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Here you can find articles with background information on powder and bulk solids handling and processing.
CenTrax for RWE Eemshaven power plant Downtime of the conveyor belts caused delays in supply and additional costs. Within a month CenTrax tracker rollers proved to be the solution.
CenTrax for RWE Eemshaven power plant
Downtime of the conveyor belts caused delays in supply and additional costs. Within a month CenTrax tracker rollers proved to be the solution. The constant downtime of the conveyor belts caused delays in supply and additional costs. RWE consulted TBK Group, after which it was decided to install our CenTrax tracker rollers for a trial period. Within a month, it was already clear that CenTrax was the solution to their misalignment problem. Large coal and biomass power plant RWE Generation’s Eemshaven power plant is the largest coal and biomass power plant in the Netherlands. Covered conveyor belts ensure dust-free transport of the coal from ships to the power plant or the storage yard. This process was always accompanied by jerks and jolts due to frequent belt misalignment. The constant downtime of the conveyor belts caused delays in supply and additional costs. RWE consulted TBK Group, after which it was decided to install our CenTrax tracker rollers for a trial period. Within a month, it was already clear that CenTrax was the solution to their misalignment problem. [IMG02**L45**][IMG03**R45**] Misalignment
18.12.2020  |  038x  |   | 
The importance of the Tensile Strength of powders Tensile Strength is the prime component of cohesion, which has many adverse consequences, especially in small scale, as in pharmaceutical applications
The importance of the Tensile Strength of powders
Tensile Strength is the prime component of cohesion, which has many adverse consequences, especially in small scale, as in pharmaceutical applications Great emphasis is directed to securement of measured values of the flow properties of bulk materials because of the need to design storage, process and handling equipment that provides reliable performance. Until the 1960’s the design of bulk storage equipment depended largely on empirical experience because of the lack of a scientific understanding of the behaviour in bulk of particulate materials. From a background in soil mechanics, [1], hopper design parameters were established in the 1960’s based on the measurement of bulk density, wall friction and shear strength values. [2]. This initiated industrial, academic and Government interest in the benefits that industry may gain from a scientific approach to the subject of bulk technology with seminars, conferences, exhibitions, magazines and specialised courses springing up all over the world. Shear plane length limitations of the Jenike call were overcome by annular cells, [3], [4], [5]. Interest in the dynamic
17.12.2020  |  027x  | 
Pressure reduction in silos: intermediate cones a reliable solution Higher silos may show problems such as quaking or honking, or too high stresses on the product stored.  Intermediate cones are a reliable and well designable solution.
Pressure reduction in silos: intermediate cones a reliable solution
Higher silos may show problems such as quaking or honking, or too high stresses on the product stored. Intermediate cones are a reliable and well designable solution. If, for whatever reason, a company invests in larger silos, one must be aware of problems. The bulk material experiences greater pressure in a larger silo. This means that the properties of the bulk material change in a negative way. It is therefore very important to keep that pressure under control. An important instrument is the wall of the silo. One can apply rings or coat the wall. This article deals with the application of intermediate cones. With a well-designed intermediate cone one can reduce the pressure, the product flows again, and shocks will be a thing of the past. [IMG01**R40**] Bigger silos, bigger problems Increasing capacities or shorter lead times sometimes require larger stocks of raw materials. For companies that store their raw materials in silos, this means an investment in higher or wider silos. This may lead to problems not experienced before, because the bulk solid experiences greater pressure in a larger silo. This changes the properties
11.12.2020  |  031x  | 
Silo design: avoiding flow problems through adequate design Avoid silo problems, such as bridging, funnel flow, ratholing, arching, segregation and product decay. Silo design for gravity flow; most economic.
Silo design: avoiding flow problems through adequate design
Avoid silo problems, such as bridging, funnel flow, ratholing, arching, segregation and product decay. Silo design for gravity flow; most economic. To avoid problems in silos concerning flow, product ageing or decay, silo design is necessary. The design of a silo is based on the most economical case: gravity flow. Wall friction, internal friction and bridging properties determine the applicable hopper angle and opening diameter. In some cases through the design procedure it is found that a "simple" silo is not possible. This however saves a lot of work and costs. [IMG02**L45**][IMG01**R45**] INTRODUCTION To prevent flow problems in a silo, proper silo design is necessary. The most obvious (and the most economical) way of storing bulk solids is in a silo with gravity flow. In this case the silo consists of a cylindrical or rectangular part with a hopper. The hopper lets the product converge to the opening. This simple fact is the direct cause of most problems, such as: unsteady flow, segregation, remaining product, ageing or decay of the product, shaking or quaking of the silo, flooding, or: flow does
27.11.2020  |  501x  | 
Screw feeder design for hassle-free feeding Proper feeding through well designed pitch profile and core diameter variation
Screw feeder design for hassle-free feeding
Proper feeding through well designed pitch profile and core diameter variation In solids handling processes screws are often used to feed powders from silos. This has a number of advantages: contamination of powder is avoided, as well as pollution of the surroundings. A proper feed rate can be achieved in a large range of feed capacity. When using a screw feeder, the hopper of the silo can be wedge shaped. This offers an additional advantage with regard tp flow. However, if a screw feeder is not designed properly, core flow and bridging can occur. Also the risk of flooding (uncontrollable flow) or excessive wear is present. A proper design, where pitch and core diameter are adjusted to the properties of the product, prevents these problems. [IMG01**M70**height: 180px; object-fit: cover;] Introduction In a production process solids will be handled at one point or another. Raw materials are often in the form of solids, and also at processes with mainly liquids or gasses, there usually are steps where powders are used. The feeding of these components
27.11.2020  |  231x  | 
Process Technologies to Optimize Detergent Manufacturing Cleaning agents and detergents can be produced environmentally friendly and effective, using fluid bed and spouted bed technologies. Experts from Glatt Ingenieurtechnik explain.
Process Technologies to Optimize Detergent Manufacturing
Cleaning agents and detergents can be produced environmentally friendly and effective, using fluid bed and spouted bed technologies. Experts from Glatt Ingenieurtechnik explain. As a manufacturer of consumer goods, the detergent industry must respond to megatrends like no other. One of these drivers is sustainability; eco-friendly biosurfactants have been available since 2009 and, now, alternative complexing agents such as α-ADA or MGDA-Na3 can be produced from renewable raw materials and used to replace phosphates. According to the German Zukunftsinstitut (Future Institute), the neo-ecology megatrend is causing a reorientation of the values of global society, culture and politics and will have a defining impact on the 2020s [1]. Consumers and business partners alike are asking about transparent value creation and whether social aspects are being considered. As an example, seamless traceability has long been standard practice. Yet, the ongoing microplastics debate calls for a rethink when it comes to encapsulated fragrances or when the fibres of functional clothing have to be fished out of wastewater. Solutions for all these requirements can
02.10.2020  |  1783x  | 
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