Self-unloading horizontal na 131 iProduction device

Abstract

The invention provides a self-discharging horizontal type Na131I production device. The self-discharging horizontal type Na131I production device comprises a rack, a distiller, a catcher, a tail gas monitor, a vacuum pump, a lifting platform and a controller, wherein the distiller is placed on the rack and fixedly connected with the rack, the distiller, the catcher, the tail gas monitor and the vacuum pump are sequentially connected through a pipeline, the lifting platform is placed below the distiller, and the controller is electrically connected with the distiller, the catcher, the vacuum pump and the lifting platform. The self-discharging horizontal type Na131I production device can efficiently distil I-131 from molten TeO2 which slowly flows so as to produce Na131I products, and has automatic distillation residue collection and tail gas online monitoring functions. The self-discharging horizontal type Na131I production device can produce the Na131I products on a large scale, greatly saves operation space and reduces the amount of radioactive solid waste, and furthermore is compact in structure, suitable for Na131I dry distillation production in a shield work box small in valid operation space, and good in operation stability, convenience and safety.

Description

technical field [0001] The invention belongs to the technical field of radioisotope preparation, in particular to a self-unloading horizontal Na 131 I production device. Background technique [0002] The main production method of radioactive iodine-131 is tellurium dioxide (TeO 2 ) and from 235 Extracted from the lobes mixture of U. At present, sodium iodide (Na 131 I) Drugs are mainly derived from TeO irradiated from reactors by dry distillation 2 extraction, while the wet distillation process (including 235 The process of extracting iodine-131 from the split mixture of U) was eliminated due to defects such as low distillation efficiency, complex process, high cost, large amount of waste, and easy pollution. The process of producing iodine-131 by dry distillation is roughly: the activated TeO 2 Pour it into a quartz glass container and place it directly in a distillation furnace for distillation at high temperature (about 750°C). Radioactive iodine-131 evaporates fro...

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Problems solved by technology

[0004] In order to overcome the relatively small unit capacity, low production efficiency, large amount of radioactive solid waste and inconvenient storage management of the horizontal iodine-131 retort production device in the prior art, TeO deposited at the bottom of the horizontal quartz tube after a long period of use 2 After cooling, it will stick to the quartz boat and affect the operation of replacing the quartz boat, and the radioactive iodine-131 vapor treatment device has a large volume, low radiation resistance, difficult operation, and does not have the function of real-time monitoring of the exhaust gas. The present invention provides a A self-unloading horizontal Na 131 I production device

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