FI61243B - FODRING AV EN KALOTTFORMIG BOTTEN - Google Patents

Description

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National Board of Patents and Construction (44) Nttt »v« k.ip «o« |. te.M-ik.hun

Patent »OCh r« gi * terttyr * lMn AnaBtei uthfd och utl. »Krlft * n pvMinnd 26.02.82 (32) (33) (31) Requested« uoHnua -feglrd prlorH.t 06.05.76

Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) P 2620035-1 (71) Didier-Werke AG, Lessingstrasse 16, 62 Wiesbaden, Federal Republic of Germany-Förbundsrepubliken lyskland (DE) (72) Gunter Simon, Wiesbaden, Federal Republic of Germany-Förbund DE) (7 * 0 Oy Kolster Ab (5 * 0 Kalotin-shaped base lining - Fodring av en kalottformig botten

The invention relates to a liner-shaped base liner, in particular for ferro-alloy furnaces and steel converters, in which the base stones are arranged in groups in parallel rows, the rows of adjacent groups running horizontally at right angles to each other and the rocks

Such a liner is known from U.S. Pat. No. 3,396,962. In this liner, rows of base layer are formed of transverse solid stones. This inevitably leads to the fact that, due to the different lengths of the rows, the outer surface of the outermost foundation stones of each row has a different slope. The interconnected support stones arranged in several layers must therefore be cut or chopped to match each slope and length from rectangular stones, which requires a lot of fitting work. The need to cut the support stones, in particular according to each support bevel of the outermost bedrock, results in relatively large joints in this particularly stressed area of the pavement, through which joints liquid metal can penetrate.

2 61243

The object of the invention is therefore to provide a caliper-shaped base liner which can be manufactured in a flexible and economical manner using as few standardized stone sizes as possible and in which critical joints between the base and the sidewall can be easily removed in a particularly stressed area between the support stones and adjacent standardized pavers.

This object is solved according to the invention in such a way that the sleeve stones are mixed together or together with the rectangular stones in such a way that all the outermost standardized foundation stones of the rows have a uniform slope | tukiviiste. This allows for the rational lining of calotte-shaped bases using a few, i.e. 2-3 standardized stone-I co and a special support stone with a corresponding chamfered surface and requires little fitting work in the four chamfered corners. The risk of liquid metal flowing through the critical joints between the support stones and the adjoining foundation stones has been eliminated because a narrow-jointed fit can be achieved. Supporting stones of uniform shape with a single-sided chamfered surface having the same slope are useful. The support stones do not need to be adapted to the bevel surface. They are pushed only parallel to the vault stones with each other or with rectangular stones by mixing along a support bevel of uniform slope. In this case, the support stones must not be pushed outwards but inwards relative to the perimeter wall. This avoids notches in the transition area that could weaken the wall. The area between the outer edge of the support stones and the next back wall is filled with a sealant that meets the wear and durability requirements in this "shadow area".

The mutually cohesive support stones may have the shape of either an oblique rectangular or a one-sided oblique parallelepiped.

When the support stones have the shape of an oblique rectangular triangle, the support stones can be divided into individual stones of similar shape, which may be necessary partly for printing reasons.

If the liner has two superimposed base layers, in which case the foundation stones of each base layer are in parallel, very slightly stepped rows running in groups horizontally at right angles to each other, then the superimposed rows of both base layers are preferably shifted to 3 61243.

Other features, advantages and uses of the present invention will become apparent from the following description of an exemplary embodiment shown in connection with the accompanying drawings.

Figure 1 shows a section of the lower corner area of a furnace with a bottom lining according to the invention.

Fig. 2 is a section corresponding to the line A-A in Fig. 1.

Figure 3 is a partial perspective view of a bottom liner according to the invention.

Fig. 4 is another perspective view of the base layer of Fig. 3, however, rotated 90 °.

The calyx-shaped base 1 consists of two base layers 14 and 15. The base layers 14 and 15 have (preferably more or more conical) vaults 6 and 7 and in larger furnaces further rectangular stones 8 mixed in rows 2 so that the outermost base stones 4 9. In most cases, all vault stones 6 can have the same conicity. In the four sector-shaped groups 3, the rows 2 run parallel in groups, the rows 2 of the adjacent groups 3 running horizontally at right angles to each other. The rows 2 of the individual sector-shaped groups 3 then meet each other in a Parket-like manner at four chamfers. The row 2 on the shaft of the furnace, consisting of sleeves 6, 7 of group 3 and rectangular stones 8 at larger bottoms, runs radially, the second rows 2 of the same group 3 run parallel to the axial row 2 and are slightly staggered relative to each other (compare Figures 3 and 4). . The support stones 5 are connected to the support bevels 9 with a uniform slope in a narrow seam, because the support stones 5 have a correspondingly shaped chamfered surface. In the case shown, the support stones 5 are divided into four individual stones 5 'of the same shape for weight reasons. In the exemplary embodiment shown, the support stones 5 have the shape of an oblique rectangular triangle. But they can also have, for example, the shape of a parallelepiped obliquely corresponding to the uniform inclination of the support bevel 9. The sidewalls 16 resting on the support stones 5. The support stones 5 in the individual rows 2 only need to be moved parallel to each other in such a way that they are located in a narrow seam against each outermost foundation stone 4. The foundation stone 4 can be a vault stone 6 or 7 and in the area outside the beveled corners “61243 also a rectangular stone 8. Therefore, special cutting of the support stones 5 to obtain a suitable slope is not necessary.

. However, a very narrow seam is formed. The displacement of the support stones 5 should take place only to a small extent, so as not to form from the cavity with respect to the wall above. Rectangular stones 13 are arranged in the corner areas 12 between the outermost paving stones 4 and the adjoining support stones 5 between the support stones 5 and the back wall 10. In case the rectangular stones 13 have to be shortened, the break points in the direction of the filling material 11 are arranged. . In individual cases, it may be necessary for the support stones 5 of the lower base layer 15 to be cut off from the upper inner corner 17, which is not a major task. The space between the two base layers 14 and 15 is filled with a granular substance.

Claims (5)

61243 Claims. A liner-shaped liner, in particular for ferrole alloy furnaces and steel converters, in which the bedrock is arranged in groups in parallel rows, the rows of adjacent groups running horizontally at right angles to each other and wherein the rocks in each case are located on each side, that in the rows (2) the vault stones (6,7) are mixed with each other or together with the rectangular stones (8) so that all the outermost standardized foundation stones (4) of the rows (2) have a support bevel (9) with a uniform slope. Lining according to Claim 1, characterized in that the support stones (5) have the shape of an oblique rectangular triangle. Lining according to Claim 1, characterized in that the support stones (5) have the shape of a one-sided oblique parallelepiped. Lining according to one of Claims 1 to 3, characterized in that the support stones (5) are divided into individual stones (5) of similar shape for weight reasons. Lining according to one of Claims 1 to 4, with two superimposed base layers, the base stones of each base layer being in parallel, very slightly stepped rows running in groups horizontally at right angles to each other, characterized in that the two base layers (14, 15) ) the overlapping rows (2) are shifted 60 ° relative to each other.