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+88 02 5508 6766Product Features
The YLW series biomass-fired thermal oil boiler is an assembled chain grate (reciprocating grates) boiler with forced circulation combustion. The boiler consists of an upper boiler body and lower grate, which can be assembled and installed on-site. The boiler structure is compact, small footprint, high degree of assembly, a short installation period, and saves costs.
The radiant heating surface of the boiler body adopts closer double coils of square tube and a single furnace, and serpentine convection heat exchange tubes are installed at the back of boiler.
A unique anti-ash accumulation structure is used to lessen ash collection and make ash removal easier in accordance with the characteristics of fuels. In order to decrease ash buildup in the boiler and increase boiler efficiency, the design of higher and lower staggered rows, enlarging their space, soot blowing and cleaning devices are applied to the section of convection heat exchange of boiler.
A unique structure of the combustion chamber. Compared with the traditional coal-fired boiler， it has a larger furnace combustion space to adapt to the high volatility of biomass fuel and coal. The combustion chamber above the grate is raised and the secondary air is arranged, the grate has several independently controlled air intakes. The great speed is infinitely variable.
The grate is made of high-temperature-resistant materials and reasonable air-cooling methods, which makes the grate reliable and long-lasting.
The feeding device has independent intellectual property rights and adopts the material locking mechanism.
The radiant heat exchange surface of the furnace chamber and the convective heat exchange surface adopt special anti-wear structure.
The boiler adopts high-quality insulation materials and special construction techniques with good insulation effect.
100% real-time online X-ray inspection, automatic gas shielding welding process and equipment are used for welding of boiler heating surface and tube butt-joint. Welding quality is stable and reliable.
Performance Advantages
High Efficiency and Energy-saving
Furnace radiant heat exchange section adopts structure of closer double coils of tube and S-type multi-return heat exchange system.
According to the user's waste heat we use configuration of air preheater, waste heat steam boiler, hot water economizer for waste heat recovery, which reduce exhaust gas temperature and increases boiler efficiency, consume less fuel and get energy-saving.
The boiler adopts unique design of combustion chamber, grate and combustion technology, uses high-quality insulation materials and special construction technology to obtain less heat loss, low exhaust temperature and high boiler thermal efficiency.
High efficiency and energy saving of the boiler benefit from sufficient and reasonable arrangement of all heating surfaces, which makes the boiler generate and warm up quickly.
Safe and Reliable
The furnace radiation heating surface is covered with dense rows of coils; the heating surface layout efficiently reduces the tube surface heat load, and the use of heat transfer oil medium is safer.
The heat transfer oil generally follows a low (import) to high (export) pattern, with a fair medium flow. The medium gas produced during operation is difficult to hold in the furnace and is readily released from the system.
Feeding device adopts locking mechanism of material and using secondary air can effectively prevent flame backfire and burned-out hopper.
The boiler operation adopts remote and local monitoring. Complete automatic control system and monitoring instruments ensure its operation safe, reliable and easy. Establishing an IoT platform of industrial boilers which combining industrial automation control technology, Internet technology, computer software, and artificial intelligence technology can enable us remote human-computer interaction and data sharing for control of our boilers.
Green and Environmental Protection
We can select configurations cyclone separators, bag filters, DST (desulfurization towers), ESP and other EP equipment in accordance with local environmental protection regulations to make vastly fume emission to meet ultra-clean emission standards of Bangladesh.
Fuel Selection
Jute straw, rice husk, coconut shell, wood chips, branches and bituminous coal.
Technical Parameters and Installation Diagrams
Model | YLW- 1900SCⅡ | YLW- 2300SCⅡ | YLW- 2900SCⅡ | YLW- 3500SCⅡ | YLW- 4100SC Ⅱ | YLW- 4700SCⅡ | YLW- 5900SCⅡ | YLW- 7000SCⅡ | YLW- 8200SCⅡ |
Heating Capacity x 10⁴ (kCal/h) | 160 | 200 | 250 | 300 | 350 | 400 | 500 | 600 | 700 |
Predetermined Pressure (MPa) | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
Maximum Working Temperature (℃) | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 |
Medium Circulation Volume (m³/h) | 160 | 160 | 200 | 200 | 260 | 260 | 300 | 340 | 400 |
Main Pipeline Diameter (DN) | 150 | 150 | 200 | 200 | 200 | 200 | 250 | 250 | 250 |
Installed Capacity (kW) | 84 | 84 | 105 | 105 | 107 | 148 | 180 | 202 | 222 |
System Heating Efficiency (%) | ≥82 | ≥82 | ≥82 | ≥82 | ≥82 | ≥83 | ≥83 | ≥83 | ≥87 |
Applicable Fuel | Class II Biomass Briquette Fuel (Forestry Type), Overall Size Φ10*50, Calorific Value: 3800-4000 Kcal/kg | ||||||||
Model | YLW- 9400SCⅡ | YLW- 10500SCⅡ | YLW- 12000SCⅡ | YLW- 14000SCⅡ | YLW- 16300SCⅡ | YLW- 19000SCⅡ | YLW- 21000SCⅡ | YLW- 23500SCⅡ | YLW- 29000SCⅡ |
Heating Capacity x 10⁴ (kCal/h) | 800 | 900 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2500 |
Predetermined Pressure (MPa) | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
Maximum Working Temperature (℃) | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 |
Medium Circulation Volume (m³/h) | 520 | 600 | 600 | 680 | 800 | 1000 | 1000 | 1000 | 1600 |
Main Pipeline Diameter (DN) | 300 | 300 | 2-200/300 | 2-250/350 | 2-300/350 | 2-300/400 | 2-300/400 | 4-200/400 | 4-300/500 |
Installed Capacity (kW) | 280 | 325 | 347 | 387 | 500 | 617 | 672 | 683 | 793 |
System Heating Efficiency (%) | ≥87 | ≥87 | ≥87 | ≥87 | ≥87 | ≥87 | ≥87 | ≥87 | ≥87 |
Applicable Fuel | Class II Biomass Briquette Fuel (Forestry Type), Overall Size Φ10*50, Calorific Value: 3800-4000 Kcal/kg | ||||||||
