FUEL ELEMENT FRAGMENT SCREENING DEVICE FOR HIGH-TEMPERATURE GAS-COOLED REACTOR NUCLEAR POWER FUEL LOADING AND UNLOADING SYSTEM

• Main Authors: DONG, Lei, HAN, Chuangao, WU, Shougui, LIU, Junfeng, YAO, Yao, KANG, Zhen, MA, Xiaolong, WANG, Yi, ZHANG, Ruixiang, LING, Tongtong, HU, Yang, GAO, Mei, LI, Changhai
• Format: Patent
• Language: Chinese; English; French
• Published: 29.08.2024
• Subjects: NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL; PERFORMING OPERATIONS; PHYSICS; SEPARATING SOLIDS FROM SOLIDS; SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS; SORTING; TRANSPORTING

A fuel element fragment screening device for a high-temperature gas-cooled reactor nuclear power fuel loading and unloading system, the device comprising a box body, a spiral screening pipe, a fuel ball inlet, a fuel ball outlet and a waste outlet, wherein the box body is arranged on an inlet pipe of a flow-blocking device, the fuel ball inlet is arranged at the top of the box body, and the fuel ball outlet and the waste outlet are arranged at the bottom of the box body; and the spiral screening pipe is arranged in the box body between the fuel ball inlet and the fuel ball outlet, and is in an inclined state, and the waste outlet is located below the spiral screening pipe. In the present application, during feeding, after fuel balls, fuel ball fragments and dust mixtures pass through the device, the device can completely separate the intact fuel balls from the fuel ball fragments, graphite dust and graphite ball fragments, thereby effectively preventing fragments and dust from entering the flow-blocking devic