Method for reducing the volume of radioactively loaded liquids, and finned body for use in the process
AssigneeSiemens Aktiengesellschaft
InventorsDietmar Erbse, Lydia Fuchs, Dietmar Bege, Horst Queiser, Siegfried Meininger
Life of this patent
Estimating the term…
Abstract
Reducing the volume of radioactively loaded liquids, particularly evaporator concentrates, by heating in a storage container up to solidification, wherein liquids are replenished for filling up the storage container. Heating takes place discontinuously in heating periods separated from each other in time. The heat is introduced directly into the container contents. Vapors produced are drawn off intermittently.
Claims16
An intermittent method of operation for reducing the volume of radioactively loaded liquids, particularly evaporator concentrates, to a solid block of residue which substantially fills a storage container, which comprises
- (a) heating radioactively loaded liquids in a storage container discontinuously in heating periods separated from each other in time by introducing the heat directly into the container contents,
- (b) intermittently drawing off generated vapors,
- (c) venting the storage container in between such times of vapor withdrawal,
- (d) replenishing the storage container with radioactively loaded liquids, and
- (e) continuing said heating, said vapor withdrawal, said venting and said replenishing to substantially fill the storage container with a solid block of residue remaining after removal of the vapors from the radioactively loaded liquids.
Method for reducing the volume of radioactively loaded liquids, particularly evaporator concentrates, which comprises heating radioactively loaded liquids in a storage container discontinuously in heating periods separated from each other in time by introducing the heat directly into the container contents, intermittently drawing off generated vapors, replenishing the storage container with radioactively loaded liquids, and continuing said heating, said vapor withdrawal and said replenishing to substantially fill the storage container with a solid block of residue remaining after removal of the vapors from the radioactively loaded liquids, and wherein the heating is accomplished via a finned body which remains in the container content.
Method for reducing the volume of radioactively loaded liquids, particularly evaporator concentrates, which comprises heating radioactively loaded liquids in a storage container discontinuously in heating periods separated from each other in time by introducing the heat directly into the container contents, intermittently drawing off generated vapors, replenishing the storage container with radioactively loaded liquids, and continuing said heating, said vapor withdrawal and said replenishing to substantially fill the storage container with a solid block of residue remaining after removal of the vapors from the radioactively loaded liquids, wherein the vapors are drawn off at time intervals in a vacuum, and venting of the storage container takes place in the pauses in between such times of vapor withdrawal, and wherein the heating is accomplished via a finned body which remains in the container.
Method for reducing the volume of radioactively loaded liquids, particularly evaporator concentrates, which comprises heating radioactively loaded liquids in a storage container discontinuously in heating periods separated from each other in time by introducing the heat directly into the container contents, intermittently drawing off generated vapors, replenishing the storage container with radioactively loaded liquids, and continuing said heating, said vapor withdrawal and said replenishing to substantially fill the storage container with a solid block of residue remaining after removal of the vapors from the radioactively loaded liquids, wherein the heating periods are controlled as a function of the electric conductivity of the container content, and wherein the heating is accomplished via a finned body which remains in the container content.
Dependencies are inferred from the claim text.