Fixed Hearth Mobile furnace

Latest, Strong, Sturdy, PLC/PC Controlled Heating Quenching Technology by Dhanaprakash MN Steel Hardening, SS Solution treatment, Forging, Quenching, Tempering & Normalising. Also available for PWHT (Post Weld Heat Treatment) (N+Q+T & Q+T)
Applications
Annealing
Normalising
Hardening
Solution Treatment Heating
Forge Heating
Tempering
Aluminium Solutionising
Stress Relieving
Ductile Iron Full Annealing
ADI (Austempered Ductile Iron).
Auto cycle control
Ramp, Soak, Cool .... 8 Steps Profile
10, 20 Profile Memory
Multi Input Multi Output (MIMO)
PID Controlling Action.
PLC Based programmable controller.
One burner, one thermocouple forms one pair as zone, thus multi zone control
Digital display for time temperature graph online with USB pen drive for data storage, Wired LAN PC connectivity for real time graph printing
Complete Report generation by data logging & Processing (SCADA).
Firing
High Velocity Short Flame Burner.
Direct On/Off pulse firing effect.
Smokeless perfect combustion.
Uniformity
Calibrated to API, AMS, CQ9, STM, ASME, NORSOK
National Traceability (NABL)
The furnaces are calibrated for uniformity as per API 6A Standard (The Temperature Difference Between Highest & Lowest Points at Stabilised Conditions should not be more than 13ºC.)
Mechanization
Trolley - movement by geared motor with brake.
Door - movement by geared motor with brake, counter weighed,
Door Lock Unlock - innovative, pneumatically operated instant latching unlatching for perfect sealing.
Construction
Strong rigid construction.
Heat resistant grade CI castings at door and frame, bogie and furnace interface eliminates warpage.
Railway rails for load bearing under temperature.
Triple sealing minimising heat losses.
Insulation
High temperature high density ceramic fibre Monolithic Anchored lining.
Self-supporting Monolithic Anchored Extended door lining.
Recuperator
All fuel fired furnaces are equipped with Recuperator to recover the heat from flue gases by preheating combustion air. By thumb rule a rise of 1500 C in combustion air 7.5% heat is recovered.
PLC control
Large furnaces handle high value materials; it is essential to install PLC for operation to avoid manual errors.
PLC checks each & every operation prior to loading of materials called booting to ensure air/gas/power etc. are within the specifications & all the sensors are in working condition
PLC monitors each & every operation during auto cycle for supply conditions, flue temperatures burner operations any deviation is automatically notified audio visually & through SCADA.
PLC keeps event history for the record.
Control Panel
Aesthetically powder coated control panel.
Electrical switch gears for drives, burners.
Status indication and control.
Burner sequence controller and flame failure device.
Programmable start-up, burner, temperature controlling system.

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