CN114183186A - Fully mechanized coal mining face dry type dust removal device and method - Google Patents
Fully mechanized coal mining face dry type dust removal device and method Download PDFInfo
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- CN114183186A CN114183186A CN202111501228.5A CN202111501228A CN114183186A CN 114183186 A CN114183186 A CN 114183186A CN 202111501228 A CN202111501228 A CN 202111501228A CN 114183186 A CN114183186 A CN 114183186A
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- 239000000428 dust Substances 0.000 title claims abstract description 279
- 238000005065 mining Methods 0.000 title claims abstract description 202
- 239000003245 coal Substances 0.000 title claims abstract description 175
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000005507 spraying Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
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- 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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
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Abstract
The invention mainly discloses a dry type dust removal device and a method for a fully mechanized coal mining face, wherein the device comprises: the main air pipe and the two coal mining machine follow-up accessories arranged on the coal mining machine are connected, and one end of the main air pipe is connected with a dry type dust removal mechanism. The main air pipe comprises a plurality of dust collection sections, each dust collection section is respectively provided with a sectional type dust collection cover and a sectional type control valve in movable connection, each sectional type control valve is provided with an opening end and a closing end, and when the opening end is touched by one of the coal mining machine follow-up accessories, the sectional type dust collection cover of the dust collection section close to the coal mining machine in motion is controlled to be opened, and the main air pipe behind the dust collection section is closed; and the closed end is used for controlling to close the sectional type dust hood of the dust collection section far away from the coal mining machine when the closed end is touched by another coal mining machine follow-up auxiliary element, and unsealing the main air pipe behind the dust collection section. The invention adopts a dry dust removal method, and when the coal mining machine runs to any position, the corresponding sectional type dust hood can be automatically opened, so that additional workers are not needed, the automatic work is realized, and the dust removal efficiency is improved.
Description
Technical Field
The invention relates to the field of fully mechanized coal mining face dust removal, in particular to a dry type dust removal device and method for a fully mechanized coal mining face.
Background
At present, a wet dust removal method is mainly adopted for dust removal in a coal mine, and the principle is as follows: the fully mechanized mining face is mined, the upstream press-in type ventilator operates, fresh air is blown into the fully mechanized mining face from one side of the mining face, the coal mining machine moves back and forth along the rail and performs coal cutting operation, meanwhile, the fully mechanized mining face adopts water mist injection to reduce dust, dust generated by coal cutting of the coal mining machine enters the return air crossheading along with wind flow, and dust is removed and purified by a dust remover in the return air crossheading. Through investigation, the dust removal efficiency of the fully mechanized coal mining face is not more than 65%.
The dry dust removal equipment for the coal mine has better dust removal efficiency, but still has a plurality of problems in practical application. The dust generation point in the fully mechanized mining face is at the contact part of a cutting roller of a coal mining machine and a coal bed, the dust generation point is a change point along a straight line due to the fact that the coal mining machine performs reciprocating cutting motion along the working face in the working process, and a dry dust remover cannot be directly arranged in the working face due to the fact that fixing equipment of the fully mechanized mining face, such as the coal mining machine and a hydraulic support, occupies a large space and the remaining space is small, dust cannot be effectively sucked in the first time in the occurrence process, dust can only be reduced by water mist firstly, then dust-containing air flow flows along the fully mechanized mining face and is concentrated in a return air gateway of the mining face for treatment, and therefore the dust concentration can only be reduced by a wet dust removal mode in the coal mining work at present.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a dry type dust removal device and method for a fully mechanized coal mining face, which can clean dust in the first time and effectively improve the dust removal efficiency.
The invention discloses a dry dust removal device for a fully mechanized coal mining face, which comprises: the device comprises a main air pipe arranged on a fully mechanized mining face and two coal mining machine follow-up accessories arranged on a coal mining machine, wherein one end of the main air pipe is connected with a dry type dust removal mechanism arranged on a return air crossheading.
The main air pipe comprises a plurality of dust collection sections which are sequentially connected along the direction of the fully mechanized mining face, each dust collection section is respectively provided with a sectional type dust collection cover and a movably connected sectional type control valve, each sectional type control valve is provided with an opening end and a closing end, wherein the opening end is used for controlling the corresponding sectional type control valve to open the sectional type dust collection cover of the dust collection section which is close to the coal mining machine in motion and close the main air pipe behind the dust collection section when the opening end is touched by one of the coal mining machine follow-up accessories moving along with the coal mining machine; and the closed end is used for controlling the corresponding segmented control valve to close the segmented dust hood of the dust collection section far away from the coal mining machine when the closed end is touched by another coal mining machine follow-up auxiliary moving along with the coal mining machine, and unsealing the main air pipe behind the dust collection section.
Further, the dry dust removal mechanism includes: the air conditioner comprises a dry dust collector and a ventilator, wherein the air outlet of the main air pipe, the dry dust collector and the ventilator are sequentially connected in a sealing mode.
Further, still include: and the spraying device is arranged on the fully mechanized coal mining face.
Further, the two coal mining machine follow-up auxiliary parts are respectively arranged at the front end and the rear end of the coal mining machine.
The invention also discloses a dry dust removal system for the fully mechanized coal mining face, which comprises: the device comprises a main air pipe and a coal mining machine, wherein the main air pipe and the coal mining machine are arranged on a fully mechanized mining face, one end of the main air pipe is connected with a dry type dust removal mechanism arranged on a return air crossheading, and two coal mining machine follow-up accessories are arranged on the coal mining machine.
The main air pipe comprises a plurality of dust collection sections which are sequentially connected along the direction of the fully mechanized mining face, each dust collection section is respectively provided with a sectional type dust collection cover and a movably connected sectional type control valve, each sectional type control valve is provided with an opening end and a closing end, and the opening end is used for controlling the corresponding sectional type control valve to open the sectional type dust collection cover of the dust collection section which is close to the coal mining machine in motion and close the main air pipe behind the dust collection section when being touched by one of the coal mining machine follow-up accessories moving along with the coal mining machine; and the closed end is used for controlling the corresponding segmented control valve to close the segmented dust hood of the dust collection section away from which the coal mining machine moves when the closed end is touched by another coal mining machine follow-up auxiliary moving along with the coal mining machine, and unsealing the main air pipe behind the dust collection section.
Further, the dry dust removal mechanism includes: the air conditioner comprises a dry dust collector and a ventilator, wherein the air outlet of the main air pipe, the dry dust collector and the ventilator are sequentially connected in a sealing mode.
Further, combine and adopt working face dry-type dust pelletizing system still includes: and any dust collection section at least comprises one spraying device and is used for spraying and dedusting the dust collection section.
Further, the two coal mining machine follow-up auxiliary parts are respectively arranged at the front end and the rear end of the coal mining machine.
The invention also discloses a fully mechanized coal mining face dry dust removal method, which is applied to the fully mechanized coal mining face dry dust removal device or the fully mechanized coal mining face dry dust removal system, and the method comprises the following steps:
starting a dry dust removal mechanism along with the movement of a coal mining machine on a fully mechanized mining face, wherein one coal mining machine follow-up accessory touches an opening end of a dust collection section close to the movement of the coal mining machine, controls the corresponding segmented control valve to open the segmented dust collection cover of the dust collection section, and seals the main air pipe behind the dust collection section; the other coal mining machine follow-up auxiliary element touches the closed end of the dust collection section far away from which the coal mining machine moves, controls the corresponding sectional control valve to close the sectional type dust collection cover of the dust collection section, and unseals the main air pipe behind the dust collection section;
the dry type dust removal mechanism removes dust from air entering through the main air pipe, discharges the purified air and collects the air into a mine air return network.
The invention has at least the following beneficial effects:
the invention applies the dry dust removal technology to the underground fully mechanized mining work of the coal mine, when the coal mining machine runs to any position, the corresponding sectional dust hood can be automatically opened, no additional staff is needed, the automatic work is realized, and the dust removal efficiency is greatly improved. The dust removal device can be used in combination with a wet dust removal mode, can effectively treat dust pollution of fully mechanized coal mining face, and improves dust removal efficiency of the fully mechanized coal mining face from about 65% to nearly 80%.
The invention effectively solves the application problem of the dry type dust removal process for the coal mine in the fully mechanized coal mining face. The method has important value improvement on the aspects of coal mine underground occupational health, environmental protection and intelligent level.
Other advantageous effects of the present invention will be described in detail in the detailed description section.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an operation schematic diagram (state one) of a fully mechanized mining face dry dust removal device disclosed by the preferred embodiment of the invention.
Fig. 2 is an operation schematic diagram (state two) of the fully mechanized mining face dry dust removal device disclosed by the preferred embodiment of the invention.
Fig. 3 is a schematic structural diagram of a fully mechanized mining face dry dust removal device disclosed by the preferred embodiment of the invention.
The system comprises a ventilator 1, a dry dust collector 2, a main air pipe 3, a sectional dust hood 4, a sectional control valve 5 and a coal mining machine follow-up auxiliary part 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in fig. 1 to 3, the invention discloses a dry dust removing device for a fully mechanized coal mining face, comprising:
(1) the main air duct 3 is arranged on the fully mechanized coal mining face and is formed by sequentially connecting a plurality of dust collection sections, so that dust sucked by the fully mechanized coal mining face is conveyed to the dry type dust collection mechanism for dust collection treatment.
(2) And the dry type dust removal mechanism is arranged in the return air gateway, is connected with the main air duct 3, and is used for sucking the gas with dust in the main air duct 3 and performing dry type dust removal treatment. Preferably, the dry dust removing mechanism includes: the air-conditioning system comprises a dry dust collector 2 and a ventilator 1, wherein one end of a main air pipe 3 used for air outlet, the dry dust collector 2 and the ventilator 1 are sequentially connected in a sealing manner. The air purified by the dry dust collector 2 is discharged from the tail part of the ventilator 1 and is converged into the total return air flow of the mine.
(3) The sectional type dust hood 4 is used for sucking dust of the dust suction section and is arranged on the main air duct 3 along the direction of the fully mechanized mining face and communicated with the interior of the main air duct 3, wherein at least one sectional type dust hood 4 is arranged on each dust suction section of the main air duct 3, so that the dust suction action range of the invention can cover the whole range of the arrangement of the main air duct 3. It is worth mentioning that the number of the sectional dust hoods 4 can be determined by those skilled in the art according to the actual situation of the fully mechanized mining face, various parameters of the coal mining machine, and the like.
(4) The segmented control valve 5 is movably connected with each dust collection segment, can control the opening and closing of the segmented dust collection cover 4 in the dust collection segment and can also control the on-off of the dust collection segment and the main air pipe 3 connected behind the dust collection segment. The sectional control valve 5 is provided with an opening end, the sectional control valve 5 can be controlled to open the corresponding sectional type dust hood 4 after the opening end is touched, the sectional type dust hood 4 sucks dust under the action of the ventilator 1, and meanwhile, the sectional control valve 5 seals the main air pipe 3 behind the dust sucking section. The sectional control valve 5 is also provided with a closed end, the sectional control valve 5 can be controlled to close the corresponding sectional type dust hood 4 after the contact, the sectional type dust hood 4 stops dust collection, and the main air pipe 3 behind the dust collection section is unsealed at the same time.
(5) And the two coal mining machine follow-up auxiliary parts 6 are arranged on the coal mining machine and move synchronously with the coal mining machine. The coal mining machine is used for mining coal on a fully mechanized coal mining face and can move on the track. Preferably, the coal mining machine follow-up accessory 6 may employ a latch-type element, also referred to as a "stop iron", among mechanical elements, one of which is used to touch the open end of the segment control valve 5 and the other is used to touch the closed end of the segment control valve 5.
Because the dust on the fully mechanized mining face is mainly generated when the coal mining machine mines coal, in consideration of the efficiency and cost of dust removal operation, the sectional type dust hood 4 corresponding to the position of the dust collection section where the coal mining machine mines coal needs to be opened for dust collection, that is, the sectional control valve 5 of the sectional type dust hood 4 is opened to seal the dust collection section and the dust collection section connected later, and the dust collection section is ensured to be communicated with the dry dust removal mechanism. When the coal mining machine finishes the coal mining operation of the dust suction section and needs to enter the next dust suction section for coal mining, a large amount of dust cannot be generated in the dust suction section, and in order to ensure the dust suction efficiency, the fully mechanized mining face should ensure that the sectional type dust hood 4 of the dust suction section where the coal mining machine is located is opened for dust suction only when the coal mining machine operates, so that the sectional type dust hood 4 of the dust suction section where the coal mining machine moves away should be automatically closed when the coal mining machine leaves.
During specific implementation, the main air pipe 3 is arranged on the fully mechanized mining face, the dry type dust removing mechanism is arranged on the return air crossheading, the dry type dust removing mechanism is connected with the air outlet of the main air pipe 3, and preferably, the air outlet of the main air pipe 3 and the part near the air outlet of the main air pipe 3 can turn into the return air crossheading, so that the air outlet and the dry type dust removing mechanism are in sealed connection. The sectional type dust hood 4 is arranged according to the actual situation of the fully mechanized mining face, for example, one sectional type dust hood 4 is arranged at each dust suction section, so that the dust suction range of the sectional type dust hood 4 can cover the whole area of the corresponding dust suction section.
When the coal mining machine runs to a position corresponding to any dust suction section of the fully mechanized mining face (namely the dust suction section which is close to the movement of the coal mining machine), one coal mining machine servo-actuated accessory 6 touches the opening end of the sectional control valve 5, the sectional control valve 5 is controlled to open the sectional type dust hood 4 corresponding to the dust suction section, namely the sectional type dust hood 4 is communicated with the dust suction section, and dust passes through the sectional type dust hood 4 and the main air pipe 3 in sequence until a dry dust removal mechanism carries out dust removal treatment, so that dust collection operation can be always carried out on the working coal mining machine; and the segmented control valve 5 can isolate the dust collection segment from the dust collection segment connected later, so that wind power cannot be shared by the rear segmented dust collection covers 4, and the dust collection efficiency is improved.
The other coal mining machine follow-up auxiliary 6 touches the closed end of a dust collection section (i.e. the dust collection section far away from the coal mining machine) before the dust collection section, and controls the sectional control valve 5 to close the sectional type dust hood 4, so that the sectional type dust hood 4 is isolated from the dust collection section, the sectional type dust hood 4 of the dust collection section is prevented from distributing wind pressure, and the suction efficiency is reduced; because the dust suction section is in an open state before, the segmented control valve 5 seals the dust suction section and the subsequent dust suction section, and the dust suction section is also communicated with the subsequent dust suction section after the segmented control valve 5 is opened, so that dust sucked by the subsequent dust suction section can pass through and finally enters the dry type dust removal mechanism.
Based on the structure, along with the operation of the coal mining machine on the track, the sectional type dust hood 4 corresponding to the coal mining machine can be automatically opened to perform targeted dust collection, and other sectional type dust hoods 4 can be automatically closed, so that the wind pressure is prevented from being shared, and the dust collection efficiency is ensured.
In some embodiments of the present invention, the fully mechanized mining face dry dust removal device further comprises: the spraying device arranged on the fully mechanized mining face can spray and reduce dust when the coal mining machine mines coal.
In some embodiments of the invention, two coal winning machine follower accessories 6 are respectively arranged at the front and rear ends of the coal winning machine, both of which can adopt a bumper-like element in a mechanical structure, with the difference that both are respectively responsible for touching the opening end and the closing end. For example, when the shearer moves past the end of a certain suction section and enters the next suction section, one of the shearer follower aids 6 touches the open end of the suction section into which the shearer enters, and the second follower aid touches the closed end of the suction section from which the shearer leaves, and the touching of the two can be performed simultaneously.
For further illustration, the present invention also discloses the following examples:
a combine and adopt working face dry-type dust collector includes: the device comprises a ventilator 1, a dry dust collector 2, a main air pipe 3, a sectional dust hood 4, a sectional control valve 5 and a coal mining machine follow-up auxiliary 6. The inlet of the ventilator 1 is in butt joint with the outlet of the dry dust collector 2 and is arranged in the return air crossheading, the ventilator 1 is a mining draw-out ventilator 1, the inlet of the dry dust collector 2 is connected with the air outlet of the main air duct 3, the main air duct 3 turning into the return air crossheading part is totally enclosed, the main air duct 3 turning into the fully mechanized mining face part is arranged along the movement direction of the coal mining machine, each dust suction section of the fully mechanized mining face is provided with a sectional type dust suction cover 4 and a sectional control valve 5, and the installation quantity can be obtained by carrying out average decomposition according to the length of the fully mechanized mining face and the length of the sectional pipes. The coal mining machine follow-up auxiliary parts 6 are two collision iron type elements, which can also be called as 'stop irons', are respectively arranged at the front end and the rear end of the coal mining machine and are respectively used for touching the opening end and the closing end of each segment control valve 5. When the coal mining machine moves and needs to enter a corresponding dust collection range of a certain dust collection section, the coal mining machine follow-up auxiliary 6 at the front end of the coal mining machine touches the opening end of the sectional control valve 5 of the entering dust collection section to open the corresponding sectional type dust collection cover 4, and the coal mining machine follow-up auxiliary 6 at the rear end of the coal mining machine touches the closing end of the sectional control valve 5 of the leaving dust collection section to close the corresponding sectional type dust collection cover 4. When the coal mining machine operates in a reciprocating mode, the sectional type dust hood 4 corresponding to the upper portion of the cutting roller of the coal mining machine is always in an opening state, dust generated when the coal mining machine cuts a coal seam is sucked into the main air duct 3 for the first time, then the dust flows through the dry dust collector 2 to be purified, and then the dust is discharged from the tail portion of the ventilator 1 and is converged into the total return air flow of a mine.
The invention also discloses a fully mechanized coal mining face dry dust removal system, which comprises the fully mechanized coal mining face dry dust removal device of any embodiment, and in addition, the fully mechanized coal mining face dry dust removal system further comprises: the coal mining machine follow-up auxiliary parts 6 are arranged on the coal mining machine, preferably, the two coal mining machine follow-up auxiliary parts are respectively arranged at the front end and the rear end of the coal mining machine.
The working state of the whole fully mechanized mining face after the application of the invention is shown in figure 3, the whole fully mechanized mining face is pushed from right to left, after the coal mining machine passes, the hydraulic support pushes the track of the coal mining machine to move forward to be close to the coal wall, then the hydraulic support moves forward automatically, so that the cutting roller of the coal mining machine can still cut the coal wall when the coal mining machine returns, the coal mining machine cuts the coal wall from inside to outside to inside in a reciprocating manner along the mining face to perform mining work, and a goaf is left behind the hydraulic support. When the coal mining machine starts to work on the fully mechanized mining face, the ventilator 1 and the dry dust collector 2 in the return air crossheading are started and work, fresh air is blown into the fully mechanized mining face from one side of the mining face, the coal mining machine moves along a track and performs coal cutting operation, the coal mining machine servo auxiliary 6 mounted on the coal mining machine controls the opening and closing of the segmented control valve 5 in the walking process of the coal mining machine, the corresponding segmented dust hood 4 above the coal mining machine is always controlled to be in an open state, dust generated by coal cutting is sucked by wind energy generated by the opening end of the segmented dust hood 4 nearby and enters the dry dust collector 2 through the main air pipe 3 for purification, and purified air is discharged through the tail of the ventilator 1 and is collected into a mine return air network.
The invention also discloses a dry dust removal method for the fully mechanized coal mining face, which is applied to the dry dust removal device or the dry dust removal system for the fully mechanized coal mining face disclosed by any embodiment, and the method comprises the following steps:
starting a dry dust removal mechanism along with the movement of a coal mining machine on a fully mechanized mining face, wherein one coal mining machine follow-up accessory 6 touches the opening end of a dust collection section close to the movement of the coal mining machine, controls the corresponding segmented control valve 5 to open the segmented dust collection cover 4 of the dust collection section, and closes the main air pipe 3 behind the dust collection section; and the other coal mining machine follow-up auxiliary element 6 touches the closed end of the dust collection section far away from the coal mining machine, controls the corresponding sectional control valve 5 to close the sectional type dust collection cover 4 of the dust collection section, and unseals the main air pipe 3 behind the dust collection section. The dry type dust removal mechanism removes dust from air entering through the main air pipe, discharges the purified air and collects the air into a mine air return network.
It should be noted that the dry dust collector 2, the ventilator 1, and the segment control valve 5 according to the present invention may be commercially available or custom-made products, and are not limited to the products related to the embodiments and drawings herein, and detailed structures and principles thereof are not described herein.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (9)
1. The utility model provides a combine and adopt working face dry-type dust collector which characterized in that includes: the system comprises a main air pipe arranged on a fully mechanized mining face and two coal mining machine follow-up accessories arranged on a coal mining machine, wherein one end of the main air pipe is connected with a dry type dust removal mechanism arranged on a return air crossheading;
the main air pipe comprises a plurality of dust collection sections which are sequentially connected along the direction of the fully mechanized mining face, each dust collection section is respectively provided with a sectional type dust collection cover and a movably connected sectional type control valve, each sectional type control valve is provided with an opening end and a closing end, wherein the opening end is used for controlling the corresponding sectional type control valve to open the sectional type dust collection cover of the dust collection section which is close to the coal mining machine in motion and close the main air pipe behind the dust collection section when the opening end is touched by one of the coal mining machine follow-up accessories moving along with the coal mining machine; and the closed end is used for controlling the corresponding segmented control valve to close the segmented dust hood of the dust collection section far away from the coal mining machine when the closed end is touched by another coal mining machine follow-up auxiliary moving along with the coal mining machine, and unsealing the main air pipe behind the dust collection section.
2. The fully mechanized mining face dry dedusting apparatus of claim 1, wherein the dry dedusting mechanism comprises: the air conditioner comprises a dry dust collector and a ventilator, wherein the air outlet of the main air pipe, the dry dust collector and the ventilator are sequentially connected in a sealing mode.
3. The dry dedusting apparatus for the fully mechanized mining face of claim 1, further comprising: and the spraying device is arranged on the fully mechanized coal mining face.
4. The fully mechanized mining face dry dust removal device of claim 1, wherein the two coal mining machine follow-up accessories are respectively arranged at the front end and the rear end of the coal mining machine.
5. The utility model provides a combine and adopt working face dry-type dust pelletizing system which characterized in that includes: the system comprises a main air pipe and a coal mining machine, wherein the main air pipe and the coal mining machine are arranged on a fully mechanized mining face, one end of the main air pipe is connected with a dry type dust removal mechanism arranged in a return air crossheading, and the coal mining machine is provided with two coal mining machine follow-up accessories;
the main air pipe comprises a plurality of dust collection sections which are sequentially connected along the direction of the fully mechanized mining face, each dust collection section is respectively provided with a sectional type dust collection cover and a movably connected sectional type control valve, each sectional type control valve is provided with an opening end and a closing end, and the opening end is used for controlling the corresponding sectional type control valve to open the sectional type dust collection cover of the dust collection section which is close to the coal mining machine in motion and close the main air pipe behind the dust collection section when being touched by one of the coal mining machine follow-up accessories moving along with the coal mining machine; and the closed end is used for controlling the corresponding segmented control valve to close the segmented dust hood of the dust collection section away from which the coal mining machine moves when the closed end is touched by another coal mining machine follow-up auxiliary moving along with the coal mining machine, and unsealing the main air pipe behind the dust collection section.
6. The fully mechanized coal mining face dry dedusting system of claim 5, wherein the dry dedusting mechanism comprises: the air conditioner comprises a dry dust collector and a ventilator, wherein the air outlet of the main air pipe, the dry dust collector and the ventilator are sequentially connected in a sealing mode.
7. The fully mechanized coal mining face dry dust removal system of claim 5, further comprising: and any dust collection section at least comprises one spraying device and is used for spraying and dedusting the dust collection section.
8. The fully mechanized coal mining face dry dedusting system of claim 5, wherein two of the shearer followers are respectively disposed at front and rear ends of the shearer.
9. A dry dust removal method for a fully mechanized coal mining face is applied to a dry dust removal device of the fully mechanized coal mining face of any one of claims 1 to 4 or a dry dust removal system of the fully mechanized coal mining face of any one of claims 5 to 8, and the method comprises the following steps:
starting a dry dust removal mechanism along with the movement of a coal mining machine on a fully mechanized mining face, wherein one coal mining machine follow-up accessory touches an opening end of a dust collection section close to the movement of the coal mining machine, controls the corresponding segmented control valve to open the segmented dust collection cover of the dust collection section, and seals the main air pipe behind the dust collection section; the other coal mining machine follow-up auxiliary element touches the closed end of the dust collection section far away from which the coal mining machine moves, controls the corresponding sectional control valve to close the sectional type dust collection cover of the dust collection section, and unseals the main air pipe behind the dust collection section;
and the dry type dust removal mechanism removes dust from air entering through the main air pipe, discharges the purified air and converges the air into a mine air return network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501228.5A CN114183186B (en) | 2021-12-09 | 2021-12-09 | Dry dust removal device and method for fully-mechanized coal mining face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501228.5A CN114183186B (en) | 2021-12-09 | 2021-12-09 | Dry dust removal device and method for fully-mechanized coal mining face |
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