Novel water-coal-slurry fired organic heat carrier boiler

Abstract

The invention discloses a novel water-coal-slurry fired organic heat carrier boiler, which comprises a boiler foundation, a boiler wall, a boiler body, an outer guard plate, a steel frame and a platform ladder, wherein the boiler body comprises a hearth, an ash outlet system of a cold ash hopper, an oil cooling system, a convection bank, a smoke duct and an air pre-heater; the hearth is encircled by a front wall, a left wall, a right wall and a rear wall; a cyclone burner is arranged on the front wall of the hearth, the distance among the cyclone burner, the hearth and the upper edge of the cold ash hopper is greater than the width of the flame airflow of the cyclone burner, and the distribution of the cyclone burner is matched with the shape of the hearth; the hearth is provided with a lower hearth secondary air device; and hearth ash blowing devices are respectively arranged on the left wall, the right wall and the rear wall of the hearth. The water-coal-slurry fired organic heat carrier boiler has the advantages that: the boiler bottom ash of a combustion chamber is greatly reduced, the bottom of the boiler is difficult to coke, and the mechanical incomplete burning heat loss of the boiler is reduced; and the water-coal-slurry is burnt more stably in the boiler and fired more quickly, and the burn-off rate of the water-coal-slurry is greatly improved.

Description

technical field [0001] The invention relates to a novel coal-water-fired slurry organic heat carrier furnace. Background technique [0002] At present, the coal-water slurry organic heat carrier furnace is mainly an assembled coil structure. First, in terms of the factory form of the equipment, it is assembled and shipped from the upper and lower parts of the boiler main engine. Due to the limitations of hoisting, transportation and other factors, the size of the large transport is limited. Second, in terms of performance and structure, the furnace, ( 1) This structure is simply applied to ordinary coal-fired chain boilers, which makes it impossible to design and arrange according to the characteristics of coal-water slurry fuel combustion; (2) The furnace is horizontal, with a horizontal flame stroke, and the longer flame stroke makes the furnace bottom The ash and pulverized coal particles are burned at the bottom of the furnace, causing coking problems, and the furnace v...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a new type of coal-water-slurry organic heat carrier furnace for the defects in the structure and performance of the current assembled coil-tube coal-water-slurry organic heat carrier furnace

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