1. What is a ribbon blender : definition
Ribbon blenders are made of shell having a U shape in which is rotating an agitator. The agitator is designed as a double helical ribbon which allows to create convective movement of the materials in 2 directions achieving mixing of powders and bulk solids.
Ribbon mixers are very widespread in process industries for bulk solids dry Mixing. Although other Mixers designs exist which are over-performing ribbon blenders in some areas (mixing speed, hygienic design…), ribbon blenders are still a very simple and robust solution to mix dry materials offering decent mixing performances which are sufficient for many applications. It is not rare to have 40-50 years old industrial ribbon blenders in factories, still perfectly operational. Many manufacturers propose industrial ribbon blenders, from few hundreds liters to several cubic meters.
1. Ribbon blender working principle
Horizontal ribbon blender working Principle. No Gravity Mixer Horizontal cylinder with bi axial rotation reverse the pulp, the blade into a certain angle of the material along the axial, radial cycle stir, so that the material quickly mixed evenly The speed of the shaft and the structure of the blade will weaken the weight of the material. With the lack of gravity, the difference of the particle size and the proportion of the material is neglected during the mixing process. The intense mixing movement shortens the time of mixing, faster and more efficiently. Even if the material has a specific gravity, the difference in particle size, in the staggered arrangement of the stirring blade quickly under the sudden somersault throwing, but also to achieve a good mixing effect.
2. Ribbon blender discharge
Horizontal ribbon mixer discharge way : use of pneumatic materials in the form of large open door, with the discharge of fast, no residue, etc.; high-fineness of materials or semi-fluid materials using manual butterfly valve or pneumatic butterfly valve, manual butterfly valve , Pneumatic butterfly valve on the semi-fluid seal is good, but the cost is higher than the manual butterfly valve. In the case of heating or cooling, the jacket can be configured. Heating methods are electric heating and heating oil heating two options: electric heating convenient, but the heating rate is slow, high energy consumption; heat oil heating need to configure the oil pan and oil power, pipe, investment, but the heating speed , Low energy consumption. Cooling process can be directly into the jacket into the cooling water, jacket heat transfer area, cooling speed. Motor and stirring between the spindle through the cycloid reducer direct connection, simple structure, high reliability, easy maintenance.
3. Ribbon blender application
Ribbon blender machine widely used in pesticides, veterinary drugs, food, chemicals, biological, aquaculture, ceramics, refractories, plastics, fertilizer and other solid – solid (ie powder and powder) solid – And glue slurry), but also particularly suitable for thick material mixing.