Dry dust collection system of large closed direct current electric furnace

The invention discloses a large closed direct current electric furnace dry dust collection system which is characterized in that smoke generated by an electric furnace is communicated with one end of a V-shaped pipe through a herringbone smoke pipe, the other end of the V-shaped pipe is communicated with a water-cooling smoke pipe, and the communicating position of the V-shaped pipe and the water-cooling smoke pipe is communicated with a safety valve through a communicating pipe; according to the invention, the number of equipment of the system is reduced, the whole process flow is shortened, and the operation is convenient; the consumption of water resources and the generation of pollutants are reduced, the system is stable in operation and remarkable in dust removal effect, and the particulate matter emission concentration is far lower than the national emission standard requirement. 本发明公开了一种大型密闭直流电炉干法收尘系统，电炉产生的烟气通过人字状烟管与V形管的一端连通，所述v形管的另一端与水冷烟管连通，所述V形管与所述水冷烟管的连通处通过连通管与安全阀连通，所述二级冷水器的排气口通过管程与煤气柜连通，本发明的系统设备减少，