Basic Info.
Installation
Packaged and Assembled Boilers
Burning Style
Chamber Combustion Boiler
Feeding Water Temperture
20
Designed Fuel
Biomass (Wood Pellet, Saw Dust, etc )
Coal Consumption
1155 Kg/H
Max. Transport Weight
25 Ton
Max. Transport Size (Lxwxh)
6.9X3.27X3.5m
Assembly Size
8.4X4.0X6.2m
Transport Package
Standard Seaworthy Package
Specification
SZL8-1.25-M
Product Description
SZL series biomass-fired steam boiler
SteamProduct thermal capacity: | 4-35 t/h |
Working pressure: | 1.0-2.5 MPA |
Outlet temperature: | 184-350 ºC |
Available fuel: | Biomass molding granules, wood chip, corn cob, saw dust |
Available industries: | Heating, chemical, food, tobacco, textile, print and dyeing, feed, medicine, building materials, wine, hospital |
-Introduction SZL series biomass-fired steam boiler is package or shop-assembled water tube boiler with double steam drum and chain grate stoker structure. 4-6 tph boiler is package boiler and 6-35 tph is shop-assembled structure, which is composed of 2 parts, upper part is heat absorbing surface and lower part is combustion equipment. The former part of boiler body is surrounded by membrane wall, its upper part connects with boiler drum and lower part connects with header, which forms a combustion chamber to absorb the radiated heat from furnace; there are dense convection tube bundle between the back side of upper and lower drum, the high temperature smoke enters a separate economizer after flushing heat absorbing surface then discharge from chimney.
Technical advantages
CNC manufacturing technologyThe key processing technologies such as steel plate blanking, circling, drum and tube plate drilling adopt advanced CNC machining to reduce the assembly stress and prolong the service life of the boiler.
Steel tube cutting, thread tube pressing and convection tube processing all adopt advanced CNC technology.
Automatic production line.
Advanced welding processThe welding of important parts like the vertical and circular seams of the boiler, the tubes, the inside of boiler and the flange are all adopted automated welding processes such as submerged arc welding or gas shielded welding to ensure the welding quality. All the vertical and circular seams will be done 100% radiographic inspection.
Tube flange weld adopts robot welding.
The chain grate panel, front and rear smoke chamber panel adopts CNC plasma cutting machine to cut orderly and beautifully.
Unique structural designAccording to different capacity, different numbers of independent air bins are arranged from front to back of the grate.
The user can reasonably adjust the air distribution according to different combustion conditions to ensure that the fuel is fully burnt.
Secondary air is input to disturb fuel gas in the furnace, to ensure the fuel is burnt totally. The independent secondary fan makes it easy to control and adjust the air volume and air pressure.
Feeds evenly feeding and avoid flashback.
Low NOx emissionsGraded air supply and special furnace arch structure decrease the NOx emissions to 100mg/m³.
Different biomass raw materials are analyzed by numerical simulations, thermal efficiency is more than 90%.
- Boiler Specification Model | Rated thermal power(t/h) | Rated working pressure(MPa) | Steam temperature | Feed water temperature |
SZL4-1.25-M | 4 | 1.25 | 194 | 20 |
SZL4-1.60-M | 4 | 1.6 | 204 | 20 |
SZL4-2.45-M | 4 | 2.45 | 225 | 20 |
SZL6-1.25-M | 6 | 1.25 | 194 | 20 |
SZL6-1.60-M | 6 | 1.6 | 204 | 20 |
SZL6-2.45-M | 6 | 2.45 | 225 | 20 |
SZL8-1.25-M | 8 | 1.25 | 194 | 20 |
SZL8-1.60-M | 8 | 1.6 | 204 | 20 |
SZL8-2.45-M | 8 | 2.45 | 225 | 20 |
SZL10-1.25-M | 10 | 1.25 | 194 | 20 |
SZL10-1.60-M | 10 | 1.6 | 204 | 20 |
SZL10-2.45-M | 10 | 2.45 | 225 | 20 |
SZL20-1.25-M | 20 | 1.25 | 194 | 20 |
SZL20-1.60-M | 20 | 1.6 | 204 | 20 |
SZL20-2.45-M | 20 | 2.45 | 225 | 20 |
SZL30-1.25-M | 30 | 1.25 | 194 | 20 |
SZL30-1.60-M | 30 | 1.6 | 204 | 20 |
SZL30-2.45-M | 30 | 2.45 | 225 | 20 |
SZL35-1.25-M | 35 | 1.25 | 194 | 20 |
SZL35-1.60-M | 35 | 1.6 | 204 | 20 |
SZL35-2.45-M | 35 | 2.45 | 225 | 20 |
- Product Features:
1. After simplifying the water-cycle route, we can reduce the water-cycle resistance, raise ascending tube velocity, improve the stability of the water cycle and ensure a safe and stable operation.
2. Design enough heating surface, which makes more heat from fuel absorbed. Flue smoke temperature can be lower than 170ºC.
3. Reasonably design front and back arch to improve the temperature in the furnace. We also strengthen the disturbance of smoke in the high temperature area. These reduce heat lose and fly ash loss as a result of incomplete combustion.
4. We adopt light chain grate and independent air chamber. We strengthen the seal airtight of the two sides of chain grates. These make the fuel burn fast and fully.
5. Our boiler have a large convection heating surface, a stable performance and even a long time overload work. What's more, we design the convection tube bundles in alternate permutation instead of in line arrangement. All of these designs make our boilers obtain a higher heat efficiency than normal, up to 81%.
6. We design double side air inlet and independent air plenum. And at the exit of furnace, we set up a smoke separation device by inertia, which makes the original discharging dust concentration lower than 1800 mg/Nm3. Our high efficiency dust collector makes sure the dust removal efficiency up t0 90%, SOX and NOX removal efficiency up to 98%. These measures can meet the global demands and standards of environmental protection.
7. Compact structures are designed, except the 4t/h and 6 t/h packaged steam boiler. That can save boiler house and reduce the installation workload and time.
8. We enlarge the diameter of steam drum to supply a big space of water-steam separation device. So that we can offer steam in good quality.
9. High automatization, safe and easy operation. In the electrical control cabinet, we design automatic feeding water, alarm and safety interlock of high/low water level, air blower and draft fan.
- Control and safety systems
1. Alarm system
1.1 Sound-light alarm of high and super-high steam pressure;
1.2 Sound-light alarm of high and lowe water limit level;
1.3 Sound-light alarm of pressure loss in the water pumps;
1.4 More safety devices are designed and connected with the electric control cabinet (ECC). More details will be explained in the ECC Manual.
Address:
No. 76, Xinda Rd, Fenshui, Zhoutie Town, Wuxi, Jiangsu, China
Business Type:
Manufacturer/Factory
Business Range:
Industrial Equipment & Components, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 14001, ISO 20000, OHSAS/ OHSMS 18001, BSCI, ASME
Company Introduction:
Wuxi ZOZEN Boilers Co., Ltd., has been committed to manufacturing, researching and developing industrial boilers since its foundation in 1994. ZOZEN is located in Wuxi, a city in southern Jiangsu province. ZOZEN has obtained PRC Grade A Manufacture License of Special Equipment, ASME "S" and "U" stamps, ISO9001, and many other international certificates of authorization. Meanwhile, ZOZEN has more than 400 varieties and specifications of products including steam boilers, hot water boilers, thermal oil boilers and boilers′ accessories.
ZOZEN′s WNS series and SZS series gas-fired boilers are awarded "star of energy efficiency" voted by MIIT. To enhance productivity and guarantee the processing quality, ZOZEN has introduced international advanced process equipment, including CNC planar driller, CNC plate rolling machine, automatic welding of base pipe and intersecting line CNC cutting machine. With over 30 years of efforts, ZOZEN high-quality boilers are exported to many countries all over the world and all walks of life including tobacco, rubber, food, paper-making, pharmaceuticals, electronic, etc. Furthermore, ZOZEN has established a comprehensive after-sales service system to offer our valued customers with "Full Process", "Full Day", "Full Aspects" and "Full Spirit" services.
ZOZEN also welcomes OEM and ODM orders all time. Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can consult our customer service about your sourcing requirements.
Welcome to visit ZOZEN and we are looking forward to cooperating with you!