Heating structure at bottom of bin of aluminium anode baking furnace

Abstract

The invention discloses an anode baking furnace in the aluminium anode production field and in particular relates to a heating structure at the bottom of a bin of the aluminium anode baking furnace. The heating structure comprises a bin and flues at the two sides of the bin and is characterized in that hot bin bottoms are arranged at the bottom of the bin; isolating stacks are arranged in the middle below the hot bin bottoms; left and right heating zones communicated with the flues at the two sides of the bin are arranged at the two sides of the isolating stacks; each left heating zone and each right heating zone are respectively provided with a front heating section and a rear heating section; and each flue is divided into a front flame zone and a rear flame zone. The heating structure solves the following problems: low temperature of the bottoms of the bins of the previous anode baking furnaces, high upper and lower temperature difference of the bins, high flue control temperature, high fuel consumption, reduced capacity of the furnaces, high burning loss of fillers, short change period of flue walls, zero benefit to energy conservation and emission reduction, etc.

Description

technical field [0001] The invention relates to an anode roasting furnace in the field of aluminum anode production, in particular to a bottom heating structure of a material box of the aluminum anode roasting furnace. Background technique [0002] In the baking production process of aluminum anodes, in order to ensure the output of the roasting furnace, the raw anodes are generally stacked in multiple layers in the material box, and each layer is juxtaposed with multiple pieces, and the depth of the material box is generally more than 5m. When the product is heated, the fuel is sprayed vertically from the burner hole of the flue wall on the furnace surface into the flue for combustion, and the flame flows in a W shape under the action of the baffle wall in the flue, and enters the flue of the next furnace room, and remains Carry out W-shaped flow until it enters the smoke exhaust device at the end of the flame system and is discharged into the main flue of the furnace. In ...

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Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a heating structure at the bottom of the material box of the anode roasting furnace for aluminum. Reduced furnace production capacity, large burning loss of filling materials, short replacement cycle of flue wall, unfavorable for energy saving and emission reduction, etc.

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