一种能稳定干燥煤处理量的干湿煤混合的炼焦方法:适用煤种:粘结指数G<68,且粒度<3mm占质量百分比低于60%的矿山来煤;切出相应比例混合均匀的配合煤;对切出的配合煤进行干燥;对易产生粉尘粒级的干燥煤粉进行处理;在分离出的煤粉中加入焦油渣并压制成型煤;将干燥后粒度>0.5mm的配合煤、压制的型煤,以及未经干燥的湿煤经运输皮带及转运站混合至均匀;经不少于3个转运站后进入煤塔并常规炼焦。本发明与在不改变现有生产工艺,不对现用焦化生产带来不利影响的前提下,通过对转运站数的控制及仅对粒度<3mm的细颗粒煤粉干燥的基础上,减少干燥煤的处理量至少在30%,炼焦过程中扬尘量不超过湿煤粉尘量的0.5%,且能大大改善生产实施难度。

A coking method of dry and wet coal mixing which can stabilize the processing capacity of dry coal: applicable coal types: coal from mines with caking index g < 68, particle size < 3mm and mass percentage less than 60%; Cut out the blended coal with uniform mixing in corresponding proportion; Dry the cut blended coal; Dry pulverized coal easy to produce dust particle size shall be treated; Adding tar residue into the separated pulverized coal and pressing the formed coal; Mix the mixed coal with particle size > 0.5mm after drying, pressed briquette and wet coal without drying to be uniform through transportation belt and transfer station; After passing through no less than 3 transfer stations, it enters the coal tower for conventional coking. On the premise of not changing the existing production process and not adversely affecting the existing coking production, the invention can reduce the processing capacity of dry coal by at least 30%, the amount of dust in the coking process does not exceed 0.5% of the amount of wet coal dust, and can greatly improve the difficulty of production implementation on the basis of controlling the number of transfer stations and drying only the fine particle pulverized coal with particle size less than 3mm.