公开(公告)号：US12202036B1

公开(公告)日：2025-01-21

申请号：US18758891

申请日：2024-06-28

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY ,  JIANGSU RESEARCH INSTITUTE OF BUILDING SCIENCE CO., LTD. ,  JIANGSU SOBUTE NEW MATERIALS CO., LTD. ,  HUNAN XIANGYI LABORATORY INSTRUMENT DEVELOPMENT CO., LTD.

Inventor： Jiangyu Wu ,  Dan Ma ,  Qian Yin ,  Weiqiang Chen ,  Hao Zhang ,  Wen Xu ,  Hongwen Jing ,  Bo Meng ,  Yurong Wu ,  Jihuai Wen ,  Gaofang Zhu ,  Qingbin Meng

IPC: B22D13/12 ,  B22D41/01

Abstract: The application discloses a system and method for centrifugal intrusion of molten metal into porous media and then solidification positioning, including: test cups, used for placing test medium and molten metal intrusion; a rotor block, used for mounting the test cups, where one end of each test cup for placing the test medium is far away from the rotor block; a constant temperature oil bath preheating device, used for preheating the test cups and the rotor block; a centrifugal device, internally provided with the rotor block, used for performing a centrifugal operation on the test cups, where the test cups and the rotor block are installed inside the centrifugal device after being preheated; and an infrared heating and compression refrigerating device, arranged inside the centrifugal device, used for controlling a temperature of the test cups.

公开(公告)号：US11780773B1

公开(公告)日：2023-10-10

申请号：US18300462

申请日：2023-04-14

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Jiangyu Wu ,  Dan Ma ,  Hai Pu ,  Qian Yin ,  Haixiang Zhang ,  Zhengfu Bian ,  Liyuan Yu ,  Hongwen Jing ,  Shuo Yang ,  Yiming Wang

IPC: C04B18/14 ,  C04B24/42 ,  C04B14/46 ,  C04B16/06 ,  C04B24/30 ,  C04B24/28 ,  C04B111/70 ,  C04B111/27 ,  C04B111/00

CPC classification number: C04B18/146 ,  C04B14/4643 ,  C04B16/0633 ,  C04B24/282 ,  C04B24/283 ,  C04B24/307 ,  C04B24/42 ,  C04B2111/00008 ,  C04B2111/27 ,  C04B2111/70 ,  C04B2201/50

Abstract: Disclosed are a grouting material for modifying mudstone, a preparation method and an application thereof, belonging to the technical field of material science and geotechnical engineering. The grouting material for modifying mudstone includes the following raw materials: cement, water, superfine micronized powder, water reducer, silane, fiber, diatomite, urea-formaldehyde resin and waterborne polyurethane. The preparation method of the grouting material for modifying mudstone includes steps of: (1) weighing the raw materials in parts by weight, mixing water of 40% of a total amount of water with water reducer, superfine micronized powder, fiber and diatomite, stirring to obtain a material A; (2) adding silane, urea-formaldehyde resin, waterborne polyurethane and residual water into the material A, obtaining a material B after continuous stirring; and (3) adding cement into the material B, and uniformly stirring to obtain the grouting material for modifying mudstone.

公开(公告)号：US12188339B2

公开(公告)日：2025-01-07

申请号：US18636666

申请日：2024-04-16

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Dan Ma ,  Qiang Li ,  Wentao Hou ,  Zhenhua Li ,  Yuanbo Xue ,  Xuefeng Gao ,  Kuirun Zhang ,  Weihao Huang ,  Zaixing Zu ,  Hao Wu ,  Hao Yan

IPC: E21B43/114 ,  E21B4/02 ,  E21B43/26

Abstract: Disclosed are a hydraulic fracturing and cutting cooperative device suitable for a hard rock and a use method thereof, belonging to the technical field of high-efficiency and rapid excavation of hard rock roadway (tunnel). The hydraulic fracturing and cutting cooperative device suitable for a hard rock provided by the disclosure includes a drill pipe, a pneumatic drilling system, a hydraulic fracturing system, a collaborative control system and a cutting head.

公开(公告)号：US12071375B1

公开(公告)日：2024-08-27

申请号：US18610411

申请日：2024-03-20

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY ,  JIANGSU RESEARCH INSTITUTE OF BUILDING SCIENCE CO., LTD. ,  JIANGSU SOBUTE NEW MATERIALS CO., LTD.

Inventor： Jiangyu Wu ,  Dan Ma ,  Hao Zhang ,  Qian Yin ,  Shuo Yang ,  Wen Xu ,  Gaofang Zhu ,  Zhenhua Li ,  Qingbin Meng ,  Bo Meng ,  Hongwen Jing ,  Jinpeng Dai

IPC: E21F15/00 ,  C04B20/00 ,  C04B111/00 ,  C04B111/20

CPC classification number: C04B20/0008 ,  C04B2111/00724 ,  C04B2111/2038

Abstract: The present disclosure provides a cemented filling material with bionic structure, a preparation method and an application thereof, and belongs to the field of structural modification methods of cemented filling materials and research and development of civil materials with ultra-high energy absorption characteristics. The cemented filling material with bionic structure includes a bionic honeycomb skeleton and cemented filling slurry, where the cemented filling slurry is poured in the bionic honeycomb skeleton.