会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明公开
    • Dust preheating system with preliminary calciner
    • 具有初步计数器的预干燥系统
    • EP0153048A3
    • 1987-04-01
    • EP85300618
    • 1985-01-30
    • KABUSHIKI KAISHA KOBE SEIKO SHO
    • Fujisawa, Tetsuo
    • F27B07/20C04B07/43F27D13/00
    • F27B7/2025
    • @ A dust preheating system with a preliminary calcination furnace for powdery material, including a preheater having a plural number of dust separators connected one after another in a vertical direction to form a corresponding number of preheating stages, a preliminary calcination furnace located between the preheater and a combustion furnace when seen in the flow direction of the powdery material and connected through a combustion air duct to a clinker cooler located on the downstream side of the combustion furnace, the preliminary calcination furnace being provided with an independent fuel feeder and connected through a combustion gas duct to the lowermost dust separator for calcined material, the second lowest one of the dust separators of the preheater having the dust outlet thereof connected to the preliminary calcination furnace, and the lowermost dust separator having a calcined dust outlet connected to an inlet of the combustion furnace, characterised in that: at least the second lowest one of the dust separators is constituted by a cyclone separator having an opening in the side wall thereof and having a fine dust outlet at the bottom end thereof; and a pocket for the coarse dust hermetically connected to the opening and having a coarse dust outlet at the bottom end thereof; the fine and coarse dust outlets being connected to fine and coarse dust feed ports provided at spaced positions in the side wall of the preliminary calcination furnace.
    • 4. 发明申请
    • PLANT FOR MANUFACTURING CEMENT CLINKER
    • 制造水泥夹克的工厂
    • WO1997032824A1
    • 1997-09-12
    • PCT/DK1997000049
    • 1997-02-07
    • F.L. SMIDTH & CO. A/SJESSEN, Ejnar
    • F.L. SMIDTH & CO. A/S
    • C04B07/43
    • F27B7/2033C04B7/434
    • The present invention relates to a plant for manufacturing cement clinker. The plant consists of a preheater, a calciner in which the raw material is calcined at a temperature of more than 800 DEG C and where fuel and oxygen-containing gas are fed to the lowermost zone of the calciner, and a kiln. The object of the invention is to provide a plant for manufacturing cement in which it is possible to burn lumpy fuel in a calciner, while simultaneously maintaining the possibility of increasing the time of retention and possibly the temperature of the material being fed to the lowermost zone in the calciner. This object is achieved according to the invention in that the calciner is provided with a fixed bottom (27) allowing combustible material fed to the calciner to be deposited on the bottom and in that oxygen-containing gas is fed horizontally to the calciner through openings in the lowermost zone of the calciner. That the oxygen-containing gas is fed horizontally entails that the gas is introduced through the vertical sides/walls of the calciner, and not through the bottom.
    • 本发明涉及一种用于制造水泥熟料的设备。 该设备由预热器,煅烧炉组成,其中原料在800℃以上的温度下煅烧,其中燃料和含氧气体被供给到煅烧炉的最下部区域,以及一个窑炉。 本发明的目的是提供一种用于制造水泥的设备,其中可以在煅烧炉中燃烧块状燃料,同时保持增加保持时间的可能性和可能的​​进料到最低区域的材料的温度 在煅烧炉 根据本发明的目的是根据本发明实现的,因为煅烧炉设置有固定底部(27),允许供应到煅烧炉的可燃材料沉积在底部,并且含氧气体通过开口水平地供给煅烧炉 煅烧炉的最低区域。 含氧气体被水平地送入,导致气体通过煅烧炉的垂直侧壁/壁引入,而不是通过底部。
    • 5. 发明申请
    • METHOD FOR REDUCING NOx EMISSION FROM A KILN PLANT
    • 减少氮氧化物排放的方法
    • WO1997030003A1
    • 1997-08-21
    • PCT/DK1997000029
    • 1997-01-22
    • F.L. SMIDTH & CO. A/SHUNDEBOL, Soren
    • F.L. SMIDTH & CO. A/S
    • C04B07/43
    • B01D53/56C04B7/364F27B7/2033C04B7/44C04B7/4407
    • The invention relates to a method for reducing the NOx emission from a kiln plant for heat treatment of raw materials, in which kiln plant fuel can be fired in at least three different zones. In one of these at least three zones an amount c of fuel is burned, in a second of these zones an amount b of fuel is burned and to this second zone the NO containing exhaust gases from the other at least two zones are also fed. In the rest of these at least three zones an amount a of fuel is burned and at least a part of the raw materials are fed to these zones together with an oxygen containing gas. The total amount of fuel, b + a, burned in the second and in the last zones is determined by the need for treatment of the raw materials. When the kiln plant is used for manufacturing cement clinker, the heat treatment consists of preheating, calcining, sintering and cooling of the mineral raw materials. The invention seeks to provide a method by means of which a reduced NOx emission from a kiln plant is obtained, allowing, at the same time, utilization of fuels of low reactivity, such as petroleum coke, anthracite and other coals with a low gas content, in zones at a relatively low temperature. In accordance with the invention, this objective is accomplished in that the amounts of fuel, b and a, are adjusted in upward and downward direction until a minimum NO content is achieved in the exhaust gases from the zone to which the NO containing exhaust gases from all other firing zones are fed.
    • 本发明涉及一种用于减少窑炉用于热处理原料的NOx排放的方法,其中窑炉燃料可以在至少三个不同的区域中燃烧。 在这些至少三个区域中的一个区域中,燃料量c被燃烧,在这些区域的第二区域中,燃料量b燃烧,并且在该第二区域中,还含有来自另外至少两个区域的含有废气的NO。 在这些至少三个区域的其余部分中,燃料的量a被燃烧,并且至少一部分原料与含氧气体一起进料到这些区域。 在第二和最后一个区域燃烧的燃料总量b + a由对原材料的处理的需要决定。 当窑厂用于制造水泥熟料时,热处理由矿物原料的预热,煅烧,烧结和冷却组成。 本发明寻求提供一种方法,通过该方法可获得来自窑炉厂的减少的NOx排放,同时允许低反应性的燃料如石油焦炭,无烟煤和其他具有低气体含量的煤的利用 ,在相对较低温度的区域。 根据本发明,这个目的是通过在向上和向下的方向上调节燃料量b和a,直到从含有NO的废气来的区域的废气中获得最小的NO含量 所有其他的射击区都被喂养。