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UNUSED
MEDICAL & WASTE INCINERATOR Hazardous Waste /
Non-Hazardous Waste / Hospital Waste Capacity 50 - 200*
Tons per day* 50/60 Cycle Result
Equals a Roughly 10% Difference in Speed (* By
Modification) DESCRIPTION
OF THE SYSTEM ROTARY KILN: The Primary Combustion Chamber of the
incinerator is a rotary kiln, 12' diameter x 20' long, designed to have a
nominal capacity of 50 Tons per 24 hours and an approximate heat release of 20
MM BTU/hour. The primary combustion
chamber is followed by a Secondary Combustion Chamber, equipped with a 5 MM
BTU/hour supplementary oil burner. This facility has
been operated only for a short test conducted after completion of construction. The incinerator air
pollution control equipment were tested for: 1.
Particulate
removal efficiency 2.
Halogen
removal efficiency 3.
Destruction
and removal efficiency This
system passed all tests. The
high temperature thermal processing facility design is comprised of a building
housing front end handling equipment which allows discharge of received
materials to be disposed of into an enclosed dual push-pit with a single ram
feeder. Materials (contaminated hospital wastes and empty pesticide containers)
are fed by a metering conveyor and furnace feeder into a rotary kiln combustion
chamber designed to burn at 2600° F. Combusted inert ash is dropped into a
quench tank from whence it is removed by a drag conveyor. Spent gases are
routed through an after burner section where it is retained for at least two
seconds above 2200° F which breaks down the toxic chemicals. Gas cleaning is
provided by passing them through a quench tower, venturi
scrubber, demister, packed tower, and a plume eliminator such that a clean
invisible emission goes up the stack. Scrubber water is chemically neutralized
before injection into the sanitary tower. Method
of Operation Toxic
materials (delivered in packer trucks) and contaminated hospital wastes
(delivered in containers) are received at the upper level where they are
deposited into enclosed waste pits. Empty 30 gallon and 55 gallon containers
are also delivered at the upper level where a fork truck mounted drum handler
feeds them into a shredder where they are shredded and discharged directly into
the enclosed toxic waste pit. Feeding
of materials into the incinerator is controlled by the plant operator from the
control room. Hospital wastes and toxic wastes are mixed by pushing materials
from the pits into the hopper of the ram feeder by activation of hydraulically
operated pit rams. The percentage of hospital waste fed is determined from the
nature of the materials in the toxic waste pit (i.e. high non-combustible
content/low percentage of toxic waste). It
should be noted that all waste materials are enclosed from the time they are
received until injected into the incinerator. Likewise a portion of the
combustion air is drawn from the feed enclosure thus keeping it at a slight
“negative” pressure further assuring safety to operating personnel from
possible toxic dust particles. Materials
are then pushed from the ram feeder onto the incinerator feed conveyor and then
at an adjustable rate into the incinerator feed ram hopper. Incinerator feed is
then accomplished by opening the fire door and injecting the material from the
ram hopper into the rotary kiln. Provisions
for handling limited quantities of bulk waste pesticides on an occasional basis
are included in the upper level. Drums or other containers full of waste bulk
pesticide are delivered to the drum processing room. The materials must then be
positively identified and an acceptable disposal rate is determined. Liquid
materials are dumped into a tank from whence it is pumped at an adjustable
controlled rate to the incinerator feeder for injection into the kiln. Powdered
or soluble palletized or crystal materials are dumped into a receiving chamber
and then are conveyed into a mixing chamber where they are mixed with liquid
into a slurry. The slurry is then pumped at an
adjustable controlled rate to the incinerator feeder as above. Materials
in the rotary kiln are combusted at a controlled 2600° F combustion temperature
to assure complete destruction of the toxic elements and reduction of the
non-combustibles to a sterile slagged ash.
Temperature control is maintained by adjusting the rate of waste fed into the
kiln, the rate of fuel burned in the supplemental burner, and the amount of air
drawn through the kiln. Dwell time of solids within the kiln is controlled by
adjusting speed of kiln rotation. Combustion
gases at 2600° F are introduced into the afterburner which is sized to provide
at least two seconds dwell time in the afterburner section thus thermally
destroying all toxic elements. Gases leave the afterburner at approximately
2250° F with no supplemental fuel required. An oil or gas fired auxiliary
burner which is used to preheat the afterburner could elevate this temperature
if required. Normal
operation, while thermally destroying toxic wastes, routes the products of
combustion into the scrubber system. Gases are first tempered by a water spray
in the pre-cooler before being introduced into the plume eliminator at
approximately 1400° F. These gases then are cooled to approximately 1250° F as
the gases from the induced draft fan are heated from approximately 185° F to
approximately 300° F. Caustic solution is added to the cooling water at this
point to adjust the pH of the water entering the variable throat high energy venturi. Supersaturated
gases and surplus liquid at approximately 185° F then pass through the demister
where the gas stream is stripped of excess water droplets. Scrubber water
containing any remaining organic matter or fly ash is collected in the demister
sump and is bled off for disposal. Saturated
gases at approximately 185° F then enter the packed tower where water sprays
and packing remove at least 99% of the halides from the gas stream Clean
gases are then drawn through the induced draft fan and injected into the plume
eliminator where they are reheated to approximately 300° F and exhausted up the
stack. Alternate
operation while not burning toxic wastes does not require use of the scrubber
system. The
INCINERATOR SYSTEM is comprised of
the following: ·
25
Million BTU/hr. Rotary Kiln Incinerator and Secondary Combustion Chamber ·
VENTURI
Scrubber ·
Packed
Tower and Plume Eliminator Air Pollution Control System and Auxiliary
Equipment. ·
Ducts ·
Stack ·
Instrumentation
and Controls SYSTEM COMPRISES: 1.
Ram
Feeder with Guillotine 2.
Rotary
Kiln 12' Diameter x 20' Long 3.
Secondary
Combustion Chamber - 9'11" I.D. Refractory x 27' Long. 4.
#2
Fuel Oil Burners with Propane Pilots with Combustion Air Blowers and Burner
Monitor Panels for Fail-Safe operation a.
ROTARY
KILN BURNER: 20,000,000 BTU/Hour - North
American b.
SECONDARY
COMBUSTION CHAMBER: 5,000,000 BTU/Hour -
North American c.
Burner
Systems and Controls, Fuel Oil Pumps, Piping, Valves, etc. 5.
Control
Panel with Controllers: a.
Temperature
Records b.
Temperature
Indicating Controllers c.
Differential
Gauge for Absorption Tower Pressure Drop d.
Liquid
Level Controller for Surge Tank Level Control Click items below for additional information: Facility Operation Management - PDF file Re-Assembly Sketches - PDF file Call (718) 492-7400
for Details! ALL INFORMATION AND
SPECIFICATIONS IS SUBJECT TO A
BUYERS REVIEW AND CONFIRMATION THE EQUIPMENT IS BEING
OFFERED AND SOLD FOR THE ACCOUNT OF THE OWNER |
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Worthington Powered Diesel Electric
Machinery Generators • 1,770
Horsepower • 2,400 Volt • 1.25 Megawatt per Generator • 7.5 Megawatts Total This
set of six generator units has only been used for standby power. These turbocharged generator sets
have an amazing total output of 7.5 megawatts! The attached generators are
horizontal synchronous machines rated at: ·
1,563 KVA ·
1,250 KW ·
0.80 PF ·
2,400 Volts ·
3 Phase ·
60 cycle AC when operating at 360
RPM The generator rotors are connected
directly to the engine crankshafts and are supported by the engine and outboard
bearings. The 20 KW exciters are driven by multiple V-belts from the ends of
the generator rotors. These generators are designed to run
on heavy oil, diesel, or alternative green fuels such as biodiesel. These units
would qualify for your green power requirements.
Worthington
diesel engines ·
SEH-7 1J10-7613 ·
SEH-7 2J10-7613 ·
SEH-7 3J10-7613 ·
SEH-7 4J10-7613 ·
SEH-7 5J10-7613 ·
SEH-7 5J10-7612 Electric
machinery generators · VO-3412 · VO-3413 · VO-3414 · VO-3415 · VO-3416 Brochure - PDF file |