Understanding your material’s flow properties can simplify blender selection by enabling you to predict the material’s behavior in various blender types. This informative article focuses on three conditions required for blending efficiency-a lack of stagnant regions, distinctions in movement velocities, and a absence of segregation- and how to match your substance properties to a blender food processor combo to achieve these conditions.
Choosing the right blender for your materials can be a difficult and frustrating job. Vendors claim their food processors work efficiently, and their claims are generally true, provided the blenders are effectively chosen for your materials. But if you change materials or your material formula, or if you select a blender that’s created for materials other than the people you’re blending, you can run into trouble. A materials specialist or measurements depending on your material’s flow properties’ can help you match your material with a blender.
Three conditions must exist for a blender to operate successfully. First, the blender must have no stagnant regions. Next, the blender must promote different flow velocities in a variety of sections of the blender. Third, blender procedure must not segregate, or de-mix, mixture ingredients.
Stagnant locations are areas where materials can sit undisturbed and not enter the mixing process, thus preventing complete combining from taking place. They will exist in the free-board area (the area between the material bed’s surface and the most notable of the blender) and the area between the agitator blades and blender walls. Minimal flow channels, where materials remain segregated in tiers or channels during blending, can also produce stagnant regions.
The effect of stagnant regions depends upon the mixture and the flow properties of its individual ingredients. For example , using a gravity-flow tube blender to combine cohesive materials brings about secure rathole formation around each tube inlet and damages blender effectiveness. But combining free- flowing materials in this blender will not cause rathole formation.
An air blender, plow or paddle blender, or even a ribbon blender operating at a top number of revolutions per minute can whack fine particles into the air and cause them to adhere to the freeboard surfaces if the fine material is adhesive. In an air food blender, vibrators or special films and liners can prevent material accumulation in these regions. These remedies not necessarily practical for plow, exercise, or ribbon blenders, so it’s best to avoid the condition by choosing another blender for adhesive materials.
Tumble blenders rely on continual pile formation and avalanche flow in a little region over the substance pile in the ship to mix material. A great excessively cohesive material will create thick avalanche layers with little inter-particle motion. The result is stagnant regions that reduce blender effectiveness. However, a totally free-flowing material can have very thin avalanching specific zones and also have less-than-optimal inter-particle action. This, too, produces food blender inefficiencies. A tumbler blender works best with components which may have similar angles of repose and only enough cohesiveness to prevent going.
Differences in flow velocities promote mixing. Some blenders include mechanisms designed to produce different flow velocities in the material during functioning. For example, the gravity mass-flow cone-in-cone blender promotes a faster velocity in the heart of the vessel than quietly. This flow blending speed profile extends up from the cone-in-cone hopper about one hopper diameter high, typically resulting in a short, squat, low-volume mixer. Using a cylinder-in-cylinder retrofit inside the blender’s up and down portion above the cone-in-cone hopper section extends the blending profile far upwards into the vertical area. This may maintain a 5-to-1 height-to-diameter velocity profile percentage. Thereby allowing larger blender volumes.