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Wave Dry pulse dryer

Does your company make CERAMIC POWDER?

Wave Dry pulse drying has NO abrasion & NO corrosion of nozzles. How?? NO NOZZLE!

And there is NO HIGH PRESSURE PUMP with Wave Dry's pulse drying technology. Even with a gravity feed, your slurry will work fine.

What we DO offer is ...

  • LOTS of particle shape & size control to meet customer specs
  • more energy efficiency than spray drying
  • one step dry and calcine

Should you throw out your old spray dryer? NOT YET! There's a good chance we can RETROFIT!



Does your company make HERBICIDES or FERTILIZERS?

Wave Dry pulse drying has NO shearing of liquids from spinning disks or high pressure nozzles. Why?? NO DISKS OR NOZZLES!

And where spray drying "heat denatures" product with long drying times (up to 90 seconds), our pulse drying technology "flash atomizes" your product with heat for less than a second.

Should you throw out your old spray dryer? NOT YET! There's a good chance we can RETROFIT!



Does your company make powder from MINERALS & ORES?

Wave Dry pulse drying has NO abrasion & NO corrosion of nozzles. How?? NO NOZZLE!

And there is NO HIGH PRESSURE PUMP with Wave Dry's pulse drying technology. Even with a gravity feed, your slurry will work fine.

What we DO offer is ...

  • LOTS of particle shape & size control to meet customer specs
  • more energy efficiency than spray drying
  • one step dry and calcine

Should you throw out your old spray dryer?

NOT YET! There's a good chance we can RETROFIT!



I've heard that pulse dryers can be used for DRYING PAPER. Is that true?

YES! Though no systems have been implemented yet, the technology has great potential for cutting greenhouse gas emissions and improving efficiency dramatically. LEARN MORE HERE.



Diagram of Wave Dry pulse engine burner:

Pulse Drying versus Spray Drying

Though spray drying has been a standard within industrial manufacturing, we believe that "pulse drying" will be the breakthrough drying technology for the 21st century. From minerals and ceramics, to herbicides and fertilizers, and to virtually all product types, pulse drying offers the control and precision needed to meet exacting customer requirements.

EFFICIENCY

A Pulse Dryer is more efficient than a conventional spray dryer for four main reasons:
  1. HIGHER SOLIDS - On most feedstocks, the Pulse Dryer can handle a higher "solids loading" and viscosity than a conventional dryer resulting in a dramatic effect upon the cost per dry pound of powder.

  2. HIGHER HEAT TRANSFER RATE - In a Pulse Dryer, the wet feed experiences a turbulent, pulsating gas stream having a contact temperature up to 1500 degrees Fahrenheit greater than a conventional spray dryer. Heat transfer is very high, and drying is complete within a few seconds. On some materials, thermal efficiency is as high as 1400 BTUs per pound of water removed.

  3. LOWER AIRFLOWS - Pulse Dryers require less air than conventional dryers which results in smaller drying chambers and less electrical expense for fans.

  4. LOWER MAINTENANCE - Pulse Dryers use no high-pressure pumps and no high-RPM equipment. Unlike conventional dryers, there are no "wear parts" in the atomization process.
  5. DRYER WEAR

    Pulse Dryers are an exceptionally good choice when handling an abrasive or corrosive feed since we use no high-pressure pump, no nozzles, and no rotary disk. Atomization is accomplished in the exhaust jet of the pulse combustion burner. The liquid is pumped to our atomizer at a low pressure using a simple low-maintenance pump.

    PARTICLE SIZE

    When the nozzles or rotary disks of a conventional sprayer begin to wear, the dynamics of the atomization change, and the dryer begins to produce a different particle.

    In a pulse dryer, there are no atomizer parts to wear out. Every droplet sees the same atomization energy and the same differential temperature. Thus, the distribution of particle size tends to be tighter than those obtained from a conventional spray dryer. In the diagram above we show how the particle size distribution can be affected by pulse drying process conditions. In like manner, process conditions can effect particle shape and overall process efficiency.

    With pulse drying, process conditions are controlled dynamically as your equipment operates. In spray drying, a process change means shutting down the equipment to change nozzles or adjust process conditions. But our pulse dryer permits on-line process changes without hardware adjustments so that you can dynamically influence your particle size distribution and particle shape. The two bell curves in the diagram to the left show a powder change without any hardware changes. (Click image for a larger diagram.)

    ATOMIZER FLEXIBILITY

    A pulse dryer has no restrictions on the stream of feed. It is completely modular and adjustable to your needs. The operator can easily make major changes to the atomization process to optimize the powder. We have been able, for instance, to move average paricle size from 50 microns to 100 microns and back again with process changes only ...


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