The invention discloses an aluminum
ingot melting furnace using
biomass fuel. The furnace is composed of a row material heating zone, a furnace bottom
melting tank, a
combustion chamber and a
fuel supply zone, and of an L-shaped structure comprehensively. The row material heating zone and the furnace bottom
melting tank are vertically overlaid, and therefore an L-shaped vertical part is formed, the main function of the part is to contain row materials and to absorb increased heat of convective heat, and the furnace chamber of the
melting tank contains
molten metal liquid. A convective heat heating control door is of a retractable structure which controls the temperatures of the row material heating zone and the melting tank. The other end of the melting tank is connected with the
combustion chamber. Spacings of bottom
combustion chamber furnace grates are sparse in the front and dense at the back, and the top of a feeding section is provided with a fuel expulsion guide plate to firmly compact the sparse
biomass fuel pushed in. A side wall combustion
oxygen supply air-line
system and a furnace grate combustion
oxygen supply air-line
system play the role of supporting combustion. The
fuel supply zone comprises a turnover box furnace grate, a fuel packing funnel and a fuel propulsion
system, and a box furnace grate preheating air-line system and the
combustion chamber are connected in a spliced mode to form an L-shaped bottom structure. The aluminum
ingot heating and
melting furnace using the
biomass fuel is simple in structure, and easy to
mount, debug, use, and maintain, and has good promotion value in industry.