Reciprocating grate-fired furnace

Abstract

The invention belongs to the technical field of combustion furnaces, and particularly relates to a reciprocating grate-fired furnace. The reciprocating grate-fired furnace comprises a furnace body, a coal hopper, a front arch, a rear arch and a grate, wherein a boiler barrel is arranged on the upper portion of the interior of the furnace body, a combustion chamber is arranged on the lower portion of the interior of the furnace body, and a flue is formed between the boiler barrel and the combustion chamber; an opening is formed in the inner wall of the side, with the combustion chamber, of the furnace body, and the coal hopper is arranged outside the opening; the front arch, the rear arch and the grate are arranged in the combustion chamber, the front arch is arranged above the opening, one end of the rear arch is installed on the inner wall of the other side of the furnace body, the other end of the rear arch is a free end and is arranged between the opening and the front arch, and a gap is reserved between the free end and the inner wall on one side of the furnace body; the grate is installed at the bottom of the furnace body, and the coal inlet end of the grate penetrates out of the opening and is arranged below the coal hopper. According to the reciprocating grate-fired furnace, anthracite serves as fuel of the reciprocating grate-fired furnace instead of secondary soft coal, the purposes of energy saving, emission reduction and consumption reduction are achieved, and the production cost can be reduced to a large extent.

Description

technical field [0001] The invention belongs to the field of combustion furnaces, in particular to a reciprocating grate layer combustion furnace. Background technique [0002] At present, most of the boilers commonly used in domestic industrial production are reciprocating grate layer-fired furnaces. The characteristic of this furnace is that it can only use second-class bituminous coal with a calorific value above 5000Kcal / kg. Reaching about 3.33 million yuan, and the coal cannot be completely burned, the production cost is too high. Most of the real estate anthracite is 1800~3600kcal / kg low-quality anthracite, the price is low, the transportation distance is short, and the resources are abundant. However, at present, anthracite can only be used in fluidized combustion boilers. If it can be used as a fuel for bed-fired furnaces, it will not only reduce the cost, greatly improve the utilization rate of energy, but also have a positive effect on improving economic benefits ...

AI Technical Summary

Problems solved by technology

But at present, anthracite can only be used in fluidized combustion boilers. If it can be used as a fuel for bed-burning furnaces, it will not only reduce the cost, greatly improve the utilization rate of energy, but also have a positive effect on improving economic benefits and market competitiveness.

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