... adopt shop-assembled structure, and as for 7WM boilers, the two upper and lower parts are assembled ... anxiliary main: Burner, feed pump, blower, exhauster, electric control cabinet, sootblowers, economizer,Sequence NumberItemUnitTechnical Specification1Name SZL2.8 ... ,air blower,feed water pump, valve instrument, crusher, chimney, electric cabinet, multi-cyclone and so on hot water boiler -- SZL14-1 ...