公开(公告)号：US4006003A

公开(公告)日：1977-02-01

申请号：US626692

申请日：1975-10-29

Applicant: Valdis R. Daiga

Inventor： Valdis R. Daiga

IPC: C03B5/235 ,  C03B5/04

CPC classification number: C03B5/235

Abstract: A process is provided for melting glass forming ingredients by supplying all, or at least part, of the total heat required for such melting from the combustion of a combustible fuel which is an admixture of particulate coal and oil. The melting operating can be accomplished without any difficulty of temperature control and with no adverse effects on the quality or composition of the final glass. Excellent results are obtained employing, for example, a combustible fuel mixture of about 40% by weight of particulate coal having a particle size less than about 200 mesh and about 60% by weight of Number 2 fuel oil.

Abstract translation: 提供了一种熔融玻璃形成成分的方法，该方法是从作为颗粒状煤和油的混合物的可燃燃料的燃烧提供所有或至少部分的这种熔融所需的总热量。 熔化操作可以在没有温度控制的难度的情况下完成，并且对最终玻璃的质量或组成没有不利影响。 使用例如约40重量％的颗粒状煤的可燃性燃料混合物获得了优异的结果，颗粒煤的颗粒尺寸小于约200目，约2重量％的燃料油为约60重量％。

公开(公告)号：US06120577A

公开(公告)日：2000-09-19

申请号：US47770

申请日：1998-03-25

Applicant: Peter J. Koros ,  Jagjit S. Bajaj ,  Valdis R. Daiga ,  Vishwaprakash S. Hegde

Inventor： Peter J. Koros ,  Jagjit S. Bajaj ,  Valdis R. Daiga ,  Vishwaprakash S. Hegde

IPC: C22B1/16 ,  C21B3/04 ,  C21B13/00 ,  C21B13/10 ,  C22B1/245 ,  C22B7/00 ,  C22B7/02 ,  C22B13/02 ,  C22B19/30 ,  C21B11/08 ,  C22B13/06 ,  C22B19/04

CPC classification number: C22B19/30 ,  C21B13/0046 ,  C21B13/105 ,  C22B1/245 ,  C22B7/02 ,  Y02P10/216 ,  Y10S75/961

Abstract: A process of recovering iron values and separating zinc oxides and other contaminants from steel mill waste metal oxides, such as blast furnace dust, BOF dust, mill scale and oily sludges, characterized by iron metallization levels up to 95% or more and zinc oxide removal in excess of 99%, and including the steps of blending the oxides with coke breeze in an amount sufficient to provide a total carbon content of 16% to 22%, the coke breeze having a particle size of 50% or more plus 60 mesh or larger, briquetting the blend to form briquettes having a thickness ranging from 1/2" to 3/4", and firing the briquettes in a rotary hearth furnace to metallize the iron and evolve zinc and other oxide contaminants.

Abstract translation: 回收铁值并从钢铁废金属氧化物中分离出锌氧化物和其他污染物的方法，如高炉粉尘，BOF粉尘，磨矿规模和油性污泥，铁金属化水平高达95％以上，氧化锌去除 超过99％，并且包括以足以提供总碳含量为16％至22％的量将氧化物与焦炭粉混合的步骤，焦炭微粒的粒径为50％以上加上60目或 较大的压块混合物以形成具有从+ E，fra 1/2 + EE“到+ E，fra 3/4 + EE”的厚度的团块，并且在转底炉中烧制团块以使铁 并发展锌和其他氧化物污染物。

公开(公告)号：US06270551B1

公开(公告)日：2001-08-07

申请号：US09122972

申请日：1998-07-27

Applicant: Franklin G. Rinker ,  Deane A. Horne ,  James A. Thornton ,  Valdis R. Daiga

Inventor： Franklin G. Rinker ,  Deane A. Horne ,  James A. Thornton ,  Valdis R. Daiga

IPC: C21B1308

CPC classification number: C22B1/245 ,  C21B13/0046 ,  C21B13/08 ,  C21B13/10 ,  C21B13/105 ,  C22B1/24 ,  Y02P10/136

Abstract: A process for recovering iron from iron-bearing materials including steel mill waste and iron-bearing ores. The process includes the steps of providing a mixture of iron-bearing materials having iron oxides therein and carbonaceous material. Blending with the mixture an organic binder. The mixture is then agglomerated to form green compacts. The green compacts are then loaded into a preheated rotary hearth furnace void of compacts to form a layer of compacts no more than about two compacts high. The green compacts are heated for about 5-12 minutes at a temperature of between about 2200-2500° F. to reduce the compacts and evolve undesirable oxides from the compacts. The reduced compacts are then discharged from the rotary hearth furnace whereupon they are soaked to provide additional time for reaction to achieve 99% or more reduction of the iron oxides. The metallized iron compacts may then be cooled or transported hot to a steel making operation.

Abstract translation: 从含铁材料回收铁的方法，包括钢厂废铁和含铁矿石。 该方法包括提供其中含铁氧化物的含铁材料和含碳材料的混合物的步骤。 与混合物混合有机粘合剂。 然后将混合物团聚以形成生坯。 然后，将压坯装入预热的旋转炉床炉中，其不具有压块，以形成不超过约两个压块的压实层。 将生坯在约2200-2500°F的温度下加热约5-12分钟，以减小压块并从压块中产生不需要的氧化物。 然后将还原的压块从转底炉中排出，然后将它们浸泡以提供额外的反应时间以实现99％或更多的氧化铁还原。 然后可以将金属化的铁压块冷却或热输送至炼钢操作。

公开(公告)号：US4924785A

公开(公告)日：1990-05-15

申请号：US280014

申请日：1988-12-05

Applicant: Thomas J. Schultz ,  Jay K. Shah ,  Valdis R. Daiga

Inventor： Thomas J. Schultz ,  Jay K. Shah ,  Valdis R. Daiga

IPC: A62D3/00 ,  C10B7/14 ,  C10B53/00 ,  C10B53/07

CPC classification number: C10B53/07 ,  C10B53/00 ,  C10B7/14 ,  Y02P20/143

Abstract: A semi-continuous pyrolysis arrangement is disclosed which is particularly useful in the reclamation of a base material in a substantially pure form from a composite material which has organic compounds. The furnace base barrier free zones wherein the waste material is continuously pyrolyzed as it is indexed through the furnace and each zone is controlled in a preset manner established from pyrolyzing a sample waste specimen under controlled conditions. Preferably, the waste is containerized as a particulate solid in discrete static beds permitting a fan exhaust arrangement to establish convective heat transfer with the bed while also establishing the furnace zones. An exothermic zone is provided at the end of the furnace to remove fixed carbon from the pyrolyzed waste by bleeding substoichiometric amounts of air in an oxygen temperature controlled manner to permit recovery of the waste in a substantially pure form.

Abstract translation: 公开了一种半连续热解装置，其特别可用于从具有有机化合物的复合材料中回收基本纯净形式的基础材料。 炉底无障碍区域，其中废物在通过炉子被分度时连续热解，并且每个区域以预定的方式控制，其在受控条件下热解样品废物样品。 优选地，废物在离散的静态床中作为颗粒固体容器化，允许风扇排气装置与床一起建立对流热传递，同时建立炉区。 在炉的末端设置放热区以通过以氧气温度控制的方式渗出亚化学计量的空气来从热解的废物中除去固定的碳，以允许以基本上纯的形式回收废物。

公开(公告)号：US5865875A

公开(公告)日：1999-02-02

申请号：US797108

申请日：1997-02-10

Applicant: Franklin G. Rinker ,  Deane A. Horne ,  James Alan Thornton ,  Valdis R. Daiga

Inventor： Franklin G. Rinker ,  Deane A. Horne ,  James Alan Thornton ,  Valdis R. Daiga

IPC: C22B1/16 ,  C21B13/00 ,  C21B13/08 ,  C21B13/10 ,  C22B1/24 ,  C22B1/245

CPC classification number: C22B1/245 ,  C21B13/0046 ,  C21B13/08 ,  C21B13/10 ,  C21B13/105 ,  C22B1/24 ,  Y02P10/136 ,  Y10S75/961

Abstract: A process for recovering iron from iron-bearing materials including steel mill waste and iron-bearing ores. The process includes the steps of providing a mixture of iron-bearing materials having iron oxides therein and carbonaceous material. The mixture is agglomerated to form green compacts. The green compacts are then loaded into a preheated rotary hearth furnace void of compacts to form a layer of compacts no more than about two compacts high. The green compacts are heated for about 5 to 12 minutes at a temperature of between about 2200.degree. F. to 2500.degree. F. to reduce the compacts and evolve undesirable oxides from the compacts. The reduced compacts are then discharged from the rotary hearth furnace whereupon they are soaked to provide additional time for reaction to achieve 99% or more reduction of the iron oxides. The metallized iron compacts may then be cooled or transported hot to a steel making operation.

Abstract translation: 从含铁材料回收铁的方法，包括钢厂废铁和含铁矿石。 该方法包括提供其中含铁氧化物的含铁材料和含碳材料的混合物的步骤。 将混合物凝聚以形成生坯。 然后，将压坯装入预热的旋转炉床炉中，其不具有压块，以形成不超过约两个压块的压实层。 将生坯在约2200°F至2500°F的温度下加热约5至12分钟，以减小压块并从压块中产生不需要的氧化物。 然后将还原的压块从转底炉中排出，然后将它们浸泡以提供额外的反应时间以实现99％或更多的氧化铁还原。 然后可以将金属化的铁压块冷却或热输送至炼钢操作。