[Ten years of major development in chemical equipment] 1124-2023 MCC Jingcheng clean coke oven high-efficiency waste heat power generation technology
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Ten years of great development in chemical technology, praising China's prosperity and strength in the prosperous age, and making the world more lively and exciting with everyone's participation. [Ten Years of Great Development of Chemical Equipment] Continuously update the summary post, welcome to participate in the discussion https://bbs.hcbbs.com/thread-3576046-1-1.html Enhance quality awareness and promote high-quality development-----------------------------------------On April 18th and 19th, the "Energy-saving Services into Enterprises" and 2022 hosted by the Machinery Industry Technology Development Foundation and the Machinery Industry Energy Conservation and Resource Utilization Center * * The Industrial Energy Saving Technology and Equipment Promotion and Exchange Conference was held in Nanjing, Jiangsu Province. MCC Jingcheng’s clean and efficient waste heat power generation technology was promoted and exchanged at the conference. The high-efficiency waste heat power generation technology of clean coke ovens uses the high-temperature flue gas waste heat in the production process of clean coke ovens to generate electricity. Through the steam secondary reheat technology, the power generation efficiency is increased by more than 30%, and the energy saving effect is greatly improved. The high-efficiency waste heat power generated by clean coke ovens is used for the company's own production, which increases the company's self-generation rate, reduces power purchases from the power grid, and has significant emission reduction effects. This technology has been successfully used in clean coke oven projects such as Fujian Sanming Iron and Steel, Tangshan Guotang Iron and Steel, and Hebei Taihang Iron and Steel. It has a strong demonstration effect on the green and intelligent development of my country's metallurgical industry and the development of waste heat power generation technology. Clean coke oven efficient waste heat power generation technology has been successfully selected by * * The Ministry of Industry and Information Technology is responsible for organizing, preparing and publishing the " * * Recommended Catalog of Industrial Energy-Saving Technology and Equipment (2022 Edition)". The energy-saving technologies, equipment and products selected into the recommended catalog meet the needs of energy conservation, efficiency improvement and green and low-carbon development in my country's industrial and information fields during the "14th Five-Year Plan" period. They have the characteristics of advanced energy efficiency, mature and reliable technology, good energy saving and economy, and great potential for promotion and application. They have reached the international advanced level and have high gold content. This promotion and exchange conference further stimulated the enthusiasm of enterprises to apply advanced and applicable energy-saving technology and equipment, guided the steel industry to save energy and reduce carbon, reduce costs and increase efficiency, and help achieve the goal of carbon peak and carbon neutrality.
The high-efficiency waste heat power generation technology of clean heat recovery coke ovens uses the high-temperature flue gas waste heat generated during the production process of clean coke ovens to generate electricity. It is highlighted by the "patented technology of the same mother pipe for reheat boilers and single-pressure boilers" pioneered by MCC Jingcheng Kelin Company, which can fully recover the waste heat of coke oven flue gases. Heat and supporting dry quenching waste heat, supporting the construction of high-temperature and ultra-high-pressure waste heat boilers, primary intermediate reheat steam turbine generator units and related ancillary facilities. Through secondary reheating of intermediate steam, the recycling utilization rate of energy can be maximized. It has the characteristics of high technical difficulty, complex system and large volume. It is reported that this technology has been successfully used in many projects such as Fujian Sanshan Steel and Tangshan Guotang, with all production indicators and technological levels leading the way. This time, the Hebei Taihang Steel cogeneration waste heat power generation project is a larger-scale successful practice of this technology. The project is divided into two main power generation plant units, equipped with eight coking waste heat boilers and four high-temperature and ultra-high-pressure primary intermediate reheat steam turbine generator units and supporting auxiliary facilities. Compared with traditional high-temperature and high-pressure generator units, the thermal efficiency of the entire plant has increased by more than 23%, and the power generation per ton of coke has increased by 300 kilowatt-hour, the annual power supply increases by 600 million kilowatt-hours, improves the company's self-generation rate, reduces power grid purchases, reduces coke production costs by more than 150 yuan per ton, reduces carbon dioxide emissions by about 470,000 tons per year, and reduces calorific value emissions, creating profits and revenue for the company, and achieving significant results in energy conservation and cost reduction. In addition, the waste heat power generation project supporting the project was completed at one time, and four sets of generating units were put into operation one after another. The project goals were fully and successfully completed, which fully demonstrated the scientific and technological strength, project management capabilities and excellent services of the general contractor MCC Jingcheng.
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