焦炉炉头烟扩散过程分析与炉头烟集尘罩优化设计

基于焦炉炉头烟扩散过程的分析研究，提出栅网状抽吸面以及侧吸式抽吸结构的炉头烟集尘罩结构，并通过计算机仿真的方法进行分析。结果表明:栅网结构的抽吸形式增加了有效抽吸面积，优化了抽吸风量分布，解决了传统集尘罩有效抽吸截面小及风量分配不合理的问题；集尘罩前端的侧吸式抽吸结构，对沿顶板向两侧扩散烟气形成一种侧吸的效果，解决了炉头烟在冲击导烟板后向两侧排放的问题；优化后集尘罩结构，在风机风量降低30%时，依然能够对焦炉炉头烟实现有效治理，提高了集尘设备的运行效率。

ANALYSIS OF GAS DIFFUSION PROCESS OF FURNACE SMOKE AND OPTIMIZATION OF DUST COLLECTING HOOD

Based on the analysis and research of the diffusion process of the flue gas in the coke oven head, this paper presented dust collecting hood with a grid mesh suction surface and a side suction structure to control the flue gas and analyzed through the method of computer simulation. The results showed that the suction form of the grid structure increased the effective suction area, optimized the distribution of the suction volume, and solved the problems of small effective suction section and unreasonable air volume distribution of the traditional dust collection hood. The suction structure at the front end of the dust collection hood could form a side suction effect for the smoke moving along the smoke guide plate to both sides, and that realized the collection of the smoke, and solved the problem of smoke discharged to both sides after impacting the smoke guide plate. The new dust collection hood structure could still effectively control the flue gas when the air volume of the fan was reduced by 30%, thus improving the dust collection efficiency.