Method for drying sludge
    21.
    发明授权
    Method for drying sludge 失效
    污泥干燥方法

    公开(公告)号:US4970803A

    公开(公告)日:1990-11-20

    申请号:US459480

    申请日:1990-01-02

    申请人: Karl Keller

    发明人: Karl Keller

    CPC分类号: F26B3/084 F26B21/04 F26B3/088

    摘要: A sand layer is fluidized by a gas stream or current in a fluidized bed dryer and indirectly heated by immersed stationary heat-exchanger tubes. The sludge to be dried is continuously fed under pressure in a pumpable conditon from above onto the fluidized sand layer. The sludge is coagulated in the fluidized sand layer to form sludge lumps. Here, the sludge lumps are successively dried from the surface down to the core thereof, and the already dried layers of the sludge lumps are successively abraded by the fluidized sand, whereby the sludge lumps are entirely comminuted and the dry matter thereof is pulverized to form dust. This product dust is continuously discharged together with the exhaust-gas stream from the fluidized bed dryer and continuously separated as a product from the exhaust-gas stream. The gas stream or current freed from dust is partially recycled in a closed circuit back to the fluidized bed dryer for fluidization of the sand layer.

    摘要翻译: 砂层通过流化床干燥器中的气流或电流流化,并通过浸入的固定式热交换器管间接加热。 将待干燥的污泥在压力下从上方连续地供给到可泵送的条件下到流化砂层上。 污泥在流化砂层中凝结形成污泥块。 这里,将污泥块从表面向下干燥至其核心,并且已经干燥的污泥块层被流化砂相继磨损,从而使污泥块完全粉碎,将其干物质粉碎形成 灰尘。 该产品粉尘与来自流化床干燥器的废气流一起连续排出,并与废气流一起作为产物连续分离。 排出灰尘的气流或电流在封闭回路中被部分回收到流化床干燥器中以使砂层流化。

    Flow leading floor for whirl chutes
    23.
    发明授权
    Flow leading floor for whirl chutes 失效
    旋转滑道的前沿楼层

    公开(公告)号:US4255072A

    公开(公告)日:1981-03-10

    申请号:US929320

    申请日:1978-07-31

    CPC分类号: B01J8/44

    摘要: The floor in a whirl (i.e. fluidizing) chute for treating solid particles in a vortex of gas advancing in longitudinal direction of the chute comprises a grate for introducing into the chute the whirling gas to impart to the particles a whirling motion in vertical direction and to advance the whirling particles in longitudinal direction, and at least one layer of filling bodies arranged on the grate in the direction of advance of the particles whereby the size of the filling bodies and the height of the layer is adjusted according to desired whirling speed of the treated particles.

    摘要翻译: 用于处理在滑槽纵向方向上推进的气体涡流中的固体颗粒的旋转(即流化)滑槽的地板包括用于将滑动气体引入滑槽的格栅,以使颗粒在垂直方向上产生旋转运动,并且 沿长度方向推进旋转颗粒,以及至​​少一层填充体,其沿着颗粒前进方向布置在炉排上,由此根据所需的旋转速度来调节填充体的尺寸和层的高度 处理过的颗粒。

    Dryers and method of operation
    25.
    发明授权
    Dryers and method of operation 失效
    干燥剂和操作方法

    公开(公告)号:US3662474A

    公开(公告)日:1972-05-16

    申请号:US3662474D

    申请日:1970-08-24

    申请人: CALMIC ENG CO LTD

    摘要: There is disclosed a method and apparatus for drying materials such as pastes and slurries in which the material is coated onto discrete bodies which are fluidized by an upward stream of gaseous drying agent, the dried material being continuously removed from the fluidized bodies by impacts arising from the motion of the fluidized bodies.

    摘要翻译: 公开了一种用于干燥诸如浆料和浆料的材料的方法和装置,其中将材料涂覆到由向上的气态干燥剂流流化的离散体上,干燥的材料通过由 流化体的运动。