德国Knlka公司设计制造了一种螺旋式旧砂再生机。该装置充分利用了螺旋振动垂直输送原理。能以冷、热两种方式高效率地再生铸造车间的油脂砂、树脂砂、水玻璃砂以及粘土砂。不需旧砂预破碎和磁选装置,减少了动能消耗量和设备投资。再生机包括联有驱动装置的机架、破碎砂团和金属及杂质分离之用途的内螺旋和将破碎过筛的砂子往上输送的外螺旋组成的钢结构、无级调速的摇摆驱动器以及防止振动的抗振底座等部分(见图)。工作时,旧砂团块被加入后,在该装置摇摆驱动器产生的上、下方向振动和逆时针的扭摆作用下,内螺旋使得旧砂团块相互摩擦、碰撞,使得粘结剂与砂粒分开,而金属块和其它杂质则由内部螺旋自动分离出 Germany Knlka company designed and manufactured a screw-type sand recycling machine. The device makes full use of the spiral vibration vertical transport principle. It can efficiently regenerate the grease sand, resin sand, sodium silicate sand and clay sand in foundry workshop by both cold and hot methods. No pre-crushing of sand and magnetic separation device, reducing the kinetic energy consumption and equipment investment. The regenerator comprises a steel frame connected with a driving machine frame, an internal spiral for crushing sand and metal and impurities separation purposes and an external spiral for conveying the crushed and sifted sand upward, a stepless speed regulation swing actuator and Vibration-proof anti-vibration base and other parts (see photo). In operation, after the old grit is added, the internal spiral causes the old grit to rub against each other and collide with each other so as to separate the adhesive from the grit under the action of the upper and lower vibrations generated by the device’s swing actuator and the counterclockwise twisting action , While metal blocks and other impurities are automatically separated by the internal spiral