Plasma torch and plasma furnace for disposing radioactive waste

By movably setting the cathode rod within the connection of the anode tube and adjusting the spacing, combined with the wall-mounted airflow within the duct, the problems of radioactive leakage and nuclide volatilization during cathode replacement are solved, achieving higher safety and equipment durability.

CN224054475UActive Publication Date: 2026-03-27CHENGDU PLASMAJET SCI & TECH
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Patent Information

Application Number
CN202520534696.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-27
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

During the handling of radioactive waste, there is a risk of radioactive leakage when the cathode is replaced, and some harmful nuclides can easily volatilize into the flue gas, affecting safety.

Method used

A connecting part is provided at the end of the anode tube, and the cathode rod is movably installed in the connecting part. The distance between the cathode rod and the anode material is adjusted by the driving component. Combined with the airflow introduced into the duct, a wall-mounted wind is formed to avoid radioactive leakage and radionuclide volatilization.

Benefits of technology

This effectively avoids radioactive leakage caused by cathode replacement, improves the safety of the processing and the durability of the equipment, and reduces the risk of volatilization of harmful nuclides.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model provides a plasma torch and a plasma furnace for disposing radioactive wastes, and aims to solve the technical problem of radioactive leakage when a cathode is replaced midway. The plasma torch comprises an anode tube which is internally provided with an anode material, one end of the anode tube is a nozzle, the other end of the anode tube is a connecting part, and the connecting part is provided with a working gas channel; one end of the cathode rod is movably arranged in the connecting part, the cathode rod is made of a cathode material, and a gap exists between the end part of the cathode rod and the anode material; the driving end of the driving part is in power connection with the cathode rod, and the driving part is used for driving the cathode rod to move into the anode tube; the cathode of the plasma power supply is electrically connected with the cathode rod, and the anode is electrically connected with the anode material; and the output end of the working gas supply device is communicated with the working gas channel. According to the plasma torch, the cathode rod is made to move in the connecting part through the driving piece, the distance between the cathode rod and the anode material is reduced, and therefore radioactive leakage caused by cathode material replacement is avoided.
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