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DZL Horizontal Coal Steam Boiler

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  • DZL
  • 1t/h
  • 20t/h



1.The boiler adopts the latest research results,such as:arched tube plate,screw thread smoke tube,hot water boiler backwater ejection technology,solves the pot type boiler tube plate crack at the lower part of the drum,drum kits,water wall tube broken ,low  thermal efficiency,low output,poor adaptability of coal.

2.Combustion:fuel from coal scuttle fall  in front of the stove grate,during operation ,after coal  preheating and dry distillation,ignition,combustion,the slag drop  into the slag bucket,then been removed out furnace by by slagging machine at any time.Furnace arch uses herringbone arch,improving the conditions of ignition.Flue gas  forms vortex between the throat of  the front,rear arch  mixed with air.After combustion ,flue gas enters  the two wings flue,through the front smoke box into the thread smoke tube,then go through cast iron economizer(hot water boiler no need )dust collextor,finally discharged by lead fan to  chimney.

3.Boiler water circulation  progresses on natural circulation and ejection. The radiation heating surface is  left and right side cold water  wall  .The two wings of boiler furnace are main  convection heating surface.The thread smoke tube in boiler furnace are  convection heating surface.The boiler furance is seperated by  fold smoke wall-firebox and reburning chamber .Boiler main body is covered by  three-dimensional shape plate shell . 

coal gas steam boiler

Product Parameter List:

The main technical parameters of DZL series coal fired steam boiler

Project Unit
The rated capacity T/h 1 2 3 4 6 8 10
The rated steam pressure Mpa                 0.7、1.0、1.25、1.6、2.5
The rated steam temperature(℃)                 170、184、194、203、226
Feed temperature                 20、60、105
        Avaible fuel                 AⅡ
Design the thermal efficiency 80.2 80.1 80.3 80.6 80.3 80.5 80.6
The fuel consumption  Kg/h 181 378.4 493 723 1089 1509 1750
                The  transport dimension
mm 5200*2100*3000 5525*2440*3400 6300*2650*3400 6081*2575*3400 8000*2900*3550 7526*3340*4300 8980*3200*3550
Boiler installation structure The  fast                      The   assembly

    According to customer order requirements,the company can provide customized products for specific power supply in the world.


Product Detail Analysis:

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Technological Process

Manufacture Process

Our Customer


Our Services
For each user, we have detailed understanding and analysis of their different production environment and the shortage of the products, so that to provide reasonable technical solution and timely after-sales service.We attach great importance to the effective operation of boiler product system to provide customers with solutions to problems, at the same time to sent experienced engineer to on-site guidance.The company has accumulated rich experience in the scene to deal with problems,which provides strong technical support and perfect after-sales service to the equipment we manufactured.Only users success is our success!
Company Information

Wilford occupies market by good quality and gets respect by good faith.Wilford Thermal has B class special equipment manufacturing license.the certification of ISO9001 quality system.the Famous brand product of SuZhou,the certifications of satety radiancy license.Meanwhile Wilford gets authorization of patent rights of high-tech products and keeps increasing.Wilford Thermal insists on R&D as company development's core.

Established in 1998, Zhangjiagang Wilford Thermal Co.,Ltd. Is specialized in the production of oil, gas, electric heating steam boilers, hot water boilers, biomass-fired boilers and other energy saving and environmental-protective equipment, which is a licensed B-class boiler manufacturer with the U.S.ASME(American Society of Mechanical Engineers) factory authentication and ISO9000:2008 quality system certification.
Contact Us


No5,Nanyuan Road Economic Development Zone, Zhangjiagang
Tel: +86-512-5817 0166
Fax: +86-512-5869 8850
WhatsApp: +86 136 0156 8070
WeChat: 136 0156 8070

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Address: No5, Nanyuan Road Economic Development Zone, Zhangjiagang
Tel: +86-512-5817 0166
Fax: +86-512-5869 8850
Email: manager@wilfordboiler.com
WhatsApp:+86 136 0156 8070
WeChat: 136 0156 8070


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