姚桥煤矿探索总结出锚网（索）支护、超前支护、压注凝胶、喷涂聚氨酯等实用新技术防治巷道煤层自燃以及确定合理的回采速度、注氮、压注胶体泥浆等实用新技术防止采空区煤炭自燃，确保了综放面安全回采 Yaoqiao Coal Mine explored the practical application of new technologies such as anchor net (cable) support, advanced support, pressure injection gel and sprayed polyurethane to prevent and control spontaneous combustion of roadway coal seam and determine the reasonable recovery rate, nitrogen injection and pressure injection of colloidal mud Technology to prevent spontaneous combustion of coal in goaf, to ensure the safe recovery of fully mechanized caving face