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    • 5. 发明授权
    • Pulp mill recovery
    • 纸浆回收
    • US4377439A
    • 1983-03-22
    • US208666
    • 1980-11-20
    • Albert J. Liem
    • Albert J. Liem
    • D21C11/12F23G5/30F23G7/04
    • D21C11/12F23G5/30F23G7/04F23G2201/10F23G2900/50211Y02P70/24Y10S423/03
    • A recovery system for residual liquor from a pulp mill, utilizing a fluidized bed to burn the organic material in the residual liquor and generate heat which may be recovered. Heat preferably from the flue gases is used to dry residual liquor sprayed to pellets extracted from the bed, thereby to provide pellets coated with dried residual liquor. The so coated and dried pellets are then reinjected into the bed and the organic material in the dried residual liquor is burned to generate the heat recovered from the bed.If the residual liquor is from a kraft mill sulfur compounds are in the form of sulfate and must be reduced to sulfide and a reducing stage will also be provided either in the reducing zone in existing conventional kraft system (if capacity is available) or in a separate reducing zone and some of the pellets from the bed may be directed to the reducing zone together with some of the pellets coated with dried residual liquor. Heat may be supplied to the reducing zone via an auxiliary fuel and reducing gases may also be supplied but preferably the ratio of carbon to pellets or the required temperature in the reducing zone will be obtained by the ratioing of caated and uncaated pellet fed to the reducing zone and the reduced material is withdrawn therefrom while the gases from the reducing zone are directed to the bed to complete their oxidation and generated heat.
    • 来自纸浆厂的残余液的回收系统,利用流化床将残余液中的有机物质燃烧并产生可以回收的热量。 使用优选来自烟道气的热量来干燥喷洒到从床上提取的颗粒上的残留液体,从而提供用干燥的残余液体涂覆的颗粒。 然后将如此涂覆和干燥的颗粒重新注入床中,并将干燥的残余液体中的有机材料燃烧以产生从床中回收的热量。 如果残留的液体来自硫酸盐纸浆,则硫化合物为硫酸盐形式,必须还原为硫化物,还可以在现有的常规硫酸盐系统的还原区(如果容量可用)或在 单独的还原区和一些来自床的颗粒可以与涂有干燥的残留液的一些颗粒一起导向还原区。 可以通过辅助燃料将热量供应到还原区,还可以提供还原气体,但优选地,碳与颗粒的比例或还原区中所需的温度将通过加入到还原剂 区域,并且还原材料被从其中取出,而来自还原区的气体被引导到床上以完成它们的氧化并产生热量。
    • 10. 发明授权
    • System and method for the treatment of hazardous waste material
    • 危害废物处理系统和方法
    • US5471937A
    • 1995-12-05
    • US285549
    • 1994-08-03
    • John P. KoskyJohn F. Jones
    • John P. KoskyJohn F. Jones
    • F23G5/00F23G5/027F23J11/00
    • F23G5/006F23G5/027F23G2201/10F23G2201/301F23G2201/303F23G2201/50F23G2202/103F23G2203/601F23G2206/10F23G2206/203F23G2209/24F23G2900/50201F23G2900/50211Y02E20/12Y02E20/344
    • A method for the destruction of contaminated waste material comprising the steps of sufficiently heating the waste material in an oxygen deficient atmosphere to pyrolyze the material thereby producing a volatile fuel gas stream and a decontaminated solid residue, separately removing the fuel gas stream and the decontaminated solid residue, adjusting the stoichiometric ratio of the fuel gas stream reactant components for combustion downstream, oxidatively combusting the adjusted fuel gas stream to produce a low velocity, low oxygen gas stream, and a high velocity, low oxygen carrier gas stream, recycling at least a portion of the high velocity, low oxygen carrier gas stream for direct contact with the waste material to provide heat for pyrolysis of the same, contacting at least a portion of the low velocity, low oxygen carrier gas stream with water to produce an oxygen rich, substantially inert, heat exchange gas stream and indirectly heating the contaminated material with the heat exchange gas stream to provide supplemental heat.
    • 一种用于破坏污染废料的方法,包括以下步骤:在缺氧气氛中充分加热废料以热解材料,从而产生挥发性燃料气流和去污固体残渣,分别除去燃料气流和去污固体 残余物,调节用于燃烧下游的燃料气流反应物组分的化学计量比,将调整后的燃料气流氧化燃烧以产生低速,低氧气流和高速,低氧载气流,将至少一个 高速,低氧载气流的一部分,用于与废料直接接触以提供热量用于其热分解,使至少一部分低速,低氧载气流与水接触以产生富氧, 基本惰性的热交换气流,并用热交换间接加热受污染的材料 ange气流提供补充热量。