gas cooler

Abstract

The present invention provides a gas cooler capable of being reduced in size, capable of preventing exhaust gas from leaking to the outside, and capable of stably removing dust. The gas cooler (1) of the present invention has: a plurality of cooling pipes (5), which are arranged in the cooling chamber (3); dust removal parts (7), which are slidably arranged on the peripheral surface of the cooling pipes; reciprocating A moving mechanism (9), which makes the dust removal component reciprocate along the axial direction of the cooling pipe. The reciprocating mechanism is provided with: a holding member (17), which holds the dust removal member reciprocally movable and protrudes in a direction intersecting with the axial direction of the cooling pipe; an opening (19), which is provided on the side wall (3a) of the cooling chamber ), which enables the holding member to protrude from the side of the cooling chamber and reciprocates; a sealing mechanism (21), which prevents the gas in the cooling chamber from leaking to the outside; a moving body (22), which supports the holding member protruding from the opening and capable of reciprocating movement; and a drive mechanism (24) that reciprocates the moving body.

Description

technical field [0001] The present invention relates to, for example, a gas cooler (exhaust gas cooling device) for cooling the exhaust gas of a facility that manufactures high-concentration silicon steel strips by siliconizing treatment by CVD (chemical vapor deposition). Gas cooler for gas cooling. Background technique [0002] The exhaust gas of the furnace equipment for manufacturing high silicon steel strip contains ferrous chloride (FeCl 2 , hereinafter referred to as ferric chloride), this substance has physical properties of a boiling point of 1024°C and a melting point of 670°C. [0003] When the exhaust gas is rapidly cooled from the temperature in the furnace to below the melting point, ferric chloride is produced as a fine powder in the exhaust gas. When the exhaust gas is further cooled from this temperature by the gas cooler, ferric chloride (dust) adheres to the heat transfer surface of the gas cooler. Therefore, a dust removal device is required in the gas...

AI Technical Summary

Problems solved by technology

In addition, if the sealing performance of the sliding part is enhanced in order to improve the sealing effect, the sliding resistance increases accordingly, and the driving force needs to be further increased.

[0011] Therefore, in the drive mechanism for driving the conventional dust removal plate, there is a problem that the entire device is enlarged in order to realize stable drive.

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