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Patent Searching and Data


Title:
FURNACE WALL REPAIRING METHOD AND COOLING CYLINDER
Document Type and Number:
Japanese Patent JPH09210572
Kind Code:
A
Abstract:

To enable a press fitting of irregular-shaped refractory material to be performed repeatedly at a heat spot location of a furnace wall of a blast furnace and to enable a durability of refractory material to be extended by a method wherein a hollow cooling cylinder is fitted to an opening part of an iron plate at the heat spot location and the irregular-shaped refractory material is press fitted to the furnace wall through a hollow part of the cooling cylinder.

A plurality of cooling plates 2 are spaced apart by a predetermined distance and inserted into bricks 5 and iron plates 4 acting as a furnace wall of a furnace body such as a blast furnace and the like, the iron plates 4 and the bricks 5 are opened at a location of the furnace wall of the furnace body where a less amount of worn-out and damaged residual bricks 5 is placed, i.e., a heat spot location 21 and then hollow cooling cylinders 1 are inserted into openings 4a. A main body 10 of each of the cooling cylinders 1 is comprised of a cylinder, wherein a partition valve 6 having a press-fitting hose 9 connected to it is connected to the rear end of the cylinder and at the same time the main body 10 is provided with an inlet 7 and an outlet 8 for use in circulating cooling water. Then, irregular-shaped refractory materials 3 fed from a press-fitting machine are press fitted from a hose 9 to the furnace body, the irregular-shaped refractory materials 3 are filled at the extremity end of each of the cooling cylinders 1 so as to form a layer of the refractory materials 3 at the furnace wall.


Inventors:
TAMURA KENJI
ANDO AKINOBU
UEDA SHUJI
MORIYA KATSUSHI
FUJITA MASANOBU
Application Number:
JP2145196A
Publication Date:
August 12, 1997
Filing Date:
February 07, 1996
Export Citation:
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Assignee:
NISSHIN STEEL CO LTD
TOBATA SEISAKUSHO KK
International Classes:
C21B7/06; C21B7/10; F27D1/16; (IPC1-7): F27D1/16; C21B7/06; C21B7/10
Attorney, Agent or Firm:
曾我 道照 (外6名)