公开(公告)号：US10900904B2

公开(公告)日：2021-01-26

申请号：US16648666

申请日：2018-03-28

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Jun Xiang ,  Jun Xu ,  Sheng Su ,  Song Hu ,  Yi Wang ,  Jiawei Liu ,  Zhe Xiong ,  Jing Zhou ,  Hao Tang ,  Mengxia Qing ,  Wei Liu

IPC: G01J3/44 ,  G01N21/65 ,  G01N33/22

Abstract: The present invention relates to a method for detecting moisture and volatile matter content in raw coal using the value of baseline drift, comprising the following steps: selecting a plurality of types of standard coal having different coal ranks and different ash contents, performing a Raman spectroscopy test and a proximate analysis on each type of standard coal, calculating the value of baseline drift in the Raman spectrum, and setting up the mapping relationship between the value of baseline drift in the Raman spectrum and the characteristic parameters of the moisture and the volatile matter content. The same method and reference are used to perform a Raman spectroscopy test on raw coal to be tested, so as to calculate the value of baseline drift in a Raman spectrum of the raw coal to be tested, and obtain the moisture and volatile matter content of the raw coal to be tested.

公开(公告)号：US10670529B2

公开(公告)日：2020-06-02

申请号：US16247544

申请日：2019-01-14

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Jun Xiang ,  Jun Xu ,  Sheng Su ,  Song Hu ,  Yi Wang ,  Long Jiang ,  Mengxia Qing ,  Zhe Xiong ,  Hao Tang

IPC: G01J3/44 ,  G01N21/65 ,  G01N33/22

Abstract: A method for detecting coal quality, including: selecting a plurality of standard coals, acquiring Raman spectral characteristic parameters of each standard coal and characteristic parameters of coal quality components of each standard coal, calculating a mapping relationship between the Raman spectral characteristic parameters and the characteristic parameters of the coal quality components of each standard coal, to establish a relational database of the Raman spectral characteristic parameters and the characteristic parameters of the coal quality components; providing coal to be analyzed, conducting Raman spectroscopy on the coal to yield Raman spectrum of the coal, and performing curve-fitting calculation on the Raman spectrum of the coal to obtain Raman spectral characteristic parameters of the coal; and comparing the Raman spectral characteristic parameters of the coal with the Raman spectral characteristic parameters of the relational database.

公开(公告)号：US20190154585A1

公开(公告)日：2019-05-23

申请号：US16247544

申请日：2019-01-14

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Jun Xiang ,  Jun Xu ,  Sheng Su ,  Song Hu ,  Yi Wang ,  Long Jiang ,  Mengxia Qing ,  Zhe Xiong ,  Hao TANG

IPC: G01N21/65 ,  G01N33/22

Abstract: A method for detecting coal quality, including: selecting a plurality of standard coals, acquiring Raman spectral characteristic parameters of each standard coal and characteristic parameters of coal quality components of each standard coal, calculating a mapping relationship between the Raman spectral characteristic parameters and the characteristic parameters of the coal quality components of each standard coal, to establish a relational database of the Raman spectral characteristic parameters and the characteristic parameters of the coal quality components; providing coal to be analyzed, conducting Raman spectroscopy on the coal to yield Raman spectrum of the coal, and performing curve-fitting calculation on the Raman spectrum of the coal to obtain Raman spectral characteristic parameters of the coal; and comparing the Raman spectral characteristic parameters of the coal with the Raman spectral characteristic parameters of the relational database.