Efficient energy-saving aluminum alloy bar electromagnetic heating furnace

Abstract

The invention discloses an efficient energy-saving aluminum alloy bar electromagnetic heating furnace which comprises a furnace body (1), an electromagnetic coil (2), a fan (3), a feeding machine (4)and a discharging machine (5). The furnace body used in the furnace is provided with a furnace wall, a furnace chamber, a left furnace door and a right furnace door. The furnace wall is composed of arefractory profiled groove, refractory bricks, a rock wool insulation layer and a furnace cover from inside to outside, the bottom of the furnace chamber is provided with a layer of glass-ceramic plate, the electromagnetic coil is a rectangular spiral tubular member formed by winding of a copper tube, and the electromagnetic coil is wound between the refractory profiled groove and the refractory bricks of the furnace wall with the axis in the left-and-right direction of the furnace chamber as the center; and the fan is located at the right furnace door, the feeding machine is located at a right furnace mouth, and the discharging machine is located at a left furnace mouth. By means of the device, through power frequency electromagnetic heating, an aluminum alloy bar is wholly heated from the inside, internal heat type heating reduces the energy consumption lost when the furnace doors are opened, and through the technical scheme that the fan balances the air temperature in the furnace, the aluminum alloy bar is heated to achieve the purposes of improving the heating efficiency, reducing the energy consumption and balancing the material temperature.

Description

technical field [0001] The invention relates to a heating furnace, in particular to an electromagnetic heating furnace for high-efficiency and energy-saving aluminum alloy rods used for heating up aluminum alloy rods for hot drawing and hot extrusion forming aluminum alloy profiles or products. Background technique [0002] In the prior art, the heating furnace used for heating aluminum alloy rods is a resistance furnace. The resistance furnace adopts the electric furnace wire to generate heat for heating. The materials in the furnace are heated from the outside to the inside; since the resistance furnace heats the air in the furnace to high-temperature air at the same time during the process of heating the materials in the furnace, when the furnace door is opened to take materials, the high-temperature air in the furnace will lose a lot, so High energy consumption and low heating efficiency; in addition, the aluminum alloy rods are long, and the furnace chamber of the resis...

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Problems solved by technology

[0002] In the prior art, the heating furnace used for heating aluminum alloy rods is a resistance furnace. The resistance furnace adopts the electric furnace wire to generate heat for heating. The materials in the furnace are heated from the outside to the inside; since the resistance furnace heats the air in the furnace to high-temperature air at the same time during the process of heating the materials in the furnace, when the furnace door is opened to take materials, the high-temperature air in the furnace will lose a lot, so High energy consumption and low heating efficiency; in addition, the aluminum alloy rods are long, and the furnace chamber of the resistance furnace used to heat the aluminum alloy rods is also deep and long. The deep and long furnace chamber has the problem of uneven furnace temperature in each section, resulting The material temperature of the aluminum alloy bar is not balanced, and the material temperature is not balanced, and the thickness of the product will be uneven when the aluminum alloy profile or product is formed by hot drawing or extrusion, and even a quality accident of product rupture will occur; therefore, the prior art There are problems and deficiencies such as low heating efficiency, high energy consumption, and unbalanced material temperature

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