Abstract: A vol-oxidizer for spent nuclear fuel is provided. The vol-oxidizer includes a reactor module in which the spent nuclear fuel is put and oxidized; a heating module to heat the reactor module to a high temperature; a utility module to control an inner state of the reactor module, being connected with the reactor module; a support module to support the heating module and the reactor module; a drive module to supply a driving force for transferring the spent nuclear fuel within the reactor module; a valve module to control discharge of the spent nuclear fuel being oxidized in the reactor module; and a collecting container module to collect the spent nuclear fuel being oxidized and discharged from the reactor module. The respective modules are assembled and disassembled with respect to one another.

Abstract: A horizontal type slitting apparatus for decladding of a fuel rod is disclosed. The apparatus optionally includes a plurality of rollers configured to receive, extrude, and transfer a fuel rod, a roller fixing portion configured to fix the rollers by a hydraulic pressure, a slitting portion configured to slit cladding tube of the fuel rod, and a slitter fixing portion configured to fix the slitter portion by a hydraulic pressure.

Abstract: An anti-expansion and anti-seismic pipe fitting. The pipe fitting includes a body into which end portions of plural pipes are inserted. The body has a receiving jaw formed on the inner circumferential surface of an end portion, into which each of the pipe is inserted such that an inner diameter of the body is enlarged. A packing is arranged on the receiving jaw. A cap is coupled to the end portion of the body such that the packing and the pressurizing member are mounted inside the cap. Buffering means are included for absorbing expansion and contraction of the pipe. The pipe fitting can absorb deformation due to the expansion or contraction of the pipes. Moreover, because all of the pipes and the pipe fitting have the same inner diameter, the fluid flowing inside the pipes maintains uniform pressure, and hence, the fluid can flow smoothly inside the pipes.

Abstract: A vol-oxidizer for spent nuclear fuel is provided. The vol-oxidizer includes a reactor module in which the spent nuclear fuel is put and oxidized; a heating module to heat the reactor module to a high temperature; a utility module to control an inner state of the reactor module, being connected with the reactor module; a support module to support the heating module and the reactor module; a drive module to supply a driving force for transferring the spent nuclear fuel within the reactor module; a valve module to control discharge of the spent nuclear fuel being oxidized in the reactor module; and a collecting container module to collect the spent nuclear fuel being oxidized and discharged from the reactor module. The respective modules are assembled and disassembled with respect to one another.