coal digger是什么意思

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The mining craft of longwall mining method has many characteristics.

长壁采煤法的采煤工艺具有多重特点:顶分层采煤增加了要为下分层填设假顶的工作。

This Paper introduces building situation of high output and high efficiency and remarkable technical financial result from 1992,it makes modernized mining craft and coal production develop to high output and efficiency and high safety and high reliability with new technolog

概括介绍了自 1 992年以来高产高效矿井建设的状况及取得的显著的技术经济效果 ,运用高新技术使现代采煤工艺及煤矿生产向高产高效、高安全及高可靠性方向发

The choice principle of mining craft way is pointed out.

介绍了我国采煤技术的发展状况,对我国井下采煤技术进行了简要的论述,并提出了采煤工艺方式的选择原则。

Multiple optimization method on mining technique of BAO-Yushan coal mine;

宝雨山煤矿采煤工艺的多手段综合优选方法

The paper shows the full mechanized technology is applied and researched in Handan mine area,improved the equipment,optimized the mining technique,gave full play to full mechanized efficienc

介绍了综合机械化采煤技术在邯郸矿区的应用和研究,通过改进设备、优化采煤工艺、充分发挥了综采效能。

This article discussed the practice of technology system on safety and high efficiency from 6 aspects, including: synthetic control of gas, research of mining technique, new technique of supporting with bolts in coal roadways, new technique of geo-exploration, optimizing configuration of resource by adjusting work panels and faces, and building mines with high yield and high effect.

　从瓦斯综合治理、采煤工艺研究、新型煤巷锚杆支护、地质勘探新技术、调整采场布局优化资源配置和建设高产高效矿井等6个方面,论述了建立淮南矿区安全高效技术体系的实践经验,为建成高产、高效的淮南矿区打下了坚实的基础。

In this article,simply analyze and summarize complex mining attachment equipments and coal mining technology adopted on the present,introduce several coal mining methods adopted in the national coal mines,further give a theory reference for the national coal mines to choose complex mining equipments and coal mining methods.

对当前煤矿采煤工作面的综采配套设备和采煤工艺进行了初步的分析和总结,概括介绍了我国煤矿生产所采用的几种采煤方法,为我国各煤矿选用综采设备及采煤方法提供了理论参考。

Study and Practice on the Coal Mining Technology of the Rooms & Pillars Mining Mechanization Operated with Continuous Miners;

通过技术论证和经济比较，首次提出了连续采煤机配备履带行走式液压支架和连续采煤机、连续运输系统配备履带行走式液压支架两种房柱式短壁机械化采煤工艺系统。

In the paper, a multi-objective comprehensivc decision model of determining the optimal mining technology scheme for coalface is set up by using set-valued statistics principle and multi-objective decision method, and an applied example is given.

应用集值统计原理及多目标决策方法建立了一种确定工作面最优采煤工艺方案的多目标综合决策模型,并给出了应用实例。