Furnace body of a continuous annealing furnace

Abstract

The invention discloses a furnace body of a continuous annealing furnace. The furnace body is composed of connecting a plurality of independent furnace bodies, wherein two neighboring independent furnaces are separated through a furnace door. Each independent furnace body comprises a furnace body skeleton and a sealing cover arranged outside the skeleton, wherein the sealing cover is square-type, two ends of the furnace body are provided with the furnace body connected with the sealing cover, the sealing cover of each independent furnace body is provided with an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are respectively connected with an air outlet of a warm air machine and an air inlet of the warm air machine, the air inlet pipe and the air outlet pipe are respectively communicated with an air outlet pipe inside the furnace and an air backflow pipe inside the furnace, are at least one supporting pillar, are not communicated, and are hollow pipes with a plurality of air holes arranged on the surfaces of the hollow pipes, and a guide rail pressing block is arranged at the bottom of the skeleton of the furnace body. The furnace body of the continuous annealing furnace can effectively use heat source and improve heating efficiency.

Description

technical field [0001] The invention relates to a furnace body structure, in particular to a furnace body of a continuous annealing furnace. Background technique [0002] In the production process of aluminum foil, annealing is one of the important links in the heat treatment process. The annealing process includes several stages of heating, heat preservation and cooling. In the prior art, the annealing equipment for aluminum foil mainly adopts the traditional box-type annealing furnace. The box-type annealing furnace has only one furnace space. After all the aluminum foils are stacked inside, the temperature is slowly raised to the specified temperature, and after a period of heat preservation, the temperature is slowly lowered; Finally, push out all the aluminum foils, and wait until the furnace cavity is completely cooled before raising the temperature of the next furnace; the whole cycle takes 3-5 days. [0003] During the heating process of the box-type annealing furna...

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Problems solved by technology

[0004] 1. The heating, heat preservation and cooling processes of the box-type annealing furnace are carried out in one furnace, and the annealing cycle is long;

[0005] 2. The capacity of the box-type annealing furnace is large, the heat demand is large during the heating process, and the heat loss is serious;

[0006] 3. The capacity of the box-type annealing furnace is large, the air flow is not uniform during the heating process, the aluminum foil is not evenly heated, the heating efficiency is low, and the rolling oil is not completely volatilized

[0007] 4. The capacity of the box-type annealing furnace is large, the air duct is arranged in the furnace with complex structure, and the material consumption of the furnace body is large

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