Brand Name: BZ
Model Number: WNS/DZL
Place of Origin: Hebei, China (Mainland)
Refractory cement steam boiler suit
General features of WNS series steam boiler:
1. horizontal , gas & oil fired , water tube, industrial and low pressure;
2. wetback and three-backhaulstructure design;
3. With high efficiency economizer, the thermal efficiency can reach more than 90%.
4. The spring-loaded type explosion door ensures the boiler safety
5. The removable smoke boxfacilitates the maintenance
6. Internal micro positive pressure combustionreduces the low temperature corrosion.
7. Equipped with protection devicesfor overheating, overpressure, lacking water, leak detection, flameout, etc. This ensures the boiler to operate safely and efficiently.
The product advantage:
1. Subulate furnace and corrugated furnace combination
Function: (1) Make the structure more compact; (2) improve the thermal efficiency; (3) relieve the expansion and contraction
2. Smooth tube and spirally corrugated tube combination
The smooth tube
Function: Prevent the exhaust from condensing inside the boiler to prolong its service life ;
The spirally corrugated tube
Function: (1) relieve the expansion and contraction; (2) Heat transfer enhancement;; (3) clean groove by itself.
3. The furnace sits in line with the combustion
Function: (1) Make the structure more compact; (2) prolong its service life;
Mark:
The combination of our gas fired boiler, imported burner and economizer are the perfect match, which is high-efficient, environment-friendly and energy-saving.
The measures of quality assurance as follow:
1. Strength calculation report with applied materials information;
2. 100%NDT(non-destructive inspection) report of steel plate, tube and welding rod;
3. 100% X-ray inspection report (welding seam): to ensure the quality of the entire boiler;
4. Hydraulic test report: ensure the standard working pressure and safety;
Projects | unit | WNS1 | WNS2 | WNS4 | WNS6 | WNS10 | WNS15 | WNS20 | |
rated evaporation | t/h | 1 | 2 | 4 | 6 | 10 | 15 | 20 | |
Nominal steam pressure | Mpa | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | |
Nominal steam temperature | °c | 194 | |||||||
Rated inlet water temperature | °c | 20 | |||||||
body heating surface | m² | 25.5 | 60 | 111 | 160 | 260 | 380 | 482 | |
Economizer heating surface | m² | 5 | 10 | 16 | 25 | 30 | 46 | 62 | |
Design thermal efficiency | % | 91.8 | |||||||
Design environment temprature | °c | 20 | |||||||
Design blowdown rate | % | 4 | |||||||
Net weight of boiler | t | 6.5 | 9.8 | 14.8 | 20.7 | 30.4 | 43.3 | 50.4 | |
operational water volume | t | 3 | 5 | 7.5 | 10.7 | 16.7 | 25 | 31.5 | |
full water volume | t | 4 | 6.8 | 10 | 14.6 | 22.3 | 31.1 | 36.6 | |
Fuel consumption | Natural gas | Nm3/h | 75.4 | 149 | 298 | 447 | 743.6 | 1084.4 | 1444.3 |
Diesel | kg/h | 64 | 132 | 265 | 382 | 636 | 951 | 1267.6 |
General features of the DZL series steam boiler: Low pressure, horizontal, industrial, coal fired, fire tube, automatic chain grate steam boiler. The rated evaporation is 1 ton/hr , 2 ton/h, 4 ton/h, 6 ton/h, 10 ton/h, 15 ton/h, 20 ton/h.
Product advantage:
1. Spirally corrugated tube
Function: (1) Heat transfer enhancement; (2) Improve the suppleness to avoid the tube plate cracking; (3) Clean groove itself.
2. Arched tube plate
Function: (1) reduce the thermal stress of weld; (2) improve the tube plate suppleness; (3) simplify the structure and save the boiler room space.
3. Complete protection device
Function: deal with the situation of overpressure, over-temperature, water shortage and flameout.
4. Up-tube layout
Function: (1) Avoid the bulging on boiler drum; (2) Promote the water cycle (3)clean the sediment in the boiler bottom.
5. Airfoil flue
Function: Lower the high temperature of tube plate flue gas. And then reduce the thermal load of the boiler bottom.
Product feature
1. Low coal consumption and High thermal efficiency;
2. Reasonable water cycling, large water capacity and spacious steam volume;
3. Equipped with light chain belt assembly grate, blowing machine and draught fan.
4. High automation, mechanical adjustment of water supply, high and low water level alarm;
5. Low water and blowers interlocking protection;
6. Mechanical operation of boiler coaling, slag discharging;
7. Simple operation and quick installation.
Technical parameters
Project | Unit | Dzl1-0.7 | Dzl2-1.0 | Dzl-4-1.25 | Dzl6-1.25 | Dzl10-1.25 | Dzl15-1.25 |
rated evaporation | t/h | 1 | 2 | 4 | 6 | 10 | 15 |
rated steam pressure | MPa | 0.7 | 1.0 | 1.25 | 1.25 | 1.25 | 1.25 |
nominal steam temperature | ℃ | 170 | 183 | 194 | 194 | 194 | 194 |
Rated inlet water temperature | ℃ | 20 | 20 | 20 | 20 | 20 | 60 |
heating area | m² | 30.5 | 64.2 | 128 | 190.4 | 364.6 | 594.9 |
Active grate area | m² | 2 | 3.6 | 5.29 | 7.37 | 12.67 | 16.11 |
fuel | coal, biomass, pellets, biomass pellets, wood pellets, wood chips, sawdust, rice husk, solid fuel, dual fuel, multi fuel...etc | ||||||
coal consumption | kg/h | 191.5 | 388 | 780 | 1155 | 1890 | 2250 |
Exhaust gas temperature | ℃ | 158 | 167.5 | 165.5 | 166 | 156.7 | 153.5 |
Design efficiency | % | 78.9 | 78.1 | 78 | 79 | 79.8 | 80.4 |
Max transportation weight | t | 15 | 19.5 | 30.5 | 37.5 | 72 | 61 |
We have totally five workshops which covers an area of nearly 3600 square meters and employ 600 person including more than 100 engineers and technicians. Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. Besides, we have received ISO9001 certification.