Powder & Solids

on 'Powder & Solids'

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  • Powder eHandbook: Efficient Powder Process Handling

    The mechanisms of powder flow are complex. They are influenced by an array of different parameters; some relate to the particles’ physical attributes, such as size and shape, and others, such as humidity, to the system itself. Although there is a general understanding of these individual mechanisms, the multitude of interactions that govern the specific behavior of a given powder can many and in turn, affect how these powders are processed. In this Chemical Processing Powder eHandbook, we take a look at technologies and strategies for handling powders including:
    • How to Optimize Humidity for Efficient Powder Handling - too much or too little moisture can cause problems during processing and storage
    • How to Select the Right Conveying and Feeding System - successful bulk handling of calcium carbonate depends on a variety of factors
    • Suppressing Explosions for Process Protection - A properly designed and engineered suppression system offers many advantages
    Learn how to process powders efficiently. Download your copy of this Chemical Processing Powder eHandbook now.

    11/12/2013
  • Powder eHandbook: Preclude Powder Problems

    Process design and process safety are critical considerations in chemical production and processing. With design and safety paramount at the outset of any new development or equipment retrofit, firms can minimize risk exposure, maximize productivity and position themselves to remain compliant and competitive. Whether retrofit or new, chemical processing is continually challenged by combustible dust. Combustible dust can pose a hidden hazard when accumulation occurs in unseen locations such as in mechanical spaces, above false ceiling, ventilation systems and dust collection systems. In this Chemical Processing Powder eHandbook, we take a look at strategies and solutions for mitigating combustible dust hazards including:

    • Identifying hidden hazards - a case study outlining how a facility finds danger from accumulated dust and effectively addresses it
    • Powder flowability - how new measurement methods now make it easier to evaluate flow
    • Process safety -  properly designed weigh model can optimize safety and improve efficiency
    • A multivariate approach to powder processing -  an overview of several methods that can help determine which powder properties have the greatest influence on performance

    Learn how to preclude powder problems. Download your copy of this Chemical Processing Powder eHandbook now.

    11/11/2014
  • Powder Processing Best Practices

    A material’s characteristics and how they may change during processing can affect HOW these materials are processed. Key factors affecting powders include aeration, moisture absorption, electrostatic charging to name a few. Many bulk solids are sensitive to heat and humidity. As these levels rise, either in the feeder system or via outside conditions, flow problems crop up. As the powder gains strength, jams and poor flow conditions begin to appear. Costly downtime and a loss of product are incurred while a search is made for a solution to the flow problems. In this Chemical Processing Powder eHandbook, we take a look at key factors affecting powders and today’s best practices for overcoming the processing of powders including:
     

    • Looking beyond the physical properties of particles and treating powder as a bulk entity
    • How scanners take volume to a new level - acoustics-based sensors can help accurately measure the volume of powders in vessels
    • How to determine a coating’s volatile content  - advancements in rapid loss-on-drying techniques significantly reduce testing time
    • Testing powder flow - advances in test methods help better predict flow behavior at elevated temperature and humidity levels

    Learn how to process powders efficiently. Download your copy of this Chemical Processing Powder eHandbook now.

    02/19/2014
  • Preventing Segregation During Powder Drying

    This 4-page case history by Jeroen van den Berg of Bolz-Summix discusses how changing process conditions within a conical screw dryer eliminated granulation and minimized product segregation.

    Bolz-Summix
    05/02/2006
  • Process Moisture Analysis using FT-NIR

    Manufacturing a pure product can be critically important to the next steps in the manufacture of a powder-based product. As a result the removal of residual moisture and solvents from the crystallization, filtration and drying steps can be crucial to producing a stable product.

    Bruker Optics
    06/28/2006
  • Rectifier design for fuel ethanol plants reduces energy

    Plants have traditionally used trays in the distillation columns to produce fuels grade ethanol. Trays of various configurations have been adequate in this service and their technology is well founded. The ever-present desire to reduce the energy needed to produce a gallon of ethanol has opened the doors to structured packings being used in the rectification sections of ethanol distillation columns.

    Sulzer Chemtech USA
    04/10/2007
  • Systems Reliability in Material Handling

    This 23-page white paper is from the Material Handling Institute's Classic Series and discusses the reliability of automated material handling systems.

    Material Handling Institute
    05/31/2005
  • Tips For Cleaning And Sanitizing Pneumatic Conveying Lines

    Pneumatic conveying is an effective form of moving dry materials. However, the long lengths of conveying pipe present a challenge when it comes to addressing cleanliness and sanitation.

    While the closed nature of pneumatic conveying systems protects material from outside contamination, like debris, insects, etc., it is difficult to identify and protect against internal forms of contamination, such as buildup, microbial growth, etc. A plant HACCP or sanitation plan that does not address thousands of feet of pipe and dozens of elbows is incomplete and at risk for a recall.

     

    Download this white paper now.

    Schenck
    03/24/2015
  • Tips for Improving the Performance of Your Gravimetric Feeder

    Download the white paper to receive information on maximizing the performance of your gravimetric feeder. You will receive tips on how to choose and set up the right feeder for the specific material being fed in your process. Handling free flowing, adhesive, cohesive, aeratable, hygroscopic and pressure sensitive materials plus ways on where and how to properly install a gravimetric feeder are discussed.

    Schenck
    03/18/2014
  • Understanding and preventing fine powder flushing

    This nine-page whitepaper discusses the sources of powder flooding, the dangers it can pose to your equipment and the steps you can take to prevent it from happening.

    Diamondback Technology
    03/01/2005
  • Understanding Dust Explosion Dangers

    The unfortunate propensity of dust explosions to destroy entire facilities and claim lives is very real. Powder handling processes often are comprised of interconnected enclosures and equipment. Flame and pressure resulting from a dust explosion can therefore propagate through piping, across galleries, and reach other pieces of equipment or enclosures, leading to extensive damage. In this Chemical Processing Special Report, we take a look at the latest NFPA standards and dust explosion mitigation strategies. This Special Report covers:
     

    • Significant revisions to dust explosion standards – NFPA 654 major changes include new administrative requirements
    • How to defuse dust dangers - carefully consider and then counter risks of fire and explosion
    • Five common dust explosion misconceptions that can lead to a false sense of security

    Prepare your facility against potential dust explosion dangers. Download your copy of this Chemical Processing Special Report now.

    12/17/2013
  • Use CFD to Improve Crystallization | Chemical Processing

    In this article, Kumar Dhanasekharan, Ph.D., technical specialist with the computational fluid dynamics (CFD) specialist Fluent, Inc., shows how modelling crystallizers using CFD can help improve process understanding, control crystal size distribution (CSD) and improve pharmaceutical crystallization results.

    Fluent
    03/06/2006
  • What Does It Cost To Own Your Dust Collector Filters?

    When choosing filters for your cartridge dust collector, a Total Cost of Ownership (TCO) calculation allows you to make the most economical and sustainable choice. TCO is a step-by-step evaluation that explores energy use, maintenance and other factors to compare the real costs of operating a dust collector with different filters. This white paper explains how to perform TCO calculations to save money, time and energy.

    Camfil Farr APC
    03/04/2011
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