Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention provides a method for producing mullite powder through microwave heating of coal gangue, and belongs to the technical field of solid waste utilizing.The method comprises the steps that the coal gangue is sequentially subjected to first microwave radiation and crushing, and crushed coal gangue is obtained; roasting the crushed coal gangue under the action of second microwave radiation to obtain coal gangue clinker; the coal gangue clinker is sequentially subjected to grinding and magnetic separation, and mullite powder is obtained. The coal gangue is subjected to microwave radiation before crushing, so that the internal structure of the coal gangue is destroyed, the hardness of the coal gangue is reduced, the coal gangue is easy to crush, and the crushing energy consumption is reduced; a microwave direct heating method is adopted in later roasting, so that the roasting time is shortened, the roasting energy consumption is reduced, and the obtained mullite powder is good in quality.
本发明提供了一种微波加热煤矸石生产莫来石粉的方法，属于固废利用技术领域，本发明将煤矸石依次进行第一微波辐射和破碎，得到煤矸石碎料；将所述煤矸石碎料在第二微波辐射作用下进行焙烧，得到煤矸石熟料；将所述煤矸石熟料依次进行研磨和磁选，得到莫来石粉。本发明在破碎前对煤矸石进行微波辐射，破坏了煤矸石内部结构，降低了煤矸石的硬度，使其易于破碎，降低破碎能耗；后期焙烧采用微波直接加热的方法，缩短焙烧时间，降低焙烧能耗，所得莫来石粉质量好。
The invention provides a method for producing mullite powder through microwave heating of coal gangue, and belongs to the technical field of solid waste utilizing.The method comprises the steps that the coal gangue is sequentially subjected to first microwave radiation and crushing, and crushed coal gangue is obtained; roasting the crushed coal gangue under the action of second microwave radiation to obtain coal gangue clinker; the coal gangue clinker is sequentially subjected to grinding and magnetic separation, and mullite powder is obtained. The coal gangue is subjected to microwave radiation before crushing, so that the internal structure of the coal gangue is destroyed, the hardness of the coal gangue is reduced, the coal gangue is easy to crush, and the crushing energy consumption is reduced; a microwave direct heating method is adopted in later roasting, so that the roasting time is shortened, the roasting energy consumption is reduced, and the obtained mullite powder is good in quality.
本发明提供了一种微波加热煤矸石生产莫来石粉的方法，属于固废利用技术领域，本发明将煤矸石依次进行第一微波辐射和破碎，得到煤矸石碎料；将所述煤矸石碎料在第二微波辐射作用下进行焙烧，得到煤矸石熟料；将所述煤矸石熟料依次进行研磨和磁选，得到莫来石粉。本发明在破碎前对煤矸石进行微波辐射，破坏了煤矸石内部结构，降低了煤矸石的硬度，使其易于破碎，降低破碎能耗；后期焙烧采用微波直接加热的方法，缩短焙烧时间，降低焙烧能耗，所得莫来石粉质量好。
Method for producing mullite powder by microwave heating of coal gangue
一种微波加热煤矸石生产莫来石粉的方法
21.03.2023
Patent
Elektronische Ressource
Chinesisch
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