矿业

To select the key parameter of continuous technology is to determine the cutting force of bucket wheel excavator.

华能伊敏煤电公司，内蒙古呼伦贝尔021134 [2]中国矿业大学能源与安全工程学院，江苏徐州221008

The Company is engaged in cement production equipment of the mining equipment business for many years, mainly the production of large-scale counter-palate-hammer crusher and cement conveyor ball mill hoist separator, and so on.

本公司从事水泥设备·矿业设备的生产经营已有多年，主要生产各种大型腭式·反击式·锤式破碎机以及水泥输送机·球磨机·提升机·选粉机等。

Based on the thermal measurements and the characteristics of equipment, process and operation, heat utilization status of the chain grate of Shougang Mining Company grate-kiln system is analyzed and diagnosed. According to the result, the heat losses of the chain grate is small.

在对首钢矿业公司链篦机－回转窑系统中链篦机进行热工测试的基础上，结合生产设备、工艺及运行特点，分析和诊断了其热能利用状况。

As an example of the small and middle mineral enterprises such as fire-resistance clay and iron ore categories, it gives the selection of model, idiographic policy, and operating methods to fulfil the industry cluster of small and middle mineral enterprises.

中小型矿业企业在区域经济发展中具有重要作用，是培育新的经济增长点，解决地区就业问题等方面的载体。

The paper introduces the working principle of MCGS, at the same time; it illustrates application of automatic control in closed-circuit grinding in PanZhiHua MIDI concentration plant.

论文介绍了MCGS(Monitor and Control Generated System，通用监控系统)的工作原理，以及该系统在攀钢矿业集团密地选矿厂磨矿车间的组态应用。

They were welcomed with open arms to Cloud City and went to work in the mining guild.

他们在云城受到热烈欢迎，还在矿业公会找到一份工作。

Though profitable, Cloud City is small enough not to be noticed by larger authorities such as the Mining Guild.

尽管利润丰厚，但云城还是太小，无法一起像矿业行会这样的更大型的组织的注意。

By the measures such as measuring the risk tendency of underground pressure eruption, evaluating risk index of underground pressure eruption, observing electromagnetic radiation, water injection in coal seam, long drill hole blasting, roof broken in gob area etc., realized safe coal production.

近年来鹤岗矿业集团公司的南部5个煤矿相继发生冲击地压现象，且造成不同程度的财产损失，通过采用冲击危险倾向性测试、冲击危险指数评估、电磁辐射观测方法，采用煤体注水、深孔爆破、采空区断顶等解危手段，实现了煤矿的安全生产。

This paper briefly introduced the situation of transformation concerning the low-pressure brake power of the hoist in suoli coal mine.

简要介绍淮北矿业集团朔里煤矿主井提升绞车低压制动电源改造情况。

Based on low frequency drive system of the DPB550/150 Ⅱ type an intelligent control strategy applied to the speed control of AC mine hoist is described and a satisfactory control performance is obtained. Some problems, such as unsatisfactory control performance of AC coal mine hoist in deceleration and low speed drive period, and the difficulty of obtaining the constant deceleration during changing load, are solved.

以DPB－550／150－I型中国矿业大学低频拖动系统为基础，应用智能控制策略，实现了交流提升机的速度控制，得到了较好的恒减速控制性能，解决了矿井交流提升机在减速段和爬行段的速度控制性能较差以及在负载变动时，很难实现恒减速的问题。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。