Ningxia Coal Mine Design and Research Institute Co., Ltd.

羊场湾煤矿13/14采区井筒防冻系统以两台10t燃煤锅炉作为供热热源,根据环保政策要求,锅炉将实施拆除。针对该矿井筒防冻系统将无供热热源,影响矿井安全生产情况,鉴于该矿矿井回风温度高、湿度大,回风中蕴含大量的余热资源,可以代替原有燃煤锅炉作为井筒防冻供热热源,采用矿井回风余热利用技术,将矿井回风中的余热直接提取后加热入井新风,可保证入井风温不低于2℃。矿井回风余热利用技术在该矿应用后,采暖季进风井井筒未出现结冰情况,满足井口防冻需求,提升了企业能源、资源利用效率,推动企业走上绿色、低碳、可持续发展之路。

The anti-freezing system in the 13/14 mining area wellbore of Yangchangwan Coal Mine uses two 10 t coal-fired boilers as heating supply heat sources. According to environmental protection policies, the boilers will be dismantled. In view of the situation that the wellbore anti freezing system of the mine will have no heating supply heat sources, which affects the safety production of the mine, considering the high temperature and humidity of the return air in this mine, which contains a large amount of residual heat resources, it can replace the original coal-fired boiler as the anti freezing heating supply heat source for the wellbore. By using the residual heat utilization technology of the mine return air, after directly extracting the residual heat in the mine return air, the fresh air that entering mine is heated, ensuring that the entering mine air temperature is not less than 2 ℃ . After applicating the mine return air residual heat utilization technology in this mine, there has no ice formation situation occurs in the air inlet wellbore during the heating season, meeting the needs of anti freezing at the wellhead, improving the energy and resource utilization efficiency of the enterprise, and promoting the enterprise to embark on a green, low-carbon, and sustainable development path.