Horizontal type two-channel pulverized coal fired boiler

Abstract

The invention discloses a horizontal type two-channel pulverized coal fired boiler. The horizontal type two-channel pulverized coal fired boiler comprises a boiler shell barrel body, a left outer-hung barrel body and a right outer-hung barrel body; and the boiler shell barrel body is provided with a left boiler furnace, a right boiler furnace, a front pipe plate, a rear pipe plate, a front smoke box, a left reversal chamber, a right reversal chamber, a skin plating, a left secondary return stroke smoke pipe and a right secondary return stroke smoke pipe. A left third return stroke smoke pipe and a right return stroke smoke pipe are respectively arranged in the left outer-hung barrel body and the right outer-hung barrel body, and the left third return stroke smoke pipe and the right return stroke smoke pipe are communicated with the front smoke box through a left smoke channel and a right smoke channel respectively. The horizontal type two-channel pulverized coal fired boiler has the advantages that: (1) a boiler body adopts the arrangement of the horizontal type independent double boiler furnace structure, overall structure is compact, appearance arrangement is simple, floor space is small, steel consumption is low, and overall transportation can be achieved; (2) the left and right reversal chambers adopt membrane wall structures, furnace walls only need thermal insulation materials, overall sealing and thermal insulation performance are good, and air leakage is little; and (3) product manufacture period is short, mounting is convenient, and operation is easy.

Description

technical field [0001] The invention belongs to the field of coal-fired industrial boilers, and in particular relates to a horizontal double-channel pulverized coal boiler which uses pulverized coal as fuel and is used to generate steam. Background technique [0002] my country's energy structure is dominated by coal. For a long time in the future, coal-fired industrial boilers will still be the leading product of industrial boilers. [0003] The traditional industrial coal-fired boilers are mainly layer-fired boilers. The disadvantages are low combustion efficiency and serious pollution, which makes it difficult to meet the requirements of energy saving, emission reduction and pollutant discharge. [0004] Pulverized coal combustion is one of the efficient and clean combustion methods of coal, and its combustion efficiency can reach more than 96%, which is a mature combustion technology. [0005] Existing pulverized coal boilers are usually designed based on fuel-fired gas...

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Problems solved by technology

[0010] 3. Ash collection: The oil-gas boiler structure is directly adopted, and there is no soot blowing device in the drum. After the pulverized coal is burned, a large amount of fly ash is accumulated in the furnace, the combustion chamber and the inside of the smoke pipe, which will cause a short circuit of the flue gas

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