Sealing device for heat treatment furnace provided with disc rollers and heat treatment furnace provided with the same

Abstract

The purpose of the present invention is to provide a sealing apparatus for a heat treating furnace, which is in contact with both side surfaces of a carousel roll in the heat treating furnace to block heat. The sealing apparatus can show effective sealing performance even at a high temperature, and operates so as to maintain a good contact state even when abrasion or partial deviation occurs in the carousel roll or the sealing apparatus. Accordingly, the sealing apparatus for a heat treating furnace having a carousel roll installed therein, according to the present invention, is installed on a wall structure of the heat treating furnace at both sides of the carousel roll to block heat leaking from a gap between the lateral side of the carousel roll and the wall structure of the heat treating furnace. The sealing apparatus comprises: a refractory block which is arranged such that the longitudinal direction thereof is parallel to the longitudinal direction of the carousel roll; a guide support which supports the refractory block and guides the movement of the refractory block to make contact with and be separated from the carousel roll, the guide support being fixedly installed on the wall structure of the heat treating furnace; and a driving device for moving the refractory block back and forth with respect to the guide support so that the refractory block is brought into contact with the carousel roll and is separated from the carousel roll.

Description

technical field [0001] The present invention relates to a sealing device of a heat treatment furnace provided with disc rollers and a heat treatment furnace provided with the sealing device. More specifically, in a heat treatment furnace provided with disc rolls, leakage of hot gas from the heat treatment furnace may occur due to a vacant space between the sides of the disc rolls and the furnace wall. The present invention relates to a sealing device provided in a heat treatment furnace for preventing leakage of the hot gas, and a heat treatment furnace provided with the sealing device. Background technique [0002] Korean Patent Registration No. 10-1147482 and Korean Patent Registration No. 10-0903631 describe the configuration of the disk roll. [0003] The disc rolls are arranged in a heat treatment furnace for steel strips to support hearth rolls for supporting the steel strips, i.e., as figure 1 As shown, two hearth rolls 2 are arranged above and below the disc roll 1...

AI Technical Summary

Problems solved by technology

[0011] However, as the aforementioned sealing device 3 is used for a long time, the contact part of the refractory member 4 and the disc roller 1 will be worn, and when the disc roller 1 rotates, due to the friction with the steel strip 8, some parts will wear out. Falling off, unable to maintain good contact, and part of the channel for heating gas leakage

[0012] In addition, because the iron frame 4 will be deformed by high-temperature hot air, its shape cannot maintain a uniform plane, so the supported plate-shaped refractory member 4 cannot maintain its shape, and becomes curved, so that it is not compatible with the disc roller 1. worse contact

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