CN104155419A - Experimental device for multi-angle diffusion of radioactive radon in loose coal - Google Patents
Experimental device for multi-angle diffusion of radioactive radon in loose coal Download PDFInfo
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- CN104155419A CN104155419A CN201410431281.6A CN201410431281A CN104155419A CN 104155419 A CN104155419 A CN 104155419A CN 201410431281 A CN201410431281 A CN 201410431281A CN 104155419 A CN104155419 A CN 104155419A
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Abstract
The invention discloses an experimental device for multi-angle diffusion of radioactive radon in loose coal. The experimental device comprises a diffusion pipe, a first herringbone ladder, a second herringbone ladder, a steel rope, a constant temperature oil tank and an intelligent temperature data-logging instrument. A pedestal is fixed below the first herringbone ladder; a fixed pulley is installed on the top of the first herringbone ladder; one end of the bottom of the diffusion pipe is supported on the top of the pedestal; the other end of the bottom of the diffusion pipe is supported on the second herringbone ladder; the top of the other end of the diffusion pipe is connected to one end of the steel rope; the other end of the steel rope bypasses the fixed pulley and is fixed on the pedestal; the diffusion pipe comprises an outer pipe and an inner pipe; two ends of the inner pipe extend out of the outer pipe and are connected to flanges; the inner pipe is provided with a sampling rod; the sampling rod is provided with a plurality of activated carbon adsorption balls; the constant temperature oil tank is communicated to a ring cavity body of the diffusion pipe; and a temperature sensor is arranged in the inner pipe. The experiment device can improve studies on radon migration and adsorption law, by adjusting the angle of the diffusion pipe and carrying out diffusion experiments in different directions.
Description
Technical field
The present invention relates to a kind of diffusion experiment device, especially relate to radioactive radon multi-angle diffusion experiment device in a kind of loose coal.
Background technology
Coal is the important basic energy resource of China, is non-renewable resources.The safety in production of mine in spontaneous combustion of coal seam serious threat, and causes resource to waste in a large number, yet spontaneous fire in coal mine betides underground hundreds of meters of depths, due to personnel cannot near and the disguise of burning things which may cause a fire disaster, brought great difficulty to the anti-fireproofing of going out.Therefore, the accurate detection of Self-burning source position is one of great difficult problem in Safety of Coal Mine Production always.Ground isotope is surveyed radon method detection fire location and at the serious mine of spontaneous combustion, is applied as a kind of effective technology, but do not form a perfect theory, therefore, the migration rule of radon in rock stratum during the underground spontaneous combustion of further investigation coal, can further improve isotope and survey the precision of radon method detection of coal seam Self-burning source position, can effectively solve Mine Fire source position and survey this gordian technique, significant to coal bed fire hazard treating.At present, for the migration rule on radioactive radon vertical direction in coal body, possess some special knowledge, but because burning things which may cause a fire disaster under coal mine is present in a space, the diffusion of radon be each to, only study migration and the Adsorption law of radon on single vertical direction, can not meet radon method and survey the needs of burning things which may cause a fire disaster, and cannot guarantee the accuracy of result of detection.Therefore, need take into full account the space of radon respectively to diffusion property, on level and vergence direction, further study, improve and expand migration and the Adsorption law of radon, for radon method, survey burning things which may cause a fire disaster reliable basis is provided, improve detection accuracy, eliminate in time burning things which may cause a fire disaster, guarantee coal enterprise's safety in production.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, radioactive radon multi-angle diffusion experiment device in a kind of loose coal is provided, it is specially adapted to diffusion and the Adsorption law research of radioactive radon on level or vergence direction in coal body, this device can arrange the temperature of coal sample, a plurality of variablees such as granularity and voidage are tested, meet different experiment demands, press close to greatest extent physical condition under coal mine, simulate more exactly diffusion and the adsorption process of radioactive radon in coal body, for the detection of spontaneous combustion of coal seam concealed fire position in mine provides certain theoretical direction.
For achieving the above object, the technical solution used in the present invention is: radioactive radon multi-angle diffusion experiment device in a kind of loose coal, it is characterized in that: comprise diffusion pipeline, the first double ladder, the second double ladder, base, wire rope, thermostatic oil bath, intelligent temperature scan tester table and be arranged on the sampling rod in described diffusion pipeline, described the first double ladder, the second double ladder and base are all fixed on basal plane, described base is arranged on the below of the first double ladder and is fixedly connected with the first double ladder, the top of described the first double ladder is provided with fixed pulley, described diffusion pipeline passes the top that the first double ladder and the second double ladder and one end, bottom are supported on base, described diffusion pipeline and base are rotationally connected, the bottom other end of described diffusion pipeline is supported on the second double ladder and can on the second double ladder, regulates Support Position, the other end top of described diffusion pipeline is connected with one end of wire rope, the other end of described wire rope is walked around fixed pulley and is fixed on base, described diffusion pipeline comprises outer tube and inner tube, the two ends of described inner tube all pass outer tube and end is all connected with flange, the two ends of described outer tube all with the interior seal of tube, between described outer tube and inner tube, form annular housing, described sampling rod is arranged in inner tube, a plurality of charcoal absorption balls are installed on described sampling rod, described annular housing is by the first connecting pipe and the second connecting pipe is communicated with thermostatic oil bath and through the built-in oil pump of thermostatic oil bath and annular housing formation closed circuit, in described inner tube, be provided with the temperature sensor of putting coal sample temperature for detection of its inside, described temperature sensor is connected with the terminals of intelligent temperature scan tester table by higher temperature line and shows institute's detected temperatures by intelligent temperature scan tester table.
Radioactive radon multi-angle diffusion experiment device in above-mentioned loose coal, it is characterized in that: the top of described base is fixed with bearing seat, in described bearing seat, bearing is installed, the quantity of described bearing seat is to be symmetrical arranged before and after two and two bearing seats, between two bearings, be connected with rotating shaft, the middle part of described rotating shaft is fixed with Connection Block, and described Connection Block is fixedly connected with outer tube.
Radioactive radon multi-angle diffusion experiment device in above-mentioned loose coal, it is characterized in that: the front side of described the second double ladder is fixed with a plurality of the first spacing rings from top to bottom, the rear side of described the second double ladder is fixed with a plurality of the second spacing rings from top to bottom, described the first spacing ring and the second spacing ring are all arranged on the right part of the second double ladder, described the first spacing ring is corresponding with the position of the second spacing ring, described outer tube is supported on the second double ladder by bracing frame, support frame as described above be shaped as T font, the crossbeam two ends of support frame as described above snap in respectively the first spacing ring and the second spacing ring.
Radioactive radon multi-angle diffusion experiment device in above-mentioned loose coal, it is characterized in that: one end of described the first connecting pipe is connected with the outlet of thermostatic oil bath, the other end of described the first connecting pipe is connected with the import of annular housing, one end of described the second connecting pipe is connected with the outlet of annular housing, the other end of described the second connecting pipe is connected with the import of thermostatic oil bath, on described the first connecting pipe, be provided with the first valve, on described the second connecting pipe, be provided with the second valve.
Radioactive radon multi-angle diffusion experiment device in above-mentioned loose coal, it is characterized in that: a plurality of coal sample adsorbing spheres are also installed on described sampling rod, described coal sample adsorbing sphere is arranged near charcoal absorption ball position place, a plurality of charcoal absorption balls evenly arrange, and a plurality of coal sample adsorbing spheres evenly arrange.
Radioactive radon multi-angle diffusion experiment device in above-mentioned loose coal, it is characterized in that: described charcoal absorption ball and coal sample adsorbing sphere are all fixed on sampling rod by iron wire, described charcoal absorption ball is comprised of the first entanglement and the activated charcoal being arranged in the first entanglement, and described coal sample adsorbing sphere is comprised of the second entanglement and the coal sample being arranged in the second entanglement.
Radioactive radon multi-angle diffusion experiment device in above-mentioned loose coal, is characterized in that: the quantity of described temperature sensor is a plurality of, and a plurality of temperature sensors are evenly arranged in inner tube.
Radioactive radon multi-angle diffusion experiment device in above-mentioned loose coal, it is characterized in that: described wire rope is fixed on base by chain block, one of them hook of described chain block is connected with wire rope, and another hook of described chain block is hooked on base.
Radioactive radon multi-angle diffusion experiment device in above-mentioned loose coal, is characterized in that: described thermostatic oil bath is GX-2050 type thermostatic oil bath, and described intelligent temperature scan tester table is XMZ-J type the mathematical model instrument.
Radioactive radon multi-angle diffusion experiment device in above-mentioned loose coal, is characterized in that: described the second connecting pipe is stainless steel flexible hose, and described the first connecting pipe is stainless steel flexible hose near a section of thermostatic oil bath.
The present invention compared with prior art has the following advantages:
1, the present invention can be spread by adjusting the angle of pipeline, carry out the diffusion experiment of radon on different directions, fill up the research vacancy on level and vergence direction, improve the research to radon migration and Adsorption law, for radon method, survey mine coal fire certain theoretical foundation is provided.
2, the present invention can press close to physical condition under coal mine to greatest extent, take into full account the various factors that affects radon migration and absorption, a plurality of variablees such as temperature, granularity and voidage that coal sample can be set are tested, more accurately simulate radioactive radon diffusion and adsorption process in different directions in mine, guarantee science and the practicality of achievement in research.
3, Stability Analysis of Structures of the present invention, safe, simple in structure, processing cost is little, and installation, dismounting and easy to operate.
Below by drawings and Examples, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A place enlarged drawing of Fig. 1.
Fig. 3 is the B place enlarged drawing of Fig. 1.
Fig. 4 is that Fig. 1 removes the right view after the first spacing ring, the second spacing ring, bracing frame and chain block.
Fig. 5 is the C place enlarged drawing of Fig. 2.
Fig. 6 is that the installation of the present invention's the second double ladder, bracing frame, outer tube and inner tube is related to schematic diagram.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is that the installation that the present invention samples rod, charcoal absorption ball and coal sample adsorbing sphere is related to schematic diagram.
Fig. 9 is the structural representation of charcoal absorption ball of the present invention.
Figure 10 is the structural representation of coal sample adsorbing sphere of the present invention.
Description of reference numerals:
1-annular housing; 2-thermostatic oil bath; 3-intelligent temperature scan tester table;
4-temperature sensor; 5-sampling rod; 6-bracing frame;
7-fixed pulley; 8-base; 9-bearing seat;
9-1-bearing; 9-2-rotating shaft; 9-3-Connection Block;
10-1-the first double ladder; 10-2-the second double ladder; 11-1-the first connecting pipe;
11-2-the second connecting pipe; 12-wire rope; 13-1-the first valve;
13-2-the second valve; 14-1-the first spacing ring; 14-2-the second spacing ring;
15-outer tube; 16-inner tube; 17-flange;
18-charcoal absorption ball; 18-1-the first entanglement; 18-2-activated charcoal;
19-metal rod; 20-chain block; 21-coal sample adsorbing sphere;
21-1-the second entanglement; 21-2-coal sample; 22-iron wire;
23-uranium ore.
Embodiment
As shown in Figures 1 to 5, the present invention includes diffusion pipeline, the first double ladder 10-1, the second double ladder 10-2, base 8, wire rope 12, thermostatic oil bath 2, intelligent temperature scan tester table 3 and be arranged on the sampling rod 5 in described diffusion pipeline, described the first double ladder 10-1, the second double ladder 10-2 and base 8 are all fixed on basal plane, described base 8 is arranged on the below of the first double ladder 10-1 and is fixedly connected with the first double ladder 10-1, the top of described the first double ladder 10-1 is provided with fixed pulley 7, described diffusion pipeline passes the top that the first double ladder 10-1 and the second double ladder 10-2 and one end, bottom are supported on base 8, described diffusion pipeline and base 8 are rotationally connected, the bottom other end of described diffusion pipeline is supported on the second double ladder 10-2 above and can on the second double ladder 10-2, regulates Support Position, the other end top of described diffusion pipeline is connected with one end of wire rope 12, the other end of described wire rope 12 is walked around fixed pulley 7 and is fixed on base 8, described diffusion pipeline comprises outer tube 15 and inner tube 16, the two ends of described inner tube 16 all pass outer tube 15 and end is all connected with flange 17, the two ends of described outer tube 15 all seal with inner tube 16, between described outer tube 15 and inner tube 16, form annular housing 1, described sampling rod 5 is arranged in inner tube 16, a plurality of charcoal absorption balls 18 are installed on described sampling rod 5, described annular housing 1 is by the first connecting pipe 11-1 and the second connecting pipe 11-2 is communicated with thermostatic oil bath 2 and through built-in oil pump and the annular housing 1 formation closed circuit of thermostatic oil bath 2, in described inner tube 16, be provided with the temperature sensor 4 of putting coal sample temperature for detection of its inside, described temperature sensor 4 is connected with the terminals of intelligent temperature scan tester table 3 by higher temperature line and shows institute's detected temperatures by intelligent temperature scan tester table 3.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, the top of described base 8 is fixed with bearing seat 9, in described bearing seat 9, bearing 9-1 is installed, the quantity of described bearing seat 9 is that two and two bearing seat 9 front and back are symmetrical arranged, between two bearing 9-1, be connected with rotating shaft 9-2, the middle part of described rotating shaft 9-2 is fixed with Connection Block 9-3, and described Connection Block 9-3 is fixedly connected with outer tube 15.
As Fig. 1, Fig. 3, shown in Fig. 6 and Fig. 7, the front side of described the second double ladder 10-2 is fixed with a plurality of the first spacing ring 14-1 from top to bottom, the rear side of described the second double ladder 10-2 is fixed with a plurality of the second spacing ring 14-2 from top to bottom, described the first spacing ring 14-1 and the second spacing ring 14-2 are all arranged on the right part of the second double ladder 10-2, described the first spacing ring 14-1 is corresponding with the position of the second spacing ring 14-2, described outer tube 15 is supported on the second double ladder 10-2 by bracing frame 6, support frame as described above 6 be shaped as T font, the crossbeam two ends of support frame as described above 6 snap in respectively the first spacing ring 14-1 and the second spacing ring 14-2.A plurality of the first spacing ring 14-1 and a plurality of the second spacing ring 14-2 that for bracing frame 6, pass are set on the second double ladder 10-2, by 6 pairs of diffusion pipelines of bracing frame, apply anchorage force upwards, upper the diffusion pipeline after adjusting angle is stably fixed to the second double ladder 10-2, guarantee stability and the security of experimental provision.During actual fabrication, can, according to the anglec of rotation of diffusion pipeline, set up the first spacing ring 14-1 and the second spacing ring 14-2 of fair amount.
As shown in Figure 1, one end of described the first connecting pipe 11-1 is connected with the outlet of thermostatic oil bath 2, the other end of described the first connecting pipe 11-1 is connected with the import of annular housing 1, one end of described the second connecting pipe 11-2 is connected with the outlet of annular housing 1, the other end of described the second connecting pipe 11-2 is connected with the import of thermostatic oil bath 2, on described the first connecting pipe 11-1, be provided with the first valve 13-1, on described the second connecting pipe 11-2, be provided with the second valve 13-2.
As shown in Fig. 1 and Fig. 8, a plurality of coal sample adsorbing spheres 21 are also installed on described sampling rod 5, described coal sample adsorbing sphere 21 is arranged near charcoal absorption ball 18 positions, and a plurality of charcoal absorption balls 18 evenly arrange, and a plurality of coal sample adsorbing spheres 21 evenly arrange; Arranging of coal sample adsorbing sphere 21 improved experimental precision.
As shown in Fig. 1, Fig. 8, Fig. 9 and Figure 10, described charcoal absorption ball 18 and coal sample adsorbing sphere 21 are all fixed on sampling rod 5 by iron wire 22, described charcoal absorption ball 18 is comprised of the first entanglement 18-1 and the activated charcoal 18-2 being arranged in the first entanglement 18-1, and described coal sample adsorbing sphere 21 is comprised of the second entanglement 21-1 and the coal sample 21-2 being arranged in the second entanglement 21-1.
As shown in Figure 1, the quantity of described temperature sensor 4 is a plurality of, and a plurality of temperature sensors 4 are evenly arranged in inner tube 16, have improved temperature detection accuracy.
As shown in Figure 1, described wire rope 12 is fixed on base 8 by chain block 20, and one of them hook of described chain block 20 is connected with wire rope 12, and another hook of described chain block 20 is hooked on base 8; Chain block 20 can apply certain pulling force by 12 pairs of diffusion pipelines of wire rope, makes to spread pipeline certain angle that tilts.
In the present embodiment, described thermostatic oil bath 2 is GX-2050 type thermostatic oil bath, and described intelligent temperature scan tester table 3 is XMZ-J type the mathematical model instrument, is well positioned to meet experiment demand.
In the present embodiment, described the second connecting pipe 11-2 is stainless steel flexible hose, and described the first connecting pipe 11-1 is stainless steel flexible hose near a section of thermostatic oil bath 2, is convenient to connect and the angular adjustment of diffusion pipeline.
As shown in Figure 8, described sampling rod 5 is comprised of many metal rods 19, connects conveniently assemble and disassemble between adjacent metal rod 19 by engage thread.
In the present embodiment, described the first double ladder 10-1, the second double ladder 10-2 and base 8 are all fixed on basal plane by expansion bolt, and the connected mode of described base 8 and the first double ladder 10-1 is welding.
In the present embodiment, described outer tube 15 and inner tube 16 are stainless-steel tube, and described base 8 is stainless steel base, and described the first double ladder 10-1 and the second double ladder 10-2 are stainless steel double ladder, support frame as described above 6 is stainless steel bracing frame, makes that integral experiment device intensity is large and rigidity is high.
Principle of work of the present invention is: radon is the unique natural radioactive gas of nature, and it is extensively present in rock and soil.Underground coal spontaneous combustion causes that coal and rock temperature raises around, make the stable radioactive radon gas molecule of script in coal and rock start active movement, there is the process of constantly migration and absorption, and be subject to the impact of the factors such as temperature, coal and rock granularity, voidage, the severe degree of radon migration and absorption can produce different variations, therefore causes the uneven distribution of radon in coal and rock.Within a certain period of time, in coal and rock, the spatial relation of radon concentration and burning things which may cause a fire disaster presents certain correlativity and regularity.Therefore, work out underground coal fire and cause radioactive radon migration and Adsorption law, can be radon method detection concealed fire under coal mine certain theoretical foundation is provided.
The present invention utilizes radon need (uranium ore) simulation coal fire source, spreads the angle of pipeline by adjusting, realizes coal fire and causes radioactive radon migration and adsorption process in different directions in coal and rock.The present invention takes into full account the various factors that affects radon migration and absorption, and the variablees such as diffusion angle, temperature, coal and rock granularity, voidage can be set, and systematically studies comprehensively.By recording under different variable conditions, to spread in pipeline 1 and concentration and the adsorbance of radon need different distance place radon, matching draws migration and the mathematical adsorption model of radon, and then can obtain radon migration and Adsorption law, instructs in engineering practice.
The specific operation process that the present invention carries out diffusion experiment is: produce the first entanglement 18-1 and the second entanglement 21-1 of predetermined quantity, pack the activated charcoal 18-2 of equivalent in each first entanglement 18-1 into, form charcoal absorption ball 18; The coal sample 21-2 that packs equivalent in each second entanglement 21-1 into, form coal sample adsorbing sphere 21, then take a charcoal absorption ball 18 and a coal sample adsorbing sphere 21 is one group, with iron wire 22, according to default spacing, be banded in uniformly in groups on sampling rod 5, and by being from the close-by examples to those far off numbered from radon need distance, the sampling rod 5 that charcoal absorption ball 18 and coal sample adsorbing sphere 21 are installed is put into inner tube 16.Open the flange 17 of diffusion pipe ends, coal sample is packed in annular housing 1 (coal sample and the coal sample 21-2 that pack in annular housing 1 are same coal sample), temperature sensor 4 is imbedded in coal sample simultaneously, close flange 17, sealing diffusion pipeline.By thermostatic oil bath 2, set oil temperature, after oil is heated to assigned temperature, open built-in oil pump, the first valve 13-1 and the second valve 13-2 of thermostatic oil bath 2.Oil is circulated, and the coal sample in heating inner tube 16, reaches after assigned temperature until coal sample temperature, opens the left end flange 17 of diffusion pipeline, puts into uranium ore 23 as radon need, closes flange 17 with sealing diffusion pipeline.Pull chain block 20, diffusion pipeline is tilted to predetermined angular, the position of adjusting support frame 6, is inserted in corresponding the first spacing ring 14-1 and the second spacing ring 14-2 it, guarantees the bottom that is supported on diffusion pipeline that bracing frame 6 is firm.After diffusion absorption certain hour, to spread ducted coal sample and take out, take out sampling rod 5, the coal sample in the activated charcoal in charcoal absorption ball 18 and coal sample adsorbing sphere 21 will be taken out, be sealed in respectively in Special sample bottle, measure the amount of adsorbing radon in activated charcoal 18-2 and coal sample 21-2.As needed, in horizontal direction, measure the amount of adsorbing radon in activated charcoal 18-2 and coal sample 21-2, without the diffusion pipeline that tilts.
In experimentation, the intelligent temperature scan tester table 3 coal sample temperature that displays temperature sensor 4 detects in real time; A plurality of variablees of temperature, granularity and voidage that coal sample can be set in experiment, meet different experiment demands, press close to greatest extent physical condition under coal mine, simulate more accurately horizontal proliferation and the adsorption process of radioactive radon in mine.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation of above embodiment being done according to the technology of the present invention essence, all still belongs in the protection domain of technical solution of the present invention.
Claims (10)
1. radioactive radon multi-angle diffusion experiment device in a loose coal, it is characterized in that: comprise diffusion pipeline, the first double ladder (10-1), the second double ladder (10-2), base (8), wire rope (12), thermostatic oil bath (2), intelligent temperature scan tester table (3) and be arranged on the sampling rod (5) in described diffusion pipeline, described the first double ladder (10-1), the second double ladder (10-2) and base (8) are all fixed on basal plane, described base (8) is arranged on the below of the first double ladder (10-1) and is fixedly connected with the first double ladder (10-1), the top of described the first double ladder (10-1) is provided with fixed pulley (7), described diffusion pipeline passes the top that the first double ladder (10-1) and the second double ladder (10-2) and one end, bottom are supported on base (8), described diffusion pipeline and base (8) are rotationally connected, the bottom other end of described diffusion pipeline is supported on the second double ladder (10-2) above and can be in the upper Support Position that regulates of the second double ladder (10-2), the other end top of described diffusion pipeline is connected with one end of wire rope (12), the other end of described wire rope (12) is walked around fixed pulley (7) and is fixed on base (8), described diffusion pipeline comprises outer tube (15) and inner tube (16), the two ends of described inner tube (16) all pass outer tube (15) and end is all connected with flange (17), the two ends of described outer tube (15) all seal with inner tube (16), between described outer tube (15) and inner tube (16), form annular housing (1), described sampling rod (5) is arranged in inner tube (16), a plurality of charcoal absorption balls (18) are installed on described sampling rod (5), described annular housing (1) is by the first connecting pipe (11-1) and the second connecting pipe (11-2) is communicated with thermostatic oil bath (2) and through the built-in oil pump of thermostatic oil bath (2) and annular housing (1) formation closed circuit, in described inner tube (16), be provided with the temperature sensor (4) of putting coal sample temperature for detection of its inside, described temperature sensor (4) is connected with the terminals of intelligent temperature scan tester table (3) by higher temperature line and shows institute's detected temperatures by intelligent temperature scan tester table (3).
2. according to radioactive radon multi-angle diffusion experiment device in loose coal claimed in claim 1, it is characterized in that: the top of described base (8) is fixed with bearing seat (9), bearing (9-1) is installed in described bearing seat (9), the quantity of described bearing seat (9) is to be symmetrical arranged before and after two and two bearing seats (9), between two bearings (9-1), be connected with rotating shaft (9-2), the middle part of described rotating shaft (9-2) is fixed with Connection Block (9-3), and described Connection Block (9-3) is fixedly connected with outer tube (15).
3. according to radioactive radon multi-angle diffusion experiment device in the loose coal described in claim 1 or 2, it is characterized in that: the front side of described the second double ladder (10-2) is fixed with a plurality of the first spacing rings (14-1) from top to bottom, the rear side of described the second double ladder (10-2) is fixed with a plurality of the second spacing rings (14-2) from top to bottom, described the first spacing ring (14-1) and the second spacing ring (14-2) are all arranged on the right part of the second double ladder (10-2), described the first spacing ring (14-1) is corresponding with the position of the second spacing ring (14-2), described outer tube (15) is supported on the second double ladder (10-2) by bracing frame (6), support frame as described above (6) be shaped as T font, the crossbeam two ends of support frame as described above (6) snap in respectively the first spacing ring (14-1) and the second spacing ring (14-2).
4. according to radioactive radon multi-angle diffusion experiment device in the loose coal described in claim 1 or 2, it is characterized in that: one end of described the first connecting pipe (11-1) is connected with the outlet of thermostatic oil bath (2), the other end of described the first connecting pipe (11-1) is connected with the import of annular housing (1), one end of described the second connecting pipe (11-2) is connected with the outlet of annular housing (1), the other end of described the second connecting pipe (11-2) is connected with the import of thermostatic oil bath (2), on described the first connecting pipe (11-1), be provided with the first valve (13-1), on described the second connecting pipe (11-2), be provided with the second valve (13-2).
5. according to radioactive radon multi-angle diffusion experiment device in the loose coal described in claim 1 or 2, it is characterized in that: a plurality of coal sample adsorbing spheres (21) are also installed on described sampling rod (5), described coal sample adsorbing sphere (21) is arranged near charcoal absorption ball (18) position, a plurality of charcoal absorption balls (18) evenly arrange, and a plurality of coal sample adsorbing spheres (21) evenly arrange.
6. according to radioactive radon multi-angle diffusion experiment device in loose coal claimed in claim 5, it is characterized in that: described charcoal absorption ball (18) and coal sample adsorbing sphere (21) are all fixed on sampling rod (5) by iron wire (22), described charcoal absorption ball (18) is comprised of the first entanglement (18-1) and the activated charcoal (18-2) that is arranged in the first entanglement (18-1), and described coal sample adsorbing sphere (21) is by the second entanglement (21-1) and be arranged on the interior coal sample (21-2) of the second entanglement (21-1) and form.
7. according to radioactive radon multi-angle diffusion experiment device in the loose coal described in claim 1 or 2, it is characterized in that: the quantity of described temperature sensor (4) is a plurality of, a plurality of temperature sensors (4) are evenly arranged in inner tube (16).
8. according to radioactive radon multi-angle diffusion experiment device in the loose coal described in claim 1 or 2, it is characterized in that: described wire rope (12) is fixed on base (8) by chain block (20), one of them hook of described chain block (20) is connected with wire rope (12), and another hook of described chain block (20) is hooked on base (8).
9. according to radioactive radon multi-angle diffusion experiment device in the loose coal described in claim 1 or 2, it is characterized in that: described thermostatic oil bath (2) is GX-2050 type thermostatic oil bath, and described intelligent temperature scan tester table (3) is XMZ-J type the mathematical model instrument.
10. according to radioactive radon multi-angle diffusion experiment device in the loose coal described in claim 1 or 2, it is characterized in that: described the second connecting pipe (11-2) is stainless steel flexible hose, one section of the close thermostatic oil bath (2) of described the first connecting pipe (11-1) is stainless steel flexible hose.
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| CN201410431281.6A CN104155419B (en) | 2014-08-28 | 2014-08-28 | Experimental device for multi-angle diffusion of radioactive radon in loose coal |
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| CN104155419B CN104155419B (en) | 2015-07-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510205A (en) * | 2016-01-13 | 2016-04-20 | 西安科技大学 | Collection device of migration parameters of radon in coal-rock mass porous media |
| CN105675813A (en) * | 2016-01-19 | 2016-06-15 | 太原理工大学 | Experiment device for simulating radon conveying performed by geogas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105510205A (en) * | 2016-01-13 | 2016-04-20 | 西安科技大学 | Collection device of migration parameters of radon in coal-rock mass porous media |
| CN105675813A (en) * | 2016-01-19 | 2016-06-15 | 太原理工大学 | Experiment device for simulating radon conveying performed by geogas |
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| CN104155419B (en) | 2015-07-15 |
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