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

IPC: C21C5/30 ,  C21C5/46 ,  C21C7/064

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.

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.

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

IPC: C21C5/30 ,  G06N5/00

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.

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.

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

IPC: E21B21/00 ,  E21B10/26 ,  E21B10/42 ,  E21B17/10

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.

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

IPC: C22C1/02 ,  C25C3/34

CPC classification number: C22C1/02 ,  C25C3/34

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.

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

IPC: E21B21/00 ,  E21D1/06 ,  E21D5/00

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.

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.

公开(公告)号：US11852209B2

公开(公告)日：2023-12-26

申请号：US16793938

申请日：2020-02-18

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING ,  BEIJING TIANYISHANGJIA NEW MATERIAL CORP., LTD.

Inventor： Lin Zhang ,  Xuanhui Qu ,  Peng Zhang ,  Peifang Wu ,  Mingli Qin ,  Cairang Shijia ,  Jingwu Cao ,  Kangxi Fu

IPC: F16D69/02 ,  B22F3/16 ,  B22F7/00 ,  C22C47/14 ,  C22C49/02 ,  C22C49/14 ,  F16D65/092 ,  G01N19/02 ,  B22F1/10

CPC classification number: F16D69/028 ,  B22F1/10 ,  B22F1/108 ,  B22F3/16 ,  B22F7/008 ,  C22C47/14 ,  C22C49/02 ,  C22C49/14 ,  F16D65/092 ,  G01N19/02 ,  B22F2301/10 ,  B22F2302/40 ,  B22F2304/10 ,  F16D2200/0008 ,  F16D2200/0026 ,  F16D2200/0052 ,  F16D2200/0065 ,  B22F2998/10 ,  B22F1/108 ,  B22F3/14 ,  B22F2003/023

Abstract: The present disclosure relates to a fiber-reinforced copper-based brake pad for high-speed railway train, and preparation and friction braking performance thereof. The fiber-reinforced copper-based brake pad for high-speed railway train comprises 80-98.5 wt. % metal powder, 1-15 wt. % non-metal powder and 0.5-5 wt. % fiber component. In addition, some components are added in a specific proportion to achieve optimal performance. The copper-based powder metallurgy brake pad is obtained by powder mixing, cold-pressing and sintering with constant pressure. The friction braking performance of the obtained brake pad is tested according to a braking procedure consisting of three stages, i.e., the first stage with low-pressure and low-speed, the second stage with high-pressure high-speed and the continuous emergency braking third stage with high-pressure and high-speed. The brake pad has advantages including higher and more stable friction coefficient, higher fade and wear resistance and slighter damage to brake disc at high speeds.

公开(公告)号：US20230407437A1

公开(公告)日：2023-12-21

申请号：US18061998

申请日：2022-12-05

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

Inventor： Xi LAN ,  Zhancheng GUO ,  Jintao GAO ,  Zengwu WANG ,  Guoliang FENG ,  Xiang LI ,  Rong YUAN

IPC: C22B34/24 ,  C22B5/10

CPC classification number: C22B34/24 ,  C22B5/10

Abstract: A method and an equipment for comprehensive utilization of niobite is disclosed. The method includes the following steps: S1. adding and uniformly mixing a coal-based reducing agent to the niobite, and subsequently reducing the mixture in a reduction furnace to obtain the selective reduction product; S2. adding the selective reduction product to a super-gravity reactor where the ambient temperature is controlled to be lower than the temperature at which the niobium oxide is reduced; driven by super-gravity, reverse migrating and collecting the metal iron and the niobium-rich slag at different locations in the reactor; discharging the metallic iron tightly attached to the wall of the reactor through an iron discharging port, and discharging the niobium-rich slag enriched to the inner layer of the reactor through a slag discharging port, so that the separation of the metallic iron and the niobium-rich slag is realized in the super-gravity field.