黑龙江省七台河市：点石成金，一座煤城的绿色蝶变

Core Insights - The article highlights the transformation of coal gangue into new building materials and energy products in Qitaihe City, Heilongjiang Province, showcasing a successful model of green development through technological innovation and policy support [1][4]. Group 1: Company Innovations - Yungao Company utilizes advanced automation production lines, consuming 700,000 tons of coal gangue annually and producing 600,000 sintered bricks daily, achieving a sales revenue of 25.3 million yuan in the first three quarters of the year, a 76% increase year-on-year [2]. - The company has implemented a circular model of "waste utilization—energy recovery—product output," significantly improving the efficiency and environmental impact of coal gangue processing [2]. - Baichun Solid Waste Resource Technology Company has developed a new technology that allows for brick production without soil and coal, fully replacing clay with coal gangue, and has processed over 10 million tons of coal gangue since its establishment [2][3]. Group 2: Technological Advancements - The establishment of the first provincial engineering technology research center for solid waste coal gangue in Heilongjiang aims to customize treatment solutions based on regional waste characteristics, enhancing the technological capabilities in the industry [3]. - A partnership with China Energy Construction Group has been formed to process 5 million tons of coal gangue annually, alongside a new project with a total investment of 350 million yuan expected to generate an annual output value of 500 million yuan [3]. Group 3: Policy Support - The local government has introduced the "Qitaihe City Coal Gangue Pollution Prevention and Comprehensive Utilization Regulations," effective from October 1, 2024, to provide legal support for industry development [4]. - Various departments have issued technical guidance and tax incentives, promoting a positive cycle of "policy guidance—enterprise innovation—market drive" [4]. - The city has significantly improved its coal gangue utilization capacity, achieving 4.45 million tons in 2023, exceeding the annual target by 360,000 tons, and has enhanced air quality and land use in previously polluted areas [4].