The CONICAL SCREW TYPE OF THE RIBBON MIXER is popularly the vertical type of cone shape vessel with either Ribbon Type Agitator or Ribbon Type agitator with screw mounted on the main vertical shaft of Cone shape Mixer.
The Vertical Ribbon Blender falls under the class of batch type mixing machine which are widely preferred across Industrial Powder Mixing Process. The name 'Vertical Ribbon Blender' or ' Conical Ribbon Blender' or ' Cone Screw Ribbon Blender' is derived because of the shape of the vessel which is cone shape and because of the agitator shaft is positioned in vertical position which is driven by gear - motor drive from the top lid mounting, this equipment is ideally known as Vertical Ribbon Blender.
The shape of Vertical Type Ribbon Blender vessel is cone shape and hence the other alternative name of Vertical Ribbon blender are Conical Ribbon Blender or Cone Ribbon Blender.
As explained above the shape of vessel is cone shape inside which Ribbon Type Agitator is fabricated in ideal design, but in other additional improved design the Vertical Ribbon Agitator also comes with Screw mounted on same agitator shaft which gives additional lift up of the feed material and hence in this case it is also known as Cone Screw Ribbon blender (Vertical ribbon agitator with Screw).
The Vertical Ribbon Blender is worldwide popular for its gentle mixing action, less heat generation, less mixing cycle time, less energy consumption, minimum damage to powder particles, 100 % discharge due to gravity, and easy cleaning procedure. This type of Conical Shape Ribbon Blender or Cone Screw Ribbon Mixer are mostly preferred in the industry where the mixing of multiple types of powder solid ingredients, or semi solid needs to be conducted in accurately and precisely manner with maintaining the consistent quality output per each batch of formulation. Advantage of Vertical Ribbon blender over Horizontal Ribbon Blender is the easy cleaning procedure and 100 % discharge per each batch which is promising factor of consideration while selecting batch mixing equipment.
The VERTICAL RIBBON BLENDER OR CONICAL SCREW RIBBON MIXER consists of the Vertical Cone Shape of the Vessel inside which the Spiral Helix or Ribbon are fabricated accurately on the vertical shaft of mixer. The Vertical Ribbon Shaft rotates inside the designated cone shape vessel at specific rpm requirement according to feed material type and its chemical and physical properties.
The rotating shaft of Vertical Spiral Ribbon Agitator of this mixer lifts the raw material from the bottom of the Vessel and conveys the feed and lift it to the upward direction in cone shape vessel. The shape of vessel plays the primary role during the mixing action which ultimately creates the convective action of mixing of raw materials inside the Cone Shape Mixing Vessel.
The triple mixing action or Convective mixing effect in the Vertical Ribbon Blender (Conical Screw Ribbon Mixer) is generated by below mentioned three components.
In the first instance, the spiral helical ribbon rotates inside the cone shape vessel with lowest clearance with vessel body and give the upward flow motion of feed material by the axial movement along with conveying the material to the upper surface inside the vessel. But due to the effect of gravity material falls downward from the inner spaces between main shaft and ribbon and the counter flow of material begins simultaneously. The material which falls downward gets recalculated instantly and the speed of recirculation of the material increases with the decrease of the diameter of the vessel. So along with these two different opposite as well as simultaneous flow and movement of the material generated by rotating ribbon shaft, the screw mounted on the same shaft also provided the additional agitation. This triple action of the material inside the Vertical Ribbon Mixer also helps to consume less energy and lesser heat generation.