Superconducting iron separator
applied in major national economy area such as port, coal transporting, thermal power generation, building material industry and papermaking industry.
In current days, there are a dozen medium and large coal transporting ports and hundreds of thermal power generations, whose coal need to remove harmful iron impurities such as unexploded detonator and wires. However, the widely used electromagnetic separator can only remove larger iron impurities, while unavailable to those tiny ones like detonator and wires. Thus accidents causing by those tiny ones occurs frequently. On the other hand, the electromagnetic separator is great in weight and high consumption. But when the superconducting iron separator is working, its superconducting coil resistance is zero, a multi-strong magnetic field is generated when the current flows through the superconducting coil. In the multi-strong magnetic field, the central magnetic field can reaches 3T. The rated height is 550mm above the ground where magnetic field density can get more than 400Gs.It can available to remove those tiny iron purities(detonators, wires, ≥20g), and effectively protect the equipment. For those conditions stated above, our company began to research low temperature superconducting iron separator of zero volatilization teamed with Chinese Academy of Sciences Institute of High Energy (IHEP) in June, 2006.
Passed the technical appraisement of Shandong Science and Technology Agency on November 2nd, 2008, the project fills the domestic blank with independent intellectual property rights. It is the first China’s large superconducting iron separator used in industry whose performance reaches the international level. Through nearly two years’ smooth running in Rizhao port, it passed the new product appraisement by Shandong Economic and Trade Commission, Shandong Science and Technology Agency and China Machinery Industry Federation. This project has got seven confirmed patents, submitted three patents. It ranks as the China Machinery Industry Science and Technology Honorable Mention in 2010, and listed as Shandong Major Projects of Independent Innovation Technology in 2010, the First Grade of Shandong Science and Technology Award in 2011.
In China, the low temperature superconducting technology is firstly used in electromagnetic iron separator field. It opens a way of integrating hi-tech with traditional industry. When in operation, the superconducting iron separator is no need in cooling. No waste gas, water and oil, as well as noise will be produced. The promotion and application of the product will turn a new page in fields of coal chemical industry, port and mine industry.
Success of the first low temperature superconducting iron separator in China
Xinhua News Agency November 2nd, Beijing (reporter: Wu jingjing)
Knowing from Chinese Academy of Sciences (CAS) Institute of High Energy (IHEP), China has successfully innovated the first low temperature superconducting iron separator, which marked China is capable of applying that technology into industry.
Experts group of Technical institute of physics and chemistry of the Chinese academy of sciences, headed by Zhou Yuan, appraised the low temperature superconducting iron separator teamed with Chinese Academy of Sciences (CAS) Institute of High Energy (IHEP) and Shandong Huate magnet technology Co., Ltd. that reached the international level and filled the domestic blank. This will surely break the situation of importing superconducting magnets from the America.
The key component of superconducting iron separator is described as the low temperature superconducting magnet. It is the superconducting technology using in BES which grasped by Chinese Academy of Sciences (CAS) Institute of High Energy (IHEP). It is another success after building China’s largest monomer superconducting magnetic iron. This superconducting magnet features in caliber(0.93m), magnetic field density(5.6T), central magnetic field density(3T), energy storage(3.4J). The giant magnetic field, generated from the condition stated above, can remove the iron impurities in coal. In superconducting situation(-269℃), the resistance of coil is zero. A giant magnetic field is generated when heavy current flows through the superconducting coil. It has unparalleled benefits of high magnetic field density, large magnetic field gradient, strong capacity of absorbing iron, lower weight and energy consumption and environment friendly.
The success of low temperature superconducting iron separator once again shows that the national great science engineering is the cradle of technological innovation; and also provide experience for researching 3T superconducting MRI.