一种煤气化渣超细粉化零废排放的综合利用工艺
By classifying and sorting coal gasification slag, and combining spiral chute, shaking table and kaolinite phase detection, high-performance foam ceramics, lightweight ceramsite and building mortar are prepared, solving the problems of low storage and utilization rate of coal gasification slag, and realizing full-scale high-value utilization and zero waste discharge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TAIYUAN UNIVERSITY OF TECHNOLOGY
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to achieve efficient sorting and full utilization of coal gasification slag, resulting in stockpiling pollution and insufficient product performance, as well as problems of high energy consumption and low utilization rate.
By classifying and processing coal gasification slag, ultrafine powder with a particle size of <1mm is separated. Combined with the sorting technology of spiral chute and shaking table, carbon-rich components are sorted and thermal energy is utilized in stages. Combined with kaolinite phase detection, high-performance foam ceramics, lightweight ceramsite and building mortar are prepared. The material properties are improved by using staged sintering and foaming processes.
It has achieved full-scale, high-value utilization of coal gasification slag, significantly improved product performance, and achieved new levels of compressive strength and water absorption. It has also achieved zero waste discharge and increased resource utilization rate, and solved the problem of coal gasification slag storage.
Smart Images
Figure CN121178554B_ABST