High-efficiency energy-saving gasification combustion hot blast stove

Abstract

The invention discloses an efficient energy-saving gasification combustion hot blast stove which comprises a combustion part and a heat exchange part, the combustion part comprises a main combustion chamber, a plurality of gasification combustion chambers are annularly arranged on the periphery of the main combustion chamber, and a fire passing pipe communicating with the main combustion chamber is arranged on the lower middle portion of each gasification combustion chamber; combustion hot air cavities are formed in the peripheries of the main combustion chamber, the gasification combustion chambers and the fire passing pipe; the heat exchange part comprises a heat exchange combustion chamber located on the upper portion of the main combustion chamber. Three layers of barrel sleeves are sequentially arranged on the periphery of the heat exchange combustion chamber from inside to outside to form a two-layer annular heat exchange air cavity and a one-layer annular smoke cavity; and a second air inlet is formed in the lower portion of the outer-layer heat exchange air cavity, a second air outlet is formed in the lower portion of the inner-layer heat exchange air cavity, and a smoke outlet is formed in the lower portion of the smoke cavity. The efficient energy-saving gasification combustion hot blast stove has the characteristics of being reasonable in structure, convenient to use, sufficient in combustion, high in heat exchange efficiency, small in smoke emission pollution and suitable for various kinds of fuel.

Description

technical field [0001] The invention belongs to the technical field of hot blast stoves, in particular to a high-efficiency energy-saving gasification combustion hot blast stove. Background technique [0002] Hot air stoves are widely used in people's production and life. Its working method is the heat released by fuel combustion, and the air is heated by high-temperature flue gas, so that the temperature of the air reaches the standard for use. It is used for domestic heating, industrial production, thermal curing, food Drying and other fields. The types of hot blast stoves are mainly divided into internal combustion type, external combustion type and top combustion type. The overall structure of the hot blast stove can be divided into two parts, one is the combustion part, which is the heat generation part of fuel combustion, and the other part is the heat exchange part, which is The heat carried by the high-temperature gas generated in the combustion chamber is heat-exch...

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Problems solved by technology

[0003] At present, the hot blast stove is also the main problem of most hot blast stoves. There are two aspects. One is that the combustion part is directly burned in the combustion chamber by coal or biomass fuel, which produces smoke and fire and enters the heat exchanger. The fuel cannot be fully burned, and the fuel is hot. The value cannot be fully utilized, and the pollution of flue gas emission is serious; on the other hand, the heat exchange area of ​​the heat exchange part is small, the heat exchange efficiency is low, the temperature of the flue gas discharged from the flue is high, and the heat is not fully absorbed and utilized.

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