Heat Treatment Furnaces

Oil/Gas Fired Auto-Cycle Controlled Bogie

Hearth Heat Treatment Furnace

Applications :

• Annealing

• Normalising

• Hardening

• Solution Treatment Heating

• Forge Heating

• Tempering 

• Aluminum Solutionising 

• Stress Relieving

• Ductile Iron Full Annealing.

Distinct Features :

Auto cycle control

• Ramp, Soak, Cool ..... 8 Steps Profile

• 20 Profile Memory

• Multi Input  Multi Output (MIMO)

• PID Controlling Action.

• Micro Processor Based Multi Point Temperature Recording System.

Firing

• High Velocity Short Flame Burner

• Direct On/Off  pulse firing effect.

• Smokeless perfect combustion

Uniformity

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 Unlocking - innovative motorised door unlocking system.

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.

• Double sealing minimising heat losses.

Insulation :

• High temperature high density ceramic fibre modular lining.

• Self supporting U-fold door lining.

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 startup, burner, temperature controlling system.

Calibrations :

• Thermal survey as per API 6A Standard.

• All measuring instruments calibrated to national traceability.

|Top|

Salt Bath Furnace

• Fully Automatic Smokeless Burner.

• Ceramic Fibre Lining- Quick Heating.

• Better Pot Life.

• Accurate Temperature and Controlled by Burner on/off.

• Lined Vent or Recuperator Reduces Flue Gas Loss.

• Substantial Operating Cost Saving.

Applications

• Neutral Salt Bath Hardening.

• Carborising Salt Bath Hardening.

• Mar Quenching Operation.

• Aus Tempering Operation.

• Salt Bath With Heating And Cooling Available.

|Top|

Gas Carburising Furnace

• Fully Automatic Smokeless Burner.

• Ceramic Fibre Lining- Quick Heating.

• Better Pot Life.

• Accurate Temperature and Controlled by Burner on/off.

• Recuperator Reduces Flue Gas Loss.

• Substantial Operating Cost Saving.

Applications

• Carborising Hardening .

• Aus Tempering Operation.

• Controlled Atmosphere Heat Treatment

|Top|

Wire Annealing Furnaces

• Pot SS304/310.

• Ceramic Fiber Lining.

• High Velocity Short Flame Burner.

• Recuperated Vent.

• Uniform Heating.

• Lowest Cost Of Annealing.

|Top|

Enamelling Furnaces

Award Winning Bangle Baking Furnace SDC - TERI Award

Non polluting continuous natural gas fired bangle baking furnace installed at Firozabad near Agra under TTZ (Taj Mahal Trapizm Zone.)

Enamel Baking Furnaces :

• Indirectly fired radiant recuperative burners for enamel baking furnaces for cooking wares .

• Directly fired smokeless heating systems. 

• 40% Cost Saving.

Tunnel Kilns :

• Ceramic glazed tile firing furnace retrofications.

•  Low pressure fully automatic burners replaces high  pressure system, for accurate temperature control, inducing natural draft.

• 10 - 15% Oil saving.

• 50% Power saving.

• Coal fired producer gas based heating system for 40 -50% Fuel Cost Saving.

Glass Tank & Sodium Silicate Furnace

• Furnace oil, Natural gas, Producer gas fired, Tank furnaces with recuperators for melting of glass and sodium silicates.

|Top|

Graphitising Furnaces

Writing pencil industry, Leads are made,

• From extruded graphite materials which is heated in absence of air.

• Continuous oil fired furnace offers excellent

  • Quality Graphitising.

• Pusher type closed loop continuous furnace.

• High Velocity short flame burners.

• Uniformity and required temperature profile by using micro-processor based combustion systems.

|Top|

A Unique Innovation By Dhanaprakash

• Electrical to oil/gas fired retrofication.

Concept :

1 KWh
= 860 KCal 
= 0.12 liters of oil 
= 0.1 Kg of gas.

• Savings Rs 2 per KWH

• Uniformity as per API standard 6 A.

• 100 % smokelessness guaranteed.

• Conversion payback less than 6 months.

• More than 35 heat treatment furnaces and 75 other equipments converted.

• Any electrical resistance heating furnace/oven is converted to oil/gas fired combustion based system.

|Top|

Back to Main Product Page