CN204101338U - A kind of down-hole bound polyamine sampling apparatus based on coal extraction system - Google Patents

A kind of down-hole bound polyamine sampling apparatus based on coal extraction system Download PDF

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Publication number
CN204101338U
CN204101338U CN201420587465.7U CN201420587465U CN204101338U CN 204101338 U CN204101338 U CN 204101338U CN 201420587465 U CN201420587465 U CN 201420587465U CN 204101338 U CN204101338 U CN 204101338U
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China
Prior art keywords
sampling
air
gas
tube
extraction system
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Expired - Fee Related
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CN201420587465.7U
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Chinese (zh)
Inventor
卢平
张纯如
余陶
李庆民
姚尚文
夏新苗
戚宇涵
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Anhui Jianzhu University
Huainan Mining Group Co Ltd
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Anhui Jianzhu University
Huainan Mining Group Co Ltd
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Abstract

The utility model discloses a kind of down-hole bound polyamine sampling apparatus based on coal extraction system, it is characterized in that arranging air drum, sampling beam tube is connected with the enterprising tracheae of air drum, and the transfer tube be connected with exhaust tube on air drum is connected with extraction system at the other end; The air intake opening of manual gas production cylinder is connected with the air collecting pipe bottom air drum, and connect sampling air bag in the gas outlet of manual gas production cylinder can complete sampling by the gas storage extraction in air drum in sampling air bag; Or connect clarity shrink cover by flexible pipe, and Portable, multiple parameter analyzer is utilized to carry out Real-Time Monitoring for the gas sample be captured in clarity shrink cover.The utility model utilizes the negative pressure of down-hole extraction system as power, effectively can solve the gas leakage of long distance beam tube sampling and problem not in place of sampling, can realize down-hole Real-Time Monitoring, effectively improve coal spontaneous combustion accuracy of the forecast.

Description

A kind of down-hole bound polyamine sampling apparatus based on coal extraction system
Technical field
The utility model relates to underground coal mine bound polyamine gas sampling assembly, is more particularly for when workplace Study on Protection of Spontaneous Combustion, utilizes beam tube to gather the device of goaf gas.
Background technology
Coal spontaneous combustion disaster affects the major hidden danger in mine safety recovery process, particularly coal-face spontaneous combustion in goaf, and it is very hidden that development occurs for it.Both at home and abroad for coal spontaneous combustion disaster mainly to put prevention first, therefore, the monitoring for Study on Protection of Spontaneous Combustion is very important.At present, bound polyamine is the Main Means of China's coal-mine underground goaf spontaneous combustion monitoring, is the beam tube by being embedded in goaf in advance, gathers gas sample in goaf, CO, O in chemical examination gas sample 2, C 2h 6, C 2h 4, C 2h 2etc. gas componant, and the gas marker that be oxidized temperature rise period different from certified reference coal is compared, and judges the oxidation intensification degree of Residual coal in goaf, thus accurate forecast Coal Self-ignition Process.In this process, gas sampling is very crucial, once gas leakage or do not collect the gas of appointed area in sampling process, all will directly affect the accuracy of gas analysis result, causes the false judgment to goaf coal spontaneous combustion.
At present, the gas sampling of home and abroad colliery bound polyamine mainly contains two kinds of modes, and one is the sampling of ground extraction pump, and two is down-hole artificial samples.Wherein, the beam tube of ground extraction pump sampling is very long, and connector is more, and underground coal mine inclement condition in addition, inevitably there will be pipeline gas leak phenomenon, makes to be mixed into air in Tube Bundle Monitoring System, causes analysis result to be forbidden.During the artificial sample of down-hole, workman adopts pump bowl to sample, if monitoring beam tube is longer, needing to bleed many times just can collect appointed area gas, and artificial sample operates entirely by rule of thumb, likely collects the residual gas in beam tube, affects final analysis result.
Utility model content
The utility model is the weak point for avoiding existing for above-mentioned prior art, a kind of down-hole bound polyamine sampling apparatus based on coal extraction system is provided, utilize down-hole existing extraction system negative pressure as power, underground site negative pressure power is sampled, to solve the long distance samples gas leakage of ground Tube Bundle Monitoring System, down-hole artificial sample is not in place and separately build the problems such as the complicated waste of negative pressure sampling system separately, and portable gas multi-parameter can be connected further, realize down-hole Real-Time Monitoring, improve coal spontaneous combustion accuracy of the forecast, ensure mine safety High-efficient Production.
The utility model based on the design feature of the down-hole bound polyamine sampling apparatus of coal extraction system is:
Utilize down-hole existing extraction system negative pressure as power, arrange air drum, be communicated with draft tube in one end of air drum, the other end is communicated with exhaust tube, and bottom is communicated with air collecting pipe; Described exhaust tube is provided with extraction valve, described air collecting pipe is provided with retaining valve, described retaining valve is towards the unidirectional shutoff of air drum side, and described air drum is closed cylinder;
Sampling beam tube is connected with draft tube, and one end of transfer tube is connected with exhaust tube, and the other end of transfer tube is used for being connected with down-hole extraction system or mobile extraction pump pipeline; The air intake opening of manual gas production cylinder is connected with air collecting pipe by flexible pipe, connects sampling air bag in the gas outlet of manual gas production cylinder by flexible pipe, completes sampling for the gas storage in air drum being extracted in sampling air bag; Or connect clarity shrink cover by flexible pipe, and Portable, multiple parameter analyzer is utilized to carry out Real-Time Monitoring for the gas sample be captured in clarity shrink cover.
The utility model based on the bound polyamine method of the down-hole bound polyamine sampling apparatus of coal extraction system is:
Step 1, open extraction valve, start the extraction system or mobile extraction pump that are connected with transfer tube, take out 5-10 minute in advance;
Step 2, realize sampling and monitoring by following either type
Mode one: close extraction valve, be connected by the air intake opening of pump bowl by flexible pipe with exhaust tube, being connected sampling air bag in the gas outlet of taking out socket by flexible pipe, for the gas storage in air drum being extracted in sampling air bag, realizing sampling;
Mode two: close extraction valve, connects clarity shrink cover by the air intake opening of pump bowl by flexible pipe, and utilizes Portable, multiple parameter analyzer to carry out Real-Time Monitoring for the gas sample ingredient be captured in clarity shrink cover.
The utility model device connects between beam tube and existing extraction system or mobile extraction pump, for extracting goaf gas, and realizes gas sampling by connecting manual gas production cylinder; Scene utilizes portable gas multi-parameter to realize on-line real time monitoring, greatly improves accuracy and the validity of bound polyamine.Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the utility model is by the extraction system in connection coal mining system or mobile extraction pump, can maximize and extract goaf internal gas, effectively prevent artificial sample and can not collect appointed area gas, thus improves the accuracy of bound polyamine.
2, the utility model directly can gather gas sample or connect portable gas multi-parameter and realize Real-Time Monitoring, effectively prevent the gas leak phenomenon that Tube Bundle Monitoring System circuit is long, thus improves the validity of bound polyamine.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Number in the figure: 1 sampling beam tube, 2 draft tube, 3 air drums, 4 extraction valves, 5 transfer tubes, 6 retaining valves, 7 manual gas production cylinders, 8 flexible pipes, 9 sampling air bag, 10 clarity shrink covers, 11 Portable, multiple parameter analyzers.
Embodiment
See Fig. 1, the version of the down-hole bound polyamine sampling apparatus based on coal extraction system in the present embodiment is:
Arrange air drum 3, be communicated with draft tube 2 in one end of air drum 3, the other end is communicated with exhaust tube, and bottom is communicated with air collecting pipe; Exhaust tube is provided with extraction valve 4, air collecting pipe is provided with retaining valve 6, retaining valve 6 towards the unidirectional shutoff of air drum 3 side, the closed cylinder of air drum 3 to be diameters be 51mm; The copper tube of draft tube 2, exhaust tube and air collecting pipe to be all diameter be 8mm.
Shown in Fig. 1, in concrete enforcement, sampling beam tube 1 is connected with draft tube 2, and one end of transfer tube 5 is connected with exhaust tube, and the other end of transfer tube 5 is used for being connected with down-hole extraction system or mobile extraction pump pipeline; The air intake opening of manual gas production cylinder 7 is connected with air collecting pipe by flexible pipe 8, connects sampling air bag 9 in the gas outlet of manual gas production cylinder 7 by flexible pipe, completes sampling for the gas storage in air drum 3 being extracted in sampling air bag 9; Or connect clarity shrink cover 10 by flexible pipe, and Portable, multiple parameter analyzer 11 is utilized to carry out Real-Time Monitoring for the gas sample be captured in clarity shrink cover 10.
The method utilizing the bound polyamine of underground coal mine shown in Fig. 1 sampling apparatus to realize bound polyamine in the present embodiment is undertaken by first stage and subordinate phase segmentation, and the first stage is for extracting appointed area, goaf gas, and subordinate phase is bleed sampling or Real-Time Monitoring.Step specific as follows is carried out:
Step 1, open extraction valve 4, start the extraction system or mobile extraction pump that are connected with transfer tube 5, extract appointed area, goaf gas by sampling beam tube 1, can continue after taking out 5-10 minute in advance implement sampling or monitor.
Step 2, realize sampling and monitoring by following either type
Mode one: close extraction valve 4, be connected by the air intake opening of pump bowl 7 by flexible pipe 8 with exhaust tube, being connected sampling air bag 9 in the gas outlet of taking out socket 7 by flexible pipe, for the gas storage in air drum 3 being extracted in sampling air bag 9, realizing sampling;
Mode two: close extraction valve 4, connects clarity shrink cover 10 by the air intake opening of pump bowl 7 by flexible pipe, and utilizes Portable, multiple parameter analyzer 11 to carry out Real-Time Monitoring for the gas sample ingredient be captured in clarity shrink cover 10.

Claims (1)

1., based on a down-hole bound polyamine sampling apparatus for coal extraction system, it is characterized in that:
Utilize down-hole existing extraction system negative pressure as power, arrange air drum (3), be communicated with draft tube (2) in one end of air drum (3), the other end is communicated with exhaust tube, and bottom is communicated with air collecting pipe; Described exhaust tube is provided with extraction valve (4), described air collecting pipe is provided with retaining valve (6), described retaining valve (6) is towards the unidirectional shutoff of air drum (3) side, and described air drum (3) is closed cylinder;
Sampling beam tube (1) is connected with draft tube (2), and one end of transfer tube (5) is connected with exhaust tube, and the other end of transfer tube (5) is used for being connected with down-hole extraction system or mobile extraction pump pipeline; The air intake opening of manual gas production cylinder (7) is connected with air collecting pipe by flexible pipe (8), connecting sampling air bag (9) in the gas outlet of manual gas production cylinder (7) by flexible pipe, in sampling air bag (9), completing sampling for the gas storage in air drum (3) being extracted; Or connect clarity shrink cover (10) by flexible pipe, and Portable, multiple parameter analyzer (11) is utilized to carry out Real-Time Monitoring for the gas sample be captured in clarity shrink cover (10).
CN201420587465.7U 2014-10-11 2014-10-11 A kind of down-hole bound polyamine sampling apparatus based on coal extraction system Expired - Fee Related CN204101338U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105651567A (en) * 2016-01-13 2016-06-08 西安交通大学 Self-diagnostic system and method for soft connection of grading gas-suctioning mine bundle pipes
CN106841407A (en) * 2015-12-07 2017-06-13 山西潞安矿业(集团)有限责任公司 A kind of coal mine fully-mechanized mining working goaf gas-detecting device and its detection method
CN106989965A (en) * 2017-06-09 2017-07-28 辽宁工程技术大学 A kind of coal mine underground gas sampling apparatus and method
CN107091114A (en) * 2017-06-29 2017-08-25 辽宁工程技术大学 A kind of coal mine gob beam tube protection device and its application method
CN107219101A (en) * 2017-06-23 2017-09-29 安徽理工大学 A kind of Purely mechanical goaf beam tube collector and method
CN108362531A (en) * 2018-04-20 2018-08-03 吉林省圣宜达科技有限公司 A kind of gas monitoring system suitable for underground coal mine
CN113433269A (en) * 2021-06-24 2021-09-24 淄博祥龙测控技术有限公司 Goaf gas detection method and device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106841407A (en) * 2015-12-07 2017-06-13 山西潞安矿业(集团)有限责任公司 A kind of coal mine fully-mechanized mining working goaf gas-detecting device and its detection method
CN106841407B (en) * 2015-12-07 2020-04-03 山西潞安矿业(集团)有限责任公司 Gas detection device and detection method for goaf of fully mechanized coal mining face of coal mine
CN105651567A (en) * 2016-01-13 2016-06-08 西安交通大学 Self-diagnostic system and method for soft connection of grading gas-suctioning mine bundle pipes
CN105651567B (en) * 2016-01-13 2018-10-30 西安交通大学 A kind of classification pumping mine tube bundle system and method that is flexible coupling of self-diagnosable
CN106989965A (en) * 2017-06-09 2017-07-28 辽宁工程技术大学 A kind of coal mine underground gas sampling apparatus and method
CN107219101A (en) * 2017-06-23 2017-09-29 安徽理工大学 A kind of Purely mechanical goaf beam tube collector and method
CN107219101B (en) * 2017-06-23 2019-07-09 安徽理工大学 A kind of Purely mechanical goaf beam tube collector and method
CN107091114A (en) * 2017-06-29 2017-08-25 辽宁工程技术大学 A kind of coal mine gob beam tube protection device and its application method
CN108362531A (en) * 2018-04-20 2018-08-03 吉林省圣宜达科技有限公司 A kind of gas monitoring system suitable for underground coal mine
CN113433269A (en) * 2021-06-24 2021-09-24 淄博祥龙测控技术有限公司 Goaf gas detection method and device

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Granted publication date: 20150114

Termination date: 20171011