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公开(公告)号：US4887383A
公开(公告)日：1989-12-19
申请号：US125184
申请日：1987-11-25
CPC分类号： C10L1/322 , C10L1/326 , Y10S516/01
摘要： A process for producing a slurry of a pulverized carbonaceous material having a predetermined particle size distribution with a certain average particle size and a certain maximum particle size is described. The process, which includes a comminuting phase comprising at least two milling stages and combining the milled material with a carrier liquid to provide the slurry is characterized by the following steps:(a) that the carbonaceous material is milled in a first milling stage;(b) that the milled product from stage (a) is divided into coarse material having a particle size which at least is larger than the average particle size of the predetermined particle size distribution and into fine material having a particle size smaller than that of the coarse material;(c) that the coarse material from stage (b) is milled in at least one further milling stage to produce at least one further portion of fine material, the average particle size of which is smaller than the average particle size of the final slurry; and(d) that a slurry is produced of the combined portions of fine material from the different stages.
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2.发明授权Aqueous slurry of a solid fuel and a process and means for the production thereof 失效固体燃料的水性浆料及其生产方法和方法
公开(公告)号：US4549881A
公开(公告)日：1985-10-29
申请号：US492197
申请日：1983-05-06
CPC分类号： C10L1/322 , C10L1/326 , Y10S516/01
摘要： An aqueous slurry of a solid fuel and a process and a means for producing said slurry are described. The aqueous slurry comprises a highly concentrated slurry of a pulverized, carbonaceous material having a particle size of at most 0.5 mm, and 0.02-2% by weight of at least two surface active additives. The solids content of the slurry is 65-90% by weight, preferably 70-80% by weight. The slurry is characterized in that the surface active additives include, as a major part, a water-soluble nonionic surface active agent which is an alkylene oxide adduct with a hydrophobic part and a hydrophilic part, said hydrophilic part consisting of at least one polyalkylene oxide chain with a length of at least 40, preferably 50-150 ethylene oxide units; and, as a minor part, an ionic surface active agent.The ionic surface active agent preferably has the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen or an alkyl group with 1-22 carbon atoms, provided that the sum of the number of carbon atoms of R.sub.1 and R.sub.2 is at least 6, and Z.sub.1 designates the group --SO.sub.3 H, --CH.sub.2.sup.+ NHR.sub.3 R.sub.4 X.sup.- or --CH.sub.2.sup.+ NR.sub.3 R.sub.4 R.sub.5 X.sup.-, wherein R.sub.3, R.sub.4 and R.sub.5 are alkyl and/or hydroxyalkyl groups with 1-4 carbon atoms and X is an anion, and n is 40-200.
摘要翻译： 描述了一种固体燃料的含水浆料和一种制备该浆料的方法和装置。 含水浆料包含粒度为至多0.5mm的粉碎碳质材料和0.02-2重量％的至少两种表面活性添加剂的高浓度浆料。 浆料的固体含量为65-90重量％，优选为70-80重量％。 该浆料的特征在于，表面活性添加剂主要包括作为疏水部分和亲水部分的烯化氧加成物的水溶性非离子表面活性剂，所述亲水部分由至少一种聚环氧烷 链长至少为40，优选为50-150个环氧乙烷单元; 和作为次要部分的离子表面活性剂。 离子表面活性剂优选具有以下通式：其中R 1和R 2为氢或具有1-22个碳原子的烷基，条件是R 1和R 2的碳原子数之和为 至少6，Z1表示基团-SO 3 H，-CH 2 + NHR 3 R 4 X-或-CH 2 + NR 3 R 4 R 5 X - ，其中R 3，R 4和R 5是具有1-4个碳原子的烷基和/或羟基烷基，X是阴离子，n 是40-200。
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公开(公告)号：US4565549A
公开(公告)日：1986-01-21
申请号：US492196
申请日：1983-05-06
CPC分类号： C10L1/322 , C10L1/326 , Y10S516/01
摘要： An aqueous slurry of a solid fuel and a process for producing said slurry are described. The aqueous slurry consists of a highly concentrated slurry of a pulverized, carbonaceous material having a particle size of at most 0.5 mm, and 0.02-2% by weight of at least one additive. The solids content of the slurry is 65-90% by weight, preferably 70-80% by weight. The slurry is characterized in that the additive includes a water-soluble surface active compound which is an ethylene oxide adduct having the following formula:RO(CH.sub.2 CH.sub.2 O).sub.n Hwherein R is an aliphatic or acyl group with 10 to 24 carbon atoms or a substituted aryl group with 12-54 carbon atoms; and n is at least 40 but less than 100; or n is 40-200 in which latter case the ratio of ethylene oxide units to the number of carbon atoms in the group R is 3.5-6.0 when R is an aliphatic or acyl group and 3.0-5.5 when R is a substituted aryl group. By adding the ethylene oxide adduct after wet milling and dewatering of the carbonaceous material, an aqueous slurry is obtained which is stable, i.e. it does not separate during transport and storage, as well as low-viscous, i.e. pumpable at a high solids content. In addition to the specific ethylene oxide adduct which preferably is added in a concentration of 0.05-0.8% by weight, other conventional additives, such as stabilizers, antifoaming agents, pH-modifying additives and antimicrobial agents may be added.
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4.发明授权Pumpable aqueous slurry of a solid fuel and a process for the production thereof 失效固体燃料的可泵送含水浆料及其生产方法
公开(公告)号：US4496367A
公开(公告)日：1985-01-29
申请号：US492195
申请日：1983-05-06
CPC分类号： C10L1/326 , Y10S516/01
摘要： A pumpable aqueous slurry of a solid fuel in the form of a pulverized, carbonaceous material and a process for the production of such slurry are described. The aqueous slurry comprises a component which consists of coarse grains of carbonaceous material having a particle size of up to 25 mm, and a further component which consists of a carrier liquid in which the coarse-grained carbonaceous material is suspended. The carrier liquid proper has a solids content of 65-90% by weight and consists of water and pulverized, carbonaceous material having a particle size of at most 0.5 mm, preferably at most 350 .mu.m, and 0.02-2% by weight of at least one additive including a water-soluble surface active compound which consists of an alkylene oxide adduct having a hydrophobic part and a hydrophilic part, said hydrophilic part consisting of a polyalkylene oxide chain, preferably a polyethylene oxide chain, having a length of 40-200 alkylene oxide units. The pumpable aqueous slurry is produced by first preparing the carrier liquid and then adding to said liquid 20-40% of the coarse-grained, carbonaceous material, based upon the total weight of the aqueous slurry. The aqueous slurry is intended primarily for pumping in pipelines.
摘要翻译： 描述了粉碎，碳质材料形式的固体燃料的可泵送含水浆料和用于生产这种浆料的方法。 含水浆料包括由粒状最大为25mm的碳质材料的粗粒组成的组分和由粗粒碳质材料悬浮在其中的载体液体组成的另一组分。 载体液体固体含量为65-90重量％，由水和粉碎的碳质材料组成，其粒度至多为0.5毫米，优选至多350微米，和0.02-2重量％ 至少一种添加剂，其包括由具有疏水部分和亲水部分的烯化氧加合物组成的水溶性表面活性化合物，所述亲水部分由聚环氧烷链，优选聚环氧乙烷链组成，长度为40-200 氧化烯单元。 可泵送的含水浆料是通过首先制备载体液体，然后基于含水浆料的总重量向所述液体中添加20-40％的粗粒碳质材料。 含水浆料主要用于泵送管道。
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5.发明授权Method of preparing an aqueous slurry of solid carbonaceous fuel particles and an aqueous slurry so prepared 失效制备如此制备的固体碳质燃料颗粒和含水浆料的含水浆料的方法
公开(公告)号：US4627855A
公开(公告)日：1986-12-09
申请号：US419996
申请日：1984-08-17
CPC分类号： C10L1/326
摘要： The surfaces of solid fuel particles, in a solid fuel particle slurry in water, are oxidized by exposure to the action of an oxidizing agent, representatively potassium permanganate, to alter the characteristics thereof and permit the employment of reduced amounts of surface-active agent for purposes of attaining desired characteristics of the slurry, which slurry also comprises a part of the invention as disclosed.
摘要翻译： 固体燃料颗粒在水中的固体燃料颗粒浆料中的表面通过暴露于代表性的高锰酸钾的氧化剂的作用而被氧化，以改变其特性，并允许使用减少量的表面活性剂 获得浆料期望特性的目的，该浆料还包括本文所公开的本发明的一部分。
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公开(公告)号：US4577838A
公开(公告)日：1986-03-25
申请号：US621882
申请日：1984-06-18
申请人： Mait M. Mathiesen
发明人： Mait M. Mathiesen
CPC分类号： C22B4/005 , C22B1/2406 , C22B1/2413
摘要： A system for providing thermal and chemical energies for the production of pelletized iron ore concentrates while allowing a reduction of a portion of the material in process. The material in process is introduced as ore fines, pelletized and fired in an indurator to produce feedstock for reduction by further processing. A portion of the material in process is diverted to a reduction plant. The reduction plant provides thermal and chemical energies for the indurator. In a preferred embodiment, a low temperature plasma generator is employed, either as the reduction plant or to provide thermal and chemical energies for reduction. When a distinct reduction plant is employed, top gases from such plant may be supplied to the indurator to provide thermal and chemical energies therefor and to the plasma generator for recarburization thereof. The material in process may be diverted as ore fines or as fired or unfired pelletized ore concentrates.
摘要翻译： 一种用于提供用于生产粒状铁精矿的热能和化学能的系统，同时允许减少一部分在期的材料。 正在处理的材料以矿石粉末的形式引入，在造型机中造粒和烧制，以通过进一步加工生产原料以进行还原。 正在处理的一部分材料被转移到还原装置。 还原厂为推土机提供热能和化学能。 在优选实施例中，采用低温等离子体发生器作为还原装置，或提供用于还原的热和化学能。 当采用独特的还原装置时，来自这种设备的顶部气体可以被供应给驱除装置以提供热能和化学能量和等离子体发生器用于其再渗透。 正在处理的材料可以作为矿石粉碎或作为烧制或未烧成的粒状矿石精矿转移。
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