Saint-gobain Centre De Recherches Et D'etudes Europeen

Saint-gobain Centre De Recherches

Laurie San-Miguel

Christian Claude His

Thibault Champion

Fabiano Rodrigues

Sébastien Pinson

Benedikt Fischer

Keith Mann

Denis Pfuetze

Yannick Millot

Refractory tile for protecting a wall of energy recovery tubes. A hot face of the tile is to be exposed to the interior of the furnace. A cold face, opposite the hot face, defines: a groove extending over the entire length of the tile and to receive one the tubes, and a fastening receptacle configured to receive a retaining member to immobilize the tile with respect to the tube. The tile has, in a transverse section plane, at least at each position between the position of the groove and the position of the fastening receptacle, a non-zero material thickness. The thickness is measured between the transverse profile of the hot face and a straight segment, which is referred to as the base and links the ends of the transverse profile of the hot face. The positions are determined along the base.

Refractory tile

A sintered ceramic foam that has a total porosity of greater than 60% by volume and the following phase composition, in mass percent based on the crystallized phases: 25 to 55% mullite, 20 to 65% corundum, 10 to 40% zirconia, mullite, corundum and zirconia together representing more than 80% of the mass of the crystallized phases. Also, a furnace that has a thermal insulator such ceramic foam.

Ceramic foam

A sintered refractory product having the form of a block and consisting of a granulate formed by all the grains having a size larger than 100 &#x3bc;m, referred to as 'coarse grains', and a matrix binding the coarse grains and consisting of the grains having a size smaller than or equal to 100 &#x3bc;m, the granulate representing between 45% and 90% by mass of the product, the product having a composition such that, in a mass percentage based on the oxides: AlO&#x3e;80%, SiO&#x3c;15%, NaO&#x3c;0.15%, FeO&#x3c;0.05%, CaO&#x3c;0.1%, the other oxides forming the remainder up to 100%, and the NaO content in the matrix being greater than 0.010%, in a mass percentage based on the mass of the product.

Product having a high alumina content

Growing community of inventors

Althen-des-Paluds, France

Laurie San-Miguel