FILTERING PLANT FOR A REACTOR FOR TRANSFORMATION OF UF INTO URANIUM OXIDE Russian patent published in 2004 - IPC

FIELD: filtering plant for the reactive gas a coming out of reactor.

SUBSTANCE: the invention is dealt with a filtering plant for the chemically active gas, coming out of a reactor with a fluidized bed for transformation of UF₆ uranium hexafluoride in uranium oxide. The installation plant contains the first filtering means and the second filtering means. The first filtering means are made with a capability of automatic blow-through, allow the chemically active gases to pass through, and detain the intermediate powdered compound UO₂F₂ , formed at transformation. The second filtering means are used below on the stream in respect to the first filtering means. They allow the chemically active gas to pass through to reactive gas and detain_{compound UO2F2 , in the case of a leakage caused by a working defect of the first filtering means. The first filtering means are divided into some separate sectors. The second filtering means are made with exclusion of a capability for a backward blow-through and are also divided into some separate sectors in compliance with the number of the sectors of the first filtering means. The installation plant additionally contains a mean to control the presence of compound UO2F2 delayed by the second filtering means and a mean for pressure measurement. The first and second filtering means may be formed out of filtering candles. The invention ensures filtration of uranium compounds without leakage.}

EFFECT: the invention ensures filtration of uranium compounds without leakage.

4 cl, 2 dwg