公开(公告)号：US20220280907A1

公开(公告)日：2022-09-08

申请号：US17540229

申请日：2021-12-01

Applicant: Kunming University of Science and Technology

Inventor： Lei Xu ,  Libo Zhang ,  Hang Li ,  Zhaohui Han ,  Jianhua Liu ,  Hongying Xia ,  Zhimeng Tang ,  Lirong Guo

IPC: B01J19/18 ,  C01B21/068 ,  B01J4/00 ,  B01J19/00 ,  B01J8/00

Abstract: A device for rapidly preparing β-Si3N4 by gas-solid reaction and a method thereof, and relates to the technical field of recycling and reuse of waste fine silicon powder. The bottom of a stock bin communicates with a first opening and closing passage, a first connection passage, and the top of a first transitional bin; the bottom of the first transitional bin communicates with the first opening and closing passage, a second connection passage, and the top of a reaction bin; the bottom of the reaction bin communicates with a second opening and closing passage, the first connection passage, and the top of a second transitional bin; the bottom of the second transitional bin communicates with the top of a conveying passage through the first opening and closing passage; a material outlet of the conveying bin communicates with the collection bin.

公开(公告)号：US11602725B2

公开(公告)日：2023-03-14

申请号：US17540229

申请日：2021-12-01

Applicant: Kunming University of Science and Technology

Inventor： Lei Xu ,  Libo Zhang ,  Hang Li ,  Zhaohui Han ,  Jianhua Liu ,  Hongying Xia ,  Zhimeng Tang ,  Lirong Guo

IPC: B01J4/00 ,  B01J8/00 ,  B01J19/00 ,  B01J19/18 ,  C01B21/068

Abstract: A device for rapidly preparing β-Si3N4 by gas-solid reaction and a method thereof, and relates to the technical field of recycling and reuse of waste fine silicon powder. The bottom of a stock bin communicates with a first opening and closing passage, a first connection passage, and the top of a first transitional bin; the bottom of the first transitional bin communicates with the first opening and closing passage, a second connection passage, and the top of a reaction bin; the bottom of the reaction bin communicates with a second opening and closing passage, the first connection passage, and the top of a second transitional bin; the bottom of the second transitional bin communicates with the top of a conveying passage through the first opening and closing passage; a material outlet of the conveying bin communicates with the collection bin.

公开(公告)号：US11571676B2

公开(公告)日：2023-02-07

申请号：US17492140

申请日：2021-10-01

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Lei Xu ,  Libo Zhang ,  Hang Li ,  Zhaohui Han ,  Jianhua Liu ,  Junwen Zhou ,  Hongying Xia ,  Xiangxian Liu ,  Yi Xia ,  Xinpei Li

IPC: B01J19/00 ,  B01J19/08 ,  B01J19/12

Abstract: The present disclosure provides an opening-closing type microwave catalytic reaction apparatus, including a microwave system, a microwave cavity, a protective cover, a cooling system, and a vertical furnace tube, where two ends of the furnace tube are respectively stretched out of the microwave cavity, the microwave system includes a plurality of microwave transmitting units, and the microwave transmitting unit includes a microwave transmitter; the furnace tube is provided with a gas inlet on a top and a gas outlet on a bottom; a compression hinge and a cavity cover capable of being opened or closed are arranged on the microwave cavity, a convex edge plate is disposed at an edge of the cavity cover, the compression hinge can compress the cavity cover such that the convex edge plate is tightly attached to a concave edge plate on the microwave cavity, and the protective cover can cover the entire cavity cover.