Thermomechanical decontamination system and method for infectious waste treatment

    公开(公告)号:US10259022B2

    公开(公告)日:2019-04-16

    申请号:US15221886

    申请日:2016-07-28

    申请人: John R Self

    发明人: John R Self

    摘要: An infectious waste treatment system and method for decontaminating infectious waste employ a thermal friction extruder in which first and second interleaved counter-rotatable augers include reverse pitch flight sections that urge waste material in a direction opposite to that of the flow stream and into engagement with the back sides of friction plates. This increases the amount of heat generated by the extruder. The reverse pitch flight sections can be selectively replaced with forward pitch flight sections to control the amount of heat imparted to the waste material by the friction plates.

    METHOD AND APPARATUS FOR CONVERTING INFECTIOUS WASTE MATERIAL INTO MATERIAL USABLE AS FUEL FOR A CEMENT KILN

    公开(公告)号:US20180297037A1

    公开(公告)日:2018-10-18

    申请号:US15487250

    申请日:2017-04-13

    申请人: John R. Self

    发明人: John R. Self

    摘要: An infectious waste treatment system and method for decontaminating infectious waste employ a thermal friction extruder (20) in which first and second interleaved counter-rotatable augers (40, 42) driven by a variable speed motor include reverse pitch flight sections (62, 72) that urge waste material in a direction opposite to that of the flow stream and into engagement with the back sides of friction plates (50, 52). This increases the amount of heat generated by the extruder. The reverse pitch flight sections can be selectively replaced with forward pitch flight sections to control the amount of heat imparted to the waste material by the friction plates. The size of gaps between the friction plates and the augers is selected along with the motor speed to impart enough heat and friction to the waste material, such that the resulting processed material has an increased BTU value, a consistency and aggregate size such that it can readily be injected as fuel into a cement kiln's fuel injection system, thereby completely disposing of the material.

    Thermal desorption system for decontaminating materials
    3.
    发明授权
    Thermal desorption system for decontaminating materials 失效
    用于净化材料的热解吸系统

    公开(公告)号:US5710360A

    公开(公告)日:1998-01-20

    申请号:US728429

    申请日:1996-10-09

    摘要: A thermal desorption system for treating and/or removing contaminants from various types of materials employs an induction tube furnace to heat the material to a high enough temperature to completely desorb it. The induction tube furnace includes a metal or metal alloy susceptor tube for containing the material to be treated and at least one induction coil surrounding the tube for heating the same. The susceptor tube is formed from a metal or metal alloy, such as a nickel based alloy, having a very high melting temperature which will allow it to be heated by the induction coil to temperatures as high as 1800.degree. F. The metal or metal alloy also has a relatively high electrical resistance to permit efficient magnetic coupling of energy from the induction coil to the tube, as well as a relatively high thermal conductivity to provide efficient heat transfer from the tube to the material to be treated. Depending upon the nature of the material to be treated, an auger type conveyor can be employed to move the material through the susceptor tube at a controlled rate of speed, which in turn controls the residence time of the material in the tube, and therefore the temperature to which it is heated. An inert atmosphere is maintained within the tube to prevent combustion of the material, and the vaporized contaminants exiting the susceptor tube are condensed for recovery and recycling, while the desorbed material in the form of char is removed for disposal in a conventional manner.

    摘要翻译: 用于处理和/或从各种类型的材料中去除污染物的热解吸系统采用感应管式炉将材料加热至足够高的温度以完全解吸。 感应管炉包括用于容纳待处理材料的金属或金属合金基座管和围绕管加热该材料的至少一个感应线圈。 基座管由诸如镍基合金的金属或金属合金形成,具有非常高的熔化温度,这将使其被感应线圈加热至高达1800°F的温度。金属或金属合金 还具有相对高的电阻以允许从感应线圈到管的能量的有效磁耦合,以及相对高的导热性,以提供从管到被处理材料的有效热传递。 根据待处理材料的性质,螺旋式输送机可以用来以受控的速度移动材料通过基座管,这又控制了材料在管中的停留时间,因此, 加热的温度。 在管内保持惰性气氛以防止材料燃烧,并且离开基座管的蒸发的污染物被冷凝用于回收和再循环,同时以常规方式除去炭的形式的解吸材料以便处置。

    THERMOMECHANICAL DECONTAMINATION SYSTEM AND METHOD FOR INFECTIOUS WASTE TREATMENT
    4.
    发明申请
    THERMOMECHANICAL DECONTAMINATION SYSTEM AND METHOD FOR INFECTIOUS WASTE TREATMENT 审中-公开
    用于感染性废物处理的热力学去除系统和方法

    公开(公告)号:US20170028451A1

    公开(公告)日:2017-02-02

    申请号:US15221886

    申请日:2016-07-28

    申请人: John R. Self

    发明人: John R. Self

    摘要: An infectious waste treatment system and method for decontaminating infectious waste employ a thermal friction extruder (20) in which first and second interleaved counter-rotatable augers (40, 42) include reverse pitch flight sections (62, 72) that urge waste material in a direction opposite to that of the flow stream and into engagement with the back sides of friction plates (50, 52). This increases the amount of heat generated by the extruder. The reverse pitch flight sections can be selectively replaced with forward pitch flight sections to control the amount of heat imparted to the waste material by the friction plates.

    摘要翻译: 传染性废物处理系统和用于净化感染性废物的方法使用热摩擦挤出机(20),其中第一和第二交错的反向旋转螺旋推运器(40,42)包括反向螺距螺旋部分(62,72),其将废料材料 方向与流动流的方向相反并且与摩擦板(50,52)的后侧接合。 这增加了挤出机产生的热量。 可以用前倾螺距部分选择性地替换反倾斜螺旋部分,以控制由摩擦板赋予废料的热量。