公开(公告)号：US20240068359A1

公开(公告)日：2024-02-29

申请号：US18505882

申请日：2023-11-09

Applicant: Anhui University of Science and Technology

Inventor： Shaobo LI ,  Lei WANG ,  Xingang NIU ,  Chuanqi ZHU ,  Zhenyu YANG ,  Lipeng CHEN ,  Yu ZHANG

IPC: E21B47/06 ,  E21B33/13

CPC classification number: E21B47/06 ,  E21B33/13

Abstract: Disclosed is a method for measuring gas pressure of a close-distance seam group simultaneously, including the following steps: constructing a pressure-measuring drill hole inclined downwards; lowering a first seam piezometer tube, lowering a baffle and a polyurethane blocking material after a tube head reaching a lowermost seam; and installing a gas pressure gauge; lowering a second seam piezometer tube, lowering the baffle and the polyurethane blocking material after the tube head reaching a second layer of seam; and installing the gas pressure gauge; lowering a nth seam piezometer tube, lowering the baffle and the polyurethane blocking material after the tube head reaching a nth layer of seam; and installing the gas pressure gauge; injecting a high-water and quick-solidifying material into the drill hole; and connecting the gas pressure gauges through optical fibers, and connecting the gas pressure gauges with a ground control system.

公开(公告)号：US20210008467A1

公开(公告)日：2021-01-14

申请号：US17030424

申请日：2020-09-24

Applicant: Anhui University of Science And Technology

Inventor： Chao WANG ,  Erning ZHAO ,  Biao HU ,  Chengliang QIU ,  Mengmeng WANG ,  Xueqing JIANG ,  Xiong XIAO ,  Xinchun LIU ,  Yang FENG ,  Jiaqiang ZHOU ,  Jin ZHANG ,  Yu ZHANG

IPC: B01D21/24 ,  B01D19/02 ,  B01D21/02 ,  C02F1/20 ,  C02F1/48 ,  C02F11/121 ,  B01D21/01

Abstract: Disclosed is a reverse flow multi-stage sedimentation rake-free thickening device relating to the field of slime water treatment. The device includes a feed assembly, a guide assembly, and a clean coal collection assembly. The guide assembly also includes a central tank body and coal slurry flows from the upper part of the central tank body to the inner side wall of the central tank body through the feed assembly and the medicament, and then flows to the middle of the central tank body through the guide assembly. After the reaction, the bubbles carry the fine coal slime and move up to the clean coal collection assembly. The clean coal collection assembly is located above the outlet of the guide assembly, and the clean coal collection assembly is sequentially provided with a central collection area, a defoaming area, and a diversion settlement area from the middle to the outside.