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Solids Handling

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A ‘Sound’ Solution to Material Flow Problems

Particulate buildup and other material flow problems are common hurdles wherever dry materials find application in the chemical process industries (CPI). Since manual intervention is costly in terms of downtime, and can be quite hazardous for the personnel involved, dedicated…

A vacuum conveyor that is GMP-compliant

  Piab Vacuum Conveyors The UC Series of vacuum conveyors (photo) comply with Good Manufacturing Practice (GMP) standards, and are suitable for pharmaceutical processing applications, including loading and unloading coating pans, manufacturing tablet cores and handling or transferring pharmaceutical powders.…

Handle high-volume applications with this screener

The Megatex XD Screener provides high-capacity throughput for large-volume applications in agriculture, plastics and chemicals. The screener has a unique elliptical-linear motion designed for high screening performance with low energy consumption. A single-screen deck change can be completed in 10…

Screeners target efficiency

As bulk-solids processors look for ways to save money, manufacturers of screening equipment are concentrating on maximizing the efficiency of the equipment they offer. Screening has been prominent in solid-solid separations in the chemical process industries (CPI) for decades. It is…

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Measuring Dust and Fines In Polymer Pellets

The ability to carry out  measurements of dust and fines in polymer pellets can help operators improve equality control, assess equipment performance and optimize the process Plastics are most commonly produced and sold in pellet form due to the superior…

Fine Grinding With Impact Mills

Many branches of the chemical process industries (CPI) make use of impact comminution to process solid matter, such as minerals, foodstuffs, pharmaceutical products, and above all, products for the chemicals industry. Impact comminution is also used for coarse crushing, but…

Focus on Weighing and Proportioning

Distribute and weigh solid library compounds automatically Compound libraries are critical to pharmaceutical companies. Liquid handling for the dissolution of library compounds has been automated for many years, but the distribution and weighing of the original solid dry-stored library compound…

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Vibratory Feeders And Conveyors: Useful Selection Tips

Figure 1.  Vibratory feeders are particularly well-suited for fragile or friable materials, and hard-to-convey powders Figure 2. Today’s advanced electromagnetic drives address many shortcomings of earlier designs The need to move, convey and feed materials exists in virtually all segments…

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Designing and Operating Gravity Dryers

Evaporation of moisture or volatile organic compounds (VOCs) from bulk solids usually takes place in two stages: one in which the drying rate is constant, and the second in which the rate decreases over time. Devolatilization during the first stage…

Understanding Bends In Pneumatic Conveying Systems

Despite their apparent simplicity, bends are often poorly understood, and unless properly designed, they are potentially problematic Pneumatic conveying of bulk solids has been successfully practiced — in industries as diverse as chemical, agricultural, pharmaceutical, plastics, food, mineral processing, cement…