Overpressure machine for compaction and volume reduction of nuclear power radioactive solid waste and waste resin

Abstract

The invention discloses an overpressure machine for compaction and volume reduction of nuclear power radioactive solid waste and waste resin. The overpressure machine comprises a lower cross beam, an upper cross beam and stand columns, a main hydraulic cylinder is installed at the top of the upper cross beam, a through hole is formed in the center of a middle cross beam, a rotating sleeve is arranged at the position, located at the through hole, of the top of the middle cross beam, and a square inner cavity is formed in the rotating sleeve. The rotating sleeve is rotationally connected with the middle cross beam. A piston rod of the main hydraulic cylinder penetrates through the rotating sleeve and the through hole, a square stopping block is arranged on the piston rod of the main hydraulic cylinder, the rotating sleeve is driven by an adjusting motor to rotate, and the middle cross beam is driven by an auxiliary cylinder. The main hydraulic cylinder and the auxiliary cylinder of the overpressure machine work cooperatively, and pre-pressing and deep pressing are carried out on a steel drum. During pre-pressing, the main hydraulic cylinder drives a pressing head, the auxiliary cylinder drives the middle cross beam, and meanwhile the center and the edge of the steel drum are pre-pressed; and then deep pressing is conducted, the cross beams still keep pressure on the edge of the steel drum, the main hydraulic cylinder continues to drive the pressing head to deeply press the middle of the steel drum, it is guaranteed that the steel drum is good in compression uniformity, and the main hydraulic cylinder does not need to output large pressure.

Description

technical field [0001] The invention relates to the technical field of radioactive solid waste treatment, more specifically, it relates to an overpressure machine for compacting and reducing the volume of nuclear power radioactive solid waste and waste resin. Background technique [0002] With the development of the nuclear industry, a large amount of radioactive waste will be produced for national defense and civilian use. After the waste liquid is evaporated into solid waste, it will be stored together with the steel drums containing these radioactive solid waste. However, the storage devices used to store these radioactive wastes are expensive and have a small space. If these steel drums are directly put into a special storage room for temporary storage, the space utilization rate is low, effective storage cannot be achieved, and additional storage costs will be increased. Therefore, it is necessary to use an overpressure machine to compact the steel drum and the solid wa...

AI Technical Summary

Problems solved by technology

Under the same output power of the superpressor, a smaller pressure head can exert greater pressure on the steel drum, and it is easier to compact the steel drum; but the uniformity of the compaction of this superpressor is reduced, that is The center of the barrel is pressed deeper, while the edge is pressed shallower

This is not only unfavorable for the neat stacking of the compressed steel drums, but also may cause the indenter to be wrapped by the steel drum and get stuck and cannot be pulled out

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