TY  - JOUR
AU  - FU, Wei
AU  - SONG, Haizhou
AU  - CHEN, Xiaofei
AU  - ZHANG, Zhenguo
AU  - XU, Chuanliang
AU  - LIU, Qu
AU  - ZHANG, Xiangyan
PY  - 2025
TI  - Turbulent air chamber control and dry purification collaborative control technology and equipment development for dust removal in fully mechanized excavation face
JO  - Journal of Mining Science and Technology
SN  - 2096-2193
SP  - 705
EP  - 713
VL  - 10
IS  - 4
AB  - This study proposes a turbulent air chamber control and dry purification collaborative control technology for dust removal as a solution to the dust pollution in the Yunshun fully mechanized excavation face 6307 of Dongtan Coal Mine. We compared the conditions of press-in ventilation and pressure-extraction hybrid ventilation through numerical simulation. Results show that the average dust concentration at the height of the breathing zone under single-pressure ventilation could reach 2478.4 mg/m3, posing serious threat to the health of the equipment operators. Dust concentration was significantly reduced under pressure-extraction hybrid ventilation, with highly concentrated dust clusters above 1000 mg/m3 diffusing to X=35 m when t=100 s. The highest concentration reached 1254.8 mg/m3. Applying this turbulent air chamber control and dry purification collaborative control technology for dust removal could effectively inhibits dust diffusion, which is blocked in the range of X=0~15 m, and purified by dry dust removal fan. Corresponding equipment was also developed.
UR  - https://doi.org/10.19606/j.cnki.jmst.2025040
DO  - 10.19606/j.cnki.jmst.2025040