压力输送,pressure transportation
1)pressure transportation压力输送
1.Apressure transportation system is selected by calculating,it can successfully deliver the coarse tailings to the tailingspile.针对选矿厂处理白云鄂博磁铁矿的七系列阶段磨矿阶段选别工艺工业试验一段弱磁选尾矿粒度较粗,不能自流输送至尾矿库的问题,通过计算选择一套粗粒尾矿先浓缩后压力输送的系统,成功地将粗粒尾矿输送至尾矿库。
英文短句/例句
1.alemite grease fitting压力输送润滑脂的润滑器
2.Resistance characteristics of vertical bend in dense-phase pneumatic conveying of pulverized coal under high pressure高压密相气力输送垂直弯管阻力特性
3.A current of high potential is used in transmitting electric power over long distances.高压电流被用来远距离输送电力。
4.A current of high potential is used in transmitting electric power over long distance .高压电流被用来远距离输送电力
5.Wedge-shaped Extrusion Resistance Analysis of Flat-pipe Belt Conveyor扁管带式输送机的楔形挤压阻力分析
6.Cause Analysis of Transport Capacity Decrease of Dense Phase Pneumatic Conveying System with Positive Pressure正压浓相气力输送系统输送能力下降的原因分析
7.EHV/UHV AC TRANSMISSION CAPABILITY ANALYSIS超、特高压交流输电系统的输送能力分析
8.Power is transmitted over long distances with less loss at high voltage than at low voltage.电力在高压下作长距离输送，能耗比低压时小。
9.Calculation of Pressure Loss in Pneumatic Transmission for the Process of Food Manufacture;食品生产过程中气力输送的压力损失计算
10.Resistance characteristics of dense-phase pneumatic conveying pulverized coal with various particle size under high pressure高压浓相变粒径煤粉气力输送阻力特性
11.Treatment to Anomaly of Positive-pressure Fly Ash Pneumatic Conveying System and its Optimized Operation正压飞灰气力输送系统异常处理与优化运行
12.Experimental study on pressure loss feature of coal slurry pipeline transportation煤泥管道输送压力损失特性的试验研究
13.Effect of Mean Particle Size of Pulverized Coal on Dense Phase Pneumatic Conveying at High Pressure煤粉平均粒径对高压密相气力输送的影响
14.Study of the relationship between the load and indentation resistance of the conveyor belt带式输送机橡胶挤压阻力与载荷的关系研究
15.Numerical Simulation Research of Proppant Transportation in Hydraulic Fracturing水力压裂中支撑剂输送的数值模拟研究
16.Dense-phase Pneumatic Conveying for Pulverized Coal with Different Mean Particle Size Under High Pressure不同平均粒径煤粉的高压密相气力输送
17.The Numerical Simulation on Air Cushion Pressure Field of Air Cushion Belt Conveyor气垫带式输送机气垫压力场数值模拟研究
18.Experimental Study on the Characteristics of High-pressure and Dense-phase Pneumatic Conveying of Different Pulverized Coal不同煤粉高压密相气力输送特性实验研究
相关短句/例句
Delivery pressure输送压力
3)line pressure输送管压力
4)feed pressure,pressure feed压力输送<火>
5)pressure-feed压力输送的
6)pneumatic conveying气[压]力输送
延伸阅读
矿浆压力输送矿浆压力输送pulp transport under pressure1肠矿浆压力输送系统示意图1一矿浆池;2一矿桨泵;3一管道; 4一矿浆接受设施矿浆压力输送计算包括下述五个步骤:(1)根据矿石的物理化学性质、矿石杠度组成、矿桨浓度等，确定矿浆的临界流速。为防止矿粒在管道中沉淀，对于长距离、高浓度输送精矿的管道，应通过试验确定其临界流速;对于短距离管道应先计算出临界速度，再根据管内实际流速大于或等于临界流速的原则选定管径。(2)求出选定管径的各种流速(流量)条件下的清水总扬程，并绘制出清水管路特性曲线;清水总扬程的计算式为H一刀H十H{L+HI+H。式中H为泵送清水的总扬程，m;HH为几何扬程，m;H，L为沿程水头损失，m;H，为总局部水头损失，m;H二为出口速度水头损失，m。(3)借助清水管路特性曲线，求出矿浆管路特性曲线。矿浆压力输送有两种情况:对于矿石粒度小于10如m，质量浓度C、簇30%，体积浓度C:毛15%的均质矿浆，不需要考虑颗粒沉降，其管路水头损失和清水的基本一致，因此矿浆管路特性与水头损失都可按清水特性进行计算。对于矿石的中值粒径在100一300仁m之间，质量浓度c*乡40%、体积浓度Cv镇20%的矿浆，其水头损失的特点是:当矿浆流速为其临界流速的0.7倍(二一0.7。:)时，矿浆的水头损失与清水以矿浆的临界沉降速度(v一:，:)流动时的水头损失相同;当矿浆的流速为其临界沉降速度的13倍(v一1.3、L)时，矿浆的水头损失与清水以同样流速流动时的水头损失相同，可据此在清水管路特性曲线图上绘出矿浆管路特性曲线。在相同转速和相同条件下泵送矿浆的扬程H。和效率和一般低于泵送清水时的扬程11和效率叩，计算时应加以修正，选泵时则需增加10%的扬程裕量。(4)泵送矿浆时的轴功率按下式计算: 1只1N‘、一望些鱼卫玉 1 02夕，Nn一丝卫赵1 1027式中N。为输送矿浆时泵的轴功率，kw;H‘m为选用的矿浆扬程，m;H‘为选用的清水扬程，m;Qm为矿浆流量，L/s;尸。为矿浆密度，t/m“;叭为泵送矿浆时的效率，%;夕为泵送清水时的效率，%。(5)根据泵的轴功率，考虑泵的起动和流量波动等因素选配电动机，电动机功率(kW)按下式计算: N一K丛 Vo式中K为功率富裕系数;N。为泵输送矿浆时的轴功率，kw;甲。为传动效率，%。
