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Palmer
Manufacturing has specialized in the processing of sands in its 40 years
of business. We know sand. If you are looking for a simple continuous or
batch resin/chemical heater for proppant production using silica and
other frac sands, we can help. Palmer makes electric resin/chemical
heaters up to 300kW. Tonnage output varies with the required output
temperature, but we have sold individual systems up to 60 tons per hour.
However, with our modular design, a simple sand splitter and some pipe
allows you to use parallel processing units to meet your tonnage
requirements.
Why use electric heat? Simplicity and
safety. Our SCR controlled heaters are simple to install, operate, and
maintain. While gas units are often larger in single unit capacity, they
are also vastly more complicated (and explosive) if improperly
maintained. The Palmer FH series for silica frac sand is designed for
simplicity.
Batch or Continuous?
Many current coating plants use batch mixing
processes. In other words, put 6000# of sand in the mixer, add chemical
components, and mix for some predetermined time. Palmer can utilize its
existing design for this style of heating. Essentially, some amount of
sand enters the heater body, the sand is heated to a predetermined
temperature and then the entire batch is released to the next process.
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Palmer No-Bake Equipment Line |
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An alternative to this is using a continuously fed heater that constantly puts out, let’s say, 1000
lbs per
minute at a predetermined temperature. A batch hopper before and after
the heater allows the heater to run continuously while still batching
into your mixing equipment.
A last alternative is to use a constant flow
continuous heater to feed a constant flow continuous mixer. In this
case, the entire system runs at, say 1000 lbs / minute, without surges,
starting, and stopping. Once the process is up to speed it runs
continuously greatly stabilizing the process flow.
SCR Controls
Palmer uses SCR element controls exclusively. They cost a bit more on the front side, but provide long
term savings in energy usage, process control, and component life. Using
SCR’s we are able to accurately meter the amount of energy being applied
to the sand. So rather than turning on and off a large bank of heating
elements, which causes thermal cycling and fatigue, we simply regulate
the amount of power applied to the elements in smooth transitions
greatly improving element life.
What can we heat?
- Resins
- Chemicals
- Sand
- Ceramic Sphere
- Free Flowing Minerals
- Frac Resin/Chemical Heaters (FH) are
of a fluidized bed design. So, if we can fluidize the material, we
can heat it. Gas fired fluid beds are also available. Not sure if it
is right for your material? Send us a sample and we will test it for
free.
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