Basic Envirotech Inc. Products
generally fall into 3 groups: BASIC® Pulse Hearth Boilers,
Solid
Waste Combustors, and Dry
Acid Gas Scrubbers. Solid waste material can be used as a very efficient primary fuel source in
terms of energy recovery and very low emissions. Although based on a standard design and set of model
sizes, Basic Envirotech Inc. products are custom fitted to each
application. Type, quantity and quality of waste fuel, physical layout
restrictions, energy recovery parameters, and control requirements are among the
items studied to determine the best fit and arrangement of
equipment.
BASIC® Pulse Hearth Boilers
BASIC® Pulse Hearth® Boiler systems are
designed to generate steam energy from solid waste fuel on a
continuous, 24 hours per day operation. Solid waste
material is utilized as the primary fuel source without shredding or
expensive preparation.
Steam or hot
water is generated in both the primary chamber and in a heat recovery
boiler after the combustion is complete. The patented Pulse
Hearth® device moves the materials through the chamber so that
residues can be automatically removed without halting operation.
The BASIC® Technology is essentially a highly efficient
combustion process. The heat released from the waste "fuel" can
be recovered in the form of steam energy.
Key Benefits of the BASIC® Boiler
Proven Technology! Many years of practical field experience.
The BASIC® Technology was first developed in the 1970's,
after passage of the U.S. Clean Air Act. Several of the first plants are still
operating today. Many fuels have been tested at various times in BASIC® Pulse
Hearth® Boilers. The systems produced today benefit from these experiences
gained over the years.
Accepts most fuels with little or no preparation.
Why shred when you don't have to? Fuel preparation is
usually expensive and prone to high maintenance costs. The BASIC® Pulse Hearth®
Boiler can accept large bulky solid materials so most fuels can be fed "as is".
Excellent heat recovery efficiencies for most fuels.
The BASIC® Pulse Hearth® Boiler operates
with a low exhaust temperature.
This means that most of the heat energy from the fuel is recovered in the boiler,
not sent to the environment. Dry solid materials result in the best efficiencies.
For example, better than 75% of the heat released from tires is recovered as steam.
High moisture materials may require a drying step to get high efficiencies.
24 hour per day continuous operation.
The automatic nature of a BASIC® Pulse
Hearth® Boiler means that residue ash from solid fuel is removed without stopping
the process. The Pulse Hearth® itself conveys the fuel through the boiler furnace
chamber with no mechanical parts exposed to the process. Continuous operation
results in the most efficient usage of the system with the lowest running costs.
Computer controlled and monitored.
The BASIC® Pulse Hearth® Boiler
employs state of the art computer controls to help keep the system operating at
optimum conditions. A color graphic monitor displays real-time trends of system
performance. The system keeps tabs of this data and so it is available for
creating management reports on operation of the system, or for data submissions
to local authorities if required. This electronic data can be exchanged over
telephone modem or via the Internet on an "as needed" basis. We also use these
features to provide customer technical support from our Chicago area
office.
Energy can be recovered as steam, superheated steam, high pressure hot water,
or other heat transfer fluids.
The energy released from the fuel
must be harnessed in order to do any good. Saturated steam is often used in
manufacturing plants for process, heating, and even cooling requirements. A
stand-alone BASIC® Pulse Hearth® Boiler that processes waste fuel as its primary
responsibility can export the energy released to nearby steam customers. Large
applications can produce electricity from superheated steam with a condensing
turbine/generator. Pressurized water or specialty heat transfer fluids can be
heated directly with a BASIC® Pulse Hearth® Boiler and fed into a district
heating loop.
Designed for long operating life span.
The BASIC® Pulse Hearth® Boiler
is a heavy, rugged piece of equipment. We take extra care in selecting refractory
material linings and closely monitor their installation.
Wide range of model sizes.
The range of BASIC® Pulse Hearth®
Boiler models is positioned for industrial and commercial users. The smallest system
has a nominal capacity of 200 kg/h of moderate calorific value fuel. The largest
single system we have designed can accommodate up to 200 tons/day of solid fuel.
(Obviously, the amount of fuel that any given boiler can consume is directly
proportional to the calorific value of that fuel. A system that can accept 100
tons per day of lower calorific fuel would have a smaller capacity of higher
calorific value fuel.)
Customized to meet your needs.
Each application for a BASIC® Pulse
Hearth® Boiler has different specific requirements than the next. Type of fuel;
physical layout of the plant; mode of heat recovery; fuel storage and handling
requirements; ambient conditions; other ongoing operations; local regulations.
All these items are taken into account when building a new BASIC® Pulse Hearth® Boiler.
Many applications for treatment of solid waste have no need for
the steam energy produced by a BASIC® Pulse Hearth® Boiler.
However, the same long life design and combustion efficiency benefits
that make the BASIC® Pulse Hearth® Boiler such a good value, are
available in a combustor only design, as well. Generally, applications
with difficult or expensive waste treatment options will be
economically justifiable when considering a BASIC® Solid Waste
Combustor.
The BASIC® Dry Acid Gas Scrubber can be used in conjunction
with a non-heat recovery combustor with the addition of an Evaporative
Cooler or other means to cool the flue gases prior to the scrubber
inlet.
To fully complement the remarkable low emissions from the BASIC combustion process, an extremely efficient and completely dry particulate and acid gas scrubbing system
has been developed. This dry scrubbing system is now available to existing installations with combustion processes other than BASIC systems.
The BASIC Dry Acid Gas Scrubber meets the U.S. EPA and Canadian CCME requirements for acid gas emissions, particulate emissions, dioxin emissions, lead, cadmium and mercury emissions from
Hospital, Medical and Infectious Waste Incinerators (HMIWI). Basic Envirotech Inc. also has the know-how to tackle combustion-related emission concerns including carbon monoxide and nitrogen oxides.
Basic Envirotech Inc. can offer supply and installation of a complete scrubber retrofit to an existing plant. Please call us to discuss your own application.
Basic Envirotech Inc. 
