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公开(公告)号：US12162065B2
公开(公告)日：2024-12-10
申请号：US18556167
申请日：2022-07-21
Applicant: University of Science and Technology Beijing
Inventor： Cheng Zhou , Dongpo Xuan , You Zhou , Tianliang Jiang , Biji Zhu , Wenhao Fan , Zhihao Zhang , Jianxin Xie
IPC: B22D11/103 , B22D11/06
Abstract: A thin metal strip continuous casting method using momentum flow distribution, comprising the steps of: adjusting the position of a flow distribution device (2), and starting a double-roller thin strip continuous casting apparatus; molten metal (3) forming a uniform sheet-shaped molten metal flow (4) having an initial momentum after the molten metal (3) passes through the flow distribution device; the sheet-shaped molten metal flow entering a molten pool (5) at a superheat degree of 50-100° C. and an initial velocity of 0.5-2 m/s, wherein the flow distribution device is spaced apart from the molten pool; under the action of the initial velocity of the molten metal and in the molten pool, forming a whirlpool, which is adjacent to surfaces of two cooling rollers and has a momentum stirring action; and completing the solidification of the molten metal under the momentum stirring action of the whirlpool along with the rotation of the two cooling rollers. In the method, a whirlpool, which is adjacent to surfaces of cooling rollers and has a momentum stirring action, is formed in a molten pool by means of the kinetic energy of molten metal, such that equiaxed crystals can be prepared when a superheat degree is as high as 50-100° C., and the proportion of equiaxed crystals can be increased to 100%, thereby refining crystal grains and alleviating segregation.
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82.发明公开公开(公告)号：US20240261851A1
公开(公告)日：2024-08-08
申请号：US18290389
申请日：2022-05-10
Applicant: THE UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING , ZIBO CITY LUZHONG REFRACTORIES CO., LTD. , ZIBO LANGFENG HIGH TEMPERATURE MATERIALS CO., LTD.
Inventor： Junhong CHEN , Jisheng FENG , Yuanping JIA , Bin LI , Bo ZHU , Guangqi LI , Yutao GUO
IPC: B22D41/02 , C04B35/119 , C04B35/645
CPC classification number: B22D41/02 , C04B35/119 , C04B35/645 , C04B2235/3206 , C04B2235/3208 , C04B2235/3217 , C04B2235/3244 , C04B2235/5427 , C04B2235/5436 , C04B2235/656 , C04B2235/77 , C04B2235/9676
Abstract: The present application discloses a refractory material with the function of cleaning molten steel, a preparation method therefor and the use thereof. The material phase of the refractory material of the present application comprises one or more of CA6, CMA, corundum and ZrO2. The refractory material prepared by the present application has a high purity, good erosion resistance, good slag permeability resistance and high thermal shock stability, reduces the amount of refractory material eroded into molten steel, reduces the pollution of the molten steel, and can also give full play to the performance advantages of high-purity raw materials.
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83.发明公开公开(公告)号：US20240247328A1
公开(公告)日：2024-07-25
申请号：US18458173
申请日：2023-08-30
Applicant: University of Science and Technology Beijing , Beijing Kemi Rongcheng Energy Technology Co., Ltd.
Inventor： Kai DONG , Xin REN , Rong ZHU , Guangsheng WEI , Chao FENG , Rongfang SU , Shaoyan HU , Yun ZHOU , Chunyang WANG , Zhitao XUE , Linghui MENG
CPC classification number: C21C5/30 , C21C5/4606 , C21C5/466 , C21C7/0645 , C21C2005/4666
Abstract: A converter bottom blowing system comprises a first gas source connected in parallel with a lime powder silo, a lime powder blowing tank and a first injector, where a first cut-off valve is arranged between the lime powder blowing tank and the first injector; a second gas source connected in parallel with the biochar powder silo, the biochar powder blowing tank and the second injector, where a second cut-off valve is arranged between the biochar powder blowing tank and the second injector; a converter, where a plurality of bottom blowing lances are arrayed at a bottom of a converter, the bottom blowing lances are connected with the first injector and the second injector through a three-way valve, a third cut-off valve is arranged between the first injector and the three-way valve, and a fourth cut-off valve is arranged between the second injector and the three-way valve.
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84.发明公开公开(公告)号：US20240246861A1
公开(公告)日：2024-07-25
申请号：US18290391
申请日：2022-05-10
Applicant: ZIBO LANGFENG HIGH TEMPERATURE MATERIALS CO., LTD. , THE UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING , ZIBO CITY LUZHONG REFRACTORIES CO., LTD.
Inventor： Junhong CHEN , Jisheng FENG , Yuanping JIA , Bin LI , Bo ZHU , Guangqi LI , Yutao GUO
IPC: C04B35/101 , B22D41/02 , C04B35/645
CPC classification number: C04B35/1015 , B22D41/02 , C04B35/645 , C04B2235/3222 , C04B2235/656 , C04B2235/77 , C04B2235/9607 , C04B2235/9676
Abstract: Disclosed are a CA6-based thermally insulating refractory material with a medium volume density, a preparation method therefor, and the use thereof. The CA6-based thermally insulating refractory material with a medium volume density in the present invention has phases comprising CA6 and one or more selected from C2M2A14, C2M2A8, magnesium aluminate spinel, and corundum, and the refractory material has a high purity, good high temperature stability, a uniform structure, stable performance, a relatively low thermal conductivity, and good corrosion resistance to a metal, slag, etc.
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公开(公告)号：US11987855B2
公开(公告)日：2024-05-21
申请号：US18308784
申请日：2023-04-28
Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
Inventor： Yanping Bao , Ruixuan Zheng , Lihua Zhao
CPC classification number: C21C5/30 , G06N5/00 , C21C2300/06
Abstract: The invention relates to a method and a system for determining the steel-tapping quantity of a converter, which consider that the working environment of the steel-making process of the converter is severe, the measurement is difficult and the interference of other factors is large, and provide a data-driven prediction model based on data, combine a Principal Component Analysis (PCA) with a RBF neural network, find the relation and the internal relation among variables by carrying out mathematical analysis on the related internal structure of the original variables, can quickly and accurately realize the prediction of the steel-tapping quantity of the converter, improve the component hit rate and the product stability in the steel-making process of the converter, are beneficial to realizing the control of narrow regions of steel-making components, save the alloying cost and have good application prospects in the field of ferrous metallurgy.
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Patent Agency Ranking
公开(公告)号：US20240135057A1
公开(公告)日：2024-04-25
申请号：US18373298
申请日：2023-09-27
Applicant: University of Science and Technology Beijing
Inventor： Ningning LIU , Linjing HUANG , Ruifeng DOU , Mengqi YU , Linxi ZHANG , Zhi WEN , Xunliang LIU
IPC: G06F30/20 , G06F111/08 , G06F111/10
CPC classification number: G06F30/20 , G06F2111/08 , G06F2111/10
Abstract: A method for numerical reconstruction and heat transfer characteristics evaluation of a microstructure of thermal barrier coatings containing microcracks includes the following steps: determining a simulation area and size settings, generating random microcracks with different morphological characteristics and placing the microcracks in the simulation area, and determining whether a space occupied by the microcracks reaches a porosity ratio of the preset microcracks, building a general pore model of thermal barrier coatings (TBCs) based on the QSGS method, reconstructing true mesoscopic morphologies of the TBCs, determining whether the preset volume fraction has been reached, and building a heat transfer analysis model based on the thermal 1,attice Boltzmann method to calculate heat insulation performance parameters such as temperature distribution, and thermal conductivity. Compared with the prior art, the heat transfer analysis model can restore a mesoscopic structure of the coating more truly and effectively.
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公开(公告)号：US20240068308A1
公开(公告)日：2024-02-29
申请号：US18455878
申请日：2023-08-25
Applicant: HEFEI DESIGN & RESEARCH INSTITUTE OF COAL INDUSTRY CO., LTD , UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING , CHINA COAL NO.3 CONSTRUCTION CORPORATION (GROUP) LTD , ANSTEEL GROUP MINING CORPORTION LIMITED
Inventor： Huidong XU , Renshu YANG , Bin XU , Ning LIU , Guang LI , Yong ZHANG , Jinghui YE , Lin LV , Fei MA , Donghui MAN , Tingting BAO , Zheng LI , Yingcan LIU , Guozheng ZHOU , Bo DING
CPC classification number: E21B21/002 , E21B10/26 , E21B10/42 , E21B17/1057
Abstract: A full-face shaft tunnel boring machine system includes a tunnel boring machine cutterhead device for tunneling downwards in a shaft; a full-hydraulic formwork device for supporting and walling in a wellbore; and an upper muck-discharge system for vertically conveying rock mucks generated by tunneling. The tunnel boring machine cutterhead device comprises a vertical guide frame, a cutter-expanded boring head and an advanced cutterhead that are fixedly connected in a vertical order from top to bottom so as to form an integrated structure. The vertical guide frame is a hollow cylindrical structure and driven to rotate around an axis of the vertical guide frame by a power mechanism, and an outer wall of the vertical guide frame is provided with multiple sets of first guide rollers.
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88.发明公开公开(公告)号：US20240043964A1
公开(公告)日：2024-02-08
申请号：US18379213
申请日：2023-10-12
Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
Inventor： Xinfang ZHANG , Baoyu ZHANG , Xiaoshan HUANG , Mengcheng ZHOU , Changhao LIU , Di ZHANG , Longge YAN
Abstract: A device and method for preparing a low-impurity regenerated brass alloy through step-by-step insertion of an electrode are provided. The device includes a melt heating apparatus, an electrode displacement apparatus, and a pulse current generation apparatus. The automatic electrode lifting apparatus is controlled to adjust an insertion depth of the graphite electrode plate in the metal melt, and the pulse current generation apparatus is controlled to adjust the parameters of pulse current to achieve the impurity reduction on the metal melt. The preparation of a low-impurity regenerated brass alloy involves a short production process, simple operations, low energy consumption, and high impurity removal efficiency, and is suitable for regeneration and large-scale continuous production of non-ferrous metal alloys.
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公开(公告)号：US11891865B1
公开(公告)日：2024-02-06
申请号：US18455878
申请日：2023-08-25
Applicant: HEFEI DESIGN & RESEARCH INSTITUTE OF COAL INDUSTRY CO., LTD , UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING , CHINA COAL NO. 3 CONSTRUCTION CORPORATION (GROUP) LTD , ANSTEEL GROUP MINING CORPORTION LIMITED
Inventor： Huidong Xu , Renshu Yang , Bin Xu , Ning Liu , Guang Li , Yong Zhang , Jinghui Ye , Lin Lv , Fei Ma , Donghui Man , Tingting Bao , Zheng Li , Yingcan Liu , Guozheng Zhou , Bo Ding
CPC classification number: E21B21/002 , E21D1/06 , E21D5/00
Abstract: A full-face shaft tunnel boring machine system includes a tunnel boring machine cutterhead device for tunneling downwards in a shaft; a full-hydraulic formwork device for supporting and walling in a wellbore; and an upper muck-discharge system for vertically conveying rock mucks generated by tunneling. The tunnel boring machine cutterhead device comprises a vertical guide frame, a cutter-expanded boring head and an advanced cutterhead that are fixedly connected in a vertical order from top to bottom so as to form an integrated structure. The vertical guide frame is a hollow cylindrical structure and driven to rotate around an axis of the vertical guide frame by a power mechanism, and an outer wall of the vertical guide frame is provided with multiple sets of first guide rollers.
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公开(公告)号：US20240002964A1
公开(公告)日：2024-01-04
申请号：US18308784
申请日：2023-04-28
Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
Inventor： Yanping BAO , Ruixuan ZHENG , Lihua ZHAO
IPC: C21C5/30
CPC classification number: C21C5/30 , C21C2300/06
Abstract: The invention relates to a method and a system for determining the steel-tapping quantity of a converter, which consider that the working environment of the steel-making process of the converter is severe, the measurement is difficult and the interference of other factors is large, and provide a data-driven prediction model based on data, combine a Principal Component Analysis (PCA) with a RBF neural network, find the relation and the internal relation among variables by carrying out mathematical analysis on the related internal structure of the original variables, can quickly and accurately realize the prediction of the steel-tapping quantity of the converter, improve the component hit rate and the product stability in the steel-making process of the converter, are beneficial to realizing the control of narrow regions of steel-making components, save the alloying cost and have good application prospects in the field of ferrous metallurgy.
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