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- The effects of different drawing interval and top-coal fragmental size on flow character of coal-gangue and sand, and on mixed degree of coal and gangue were analyzed during drawing top-coal. 分析了不同放煤步距、顶煤块度对放煤过程中煤矸砂流动形态、混矸程度的影响。
- The specimens of sifted coal gangue with different particle size were admixed with Portland cement to prepare the coal gangue-cement system with different grain grade. 通过筛分得到不同颗粒级配的煤矸石,将其与硅酸盐水泥进行混合,得到具有不同颗粒级配的煤矸石-水泥体系。
- The enormous coal gangue is difficult to use and causes environment pollution. 煤矸石堆积如山,难以利用且污染环境。
- The select principle of drawing interval was given for different coal-gangue fragmental size. 给出了不同煤矸块度条件下的放煤步距选取原则。
- The magnetized sodium silicate has an intensive depression effect on coal gangue and pyrite but no infulence on coal. 磁化处理后水玻璃对煤矸石、黄铁矿的抑制效果增强,而对煤无明显影响。
- So the magnetization treatment can influence the flotation of both coal and coal gangue, with the coal in particular. 磁化处理捕收剂、起泡剂对煤和煤矸石的可浮性均有影响,对煤的影响尤为显著。
- Practice on Harnessing Spontanrous Combustion of Coal Gangue in Datong Coal Mines Group Co. 大同煤矿集团公司自燃矸石山治理实践。
- Glass-ceramics used for architecture decoration was prepared by using red mud, fly ash, coal gangue and so on as raw materials. 摘要本研究利用山东铝业公司固体废弃物赤泥、粉煤灰、煤矸石等为主要原料,制备了装饰材料用微晶玻璃。
- This paper introduces all methods for estimation of fragment size distribution after blasting in opencast mining, new methods and their developing trend at abroad. 本文介绍了各种用于测量露天矿爆破后岩石块度分布的方法和国外采用的最新方法及发展动向。
- The influence of coal gangue and the activator on the hydration property of cement is studied in this paper. 研究了煤矸石的种类、掺量以及化学激发剂对水泥水化性能的影响。
- Based on the thermodynamics principle, the chemical explosion mechanism of coal gangue heap was studied. 应用热力学原理研究了煤矸石山与雨水作用的化学爆炸机理。
- It is the ideal equipment for production of various hollow brick, shale, coal gangue and coal ash. 是生产各种空心砖及页岩、煤矸石、粉煤灰制砖的理想设备。
- Using coal gangue as raw material, we made a kind of new type polymer reinforcing filler for rubber by ultr. 本论文用煤矸石作原料,通过超细粉碎,表面改性制成了一种高分子聚合物的补强填充剂。
- The chemical activator can promote the early hydration and increase the degree of reaction of coal gangue. 化学激发剂促进煤矸石的早期水化,提高其反应程度。
- Our company is the first to the quality of raw materials for coal gangue, coal carving art mouth. 我公司是全国首家以优质煤矸石为原料的,煤雕艺术口。
- The paper deals with the feasibility of making complex polymeric aluminum and ferric chloride(PAFC) from coal gangue. 论述了利用煤矸石制取复方聚合铝铁的可行性。
- This is then followed by the packet payload, which is fragmented according to the currently agreed-upon fragment size before it is serialized over the connection. 跟着包的有效负载的数据,他是根据当前协商的碎片的大小的碎片数据。数据碎片化是在他所在的链接上序列化之前进行的。
- Porous permeable bricks were made with gold tailings as the main material and coal gangue as pore-forming agent. 以黄金尾矿为主要原料,以煤矸石作成孔剂,制备了多孔透水砖。
- Replaced some cement clinker by flue dust activated coal gangue as admixture and tested its setting time and strength. 摘要以窑灰活化煤矸石为混合材取代部分水泥熟料,测试其凝结时间、强度;
- deoxyribonucleic acid fragment size 脱氧核糖核酸片段长度