查询词典 coal hoist

According to"Coal mine Safety regulation"the request,this article mainly analyzes the relation between the hoist's brake torque and brake deceleration in the equipollent tail rope promotion system,produced the relational curve of deceleration and the gravity characteristic coefficient and the braking moment multiple.

根据《煤矿安全规程》的要求，通过对在等重尾绳提升系统中制动力矩与制动减速度关系的分析，给出了减速度与重力特性系数和制动力矩倍数的关系曲线。

According to the concerned rules in 《safety regulations of Coal Mine》 author derived formulae to determine the overwind height, so a theoretical basis for mine hoist design was provided.

目前各种资料对此均无明确规定，作者根据《煤矿安全规程》的有关规定，导出了过卷高度的计算公式，为矿井提升机设计提供理论依据。

Shanjiaoshu Coal Mine Coal Washing Plant,a simple reliable preventing overwind device is installed for JDD-4-22 hoist in June 2003,obtain good effect,stops overwind trouble happen.

山脚树矿洗煤厂于 2 0 0 3年 6月为JDD— 4— 2 2绞车设计安装了一套简单可靠的防过卷装置，取得了良好的效果，从根本上杜绝了过卷事故的发生。

Was established in March 2008, mainly to sales of coal as the main equipment: Mine fan, Hair Dryers Mine, mine hoist, cars, light rail, the chute, wire rope, and rolling, LED light source Miner'slamp cold, anti-explosive coal locomotive, mining scraper plane, trailing bucket ROCK LOADER, anti-explosive switches, optical instrument seized Watts, Alarm, self-help, electronic wind table, monitoring systems, mine cable, blasting - Lines, such as bus blast.

重庆市立迅矿山设备有限公司成立于2008年3月，主要以销售煤矿设备为主体：矿用风机、矿用风筒、矿用提升绞车、矿车、轻轨、溜槽、钢绳、地滚、LED冷光源矿灯、防爆煤机车、矿用刮板机、耙斗装岩机、防爆开关、光学瓦检仪、报警仪、自救器、电子风表、监控系统、矿用电缆、爆破子线、爆破母线等。

Steel rope is the important component of hoist device in coal mine and haulage-railway track under the shaft. It is an important assembly that connects the hoist container and transmits power.

钢丝绳是矿井提升设备以及井下牵引轨道运输设备的重要组成部分，是连接容器和传递动力的重要部件。

Wire rope is an important component of hoist equipment in Coal Mines, accidents caused by rope broken frequently occur, which make incalculable economic loss to Coal mine industry and the Nation, and the problem must be highly focused on by mine safety managers.

钢丝绳是煤矿提升设备的重要构件，因钢丝绳断绳引起的重大伤亡事故频繁发生，给国家、煤矿造成不可估量的经济损失，这是值得煤矿安全管理人员高度重视的问题。

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。

The scheme design and recovery evaluation of low calorific value coal from gangue ;2. Research of switched reluctance motor control system for coal gangue hoist;3. To avoid wasting of coal resource,mitigate mixing of gangue into coal and raise benefit of mine,it is decided to carry out feasibility study of dry dressing of gangue -containing coal.

霍林河1#露天矿煤层赋存条件复杂，采用大型设备有绝大部分薄煤层无法分采，而造成煤炭损失，为了降低煤炭资源的浪费、减少矸石混入、提高煤矿的经济效益，决定对杂煤进行干式分选的可行性分析研究。

The equipment uses upper/lower rotary chain-bucket to hoist coal from carriage to certain height and unload the coal onto horizontal strap, and then the coal is unloaded onto inclined strap machine, which cast the coal to one side of the railway.

该设备是利用上下回转链斗，将煤从车箱内提升到一定高度卸在水平皮带机上，而后转卸至倾斜皮带机上，由倾斜皮带机将物料抛置轨道的一侧。

A safety monitor and protective device of hoist in local coal mine is introduced.It can indicate the movement and the position of the hoist vessel in the shaft directly,send out a signal slowing down the vessel in time.When the vessel is over-rolled up ,the hoist will be braked automatically and immediately.

文摘：本文介绍了一种地方煤矿提升绞车安全监测与保护装置，能直观地指示提升容器的运动及在井筒中的位置，设置了比较完善的电器保护系统，能及时发出减速信号，当发生过卷时能自动紧急停车。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。