矿井

The safety instrument self-dispatch system is designed through the extensive investigation and study of management for safety instrument dispatch in the colliery.

0引言在煤矿企业生产中，安全仪表是煤炭安全生产的基础保证，随着矿井安全要求提高，安全仪表的使用量不断扩大。

Intelligent control technology of large-scale equipments in comprehensive mechanized coal mining face (including the electric explosion-proof technique, control circuit design of essence safety type and double-engine double-speed dragging heavy load control technique of scraper conveyer); no exceeding limit gas safety and high efficiency emission technique (including air flow control strategy, control method, and etc.); failure protection technique for safe power supply of mine power grid (including two-grade selective electric leakage protection and phase sensitive protection technique, etc.).

关键技术分别为多局部通风机故障诊断和冗余控制技术（包括掘进工作面供电系统多源信息融合、故障测寻、故障诊断、多局部通风机三重冗余控制方法和控制策略等）；综采工作面大型设备的智能控制技术（包括电气防爆技术、本质安全型控制电路设计、刮板输送机双机双速拖动重载控制技术等）；瓦斯无超限安全高效排放技术（包括风量控制策略、控制方法等）；矿井电网安全供电的故障保护技术（包括两级选择性漏电保护和相敏保护技术等）。

According to the characteristic of mine hoist runned by control system,puts forward and uses tolerant control technology of integrate intelligent sensor to improve the stabilization safety and reliability of mine hoist control system in the sensor fault.

传统控制技术难以在故障情况下对矿井提升机的复杂控制系统实现有效控制，提出了在提升机控制系统中采用集成智能传感器容错控制方案来实现提升机的容错控制，以保证提升机在传感器故障情况下，系统仍能稳定可靠的运行，增强了系统的可靠性，避免了事故。

Then the fault forecast in mine hoist to steel wire rope wears away degree, get empty to move time, brake shoe wear away life, brake shoe clearance, remnant presses and brake disk deflection degree adopt Wavelet neural network in this paper, which have the important meaning to guarantee the mine hoist circulate efficiently safety.

因此本文采用小波网络对提升机钢丝绳磨损度、空动时间、衬垫磨损寿命、闸瓦间隙△、残压Pc、制动盘偏摆度δ进行故障预测。对保证矿井提升机安全和高效运行具有重要意义。

This article establishes two maths models of fuzzy reliable design for brake steel wire rope,which comprehensively uses fuzzy maths theory and reliable design method according to the study of brake steel wire rope of mine shaft.

以矿井井筒制动钢丝绳为研究对象，综合运用模糊数学理论及可靠性设计方法，建立了制动钢丝绳的 2种模糊可靠性设计数学模型，探讨了模糊变量与随机变量同时存在的制动钢丝绳的可靠性设计方法，并给出了计算示例。

UHMWPE pipe is extensively used of the transportation of all kinds of powder、thick liquid and gas,such as the handing of mine powder 、grain、river course silt,and ash discharging of power plant、utilization of water of sea ang river、drainage of mine well、and the transport of cruel oil and gas,and also in the fields of the convey of chemical raw material and industry"three wastees"etc.

超高分子量聚乙烯管材广泛应用于各种粉体、浆液、气体的输送，如矿粉、粮食、河道泥沙处理、电场排灰，海、河水利用、矿井排水，油品、燃气输送，化工原料及工业&三废&的输送等领域，可代替铁管，钢管，不锈钢管和合金钢管。

Mine ventilation system optimization is a decision-making problem about complexity system which is composed of many integrating, interrelating and interdependent quantitative and qualitative factors.

矿井通风系统优化是一个有定性和定量相互结合、相互关联、相互制约的众多因素构成的复杂决策问题。

Mine ventilation system optimization is a quantitative and qualitative decision-making problem about complex system which is composed of many integrating, interrelating and interdependent factors.

矿井通风系统优化改造是一个由定性和定量相结合、相互关联、相互制约的众多因素构成的复杂系统优化决策问题。

In Bendigo, another boom town, you can see opulent buildings, explore a rich Chinese heritage and drop the equivalent of thirty-storeys in the Central Deborah Gold Mine.

在另一个新兴城市班地戈，您可以欣赏豪华的建筑，探寻丰富的中国传统，并在中央黛博拉金矿走下相当于三十层楼深的矿井一看究竟。

Today the Trinities still bear the scars of extensive gold mining operations, ranging from placer mining that rerouted river and stream beds to a scattering of abandoned mining tunnels, some of which were operated into the 1930s.

直至现在我们还能看见采金给这片地方带来的伤痕，对藏金地的大面积的搜索留下了许多废弃的矿井，变更河床以及溪床的水流路线而注入其中，它们有些开槽于19世纪30年代。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。