Method and apparatus for spray coating of refractory material to
refractory construction
    1.
    发明授权
    Method and apparatus for spray coating of refractory material to refractory construction 失效
    耐火材料喷涂施工方法及装置

    公开(公告)号:US5061527A

    公开(公告)日:1991-10-29

    申请号:US632638

    申请日:1990-12-26

    摘要: Spray coating is performed utilizing a mixture of refractory material and a combustionable metal powder. The size of the particle of the metal in the mixture is selected so that the particle size is large enough to be treated safely and is small enough to be transported by means of a gas flow. As a carrier gas for carrying the mixture, a non-combustionable gas or fuel gas is used. A fuel gas and a combustion-assisting gas are discharged toward the section to be treated on the surface for directing a combustioning frame. The refractor material with the carrier gas is discharged into the frame established by the fuel gas and the combustion-assisting gas. The average size of the metal particle to be used in the spray coating is limited to be greater than 50 .mu.m. By enlarging the particle size of the metal, combustion of the metal particle becomes difficult. Combustion of such large particle size metal can be assisted by discharging the combustion-assisting gas together with the fuel gas. This compensates combustion efficiency to be dropped by utilizing the larger particle size metal.

    摘要翻译: 具有喷枪(10)的装置,其具有用于耐火结构的喷涂的两个喷嘴(12,14)。 使用耐火材料和可燃金属粉末的混合物进行喷涂。 选择混合物中金属颗粒的尺寸使得颗粒尺寸足够大以便安全地处理并且足够小以通过气流传输。 作为用于承载混合物的载气,使用不可燃气体或燃料气体。 燃料气体和助燃气体在用于引导燃烧框架的表面上朝向要处理的区域排出。 具有载气的折射材料被排出到由燃料气体和助燃气体构成的框架中。 这通过利用较大的粒度金属来补偿燃烧效率降低。

    Flame gunning of refractory linings
    2.
    发明授权
    Flame gunning of refractory linings 失效
    耐火内衬的火焰喷枪

    公开(公告)号:US4432533A

    公开(公告)日:1984-02-21

    申请号:US364414

    申请日:1982-04-01

    摘要: A method of repairing a refractory lining of a vessel lined with refractory by flame gunning process, in which a patching material consisting of refractory particles and carbonaceous fuel powder is flame-gunned together with an oxygen containing gas to fuse or semi-fuse the refractory particles in a region surrounded by high-temperature flame and struck against the surface of the refractory lining to produce a deposit layer of the refractory particles, is disclosed. In this method, a patching material having a higher mixing ratio of the fuel powder or only the fuel powder is flame-gunned at an initial stage of the repairing and subsequently patching materials, in which the mixing ratio of the fuel powder is lowered stepwise, are flame-gunned in order with the progress of the repairing, during which a blow rate of the oxygen containing gas is controlled in accordance with the change of the mixing ratio of the fuel powder in the patching material.

    摘要翻译: 一种通过火焰喷涂方法修复耐火材料衬里耐火衬里的方法,其中将由耐火颗粒和含碳燃料粉末组成的修补材料与含氧气体一起火焰喷射以熔化或半熔融耐火颗粒 在由高温火焰包围并撞击耐火衬里表面以产生耐火颗粒的沉积层的区域中。 在该方法中,在燃料粉末的混合比逐步降低的修理初期和随后的修补材料中,燃料粉末或仅燃料粉末的混合比高的修补材料被火焰喷射, 按照修补进度的顺序进行火焰喷射,根据修补材料中的燃料粉末的混合比的变化,控制含氧气体的吹入速率。

    Method of controlling continuous casting equipment
    3.
    发明授权
    Method of controlling continuous casting equipment 失效
    控制连铸设备的方法

    公开(公告)号:US4553604A

    公开(公告)日:1985-11-19

    申请号:US537403

    申请日:1983-08-31

    IPC分类号: B22D11/16 B22D11/20 B22D11/22

    摘要: Control method for preventing a breakout or/and a crack of the slab of continuous casting equipment. Heat flux waveforms or heat flux values commensurate to extracted heat values at various positions of a mold are measured by means of thin plate type surface heat flux meters (14, 14x, 14y, 14z) provided at various positions on side shell plate (11, 11c) of the mold (10). When an abnormality or a deviation from a target value is detected, pouring rate is changed, scope of supply, brands and the like of mold powder are controlled, or taper value of short sides of the mold is controlled, so that a breakout or/and a crack of the slab is prevented.

    摘要翻译: 用于防止连续铸造设备的板坯的断裂和/或裂纹的控制方法。 通过设置在侧壳板(11,14)上的各个位置处的薄板型表面热通量计(14,14x,14y,14z)测量与模具的各个位置处的提取的热值相当的热通量波形或热通量值, 11c)。 当检测到异常或与目标值的偏差时,控制浇注速度,供应范围,模具粉末的品牌等,或者控制模具短边的锥度值,从而突破或/ 并且防止了板的裂纹。