Method for preparing foamed ceramic filter from all-component high-dosage waste chrome corundum: Fid-Bau Portal

Method for preparing foamed ceramic filter from all-component high-dosage waste chrome corundum

LONG LIANG / LI SHIGENG / GUO HAITAO / ZHU JIANBIN / LIU YANGMING

The invention provides a method for preparing a foamed ceramic filter from all-component high-dosage waste chrome corundum, and relates to the field of foamed ceramics. The method comprises the following steps: grinding the waste chrome corundum, and then sieving by a 200-mesh sieve to obtain coarse particles and fine particles; mixing the first raw materials, granulating, performing first sintering, and then performing first cooling and first crushing to obtain first powder; mixing the second raw materials, performing second sintering, and then performing second cooling and second crushing to obtain second powder; mixing the first powder and the second powder, performing third sintering, and then performing third cooling and third crushing to obtain third powder; mixing the third powder and water to obtain slurry, dipping the slurry by taking soft polyurethane foam as a carrier, and then pressing and drying to obtain a blank; and performing fourth sintering and fourth cooling on the blank to obtain the foamed ceramic filter. According to the method, the waste chrome corundum can be used in all components, the use amount is large, and the utilization rate of the waste chrome corundum is effectively increased.

本申请提供一种全组分大掺量利用废铬刚玉制备泡沫陶瓷过滤器的方法，涉及泡沫陶瓷领域。该方法包括：将废铬刚玉进行研磨，然后200目筛筛分得到粗颗粒和细颗粒；将第一原料混合，造粒后进行第一烧结，然后进行第一冷却和第一粉碎得到第一粉料；将第二原料混合，进行第二烧结，然后进行第二冷却和第二粉碎得到第二粉料；将第一粉料和第二粉料混合，进行第三烧结，然后进行第三冷却和第三粉碎得到第三粉料；将第三粉料和水混合得到浆料，以软质聚氨酯泡沫为载体浸渍所述浆料，然后压制、干燥得到坯料；将所述坯料进行第四烧结、第四冷却得到泡沫陶瓷过滤器。本申请提供的方法，能够全组分使用废铬刚玉，使用量大，有效提高废铬刚玉利用率。

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