CN117145563A

CN117145563A - Tracking type precise dust removal and safety detection control system for tunneling working face

Info

Publication number: CN117145563A
Application number: CN202311128441.5A
Authority: CN
Inventors: 李世航; 韩沐泽; 彭港成; 陈兴岳; 靳昊; 桂长庚; 侯钧; 户书达; 郭乔松; 周安康; 魏英超; 佘晓东; 欧思洁; 侯淦; 黄渝杰; 高博涵; 李庚骏; 骆宇晨
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2023-09-04
Filing date: 2023-09-04
Publication date: 2023-12-01
Anticipated expiration: 2043-09-04
Also published as: CN117145563B

Abstract

The tunneling machine main body is provided with a pose sensor, a hazard warning lamp, an onboard magnetized water storage tank, a fog curtain spray head and an Internet of things device control mechanism; the two Internet of things deformation identification control mechanisms are respectively arranged at the front side and the rear side of the heading machine; the dust source tracking type compressed air fog curtain self-moving mechanism is positioned above the heading machine and consists of an air duct connecting ring, an adjustable fog curtain generating device, a telescopic air duct and an electric hydraulic support; the air duct connecting ring is connected with the air pressing fan; one side of the end part of the adjustable fog curtain generating device is connected with a plurality of fog curtain spray heads; the telescopic air duct is respectively connected with an air duct connecting ring and an adjustable fog curtain generating device; the electric hydraulic support is respectively connected with the air duct connecting ring and the adjustable fog curtain generating device; the dust collection openings of the surrounding type variable-diameter dust collection mechanism are positioned around the heading machine and are connected with the dust inlet of the wet dust collector. The system can accurately position spray mist drops to remove dust generated in tunneling operation.

Description

Tracking type precise dust removal and safety detection control system for tunneling working face

Technical Field

The invention belongs to the technical field of industrial energy-saving dust removal, and particularly relates to a tracking type precise dust removal and safety detection control system for a tunneling working face.

Background

Mineral dust is one of the most serious hazards in coal mine production, and the large-scale pushing of a heading machine remarkably improves the mechanization level and efficiency of the heading operation, but leads to the sharp rise of dust concentration of a heading face. Various unavoidable problems, such as a great deal of dust generated in the mining process, shortage of energy under mine, shortage of water resources and the like, occur while the coal mining technology is increasingly developed. The fly ash generated in the operation process not only can cause great damage to the health of mining workers, but also can reduce the service life of mechanical and electronic equipment and increase the mining cost.

In order to effectively treat high-concentration dust in a fully-mechanized excavating working face, dust control technologies such as spraying, foam, a dust removing fan, a dust blocking air curtain and the like matched with a heading machine are developed at home and abroad in recent years, and the technologies play a certain role in dust treatment, but cannot accurately remove dust aiming at a dust source, so that the problem of resource waste exists, and particularly when the spraying amount is too large, the waste of water resources is caused, and the working environment is deteriorated. Therefore, it is needed to provide a quantitative spraying and accurate dust source tracking dust treatment technology, which can efficiently treat dust and save energy to the greatest extent.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a tracking type precise dust removal and safety detection control system for a tunneling working face, which can remove dust on the working face at fixed points and at fixed time, and can effectively save water consumption while optimizing dust treatment.

In order to achieve the above purpose, the invention provides a tracking type precise dust removal and safety detection control system for a tunneling working face, which comprises a tunneling machine, a conveying belt, a compressed air fan, an Internet of things deformation identification control mechanism, a dust source tracking type compressed air fog curtain self-moving mechanism, a magnetized water tank, a surrounding type variable-diameter dust collection mechanism and a wet dust collector;

the heading machine mainly comprises a heading machine main body, a hazard warning lamp, an airborne magnetized water storage tank, a fog curtain spray head and an Internet of things device control unit; the heading machine main body is connected with a pose sensor for acquiring the pose signal of the heading machine head in real time; the hazard warning lamp is arranged at the top of the tunneling machine main body; the machine-mounted magnetized water storage tank is arranged at a position behind the top of the tunneling machine main body; the fog curtain spray head is arranged at the rear end of the top of the tunneling machine main body, and the water inlet end of the fog curtain spray head is connected with the water outlet end of a water supply pump arranged in the airborne magnetized water storage tank through a water conveying pipeline; the control unit of the Internet of things device is arranged on one side of the tunneling machine body and is respectively connected with the tunneling machine body, the pose sensor, the hazard warning lamp and the water supply pump;

The conveying belt is arranged at the lower side of the coal dropping port of the heading machine;

the air pressure fan is hoisted above the tunneling machine by a monorail, and a transition air duct extending along the tunneling direction is connected to an air pressure port of the air pressure fan;

the system comprises an Internet of things deformation identification control mechanism, an Internet of things device control unit and an Internet of things device control unit, wherein the number of the Internet of things deformation identification control mechanism is two, the Internet of things deformation identification control mechanism is respectively arranged on the front side and the rear side of a heading machine, the Internet of things deformation identification control mechanism consists of a connecting rod body, a pressure deformation detection device, an identification camera device and an Internet of things signal transmitter, the pressure deformation detection device is fixedly arranged at one end of the connecting rod body and is inserted into a wall body of a coal wall at one side, and is used for acquiring deformation signals of the coal wall and transmitting the acquired deformation signals to the Internet of things device control unit in real time through the Internet of things signal transmitter; the identification camera device is fixedly arranged at the other end of the connecting rod body and is used for collecting specific action image data of workers, identifying specific action instructions of the workers through the action image data and sending the identified action instructions to the control unit of the device of the Internet of things through the signal transmitter of the Internet of things; the internet of things signal transmitter is arranged at the top of the identification camera device and connected with the internet of things device control unit, and is used for transmitting data output by the internet of things device control unit to the outside;

The dust source tracking type compressed air curtain self-moving mechanism is positioned above the front end of the heading machine and consists of an air duct connecting ring, an adjustable curtain generating device, a telescopic air duct and an electric hydraulic support; the air duct connecting ring is of a circular ring structure, is fixedly connected with the end part of the transition air duct and is communicated with a compressed air port of the compressed air fan through the transition air duct, and a plurality of magnetized water pipe through holes I are formed in the circumferential direction on the annular surface of the air duct connecting ring; the adjustable fog curtain generating device and the air duct connecting ring are arranged opposite to each other and consist of a water storage bottom cover, a sealing gasket, a fog curtain top cover, an atomizing nozzle, a water pressure adjusting piece, an electric telescopic buckle and an electric hydraulic rod, wherein the water storage bottom cover is of a circular ring structure, two water storage grooves extending in a circumferential direction are symmetrically formed in the middle of an annular surface on the front side of the water storage bottom cover, and two strip-shaped separation parts are formed between the end parts of the two water storage grooves; the water storage bottom cover is provided with a plurality of magnetized water pipe through holes II at the part where each water storage groove is located; the sealing gasket consists of an annular sealing ring in a central area, two arc-shaped sealing strips symmetrically arranged on the outer sides of the annular sealing ring, and two sealing connecting strips respectively connecting the two opposite ends of the annular sealing ring with the centers of the two arc-shaped sealing strips; the size of the annular sealing ring is matched with the size of the water storage bottom cover at the inner side parts of the two water storage grooves; the size of the two arc-shaped sealing strips is matched with the size of the water storage bottom cover at the outer side parts of the two water storage grooves, and sliding grooves are formed in the two end parts of each arc-shaped sealing strip; the size of the two sealing connecting strips is matched with the size of the two strip-shaped separation blocking parts; the back side of the sealing gasket is connected to the front side of the water storage bottom cover in a laminating mode, the back side of the annular sealing ring is attached to the inner side parts of the water storage bottom cover in the two water storage grooves, the two sealing connecting strips are correspondingly attached to the two strip-shaped separation blocking parts, and the two arc-shaped sealing strips are attached to the outer side parts of the water storage bottom cover in the two water storage grooves; the annular surface of the fog curtain top cover is provided with a plurality of atomizing spray head mounting holes along the circumferential direction at the part corresponding to the two water storage grooves, and the atomizing spray heads are respectively arranged in the atomizing spray head mounting holes in a one-to-one correspondence manner; the rear side surface of the fog curtain top cover is connected to the front side surface of the sealing gasket in a fitting way; the two water pressure regulating sheets are arranged at the part between the water storage bottom cover and the fog curtain top cover opposite to each other, are positioned at the outer side of the annular sealing ring and are positioned in two arc-shaped spaces between the two arc-shaped sealing strips; each water pressure regulating piece is in sliding sealing fit with the water storage bottom cover and the fog curtain top cover, sliding convex teeth matched with the sliding grooves are arranged at two end parts of each water pressure regulating piece, and meanwhile, the two sliding convex teeth at two end parts of each water pressure regulating piece are inserted into the two sliding grooves at the end parts of the same side of the two arc-shaped sealing strips in a sliding manner; the two electric telescopic buckles are of U-shaped structures, the two electric telescopic buckles are arranged on the outer sides of the two water pressure regulating sheets opposite to each other, and two ends of a U-shaped opening of each electric telescopic buckle are fixedly connected with the water storage bottom cover and the fog curtain top cover respectively and are used for tightly pressing and connecting the water storage bottom cover, the sealing gasket and the fog curtain top cover into an integrated structure; the two pairs of electric hydraulic rods are oppositely arranged in the space between the two hydraulic pressure adjusting sheets and the two electric telescopic buckles, one end of each pair of electric hydraulic rods extends into the U-shaped groove of the corresponding electric telescopic buckle and is fixedly connected with the electric telescopic buckle, and the other end of each pair of electric hydraulic rods is fixedly connected with the outer edge surface of the bow peak of the corresponding hydraulic pressure adjusting sheet; the telescopic air duct is coaxially arranged between the air duct connecting ring and the adjustable fog curtain generating device, and two ends of the telescopic air duct are respectively connected with the front side surface of the air duct connecting ring and the rear side surface of the water storage bottom cover; the electric hydraulic supports are positioned between the air duct connecting ring and the adjustable fog curtain generating device and are uniformly distributed on the outer side of the telescopic air duct in the circumferential direction; the rear ends of the electric hydraulic supports are vertically and fixedly connected with the front side surface of the air duct connecting ring, and the front ends of the electric hydraulic supports are connected with the rear side surface of the water storage bottom cover through universal ball heads; the first electromagnetic reversing valves and the second electromagnetic reversing valves are respectively connected with the control unit of the Internet of things device;

The water outlet of the magnetized water tank is fixedly connected with the water inlet ends of the magnetized water delivery pipes, the water inlet ends of the magnetized water delivery pipes are correspondingly connected with a plurality of flow control valves, and the water outlet ends of the magnetized water delivery pipes penetrate through the magnetized water pipe through holes I, are inserted into the magnetized water pipe through holes II in a one-to-one manner, and are communicated with the water storage grooves; the flow control valves are connected with the control unit of the Internet of things device;

the surrounding type variable diameter dust collection mechanism consists of a main dust collection box body, a left dust collection arm, a right dust collection arm, a left dust collection box and a right dust collection box; the main dust collection box body is positioned at the lower side of the rear end of the tunneling machine main body, a dust collection pipeline communicated with the inner cavity of the main dust collection box body is fixedly connected to the central area of the rear side plate, a lower dust collection opening is formed in the lower end of the main dust collection box body, and the lower dust collection opening is obliquely formed in the upper direction from the left to the right and is used for absorbing dust generated when the tunneling machine main body drops coal to the conveying belt; the left dust collection arm and the right dust collection arm are arranged on the front side of the main dust collection box body side by side left and right and are positioned on the front side and the rear side of the tunneling machine main body, and the rear ends of the two dust collection arms are fixedly connected to the front side plate of the main dust collection box body and are communicated with the inner cavity of the main dust collection box body; the rear end of the left dust collection box is fixedly connected to the front end of the left dust collection arm and communicated with the front end of the left dust collection arm, and the front end of the left dust collection box is provided with a left dust collection opening; the rear end of the right side dust collection box is fixedly connected with the front end of the right dust collection arm and communicated with the front end of the right side dust collection arm, and the front end of the right side dust collection box is provided with a right dust collection opening; the left dust collection port and the right dust collection port are used for absorbing dust generated by a tunneling working face;

The wet dust collector is positioned at the rear side of the heading machine and at the upper side of the conveying belt, and the dust inlet of the wet dust collector is fixedly connected with the end part of a dust collection pipeline on the encircling variable-diameter dust collection mechanism.

Further, in order to facilitate adjustment of the dust collection range of the dust collection port, so as to improve the dust collection effect of the dust collection port and realize the purpose of comprehensive efficient dust collection, the left side dust collection box and the right side dust collection box are composed of a dust collection port support frame, a variable-diameter telescopic frame, a poking plate and a pull ring;

the front end of the dust collection port support frame is of an open structure, and the side surface of the dust collection port support frame, which is far away from the main body of the heading machine, is of an open structure; an upper chute extending in the left-right direction is formed in the top plate of the dust collection port support frame, the upper chute is a straight chute with a strip-shaped section, the opening end of the upper chute is positioned on the end edge of the top plate of the dust collection port support frame, which is far away from the heading machine, a lower chute extending in the left-right direction is formed in the bottom plate of the dust collection port support frame, the lower chute is an L-shaped chute with an L-shaped section, and the opening end of the lower chute is positioned on the end edge of the bottom plate of the dust collection port support frame, which is far away from the heading machine;

the front end of the variable-diameter expansion bracket is of an open structure and consists of a side supporting plate, a lower bottom plate, an upper top plate, a combined back plate, a folding hinge, a toggle plate, a ball bearing and a driver; the side support plate is arranged on one side far away from the heading machine, one end of the lower bottom plate far away from the heading machine is fixedly connected to the bottom edge of the side surface of the side support plate, the cross section of the lower bottom plate is L-shaped, the vertical section of the lower bottom plate is positioned at the rear end of the horizontal section of the lower bottom plate, and the size of the cross section of the lower bottom plate is matched with the size of the lower chute; the upper top plate is arranged above the lower bottom plate in parallel, one end far away from the heading machine is fixedly connected to the top edge of the side surface of the side support plate, the cross section of the upper top plate is in a straight shape, and the size of the upper top plate is smaller than that of the upper chute; the size of the combined back plate is matched with the size of a part between the rear end of the upper top plate and the rear end of the lower bottom plate, the combined back plate consists of a first back plate, a plurality of second back plates and a third back plate which are adjacent in sequence, the top edge of the first back plate is hinged with the rear end edge of the upper top plate through a folding hinge, the bottom edge of the first back plate is in butt fit with the front side of the bending part of the lower bottom plate, the top edge of each second back plate is hinged with the rear end edge of the upper top plate through another folding hinge, the bottom edge of the third back plate is in butt fit with the front side of the bending part of the lower bottom plate, and the top edge of the third back plate is hinged with the rear end edge of the upper top plate through another folding hinge; the toggle plate is arranged at the rear side of the combined backboard, is positioned close to the upper end edge of the combined backboard, and is arranged at a distance from the rear end edge of the upper side plate; the driving plate is fixedly connected with a rotating shaft at one side close to the side supporting plate, the rotating shaft is rotatably inserted into a mounting hole reserved in the side supporting plate through the ball bearing, the driver is mounted outside one side of the side supporting plate, the output end of the driver is fixedly connected with the end part of the rotating shaft and used for driving the driving plate to rotate through the rotating shaft, and then the combined back plate is folded towards the direction close to the upper top plate through rotating towards the direction close to the combined back plate or is in a vertical state under the action of dead weight through rotating towards the direction far from the combined back plate;

When the combined backboard is in a fully folded state, the combined backboard is attached to the lower side face of the upper top plate and is slidably inserted into an upper chute of the dust collection port support frame, meanwhile, a lower bottom plate and a bending part of the lower bottom plate are slidably inserted into a lower chute of the dust collection port support frame, and the variable-diameter telescopic frame is slidably matched with the upper top plate through the combined backboard slidably inserted into the upper chute and the lower bottom plate slidably inserted into the lower chute and the dust collection port support frame;

the pull ring is fixedly connected to the outer portion of one side of the side supporting plate and used for pulling the variable-diameter expansion bracket.

A flat upper chute is formed in the top plate of the dust collection port support frame, meanwhile, a lower chute with an L-shaped section is formed in the bottom plate of the dust collection port support frame, then the upper top plate of the variable-diameter telescopic frame and the folded combined back plate are slidably inserted into the upper chute, and the lower top plate of the variable-diameter telescopic frame is slidably inserted into the lower chute, so that the variable-diameter telescopic frame and the dust collection port support frame can be slidably matched in a sliding fit manner, the section size of the dust collection port can be conveniently changed, and the section size of the dust collection port can be flexibly changed in different dust yields; a toggle plate controlled by a driver is arranged at the rear side of the combined backboard, so that the folding action of the combined backboard can be automatically controlled; one side of the side supporting plate is fixedly connected with a pull ring, so that the pull ring can be used for pulling the position of the variable-diameter telescopic frame relative to the dust collection port supporting frame, and the purpose of manually adjusting the size of the right side dust collection box is achieved.

Further, in order to enable the first backboard, the second backboard and the third backboard to be connected in a blocking mode, the folding action can be sequentially carried out, the first backboard is provided with a first strip-shaped groove on the front side face close to one side of the second backboard, the second backboard is fixedly connected with a first strip-shaped positioning block on one side close to the first backboard, the first strip-shaped positioning block is matched with the first strip-shaped groove in a mutual positioning mode, the second backboard is provided with a second strip-shaped groove on the front side face close to one side of the third backboard, the third backboard is fixedly connected with a second strip-shaped positioning block on one side close to the second backboard, and the second strip-shaped positioning block is matched with the second strip-shaped groove in a mutual positioning mode.

Further, in order to improve the atomization effect, water can be sprayed on a dust source of a tunneling working face uniformly after being atomized, so that rapid sedimentation operation of dust generated in the tunneling process of the tunneling machine can be realized, and the aperture of the atomization nozzle is 1-5 mm.

Further, in order to improve the dust collection effect, the left dust collection opening and the right dust collection opening are gradually close to the direction of the main body of the heading machine from bottom to top.

Further, for the convenience of centralized control, the driver is connected with the control unit of the internet of things device.

Further, in order to be convenient for adjust position and the spraying volume of fog curtain shower nozzle according to the dust yield, still include dust concentration monitor, dust concentration monitor is connected with thing networking device control unit, and it installs on the entry driving machine main part, and is close to the position of entry driving machine aircraft nose for gather the dust concentration signal of entry driving working face. Like this, thing networking device control unit can control two pairs of electricity to the flexible volume of hydraulic stem according to the concentration of dust yield, and then can utilize two water pressure regulating tabs to change the area of two water storage recesses to can reach the purpose of adjusting atomized liquid water supply water pressure and flow, like this, just can realize comparatively accurate control to adjustable fog curtain generating device's fog curtain droplet volume according to the dust yield, can realize accurate dust control's purpose.

According to the invention, the danger warning lamp is arranged at the top of the tunneling machine main body, so that a person at a distance can find a warning condition in time when warning. The fog curtain spray head is arranged at the top of the tunneling machine main body and is connected with the water supply pump arranged in the airborne magnetized water storage tank through the water delivery pipeline, so that dust falling operation can be conveniently carried out on dust above the tunneling machine main body by utilizing the fog curtain spray head. The conveying belt is arranged at the lower side of the coal dropping opening of the heading machine, so that the mined coal can be conveniently conveyed to the outside. Two water storage grooves are symmetrically formed in the annular surface of the water storage bottom cover in the adjustable fog curtain generating device, a plurality of atomizing nozzle mounting holes are formed in corresponding parts of the fog curtain top cover in the adjustable fog curtain generating device, and a plurality of atomizing nozzles are correspondingly arranged in the plurality of atomizing nozzle mounting holes one by one, so that liquid entering the water storage grooves can be conveniently used as atomizing liquid of the atomizing nozzles; the sealing gasket is arranged between the water storage bottom cover and the fog curtain top cover, two water pressure regulating sheets are arranged in two arc-shaped spaces between two arc-shaped sealing strips on the sealing gasket, each water pressure regulating sheet is in sliding sealing fit with the water storage bottom cover and the fog curtain top cover, and meanwhile, sliding convex teeth at the end part of each water pressure regulating sheet are in sliding insertion fit with sliding grooves at the end parts of the arc-shaped sealing strips on the sealing gasket, so that the water storage bottom cover and the fog curtain top cover are always in sealing fit, and therefore, the liquid stored in the two water storage grooves is not leaked in the process of mutually approaching or mutually separating the two water pressure regulating sheets, and stable pressure water supply of the atomizing nozzle can be ensured; the two electric telescopic buckles are arranged on the outer sides of the two water pressure regulating sheets, the two ends of each electric telescopic buckle are fixedly connected with the water storage bottom cover and the fog curtain top cover respectively, meanwhile, a pair of electric hydraulic rods are arranged between each horizontal regulating sheet and the electric telescopic buckle, a pair of electromagnetic reversing valves for controlling the pair of electric hydraulic rods are connected with the control unit of the Internet of things device, the control unit of the Internet of things device can conveniently control the two pairs of electric hydraulic rods to synchronously act, and then the two water pressure regulating sheets can be utilized to change the areas of the two water storage grooves, so that the purposes of regulating water pressure and water flow can be achieved, and therefore, the purpose of accurately controlling dust can be achieved, and meanwhile, the water consumption of magnetized water can be effectively saved. Utilize flexible dryer to connect relative dryer go-between and the fog curtain generating device with adjustable set up, simultaneously, utilize a plurality of electronic hydraulic support connection dryer go-between and fog curtain generating device with adjustable in flexible dryer outside, can be convenient for adjust the distance between dryer go-between and the fog curtain generating device with adjustable through electronic hydraulic support, and then reach the purpose of adjusting the displacement of fog curtain generating device with adjustable in the tunneling direction, like this, the emergence position of fog curtain can be controlled to can carry out fixed point cooling dust fall operation in a flexible way. Through being provided with the position appearance sensor that is used for gathering the heading machine aircraft nose position appearance signal on the heading machine main part, can be convenient for thing networking device control unit obtain the relative position of heading machine aircraft nose for the heading machine main part in real time, like this, be favorable to thing networking device control unit to control a plurality of electric hydraulic support's flexible volume according to the position of dust source, and then make the fog curtain shower nozzle be located the region of dust source certain range all the time, reach the purpose of subsidence to accurate tracking of dust, of course, also can control the flexible position of two pairs of electric hydraulic stems according to the position of dust source, and then carry out adaptive regulation to the spraying volume of fog curtain shower nozzle. A plurality of magnetized water pipe through holes I are formed in the ring surface of the air duct connecting ring, a plurality of magnetized water pipe through holes II are formed in the water storage bottom cover of the adjustable fog curtain generating device, a plurality of magnetized water pipe water pipes connected with the magnetized water tank sequentially penetrate through the magnetized water pipe through holes I and then are inserted into the magnetized water pipe through holes II in a one-to-one correspondence mode, the magnetized water tank and the water storage groove can be effectively communicated, and then water supply operation can be conducted on the atomizing nozzle. The single rail is used for hoisting the air pressing fan above the heading machine in an inclined manner, and the dust source tracking type air pressing fog curtain self-moving mechanism above the heading machine is connected with an air pressing port of the air pressing fan through the transition air duct, so that a fog curtain can be generated above the heading machine, and the fog curtain can be sprayed to a certain range outside, and therefore the cooling and dust reducing effects of a heading face can be greatly improved. The left dust collection arm and the right dust collection arm which are connected with the main dust collection box body are respectively arranged on the left side and the right side of the tunneling machine main body, the front ends of the left dust collection arm and the right dust collection arm are respectively provided with a left dust collection opening and a right dust collection opening, and meanwhile, the left part of the main dust collection box body is connected with the wet dust collector through a dust collection pipeline, so that dust generated by a tunneling working face can be absorbed by the left dust collection arm, the left dust collection opening, the right dust collection arm and the right dust collection opening under the action of negative pressure of the wet dust collector, and the dust quantity generated by the tunneling working face is effectively reduced. The lower part of the main dust suction box body is provided with the lower dust suction opening at the rear end of the main body of the heading machine, so that dust generated when the main body of the heading machine falls off can be absorbed, and the dust amount generated in the heading working process is further reduced. Therefore, dust generated on a tunneling working face and dust generated during coal falling transportation can be comprehensively absorbed through the arrangement of the left dust collection opening, the right dust collection opening and the lower dust collection opening. The pressure deformation detection device, the identification camera device and the signal emitter of the Internet of things are arranged in the deformation identification control mechanism of the Internet of things, and the pressure deformation detection device and the identification camera device are respectively arranged at two ends of the connecting rod body, so that deformation signals of the coal wall can be collected when the pressure deformation detection device is inserted into the wall body of the coal wall, the identification camera device can be used for collecting specific action image data of workers conveniently, and specific action instructions of the workers can be identified through the action image data; the front side and the rear side of the heading machine are respectively provided with the deformation identification control mechanism of the Internet of things, so that the coal wall deformation condition can be conveniently collected and the action instructions of workers can be conveniently identified at the front side and the rear side of the heading machine. Through the setting of thing networking signal transmitter, can be convenient for send the specific action instruction of workman who gathers coal wall deformation signal and discernment to thing networking device control unit, like this, thing networking device control unit can control the switching action of flow control valve according to the specific action instruction of workman, and then reaches the purpose that produces and stop of control fog curtain automatically through the action of workman. In addition, the control unit of the device of the internet of things can judge whether to continue tunneling work according to the deformation condition of the coal wall, and control the tunneling machine head to stop working when the deformation of the coal wall exceeds a set value, so as to stop tunneling work, and simultaneously, can control two pairs of electric hydraulic rods to synchronously drive two hydraulic adjusting sheets to move a certain distance in a direction away from each other, so as to effectively increase the amount of sprayed liquid drops, and can control piston rods in a plurality of electric hydraulic supports to synchronously extend out for a set distance, so that the spraying range is effectively increased, and the aim of improving the safety coefficient in the working process is fulfilled. Furthermore, the dangerous warning lamp can be controlled to flash and warn light in time when the deformation of the coal wall exceeds a set value, so that the aim of warning in time is achieved.

The system carries out fixed-point fog curtain dust control operation on different dust producing positions of a tunneling machine during tunneling work through the data collected by the plurality of electric hydraulic supports arranged in the dust source tracking type air pressing fog curtain self-moving mechanism and the identified action instructions combined with the deformation identification control mechanism of the Internet of things, and meanwhile, the liquid drop quantity of the generated fog curtain can be conveniently regulated through the adjustable fog curtain generating device, so that the consumption of magnetized water is reduced to the greatest extent, and the aim of saving energy is fulfilled. In addition, through the setting of encircling variable diameter dust absorption mechanism, not only can make the dust absorption mouth fully cover and produce the dirt region, can be under the progress that does not hinder the tunneling work moreover, effectively get rid of the dust that produces dirt within range, be favorable to utilizing the space under the ore deposit to realize the dust fall operation of optimization to the maximum extent. The system can cover a dust source to the greatest extent, efficiently treat dust from the source in a fixed-point and quantitative mode, and process the dust and generate clean air in cooperation with the wet dust collector, so that the dust treatment effect is improved, and meanwhile, the environment-friendly effect is also improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a deformation identification control mechanism of the Internet of things in the invention;

FIG. 3 is an assembly schematic diagram of the deformation identification control mechanism of the Internet of things in the invention;

FIG. 4 is a schematic view of the overall structure of the heading machine of the present invention;

FIG. 5 is a schematic view of the overall structure of the dust source tracking type compressed air curtain self-moving mechanism of the invention;

FIG. 6 is an exploded view of the dust source tracking type compressed air curtain self-moving mechanism of the present invention;

FIG. 7 is an exploded view of the adjustable curtain generator of the present invention;

FIG. 8 is a schematic cross-sectional view taken in the direction C-C of FIG. 5;

FIG. 9 is a schematic diagram showing the control of the spray amount by the adjustable curtain generator according to the present invention;

FIG. 10 is a schematic view of the overall structure of the encircling variable diameter suction mechanism of the present invention;

FIG. 11 is a schematic view of the structure of the portion A in FIG. 10;

FIG. 12 is a schematic view of a vacuum cleaner support frame according to the present invention;

FIG. 13 is a schematic view showing a contracted state of the wrap-around variable diameter suction mechanism of the present invention;

FIG. 14 is a schematic view showing an extended state of the wrap-around variable diameter suction mechanism according to the present invention;

FIG. 15 is a schematic view of the structure of the variable diameter telescoping frame of the present invention;

FIG. 16 is a schematic view of the structure of portion B in FIG. 15;

FIG. 17 is a schematic view of the structure of a first backboard according to the invention;

FIG. 18 is a schematic view of a second backboard according to the invention;

fig. 19 is a schematic structural view of a third backboard according to the invention.

In the figure: 1. the wet dust collector, 2, a wind-pressing fan, 21, a transition wind drum, 3, an Internet of things deformation identification control mechanism, 31, an identification camera device, 32, a pressure deformation detection device, 33, an Internet of things signal transmitter, 34, a connecting rod body, 4, a heading machine, 41, a hazard warning lamp, 42, an Internet of things device control unit, 43, a fog curtain spray head, 44, an onboard magnetized water storage tank, 45, a heading machine main body, 5, a dust source tracking type wind-pressing fog curtain self-moving mechanism, 51, a wind drum connecting ring, 511, magnetized water pipe through holes I, 52, an adjustable fog curtain generating device, 521, a water storage bottom cover, 5211, magnetized water pipe through holes II, 5212, a water storage groove, 5213, a magnetized water delivery pipe, 5214, a strip-shaped baffle part, 522, a sealing gasket, 5221, an annular sealing ring, 5222, an arc-shaped sealing strip, 5223, a sealing connecting strip, 523, a water pressure regulating piece, 524 and an electric telescopic buckle, 525, a fog screen top cover, 526, an atomizing spray head, 527, an electric hydraulic rod, 528, a sliding convex tooth, 529, a sliding groove, 53, an electric hydraulic support, 54, a telescopic air cylinder, 55, a universal ball head, 6, a surrounding type variable diameter dust suction mechanism, 61, a main dust suction box body, 611, a lower dust suction opening, 62, a left dust suction box, 621, a left dust suction opening, 63, a variable diameter telescopic frame, 631, an upper top plate, 632, a lower bottom plate, 633, a side support plate, 634, a first back plate, 6341, a strip groove I, 635, a second back plate, 6351, a strip positioning block I, 6352, a strip groove II, 636, a third back plate 6361, a strip positioning block II, 637, a folding hinge, 638, a toggle plate, 6381, a rotating shaft 639, a ball bearing, 6310, a driver, 64, a dust suction opening support frame 641, an upper chute, 642, a lower chute, 65, a pull ring, 66, a left dust suction arm, 67, a right dust suction arm, 68. the right side dust suction box 681, the right dust suction opening 69, the dust suction pipeline 7, the conveying belt 8, the magnetized water tank 9 and the wall body.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 19, the invention provides a tracking type precise dust removal and safety detection control system for a tunneling working face, which comprises a tunneling machine 4, a conveying belt 7, a compressed air fan 2, an internet of things deformation identification control mechanism 3, a dust source tracking type compressed air fog curtain self-moving mechanism 5, a magnetized water tank 8, a surrounding type variable diameter dust collection mechanism 6 and a wet dust collector 1;

the development machine 4 mainly comprises a development machine main body 45, a hazard warning lamp 41, an onboard magnetized water storage tank 44, a fog curtain spray head 43 and an Internet of things device control unit 42; the heading machine main body 45 is connected with a pose sensor for acquiring the pose signal of the heading machine head in real time; the hazard warning lamp 41 is arranged at the top of the heading machine main body 45; the onboard magnetized water storage tank 44 is arranged at a position behind the top of the heading machine main body 45; the fog curtain spray head 43 is arranged at the rear end of the top of the heading machine main body 45, and the water inlet end of the fog curtain spray head is connected with the water outlet end of a water supply pump arranged in the airborne magnetized water storage tank 44 through a water conveying pipeline; the control unit 42 of the Internet of things device is arranged on one side of the tunneling machine body 45 and is respectively connected with the tunneling machine body 45, the pose sensor, the hazard warning lamp 41 and the water supply pump;

The conveying belt 7 is arranged at the lower side of the coal dropping port of the heading machine 4;

the air pressure fan 2 is hoisted above the heading machine 4 by a single rail, and a transition air duct 21 extending along the heading direction is connected to an air pressure port of the air pressure fan;

the number of the deformation identification control mechanisms 3 of the Internet of things is two, the deformation identification control mechanisms 3 of the Internet of things are respectively arranged on the front side and the rear side of the heading machine 4, the deformation identification control mechanisms 3 of the Internet of things are composed of a connecting rod body 34, a pressure deformation detection device 32, an identification camera device 31 and an Internet of things signal transmitter 33, the pressure deformation detection device 32 is fixedly arranged at one end of the connecting rod body 34 and is inserted into a wall body 9 of a coal wall at one side, and the deformation identification control mechanisms are used for acquiring deformation signals of the coal wall and transmitting the acquired deformation signals to the control unit 42 of the Internet of things through the signal transmitter 33 of the Internet of things in real time; the identifying camera device 31 is fixedly installed at the other end of the connecting rod 34, and is used for collecting specific action image data of a worker, identifying a specific action instruction of the worker through the action image data, and sending the identified action instruction to the control unit 42 of the internet of things device through the signal transmitter 33 of the internet of things device; the internet of things signal transmitter 33 is installed at the top of the identification camera device 31 and connected with the internet of things device control unit 42, and is used for transmitting data output by the internet of things device control unit 42 to the outside;

The dust source tracking type compressed air curtain self-moving mechanism 5 is positioned above the front end of the heading machine 4 and consists of an air duct connecting ring 51, an adjustable curtain generating device 52, a telescopic air duct 54 and an electro-hydraulic support 53; the air duct connecting ring 51 is in a circular ring structure, is fixedly connected with the end part of the transition air duct 21, is communicated with a compressed air port of the compressed air fan 2 through the transition air duct 21, and is provided with a plurality of magnetized water pipe through holes I511 along the circumferential direction on the annular surface of the air duct connecting ring 51; the adjustable fog curtain generating device 52 and the air duct connecting ring 51 are arranged opposite to each other, and are composed of a water storage bottom cover 521, a sealing gasket 522, a fog curtain top cover 525, an atomization nozzle 526, a water pressure adjusting piece 523, an electric telescopic buckle 524 and an electric hydraulic rod 527, wherein the water storage bottom cover 521 is of a circular ring structure, two water storage grooves 5212 extending in a circumferential direction are symmetrically formed in the middle of an annular surface on the front side of the water storage bottom cover 521, and two strip-shaped blocking parts 5214 are formed between the end parts of the two water storage grooves 5212; the water storage bottom cover 521 is provided with a plurality of magnetized water pipe through holes II 5211 at the part where each water storage groove 5212 is located, and the magnetized water pipe through holes II 5211 are arranged in one-to-one correspondence with the magnetized water pipe through holes I511; the sealing gasket 522 is composed of an annular sealing ring 5221 located in the central area, two arc sealing strips 5222 symmetrically arranged outside the annular sealing ring 5221, and two sealing connecting strips 5223 respectively connecting opposite ends of the annular sealing ring 5221 and the centers of the two arc sealing strips 5222; the size of the annular sealing ring 5221 is matched with the size of the water storage bottom cover 521 at the inner side parts of the two water storage grooves 5212; the size of the two arc-shaped sealing strips 5222 is matched with the size of the water storage bottom cover 521 at the outer side parts of the two water storage grooves 5212, and sliding grooves 529 are formed in the two end parts of each arc-shaped sealing strip 5222; the two sealing connection strips 5223 are sized to fit the two strip-shaped barrier portions 5214; the back side of the sealing gasket 522 is attached to the front side of the water storage bottom cover 521, the back side of the annular sealing ring 5221 is attached to the inner side of the water storage bottom cover 521 in the two water storage grooves 5212, the two sealing connection strips 5223 are correspondingly attached to the two strip-shaped blocking parts 5214, and the two arc-shaped sealing strips 5222 are attached to the outer side of the water storage bottom cover 521 in the two water storage grooves 5212; the annular surface of the fog curtain top cover 525 is provided with a plurality of fog spray nozzle mounting holes uniformly along the circumferential direction at the part corresponding to the two water storage grooves 5212, and a plurality of fog spray nozzles 526 are respectively arranged in the fog spray nozzle mounting holes in a one-to-one corresponding manner; the rear side of the fog screen top cover 525 is connected to the front side of the sealing pad 522 in a fitting manner; the two water pressure adjusting pieces 523 are in an arc structure, the two water pressure adjusting pieces 523 are arranged at the part between the water storage bottom cover 521 and the fog curtain top cover 525 opposite to each other, are positioned at the outer side of the annular sealing ring 5221, and are positioned in two arc spaces between the two arc sealing strips 5222; each water pressure regulating piece 523 is in sliding sealing fit with the water storage bottom cover 521 and the fog curtain top cover 525, sliding convex teeth 528 matched with the sliding grooves 529 are arranged at two ends of each water pressure regulating piece 523, and meanwhile, the two sliding convex teeth 528 at two ends of each water pressure regulating piece 523 are inserted into the two sliding grooves 529 at the same side ends of the two arc-shaped sealing strips 5222 in a sliding manner; the two electric telescopic buckles 524 are of U-shaped structures, the two electric telescopic buckles 524 are arranged on the outer sides of the two water pressure regulating pieces 523 opposite to each other, and two ends of the U-shaped opening of each electric telescopic buckle 524 are fixedly connected with the water storage bottom cover 521 and the fog curtain top cover 525 respectively and are used for tightly pressing and connecting the water storage bottom cover 521, the sealing gasket 522 and the fog curtain top cover 525 into an integrated structure; two pairs of electric hydraulic rods 527 are arranged in a space between the two water pressure regulating pieces 523 and the two electric telescopic buckles 524 in a mutually opposite manner, one end of each pair of electric hydraulic rods 527 extends into a U-shaped groove of the corresponding electric telescopic buckle 524 and is fixedly connected with the electric telescopic buckle 524, and the other end of each pair of electric hydraulic rods 527 is fixedly connected with the outer edge surface of the bow peak of the corresponding water pressure regulating piece 523; the telescopic air duct 54 is coaxially arranged between the air duct connecting ring 51 and the adjustable fog curtain generating device 52, and two ends of the telescopic air duct 54 are respectively connected with the front side surface of the air duct connecting ring 51 and the rear side surface of the water storage bottom cover 521; the plurality of electrohydraulic supports 53 are positioned between the air duct connecting ring 51 and the adjustable fog curtain generating device 52, and are evenly distributed on the outer side of the telescopic air duct 54 in the circumferential direction; the rear ends of the electro-hydraulic brackets 53 are vertically and fixedly connected with the front side surface of the air duct connecting ring 51, and the front ends of the electro-hydraulic brackets are connected with the rear side surface of the water storage bottom cover 521 through universal ball heads 55; the first electromagnetic directional valves correspondingly connected with the electro-hydraulic supports 53 and the second electromagnetic directional valves correspondingly connected with the two pairs of electro-hydraulic rods 527 are connected with the control unit 42 of the internet of things device;

The water magnetizing tank 8 is installed at one side of the exterior of the tunneling machine main body 45, the water outlet of the water magnetizing tank 8 is fixedly connected with the water inlet ends of the plurality of magnetized water delivery pipes 5213, the water inlet ends of the plurality of magnetized water delivery pipes 5213 are correspondingly connected with a plurality of flow control valves, and the water outlet ends of the plurality of magnetized water delivery pipes 5213 pass through the plurality of magnetized water pipe through holes I511, are inserted into the plurality of magnetized water pipe through holes II 5211 in a one-to-one manner, and are communicated with the water storage groove 5212; the plurality of flow control valves are all connected with the internet of things device control unit 42;

the encircling variable diameter dust collection mechanism 6 consists of a main dust collection box body 61, a left dust collection arm 66, a right dust collection arm 67, a left dust collection box 62 and a right dust collection box 68; the main dust suction box 61 is positioned at the lower side of the rear end of the tunneling machine body 45, the central area of the rear side plate is fixedly connected with a dust suction pipeline 69 communicated with the inner cavity of the main dust suction box, the lower end of the main dust suction box is provided with a lower dust suction port 611, and the lower dust suction port 611 is obliquely arranged obliquely upwards from left to right and is used for absorbing dust generated when the tunneling machine body 45 drops coal to the conveying belt 7; the left dust collection arm 66 and the right dust collection arm 67 are arranged side by side left and right on the front side of the main dust collection box 61 and on the front and rear sides of the tunneling machine main body 45, and the rear ends of the two dust collection arms are fixedly connected to the front side plate of the main dust collection box 61 and communicated with the inner cavity of the main dust collection box 61; the rear end of the left dust collection box 62 is fixedly connected to the front end of the left dust collection arm and communicated with each other, and the front end of the left dust collection box 62 is provided with a left dust collection port 621; the rear end of the right side dust suction box 68 is fixedly connected with the front end of the right dust suction arm 67 and communicated with each other, and the front end of the right side dust suction box 68 is provided with a right dust suction port 681; the left dust suction port 621 and the right dust suction port 681 are used for sucking dust generated by a tunneling working surface;

The wet dust collector 1 is positioned at the rear side of the heading machine 4 and at the upper side of the conveying belt 7, and a dust inlet of the wet dust collector is fixedly connected with the end part of a dust collection pipeline 69 on the encircling variable-diameter dust collection mechanism 6.

In order to realize convenient adjustment of the size of the dust collection opening, the left side dust collection box 62 and the right side dust collection box 68 are composed of a dust collection opening support frame 64, a variable-diameter telescopic frame 63, a poking plate 638 and a pull ring 65;

the front end of the dust collection port support frame 64 is of an open structure, and the side surface of the dust collection port support frame, which is far away from the tunneling machine main body 45, is also of an open structure; an upper chute 641 extending in the left-right direction is formed in the top plate of the dust collection port support frame 64, the upper chute 641 is a straight chute with a strip-shaped section, the opening end of the upper chute 641 is positioned on the end edge of the top plate of the dust collection port support frame 64, which is far away from the heading machine 4, a lower chute 642 extending in the left-right direction is formed in the bottom plate of the dust collection port support frame 64, the lower chute 642 is an L-shaped chute with an L-shaped section, and the opening end of the lower chute 642 is positioned on the end edge of the bottom plate of the dust collection port support frame 64, which is far away from the heading machine 4;

the front end of the variable-diameter expansion bracket 63 is of an open structure, and is composed of a side supporting plate 633, a lower bottom plate 632, an upper top plate 631, a combined back plate, a folding hinge 637, a toggle plate 638, a ball bearing 639 and a driver 6310; the side support plate 633 is disposed at a side far away from the heading machine 4, one end of the lower bottom plate 632 far away from the heading machine 4 is fixedly connected to the bottom edge of the side surface of the side support plate 633, the cross section of the lower bottom plate 632 is L-shaped, the vertical section of the lower bottom plate 632 is located at the rear end of the horizontal section of the lower bottom plate 632, and the size of the cross section of the lower bottom plate 632 is adapted to the size of the lower chute 642; the upper top plate 631 is arranged above the lower bottom plate 632 in parallel, and one end far away from the heading machine 4 is fixedly connected to the top edge of the side surface of the side supporting plate 633, and the cross section of the upper top plate is in a shape of a line, and the size of the upper top plate is smaller than that of the upper chute 641; the size of the combined back plate is matched with the size of a part between the rear end of the upper top plate 631 and the rear end of the lower bottom plate 632, the combined back plate is composed of a first back plate 634, a plurality of second back plates 635 and a third back plate 636 which are adjacent in sequence, the top edge of the first back plate 634 is hinged with the rear end edge of the upper top plate 631 through a folding hinge 637, the bottom edge of the second back plate 635 is in abutting fit with the front side of the bending part of the lower bottom plate 632, the top edge of each second back plate 635 is hinged with the rear end edge of the upper top plate 631 through another folding hinge 637, the bottom edge of each third back plate 636 is in abutting fit with the front side of the bending part of the lower bottom plate 632, and the top edge of each third back plate 636 is hinged with the rear end edge of the upper top plate 631 through another folding hinge 637; the toggle plate 638 is disposed at the rear side of the combined back plate and is located near the upper edge of the combined back plate, and is disposed at a distance from the rear edge of the upper side plate 631; the stirring plate 638 is fixedly connected with a rotating shaft 6381 at one side close to the side supporting plate 633, the rotating shaft 6381 is rotatably inserted into a mounting hole reserved on the side supporting plate 633 through the ball bearing 639, the driver 6310 is mounted outside one side of the side supporting plate 633, and the output end of the driver 6310 is fixedly connected with the end part of the rotating shaft 6381 and is used for driving the stirring plate 638 to perform rotating motion through the rotating shaft 6381, so that the combined back plate is folded towards the direction close to the upper top plate 631 by rotating towards the combined back plate or is in a vertical state under the action of dead weight by rotating towards the direction far away from the combined back plate;

When the combined back plate is in a fully folded state, the combined back plate is attached to the lower side surface 631 of the upper top plate 631 and is slidably inserted into the upper chute 641 of the dust suction port support frame 64, meanwhile, the lower bottom plate 632 and the bending part thereof are slidably inserted into the lower chute 642 of the dust suction port support frame 64, and the variable-diameter expansion bracket 63 is slidably matched with the dust suction port support frame 64 through the combined back plate and the upper top plate 631 which are slidably inserted into the upper chute 641 and the lower bottom plate 632 which is slidably inserted into the lower chute 642;

the pull ring 65 is fixedly connected to the outside of one side of the side support plate 633, and is used for pulling the variable-diameter expansion bracket 63.

In order to enable the first backboard, the second backboard and the third backboard to act in a linkage manner, when the first backboard is shifted by the shifting block, the second backboard and the third backboard can be synchronously driven to fold, so that the variable-diameter telescopic frame can conveniently slide in the dust collection port support frame, the first backboard 634 is provided with a first bar-shaped groove 6341 on the front side surface close to the side of the second backboard 635, the side of the second backboard 635 close to the first backboard 634 is fixedly connected with a first bar-shaped positioning block 6351, the first bar-shaped positioning block 6351 and the first bar-shaped groove 6341 are in mutual positioning fit, the front side surface of the second backboard 635 close to the side of the third backboard 636 is provided with a second bar-shaped groove 6352, the side of the third backboard 636 is fixedly connected with a second bar-shaped positioning block 6361 close to the side of the second backboard 635, and the second bar-shaped groove 6352 are in mutual positioning fit.

In order to improve the atomization effect and ensure that water can be uniformly sprayed on a dust source of a tunneling working face after being atomized, so that the rapid sedimentation operation of dust generated in the tunneling process of the tunneling machine can be realized, the aperture of the atomization nozzle 526 is 1-5 mm.

In order to improve the dust collection effect, the left dust collection hole 621 and the right dust collection hole 681 are gradually close to the heading machine body 45 from bottom to top.

For facilitating centralized control, the driver 6310 is connected to the internet of things device control unit 42.

In order to be convenient for adjust the position and the spraying volume of fog curtain shower nozzle according to the dust yield, still include dust concentration monitor, dust concentration monitor is connected with thing networking device control unit 42, and it installs on entry driving machine main part 45, and is close to the position of entry driving machine aircraft nose for gather the dust concentration signal of entry driving working face. Like this, thing networking device control unit can control two pairs of electricity to the flexible volume of hydraulic stem according to the concentration of dust yield, and then can utilize two water pressure regulating tabs to change the area of two water storage recesses to can reach the purpose of adjusting atomized liquid water supply water pressure and flow, like this, just can realize comparatively accurate control to adjustable fog curtain generating device's fog curtain droplet volume according to the dust yield, can realize accurate dust control's purpose.

Claims

1. The system comprises a heading machine (4), a conveying belt (7) and a compressed air fan (2), and is characterized by further comprising an Internet of things deformation identification control mechanism (3), a dust source tracking type compressed air mist curtain self-moving mechanism (5), a magnetizing water tank (8), a surrounding type variable-diameter dust collection mechanism (6) and a wet dust collector (1);

the heading machine (4) mainly comprises a heading machine main body (45), a hazard warning lamp (41), an onboard magnetized water storage tank (44), a fog curtain spray head (43) and an Internet of things device control unit (42); the heading machine main body (45) is connected with a pose sensor for acquiring the pose signal of the heading machine head in real time; the hazard warning lamp (41) is arranged at the top of the heading machine main body (45); the machine-mounted magnetized water storage tank (44) is arranged at a position of the rear part of the top of the heading machine main body (45); the fog curtain spray head (43) is arranged at the rear end of the top of the tunneling machine main body (45), and the water inlet end of the fog curtain spray head is connected with the water outlet end of a water supply pump arranged in the airborne magnetized water storage tank (44) through a water conveying pipeline; the control unit (42) of the Internet of things device is arranged on one side of the tunneling machine main body (45) and is respectively connected with the tunneling machine main body (45), the pose sensor, the hazard warning lamp (41) and the water supply pump;

The conveying belt (7) is arranged at the lower side of the coal dropping port of the heading machine (4);

the air pressure fan (2) is lifted above the tunneling machine (4) by a monorail, and a transition air duct (21) extending along the tunneling direction is connected to the air pressure port of the air pressure fan;

the number of the deformation identification control mechanisms (3) of the Internet of things is two, the two deformation identification control mechanisms are respectively arranged on the front side and the rear side of the heading machine (4), the deformation identification control mechanisms (3) of the Internet of things are composed of a connecting rod body (34), a pressure deformation detection device (32), an identification camera device (31) and an Internet of things signal transmitter (33), the pressure deformation detection device (32) is fixedly arranged at one end of the connecting rod body (34) and is inserted into a wall body (9) of one side coal wall, and the deformation identification control mechanisms are used for collecting deformation signals of the coal wall and sending the collected deformation signals to an Internet of things device control unit (42) in real time through the Internet of things signal transmitter (33); the identification camera device (31) is fixedly arranged at the other end of the connecting rod body (34) and is used for collecting specific action image data of workers, identifying specific action instructions of the workers through the action image data and sending the identified action instructions to the control unit (42) of the Internet of things device through the signal transmitter (33) of the Internet of things; the internet of things signal transmitter (33) is arranged at the top of the identification camera device (31) and connected with the internet of things device control unit (42) and is used for transmitting data output by the internet of things device control unit (42) to the outside;

The dust source tracking type compressed air fog curtain self-moving mechanism (5) is positioned above the front end of the heading machine (4) and consists of an air duct connecting ring (51), an adjustable fog curtain generating device (52), a telescopic air duct (54) and an electric hydraulic support (53); the air duct connecting ring (51) is of a circular ring structure, is fixedly connected with the end part of the transition air duct (21), is communicated with a compressed air port of the compressed air fan (2) through the transition air duct (21), and is provided with a plurality of magnetized water pipe through holes I (511) along the circumferential direction on the annular surface of the air duct connecting ring (51); the adjustable fog curtain generating device (52) and the air duct connecting ring (51) are oppositely arranged, and the adjustable fog curtain generating device consists of a water storage bottom cover (521), a sealing gasket (522), a fog curtain top cover (525), an atomization nozzle (526), a water pressure adjusting piece (523), an electric telescopic buckle (524) and an electric hydraulic rod (527), wherein the water storage bottom cover (521) is of a circular ring structure, two water storage grooves (5212) extending in a circular direction are symmetrically formed in the middle of an annular surface at the front side of the water storage bottom cover, and two strip-shaped blocking parts (5214) are formed between the end parts of the two water storage grooves (5212); the water storage bottom cover (521) is provided with a plurality of magnetized water pipe through holes II (5211) at the part where each water storage groove (5212) is positioned; the sealing gasket (522) consists of an annular sealing ring (5221) positioned in a central area, two arc-shaped sealing strips (5222) symmetrically arranged outside the annular sealing ring (5221), and two sealing connecting strips (5223) respectively connecting opposite ends of the annular sealing ring (5221) and the centers of the two arc-shaped sealing strips (5222); the size of the annular sealing ring (5221) is matched with the size of the water storage bottom cover (521) at the inner side parts of the two water storage grooves (5212); the size of the two arc-shaped sealing strips (5222) is matched with the size of the water storage bottom cover (521) at the outer side parts of the two water storage grooves (5212), and sliding grooves (529) are formed in the two end parts of each arc-shaped sealing strip (5222); the size of the two sealing connecting strips (5223) is matched with the size of the two strip-shaped blocking parts (5214); the back side of the sealing gasket (522) is connected to the front side of the water storage bottom cover (521) in a bonding mode, the back side of the annular sealing ring (5221) is bonded to the inner side parts of the water storage bottom cover (521) in the two water storage grooves (5212), the two sealing connecting strips (5223) are correspondingly bonded to the two strip-shaped blocking parts (5214), and the two arc-shaped sealing strips (5222) are bonded to the outer side parts of the water storage bottom cover (521) in the two water storage grooves (5212); the annular surface of the fog curtain top cover (525) is provided with a plurality of atomizing nozzle mounting holes uniformly along the circumferential direction at the parts corresponding to the two water storage grooves (5212), and a plurality of atomizing nozzles (526) are respectively arranged in the atomizing nozzle mounting holes in a one-to-one correspondence manner; the rear side surface of the fog curtain top cover (525) is connected to the front side surface of the sealing gasket (522) in a fitting way; the two water pressure regulating pieces (523) are of arc structures, the two water pressure regulating pieces (523) are arranged at the part between the water storage bottom cover (521) and the fog curtain top cover (525) opposite to each other, are positioned at the outer side of the annular sealing ring (5221), and are positioned in two arc spaces between the two arc sealing strips (5222); each water pressure regulating piece (523) is in sliding sealing fit with the water storage bottom cover (521) and the fog curtain top cover (525), sliding convex teeth (528) matched with the sliding grooves (529) are arranged at two ends of each water pressure regulating piece (523), and meanwhile, the two sliding convex teeth (528) at two ends of each water pressure regulating piece (523) are inserted into the two sliding grooves (529) at the same side end of the two arc-shaped sealing strips (5222) in a sliding manner; the two electric telescopic buckles (524) are of U-shaped structures, the two electric telescopic buckles (524) are arranged on the outer sides of the two water pressure regulating pieces (523) opposite to each other, and two ends of a U-shaped opening of each electric telescopic buckle (524) are fixedly connected with the water storage bottom cover (521) and the fog curtain top cover (525) respectively and are used for tightly pressing and connecting the water storage bottom cover (521), the sealing gasket (522) and the fog curtain top cover (525) into an integrated structure; two pairs of electric hydraulic rods (527) are oppositely arranged in a space between two water pressure regulating pieces (523) and two electric telescopic buckles (524), one end of each pair of electric hydraulic rods (527) extends into a U-shaped groove of the corresponding electric telescopic buckle (524) and is fixedly connected with the electric telescopic buckle (524), and the other end of each pair of electric hydraulic rods (527) is fixedly connected with the outer edge surface of the bow peak of the corresponding water pressure regulating piece (523); the telescopic air duct (54) is coaxially arranged between the air duct connecting ring (51) and the adjustable fog curtain generating device (52), and two ends of the telescopic air duct are respectively connected with the front side surface of the air duct connecting ring (51) and the rear side surface of the water storage bottom cover (521); a plurality of electro-hydraulic supports (53) are positioned between the air duct connecting ring (51) and the adjustable fog curtain generating device (52), and are uniformly distributed on the outer side of the telescopic air duct (54) in the circumferential direction; the rear ends of the electro-hydraulic brackets (53) are vertically and fixedly connected with the front side surface of the air duct connecting ring (51), and the front ends of the electro-hydraulic brackets are connected with the rear side surface of the water storage bottom cover (521) through universal ball heads (55); a plurality of first electromagnetic directional valves correspondingly connected with a plurality of electro-hydraulic supports (53), and two second electromagnetic directional valves correspondingly connected with two pairs of electro-hydraulic rods (527) are connected with an Internet of things device control unit (42);

The water magnetizing tank (8) is arranged on one side of the outside of the tunneling machine main body (45), a water outlet of the water magnetizing tank (8) is fixedly connected with water inlet ends of a plurality of magnetized water delivery pipes (5213), the water inlet ends of the magnetized water delivery pipes (5213) are correspondingly connected with a plurality of flow control valves, and water outlet ends of the magnetized water delivery pipes (5213) penetrate through a plurality of magnetized water pipe through holes I (511) and are then inserted into a plurality of magnetized water pipe through holes II (5211) in a one-to-one and on-site manner and are communicated with the water storage grooves (5212); the plurality of flow control valves are connected with the control unit (42) of the Internet of things device;

the surrounding type variable-diameter dust collection mechanism (6) consists of a main dust collection box body (61), a left dust collection arm (66), a right dust collection arm (67), a left dust collection box (62) and a right dust collection box (68); the main dust collection box body (61) is positioned at the lower side of the rear end of the heading machine main body (45), a dust collection pipeline (69) communicated with the inner cavity of the main dust collection box body is fixedly connected to the central area of the rear side plate, a lower dust collection opening (611) is formed in the lower end of the main dust collection box body, and the lower dust collection opening (611) is obliquely formed in the upper inclined direction from the left to the right and is used for absorbing dust generated when the heading machine main body (45) falls coal to the conveying belt (7); the left dust collection arm (66) and the right dust collection arm (67) are arranged on the front side of the main dust collection box body (61) side by side left and right and are positioned on two sides of the tunneling machine main body (45), and the rear ends of the two dust collection arms are connected to the front side plate of the main dust collection box body (61) and are communicated with the inner cavity of the main dust collection box body (61); the rear end of the left dust collection box (62) is fixedly connected with the front end of the left dust collection arm (66) and communicated with each other, and the front end of the left dust collection box (62) is provided with a left dust collection opening (621); the rear end of the right side dust collection box (68) is fixedly connected with the front end of the right dust collection arm (67) and communicated with each other, and the front end of the right side dust collection box (68) is provided with a right dust collection opening (681); the left dust collection opening (621) and the right dust collection opening (681) are used for absorbing dust generated by a tunneling working face;

The wet dust collector (1) is positioned at the rear side of the heading machine (4) and at the upper side of the conveying belt (7), and a dust inlet of the wet dust collector is fixedly connected with the end part of a dust collection pipeline (69) on the encircling variable-diameter dust collection mechanism (6).

2. The tunneling working face tracking type precise dust removing and safety detecting control system according to claim 1, wherein the left side dust collecting box (62) and the right side dust collecting box (68) are composed of a dust collecting port supporting frame (64), a variable diameter telescopic frame (63), a poking plate (638) and a pull ring (65);

the front end of the dust collection port support frame (64) is of an open structure, and the side surface of the dust collection port support frame, which is far away from the tunneling machine main body (45), is of an open structure; an upper chute (641) extending in the left-right direction is formed in the top plate of the dust collection port support frame (64), the upper chute (641) is a straight chute with a strip-shaped section, the opening end of the upper chute (641) is positioned on the end edge of one side, far away from the heading machine (4), of the top plate of the dust collection port support frame (64), a lower chute (642) extending in the left-right direction is formed in the bottom plate of the dust collection port support frame (64), the lower chute (642) is an L-shaped chute with an L-shaped section, and the opening end of the lower chute (642) is positioned on the end edge of one side, far away from the heading machine (4), of the bottom plate of the dust collection port support frame (64);

The front end of the variable-diameter expansion bracket (63) is of an open structure and consists of a side supporting plate (633), a lower bottom plate (632), an upper top plate (631), a combined back plate, a folding hinge (637), a poking plate (638), a ball bearing (639) and a driver (6310); the side support plate (633) is arranged on one side far away from the heading machine (4), one end of the lower bottom plate (632) far away from the heading machine (4) is fixedly connected to the bottom edge of the side surface of the side support plate (633), the cross section of the lower bottom plate (632) is L-shaped, the vertical section of the lower bottom plate is positioned at the rear end of the horizontal section of the lower bottom plate, and the size of the cross section of the lower bottom plate (632) is matched with the size of the lower chute (642); the upper top plate (631) is arranged above the lower bottom plate (632) in parallel, one end far away from the heading machine (4) is fixedly connected to the top edge of the side surface of the side support plate (633), the cross section of the upper top plate is in a shape of a line, and the size of the upper top plate is smaller than that of the upper chute (641); the size of the combined back plate is matched with the size of a part between the rear end of the upper top plate (631) and the rear end of the lower bottom plate (632), the combined back plate consists of a first back plate (634), a plurality of second back plates (635) and a third back plate (636) which are sequentially adjacent, the top end edge of the first back plate (634) is hinged with the rear end edge of the upper top plate (631) through a folding hinge (637), the bottom end edge of the second back plate (635) is in abutting fit with the front side of a bending part of the lower bottom plate (632), the top end edge of the second back plate (635) is hinged with the rear end edge of the upper top plate (631) through another folding hinge (637), the bottom end edge of the third back plate (636) is in abutting fit with the front side of the bending part of the lower bottom plate (632); the poking plate (638) is arranged at the rear side of the combined backboard and is positioned close to the upper end edge of the combined backboard, and is arranged at a distance from the rear end edge of the upper side plate (631); the stirring plate (638) is fixedly connected with a rotating shaft (6381) at one side close to the side supporting plate (633), the rotating shaft (6381) is rotatably inserted into a mounting hole reserved on the side supporting plate (633) through a ball bearing (639), the driver (6310) is arranged outside one side of the side supporting plate (633), the output end of the driver is fixedly connected with the end part of the rotating shaft (6381) and is used for driving the stirring plate (638) to perform rotary motion through the rotating shaft (6381), and then the combined back plate is folded towards the direction close to the upper top plate (631) through rotating towards the direction close to the combined back plate or is in a vertical state under the action of dead weight through rotating towards the direction far from the combined back plate;

When the combined backboard is in a fully folded state, the combined backboard is attached to the lower side surface (631) of the upper top plate (631) and is slidably inserted into an upper chute (641) of the dust collection port support frame (64), meanwhile, a lower bottom plate (632) and a bending part thereof are slidably inserted into a lower chute (642) of the dust collection port support frame (64), and the variable-diameter telescopic frame (63) is slidably matched with the dust collection port support frame (64) through the combined backboard and the upper top plate (631) which are slidably inserted into the upper chute (641) and the lower bottom plate (632) which is slidably inserted into the lower chute (642);

the pull ring (65) is fixedly connected to the outer part of one side of the side supporting plate (633) and used for pulling the variable-diameter expansion bracket (63).

3. The heading face tracking type precise dust removal and safety detection control system according to claim 1 or 2, wherein the first backboard (634) is provided with a first strip-shaped positioning block (6341) on the front side close to the second backboard (635), the second backboard (635) is fixedly connected with a first strip-shaped positioning block (6351) on the side close to the first backboard (634), the first strip-shaped positioning block (6351) is matched with the first strip-shaped positioning block (6341) in a mutually positioning manner, the second backboard (635) is provided with a second strip-shaped positioning block (6352) on the front side close to the third backboard (636), the third backboard (636) is fixedly connected with a second strip-shaped positioning block (6361) on the side close to the second backboard (635), and the second strip-shaped positioning block (6361) is matched with the second strip-shaped positioning block (6352) in a mutually positioning manner.

4. A heading face tracking type precise dust removal and safety detection control system as claimed in claim 3, wherein the aperture of the atomizer (526) is 1-5 mm.

5. The heading face tracking type precise dust removal and safety detection control system according to claim 4, wherein the left dust collection port (621) and the right dust collection port (681) are gradually close to the heading machine main body (45) from bottom to top.

6. The heading face tracking type precise dust removal and safety detection control system as claimed in claim 5, wherein the driver (6310) is connected with an internet of things device control unit (42).

7. The tunneling face tracking type precise dust removing and safety detecting control system according to claim 6, further comprising a dust concentration monitor, wherein the dust concentration monitor is connected with the internet of things device control unit (42), is installed on the tunneling machine main body (45) and is close to a part of the tunneling machine head, and is used for collecting dust concentration signals of the tunneling face.