Research On Comprehensive Application Of Mine Waste Heat Based On Heat Pump Technology

To effectively solve the problem of waste heat recycling in coal mines,replace coalfired boilers and split air conditioners,and realize that coal does not burn coal when coal is produced,has important practical significance for the realization of energy conservation and emission reduction in coal mining enterprises.This study takes coal mine waste heat resources as the object,develops the corresponding waste heat recycling technology and process,forms the coal mine waste heat recycling system,and provides the technical support for the implementation and popularization of coal mine waste heat recovery and utilization.Main work and achievements:(1)The characteristics of all kinds of waste heat resources in coal mine were systematically summarized,and the feasibility of recycling of all kinds of waste heat resources in coal mine was studied and analyzed.Corresponding waste heat recycling technology was proposed for different types of waste heat resources,forming the waste heat recycling system of coal mine;(2)the development of the mine air return whole set technology of low temperature waste heat recovery technology,contains large enthalpy potential mine depth of return air heat recovery technology,low air temperature condition mine return air heat extraction technology,and based on the spread of return air heat recovery tower mine optimization technology,has solved the different regions,different forms of return air mine air return efficient heat recovery problem;(3)The key technologies and equipment for the depth utilization of waste heat of tunnel kiln flue gas were designed.Modular cascade heat transfer of waste heat and PFA coating anticorrosion technology were adopted to solve the problems of dust and corrosion of equipment in the process of waste heat recovery of flue gas,and the depth recovery and utilization of exhaust heat and exhaust moisture above 15? were realized.The research and development of coal mine waste heat recycling technology has guiding significance and practical application value for the development of coal mine waste heat recycling equipment and the construction of coal mine waste heat recovery and recycling demonstration project.