Heat preservation tunnel and heat preservation control method

Abstract

The invention relates to the field of hot rolling, in particular to a heat preservation tunnel for continuously transporting heat pipes, and a heat preservation control method. The heat preservation tunnel comprises a base, a motor, a transportation roller and a heat preservation tunnel frame, wherein the heat preservation tunnel frame comprises an upper cover, steel plates on the two sides, fireproof cotton, a fireproof castable and an electric heating device; the upper cover is positioned at the upper ends of the steel plates on the two sides to form an n-shaped frame; a cavity of the frame is filled with the fireproof cotton; the electric heating device is arranged on the inner side of the fireproof cotton; and the fireproof castable is smeared on the inner and outer sides of the frame. According to the heat preservation tunnel, from the point of device, the heat preservation tunnel is added on the basis of a traditional roller bed, the heat preservation tunnel frame comprises the upper cover, the steel plates, the fireproof cotton, the fireproof castable and the electric heating device, and resistance wires are hung on the fireproof castable at the innermost layer of the tunnel to form the electric heating device, so that a heat preservation function can be achieved, the temperature can be accurately controlled, the rolling technology is guaranteed, and the finished product rate is increased; and diaphragm-type sectional heating is adopted, so that the tunnel temperature rising speed can be effectively increased, and the temperature control accuracy is improved.

Description

Technical field [0001] The invention relates to the field of hot rolling, in particular to a heat preservation tunnel and a heat preservation control method. Background technique [0002] The roller table is an important equipment for conveying seamless pipes in the production process of seamless pipes, and plays the role of conveying seamless pipes between various processes. In the traditional seamless pipe production process, because the temperature of ordinary steel grades is not quickly lost and the temperature range required by the process is not strict, there is no protection and insulation measures on the conveyor roller table. [0003] In the process of rolling certain alloy metals, because certain alloy metals have high heat dissipation efficiency, and the requirements for the temperature range of each process are very small. Conveying on the traditional roller table, the heat loss cannot be controlled, and the temperature requirements of the next process cannot be met, w...

AI Technical Summary

Problems solved by technology

Transferred on the traditional roller table, it is impossible to control the heat loss, and it cannot meet the temperature requirements of the next process, so that the rolled seamless pipe cannot meet its performance requirements.

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