JPS5926238Y2 - Fired carbonaceous brick for furnace wall lining - Google Patents

Description

[Detailed description of the invention] The present invention relates to a carbonaceous brick for lining the walls of an electric arc furnace. During,
This prevents burnout of the carbonaceous bricks due to oxidation, and also connects both edges of the iron plate with iron rods so that the bricks can be reinforced from the outside.

Next, the details will be explained with reference to the illustrated embodiment.
In FIG. 1, 1 is a fired flat fan-shaped carbonaceous brick body, 3 is a castable refractory attached to the outer end surface of the brick body 1, and engagement grooves 7, 7 are carved in the side surface of the brick body 1.

In Figure 1, 6 is a case in which the brick body 1 and the castable refractory 3 are to be fitted, and the upper and lower parts are made of thin iron plates with shapes corresponding to the upper and lower surfaces of the flat fan-shaped brick body 1 and the castable refractory 3. Appropriate parts of both side edges of the plate parts 2 and 2' are connected with iron rods 5, 5, and the brick body 1 and the castable refractory 3 are attached to each plate part 2 and 2' to this case 6.
The plate part 2 is fitted with a bonding mortar interposed between the
, 2' cover the upper and lower surfaces of the brick body 1 and the castable refractory 3, and the engagement groove 7 of the brick body 1 is engaged with the iron rod 5.

The castable refractory 3 is suitably a mixture of silicon carbide, a liquid resin, and clay, and the bonding mortar is suitably a mixture of silicon carbide, graphite, a liquid resin, and clay.

Since the fired carbonaceous brick of the present invention has the above-mentioned structure, bonding mortar is applied to the upper and lower surfaces of the brick body 1 and the castable refractory 3, and the narrow end surface of the inner end is inserted through the wide entrance of the case 6. Case 6 can be opened very easily by inserting the
At that time, the engaging groove 7 on the side surface of the brick body 1 is locked to the iron bar 5 of the case 6, so even if it is fan-shaped, the body 1 can be pulled out from the case 6 during handling. Also, since the upper and lower surfaces of the case 6 are covered by the upper and lower plate parts 2 and 2', the brick body 1 is not exposed during handling.
Or, damage or peeling of castable refractories etc. is prevented,
This is extremely convenient.

In addition, the upper and lower surfaces of the flat brick body 1, which have a large surface area, are covered with the upper and lower plate parts 2 and 2' made of thin iron plates of the case 6, and the castable refractories 3 are attached to the wide outer end surface on the side of the furnace wall iron skin. Therefore, during use, the brick body 1 is prevented from being burnt out due to oxidation of the carbonaceous brick, and the brick body 1 is reinforced from the outside by the case 6, and the brick body 1 is made to have sufficient strength by firing in advance. In combination, the durability of the furnace is significantly enhanced, and as mentioned above, in order to prevent oxidation of the brick body 1, only the upper and lower surfaces with large surface areas are covered with the plate parts 2 and 2' made of thin iron plates. Since the case 6 is formed by joining both sides of the sections 2 and 2' with the iron rods 5 and 5, the case 6 can be easily installed as described above, and it is easier to install the case 6 than when the entire brick is covered with an iron plate. It is lightweight and extremely convenient to handle.

Furthermore, the thickness of this brick can be finely adjusted by bending the iron rods 5, 5 that connect the upper and lower plate parts 2, 2'. 1 also by crimping the case 6 of the brick body 1
This has practical effects such as being able to prevent slippage.

[Brief explanation of the drawing]

The drawings show one embodiment of the carbonaceous brick of the present invention, and FIG. 1A is a perspective view of the brick body, and the opening is a perspective view of the case. 1...Brick body, 6...Case, 2
．． 2'... Same plate part, 3... Castable refractory, 5... Steel bar, 7... Engagement groove.

Claims (1)

[Scope of utility model registration request] A castable refractory material 3 is attached to the outer end surface of the flat fan-shaped fired carbonaceous brick body 1, and the upper and lower plate parts 2, 2' made of thin iron plates are connected at appropriate points on both side edges with iron rods 5, 5 to form a case. 6, the brick body 1 is fitted into the case 6 with the upper and lower plate parts 2, 2' with bonding mortar interposed between them, and the brick body 1 and the upper plate parts 2, 2' are connected to the case 6. A burnt carbonaceous brick for lining a furnace wall, which covers the upper and lower surfaces of a castable refractory 3, and which engages the iron bars 5, 5 with engagement grooves 7.7 cut into the side surfaces of the brick body 1, respectively. .