UA117660C2 - A method and system for detecting and reducing methane hazard in vicinity of a longwall - Google Patents

A method and system for detecting and reducing methane hazard in vicinity of a longwall

Info

Publication number
UA117660C2
UA117660C2 UAA201501088A UAA201501088A UA117660C2 UA 117660 C2 UA117660 C2 UA 117660C2 UA A201501088 A UAA201501088 A UA A201501088A UA A201501088 A UAA201501088 A UA A201501088A UA 117660 C2 UA117660 C2 UA 117660C2
Authority
UA
Ukraine
Prior art keywords
longwall
shearer
concentration
recording system
seismoacoustic
Prior art date
Application number
UAA201501088A
Other languages
Ukrainian (uk)
Inventor
Збігніев Ісаков
Казіміер Сіціньскі
Адам ГОВОМБЕК
Original Assignee
Інститут Технік Інноваційних Емаг
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Інститут Технік Інноваційних Емаг filed Critical Інститут Технік Інноваційних Емаг
Publication of UA117660C2 publication Critical patent/UA117660C2/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/16—Combustible gas alarms
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital
    • G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital using a threshold to release an alarm or displaying means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/001—Acoustic presence detection
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—Specially adapted to detect a particular component
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/10—Aspects of acoustic signal generation or detection
    • G01V2210/12—Signal generation
    • G01V2210/123—Passive source, e.g. microseismics

Abstract

A method of detecting and reducing methane hazard in the longwall area is characterized in that the regions of stress (N) concentration are periodically localized on the longwall panel length by a passive velocity tomography using seismometers (8) and low-frequency geophones (9). These data are compared with current seismoacoustic measurements localizing places (M) of groups of crashes accompanying cracking of the rock mass in the longwall panel length, with measurements of methane concentration and the air flow in the working. The places of stress (N) concentration in front of the longwall are additionally localized with an active attenuation-damping tomography taking into account a shearer (13) position relative to the working (B). Then, these variables are correlated in time and space, and after finding that the correlation coefficient exceeds predetermined critical value, preventive procedures to minimize methane hazard are initiated. In the measurement system the seismic recording system (1), methanometric system (3), executive system (6), and warning module (7) are connected to the microprocessor analytical system (5). The seismic recording system (1) with attached at least four seismometers (8), at least four low-frequency geo-phones (9) and at least two strain sensors (10), is connected to the seismoacoustic recording system (2) with at least four geophones (11), and to the position and operation control system (4) of the shearer (13) with a shearer position sensor (12).
UAA201501088A 2014-10-30 2014-10-31 A method and system for detecting and reducing methane hazard in vicinity of a longwall UA117660C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL409988A PL228634B1 (en) 2014-10-30 2014-10-30 Method and the system for detecting and minimising methane hazard within the excavation longwall area
PCT/PL2014/000123 WO2015002556A2 (en) 2014-10-30 2014-10-31 A method and system for detecting and reducing methane hazard in vicinity of a longwall

Publications (1)

Publication Number Publication Date
UA117660C2 true UA117660C2 (en) 2018-09-10

Family

ID=52021408

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA201501088A UA117660C2 (en) 2014-10-30 2014-10-31 A method and system for detecting and reducing methane hazard in vicinity of a longwall

Country Status (5)

Country Link
CN (1) CN105765407B (en)
PL (1) PL228634B1 (en)
RU (1) RU2594917C1 (en)
UA (1) UA117660C2 (en)
WO (1) WO2015002556A2 (en)

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CN108374689A (en) * 2017-01-29 2018-08-07 吕琳 A kind of inclined shaft gas boring and surveying system structure
CN107884363B (en) * 2017-10-17 2023-10-24 中国矿业大学(北京) Laser mine gas telemetry method based on machine vision technology
PL235094B1 (en) * 2017-11-17 2020-05-18 Instytut Mech Gorotworu Polskiej Akademii Nauk Method and the control system of the mining winning machine in the methane longwalls
CN109441547B (en) * 2018-12-29 2024-03-19 煤炭科学技术研究院有限公司 Real-time monitoring and early warning system and method for coal and gas outburst of mining working face
CN109993950B (en) * 2019-04-14 2022-02-18 杭州拓深科技有限公司 Big data fire prediction method based on fire alarm equipment
CN110173304A (en) * 2019-06-05 2019-08-27 中国矿业大学 A kind of intelligent mine safety monitoring assembly
RU2727317C1 (en) * 2019-10-15 2020-07-21 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Forecast method of mine impact in mines and shafts
CN111963243B (en) * 2020-07-22 2021-05-07 中国矿业大学 Rock burst danger monitoring and early warning method based on dynamic and static combined stress analysis
CN114109509B (en) * 2021-12-15 2023-03-14 中国矿业大学(北京) Coal mine dynamic disaster monitoring and alarming method and monitoring and alarming system

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Also Published As

Publication number Publication date
PL228634B1 (en) 2018-04-30
CN105765407B (en) 2019-07-12
PL409988A1 (en) 2016-05-09
WO2015002556A3 (en) 2015-11-05
WO2015002556A2 (en) 2015-01-08
CN105765407A (en) 2016-07-13
RU2594917C1 (en) 2016-08-20

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