Biomass Fired Steam Boilers

Uttamenergy’s classical proven product with more than hundreds of references and with a design perfected through the experience gained in the past 40 years. This boiler has proven its performance and reliability on fuels like bagasse, rice husk, coal and wood chips.

Uttamenergy’s classical proven product with more than hundreds of references and with a design perfected through the experience gained in the past 40 years. This boiler has proven its performance and reliability on fuels like bagasse, rice husk, coal and wood chips.

A bi-drum type steam boiler configuration ensures reliability and flexibility for varied operating pressures and ease of maintenance. Travelling grate stokers ensure efficient combustion with smooth and trouble free operation while its higher heat release rates enables compact boiler designs. The drive for grate can be an option of either hydraulic or motor driven type.

  • Capacity range : 8 – 200 tph
  • Maximum Pressure : 125 Barg
  • Maximum Temperature : 540 °C
  • Fuels : Bagasse, rice husk, wood chips, coal

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Unique Features

  • Instant response to load changes
  • Compactness of combustor and boiler
  • Fuel flexibility with both biomass and fossil based fuels
  • Minimized stack losses due to lower excess air levels
  • Ease of maintenance and operation

Palm Waste / Napier Grass Fired Boilers

Unique single pass design developed by Uttamenergy for challenging fuels like empty fruit bunch, palm fiber, wood barks and napier grass. These fuel types typically have a higher alkali content which has a sticky nature resulting in fouling of boiler heat exchangers. The combustion room is spaciously sized with a sufficient cooling area to minimize fouling potential of alkali salts in these fuels.

In-house developed Reciprocating Servo Grate (RSG) sized elaborately to complement steam boiler design. Fuel is gravity fed at one end of the grate to promote staged and efficient combustion. This silent combustion results in efficient combustion of higher moisture fuels and lesser fly ash carryover.

  • Capacity range : 8 – 80 tph
  • Maximum Pressure : 67 Barg
  • Maximum Temperature : 480 °C
  • Fuels : Palm waste, wood bark, napier grass

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Unique Features

  • Capable of handling high moisture and fibrous fuel
  • Boiler configuration suitable for fuels with fouling tendency
  • Limits fly ash carryover from combustor and reduces its fouling nuisance
  • Elaborate heat transfer surfaces to compensate fouling action
  • Automatic and effective soot blowing to increase boiler availability
  • Minimized unburnt losses due to efficient combustion
  • Ease of maintenance and operation

Vinasse Fired Incineration Boilers

Unique tail end incineration boiler design developed by Uttamenergy exclusively for firing vinasse/slop effluent generated from distillery in combination with support fuels like bagasse, wood chips, rice husk and coal. Careful designing of soot blower mechanism ensures higher availability of boilers. Travelling grate stokers are considered to offer flexibility of firing support fuels.

  • Capacity range : 8 – 100 tph
  • Maximum Pressure : 45 Barg
  • Maximum Temperature : 400 °C
  • Fuels : Vinasse, slop

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Unique Features

  • Capable to handle slop from 45 brix to 60 brix concentration.
  • Guaranteed uptime/availability of boiler up to 120 days
  • Guaranteed uptime/availability of boiler up to 220 days with special waste spray type soot blowers
  • Tail end design with elaborate heat transfer surfaces to compensate fouling action
  • Automatic and effective soot blowing to increase boiler availability

Coal Fired Fluidised Type Boilers

Coal fired fluidised type boilers are a fluidised bed type combustion boiler is the best technology to burn high ash fuels like coal and rice husk. This combustion system in combination with bi-drum type boilers, gives more flexibility in the capacity and the smooth operation of the boiler.

  • Capacity range : 6 – 200 tph
  • Maximum Pressure : 125 Barg
  • Maximum Temperature : 540 °C
  • Fuels : Coal, rice husk

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Unique Features

  • Efficient combustion of coal with fluidized bed technology
  • Instant response to load changes
  • Compactness of combustor and boiler
  • Minimized stack losses due to lower excess air levels

Bagasse Dryers

Bagasse dryers are our in-house developed innovative product through R&D efforts to dry wet bagasse by utilizing the waste flue gas energy dumped through chimney.

Flue gases from the boiler are made to pass through dryer under forced draft and with wet mill bagasse being fed at the bottom of the dryer through a rotary air lock feeder. Due to cocurrent flow wet bagasse gets carried upward along with hot flue gas at a calculated velocity based on Average Particle Retention Time (APRT). During this process, bagasse moisture evaporates and dried bagasse is subsequently separated through high efficiency cyclone separators.

This dried bagasse is continuously evacuated from the bottom of the cyclone(s) through air-lock valves for onward feeding to the boiler. Adequate automation including differential pressure monitoring are provided.

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Unique Features

  • Increase in boiler efficiency up to 77% or more.
  • Bagasse moisture reduction up to 37% or low.
  • Online monitoring system to avoid bagasse chock up.
  • Stainless steel constructed parts at critical location for longer durability
  • VFD controlled booster fan to ensure smoother operation against temperature and moisture fluctuations.