How It Works
Ribbon Blenders
Ribbon Blenders consist of a U-shaped horizontal trough and a specially fabricated ribbon agitator. A ribbon agitator consists of a set of inner and outer helical agitators. The outer ribbon moves materials in one direction and the inner ribbon moves the materials in the opposite direction. The ribbons rotate at approx. 300 fpm moves materials both radially and laterally to insure thorough blends in short cycle times. Ribbon agitators are used for blends that will be between 40 and 100% of the rated capacity of the blender.
An alternate agitator is our paddle design. The paddles are positioned to move materials in opposing lateral directions and radially. The paddle design is normally applied where friable materials are being blended and when batches as small as 15% of the total capacity are going to be mixed in one blender.
Ribbon and Paddle designs are available in working capacities to over 515 cu.ft. and in either center or end discharge designs.
Vertical Blenders
Vertical Blenders are an excellent design alternative for applications that are shear sensitive or where space on the plant floor is at a minimum.
The gentle blending action of the slow turning blending screw is far gentler than that of a horizontal blender. The blending screw orbits the conical vessel wall while it turns and gently lifts material upward. The materials are then thrust at the upper most batch level towards the center of the vessel, and then move slowly back down the center, while mixing with materials being moved upward by the orbiting screw.
When compared to horizontal blenders this design has several advantages:
- Gentle blending action is ideal for friable or shear sensitive materials.
- One blender can be used for a wide range of batch sizes, ranging from as small as 10% of the rated capacity.
- Nearly 100% of the blended materials are discharged through the bottom valve after completion of the blend cycle.
- Use nearly 50% less power per unit being blended.
- Less floor-space and are ideally suited to multi-story facilities.
V Blenders
Ross V-Blenders are most often used for the intimate dry blending of free flowing solids. The solids being blended in these units can vary in bulk density and in percentage of the total mixture. Materials being blended are constantly being split and intermixed as the shell rotates. Normal cycle times are typically in the range of 15 minutes, however can be less depending on the difficulty of blending.
All Ross V-Blenders are supplied with Intensifier bars to permit deagglomeration as needed. Discharge is accomplished through a manually operated Butterfly valve. The valve is positioned 24" from the floor when in the bottom position. Safety railings and appropriately interlocked safety interlocks. Stop-Start and E-Stop Pushbuttons are included with all blenders.
Double Cone Blenders
Ross Double Cone Blenders design is most often used for the intimate dry blending of free flowing solids. The solids being blended in these units can vary in bulk density and in percentage of the total mixture. Materials being blended are constantly being intermixed as the Double Cone rotates. Normal cycle times are typically in the range of 10 minutes, however they can be less depending on the difficulty of blending.
All Ross Double Cone Blenders are supplied with Intensifier bars to permit deagglomeration as needed. Discharge is accomplished through a manually operated Butterfly valve. The valve is positioned 24" from the floor when in the bottom position. Safety railings and appropriately interlocked safety interlocks. Stop-Start and E-Stop Pushbuttons are included with all blenders.