Process for making high-strength synthetic aggregates
    11.
    发明授权
    Process for making high-strength synthetic aggregates 失效
    制造高强度合成骨料的方法

    公开(公告)号:US5364572A

    公开(公告)日:1994-11-15

    申请号:US10241

    申请日:1993-01-28

    IPC分类号: C04B18/02 B29C67/02

    CPC分类号: C04B18/021 Y02W30/92

    摘要: A process for making high-strength aggregates including hydrating calcium oxide containing coal combustion ash for a sufficient period of time to convert a high percentage of the calcium oxide to calcium hydroxide prior to forming the aggregates and curing the aggregates in high humidity. The moisture of the hydrated material is monitored to vary the hydration moisture to the desired set point. Further, the process involves producing high-strength aggregates from calcium hydroxide containing FGD ashes such as generated from duct sorbent injection and spray dryer processes.

    摘要翻译: 一种制备高强度聚集体的方法,包括将氧化钙包含煤燃烧灰足够长的时间以在形成聚集体之前将高百分数的氧化钙转化为氢氧化钙,并在高湿度下固化聚集体。 监测水合材料的水分以将水合水分改变到所需的设定点。 此外,该方法涉及由含有FGD灰分的氢氧化钙生产高强度聚集体,例如由管道吸附剂注射和喷雾干燥器工艺产生的。

    Control of froth flotation separation
    12.
    发明授权
    Control of froth flotation separation 失效
    泡沫浮选分离控制

    公开(公告)号:US4559134A

    公开(公告)日:1985-12-17

    申请号:US676897

    申请日:1984-11-30

    申请人: George E. Wasson

    发明人: George E. Wasson

    CPC分类号: B03D1/02 B03B13/00 B03B9/005

    摘要: In a froth flotation beneficiation, the rate of addition of collector reagent is varied in response to the change in particle size effected by the beneficiation, as determined by comparing a size analysis of solid particles in one of the separated streams with a size analysis of solid particles in the feed stream.

    摘要翻译: 在泡沫浮选精选中,收集剂的添加速率随着选矿影响的粒度变化而变化,如通过比较一个分离的流中的固体颗粒的尺寸分析与固体的尺寸分析所确定的 进料流中的颗粒。

    Separation of clay from coal
    13.
    发明授权
    Separation of clay from coal 失效
    从煤中分离粘土

    公开(公告)号:US4437982A

    公开(公告)日:1984-03-20

    申请号:US406151

    申请日:1982-08-09

    申请人: George E. Wasson

    发明人: George E. Wasson

    IPC分类号: B03B1/04 B03B9/00 B03B1/00

    CPC分类号: B03B1/04 B03B9/005

    摘要: A method of separating fine coal particles from refuse particles comprising the step of:(a) providing a coal filter cake(b) forming a slurry of fine coal particles, refuse particles in a liquid mixture comprising water and organic liquid,(c) contacting said coal filter cake with said slurry,whereby a major portion of said water and a major portion of said refuse pass through said filter cake and a major portion of said organic liquid and a major portion of said fine coal particles pass across the top of said filter cake.

    摘要翻译: 一种从垃圾颗粒中分离细煤颗粒的方法,包括以下步骤:(a)提供形成细煤颗粒浆料的煤滤饼(b),将颗粒悬浮在包含水和有机液体的液体混合物中,(c) 所述煤滤饼具有所述浆料,由此所述水的主要部分和所述垃圾的主要部分通过所述滤饼和所述有机液体的主要部分,并且所述细煤颗粒的主要部分穿过所述滤饼的顶部 滤饼

    Apparatus for agglomerating finely divided agglomerative materials in a
rotating drum
    14.
    发明授权
    Apparatus for agglomerating finely divided agglomerative materials in a rotating drum 失效
    用于在旋转鼓中聚集精细分散的聚集材料的装置

    公开(公告)号:US4046496A

    公开(公告)日:1977-09-06

    申请号:US698223

    申请日:1976-06-21

    IPC分类号: B01J2/12 B29B1/02

    CPC分类号: B01J2/12

    摘要: A rotary drum assembly includes separate agglomerating and hardening drums that are rotated independently of each other. The agglomerating drum has a generally cylindrical configuration with an inner cylindrical wall. A scraper is rotatably positioned within the agglomerating drum in spaced relation to the inner cylindrical wall with its axis spaced from the axis of the drum. The scraper has a tubular body portion with a plurality of parallel rows of blades extending radially therefrom. Each of the rows extends lengthwise along substantially the entire length of the scaper body portion and follow a helical path having a single turn about the axis of the tubular body portion. The rows of blades thus make a single convolution about the scraper body portion. Drive means are provided to synchronously rotate the agglomerating drum and scraper with the scraper arranged to rotate at a preselected and different speed relative to the speed of the drum. Agglomerative material is introduced into the rotating agglomerating drum and forms a layer of agglomerative material on the drum inner cylindrical wall. The scraper is rotated in the same direction as the direction of rotation of the agglomerating drum and at a preselected synchronous speed with the agglomerating drum. The rows of parallel blades on the scraper form a plurality of spaced elongated generally longitudinal ridges and valleys in the layer of agglomerative material on the drum cylindrical wall. The ridges have a slight arcuate configuration and form less than a single convolution throughout the entire length of the agglomerating drum. The spaced elongated ridges in the layer of agglomerative material extend lengthwise in the drum substantially parallel to the axis of the drum and serve as longitudinally extending lifters to mix and agitate other particulate agglomerative materials introduced into the drum by lifting portions of the other particulate agglomerative material from the underside of the bed and depositing the material on the upper surface of the bed. This type of mixing promotes the formation of agglomerates having a preselected relatively narrow size range. The synchronous rotation of the scraper removes agglomerative material deposited on the surface of the elongated ridges and valleys formed in the layer of agglomerative material so that the desired ridge and valley configuration is maintained in the layer of agglomerative material.