JP2564195Y2 - Blast furnace tapping lining - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a lining of a blast furnace tapping gutter.

[0002]

2. Description of the Related Art Conventionally, the lining of a blast furnace tapping gutter has been a lining having an integral structure of an irregular refractory. When it was broken by the breaker 3, it collapsed to a place other than the applicable place, and the repair range was expanded, and the repair material often increased. Further, the construction material of the gutter for molten metal disclosed in Japanese Patent Application Laid-Open No. 49-9580 is to reuse the scrap debris of the stamp material of the gutter, and the construction and repair method of the gutter is a conventional method. Was. A hot blast furnace gutter repair method disclosed in Japanese Patent Publication No. 59-1052 is a method of spraying an amorphous refractory on a lining of a blast furnace gutter in a high temperature state. Could not be repaired.

[0003]

Problems to be solved by the present invention Problems to be solved by the present invention are described below. As shown in FIG. 2, the erosion site 5 of the lining of the blast furnace tapping gutter has a gourd shape, and the lining of the slag line portion 6 is extremely large in erosion, and the range to be broken is enlarged. For this reason, the parts that have not been damaged must be destroyed. When the lining is broken by the breaker 3 as shown in FIG. 3, the lining block 4 is damaged as in the lining block 4 broken by the breaker. The present invention has been made to solve these problems.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a lining of an irregular refractory for a blast furnace tapping gutter, which is buried in the middle of the thickness of the lining of the tapping gutter side wall and in the depth direction of the gutter. A blast furnace tapping gutter lining characterized by having a silicon carbide brick plate.

[0005]

The structure and operation of the present invention will be described below with reference to the drawings. As shown in FIG. 1, first, the inner frame 7 is set in the blast furnace tapping gutter, and a cast gutter material is constructed between the inner brick 8 and the inner frame 7 of the gutter. Before the pouring gutter material is hardened, the silicon carbide-based brick plate 2 is pushed in from the upper part of the wall as shown in FIG. 1 and set. The lower end of the silicon carbide brick plate is located at the slag line section 6 shown in FIG. The top of the brick plate is 50 from the top of the wall
mm. Table 1 shows an example of the silicon carbide brick plate used.

[Table 1] As shown in FIG. 2, the erosion site 5 of the lining of the blast furnace tapping gutter becomes a gourd shape, and particularly the slag line portion is greatly eroded by the slag, but is eroded by the highly corrosion-resistant silicon carbide brick plate. Is blocked. In the case of repairing the lining of the blast furnace tapping gutter, if the blast furnace is first broken along the inside of the silicon carbide brick plate 2 with the breaker 3 as shown in FIG.

[0006]

EXAMPLE As a result of using the present invention for a blast furnace tapping gutter, the lining was dismantled in a small number of places, and the dismantling was completed in a short time without breaking unnecessary places.

[0007]

[Effects of the invention] As a result of using the present invention for a blast furnace tapping gutter, the lining is dismantled in a small number of places, the dismantling is completed in a short time without breaking unnecessary parts, and the lining repair cost is reduced, and Since the repair was completed in a short time, the operation rate of the blast furnace was improved and the productivity was increased.

[0008]

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the construction of the present invention.

FIG. 2 is an explanatory view of the repair method of the present invention.

FIG. 3 is an explanatory view of a conventional repair method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lining of blast furnace tapping gutter 2 Silicon carbide-based brick plate 3 Breaker 4 Blocking of lining broken by breaker 5 Blast furnace tapping pit lining damaged part 6 Slag line part 7 Inner frame 8 Lining brick

Claims (1)

(57) [Scope of request for utility model registration] 1. A lining of an irregular-shaped refractory for a blast furnace tapping gutter, comprising a silicon carbide-based brick plate buried in the middle of the thickness of the lining of the tapping gutter side wall and in the depth direction of the gutter. The lining of a blast furnace tapping gutter characterized by that.