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发明公开
CN107464027A 一种适用于露天煤炭堆场的PM2.5动态起尘量的估算方法 无效 - 撤回

一种适用于露天煤炭堆场的PM2.5动态起尘量的估算方法
摘要：
本发明公开了一种适用于露天煤炭堆场的PM2.5动态起尘量的估算方法，采用以下公式：式中：Q：动态起尘量(kg)；α：货物类型起尘调节系数；APM2.5/TSP：该堆场堆垛表面煤炭中粒径小于等于2.5微米的颗粒物的含量与粒径小于等于100微米的颗粒物的含量的比值；β：作业方式系数；H：作业落差；ω2：水分作用系数，与散货性质有关，取0.40～0.45；ω0：水分作用效果的临界值，与散货性质有关，煤炭的ω0值取6％；ω：含水率；Y：作业量；ν2：作业起尘量达到最大起尘量50％时的风速；U：风速。采用本发明估算露天煤炭堆场的PM2.5动态起尘量，结果准确度较高。
摘要（英）：

The invention discloses a PM 2.5 dynamic dusting quantity estimation method suitable for an open coal yard. The PM 2.5 dynamic dusting quantity estimation method adopts the following formula: Q=2.3.A(PM2.5/TSP).alpha beta HeY/[1+e<0.25(v2-U)>], wherein Q is the dynamic dusting quantity (kg); alpha is the goods type dusting accommodation coefficient; A(PM2.5/TSP) is the ratio of the content of particles of which the particle sizes are smaller than or equal to 2.5 mu in coal on the surface of a stack in the yard to the content of particles of which the particle sizes are smaller than or equal to 100 mu; beta is the operation mode coefficient; H is the operation head, omega 2 is the moisture function coefficient related with bulk properties and is 0.40-0.45; omega0 is a critical value of the moisture function effect, is related with bulk properties and is 6%; omega is the moisture content; Y is the operation quantity; v2 is wind speed when the operation dusting quantity is 50% of the maximum dusting quantity; and U is the wind speed. When adopted to estimate the PM 2.5 dynamic dusting quantity of the open coal yard, the PM 2.5 dynamic dusting quantity estimation method is high in result accuracy.

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