The PulverDryer System is more than a materials reduction
machine; it's a self-contained materials processing
product, which will save you time and money. It pulverizes,
blends, mixes, extracts moisture and homogenizes materials
instantly!
The PulverDryer System is versatile, cost effective,
efficient and durable making it the ideal tool for a
broad range of de-watering and pulverizing applications
in a variety of global markets.
Materials able to be processed by the PulverDryerTM
include:
The
PulverDryer™ System excels in pulverizing soft rock minerals
into a fine particle size. Limestone, gypsum, phosphate rock,
zeolite, clay, and other soft-rock minerals are all processed
into fine, dry powders. Generally, the PulverDryer™ pulverizes
soft rock minerals to particle sizes of less than 75 microns
(below 200 mesh) at production rates of 5-7 tons per hour.
The energy cost per hr/ton used by the PulverDryer™ to operate
is less than smaller horizontal ball mills that can not achieve
the same fine pulverization and particle size consistency
or the supplemental drying achieved by the Pulverdryer technology.
The PulverDryer System can be used for pulverization of "solution
grade" limestone, phosphate rock, and/or gypsum. Solution
grade fineness (less than 75 microns) is necessary when soil
amendments are distributed to crops through irrigation systems.
The PulverDryer is easily able to dry glacial clay from initial
moisture content of 10% down to 1% final moisture while simultaneously
pulverizing the material to sub-micron sizes.
The
total volume of animal manure (cow, hog, chicken, and horse)
in the United States is approximately 130 times greater than
that of human waste. Animal manure has a long tradition of
use as an effective fertilizer. However, with modern intensive
agricultural production, manure volumes can exceed the capacity
of nearby croplands to absorb the nutrients in the manure.
Numerous cases have been reported in the media of inappropriately
spread manure contaminating both surface and groundwater and
seriously affecting the environment and human health.
The
PulverDryer System can reduce animal manures to a fine dry
powder, which is virtually free of both pathogens and offensive
odors. In this dry state (approx. 10% moisture), the odor
is significantly reduced, and the manure can be stored, efficiently
transported, and sold as a fertilizer. The manure can be blended,
at the time of production, with a variety of other minerals
and chemicals for manufacture of custom fertilizers. Once
processed, the manure can also be easily applied to farmlands.
The key advantages of the PulverDryer™ System is pathogen
reduction and drying of both municipal and animal waste to
85% solids.
The lower operating costs and small machine foot print requirements
of an average 400 sq feet . compared with conventional hammer
mill and rotary drum dryer systems is unmatched in the industry.
A
single stage PulverDryer system is able to perform batch recycling
to achieve maximum dryness. The system comes with two cyclone
product separators and an in-feed hopper to control feed rate.
Conventional systems require significantly more operating
energy to dry manures compared to the PulverDryer™ System.
Dried manure and other biomass can have value as a fuel source.
PulverDryer and key engineering firms are now working on methods
to cleanly and cost effectively burn manure and generate "green"
power.
Sludge from papermaking are generated in large quantities
throughout North America. Currently common sludge management
practices of landfilling and land-application are under increased
environmental scrutiny and are increasingly more costly.
The PulverDryer™ can de-water sludge and enable the separation
of product and water or product in general such as paper fiber
from other paper components such as wall-board (sheet-rock).
The removal of moisture can also significantly increases
the fuel value of sludge and reduce the ash created during
combustion. PulverDryer engineers have designed turnkey solutions
using the PulverDryer™ System to recycle sludge from municipal
waste to the pulp and paper industry.
About
half of the electricity generated in the United States comes
from coal-fired power plants. In all large power plants, coal
is dried and pulverized in a ball mill to under 75 microns
(200 mesh) before being burned. The drier the coal, the higher
the value for burning. Coal's moisture content can vary widely
from 5 to 50 %. Recent testing by PulverDryer indicates that
bituminous coal can be dried from 15 % to 2 % final moisture
content and pulverized to a very small or a median diameter
of less than 50 microns at a production rate of 5 or 7 tons
per hour/per-unit. The pulverization and moisture extraction
energy consumption per hr/ton is less than ball mills.
Unlike ball mills, the PulverDryer System creates the energy
to dry the coal: hence it is more efficient than competitive
systems. With the PulverDryer System, it is possible to increase
the value of low sulfur, high moisture grade coals, such as
Power River Basin Coal. PulverDryer engineers have conducted
successful testing to increase the BTU values of PRB Coal
by extracting the moisture and reducing the particle size
of the material.
Sewage
sludge or "bio solids" are created at wastewater treatment
plants as sewage water is processed and purified. Currently
many municipalities are facing challenges to environmentally
and economically dispose of these solids. The PulverDryer™
System can de-water bio solids to reduce their volume and
the associated transportation and disposal costs. The PulverDryer™
System is certified to meet the US Environmental Protection
Agency rules for the destruction of pathogens including salmonella,
e-coli, and fecal coli forms. The dry powders produced by
the PulverDryer™ System are suitable for land application
or for use as a fuel source where they can replace fossil
fuels. PulverDryer Engineers have conducted various BTU testing
on the dry powders in laboratory tests to verify this concept
with solid results. Additionally, as the PulverDryer can operate
as a "blender/homogenizer" of various materials, it is possible
to dry and resize the bio solids with moist coal and create
a "blended" product of 50% coal and 50% bio solids that achieve
optimum burning results with maximum BTU's. CLICK
for CURRENT PROJECT of SEWAGE SLUDGE
Gypsum
wallboard comprises about 10% of all the waste materials left
over following construction/renovations in North America.
When gypsum degrades in the low oxygen environment of landfills,
hydrogen sulphide is generated. This gas contributes to both
air and water pollution. As a result, government agencies
are looking to encourage recycling to keep drywall out of
landfills. Currently there are only a few specialized facilities
for processing waste drywall in North America. The PulverDryer
System reduces drywall to a powder that can be utilized as
a soil amendment or recycled into the production of new building
materials. The powder produced from the processing of drywall
is compact, consistent in particle size, dry (less than 10%
moisture content) easily packaged or bulk loaded for distribution.
Though
already recycled in large quantities, the value of recycled
glass is generally low and the costs of transportation can
make recycling uneconomical. Glass fragments introduced to
the PulverDryer system in pieces 2" in diameter, or less,
are pulverized at the rate of 5 - 8 tons per hour into a fine
powder. The powder is smooth and fine to the touch, without
sharp edges. The maximum particle size is about 50 microns
and about half of the powder is below 25 microns. Repeated
cycles thru the system can further reduce the micron size.
Even finer particle sizes have been achieved with the PulverDryer
system. No other pulverizer or grinder can produce sub-micron
glass powder in such large quantities while consuming so little
energy. Such fine glass powder can command high prices as
an industrial product. Photos above show recycled glass being
used in new tile production.
Wood Waste
In
North America, wood waste, unsuitable for timber or pulp can
be a disposal problem for the forestry industry. Wood waste
can be efficiently burned and is a renewable energy source;
but wet wood or sawdust is often only marginally economical.
This is because 40% of the heat value in the wood is used
to dry the moisture in the wood product.
The PulverDryer System is an alternative to traditional methods
of drying small wood products, such as sawdust. The PulverDryer
combines both the pulverizing and drying operations in one
compact machine, thereby simplifying the process. Furthermore,
the system is tolerant of contaminants such as dirt and stones
that can cause sparking and fires in hammer mills.
The PulverDryer System can reduce sawdust from a initial
moisture content of 43% down to 15%, or less, while producing
a fine dry powder as an end product. The mechanical energy
used by the PulverDryer™ is less than any other conventional
(heat) drying system.
Food Processing Waste
The
food processing industry produces millions of tons of wet
(food waste) materials every business day in the USA and the
rest of the world. The food industry in particular produces
large amounts of by-products from both animal and agricultural
processing. Such companies typically manage these materials
utilizing pulverization and drying methods that involve hammer
mills, rotary drum dryers and spray dryers. PulverDryer has
proven to be a superior alternative to drying and resizing
these materials into forms that can create new products for
marketing or simply a more manageable and environmentally
friendly method of disposal. PulverDryer accomplishes this
at a much lower cost per ton then any of the other known methods.
In many applications, users need to dispose of animal bone
residue in an economical and/or profitable methods. PulverDryer
resizes diffucult animal bone configurations such as hog bone,
hog teeth, chicken and cow bone residue to a fine particulate.
PulverDryer is working with various attapulqite
clay producers to develop methods and PulverDryer machines
that will offer the mining operators a reduction in operating
costs and improved end products that will expand attapulqite
markets by creating very small sizes of processed attapulqite.
The current methods of mining and processing attapulqite
involve strip mining the raw product
and delivery to a processing plant. At the processing
plant the material is feed into large crushers to resize
it several times.
After the material is properly crushed and recrushed
to smaller and smaller sizes, it is sent through a large
drum dryer to remove the moisture from the clay.
After the material is dried it flows through a sizing
classifier to determine the proper sizes of the product.
Upon completion of plant processing, one of the products
produced is Cat liter.
PulverDryer offers the opportunity to completely
rethink the processing of attapulqite clays. As PulverDryer
is capable of processing material, to resize and dry materials
at the same time, the opportunity exists to selectively
size the product and de-water it to predetermined customer
requirements in one or multiple passes through the PulverDryer
machine. Very small sizes of attapulqite materials have
been achieved by PulverDryer up to 10 microns or less.
Sizing is accomplished by simply running the material
back thought the machine.
Banana
fiber from the stalk of the banana plant is a unique
material that holds a water content of 97% of the stalk
by weight in its harvested conditions. Growers of Banana
fruit are now being faced with strict regulations for
disposal of banana stalks after the fruit is harvested.
PulverDryer has
proven that it can take pressed raw banana stalk and
simultaneously separate fibers and extract moisture
resulting in a product up to 97% solid content. The PulverDryer batching system
does this without harming the individual fibers of the
valuable banana stalk. The dried fibers then have several
commercial usages and a serious environment problem
has been solved by turning waste materials into a higher
value product.
The
PulverDryer™ System excels in pulverizing soft rock minerals
into a fine particle size. Limestone, gypsum, phosphate rock,
zeolite, clay, and other soft-rock minerals are all processed
into fine, dry powders. Generally, the PulverDryer™ pulverizes
soft rock minerals to particle sizes of less than 75 microns
(below 200 mesh) at production rates of 5-7 tons per hour.
The energy cost per hr/ton used by the PulverDryer™ to operate
is less than smaller horizontal ball mills that can not achieve
the same fine pulverization and particle size consistency
or the supplemental drying achieved by the Pulverdryer technology.
The PulverDryer System can be used for pulverization of "solution
grade" limestone, phosphate rock, and/or gypsum. Solution
grade fineness (less than 75 microns) is necessary when soil
amendments are distributed to crops through irrigation systems.
The PulverDryer is easily able to dry glacial clay from initial
moisture content of 10% down to 1% final moisture while simultaneously
pulverizing the material to sub-micron sizes. 
The
total volume of animal manure (cow, hog, chicken, and horse)
in the United States is approximately 130 times greater than
that of human waste. Animal manure has a long tradition of
use as an effective fertilizer. However, with modern intensive
agricultural production, manure volumes can exceed the capacity
of nearby croplands to absorb the nutrients in the manure.
Numerous cases have been reported in the media of inappropriately
spread manure contaminating both surface and groundwater and
seriously affecting the environment and human health. 
The
PulverDryer System can reduce animal manures to a fine dry
powder, which is virtually free of both pathogens and offensive
odors. In this dry state (approx. 10% moisture), the odor
is significantly reduced, and the manure can be stored, efficiently
transported, and sold as a fertilizer. The manure can be blended,
at the time of production, with a variety of other minerals
and chemicals for manufacture of custom fertilizers. Once
processed, the manure can also be easily applied to farmlands.
A
single stage PulverDryer system is able to perform batch recycling
to achieve maximum dryness. The system comes with two cyclone
product separators and an in-feed hopper to control feed rate.
About
half of the electricity generated in the United States comes
from coal-fired power plants. In all large power plants, coal
is dried and pulverized in a ball mill to under 75 microns
(200 mesh) before being burned. The drier the coal, the higher
the value for burning. Coal's moisture content can vary widely
from 5 to 50 %. Recent testing by PulverDryer indicates that
bituminous coal can be dried from 15 % to 2 % final moisture
content and pulverized to a very small or a median diameter
of less than 50 microns at a production rate of 5 or 7 tons
per hour/per-unit. The pulverization and moisture extraction
energy consumption per hr/ton is less than ball mills. 
Sewage
sludge or "bio solids" are created at wastewater treatment
plants as sewage water is processed and purified. Currently
many municipalities are facing challenges to environmentally
and economically dispose of these solids. The PulverDryer™
System can de-water bio solids to reduce their volume and
the associated transportation and disposal costs. The PulverDryer™
System is certified to meet the US Environmental Protection
Agency rules for the destruction of pathogens including salmonella,
e-coli, and fecal coli forms. The dry powders produced by
the PulverDryer™ System are suitable for land application
or for use as a fuel source where they can replace fossil
fuels. PulverDryer Engineers have conducted various BTU testing
on the dry powders in laboratory tests to verify this concept
with solid results. Additionally, as the PulverDryer can operate
as a "blender/homogenizer" of various materials, it is possible
to dry and resize the bio solids with moist coal and create
a "blended" product of 50% coal and 50% bio solids that achieve
optimum burning results with maximum BTU's. 
Gypsum
wallboard comprises about 10% of all the waste materials left
over following construction/renovations in North America.
Though
already recycled in large quantities, the value of recycled
glass is generally low and the costs of transportation can
make recycling uneconomical. Glass fragments introduced to
the PulverDryer system in pieces 2" in diameter, or less,
are pulverized at the rate of 5 - 8 tons per hour into a fine
powder. The powder is smooth and fine to the touch, without
sharp edges. The maximum particle size is about 50 microns
and about half of the powder is below 25 microns. Repeated
cycles thru the system can further reduce the micron size.
In
North America, wood waste, unsuitable for timber or pulp can
be a disposal problem for the forestry industry. Wood waste
can be efficiently burned and is a renewable energy source;
but wet wood or sawdust is often only marginally economical.
This is because 40% of the heat value in the wood is used
to dry the moisture in the wood product. 
The
food processing industry produces millions of tons of wet
(food waste) materials every business day in the USA and the
rest of the world. The food industry in particular produces
large amounts of by-products from both animal and agricultural
processing. Such companies typically manage these materials
utilizing pulverization and drying methods that involve hammer
mills, rotary drum dryers and spray dryers. PulverDryer has
proven to be a superior alternative to drying and resizing
these materials into forms that can create new products for
marketing or simply a more manageable and environmentally
friendly method of disposal. PulverDryer accomplishes this
at a much lower cost per ton then any of the other known methods.
In many applications, users need to dispose of animal bone
residue in an economical and/or profitable methods. PulverDryer
resizes diffucult animal bone configurations such as hog bone,
hog teeth, chicken and cow bone residue to a fine particulate.
