分级筛分式球磨机排料装置
By adding a cylindrical screen and a spiral at the discharge end of the ball mill, the problem of mixing coarse and fine materials in the ball mill discharge structure was solved, realizing dynamic screening and automatic diversion, and improving production efficiency and equipment utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENGYANG WEIYE METALLURGICAL & MINING MASCH CO LTD
- Filing Date
- 2025-10-09
- Publication Date
- 2026-07-17
AI Technical Summary
The discharge structure of existing ball mills leads to the mixing of coarse and fine materials, requiring reliance on external screening equipment, increasing equipment investment and energy consumption, and making it difficult to achieve synchronous grading and diversion in continuous production.
A cylindrical screen is added to the discharge end of the ball mill, and a spiral is installed on its inner wall. Dynamic screening is achieved by using rotational power. Fine particles are discharged through the screen holes, while coarse particles are intercepted and automatically conveyed to an independent discharge port.
It enables simultaneous grading and diversion of coarse and fine materials, optimizes the process flow, improves grinding efficiency, reduces energy consumption and equipment footprint, and supports continuous production.
Smart Images
Figure CN224507232U_ABST
Abstract
Claims
1. A discharge device for a grading and screening ball mill, comprising a discharge hood (1) and a discharge connecting cylinder (2) rotatably disposed inside the discharge hood (1), wherein the cylinder wall of the discharge connecting cylinder (2) is provided with a plurality of discharge holes (2a), characterized in that: The outer periphery of the discharge connecting cylinder (2) is fitted with a cylindrical screen (3) that is coaxial with it and can rotate synchronously. The cylindrical screen (3) has screen holes (3a) on its cylindrical wall and raised spiral lines (3b) on its inner circumference. The cylindrical screen (3) is set inside the discharge cover (1) to cover all the discharge holes (2a), and the right end of the cylindrical screen (3) is an open end. The bottom of the discharge cover (1) is provided with a fine ore discharge port (1a) corresponding to the position of the cylindrical screen (3). The bottom of the discharge cover (1) is provided with a discharge hopper corresponding to the open position of the right end of the cylindrical screen (3). The bottom end of the discharge hopper is provided with a coarse ore discharge port (1b).
2. The discharge device for a grading and screening ball mill according to claim 1, characterized in that: The cylindrical sieve (3) is a conical cylinder whose diameter gradually decreases from left to right.
3. A classification screen mill discharge arrangement according to claim 2, characterised in that: The spiral direction of the spiral (3b) is configured such that when the cylindrical screen (3) rotates, it can guide the material to move from the left end to the right end of the cylindrical screen (3).
4. A classification screen mill discharge arrangement according to claim 1, characterised in that: The left end of the cylindrical sieve (3) is closed by an end cap (3c).
5. A classification screen mill discharge arrangement according to claim 4, characterised in that: The end cap (3c) is fixedly connected to the outer wall of the discharge connecting cylinder (2) via a flange (4) to achieve synchronous rotation of the cylindrical screen (3) and the discharge connecting cylinder (2).