煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2014年
3期
100-103
,共4页
黄土%粉煤灰%充填材料%正交实验
黃土%粉煤灰%充填材料%正交實驗
황토%분매회%충전재료%정교실험
loess%fly-ash%stowing material%orthogonal test
针对传统煤矿充填材料对粉煤灰的需求量较大、成本较高的问题，研究将西北地区广泛存在的黄土作为充填材料的可行性，通过试验得到煤矿新型充填材料的配比。试验采用黄土、粉煤灰为主料，水泥、石灰碱性材料为辅料，掺入适量的外加剂，根据粉煤灰的活性碱激发原理，利用正交原理进行五因素四水平试验，分析了试验各因素对试样主要指标的影响，得出了满足要求的试验配比方案。试验结果表明：将黄土作为原材料和粉煤灰共同作为煤矿充填材料是可行的，黄土粉煤灰料浆浓度宜为60％～65％；黄土粉煤灰质量比1∶1.5～1∶3；辅料占固料质量30％～33％，外添加剂占固料质量5％～7％，养护期为28 d。
針對傳統煤礦充填材料對粉煤灰的需求量較大、成本較高的問題，研究將西北地區廣汎存在的黃土作為充填材料的可行性，通過試驗得到煤礦新型充填材料的配比。試驗採用黃土、粉煤灰為主料，水泥、石灰堿性材料為輔料，摻入適量的外加劑，根據粉煤灰的活性堿激髮原理，利用正交原理進行五因素四水平試驗，分析瞭試驗各因素對試樣主要指標的影響，得齣瞭滿足要求的試驗配比方案。試驗結果錶明：將黃土作為原材料和粉煤灰共同作為煤礦充填材料是可行的，黃土粉煤灰料漿濃度宜為60％～65％；黃土粉煤灰質量比1∶1.5～1∶3；輔料佔固料質量30％～33％，外添加劑佔固料質量5％～7％，養護期為28 d。
침대전통매광충전재료대분매회적수구량교대、성본교고적문제，연구장서북지구엄범존재적황토작위충전재료적가행성，통과시험득도매광신형충전재료적배비。시험채용황토、분매회위주료，수니、석회감성재료위보료，참입괄량적외가제，근거분매회적활성감격발원리，이용정교원리진행오인소사수평시험，분석료시험각인소대시양주요지표적영향，득출료만족요구적시험배비방안。시험결과표명：장황토작위원재료화분매회공동작위매광충전재료시가행적，황토분매회료장농도의위60％～65％；황토분매회질량비1∶1.5～1∶3；보료점고료질량30％～33％，외첨가제점고료질량5％～7％，양호기위28 d。
The need of fly-ash is large and its cost is high as traditional stowing material.The feasibility of loose which exist extensively in Northwest area as stowing material was research.Proportion of new-style stowing material was obtained by 5-factor and 4-level orthog-onal test in which taking loose , fly-ash as major ingredient , cement and limb as auxiliary ingredient , and adding some additive.The in-fluence of every factors on main index was analyzed.Test results were showed as follows.It was feasible that taking loose as sto-wing.Rational loose fly-ash slurry concentration was 60%-65%, quality ratio of loose and fly-ash was 1 ∶1.5-1∶3, auxiliary ingredi-ent's quality ratio was 30%-33%, additive was 5%-7%, and conserving time was 28 days.
