CN111721593B - Mine roadway fixed-point hydrogen sulfide collection device and method - Google Patents
Mine roadway fixed-point hydrogen sulfide collection device and method Download PDFInfo
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- CN111721593B CN111721593B CN202010586436.9A CN202010586436A CN111721593B CN 111721593 B CN111721593 B CN 111721593B CN 202010586436 A CN202010586436 A CN 202010586436A CN 111721593 B CN111721593 B CN 111721593B
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Abstract
The utility model provides a mine tunnel fixed point hydrogen sulfide collection system and method, the device includes the remote controller, the trailer, be equipped with motor and bearing alloy board on the trailer, be equipped with alloy steel round bar between bearing alloy board and the thickening alloy board front end, be equipped with the circular arc steel sheet between bearing alloy board and the thickening alloy board rear end, be equipped with the operation panel that has operating button on the circular arc steel sheet, thickening alloy board front end is equipped with the ranging module, the cover is equipped with the slip cone on the alloy steel round bar, the front end of slip cone is connected with a plurality of collection cavity that the fixed point gathered tunnel hydrogen sulfide, through remote controller control tunnel fixed point hydrogen sulfide collection system move ahead, it stops when arriving the tunnel head-on distance in the distance place ahead to set for, control slip cone moves ahead, until 2# and 3# concentric reducing pipe apart from tunnel central line and about help nodical A, B position department, 1# concentric reducing pipe apart from the high H position department directly over bottom plate mid point c in tunnel, gather the gas appearance in real time. The gas production device is simple in structure, automatic in control and safe in gas production.
Description
Technical Field
The invention relates to the technical field of mining machinery, in particular to a mine roadway fixed-point hydrogen sulfide collection device and method suitable for tunneling and stoping coal beds rich in hydrogen sulfide gas.
Background
At present, coal seams rich in hydrogen sulfide gas cause damage to the health of coal miners during tunneling and stoping, low-concentration hydrogen sulfide affects eyes, respiratory systems and central nerves, and high-concentration hydrogen sulfide can be fatal in a short time.
In coal mining, abnormal gushing and disaster accidents caused by abnormal enrichment of coal seam hydrogen sulfide gas continuously occur at home and abroad. There are multiple coal mines that have been H-cross 2 S gas suddenly gushes out, and accidents are caused. Since the density of the hydrogen sulfide gas is 1.537kg/m 3 Heavier than air, and tend to "float" in the lower middle region of the roadway. In order to treat the hydrogen sulfide gas more efficiently, the proportion and the key distribution area of the mixed gas sample are particularly important. However, in the search and concentration of the hydrogen sulfide mixed gas sample, manual collection is still adopted, so that the safety coefficient of collection operation is reduced.
Disclosure of Invention
The technical problem is as follows: the invention aims to overcome the defect of accidents caused by sudden burst of hydrogen sulfide gas and provides a mine roadway fixed-point hydrogen sulfide collecting device and method with simple structure, safe operation and good use effect.
The technical scheme is as follows: in order to achieve the purpose, the mine roadway fixed-point hydrogen sulfide collecting device comprises a remote controller, and further comprises a trailer which is composed of a thickened alloy plate, universal wheels and directional wheels, wherein the universal wheels and the directional wheels are symmetrically arranged below the front side and the rear side of the thickened alloy plate, the trailer is provided with a motor and a bearing alloy plate, an alloy steel round rod is arranged between the bearing alloy plate and the front end of the thickened alloy plate, an arc steel plate is arranged between the bearing alloy plate and the rear end of the thickened alloy plate, the arc steel plate is provided with an operating platform with an operating button, the front end of the thickened alloy plate is provided with an infrared ranging module in wireless connection with the remote controller, the alloy steel round rod is sleeved with a sliding cone, the front end of the sliding cone is connected with a plurality of collecting chambers for collecting roadway hydrogen sulfide at fixed points, one end of the motor is connected with a cable, the other end of the motor is connected with a traction rope, the traction rope bypasses a fixing ring at the tail end of the thickened alloy plate, and then bypasses a transmission pulley arranged at the top of the bearing alloy plate and is connected with the rear end of the sliding cone.
The infrared distance measuring module is arranged in the middle of the baffle and located at the front end of the alloy steel round rod.
The curvature radius of the alloy steel round rod is 1.2-1.4 times of that of the arc steel plate, and the length of the thickened alloy plate bottom plate is 5.2-5.5 times of the height of the bearing alloy plate.
The multi-collecting chamber be 3, 3 collection chambers are the triangle-shaped range, the concentric reducing pipe in the 3 collection chambers of triangle-shaped range divide into 1#, 2# and the concentric reducing pipe of 3# isometric on the coplanar, 1# reducing pipe is located between 2# and the concentric reducing pipe's of 3# below, 2# and the concentric reducing pipe length of 3# are 1.3-1.5 times of 1# reducing pipe.
The collection cavity include concentric reducing pipe, tuber pipe joint, laser module, check valve, hood, fastener and capsule, the tuber pipe joint establish the tail end at concentric reducing pipe, the laser module establish the front end at concentric reducing pipe, the check valve through the thread tightening on the outer wall of concentric reducing pipe front side, the front portion of check valve links to each other with the hood through the connecting pipe, the rear portion of check valve links to each other with the capsule through the connecting pipe, the fastener is fixed on the connecting pipe of capsule, the capsule constitute by the three different utricules of size that play cushioning effect.
The rear end face diameter of the sliding cone cylinder is 1.2-1.5 times of the front end face diameter of the sliding cone cylinder, 3 hollow holes penetrating through the front end face and the rear end face are formed in the sliding cone cylinder respectively, fixing sleeves are arranged in the 3 hollow holes respectively, sawtooth protruding rubber layers with the shearing strength of 16MPa are distributed in the fixing sleeves, a ball disc is embedded in the inner wall of a central hole of the rear end face of the sliding cone cylinder, the inner diameter of the ball disc is the same as that of the front end face of the sliding cone cylinder so as to guarantee the sliding stability of the cone cylinder, and rope sleeves connected with a traction rope are arranged on the left side and the right side of the rear end face of the cone cylinder.
The wire clamp is of a herringbone structure, a loop is arranged on the middle vertical rod, and the vertical rods on the two sides are in a hook shape.
A method for collecting fixed-point hydrogen sulfide in a mine roadway by using the device comprises the steps that along with coal roadway tunneling or working face extraction, an infrared distance measuring module of a baffle plate on the fixed-point hydrogen sulfide collecting device of the roadway is started through a remote controller, the fixed-point hydrogen sulfide collecting device of the roadway is enabled to move forwards, when the distance from the fixed-point hydrogen sulfide collecting device of the roadway to the head of the roadway in front is 8-12m, the movement forwards is stopped, a sliding cone is controlled to move forwards until the concentric reducer 2# and the concentric reducer 3# are located at positions A and B, which are the intersection points of the central line of the roadway and the left and right sides, and the concentric reducer 1# is located at a position H, which is the height H, which is right above the midpoint c of a bottom plate of the roadway, so as to collect a gas sample in real time; the method comprises the following specific steps: (1) wire preparation
In a switch off state, connecting a cable to an explosion-proof switch of an underground power supply, connecting air pipe joints of a plurality of collecting cavities into an underground existing air compression system of a mine, fixing a capsule by a wire clamp, connecting a traction hook with a winch cable in the mine, and distributing and fixing concentric reducing pipes in a fixed sleeve according to a fixed gas production position direction, so that the air pipe joints extend out of the tail part of the fixed sleeve;
(2) distance control
A distance measuring button of a remote controller is pressed, and the roadway fixed-point hydrogen sulfide acquisition device is driven by a winch cable to move forward at a set forward speed V = +0.5 m/s; pressing a voice button of a remote controller in advance, when an infrared ranging module arranged on a baffle plate measures that the distance from the head of a roadway in front is 10m, pressing a 'braking' button after the distance is prompted by voice, stopping the operation of universal wheels and directional wheels, and stopping the forward movement of a trailer;
(3) zoom line control
The sliding cone cylinder is controlled by paying off of a traction rope of a motor to slide forwards along the alloy steel round rod through a control button of a remote controller or an operation button on an operation table, a plurality of acquisition chambers arranged on the sliding cone cylinder are driven to move forwards in an appointed direction until the sliding cone cylinder is contacted with a baffle, infrared light guidance is provided for an operator through a laser module, and the concentric reducer is positioned at an appointed position of a roadway;
if the sliding cone cylinder is close to the side end face of the baffle and is not contacted, pressing a rope releasing plus button of the remote controller, pulling the rope by the motor in the reverse direction, adjusting the sliding cone cylinder to slide down along the alloy steel round rod from top to bottom until the sliding cone cylinder is contacted with the baffle (3);
(4) forced air sampling
Opening a switch of a mine compressed air system, opening a one-way valve, enabling an air sample to pass through a blast cap and enter a capsule formed by three capsule bodies with different sizes and playing a buffering role, ensuring that the capsule cannot break under strong pressure, and continuously compressing for 5min when the compressed air is 0.7MPa, thereby realizing fixed-point air sample collection of a roadway;
(5) retreating and recycling gas sample
When three capsule bodies of the capsule are expanded simultaneously and sampling is finished, closing the one-way valve, pressing a 'variable speed-' button of a remote controller, setting the forward speed to be V = -0.5m/s, controlling the motor to retreat in the opposite direction until a roadway supported safe area, pressing a 'brake' button, taking down the connecting wire clamp together with the capsule, and binding the inlet of the capsule by means of the elasticity of the wire clamp; meanwhile, a 'line shrinkage-' button of the remote controller is pressed, the sliding cone cylinder retreats and retracts along the alloy steel round rod to move upwards until the sliding cone cylinder is close to the transmission pulley at the intersection point of the bearing alloy plate and the arc steel plate.
When the 1# concentric reducing pipe slides along the alloy steel round rod and the front end face of the sliding cone cylinder is in contact with the baffle, the height difference between the connecting part of the 1# concentric reducing pipe and the blast cap and the baffle is 0.45m, and the height H of the blast cap right above the midpoint C of the roadway bottom plate is 0.1-0.3 m.
When the sliding cone cylinder slides forwards along the alloy steel round rod 7, if the sliding cone cylinder is close to the side end face of the baffle and is not contacted, the rope releasing plus button of the remote controller is pressed, the motor pulls the rope reversely, and the sliding cone cylinder is adjusted to slide down along the alloy steel round rod from top to bottom until the sliding cone cylinder is contacted with the baffle.
Has the advantages that: due to the adoption of the technical scheme, the gas sample collecting device has the advantages of simple structure, safe operation and good gas sample collecting effect, and compared with the prior art, the gas sample collecting device has the following advantages:
(1) stable structure and reasonable stress of the device. Establishing the size relation of each key part of the device by means of mechanical stress analysis, namely: the curvature radius of the alloy steel round rod is 1.2-1.4 times of that of the arc steel plate, and the 2# concentric reducing pipes and the 3# concentric reducing pipes in the collection chamber are equal in length and are 1.3-1.5 times of those of the 1# concentric reducing pipes. At the moment, the force borne by the alloy steel round rod is 0.675 times that of the arc steel plate, and the force borne by the bearing alloy plate is only 0.559 times that of the alloy steel round rod;
(2) and automatic sampling is realized. The infrared distance measurement module arranged at the baffle plate is used for realizing the starting, braking and speed frequency conversion of the infrared remote control device by means of an infrared distance measurement technology on one hand and an infrared communication technology on the other hand; on the other hand, sampling is carried out at different positions of the slidable value of the acquisition chamber;
(3) and (5) real-time accurate acquisition. By means of the relative specific gravity of the hydrogen sulfide gas, the sampling is simultaneously carried out on the middle line and the upper part of the bottom plate of the roadway according to the specific size of the roadway, and the gradient precision of the sampling in the transverse direction and the longitudinal direction is guaranteed.
Drawings
Fig. 1 is a schematic structural view of a mine roadway fixed-point hydrogen sulfide collecting device.
Fig. 2 is a rear view of the mine roadway fixed-point hydrogen sulfide collection device of the invention.
Figure 3 is a schematic view of the collection chamber of figure 1.
Fig. 4 is a schematic view of the structure of the wire clamp in the collection chamber of fig. 1.
Fig. 5 is a schematic structural view of the sliding cone in fig. 1.
Fig. 6 is a schematic view of the collection chamber and sliding cone connection of fig. 1.
In the figure: 1-universal wheel, 2-directional wheel, 3-baffle, 4-infrared ranging module, 5-sliding cone, 501-annular disc, 502-fixed sleeve, 503-rope sleeve, 504-bearing, 505-hollow hole, 6-collection chamber, 601-concentric reducer, 602-air pipe joint, 603-laser module, 604-one-way valve, 605-hood, 606-wire clamp, 607-capsule, 7-alloy steel round rod, 8-traction rope, 9-transmission pulley, 10-cable, 11-motor, 12-bearing alloy plate, 13-arc steel plate, 14-traction rope hook, 15-operation platform, 16-operation button, 17-traction hook, 18-thickening alloy hookForward and backward speeds of plate and V-device, center of curvature of O-alloy steel round bar, O 1 The center of the curvature of the arc steel plate, the height above the midpoint C of the H-roadway bottom plate, the intersection point of the central line of the A-roadway and the left upper, the intersection point of the central line of the B-roadway and the right upper and the center point of the C-roadway bottom plate.
Detailed Description
An embodiment of the invention is further described below with reference to the accompanying drawings:
as shown in fig. 1, the mine roadway fixed-point hydrogen sulfide collecting device comprises a remote controller and a trailer which is composed of a thickened alloy plate 18, universal wheels 1 and directional wheels 2 symmetrically arranged below the front side and the rear side of the thickened alloy plate 18, wherein the trailer is provided with a motor 11 and a bearing alloy plate 12, one end of the motor 11 is connected with a cable 10, the other end of the motor is connected with a traction rope 8, and the traction rope 8 bypasses a fixed ring at the tail end of the thickened alloy plate 18 and then bypasses a transmission pulley 9 arranged at the top of the bearing alloy plate 12 to be connected with the rear end of a sliding cone 5. An alloy steel round rod 7 is arranged between the front ends of the bearing alloy plate 12 and the thickened alloy plate 18, the center of curvature of the alloy steel round rod 7 is O, an arc steel plate 13 is arranged between the rear ends of the bearing alloy plate 12 and the thickened alloy plate 18, and the center of curvature of the arc steel plate 13 is O 1 The arc steel plate 13 is provided with an operation table 15 with operation buttons 16, as shown in fig. 2. Thickening alloy plate 18 front end be equipped with remote controller wireless connection's infrared ranging module 4, thickening alloy plate 18 front end is equipped with baffle 3 and establishes the couple 17 of pulling on the baffle, infrared ranging module 4 establish at the middle part of baffle 3, tip before being located alloy steel round bar 7. The curvature radius of the alloy steel round rod 7 is 1.2-1.4 times of that of the arc steel plate 13, and the length of the bottom plate of the thickened alloy plate 18 is 5.2-5.5 times of the height of the bearing alloy plate 12. Alloy steel round bar 7 on the cover be equipped with slip awl section of thick bamboo 5, the front end of slip awl section of thick bamboo 5 is connected with 3 collection cavities 6 that gather tunnel hydrogen sulfide at the fixed point, collection cavity 6 including concentric reducing pipe 601, air pipe connector 602, laser module 603, check valve 604, hood 605, fastener 606 and capsule 607, air pipe connector 602 establish the tail end at concentric reducing pipe 601, laser module 603 establish at concentric reducing pipe 601601, the check valve 604 is fixed on the outer wall of the front side of the concentric reducing pipe 601 through screw threads, the front part of the check valve 604 is connected with the hood 605 through a connecting pipe, the rear part of the check valve 604 is connected with the capsule 607 through a connecting pipe, and the capsule 607 is composed of three capsule bodies with different sizes and playing a role in buffering, as shown in fig. 3. The wire clamp 606 is fixed on the connecting tube of the capsule, the wire clamp 606 is in a chevron structure, the middle upright rod is provided with a loop, and the upright rods at two sides are in a hook shape, as shown in fig. 4. The diameter of the rear end surface 501 of the sliding cone cylinder 5 is 1.2-1.5 times of the diameter of the front end surface 501 of the sliding cone cylinder, 3 hollow holes 505 penetrating through the front end surface 501 and the rear end surface 501 are respectively formed in the sliding cone cylinder 5, fixing sleeves 502 are respectively arranged in the 3 hollow holes 505, sawtooth convex rubber layers with the shearing strength of 16MPa are distributed in the holes of the fixing sleeves 502, a ball disc 504 is embedded in the inner wall of the central hole of the rear end surface of the sliding cone cylinder 5, the inner diameter of the ball disc 504 is the same as that of the front end surface of the sliding cone cylinder 5 so as to ensure the sliding stability of the cone cylinder 5, and rope sleeves 503 connected with the traction ropes 8 are arranged on the left side and the right side of the rear end surface 501 of the cone cylinder 5. As shown in fig. 5. The number of the collecting chambers 6 is 3, the 3 collecting chambers 6 are arranged in a triangle, the concentric reducing pipes 601 in the 3 collecting chambers 6 arranged in the triangle are divided into 1#, 2# and 3# concentric reducing pipes, the length of the 2# and 3# concentric reducing pipes in the 1#, 2# and 3# concentric reducing pipes is equal to the length of the same horizontal plane, the 1# reducing pipe is positioned between the lower parts of the 2# and 3# concentric reducing pipes, the length of the 2# and 3# concentric reducing pipes is 1.3-1.5 times that of the 1# reducing pipe, preferably, the length of the 2# and 3# concentric reducing pipes 601 is 10m, and the length of the 1# concentric reducing pipe 601 is 7.09m; as shown in fig. 6.
According to the mine roadway fixed-point hydrogen sulfide collection method using the device, along with coal roadway tunneling or working face extraction, the infrared distance measurement module 4 of the baffle 3 on the roadway fixed-point hydrogen sulfide collection device is started through a remote controller, so that the roadway fixed-point hydrogen sulfide collection device moves forwards, when the distance from the roadway fixed-point hydrogen sulfide collection device to the head of the front roadway is 8-12m, the roadway fixed-point hydrogen sulfide collection device stops moving forwards, the sliding cone 5 is controlled to move forwards through an operation button 16 on an operation table 15 until the concentric reducer 2# and the concentric reducer 3# are away from intersection points A and B of the roadway center line and the left and right sides, and the concentric reducer 1# is away from a height H position right above the roadway bottom plate midpoint c, so that a gas sample is collected in real time;
in the preparation work, the device structure is stable, the alloy steel round rod 7 takes O as the curvature center, and the arc steel plate 13 takes O as the curvature center 1 The radius of curvature of the arc steel plate is 1.2-1.4 times of that of the arc steel plate, the force borne by the alloy steel round rod 7 is 0.675 times of that of the arc steel plate 13, and the force borne by the bearing alloy plate 12 is only 0.559 times of that of the alloy steel round rod 7; meanwhile, the length of the bottom plate of the thickened alloy plate 18 is 5.2-5.5 times of the height of the bearing alloy plate 12, so that an anti-slip device is not required to be additionally arranged on the device, and the transverse load weight far exceeds the longitudinal load size;
during working, along with coal roadway tunneling or working face mining, firstly, the infrared distance measuring module 4 of the baffle 3 is started, the distance from the front end part of the device to the head of the roadway is measured, gas sampling is carried out in real time within a range of 20m from the head of the roadway in real time, and gas sampling is scheduled to be carried out once every 10 m;
taking a position of the baffle 3, which is 10m away from the head of the roadway, as an example, the method for collecting the gas sample comprises the following specific steps:
(1) wire preparation
In a switch off state, the cable 10 is connected to an explosion-proof switch of an underground power supply, air pipe connectors 602 of 3 acquisition chambers 6 are connected to an existing underground compressed air system of a mine, capsules 607 are fixed through wire clamps 606, a traction hook 17 is connected with a winch cable in the mine, and 3 concentric reducer 601 in the 3 acquisition chambers 6 are distributed and fixed in a fixed sleeve 502 in a fixed point air extraction position direction, namely three concentric reducer 601 of 1#, 2# and 3# are distributed and fixed in a triangular distribution state, so that the air pipe connectors 602 extend out of the tail of the fixed sleeve 502;
(2) distance control
A distance measuring button of a remote controller is pressed, and the roadway fixed-point hydrogen sulfide acquisition device is driven by a winch cable to move forward at a set forward speed V = +0.5 m/s; a voice button of a remote controller is pressed in advance, when the distance from the head of a roadway in front is measured to be 10m by an infrared ranging module 4 arranged on a baffle plate 3, after the distance is prompted by voice, a 'brake' button is pressed, the universal wheel 1 and the directional wheel 2 stop running, and the trailer stops moving forwards;
(3) zoom line control
Through a control button of a remote controller or an operation button 16 on an operation table 15, a motor 11 pulls a rope 8 to pay off and control the sliding cone 5 to slide forwards along the alloy steel round rod 7, so as to drive 3 acquisition chambers 6 arranged on the sliding cone 5 to move forwards in an appointed direction until the sliding cone 5 is contacted with the baffle 3, infrared light guide is provided for an operator through a laser module 603, and the concentric reducer 601 is positioned at an appointed position of a roadway; in order to ensure that the equipment is suitable for various geological environments, when the remote controller fails, the arc-shaped steel plate 13 is provided with an operation button 16 to implement alternative manual operation.
If the sliding cone 5 is close to the end face of the side of the baffle 3 and is not contacted, pressing a remote controller rope releasing plus button, pulling a rope 8 by a motor 11 in a reverse direction, and adjusting the sliding cone 5 to slide down along an alloy steel round rod 7 from top to bottom until the sliding cone 5 is contacted with the baffle 3; at the moment, the laser module 603 provides infrared light guidance for an operator, and the distance points of the height H right above the center line of the heading direction of the roadway, the intersection points A and B of the left and right walls and the central point C of the roadway bottom plate are mainly referred to so as to ensure that the positions of the front sampling points of the three concentric reducer pipes 601 are correct;
when the 1# concentric reducing pipe 601 slides along the alloy steel round rod 7 and the front end surface 501 of the sliding cone 5 contacts with the baffle 3, the height difference between the connecting part of the 1# concentric reducing pipe 601 and the wind cap 605 and the baffle 3 is 0.45m, and the height H of the wind cap 605 right above the midpoint C of the roadway bottom plate is 0.1-0.3 m.
(4) Forced air sampling
Because the diameter of the circular ring at the tail part of the sliding cone 5 is 1.2-1.5 times of that of the front part, a mine compressed air pipeline is connected with an air pipe connector 602 through the tail part of the sliding cone 5, a switch of a mine compressed air system is opened, a one-way valve 604 is opened, an air sample passes through an air cap 605 and enters a capsule 607 consisting of three capsules with different sizes, the buffering effect is realized, the capsule cannot be broken under strong pressure, when the compressed air is 0.7MPa, the air is continuously compressed for 5min, and fixed-point air sample collection of the intersection points A and B of the center line of the roadway, the left and right sides and the position of the height H close to the right upper part of the center point c of the roadway bottom plate is realized;
(5) withdrawing recovery gas sample
When three capsule bodies of the capsule 607 are expanded simultaneously and sampling is finished, at the moment, the one-way valve 604 is closed, a 'variable speed-' button of a remote controller is pressed, the forward speed is set to be V = -0.5m/s, the motor 11 is controlled to move backwards in the reverse direction until a safe area of a roadway is supported, a 'brake' button is pressed, the connecting wire clamp 606 and the capsule 607 are taken down together, and the inlet of the capsule 607 is bound by the aid of the elastic force of the wire clamp 606; meanwhile, the connection between the underground compressed air and the air pipe joint 602 is released, and then the three concentric reducer pipes 601 are taken down from the fixed sleeve 502 with the smaller diameter at the front end of the sliding cone 5 and are cleaned and stored; and finally, pressing a 'line shrinkage-' button of the remote controller, retracting the sliding cone 5 back and moving upwards along the alloy steel round rod 7 until the sliding cone is close to the transmission pulley 9 at the intersection of the bearing alloy plate 12 and the arc steel plate 13, and finishing primary gas sample collection.
Claims (10)
1. The utility model provides a mine tunnel hydrogen sulfide collection system of fixing a point, includes the remote controller, its characterized in that: still include by thickening alloy board (18), the symmetry establish the trailer that universal wheel (1) and directional wheel (2) below both sides constitute around thickening alloy board (18), the trailer on be equipped with motor (11) and bearing alloy board (12), bearing alloy board (12) and thickening alloy board (18) front end between be equipped with alloy steel round bar (7), be equipped with between bearing alloy board (12) and thickening alloy board (18) rear end circular arc steel sheet (13), circular arc steel sheet (13) on be equipped with operation panel (15) that have operating button (16), thickening alloy board (18) front end be equipped with infrared ranging module (4) with remote controller wireless connection, alloy steel round bar (7) go up the cover and be equipped with slip cone (5), the front end of slip cone (5) is connected with a plurality of collection chambers (6) that fixed point gathered tunnel hydrogen sulfide, motor (11) one end connecting cable (10), other end connection pull rope (8), pull rope (8) around alloy board (18) tail end, thickening alloy board (9) are established again around bearing cone (9) and fixed ring (9) connection end, and pulley (9) connection end are connected.
2. The mine roadway fixed-point hydrogen sulfide collection device of claim 1, wherein: thickening alloy plate (18) front end is equipped with baffle (3) and establishes traction couple (17) on the baffle, infrared ranging module (4) establish at the middle part of baffle (3), be located alloy steel round bar (7) front end portion.
3. The mine roadway fixed-point hydrogen sulfide collection device of claim 1, wherein: the curvature radius of the alloy steel round rod (7) is 1.2-1.4 times of that of the arc steel plate (13), and the length of the bottom plate of the thickened alloy plate (18) is 5.2-5.5 times of the height of the bearing alloy plate (12).
4. The mine roadway fixed-point hydrogen sulfide collection device of claim 1, wherein: the collecting chambers (6) are 3, the 3 collecting chambers (6) are arranged in a triangular mode, concentric reducing pipes (601) in the 3 collecting chambers (6) arranged in the triangular mode are divided into 1#, 2# and 3# concentric reducing pipes, the 2# and 3# concentric reducing pipes are equal in length on the same plane, the 1# reducing pipe is located between the lower portions of the 2# and 3# concentric reducing pipes, and the length of the 2# and 3# concentric reducing pipes is 1.3-1.5 times that of the 1# reducing pipe.
5. The mine roadway fixed-point hydrogen sulfide collecting device according to claim 1, characterized in that: gather cavity (6) including concentric reducing pipe (601), tuber pipe joint (602), laser module (603), check valve (604), hood (605), fastener (606) and capsule (607), tuber pipe joint (602) establish the tail end at concentric reducing pipe (601), laser module (603) establish the front end at concentric reducing pipe (601), check valve (604) fix on the outer wall of concentric reducing pipe (601) front side through the screw thread, the front portion of check valve (604) links to each other with hood (605) through the connecting pipe, the rear portion of check valve (604) links to each other with capsule (607) through the connecting pipe, fastener (606) are fixed on the connecting pipe of capsule, capsule (607) constitute by three different sizes utricules that play the cushioning effect.
6. The mine roadway fixed-point hydrogen sulfide collection device of claim 1, wherein: the diameter of the rear end face (501) of the sliding cone cylinder (5) is 1.2-1.5 times that of the front end face (501), 3 hollow holes (505) penetrating through the front end face and the rear end face (501) are formed in the sliding cone cylinder (5), fixing sleeves (502) are arranged in the 3 hollow holes (505), sawtooth protruding rubber layers with the shearing strength of 16MPa are distributed in the holes of the fixing sleeves (502), a ball disc (504) is embedded in the inner wall of the central hole of the rear end face of the sliding cone cylinder (5), the inner diameter of the ball disc (504) is the same as that of the front end face of the sliding cone cylinder (5) so as to ensure the sliding stability of the sliding cone cylinder (5), and rope sleeves (503) connected with a traction rope (8) are arranged on the left side and the right side of the rear end face (501) of the sliding cone cylinder (5).
7. The mine roadway fixed-point hydrogen sulfide collection device of claim 5, wherein: the wire clamp (606) is of a herringbone structure, a loop is arranged on the middle vertical rod, and the vertical rods on the two sides are hook-shaped.
8. A mine roadway site-specific hydrogen sulfide collection method using the device of any one of claims 1 to 6, characterized in that: with coal roadway tunneling or working face extraction, an infrared distance measuring module (4) of a baffle (3) on the roadway fixed-point hydrogen sulfide collecting device is started through a remote controller, the roadway fixed-point hydrogen sulfide collecting device is enabled to move forwards, when the distance from the roadway fixed-point hydrogen sulfide collecting device to the front roadway head is 8-12m, the roadway fixed-point hydrogen sulfide collecting device stops moving forwards, a sliding cone (5) is controlled to move forwards until the positions of 2# concentric reducer and 3# concentric reducer, which are far away from the roadway central line, the intersection points A and B of the left and right walls, and the position of 1# concentric reducer, which is far away from the position H of the height right above the center point c of a roadway bottom plate, are reached, and gas samples are collected in real time; the method comprises the following specific steps:
(1) wire preparation
In a switch off state, connecting the cable (10) to an explosion-proof switch of an underground power supply, connecting air pipe connectors (602) of 3 acquisition chambers (6) to an existing underground compressed air system of a mine, fixing a capsule (607) through a wire clamp (606), connecting a traction hook (17) with a winch cable in the mine, and fixing concentric reducer pipes (601) in a fixed-point air acquisition position direction in a fixed sleeve (502) in a distributed manner, so that the air pipe connectors (602) extend out of the tail part of the fixed sleeve (502);
(2) distance control
A distance measuring button of a remote controller is pressed, and the roadway fixed-point hydrogen sulfide acquisition device is driven by a winch cable to move forward at a set forward speed V = +0.5 m/s; a voice button of a remote controller is pressed in advance, when an infrared ranging module (4) arranged on a baffle plate (3) measures that the distance from the head of a roadway in front is 10m, a 'brake' button is pressed after the distance is prompted by voice, the universal wheel (1) and the directional wheel (2) stop running, and a trailer stops advancing;
(3) zoom line control
Through a control button of a remote controller or an operation button (16) on an operation table (15), a motor (11) pulls a rope (8) to pay off and control the sliding cone cylinder (5) to slide forwards along the alloy steel round rod (7), a plurality of acquisition chambers (6) arranged on the sliding cone cylinder (5) are driven to move forwards in a specified direction until the sliding cone cylinder (5) is contacted with the baffle (3), infrared light guide is provided for an operator through a laser module (603), and the concentric reducer (601) is located at a specified position of a roadway;
(4) forced air sampling
Opening a switch of a mine compressed air system, opening a one-way valve (604), enabling the gas sample to pass through a blast cap (605) and enter a capsule (607) formed by three capsule bodies with different sizes and playing a buffering role, ensuring that the capsule cannot be broken under strong pressure, and when the compressed air is 0.7MPa, continuously compressing the air for 5min to realize fixed-point gas sample collection of the roadway;
(5) retreating and recycling gas sample
When three capsule bodies of the capsule (607) are expanded simultaneously and sampling is finished, at the moment, the one-way valve (604) is closed, a 'variable speed-' button of a remote controller is pressed, the forward speed is set to be V = -0.5m/s, the motor (11) is controlled to retreat in the opposite direction until a safe area of a roadway is supported, a 'brake' button is pressed, the connecting wire clamp (606) and the capsule (607) are taken down together, and the inlet of the capsule (607) is bound by the aid of the elasticity of the wire clamp (606); meanwhile, a 'line shrinkage-' button of the remote controller is pressed, the sliding cone cylinder (5) retreats and retracts to move upwards along the alloy steel round rod (7) until the sliding cone cylinder is close to a transmission pulley (9) at the intersection of the bearing alloy plate (12) and the arc steel plate (13).
9. The mine roadway fixed-point hydrogen sulfide collection method of claim 8, wherein: when the 1# concentric reducing pipe (601) slides along the alloy steel round rod (7) and the front end surface (501) of the sliding cone cylinder (5) is in contact with the baffle (3), the height difference between the connecting part of the 1# concentric reducing pipe (601) and the air cap (605) and the baffle (3) is 0.45m, and the height of the air cap (605) at a position H right above the center point C of the roadway bottom plate is 0.1-0.3 m.
10. The mine roadway fixed-point hydrogen sulfide collection method according to claim 8, characterized in that: when the sliding cone cylinder (5) slides forwards along the alloy steel round rod (7), if the sliding cone cylinder (5) is close to the side end face of the baffle (3) and is not contacted, the remote controller rope releasing plus button is pressed, the motor (11) pulls the rope (8) reversely, and the sliding cone cylinder (5) is adjusted to slide down from top to bottom along the alloy steel round rod (7) until the sliding cone cylinder (5) is contacted with the baffle (3).
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