During operation, fuel is fed into the grate for combustion. High-temperature flue gas is reflected by the rear arch and enters the furnace. After radiant heat exchange on the radiant heating surface, it enters the convective heating surface for convective heat exchange, then flows to the waste heat boiler, then into the air preheater, and finally into the dust collector. After dust removal, the flue gas is drawn by the induced draft fan shaft and discharged into the atmosphere through the chimney.
The boiler's heating surface consists of four parts: the furnace radiant heating surface, the convective tube bundle heating surface, the waste heat boiler, and the air preheater (eco-friendly device).
Technical Parameter Table for YLW Series Coal-fired and Biomass Organic Heat Carrier Boilers
| Boiler Model Items | YLW-1400 MAII | YLW-1800 MAII | YLW-2400 M/AII | YLW-2800 M/A I | YLW-3500 M/AII | YLW-4200 MAII | YLW-4600 M/AII | YLW-6000 M/AII | YLW-7000 MAII | YLW-8200 M/AII |
| Rated thermal power | MW | 1.4 | 1.8 | 2.4 | 2.8 | 3.5 | 4.2 | 4.6 | 6.0 | 7.0 | 8.2 |
| ×10⁴kcal/h | 120 | 160 | 200 | 240 | 300 | 360 | 400 | 500 | 600 | 700 |
| Rated outlet oil temperature (°C) | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 |
| Rated operating pressure (MPa) | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 1.0 | 1.0 | 1.0 |
| Thermal efficiency (%) |
|
|
|
| >86 |
|
|
|
|
|
| System installed capacity (kW) | 55 | 63 | 76 | 85 | 105 | 125 | 155 | 170 | 193 | 150 |
| Expansion tank (m³) | 2.5 | 2.5 | 2.5 | 3.5 | 3.5 | 5.0 | 5.0 | 8.0 | 10 | 15 |
| Storage tank (m³) | 5 | 6 | 6 | 8 | 8 | 10 | 10 | 15 | 15 | 25 |
| Maximum dimensions of transported items (mm) | Length (L) | 5000 | 5600 | 6500 | 6500 | 7500 | 7400 | 8000 | 8320 | 9000 | 9760 |
| Width (W) | 2250 | 2250 | 2500 | 2550 | 2550 | 2870 | 2820 | 3330 | 3330 | 3270 |
| High (H) | 2450 | 2750 | 2800 | 3200 | 3200 | 3300 | 3350 | 3250 | 3350 | 4010 |
| Maximum transport weight (kg) | 11000 | 12700 | 13500 | 14500 | 16500 | 22500 | 29000 | 33500 | 36000 | 35000 |
| Boiler Model Items | YLW-9400 MAII | YLW-10500 MAII | YLW-12000 M/AII | YLW-14000 M/AI | YLW-16500 MAII | YLW-18000 M/AII | YLW-21000 MAII | YLW-23300 M/A II | YLW-26000 MAII | YLW-29200 M/AII |
| Rated thermal power | MW | 9.4 | 10.5 | 12 | 14 | 16.5 | 18 | 21 | 23.3 | 26 | 29.2 |
| ×10'Kcal/h | 800 | 900 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 | 2500 |
| Rated outlet oil temperature (°C) | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 |
| Rated operating pressure (MPa) | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Thermal efficiency (%) |
|
|
|
| >86 |
|
|
|
|
|
| System installed capacity (kW) | 160 | 160 | 260 | 320 | 380 | 450 | 520 | 600 | 700 | 825 |
| Expansion tank (m³) | 15 | 15 | 20 | 20 | 30 | 30 | 30 | 30 | 30 | 30 |
| Storage tank (m³) | 25 | 25 | 30 | 30 | 40 | 40 | 60 | 80 | 80 | 80 |
| Maximum dimensions of transported items (mm) | Length (L) | 9760 | 10500 | 11200 | 10500 | 11500 | 11500 | 11500 | 11500 | 11500 | 12000 |
| Width (W) | 4010 | 4010 | 4010 | 3500 | 3500 | 3500 | 3850 | 3950 | 3950 | 4200 |
| High (H) | 2450 | 2750 | 2800 | 3200 | 3200 | 3300 | 3350 | 3250 | 3350 | 4010 |
| Maximum transport weight (kg) | 24800 | 25000 | 27500 | 31000 | 33000 | 35000 | 38000 | 17500 | 19000 | 22000 |