Types of Steam Boilers Used in Industry: Applications, ZOZEN Solutions, and Service Strength

Part 1: What Is a Steam Boiler and the Types of Steam Boilers Used in Industry

A steam boiler is a pressure vessel designed to heat water and generate steam through fuel combustion or electrical energy. The steam produced is then transported through pipelines to support industrial processes such as heating, drying, sterilizing, and driving turbines.

When discussing the types of steam boilers used in industry, boilers are generally classified according to fuel type and application.

1. Gas-Fired and Oil-Fired Boilers

Gas- and oil-fired models are widely recognized among the types of steam boilers used in industry for their clean combustion and high automation level. They are commonly used in regions with reliable fuel supply.

2. Coal-Fired Boilers

Coal-fired units remain important types of steam boilers used in industry in areas where coal is economical and readily available. They are often applied in heavy industries and large production facilities.

3. Biomass-Fired Boilers

Biomass boilers are increasingly popular types of steam boilers used in industry due to environmental concerns and renewable energy policies. They utilize agricultural residues, wood chips, or other biomass fuels.

Industries That Use Steam Boilers

Various industries rely heavily on the different types of steam boilers used in industry, including:

Food and Beverage Industry – Cooking, sterilization, pasteurization

Pharmaceutical Industry – Sterile steam for production processes

Chemical Industry – Reaction heating and distillation

Textile Industry – Dyeing and finishing

Paper and Pulp Industry – Drying and pulping

Power Generation Sector – Steam turbines and cogeneration

Each sector selects specific types of steam boilers used in industry based on capacity, pressure, fuel type, and environmental requirements.

Part 2: ZOZEN Steam Boilers – Advantages and Industry Cases

As a leading manufacturer, ZOZEN provides comprehensive solutions covering the major types of steam boilers used in industry. The company offers gas-fired, oil-fired, coal-fired, and biomass-fired steam boilers to meet diverse industrial demands.

Main Steam Boiler Series

WNS Series (Oil/Gas-Fired Boiler)

Capacity: 1–20 tph

Working Pressure: 0.7–2 MPa

Thermal Efficiency: Up to 98% (with economizer and condenser)

Structure: Horizontal, three-pass, wet-back design

This series represents one of the most efficient types of steam boilers used in industry, particularly suitable for food, pharmaceutical, and textile factories.

SZS Series (Oil/Gas-Fired Boiler)

Capacity: 2–110 tph

Working Pressure: Up to 5.3 MPa

Double-drum, D-type structure

High thermal efficiency and strong load adaptability

This series is widely applied in chemical plants and large industrial facilities requiring high-pressure steam.

SZL (Coal/Biomass-Fired Boilers)

Thermal capacity: 6-35 t/h

Working pressure: 1-2.5 MPa

Available fuel: Biomass molding granules, wood chip, corn cob, saw dust, palm shells, rice husk, etc.(Biomass-Fired Boiler )

Bituminous coal, lean coal, anthracite (Coal-Fired Boiler )

Double-drum, water-tube structure

Chain grate combustion system

Suitable for large-scale industrial production

DZL (Coal/Biomass-Fired Boilers)

Thermal capacity: 2-10 t/h

Working pressure: 1-2.5 MPa

Available fuel: Biomass molding granules, wood chip, corn cob, saw dust, palm shells, rice husk, etc. (Biomass-Fired Boiler)

Bituminous coal,lean coal,anthracite, (Coal-Fired Boiler)

Single-drum, compact design

Stable combustion and cost-effective performances

These models are important examples of cost-effective types of steam boilers used in industry in regions with solid fuel availability.

ZOZEN Industry Cases

Case 1

Case introduction: MCS Coca-Cola LLC became Coca-Cola’s authorized bottler in Mongolia in September 2001, helping the local market integrate with modern industry standards. Its parent company, MCS Group, was founded in 1993, starting with energy consulting. Today, it operates across multiple sectors, and its subsidiaries play a significant role in Mongolia’s economic growth.

To expand into new categories such as iced tea and juice, MCS Coca-Cola urgently needed highly efficient and stable steam boilers to support production. Because these new products require stringent temperature control, the stability of the steam boilers directly impacts product quality.

After three WNS series gas-fired steam boilers were installed, they delivered outstanding real-world performance in MCS Coca-Cola’s production. The burner atomizes the fuel for full combustion in the corrugated furnace, and the three-pass design ensures thorough heat utilization, significantly boosting thermal efficiency and effectively reducing fuel consumption. An intelligent control system precisely adjusts operating parameters, while 24/7 water level and pressure monitoring ensure stable and safe boiler operation.

Case 2

case introduction: Steam is essential in the course of daily production of food industry. PT.Sari Incofood Corporation is a leading exporter of instant coffee drink in Indonesia. To increase the core competitiveness and expand capacity, the company planned to renew old machines and equipments.  A steam boiler provides steam support for the production process of coffee pulping, liquid coffee concentrating and coffee freeze drying, therefore, a high-performance steam boiler plays an important role to guarantee the high-quality coffee powder. The previous boilers used by PT.Sari Incofood caused a lot of economic loss due to the insufficient fuel combustion and output. When choosing the high-performance boiler, they turned their eyes to the international stage, and were deeply impressed by ZOZEN with its advanced manufacturing technology and excellent products. After the deep exchanges and field investigations, ZOZEN recommended the SZL series water tube boiler for the company. ZOZEN engineer set up different numbers of separate wind barns according to the different capacities of boilers, so that the air distribution can be adjusted on each combustion phase to ensure the full combustion of fuel. In addition, except for the water level safety device required by international standards, ZOZEN also installed interlock protection of extreme low water level, electrode interlock of FD fan and ID fan to ensure the water security during boiler operation. PT.Sari Incofood Corporation spoke highly of ZOZEN products and technology, and ordered one set of 20 tph SZL series coal-fired steam boiler.

These successful projects demonstrate ZOZEN’s ability to provide customized solutions across different types of steam boilers used in industry.

Advantages of ZOZEN Steam Boilers

• High thermal efficiency
• Low NOx emission technology
• Advanced PLC automatic control system
• Optimized heat transfer structure
• Strong load response capability

ZOZEN combines advanced engineering with practical industry experience to deliver reliable performance.

Part 3: ZOZEN – Powering Industry with Excellence and Commitment

Behind every stable steam system stands a brand built on strength, innovation, and responsibility. At ZOZEN, we do more than manufacture boilers — we deliver confidence, performance, and long-term value to industrial partners worldwide.

1.Advanced Manufacturing, Built for Reliability

ZOZEN operates state-of-the-art production facilities equipped with intelligent CNC cutting systems, automated welding lines, and precision testing equipment. Every boiler is crafted under strict quality control standards, ensuring durability, safety, and consistent performance. From raw material selection to final inspection, excellence is embedded in every detail.

2.  Innovation That Drives Efficiency

Technology is at the core of ZOZEN’s growth. Continuous investment in R&D enables us to refine combustion systems, maximize heat transfer efficiency, and reduce emissions. By integrating advanced engineering design with real-world industrial experience, we create boiler solutions that help customers lower operating costs and achieve sustainable production goals.

3.Certified Quality, Globally Recognized

ZOZEN boilers comply with internationally recognized standards such as ASME, CE, and ISO certifications. These credentials reflect our unwavering commitment to safety, reliability, and global compliance — ensuring customers can trust ZOZEN equipment in any market.

4.Full-Service Partnership, Beyond Equipment

Our responsibility does not end with delivery. ZOZEN provides comprehensive support throughout the entire project lifecycle, including:

• Professional technical consultation
• Customized system design
• On-site installation and commissioning guidance
• Operator training programs
• Rapid-response after-sales service
• Long-term spare parts and maintenance support

5. A Trusted Global Brand

With projects successfully completed in over 100 countries and regions, ZOZEN has become a trusted name in the international boiler industry. From food processing plants to chemical production lines and energy facilities, our solutions power industries around the world.

Conclusion

Understanding the types of steam boilers used in industry is essential for selecting the most suitable steam generation solution. Gas-fired, coal-fired, and biomass models, different industries require different configurations to meet production needs.

With a complete product range, advanced technology, successful global case experience, and comprehensive service support, ZOZEN Boiler continues to deliver high-performance solutions across all major types of steam boilers used in industry. For enterprises seeking efficiency, safety, and long-term reliability, ZOZEN provides trusted and professional steam boiler systems worldwide.