Energy-saving mesh belt air isothermal furnace

Abstract

The invention relates to an energy-saving mesh-belt type air isothermal furnace, which includes a heat-insulating shell, which is divided into an isothermal zone, a heating zone and a heat-exchanging zone. There is a discharge transmission mesh belt under the inside of the shell, a feed port and a discharge port are set on one side of the heat preservation shell, heaters are installed in the isothermal zone and heating zone, and the feed conveyor mesh belt is in the isothermal zone. The length is less than the length of the discharge conveying mesh belt. A high-temperature circulation fan is installed on the heat preservation shell at the top of the isothermal zone and the heating zone, and a heat exchange fan is set on the heat preservation shell at the top of the heat exchange zone. This equipment can carry out high-temperature tempering treatment fully automatically. There is a heat exchange fan in the heat exchange section, which can fully exchange the heat carried by the hot material with the cold material; The temperature is more uniform; the heating tubes are distributed in the upper, middle and lower parts of the heating zone and the heat preservation zone in the furnace, with uniform heating, good furnace temperature uniformity and long 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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