Vertical Disc Mixer
Vertical Disc Mixer
The vertical disc mixer is a piece of equipment that utilizes a vertical main shaft to drive mixing arms for material blending; it is widely used in the production of organic and compound fertilizers to ensure the uniform mixing of various raw materials. Mixing arms and scrapers mounted on the main shaft rotate within a circular pan, subjecting the materials to forced convection and shear mixing. Featuring a compact structure and a small footprint, this equipment delivers excellent mixing uniformity and is a standard component of the batching and mixing stage in organic fertilizer production lines.
Working Principle
Materials are fed into the circular mixing pan from the top, while the vertical main shaft drives the rotation of the mixing arms and scrapers. Paddles on the mixing arms push the materials circumferentially, while scrapers lift materials from the pan bottom and walls, generating combined radial and axial movement. The materials undergo repeated turning, convection, and diffusion within the pan, allowing the various components to achieve a uniform mixture in a short time. Once mixing is complete, the discharge gate at the bottom of the pan is opened to release the material.
Equipment Components
Mixing Pan: Circular pan body of welded steel plate construction; features a bottom discharge gate and optional wear-resistant liners on the pan walls.
Main Shaft and Mixing Arms: Vertical main shaft fitted with multi-level mixing arms; replaceable wear-resistant paddles and scrapers are mounted at the arm ends.
Drive System: Motor drives the main shaft rotation via a gearbox; the vertical structure ensures a compact drive assembly.
Discharge Device: Pneumatic or manual bottom discharge gate; ensures smooth discharge with minimal residue.
Frame: Welded structural steel base supporting the mixing pan and drive system.
Performance Features
Uniform Mixing: Materials undergo multi-dimensional movement within the pan, ensuring even distribution of components and high-quality mixing results.
Compact Footprint: The vertical structure occupies minimal space, making it ideal for workshops with limited area.
Minimal Residue: Scrapers fit closely against the pan walls and bottom, ensuring clean discharge.
Low Energy Consumption: Operates at low shaft speeds with moderate torque, resulting in economical power consumption per unit of output.
Ease of Operation: Open-top feeding design allows for convenient material loading and cleaning.


