Method for detecting moisture and volatile matter content of raw coal by using value of baseline drift

A method for detecting moisture and volatile matter content of raw coal by using a value of baseline drift, comprising the following steps:

• step 1:
• selecting a variety of standard coals with different coal ranks and different ash contents, and performing Raman spectroscopy test and proximate analysis on each standard coal to obtain Raman spectral characteristic parameters as well as moisture and volatile matter content of each standard coal, calculating a value of baseline drift in Raman spectrum by using the Raman spectral characteristic parameters of each standard coal, and setting up a mapping relationship between the value of baseline drift in Raman spectrum and the moisture and the volatile matter content to establish a relevance database of baseline drift value in Raman spectrum and the moisture as well as the volatile matter content;
• step 2:
• using the same method and reference as in step 1 to perform Raman spectroscopy test on raw coal to be tested to obtain the Raman spectral characteristic parameters of the raw coal to be tested, calculating the value of baseline drift in Raman spectrum of the raw coal to be tested, obtaining the moisture and the volatile matter content of the raw coal to be tested according to the corresponding mapping relationship between the value of baseline drift in Raman spectrum and the moisture and the volatile matter content in the relevance database.