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Ashoka Machine Tools Corporation

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Boilers

Boilers works as steam generation units and finds use in industrial applications especially in areas where steam is required for process handling. The industry areas includes pulp, paper, sugar plants, rice mills, chemical, food industries and others. The boilers are based on factors such as exit pressure of steam, capacity of steam generation, type of fuel, type of construction, type of feeding of fuel and others.

AFBC Boilers

Features : Applications :
These are suitable for processes requiring steam including :

AFBC Boilers

AFBC Boilers are based on latest Atmospheric Fluidized Bed Combustion (AFBC) technology and come with bubbling bed type configuration. Backed by extensive R&D so as to ensure optimum utilization of existing energy sources, we ensure the solutions offered by us are user-friendly as well as suitable for firing varied low calorific value fuels.

Features :
  • Comes supported by specially developed fuel feeders & feeding system for handling even fuels with superior moisture content
  • Comes with innovative protection feature for handling bed swept surfaces
  • Innovative oil-fired start-up system that does not require manual intervention and provides for trouble-free unit start-up
  • Allows for simple operation support
  • Delivers optimum versatility in applications
  • Can be made available in Bi-drum/Single Drum, Natural circulation top/bottom supported or Water Tube design options
  • Comes with better evaporator design for delivering better operation reliability
  • Made available with multi-fuel firing operation support
  • Features under bed/over bed fuel feed system support
  • Can also be offered with bottom hopper design for specific applications
  • Delivers optimized combustion support with staged secondary air system
Applications :
  • Highly suitable for saturated & super heater steam required captive and cogeneration power plants

Bi-Drum Boilers

Bi-Drum Boilers find application in generating high steam-pressure needed for cogeneration/ incidental power generation. These are specially demanded in saturated steam applications demanding uninterrupted operation on highly choking fuels. The quality construction of these boilers also makes these deliver continuous operation support throughout the year. Further, as these have small water content, these rapidly respond to changes in heat inputs and loads.

Features :
  • In these boilers, water is circulated inside tubes with surrounding heat source
  • Energy generated from heat source can be extracted as radiant/convective & conduction form
  • Features furnace/radiant section which functions as open area accommodating flames
  • Walls of furnace section coming lined with finned tubes known as membrane panels that come designed for absorbing radiant heat from flame
  • Two drums come connected through large number of convective heat transfer tubes
  • Can be delivered in over bed & under bed options
  • Delivers better fluidization as well as more residence time
  • Helps in achieving superior combustion efficiency
  • Boilers available with larger capacities as well as high pressures find usage for cogeneration of process steam & power using suitable turbine support
Applications :
  • These are used in generating high steam-pressure needed for cogeneration/ incidental power generation.

Travelling Grate Boilers

Travelling Grate Boilers is operated through burning of mustered husk and paddy straw and provides for superior combustion efficiency. Providing for high operation reliability, these also ensure low down time as well as comparatively less fouling and sagging possibilities.

Features :
  • System designed to deliver continuous discharge of ash
  • Can be made available with bi-drum/single drum options with natural circulation support
  • Features top supported design
  • Features tall furnace for achieving staged/complete combustion
  • Allows for optimized combustion using staged secondary air system
  • Features 2 stage/3 stage super heater support with provision of inter-stage spray attemperator
  • Allows achieving even fuel distribution on entire grate
  • Comes with modulating cyclo motor for spreader dampers
  • Features presence of grate driven using mechanical/ hydraulic drive
Applications :
  • Process & Power applications for generating high steam-pressure

Dumping Grate Boilers

Dumping Grate Boilers comprise generously sized grate and come with soot blower support for achieving on load cleaning of heating surfaces. Coming with secondary air distribution system, these are pneumatically operated sectionalized dumping grate with two stage superheaters as well as single stage attemperator that allows in achieving accurate steam temperature control.

Features :
  • Process & Power applications for generating high steam-pressure
  • Comes with generously sized grate
  • Features grit re-firing system as well as soot blowers for achieving optimum on load cleaning of heating surfaces
  • Comes with secondary air distribution system with environment friendly operations as well as electrostatic precipitator type pollution control that limits particulate emission up to 30 mg/nm3
  • Also features on-line bagasse storage silo for achieving stable boiler operations
  • Features single/three drum feeder option for bagasse feeding as well as space tube/membrane panel furnace options
  • Comes with pneumatically operated sectionalized dumping grate
Applications :
  • Reduce radiation losses and uses maximum heat extracted from furnace








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