Energy-saving mesh belt type air isothermal furnace

Abstract

The invention relates to an energy-saving mesh belt type air isothermal furnace comprising a heat insulation shell, wherein the heat insulation shell is internally divided into an isothermal region, a heating region and a heat exchange region; a feeding conveyor mesh belt is arranged above the inside of the heat insulation shell, and a discharging conveyor mesh belt is arranged below the inside of the heat insulation shell; one side of the heat insulation shell is provided with a feeding hole and a discharging hole; the isothermal region and the heating region are internally provided with heaters; the feeding conveyor mesh belt arranged in the isothermal region is shorter than the discharging conveyor mesh belt; the heat insulation shell arranged at the tops of the isothermal region and the heating region is provided with a high-temperature circulating fan; the heat insulation shell arranged at the top of the heat exchange region is provided with a heat exchange fan. The energy-saving mesh belt type air isothermal furnace can be used for fully-automatically carrying out high-temperature tempering treatment and is provided with the heat exchange fan at a heat exchange section, so that heat exchange can be sufficiently carried out between a hot material and a cold material; the high-temperature circulating fan is arranged in the heating region and the isothermal region, so that the furnace temperature is more uniform; heating pipes are distributed at the upper, middle and lower parts of the heating region and a heat insulation region in the furnace, and are uniform in heating, capable of ensuring good uniformity of furnace temperature and long in service life.

Description

technical field [0001] The invention relates to a heat treatment equipment in the machinery industry, in particular to an energy-saving mesh belt air isothermal furnace. Background technique [0002] At present, when processing metal products, in order to ensure the quality and hardness of the products, surface treatment must be carried out on the products, and high-temperature tempering is one of the surface treatments. High-temperature tempering is to quench the parts and then heat them to 500 ~650°C, usually heated to a certain temperature of the psk line (critical point Ac1), and cooled at an appropriate speed after holding the heat for a period of time; however, the heated product is usually placed in the cooling device manually to slow down Slow cooling, which increases labor costs, and because the temperature is not well controlled, the quality of high temperature tempering is not very good. Contents of the invention [0003] The technical problem to be solved by t...

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Problems solved by technology

[0002] At present, when processing metal products, in order to ensure the quality and hardness of the products, surface treatment must be carried out on the products, and high-temperature tempering is one of the surface treatments. High-temperature tempering is to quench the parts and then heat them to 500 ~650°C, usually heated to a certain temperature of the psk line (critical point Ac1), and cooled at an appropriate speed after holding the heat for a period of time; however, the heated product is usually placed in the cooling device manually to slow down Slow cooling, which increases the labor cost, and because the temperature is not well controlled, the quality of high temperature tempering is not very good

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