Self-Extinguishing burning bar
    1.
    发明授权
    Self-Extinguishing burning bar 失效
    自熄燃烧棒

    公开(公告)号:US5888447A

    公开(公告)日:1999-03-30

    申请号:US814518

    申请日:1997-03-10

    CPC classification number: E21B7/146 B23K35/0216 B23K7/08

    Abstract: A metallic pipe may be used as a burning bar if the pipe contains wires. The wires are usually steel but may be combinations of steel wires, aluminum wires, magnesium wires and the like. To use the burning bar one end is heated to at least red hot condition. Oxygen is then pumped down the pipe and the pipe then produces a self-sustaining high temperature, high heat flame. A burning bar may be used for demolition and similar uses. In this improved burning bar, the wires within the pipe are arranged so that the wires do not extend the full length of the pipe. There is a portion of the pipe adjacent to the end of the pipe held by the operator which does not contain any wires. The pipe is thus self extinguishing at the point where the wires cease thereby providing safety to the operator and economic advantages.

    Abstract translation: 如果管道包含电线,则可以使用金属管作为燃烧棒。 电线通常是钢,但可以是钢丝,铝线,镁丝等的组合。 为了使用燃烧条,一端被加热到至少红热条件。 然后将氧气泵送到管道上,然后管道产生自维持的高温,高热焰。 燃烧酒吧可能用于拆除和类似用途。 在这种改进的燃烧棒中,管道内的电线被布置成使得电线不延伸管道的整个长度。 管道的一部分靠近操作者保持的不包含任何电线的管道的末端。 因此,管线在电线停止点自熄,从而为操作员提供安全性和经济优势。

    Sulphate agglomeration
    2.
    发明授权
    Sulphate agglomeration 失效
    硫酸盐聚集

    公开(公告)号:US5516976A

    公开(公告)日:1996-05-14

    申请号:US295056

    申请日:1994-08-26

    CPC classification number: C22B7/02 C22B1/16 C22B1/243 C22B1/245 Y02P10/212

    Abstract: A process for forming agglomerates of metallurgical dust containing metal sulphates for recycling to extractive processes includes adding lime particles and a small amount of water, forming a mixture and extruding the damp mixture and allowing the extruded agglomerates to become hard and shape retentive. The material agglomerated may be water soluble metal sulphate containing particles or mixtures of such particles with other value metal bearing waste or by-products of metallurgical processes. Optionally additional binding agents comprising cement and hydrocarbonaceous substances such as wax may be added to the mixture.

    Abstract translation: 用于形成含有金属硫酸盐的冶金粉尘的附聚物用于再循环至萃取过程的方法包括加入石灰颗粒和少量水,形成混合物并挤出湿混合物并使挤出的附聚物变硬并保持形状。 聚集的材料可以是含有水溶性金属硫酸盐的颗粒或这些颗粒的混合物与其它含有金属的废物或冶金方法的副产物。 任选地,可以将包含水泥和烃类物质如蜡的另外的粘合剂加入混合物中。

    Agglomerating by extrusion
    3.
    发明授权
    Agglomerating by extrusion 失效
    通过挤出聚集

    公开(公告)号:US5385602A

    公开(公告)日:1995-01-31

    申请号:US50790

    申请日:1993-04-22

    CPC classification number: C22B7/00 C22B1/243 C22B1/245 Y02P10/212

    Abstract: A process for agglomerating by extrusion, metallurgical by-products and waste products having small particle size, is described. A blend of metallurgical by-products, some of which contain silicates previously treated at high temperatures and thereby being capable of chemically and structurally binding water, optionally mixed with portland cement and/or slag cement, and containing water which has been added in amounts that the silicates and cement present can completely absorb and react with, is further mixed with a hydrocarbonaceous substance. The resulting mixture is subsequently agglomerated by extrusion. The extrudates obtained are shape retaining and sufficiently hard to be handled without breaking, crumbling or dusting, and may be charged to extractive pyrometallurgical installations for recovering value metals contained in the metallurgical by-products and waste products. The extrudates may also be stored without dusting and loss of hardness.

    Abstract translation: 描述了通过挤出,冶金副产物和具有小粒度的废物进行附聚的方法。 冶金副产物的混合物,其中一些含有先前在高温下处理的硅酸盐,从而能够化学和结构上结合水,任选地与波特兰水泥和/或矿渣水泥混合,并且含有以 硅酸盐和水泥可以完全吸收和反应,进一步与烃类物质混合。 随后通过挤出将所得混合物团聚。 获得的挤出物具有形状保持性,并且足够难以处理而不会破裂,破碎或撒粉,并且可以装入用于回收金属副产物和废物中含有的金属的金属的冶金冶金设备。 挤出物也可以在没有粉尘和硬度损失的情况下储存。

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