DZL Coal fired steam boiler
Introduction
Model、specification and Configuration Illustration
Fuel choice instruction:design different arch according to different coal form for satisfication burn requirement
The instruction of Grate's configuration: configurate different grate according to the quality of coal
The instruction of dust collector's configuration:choose different dust collector according to different environmental protection regulation
The instruction of slag remover configuration:configurate different removers(sprial or scraper) according to the feature of fuel
The instruction of steam distributor's configuration:configurate the number of tube socket of output and input according to the workshop's requirement
The instruction of water treatment device's configuration:configurate water treatment device' according to the hardness of water
DZL Coal fired steam boiler
DZL Coal fired steam boiler
DZL Coal fired steam boiler
Unique orientation
The paragon of water-fire tube shell boiler
The new DZL water-fire tube boiler is a new eco-friendly and energy-saving product. After 30 years' Research and experiment by professor Li Zhiguang- a famous boiler expert, professor of Harbin Institute of Technology and director of Beijing Institute of Light Boiler. It is a water- fire tube shell boiler, vertical furnace, two-wing flue, and the design of three-pass spirally corrugated tube. Using the unique spirally corrugated tube technology to transfer the heat efficiently. With compact structure, scientific construction technology, precise manufacture, high technical maturity and stable operation, it is well recognized by users after more than 20 years' market experience.
Presentation of boiler body detail
Arched tube plate
Spirally corrugated tube
Presentation of boiler grate detail
Block and porous of grate bars
External oil cup design
Integrated wind duct design
Features
Unique manufacturing technique and complete inspection process
1. High temperature annealing treatment of Arched tube plate
2. Fully automated tube sheet welding
3. 1.4 times' hydro test
4. All-around crack detection
5. Optimizing installation technique during 20 years' production
6. 24 hours operation debugging of grate
7. 60 lines inspection before delivery
8. Fully automated processing of spirally corrugated tube
9. Fully automated Precise technique of blanking
10. Experienced welding construction team
Technology
Unique technical expression
1. Spirally corrugated tube-Function: Strengthen heat transfer, so as to reduce the number of smoke tubes and reduce the size of the shell
2. Two-wing Flue-Function:Lower smoke temperature of high temperature tube plate to slow down sub-cooled boiling, increase the flow path of smoke to improve the boiler efficiency
3. Arched tube plate-Function:Improve flexibility to reduce seam heat stress of pipe end
4. Large-sized down pipe-Function:Improve flow and scouring speed of high temperature tube plate and reduce water temperature to prevent subcooled boiling
5. Independent self support-Function: self support; compact structure
6. New arch-Function: strengthen combustion, strong coal adaptability
7. Smoke separation room-Function:separate the smoke by inertia
8. Grate type Steam and water separation device-Function:separate steam and water more effectively.Function:enable to watch the burning state from front and rear
9. Front and rear furnace door for watching fire-Function: the furnace arch designed depends on the type of fuel
10. Customized furnace arch-Function: the furnace arch designed depends on the type of fuel
Grate technology features
1.Chain belt type grate stoker
2.Block porous grate bars
3.Multiple duct distribute wind design
4.Seals design at the two sides of grate
5.Stretched ash removing device
6.Overall pouring spillplate
7.New casting material for furnace arch
8.Integrated delivery
The machine's Technical features
1.Chain belt type grate stoker
2.The boiler is packaged well before leaving factory
3.Economizer configuration
4.Double safety valve configuration
5.Double water gauge configuration
6.Double pressure gauge configuration
7.Double providing water pump configuration
8.PLC intelligent control
9.Simple foundation construction
10.Auxiliaries modularity design
Configuration Instructions
Instruction of the boiler's configuration:
Boiler Main Body
Boiler Main Body
Induced Fan
Induced Fan
Forced Fan
Forced Fan
Speed Reducer
Speed Reducer
Control Box
Control Box
Valves and Gauges
Valves and Gauges
Instruction of system configuration:
Ceramic Multi-tube Dust Collector
Ceramic Multi-tube Dust Collector
Composite Granite Water Film Dust Collector
Composite Granite Water Film Dust Collector
Chimney and Smoke Ducting
Chimney and Smoke Ducting
Economizer
Economizer
Slag Remover
Slag Remover
Softened  Water Device
Softened Water Device
Steam Distributor
Steam Distributor
Water Pump
Water Pump
Process of smoke flow:
Forced fan-grate-furnace-the two wings flue-front smoke box-smoke pipe-back smoke box-Economizer-Ceramic multi-tube dust collector-Composite granite water film dust collector -Induced fan - chimney  
 picture
Waterway Process:
Tap water-Softened water tank-supply water pump-boiler-steam distributor-workshop
Parameters
Model DZL1-1.0-AII DZL2-1.0-AII DZL2-1.25-AII DZL4-1.25-AII DZL6-1.25-AII
Rated Evaporation Capacity(t/h) 1 2 2 4 6
Rated Working Pressure(MPa) 1.00  1.00  1.25 1.25 1.25
Saturated Steam Temperature(℃) 184 184 194 194 194
Boiler Water Capacity(m3) 3.15 4.75 4.77 7.2 8.1
Flue Gas Temperature(℃) 109 127 131 140 141.7
Heating Surface(m2) 28.3 53.5 53.5 105.9 146.3
Economizer heating surface(m2) 21.12 26.4 26.4 43.2 104.64
Grate Effective heating surface(m2) 2.2 3.24 3.24 5.4 7.59
Maximum shipping dimension(mm) 5230x2000x2780 5950x2400x3250 5950x2400x3250 6830x2550x3484 8170x3180x3804
Maximum shipping weight(T) 15.2 22 23.8 27 40
Packaging and Shipping
The boiler is packaged before leaving factory within1-6t/h
The arch of boiler is built in locale above 6t/h
Our Services
Promises
1.Technology accmmulation of 60 years,over ten thousands users,its life is up to 20 years
2.Pricise work, mature technology, cost-effective choice
3.We not only provide devices,but also technology and service
4.We are a company with technology and soul,Good reputation is our secret weapon.
5.Our existence is to make our customer satisfied.
Risk Deflection and After Sale
1 year guarantee,free maintenance within 1 year if there is quality problem.
User Site Recommended
Send Your Inquiry
Please feel free to submit your inquiry information to us. We will contact with you as soon as possible
Name:
Email:*
Phone:
Country:
Inquiry:*