Aluminum melting furnace heating chamber provided with spiral fire guide flue

Abstract

The invention discloses an aluminum melting furnace heating chamber provided with a spiral fire guide flue. The aluminum melting furnace heating chamber comprises a heating chamber (1), a spiral partition layer (11), the spiral fire guide flue (2), a flame flue (3) and a smoke flue (4). The technical scheme adopted by the invention is that the inner wall of the heating chamber is provided with the spiraling spiral partition layer, the outer wall of a crucible is enclosed by the spiral partition layer to form the spiral fire guide flue, and the spiral fire guide flue is located between the upward side of the mouth of the flame flue and the downward side of the mouth of the smoke flue of the inner wall of the heating chamber; by utilizing the spiral fire guide flue, the contact time of flames and the crucible is prolonged, the distance from the flames to the crucible is extended, and the heat exchange time is increased, so that heat exchange is more sufficient; hot smoke is smoothly discharged into atmosphere to reduce the internal pressure of the heating chamber; by utilizing the energy storage and heat preservation function of the spiral partition layer, room temperature loss in the heating chamber is delayed so as to keep the aluminum alloy melting temperature in the crucible, so that the goals that the internal pressure reduction, smooth gas flow and energy storage and heat preservation are achieved by the biomass fuel aluminum melting furnace heating chamber.

Description

technical field [0001] The invention relates to a heating chamber of a biomass fuel aluminum melting furnace, specifically refers to a heating chamber of an aluminum melting furnace equipped with a spiral fire guide that burns biomass fuel and melts aluminum alloy from a solid state to a liquid state room. Background technique [0002] Aluminum melting furnaces are usually melting furnaces heated by burning fossil fuels, such as coke furnaces, oil furnaces, or melting furnaces heated by electricity, such as electric melting furnaces. Aluminum melting furnaces heated by burning solid biomass fuels are called biomass fuel melting furnaces. Aluminum furnace, because the biomass fuel aluminum melting furnace follows the structure of the coke furnace, the thermal insulation performance is poor, and the biomass fuel burns rapidly, lacks continuous embers heat, a large amount of heat is lost through the flue, and the aluminum alloy in the crucible maintains the melting temperature....

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Problems solved by technology

[0002] Aluminum melting furnaces are usually melting furnaces heated by burning fossil fuels, such as coke furnaces, oil furnaces, or melting furnaces heated by electricity, such as electric melting furnaces. Aluminum melting furnaces heated by burning solid biomass fuels are called biomass fuel melting furnaces. Aluminum furnace, because the biomass fuel aluminum melting furnace follows the structure of the coke furnace, the thermal insulation performance is poor, and the biomass fuel burns rapidly, lacks continuous embers heat, a large amount of heat is lost through the flue, and the aluminum alloy in the crucible maintains the melting temperature. Insufficient capacity, in order to maintain the temperature in the furnace, the feeding material must be continuously burned, resulting in high fuel consumption and high cost of melting aluminum; for this reason, the existing technology uses a ring-shaped fire barrier between the furnace wall of the heating chamber and the crucible , use the stagnation effect of the fire barrier layer on the flame to enhance heat exchange and delay the loss of room temperature in the heating chamber to maintain the melting temperature of the aluminum alloy in the crucible, but the stagnation effect of the fire barrier layer also causes the internal pressure of the heating chamber to be too high , the air flow is not smooth, which makes it difficult for the combustion chamber to fully burn. Therefore, the prior art has the problems and deficiencies of high internal pressure and poor air flow

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