应信息，再控制除尘风机风量大小和供水泵处水压大小，当粉尘浓度较大时，风量增大，增大除尘风机风量和供水泵水压，来达到当前浓度下最好的除尘效果；当粉尘浓度小时，降低除尘风机风量和供水泵水压；采煤机机身处布置煤机位置发射器，采煤机移动时，安装在液压支架上的煤机位置接收器接收信号，在中央处理器的自动控制下，采煤机上风侧若干架和下风侧全部液压支架处喷嘴和除尘刷开始工作。
- 一种使用如权利要求1所述隔尘-降尘方法的综采工作面采煤机截割产尘之隔尘-降尘系统，其包括采煤机，其特征在于，采煤机机身上均匀布置有多个第一风水喷嘴，采煤机的前方、后方均布置有板车，板车上均设置有除尘风机，除尘风机上均匀布置有多个第二风水喷嘴，除尘风机上方布置有高压微雾喷嘴，采煤机的滚筒通过相应风筒与对应除尘风机相连通；液压支架的立柱与采煤机之间设置有透明高强材料挡尘板，透明高强材料挡尘板的上方、下方分别设置有单水喷头，透明高强材料挡尘板的对应处设置有除尘刷，单水喷头与除尘刷配合用于清理透明高强材料挡尘板上的尘土；透明高强材料挡尘板与综采工作面形成封闭式截隔空间，配合除尘风机、第一风水喷嘴、第二风水喷嘴与高压微雾喷嘴对综采工作面进行隔尘-降尘。
- 根据权利要求3所述的隔尘-降尘系统，其特征在于，沿上述采煤机机身长度方向布置有自动喷雾架，自动喷雾架上布置有相应喷嘴。
- 根据权利要求3所述的隔尘-降尘系统，其特征在于，上述采煤机机身、除尘风机上均布置有多个粉尘浓度传感器、位置传感器。
- 根据权利要求5所述的隔尘-降尘系统，其特征在于，上述隔尘-降尘系统配置有控制中心，除尘风机、第一风水喷嘴、第二风水喷嘴、高压微雾喷嘴、自动喷雾架、粉尘浓度传感器、位置传感器、单水喷头、除尘刷均与控制中心的中央处理器通信连接，控制中心用于 控制隔尘-降尘系统的运行状态。
- 根据权利要求6所述的隔尘-降尘系统，其特征在于，上述相应风筒为能弯曲风筒，当采煤机工作时，滚筒处的部分煤尘经风筒由除尘风机抽出。
- 根据权利要求6所述的隔尘-降尘系统，其特征在于，上述除尘风机风量的调节：当除尘风机变频调速控制装置接收到信号，因变频电机转速n＝60*频率/电极对数，又因风流流量与转速成正比关系，即风流流量Q 1/Q 2＝n 1/n 2，故除尘风机可以通过调整转速来调节风量的大小，其中n为变频电机转速，Q为风流风量。
- 根据权利要求6所述的隔尘-降尘系统，其特征在于，上述板车与采煤机机身对应处相连接，板车与采煤机保持相对静止，板车布置在综采工作面的刮板输送机轨道上，板车能沿刮板输送机轨道和采煤机同时移动。
- 根据权利要求4所述的隔尘-降尘系统，其特征在于，在采煤机机身长边远离煤壁一侧隔一定距离布置多个喷嘴，在采煤机机身中间位置的两侧布置可伸缩的上述自动喷雾架，自动喷雾架上下方各布置一组喷嘴，上方一组喷嘴布置在喷雾架的上横杆上，喷雾方向向上，下方一组喷嘴布置在喷雾架的下横杆上，所有喷嘴的喷雾方向向上。
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