Preagglomeration of fine coal before thermal dryer in a preparation plant
    1.
    发明授权
    Preagglomeration of fine coal before thermal dryer in a preparation plant 失效
    在制备厂的热干燥器之前对细煤进行预聚集

    公开(公告)号:US4830637A

    公开(公告)日:1989-05-16

    申请号:US173850

    申请日:1988-03-28

    申请人: George E. Wasson

    发明人: George E. Wasson

    IPC分类号: C10L5/00 C10L5/04 F26B1/00

    CPC分类号: F26B1/00 C10L5/00 C10L5/04

    摘要: Method and apparatus for reducing the dustiness and increasing the size distribution of a coal product in a coal preparation plant by mixing dewatered coal fines and recycled fine coal from the cyclone separator with a binder to form an agglomerated/size enlarged coated product which can be passed through a thermal dryer.

    摘要翻译: 通过将脱盐煤粉和来自旋风分离器的再循环细煤与粘合剂混合以形成可以通过的附聚/尺寸扩大的涂覆产品来减少制煤厂中煤产品的粉尘度和增加尺寸分布的方法和装置 通过热干燥器。

    Method for making manufactured aggregates from coal combustion
by-products
    2.
    发明授权
    Method for making manufactured aggregates from coal combustion by-products 有权
    从煤燃烧副产物制造骨料的方法

    公开(公告)号:US6054074A

    公开(公告)日:2000-04-25

    申请号:US395537

    申请日:1999-09-14

    IPC分类号: C04B2/06 C04B18/02 B29C67/02

    摘要: This is a method of producing manufactured aggregates from coal combustion by-products having sulfur. Recycle fines containing calcium hydroxide, an aluminum-containing material, and water are mixed together to form a feed mix which is agglomerated into an agglomerated product. The agglomerated product is combined with curing fines which contain calcium oxide which together form a blended mix. The blended mix is cured using the moisture in the blended mix which is used to exothermally hydrate the calcium oxide in the blended mix to form calcium hydroxide and which autogenically provides the required heat for curing and converts the calcium oxide in the blended mix to a dry calcium hydroxide-containing material to form aggregate products and dry fines. The aggregate products are separated from the dry fines, the dry fines are recycled to the mixing step and the aggregates are taken and used as a useful product for other purposes.

    摘要翻译: 这是从具有硫的煤燃烧副产物制造制造的骨料的方法。 将含有氢氧化钙,含铝材料和水的细粒再循环混合在一起,形成一个进料混合物,其被聚集成聚集产物。 附聚产物与含有氧化钙的固化细粉结合在一起形成混合混合物。 使用混合混合物中的水分使混合的混合物固化,其用于使混合的混合物中的氧化钙放热水合以形成氢氧化钙,并且其自动提供所需的固化热量并将混合的混合物中的氧化钙转化为干 含氢氧化钙的材料,以形成骨料和干细粉。 聚集的产品与干细粉分离,干细粉再循环到混合步骤中,聚集体被用作其它用途的有用产品。

    Process for making high-strength synthetic aggregates
    3.
    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
    4.
    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
    5.
    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
    6.
    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.

    Process for making metallurgical coke using fluidizer char
    7.
    发明授权
    Process for making metallurgical coke using fluidizer char 失效
    使用流化剂炭冶炼焦炭的工艺

    公开(公告)号:US4248669A

    公开(公告)日:1981-02-03

    申请号:US934750

    申请日:1978-08-21

    CPC分类号: C10B57/04

    摘要: The present invention is an improvement in the known process of making a coking feedstock from non-caking or weakly caking coals for slot-type coke ovens wherein the coal is subjected to solvent extraction; and at least the non-distillable extract in the effluent slurry product, after removal of part or all of the solvent, is mixed with carbonaceous solids to serve as a binder therefor. The improvement resides in the use of fluidizer char (which is produced by the low temperature carbonization of coal in a fluidized bed) as the carbonaceous solids. The fluidizer char is preferably mixed with the coal extract slurry (after removal of solvent) in a liquid state at elevated temperatures under pelletizing and non-carbonizing conditions. The pelletized product, after cooling and crushing, is suitable as part or all of the coking feedstock for coke ovens.

    摘要翻译: 本发明是对煤炭进行溶剂萃取的槽式焦炉的非结块或弱结块煤制造焦化原料的已知方法的改进。 并且在除去部分或全部溶剂之后,将流出物淤浆产物中的至少不可馏出的提取物与碳质固体混合以作为粘合剂。 改进在于使用流化床炭(其通过在流化床中的煤的低温碳化产生)作为碳质固体。 流化剂炭优选在造粒和非碳化条件下在升高的温度下以液体状态与提取煤浆料(除去溶剂)混合。 冷却和粉碎后的造粒产品适用于焦化炉的部分或全部焦化原料。

    Process of making formcoke from non-caking or weakly caking coals
    8.
    发明授权
    Process of making formcoke from non-caking or weakly caking coals 失效
    从非结块或弱结块煤制造结构的过程

    公开(公告)号:US4030982A

    公开(公告)日:1977-06-21

    申请号:US594906

    申请日:1975-07-10

    IPC分类号: C10B55/00 C10B53/08 C10B57/08

    CPC分类号: C10B53/08 C10B57/08

    摘要: Formcoke suitable for use in a blast furnace is made from a non-caking or weakly caking coal by converting the coal to an agglomeratable material consisting essentially of a blend of the entire product (without separation of extract and undissolved solids) obtained by solvent extraction of the coal in the presence of hydrogen and a suitable amount of hydrocarbonaceous solids. The agglomeratable material is agglomerated under low temperature carbonizing conditions and the agglomerates are thereafter calcined to produce strong formcoke.

    摘要翻译: 通过将煤转化成可结块的材料,由不结块或微弱结块的煤制成的焦炭,其基本上由总体产物的混合物(不分离提取物和未溶解的固体)组成,所述混合物通过溶剂萃取 煤中存在氢气和合适量的含烃固体。 可聚结的材料在低温碳酸化条件下凝聚,然后将附聚物煅烧以产生强力的形成焦炭。

    Process for producing blast furnace grade coke, a distillable product
and fuel gases from a heavy, high sulfur, crude oil
    9.
    发明授权
    Process for producing blast furnace grade coke, a distillable product and fuel gases from a heavy, high sulfur, crude oil 失效
    用于生产高炉级焦炭,可蒸馏产品和来自重质,高硫原油的燃料气体的方法

    公开(公告)号:US4388152A

    公开(公告)日:1983-06-14

    申请号:US341381

    申请日:1982-01-21

    CPC分类号: C10B55/00 C10B49/06 C10B53/08

    摘要: A process for producing a distillable hydrocarbonaceous stream, fuel gases and blast furnace grade coke from a heavy, high sulfur, crude oil by producing delayed coke from at least a portion of the crude oil; crushing at least a portion of the coke to provide a finely divided coke feedstock to a briquetting operation where the finely divided coke is briquetted using crude oil or topped crude oil as a binder to produce briquettes of a size from about 3/4 inch to about 3 inches with the resulting briquettes being passed to a high temperature vertical calciner where the solids are desulfurized to produce a strong blast furnace grade coke. The distillable stream and fuel gas stream are recovered from the delayed coking operation, the vertical calciner and optionally a crude oil topping operation. In some instances coke particles in the size range from about 3/4 inch to about 3 inches may be passed directly to the calciner without crushing and briquetting. However, it is preferred to crush and briquette substantially all of the coke.

    摘要翻译: 一种通过从至少一部分原油生产延迟焦炭来生产来自重质,高硫原油的可蒸馏烃物流,燃料气体和高炉级焦炭的方法; 粉碎至少一部分焦炭以提供细碎的焦炭原料至压块操作,其中使用原油或顶部原油作为粘合剂将细碎的焦炭压块,以产生尺寸为约3/4英寸至约 3英寸,所得到的团块被传递到高温垂直煅烧炉,其中固体被脱硫以产生强烈的高炉级焦炭。 从延迟焦化操作,垂直煅烧炉和任选的原油上料操作中回收可馏出的料流和燃料气体流。 在一些情况下,尺寸范围为约3/4英寸至约3英寸的焦炭颗粒可以直接通过煅烧炉而不破碎和压块。 然而,优选地粉碎和压块基本上所有的焦炭。