Design and application of heat pipe air heater in coal mine shaft
GUO You
LIU Bin
QIANG Tian-wei
LIU Jia-lei
ZHANG Zhen-peng
Abstract：In order to solve the problem of coal mine shaft freeze prevention in the heating season,a heat pipe air heater for mine shaft air heating equipment was designed.By studying the topic of anti-freezing of coal mine shafts,combined with the existing working conditions,the selection calculation of heat pipe air heating equipment is carried out,and the operation effect of the equipment is analyzed through the system operation test.The results show that the average air supply temperature of the heat pipe air heater is 19℃,and the mixed air temperature at 20 m in the wellbore and 50 m in the wellbore are both greater than 2℃,which meets the requirements of wellbore antifreeze.The study indicates the equipment runs well and reliably,effectively prevents the occurrence of icicles at the wellhead in winter,and has a good energy-saving effect.
Keywords：wellbore antifreezegravity heat pipeheatpipe air heater
Publication Date：2023-12-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 97-100 )