| 摘要 |
Liquid yellow phosphorus is filled into drums with the use of a filling nozzle or lance. The nozzle or lance substantially comprises a control tube provided with a plurality of perforations and connected at its top end portion to a cylindrical member which carries an eye for the connection of a control unit via a connecting piece of tubing. A nozzle supporting tube which concentrically surrounds the control tube and is provided in its upper part with a warm water inlet, carries at its bottom end a control cylinder with a control piston having a drilling running through it. The control piston is fixed to a nozzle tube via a conical bottom. At its top end, the nozzle supporting tube has a gland with a supporting flange, the nozzle tube concentrically surrounding the nozzle supporting tube so as to form an annular chamber receiving the yellow phosphorus. A heating jacket is disposed around the nozzle tube so as to form a heating chamber, the heating jacket having passed through it in its upper part firstly a double tube delivering warm water to the heating chamber and delivering yellow phosphorus to the annular chamber, and secondly a water outlet. A supporting flange is secured to the heating jacket, and a spring-loaded water outlet valve is provided in the bottom end portion of the control piston. |
