JPS5848551Y2 - Furnace construction structure for stationary nonferrous metallurgical furnaces - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a furnace construction structure for a stationary nonferrous metallurgical furnace, such as a smelting furnace or a copper making furnace, using a continuous wire method.

Conventionally, in this type of furnace construction structure, in Fig. 1, 1 is a side wall;
2 is the lining brick, 3 is the insulation board, 4 is the steel shell, 5 is the refractory brick, 6 is the melt level, T is the inside of the furnace, 8 is the water cooling spray jacket, and the steel skin 4 is as shown in Figure 2. The bricks in the gas zone, which have eroded due to long-term use, are replaced from the inside of the furnace after they have cooled down after the plant has stopped operating. For example, this can be done from the outside by cutting out a part of the cylindrical steel shell 4, but there are problems such as the strength of the steel shell falling below the design value and the collapse of the upper brick when it is replaced. In recent years, with the development of furnace construction structures that utilize jackets that are below the level of the melt in the furnace, the life of the furnace body that is below the level of the melt in the furnace has been extended, resulting in the side wall structure of the gas zone affecting the life of the furnace itself. It is in a state.

The present invention solves this problem and provides a simple structure that allows the brick or copper block jacket of the side wall of the gas zone to be easily replaced even in the hot state and from the outside, and that can be conveniently implemented. be.

Next, an embodiment of the present invention shown in FIGS. 3 to 5 will be described.

1 is the side wall, 2 is the lining brick, 3 is the insulation board, 4 is the iron skin, 4a is the iron skin, 5 is the refractory brick, 6 is the melt level, 7 is the inside of the furnace, 8 is the water cooling spray jacket, 9 is the wire mesh, 10 is 1
Indicates flock.

That is, in the area of the iron skin 4, wide steel frames 4a are arranged in a lattice pattern as shown in Fig. 5, and bricks 5 or water-cooled copper block jackets are installed or stacked within the lattice. A heat insulating board 3 and a circular mesh 9 are placed on the exposed outside of the bricks to prevent hot air around the furnace, thereby creating a structure that suppresses heat radiation on the diffusion side.

Therefore, when a brick melts away, 1 block in the grid
0 can be replaced both hot and externally.

In addition, in order to improve the thermal efficiency of the furnace and reduce the amount of copper jackets to reduce the amount of heat taken away from the water-cooled copper jacket, a structure that allows bricks to be melted in advance to be replaced hotly and from the outside is needed. However, it is an effective method in terms of thermal efficiency, and repairs can be made without requiring long-term shutdowns of the furnace.

In this way, the present invention involves installing a wide steel frame in the form of a grid along the side wall of the gas zone section of a structure made of refractory bricks, etc., and installing bricks or water-cooled copper block jackets in the form of blocks within the grid. Features: Each 7" lock can be easily replaced, and repairs can be made hot and from the outside without stopping the furnace. This solves the problems of conventional products and has a simple structure that allows for convenient implementation. has.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a part of a conventional furnace, Fig. 2 is a perspective view of a conventional iron shell, Fig. 3 is a sectional view of a part of a furnace according to an embodiment of the present invention, and Fig. 4. Figure 5 shows an inner view of the two parts, and Figure 5 shows a perspective view of the iron skin. 5...Firebrick, 1...Side wall, 4a...Iron frame, 2
···brick.

Claims (1)

[Scope of utility model registration request] In a stationary non-metallurgical furnace, a wide steel frame is installed in the form of a lattice along the side wall of the gas zone of a structure made of refractory bricks, etc., and a brick or water-cooled copper block jacket is installed in the form of a block within the lattice. A furnace construction structure for a stationary non-ferrous metallurgical furnace characterized by the following.