Extraction Of Powdered And Granular Materials Using Screw Feeders
The extraction of powdered and granular materials from vessels is undertaken using a variety of techniques such as belts, vibratory tray, rotary valves and screws. All of these methods have their place if applied appropriately (in terms of suitability for the material being handled and the process requirements).
A common issue that can result if poorly flowing, time dependant or segregable materials are being handled is that of variable consistency / quality of product delivered into the process. The Wolfson Centre can provide independent advice on identifying the causes and remedial actions necessary to obtain the desired process performance.
In many cases a combination of lack of draw-down capacity within the screw feeder and lack of interface design details generate regions of non-flowing material within vessels – which can encourage cross-contamination between batches or poor discharge rate control. Accurate and reliable feeding of powders requires a holistic design approach for the metering equipment, interface and vessel geometry – all of which should be decided upon using knowledge of the bulk materials properties.
The Wolfson Centre for Bulk Solids Handling Technology
- 02083318646
- wolfson-enquiries@gre.ac.uk
- http://www.bulksolids.com
- University of Greenwich, Central Avenue, Chatham Maritime, Kent, ME4 4TB GB
About us
Our Mission: To help industry to get it's powders and bulk materials to behave in the way they need them to!
Our Services:
- Consultancy
- Research
- Short Courses
Our Clients:
Industries involved in the processing of powders, particulates and other bulk solids materials from across the spectrum including (but not limited to) food and drink, pharmaceuticals, minerals, renewable energy, chemicals, plastics, recycling, metals, household goods, paper, cosmetics, textiles and rubber.
Ranging from small local companies to international conglomerates.
Our industrial-scale pilot plant is available to test a processing step, or mock up a whole handling process or logistics chain, at full scale or near full scale. This can be used to find and solve the problems off-line, then when you transfer the same process or material to your own or your customers' plant, you can be confident it will work!
Our Experts have over one hundred man-years of experience in solving bulk materials handling problems. Along with a team of Researchers they concentrate on nothing else but the needs of Industry – and are at your disposal.
Our location offers excellent transport links within the UK and EU enabling us to provide a prompt and flexible response to site visit requests and client meetings.
Contact us for advice – don't pick up a hammer – pick up the phone. +44 (0) 20 8331 8646
Where we supply to
Europe, Africa, Asia, Australia, South America, North America
Industries we supply to
Automation, Chemicals, Consultants, Components Electronics, Energy and Power, Food and Beverage, Glass Ceramics Cement, Metals and Minerals, OEM, Paper and Pulp, Pharmaceutical Cosmetics Toiletries, Plastics and Rubber, Recycling, Textiles, Tobacco, Water and Wastewater
