Return air gasification furnace with ring fire oven

Abstract

The invention discloses a return air gasification furnace with a ring fire oven, relating to a civilian use furnace. Usually a secondary air inlet cavity is arranged at the upper part of the furnace to realize secondary combustion of fuel, and secondary air admission paths are arranged at the two sides of a feed port to facilitate air admission to the furnace to participate in secondary combustion; fire ignition is very convenient in that a double-pass scheme is adopted; a tempering flue facilitates the furnace body to absorb more heat; the oven is arranged at one side of the furnace body andbetween the fire ignition flue and an air return flue, thus facilitating heating of the oven; a rotating fire-blocking cover arranged at the upper part of the furnace is controlled by a revolving handle at the outside of the furnace body, as a result opening and closing of the cover is very convenient; a throat opening of the furnace body is arranged with a pottery desktop; a asbestos insulation layer is arranged between the pottery surface and the furnace body to prevent the desktop from being scalded due to overheating. With advantages of numerous schemes integrated, the invention not only saves fuel and fully utilizes heat of the fuel and numerous designs in the invention facilitate very convenient use.

Description

technical field [0001] The invention relates to a civil stove, in particular to a return air gasification furnace with a ring fire oven. Background technique [0002] The civil stoves currently in use include return air furnaces, gasifiers and return air gasification furnaces. The return air furnace has the disadvantage of insufficient flue gas combustion, while the gasifier has complex processing technology and poor overall flue gas channel design. As reasonable as possible, the secondary air inlet channel makes the bore of the furnace at the furnace bridge too small, which is easy to be blocked by furnace ash. Although the improved double flue tempering furnace has been improved, it is still not ideal. Existing fire stove with oven, the position of oven can't make full use of fuel waste heat. Most of the tabletops installed on the stove in the existing stoves are made of metal, which can easily cause the temperature of the tabletop to be too high and cause burns. Conten...

AI Technical Summary

Problems solved by technology

[0002] The civil stoves currently in use include return air furnaces, gasifiers and return air gasification furnaces. The return air furnace has the disadvantage of insufficient flue gas combustion, while the gasifier has complex processing technology and poor overall flue gas channel design. As far as it is reasonable, the secondary air intake channel makes the diameter of the furnace at the furnace bridge too small, which is easy to be blocked by furnace ash. Although the improved double flue tempering furnace has been improved, it is still not ideal

The existing stove with an oven, the location of the oven cannot make full use of the waste heat of the fuel

Most of the tabletops installed on the stove in existing stoves are made of metal, which can easily cause the temperature of the tabletop to be too high and cause burns

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