DE7424160U - Refractory block for making a refractory casing - Google Patents

Description

PLIBRICO Company GmbH, Düsseldorf

Refractory block for making,
a refractory casing

The innovation concerns a refractory block tin manufacture a refractory casing for the sliding and / or support tubes of a walking beam furnace or the like. under Use of the same blocks, whereby the block has a smooth inner surface adapted to the sliding or support tubes, as well as end faces running parallel to one another and radially to the center of the sliding and supporting tubes having extending side surfaces, wherein the end surfaces with cooperating tongue and groove Depressions or elevations are provided

Such blocks are used as prefabricated components for sheathing pipes in order to facilitate assembly and improve the ability to repair.

It is known (DT-OS 1 558 59 ² I-) to push such prefabricated components onto supporting tubes and to clamp them elastically in the axial direction.

Mechanically acting devices are in industrial furnace construction very vulnerable due to the high temperatures present there and therefore only have a limited one Lifespan.

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The innovation is based on the task of creating a self-supporting refractory block and in particular on mechanically acting devices as well as on support members attached to the tubes to renounce.

This object is achieved in that the tongue and groove-like depressions or elevations on the end faces are radial to the center of the sliding and supporting tubes run, and that the side surfaces also with cooperating tongue-and-groove-like, axially the sliding and supporting tubes are provided with indentations or elevations

In order to avoid thermal stresses in the tongue and groove-like depressions or elevations, according to the invention further proposed that the tongue-and-groove Depressions or elevations on the end and side surfaces are semicircular.

So that the blörke in the individual levels offset to each other can be arranged, there are two radially extending depressions on the end faces or elevations provided which have a distance from the side surfaces that is half as large as that

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mutual distance between the two wells bsw. Increases.

An embodiment of the innovation is in the drawing and is described in more detail in »the following.

Slide and support tubes belong in push or walking beam furnaces to a water- or steam-cooled pipe system on which, for example, steel blocks are supported or be transported.

The refractory block 2 is used for sheathing a vertically extending support tube 1, wherein in A plurality of such blocks 2 can be used on one level. In the exemplary embodiment are in a Level four blocks 2. In the individual levels "A" and "B" (and of course also in all following levels) dis individual blocks 2 are arranged offset to one another ·

The block 2 is designed as part of a ring, with its inner surface 3 corresponding to the pipe 1 in the shape of a circular ring is. The upper end face 4 and the lower end face 5 run parallel to one another and lie perpendicular to the axis of the pipe 1. The left (6)

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and the right side surface 7 run radially towards the center of the tube 1.

The upper end face 4 has two radially extending, semicircular elevations 8 and the lower end face 5 has two radially extending, semicircular Wells 9 on. The size and arrangement of the depressions and elevations 8.9 are such that both can interlock. The distance "b" of the wells or · Elevations 9 »8 from the side surfaces 6.7 is half the size of the mutual decency "a". This ensures that the blocks 2 in the individual Levels "A" and "B" can be arranged offset to one another. The interacting wells or elevations 9, 8 prevent the blocks 2 from being displaced in the circumferential direction.

The left side surface 6 is with a semicircular recess 11 and the right side surface 7 is provided with a corresponding elevation 10. These interacting depressions and elevations 11, 10 prevent a Vex ^ pushing the blocks 2 in the radial direction.

When assembling such a refractory casing, the individual blocks 2 of the plane are first

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• "A" and then in a staggered manner the blocks 2 of level ¹¹ B ". All other levels are assembled in the same sequence.

Due to the modernization of the blocks 2 and due to the offset arrangement option, the individual blocks 2 support each other and need them no additional fasteners

- Protection claims -

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Claims (5)

SOHUTZ CLAIMS • 1) Refractory block for producing a refractory casing for the sliding and / or support tubes of a walking beam furnace or the like. using the same blocks, the block having a smooth inner surface adapted to the sliding or support tubes, as well as end faces running parallel to one another and side faces extending radially to the center of the sliding or support tubes, the end faces with interacting tongue and groove-like depressions or elevations are provided
characterized in that the tongue and groove-like depressions (9) or elevations (8) on the end faces (4-, 5) run radially to the center of the sliding and support tubes (1), and that the side surfaces (6, 7) are also provided with interacting tongue and groove-like depressions (11) or elevations (10) extending axially to the sliding and supporting tubes (1). 2) Refractory block according to claim 1, characterized in that that the full tongue and groove-like depressions (9, 11) or elevations (8, 10) on the front and side surfaces (4.5 or 6.7) are semicircular. - 742416024.10.74 5) refractory block according to claims 1 and 2, characterized in, that at the end faces (& and 5) ^ two radially extending depressions (9) ″ or elevations (8) are provided, which from the side surfaces (6, 7) a Have a distance (b) that is half as large as the mutual distance (a) between the two depressions (9) or increases (8). 742416G 10/24/74