一种不单独配置筛分车间的I型两段一闭路破碎方法
By using a closed-loop spray dust suppression system and an adjustable-speed feeding device to create a stable material flow, combined with a dual-frequency composite vibrating screen for grading and a screen blockage risk indicator, the problems of screen surface fluctuation and blockage caused by unstable feed are solved, thus improving the continuity and reliability of the crushing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGCHUN GOLD DESIGN INST
- Filing Date
- 2026-03-10
- Publication Date
- 2026-07-17
AI Technical Summary
Under the compact Type I two-stage closed-circuit crushing conditions, the feed flow rate is unstable, resulting in uneven thickness of the screen material layer, grade drift, fluctuations in return material volume and load fluctuations in the second-stage crushing. In addition, the wet and sticky fine mud is prone to causing screen hole blockage, reducing the reliability of the entire line operation.
By implementing closed-loop spray dust suppression at unloading and transfer points, a uniform material layer is formed using an adjustable-speed feeding device. After stabilizing the material flow in the buffer silo, the material enters the dual-frequency composite vibrating screen for grading. The amount of returned material, screen vibration, and motor current are collected to generate a screen blockage risk indicator, triggering a screen cleaning sequence and linking the bypass to maintain continuous and uniform material flow.
It achieves continuous and uniform feeding of materials into the screen and stable circuit load, reduces classification drift and return material fluctuations, improves the continuity and particle size consistency of feed into the ore bin before grinding, reduces the frequency of screen blockage and shutdown, and improves the overall processing efficiency and operational reliability.
Smart Images
Figure CN121927712B_ABST