High-temperature carburizing multi-purpose furnace by adopting composite furnace liner structure

Abstract

The invention discloses a high-temperature carburizing multi-purpose furnace by adopting a composite furnace liner structure. The high-temperature carburizing multi-purpose furnace comprises a furnace door, a furnace shell, a hearth, a shell seat, a furnace interior guide rail and furnace bottom supporting bricks, wherein the furnace door is arranged on one side of the hearth; the hollow hearth is encircled by the furnace shell; the furnace shell is supported by the shell seat; the furnace interior guide rail is arranged above the furnace bottom supporting bricks. The high-temperature carburizing multi-purpose furnace also comprises a high-temperature fan, an air inlet pipe, an impervious brick and refractory fiber layer and a heating element, wherein the high-temperature fan is arranged above the furnace shell and extends into the hearth; the air inlet pipe penetrates through the furnace shell, and outside air can be introduced to balance the air pressure in the furnace; the impervious brick and refractory fiber layer is formed in a built hearth in a circular structure; the heating element penetrates through the furnace shell and extends to the bottom of the hearth. According to the high-temperature carburizing multi-purpose furnace, the heat storage capacity of equipment is reduced, the thermal load of equipment is reduced, the service life of the equipment is prolonged, and the thermal efficiency of the equipment is improved.

Description

technical field [0001] The invention belongs to heat treatment equipment, and specifically refers to the structural technology of the controllable atmosphere of the heat treatment equipment to seal the heating chamber of a box-type high-temperature carburizing multi-purpose furnace. Background technique [0002] The heating chamber of the existing high-temperature carburizing multi-purpose furnace mostly uses multi-layer impermeable bricks as the furnace body insulation layer. Due to the large heat storage capacity of the anti-seepage bricks, the heat load of the furnace body is high, the heating time of the equipment is long, and the energy consumption is high. At the same time, due to The deformation of bricks caused by heating cannot be released, resulting in cracks after long-term use, reducing the service life of the equipment, and causing a thermal short circuit inside and outside the furnace, reducing thermal efficiency. Contents of the invention [0003] The purpos...

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Problems solved by technology

[0002] The heating chamber of the existing high-temperature carburizing multi-purpose furnace mostly uses multi-layer impermeable bricks as the furnace body insulation layer. Due to the large heat storage capacity of the anti-seepage bricks, the heat load of the furnace body is high, the heating time of the equipment is long, and the energy consumption is high. At the same time, due to The deformation of bricks caused by heating cannot be released, resulting in cracks after long-term use, reducing the service life of the equipment, and causing a thermal short circuit inside and outside the furnace, reducing thermal efficiency

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