A multi-stage cooling and resource utilization system and method for liquid slag in a thermal power plant
By using a multi-stage cooling system and cascade waste heat recovery technology, the problems of incomplete cooling and insufficient resource utilization of liquid slag have been solved, achieving efficient cooling and high-value resource utilization, and improving the efficiency of waste heat utilization and the economic value of slag particles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIAN THERMAL POWER RES INST CO LTD
- Filing Date
- 2026-06-04
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for cooling liquid slag are limited to a single method, lack a systematic cooling solution, have incomplete waste heat recovery, and result in low levels of resource utilization of cooled slag particles. They have failed to integrate multi-stage cooling with cascaded waste heat recovery and graded high-value utilization of slag particles.
A multi-stage cooling system is adopted, including granulation cooling, solid-phase heat exchange and fluidization cooling, combined with waste heat cascade utilization and slag resource utilization units. The liquid slag is cooled in multiple stages through centrifugal force and high-pressure cooling airflow, and is recycled and utilized in stages according to temperature and grade, and the cooled slag particles are processed in stages.
It achieves efficient cooling of liquid slag across the entire temperature range, recovers waste heat in stages, improves waste heat utilization efficiency, and transforms cooled slag particles into high-value-added building materials, reducing environmental pollution and water consumption.
Smart Images
Figure CN122408366A_ABST