IPDB › China Industry › Manufacturing & Processing Machinery › Ceramic Machine
Clean Energy Hood Kiln with Efficient Emission Control1
Ceramic Machine, Optimal Resource Utilization, Lower Operating Costs
Foshan Linkcon Thermal Technology Co., Ltd.
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Product Description Product Description Moving Hood KilnLinkcon Thermal Technology provides heavy-duty moving hood kilns for heavy loads (Graphite Crucibles and so on).This kiln is an excellent alternative for heavy loads placed in several stationary bases, and moving hood kiln is travelling to the required heating station or simply when it is easier to move the kiln than the load. Our Advantages Kiln Features:Pulse firing systemsThe most advanced heat recovery systems with recuperative/regenerative burners performing fuel savings 10%-50% vs cold air systemFiber lined sections using the special design to compensate the fiber shrinkage reducing the maintenance considerablyHeavy-duty refractory base designs with high resistance to thermal shockEach burner is equipped with flame monitoring and safety measures to comply with EU EN746-2 gas service standardEquipped with remoted monitoring system to check the kiln status at any timeReliable hydraulic system for hood movement TECHNICAL SPECIFICATION OF KILN Product Parameters No. OF KILNS:One TYPE OF KILN:Moving Hood Intermittent Kiln with Horizontal Afterburner and Down Draught System MAXIMUM WORKING FIRING TEMP:Max Soaking Time at Max Operating Temperature:Firing Mode:1400°C (Design Safety factor to be included) 150 Minutes (Design Safety factor to be included)Normal and Regenerative TEMPERATURE UNIFORMITY:±5°C throughout the kiln at soak (Note: Measuring area should be outside the crucible and 150mm above floor level to top of crucible)in the useful loading area only ATMOSPHERE:Oxidizing at adjustable range of 0 to 5%. FUEL: LPG, 2 staged regulator 4kg to 1 kg /CM2 ELECTRICAL SUPPLY:415V(+/-10%) Three Phase and Neutral KILN USFELU VOLUME:69.3m3 KILN USEABLE NTERNAL DIMENSIONS:6000(3 hearth x2000)*3,500*3,300mm (L*W*H) KILN USEABLE EXTERNAL DIMENSIONS:9200*5600*4800mm (To be Finalized during GA drawing Review) Lining thick ness 350 mm to be reviewed with Fibre vendor based on the Design of LTT KILN AFTER BURNER SYSTEM DIMENSIONS:8000*1600*1600mm(To be Finalized during GA drawing Review) KILN OVERALL WEIGHTApprox 60TON (Inclusive of all with Lining moisture) MAXIMUM WEIGHTOF WARE PER FIRE:VOC Flue gas burning- Modulating Control:Direct Load (SIC/ CG) : 10 MTIndirect Load or Product Load with Saggers : 24MTAfter burner about 800oC-850oCAfter burner in operation from start of cycle to 850 Deg or 900 Deg . KILN FIRING CYCLE:Indirect Firing 1260mins (CG/SiC)Direct Firing 230mins (SiC)Direct Firing 2880Min(CG)As per Program cycles program can be fed into the systemVery slow heating rate at the rate 40 deg/Hr can be achievedNo sudden rise of temp inside kiln during slow heating cycles KILN LINING: Kiln lining - 350MM and after burner is 150~200MM. Max allowed skin temperature is RT + 30 Deg KILN HEARTH:2 Hearths with Flue Port and Exhaust passage Refractory Hearths Material specifications T/C IN KILN: 8 set -control / over temp. Duplex type . Specifications of shields and 'R' type thermocouples T/C IN A/B:1 - control /1- over temp Duplex type, Specifications of "K" Typ T/C IN REGENERATIVE BURNER EXHAUST8 monitor, specification K type Zone wise control:Independent or Multiple Control Zones Technology KILN BURNERS:16 - 420kw rated Epsilon high velocity Regenerative Burners, complete with refractory flame brick, spark ignition and uv sensorsDetail drawing to be shared before procurement. ENERGY SAVING of 30-35% SAVING can be achieved through Regenerative burners(Compared during Regenerative Mode only) Products SinteringLTT AssurE correct Product Sintering For Direct & Indirect Firing Cycles as agreed AFTERBURNERS:6 -- Epsilon hot air burners for modulating control with sic tubes, spark ignition and uv sensors. HEATING SYSTEM:Pulse Fired system, and flameless flame over 850oC8 Zone control PROGRAMME/CONTROL:LTT E-smart System: Remote control available, Alarm messenger to appointed person.Cabinet comply to IP65PLC based control system comprising of:-Kiln Mounted control panel containing a colour touch screen (15" High Brightness) and integrated computer including SCADA system and kiln over temperature controller, the touch screen will act as the main user interface.The screen allows programming of kilns firing cycles and provides real time and historic time reading, stamped plant alarms.PLC to be Allan Bradley. Emergency switches to be provided in all Electrical PanelsAll displays and control systems should be in English Access ControlProgrammer Controllers with password Protection ,All Instrumentation Where Ever Applicable Kiln Pressure Control system AutoTwo pressure transducers to monitor and record the pressure in the kiln chamber. Electrical and LPG connections to Hood:LPG Flexible Hose connection as Kiln hood is moving. Electrical Cables with Flexible cable tray to avoid damages to cabling and short circuit LPG hose pipe and electrical cable tray must be separate Regenerative mode:Regenerative, High Velocity, Pulsed Firing which is run until the volatile gases finish coming out to avoid the regen box damage caused by the maybe partial overheat, now the system is most efficient compared with other system . when the kiln run at 1400oC the benefit from our flameless flame can be selected above 850oC,the products will be not affected by high regenerative burners is that combustion air will be preheated up to 1000oC, flameless flame can be selected above 850oC,the products will be not affected by high temperature flame and very good temperature distribution.Flexibility for direct & indirect-For Better Energy saving. Heat recuperator for Kiln Burners in Normal Firing mode. --Only for After Burners. SAFETY INTERLOCKS:The gas supply to the kiln is automatically shut off in accordance with EN746-2:-1. High gas pressure.2. Low gas pressure.3. Low air pressure.4. Over temperature setting is exceeded.5. Loss of electrical power to kiln.6. Over kiln pressure 7. Door Unlock8. Kiln Not in hearth position9. Regen box over temperature Main Gas Train Safety:Pressure operated vent valve Sinon)Pressure operated vent valve (Sinon)2 NOS-Solenoid safety shut off valve (Sinon)1 Valve Passing System/Gas leak detection system After Gas Burner systemPressure operated vent valve (Sinon)Pressure operated vent valve (Sinon)2 NOS-Solenoid safety shut off valve (Sinon) Each Burner with 2 solenoid valves for LPG16 sets of Solenoid valves and flow manual valves Joint SafetyGas Piping Joints with Standard Copper Jumpers STANDARD TO BE FOLLOWEDManufacture the kiln as European standards CONSTRUCTION: Kiln Structure:Fabricated steel frame externally clad.Kiln to be manufactured in sections for ease of delivery to site.Kiln Plate should be 304 ss. Kiln Sheets material:SS 304,Kiln Plate should be 304 ss. Hood Type:Moving Hood with 2 side Doors Kiln Hood Lifting and Lowering:Hydraulic Driven Kiln Hood Movement:Hydraulic Driven Kiln Both Sides DoorsOpen and Locking: Manual type for swing door to close and open automatic lock by safety unit Kiln Side Cooling PANELSMade by galvanize sheet Kiln top access safetyStandard height railing and access ladder to be provided Rails & ChannelsStd.Rail with C channels Hydraulic Power Pack positionProvided on side of the hood DAMPERS:The kiln is of a down draught design and incorporates 2- Slide damper for each flue path of both hearth to open/close automatically. Damper Guide and Door - 310SS Air Fluel RatioAuto adjusted and can be remotely controlled,LTT Confirm Auto Air/Fuel ratio Adjustment FANS: Noise Level less than 85db tested (1 meter away) . All motors by Siemens, comply to IE3Including: One kiln combustion fan mounted on the kiln roof One afterburner combustion fan mounted next to the afterburnerOne exhaust fan To reduce further noise levels of blowers Silencer to be applied INVERTERSABB Control system comprising of a Rittal control panel containing instrumentation control, and kiln over-temperature controller linked to a computer with Scada software acting as the man/machine interface wired to EU colour regulations. Panel A/C included. OXYGEN LEVEL Measured by Oxygen Analyzer Yokogawa / NOVATECH, monitor and send signal back PLC (designed to avoid damage by the flue gases below 850oC, Note: the reading before the resin finish coming out should be not used for proper reading) HEAT EXCHANGEROne heat exchanger will be mounted after the afterburner for preheating the afterburners CHIMNEY18m high from floor level. Upper parts 6mm thick roll plate, bottom 8mm thick roll plate. COOLINGInject from 16 burners and exhaust from the path under the floor . Ref Volume 10800m3/Hr-14000m3/hr Gas Meter for Kiln:(China Brand Xun'er) SpecificationsMass flow/range--must count in minimum consumption also. & LPG Consumption/cycle theoretical for Direct & Indirect firings to be confirmed during design phase Cold to Cold Cycle time:Cooling time to be below 8 hours to get to 400degree from max temperatureReconfirm heating +cooling time & Both end Provision for Cooling system railing/channels. During design phase Exhaust Connections-RegenExhaust Connections for Regen system will be atomized Drawings and documentationAll Drawings of Civil/Electrical/Hydraulics/Mechanical/fabrication/Ladder diagram in English with Commented Programme/Soft Copies also etcTwo sets of kiln instruction manual\maintenance manuals Guaranteefor a period of 12 months from date of first production firing,Burner refractory working life will be 3.5 years for indirect firing Emmission Level: match Local Govt. Rules of Pollution Control Board System Confirmity/StandardsLTT To Confirm --Like NFPA 86,EN 60204-1{SAFETY OF MACHINERY.ELECTRICAL EQUIPMENT OF MACHINES GENERAL REQUIREMENTS,GB/T116618-1996 TrainingLTT provide necessity training Ceramic Industry AtmosphereLTT To Confirm and Consider Dust,Indian Atmosphere Dry & Hot. All parts of Kiln system make, easy availability in indian marketInternational brands should be first option.(electrical and general parts if necessary) Equipment Running/Maintaining costRunning cost will be gas/ electricity consumption depends on firing Maintenance cost will be regularly inspecting burners balls/bricks and kiln seals with floor Safety related during supply and installation and commissioning.Method statement /JSA Will be prepared on site and accordingly will be followed. All MCIL EHS Requirements LTT To Fulfill. MACHINE GUARDINGAll Moving PARTS must have 360 Deg. Guarding Compensators & Vibration dampers /padswhere if necessary.
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