CN112730797A - Device for coal and gas outburst simulation test - Google Patents
Device for coal and gas outburst simulation test Download PDFInfo
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- CN112730797A CN112730797A CN202011512124.XA CN202011512124A CN112730797A CN 112730797 A CN112730797 A CN 112730797A CN 202011512124 A CN202011512124 A CN 202011512124A CN 112730797 A CN112730797 A CN 112730797A
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- 238000004088 simulation Methods 0.000 title claims abstract description 43
- 239000003245 coal Substances 0.000 title claims abstract description 30
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 239000011593 sulfur Substances 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
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- 238000003780 insertion Methods 0.000 description 8
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- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
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- 229910052799 carbon Inorganic materials 0.000 description 2
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- G—PHYSICS
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/645—Protecting screens at filter inlet or outlet
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- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention discloses a device for a coal and gas outburst simulation test, which comprises a gas outburst simulation device, wherein the gas outburst simulation device is a rectangular box body, one side of the gas outburst simulation device is provided with an outburst exhaust port, the outburst exhaust port is provided with a gas collection mechanism, one side of the gas collection mechanism is connected with a tail gas treatment mechanism, and a gas outlet rate and flow detection device is arranged between the gas collection mechanism and the outburst exhaust port; the device for the coal and gas outburst simulation test has the advantages of being simple in structure and convenient to operate, collecting generated air through the gas collecting mechanism on the device, processing the air through the tail gas processing mechanism, and then discharging the air, effectively protecting the test environment, and meanwhile, the device is provided with the special air outlet rate and flow detection device for detecting the flow rate, the flow and the air pressure of the passing simulation gas, so that effective test recording and pressure relief protection equipment at key moments are carried out.
Description
Technical Field
The invention relates to the technical field of gas outburst, in particular to a device for a coal and gas outburst simulation test.
Background
The gas outburst is often generated in the coal mining process, which is also called as 'coal and gas outburst', along with the increase of the coal mining depth and the increase of the gas content, a resistance line is broken through in a soft coal bed under the action of the ground stress and the action of the gravity released by the gas, a large amount of gas and coal are instantly released to cause disasters such as collapse and the like, in the simulation experiment at the current stage, when the simulation gas breaks through the coal bed, the sprayed high-pressure gas is usually in a direct discharge form, so that the black smoke is fully distributed in the experiment site to cause air pollution of the experiment site, damage is caused to the cleanness in the experiment site, the detection on the concentration and the amount of the discharged black smoke is also not intuitive, and the tunnel is generated by deep research aiming at the problems.
Disclosure of Invention
The invention aims to solve the problems, designs a device for a coal and gas outburst simulation test, and solves the problems of the prior art.
The technical scheme of the invention for realizing the aim is as follows: a device for a coal and gas outburst simulation test comprises a gas outburst simulation device, wherein the gas outburst simulation device is a rectangular box body, one side of the gas outburst simulation device is provided with an outburst exhaust port, a gas collection mechanism is arranged on the outburst exhaust port, one side of the gas collection mechanism is connected with a tail gas treatment mechanism, and a gas outlet rate and flow detection device is arranged between the gas collection mechanism and the outburst exhaust port;
the gas collection mechanism comprises: the device comprises an exhaust hood, a connecting hood, a support frame, two pairs of universal wheels, a gas collecting hood, a pair of pressure relief pipes and a pair of pressure relief valves;
the exhaust hood is installed on the protruding exhaust port, the exhaust hood is a conical hood, the connecting hood is connected to the end, with the larger inner diameter, of the exhaust hood, the connecting hood is a transparent cylindrical hood, a pair of supporting frames are arranged on the bottom surface of the connecting hood, two pairs of universal wheels are arranged on the bottom surface of the supporting frames, a gas collecting hood is arranged at one end, opposite to the exhaust hood, of the connecting hood, the gas collecting hood is of the same structure as the exhaust hood and is installed at the other end of the connecting hood in a mirror image mode, a pair of pressure relief pipes are connected to two side wall surfaces of the center of the connecting hood respectively, and a pair of.
The tail gas treatment mechanism includes: the air inlet device comprises an air inlet cylinder, a plug-in opening, an exhaust fan, a pair of outer clamps, a plurality of filter elements, a sealing cover, a pair of mounting plates and a plurality of pairs of connecting pieces;
the gas cylinder is connected with the end part of the gas collecting channel through a pair of flange plates, a through cavity of a cylindrical structure is formed in the gas cylinder, an insertion opening is formed in the through cavity, the exhaust fan is installed on the end part of the gas cylinder, a pair of outer clamps are arranged on two sides below the insertion opening respectively, the sealing cover is buckled on the insertion opening, the multi-filter element is inserted in the through cavity below the insertion opening and is limited by the pair of outer clamps respectively, a pair of mounting plates are arranged on two sides of the through cavity below the sealing cover respectively and are paired, and a plurality of pairs of limiting holes are formed in the mounting plates.
The air output rate and flow rate detection device comprises: the device comprises a detection through pipe, an air pressure detector, a flow meter and a flow velocity meter;
the exhaust hood end connection has the detection siphunculus of cylindricality structure, be equipped with the baroceptor on the detection siphunculus, baroceptor one side is equipped with the flowmeter, flowmeter one side is equipped with the velocity of flow meter, it is equipped with a pair of ring flange and is connected with outstanding gas vent to detect the siphunculus tip.
And a plurality of flange connections are respectively arranged between the connecting cover and the exhaust cover as well as between the connecting cover and the gas-collecting hood.
The end part of the air inlet cylinder is provided with a pair of backflow ports, and the pair of backflow ports are respectively connected with the pair of pressure relief pipes.
The multi-cartridge includes: the filter screen cylinder, the pair of dust screens, the activated carbon filter element, the over-sulfur filter element, the pair of bellmouths and the pair of fixing rings;
a pair of the dust screen install respectively in filter screen section of thick bamboo both ends, filter screen section of thick bamboo comprises the sleeve lock of two semi-ring structures, active carbon filter installs in filter screen section of thick bamboo center and is located one of a pair of dust screen one side, filter screen section of thick bamboo just is located active carbon filter one side and is equipped with the oversulfur filter core, filter screen section of thick bamboo both ends are equipped with a pair of bellmouth respectively, and are a pair of fixed ring cover is located a pair of on the bellmouth.
A pair of reinforcing rods is connected between the pair of supporting frames, one side of each supporting frame extends out of the lengthening plate, and a pair of supporting rods extends out of the bottom surface of the mounting plate and is connected with the lengthening plate.
The display is installed in detecting the siphunculus outside, and is connected with atmospheric pressure detector, flowmeter and velocity meter respectively.
Two pairs of support legs are arranged on the bottom surfaces of the support frames and are arranged on the outer sides of the two pairs of universal wheels.
And the outer ring of the connecting cover is provided with a plurality of reinforcing ribs.
The device for the coal and gas outburst simulation test manufactured by the technical scheme of the invention has the advantages of simple structure and convenient operation, the generated air is collected by the gas collecting mechanism on the device and is treated by the tail gas treatment mechanism for emission, the test environment is effectively protected, and meanwhile, the device is provided with the special air output rate and flow detection device for detecting the flow rate, the flow and the air pressure of the passing simulation gas, thereby effectively carrying out the test record and protecting the device by pressure relief at key time.
Drawings
Fig. 1 is a schematic front view of a device for a coal and gas outburst simulation test according to the present invention.
FIG. 2 is a schematic side sectional view showing the structure of an apparatus for a coal and gas outburst simulation test according to the present invention.
Fig. 3 is a schematic top view of the device for simulating coal and gas outburst according to the present invention.
Fig. 4 is a schematic partial sectional structural view of an apparatus for a coal and gas outburst simulation test according to the present invention.
FIG. 5 is a schematic diagram of a partial enlarged structure of the device for simulating coal and gas outburst according to the present invention.
In the figure: 1. a gas outburst simulation device; 2. a protruding exhaust port; 3. an exhaust hood; 4. a connecting cover; 5. a support frame; 6. a universal wheel; 7. a gas-collecting hood; 8. a pressure relief pipe; 9. a pressure relief valve; 10. an air inlet cylinder; 11. a plug-in mounting opening; 12. an exhaust fan; 13. an outer card; 14. a plurality of filter elements; 15. a sealing cover; 16. mounting a plate; 17. a connecting member; 18. detecting a through pipe; 19. an air pressure detector; 20. a flow meter; 21. a flow rate meter; 22. a return port; 23. a reinforcing bar; 24. a lengthening plate; 25. a display; 26. a support leg; 27. reinforcing ribs; 1401. a filter screen cylinder; 1402. a dust screen; 1403. an activated carbon filter element; 1404. a sulfurous filter element; 1405. a socket; 1406. and (4) fixing the ring.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings, as shown in fig. 1-5, the present embodiment is characterized in that the present invention comprises a gas outburst simulation device 1, the gas outburst simulation device 1 is a rectangular box, one side of the gas outburst simulation device 1 is provided with a outburst exhaust port 2, the outburst exhaust port 2 is provided with a gas collection mechanism, one side of the gas collection mechanism is connected with a tail gas treatment mechanism, and a gas outlet rate and flow rate detection device is arranged between the gas collection mechanism and the outburst exhaust port 2; the gas collection mechanism includes: the device comprises an exhaust hood 3, a connecting hood 4, a support frame 5, two pairs of universal wheels 6, a gas collecting hood 7, a pair of pressure relief pipes 8 and a pair of pressure relief valves 9; the exhaust hood 3 is arranged on the protruded exhaust port 2, the exhaust hood 3 is a conical hood, the connecting hood 4 is connected to one end, with a larger inner diameter, of the exhaust hood 3, the connecting hood 4 is a transparent cylindrical hood, the bottom surface of the connecting hood 4 is provided with a pair of supporting frames 5, the bottom surfaces of the pair of supporting frames 5 are provided with two pairs of universal wheels 6, one end, opposite to the exhaust hood 3, of the connecting hood 4 is provided with a gas collecting hood 7, the gas collecting hood 7 is structurally the same as the exhaust hood 3 and is arranged at the other end of the connecting hood 4 in a mirror image manner, two side wall surfaces in the center of the connecting hood 4 are respectively connected with a pair; this a device for coal and gas outburst analogue test, simple structure, convenient operation collects the air that produces through gas collection mechanism above that and handles through tail gas processing mechanism and discharge again, effective protection test environment is equipped with dedicated air off rate flow detection device simultaneously for detect the velocity of flow and the atmospheric pressure of the simulation gas that passes through, thereby carry out effectual experiment record and crucial pressure release protection equipment constantly.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
Example (b): as can be seen from the attached drawings 1-5 in the specification, the device for the coal and gas outburst simulation test comprises a gas outburst simulation device 1, the gas outburst simulation device 1 is a rectangular box body, a outburst exhaust port 2 is arranged on one side of the gas outburst simulation device 1, a gas collecting mechanism is arranged on the outburst exhaust port 2, a tail gas treatment mechanism is connected to one side of the gas collecting mechanism, a gas outlet rate and flow rate detection device is arranged between the gas collecting mechanism and the outburst exhaust port 2, in the specific implementation process, the gas outburst condition is simulated through the gas outburst simulation device 1, when the gas with the simulated gas outburst is discharged from the outburst exhaust port, the discharged gas is collected through the gas collecting mechanism to simulate the gas injection condition during the outburst, in the process, the gas treatment mechanism is connected with the tail gas treatment mechanism through, the gas collecting mechanism is connected with the protruding exhaust port 2 and is provided with a gas outlet rate and flow rate detection device for detecting gas outlet amount and gas outlet flow rate;
as can be seen from fig. 1 to 5 of the specification, the gas collection mechanism includes: the device comprises an exhaust hood 3, a connecting hood 4, a support frame 5, two pairs of universal wheels 6, a gas collecting hood 7, a pair of pressure relief pipes 8 and a pair of pressure relief valves 9, wherein the connection relation and the position relation are as follows;
the exhaust hood 3 is arranged on the protruded exhaust port 2, the exhaust hood 3 is a conical hood, the connecting hood 4 is connected to one end, with a larger inner diameter, of the exhaust hood 3, the connecting hood 4 is a transparent cylindrical hood, the bottom surface of the connecting hood 4 is provided with a pair of supporting frames 5, the bottom surfaces of the pair of supporting frames 5 are provided with two pairs of universal wheels 6, one end, opposite to the exhaust hood 3, of the connecting hood 4 is provided with a gas collecting hood 7, the gas collecting hood 7 is structurally the same as the exhaust hood 3 and is arranged at the other end of the connecting hood 4 in a mirror image manner, two side wall surfaces in the center of the connecting hood 4 are respectively connected with a pair;
in the specific implementation process, two pairs of support legs 26 are respectively arranged on the bottom surfaces of the pair of support frames 5 and are arranged on the outer sides of the two pairs of universal wheels 6, the support frames 5 are used for supporting the connecting cover 4, is supported by the supporting legs 26, the universal wheels 6 are used for moving the supporting frame 5, the exhaust hood 3 is connected with the protruded exhaust port 2 of the gas protrusion simulating device, the generated tail gas is discharged into the exhaust hood 3, after entering the exhaust hood 3, the gas is matched with the connecting hood 4, the generated gas is introduced into the connecting hood 4, further simulating the gas rush condition generated when the gas is protruded, so that an experimenter can carry out visual observation outside the connecting cover 4, after gas outburst, when the tail gas that detects measures pressure higher, the relief valve 9 through both sides is opened, exports high-pressure tail gas reposition of redundant personnel from the relief pipe 8, avoids influencing the intensity of connecting cover 4, and the connecting cover 4 outer loop is equipped with a plurality of strengthening ribs 27 and is used for strengthening the structural strength of connecting cover 4.
As can be seen from fig. 1 to 5 of the specification, the exhaust gas treatment mechanism includes: the air inlet device comprises an air inlet cylinder 10, a plug-in opening 11, an exhaust fan 12, a pair of outer clamps 13, a multi-filter element 14, a sealing cover 15, a pair of mounting plates 16 and a plurality of pairs of connecting pieces 17, wherein the connection relationship and the position relationship are as follows;
an air inlet cylinder 10 is connected to the end part of a gas collecting hood 7 through a pair of flange plates, a through cavity with a cylindrical structure is formed in the air inlet cylinder 10, an insertion opening 11 is formed in the through cavity, an exhaust fan 12 is installed on the end part of the air inlet cylinder 10, a pair of outer clamps 13 are respectively arranged on two sides below the insertion opening 11, a sealing cover 15 is buckled on the insertion opening 11, a plurality of filter elements 14 are inserted into the through cavity below the insertion opening 11 and are limited by the pair of outer clamps 13 respectively, a pair of mounting plates 16 are respectively arranged on two sides of the through cavity below the sealing cover 15, a plurality of pairs of limiting holes are formed in the pair of mounting plates 16, and a plurality of pairs of;
in the specific implementation process, a pair of reinforcing rods 23 is connected between a pair of supporting frames 5, an extension plate 24 extends from one side of each supporting frame 5, a pair of supporting rods extends from the bottom surfaces of a pair of mounting plates 16 and is connected with the extension plate 24 to fix an air inlet cylinder 10, a pair of return ports 22 are arranged at the end part of the air inlet cylinder 10, the pair of return ports 22 are respectively connected with a pair of pressure relief pipes 8, a plurality of flange connections are respectively arranged between a connecting cover 4 and an exhaust hood 3 and a gas collecting hood 7, when pressure gas is exhausted from the pair of pressure relief pipes 8 at two sides and then flows back into the air inlet cylinder 10 through the pair of return ports 22, the air inlet cylinder 10 is in butt joint with the gas collecting hood 7 to be used as a tail gas treatment channel, an exhaust fan 12 at the end part generates suction force, the plurality of filter elements 14 are limited by an outer clamp 13 in the air inlet cylinder 10, the, the sealing cover 15 is fixed on the multi-filter element 14, the inserting opening 11 at the position of the multi-filter element 14 is covered by the sealing cover 15, leakage is avoided, and the connecting piece 17 on the sealing cover 15 is connected with the mounting plate 16, so that the multi-filter element 14 can be conveniently replaced by dismounting the sealing cover 15.
As can be seen from fig. 1-5 of the specification, the multiple cartridge 14 comprises: a filter screen cylinder 1401, a pair of dust screens 1402, an activated carbon filter 1403, a sulfur filter 1404, a pair of sockets 1405 and a pair of fixing rings 1406, wherein the connection relationship and the position relationship are as follows;
the pair of dust screens 1402 are respectively installed at two ends of the filter screen cylinder 1401, the filter screen cylinder 1401 is formed by buckling two sleeves of semi-annular structures, the activated carbon filter element 1403 is installed at the center of the filter screen cylinder 1401 and is positioned at one side of one of the pair of dust screens 1402, the sulfur filter element 1404 is arranged in the filter screen cylinder 1401 and is positioned at one side of the activated carbon filter element 1403, the two ends of the filter screen cylinder 1401 are respectively provided with a pair of sockets 1405, and the pair of fixing rings 1406 is sleeved on the pair of sockets 1405.
In the specific implementation process, the filter screen cylinder 1401 is formed by connecting two semi-ring sleeves, the semi-ring sleeves are connected with each other, the semi-ring sleeves share a straight screen cylinder through groove, the dustproof screens 1402 on two sides are used for air to pass through, the fixing rings 1406 are sleeved on the sockets 1405, the filter screen cylinder 1401 is fixed, air flows in from the dustproof screen 1402 on one side, then dust filtration is carried out through the activated carbon filter 1403, part of solid particles and carbide in the dust filtration are adsorbed, and sulfur-containing substances in the dust filtration are adsorbed through the sulfur filter 1404.
As can be seen from the accompanying drawings 1-5 of the specification, the air outlet rate and flow rate detection device comprises: a detection through pipe 18, an air pressure detector 19, a flow meter 20 and a flow velocity meter 21;
the end part of the exhaust hood 3 is connected with a detection through pipe 18 with a cylindrical structure, the detection through pipe 18 is provided with an air pressure detector 19, one side of the air pressure detector 19 is provided with a flowmeter 20, one side of the flowmeter 20 is provided with a flow meter 21, and the end part of the detection through pipe 18 is provided with a pair of flange plates connected with the protruded exhaust port 2.
In the concrete implementation process, through detection siphunculus 18 on the exhaust hood 3, make the air that flows from outstanding gas vent 2 through detecting siphunculus 18, and then utilize flowmeter 20 on detecting siphunculus 18 to carry out flow detection, utilize odometer 21 to carry out velocity of flow detection, detect the atmospheric pressure that detects the passing through barometer 19, display 25 installs in detecting the siphunculus 18 outside, and be connected with barometer 19, flowmeter 20 and odometer 21 respectively, be used for detecting real-time reading convenience of customers's record, carry out the pressure release through starting relief valve 9 when atmospheric pressure is too high.
In conclusion, the device for the coal and gas outburst simulation test is simple in structure and convenient to operate, generated air is collected through the gas collecting mechanism on the device and is treated through the tail gas treatment mechanism and then discharged, the test environment is effectively protected, and meanwhile, the device is provided with the special air output rate flow detection device and is used for detecting the flow speed, the flow and the air pressure of passing simulation gas, so that effective test records and key time pressure relief protection equipment are carried out.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (10)
1. A device for a coal and gas outburst simulation test comprises a gas outburst simulation device (1), wherein the gas outburst simulation device (1) is a rectangular box body, and one side of the gas outburst simulation device (1) is provided with a outburst exhaust port (2), and the device is characterized in that a gas collection mechanism is arranged on the outburst exhaust port (2), one side of the gas collection mechanism is connected with a tail gas treatment mechanism, and a gas outlet rate and flow detection device is arranged between the gas collection mechanism and the outburst exhaust port (2);
the gas collection mechanism comprises: the device comprises an exhaust hood (3), a connecting hood (4), a support frame (5), two pairs of universal wheels (6), a gas collecting hood (7), a pair of pressure relief pipes (8) and a pair of pressure relief valves (9);
the exhaust hood (3) is installed on the protruded exhaust port (2), the exhaust hood (3) is a conical hood, the connecting hood (4) is connected to the end with the larger inner diameter of the exhaust hood (3), the connecting hood (4) is a transparent cylindrical hood, a pair of supporting frames (5) and a pair of supporting frames (5) are arranged on the bottom surface of the connecting hood (4), two pairs of universal wheels (6) are arranged on the bottom surface of each supporting frame (5), a gas collecting hood (7) is arranged at one end, opposite to the exhaust hood (3), of the connecting hood (4), the gas collecting hood (7) is installed at the other end of the connecting hood (4) in a mode that the structure of the connecting hood (4) is the same as that of the exhaust hood (3) and a mirror image is formed on the side wall of the center of the connecting hood (4), a pair of pressure relief.
2. The apparatus of claim 1, wherein the tail gas treatment mechanism comprises: the air filter comprises an air inlet cylinder (10), a plug-in mounting opening (11), an exhaust fan (12), a pair of outer clamps (13), a multi-filter element (14), a sealing cover (15), a pair of mounting plates (16) and a plurality of pairs of connecting pieces (17);
the gas inlet cylinder (10) is connected to the end part of the gas collecting hood (7) through a pair of flange plates, a through cavity of a cylindrical structure is formed inside the gas inlet cylinder (10), a plug-in opening (11) is formed in the through cavity, an exhaust fan (12) is installed on the end part of the gas inlet cylinder (10), a pair of outer clamps (13) are arranged on two sides of the lower part of the plug-in opening (11) respectively, a sealing cover (15) is buckled on the plug-in opening (11), a multi-filter element (14) is plugged in the through cavity of the lower part of the plug-in opening (11) and is limited by the pair of outer clamps (13) respectively, a pair of mounting plates (16) are arranged on two sides of the through cavity of the lower part of the sealing cover (15) respectively, a plurality of pairs of limiting holes are formed in the mounting plates (16), and a plurality of.
3. The apparatus of claim 1, wherein the gas out rate flow detecting means comprises: a detection through pipe (18), an air pressure detector (19), a flow meter (20) and a flow velocity meter (21);
exhaust hood (3) end connection has detection siphunculus (18) of cylindricality structure, be equipped with baroceptor (19) on detecting siphunculus (18), baroceptor (19) one side is equipped with flowmeter (20), flowmeter (20) one side is equipped with velocity of flow meter (21), it is equipped with a pair of ring flange and is connected with outstanding gas vent (2) to detect siphunculus (18) tip.
4. The device for the coal and gas outburst simulation test according to claim 1, wherein a plurality of flange connections are respectively arranged between the connecting cover (4) and the exhaust cover (3) and the gas collecting cover (7).
5. The device for the coal and gas outburst simulation test is characterized in that the end part of the air inlet cylinder (10) is provided with a pair of backflow ports (22), and the pair of backflow ports (22) are respectively connected with a pair of pressure relief pipes (8).
6. An apparatus for coal and gas burst simulation tests according to claim 2, characterized in that the multi-filter cartridge (14) comprises: a filter screen cylinder (1401), a pair of dust screens (1402), an activated carbon filter element (1403), a sulfur filter element (1404), a pair of sockets (1405) and a pair of fixing rings (1406);
the pair of dust screens (1402) are respectively installed at two ends of the filter screen cylinder (1401), the filter screen cylinder (1401) is formed by buckling two semi-annular sleeves, the activated carbon filter element (1403) is installed at the center of the filter screen cylinder (1401) and located on one side of one of the pair of dust screens (1402), the sulfur filter element (1404) is arranged in the filter screen cylinder (1401) and located on one side of the activated carbon filter element (1403), a pair of sockets (1405) are respectively arranged at two ends of the filter screen cylinder (1401), and the pair of fixing rings (1406) are sleeved on the pair of sockets (1405).
7. The device for simulating the coal and gas outburst is characterized in that a pair of reinforcing rods (23) are connected between a pair of the supporting frames (5), an elongated plate (24) extends from one side of the pair of the supporting frames (5), and a pair of supporting rods extend from the bottom surface of the pair of the mounting plates (16) and are connected with the elongated plate (24).
8. The device for the coal and gas outburst simulation test according to claim 3, wherein the display (25) is installed outside the detection through pipe (18) and is respectively connected with the air pressure detector (19), the flow meter (20) and the flow velocity meter (21).
9. The device for the coal and gas outburst simulation test according to claim 1, wherein two pairs of support legs (26) are respectively arranged on the bottom surfaces of a pair of the support frames (5) and are arranged on the outer sides of two pairs of the universal wheels (6).
10. The device for the simulation test of coal and gas outburst according to claim 1, characterized in that the outer ring of the connecting cover (4) is provided with a plurality of reinforcing ribs (27).
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Application publication date: 20210430 |