Method and system including a double rotary kiln pyrolysis or
gasification of waste material
    91.
    发明授权
    Method and system including a double rotary kiln pyrolysis or gasification of waste material 失效
    方法和系统包括双回转窑热解或气化废料

    公开(公告)号:US5662052A

    公开(公告)日:1997-09-02

    申请号:US557656

    申请日:1995-11-13

    Abstract: A method of destructively distilling an organic material in particulate form wherein the particulates are introduced through an inlet into one end of an inner rotating kiln ganged to and coaxial with an outer rotating kiln. The inner and outer kilns define a cylindrical annular space with the inlet being positioned in registry with the axis of rotation of the ganged kilns. During operation, the temperature of the wall of the inner rotary kiln at the inlet is not less than about 500.degree. C. to heat the particulate material to a temperature in the range of from about 200.degree. C. to about 900.degree. C. in a pyrolyzing atmosphere to reduce the particulate material as it moves from the one end toward the other end. The reduced particulates including char are transferred to the annular space between the inner and the outer rotating kilns near the other end of the inner rotating kiln and moved longitudinally in the annular space from near the other end toward the one end in the presence of oxygen to combust the char at an elevated temperature to produce a waste material including ash. Also, heat is provided which is transferred to the inner kiln. The waste material including ash leaves the outer rotating kiln near the one end and the pyrolysis vapor leaves through the particulate material inlet.

    Abstract translation: 一种以颗粒形式破坏性地蒸馏有机材料的方法,其中颗粒通过入口引入与外部旋转窑组合并与外部旋转窑同轴的内部旋转窑的一端。 内窑和外窑定义一个圆柱形环形空间,入口被定位成与组合窑的旋转轴线对齐。 在操作过程中,入口内部回转窑壁的温度不低于约500℃,以将颗粒材料加热至约200℃至约900℃的温度 热解气氛,以便在从一端朝向另一端移动时减小颗粒材料。 包含炭的还原颗粒被转移到内转动窑的另一端附近的内外旋转窑之间的环形空间中,并且在氧存在的情况下在环形空间中从另一端的另一端向一端纵向移动到 在高温下燃烧焦炭以产生包括灰分的废料。 此外,提供了传递到内窑的热量。 包括灰分的废料在一端附近离开外部旋转窑,并且热解蒸气通过颗粒材料入口离开。

    Apparatus and method for burning waste material
    92.
    发明授权
    Apparatus and method for burning waste material 失效
    废料废弃设备及方法

    公开(公告)号:US5655463A

    公开(公告)日:1997-08-12

    申请号:US492426

    申请日:1995-06-19

    Applicant: Lewis D. Good

    Inventor: Lewis D. Good

    Abstract: A furnace includes a decomposition chamber configured to form a fire pit for controlled decomposition of combustible waste material, a preheat chamber connected to and located generally above the decomposition chamber, and an afterburn chamber operably connected to an outlet on the decomposition chamber. The decomposition chamber includes an inlet for allowing controlled input of air to the decomposition chamber to create an oxygen-starved environment. The outlet is positioned generally opposite the inlet on the decomposition chamber and adjacent the fire pit such that the gases from the preheat chamber and the decomposition chamber flow generally across the decomposition chamber and through the burning/decomposing waste materials in the fire pit. The afterburn chamber chamber operates with a vacuum such that the gases and vapors from the preheat chamber and the decomposition chamber are drawn through the fire pit such that they are treated by the hot decomposing matter in the fire pit. A heat exchanger and roaster are operably connected to the exhaust of the afterburn chamber. An input mechanism for controlling input of chopped waste materials is connected to the preheat chamber.

    Abstract translation: 炉包括分解室,其被配置为形成用于可燃废料的可控分解的火坑,连接到并位于分解室上方的预热室,以及可操作地连接到分解室上的出口的再燃烧室。 分解室包括用于允许受控地输入空气至分解室的入口以产生缺氧环境。 出口大致与分解室上的入口相对并且与火坑相邻,使得来自预热室和分解室的气体通常流过分解室并通过火坑内的燃烧/分解废料。 再燃室室以真空操作,使得来自预热室和分解室的气体和蒸汽被吸入火焰坑,使得它们被火坑内的热分解物质处理。 热交换器和焙烧器可操作地连接到再燃烧室的排气口。 用于控制切碎废料的输入的输入机构连接到预热室。

    Method of controlling hydrocarbon release rate by maintaining target
oxygen concentration in discharge gases
    93.
    发明授权
    Method of controlling hydrocarbon release rate by maintaining target oxygen concentration in discharge gases 失效
    通过维持放电气体中的目标氧浓度来控制烃释放速率的方法

    公开(公告)号:US5501159A

    公开(公告)日:1996-03-26

    申请号:US283118

    申请日:1994-07-29

    Abstract: In a hydrocarbon release rate controlling method, a first chamber is provided capable of receiving successive batches of feed materials for thermal processing having widely varying energy content, heating is produced in the first chamber to cause pyrolyzing of the feed materials into fluid materials, a second chamber is provided communicating with the first chamber and capable of receiving the fluid materials from the first chamber and communicating the fluid materials to a discharge location, heating is produced in the second chamber to cause oxidizing of the fluid materials into discharge gases reaching the discharge location, a jacketed vessel is provided defining a channel surrounding the first and second chambers containing a flow of coolant fluid through the channel, separate variable flows of primary and secondary air are respectively produced into and through the first and second chambers, the temperatures in the first and second chambers are sensed, the temperature of the coolant in the channel of the jacketed vessel is sensed, the concentration of a preselected gas in the discharge gases is sensed, and, in response to the temperatures sensed in the first and second chambers and jacketed vessel channel coolant and in response to the concentration of the preselected gas sensed in the discharge gases, the primary and secondary flows of air into the first and second chambers are controlled so as to proportion and vary the respective amounts thereof and thereby maintain the concentration of the preselected gas in the discharge gases at a preset target level corresponding with the generation of harmless discharge gases and production of carbon-free residue ash.

    Abstract translation: 在碳氢化合物释放速率控制方法中,提供第一室,其能够接收连续批次的具有广泛变化的能量含量的热处理的进料材料,在第一室中产生加热,以使进料材料热解成流体材料,第二室 室与第一室连通并且能够从第一室接收流体材料并将流体材料连通到排放位置,在第二室中产生加热,以使流体材料氧化成排放气体到达排放位置 提供了一种夹套的容器,其限定围绕第一和第二腔室的通道,其包含通过通道的冷却剂流体流,单独的一次空气和二次空气的可变流量分别产生并穿过第一和第二腔室,第一腔室中的温度 并感测到第二个室,冷却的温度 感测到夹套容器的通道中的蚂蚁,感测放电气体中预选气体的浓度,并且响应于在第一和第二室和夹套容器通道冷却剂中感测到的温度并响应于 在放电气体中感测到的预选气体,进入第一和第二室的空气的一次和二次流被控制成比例并且改变其各自的量,从而将放电气体中的预选气体的浓度保持在预设 目标水平对应于无害排放气体的产生和无碳残渣灰分的产生。

    Treatment of waste and a rotary kiln therefor
    94.
    发明授权
    Treatment of waste and a rotary kiln therefor 失效
    处理废物和回转窑

    公开(公告)号:US4993331A

    公开(公告)日:1991-02-19

    申请号:US429473

    申请日:1989-10-31

    Abstract: Method and apparatus for treating waste materials to produce aggregates wherein pellets comprised of a mixture of solids, liquid wastes and clay are dried by hot air in a dryer. The pellets are then fed to the pyrolysis zone of a rotary kiln wherein they are heated by hot gas from an oxidation zone of the kiln to drive off most of the volatile gases. Remaining volatile gases and the fixed carbon in the waste are oxidized in the oxidation zone, and the silicates in the clay are vitrified in a vitrification zone of the kiln to produce aggregates which are crushed and screened. Volatile gases given off from the pyrolysis zone are mixed with exhaust gases from the dryer to feed the burner for the vitrification zone and to supply oxygen to the oxidation zone.

    Abstract translation: 用于处理废料以生产聚集体的方法和设备,其中由固体,液体废物和粘土的混合物组成的颗粒在干燥器中用热空气干燥。 然后将颗粒进料到回转窑的热解区,其中它们被来自窑的氧化区的热气加热以驱除大部分挥发性气体。 剩余的挥发性气体和废物中的固定碳在氧化区被氧化,粘土中的硅酸盐在窑的玻璃化区中被玻璃化,以产生被压碎和筛分的聚集体。 从热解区域排出的挥发性气体与来自干燥器的废气混合以供入用于玻璃化区的燃烧器并向氧化区供应氧气。

    Solid waste disposal unit
    95.
    发明授权
    Solid waste disposal unit 失效
    固体废物处理单元

    公开(公告)号:US4934283A

    公开(公告)日:1990-06-19

    申请号:US404790

    申请日:1989-09-08

    Applicant: Paul H. Kydd

    Inventor: Paul H. Kydd

    Abstract: A solid waste disposal unit having a lower, pyrolyzing chamber and an upper, oxidizing chamber separated by a movable plate. Waste is deposited in the lower chamber. The chambers are rotated to move the plate to a first position which seals the lower chamber from the entrance of air. While the chambers continue to rotate, a pair of heaters separately heats the chambers. The waste in the lower chamber is pyrolyzed in the absence of air and gives off a combustible vapor that in turn is oxidized in the upper chamber. A plurality of venturi jets, mounted in the movable plate, mix the vapor with air as the vapor passes into the upper chamber. Additional air is introduced into the upper chamber through a rotating regenerative heat exchanger recovering heat from the exhaust gases. After the waste is thoroughly pyrolyzed into a char, the rotation of the unit is reversed causing the movable plate to rotate into a new position wherein air is permitted to enter the lower chamber to cause oxidation of the char. This oxidation process continues until the char is entirely consumed and reduced to a sterile ash. Any gaseous products produced will continue to be oxidized in both chambers.

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