Horizontal boiler

Abstract

The invention discloses a horizontal boiler which is characterized in that a plurality of main hot air pipes (2) are arranged in a heat exchanger (4); the upper part and the lower part of the main hot air pipe (2) are separated by a partition board (3); a hot air suction duct (13) is arranged over the back part of the heat exchanger (4) and connected to the inlet of a hot air circulator (5); the outlet of the hot air circulator (5) is connected to a combustion chamber (7) by a hot air exhaust duct (6); and an air-regulating valve is arranged in the combustion chamber (7). The horizontal boiler has the characteristics of finishing the history that the boiler can not burn the anthracite or the coke, and starting a new purpose of the anthracite. In the invention, the waste heat and the smoke dust are recycled, the thermal efficiency is improved by more than 25% and the fire coal is saved; the smoke and the dust are unavailable, the environmental protection requirement is accorded; chimneys and smoke prevention and dust control devices are eliminated, a large amount of investment is saved; because the anthracite has weak flame, the combustion chamber has decreased height and compact structure, the flame loss of the heat exchanger is little, the service life is prolonged; the anthracite and the coke have lower price and higher heat value than the gas coal, the coal price is saved by more than 15%; and the structural adaptability is strong, thus the small, middle and large boilers with different sizes can be produced.

Description

Technical field [0001] The invention relates to a boiler, especially a horizontal boiler capable of burning anthracite and coke and improving thermal efficiency. Background technique [0002] Boilers are special equipment for providing hot water or hot steam. Traditional boilers can only burn bituminous coal, use flame combustion heat exchangers, and set up chimneys to discharge smoke into the air, causing air pollution, heat loss, and large investment in emission and smoke elimination facilities. , instead of burning anthracite and coke with low price and high calorific value. Contents of the invention [0003] In order to burn anthracite and coke and improve thermal efficiency, the invention provides a heat exchanger that utilizes a hot air circulation machine to guide the hot smoke and dust lost in the flue back to the combustion chamber for reburning and heating. [0004] A horizontal boiler, including a furnace door 1, a heat exchanger 4 and a hot air circulation mac...

AI Technical Summary

Problems solved by technology

[0002] Boilers are special equipment for providing hot water or hot steam. Traditional boilers can only burn bituminous coal, use flame combustion heat exchangers, and set up chimneys to discharge smoke into the air, causing air pollution, heat loss, and large investment in emission and smoke elimination facilities. , instead of burning anthracite and coke with low price and high calorific value

Images