煤尘,coal dust
1)coal dust煤尘
1.Temperature profiles of the methane-coal dust hybrid flame;甲烷—煤尘复合火焰的传播与温度特征
2.Study on the coal dust surface characteristics and wetting mechanism;煤尘表面特性及润湿机理的研究
3.On lower limit of explosive coal dust in coal dust mixture with methane;甲烷-煤尘复合体系中煤尘爆炸下限的实验研究
英文短句/例句

1.Waste from anthracite coal mines, consisting of fine coal, coal dust, and dirt.无烟煤废渣无烟煤煤矿的废弃物,由细粒无烟煤、煤尘和尘土构成
2.mixed explosion瓦斯和煤尘混合爆炸
3.miners who have inhaled coal dust into their lungs肺里吸入煤尘的矿工.
4.The Monitor and Control of Coalmine Gas and Dust;煤矿瓦斯和煤尘测控数学模型的建立
5.Technology of Gas Outburst Elimination,Gas and Coal Dust Management with Water Injection in Coal Seam at Coal Face in "Three Soft" Coal Seam“三软”煤层采煤工作面煤层注水消突治理瓦斯、煤尘技术
6.Experimental Study for Acute Pulmonary Reaction on Coal Dust of Hui Bei Coal Mine淮北煤矿煤尘的急性肺部反应实验研究
7.Research on Distribution Regularity of Deposited Dust in Return-air Way of Coal Face采煤工作面回风巷沉积煤尘分布规律的研究
8.Discussion on Coal Dust and its Control Techniques in Mining of Thick Coal Seam浅析厚煤层综放开采煤尘及其防治技术
9.lung disease caused by inhaling coal dust.由于吸入煤尘而导致的肺
10.flecks of dust, soot, dandruff灰尘的微粒、 煤炱、 头皮屑.
11.Atmospheric air-Test dust standard sample-Fly ashGB/T13269-1991大气试验粉尘标准样品煤飞尘
12.The Test Research of Electrostatic Precipitator Collecting Dust When Using Worse Coal;电除尘器收集困难煤种粉尘试验研究
13.APPLICATION OF BAG FILTER IN COAL CHARGING OF COKE OVEN布袋除尘器在焦炉装煤除尘中的应用
14.Choice and calculation for dust catcher of dust removal system in coal port煤港输煤系统中除尘器的选择和计算
15.Technology of coal seam Short-wall water injection to realize dustproof开展煤层短壁注水 实现煤层综合防尘
16.Research on Dusting and Migration Rule of the Dust at Open-air Coalyard;露天堆煤场粉尘起尘及运移扩散规律研究
17.Application Research on Baggy Excision Lampblack Skill in Flast Furnace Gas;袋式除尘技术在高炉煤气除尘中的应用研究
18.The Ways to Improve the Dust-catching Rate of the BF Gas Gravity Duster;提高高炉煤气重力除尘器除尘率的方法
相关短句/例句

coal-dust煤尘
1.Always emphasizes equipment modification is coal-dust governance,Environmental governance makes coal-dust comprehensive to further improve,Strengthening the management make comprehensive know-how coal-dust remain.其成功的经验是:企业一把手亲自主抓,各部门通力协作,是取得成功的关键,始终狠抓设备改造是搞好煤尘治理根本,环境治理使煤尘综合治理得到进一步的提高,强化管理使煤尘综合治理的成果得以长期保持。
2.Through studying the characteristics of coal dust occurring and distribution at longwall face adopts increasing the shear's spraying pressure, injecting water into coal seam and promoting management to reduce coal-dust density and improves the working environment and conditions.通过对综放工作面产尘的特点及煤尘的分布研究 ,采取了提高机组喷雾压力、煤体注水 ,加大管理力度完善技术管理等方法 ,降低煤尘密度 ,改善作业环境和条
3)coal dust煤粉,煤尘
4)smuts煤尘;烟尘 S
5)fine breeze细煤粉;煤尘
6)gas dust煤气粉尘
1.The installation of fine dust on-line monitoring equipment in the BF gas dust-removing system and the entrance pipes of TRT unit can efficiently control the efficacy of dust bags and realize the on-line detecting of gas dust content in TRT unit entrance pipes,thus ensuring the running conditions of TRT unit and its long-term, high-efficient and safe running.在高炉煤气除尘系统和TRT机组入口管道上安装粉尘在线监测装置,可对气布袋除尘效果进行有效控制,并实现TRT机组入口管道煤气粉尘含量的在线检测。
2.The initiation of the cracks was caused by stress corrosion resulting from the co-effect of the corrosive gas dust and the axial tensile stress.表面裂纹萌生原因是拉杆在腐蚀性高炉煤气粉尘和轴向拉伸等工作应力的综合作用下,形成的应力腐蚀裂纹。
3.Installation of dust on-line monitor device in the dusting system of blast furnace gas and in inlet pipe of TRT set could effectively control cloth-bag dusting effect and realize on-line examination of gas dust content in the inlet pipe of TRT set.在高炉煤气除尘系统和TRT机组入口管道上安装粉尘在线监测装置,可对气布袋除尘效果进行有效控制,并实现TRT机组入口管道煤气粉尘含量的在线检测。
延伸阅读

粉尘    粉尘  dust  密度单位体积粉尘的质量,有真密度、假密度、堆积密度之分。不包括存在于粉尘颗粒内部封闭孔洞的情况下,单位体积密实粉尘的质量称真密度;包括存在于尘粒内部封闭孔洞体积的密实粉尘,其单位体积的质量称为假密度,或称为表观密度。物料经机械性研磨、破碎形成的粉尘一般无内部的封闭孔洞,这些粉尘真假密度相等。单位体积松散粉尘的质量称为粉尘的堆积密度。 比表面积 单位质量粉尘的表面积称比表面积。比表面积与粒径成反比,粒径越小,比表面积愈大。比表面积对粉尘表面活性、附着、吸附、燃烧、爆炸等特性均有影响。 浓度 单位空气体积中粉尘的量。粉尘浓度是衡量空气污染程度的重要指标,与作业人员罹患疾病和粉尘爆炸界限等有关。粉尘浓度分数量浓度和质量浓度。数量浓度是单位体积空气中粉尘韵颗粒数,单位为n/cm3;质量浓度是单位体积空气中的粉尘质量,单位为mg/m3。在大多数场合下采用质量浓度,但对洁净车间或石棉等粉尘仍用数量浓度。 特性粉尘有很多特殊的属性,其中对防尘密切相关的有悬浮特性、扩散特性、附着特性、吸附特性、燃烧和爆炸特性、电特性、光特性以及粉料的流动特性等。 悬浮特性在静止空气中,尘粒受重力作用而沉降。当尘粒较细,沉降速度不高时,可按斯托克斯(stoke’s)公式求得重力与空气阻力大小相等、方向相反时尘粒的沉降速度,称尘粒沉降的终端速度。计算公式为U—Pp·d。·g/18p。式中g为重力加速度,m/s。;Pp为粒子密度,kg/m。;p为空气粘性系数,Pa·s;d为粉尘粒径,m。若再附加一些修正因素,计算密度为1、球形粒径为1弘m尘粒的终端沉降速度为O.0035cm/s}粒径10弘m的尘粒的终端沉降速度为O.3:Icm/s。实际空气绝非静止,存在各种扰动气流,因而可以视小于10btm的尘粒能长期悬浮于空气中。即便是大于10btm的尘粒,当处于上升气流中,若流速达到尘粒终端沉降速度,尘粒也将处于悬浮状态,该上升 】09气流流速称为悬浮速度。作业场所存在自然风流、热气流、机械运动和人员行动而带动的气流,使尘粒能长期悬浮。 扩散特性微细粉尘不仅可随气流携带而扩散,即使在相对静止的空气中,尘粒受到空气分子布朗运动的不断撞击也能形成类似于布朗运动的曲折位移。对于0.4拜m的尘粒,单位时间布朗位移的均方根值已略大于其重力沉降的距离;对0.1拌m的尘粒,布朗位移的均方根值相当于重力沉降距离的40余倍。这种运动使粉尘粒子不断由高浓度区向低浓度区扩散,也是尘粒流经微小通道向周壁沉降的主要原因。