SZL double drum horizontal chain-grate biomass boiler
Fuel type: natural gas
Typical application: laundries and ironing, food manufacturers, power plants, district heating, winter heating, industrial steam and hot water supply, etc
Thermal efficiency: ≥82%
Boiler capacity: 6 – 20t/h
The double-drum vertical steam boiler comes with a chain grate system and fitted with an updated design of water tube assembly. It is highly efficient with high overload capacity and can be used with a wide range of fuels. The boiler is mainly made up of an upper part and a lower part, with an economiser and an air preheater fitted to the rear. The furnace is equipped with a moving grate. The flue gas passes the tubes twice transferring heat to water before being directed to the economiser and air preheater. The ash/airborne particles contained in the flue gas is collected by the precipitator preventing them from being released into the atmosphere or the surrounding area. The cyclone separator is used in the first stage of the particle removal process. It creates a spiral vortex inside the chamber in order to collect particles in the flue gas. The wet scrubber is a more sophisticated device than the cyclone separator. It operates under the same principle as the cyclone separator but also makes use of water in the process. It not only collects particles in the flue gas, but also absorbs and neutralises some of the harmful gases in it, thereby reducing the overall emission of particles and harmful gases.
FEATURES
Complete combustion system
Chain-grate boiler, independent wind chamber
Advanced engineering
Thermal efficiency ≥85%
Tight membrane wall structure with large radiating area
Automatic pressure, temperature and water level controls
Low carbon footprint and eco-friendly
Compliant with national manufacturing specifications
Investment cost
Abundant fuel sources with stable prices
Simple on-site installation: single-storey boiler room, short installation period
SPECIFICATION
Model | |||||||
SZL(W)6-1.25-M | SZL(W)8-1.25-M-| | SZL(W)10-1.25-M-|| | SZL(W)15-1.25-M | SZL(W)20-1.25-M | |||
Specification | Rated evaporation | t/h | 6 | 8 | 10 | 15 | 20 |
Rated steam pressure | Mpa | 1.25/1.6 | |||||
Rated steam temperature | ℃ | 193/204 | |||||
Rated water inlet temperature | ℃ | 20/105 | |||||
Design thermal efficiency | % | >82 | |||||
Heat of combustion | kcal/kg | 4000 | |||||
Fuel consumption | kg/h | 1140 | 1332 | 1665 | 2500 | 3330 | |
Blower | GG6-15 | GG8-15 | GG10-15 | GG15-15 | GG20-15 | ||
Fan | GY6-15 | GY8-15 | GY10-15 | GY15-15 | GY20-15 | ||
2nd fan | 9-26-4.5A | 9-26-5A | 9-26-5.6A | ||||
Governor box type | GP-10P | GL-16P | GL-20P | ||||
Slag way | Shave plate-type/ Spiral | ||||||
Precipitator | Cyclone dust removal/Water film dust removal | ||||||
Heated surface | |||||||
Ontology | m³ | 209 | 255 | 298 | 438 | 568 | |
Steel economizer | m³ | 35.3 | 32 | 47 | 80 | 102 | |
Economizer | m³ | 65.6 | 130.8 | 174.4 | 354 | 413 | |
Air preheater | m³ | / | 80.9 | 120 | 170 | 220.8 | |
Pump | Model | QDL8-20 | QDL12.5-11 | QDL12.5-13 | QDL18-13 | QDG-G36*6 | |
Input power | Kw | 7.5 | 11 | 15 | 22 | 30 | |
Pipe | Main steam valve diameter | DN | 125 | 150 | 200 | ||
Water inlet diameter | DN | 40 | 50 | 80 | |||
Safety valve diameter | DN | 80*1/50*1 | 80*2 | 100*2 | |||
Blowoff valve diameter | mm | 50/40 | |||||
Chimney | Φ | 600 | 700 | 850 | 1000 | 1200 | |
Overall size | Weight | t/h | 72 | 85 | 100 | 150 | 175 |
Length | m | 8.9 | 8.5 | 10.7 | 12 | 13.2 | |
Width | m | 3.2 | 2.8 | 3.5 | 3.7 | ||
Height | m | 6 | 5.6 | 6 | 6.8 |