Powder & Solids

on 'Powder & Solids'

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  • Dry Media Dust Collector or Wet Scrubber?

    Wet scrubbers and dry media dust collectors are two very different technologies used to capture dusts generated during production processes. Both types have inherent advantages and disadvantages. Which is best for your application? The choice is not always clear-cut, but this white paper will help with the decision process by providing a comparison between wet and dry dust collectors. It will outline general parameters for equipment selection with respect to dust properties including combustibility, explosibility, particle size, moisture and adhesiveness. It will also discuss how to apply NFPA 484: Standard for Combustible Metals, the standard that best addresses wet collection. Though NFPA 484 is specific to metals, some of its content can and should apply to nonmetal combustible dusts.

    Download the white paper now.

    Camfil
    04/28/2016
  • Drying Compressed Air in Hazardous Atmospheres

    Hazardous locations have or could potentially have high concentrations of flammable gases, vapors, combustible dusts, etc. A small spark can lead to a horrific explosion dangerous to equipment and workers in the area. Equipment located in hazardous areas must be specifically designed to prevent ignition and explosion.

    Parker Hannifin
    02/24/2012
  • eHandbook: Handle Powders With Care

    Are you looking for more information about handling powders?

    Do you want to prevent problems before they start and consider alternative methods?

    This Chemical Processing eHandbook takes a look at how chemicals manufacturers are meeting the challenges of handling powders. Download this Chemical Processing eHandbook for insights and strategies including:

    • Prevent Problems with Fine Particles: Sampling is crucial and demands particular care.
    • Don’t Err About Fluidization: Consider its under-appreciated advantages and broader utility.
    • Get the Most Out of Your Sterilization Process: Take a close look at two commonly used methods and their associated vacuum technology.
    • More!

    Download your copy of this Chemical Processing Powder eHandbook now.

    05/18/2016
  • eHandbook: Make the Right Moves with Powders

    When designing a system to transport powders and granules there is a wide variety of considerations. Different applications, installation environments, equipment, material characteristics and how they may change during the process are all part of the equation. While many plants aim to keep costs low and often times use old equipment for a new project this can also further compound a complex challenge. And that's not even taking in to consideration our increased awareness of the risks of an explosion and the need to avoid hazardous emissions. In this Chemical Processing Powder eHandbook, we take a look at key considerations affecting today’s best practices for transporting and processing powders and granules including:

    • Installing pneumatic conveyors correctly - 10 steps to prevent a variety of common problems
    • How to understand accuracy in a bin level monitoring system
    • Tubular drag conveying - an alternative to pneumatic conveying
    • Vacuum Conveying equipment and the issues of safety, security and sanitation

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

    08/13/2014
  • eHandbook: Master These Mixing Best Practices

    This Chemical Processing eHandbook takes a look at some of today’s mixing challenges for chemical manufacturers and some of the best practices that can be implemented to help along the way.

    Download this Chemical Processing eHandbook for insights and strategies including:

    • Prevent Problems with Fine Particles: Sampling is crucial and demands particular care.
    • Quickly Estimate Reagent Addition Time: A simple equation suffices in many situations involving batch reactors.
    • Understand Powder Flow Characteristics: A powder’s variables and external factors will greatly impact blender size and type.

    More!
    Download your copy of this Chemical Processing Mixing eHandbook now.

    08/24/2016
  • Powder eHandbook: Tame Your Pesky Powders

    A material’s characteristics – adhesiveness, cohesiveness, aeratibility, pressure-sensitivity – often change during processing and can cause both flow and hidden hazard challenges. And while poor flow is one of the most common problems encountered in handling or storing solids, dust control issues also need to be identified and addressed. This includes combustible dust as the repercussions can result in costly downtown and in some instances, explosions, serious injury and possibly even death. In this Chemical Processing Powder eHandbook, we take a look at strategies and solutions for taming pesky powder processing challenges including:

    • Defuse Dust Dangers - Carefully consider and then counter risks of fire and explosion
    • Clamp Down On Clumping - First understand what’s really causing the problem
    • What You Don’t Know About Powder Flow - Shear cells can quickly reveal information about flow behavior
    • Know Your Vacuum Pumps - Understand the differences between liquid ring and rotary screw dry pumps for distillation

    Learn how to tame your pesky powder challenges. Download your copy of this Chemical Processing Powder eHandbook now.

    05/27/2015
  • Eliminating arching hangups in hoppers

    This short two-page PDF whitepaper first discusses how an arch develops within a hopper and then disusses strategies for effectively removing them.

    Diamondback Technology
    01/31/2005
  • Fired Up: Combustible Dust Raises Explosive Issues

    Combustible dust fires happen in plants everyday. This white paper helps manufacturers learn more about combustible dust hazards and ways to handle combustible dust in your manufacturing plant in order to comply with OSHA's NEP. Learn more about choosing the right cleaning tools for your facility.

    Nilfisk Industrial Vacuums
    07/25/2012
  • Gas And Dust Explosions -- Relief Sizing Formula

    A large number of analytical and highly empirical correlations including monograms reflecting changing standards have been or are being proposed separately for gas and dust explosion relief venting. This white paper provides a generalized formula that is applicable to both gas and dust deflagrations including subsonic and sonic pressure relief conditions and is consistent with available experimental data and industry experience. Application of the model is illustrated for dust explosions. Download now.

    Fauske & Associates
    05/06/2011
  • How Well Do You Know Your Dust?

    The collection and testing of dust samples is a long-established practice used by many powder and bulk processors to make informed dust collection decisions. Dust testing protocols have not changed markedly in recent years. The importance of dust testing, however, has changed, and the implications are significant. While knowing your dust has always been good practice, it is rapidly becoming a necessity in today's regulatory climate.

    This article will review two separate types of testing: (1) explosibility testing, which is used to determine whether a dust is combustible; and (2) bench testing, which pinpoints numerous physical properties of the dust. Both categories of tests are needed to determine the best dust collection system for your application and whether explosion venting equipment must be part of that system.

    Camfil Farr
    03/16/2010
  • Hygienic Feeder Design

    Specifying a hygienic bulk solids feeder is not a simple task. The wide variety of requirements needed for specific applications are similar in scope to explosion proof environmental requirement variations.

    Schenck
    06/06/2005
  • Integrating Process Weighing Data

    Efficient transfer of weighing process data to higher level PLC, MES or ERP systems makes manufacturing processes more efficient and more transparent. But identifying and implementing the most effective system for data transfer and integration can be challenging.

    Mettler Toledo LLC
    02/12/2013
  • Research Paper: Investigating the Relationship between Gypsum Purity and Hydrogen Sulfide Production under Anaerobic Conditions

    Calcium Sulfate (CaSO4) more commonly known as gypsum is a naturally occurring white crystalline mineral that has many different uses and applications. Gypsum in its hydrated form (CaSO4•2H2O) is used in the construction industry for fire resistance in buildings. Outside of the construction industry, gypsum is used in the food and fertilizer industry for calcium and sulfate fortification respectively. When gypsum is no longer usable, it is deposited in construction and demolition(C&D) landfills where anaerobic (low oxygen) conditions and the presence of sulfate-reducing bacteria promote the decomposition of wallboard/gypsum into hydrogen sulfide gas (H2S). Due to local and state regulations on odor control, these C&D sites monitor their fill for hydrogen sulfide gas.  This paper will couple two methods of analysis to observe the relationship between the purity of gypsum (calcium sulfate dihydrate) and hydrogen sulfide concentration as a sample is fermented by sulfate-reducing agents (e.g. bacteria). The scope of this research may be beneficial for industrial hygienists concerned with C&D landfill H2S levels or for incoming gypsum processing plants who suspect poor quality gypsum.

    09/12/2014
  • Level measurement of bulk solids and powders

    This 26-page white paper from Monitor Technologies discusses the difficulties in measuring bulk solids and powders in bins, silos and hoppers.  Download this document to learn which technologies are out there that can make this job easier.

    Monitor Technologies
    01/03/2005
  • Metal Dust Explosion Protection

    Combustible dust explosions are a known hazard in chemical processing,and metal dusts pose a unique danger. Learn why this concern is growing in urgency and the steps industry regulators and technology leaders are taking to improve risk mitigation. Download the whitepaper now.

    Fike
    06/28/2016
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