转运站袋式-微雾联合控尘方案数值分析

发布时间：2018-05-04 16:33

本文选题：粉尘 + 转运站　；参考：《辽宁工程技术大学学报(自然科学版)》2017年02期

【摘要】：为解决选煤厂转运站处粉尘污染严重的问题,采取袋式-微雾联合控尘方案.以平朔木瓜界选煤厂280转运站为例,应用气-液-固多相流理论,通过数值模拟的手段,对转运站粉尘逸散规律和微雾袋式联合控尘方案进行分析.研究结果表明:转运站导料槽喷尘是落料诱导风流造成的,消除诱导风流是选择除尘器的依据;机尾裸露皮带甩尘是黏附在皮带上的粉尘与风流的摩擦造成的,控制喷雾量是机尾微雾控尘的关键.将确定参数应用于现场,转运站降尘率高达95%以上.
[Abstract]:In order to solve the serious problem of dust pollution in the transfer station of coal preparation plant, the combined control scheme of bag and micro fog was adopted. Taking the transfer station 280 of Pingshuo papaya preparation plant as an example, by using the theory of gas-liquid-solid multiphase flow and by means of numerical simulation, the law of dust dissipation and the scheme of micro-fog bag combined dust control are analyzed. The results show that the dust spray in the guide tank of the transfer station is caused by the air flow induced by the drop, the elimination of the induced air flow is the basis for selecting the dust collector, and the dust ejection from the bare belt is caused by the friction between the dust and the air flow attached to the belt. The control of spray amount is the key to control dust by micro fog in the tail of the machine. The determined parameters are applied to the field, and the dedusting rate of the transfer station is up to 95%.
【作者单位】：辽宁工程技术大学安全科学与工程学院;矿山热动力灾害与防治教育部重点实验室;
【基金】：国家自然科学基金项目(51274166) 辽宁省自然科学基金项目(2015020605) 辽宁省教育厅项目(L2015212)
【分类号】：TD714.4

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