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A platform for research: civil engineering, architecture and urbanism
Comprehensive utilization process method of bulk coal gangue
The invention discloses a comprehensive utilization process method for bulk coal gangue, and belongs to the technical field of coal treatment. The method comprises the working procedures of coal gangue crushing, screening, fluidized bed sintering, grain size distribution, ceramsite production and the like. The core idea of the method is that granular coal gangue is rapidly sintered by using a fluidized bed, the mechanical strength, thermal stability and the like of coal gangue particles are rapidly improved, and the product quality can reach the first-grade building sand standard. According to the method, the coal gangue solid waste can be efficiently converted into building sand with large market demand by utilizing the characteristics of high heat exchange rate, large yield, uniform particle heating and the like of the fluidized bed, and the method is an effective treatment method for bulk coal gangue. Meanwhile, the coal gangue fine powder beyond the particle size range of the building sand can be mixed with fly ash and other solid wastes to prepare ceramsite products with various functions, or the ceramsite products are directly sintered into materials for spraying by a fluidized bed. Therefore, the process method can be used for completely absorbing the coal gangue and producing high-quality building sand, coating, functional ceramsite and other products which are high in market consumption.
本发明公开了一种大宗煤矸石综合利用工艺方法，属于煤炭处理技术领域。该方法包括煤矸石的破碎、筛分、流化床烧结、粒度级配和陶粒生产等工序。该方法核心思想是用流化床对颗粒状煤矸石进行快速烧结，快速提高煤矸石颗粒的机械强度和热稳定性等，产品质量可达到一级建筑用砂标准。该方法利用流化床热交换速率快、产量大以及颗粒受热均匀等特点，可将煤矸石固体废弃物高效转化成市场需求量大的建筑用砂，是大宗煤矸石的有效处理方法。同时，建筑用砂粒度范围之外的煤矸石细粉可与粉煤灰等其他固废混合制备具备各种功能的陶粒产品，或直接用流化床烧结成喷涂用的材料。因此，该工艺方法能完全消纳煤矸石，生产出市场用量大的优质建筑用砂、涂料及功能陶粒等产品。
Comprehensive utilization process method of bulk coal gangue
The invention discloses a comprehensive utilization process method for bulk coal gangue, and belongs to the technical field of coal treatment. The method comprises the working procedures of coal gangue crushing, screening, fluidized bed sintering, grain size distribution, ceramsite production and the like. The core idea of the method is that granular coal gangue is rapidly sintered by using a fluidized bed, the mechanical strength, thermal stability and the like of coal gangue particles are rapidly improved, and the product quality can reach the first-grade building sand standard. According to the method, the coal gangue solid waste can be efficiently converted into building sand with large market demand by utilizing the characteristics of high heat exchange rate, large yield, uniform particle heating and the like of the fluidized bed, and the method is an effective treatment method for bulk coal gangue. Meanwhile, the coal gangue fine powder beyond the particle size range of the building sand can be mixed with fly ash and other solid wastes to prepare ceramsite products with various functions, or the ceramsite products are directly sintered into materials for spraying by a fluidized bed. Therefore, the process method can be used for completely absorbing the coal gangue and producing high-quality building sand, coating, functional ceramsite and other products which are high in market consumption.
本发明公开了一种大宗煤矸石综合利用工艺方法，属于煤炭处理技术领域。该方法包括煤矸石的破碎、筛分、流化床烧结、粒度级配和陶粒生产等工序。该方法核心思想是用流化床对颗粒状煤矸石进行快速烧结，快速提高煤矸石颗粒的机械强度和热稳定性等，产品质量可达到一级建筑用砂标准。该方法利用流化床热交换速率快、产量大以及颗粒受热均匀等特点，可将煤矸石固体废弃物高效转化成市场需求量大的建筑用砂，是大宗煤矸石的有效处理方法。同时，建筑用砂粒度范围之外的煤矸石细粉可与粉煤灰等其他固废混合制备具备各种功能的陶粒产品，或直接用流化床烧结成喷涂用的材料。因此，该工艺方法能完全消纳煤矸石，生产出市场用量大的优质建筑用砂、涂料及功能陶粒等产品。
Comprehensive utilization process method of bulk coal gangue
一种大宗煤矸石综合利用工艺方法
FU LIANGLIANG (author) / BAI DINGRONG (author) / CHENG JIGUANG (author) / BAI HAOLONG (author) / JIA XIN (author) / XU GUANGWEN (author)
2022-10-11
Patent
Electronic Resource
Chinese
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