Measuring thermal expansion and the thermal crown of rolls

    公开(公告)号:US10799926B2

    公开(公告)日:2020-10-13

    申请号:US16000045

    申请日:2018-06-05

    申请人: NOVELIS INC.

    摘要: Systems and methods for measuring the thermal crown of rolls in-situ (e.g., at high temperature) either inside or outside the rolling mill can include sensors that measure propagation times of mechanical waves through the rolls. In some embodiments, one or more sensors are used to measure the propagation times of ultrasonic waves traveling inside the roll and normal to the roll's axis. These measurements can be taken when the roll is still hot and can be used to determine in real-time the thermal expansion at various points along the roll.

    ADJUSTABLE KILN FLIGHT FOR ROTARY KILN DECOATER AND ASSOCIATED METHOD

    公开(公告)号:US20200049407A1

    公开(公告)日:2020-02-13

    申请号:US16532822

    申请日:2019-08-06

    申请人: Novelis Inc.

    IPC分类号: F27B7/18 F27B7/16

    摘要: Disclosed are adjustable kiln flights for rotary kilns and associated methods. The kiln flight includes a base configured to be secured to a rotary kiln surface of a rotary kiln. In some aspects, the kiln flight includes a flight body rotatably supported on the base such that an angular orientation of the flight body is adjustable. In various examples, the kiln flight includes a height adjuster movably supported relative to the base such that a height of the kiln flight is adjustable. A method of controlling a rotary kiln with the adjustable kiln flight includes supporting a kiln flight on a base that is secured to an inner kiln surface of a rotary kiln, and adjusting at least one of the angular orientation of the kiln flight or the height of the kiln flight.