Thinking of the character of air current field in the heading face with forced ventilation, during the processes of study, the dust distribution in the face is pided into three regions, it is jet flow region, returning region and whirlpool region.
针对压入式通风掘进工作面风流流场结构特点 ,把工作面粉尘分布划分为 3个区 :射流区、回流区及涡流区来进行研究 ,建立了 3区粉尘浓度计算模型 ,得出了压入式通风掘进工作面3区粉尘分布不均匀的规律 :即回流区、涡流区粉尘浓度较高 ,分布较均匀 ;射流区粉尘浓度相对较低 ,且粉尘浓度沿射程不断变化 ,离风筒出风口越远 ,射流断面粉尘平均浓度越高 ;射流卷吸比对掘进工作面粉尘分布不均匀性影响较大 ,射流卷吸比越大 ,整个工作面粉尘分布越均匀 。
These machines create a highly abrasive washing action that separates aggregate from dust, soluble clay, and wood particles.
这种机器能产生强烈的摩擦，揉搓，清洗动作将砂石与粘土及粉尘分离开。
Progress of research on techniques to mass cultivate and isolate Dermatophagoides farinae and Dermatophagoides pteronyssinus
粉尘螨和屋尘螨饲养及分离技术研究进展
A new type cyclone to separate super-fine powder from high temperature gas
新型旋风分离器去除高温气体中超微粉尘
dust separator
"尘埃分离器,见 precipitator"
The result may be used for
这一结果在粉尘颗粒分离、分级中有广阔的应用前景。
methods of measuring dust concentration in flue gas
废气中粉尘浓度分析法
The Preparation and Modification of Activated Carbons Separated from the Fly Ash;
利用除尘灰分离碳粉制备活性炭及其改性应用研究
Study on the Preparation of Processing and Properties of Granular Activated Carbon Separated from Fly Ash;
利用除尘灰分离碳粉制备颗粒活性炭的工艺及性能研究
Study on the Preparation Technologies and Properties of Activated Carbon Separated from Fly Ash;
利用除尘灰分离炭粉制备活性炭的工艺及性能研究
DETERMINATION OF FREE SILICON DIOXIDE IN DUST BY INFRARED SPECTROPHOTOMETRY
红外分光光度法测定粉尘中游离二氧化硅的含量
Bag dust separator depends on knit of strain cloth as filter material to come achieve purpose which separating containing powder from the dust.
袋式除尘器是依靠编织的毡织滤布作为过滤材料来达到分离含尘气体中粉类的目的。
The Analysis of Mechanical Behaviors of Dust Particle in ESP
电除尘器中粉尘粒子的力学行为分析
Measurement of Dust Dispersivity is Very Important to Evaluate Dust Exposure Level
粉尘检测中粉尘分散度检测重要性的探讨
Simulation of the influnce of dust particles on the airflow distribution within electrostatic precipitation
粉尘对电除尘器气流分布影响仿真研究
Screening and identification of dominant allergens of Dermatophagoides pteronyssinus and Dermatophagoides farina
屋尘螨和粉尘螨主要变应原的筛选和分析
We analyse the factors such as dust resistively, the applied electric field and dust water ration which affect the dust cohesive force.
分析了比电阻、外加电场和粉尘含水率等因素对粉尘粘结力的影响。
Where, following an abnormal condition, the removal of dust accumulations or layers cannot be assured, then the area is to be classified zone21.
如果不能保证排除可燃性粉尘堆积或粉尘层时，则应划分为21区。
measuring method for particle-size distribution of dusts in flue gas
废气中粉尘粒子分布测定法