Ribbon blenders come in vertical and horizontal mounting options, and the type and size of the machine is chosen based on the materials being processed and the space limitations of the bulk handling facility. The ribbon in the blender is set in a Ushaped trough. The screwing motion caused by the ribbon pulls material through this trough and then lifts it up, slowly forming a pile.
After they have been picked up, materials blend by falling together into this pile. Once the blending process is finished, materials can be discharged from the ribbon blender by opening the door on the bottom of the tank. This door is opened using a lever or automated controls. The blender remains on as the door is opened, and materials fall through to a bin below as they are pushed by the ribbon to the centre of the tank where the opening is. After the machine has been turned off, the access door can be opened and all of the parts can be cleaned.
Like most bulk material handling equipment, ribbon blenders are often constructed using stainless steel. Not only is this material strong and highly resistant to corrosion, but it is also very easy to clean. In some facilities, cross-contamination of ingredients is a major concern, so machines are all cleaned between batches.
Ribbon blenders are used in many industries; from food to pharmaceuticals to cosmetics. Because of their balanced blending abilities and consistent mixing quality, ribbon blenders are an excellent choice for many bulk material handling facilities.
The range of sizes created by blender manufacturers make it possible for both small and large plants to utilize the efficiency of a ribbon blender in whatever space they have available.