CN220894301U - Device is explored to spontaneous combustion gas concentration in loose coal body - Google Patents
Device is explored to spontaneous combustion gas concentration in loose coal body Download PDFInfo
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- CN220894301U CN220894301U CN202321885446.8U CN202321885446U CN220894301U CN 220894301 U CN220894301 U CN 220894301U CN 202321885446 U CN202321885446 U CN 202321885446U CN 220894301 U CN220894301 U CN 220894301U
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- 239000003245 coal Substances 0.000 title claims abstract description 48
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 29
- 239000000567 combustion gas Substances 0.000 title claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 68
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 46
- 239000010935 stainless steel Substances 0.000 claims abstract description 46
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 239000000523 sample Substances 0.000 claims abstract description 31
- 238000005070 sampling Methods 0.000 claims abstract description 21
- 238000007689 inspection Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 3
- 239000010959 steel Substances 0.000 claims 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012031 short term test Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a device for probing the concentration of spontaneous combustion gas in loose coal, which comprises a gas inspection box, wherein an automatic sampling box is arranged on one side of the gas inspection box and is communicated with the gas inspection box through a gas guide hose, a stainless steel pipe is connected with a gas inlet of the automatic sampling box through the gas guide hose, a pressure detection probe is arranged at a port of the stainless steel pipe through a fixed component in the stainless steel pipe, a plurality of second gas guide holes are distributed on the end face of the pressure detection probe, two wear-resistant transmission blocks are clamped on the outer side of the pressure detection probe, a gas guide cone head is arranged at the end head of the pressure detection probe, a conical puncture head is embedded on the outer side of the gas guide cone head, and a plurality of first gas guide holes are distributed on the outer surface of the gas guide cone head. The utility model has reasonable structural design, convenient carrying, high detection efficiency, low detection cost, convenient use and convenient management, and is convenient for realizing the rapid detection of the concentration of spontaneous combustion gas by carrying out negative pressure air suction on the inside of coal.
Description
Technical Field
The utility model relates to the technical field of coal detection, in particular to a device for detecting the concentration of spontaneous combustion gas in loose coal.
Background
The detection of spontaneous combustion fire index gas of coal mine coal-proof layer is generally carried out in the air flow of roadway space, and the detection result of the fire index gas often has a larger difference with the key parameters of the special place where spontaneous combustion ignition is easy to occur. For example, in the coal discharging port of the fully mechanized caving face, the loose roof caving area of the tunneling roadway and other loose coal bodies, hidden danger of spontaneous combustion and ignition easily occurs, and the condition detection of spontaneous combustion gas is needed to be carried out in the coal. In the extremely easy spontaneous combustion ignition mines, spontaneous combustion tends to exist in coal seams of coal mines, the spontaneous combustion ignition period is several months, the shortest ignition period is several tens of days, and the spontaneous combustion ignition of the coal seams is very serious.
According to the method, gel or water is injected into a fireproof collision pipe, the fireproof collision pipe is required to be arranged at intervals of 3 meters in a coal roadway section, the fireproof collision pipe is required to be arranged at intervals of 5 meters in a coal roadway coal passing section, the fireproof pipe is arranged at intervals of 3 meters in a goaf (roadway) section, the number of the fireproof collision pipes is increased according to the actual situation of the site, and a fireproof observation hole is reserved.
The fireproof pipe collision method is generally pre-buried, is inconvenient to carry and use everywhere, wastes time and energy in the use process, is low in detection efficiency, can not repeatedly use the fireproof pipe collision, is high in detection cost, and is inconvenient to manage.
Disclosure of utility model
The utility model aims to overcome the defects and the shortcomings of the prior art, and provides a device for detecting the concentration of spontaneous combustion gas in loose coal, which solves various problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a device is explored to spontaneous combustion gas concentration in loose coal body, includes the gas inspection box, the automatic sampling box is installed to one side of gas inspection box, and communicates through the air guide hose between, the air inlet of automatic sampling box is connected with the stainless steel pipe through the air guide hose, the pressure test probe is installed through the fixed subassembly in the stainless steel pipe to the stainless steel pipe port, it has a plurality of second air vents to distribute on the terminal surface of pressure test probe, two wear-resisting transfer blocks are blocked to the outside of pressure test probe, and the air guide cone head is installed to pressure test probe's end department, the outside of air guide cone head is inlayed and is equipped with the toper puncture head, it has a plurality of first air vents to distribute on the surface of air guide cone head.
The automatic sampling box is characterized in that an air pump and a battery are arranged on the inner side of the automatic sampling box, the air pump is electrically connected with the battery, an air inlet and an air outlet are formed in the air pump, and two air guide hoses are connected with the air inlet and the air outlet of the air pump in the automatic sampling box.
The stainless steel pipe is connected with threaded connection rings at two ends, an anti-skid groove is arranged on the outer surface of the threaded connection rings, and the stainless steel pipe is connected with the air guide cone head through the threaded connection rings.
The fixing assembly comprises a wire installation strip penetrating through the stainless steel pipe, the outer side of the wire installation strip is clamped into the stainless steel pipe through the retainer, and one end of the wire installation strip is fixedly connected with the pressure detection probe.
The inner wall of the stainless steel tube is provided with a heat insulation layer, the inner side surface of the heat insulation layer is in guide fit with the outer end surface of the branch of the retainer, and the inner side of the wire mounting strip is provided with an electric core.
The inner side of the pressure detection probe is provided with a pressure sensor, one ends of the two wear-resistant transmission blocks penetrate through the air guide cone head and the pressure detection probe to be in contact with the pressure sensor, and the pressure sensor is electrically connected with the battery cell.
The cross section shape of the conical puncture head and the air guide conical head is conical, and the stainless steel tube is in through connection with the inside of the air guide conical head through a second air guide hole.
Compared with the prior art, the utility model has the beneficial effects that:
The gas detector is arranged on the inner side of the gas detection box, the air pump and the battery are arranged on the inner side of the automatic sampling box, the detection integrated equipment is simple in structure, the stainless steel pipe is connected with the gas guide cone head through the threaded connecting ring, and the gas guide cone head is convenient to disassemble, assemble and clean through the threaded connecting ring, and is convenient to disassemble, assemble and carry; the first air guide hole can be protected through the conical puncture head in the insertion process, the blockage caused by the coal particles entering through the inner side of the first air guide hole is avoided, and gaps exist between the air guide conical head and the inner side of the conical puncture head, so that the stainless steel pipe can conveniently extract gas in the coal through the first air guide hole; through carrying out negative pressure to coal inside and extracting, be convenient for realize the short-term test to the concentration of spontaneous combustion gas, detection efficiency is high.
The utility model is convenient to extract the gas in the loose coal body through the first gas vent, the second gas vent and the stainless steel tube, and guide the gas to the inner side of the gas inspection box through the gas guide hose, so that the gas type and the gas concentration can be detected through the gas detector, the lead installation strip is convenient to install through the heat insulation layer and the retainer, and the stainless steel tube is prevented from being contacted with the lead installation strip; the pressure sensor is arranged on the inner side of the pressure detection probe, so that the pressure sensor is connected with the loose coal body through the wear-resistant transmission block, and then the pressure sensor can monitor the internal pressure of the loose coal body through the wear-resistant transmission block, so that more information can be conveniently obtained, and the management is convenient.
In conclusion, the utility model has reasonable structural design, is convenient to carry, is convenient to realize the rapid detection of the concentration of spontaneous combustion gas by carrying out negative pressure air suction on the inside of coal, has high detection efficiency, can realize repeated use, has low detection cost, is convenient to use and is convenient to manage.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of a partial structure of a stainless steel pipe according to the present utility model;
FIG. 3 is a schematic view of a partial cross-sectional structure of an air guide cone head according to the present utility model;
FIG. 4 is a schematic view showing a partial sectional structure of a stainless steel pipe according to the present utility model;
FIG. 5 is a schematic view of a partial cross-sectional structure of a conical piercing head according to the utility model.
In the figure: 1. a gas inspection box; 2. an automatic sampling box; 3. stainless steel tube; 4. an air guide hose; 5. a threaded connection ring; 6. a conical piercing head; 7. wear-resistant transfer blocks; 8. an air guide cone head; 9. a pressure detection probe; 10. a wire mounting bar; 11. a first air vent; 12. a thermal insulation layer; 13. a retainer; 14. and a second air guide hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Please refer to fig. 1 to 5;
An embodiment of the present utility model provides: the utility model provides a spontaneous combustion gas concentration surveys device in loose coal, including gas inspection box 1, automatic sampling box 2, stainless steel pipe 3 and air guide hose 4, automatic sampling box 2 is installed to one side of gas inspection box 1, stainless steel pipe 3 is installed to one side of automatic sampling box 2, threaded connection ring 5 is all installed at the both ends of stainless steel pipe 3, gas inspection box 1 is connected through air guide hose 4 with automatic sampling box 2 and one of them threaded connection ring 5, the inboard of gas inspection box 1 is equipped with the gas detector, one end of one of them air guide hose 4 runs through gas inspection box 1 and pegs graft to the inboard of gas detector, the inboard of automatic sampling box 2 is equipped with air pump and battery, the air pump passes through electric connection with the battery, two air guide hose 4 run through automatic sampling box 2 and pass through air inlet and gas outlet and air pump connection;
The inner wall of the stainless steel pipe 3 is provided with a heat insulation layer 12, a wire installation strip 10 penetrates through the stainless steel pipe 3, the wire installation strip 10 is supported and erected in the stainless steel pipe 3 through a retainer 13 and is in guide fit with the inner side wall of the heat insulation layer 12, one end of the wire installation strip 10 is provided with a pressure detection probe 9, one end of the pressure detection probe 9 is provided with a plurality of second air guide holes 14, two wear-resistant transmission blocks 7 are arranged on the outer side of the pressure detection probe 9, one air guide cone head 8 is arranged on the outer side of the two wear-resistant transmission blocks 7, the stainless steel pipe 3 is connected with the air guide cone head 8 through a threaded connection ring 5, the air guide cone head 8 is convenient to disassemble, assemble and clean through the threaded connection ring 5, the outer side of the air guide cone head 8 is provided with a conical puncture head 6, and the outer surface of the air guide cone head 8 is provided with a plurality of first air guide holes 11;
The whole negative pressure air suction is carried out on the inside of coal, so that the quick detection of the concentration of spontaneous combustion gas is conveniently realized, the repeated use can be realized, and the use is convenient.
Wherein, both ends of the stainless steel tube 3 are connected with the threaded connection ring 5 through threads, the outer surface of the threaded connection ring 5 is provided with an anti-slip groove, and the stainless steel tube 3 is connected with the air guide cone head 8 through the threaded connection ring 5.
Through adopting above-mentioned technical scheme, be convenient for carry out dismouting and clean operation to air guide cone head 8 through threaded connection ring 5.
The stainless steel tube 3 is connected with the wire installation strip 10 through the heat insulation layer 12 and the retainer 13, the heat insulation layer 12 is fixedly bonded with the retainer 13, an electric core is arranged on the inner side of the wire installation strip 10, a pressure sensor is arranged on the inner side of the pressure detection probe 9, one ends of the two wear-resistant transmission blocks 7 penetrate through the air guide cone head 8 and the pressure detection probe 9 to be in contact with the pressure sensor, and the pressure sensor is electrically connected with the electric core.
Through adopting above-mentioned technical scheme for pressure sensor passes through wear-resisting transfer block 7 with the loose coal body and is connected, and then pressure sensor can monitor the internal pressure of loose coal body through wear-resisting transfer block 7, is convenient for obtain more information.
Wherein, the cross section shape of the conical puncture head 6 and the air guide conical head 8 is conical, and the stainless steel tube 3 and the inside of the air guide conical head 8 are connected in a penetrating way through the second air guide hole 14.
Through adopting above-mentioned technical scheme, there is the gap air guide conical head 8 and the inboard of toper puncture head 6 for can protect first air vent 11 through toper puncture head 6 in the insertion process, avoid coal granule to get into 8 inboard through first air vent 11 and cause the jam.
When the device for probing the concentration of spontaneous combustion gas in the loose coal body is used, the gas detector is arranged on the inner side of the gas detection box 1, the gas pump and the battery are arranged on the inner side of the automatic sampling box 2, the gas detector, the gas pump and one of the threaded connection rings 5 are connected through the gas guide hose 4, the power supply is connected, the stainless steel pipe 3 and the gas guide cone head 8 are connected through the threaded connection ring 5, the conical puncture head 6 is sleeved on the outer side of one end, far away from the stainless steel pipe 3, of the gas guide cone head 8, one end, provided with the conical puncture head 6, of the stainless steel pipe 3 is inserted into the loose coal body, the first gas guide hole 11 is arranged on the outer side of the gas guide cone head 8, so that the first gas guide hole 11 can be protected through the conical puncture head 6 in the insertion process, the inner side, where coal particles enter 8 through the first gas guide hole 11, is prevented from being blocked, a gap exists between the gas guide cone head 8 and the inner side of the conical puncture head 6, starting the air pump to enable the air pump to extract the inside of the stainless steel tube 3, further generating negative pressure on the inner side of the stainless steel tube 3, enabling the air in the loose coal body to be conveniently extracted through the first air guide hole 11, the second air guide hole 14 and the stainless steel tube 3 and guided to the inner side of the gas inspection box 1 through the air guide hose 4, further detecting the type and the concentration of the air through the gas detector, enabling the stainless steel tube 3 to be connected with the retainer 13 through the heat insulation layer 12, enabling the lead installation strip 10 to be conveniently installed through the heat insulation layer 12 and the retainer 13, avoiding the contact of the stainless steel tube 3 with the lead installation strip 10, arranging the pressure sensor on the inner side of the pressure detection probe 9, enabling the pressure sensor to be connected with the loose coal body through the wear-resistant transmission block 7, and enabling the pressure sensor to monitor the internal pressure of the loose coal body through the wear-resistant transmission block 7, facilitating more information.
When the device is specifically applied, a hollow high-strength wire-carrying port with the outer diameter of 15mm and the inner diameter of 11mm can be connected with a stainless steel pipe in a prolonged mode, each section is 1.5 meters, and the exploration depth is mainly considered; the front end of the first section of measuring probe rod is sharpened and an air inlet hole is reserved, so that the probe rod can be conveniently and smoothly inserted into the loose coal body, and the probe rod can be used for accurately probing the gas related to the loose coal body at the top end; the tail end air outlet hole of the probe rod is connected with the air inlet hole of the automatic sampler through a connecting hose, the air outlet hole of the automatic sampler is connected with the unidirectional air inlet hole of the gas check box through the connecting hose, a carbon monoxide portable instrument or other toxic and harmful gas detection instruments are placed in the gas check box for measurement, the sealing and airtight performance of each connecting device are ensured, collected gas samples are discharged through the unidirectional air outlet hole of the gas check box after being measured by the gas check box, and the accurate exploration and collection of the natural ignition index gas of the loose coal body are completed.
The whole structure is convenient to carry, is simple to operate, is safe and reliable, can directly probe the condition of relevant gas in the loose coal body, and judges whether spontaneous combustion and ignition risks exist according to measured data.
Meanwhile, the gas-liquid separator can be used for accurately collecting fire index gas in special places and accurately analyzing the fire index gas by using a gas chromatograph. The first-hand fireproof data is mastered by collecting and detecting key parameters of the fireproof index gas at the special detection site, so that an advanced prevention effect is achieved for eliminating the occurrence of spontaneous combustion and ignition accidents of the coal seam at the special site.
Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.
Therefore, the above description is not intended to limit the scope of the application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (7)
1. The utility model provides a device is explored to spontaneous combustion gas concentration in loose coal body which characterized in that: including gas inspection box (1), automatic sampling box (2) are installed to one side of gas inspection box (1), and communicate through air guide hose (4) between, the air inlet of automatic sampling box (2) is connected with nonrust steel pipe (3) through air guide hose (4), pressure detection probe (9) are installed through the fixed subassembly in nonrust steel pipe (3) to nonrust steel pipe (3) port, it has a plurality of second air vent (14) to distribute on the terminal surface of pressure detection probe (9), two wear-resisting transfer pieces (7) are installed to the outside card of pressure detection probe (9), and air guide cone (8) are installed to the end department of pressure detection probe (9), the outside of air guide cone (8) is inlayed and is equipped with toper puncture head (6), it has a plurality of first air vents (11) to distribute on the surface of air guide cone (8).
2. The apparatus for detecting the concentration of spontaneous combustion gas in a bulk coal as claimed in claim 1, wherein: the automatic sampling box is characterized in that an air pump and a battery are arranged on the inner side of the automatic sampling box (2), the air pump and the battery are electrically connected, the air pump is provided with an air inlet and an air outlet, and the two air guide hoses (4) are connected with the air inlet and the air outlet of the air pump in the automatic sampling box (2).
3. The apparatus for detecting the concentration of spontaneous combustion gas in a bulk coal as claimed in claim 1, wherein: the stainless steel pipe (3) is characterized in that threaded connection rings (5) are connected to the two ends of the stainless steel pipe (3), an anti-slip groove is formed in the outer surface of the threaded connection rings (5), and the stainless steel pipe (3) is connected with an air guide cone head (8) through the threaded connection rings (5).
4. The apparatus for detecting the concentration of spontaneous combustion gas in a bulk coal as claimed in claim 1, wherein: the fixing assembly comprises a wire installation strip (10) penetrating through the stainless steel pipe (3), the outer side of the wire installation strip (10) is clamped into the stainless steel pipe (3) through a retainer (13), and one end of the wire installation strip (10) is fixedly connected with the pressure detection probe (9).
5. The apparatus for detecting the concentration of spontaneous combustion gas in a bulk coal as claimed in claim 4, wherein: the inner wall of the stainless steel tube (3) is provided with a heat insulation layer (12), the inner side surface of the heat insulation layer (12) is in guide fit with the outer end surface of the branch of the retainer (13), and the inner side of the wire mounting strip (10) is provided with an electric core.
6. The apparatus for detecting the concentration of spontaneous combustion gas in a bulk coal as claimed in claim 5, wherein: the inner side of the pressure detection probe (9) is provided with a pressure sensor, one ends of the two wear-resistant transmission blocks (7) penetrate through the air guide cone head (8) and the pressure detection probe (9) to be in contact with the pressure sensor, and the pressure sensor is electrically connected with the battery cell.
7. The apparatus for detecting the concentration of spontaneous combustion gas in a bulk coal as claimed in claim 1, wherein: the cross-sectional shapes of the conical puncture head (6) and the air guide conical head (8) are conical, and the stainless steel tube (3) is in through connection with the inside of the air guide conical head (8) through a second air guide hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321885446.8U CN220894301U (en) | 2023-07-18 | 2023-07-18 | Device is explored to spontaneous combustion gas concentration in loose coal body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321885446.8U CN220894301U (en) | 2023-07-18 | 2023-07-18 | Device is explored to spontaneous combustion gas concentration in loose coal body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220894301U true CN220894301U (en) | 2024-05-03 |
Family
ID=90867529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321885446.8U Active CN220894301U (en) | 2023-07-18 | 2023-07-18 | Device is explored to spontaneous combustion gas concentration in loose coal body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220894301U (en) |
-
2023
- 2023-07-18 CN CN202321885446.8U patent/CN220894301U/en active Active
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