All bulk material manufacturing processes require equipment that can add value to your raw material inputs. If powder processing equipment such as pin mills, lump breakers, classifiers, mixers and extruders are the engines of your manufacturing process, then material conveying and feeding systems certainly are the infrastructure that ties everything together. However, there is often confusion between the terms screw conveyor, screw feeder, vibrating conveyor and vibrating feeder. For the purpose of this article, we are going to focus on the two main types of feeders: screw feeders and vibrating feeders. We will also define exactly what is powder feeding equipment and how to choose the best type of equipment based on your materials.
If you are looking for more details, kindly visit Zoneding machine.
First let&#;s define what feed equipment is not. Material feeding equipment, also called powder dosing equipment, is not a conveying system. Mechanical conveyors, such as screw conveyors (also called auger conveyors) and vibratory conveyors, typically consist of one inlet and an outlet purely for the purpose of moving material from point A to point B over longer distances. They usually run at a fixed rate and move material downline at a constant throughput measured in pounds or kilograms per hour.
In contrast, feeding equipment is used in situations where more control and precision of the material flow rate is required. Also, screw feeders and vibratory feeders are not for moving material over longer distances, rather they are used to dose material from a hopper or IBC tote into a packaging line, or possibly a powder mill. They are much smaller than mechanical conveyors consisting of an integrated hopper, agitator, small tube or flat bed and a variable frequency drive. The integrated hopper is necessary for feeding equipment because a constant head load must be maintained for proper operation. The speed can be controlled on feeding equipment via a VFD, to allow slower and faster feed rates.
If your process requires repacking the processed material into 25 &#; 50 lbs. paper bags, and you need to be certain you&#;re not over or under packing the container, feeding equipment is the way to go. Similarly, powder mills cannot run on a head load or be slug fed, they perform at their best while running under a steady and consistent feed rate.
The company is the world’s best Vibration Feeder supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.
So now that we understand how feeders are used and various material characteristic categories, let&#;s put both of those components together and define what feed equipment will work best. Screw Feeders use a built-in hopper with stirring agitator that flood feeds a tubular channel. Within the tube is a small screw that pushes the product through an outlet into the downstream process. There are several designs for the small auger within screw feeders such as: pigtail screws, ribbon screws, and screws with a drive shaft.
Screw feeders offer a good deal of precision, in some instances dosing at an accuracy of -/+ 1-2 grams. They are a common type of feeder as they fit most applications, except in instances of materials that are friable or heat sensitive.
Vibrating feeders have a similar build (hopper and tubular structure unit) but instead of a screw, shaker motors are attached to the unit and the structure is supported by spring coils, to allow the unit to vibrate. A very minimal angle will allow the unit to shuffle the material down the feed bed into the downstream process. The feed rate can be controlled by increasing or decreasing the vibration amplitude and frequency. The shuffling action helps preserve the integrity of the materials, or avoid unnecessary wear and tear in the case of abrasive materials. Therefore, whenever dealing with materials that are either friable, temperature sensitive or abrasive, vibrating feeders are the way to go.
For more Gold Ore Processing Plantinformation, please contact us. We will provide professional answers.