煤田地质与勘探
煤田地質與勘探
매전지질여감탐
COAL GEOLOGY & EXPLORATION
2015年
4期
51-54
,共4页
大气压力%煤样%解吸气含量
大氣壓力%煤樣%解吸氣含量
대기압력%매양%해흡기함량
atmospheric pressure%coal samples%desorbed coalbed gas content
以自然解吸样品为对象，研究大气压力对煤样解吸气含量测试结果的影响。结果表明：当样品从大气压力较低的采样地点返回大气压力较高的实验室后，每24 h 的解吸气含量测试结果明显减小，减小的幅度明显大于采样地点每24 h 减小的幅度；对于开始7 d 解吸气含量测试结果为零或者较小、按照标准可以结束测试的样品，建议将测试时间延长在3周左右，若按照标准仍旧可以结束测试时，再停止实验；如果样品在采样地点进行解吸实验直到结束，总解吸气含量测试结果将大于实验室。
以自然解吸樣品為對象，研究大氣壓力對煤樣解吸氣含量測試結果的影響。結果錶明：噹樣品從大氣壓力較低的採樣地點返迴大氣壓力較高的實驗室後，每24 h 的解吸氣含量測試結果明顯減小，減小的幅度明顯大于採樣地點每24 h 減小的幅度；對于開始7 d 解吸氣含量測試結果為零或者較小、按照標準可以結束測試的樣品，建議將測試時間延長在3週左右，若按照標準仍舊可以結束測試時，再停止實驗；如果樣品在採樣地點進行解吸實驗直到結束，總解吸氣含量測試結果將大于實驗室。
이자연해흡양품위대상，연구대기압력대매양해흡기함량측시결과적영향。결과표명：당양품종대기압력교저적채양지점반회대기압력교고적실험실후，매24 h 적해흡기함량측시결과명현감소，감소적폭도명현대우채양지점매24 h 감소적폭도；대우개시7 d 해흡기함량측시결과위령혹자교소、안조표준가이결속측시적양품，건의장측시시간연장재3주좌우，약안조표준잉구가이결속측시시，재정지실험；여과양품재채양지점진행해흡실험직도결속，총해흡기함량측시결과장대우실험실。
In this paper, the effects of atmospheric pressure on the test result of desorbed coalbed gas content were studied. It is indicated that after samples returned to laboratory of higher atmospheric pressure from sampling site of lower atmospheric pressure, the desorbed gas content decreased obviously of every 24h.For samples that the desorbed gas content is zero or very little during the first seven days and the test should be ended according to the standards, the test duration should be extended to about 3 weeks. If the desorption test is conducted at the sampling site until the end, the total desorbed gas content will be higher than that in the laboratory.
