A new type of vertical mill powder concentrator labyrinth seal device
By constructing a labyrinthine layout combining an external sealing structure and an internal sealing structure, the problem of insufficient sealing stability and accuracy of the labyrinth sealing structure in the vertical mill classifier under high load is solved, achieving efficient powder classification and improved finished product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXIANG GREAT WALL MASCH CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-10
AI Technical Summary
The existing labyrinth seal structure of vertical mill classifiers is insufficient in terms of high-precision powder selection and long-term operational reliability. In particular, the stability and precision of the seal structure are difficult to meet the requirements in application scenarios with high load and low sieve residue.
The combination of external and internal sealing structures forms a labyrinthine layout with multiple annular internal seals and one external ring seal. It includes an external sealing ring plate, a third sealing ring plate, a first sealing plate, a bottom plate, a first sealing ring plate, a U-shaped sealing ring, and a second sealing ring plate, which constitute a labyrinthine sealing path. Combined with the static and dynamic sealing interface and the adjustment of the sealing ring to adjust the gap, multi-stage sealing is achieved.
It effectively improves sealing and barrier capabilities, reduces sieve residue, increases powder selection efficiency and finished product fineness, ensures long-term reliability and applicability, and is suitable for high-intensity working conditions.
Smart Images
Figure CN224479293U_ABST