Coke ovens having monolith component construction

    公开(公告)号:US11795400B2

    公开(公告)日:2023-10-24

    申请号:US17190720

    申请日:2021-03-03

    CPC classification number: C10B29/02 C10B5/06 C10B15/02 C10B29/04

    Abstract: The present technology is generally directed to horizontal heat recovery and non-heat recovery coke ovens having monolith components. In some embodiments, an HHR coke oven includes a monolith component that spans the width of the oven between opposing oven sidewalls. The monolith expands upon heating and contracts upon cooling as a single structure. In further embodiments, the monolith component comprises a thermally-volume-stable material. The monolith component may be a crown, a wall, a floor, a sole flue or combination of some or all of the oven components to create a monolith structure. In further embodiments, the component is formed as several monolith segments spanning between supports such as oven sidewalls. The monolith component and thermally-volume-stable features can be used in combination or alone. These designs can allow the oven to be turned down below traditionally feasible temperatures while maintaining the structural integrity of the oven.

    FOUNDRY COKE PRODUCTS, AND ASSOCIATED SYSTEMS AND METHODS

    公开(公告)号:US20220356410A1

    公开(公告)日:2022-11-10

    申请号:US17736960

    申请日:2022-05-04

    Abstract: Coke products configured to be combusted in a cupola furnace are disclosed herein. The coke products can include foundry coke products having a hydraulic diameter of at least 3.5″, egg coke products having a hydraulic diameter of 1.5-3.5″, and breeze coke products having a hydraulic diameter of 0.5-1.5″. Individual foundry coke products can comprise an oblong shape including a length of at least 4″, a width of at least 1.5″, and a length:width ratio of at least 2.0. In some embodiments, the length of individual coke products can be between 6-12″ and the width can be at least 2.5″. Additionally, the foundry coke products can have a Coke Reactivity Index (CRI) of at least 40%. The coke products can be made from a blend of coal and breeze coke products in horizontal ovens, such as horizontal heat recovery or horizontal non-recovery ovens.

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