A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Process for preparing baking-free brick from aluminum ash
The invention provides a process for preparing a baking-free brick from aluminum ash. The process is characterized by comprising the following steps: step one, pre-treating aluminum ash; step two, mixing raw materials; step three, carrying out compression molding; and step four, curing. Harmful elements are effectively removed by pre-treating the aluminum ash, useful components in the aluminum ashare maximally recycled, a metal aluminum sheet is obtained in the ball-milling and screening section, and re-melted aluminum with a high additional value is obtained through treatment of the metal aluminum sheet; centralized recovery of ammonia gas is realized through water leaching and de-amination, atmospheric pollution caused in the stacking process of aluminum ash is avoided; the fluoride isfixed, the harm to underground water and soil in the aluminum ash stacking process is avoided; high-aluminum waste residues obtained after de-amination and fluorine fixation are used as raw materialsfor producing baking-free bricks, harmless treatment of aluminum ash is realized, aluminum ash is converted into resources, and benefits are generated. The method for preparing a baking-free brick issimple and convenient in technological process, mild in operation condition, less in investment and low in production cost, and meanwhile, the prepared baking-free brick is excellent in performance.
本发明提供一种以铝灰制备免烧砖的工艺，其特征在于包括以下工序：工序一铝灰预处理、工序二原料混合、工序三压制成型及工序四养护；本发明方法通过对铝灰的前处理将有害元素有效根除，最大限度地回收了铝灰中的有用成分，球磨筛分工段得到金属铝片，其经过处理得到附加价值较高的重熔铝；水浸脱氨实现了氨气的集中回收，这避免了铝灰堆放过程中带来的大气污染；氟化物的固定避免了铝灰堆放过程中对地下水及土壤的危害；脱氨固氟后得到的高铝料废渣作为生产免烧砖的原料，实现了铝灰处理的无害化、资源化和效益化；本发明方法制备免烧砖的工艺过程简便，操作条件温和，投资少，生产成本低，同时制得的免烧砖性能优良。
Process for preparing baking-free brick from aluminum ash
The invention provides a process for preparing a baking-free brick from aluminum ash. The process is characterized by comprising the following steps: step one, pre-treating aluminum ash; step two, mixing raw materials; step three, carrying out compression molding; and step four, curing. Harmful elements are effectively removed by pre-treating the aluminum ash, useful components in the aluminum ashare maximally recycled, a metal aluminum sheet is obtained in the ball-milling and screening section, and re-melted aluminum with a high additional value is obtained through treatment of the metal aluminum sheet; centralized recovery of ammonia gas is realized through water leaching and de-amination, atmospheric pollution caused in the stacking process of aluminum ash is avoided; the fluoride isfixed, the harm to underground water and soil in the aluminum ash stacking process is avoided; high-aluminum waste residues obtained after de-amination and fluorine fixation are used as raw materialsfor producing baking-free bricks, harmless treatment of aluminum ash is realized, aluminum ash is converted into resources, and benefits are generated. The method for preparing a baking-free brick issimple and convenient in technological process, mild in operation condition, less in investment and low in production cost, and meanwhile, the prepared baking-free brick is excellent in performance.
本发明提供一种以铝灰制备免烧砖的工艺，其特征在于包括以下工序：工序一铝灰预处理、工序二原料混合、工序三压制成型及工序四养护；本发明方法通过对铝灰的前处理将有害元素有效根除，最大限度地回收了铝灰中的有用成分，球磨筛分工段得到金属铝片，其经过处理得到附加价值较高的重熔铝；水浸脱氨实现了氨气的集中回收，这避免了铝灰堆放过程中带来的大气污染；氟化物的固定避免了铝灰堆放过程中对地下水及土壤的危害；脱氨固氟后得到的高铝料废渣作为生产免烧砖的原料，实现了铝灰处理的无害化、资源化和效益化；本发明方法制备免烧砖的工艺过程简便，操作条件温和，投资少，生产成本低，同时制得的免烧砖性能优良。
Process for preparing baking-free brick from aluminum ash
以铝灰制备免烧砖的工艺
ZHU ZHIWEI (author)
2020-05-15
Patent
Electronic Resource
Chinese
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