China Instrument Network Instrument Research and Development At 10:17 on December 23, China's first lead-based nuclear reactor zero-power device, "Rising Star II," first realized criticality in the Atomic Energy Institute, which is China's lead-based heavy metal cooling fast neutron reactor The key technological breakthroughs achieved in innovation and R&D have marked another major node in the completion of China's Accelerator-Driven Subcritical System (ADS), and it also indicates that China has reached the international advanced level in the research and development of new-generation zero-power devices for nuclear reactors. The device was successfully developed by the Institute of Atomic Energy and the Institute of Modern Physics of the Chinese Academy of Sciences under the support of the Chinese Academy of Sciences' strategic pilot technology project.
Zhan Wenlong, Academician of the Chinese Academy of Sciences, and Xu Fanjiang, Deputy Director of the Major Task Force of the Chinese Academy of Sciences; Xu Hushan, Deputy Director of the Institute of Modern Physics, Chinese Academy of Sciences; Tian Jiashu, Deputy Chief Engineer of the China Nuclear Power Group; Director of the Ministry of Science and Technology and Information Technology; Academician Yan Keqiang, Academician Xu Wei, Institute of Atomic Energy Chang Wangang, deputy chief engineer Zhang Donghui, director of the Science and Technology Committee Ke Guotu, and consultant Zhao Zhixiang, experts and technicians from the Chinese Academy of Sciences, the Institute of Modern Physics, and the Atomic Energy Institute witnessed the first critical process at the scene.
The ADS transmutation system can transform long-lived, high-level nuclear waste into a short-lived, low-level nuclear waste, and at the same time reduce the volume. It is of great significance for solving the problem of “safe disposal of nuclear wasteâ€. At present, there is no international application of ADS transmutation system engineering. As a precedent, the device will provide key experimental data for the engineering research of the ADS transmutation system. China's long-term continuous ADS research is a strategic move under the international nuclear energy development as a responsible large developing country to handle advance disposal of nuclear waste.
China's ADS research has undergone three major stages. The first phase began in 1997, the second phase began in 2011, and the third phase began in 2015. "Rising Star II" is an important achievement of the second phase of ADS R&D. Previously, the zero-power device "Rising Star I" was successfully developed in the Institute of Atomic Energy in July 2005 under the support of the National 973 Program and became the reference device for the AIA's experimental research conducted by the International Atomic Energy Agency.
The “Star-Star II†device adopts the “double-core†structure of water reactors and lead stacks innovatively. Through flexible control system selection, dual cores can be quickly started separately to achieve dual functions of benchmarking and engineering verification. Ensure the reliability and accuracy of monitoring technology and measurement data. The device is a multi-functional reactor physics comprehensive experiment research platform with solid uranium rods with different enrichment degrees as nuclear fuel, and water or lead as medium. It has inherent safety, flexible core variability, operational control visibility, and measurement. Accuracy and other characteristics.
After the completion of the “Rising Star II†device, it can be used to carry out series of ADS reactor physical static and dynamic parameter measurement experiments, stack-target coupling characteristics experiments, and reactive supervision and measurement experiments. It is a future ADS system engineering design program and database. Benchmarking platform, measurement technology test and verification platform, and researcher education and training platform.
(Original title: China's first lead-based ADS nuclear reactor zero-power device reaches criticality)
The machine can feed powder or granule into twin cone container through vacuum transmission or manual, With continuous rotation of container, material will make complex impacting motion in the container and reachto uniform mixing. The machine adopt outer-inner rotation and grain of powder is uniform. Its mixing barrel can be tilted freely at the angle of degrees for discharging and cleaning purpose. Energy saving, easy to operate, low labor strengh, high work efficiency.
Double Cone Mixer,Two-Dimension Mixer,Crushing Machine
Changzhou Jiafa Granulating Drying Equipment Co.,Ltd , https://www.jf-drying.com