The unexpected cost of a poorly designed solids handling system can be staggering. Often, poorly selected solids handling equipment such as silos, bins, tanks, feeders and valves end up in a scrap pile after failed attempts in a production line. Alternately, extra personnel may be used in an attempt to keep the flawed systems running and solids moving. The costs continue to rise when product is wasted, when business is lost to competitors because quality and quantity suffer, and when risk of worker injury or exposure increases.

Since the 1960s, Jenike & Johanson has been showing clients in the chemical processing industry how to stay ahead with productivity. Jenike & Johanson's solutions are based on the flow properties of the bulk solid and solids flow theory, not rules of thumb or best guesses. From ammonium sulfate to zinc oxide, solids handling systems designed by us work reliably and efficiently.

Whether you need a new system design, or a solution to an existing problem, contact us at Jenike & Johanson to discuss how your handling system can work to improve your bottom line.

• Fertilizer buildup in silos and feeders
• Trimellitic anhydrite flake attrition in pneumatic conveying lines
• Blending of chlorine granules and fines
• Propellant segregation [220K QuickTime video]
• Uniform feed of sodium hexameta phosphate
• Erratic flow of terephthalic acid from silos
• Feeding photoactive compounds to a reactor
• Titanium dioxide buildup in packaging operations
• Ammonium sulfate buildup in centrifuge hoppers and chutes

Client confidentiality prevents us from discussing most of our projects. The following case studies were written with the consent of our clients.

Some of the chemical handling equipment we have designed and/or supplied:

• Bulk bag filling system for herbicide
• Static blenders for alumina (single-pass and recirculating)
• Static blender for granular chlorine
• Drum dump and bin for sodium tripolyphosphate
• BINSERT® bin for adipic acid
• Slide gate and Solids Pump™ (sealing screw) for urea cyanurate
• Mass flow twin screw feeder for cellulose acetate
• Mass flow screw feeders for cellulose acetate flake
• Polyethylene lined hopper, belt feeder, mass flow feeder interface, and dribble box for neopentyl glycol hydroxypivalate cubes
• Surge bin, mass flow screw feeder, and slide gate for insecticide
• Silo with insert for alumina
• Alumina silo with fluidizer
• Surge bin for sodium tripolyphosphate
• Mass flow transition hopper, screw feeder, and slide gate for terephthalic acid

Some of the chemicals we have handled:

A partial listing of the chemical companies with which we have worked: