29MW Hot Water Boiler - DZL29- 1.25/130/70- A II

This boiler has 3 vertical steam drums and a chain-grate stoker. The boiler bodyis composed of arch tube-sheet, threaded smoke pipe, Ba Zi smoke flue and catchment. The designed available coal type should be II type bitumite. The boiler uses8.5 meter chain-grate stoker, which reaches 65% coverage, and 12 back rakes;Air comes from both sides of the stoker in order to guarantee the coal layer couldreceive even ventilation. The blower pushes cool air into the air preheatingmachine, then the preheated air will, through the hot air flue on both sides ofthe boiler and the air inlet pipes of the stoker, be divided to 2 flows, andseparately ascend to the boiler furnace. The original flue gas emission concentration could satisfy the national standardfor the reason that the boiler has installed the threaded smoke pipe.This boiler has strong power, 10% override ability, high thermal efficiency, itsoperation efficiency could reach 81% so that it is a minimal polluted, high effectiveand energy conserved product.