New-style air returning furnace

Abstract

A new-style air returning furnace relates to the secondary combustion technology. A furnace table is fixed at the upper end of a furnace body, the lower end of the furnace body is fixed on a furnace base, an inclined outer feeding trough is arranged on one side of the furnace body, a smoke uptake is arranged on the other side of the furnace body, a movable cylindrical sandy soil furnace core is arranged in the furnace body, an inner feeding trough is arranged at the side of the upper half of the furnace core and corresponds to the outer feeding trough outside the furnace body, an air inlet pipe is arranged between the inner circle and the excircle of the furnace core, second inlet air formed by the rise of hot air enters a combustion-supporting hole on a gasifying cylinder to support combustion for the furnace, a furnace bridge, an air door and a fire adjusting plate are arranged at the lower end port of the inner circle of the furnace core, the fire can be controlled through adjusting the opening degree of the fire adjusting plate, and the gasifying cylinder and an air concentrating cover are arranged at the upper end port of the furnace core. The new-style air returning furnace is simple in structure, convenient in material feeding, easy to manufacture and low in cost and has both air returning effect and secondary combustion effect, thereby being a practical furnace for civil use.

Description

Technical field [0001] The invention relates to a stove, in particular to a secondary combustion technology and a novel return air stove which is convenient for adding fuel. Background technique [0002] The return air stove can be used for heating and cooking, so it is very popular among users. Its structure is to put a sand furnace core in the furnace body, and the furnace core and the furnace body are separated from each other to form a return air interlayer. After reaching the bottom of the pot, it will bounce back into the interlayer and stay in the interlayer for a certain period of time before being discharged from the smoke exhaust port. This can make full use of heat and reduce smoke emissions, but the disadvantage is that it can only use coal as fuel, and there is no fire on the furnace side. In the feeding tank, the fuel needs to be added from the furnace mouth, causing smoke and dust to rise outside, polluting the environment and harmful to health. In addition, ...

AI Technical Summary

Problems solved by technology

[0002] The return air stove can be used for heating and cooking, so it is very popular among users. Its structure is to put a sand furnace core in the furnace body, and the furnace core and the furnace body are separated from each other to form a return air interlayer. After reaching the bottom of the pot, it will bounce back into the interlayer and stay in the interlayer for a certain period of time before being discharged from the smoke exhaust port. This can make full use of heat and reduce smoke emissions, but the disadvantage is that it can only use coal as fuel, and there is no fire on the furnace side. Filling tank, fuel needs to be added from the furnace mouth, causing smoke and dust to rise outside, polluting the environment and harmful to health

In addition, this type of return air furnace does not have a secondary combustion device, and only supplies air from the bottom of the furnace core, so that the fuel can be burned directly at one time, and the combustion is not sufficient, and the fuel consumption is relatively large.

To sum up the above, this kind of traditional return air furnace does not save energy, does not reduce emissions, is unsanitary and unsafe, and it is very necessary to replace it

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