Mesh-belt built-in hot-air cyclic heating tempering furnace and heating method thereof

Abstract

The invention provides a mesh-belt built-in hot-air cyclic heating tempering furnace and a heating method thereof. The mesh-belt built-in hot-air cyclic heating tempering furnace is characterized by comprising a hot-air internal cycle system, a gas flow acceleration plate and a gas flow guide plate, wherein the hot-air internal cycle system comprises a gas heating area, a treated object heating area located on the lower part of the hot-air internal cycle system, and a volute fan; a partition for the gas heating area and the treated object heating area is arranged between the gas heating area and the treated object heating area; the gas flow acceleration plate accelerates a gas flow and enables a gas to arrive at a suction port of the fan, thus realizing an internal cycle of the gas flow; and the gas flow guide plate changes the heated gas flow output from the fan to move in a reverse direction, heats the heated gas flow from the lower-layer treated object heating area, and returns the gas flow to form a cycle. The mesh-belt built-in hot-air cyclic heating tempering furnace and the heating method thereof, which are provided by the invention, achieve uniform temperature distribution in the furnace and greatly reduce the temperature difference of the same section. The mesh-belt built-in hot-air cyclic heating tempering furnace has the advantages of being capable of reducing a manufacturing cost, energy-saving, low in noise, convenient to maintain, and the like.

Description

technical field [0001] The invention relates to a heating tempering furnace, in particular to a mesh belt type built-in hot air circulation heating tempering furnace and a heating method thereof. Background technique [0002] In the prior art, for the mesh-belt tempering furnace in heat treatment, the more common temperature equalization system generally uses a separate fan for each zone to stir, so that the local air flows, so as to achieve the purpose of uniform temperature in this zone, which is relatively short and A small tempering furnace works well, but for a wide and long tempering furnace, it is necessary to configure many separate stirring fans (increased cost), and because the furnace body is too wide, the air far away from the fan is not sufficient. Flow, resulting in a large temperature deviation from other places, which is a fatal flaw that is not allowed on heat treatment equipment. [0003] See Annex 1 for the structure of the tempering furnace using the tra...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a mesh-belt type built-in hot air circulation heating tempering furnace, which solves the problem of uneven temperature distribution, easy heating dead angle, and need for multiple sets of stirring systems in the existing mesh-belt tempering furnace for heat treatment, which increases the cost and reduces the failure rate. Increase and other issues

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