Hot blast stove with injection premixing cyclone stable flame device and heat accumulators for supporting combustion
A technology of flame stabilization device and heat accumulator, applied in furnaces, blast furnaces, heating furnaces, etc., can solve the problems of uneven mixing, low combustion temperature, incomplete combustion, etc., achieve novel and unique structure, reduce environmental pollution, and reduce emissions amount of effect
Active Publication Date: 2014-03-12
郑州宏瑞耐火材料有限公司
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Problems solved by technology
Obviously, such a hot blast stove has the ability to effectively solve the problems of low gas and air mixing rate, uneven mixing, long combustion time, low combustion temperature, incomplete combustion, large combustion chamber space and unreasonable burner structure.
Method used
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[0008] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0009] Such as figure 1 , figure 2 As shown, the present invention includes a combustion chamber wall 1a, a combustion chamber 2, a hot blast outlet pipe 17, a jet mixer 5, a gas inlet pipe 3, an air inlet pipe 4, a premixed gas connecting pipe 6, a burner wall 1b, a premixed Mixed gas distribution ring 7, premixed gas nozzle channel 8, premixed cyclone flow flame stabilization ring 9, air flow blocking adjustment ring 9a, regenerator wall 1c, regenerator 10, regenerator 12, furnace grate And support 13, cold air chamber 14, cold air inlet pipe 15, flue gas outlet pipe 16 and furnace bottom 1d, combustion chamber wall 1a is a spherical vault shape, and combustion chamber is conically stacked with combustion-supporting ceramic porous body 11, combustion chamber wall 1a and the cylindrical burner wall 1b at its lower part are i...
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The invention relates to a hot blast stove with an injection premixing cyclone stable flame device and heat accumulators for supporting combustion and effectively solves the problems that the mixing speed of coal gas and air is low and the combustion is not complete. According to the structure, combustion-supporting ceramic porous bodies are stacked in a combustion chamber is a tapered shape; a wall body of the combustion chamber and a wall body of a combustor are connected to be integrally supported on a stove shell; heat accumulators are filled; a cylindrical body of the wall body of the combustor is provided with a premixed gas connection pipe and is built on a premixed gas distribution annular channel in the wall body of the combustor; premixed gas nozzle channels are arranged on an inner side annular wall and enter from a side wall of a premixing cyclone stable flame annular channel; an annular air nozzle channel connected with an air inlet pipe is formed between the shell and a coal gas spraying pipe; a porous-plate-shaped grate for supporting the heat accumulators is horizontally arranged on the lower part of a wall body of a heat accumulation chamber; the heat accumulation chamber is internally provided with the porous heat accumulators; a cold air chamber is formed in an inner space between the wall body of the heat accumulation chamber on the lower part of the grate and a furnace bottom. According to the hot blast stove, fuel is saved, the investment is saved, the temperature of waste gas is reduced and the emission amount of harmful gas is reduced.
Description
technical field [0001] The invention relates to a hot blast stove, in particular to a hot blast stove with an injection premixed swirling flame stabilizing device and a regenerator combustion-supporting device for providing high-temperature blast for a blast furnace. Background technique [0002] At present, considering energy saving and consumption reduction, blast furnace hot blast stoves are required to obtain high performance and high blast temperature under the combustion of low calorific value blast furnace gas, and finally achieve the goals of high efficiency, energy saving, environmental protection, and increased production. For this reason, an optimized combustion process must be combined with an enhanced heat transfer process in the hot blast stove. This involves the structure of the combustion device, the structure and arrangement of the heat storage body, and the organization of the air flow field. Looking at the various hot blast stoves currently in use, their ...
Claims
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IPC IPC(8): C21B9/00
Inventor 陈维汉陈云鹤杨海涛张佳鹏
Owner 郑州宏瑞耐火材料有限公司