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1)  dust analysis
烟尘浓度分析
2)  dust concentration
烟尘浓度
1.
Influence of dust concentration distribution on secondary blowing dust;
烟尘浓度分布对二次扬尘影响的探讨
3)  smoke concentration
烟尘浓度
1.
Based on photoelectric detecting principles,an advanced smoke concentration automatic measuring system with computer and photoactive sensor has been developed.
根据光电检测原理 ,并结合计算机研制出一种先进的烟尘浓度测定系统。
4)  smoke mass concentration
烟尘质量浓度
5)  concentration of smoke emission
烟尘排放浓度
1.
After putting into operation, the concentration of smoke emission has been reduced to lower than 50 mg/m3(standard state), the control of bag dust collector to be simple, and its operation to be stable and re.
对内回流循环流化床(RCFB)烟气脱硫系统二级电除尘器烟尘排放超标,改用高浓度布袋除尘器,运行后烟尘排放浓度小于50mg/m3(标准状态)。
2.
For this,the dust concentration in flue gas entering into the absorption tower has been decreased to 50 mg/m3,at the same time,the 50% dust removal efficiency of absorption tower isn\'t calculated again,this is reserved to treatment of the increased "spattered drops"of dust,to ensure the concentration of smoke emission to be less than 50 mg/m3.
对此,使进入吸收塔前烟气含尘浓度降低到50 mg/m3,同时不再计算吸收塔50%的除尘效率,而将其留给增加的"飞沫"粉尘的处理,以确保烟尘排放浓度小于50 mg/m3。
6)  measurement of smoke and dust density
烟尘浓度测量
1.
The present methods available for the measurement of smoke and dust density suffer from the disadvantages of difficulty in sampling and low accuracy.
针对目前烟尘浓度测量方法中存在取样难、精度低等问题,提出了一种基于机器视觉的在线监测烟尘排放及分析烟尘排放浓度的方法。
补充资料:林格曼烟尘浓度图
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性质:用比较法测定烟尘浓度时广泛使用的一种规格图。该图是由14cm×20cm,黑度不同的六小块图板组成,除全黑、全白外,其他四块是在白色背底上,涂上不同比例的黑色小格,使黑色小格占白色背色的百分比分别为20%,40%,60%,80%,由此把煤烟浓度相应地区别为6级,即0~5级。使用时将林格曼图板竖立在与观测者眼睛相同的高度上,然后在距离图板15m,距离烟囱40m处注视此板,与离烟囱口30~45cm处的烟尘浓度进行对比,即可得知烟尘浓度。使用时,观测者位置应与烟气流向成直角;不要面向太阳;烟气出口处的背景上不应有高大的树木和建筑物。级数烟气特点黑色小块占总面积/%烟尘量/(g/m3)0全白001微灰200.252灰400.703深灰601.204灰黑802.305全黑1004.0~5.0

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