Process for coating the inner wall of a furnace or like apparatu

Details Process for coating the inner wall of a furnace or like apparatu Process for coating the inner wall of a furnace or like apparatu

1979-10-10

1981-07-21

Pavelko, Thomas P.

Plastic and nonmetallic article shaping or treating: processes

Furnace lining formation or repair

F27D 116

Patent

active

042798450

ABSTRACT:
In this process, there is carried out first of all, through orifices formed in the wall of the apparatus and by means of a suitable device, the injection of a first product for filling in the vicinity of the inner face of this wall the porosities of the charge and forming a whole with this charge. After a suitable period of time which ensures that the aforementioned effect is achieved, there is injected a second product which must form the permanent coating under sufficient pressure to be able to slip between the inner wall and the first coat previously formed by taking advantage of the compressibility of the charge. In this way it is possible to spread in a substantially uniform manner on the inner wall of the furnace a product which is capable of constituting the lining. This product is closely applied to the inner wall owing to the pressure of injection without this product contacting the charge of the furnace, the latter having preformed in the course of the operation the function of the necessary temporary form. The process finds application in particular in blast-furnaces.

REFERENCES:
patent: 609733 (1898-08-01), Coker
patent: 2883708 (1959-04-01), Sim
patent: 4196159 (1980-04-01), Brotzman

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