F27D1/00

HOME APPLIANCE CAVITY
20210160972 · 2021-05-27 ·

A home appliance, in particular a home cooking appliance, includes a home appliance cavity used as a cooking cavity. The home appliance cavity includes a substrate that is a fibrous matrix and an inorganic resin that is thermally resistant. In certain examples, the home appliance cavity is a single unit construction, eliminating assembly seams. Also described herein are methods of making the home appliance cavity.

System and method for repairing a coke oven

A system and method for repairing a coke oven having an oven chamber formed from ceramic bricks. A representative system includes a insulated enclosure insertable into the oven chamber and includes removable insulated panels that define an interior area for workers to work in. The insulated enclosure is movable between an expanded configuration and a compact configuration and moving the enclosure to the expanded configuration will decrease the distance between the insulated enclosure and the walls of the oven chamber. Removing the panels exposes the ceramic bricks and allows workers within the interior area to access and the bricks and repair the oven chamber while the oven chamber is still hot. A loading apparatus lifts and inserts the insulated enclosure into the oven chamber. The insulated enclosure can be coupled to additional insulated enclosures to form an elongated interior area.

Metallurgical vessel lining with enclosed metal layer

A lining structure for a refractory vessel contains a first layer containing refractory material; a second layer, in communication with and parallel to the first layer, containing a metal layer or component; and a third layer, in communication with and parallel to the second layer, containing refractory material. The metal component in the second layer contains filled transverse passages, between the surface of the second layer in contact with the first layer and the surface of the second layer in contact with the third layer, producing support structures to maintain the structural integrity of the refractory vessel in use.

CHROMIA-BASED BRICK
20210101835 · 2021-04-08 · ·

A chromia-based brick, having chromia as a main component, includes: 70 to 95 mass % of Cr.sub.2O.sub.3; 0.5 to 15 mass % of ZrO.sub.2; 0.4 to 4.0 mass % of P.sub.2O.sub.5 derived from phosphate added as raw material; 10 or lower mass % of Al.sub.2O.sub.3; and a sintering aid component and unavoidable components.

HIGH-ZIRCONIA ELECTRO-FUSED CAST REFRACTORY MATERIAL

A high zirconia electrically-fused cast refractory has a chemical composition including more than 95% by mass and 98% by mass or less of ZrO.sub.2, 0.1 to 1.5% by mass of Al.sub.2O.sub.3, 1 to 2.5% by mass of SiO.sub.2, 0 to 0.1% by mass of K.sub.2O, 0.01 to 0.3% by mass of Na.sub.2O and K.sub.2O in total, 0.02 to 0.4% by mass of B.sub.2O.sub.3, 0.01 to 0.6% by mass of BaO, 0.01 to 0.4% by mass of SnO.sub.2, 0.3% by mass or less of Fe.sub.2O.sub.3 and TiO.sub.2 in total, and 0.04% by mass or less of P.sub.2O.sub.5, wherein the contents of B.sub.2O.sub.3 and SnO.sub.2 satisfy the following Formulas (1) and (2):


0.20(SnO.sub.2/B.sub.2O.sub.3)<6.5(1)


0.14% by mass(C.sub.SnO2+C.sub.B2O3/2)0.55% by mass(2):

In Formula (2), C.sub.SnO2 represents the content of SnO.sub.2, and C.sub.B2O3 represents the content of B.sub.2O.sub.3, expressed in % by mass in the refractory.

Stacked slab coke oven corbel structures
10927302 · 2021-02-23 · ·

Coke oven corbel structures are provided with a multiple number of stacked refractory slabs defining a corresponding multiple number of tiers of the corbel structure. The multiple number of stacked refractory slabs define a pair of substantially vertically oriented central fuel gas passageways and pairs of combustion air passageways laterally of a respective one of the central fuel gas passageways. A plurality of vertically stacked fuel gas blocks each defining a central fuel gas conduit may be positioned within each of the central fuel gas passageways.

Water pipe collection box and stave cooler support
10954574 · 2021-03-23 ·

A water pipe collection box and stave support for a cast copper stave cooler body panel that has disposed within it a circuit of water pipes with a number of loops each with an inlet end and an outlet end, and all such inlet ends and outlet ends clustered together in a single group that exits a backside of the copper stave cooler body panel. A cast copper stave cooler body panel that has disposed within a circuit of water pipes with a number of loops each with an inlet end and an outlet end, and all such inlet ends and outlet ends clustered together in a single group that exits a backside of the copper stave cooler body panel. A blast furnace having stave cooler body panels variously profiled to fit inside, and where each has disposed within it a circuit of water pipes with a number of loops each with an inlet end and an outlet end, and all such inlet ends and outlet ends are clustered together in a single group that exits a backside of each copper stave cooler body panel.

Mounting hardware for refractory module
10962286 · 2021-03-30 · ·

Mounting hardware for mounting an insulation module on a furnace wall. The hardware comprises a mounting bracket embedded within the module. The bracket has a plurality of flexible tabs, each tab having a fixed end and a free end. The free ends of the tabs are arranged about a central point and are movable (flexible) relative to the fixed ends. A mounting stud is provided having a fixed end attachable to an inner surface of a furnace wall and a free end. The stud extends from the inner surface, and the stud has an annular groove adjacent the fixed end. The stud is dimensioned to extend through the mounting bracket between the free ends of the tabs and to cause the tabs to flex as the bracket moves along the stud from the free end towards the fixed end, wherein the tabs snap and lock into the annular groove when the bracket reaches the annular groove.

SYSTEM AND METHOD FOR REPAIRING A COKE OVEN

A system and method for repairing a coke oven having an oven chamber formed from ceramic bricks. A representative system includes a insulated enclosure insertable into the oven chamber and includes removable insulated panels that define an interior area for workers to work in. The insulated enclosure is movable between an expanded configuration and a compact configuration and moving the enclosure to the expanded configuration will decrease the distance between the insulated enclosure and the walls of the oven chamber. Removing the panels exposes the ceramic bricks and allows workers within the interior area to access and the bricks and repair the oven chamber while the oven chamber is still hot. A loading apparatus lifts and inserts the insulated enclosure into the oven chamber. The insulated enclosure can be coupled to additional insulated enclosures to form an elongated interior area.

Refractory anchor
10907899 · 2021-02-02 ·

A monolithic refractory anchor which has a bridge portion and first and second V-shaped end portions attached to opposite ends of the bridge portion. The anchor has a pedestal located generally centrally of the anchor which extends below the bottom surfaces of the wing portions of the V-shaped sections, the pedestal forming a single welding attachment point for attachment, preferably by stud welding, to a metal substrate.