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Latest update: 23-03-2020
BSE, bulk solids engineering
TEL: +31 53 434 45 66
FAX: +31 84 756 26 88
Kogelerbos 10
NL-7543 GT   Enschede
Contact
+31 53 434 45 66
Mr. Piet van der Kooi
project manager
BSE makes silo designs for bulk solids on the basis of the characteristics of the product. Our work consists of:
* Measurement of bulk solid properties for various applications.
* Design of silos and transport equipment based on product characteristics.
* Advice concerning bulk solids and flow problems,

Measurement of product properties

BSE has an own laboratory, where relevant properties of the bulk solid, such as internal friction, wall friction, permeability, etc. can be measured. The Jenike shear cell is the most important tester in this respect.

Design of bulk installations
Based on measured properties bulk installations can be designed with greater dependability.
The design of bulk installations is based on product characteristics and applicable standards.

Trouble-shooting, consulting
Advice is related to flow problems, arching or bridging in the silo, product degradation, irregular flow, silo quaking or shaking, etc.
Subjects
Products, services
 Bulk solids handling, Feasibility studies,  Equipment choice,  Advice, consultancy, Expert witnesses, Advice contamination,  Silo problems,  Silo design, flow pattern,  Flow measurements,  Jenike shearcell,
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Products, services
 Bulk solids handling - Field of work: bulk technology, powder technology, granulates, powder, bulk material, bulk solids.
Feasibility studies - Processes with bulk solids are less efficient than those with liquids or gasses. Taking into account the product properties will avoid this problem.
 Equipment choice - BSE helps you decide the proper equipment for your product and process, based on knowledge, experience and documentation.
 Advice, consultancy - Through knowledge and experience BSE is able to help you solve bulk handling problems.
Expert witnesses - experts in silo problems, contamination, segregation.
Advice contamination - Advice and assessment of situations to prevent or counteract product contamination
 Silo problems - Silo quaking, silo shaking, segregation, attrition.
 Silo design, flow pattern - Flow pattern, mass flow, core flow, funnel flow, arching, bridging, shaft building, ratholing.
 Flow measurements - Measurements, wall friction, wear of wall, internal friction, shear stresses, characterisation, design silo geometry, calculation silo pressures.
 Jenike shearcell - flow properties, flow behaviour, arching, bridging, bulk density, time consolidation, influence of temperature.
Resources
Storage - Silo discharge - Screw feeders for silo discharge
Handling - Components, accessories - Lining, liners - Linings for reduction of wall friction
Storage - Silo services - Silo design & measurements
Storage - Silo services - Measurement wall friction
Storage - Silo services - Measurement bridging properties
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Resources
Storage - Silo discharge - Screw feeders for silo discharge
Handling - Components, accessories - Lining, liners - Linings for reduction of wall friction
Storage - Silo services - Silo design & measurements
Storage - Silo services - Measurement wall friction
Storage - Silo services - Measurement bridging properties
Services - Design, realisation - Software
Services - Various services - Expert witnesses
Services - Measurement, analyses - Flow property measurements
Services - Measurement, analyses - Quality control
Services - Measurement, analyses - Fluidisability measurements

Wiki items

Design of a screw feeder Correct designed pitch for optimum performance
Design of a screw feeder
Correct designed pitch for optimum performance Design of a screw feeder At the design of a screw feeder the goal is to let the capacity increase evenly over the length of the screw. The design procedure is as follows: ∑ the wall friction of the product on trough and screw blade and the internal friction of the product are measured. ∑ the capacity profile around the maximum pitch is calculated. On the basis of this value the maximum applicable pitch is fixed. ∑ the desired capacity and this pitch now determine: number of revolutions, screw diameter and core diameter at the discharge. ∑ The increase of the capacity per length of screw is fixed now. The filling in of core diameter and pitch can start. ∑ The core diameter at the start of the screw is chosen. For short screws this may be the same as the diameter at the discharge, but mostly a bigger core has to be chosen. The minimum pitch is calculated. ∑ The starting value of factor Z is chosen, in combination with the ístickinessí of the product. The
23-08-2014  |  14301x  | 
Screw feeder design Proper feeding through well designed pitch increase
Screw feeder design
Proper feeding through well designed pitch increase A screw feeder is a screw that is mounted directly under the opening of a hopper. The product in the silo therefore rests on a part of the screw, and the screw flights are filled completely. This is a clear difference with a transport screw or screw conveyor, where the product is fed with a capacity that is smaller than the capacity of the screw. A screw feeder is used a lot for the feeding of powders from a (wedge shaped) hopper. The reasons for this are: * an even withdrawal of the powder is well possible, resulting in mass flow. * the screw is closed, so there is no risk of pollution of the powder or surroundings. * proper feeding is possible, in a broad range of capacity. * the life of the screw; a wear resistant type is possible. * the screw can be made well resistant against for example high temperature, aggressive environment, etc. Working Principle In a screw transport depends on the friction between product and 1) screw blade, 2) trough
22-08-2014  |  9820x  | 
PROCES MEDIA
Solids Processing Fluids Processing MB Maintenance SchuettgutPortal
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