On-line heat preservation and slow cooling device for steel belt manufacturing assembly line

Abstract

The invention discloses an on-line heat preservation and slow cooling device for a steel belt manufacturing assembly line. The on-line heat preservation and slow cooling device comprises a steel belt roll tray and a heat preservation cover, a V-shaped groove is formed in the upper end of the steel belt roll tray, the lower end of the steel belt roll tray is connected with the assembly line, and a rectangular chassis is arranged at the middle portion of the steel belt roll tray; the heat preservation cover is arranged on the chassis to define a heat preservation cavity, an inner cavity at the upper portion of the heat preservation cover is matched with a steel belt roll in shape and is arc, the lower portion of the heat preservation cover is in a pipe shape, and the cross section of the lower portion of the heat preservation cover is matched with the chassis; the chassis and the heat preservation cover are both of multi-layer composite heat preservation structures, and each multi-layer composite heat preservation structure comprises a radiant heat reflection layer, a heat isolation layer and a protection layer; the radiant heat reflection layers are arranged on the inner surfaces of the heat preservation cavity; the protection layers are arranged on the outer surface of the heat preservation cavity; and the heat isolation layers are arranged between the radiant heat reflection layers and the protection layers. The heat preservation and slow cooling device is arranged in a conveying link of the steel belt roll subject to hot rolling, deformation caused by substantial temperature variation of the steel belt roll in the conveying link is prevented, and influences on the follow-up processes are eliminated.

Description

technical field [0001] The invention relates to the technical field of steel strip manufacturing equipment, in particular to an online thermal insulation and slow cooling device for a steel strip manufacturing line. Background technique [0002] In the existing steel strip production technology, the assembly line is used to realize the continuous processing of multiple processes of hot rolling and cold rolling, and the high-quality steel strip can be produced efficiently through the dedicated assembly line. [0003] However, in actual production, the billet is actually conveyed in an open environment, which causes a large temperature change of the steel strip during the conveying link, especially when the billet is rolled into a steel strip coil through hot rolling. In the process of being sent to cold rolling, the temperature of the steel strip coil will drop due to the loss of a large amount of heat in the conveying link, and then the steel strip will be deformed, which wi...

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Problems solved by technology

[0003] However, in actual production, the billet is actually conveyed in an open environment, which causes a large temperature change of the steel strip during the conveying link, especially when the billet is rolled into a steel strip coil through hot rolling. In the process of being sent to cold rolling, the temperature of the steel strip coil will drop due to the loss of a large amount of heat in the conveying link, which will cause the steel strip to deform, which will have a negative impact on the subsequent cold rolling process.

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