STEP GRATE BURNER

BU SERIES

Calore offers a complete biomass burner package, which consists of a step grate burner, complete with combustion chamber, automatic fuel feeding, automatic ignition, and automatic ash extraction. This advanced burner package can be installed to work with an existing water boiler or air heat exchanger as a retrofit biomass solution. Alternatively, a new heat exchanger can be specially manufactured for your requirements by one of our partners.

The BU Series from Calore is available with a full set of auxiliary technologies that make it a state-of-the-art system, able to burn wood pellets, wood chips (up to G50 Spec) or any other suitable biomass residues like nutshells or fruit pips (we can assist in assessing the suitability of any biomass as fuel source).

This burner has been designed and engineered by PelleTech®, a leading European biomass company. Our standard model range includes units from 200kW to 2.2MW. Other ratings are available on request.

FEATURES

  1. The cast iron moving grate system with variable speed allows the efficient combustion of biomass with a moisture content of up to 35%.
  2. Primary combustion air supply via blower fan.
  3. Air inlets for secondary combustion air supply. Secondary combustion air control ensures optimal ignition and combustion efficiency.
  4. Reinforced auger for reliable fuel supply.
  5. Automated fuel supply system with an integrated safety device that maintains a continuous seal between the fuel line and the combustion chamber for protection against back burn.
  6. Reliable and energy-efficient auger motor.
  7. Automatic ash extraction system that removes ash from the combustion chamber and deposits it in an external ash container.
  8. Combustion chamber coated with thick refractory concrete, protecting the burner walls against chemical degradation and thermal stress. The refractory lining also allows high exhaust gas temperatures to be reached whilst maintaining optimal combustion efficiency.
  9. Hot air blower for automatic rapid ignition of fuel.

SPECIFICATIONS

Thermal power: 200 kW

Flue gas flow rate: 570 kg/hour

Flue gas temperature: 820 °C

L1 Dimension: 1,380 mm

L2 Dimension: 896 mm

L Dimension: 2,276 mm

H1 Dimension: 1,073 mm

H2 Dimension: 1,235 mm

W Dimension: 996 mm

D Dimension: ∅ 340 mm

Thermal power: 300 kW

Flue gas flow rate: 860 kg/hour

Flue gas temperature: 820 °C

L1 Dimension: 1,572 mm

L2 Dimension: 896 mm

L Dimension: 2,468 mm

H1 Dimension: 1,113 mm

H2 Dimension: 1,335 mm

W Dimension: 1,086 mm

D Dimension: ∅ 340 mm

Thermal power: 500 kW

Flue gas flow rate: 1,430 kg/hour

Flue gas temperature: 820 °C

L1 Dimension: 1,878 mm

L2 Dimension: 896 mm

L Dimension: 2,774 mm

H1 Dimension: 1,160 mm

H2 Dimension: 1,400 mm

W Dimension: 1,175 mm

D Dimension: ∅ 340 mm

Thermal power: 700 kW

Flue gas flow rate: 2,000 kg/hour

Flue gas temperature: 820 °C

L1 Dimension: 2,230 mm

L2 Dimension: 1,660 mm

L Dimension: 4,000 mm

H1 Dimension: 910 mm

H2 Dimension: 1,760 mm

W Dimension: 1,150 mm

D Dimension: ∅ 580 mm

Weight: 3,500 kg

Thermal power: 950 kW

Flue gas flow rate: 2,730kg/hour

Flue gas temperature: 820 °C

L1 Dimension: 2,575 mm

L2 Dimension: 1,660 mm

L Dimension: 4,235 mm

H1 Dimension: 910 mm

H2 Dimension: 1,860 mm

W Dimension: 1,365 mm

D Dimension: ∅ 640 mm

Weight: 4,200 kg

Thermal power: 1,150 kW

Flue gas flow rate: 3,300 kg/hour

Flue gas temperature: 820 °C

L1 Dimension: 2,690 mm

L2 Dimension: 1,770 mm

L Dimension: 4,460 mm

H1 Dimension: 1,000 mm

H2 Dimension: 1,980 mm

W Dimension: 1,450 mm

D Dimension: ∅ 780 mm

Weight: 5,000 kg

Thermal power: 1,750 kW

Flue gas flow rate: 5,040 kg/hour

Flue gas temperature: 820 °C

L1 Dimension: 3,100 mm

L2 Dimension: 2,000 mm

L Dimension: 5,100 mm

H1 Dimension: 1,300 mm

H2 Dimension: 2,225 mm

W Dimension: 1,640 mm

D Dimension: ∅ 880 mm

Weight: 7,000 kg

Thermal power: 2,200 kW

Flue gas flow rate: 6,330 kg/hour

Flue gas temperature: 820 °C

L1 Dimension: 3,950 mm

L2 Dimension: 2,000 mm

L Dimension: 6,150 mm

H1 Dimension: 1,300 mm

H2 Dimension: 2,225 mm

W Dimension: 1,640 mm

D Dimension: ∅ 980 mm

Weight: 8,000 kg

LOW ENERGY COST
NEAR-ZERO CARBON TAX
LONG-TERM SECURITY OF SUPPLY
ENVIRONMENTALLY FRIENDLY
GRID-INDEPENDENT ENERGY