Device for determining the profile of the charging surface of a shaft
furnace
    21.
    发明授权
    Device for determining the profile of the charging surface of a shaft furnace 失效
    用于确定竖炉的充电表面的轮廓的装置

    公开(公告)号:US4574494A

    公开(公告)日:1986-03-11

    申请号:US648543

    申请日:1984-09-07

    摘要: An apparatus for determining the charging profile on the charging surface of a shaft furnace is presented. The apparatus consists of a plurality of level probes, each probe including a weight which is suspended vertically above the charging surface on the first end of a cable which projects from a supporting arm. The second end of each of these cables, in turn, is connected outside the furnace to respective winding drums, each drum being controlled by a driving device which raises or lowers the probe connected to the drum. This invention also consists of a monitoring device for measuring the unwinding of the cable from the drum and the descent of the probe onto the charging surface as well as a method of replacing an individual probe and its cable from outside the shaft furnace.

    摘要翻译: 提出了一种用于确定竖炉的充电表面上的充电曲线的装置。 该装置由多个水平探针组成,每个探针包括一个从支撑臂突出的电缆的第一端垂直悬挂在充电表面上方的重物。 这些电缆中的每一个的第二端又连接在炉外部到相应的卷绕鼓上,每个滚筒由驱动装置控制,驱动装置使连接到滚筒的探头升高或降低。 本发明还包括一个监测装置,用于测量电缆从滚筒的展开以及探头到充电表面的下降以及从竖炉外部更换单个探针及其电缆的方法。

    Apparatus for the direct reduction of iron in a shaft furnace using gas
from coal
    23.
    发明授权
    Apparatus for the direct reduction of iron in a shaft furnace using gas from coal 失效
    用于使用煤气的立式炉中的铁的直接还原的装置

    公开(公告)号:US4365789A

    公开(公告)日:1982-12-28

    申请号:US308700

    申请日:1981-10-05

    IPC分类号: C21B13/00 F27B1/28

    摘要: A method and apparatus for the direct reduction of iron in a shaft furnace using gas from the gasification of solid fossil fuel, such as coal, in which the fuel gas is desulfurized and upgraded in the shaft furnace and direct reduction of iron oxide is carried out in the same furnace. Clean export fuel can be produced by this method along with direct reduced iron. The apparatus includes means for controlling the temperature of the process gas entering the furnace.

    摘要翻译: 使用来自固体化石燃料(例如煤)的气体的气体直接还原铁的方法和装置,其中燃料气体在竖炉中脱硫和升级并直接还原氧化铁 在同一炉中 清洁出口燃料可以通过这种方法和直接还原铁生产。 该装置包括用于控制进入炉的工艺气体的温度的装置。

    Damage detection system and method of use

    公开(公告)号:US12025377B2

    公开(公告)日:2024-07-02

    申请号:US16482837

    申请日:2018-01-31

    申请人: IMERTECH SAS

    摘要: The present invention relates to damage detection systems for refractory linings for molten metal vessels, comprising an electrically conductive grid disposed underneath the surface of the refractory lining closest to a molten metal when in use, one or more electrically conductive electrodes disposed in contact with the molten metal when in use and an electrical power source, wherein the electrically conductive metallic grid and the one or more electrically conductive electrodes are electrically connected to each other, such as to form an open electrical circuit powered by the said electrical power source, and a detected closure of the said electrical circuit during normal use of the molten metal vessel indicates that the said refractory lining is damaged, or the presence of a molten metal during normal operation of the vessel closes the said electrical circuit in case the refractory lining is damaged. The present invention relates to a method for detecting damage in a refractory lining during use, and the use of a damage detection system according to the invention.

    Method and device for monitoring blast furnace state based on multi-modes fusion

    公开(公告)号:US11898212B1

    公开(公告)日:2024-02-13

    申请号:US18354602

    申请日:2023-07-18

    IPC分类号: C21B7/24 F27B1/28 G05B19/4155

    摘要: A method and device for blast furnace state monitoring based on multi-modes fusion. In the process of blast furnace state monitoring, the concept of sub-mode is introduced, and the method for pre-acquisition and multi-modes weighted fusion by sub-mode is proposed to monitor blast furnace state. After preprocessing the main parameter data of the blast furnace, several sub-modes of the blast furnace and their corresponding blast furnace state indication variable data are obtained by means of a mean shift clustering algorithm. Taking the real-time parameter data of the blast furnace as inputs, the Euclidean distance between the real-time parameter data of the blast furnace and each sub-mode is calculated, and the sub-modes are weighted and fused according to the distance, and the fusion result is the real-time blast furnace state, so as to realize the real-time state monitoring of the blast furnace in a smooth operation.

    METHOD AND DEVICE FOR PRODUCING AN EXPANDED GRANULATE

    公开(公告)号:US20200071229A1

    公开(公告)日:2020-03-05

    申请号:US16605614

    申请日:2017-04-18

    申请人: Binder + Co AG

    摘要: A method for producing an expanded granulate made of a sand grain-shaped mineral material uses a propellant. The material is transported along a transport path through multiple heating zones in a furnace shaft, heated to a critical temperature at which the surfaces of the sand grains plasticize, and the sand grains are expanded based on the propellant. The material is fed from the bottom together with an amount of air; the material is transported from the bottom to the top along the transport path by the air quantity which flows from the bottom to the top in the furnace shaft and the sand grains are expanded in the upper half of the transport path. The material is heated such that the material immediately prior to entering into the furnace shaft is at a material entry temperature lower than the critical temperature and higher than the ambient temperature.