Survy sampling and forecasting model on coal output of town and village coal mines in China;
全国乡镇煤矿原煤产量抽样调查与预测模型
Mathematical model of lump coal production for continuous miner and analyses of influencing factors;
连续采煤机块煤产量数学模型及其影响因素
Making use of genetic algorithms superiority in optimizing in nonlinearity problem in Matlab software,the continuous miner different lump coal production is optimized,and continuous miner design parameters of a different lump coal production are obtained at the optimal values.
以连续采煤机设计参数为研究对象,建立了不同块煤产量与参数之间的目标函数、设计变量和约束条件。
It is pointed that using flotation column and pressure filter as flotation clean coal pressure filter can improve slime-water processing capacity and clean coal yield in the case of keeping a consistency in the raw material coal property and feed coal concentration.
分析了兴发选煤厂煤泥水处理系统的改造原因,并介绍了改造后的工艺流程主要特点,指出在原料煤性质、入料浓度相同的情况下,采用以浮选柱与加压过滤机作为浮选精煤压滤机联合使用,可提高选煤厂煤泥水处理能力和精煤产率。
Medium consumption is reduced; clean coal yield and the profit of the enterprise are improved by transforming its flotation system pointedly.
分析了平岗矿洗煤厂的生产现状及其存在的问题,有针对性地对其浮选系统进行技术改造,降低了介耗,提高了精煤产率及企业的经济效益。
The quality variation of quality requirement from market are met,and the clean coal yield and economic benefit are raised.
采用大型三产品重介旋流器分选原煤,适应了原煤煤质变化及市场对产品质量要求,提高了精煤产率及经济效益。
When the coal price is good and the enterprise fund is abundant,coal business enterprise should exert oneself to develop the non-coal industry,preparing early for the future resource.
煤炭价格较好、企业资金较充裕时,应着力发展非煤产业,为将来资源枯竭早做准备。
Development strategy research of non-coal industry of coal large group enterprise is an important part of enterprise development.
煤炭大集团企业非煤产业的发展战略研究成为企业发展的重要部分,多元化、跨区域经营是煤炭大企业集团非煤经济的发展战略。
The problem and difficulties in non-coal industry development of state-owned coal enterprise firstly are analysed,and then proposes the strategy and the direction of the development based on our country actual circumstance of the coal enterprise.
首先分析了国有煤炭企业非煤产业发展中存在的问题和困难,然后根据我国煤炭企业的实际情况,提出了非煤产业发展的战略和方向,最后就非煤企业当前有发展前景的一些具体项目提出了自己的建议。