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着重研究了废旧巷道对含尘气流的自净特性,进而对利用旧巷自净进行受控循环通风的设想进行探讨;在对浓度场和流体场测试的基础上,建立了粒子在废旧巷道沉降的紊流弥散模型,对边界条件进行了正确的假设,得出了稳态时的自净效率公式;导出了风量与巷道体积的关系表达式。
This paper focuses on the self-cleaning characteristics of waste roadway for dust-laden gas flow, and then explores the concept of controlled circulating ventilation using old lane self-purification. Based on the test of concentration field and fluid field, The flow dispersion model makes the correct assumptions on the boundary conditions and obtains the self-cleaning efficiency formula at steady state. The relation expression between air volume and laneway volume is derived.