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 PDFInfo
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- 238000005070 sampling Methods 0.000 title claims abstract description 67
- 238000000605 extraction Methods 0.000 title claims abstract description 35
- 239000003245 coal Substances 0.000 title claims abstract description 25
- 229920000768 polyamine Polymers 0.000 title 1
- 238000012544 monitoring process Methods 0.000 claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 230000002269 spontaneous effect Effects 0.000 abstract description 9
- 238000012546 transfer Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 238000005065 mining Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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Abstract
本实用新型公开了一种基于煤矿抽采系统的井下束管监测采样装置，其特征是设置储气筒，采样束管与储气筒上进气管相连通，与储气筒上抽气管相连通的转接管在另一端与抽采系统相连接；手动采气筒的进气口与储气筒底部的采气管相连通，在手动采气筒的出气口连接采样气囊即可将储气筒中的储气抽取在采样气囊中完成采样；或者是通过软管连接透明收缩罩，并利用便携式多参数测定仪对于采集在透明收缩罩中的气样进行实时监测。本实用新型利用井下抽采系统的负压作为动力，可以有效解决长距离束管采样漏气以及采样不到位的问题，可以实现井下实时监测，有效提高了煤自燃预报的准确性。
The utility model discloses an underground tube monitoring and sampling device based on a coal mine drainage system, which is characterized in that an air storage cylinder is arranged, the sampling bundle tube is connected with the air intake pipe on the gas storage cylinder, and the transfer pipe connected with the air extraction pipe on the gas storage cylinder is located in the The other end is connected to the extraction system; the air inlet of the manual gas sampling cylinder is connected to the gas sampling pipe at the bottom of the gas storage cylinder, and the sampling air bag is connected to the air outlet of the manual gas sampling cylinder to extract the gas stored in the gas storage cylinder into the sampling air bag Complete sampling; or connect the transparent shrink hood through a hose, and use a portable multi-parameter analyzer to monitor the gas samples collected in the transparent shrink hood in real time. The utility model uses the negative pressure of the underground extraction system as power, can effectively solve the problems of long-distance bundle tube sampling leakage and insufficient sampling, can realize underground real-time monitoring, and effectively improves the accuracy of coal spontaneous combustion prediction.
Description
技术领域technical field
本实用新型涉及煤矿井下束管监测气体采样装置，更具体地说是用于在工作面采空区自燃发火时，利用束管采集采空区气体的装置。The utility model relates to an underground bundle tube monitoring gas sampling device in a coal mine, more specifically a device for collecting gob gas by using a bundle tube when the goaf spontaneously ignites in a working face.
背景技术Background technique
煤自燃灾害是影响煤矿安全开采过程中的重大隐患，特别是采煤工作面采空区遗煤自燃，其发生发展十分隐蔽。国内外针对煤自燃灾害主要以预防为主，因此，对于采空区自燃发火的监测十分重要。目前，束管监测是我国煤矿井下采空区自燃发火监测的主要手段，是通过预先埋入在采空区的束管，采集采空区内气体样本，化验气体样本中CO、O2、C2H6、C2H4、C2H2等气体成分，并与标准煤样不同氧化升温阶段的标志性气体进行比对，判断采空区遗煤的氧化升温程度，从而准确预报煤自燃过程。在这一个过程中，气体采样十分关键，一旦采样过程中漏气或者没有采集到指定区域的气体，都将直接影响气体分析结果的准确性，导致对采空区煤自燃的错误判断。Coal spontaneous combustion disaster is a major hidden danger affecting the safe mining process of coal mines, especially the spontaneous combustion of residual coal in the goaf of coal mining face, its occurrence and development are very hidden. At home and abroad, the prevention of coal spontaneous combustion disasters is the main focus. Therefore, the monitoring of spontaneous combustion in goafs is very important. At present, beam tube monitoring is the main means of monitoring spontaneous combustion in goafs of coal mines in China. It collects gas samples in goafs through beam tubes pre-buried in goafs, and tests CO, O 2 , and C in gas samples. 2 H 6 , C 2 H 4 , C 2 H 2 and other gas components, and compare them with the standard coal samples at different oxidation and temperature rise stages to determine the degree of oxidation and temperature rise of the remaining coal in the goaf, so as to accurately predict coal spontaneous combustion process. In this process, gas sampling is very critical. Once the gas leaks during the sampling process or the gas in the designated area is not collected, the accuracy of the gas analysis results will be directly affected, resulting in a wrong judgment on the spontaneous combustion of coal in the goaf.
目前，国内外煤矿束管监测气体采样主要有两种方式，一是地面抽采泵采样，二是井下人工采样。其中，地面抽采泵采样的束管很长，且连接头较多，加之煤矿井下条件恶劣，不可避免的会出现管路漏气现象，使束管监测系统中混入空气，导致分析结果不准。井下人工采样时，工人采用抽气筒取样，如果监测束管较长，需要很多次抽气才能采集到指定区域气体，人工采样全凭经验操作，有可能采集到束管中的残留气体，影响最终的分析结果。At present, there are two main methods of gas sampling for coal mine bundle tube monitoring at home and abroad, one is ground pump sampling, and the other is underground manual sampling. Among them, the bundle pipe used for sampling by the surface drainage pump is very long, and there are many connectors. In addition, the underground conditions of the coal mine are harsh, and the phenomenon of pipeline air leakage will inevitably occur, which will cause air to be mixed into the bundle pipe monitoring system, resulting in inaccurate analysis results. . When manual sampling is done downhole, workers use pumping tubes to sample. If the monitoring bundle tube is long, it will take many pumping times to collect the gas in the designated area. Manual sampling is all based on experience, and it is possible to collect residual gas in the bundle tube, which will affect the final product. analysis results.
实用新型内容Utility model content
本实用新型是为避免上述现有技术所存在的不足之处，提供一种基于煤矿抽采系统的井下束管监测采样装置，利用井下已有的抽采系统负压作为动力，井下现场负压动力采样，以解决地面束管监测系统长距离采样漏气、井下人工采样不到位和单独另建负压采样系统复杂浪费等问题，并可进一步连接便携式气体多参数测定仪，实现井下实时监测，提高煤自燃预报的准确性，保证煤矿安全高效生产。The utility model is to avoid the disadvantages of the above-mentioned prior art, and provides an underground tube monitoring and sampling device based on the coal mine drainage system. Dynamic sampling to solve the problems of long-distance sampling gas leakage in the surface bundle tube monitoring system, inadequate downhole manual sampling and complex waste of a separate negative pressure sampling system, and can be further connected to a portable gas multi-parameter detector to realize downhole real-time monitoring. Improve the accuracy of coal spontaneous combustion prediction and ensure the safe and efficient production of coal mines.
本实用新型基于煤矿抽采系统的井下束管监测采样装置的结构特点是：The utility model is based on the structural characteristics of the underground bundle tube monitoring and sampling device of the coal mine drainage system:
利用井下已有的抽采系统负压作为动力，设置储气筒，在储气筒的一端连通有进气管，另一端连通有抽气管，底部连通有采气管；在所述抽气管上设置有抽气阀，在所述采气管上设置有单向阀，所述单向阀朝向储气筒所在一侧单向关断，所述储气筒为封闭筒体；Utilizing the negative pressure of the existing underground extraction system as the power, a gas storage cylinder is installed. One end of the gas storage cylinder is connected with an air intake pipe, the other end is connected with a gas extraction pipe, and the bottom is connected with a gas production pipe; A valve, a one-way valve is arranged on the gas collection pipe, and the one-way valve closes one-way toward the side where the gas storage tank is located, and the gas storage tank is a closed cylinder;
采样束管与进气管相连接，转接管的一端与抽气管相连接，转接管的另一端用于和井下抽采系统或移动抽采泵管路相连接；手动采气筒的进气口通过软管与采气管相连通，在手动采气筒的出气口通过软管连接采样气囊，用于将储气筒中的储气抽取在采样气囊中完成采样；或者是通过软管连接透明收缩罩，并利用便携式多参数测定仪对于采集在透明收缩罩中的气样进行实时监测。The sampling bundle tube is connected with the air intake pipe, one end of the adapter pipe is connected with the exhaust pipe, and the other end of the adapter pipe is used to connect with the underground drainage system or the pipeline of the mobile extraction pump; The tube is connected with the gas sampling tube, and the sampling air bag is connected to the sampling air bag through a hose at the air outlet of the manual gas sampling cylinder, which is used to extract the gas stored in the gas storage tank into the sampling air bag to complete sampling; or connect the transparent shrink cover through a hose, and use The portable multi-parameter analyzer performs real-time monitoring of the gas samples collected in the transparent shrink hood.
本实用新型基于煤矿抽采系统的井下束管监测采样装置的束管监测方法是：The utility model is based on the beam tube monitoring method of the underground tube tube monitoring sampling device of the coal mine drainage system:
步骤1、打开抽气阀，启动与转接管相连通的抽采系统或移动抽采泵，预抽5-10分钟；Step 1. Open the exhaust valve, start the extraction system or mobile extraction pump connected to the transfer pipe, and pre-extract for 5-10 minutes;
步骤2、按如下任一方式实现采样和监测Step 2. Realize sampling and monitoring in any of the following ways
方式一：关闭抽气阀，将抽气筒的进气口通过软管与抽气管相连通，在抽管筒的出气口通过软管连接采样气囊，用于将储气筒中的储气抽取在采样气囊中，实现采样；Method 1: Close the air extraction valve, connect the air inlet of the air extraction tube with the air extraction tube through a hose, and connect the sampling air bag through the hose at the air outlet of the extraction tube to extract the gas stored in the air storage tank during sampling In the airbag, sampling is realized;
方式二：关闭抽气阀，将抽气筒的进气口通过软管连接透明收缩罩，并利用便携式多参数测定仪对于采集在透明收缩罩中的气样成分进行实时监测。Method 2: Close the exhaust valve, connect the air inlet of the exhaust tube to the transparent shrink cover through a hose, and use a portable multi-parameter analyzer to monitor the composition of the gas sample collected in the transparent shrink cover in real time.
本实用新型装置在束管和现有的抽采系统或移动抽采泵之间进行连接，用于抽取采空区气体，并通过连接手动采气筒实现气体采样；现场利用便携式气体多参数测定仪还可以实现在线实时监测，大大提高束管监测的准确性和有效性。与已有技术相比，本实用新型的有益效果体现在：The device of the utility model is connected between the bundle tube and the existing extraction system or the mobile extraction pump, and is used to extract the gas in the goaf, and realize gas sampling by connecting the manual gas extraction cylinder; the portable gas multi-parameter measuring instrument is used on site It can also realize online real-time monitoring, greatly improving the accuracy and effectiveness of beam tube monitoring. Compared with the prior art, the beneficial effects of the utility model are reflected in:
1、本实用新型通过连接采煤系统中的抽采系统或移动抽采泵，能最大化抽取采空区内部气体，有效避免了人工采样不能采集到指定区域气体，从而提高束管监测的准确性。1. The utility model can maximize the extraction of gas inside the goaf by connecting the extraction system or the mobile extraction pump in the coal mining system, effectively avoiding the failure of manual sampling to collect the gas in the designated area, thereby improving the accuracy of beam tube monitoring sex.
2、本实用新型可直接采集气样或连接便携式气体多参数测定仪实现实时监测，有效避免了束管监测系统线路过长的漏气现象，从而提高束管监测的有效性。2. The utility model can directly collect gas samples or connect to a portable gas multi-parameter measuring instrument to realize real-time monitoring, effectively avoiding the gas leakage phenomenon caused by too long lines of the bundle tube monitoring system, thereby improving the effectiveness of bundle tube monitoring.
附图说明Description of drawings
图1为本实用新型结构示意图。Fig. 1 is the structural representation of the utility model.
图中标号：1采样束管、2进气管、3储气筒、4抽气阀、5转接管、6单向阀、7手动采气筒、8软管、9采样气囊、10透明收缩罩、11便携式多参数测定仪。Numbers in the figure: 1 sampling bundle tube, 2 intake pipe, 3 air storage tank, 4 exhaust valve, 5 adapter tube, 6 one-way valve, 7 manual gas sampling cylinder, 8 hose, 9 sampling air bag, 10 transparent shrink cover, 11 Portable multi-parameter analyzer.
具体实施方式Detailed ways
参见图1，本实施例中基于煤矿抽采系统的井下束管监测采样装置的结构形式为：Referring to Fig. 1, the structural form of the underground bundle tube monitoring and sampling device based on the coal mine drainage system in this embodiment is:
设置储气筒3，在储气筒3的一端连通有进气管2，另一端连通有抽气管，底部连通有采气管；在抽气管上设置有抽气阀4，在采气管上设置有单向阀6，单向阀6朝向储气筒3所在一侧单向关断，储气筒3是直径为51mm的封闭筒体；进气管2、抽气管和采气管都是直径为8mm的紫铜管。A gas storage tank 3 is provided, and one end of the gas storage tank 3 is connected with an air intake pipe 2, the other end is connected with an air extraction pipe, and the bottom is connected with a gas collection pipe; an air extraction valve 4 is arranged on the air extraction pipe, and a one-way valve is arranged on the gas collection pipe 6. The one-way valve 6 closes one-way towards the side where the gas storage tank 3 is located. The gas storage tank 3 is a closed cylinder with a diameter of 51mm; the air intake pipe 2, the exhaust pipe and the gas collection pipe are all copper pipes with a diameter of 8mm.
图1所示，具体实施中，采样束管1与进气管2相连接，转接管5的一端与抽气管相连接，转接管5的另一端用于和井下抽采系统或移动抽采泵管路相连接；手动采气筒7的进气口通过软管8与采气管相连通，在手动采气筒7的出气口通过软管连接采样气囊9，用于将储气筒3中的储气抽取在采样气囊9中完成采样；或者是通过软管连接透明收缩罩10，并利用便携式多参数测定仪11对于采集在透明收缩罩10中的气样进行实时监测。As shown in Figure 1, in the specific implementation, the sampling bundle tube 1 is connected with the intake pipe 2, one end of the adapter pipe 5 is connected with the exhaust pipe, and the other end of the adapter pipe 5 is used to connect with the underground drainage system or the mobile extraction pump pipe. The air inlet of the manual gas sampling cylinder 7 is connected with the gas sampling pipe through a flexible pipe 8, and the gas outlet of the manual gas sampling cylinder 7 is connected to the sampling air bag 9 through a flexible hose, which is used to extract the gas stored in the gas storage cylinder 3 in the Sampling is completed in the sampling air bag 9 ; or the transparent shrink cover 10 is connected through a hose, and the gas sample collected in the transparent shrink cover 10 is monitored in real time by a portable multi-parameter measuring instrument 11 .
本实施例中利用图1所示煤矿井下束管监测采样装置实现束管监测的方法是按第一阶段和第二阶段分段进行，第一阶段是为抽取采空区指定区域气体，第二阶段是抽气采样或实时监测。具体如下步骤进行：In this embodiment, the method of utilizing the coal mine underground bundle tube monitoring and sampling device shown in Figure 1 to realize bundle tube monitoring is carried out in stages according to the first stage and the second stage. The first stage is to extract the gas in the designated area of the goaf, and the second stage The stage is extraction sampling or real-time monitoring. The specific steps are as follows:
步骤1、打开抽气阀4，启动与转接管5相连通的抽采系统或移动抽采泵，通过采样束管1抽取采空区指定区域气体，预抽5-10分钟后可继续实施采样或监测。Step 1. Open the exhaust valve 4, start the extraction system or mobile extraction pump connected to the transfer pipe 5, and extract the gas in the designated area of the goaf through the sampling bundle tube 1, and continue sampling after 5-10 minutes of pre-extraction or monitor.
步骤2、按如下任一方式实现采样和监测Step 2. Realize sampling and monitoring in any of the following ways
方式一：关闭抽气阀4，将抽气筒7的进气口通过软管8与抽气管相连通，在抽管筒7的出气口通过软管连接采样气囊9，用于将储气筒3中的储气抽取在采样气囊9中，实现采样；Method 1: Close the air extraction valve 4, connect the air inlet of the air extraction cylinder 7 with the air extraction pipe through the hose 8, connect the sampling air bag 9 through the hose at the air outlet of the extraction tube 7, and use it to remove the air from the air storage cylinder 3. The stored gas is extracted in the sampling air bag 9 to realize sampling;
方式二：关闭抽气阀4，将抽气筒7的进气口通过软管连接透明收缩罩10，并利用便携式多参数测定仪11对于采集在透明收缩罩10中的气样成分进行实时监测。Method 2: close the exhaust valve 4, connect the air inlet of the exhaust tube 7 to the transparent shrink cover 10 through a hose, and use the portable multi-parameter measuring instrument 11 to monitor the components of the gas sample collected in the transparent shrink cover 10 in real time.
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| 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 |
| CN115807689A (en) * | 2022-12-19 | 2023-03-17 | 国电建投内蒙古能源有限公司 | Pneumatic negative pressure air extraction device and method for bundled tubes in goaf |
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- 2014-10-11 CN CN201420587465.7U patent/CN204101338U/en not_active Expired - Fee Related
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| 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 | A kind of gas detection device and detection method in goaf of fully mechanized coal mining face |
| 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 pure mechanical goaf bundle tube gas extraction device 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 |
| CN115807689A (en) * | 2022-12-19 | 2023-03-17 | 国电建投内蒙古能源有限公司 | Pneumatic negative pressure air extraction device and method for bundled tubes in goaf |
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