Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing cement and co-producing sulfuric acid by reducing gypsum through sulfur plasma flow
The invention relates to a method for preparing cement and co-producing sulfuric acid by reducing gypsum with sulfur plasma flow, which comprises the following steps: after sulfur plasma is formed, the sulfur plasma flow is used as a reducing agent to reduce and decompose gypsum in a cement raw material, cement clinker is formed through high-temperature sintering, and meanwhile, high-concentration SO2 flue gas is obtained and is used for subsequently preparing the sulfuric acid from the flue gas. Compared with the prior art, the method provided by the invention can effectively improve the decomposition efficiency and production efficiency of gypsum, not only can consume a large amount of industrial solid waste gypsum, but also can save limestone and natural gypsum resources and reduce carbon emission in cement production, and meanwhile, can obtain various high-quality cement and industrial sulfuric acid products; the method is simple in process, high in system control index implementation, convenient to operate, run and manage, advanced in process equipment, low in device investment, low in energy consumption, low in running cost, high in automation degree and low in carbon emission; and low-carbon, high-quality, high-efficiency, high-value and large-scale utilization of resources such as bulk solid waste gypsum, coal gangue and red mud can be realized.
本发明涉及一种硫等离子体流还原石膏制水泥联产硫酸的方法，该方法为：将硫磺等离子化后，以硫等离子体流为还原剂，对水泥生料中的石膏进行还原分解，再经高温烧结形成水泥熟料，同时获得高浓度SO2烟气，用于后续烟气制硫酸。与现有技术相比，本发明方法可有效提高石膏的分解效率和生产效能，既可大量消耗工业固废石膏，又可节省石灰石和天然石膏资源，减少水泥生产碳排放，同时能获得多种高品质水泥和工业硫酸产品，流程简单、系统控制指标可实施性强、操作运行管理方便、工艺设备先进、装置投资省、能耗低、运行成本低、自动化程度高、碳排放量低；可实现大宗固废石膏、煤矸石、赤泥等资源的低碳、高质、高效、高值和规模化利用。
Method for preparing cement and co-producing sulfuric acid by reducing gypsum through sulfur plasma flow
The invention relates to a method for preparing cement and co-producing sulfuric acid by reducing gypsum with sulfur plasma flow, which comprises the following steps: after sulfur plasma is formed, the sulfur plasma flow is used as a reducing agent to reduce and decompose gypsum in a cement raw material, cement clinker is formed through high-temperature sintering, and meanwhile, high-concentration SO2 flue gas is obtained and is used for subsequently preparing the sulfuric acid from the flue gas. Compared with the prior art, the method provided by the invention can effectively improve the decomposition efficiency and production efficiency of gypsum, not only can consume a large amount of industrial solid waste gypsum, but also can save limestone and natural gypsum resources and reduce carbon emission in cement production, and meanwhile, can obtain various high-quality cement and industrial sulfuric acid products; the method is simple in process, high in system control index implementation, convenient to operate, run and manage, advanced in process equipment, low in device investment, low in energy consumption, low in running cost, high in automation degree and low in carbon emission; and low-carbon, high-quality, high-efficiency, high-value and large-scale utilization of resources such as bulk solid waste gypsum, coal gangue and red mud can be realized.
本发明涉及一种硫等离子体流还原石膏制水泥联产硫酸的方法，该方法为：将硫磺等离子化后，以硫等离子体流为还原剂，对水泥生料中的石膏进行还原分解，再经高温烧结形成水泥熟料，同时获得高浓度SO2烟气，用于后续烟气制硫酸。与现有技术相比，本发明方法可有效提高石膏的分解效率和生产效能，既可大量消耗工业固废石膏，又可节省石灰石和天然石膏资源，减少水泥生产碳排放，同时能获得多种高品质水泥和工业硫酸产品，流程简单、系统控制指标可实施性强、操作运行管理方便、工艺设备先进、装置投资省、能耗低、运行成本低、自动化程度高、碳排放量低；可实现大宗固废石膏、煤矸石、赤泥等资源的低碳、高质、高效、高值和规模化利用。
Method for preparing cement and co-producing sulfuric acid by reducing gypsum through sulfur plasma flow
硫等离子体流还原石膏制水泥联产硫酸的方法
ZHANG GUOXING (Autor:in) / ZHAO BO (Autor:in) / PANG RENJIE (Autor:in) / CHEN YANXIN (Autor:in) / CHU XUEQUN (Autor:in) / HAN DING (Autor:in) / ZHANG ZHIYUAN (Autor:in)
27.08.2021
Patent
Elektronische Ressource
Chinesisch
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