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国家能源局: 加快推进煤炭洗选高质量发展
Ke Ji Ri Bao· 2025-10-21 01:04
Core Viewpoint - The National Energy Administration has issued an opinion to enhance the clean and efficient utilization of coal, promote high-quality development of coal washing and selection, and elevate coal products from primary fuels to high-value products [1][2] Group 1: Coal Washing and Selection - Coal washing and selection is a crucial process that separates impurities from raw coal to produce different specifications of coal products, significantly improving coal quality and its clean utilization [1] - The current state of coal washing in the country shows a good technical and management foundation, with promising prospects for intelligent construction, although there are issues such as the coexistence of advanced and outdated capacities and insufficient utilization of coal gangue [1] Group 2: Objectives and Key Tasks - By the end of the 14th Five-Year Plan, coal washing facilities are expected to meet the needs of raw coal selection, optimize washing capacity structure, and make significant progress in the construction of intelligent coal washing plants [2] - The opinion outlines seven key tasks focusing on optimizing washing capacity, enhancing intelligent construction, improving clean and efficient production levels, and strengthening technological research and pilot applications [2] Group 3: Technological Development - The opinion emphasizes the need for technological advancements, including the development of key equipment such as large-scale crushing and sorting, centrifugal dewatering, and pressure filtration, while also enhancing the domestic production rate of electronic components [2] - It aims to improve the reliability and processing capacity of dry coal washing equipment and advance the theoretical framework for dry coal washing [2] Group 4: Implementation and Coordination - The National Energy Administration will strengthen organizational coordination and communication to promote the establishment of a coal washing policy and standards system, addressing major issues in the implementation process [2]
全国首个750千伏输变电工程20年送电超1500亿千瓦时_今日热议
Ke Ji Ri Bao· 2025-10-21 00:08
【资料图】 通过该工程,我国自主掌握了750千伏电网的设计、设备制造、施工、调试和运行的全部核心技 术,形成国内标准和技术规范,成为世界上少数掌握750千伏超高压输变电成套技术的国家之一,为 2010年750千伏新疆与西北联网工程的投运提供了先行经验。 标签: 工程 750 电网 千伏 水电 输变电 全国 2003年9月19日,该工程正式开工。工程起自青海省民和县官亭镇750千伏官亭变电站,至甘肃省兰 州市榆中县750千伏兰州东变电站,线路全长141千米,设计输送容量1500兆伏安。 2005年9月26日,工程建成投运,陕西、甘肃、青海、宁夏电网实现首次互联,西北750千伏主网架 初具雏形,黄河上游丰富的水电、风光能源终于找到了外送的"高速公路"。工程也彻底终结了我国电网 没有500千伏以上电压等级的历史,为我国特高压技术发展奠定了坚实基础。 全国首个750千伏输变电工程——官亭—兰州东输变电示范工程日前迎来投运20周年。20年来,这 条线路累计输送电量超1500亿千瓦时,在服务黄河梯级水电外送、助推经济社会发展方面作出了巨大贡 献。 ...
加快农业数智化转型升级
Ke Ji Ri Bao· 2025-10-20 23:56
Core Viewpoint - The Chinese government has issued opinions on accelerating the digital and intelligent transformation of agriculture, emphasizing the necessity of this transformation for rural revitalization and the establishment of a modern agricultural powerhouse [1] Summary by Sections Agricultural Digital Transformation Progress - During the "14th Five-Year Plan" period, China's agricultural digital transformation has encompassed the entire industry chain, including smart breeding, precision planting, intelligent breeding, digital marketing, and smart logistics [2] - The informationization rate of agricultural production increased from 25.4% in 2021 to 27.6% in 2023, with the aquaculture sector reaching a digitalization rate of 35% and field crop informationization at 26.4% [2] - The market size of China's marine smart ranching is projected to reach 60 billion yuan in 2024, with a year-on-year growth of over 30% [2] Agricultural Equipment Digitalization - China has over 100,000 demonstration sites for agricultural IoT applications, with drone application areas exceeding 2.1 billion acres [3] - The market size for smart agricultural equipment is expected to reach 11.8 billion yuan in 2024, with a year-on-year growth of 122.64% [3] - By February 2025, over 1,000 unmanned farms are expected to be established, facilitating the last mile of agricultural digitalization [3] Data Platform Development - Provincial agricultural big data platforms have been established in major agricultural production areas, integrating various data types to support agricultural production [3] - The Ministry of Agriculture and Rural Affairs has supported the establishment of 34 national digital agriculture innovation centers and 116 smart agriculture innovation application projects [3] Support for Agricultural Digitalization - Over 50 agricultural universities have established smart agriculture programs, with central government funding exceeding 50 billion yuan for smart agriculture infrastructure [4] Focus Areas for Future Development - The "15th Five-Year Plan" period will require breakthroughs in core technologies and equipment autonomy, addressing challenges in application promotion and data sharing [5] - Key focus areas include accelerating intelligent variety breeding, targeted digital transformation in specific agricultural sectors, and expanding the scale of autonomous smart agricultural equipment [6][7] - The development of facility agriculture and the establishment of high-quality smart agricultural data sets are also emphasized [8][9] Resilience Against Extreme Weather - The establishment of climate-smart agriculture demonstration zones and the development of intelligent crop breeding technologies are crucial for enhancing resilience against extreme weather [9]
东北地区唯一煤制天然气项目一期主装置全流程合拢贯通
Ke Ji Ri Bao· 2025-10-20 23:47
Core Insights - The Fuxin Coal-to-Natural Gas Project, a national-level demonstration project, has successfully completed the main installation process, marking a significant step in reducing China's dependence on foreign natural gas and promoting energy self-sufficiency and green transformation [1] Project Overview - The first phase of the project is scheduled to be operational by 2026, with an annual capacity to convert 7.5 million tons of low-rank coal into 1.33 billion standard cubic meters of natural gas [1] - The produced natural gas will supply five cities: Shenyang, Fuxin, Tieling, Fushun, and Benxi, benefiting a population of 15.96 million [1] - The project is expected to create over 2,000 jobs and generate an annual output value exceeding 4 billion yuan, with potential to surpass 6 billion yuan through the innovative "coal chemical + new energy" development model [1] Technological Advancements - The project utilizes self-developed technologies such as crushed coal pressurized gasification and efficient methane catalytic processes, achieving over 98% localization in equipment [1] - It aims to convert low-quality coal, which has high carbon emissions and is difficult to utilize directly, into clean and low-carbon natural gas [1]
全国首个750千伏输变电工程20年送电超1500亿千瓦时
Ke Ji Ri Bao· 2025-10-20 23:45
Core Insights - The Guanting-Lanzhou East Transmission and Transformation Demonstration Project marks its 20th anniversary, having transmitted over 1500 billion kilowatt-hours of electricity, significantly contributing to the development of the Yellow River cascade hydropower and the socio-economic growth of the region [1] Project Overview - The project commenced on September 19, 2003, starting from the 750 kV Guanting Substation in Minhe County, Qinghai Province, to the 750 kV Lanzhou East Substation in Yuzhong County, Gansu Province, covering a total length of 141 kilometers with a designed transmission capacity of 1500 MVA [1] - The project was completed and put into operation on September 26, 2005, enabling the first interconnection of the power grids in Shaanxi, Gansu, Qinghai, and Ningxia, laying the foundation for the northwest 750 kV main grid framework [1] Technological Impact - The project ended the history of China's power grid lacking voltage levels above 500 kV, establishing a solid foundation for the development of ultra-high voltage technology in the country [1] - Through this project, China has independently mastered all core technologies related to the design, equipment manufacturing, construction, debugging, and operation of the 750 kV power grid, forming domestic standards and technical specifications [1] - The project positioned China as one of the few countries in the world capable of complete 750 kV ultra-high voltage transmission and transformation technology, providing valuable experience for the operation of the 750 kV Xinjiang and Northwest interconnection project in 2010 [1]
青海超级镜阵高原追“光”——探访世界首个风光热储调荷多能互补项目
Ke Ji Ri Bao· 2025-10-20 23:44
Core Insights - The multi-energy complementary integrated optimization national demonstration project in Golmud, Qinghai Province, showcases advanced technology in renewable energy, combining solar, wind, thermal, and storage systems [1][2][3] Group 1: Project Overview - The project has a total installed capacity of 700,000 kilowatts, including 50,000 kilowatts of solar thermal, 200,000 kilowatts of photovoltaic, 400,000 kilowatts of wind power, and 50,000 kilowatts of energy storage [1][2] - It is the world's first project to integrate wind, solar, thermal, storage, regulation, and load, serving as a testing ground for multi-energy complementary technology [1][2] Group 2: Technological Innovations - The solar thermal project utilizes a tower system with a maximum temperature of 565 degrees Celsius, converting solar energy into high-temperature molten salt for steam generation [1][2] - The energy storage system employs lithium iron phosphate batteries, which became the largest power-side centralized electrochemical storage station in China upon its first discharge to the grid [2] Group 3: Energy Output and Efficiency - The demonstration project generates approximately 1.263 billion kilowatt-hours of electricity annually, saving about 401,500 tons of standard coal each year [2] - During periods of reduced transmission capacity, the project maintains a wind and solar abandonment rate of less than 5%, enhancing energy stability and supporting ecological development [2] Group 4: Regional Energy Landscape - Qinghai Province has abundant clean energy resources, ranking second in national solar radiation and being the fourth-largest wind farm in China, with over 100,000 square kilometers of desert land available for renewable energy development [3] - By 2024, Qinghai's total installed power capacity is expected to exceed 71 million kilowatts, with clean and renewable energy accounting for 94.6% and 70% of the total capacity, respectively [3]
钠离子电池加速从“实验室”走向“应用场”
Ke Ji Ri Bao· 2025-10-20 23:44
Core Viewpoint - The sodium-ion battery technology is advancing from laboratory testing to large-scale application, with the recent launch of the Fulin sodium-ion battery energy storage station marking a significant milestone in China's energy storage technology development [1] Group 1: Cost and Safety Advantages - Sodium-ion batteries are gaining attention due to their lower costs and higher safety compared to lithium-ion batteries, which are facing rising costs and safety issues [2] - The price of lithium hexafluorophosphate exceeded 70,000 yuan per ton, with a significant increase of 9,500 yuan (approximately 16%) in just five trading days [2] - Sodium-ion batteries exhibit better thermal stability and lower risks of thermal runaway, making them a safer alternative for energy storage [2] Group 2: Industry Development and Ecosystem - The sodium-ion battery industry in China has seen rapid development, with over 200 companies involved across the entire supply chain, including key materials, battery manufacturing, and system integration [3] - Significant breakthroughs have been made in basic research, material preparation, and battery design, leading to improved product performance and expanding application areas [3] - The Ministry of Industry and Information Technology has issued a development action plan for new energy storage manufacturing, focusing on long life, high energy density, and wide temperature range for sodium-ion batteries [3] Group 3: Commercialization Timeline - The period from 2021 to 2025 is identified as the industrialization phase for sodium-ion batteries, with 2026 expected to be a critical year for their commercial application [4] - Enhancing energy density and scaling production are essential for achieving sustainable commercialization of sodium-ion batteries in the next two to three years [4] Group 4: Technological Innovations - Research on materials such as sodium vanadium phosphate and hard carbon has led to the development of high-power sodium battery systems, with significant improvements in electrochemical performance [5][6] - Collaboration between enterprises, universities, and research institutions is encouraged to accelerate innovation and application of sodium-ion battery technologies [6] Group 5: Standardization Efforts - Establishing a standardization framework for sodium-ion batteries is crucial for guiding product quality and technological advancement in the industry [7] - The China Electronics Standardization Institute has initiated the development of industry standards, including terminology and safety requirements, to support the growth of the sodium-ion battery sector [7] - Ongoing evaluation and testing of sodium-ion battery products have shown an average energy density of 106 watt-hours per kilogram, providing a benchmark for industry performance [7][8]
时间晶体首次与外部系统稳定耦合
Ke Ji Ri Bao· 2025-10-20 23:43
Core Insights - The research team from Aalto University in Finland has successfully coupled time crystals with external systems, creating a stable optomechanical system, which opens new avenues for ultra-precise sensors and quantum computer memory units [1][2]. Group 1: Time Crystals - Time crystals are defined by their ability to maintain a lowest energy state that allows for continuous motion without external energy input, a concept proposed by Nobel laureate Frank Wilczek in 2012 [1]. - The existence of time crystals was experimentally verified in 2016, but previous attempts to couple them with external systems were unsuccessful due to the disruption of their perpetual motion characteristics [1]. Group 2: Experimental Methodology - The team utilized radio waves to inject magnetic quasiparticles into superfluid helium-3 at near absolute zero temperatures, leading to the spontaneous formation of time crystals with unprecedented stability [2]. - The time crystals maintained their motion for up to 108 cycles, approximately several minutes, before gradually becoming unobservable [2]. Group 3: Implications for Quantum Technology - The interaction between time crystals and adjacent mechanical oscillators is determined by the frequency and amplitude of the oscillators, resembling the widely used optomechanical effects in physics [2]. - The research indicates that time crystals could serve as a core memory unit for quantum computers, enhancing stability and computational efficiency, as well as acting as a frequency reference for high-sensitivity measurement instruments [2].
可完全回收的亚微米打印晶体管问世
Ke Ji Ri Bao· 2025-10-20 23:42
Core Insights - Duke University scientists have developed fully functional carbon-based transistors at the sub-micron scale using printing technology, which are comparable in performance to industry standards and fully recyclable [1] - This breakthrough could have a profound impact on the $150 billion electronic display industry and contribute positively to environmental protection [1] Group 1: Manufacturing Technology - The new printing method utilizes carbon nanotubes, graphene, and nanocellulose inks to create various thin-film transistor architectures on substrates like silicon, glass, and even paper [2] - The team overcame previous limitations of aerosol jet printing technology, which could not produce patterns smaller than 10 microns, by developing a "high-precision capillary printing" system [1][2] Group 2: Industry Impact - The new sub-micron printed TFTs are close to meeting the requirements for driving OLED displays, which require at least two transistors to control each pixel [2] - This technology could lead to disruptive changes in the electronic display field, as every electronic display contains a large array of micro thin-film transistors to control each pixel [2] Group 3: Environmental Benefits - The printing process is more energy-efficient and results in lower greenhouse gas emissions compared to traditional TFT manufacturing methods [3]
韩公布新一批创新经济先导项目
Ke Ji Ri Bao· 2025-10-20 23:42
Group 1 - The South Korean government has announced new innovation economy pilot projects, focusing on smart agriculture, smart fisheries, ultra-high-resolution satellite utilization, AI bio-ecosystem establishment, and K-beauty integrated cluster creation [1][2] - In smart agriculture, the government aims to increase the adoption rate from 16% in 2024 to 35% by 2030, with an investment of 70.5 billion KRW in the national agricultural module platform and an additional 50 billion KRW for a smart farm comprehensive fund [1] - For smart fisheries, the government plans to raise the penetration rate from 2.7% this year to 10% by 2030, designating one smart fisheries innovation pilot area and establishing a testing platform [1] Group 2 - In the satellite sector, the government is promoting the development of core technologies for ultra-high-resolution optical satellites and creating AI-based climate prediction models [1] - In the bio sector, the government plans to create an ecosystem that connects AI biotechnology accumulation, talent cultivation, and industrial expansion to better utilize existing medical data and biotechnological research capabilities [2] - The government also plans to allocate 3 billion KRW by 2026 to develop a K-beauty integrated cluster that combines experience, tourism, and industry [3]