CN112150746A - Self-explosion monitoring and early warning device and method for vulcanized mine explosive - Google Patents
Self-explosion monitoring and early warning device and method for vulcanized mine explosive Download PDFInfo
- Publication number
- CN112150746A CN112150746A CN202011055766.1A CN202011055766A CN112150746A CN 112150746 A CN112150746 A CN 112150746A CN 202011055766 A CN202011055766 A CN 202011055766A CN 112150746 A CN112150746 A CN 112150746A
- Authority
- CN
- China
- Prior art keywords
- blast hole
- data
- temperature
- early warning
- mine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002360 explosive Substances 0.000 title claims abstract description 45
- 238000004880 explosion Methods 0.000 title claims abstract description 35
- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 27
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 48
- 230000000007 visual effect Effects 0.000 claims abstract description 23
- 238000007405 data analysis Methods 0.000 claims abstract description 22
- 230000007613 environmental effect Effects 0.000 claims abstract description 20
- 238000011156 evaluation Methods 0.000 claims abstract description 17
- 230000002269 spontaneous effect Effects 0.000 claims abstract description 17
- 238000009423 ventilation Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 9
- 230000017525 heat dissipation Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 26
- 239000012530 fluid Substances 0.000 claims description 14
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 238000002076 thermal analysis method Methods 0.000 claims description 9
- 238000009529 body temperature measurement Methods 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- 238000005065 mining Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 229910052683 pyrite Inorganic materials 0.000 description 4
- 239000011028 pyrite Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 235000011274 Benincasa cerifera Nutrition 0.000 description 1
- 244000036905 Benincasa cerifera Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052960 marcasite Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 229910052952 pyrrhotite Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/08—Actuation involving the use of explosive means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B31/00—Predictive alarm systems characterised by extrapolation or other computation using updated historic data
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Computing Systems (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention provides a monitoring and early warning device and a method for spontaneous explosion of a sulfide mine explosive, wherein the monitoring and early warning device comprises a data analysis device, a sensor assembly, a fan and an audible and visual alarm, wherein the sensor assembly, the fan and the audible and visual alarm are connected with the data processing device; the wind power output end of the fan is positioned in the blast hole; the sensor assembly comprises an infrared temperature measuring sensor module and an air pressure sensor module which are arranged in the blast hole; the data analysis device monitors environmental parameters inside the blast hole through the sensor assembly, safety evaluation is carried out on the blast hole according to the environmental parameter data, and when the evaluation result shows that the self-explosion risk exists, the single chip microcomputer controls the fan and the acousto-optic alarm to respectively carry out ventilation and heat dissipation on the blast hole and send acousto-optic alarm information; the method can evaluate the explosive self-explosion risk in the blast hole of the sulfide mine through a plurality of environmental factors.
Description
Technical Field
The invention relates to the technical field of mining, in particular to a sulfide mine explosive spontaneous explosion monitoring and early warning device and method.
Background
Sulfide ores are an aggregate of many sulfur-containing metal species, the main component of which is pyrite. The pyrite is an important pyrite resource for industrial development and utilization, and comprises three minerals with the same components, namely pyrite, marcasite and pyrrhotite. With the recovery and development of national economy, the demand of China for sulfur ore resources increases year by year, and shallow mineral resources are gradually depleted. Meanwhile, the deep exploration value of more than 160 existing mines in China exceeds one billion yuan, and deep mining is inevitable for the development of mining industry.
The explosive self-explosion accident is one of the serious disasters which can be faced by the deep mining of the sulfide mine. In the mining operation of the sulfide ore, explosive is filled in blast holes for blasting mining, the temperature in the blast holes is mainly acted by heat sources in the aspects of oxidization heat release of the sulfide ore, hydration heat generation of cement and terrestrial heat, and when the heat in the blast holes is accumulated to reach the critical detonation point temperature of the explosive, the explosive can be induced to explode in advance, so that the safe mining of the ore is seriously influenced.
Parameters such as temperature, pressure and the like in the sulfide mine blast hole can generate a series of changes after charging, and the change of the parameters can effectively reflect the state in the blast hole. Therefore, the development of the sulfide mine explosive spontaneous explosion monitoring and prevention and control system monitors the state of the sulfide mine explosive after charging in the blast hole, can make preventive measures in advance, effectively reduces the possibility of spontaneous explosion of the sulfide mine explosive, avoids the danger of artificial monitoring, and provides safety guarantee for sulfide mine exploitation.
Disclosure of Invention
The invention provides a monitoring and early warning device and a monitoring and early warning method for spontaneous explosion of a sulfide mine explosive, which can evaluate the risk of spontaneous explosion of the explosive in a blast hole of a sulfide mine through a plurality of environmental factors.
The invention adopts the following technical scheme.
The monitoring and early warning device for the spontaneous explosion of the vulcanized mine explosive comprises a data analysis device, a sensor assembly and a fan, wherein the sensor assembly and the fan are connected with the data processing device; the wind power output end of the fan is positioned in the blast hole; the sensor assembly comprises an infrared temperature measuring sensor module and an air pressure sensor module which are arranged in the blast hole; the data analysis device monitors environmental parameters inside the blast hole through the sensor assembly, safety evaluation is conducted on the blast hole according to the environmental parameter data, and when the evaluation result shows that the self-explosion risk exists, the single chip microcomputer controls the fan to conduct ventilation and heat dissipation on the blast hole.
The blast hole is a blind hole; the explosive is an emulsion explosive with plasticity; when the explosive is loaded in the blast hole, the bottom end of the blast hole is sealed to form a detection cavity.
The sensor assembly is arranged in a detection cavity at the bottom end of the blast hole; the environmental parameters inside the blast hole comprise temperature and pressure;
the fan is arranged outside the blast hole and inputs flowing air into the blast hole through the ventilation pipeline arranged at the blast hole so as to ventilate and radiate the blast hole.
The data processing device is a single chip microcomputer arranged outside the blast hole; the single chip microcomputer is provided with a display screen capable of displaying the temperature and the pressure inside the blast hole; the single chip microcomputer is also connected with an audible and visual alarm, and when the safety evaluation result of the single chip microcomputer on the blast hole shows that the self-explosion risk exists, the single chip microcomputer controls the audible and visual alarm to send alarm information;
an infrared sensor, an amplifier and an A/D (analog/digital) converter are arranged in the infrared temperature measurement sensor module;
and an air pressure sensor and an A/D analog-to-digital converter are arranged in the air pressure sensor module.
The early warning method uses the self-explosion monitoring and early warning device for the sulfide mine explosive, and when a data analysis device carries out safety evaluation on a blast hole, temperature data and pressure data in a detection cavity in the blast hole are used as safety evaluation bases; when the temperature data in the detection cavity exceeds a temperature threshold value or the pressure data exceeds a pressure threshold value, the self-explosion risk is evaluated.
The temperature threshold and the pressure threshold are obtained by software simulation of a temperature field and a fluid field of a blast hole of a sulfide mine by analysis software.
The software simulation method comprises the following steps;
step A1, examining the site of a blast hole of a sulfide mine, and collecting mine data;
a2, respectively establishing a temperature field and a fluid field three-dimensional model of a charging blast hole and dividing grids through a thermal analysis module and a flow field analysis module of analysis software;
step A3, respectively determining initial conditions and boundary conditions of a temperature field and a fluid field, and sequentially inputting actual thermal parameters and fluid field parameters of the sulfide mine according to the operation steps of a thermal analysis module and a flow field analysis module;
and A4, setting solving parameters of a thermal analysis module and a flow field analysis module, generating a blast hole model for solving, and checking the convergence condition of the solving result, wherein the solving result of the blast hole model for solving comprises visual data of a temperature cloud chart and visual data of a pressure cloud chart of the blast hole model.
In step a1, if the sulfide mine is a special mine for which survey data is available, the mine data may be taken with the existing survey data.
The analysis software is ANSYS software.
The monitoring and early warning method can take ventilation and cooling measures to the blast hole by a fan at the initial stage of temperature rise in the blast hole, prevent and control the phenomenon of overhigh temperature of an explosive layer in the blast hole in advance, and then collect air pressure data to judge whether the reason of overhigh temperature is caused by environmental temperature or oxidation and heat release of sulfide ores;
the pressure data is air pressure data of a blast hole detection cavity;
when the blower is used for ventilating and cooling the blast hole, the data analysis device continues to collect temperature data and pressure data of the blast hole, if the pressure data still continuously rises and is larger than a pressure threshold value, the data analysis device judges that the reason of abnormal temperature of the blast hole is oxidation heat release of sulfide ore, and the audible and visual alarm sends alarm information to prompt relevant responsible personnel to manually process the blast hole;
the air pipe in the big gun hole can extend into the detection cavity when being laid, and the data analysis device can release the air pressure in the detection cavity through the air pipe before monitoring the detection cavity so as to initialize the monitoring data.
The method has the advantages that the internal state of the blast hole is prevented from being judged by single factor, ventilation and cooling measures are taken at the initial stage of temperature rise in the blast hole, the overhigh temperature of the explosive layer in the blast hole is prevented and controlled in advance, and then air pressure data is collected to judge whether the reason of the overhigh temperature is caused by the environmental temperature or the oxidation and heat release of sulfide ore. In addition, numerical presetting can be performed for a special mine through a numerical simulation technology. Firstly, simulating a blast hole temperature field and a fluid field by using ANSYS software to obtain temperature and pressure threshold data inside the blast hole; and secondly, taking the threshold data as preset warning data of the monitoring prevention and control system. Therefore, the mine safety monitoring system has pertinence, and can simulate adaptive preset values for mines of different types and different internal structures, so that accurate prevention and control are achieved.
In the implementation of the invention, the temperature and pressure data in the blast hole (gas generated in the oxidation process of the sulfide ore) can be monitored in real time to realize ventilation cooling and audible and visual alarm, and whether the overhigh temperature of the blast hole is caused by overhigh environmental temperature or the oxidation exothermic reaction of the sulfide ore can be judged, so that reference is provided for further adopting treatment measures.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic diagram of a field implementation of the present invention;
FIG. 2 is a schematic diagram of a temperature cloud of a model of a borehole;
FIG. 3 is a schematic diagram of a pressure cloud of a model of a borehole;
FIG. 4 is a schematic flow diagram of the present invention;
in the figure: 1-an infrared temperature sensor module; 2-an air pressure sensor module; 3-ventilating duct; 4-a circuit wiring board; 5-a data analysis device; 6-audible and visual alarm; 7-a fan;
100-blast hole; 101-detection chamber.
Detailed Description
As shown in fig. 1-4, the monitoring and early warning device for spontaneous explosion of the sulfide mine explosive comprises a data analysis device, a sensor assembly connected with the data processing device and a fan 7; the wind power output end of the fan is positioned in the blast hole 100; the sensor assembly comprises an infrared temperature measuring sensor module 1 and an air pressure sensor module 2 which are arranged in the blast hole; the data analysis device monitors environmental parameters inside the blast hole through the sensor assembly, safety evaluation is conducted on the blast hole according to the environmental parameter data, and when the evaluation result shows that the self-explosion risk exists, the single chip microcomputer controls the fan to conduct ventilation and heat dissipation on the blast hole.
The blast hole is a blind hole; the explosive is an emulsion explosive with plasticity; when the explosive is loaded in the blast hole, the bottom end of the blast hole is closed to form a detection cavity 101.
The sensor assembly is arranged in a detection cavity at the bottom end of the blast hole; the environmental parameters inside the blast hole comprise temperature and pressure;
the fan is arranged outside the blast hole and inputs flowing air into the blast hole through the ventilating duct 3 arranged at the blast hole so as to ventilate and radiate the blast hole.
The data processing device is a single chip microcomputer arranged outside the blast hole; the single chip microcomputer is provided with a display screen capable of displaying the temperature and the pressure inside the blast hole; the single chip microcomputer is also connected with the audible and visual alarm 6, and when the safety evaluation result of the single chip microcomputer on the blast hole shows that the self-explosion risk exists, the single chip microcomputer controls the audible and visual alarm to send alarm information;
an infrared sensor, an amplifier and an A/D (analog/digital) converter are arranged in the infrared temperature measurement sensor module;
and an air pressure sensor and an A/D analog-to-digital converter are arranged in the air pressure sensor module.
The early warning method uses the self-explosion monitoring and early warning device for the sulfide mine explosive, and when a data analysis device carries out safety evaluation on a blast hole, temperature data and pressure data in a detection cavity in the blast hole are used as safety evaluation bases; when the temperature data in the detection cavity exceeds a temperature threshold value or the pressure data exceeds a pressure threshold value, the self-explosion risk is evaluated.
The temperature threshold and the pressure threshold are obtained by software simulation of a temperature field and a fluid field of a blast hole of a sulfide mine by analysis software.
The software simulation method comprises the following steps;
step A1, examining the site of a blast hole of a sulfide mine, and collecting mine data;
a2, respectively establishing a temperature field and a fluid field three-dimensional model of a charging blast hole and dividing grids through a thermal analysis module and a flow field analysis module of analysis software;
step A3, respectively determining initial conditions and boundary conditions of a temperature field and a fluid field, and sequentially inputting actual thermal parameters and fluid field parameters of the sulfide mine according to the operation steps of a thermal analysis module and a flow field analysis module;
and A4, setting solving parameters of a thermal analysis module and a flow field analysis module, generating a blast hole model for solving, and checking the convergence condition of the solving result, wherein the solving result of the blast hole model for solving comprises visual data of a temperature cloud chart and visual data of a pressure cloud chart of the blast hole model.
In step a1, if the sulfide mine is a special mine for which survey data is available, the mine data may be taken with the existing survey data.
The analysis software is ANSYS software.
The monitoring and early warning method can take ventilation and cooling measures to the blast hole by a fan at the initial stage of temperature rise in the blast hole, prevent and control the phenomenon of overhigh temperature of an explosive layer in the blast hole in advance, and then collect air pressure data to judge whether the reason of overhigh temperature is caused by environmental temperature or oxidation and heat release of sulfide ores;
the pressure data is air pressure data of a blast hole detection cavity;
when the blower is used for ventilating and cooling the blast hole, the data analysis device continues to collect temperature data and pressure data of the blast hole, if the pressure data still continuously rises and is larger than a pressure threshold value, the data analysis device judges that the reason of abnormal temperature of the blast hole is oxidation heat release of sulfide ore, and the audible and visual alarm sends alarm information to prompt relevant responsible personnel to manually process the blast hole;
the air pipe in the big gun hole can extend into the detection cavity when being laid, and the data analysis device can release the air pressure in the detection cavity through the air pipe before monitoring the detection cavity so as to initialize the monitoring data.
Example (b):
fig. 1 is a schematic diagram of the field layout of the present invention. An infrared temperature sensor module and an air pressure sensor module are arranged in a detection cavity at the bottom end of a blast hole, a circuit wiring board is arranged on the right straight wall of the blast hole, the infrared temperature sensor module and the air pressure sensor module are connected with a singlechip processor through the circuit wiring board, and the singlechip processes data and displays the actually measured temperature and air pressure; the single chip microcomputer is connected with the ventilation control system and the audible and visual alarm, and can control the fan to supply air to the bottom of the blast hole for heat dissipation through a small ventilating duct arranged on the left straight wall of the blast hole; the single chip microcomputer can transmit signals to the audible and visual alarm, and the audible and visual alarm is started to realize alarming.
As shown in fig. 2 and 3, the schematic diagrams of the temperature and pressure cloud of the blast hole model of the invention are shown. An ANSYS software is used for simulating a temperature and pressure cloud picture of a certain stope blast hole 24 of the wax gourd mountain copper mine in Anhui province. According to the temperature field simulation result, the temperature of the explosive layer in the blast hole reaches 42.916 ℃ after 24 hours, so that the preset temperature value is set to be 43 ℃; from the results of the fluid field simulation, the pressure of the explosive layer inside the blast hole reached 9.074Pa after 24 hours, and therefore the pressure preset value was set to 9.1 Pa.
FIG. 4 is a schematic flow chart of the present invention. After the system is electrified, the infrared temperature sensor module and the air pressure sensor module collect temperature and pressure data at the bottom of a blast hole, and data acquisition and input signal conversion are achieved. Then, the single chip processor compares the measured temperature value with a preset value, if the temperature exceeds 43 ℃, the single chip processor can firstly judge that the temperature of the blast hole is too high and is caused by the environmental temperature, the single chip processor sends a signal, a fan is started to supply air and dissipate heat in the blast hole, and temperature and pressure data are continuously collected; and if the temperature does not exceed the preset value, the system continues to acquire temperature data. Finally, after the fan is started, if the measured air pressure value continuously rises and exceeds 9.1Pa, the fact that the temperature of the blast hole is too high is mainly caused by oxidation and heat release of sulfide ore, the single chip processor sends a signal to start an audible and visual alarm to send alarm information, and an attendant is informed to carry out manual processing; if the air pressure data does not exceed the preset value, the system continues to collect the temperature and air pressure data. The system can avoid single factor to judge the internal state of the blast hole, takes aeration cooling measures at the initial stage of temperature rise in the blast hole, prevents and controls overhigh temperature of the explosive layer in the blast hole in advance, collects air pressure data and can judge whether the reason of overhigh temperature of the blast hole is caused by overhigh environmental temperature or heat release of sulfide ore oxidation.
Preferably, in the present example, the infrared temperature measurement sensor module adopts a WAAAX brand infrared temperature measurement sensor module integrated with an infrared sensing thermopile detector chip and a low-dryness amplifier signal processing dedicated chip, and the model is MLX90614 ESF; the air pressure sensor adopts a comedy clean electronic tablet air pressure sensor integrated with an air pressure sensor and a 24bit A/D converter, and the model is GY-63; the type of the singlechip is 80C 51; the fan is a Lame brand corrosion-resistant low-noise small fan with the model of FD-Y-250; the ventilation pipeline is a corrosion-resistant, high-temperature-resistant and flexible Master-Clip-brand pipeline with the model number of 252-050-116; audible-visual alarm is waterproof dustproof, the audible-visual alarm that the three-colour flickered of tablet is created to the east, and the model is: ASG-100.
In this example, the analysis software may be run by the data analysis device to analyze the location of the blasthole.
Claims (10)
1. Vulcanize mine explosive spontaneous explosion control early warning device, its characterized in that: the monitoring and early warning device comprises a data analysis device, a sensor assembly and a fan, wherein the sensor assembly and the fan are connected with the data processing device; the wind power output end of the fan is positioned in the blast hole; the sensor assembly comprises an infrared temperature measuring sensor module and an air pressure sensor module which are arranged in the blast hole; the data analysis device monitors environmental parameters inside the blast hole through the sensor assembly, safety evaluation is conducted on the blast hole according to the environmental parameter data, and when the evaluation result shows that the self-explosion risk exists, the single chip microcomputer controls the fan to conduct ventilation and heat dissipation on the blast hole.
2. The spontaneous explosion monitoring and early warning device for the sulfide mine explosive according to claim 1, which is characterized in that: the blast hole is a blind hole; the explosive is an emulsion explosive with plasticity; when the explosive is loaded in the blast hole, the bottom end of the blast hole is sealed to form a detection cavity.
3. The spontaneous explosion monitoring and early warning device for the sulfide mine explosive according to claim 2, which is characterized in that: the sensor assembly is arranged in a detection cavity at the bottom end of the blast hole; the environmental parameters inside the blast hole comprise temperature and pressure;
the fan is arranged outside the blast hole and inputs flowing air into the blast hole through the ventilation pipeline arranged at the blast hole so as to ventilate and radiate the blast hole.
4. The spontaneous explosion monitoring and early warning device for the sulfide mine explosive according to claim 3, which is characterized in that: the data processing device is a single chip microcomputer arranged outside the blast hole; the single chip microcomputer is provided with a display screen capable of displaying the temperature and the pressure inside the blast hole; the single chip microcomputer is also connected with an audible and visual alarm, and when the safety evaluation result of the single chip microcomputer on the blast hole shows that the self-explosion risk exists, the single chip microcomputer controls the audible and visual alarm to send alarm information;
an infrared sensor, an amplifier and an A/D (analog/digital) converter are arranged in the infrared temperature measurement sensor module;
and an air pressure sensor and an A/D analog-to-digital converter are arranged in the air pressure sensor module.
5. The self-explosion monitoring and early warning method for the vulcanized mine explosive is characterized by comprising the following steps: the early warning method uses the self-explosion monitoring and early warning device for the sulfide mine explosive in claim 3, and when a data analysis device carries out safety evaluation on a blast hole, temperature data and pressure data in a detection cavity in the blast hole are used as safety evaluation bases; when the temperature data in the detection cavity exceeds a temperature threshold value or the pressure data exceeds a pressure threshold value, the self-explosion risk is evaluated.
6. The spontaneous explosion monitoring and early warning method for the vulcanized mine explosive according to claim 5, which is characterized in that: the temperature threshold and the pressure threshold are obtained by software simulation of a temperature field and a fluid field of a blast hole of a sulfide mine by analysis software.
7. The spontaneous explosion monitoring and early warning method for the sulfide mine explosive according to claim 6, which is characterized in that: the software simulation method comprises the following steps;
step A1, examining the site of a blast hole of a sulfide mine, and collecting mine data;
a2, respectively establishing a temperature field and a fluid field three-dimensional model of a charging blast hole and dividing grids through a thermal analysis module and a flow field analysis module of analysis software;
step A3, respectively determining initial conditions and boundary conditions of a temperature field and a fluid field, and sequentially inputting actual thermal parameters and fluid field parameters of the sulfide mine according to the operation steps of a thermal analysis module and a flow field analysis module;
and A4, setting solving parameters of a thermal analysis module and a flow field analysis module, generating a blast hole model for solving, and checking the convergence condition of the solving result, wherein the solving result of the blast hole model for solving comprises visual data of a temperature cloud chart and visual data of a pressure cloud chart of the blast hole model.
8. The spontaneous explosion monitoring and early warning method for the sulfide mine explosive according to claim 7, which is characterized in that: in step a1, if the sulfide mine is a special mine for which survey data is available, the mine data may be taken with the existing survey data.
9. The spontaneous explosion monitoring and early warning method for the sulfide mine explosive according to claim 7, which is characterized in that: the analysis software is ANSYS software.
10. The spontaneous explosion monitoring and early warning method for the sulfide mine explosive according to claim 6, which is characterized in that: the monitoring and early warning method can take ventilation and cooling measures to the blast hole by a fan at the initial stage of temperature rise in the blast hole, prevent and control the phenomenon of overhigh temperature of an explosive layer in the blast hole in advance, and then collect air pressure data to judge whether the reason of overhigh temperature is caused by environmental temperature or oxidation and heat release of sulfide ores;
the pressure data is air pressure data of a blast hole detection cavity;
when the blower is used for ventilating and cooling the blast hole, the data analysis device continues to collect temperature data and pressure data of the blast hole, if the pressure data still continuously rises and is larger than a pressure threshold value, the data analysis device judges that the reason of abnormal temperature of the blast hole is oxidation heat release of sulfide ore, and the audible and visual alarm sends alarm information to prompt relevant responsible personnel to manually process the blast hole;
the air pipe in the big gun hole can extend into the detection cavity when being laid, and the data analysis device can release the air pressure in the detection cavity through the air pipe before monitoring the detection cavity so as to initialize the monitoring data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055766.1A CN112150746B (en) | 2020-09-29 | 2020-09-29 | Self-explosion monitoring and early warning device and method for vulcanized mine explosive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055766.1A CN112150746B (en) | 2020-09-29 | 2020-09-29 | Self-explosion monitoring and early warning device and method for vulcanized mine explosive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112150746A true CN112150746A (en) | 2020-12-29 |
| CN112150746B CN112150746B (en) | 2022-03-15 |
Family
ID=73895267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011055766.1A Active CN112150746B (en) | 2020-09-29 | 2020-09-29 | Self-explosion monitoring and early warning device and method for vulcanized mine explosive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112150746B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114170780A (en) * | 2021-12-09 | 2022-03-11 | 山东科技大学 | Visual dynamic monitoring and early warning system for spontaneous combustion of coal in mine goaf |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110006585A1 (en) * | 2009-03-06 | 2011-01-13 | African Explosives Limited | Mining method |
| CN102663183A (en) * | 2012-03-31 | 2012-09-12 | 浙江大学 | Blasting simulation method in digital mine |
| CN104280527A (en) * | 2014-09-29 | 2015-01-14 | 攀枝花恒威化工有限责任公司 | Emulsified explosive filling test device |
| CN205748142U (en) * | 2016-05-20 | 2016-11-30 | 中国葛洲坝集团易普力股份有限公司 | Flame range safe blasting system |
| CN108088337A (en) * | 2017-12-15 | 2018-05-29 | 武汉科技大学 | A kind of low temperature quick bursting device |
| CN208280987U (en) * | 2018-02-23 | 2018-12-25 | 中国矿业大学(北京) | Mine explosion monitoring system based on image monitoring equipment |
| CN109973149A (en) * | 2018-09-30 | 2019-07-05 | 大连迪安缇科技有限公司 | A kind of mining safety monitoring system |
| CN110425007A (en) * | 2019-07-29 | 2019-11-08 | 宿州市金鼎安全技术股份有限公司 | A kind of coal mine natural fire monitoring device based on fiber-optic grating sensor |
| CN110907496A (en) * | 2019-12-10 | 2020-03-24 | 福州大学 | Experimental device and test method for inducing explosive auto-explosion of sulfide ore |
-
2020
- 2020-09-29 CN CN202011055766.1A patent/CN112150746B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110006585A1 (en) * | 2009-03-06 | 2011-01-13 | African Explosives Limited | Mining method |
| CN102663183A (en) * | 2012-03-31 | 2012-09-12 | 浙江大学 | Blasting simulation method in digital mine |
| CN104280527A (en) * | 2014-09-29 | 2015-01-14 | 攀枝花恒威化工有限责任公司 | Emulsified explosive filling test device |
| CN205748142U (en) * | 2016-05-20 | 2016-11-30 | 中国葛洲坝集团易普力股份有限公司 | Flame range safe blasting system |
| CN108088337A (en) * | 2017-12-15 | 2018-05-29 | 武汉科技大学 | A kind of low temperature quick bursting device |
| CN208280987U (en) * | 2018-02-23 | 2018-12-25 | 中国矿业大学(北京) | Mine explosion monitoring system based on image monitoring equipment |
| CN109973149A (en) * | 2018-09-30 | 2019-07-05 | 大连迪安缇科技有限公司 | A kind of mining safety monitoring system |
| CN110425007A (en) * | 2019-07-29 | 2019-11-08 | 宿州市金鼎安全技术股份有限公司 | A kind of coal mine natural fire monitoring device based on fiber-optic grating sensor |
| CN110907496A (en) * | 2019-12-10 | 2020-03-24 | 福州大学 | Experimental device and test method for inducing explosive auto-explosion of sulfide ore |
Non-Patent Citations (2)
| Title |
|---|
| 阳富强: "《金属矿山硫化矿自然发火机理及其预测预报技术研究》", 《中国博士学位论文全文数据库工程科技Ⅰ辑》 * |
| 阳富强等: "硫化矿床开采中炸药自爆危险性的云模型分析", 《金属矿山》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114170780A (en) * | 2021-12-09 | 2022-03-11 | 山东科技大学 | Visual dynamic monitoring and early warning system for spontaneous combustion of coal in mine goaf |
| CN114170780B (en) * | 2021-12-09 | 2024-01-12 | 山东科技大学 | Visual dynamic monitoring and early warning system for spontaneous combustion of coal in mine goaf |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112150746B (en) | 2022-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112150746B (en) | Self-explosion monitoring and early warning device and method for vulcanized mine explosive | |
| US8342609B2 (en) | Mining method | |
| CN117910983B (en) | Electronic detonator detonation safety real-time detection and evaluation system based on data analysis | |
| CN115684489A (en) | Combustible toxic gas early warning system for safety production | |
| CN113703037B (en) | Industrial detonator data acquisition method for blasting operation site | |
| CN113433900B (en) | Unattended intelligent centralized control method and system for oil field station | |
| US20060071771A1 (en) | Device for security systems for operation of habitats on installations | |
| CN209911181U (en) | Dust concentration sensor | |
| RU121939U1 (en) | MOTOR INSULATION CONTROL DEVICE | |
| Mitra et al. | Prediction of strata monitoring system in underground coal mines using IoT | |
| CN109342690A (en) | Determine that sulphide ore induces the experimental rig of cook-off risk | |
| CN104482413A (en) | Mining gas pipeline explosion signal monitoring device | |
| CN111507640B (en) | Zero-overrun multi-dimensional dynamic prevention and control method for coal mine gas | |
| CN204255601U (en) | The pick-up unit of simulation flame range blasting protection structure | |
| CN106770983A (en) | A kind of mine laneway flow of flue gas simulated testing system and method | |
| CN100424606C (en) | Intelligent central control system for coal mine underground explosion | |
| CN111982964B (en) | Rock burst infrared monitoring device and method | |
| Polnik et al. | Detection of worn cutting bits of longwall shearer | |
| CN202961638U (en) | Explosion-proof fire truck temperature monitoring station | |
| RU2003103111A (en) | METHOD FOR MONITORING EMERGENCY GAS STATUS OF SPACE, PREVENTING EXPLOSIONS BY EMERGENCY DISPERSION, LOCALIZATION OF EXPLOSION AND DEVICE FOR ITS IMPLEMENTATION | |
| RU2817575C1 (en) | Method of controlling thermal state of electronic controller of gas turbine engine | |
| CN113096341B (en) | Spontaneous combustion monitoring and early warning device and method for sulfide ore | |
| CN113720990A (en) | Gas extraction pipeline gas leakage explosion simulation system and device | |
| Chen | Research on Mine Dust and Fire Detection System Based on Recurrent Neural Network | |
| CN115859460A (en) | Method and system for simulating oil pan fire of ship engine room |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |