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| 1 | INFLUENCE OF AIR HUMIDITY ON THE SUPPRESSION OF FUGITIVE DUST BY USING A WATER-SPRAYING SYSTEM显示文摘One of the main origins of fugitive dust emission arises from bulk handling in quarries or mines, in par- ticular, from bulk materials falling from a hopper or a conveyor belt. Water-spraying systems, using two-phase nozzles, are one of the methods to suppress such dust emission. In this work we tried to develop a mathematical model to cor- relate air humidity, water flux through the nozzle and the dust (in particular PM10) emission, in order to improve the ap- plication and efficiency of these systems. Sand from the Yellow River in China was dropped from a conveyor belt into a dust chamber at 1 kg?min-1, wherefrom the emitted dust was sucked off and quantified via a cascade impactor. A two-phase nozzle was installed in the dust chamber with a water flux through the nozzle of 1.2 to 3 L?h-1, whereas the relative air humidity changed between 55 and 73%. Dust emission was found to be linearly dependent on relative air humidity. Furthermore model equations were developed to describe the dependence of PM10 emission on water flux and relative air humidity. | Peter Werner Grundnig Wilhelm Hoeflinger Gerd Mauschitz Zechang Liu Guiqin Zhang Zhiqiang Wang | 2006 | China Particuology2006，4，5： | 6 |
| 2 | 工业粉体下落过程粉尘排放特性的实验研究显示文摘根据与维也纳工业大学化学工程研究所共同确定的实验方案,在实验室开发并设计了一套自由下落装置,研究粉体下落过程中粉尘的排放特性。通过实验主要测定下落高度、空气湿度和质量流量对粉尘排放的影响。实验结果表明,下落高度和空气湿度对粉尘排放均有影响,且空气湿度对粗粒子的排放影响较大,对细粒子影响较小;随着质量流量的增加,粉尘产生率逐渐减小,但质量流量的增加也会增加粉尘浓度,加重了对工人的危害。建立了影响因素与粉尘产生率之间的数学模型,经检验,二者之间存在显著相关,实测值与理论计算值基本一致,可以应用已建立的数学模型定量评价粉尘产生量。 | 张桂芹 刘泽常 李敏 Wilhelm Hoeflinger Gerd Mauschitz | 2006 | 环境科学与技术2006，29，11： | 6 |
| 3 | 物料下落过程中随机性粉尘的产生特性及其数学模型显示文摘为了研究物料下落过程中随机性粉尘的产生特性,在实验室开发并设计了一套自由下落装置。通过实验主要测定空气湿度和质量流量对粉尘产生率的影响。结果表明,空气湿度对粉尘排放有影响,且对粗细粒子的影响程度不同;当空气湿度达到一定数值时,粉尘产生率已很小,此后再增加空气湿度,粉尘产生率基本不变。随着质量流量的增加,粉尘产生率逐渐减小,但粉尘浓度会增加,对工作场所工人的身体健康及环境带来严重危害。根据实验数据建立了空气湿度和质量流量与粉尘产生率之间的数学模型,经验证,相关性很好,实测值与理论计算值基本一致,可以定量评价不同质量流量下不同空气湿度的粉尘产生率。 | 张桂芹 刘泽常 Wilhelm Hoeflinger Gerd Mauschitz | 2008 | 山东农业大学学报(自然科学版)2008，39，1： | 4 |
| 4 | Clog -ging mechanisms involved in the aging process of cleanable filter media显示文摘 | Josef Schuberth Gerd Mauschitz Wilhelm Hofiinger | 2011 | Separation and Purification Technology2011，，： | 1 |
| 5 | Transmitted-light microscopy a new method for surface structure analysis of cleanable non-woven dust filter media显示文摘 | Heimo Rud Gerd Mauschitz Wilhelm H·flinger | | 0，，03： | 1 |
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