Articles

on 'Powder & Solids'

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  • Don'’t Get Mixed Up By Scale-Up

    Use this systematic approach to successfully scale-up mixing processes even without geometric similarity.

    David S. Dickey, MixTech, Inc.
    08/04/2005
  • Powder Handling: How to Reduce Caking Problems

    This web-exclusive article from Diamondback Technology identifies the most common caking mechanisms and how to solve the problem through reduction.

    Diamondback Technology
    07/05/2005
  • Avoid confusion with air injection for fine powders

    Fine powders often need air injection to increase flow rates to an acceptable level. With entrained or injected air, powders flow like water, but when deaerated, the extremely low flow rate may be confused with a hang-up or arching condition.

    06/01/2005
  • Process engineering: Doing your level best

    Plant engineers who find it is difficult to get good level measurements have plenty of company. A recent poll shows that it is considered to be one of the two most vexing problems by process automation professionals.

    04/08/2005
  • Process engineering: Pneumatic conveying moves ahead

    Pneumatic conveying has long been a popular choice for moving bulk materials. However, the technology hasn't been standing still, and this can influence the choice between several types of pneumatic systems.

    Nick Basta
    04/04/2005
  • Understanding ratholes

    Diamondback Technology supplies ChemicalProcessing.com with this exclusive piece on rathole formation in plant hoppers.

    Diamondback Technology
    04/01/2005
  • High-viscosity materials: Get into the thick of things

    Mixing equipment that you have relied on for years is likely inadequate for successfully mixing high-viscosity materials. This article outlines the solutions to this unique challenge.

    Bill Alhofen, Charles Ross & Son Co.
    03/01/2005
  • Properly introduce solids into a flowing gas stream

    Particulate solids are often required to be introduced into a flowing gas stream. If not done correctly, introduction of solids into the gas stream can lead to impingement of solids on the pipe, resulting in erosion of the pipe in the area of the solids introduction.

    01/31/2005
  • Test for success

    The best hopper is the least expensive one that consistently provides the required solids flow. A few simple indices can pinpoint potential solids flow problems and help optimize design.

    10/08/2004
  • Take out torque

    A reader's ribbon blendor is experiencing torquing problems. Read tips about how to avoid torque problems in a ribbon blender.

    10/02/2004
  • The future is in plastics

    Single-use equipment is finding a place in the biopharmaceutical industry. One company has even designed a new bioprocessing facility around the disposable equipment.

    Diane Dierking
    09/16/2004
  • Take guesswork out of the mix

    Which mixer would be the most efficient, cost-effective, reliable or versatile? Know your options when choosing an in-line or in-tank mixer to suit your application.

    Chris Ryan
    08/05/2004
  • Manual unloading bites the dust

    Automated bulk-bag dischargers not only cut batching time in half. They also minimize dust and reduce potential harm to those workers who operate the machines.

    David R. Gill
    08/05/2004
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