Solid-fuel Heating Technology

In solid fuel (such as coal, biomass pellets, wood) heating technology, the fan is the core component for improving combustion efficiency, emission control and system stability, directly affecting fuel utilization, pollutant emissions and equipment life. The selection should focus on fuel characteristics, environmental protection requirements and economy.

 

Ventilation and Coling Fan

  1. Combustion optimization and efficiency improvement

 

  • Air supply control: The fan delivers an appropriate amount of oxygen to the combustion chamber to ensure that the fuel and air are fully mixed and promote complete combustion (reducing CO and unburned hydrocarbon emissions).
    • Data: Reasonable air distribution can increase the combustion efficiency from 60% to 85% and reduce fuel consumption by 20%-30%.
    • Case: A biomass pellet boiler optimizes the air-fuel ratio through a variable frequency fan, and the thermal efficiency is increased from 75% to 88%.
  • Layered combustion: In a chain grate or fixed bed system, the fan supplies air in layers (such as primary air at the bottom and secondary air in the middle) to control the combustion stage (drying → pyrolysis → combustion → burnout) and reduce the carbon content of the ash.

 

  1. Emission control and environmental compliance

 

  • Low-nitrogen combustion: NOx generation is suppressed by staged air supply (reducing the oxygen concentration in the high-temperature zone), and NOx emissions are reduced from 500mg/m³ to below 200mg/m³ in combination with flue gas recirculation (FGR) technology.
  • Particle capture: The induced draft fan transports the flue gas to the bag filter or electrostatic dust removal equipment, and the PM2.5 emission is reduced from 100mg/m³ to 10mg/m³ (in line with GB 13271-2014 standard).

 

  1. System stability and safety guarantee

 

  • Anti-slagging and ash cleaning: The high-pressure fan regularly blows the ash and slag from the grate to prevent blockage (ash and slag accumulation > 50mm will reduce thermal efficiency by 30%).
  • Negative pressure control: The induced draft fan maintains a slight negative pressure in the furnace (-20~-50Pa) to prevent high-temperature flue gas from leaking or positive pressure flames.

 

  1. Waste heat recovery and energy saving

 

  • Utilization of flue gas waste heat: The induced draft fan drives the high-temperature flue gas (200-400℃) to flow through the heat exchanger to preheat the combustion air or process water (energy saving rate 10%-15%).
  • Condensate treatment: The acidic condensate (pH 3-5) produced by biomass combustion needs to be neutralized, and the corrosion-resistant fan ensures stable wet flue gas emissions.
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Recommended brand

Product recommendation

Image Brand Title Model Order Number Description Min. Order Quantity Weight Discount
SODECA HTMF-80-6T-1.5 IE3 SODECA Smoke Extract Fans HTMF-80-6T-1.5 IE3 icx-SODECA-HTMF-80-6T-1.5 IE3
SODECA HTMF-80-6T-1.5 IE3, Smoke Extract Fans, Speed:930 RPM, Installed Power:1.1 KW, Max. Air Flow:19435 m³/h, Noise:54 dB
1 181 KG Yes, (The set sales target for the product by the required date)
SODECA HTMF-71-4/8T-4 SODECA Smoke Extract Fans HTMF-71-4/8T-4 icx-SODECA-HTMF-71-4/8T-4
SODECA HTMF-71-4/8T-4, Smoke Extract Fans, Speed:1420/710 RPM, Installed Power:3.00/0.60 KW, Max. Air Flow:22685/11300 m³/h, Noise:64/49 dB
1 135 KG Yes, (The set sales target for the product by the required date)
SODECA HTMF-63-6T-0.75 SODECA Smoke Extract Fans HTMF-63-6T-0.75 icx-SODECA-HTMF-63-6T-0.75
SODECA HTMF-63-6T-0.75, Smoke Extract Fans, Speed:930 RPM, Installed Power:0.55 KW, Max. Air Flow:10449 m³/h, Noise:48 dB
1 95 KG Yes, (The set sales target for the product by the required date)
SODECA HTMF-63-4/8T-2 SODECA Smoke Extract Fans HTMF-63-4/8T-2 icx-SODECA-HTMF-63-4/8T-2
SODECA HTMF-63-4/8T-2, Smoke Extract Fans, Speed:1430/725 RPM, Installed Power:1.50/0.30 KW, Max. Air Flow:15630/7900 m³/h, Noise:58/43 dB
1 106 KG Yes, (The set sales target for the product by the required date)
SODECA HTMF-63-4/8T-1.5 SODECA Smoke Extract Fans HTMF-63-4/8T-1.5 icx-SODECA-HTMF-63-4/8T-1.5
SODECA HTMF-63-4/8T-1.5, Smoke Extract Fans, Speed:1420/695 RPM, Installed Power:1.10/0.25 KW, Max. Air Flow:13930/6800 m³/h, Noise:57/41 dB
1 94 KG Yes, (The set sales target for the product by the required date)
SODECA HTMF-56-4T-1.5 IE3 SODECA Smoke Extract Fans HTMF-56-4T-1.5 IE3 icx-SODECA-HTMF-56-4T-1.5 IE3
SODECA HTMF-56-4T-1.5 IE3, Smoke Extract Fans, Speed:1430 RPM, Installed Power:1.1 KW, Max. Air Flow:11530 m³/h, Noise:55 dB
1 79 KG Yes, (The set sales target for the product by the required date)

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ICX

ICX (Operated by APAC HVAC TECH PTE. LTD), headquartered in Singapore, is a leading integrated service provider of HVAC and industrial control equipment in the Asia-Pacific region. The company specializes in offering multi-brand product integration for global clients, including fans, industrial control devices, and electronic components, while delivering customized solutions through a team of technical experts.As of 2024, APAC HVAC TECH has achieved an annual sales volume exceeding USD 240 million, with business operations spanning 173 countries and regions, serving over 5,200 customers worldwide. The company holds a strong market presence in the fields of industrial and building energy efficiency.

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