Coal water slurry and coal water slurry powder combusting hybrid boiler

Abstract

The invention provides a coal water slurry and coal water slurry powder combusting hybrid boiler which comprises a combustor, a combustion chamber and a boiler body, wherein the combustor is fixedly arranged outside the combustion chamber and comprises a precombustion chamber and and after-combustion chamber which are communicated with each other, the precombustion chamber is adjacent to the combustor, and the length ratio of the precombustion chamber to the after-combustion chamber is 0.4-0.9. The coal water slurry and coal water slurry powder combusting hybrid boiler also comprises a first longitudinal jet blast pipe and a second longitudinal jet blast pipe, wherein the first longitudinal jet blast pipe and the second longitudinal jet blast pipe are fixedly arranged in after-combustion chamber respectively in a direction perpendicular to the spraying direction of the combustor, a plurality of first air ports are arranged on the first longitudinal jet blast pipe, and the first air ports face toward the combustor; a plurality of second air ports are arranged on the second longitudinal jet blast pipe, and the air outlet direction of the second air ports is upward. Thus, the usable range of the coal water slurry and coal water slurry powder combusting hybrid boiler is increased.

Description

technical field [0001] The invention relates to boiler equipment, in particular to a hybrid boiler for burning coal-water slurry and coal-water slurry dry powder. Background technique [0002] At present, the working principle of the boiler is usually to burn the fuel in the combustion chamber of the boiler, heat the liquid contained in the boiler and provide steam, hot water or other bed heat medium according to different needs. Coal water slurry is regarded as a clean energy Widely used in various boilers. [0003] A coal-water slurry boiler in the prior art usually includes a burner, a combustion chamber, and a boiler body. By spraying coal-water slurry into the combustion chamber of the boiler for combustion, the liquid in the heating surface of the boiler body is heated. [0004] It can be seen from the above that the coal water slurry boiler in the prior art can only use the coal water slurry as a single fuel, and heat the liquid in the boiler by burning the coal wate...

AI Technical Summary

Problems solved by technology

[0004] It can be seen from the above that the coal-water slurry boiler in the prior art can only use coal-water slurry as a single fuel, and heat the liquid in the boiler by burning the coal-water slurry

Therefore, the scope of use of boilers in the prior art is relatively narrow

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