矿井

With the mine scale enhance and the mine toward deep level, the problem of the timbering and the maintenance of soft rock roadway is becoming more aculeated. It is the key of the mine toward deep leve and the safety mine Whether can we solve the problem of soft rock roadway timbering.

随着矿井开采规模的加强和开采向纵深发展，软岩巷道的支护与维护问题显得越来越突出，能否解决好软岩巷道的支护等问题，是煤炭开采向纵深发展和安全生产的关键。

The alkalescent condition reduces the mass concentration of iron ions and fastens the nitration reaction of ammonia nitrogen, and leads to the concentration of nitrate.

偏碱性条件使铁离子质量浓度降低，同时促进了氨氮硝化反应进行，使矿井水中硝酸盐和亚硝酸盐质量浓度增加。

Total reserve of mining area coal is in 100 million tons of above, it is Jiangxi saves one of 4 big companies yield coal, have 5 opposite to produce mine, main production is high grade soft coal, anthracitic wait industrial dynamical coal.

矿区煤炭总储量在一亿吨以上，是江西省四大产煤企业之一，现有五对生产矿井，主要生产优质烟煤、无烟煤等工业用动力煤。

Taking the multi-rope friction hoisting as researching object,the theoretical analysis is given out for the dynamic antislip safe coefficient .

以多绳摩擦提升机为研究对象，对其动防滑安全系数进行理论分析，指出影响的因素，并结合实例应用MATLAB语言进行计算机仿真，作定量说明，从而提出增大多绳摩擦提升防滑安全系数的合理措施，对矿井安全生产具有指导性作用。

Dust and aspiratory dust were monitored personally on the full-mechanized mining work face, full-mechanized tunneling work face and gun tunneling work face in the coal mine to investigate the harm of aspiratory dust to the workers underground.

针对呼吸性粉尘对矿井工人身体健康的危害，对煤矿综采工作面、综掘工作面、炮掘工作面等进行分工种个体性的全尘和呼尘监测，测定了各工作面粉尘的浓度、粉尘分散度和SiO2浓度。

The backfilling methods with refuse were beneficial to improving mining rate of resource and prolonging mine life.

提出了3种矸石充填开采对提高资源采出率、延长矿井服务年限的重大意义及推广应用价值。

The Longgu mine pit which total investment RMB3.06 billion Yuan, the annual output amounts to 10 million tons, will be official the coal in 2007 primarily, it will cause Longgu town to become the heavy industry processing base which takes the coal resources as the leadership, gethering coal electricity, carbonification, machine-finishing.

能源以总投资30.6亿元，年产量达1000万吨，于2007年正式出煤的龙固矿井为主，将使龙固成为以煤炭资源为主导，拓展煤电、煤化、机械加工等重工业加工基地。

Although some of its coal technology, but still not enough to meet the curr 化学工程论文 ent mine development and production needs.

尽管一些煤矿对其进行的技术改造，但仍然满足不了当前矿井发展和生产的需要。

Total Dairi resources have been upgraded to 17.9 million tonnes, grading 12.6% zinc and 7.3% lead and should extend the project beyond its initial 7-year lifespan.

Dairi项目总的资源增加至1，790万吨，锌和铅的矿石品位分别为12.6％和7.3％，该项目原先设计的7年矿井寿命也被延长。

In view of problems of incomplete kind and low reliability of protection of mine belt conveyor, the paper designed an integrated protection system of belt conveyor, analyzed common faults of belt conveyor, introduced hardware structure and software design of the system, identified measuring methods of belt faults of speed, temperature, fog and disalignment.

针对现有大型矿井胶带输送机保护种类不全、可靠性低等问题，设计了一种胶带输送机综合保护系统，分析了胶带输送机的常见故障类型，介绍了系统的硬件结构和软件设计，确定了胶带速度、温度、烟雾、跑偏等故障的检测方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。