China independently develops the world's first 5.5T cryogenic superconducting magnetic separator

Recently, the world’s first 5.5T zero volatility low-temperature superconducting magnetic separator with independent intellectual property rights passed the technical appraisal organized by the Science and Technology Department of Shandong Province. At this point, China’s magnetic separator market was monopolized by foreign countries.

Domestic paper and ceramic white no foreign producers, mainly because the production of their raw materials kaolin mention pure enough, and the magnetic separator can be thought kaolin ore and other raw material purification whitening.

In 2009, the transformation of the Beijing Electronic Negative Collider was completed. Researchers at the Institute of High Energy Physics, Chinese Academy of Sciences have fully mastered the technology of cryogenic superconducting magnets. Impurity domestic demand for kaolin minerals, in October 2010, in cooperation with Shandong Weifang High Energy Superconducting Magnet Technology Co., Ltd. Sony to jointly develop a new type of low-temperature superconducting magnetic separator.

CAS High Energy researcher Zhuzi An introduction, research group in the superconducting state using the characteristic resistance of the wire is zero, using a large electric current through the superconducting coil way, produce a strong magnetic field, the superconducting device can not only detection of a weak magnetic metal ores in mining Substances can also separate weak magnetic impurities from non-metallic minerals. The energy consumption of the entire system is only 10% of that of ordinary electromagnetic equipment with the same capacity.

Previously, high-grade magnetic separators were only produced in the United States and a few other developed countries. The imported products are not only expensive but also require about 20 million yuan each, and the annual maintenance and service fees are very high. In contrast, China's development of 5.5T zero volatile low-temperature superconducting magnetic separator use a small cryocooler so that liquid helium can be achieved in a closed loop system, the use of liquid helium 3 years without supplements, greatly reducing the helium Consumption, reducing the operating costs of the manufacturers.

According to the appraisal committee of Zhou Yuan, the academician of the Chinese Academy of Sciences, this magnetic separator is the first of its kind at home and abroad. The technical performance of the machine has reached the international advanced level.

It is reported that the development of the 5.5T zero-volatile low-temperature superconducting magnetic separator has attracted the attention of the Ministry of Science and Technology, and the project has received follow-up support from the National Twelfth Five-Year National Science and Technology Support Program.