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Comminutor for screenings, more particularly in sewage purification plant
Comminutor for screenings, more particularly in sewage purification plant
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机译：筛查委员会委员，尤其是污水净化厂的筛查专家
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839,462. Comminuting apparatus. PASSAVANT, W., PASSAVANT, U., and SCHRAMM, P., [trading as PASSAVANTWERKE]. June 29, 1956 [July 1, 1955], No. 20274/56. Class 59 A comminutor for screenings comprises stationary tools in the form of a grid-like cage forming a disintegration chamber and at least one tool in the form of a cutter, beater and grinder rotatable about an axis and mounted within the disintegration chamber so as to be pivotable about an axis eccentric to the first-mentioned axis, the shortest distance between the eccentric axis and the grid-like cage being less than the distance between the eccentric axis and at least one point on the periphery of the tool, the arrangement being such that, when the comminutor is in operation, the or each rotatable tool will move outwardly under the action of centrifugal force to comminute material between the rotatable and stationary tools. As shown, the comminutor forms part of a sewage purifying plant and comprises a single tool in the form of an overhung crankpin l which is rotatable within a cage formed of obliquely-arranged tools e. The tool l is provided with a counterweight in the form of a crankpin n, the crankpins l, n being mounted in crankshafts k, m mounted in a block j driven by a motor-driven main shaft i. The tools e are in the form of cutter bars which may be exchangeably and/or adjustably fitted or the entire cage may consist of a single casting. The crankpins l, n are in the form of triangular prisms, Fig. 3, the centres of gravity o of which are situated outside the plane p containing the main shaft i and the axes of the crankshafts k, m. The outward throw of the tool may be limited by stop members. The screenings are introduced tangentially into a chamber a in the direction of the arrow r 1 , Fig. 2, and induce a downward cyclonic eddy the formation of which is supported by a nozzle s which discharges into the chamber a in the direction of the arrow r 2 . The chamber a communicates through an opening b with an antechamber c. The pumping action of the tool l likewise induces the formation of an eddy which draws the material from the antechamber c into the disintegration chamber f. The cage is provided with a gap g, Fig. 2, to prevent ineffective circulation of the screenings. If the content of suspended sludge is particularly large, the effluent may be arranged to fall temporarily over a weir, which may be adjustable in height, into the antechamber. The comminuted screenings escape through the gap between the bars e into a diffuser d to be carried away in the direction of the arrow r 3 , Fig. 2.
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机译：839,462。粉碎设备。 W. PASSAVANT，U。PASSAVANT和P. SCHRAMM，[交易方式为PASSAVANTWERKE]。 1956年6月29日[1955年7月1日]，编号20274/56。第59类：筛分粉碎机，包括形成崩解室的网格状笼子形式的固定工具，以及至少一个可绕轴旋转并安装在崩解室内的切碎机，打浆机和粉碎机形式的工具，以便所述偏心轴可绕着相对于所述轴偏心的轴枢转，所述偏心轴与所述栅格状笼之间的最短距离小于所述偏心轴与所述工具的外围上的至少一个点之间的距离。这样，当粉碎机工作时，该或每个可旋转工具将在离心力的作用下向外移动，以粉碎可旋转和固定工具之间的物料。如图所示，粉碎机构成污水净化设备的一部分，并且包括悬垂曲柄销1形式的单个工具，该工具可以在由倾斜布置的工具e形成的笼中旋转。工具l设有曲柄销n形式的配重，曲柄销l，n安装在曲轴k，m中，该曲轴k，m安装在由电动机主轴i驱动的块j中。工具e为切刀杆的形式，其可以可互换地和/或可调节地安装，或者整个保持架可以由单个铸件组成。曲柄销l，n为图3所示的三棱柱形，其重心o位于包含主轴i和曲柄k，m轴的平面p之外。工具的向外抛出可能受到止动构件的限制。滤网沿图2中箭头r 1的方向切向引入腔室a，并引起向下的旋风涡流，旋涡的形成由喷嘴s支撑，该喷嘴沿箭头方向排放到腔室a中。 2。腔室a通过开口b与前室c连通。工具l的泵送作用同样引起涡流的形成，该涡流将材料从前室c吸入到崩解室f中。笼子上设有一个间隙g（图2），以防止滤网无效循环。如果悬浮污泥的含量特别大，则废水可能会暂时掉落到堰上，堰的高度可以调节，并进入前室。粉碎的筛子通过条形物e之间的缝隙逸出进入扩散器d，并沿箭头r 3的方向被带走，图2。
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