查询词典 coal vase

In this research, Delphi language is adopted to work out calculation procedure of coal-pulverizing system, use this procedure to perform checking calculation, and act as the theoretic basis of operating adjustment. The operation characteristics and controllable parameters are completely studied to reduce the cost. The double-stage separating technique is adopted to improve separation efficiency. The pulverized coal exhauster is reformed based on the outcome of resistance calculation to save power consumption of pulverized system. The wearing problem of steel balls is studied, has set up the stable state mathematics model of steel ball wear to certain load ball system and addition ball system.

本课题采用Delphi语言编制了制粉系统计算程序，用此程序对该制粉系统进行了校核计算，作为制粉系统优化调整的理论根据，从中储式制粉系统的运行特性、可控参数方面进行了全方位的研究，采用内筒中增设螺旋隔离分离元件的双级分离式细粉分离技术，提高细粉分离效率，根据制粉系统阻力计算结果对排粉机进行改造，减少制粉电耗。

This product is applicable to coal mine where has explosible dangerous gas and coal dust,It is used for controlling direct starting stop and reversion of three-phase squierrel cage type asynchronous motor whose rated current up to 400A in system of AC50Hz rated voltage 1140V or 660V, Meanwhile it protects the electromotor and relative circuit, The starter can be combined with firedamp sensor and used to test the consistency of mining working area,the starter will trip when it exceed the limit ;adopt intrinsic safety type circuit for the control circuit; possess the function of local control and remote control by single set and multi sets procedure control; display working voltage current and gas consistency can remember fault parameter

该产品适用于具有爆炸性危险气体和煤尘的矿井中，在交流50Hz，额定电压为1140V或660V ，控制额定电流只400A的三相鼠笼式异步电动机的直接起动，停止及反转，同时对电动机及有关电路进行保护，起动器可与甲烷传感器相连接用于检测才掘工作面的甲烷浓度，当其超限时起动器跳闸；控制电路采用本安型电路；具备单台就地控制与远方控制及多台程序控制功能，能显示工作电压、电流、瓦斯浓度，并能记忆故障参数。

The finer sizes have lower minimum explosible concentrations and higher explosion intensity. When particle sizes of coal dust are less than 75 μm,minimum explosible concentrations and explosion intensity approach a limiting value. In the concentration range measured ( less than 700 g/m3), maximum explosion pressures, maximum rates of pressure rise and explosion indices increase along with the increase of coal dust concentrations. Explosion intensity rapidly enhances along with ignition energy augmenting. Explosion reaction is weak while ignition energy is less than 1 kJ.

煤粉越细，其爆炸下限越低，爆炸烈度越大，但煤粉细到75 μm以下后，这种变化趋势趋缓；在所测浓度范围内(小于700 g/m3)，最大爆压、最大压力上升速率和爆炸指数均随煤粉浓度增大而增大；爆炸烈度随点火能增大而迅速增强，点火能小于1 kJ时各煤样在不同浓度的爆炸都很微弱。

This project is mainly to pile the coal district to control the coal wks in an all-round way, the customer uses the searchlight to control the whole facty, but 100m exteri searchlight cant totally meet the lighting requirement at the night, the customer requires me strictly to the volume.

这个工程主要是对煤厂堆煤区进行全面监控，客户使用探照灯对整个厂区进行监控，但是在夜间100m外探照灯不能完全满足照明要求，客户对体积要求比较严格。

In coal gasification techniques, the gasifier is the key equipment which directly affects gasification characteristics, therefore flameless oxidant technology was applied to the design of new gasifier for high ash melting coal, and gasification characteristics in the gasifier were carried out by not only experiments under cold state and therma1 state, but also numerical simulations in this paper.

由于气化炉是煤气化技术中的最关键设备，因此，本文以高灰熔点煤的高效气化为背景，归纳分析了各种先进干煤粉气流床气化炉的炉型结构，将无焰氧化技术应用于粉煤气化，提出了一种基于无焰氧化的新型干法进料煤粉气化炉，进行了炉内冷态、煤粉气化的热态试验和数值计算，分析了高灰熔点煤在该气化炉中的气化特性，并以此为基础，对气化炉的结构进行了优化，提出了无焰氧化分级气化炉，对高灰熔点煤在该气化炉中气化特性进行了数值计算与分析。

Aiming at the major influencing factor of the logistics cost of coal enterprise as well as the non-linear characteristic of the coal enterprise logistics cost and the superiority that the neural network has in the solution of complex nonlinear system question, propos to use the BP neural network to do the forecasting of the logistics cost, establishs the forecast model of the logistics cost and do simulation and forecasting by frondose dates, the result indicates the precision of this forecast method is high, the convergent rate is quick, is one feasible forecast method.

重点针对影响煤炭企业物流成本的因素以及煤炭企业物流成本所具有的非线性特点和神经网络在解决复杂非线性系统问题方面所具有的优势，提出了采用BP神经网络来进行物流成本预测的方法。建立了基于BP神经网络的物流成本预测模型并应用具体数据对模型进行了模拟和预测，结果表明该方法预测精度高，是一种实际可行的预测方法。

The study of coal wetting heat effect, zeta protential and adsorption of frother on coal/water showed that the frother is of collecting performance again.

研究表明，煤炭浮选非极性捕收剂对起泡剂的起泡性能具有显著的影响，具体效果与化学组成、浓度及配比有关，这一点对于煤炭浮选用药具有重要的意义。

The jet samples are more compact than the coal samples because the honeycomb-like apertures of coal are filled with a large number of resinite arid gelatin for gelatination resulting in the changes of loose structure.

煤精与煤的产出环境相似，但宝石学特征差异较大，推断前者的成玉机制主要是由于含有大量且具有胶结作用的树脂体和凝胶体充填了煤的蜂巢状孔洞中，使煤较疏松的结构发生了改变而形成。

A coal gas generant unit is evaluated by using the program, the inh- erent total criticality of the coal gas generant unit is medium, then safety compensatory measures are applied to the unit, and the real total criticality of the unit is reduced, and the result proves that using safety measures is able to reduce the total criticality of the petrochemical company.

运用该计算机程序对某煤气发生单元进行了评价，得到该单元的固有总危险性等级为中等，经过安全措施补偿后，现实总危险性分值大大降低了，说明采取安全对策措施可以降低企业总危险性大小。

This article in view of this kind of situation, to Da\\\anshan coal mine rockburst mechanism geostatic pressure mechanism, influencing factor, coal bed impact tendentiousness has conducted the research, promulgated the impact geostatic pressure through the numerical simulation to have the rule, to further prevention lay the foundation.

本文针对这种情况，对大安山矿冲击地压机理、影响因素、煤层冲击倾向性等方面进行了研究，通过数值模拟揭示了冲击地压发生规律，为进一步防治工作奠定基础。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。