DE7031431U - FIRE-RESISTANT BLOCK AS SHEATHING ELEMENT FOR OVEN SUPPORT LINES. - Google Patents

Description

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MORGAN REFRACTORIES LIMITED, Liverpool Road, K3ston, Wirral, Cheshire, England

Refractory block as a cladding element for furnace support members

The innovation relates to refractory cladding for stoves and creates an improved refractory Block for use as a sheathing element for Protection of metal parts, such as B. pipe supports for material used in an oven for treatment, against intense heat.

In a known embodiment, a water-cooled tubular furnace support, such as. B. a slide rail for steel plates to be heated or a support tube for such a slide rail, with a fire-proof casing provided, which consists of an inner layer of resiliently deformable refractory fiber material and an outer layer of interlocking refractory blocks with interlocking integral ones

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Connecting parts commits, with the inner layer through the outer layer held together in a roughly flexible manner becomes and through the counter pressure the interlocking Connecting parts of the refractory blocks of the external

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^Gem: eat the innovation is a refractory block for producing a refractory covering for a furnace support member using equal blocks, the block being fixedly shaped connecting parts having to engage in complementary parts of the same blocks, characterized in that the BIock is H-shaped and the Between its legs have a width between its legs which is at least equal to the width of the block plus sufficient clearance so that each intermediate space can collectively accommodate one leg of each of two adjacent equal legs, in order to intervene in this lateral separation.

The engagement against lateral separation prevents relative displacement of an array of blocks from their common plane or, in the special case of a cylindrical casing, the radial displacement,

The outer layer of a refractory cladding K. can be formed from such Η-blocks, which are shown in U-nfangsrings are arranged, the blocks of adjacent rings are offset relative to each other and longitudinally interlock with adjacent legs of adjacent blocks in a ring which are in opposite directions Recesses of blocks in another ring are arranged together.

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Preferably each block has cylindrical inner and outer surfaces so that it has a cylindrical segment for making a smooth cylindrical shell but the blocks can also be flat or beveled

have inclined sheaths, in particular with large dimensions.

The shape of the legs of the block can be interlocked also tongues on the inner surfaces of a pair of legs running across a space between the H-shape, and have complementary grooves in the inner surfaces of the other pair of legs.

In addition, the inner surfaces of the pairs of legs preferably run into their interstices train amm pn.

The innovation is described below with reference to a preferred embodiment in conjunction with the drawing explained. Show in it:

Fig. 1 is a perspective view of an H block for a casing of a furnace socket according to the innovation;

Fig. 2 is a top view of the block and

Fig. 3 is a side view of part of a casing constructed from such Η-blocks is on a cylindrical metal part of a furnace support a.

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The block shown is a cylindrical segment with cylindrical inner and outer surfaces 1 and 2 and has a-shape with a pair of legs 3, which with Tongues 4 on their inner surfaces? are trained, the converge in an intermediate T-a-by 6 while Another pair of legs 7 is formed with complementary grooves in surfaces 9, which in a space

10 converge into it.

As shown in Figure 3, the blocks can be staggered to form interlocking rings are joined together to form an outer layer which, under resilient radial pressure, forms an inner layer

11 made of refractory fiber material on a cylindrical metal part 12 of a furnace support, such. B. on one water-cooled tube. The? Ig. 3 shows the staggered arrangement of blocks in adjacent circumferential rings, such as it was mentioned above.

It will be understood that the actual dimensions and possibilities depend on the dimensions desired Blocks and that the additional leeway in the width of the spaces 6 and 10 only needs to be so large that it allows easy nesting of blocks made possible by relative sliding in the longitudinal direction.

A general rule of the proper Elock dimensions is that for a cylinder segment block, as shown, the legs with the cylinder axis each enclose an angle of about 30 °, the spaces then similarly an angle of about 60 ° include, the inclination of the inner surfaces of the legs have a ratio of 1: 8 for each surface and the additional Clearance in the width of the gaps twice a required sliding clearance of about 1.59 aim between should have opposing interlocking surfaces,

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Claims (4)

Protection claims: 1. Refractory block for the manufacturer »a fire ⁺ (i,; en sheathing for a furnace support member using the same blocks, the block having integral connecting parts for engaging in complementary parts of the same blocks, characterized in that the block is H-shaped is unu the gaps (6, 10) between its legs (3 or 7) have a width which is at least half the width of the block plus sufficient clearance so that each gap (6 or 10) has a leg (3 or 7) can accommodate each of two adjacent blocks of the same type in order to intervene in these against lateral separation. 2. Refractory block according to claim 1, characterized in that the block has cylindrical inner and outer surfaces (1, 2). 3. Refractory block according to claim 1 or 2, characterized in that the block tongues (4) to the Inner surfaces of a pair of legs (3) and complementary grooves (8) on the inner surfaces of the other pair of Has legs (7). 4. Refractory block according to claim 1, 2 or 3, characterized in that the inner surfaces of the pairs of legs (3 or 7) of the block converge into their spaces (6, 10). 703143119.11.70