Jackson D.D.,Quantum Engineering Design, Inc.
IEEE Transactions on Magnetics
Processing China Clay to increase its brightness is commercially important for the ceramics and paper industries. Quantum Design, Inc. has developed a high throughput conduction-cooled superconducting magnetic separation system which operates at 6 Tesla with a 10% uniformity over 406 mm. This long uniformity range, along with its 203 mm diameter bore and high magnetic field result in a single system capable of processing 10,000-15,000 tonnes of clay per year. This superconducting magnet is maintained at low temperature using a variable frequency driven Gifford-McMahon refrigerator, which dramatically reduces operating costs compared to a liquid helium cooled magnet (40 to cool down at 0.10/kWhr). Furthermore, the small footprint of the system combined with the inexpensive operating costs allow for a modular design for systems to be combined specific to the needs of the China Clay mining facility. Testing has been carried out using various types of China Clay, also known as kaolin, from three different mines. Typical results show a reduction in Fe2O 3 by over 60%. In particular, before processing, one sample contained 0.85 wt% Fe2O3 and a fired brightness of 88%. After processing in the Quantum Design SHGMS (Superconducting High-Gradient Magnetic Separator), the Fe2 O3 content was reduced by 65% to 0.29 wt%, and the fired brightness increased to 92.5%, resulting in a three-fold increase in the value of the clay. © 2013 IEEE. Source
Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase II | Award Amount: 3.15M | Year: 2015
Subsequent Phase II Proposal, extension of Phase II contract N00014-11-C-0332Expansion of the Advanced Breakwater and Causeway Ultramarine System (ABACUS) research and development work accomplished under the Phase II Basic and Options 1 & 2 programs to full scale prototype systems and large scale demonstration models for both Seabasing and ship-to-shore logistics support operations. The ABACUS family of systems support a) the mitigation of waves about Sealift ships at the Seabase to enhance personnel safety during cargo transfer to ship-to-shore connectors, b) the lifting and omni-directional maneuvering of a broad range of deck cargos to enhance throughput and c) the enhancement of ABACUS components to meet multiple Seabasing mission requirements. The QED team's technical approach is based upon carefully defining the overall Seabasing ship-to-shore requirement, identifying those areas where safety issues and throughput bottlenecks occur, and developing concepts that can solve those problems. Having identified the problem areas and proposed solution, the QED team moves rapidly to design and fabricate Proof-of-Concept (PoC) demonstrators at either large-scale model or, as appropriate, full scale to test these concepts in real world operational environments.
Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase II | Award Amount: 1000.00K | Year: 2015
The Quantum Engineering Design, Inc. (QED) Mission Module Handling Device (MMHD) is designed to meet the Navys requirements of minimizing the deck point loading while lifting and omni-directionally maneuvering ISO containers and Twenty foot Equivalent Units (TEUs) aboard both the Littoral Combat Ship (LCS) Freedom and Independence class of vessel. Special attention is paid to the need for operating the MMHD within the confines of ships decks that have extremely tight overhead and lateral clearances. The design approach reflects the need for minimizing the number of personnel required to safely operate and manage the MMHD including missions where the LCS may be operating in elevated sea state conditions. The MMHD design approach enables ISO containers and flat-rack type TEUs with overhanging payloads to be safely handled at all up weights exceeding the threshold called for in the RFP. The QED - MMHD design reflects the need to minimize the weight and volume of the system for stowage aboard the LCS and the goals to meet the lowest possible life-cycle costs. The Phase I program includes a focused trade study to select the optimum means of powering the MMHD and enabling progressive technology upgrades to enhance the systems automated capabilities.
Quantum Engineering Design, Inc. | Date: 2011-09-25
A multi-well helium Dewar is provided for recirculating coolant about a cryostat probe; the Dewar includes a first well containing a first coolant reservoir, and a second well containing a second coolant reservoir. A fluid connection extends between the first and second coolant reservoirs. A low impedance conduit further connects a top end of the second well to the first well. In this regard, the Dewar at least partially contains a cryocooler within the first well and a cryostat probe within the second well. Vibrational noise is reduced by the incorporation of soft mounting components for connecting various features. A thermal shield of the Dewar can be thermally connected to isolated components for additional cooling power and increased efficiency during initialization. A second fluid connection may include a valve attached to a counter-flow heat exchanger for efficiently re-condensing excess gas within the Dewar.
Quantum Engineering Design, Inc. | Date: 2013-08-07
A modular architecture for helium compressors is described.