Provide furnace with an interior volume, exclusive of the space inhabited by the refractory hearths and walls, not less than two cubic meters using a primary combustion chamber volume above the burning hearth of less than 1.5 cubic meters, Provide a comprehensive waste burning system including combustion air fan, secondary and primary burners, air supply and burner controls, ducts, breeching, stack, bottom ash conveyor and set, feed rams, flame tube water tubing, air compressors, slurry pumps, water pumps, fly ash collection system.
2.5OPERATING AND PERFORMANCE REQUIREMENTS
2.5.8Weight Reduction
Provide an incineration effective at reducing waste to an ash to not exceed 5 percent of the overall combustible charges when analyzed as specified.
2.5.9Stack Discharge
Provide pollution control equipment to meet all applicable emission regulations and utilize the most stringent requirements.
Shop Drawings: Detail Installation Drawings
NEMA 4 control panels for outdoor installations with electric strip heaters for corrosion control. Flush bracket all controls, instruments, and other gear at the mill and examine the assembly before shipment. Furnish a lock and two keys. All controls and instruments will probably be identified with nameplates.
•Draft Gauges
10
4.79 kPa 100 psf live load plus dead load.
Provide every scrubber system with bulk storage silos, unloading facilities for trucks, dust control filters, mixing equipment, slurry tanks, pumps, compressors, induced draft fans, and all valves and piping required to provide a complete and operating system.
Noise level at 305 mm 1 foot in any incineration component shall not exceed 85 dBA. Provide sound dampening devices on gear.
2.5FURNACE CONSTRUCTION
2.5.7Primary Chamber
Provide insulation conforming to ASTM C 612, Class 5 and made to be used with timber or reinforced concrete or noncombustible material, with a flame resistant rating of less than 3 weeks, to reduce damage to the foundation from excess heat. As a minimum, provide insulation thickness to limit the temperature of the outer casing to 66 degrees C 150 degrees F maximum in an ambient temperature of 21 degrees C 70 degrees F once the unit is functioning at full-rated capacity. Use insulating cement conforming to ASTM C 195 or ASTM C 196.
2.5.10Refractory
Owner or his representative approval are required for submittals. SUBMITTAL PROCEDURES:
Indicate and clearly identify a tool evaluation group close every thermocouple well to connect portable equipment to confirm installed equipment.
Provide pressure gauges conforming to ASME B40.100, pressure detecting class, single Bourdon tube design, appropriate for detecting air pressure.
•Thermocouples
Shield all equipment delivered and placed in storage in the weather, humidity and temperature variations, dirt and dust, or other contaminants.
Lead: 44 gr/106dscf (0.10 mg/dscm), 12-hour typical as measured by EPA Reference Method 29
Adjust all emission limits to 7 percent oxygen, dry basis. The following definitions were used above:
NOTE: The incinerations should be effective at decreasing medical waste. The composition of Type 4 waste as indicated in the following table:
WASTE VS. CONTENT
Type Noncombustible Solids (Max% Content
Provide stack support in accordance with NFPA 82 and NFPA 211, as important. Provide lateral and vertical supports for exterior chimneys to resist wind forces.
•Roof Loads
C.Enclose or shield belts, pulleys, chains, gears, couplings, projecting setscrews, keys, and other rotating elements situated where any person may come in close proximity thereto. Guard and cover high-temperature gear and piping situated where they could endanger personnel or create a fire danger with insulation of type specified for service.
Provide connectors to connect the incineration to the stack unless the stack is attached directly to the incineration, in accordance with NFPA 211.
B.Secure refractory to the doors so as to avoid sagging. Taper refractory edges to clean door frames during movement of swinging doors. Weld metal steel hooked bars to door cover to anchor the refractory, to enable safe operation by a single person, and keeping equilibrium of door manages to allow operation of doors without gloves or other protective apparatus.
c.Interlock charging doors primary burners and air supply in order that the burner ignition shuts off and beneath fire air dampers shut when doors shut. Gasket door closed should be with non- asbestos packing.
A.Include in control gear and tools, timers and fan controls, time clocks, relays, operating switches, indicating lights, gauges, engine starters, fuses, alarms, and circuit elements of the management system, and other controls and instruments necessary for unit operation, with system in accordance with the FM APP GUIDE.
b.Mount the controls and instruments on one or more free-standing control panels conveniently situated to the incineration, and placed to allow operating personnel effectively monitor incineration operations.
Complete Hydrocarbons: 70 ppmv, 1-hour typical as measured by EPA Reference Method 25 Mercury: 210 gr/106dscf (0.47 mg/dscm) or 85 percent decrease, 12-hour typical as measured by EPA Reference Method 29;
B.Provide each significant component of gear with the maker ’s name, address, type or style, model or serial number, and catalog number on a plate secured to the gear
Interlock automatic control circuit systems and manual switches to prevent hazardous conditions or the release of excessive amounts of air pollutants.
•Control Panel
Particulate Matter: 0.013 gr/dscf (30 mg/dscm) as measured by EPA Reference Method 5; Opacity: 5 percent, 3-minute typical as measured by a CEMS;
Design roof purloins and beams for dead load plus an extra 0.24 kPa 5 psf uniformly distributed load and an extra 22.4 kN 5000 lb roving concentrated load plus drift variable where applicable]. Ascertain wind uplift forces according to ASCE/SEI 7-05 Section 6 with a 100-year recurrence interval and requirements.
NOTE: Indicate design breeze force that the stack will have to withstand. Additionally include in atomic design resistance, and organize with subparagraph Lateral Loads under paragraph
Design gear platforms for 7.18 kPa 150 psf live load plus a concentrated load of gear weight at set up place, plus dead load.
1.3.4 Lateral Loads
Provide draft stripes conforming to ASME B40.100 using a diaphragm or bellows actuating program, a circular scale, a zero adjustment screw, and appropriate shutoff cocks.
•Pressure Gauges
Provide equipment and materials that are the normal products of a manufacturer regularly engaged in the production of the product which essentially duplicate items which have been in satisfactory use at least two decades before bid opening.
Provide electrical motor-driven gear as specified, complete with motors conforming to NEMA MG 1, engine starters, and controls, with enclosures as indicated. Provide electrical equipment, including motors and wiring with electrical characteristics as indicated or specified.
D.Provide every burner using FM APP GUIDE approved and listed flame
Provide test holes, near the evaluation team exhibited on the contract drawings, and match with standard weight, 50 mm 2 inch diameter, black steel pipe welded to the casing. Stretch the sleeve in the exterior of the casing to not less than one-half the thickness of the refractory lining. Form the
refractory opening in the end of the pipe to the inside wall surface to shield the end of the sleeve from reflected heat, and match with a brass screw cap. Submit a copy of the Instrument Readings to the Contracting Officer.
2.3FLUE GAS CLEANING SYSTEM
Provide a complete flue gas cleanup program (FGC) comprising a Powdered activated carbon injection system, and a acid gas scrubber system capable of continuous operation operation compatible with the incineration capability and program specified.
Sulphur Dioxide (SO2): 45 ppmv, 12-hour typical as measured by a CEMS;
Provide an abrasion resistant refractory hearth constructed of heat-resistant, thermal-insulating clay conforming to ASTM C 401, Class R vinyl or cast able type, high-duty class, capable of supporting less than double the hourly burning speed and preventing leakage of waste fluids.
Provide 4 millimeter sheet steel walls fortified with steel framing and provided with door frames and mounted on structural steel skids.
2Attach a corrosion-resistant steel spark arrestor fabricated of 1.21 millimeter 18-gauge, 13 mm 1/2 inch mesh wire screen to the peak of the stack. Provide a corrosion-resistant steel weather cap. The
temperature of the casing shall not exceed 50 degrees C in an ambient temperature of 21 degrees C 70 degrees F. Provide adequate support for almost any stack installed on top of the incineration without placing any of the load on the refractory walls of the incineration.
•Breeching
The centrifugal type with forward-curved blades, and statically and dynamically balanced fan wheels Comply with the fan standards of AMCA 99, and CID A-A-59222, centrifugal furnace enthusiasts, rated for flow rate, pressure, power, speed of rotation, and efficiency in accordance with AMCA 210. Provide forced draft fans, where required, made for handling hot flue gas at the maximum outlet temperature of the incineration.
A.Submit maker ’s product data, catalog cuts, illustrations, schedules, performance charts, instructions, brochures, diagrams, audio level data, calculations for gas retention times, combustion and air emissions data, and other information to confirm compliance with requirements of the contract files.
1- Parts per million by volume (ppmv). 2- Dry standard cubic feet (dscf);
Furnish all special tools for assembly, modification, setting, or maintenance of equipment specified as standard fittings.
•DELIVERY, STORAGE, AND HANDLING
5- mg (mg);
2.5.10Noise
Construct bypass dampers to present a leakage rate of less than one percentage at 1.5 times the maximum operating pressure.
2.4.4Test Holes and Test Groups
Provide flue gas cleaning equipment capable of meeting emission requirements specified using lime
2.8.2 Burners
Provide a sheet steel, weather tight panel, conforming to UL 50. Provide
B.Make proper provision for expansion and contraction between incineration foundation and flooring; pack the joint with appropriate non-asbestos rope and meet appropriate compound which will not become tender at a temperature of 40 degrees C 100 degrees F.
Provide bulk storage capability for all required products to maintain a minimum operating period of one week between deliveries.
2.3.3Adsorbers
•Access
Provide a lover capable of providing sufficient atmosphere for burners and less than 150 percent than the required by producer.
Given capacity without exceeding the nameplate rating of the engine. Provide manual or automatic management, protective or signal devices required for the operation specified, and any control wiring required for controls and devices specified but not revealed.
1Provide a sectional, circular cross section exhaust stack of the type, dimensions, and variety of segments with regard to the requirements of the stack and refractory producer to satisfactorily support the refractory lining, allow expansion, and prevent cracking of the refractory; adapting to NFPA 211. Secure the refractory to the casing by steel anchors.
Provide powdered activated carbons (PAC) especially made for the elimination of mercury, dioxins, and furans using a high percentage of pore sizes in the 20 to 50 angstrom range, with PAC completely devolatilized.
2.3.6Pebble Quick Lime Analysis
Clean the inner surfaces of the outer shell of the incineration, the exterior surfaces of the outer casing, the control panel, and piping, except corrosion-resistant steel, to base metal for elimination of oil and rust before primer is used at the mill.
5
A.Provide LPG burners to your primary and secondary combustion chambers, with every burner as an entire assembly containing fuel and control systems, and accessories.
Cadmium: 22 gr/106dscf (0.05 mg/dscm), 12-hour typical as measured by EPA Reference Method 29;
Provide equipment that supplies the correct quantity of air to allow complete controlled combustion. Include forced draft fans, draft gauges, dampers, damper actuators, linkage, and appurtenances required to keep a negative draft in primary chamber so as to offer optimum performance whatsoever operating rates.
•Air Ducts
Provide detectors adapting to ISA MC96.1, Type K, in the combustion chamber or as otherwise directed, using a thermocouple acceptable for constant operation and control temperatures up to 1260 degrees C 2300 degrees F true to 0.75 percentage, of sufficient length to be added 150 mm 6 inches into the furnace. Provide the thermocouple with an adjustable flange and a high- temperature metallic alloy, closed-end, shielding tube acceptable for insertion into the furnace without assistance of the casting end. Supply half an hundred feet of 1.52 mm 16- gauge lead wire with a weatherproof braid for connecting the thermocouple to the instrument, so that the installed unit indicates gas passage temperatures and controls burner operation.
1.3.7 Operating Tools
Nitrogen Oxides (NOx): 210 ppmv, 12-hour typical as measured by EPA Reference Method 7 Hydrogen Chloride (HCL): 42 ppmv, or 97 percent decrease, 9-hour typical as measured by EPA Reference Method 26
Build monitoring ports of black steel or cast-iron tube or duct using a minimum thickness of 3.42 mm 10 gauges and provided with heat-resistant glass cap, or an angular steel frame and final plate with handle, for functioning without gloves or other protective apparatus. Stretch the tube or duct from the exterior of the casing to less than one-half the thickness of the refractory lining, and weld the framework to the casing, to extend a gas-tight refractory opening.
Biological and Pathological Waste Incinerator is defined as animal and human remains, such as organs, animal carcasses, and solid organic wastes in hospitals, laboratories, slaughterhouses, animal pounds, and similar sources. This type of waste contains around 85 percent moisture and not greater than 5 percent incombustible solids, and has a heating value as low as 2330 kJ/kg 1,000 BTU per pound as fired.
3.5SYSTEM DESCRIPTION
•Website Work
Provide a secondary chamber having an outdoor casing less than 5 mm conforming to ASTM A1011/A1011M, with insulation and refractory lining of the identical class, type, and thickness necessary for walls in the primary chamber. Permit for a minimum dwell time of 0.8 seconds for almost any state within normal operating limits.
2.5.9Insulation
Carbon Monoxide (CO): 50 ppmv, 12-hour typical as measured by a Continuous Emissions Monitoring System (CEMS)
Provide control system with proportioning control of the primary air supply and fuel supply to the secondary burner], and temperature index controls or other indicators providing a visual sign for safe loading of the incineration and excess high temperature conditions which may require control from the operator.
Perform all welding in accordance with ASME BPVC SEC IX and AWS D1.1/D1.1M by welders certified to have passed qualification tests using processes covered in AWS B2.1/B2.1M.
2.10.4Special Tools
85 2,326,000 (1,000)
The medical waste to be disposed in the incineration is a combination of plastics, paper, Type 4 waste, etc., and is obviously a broadly varying nature with a Btu content which may well exceed the usually reported price of 2,326,000 J/kg (1000 Btu per pound). Prior to developing final layout of the incineration, comprehensive waste classification should be made, amounts of glass, metal, paper, plastics, organic, rubber, fabric, wood, moisture, etc., in the waste and the changeable joule (Btu) content. The waste stream at every installation has to be analyzed and the data should be utilized for the final layout.
Provide an incineration using a good hearth in the primary combustion chamber where partial conversion and burning of the combustible organic matter occurs, and a secondary combustion chamber that consumes the combustible gases and entrained combustible particles, with gas-tight shell construction. Provide an incineration acceptable for indoor setup including totally enclosed electrical motors, and rust and moisture protection, and equipped for mechanical charging and operation. Incinerator shall be a complete package-type unit, factory fabricated and assembled operating under negative air pressure and ready for attachment of all utility connections.
2.6.1Type of Waste
D.Provide things such as a catwalk, stair, ladder, and guardrail where required.
Provide an incineration effective at burning typical medical waste including plastics, paper of different types, and a tiny portion of Type 4 (Pathological) waste.
2.6.2Ability
Furnish equipment meeting the noise criteria specified herein through gear design, acoustic insulation, use of coil silencers, or other methods provided under this contract.
D.Provide counter-weights for downhill operated doors requiring a maximum manual functioning force of 133 N 30 lbs max. Provide guillotine-type doors that lift off the seals to influence opening. Provide full-swing-type doors with an integral smaller feed doorway using a minimum rectangular clear introduction of 610 by 610 mm 24 by 24 inches or a minimum circular transparent opening of 762 mm 30 inches diameter] Include hasps or brackets for doors to allow locking. Provide tight fitting cleanout doors that allow access for total cleanout, visual inspection of the entire inside of the incineration, and prevent leakage of waste fluids.
•Mechanical-Charging Doors
3- dry standard cubic meters (dscm); 4- g (gr);
Certificates: Incinerator Operation and Maintenance Data Operating and Maintenance Instructions: Statistics Bundle.
2.10QUALITY ASSURANCE
2.10.1Asbestos Prohibition
Include wind and seismic loading in the Plan vulnerability SEISMIC PROTECTION FOR MECHANICAL EQUIPMENT
Provide two monitoring ports, 75 mm 3 inches in diameter, on the charging door for viewing the primary combustion chamber during operation.
Provide the help of the manufacturer’s representative experienced in the installation, modification, and operation of the equipment specified, who will supervise the installing, adjusting, and commissioning and compliance testing of the equipment.
1.5INSTALLATION
Provide dampers to place the atmosphere for the proper burning of these waste materials. Size ducts to minimize pressure drops, constructed of sheet steel conforming to ASTM A1011/A1011M, with all seams and relations air tight.
A.Construct that the incineration foundation using CAST-IN-PLACE CONCRETE. Stretch the foundation a minimum of 1 m 3 feet past the incineration on 3 sides and less than 2.5 m 8 ft on the side in which the ashes are eliminated. Install the incineration in accordance with manufacturer’s written directions.
Submit detail setup drawings for the incineration, foundation, stack, waste feed system, fuel burning equipment, ash removal system, flue gas cleanup system, and controllers. Include in detail drawings all gear settings and relations, complete electrical wiring, controls, and connection diagrams and indicate clearances needed for operation and maintenance.
2.10.3Welding
Asbestos and asbestos-containing products are prohibited.
2.10.2Detail Installation Drawings
Dioxin/Furans: 35 gr/109dscf (1.9 ng/dscm) toxic equivalency of two, 7, 3, 8-TCDD, 12-hour typical as measured by EPA Reference Method 23.
Provide access openings at strategic locations for cleaning, inspection, and maintenance, all being a gas tight quick-opening type. Elevate the adsorbers to allow 2130 mm 7 ft accessibility under the bottom point that would accumulate particulates. Find an access door at the lowest point to allow elimination of collected particulate; made to start with an accumulation of stuff above it.
•Structure
5
Factory paint supplies and element items with the manufacturer’s standard end. Provide a weather resistant finish on all items located away from the building.
PART 3 EXECUTIONS
1.3EXAMINATION
Introduce combustion under fire atmosphere to the key chamber under the waste material through ducts situated across the face of the hearth]. Control over fire atmosphere with automatically controlled air intake vents in the back wall, for finishing combustion of combustible materials into gases, or for reducing temperatures.
Build the key chamber using a steel casing encouraged by a steel framework, and provide with insulation and refractory. Create the casing with 5 millimeter sheet steel minimum, conforming to ASTM A1011/A1011M and fortified to withstand internal pressures without deflection or damage to refractory or other components of the incineration. Build the framework and all reinforcing members of steel conforming to ASTM A36/A36M. Provide a free-standing framework capable of supporting the weight of all components of the incineration, including doors, burners, breeching, stack relations, and appurtenant assemblies without warping or binding. Make the framework and casing of all welded construction, completed and erected before installation of the
refractory and insulation. Perform all welding in accordance with ASME BPVC SEC IX and AWS D1.1/D1.1M. Provide entry doors and parts with seals to avoid emission of smoke or entry of significant amounts of air during incineration functioning, and a key chamber without any openings that would allow leakage of waste fluids.
Install equipment and material as indicated and according to manufacturer’s written directions and NFPA 82, with combustion air supply and venting in compliance with NFPA 31 or NFPA 54 as important.
1.5.6Foundation
Provide the unit with provisions for automatic removal of the ash through the cleanout door upon finishing the burnout and cool-down cycles. Ash removal shall be as indicated for use with portable containers.
1.4PAINTING AND FINISHING
1.4.1Treatment
Build adsorber with 4.76 mm 3/16 inch stainless steel plate, ASTM A36/A36M or ASTM A283/A283M, grades B, C, or D. Space outside stiffeners as needed to provide support for the vessel skin. Seal weld all structurally welded seams. Design joints to be assembled water and air tight. Design adsorber for a gas pressure of plus or minus 635 mm 25 inch water gage, or as needed from the system operation, whichever is greater, and with almost any weapon deflection not exceeding L/240.
Find the connector at a minimum clear vertical space of 2450 mm 8 feet above the floor.
•Draft Equipment
Moisture Content (MAX)% Heating Worth J/kg
C.Provide incineration supports that allow free expansion and contraction of every portion of the incineration without placing undue strain on any area of the incineration or setting. Set anchor bolts and of adequate length to put in the incineration. When embedded in concrete, provide anchor bolts plates welded on the head and protect against damage until the gear is set up.
1.5.7Stack Service
by Weight)
Failure security. Sight the fire protector detector to detect only the burner fire for which it’s designed, with burners that are readily moved from shooting position for cleaning, inspection, adjustment, and maintenance. Find thermocouples in the primary and secondary chamber, suitable for a maximum temperature of 1260 degrees C 2300 degrees F. Provide a constant secondary burner that modulates from high to low flame, based on the temperature of the secondary space. Provide an on/off fire burner in the primary chamber.
Provide inner and outer guillotine, or swing or automatic sliding, mechanical- charging doors type, with the charging or inner door opening with functioning of the charger. Interlock the inner and outer doors to prevent simultaneous introduction during incineration operation. Insulate and line the combustion chamber door with refractory material. Build the outer doorway of the same materials as the exterior casing of the incineration. Doors shall be provided with means for manual operation.
Provide the gas inlet to every module with inner deflector plates designed to offer uniform gas supply and velocities throughout the unit.
2.3.4Product Handling and Preparation System Provide an entire method to get, store, and provide product to the spray-dry adsorbers, with the capacity of supplying sufficient merchandise for the incineration functioning at 120 percent of load. Include in the system, but do not limit to, merchandise storage silo complete with vibrating bin discharger, elastic connections, gravimetric feeders, attrition slaker, [lime] slurry and water Pumps, slaked merchandise storage tank, and agitators.
2.3.5Powdered Activated Carbon
A.Provide doors for stoking, cleanout, and charging places, with securely attached door frames. Construct doors and frames of steel conforming to ASTM A1011/A1011M. Line doors, exposed to flame or direct heat of combustion fumes, with the same type and thickness of refractory and insulation used in the combustion chamber.
Provide operating floors, stairs and access platforms for operation and maintenance, made for
Provide a key burner with an input capacity effective at keeping a minimum constant temperature in the secondary chamber of 871 degrees C (1600 degrees F), and a minimum constant temperature of 760 degrees C (1400 degrees F) at the roof near the departure of the primary chamber.
b.Provide electrically spark-ignited burners regulated by a variable set stage indicator-controller flexible from minus zero to 1371 degrees C (minus 17 to 2500 degrees F) to function within the temperature limits recommended by the manufacturer.
Provide and locate as indicated, operating and shooting tools, such as shovel or coal spade, hoe, rake, slice bar with metal grips, regularly employed for cleaning and firing incinerations, and a shooting tool rack. Provide steel rack, including hooks and other appropriate means for storing the instruments in a neat way.
Typical values are as follows or less:
Important: minimum height of the chimney should less than 15 meter measured from roof of top roof of incineration room and not less than 5 meter greater than any building in distance of 1km in incineration room, also the outlet velocity of flue gases should not less than 7 litres per minute
After getting familiar with all details of the job, verify dimensions in the field, and advise the Contracting Officer of any discrepancy before performing the work.
1.4MANUFACTURER’S SERVICES
Necessary for the engine control specified, and of sufficient size to drive the equipment at the
Provide a controller actuated refractory lined damper which modulates secondary, under fire, and over fire air, constructed of steel conforming to ASTM A1011/A1011M, less than 1.52 mm 16-gauge thick, operating without noise or flutter, and electrical engine.
2.4.3Bypass Dampers
•Construction
Construct adsorber with at least 4.76 mm 3/16 inch thick steel plate, ASTM A36/A36M or ASTM A283/A283M, grades B, C, or D. Space external stiffeners as required to provide support for the vessel skin. Seal weld all structurally welded seams. Design joints to be assembled air and water tight. Design adsorber for a gas pressure of plus or minus 635 mm 25 inch water gage, or as required by the system operation, whichever is greater, and with any panel deflection not exceeding L/240.
•Gas Flow
Provide the gas inlet to each module with internal deflector plates designed to provide uniform gas distribution and velocities through the unit.
2.3.4Product Handling and Preparation System Provide a complete system to receive, store, and supply product to the spray-dry adsorbers, with the capability of supplying sufficient product for the incineration operating at 120 percent of full load. Include in the system, but do not limit to, product storage silo complete with vibrating bin discharger, flexible connections, gravimetric feeders, attrition slaker, [lime] slurry and water Pumps, slaked product storage tank, and agitators.
2.3.5Powdered Activated Carbon
Provide powdered activated carbons (PAC) specifically made for the removal of mercury, dioxins, and furans with a high percentage of pore sizes in the 20 to 50 angstrom range, with PAC completely devolatilized.
2.3.6Pebble Quick Lime Analysis
Provide flue gas cleaning equipment capable of meeting emission requirements specified using lime
2.8.2 Burners
a.Provide LPG burners for the primary and secondary combustion chambers, with each burner as a complete assembly including fuel and control systems, and accessories.
Provide a primary burner with an input capacity capable for maintaining a minimum continuous temperature in the secondary chamber of 871 degrees C (1600 degrees F), and a minimum continuous temperature of 760 degrees C (1400 degrees F) at the roof near the exit of the primary chamber.
b.Provide electrically spark-ignited burners regulated by a variable set point indicator-controller adjustable from minus zero to 1371 degrees C (minus 17 to 2500 degrees F) to operate within the temperature limits recommended by the manufacturer.
c.Provide controllers actuated by a thermocouple or shielded bimetallic sensor, with the mounting, flame shape, and characteristics of each burner suitable for the incineration chamber in which the burner is installed. Flame impingement on the incineration wall is not permitted.
d.Provide each burner with FM APP GUIDE listed and approved flame
failure protection. Sight the flame safeguard sensor to detect only the burner flame for which it is designed, with burners which are easily moved out of firing position for inspection, cleaning, adjustment, and maintenance. Locate thermocouples in the primary and secondary chamber, suitable for a maximum temperature of 1260 degrees C 2300 degrees F. Provide a continuous secondary burner which modulates from high to low fire, based on the temperature of the secondary chamber. Provide an on/off firing burner in the primary chamber.
•Stack
Important: minimum height of the chimney should less than 15 meter measured from roof of top roof of incineration room and not less than 5 meter higher than any building in distance of 1km from incineration room, also the outlet velocity of flue gases should not less than 7 Meter per second
1Provide a sectional, circular cross section exhaust stack of the type, size, and number of sections in accordance with the requirements of the stack and refractory manufacturer to adequately support the refractory lining, permit expansion, and prevent cracking of the refractory; conforming to NFPA 211. Secure the refractory to the casing by steel anchors.
2Attach a corrosion-resistant steel spark arrestor fabricated of 1.21 mm 18-gauge, 13 mm 1/2 inch mesh wire screen to the top of the stack. Provide a corrosion-resistant steel weather cap. The
temperature of the casing shall not exceed 50 degrees C in an ambient temperature of 21 degrees C 70 degrees F. Provide adequate support for any stack installed on top of the incineration without placing any of the load on the refractory walls of the incineration.
•Breeching
Provide connectors to connect the incineration to the stack unless the stack is attached directly to the incineration, in accordance with NFPA 211.
Locate the connector at a minimum clear vertical distance of 2450 mm 8 feet above the floor.
•Draft Equipment
Provide equipment which supplies the correct amount of air to permit complete controlled combustion. Include forced draft fans, draft gauges, dampers, damper actuators, linkage, and appurtenances necessary to maintain a negative draft in primary chamber in order to provide optimum performance at all operating rates.
•Air Ducts
Introduce combustion under fire air to the primary chamber below the waste material through ducts located along the side of the hearth]. Control over fire air with automatically controlled air intake ports in the back wall, for completing combustion of combustible materials into gases, or for reducing operating temperatures.
Provide dampers to set the air for the proper burning of the waste materials. Size ducts to minimize pressure drops, constructed of sheet steel conforming to ASTM A1011/A1011M, with all seams and connections air tight.
•Fan
Provide a fan capable of delivering sufficient air for burners and not less than 150% than the required by manufacturer.
The centrifugal type with forward-curved blades, and statically and dynamically balanced fan wheels Comply with the fan standards of AMCA 99, and CID A-A-59222, centrifugal furnace fans, rated for flow rate, pressure, power, speed of rotation, and efficiency in accordance with AMCA 210. Provide induced draft fans, where required, designed for handling hot flue gas at the maximum outlet temperature of the incineration.
2.8.7 Ash Removal
Provide the unit with provisions for automatic removal of the ash through the cleanout door upon completion of the burnout and cool-down cycles. Ash removal shall be as indicated for use with portable containers.
1.4PAINTING AND FINISHING
1.4.1Treatment
Clean the inner surfaces of the outer casing of the incineration, the exterior surfaces of the outer casing, the control panel, and piping, except corrosion-resistant steel, to base metal for removal of oil and rust before primer is applied at the factory.
1.4.2Factory Painting
Factory paint equipment and component items with the manufacturer’s standard finish. Provide a weather resistant finish on all items located outside the building.
PART 3 EXECUTIONS
1.3EXAMINATION
After becoming familiar with all details of the work, verify dimensions in the field, and advise the Contracting Officer of any discrepancy before performing the work.
1.4MANUFACTURER’S SERVICES
Provide the services of the manufacturer’s representative experienced in the installation, adjustment, and operation of the equipment specified, who will supervise the installing, adjusting, and commissioning and compliance testing of the equipment.
1.5INSTALLATION
Install equipment and material as indicated and in accordance with manufacturer’s written instructions and NFPA 82, with combustion air supply and ventilation in accordance with NFPA 31 or NFPA 54 as applicable.
1.5.6Foundation
a.Construct the incineration foundation using CAST-IN-PLACE CONCRETE. Extend the foundation a minimum of 1 m 3 feet beyond the incineration on 3 sides and not less than 2.5 m 8 feet on the side where the ashes are removed. Install the incineration in accordance with manufacturer’s written instructions.
b.Make proper provision for expansion and contraction between incineration foundation and floor; pack the joint with suitable non-asbestos rope and fill with suitable compound that will not become soft at a temperature of 40 degrees C 100 degrees F.
c.Provide incineration supports which permit free expansion and contraction of each portion of the incineration without placing undue stress on any part of the incineration or setting. Set anchor bolts accurately, and of adequate length to install the incineration. When embedded in concrete, provide anchor bolts with plates welded on the head and protect against damage until the equipment is installed.
1.5.7Stack Support
NOTE: Indicate design wind force that the stack will have to withstand. Also include in structural design seismic resistance, and coordinate with subparagraph Lateral Loads under paragraph
Provide stack support in accordance with NFPA 82 and NFPA 211, as applicable. Provide vertical and lateral supports for exterior chimneys to withstand wind forces.