Hot blast stove for preheating combustion in gas and air jet mixed porous body

Abstract

The invention relates to a hot blast furnace for preheating and combusting a gas-air jet mixture in a porous body, which effectively solves the problems of non-uniform gas mixing, insufficient combustion and resource wastage of a hot blast furnace. A porous combination block body is arranged in a flameless combustion chamber in a housing, a premixed gas intake pipe on the flameless combustion chamber is connected with a gas intake pipe and an air intake pipe through a jet premixer, and a flow guide block is partitioned in the premixed gas intake pipe. A hot blast outlet pipe is arranged on the flameless combustion chamber, the lower part is butted with a conical regenerative chamber, a cylindrical heat accumulation chamber is arranged below the conical heat accumulation chamber, and lattice brick heat accumulators are arranged in the conical regenerative chamber and the cylindrical heat accumulation chamber. A smoke exhaust pipe and a cold blast inlet pipe are arranged on a cold blastchamber below the cylindrical heat accumulation chamber, lattice brick heat accumulators are arranged on a furnace grill, and pillars below the furnace grill are fixed on a pedestal. Through the hot blast furnace, gas and air are quickly, stably and intensively combusted through jet mixing, the manufacturing cost is effectively lowered, and the heat transfer and heat accumulation effects of lattice bricks are improved.

Description

technical field [0001] The invention relates to a hot blast stove, especially a hot blast stove that provides high temperature and high pressure blast for iron-making blast furnaces, or provides hot blast for general industrial heating, which is preheated and burned in a porous body mixed with gas and air jets. Background technique [0002] At present, blast furnace hot blast stoves have entered the era of top-fired hot blast stoves. From the perspective of energy saving and consumption reduction, blast furnace blasts are required to develop in the direction of high blast temperature, especially when burning low calorific value blast furnace gas to obtain high hot blast temperatures, and must reach a certain level. Thermal efficiency, and ultimately achieve the goals of high efficiency, energy saving, environmental protection, and increased production. To achieve high efficiency and high air temperature for a hot blast stove, the key lies in whether its combustion process an...

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Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a hot blast stove for preheating and burning in the mixed porous body of gas and air jet, which can effectively solve the problem of complex structure of hot blast stove, uneven gas mixing and insufficient combustion. , polluting the environment and wasting energy

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