Blast furnace with narrowed top section and method of using

    公开(公告)号:US6030430A

    公开(公告)日:2000-02-29

    申请号:US122086

    申请日:1998-07-24

    Abstract: Described herein is an Improved Converter System designed to help reduce air, land and water pollution by completely converting materials that presently cause pollution into clean burning fuels and a host of other products beneficial to mankind. The primary conversion unit in the system is a zone controlled multipurpose slagging-ash oxygen jet blast converter. All incoming materials are passed through this process computer aided talented offspring of its two ancient prototypes the blast furnace and slagging-ash gas producers and the zone controlled blast furnaces described in U.S. Pat. Nos. 4,381,938, 4,495,054, 3,928,023 and 3,814,404. It employs two sets of tuyeres located in the bosh to input endothermic reacting gases, vapors and dusts through tuyere sets T1 and T2. A 100% oxygen jet blast is also input through tuyere set T2. Three sets of tuyeres in the stack are used to output finished products and by-products, T3, T4 and T5, zone control the stack temperature profile and remove recycling in the stack materials.Incoming solid raw materials are charged in at the top and molten slag and metal are removed from near the bottom as in conventional blast furnace practice. As the burden descends it is completely converted by the precisely controlled as to temperature volume, and composition up moving gas stream. It is originated by combusting in the bosh a more central than conventional portion of the carbonaceous grate with the oxygen jet blast entering through tuyere set T2. It furnishes the heat required to completely convert the downmoving burden to a gas, vapor, molten slag, molten metal or dust. The portion of the gas withdrawn through tuyere set T3 just above the mantel in two modes of operation is an ideal boiler fuel or reducing gas as withdrawn. When it is combusted it produces only water, carbon dioxide and nitrogen, no harmful gases or chemical residues. All other by-products withdrawn or raw materials consumed in other units in the improved converter system producing finished products needed by mankind. Burning in the bosh a more central than conventional portion of the carbonaceous grate with the oxygen jet blast entering through tuyere set T2. It furnishes the heat required to completely convert the down moving burden to a gas, vapor, molten slag, molten metal or dust. The portion of the gas withdrawn through tuyere set T3 located in the stack just above the bosh is an ideal boiler fuel or reducing gas as withdrawn. When it is combusted it produces only water, carbon dioxide and nitrogen, no harmful gases or chemical residues.

    Method of operating a blast furnace to extract carbonaceous oil and gas
from bituminous materials
    3.
    发明授权
    Method of operating a blast furnace to extract carbonaceous oil and gas from bituminous materials 失效
    操作高炉从沥青材料中提取含碳油和气体的方法

    公开(公告)号:US4495054A

    公开(公告)日:1985-01-22

    申请号:US176910

    申请日:1980-08-11

    Inventor: H. Bruce Claflin

    CPC classification number: C10G1/02 Y10S48/02 Y10S75/958

    Abstract: A blast furnace is employed to process a natural material selected from the group consisting of oil shale, oil sandstone, asphalt rock or mixtures thereof. A first carbonaceous material selected from the group consisting of oil shale, oil sandstone, asphalt rock or mixtures thereof and a second carbonaceous material are charged to the top of a blast furnace and the carbonaceous char material remaining when the burden reaches the lower portion of the blast furnace in front of the primary tuyeres is burned to provide a hot, upwardly-moving gas stream containing CO and H.sub.2 to vaporize recoverable hydrocarbons contained in the carbonaceous material as the carbonaceous material moves downwardly through the blast furnace. A gas containing hydrocarbons, CO, H.sub.2 and vaporized carbonaceous oil and tar is withdrawn from near the top of the blast furnace and a molten slag is withdrawn from near the bottom of the blast furnace. The off gas can be condensed to provide liquid oils and a gas having a desirable Btu content. Provision is also disclosed for the removal of alkali metals from the process.

    Abstract translation: 采用高炉处理选自油页岩,油砂岩,沥青岩石或其混合物的天然材料。 将选自油页岩,油砂岩,沥青岩石或其混合物的第一含碳材料和第二碳质材料装入高炉的顶部,并且当负担到达下一段时剩余的碳质炭材料 在主要风嘴前面的高炉被燃烧以提供含有CO和H 2的热的向上移动的气流,以便随着碳质材料向下移动通过高炉而将包含在碳质材料中的可回收烃气化。 含有烃,CO,H2和蒸发的碳质油和焦油的气体从高炉顶部附近排出,熔渣从高炉底部排出。 废气可以冷凝以提供液体油和具有所需Btu含量的气体。 还公开了从该方法中除去碱金属的规定。

Patent Agency Ranking