Patents Assigned to CISDI RESEARCH AND DEVELOPMENT CO., LTD.
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Patent number: 11668526Abstract: The present invention belongs to the technical field of metallurgy, and discloses a horizontal continuous feeding preheating device and an enhanced preheating method therefor. The scheme comprises that two dust removal ports are arranged at the front and rear parts of a horizontal continuous feeding preheating duct, and the horizontal continuous feeding preheating duct is divided into an enhanced preheating area and a flue gas preheating area by the two dust removal ports arranged at the front and rear parts of the horizontal continuous feeding preheating duct; burners are installed in the enhanced preheating area, and the two dust removal ports are connected with a flue gas adjusting distributor respectively by a flue gas pipeline the steel scrap preheating efficiency of the burners and electric arc furnace flue gas is increased by controlling the flow rate and temperature of mixed flue gas.Type: GrantFiled: August 28, 2018Date of Patent: June 6, 2023Assignees: CISDI ENGINEERING CO., LTD, CISDI RESEARCH AND DEVELOPMENT CO., LTD.Inventors: Qiming Huang, Cunzhen Tan, Weizhi Shi, Yuchuan Zhang, Zhan Gao, Lei Al, Chunting Liu, Wei Lin, Chao Liu
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Publication number: 20220288660Abstract: The present invention relates to an intermediate blank connection system for hot-rolled strip headless rolling and a connection method, and belongs to the technical field of intermediate blank connection for strip steel headless rolling. The connection system and the connection method realize matching of an intermediate blank connection device and speed of a unit through a translation drive system. A mounting frame is used to provide support for cutting devices, and the cutting devices are divided into two groups arranged in the mounting frame to achieve clamping of a front slab and a rear slab respectively. Interlaced dovetail cutting edge structures are used to achieve cutting and ensure a good longitudinal stress state. Finally, a certain difference is set in sizes of width directions between cutting edges, to ensure that there is certain extrusion deformation in a process of forming dovetail cutting groove connection, and enhance a connection effect.Type: ApplicationFiled: August 10, 2020Publication date: September 15, 2022Applicant: CISDI Research & Development Co., Ltd.Inventors: Aimin Gao, Huiquan Han, Wanhui Wang, Min Zhou
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Publication number: 20220286036Abstract: The present invention provides a power supply device and a power supply method for a DC electric arc furnace, wherein the power supply device comprises phase-shifting rectifier transformers, rectifying units and a regulator; through a structural design of a plurality of branches and a plurality of rectifying units at an output end of each phase-shifting rectifier transformer, and a structural design that outputs of the plurality of rectifying units are connected in parallel and then connected to a power supply short network of a DC electric arc furnace through bus bars, a current output topological structure is formed, which can provide a stable large current for one electrode assembly, and a plurality of current output topological structures can supply power to a plurality of electrode assemblies, so that requirement of a larger power supply current of the DC electric arc furnace can be satisfied; positions of top electrodes are judged and adjusted by the regulator according to real-time working parameters,Type: ApplicationFiled: July 8, 2020Publication date: September 8, 2022Applicant: CISDI Research & Development Co., LTDInventors: YuChuan Zhang, QiMing Huang, NingChuan Yang, CunZhen Tan
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Patent number: 11141782Abstract: The present invention provides a heat transfer-based width adjustment method for a continuous casting mold. A boundary condition of a horizontal acceleration velocity ? used in heat transfer-based width adjustment of a continuous casting mold is set to a minimum value subject to constraints of a maximum air gap and shell strength. The present invention can constrain a maximum air gap between a copper plate of a narrow mold wall and a casting billet in a heat transfer-based width adjustment process for a continuous casting mold, thereby ensuring sufficient contact between the copper plate of the narrow mold wall and the casting billet, so as to prevent cracks and other defects of the casting billet due to excessive thermal resistance of the air gap, insufficient corner cooling of the casting billet, delayed solidification and concentrated thermal deformation stress.Type: GrantFiled: September 21, 2017Date of Patent: October 12, 2021Assignee: CISDI Research And Development Co., Ltd.Inventors: Xinjun He, Zhiwei Han, Xiaohua Peng, Jiang Chen
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Publication number: 20200290115Abstract: The present invention provides a heat transfer-based width adjustment method for a continuous casting mold. A boundary condition of a horizontal acceleration velocity ? used in heat transfer-based width adjustment of a continuous casting mold is set to a minimum value subject to constraints of a maximum air gap and shell strength. The present invention can constrain a maximum air gap between a copper plate of a narrow mold wall and a casting billet in a heat transfer-based width adjustment process for a continuous casting mold, thereby ensuring sufficient contact between the copper plate of the narrow mold wall and the casting billet, so as to prevent cracks and other defects of the casting billet due to excessive thermal resistance of the air gap, insufficient corner cooling of the casting billet, delayed solidification and concentrated thermal deformation stress.Type: ApplicationFiled: September 21, 2017Publication date: September 17, 2020Applicant: CISDI RESEARCH AND DEVELOPMENT CO., LTD.Inventors: Xinjun He, Zhiwei Han, Xiaohua Peng, Jiang Chen
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Publication number: 20200224972Abstract: The present invention belongs to the technical field of metallurgy, and discloses a horizontal continuous feeding preheating device and an enhanced preheating method therefor.Type: ApplicationFiled: August 28, 2018Publication date: July 16, 2020Applicants: CISDI ENGINEERING CO., LTD, CISDI RESEARCH AND DEVELOPMENT CO., LTD.Inventors: Qiming Huang, Cunzhen Tan, Weizhi Shi, Yuchuan Zhang, Zhan Gao, Lei AL, Chunting Liu, Wei Lin, Chao Liu