1. School of Energy and Mining Engineering, China Univ. of Mining and Technology Beijing, Ding 11, Xueyuan Rd., Haidian District, Beijing 100083, P. R. China.
2. School of Energy and Mining Engineering, China Univ. of Mining and Technology Beijing, Ding 11, Xueyuan Rd., Haidian District, Beijing 100083, P. R. China (corresponding author). ORCID: . Emails:
3. School of Resources and Safety Engineering, Central South Univ., #932, Lushan Rd., Yuelu District, Changsha, Hunan 410083, China.
4. Institute of Technology, Shanxi Coking Coal Huozhou Coal Electricity Group, Longbai Rd., Bailong District, Huozhou, Shanxi 031499, China.
5. Beijing Zhonghao Urban and Rural Construction., Ltd., #11, Binhe Rd., Yongdingmenwai, Dongcheng District, Beijing 100075, China.