Adding to silica refractory structures
AssigneeGlaverbel
InventorsPierre Robyn, Pierre Deschepper
Life of this patent
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Abstract
A silica refractory structure may be added to, e.g. by way of repair, in a working environment at a temperature in excess of 600.degree. C. Such addition is made using one or more vitreous silica bricks bonded into position by projecting a mixture composed of finely divided particles of exothermically oxidizable material, e.g. Si optionally with Al and particles of silica, and burning the mixture during its projection to form a coherent refractory mass which bonds the addition together and to the original structure.
Claims8
A method of adding to a silica refractory structure while the structure is maintained at a temperature in excess of 600.degree. C., comprising:
- providing a mixture of particles of exothermically oxidisable material and particles of silica incombustible refractory material;
- placing a vitreous silica brick, which has a temperature below that required to transform the silica brick from the vitreous to the crystalline state, into a desired position relative to the structure;
- and
- bonding the vitreous silica brick to the structure by projecting the mixture toward the position of the brick and burning the mixture during its projection to form a coherent refractory mass which effects such bonding.
A method of adding to a silica refractory structure in a working environment at a temperature in excess of 600.degree. C., comprising:
- providing a mixture of particles of exothermically oxidisable material and particles of silica incombustible refractory material;
- providing a vitreous silica brick with a face having chamfered edges;
- placing the vitreous silica brick into a desired position relative to the structure so that the face with the chamfered edges is exposed;
- bonding the vitreous silica brick to the structure by projecting the mixture toward said exposed face and burning the mixture during its projection to form a coherent refractory mass which effects such bonding.
Dependencies are inferred from the claim text.