FI72169C - ELDFAST VAEGG AV STEN. - Google Patents

Description

721 69

The present invention relates to a refractory wall, which is preferably formed of rectangular flow-locking elements, in particular for an oven.

Adjacent wall elements of furnaces and other structures often become heated to widely varying temperatures, with correspondingly varying thermal expansions. As a result, the 10 most commonly used mortar joints between elements crack.

Especially in furnaces built of soapstone elements, attempts have been made to connect the elements to each other by means of pins and holes made in the elements.

15 However, the precise alignment of the holes has proved difficult and it has also been difficult to make the seam tight. The seams between the elements must be tight to create the necessary traction.

The object of the invention is to provide a new wall which eliminates the above-mentioned drawbacks. The refractory wall according to the invention is mainly characterized in that at least one of the horizontal and vertical joints of each element to the adjacent elements comprises grooves formed on the opposing surfaces of the elements, preferably aligned by milling, and has a strip-shaped joint to provide a structure capable of adapting to heat movements caused by high temperatures and retaining its tightness.

Thus, in the refractory wall according to the invention, a kind of joint seam is used between the elements. The elements can "live" as the adhesive springs and the seam thus remains tight at all times.

The invention will now be described with reference to an exemplary embodiment shown in the accompanying drawing 2,721 69.

Figure 1 shows a perspective view of a baking oven whose walls are constructed in accordance with the invention.

Fig. 2 shows a section along the line 5 II-II in Fig. 1.

The baking oven shown in Fig. 1 is constructed of rectangular soapstone elements, four of which are indicated by reference numerals 1, 2, 4 and 5. The horizontal seam between elements 1 and 2 is indicated by reference number 3 and the horizontal seam between roads 4 and 5 by reference number 6.

The structure of these seams is shown in detail in Figure 2. Aligning grooves 7 and 8 are formed on the opposite surfaces of the elements 1 and 2, for example by milling. A connecting element 9 between the elements extends into each groove 7 and 8, which may preferably be a metal strip. Before installing the joint, an adhesive is poured into the grooves 7 and 8 and preferably also on the opposite surfaces of the elements, which hardens transversely in the transverse direction and seals the joint, while allowing mutual longitudinal movements due to different thermal expansions of the elements 1 and 2. Preferably, the vertical seams between the elements are also similar, but as stated earlier, conventional mortar joints can also be considered for these.

The furnace or other wall structures can be built quickly and easily using the elements according to the invention, for example the grooves of the elements can be milled into future joint surfaces in advance, into a long stone element before it is cut into actual building elements, for example 1 and 2.

Claims (2)

3 72169 A refractory wall, preferably formed of rectangular soapstone elements (1, 2, 4, 5), 5 in particular for a furnace, characterized in that at least one of the horizontal and vertical joints of each element to adjacent elements comprises opposing surfaces of the elements (1, 2) preferably milled, aligned grooves (7, 8) and a strip-shaped connecting member (9) extending into each groove, and that glue or the like is molded into the grooves (7, 8) to provide a structure capable of adapting to heat movements and maintaining its tightness . A refractory wall according to claim 1, characterized in that an adhesive or the like is further applied over at least a substantial part of the opposing joint surfaces of the elements.