The SZL series quick-assembly water-tube boiler is a double-drum water-tube chain grate boiler that burns medium-quality bituminous coal and biomass.
SZL Series Coal-fired (Biomass) Steam (Hot Water) Boilers
The SZL series quick-assembly water-tube boiler is a double-drum water-tube chain grate boiler that burns medium-quality bituminous coal and biomass.
PRODUCT DETAILS
The boiler body consists of two longitudinally arranged drums along the boiler's centerline. The front of the upper drum and the water-cooled walls on both sides form the radiant heating surface of the furnace, while the rear of the upper drum and the lower drum form a convective heating surface through tube bundles. The combustion equipment uses a lightweight chain grate: shipped as a complete quick-assembly unit. Electrical control enables stepless speed regulation of the grate, alarms for extreme parameters, and interlocking protection.
Features of this boiler: compact structure; easy installation and low infrastructure investment; mechanized feeding and ash removal; good water circulation characteristics; rapid temperature and pressure rise during startup; sufficient output and high efficiency. It is a popular heating equipment for steam production in small and medium-sized industrial and mining enterprises and for residential heating.
Technical Parameter Table of SZL Series Coal-fired (Biomass) Steam Boilers
| Boiler Model project | SZL4-1.25/ 1.6/2.45- MAII | SZL6-1.25/ 1.6/2.45- MAII | SZL8-1.25/ 1.6/2.45- MAIII | SZL10-1.25/ 1.6/2.45- MAII | SZL12-1.25/ 1.6/2.45- MAIII | SZL15-1.25/ 1.6/2.45- MAII | SZL20-1.25/ 1.6/2.45- MAIII | SZL25-1.25/ 1.6/2.45- MAⅡ | |
| Rated evaporation capacity (t/h) Rated working pressure (MPa) Saturated steam temperature (°C) | 4 | 6 | 8 | 10 | 12 | 15 | 20 | 25 | |
| 1.25/1.6/2.45 194/203/225 | |||||||||
| Feedwater temperature (°C) Boiler thermal efficiency (%) | 20 | 20 | 60 | 60 | 20 | 105 | 20 | 105 | |
| >86 | |||||||||
| Heated area (m²) | Main unit (m²) Energy saver (m²) | 99.68 69.76 | 155.5 104.6 | 181.63 183.1 | 233.6 209.3 | 298 209.3 | 316.7295 | 456 212.4 | 625.3 267.8 |
| Applicable fuel: Class II bituminous coal biomass | |||||||||
| Maximum transport dimensions L×W×H (m) | 7.5 × 2.8 × 3.5 | 6.8 × 3.2 × 3.5 | 6.9 × 3.1 × 3.5 | 7.9 × 3.4 × 3.5 | 8.1 × 3.1 × 3.5 | 9.3 × 3.3 × 3.5 | 11.5 × 3.3 × 3.5 | 11.5 × 3.3 × 3.5 | |
Technical Parameter Table of SZL Series Coal-fired (Biomass) Hot Water Boilers
| Boiler Modelproject | SZL2.8-0.7 95/70- MA I | SZL4.2-1.0/ 115/70- MAII | SZL5.6-1.0/ 115/70-MA II | SZL7.0-1.0/ 115/70- MA II | SZL8.4-1.0/ 115/70- MAI | SZL10.5-1.0/ 115/70- MAII | SZL14-1.25/ 130/70- MAI | |
| Rated thermal power (MW) Rated operating pressure (MPa) Saturated steam temperature (°C) | 2.8 0.7 95 | 4.2 1.0 115 | 5.6 1.0 115 | 7.0 1.0 115 | 8.4 1.0 115 | 10.5 1.0 115 | 14 1.25 115 | |
| Return water temperature (°C)Boiler thermal efficiency (%) | 70 | |||||||
| >86 | ||||||||
| Heated area (m²) | Body (m²) | 146.8 | 155.5 | 196.7 | 300 | 279 | 322 | 415.8 |
| Energy saver (m²) Fuel | / | 104.6 | 157 | 174.4 Class II bituminous coal | 210 Matter | 218 | 413 | |
| fuel | Consumption (kg/h) | 610 | 910 | 1220 | 1490 | 1790 | 2180 | 2950 |
| Maximum transport size (m)Maximum transport weight (t) | 7.1×2.5 ×3.5 30 | 6.3×2.7 6.9×3.1 ×3.5 ×3.5 43 54 | 7.9 × 3.1 × 3.5 46-29 | 8.1×3.1 ×3.5 48-30 | 9.3 × 3.3 × 3.5 49-31 | 11.5×3.3 ×3.5 49-37 | ||
Technical Parameter Table of SZL Series Assembled Coal-fired (Biomass) Superheated Steam Boiler
| Steel Furnace Design Numberproject | SZL10-1.6/ 350-M/AII | SZL10-2.5/ 400-M/A Ⅱ | SZL15-1.6/ 350-M/A Ⅱ | SZL15-2.5/ 400-M/A Ⅱ | SZL20-1.6/ 350-M/A Ⅱ | SZL20-2.5/400-M/A Ⅱ | SZL25-2.5/ 400-M/AII |
| Rated evaporation capacity (t/h) | 10 | 10 | 15 | 15 | 20 | 20 | 25 |
| Rated steam pressure (MPa) | 1.6 | 2.5 | 1.6 | 2.5 | 1.6 | 2.5 | 2.5 |
| Superheated steam temperature (°C) | 350 | 400 | 350 | 400 | 350 | 400 | 400 |
| Combustion method | Chain grate | ||||||
| Identifying thermal efficiency (%) | >86 | ||||||
| Effective grate area (m²) Heated surface area of the furnace body (m²) | 13.1 282.1 | 13.1 307.9 | 16.5 421.5 | 18.84 455.3 | 22.1 478.7 | 20.4 456.4 | 28.64 810.2 |
| Heating area at the tail end of the boiler (m²) | 209.2 | 267.9 | 543.2 | 362 | 576 | 639 | 506.5 |
| Applicable fuels | M/A Ⅱ | M/A Ⅱ | M/A Ⅱ | M/A Ⅱ | M/A Ⅱ | M/A II | M/A Ⅱ |
| Full load operation consumption (kg/h) | 1618 | 1673 | 2333 | 2510 | 3083 | 3333 | 3758 |
| Smoke exhaust temperature (°C) | 170 | ||||||
| Smoke emission concentration (mg/nm³) | <80 | ||||||
| Maximum transport size (m) | 8.83 × 3.37 × 3.55 | 8.8 × 3.4 × 3.55 | 10.1 × 3.5 × 3.75 | 10.02 × 3.48 × 3.74 | 10.75 × 3.55 × 3.4 | 10.7 × 3.55 × 3.4 | 11×3.6 ×3.6 |
| Maximum transport weight (t)Installation dimensions (m) | 33 11.2×6.38 ×7.7 | 37.6 | 39 | 39.7 | 44 | 48 | 35 |
| 11.2 × 4.5 × 6.19 | 13×6.71 ×8.72 | 13 × 6.16 × 7.72 | 13×6.7 ×9 | 14×7.1 ×9 | 13×8.2 ×11 | ||
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Qingdao Huayuan Equipment Manufacturing Co., Ltd.
Hejiadian Industrial Park, Liaolan Town, Pingdu City, Qingdao City, Shandong Province
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