Method and apparatus for pneumatically purging a rotating shaft exposed to pulverised particles
    22.
    发明公开
    Method and apparatus for pneumatically purging a rotating shaft exposed to pulverised particles 失效
    用于气体冲洗暴露于粉末颗粒的旋转轴的方法和装置

    公开(公告)号:EP0047026A3

    公开(公告)日:1982-03-24

    申请号:EP81200655

    申请日:1981-06-12

    CPC classification number: C21B5/003 B65G53/4633

    Abstract: L'invention s'applique plus particulièrement à un sas à rotor alvéolaire, dans lequel on évite les fuites de matière pulvérulente le long l'axe en injectant un gaz de rinçage sous pression dans le palier de l'axe.
    Pour assurer une action efficace avec le minimum possible de contrepression du gaz, on règle le débit et la pression du gaz de rinçage de manière que son débit, ainsi que la différence entre la pression du gaz de rinçage et celle du gaz de propulsion soit constante et, au niveau de l'injection du gaz de rinçage, on divise progressivement le flux de ce gaz pour le distribuer uniformément autour de l'axe.

    METHOD USING A CATALYTIC MATERIAL TO IMPROVE THE HEAT BALANCE AND THE GAS OF A BLAST FURNACE
    25.
    发明申请
    METHOD USING A CATALYTIC MATERIAL TO IMPROVE THE HEAT BALANCE AND THE GAS OF A BLAST FURNACE 审中-公开
    使用催化材料改善热平衡和燃烧气体的方法

    公开(公告)号:WO1992013106A1

    公开(公告)日:1992-08-06

    申请号:PCT/CH1991000019

    申请日:1991-01-21

    Inventor: AMCO ANSTALT

    CPC classification number: C21B5/003 C21B5/007

    Abstract: A method using a liquid catalytic material sprayed onto a solid fuel injected into a blast furnace. The main function of the method is to alter the combustion of the fuels in the blast furnace to improve the heat balance and the quality of the blast furnace gases.

    Abstract translation: 一种使用喷射到注入高炉的固体燃料上的液体催化材料的方法。 该方法的主要功能是改变高炉燃料的燃烧,提高高炉煤气的热平衡和质量。

    PROCESS AND DEVICE FOR INJECTING COAL DUST AND OXYGEN INTO A BLAST FURNACE
    26.
    发明申请
    PROCESS AND DEVICE FOR INJECTING COAL DUST AND OXYGEN INTO A BLAST FURNACE 审中-公开
    将煤灰和氧气注入火炉的工艺和装置

    公开(公告)号:WO1991014791A1

    公开(公告)日:1991-10-03

    申请号:PCT/DE1991000247

    申请日:1991-03-20

    CPC classification number: C21B5/003

    Abstract: The invention concerns a process and device for injecting in particular coal dust by a dense-flow method using oxygen in/through a blowing mould in a blast furnace by means of at least one lance projecting into the mould. The coal dust is mixed together with the oxygen in the immediate vicinity of the mouth (7) of the lance, and the exit speeds of the coal dust and the oxygen can preferably be altered over wide ranges. The lance (1) used preferably has a coal-conveying inner tube and an outer tube which surrounds the inner tube concentrically to form an annular gap (3), the oxygen being fed in through this annular gap (3).

    Abstract translation: 本发明涉及一种用于通过使用氧气在高炉中/通过吹塑模具中的氧气通过至少一个喷射到模具中的喷枪的致密流动方法来喷射特别是煤尘的方法和装置。 煤尘与喷枪的口部(7)附近的氧气一起混合,煤尘和氧气的排出速度优选在宽范围内改变。 优选使用的喷枪(1)具有输送内管和外管,其同心地围绕内管以形成环形间隙(3),氧气通过该环形间隙(3)进给。

    NOVEL BLAST FURNACE PROCESS WITH ECONOMICAL IRON AND STELL PRODUCTION
    27.
    发明申请
    NOVEL BLAST FURNACE PROCESS WITH ECONOMICAL IRON AND STELL PRODUCTION 审中-公开
    具有经济性和钢铁生产的新型吹制工艺

    公开(公告)号:WO1991002822A1

    公开(公告)日:1991-03-07

    申请号:PCT/AT1989000072

    申请日:1989-08-22

    CPC classification number: C21B5/008

    Abstract: The purpose of the invention is to reduce the relatively high carbon content in the traditional blast furnace by suitable means in such a way that steel melts meeting the EUROSTANDARDS are produced. Structurally, the suitable means are the provisions of a free pan or crucible-like handling area in the region of the boshes, a coking plant using coal or lignite at about the middle of the furnace and an inclined blow mould plane with blow smelting. The handling area is intended for direct iron reduction without the generation of undesired iron carbide and for the use of a refining process at the edge of the frame or through and adjacent reaction chamber. The arrangement of the coking plant inside the furnace is such that the brightly glowing coke and the highly heated reduction material meet in the handling area, resulting in shock reduction with a short reaction time in the blow mould plane without the undersired formation of iron carbide.

    Abstract translation: 本发明的目的是通过合适的方法减少传统高炉中相对较高的碳含量,从而生产满足EUROSTANDARDS的钢熔化。 在结构上,合适的手段是在熔融区域内的自由盘或坩埚状处理区域的设置,在炉中部附近使用煤或褐煤的焦化设备和具有吹炼熔炼的倾斜吹塑模具平面。 处理区域用于直接还原铁,而不产生不期望的碳化铁,并且用于在框架的边缘处或通过和相邻的反应室的精炼过程。 炼焦设备在炉内的布置使得明亮发光的焦炭和高度加热的还原材料在处理区域相遇,导致在吹塑模具平面中反应时间短而没有碳化三铁形成较少的减震。

    IMPROVEMENTS IN OR RELATING TO IRONMAKING BY MEANS OF A SMELTING SHAFT FURNACE
    28.
    发明申请
    IMPROVEMENTS IN OR RELATING TO IRONMAKING BY MEANS OF A SMELTING SHAFT FURNACE 审中-公开
    改进或相关于通过熔化轴熔炼制造的改进

    公开(公告)号:WO1986005520A1

    公开(公告)日:1986-09-25

    申请号:PCT/GB1986000145

    申请日:1986-03-13

    CPC classification number: C21B5/003

    Abstract: A method of ironmaking by means a smelting shaft furnace including the steps of supplying iron ore and coke to the top of the furnace; and injecting coal and oxygen into the smelting zone of the furnace to promote combustion, to control reaction temperature and provide heat for smelting, the quantities of coal and oxygen injections being within the range of 0.7 to 1.7 of stochiometric conditions with respect to combustion to carbon monoxide and hydrogen.

    Abstract translation: 一种通过熔炼竖炉的炼铁方法,包括将铁矿石和焦炭供应到炉顶; 并将煤和氧气注入炉的冶炼区域以促进燃烧,控制反应温度并提供熔炼热量,煤和氧气注入量在相对于燃烧至碳的化学计量条件的0.7至1.7的范围内 一氧化碳和氢气。

    BLAST FURNACE INJECTION OF OVERHEATED REDUCING GASES
    29.
    发明申请
    BLAST FURNACE INJECTION OF OVERHEATED REDUCING GASES 审中-公开
    过热减排气体喷射

    公开(公告)号:WO1982003091A1

    公开(公告)日:1982-09-16

    申请号:PCT/BE1982000003

    申请日:1982-03-04

    CPC classification number: C21B5/002 C21B5/001

    Abstract: Overheated reducing gases are injected into the blast-furnace, at the main blast-pipes, at a temperature ranging from 1500 to 2800`C, produced from solid fuel, said gases containing essentially CO, H u, N u, CO u and H uO. These reducing gases are obtained from a solid fuel, preferably dried and finely ground, injected in adequate proportions (O/carbon ratio) in a reactor where it is gasified by contact with an oxidizing agent such as air, over oxygenated wind or recycled top gases having a sufficient CO u content. These reducing gases are preferably overheated by electric process, particularly in a plasma torch.

    Abstract translation: 过热的还原气体在主吹风管中被喷射到高炉中,温度范围为1500至2800℃,由固体燃料制成,所述气体基本上包含CO,H u,N u, u,CO u和H u。 这些还原气体由固体燃料获得,优选干燥和细磨,在反应器中以足够的比例(O /碳比)注入,其中通过与氧化剂如空气接触而气化,在氧化风或再循环的顶部气体 具有足够的CO u含量。 这些还原气体优选通过电工艺过热,特别是在等离子体焰炬中。

    DEVICE AND PROCESS FOR FEEDING COAL INTO A SHAFT FURNACE
    30.
    发明申请
    DEVICE AND PROCESS FOR FEEDING COAL INTO A SHAFT FURNACE 审中-公开
    方法和装置煤竖炉吹

    公开(公告)号:WO1997046718A1

    公开(公告)日:1997-12-11

    申请号:PCT/EP1997002530

    申请日:1997-05-16

    CPC classification number: C21B5/003

    Abstract: The proposal is for a device and a process for feeding coal dust into a shaft furnace in which coal dust is fed into the shaft furnace by means of a carrier gas through a feed line (20). The coal dust is heated, before entering the feed line (20), preferably in several stages in a plurality of containers (4, 10, 14) one behind another in which there are heating elements (28, 42, 44).

    Abstract translation: 它被引入到竖炉方法和粉煤喷射装置,是由通过输送线路(20)到所述竖炉的载气的装置在粉煤引入。 煤尘由此进入输送管线(20),其中的煤尘的加热优选在几个连续的容器(4,10,14)进行的加热元件(28,42,44)被布置在该多个阶段之前被加热。

Patent Agency Ranking