Method for protecting an inner wall of a shaft furnace

    公开(公告)号:US12235047B2

    公开(公告)日:2025-02-25

    申请号:US17299182

    申请日:2019-12-13

    Abstract: A method for protecting an inner wall (12) of a shaft furnace, the method comprising the steps of: providing at least one injection device (28) through the inner wall (12) of the shaft furnace, the injection device (28) being configured to inject protective material into the shaft furnace; and injecting on demand the protective material into the shaft furnace through the injection device (28), in such a manner that the protective material builds up to form a protection wall between the interior of the shaft furnace and the furnace wall (12).

    BLOCK STRUCTURE, CONTAINER AND METHOD FOR CONSTRUCTING BLOCK STRUCTURE

    公开(公告)号:US20200063224A1

    公开(公告)日:2020-02-27

    申请号:US16466700

    申请日:2016-12-19

    Applicant: POSCO

    Inventor: Jung Il KIM

    Abstract: Provided is a block structure that may uniformly distribute a force applied by a charging material, a container including the block structure, and a construction method applied thereto. The block structure includes: a main body having one face extending in one direction and another direction perpendicular to one direction; and a plurality of blocks coupled to one face of the main body and being in contact with each other. Further, an engaged groove and an engaging protrusion are respectively formed on both opposed faces of each of the blocks, the opposed faces facing away each other in at least one of one direction or another direction.

    Furnace bricks, coolers, and shells/bindings operating in systemic balance

    公开(公告)号:US10533802B2

    公开(公告)日:2020-01-14

    申请号:US16443474

    申请日:2019-06-17

    Inventor: Allan J. MacRae

    Abstract: Many substantially identical refractory bricks are assembled into completed horizontal ring rows neatly nested into laterally curved copper stave coolers surrounding the ring. Each brick “locks” into horizontal channels between pairs of parallel horizontal protruding ribs on the hot faces of the stave coolers. Every stave cooler is provisioned with a full covering of the refractory bricks after the stave cooler is mounted inside a corresponding steel containment shell. None of the refractory bricks are permitted to be finished bridging between adjacent stave coolers in the same horizontal row. Each brick is installed in their respective stave coolers with crushable or deformable mortar filling the channels. Each brick hooks a “toe” just under and into an upper of the pair of horizontal ribs, and then rotates in down with favorably oriented and directed earth's gravity to stay in place at least until a next upper row of bricks in a superior horizontal ring “lock” them in a second way.

    Fired precast block
    6.
    发明授权

    公开(公告)号:US10281212B2

    公开(公告)日:2019-05-07

    申请号:US15161629

    申请日:2016-05-23

    Abstract: A fired precast block prevents itself from dropping off early due to corrosion and increases service life of a blast furnace runner, etc. when used in a very vulnerable portion of the blast furnace runner, etc., and can be produced at low costs. The fired precast block has an upper surface to contact molten metal or slag, a lower surface opposing the upper surface, and a plurality of side surface. The fired precast block is used by being embedded in a castable in such a manner that the upper surface is exposed from the castable and the lower surface and the plurality of side surfaces contact the castable. Each side surface of at least one opposing pair of side surfaces includes a planar portion and an uneven portion. The uneven portion has at least one groove-shaped concave portion.

    Stave with external manifold
    8.
    发明授权

    公开(公告)号:US10222124B2

    公开(公告)日:2019-03-05

    申请号:US14765281

    申请日:2014-02-03

    Inventor: Todd G. Smith

    Abstract: A stave comprising an outer housing, an inner pipe circuit comprising individual pipes housed within the outer housing, wherein the individual pipes each has an inlet end and an outlet end and wherein each pipe may or may not be mechanically connected to another pipe, and a manifold, integral with or disposed on or in the housing; wherein the inlet and/or outlet ends of each individual pipe is disposed in or housed by the manifold. The manifold may be made of carbon steel while the housing may be made of copper. Each of the inlet and outlet ends of each individual pipe may be surrounded in part by cast copper within a housing of the manifold.

    Apparatus and method for frame and brick constructions
    10.
    发明授权
    Apparatus and method for frame and brick constructions 有权
    框架和砖结构的装置和方法

    公开(公告)号:US09102990B2

    公开(公告)日:2015-08-11

    申请号:US13147929

    申请日:2010-07-08

    Applicant: Todd G. Smith

    Inventor: Todd G. Smith

    Abstract: A frame/brick and/or a stave/brick construction, having a frame having a plurality of ribs and a plurality of channels, wherein a front face of the frame defines a first opening into each of the channels, and a plurality of bricks wherein each brick is insertable into one of the plurality of channels via its first opening to a position, upon rotation of the brick, partially disposed in the one channel such that one or more portions of the brick at least partially engage one or more surfaces of the one channel and/or of a first rib of the plurality of ribs whereby the brick is locked against removal from the one channel through its first opening via linear movement without first being rotated.

    Abstract translation: 一种具有多个肋和多个通道的框架/砖和/或板/砖结构,其中框架的前表面限定到每个通道中的第一开口,以及多个砖,其中 每个砖都可以通过其第一开口被插入到多个通道中的一个中,一旦砖的旋转就部分地设置在一个通道中,使得砖的一个或多个部分至少部分地接合在一个或多个表面上 一个通道和/或多个肋中的第一肋,其中砖被锁定以防止通过其第一开口通过其第一开口从第一开口移除而不首先被旋转。

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