| 摘要 |
FIELD: production of plutonium and its compounds. ^ SUBSTANCE: the invention is pertaining to the field of production of plutonium and its compounds. The device is intended for the continuous transformation of plutonium oxalate into plutonium oxide by means of its drying with the following calcination. The device represents a cylindrical form kiln equipped along its longitudinal horizontal axis with a feed screw of a screw auger type. The feed screw at its rotation around of the horizontal axis ensures transportation of a product subjected to the thermal treatment from the feed zone of the kiln where it was subjected to a drying, to the second zone where it is subjected to a calcining. The furnace body has a window for plutonium oxalate charging into the body from the feed zone side, a window for plutonium oxide unloading from the body on the other end from the second zone side, for oxygen blowing into the internal space of the kiln and for withdrawal of the gases from the kiln. Within the limits of the body thickness there are cavities with a capability to locate in them with access from the front side of a glove chamber, tubular heaters. The heaters represent at least one short tubular heater and at least one long tubular heater. The short tubular heater is intended to provide a fractional drying of plutonium oxalate in the feed zone of the kiln, and the long tubular heater is intended to provide simultaneously the fractional drying of plutonium oxalate in the feed zone of the kiln and calcinations of plutonium oxalate in the second zone of the kiln. Besides the furnace body contains a means for withdrawal of gases from the kiln through a hole for the gases withdrawal, with keeping rarefaction in it, and also a unit of filtration. The unit of filtration contains a battery composed of the filtrating plugs mounted in parallel to each other and intended for removal of dust of solid particles caught by a gases flow. Each filtrating plug contains a rigid filter medium and is linked with a nozzle means of cleanout of the indicated rigid filtering medium from a stocked deposit of the particles. ^ EFFECT: the invention ensures continuous transformation of plutonium oxalate into plutonium oxide. ^ 6 cl, 2 dwg |
