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Heat storage body gas and air swirl entrainment pre-mixing combustion hot-blast stove

A technology of premixed combustion and regenerator, applied in furnaces, blast furnaces, heating furnaces, etc., can solve the problems of low mixing rate of gas and air, low combustion intensity, low combustion temperature, etc., to achieve enhanced heat transfer uniformity, improved Heat utilization rate and the effect of increasing the combustion temperature

Active Publication Date: 2015-10-07
陈维汉
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a hot blast stove with swirling entrainment and premixed combustion of gas and air in a regenerator, which can effectively solve the problems of low gas and air mixing rate, uneven mixing, low combustion intensity, low combustion temperature, and incomplete combustion. question

Method used

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  • Heat storage body gas and air swirl entrainment pre-mixing combustion hot-blast stove
  • Heat storage body gas and air swirl entrainment pre-mixing combustion hot-blast stove

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Embodiment Construction

[0012] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] Such as Figure 1-Figure 6 As shown, the present invention includes a combustion chamber wall 1b, a combustion chamber 2, a hot air outlet pipe 13, a gas inlet pipe 4, a gas distribution ring 6, a main gas nozzle 8, a gas adjustment nozzle 8a, a gas mixing ring 10 and an annular adjustment Baffle plate 10a, air mixing chamber wall 1a, air intake pipe 3, air distribution ring 5, air distribution nozzle 7, air mixing chamber 9 and air nozzle 9a, characterized in that the combustion chamber wall 1b is hemispherical at the top The vault is coaxially connected with the lower cylindrical body, supported and fixed on the outer furnace shell of the regenerator wall 1c through the support ring 18, and the combustion chamber 2 is inside the combustion chamber wall 1b, and a sleeve-shaped storage tank is stacked in the combustion ch...

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Abstract

The invention relates to a heat storage body gas and air swirl entrainment pre-mixing combustion hot-blast stove. The hot-blast stove solves the problems of low mixing rate, non-uniform mixing effects, and low intensity, low temperature and incomplete combustion. A sleeve-type heat storage block is arranged in the wall of a combustion chamber, a gas inlet pipe at the lower part is connected to a gas distribution circuit, a gas main nozzle of the gas distribution circuit is communicated with a gas adjustment nozzle, the gas adjustment nozzle is connected to the bottom of a gas mixing circuit, the top of the gas mixing circuit is provided with an annular adjustment baffle plate, an air inlet pipe of the wall of an air mixing chamber at the top is connected to an air distribution circuit, the air distribution circuit is provided with an air distribution nozzle, the bottom of the air mixing chamber is provided with an air nozzle, the wall is provided with a hot air outlet pipe, the wall of a heat storage chamber is sleeved by the wall of the combustion chamber and is built on the stove bottom, support columns on the stove bottom are provided with a grate, the heat storage block is arranged on the grate, and the lower part of the grate is provided with a flue gas outlet pipe and a cold air inlet pipe. The hot-blast stove has the advantages of uniform mixing, high combustion intensity, uniform air-flow distribution, good heat transfer uniformity and high heat utilization rate.

Description

technical field [0001] The invention relates to a hot blast stove, in particular to a hot blast stove for premixed combustion of coal gas and air swirling entrainment in a regenerator used to provide high-temperature blast for heat utilization equipment. Background technique [0002] At present, for the purpose of high efficiency, energy saving, environmental protection and production increase, blast furnace hot blast stoves are required to realize the combination of optimized combustion process and enhanced heat transfer process in the furnace. Looking at the various blast furnace hot blast stoves currently in use, their gas combustion devices are mainly based on the mixing and preheating of gas and air in the combustion chamber to ignite and burn, and the combustion technology in the regenerator is gradually being applied. But all be difficult to reach ideal state on the various burner designs that realize high wind temperature with the combustion of low calorific value co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B9/00
Inventor 陈维汉陈云鹤杨海涛张佳鹏
Owner 陈维汉
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