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DHL Series Coal Fired Steam Boiler

DHL corner tube boiler is field assembled boiler, it uses a piping system as the frame of the entire boiler, and it bears the full load of the boiler, which makes a non-framework boiler. At the same time, this frame also serves as the down comer of the boiler and upper and lower headers. The boiler drum is an external type drum, the furnace is a fully enclosed membrane wall structure, the convective heat absorbing surface adopts the flag tube structure. The corner tube boiler has the advantages of compact structure, low steel consumption and rapid temperature increase.

Product thermal capacity: 20-75 t/h

Working pressure: 12.5-54 bar

Available fuel: Bituminous coal,biomass

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Our boiler products are applied in these enterprises.

Product Advantages

WIDE FUEL ADAPTABILITY

Applicable to bituminous coal, lean coal, anthracite, etc.
LARGE VOLUME FURNACE

Ensure sufficient fuel combustion, improve thermal efficiency
CUSTOMIZED SYSTEMS AND SOLUTIONS

Save your money and time
EASY TO OPERATE

Advanced control system, high degree of automation

TECHNOLOGY&PROCESS

Sufficient output, high combustion efficiency

Adopts the furnace with the fully sealing membrane wall structure and increases the furnace volume to make the fuel stay longer in the furnace

High thermal efficiency of 82% and above

The flag-type convention heating surface adopts the uniform velocity to reduce the ash accumulation and increase the heat transfer coefficient

NC cutting
Cut edge
Intelligent welding
Drilling and reaming

Product parameters

Model	Rated thermal power (t/h)	Rated working pressure (bar)	Rated steam temperature (℃)	Thermal efficiency (%)
DHL35-1.25-AⅡ	35	12.5	194	82
DHL50-1.25-AⅡ	50	12.5	194	82
DHL75-1.25-AⅡ	75	12.5	194	82
ZZ-35/3.82-AⅡ	35	38.2	450	82
ZZ-50/3.82-AⅡ	50	38.2	450	82
ZZ-65/3.82-AⅡ	65	38.2	450	82
ZZ-75/3.82-AⅡ	75	38.2	450	82
ZZ-75/5.3-AⅡ	75	53	485	82

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Corner tube steam boiler

DHL Series Coal Fired Steam Boiler

Capacity

20-75 t/h

Design pressure

12.5-54 bar

Fuel type

Bituminous coal,biomass

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Description

Corner tube non-framework structure
Fast temperature rise
Efficiency up to 82%
High degree of mechanization
Convenient maintenance
Safe, reliable, long service life

Structure Advantages

Features & Benefits
数字圈Furnace Fully enclosure water cooling wall structure, right angle rear arch	• Good airtightness, no leakage
数字圈Combustion equipment Forward rotating beam type chain grate	• Reduce carbon content of slag; • Improve thermal efficiency
数字圈Heating surface Flag type, variable cross-section design	• Ensure uniform flue gas flow between high and low temperature area
数字圈Overhaul platform Reasonable arrangement	• Ensure water level safety when operating

Features & Benefits

数字圈Furnace

Fully enclosure water cooling wall structure, right angle rear arch

• Good airtightness, no leakage

数字圈Combustion equipment

Forward rotating beam type chain grate

• Reduce carbon content of slag;

• Improve thermal efficiency

数字圈Heating surface

Flag type, variable cross-section design

• Ensure uniform flue gas flow between high and low temperature area

数字圈Overhaul platform

Reasonable arrangement

• Ensure water level safety when operating

Do you have any questions?

Specifications

Rated thermal power (t/h)	Rated working pressure (bar)	Rated steam temperature (℃)	Thermal efficiency (%)
35	12.5	194	82
50	12.5	194	82
75	12.5	194	82
35	38.2	450	82
50	38.2	450	82
65	38.2	450	82
75	38.2	450	82
75	53	485	82

Cases Studies & Projects

The subsidiary of Ansell 15tph WNS series three pass oil-fired steam boiler

Location: Dominica

Capacity: 15 tph

Industry: Safety protection industry

Gotec Automotive Mexico 0.7MW WNS series gas-fired hot water boiler

Location: Mexico

Capacity: 0.7 MW

Industry: Auto industry

Inversiones Goa 7 C.A 1.5tph WNS series oil-fired steam boiler

Location: Venezuela

Capacity: 1.5 tph

Industry: Food industry

90 tph SZS series gas-fired steam boiler

Location: Uzbekistan

Capacity: 90 tph

Industry: Chemical industry

Who we are?

ZOZEN Boiler was founded in 1988, specialized in boilers manufacturing and development, has already been one of the best modern boiler manufactures in China. Our company passes the ISO9001:2000 and holds the ASME “S” and “U” certification. Boilers are exported to over 60 countries in Asia, Africa, Europe, Oceania and North American.

ZOZEN Service

12 Months	24 Hours	365 Days
Free Maintenance	Professional assignment	No Rest Online Standby

SZS Series Gas/Oil Fired Hot Water Boiler

Capacity: 7-116 MW

Pressure: 10-16 bar

Request a quote

WNS Fire tube boiler/ Gas-Oil Fired Steam Boiler/Lpg Gas Boiler

Capacity: 1-20 t/h

Pressure: 7-20 bar

Request a quote

DO YOU HAVE QUESTIONS? WE ARE HERE TO HELP YOU!

Online chat Inquiry

DO YOU HAVE QUESTIONS? WE ARE HERE TO HELP YOU!

Online chat Inquiry

Gas-fired(oil-fired) boilers

Coal-fired boilers

Biomass-fired boilers

Thermal oil heaters

DHL Series Coal Fired Steam Boiler

Our boiler products are applied in these enterprises.

Product Advantages

WIDE FUEL ADAPTABILITY

LARGE VOLUME FURNACE

CUSTOMIZED SYSTEMS AND SOLUTIONS

EASY TO OPERATE

TECHNOLOGY&PROCESS

Sufficient output, high combustion efficiency

High thermal efficiency of 82% and above

NC cutting

Cut edge

Intelligent welding

Drilling and reaming

Product parameters

DO YOU HAVE QUESTIONS? Contact the solution solver...

Awards & Honors

Need more information?

SZS Series Gas/Oil Fired Hot Water Boiler

WNS Fire tube boiler/ Gas-Oil Fired Steam Boiler/Lpg Gas Boiler

About

Products

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Contact

About

Products

Service

Contact