Working principle of double helix cone mixer
The working principle of the double helix cone mixer can be clearly divided into the following points:
Basic structure and movement mode:
The double helix conical mixer consists of a conical mixing cylinder and two asymmetric spirals.
Two spirals rotate on their own inside the mixing cylinder, while the rotating arm drives the spirals to revolve, allowing materials outside the spirals to enter the screw column to varying degrees, achieving continuous renewal and diffusion of materials in all directions around the circumference.
Material movement and mixing process:
Spiral rotation: The material rises along the spiral from the bottom of the cone, forming a convective cycle.
Spiral revolution: causes the material to move in a circular motion along the cone wall, increasing the mutual contact and collision between materials.
Composite of revolution and rotation: The material is absorbed into the spiral cylindrical surface and is simultaneously subjected to the centrifugal force of the spiral rotation, causing the material to be discharged radially towards the cone.
Material descent: The rising material descends due to its own gravity, forming a triple mixing effect of convective circulation.
Mixing effect:
Through the above motion, the material undergoes a composite motion of convection, shear, diffusion, and infiltration in the mixer, thus quickly achieving uniform mixing.
Features and advantages:
Advanced structure, easy operation, safe and reliable operation.
The cantilevered double helix shaft has no bottom bearing, reducing the failure rate.
The double helix asymmetric arrangement expands the mixing range and is suitable for mixing materials with significant differences in specific gravity and mixing ratios.
The energy-saving effect is significant, with energy consumption only one tenth of that of drum mixers.
The wear and pressure feedback of granular materials are minimal, and there is no overheating reaction when mixing thermosensitive materials.
The mixed formulation is stable and does not exhibit stratification or segregation.
Application areas:
Double helix cone mixer is widely used in industries such as pharmaceuticals, chemicals, food, metallurgy, etc., for mixing various powders and granular materials.
In summary, the double helix conical mixer generates a composite motion of convection, shear, diffusion, and infiltration of materials inside the mixer through the rotation and revolution of the helix, thereby achieving rapid and uniform mixing of materials. Its unique structure and movement make it widely used in multiple industries.
