SU1201651A1 - Metallurgical furnace lining - Google Patents

Description

The invention relates to metallurgy and can be used in the development of new and reconstruction of known metallurgical furnaces.

The purpose of the invention is the mechanization of the laying process and the improvement of working conditions in the repair of furnaces.

FIG. 1 shows the furnace design, general view; in fig. 2 - installation and fixation of blocks in vertical guides; in fig. 3 - block design; in fig. 4 - metal frame of the block; in fig. 5 - the design of the vertical retainer; in fig. 6 - the design of the radial locking unit; in fig. 7 - block design / version.

The lining of metallurgical furnaces consists of refractory blocks 1, installed in vertical guides 2, welded, for example, to the casing (furnace) 3 and fixed in them with radial fixatives, which are the core 4, which ends, on the one hand, with a bevel head entry into the guides, on the other hand - thread under the mounting nut '5. The clamping of the retainer in the guides 2 is carried out by the spring 6. The radial locks are installed in the guide brackets 7, having depressions 8 and located on the side walls of the metal frame 9, which in turn is located on the cold part of the block 1. The grooves 10 are made on the surface of the block ensuring the density of masonry.

The blocks 1, assembled in a row, are fixed in the guides 2 with the help of vertical clamps, representing a clamp 11, moving along the rod 12, which is fixed in the casing 3 of the furnace. A release spring 13 is mounted between the casing 3 and the clamp 11 on the rod. The clamp is fastened with a nut 14. To install the unit into the guides and remove it during repair, a mounting bracket is provided on it, which is a metal rod 15 poured into the monolith of the unit. To capture the bracket hook lifting device in the block under the rod made deepening.

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Implementation of the proposed lining of metallurgical furnaces is as follows.

Vertical guides 2 are welded to the casing 3 of the furnace; they have a cross section of ⁵ I-beams. The distance (pitch) between the guides is determined by the dimensions of unit 1, which in turn are determined by the dimensions of the furnace and the carrying capacity of the devices used for mounting the units. 10 Lifting device block the top lead in the guides 2 and set them using the guide brackets 7.

Since in order to create a labyrinth seal, two types of blocks ^{15 are made} with grooves displaced relative to each other, it is necessary to alternate them when laying in guides. The presence of a labyrinth seal prevents breakthrough of the melt between the blocks and allows for the installation of lining without using

refractory mass or powder.

In the radial direction, the blocks are fixed with the help of radial fixators mounted on them. Fixing the entire row to prevent the blocks ^{25 from} moving upwards is carried out after the last block in the row of the (upper) block. To do this, the clamps 11 vertical clamps rotate 180 ° and set above the blocks. Then with the help of nuts 14 of them for ₃₀ fasten.

The proposed lining of metallurgical furnaces allows you to mechanize the process of assembling blocks, as well as to quickly replace any unit that has emerged from 35. The creation of labyrinth seals during contact and the presence of radial and vertical retainers eliminate melt breakthrough and allow for the assembly of blocks without the use of binders (refractory mass or powder), ⁴⁰ thereby saving expensive material and reducing the time spent on construction and repair, as well as improving working conditions of personnel engaged in the repair of metallurgical furnaces.

Figs!

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FIG. four·

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FIG. five

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FIG. 7

Claims (2)

1. Lining of metallurgical furnaces, containing a casing, refractory blocks with grooves on the surface and fastening elements, characterized in that that, in order to mechanize the masonry process and improve working conditions in the repair of furnaces, the fastening elements are made in the form of vertical guides fixed along the perimeter on the inner surface of the furnace casing, while on the surface of the refractory blocks facing the casing a metal frame is fixed with brackets on the side walls. 2. Lining according to Clause T, characterized in that the brackets of the metal frame of the refractory blocks have radial clamps and vertical clamps on the outer surface of the casing. Rig. one 1201651 one