Industry News

Bangladeshi Client Explores Biomass Power Plant Boiler Solutions at Taishan Group

Bangladeshi Client Explores Biomass Power Plant Boiler Solutions at Taishan Group

[ Biomass Boiler ]

Recently, Taishan Group hosted a visit from a Bangladeshi client who is planning to establish a 10MWe power plant. During the visit, the client expressed strong interest in purchasing a 45-ton, 3.82MPa, 450°C biomass power plant boiler, with wood chips and bark as the primary fuel source.

Comprehensive Factory Tour and Collaboration Discussions

To help the client better understand the complete power plant system, Taishan Group arranged visits to turbine and generator factories in Guangzhou and Hangzhou. These factories demonstrated how steam produced by the power plant boiler is converted into electricity through turbines and generators. This end-to-end insight enabled the client to grasp the seamless integration of boiler, turbine, and generator technologies.

Key Features of the Proposed Boiler

The 45-ton power plant boiler under consideration is specifically designed to handle biomass fuels like wood chips and bark. It offers:

  • High Efficiency: Ensuring optimal combustion and energy output.
  • Environmental Benefits: Utilizing renewable biomass fuel to reduce carbon emissions.
  • Reliability: Withstanding high-pressure and high-temperature conditions for stable operation.

A Step Toward Sustainable Energy Solutions

Taishan Group’s advanced solutions in power plant boilers align with the client’s goal of achieving efficient and eco-friendly energy production. The company is committed to providing tailored solutions and professional support to meet the unique requirements of the project.

This visit underscores Taishan Group’s expertise in biomass and power plant boiler technologies and strengthens its presence in the Bangladeshi market.

Norma Wang

Taishan Group website editor, specializing in international marketing. Focus on the global market of industrial boilers.

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JDE Coffee Visits Taishan Group to Explore Biomass Boiler Solutions

JDE Coffee Visits Taishan Group to Explore Biomass Boiler Solutions

[ Biomass Boiler ]

Taishan Group recently had the honor of hosting a visit from JDE Coffee, the world’s largest single-site instant coffee factory. As part of their sustainability strategy, JDE Coffee is considering installing a 15-ton biomass boiler fueled by coffee grounds. Currently, JDE Coffee is highly satisfied with Taishan Group’s biomass boiler solution and has expressed its intention for further cooperation.

Exploring Sustainable Energy Solutions

During the visit, JDE Coffee representatives toured Taishan Group’s production workshop and visited a biomass boiler application site, where they observed firsthand the high efficiency of our biomass boilers. They learned how coffee grounds and other organic waste can be converted into clean, renewable energy, helping businesses reduce their carbon footprint and decrease reliance on traditional fuels.

Advantages of Biomass Boilers

Biomass boilers are particularly suitable for companies like JDE Coffee that are looking for environmentally friendly energy solutions, offering the following key benefits:

  • Sustainability: Biomass boilers use renewable resources such as coffee grounds, agricultural waste, and wood chips, providing a sustainable energy solution.
  • Reduced Carbon Footprint: By utilizing organic waste as fuel, biomass boilers significantly lower greenhouse gas emissions, helping businesses achieve green development.
  • Cost-Effectiveness: Using locally available organic materials as fuel helps reduce operational costs, making biomass boilers a highly efficient and economical energy option.
  • Versatility: Biomass boilers can be customized to handle different types of fuel, making them adaptable to various industries and energy needs.

Taishan Group’s Expertise in Biomass Energy Solutions

Taishan Group has extensive experience in providing high-quality biomass boilers that meet the specific needs of various industries. The 15-ton biomass boiler we are offering to JDE Coffee will allow them to utilize coffee grounds as a valuable energy resource, promoting a circular economy and aligning with JDE Coffee’s sustainability goals.

Moving Toward a Greener Future

This visit marks another significant step for Taishan Group in promoting clean energy solutions worldwide. We are confident about the potential for future collaboration and look forward to providing more companies with efficient and environmentally friendly boiler solutions.

Andy Zhao

Senior Sales Manager
30+ boiler projects experience, focus on high-end customization, non-standard & special fuel boiler sales. Representative projects include waste heat boilers for Russian EVRAZ Steel, Coal CFB Boiler for Indonesia QMB New Energy Materials, HP drum & LP drum For Italian Nooter/Erisken, MP drum for Korean Hyundai Steel, LP drum for Korean POSCO Steel, 2 sets Air Cooling Coil for Finland Metso. Boiler Sales in Africa, Central Asia, Taiwan, etc.

JDE Coffee Visits Taishan Group to Explore Biomass Boiler Solutions Read More »

Biomass Fuel Boiler Operation and Monitoring

Biomass Fuel Boiler Operation and Monitoring

Introduction to Biomass Boilers
Biomass fuel boilers, also known as biomass heating systems, use renewable biofuel to produce heat and hot water. Biofuel, typically wood pellets, chips, or logs, offers a cost-effective alternative to electricity, oil, and gas, making these boilers ideal for year-round use. Biomass fuel provides economic, environmental, and social benefits, including cost savings, fossil fuel conservation, and reduced CO₂ and NOx emissions.

Types of Biomass Fuel
Common biomass fuels include wood logs, chips, and pellets, along with agricultural waste, animal byproducts, and household waste. While wood pellets and chips can be fed automatically into the furnace, logs require manual loading. Biomass is recognized for being environmentally friendly, releasing minimal pollution during combustion.

技术3

Key Operational Procedures

1.Boiler Operation Adjustment

  • Ensure the evaporation rate aligns with the rated value, meeting steam turbine requirements.
  • Monitor and maintain stable steam pressure, temperature, and water levels to ensure safety.
  • Optimize combustion for improved efficiency and fuel savings.

2.Water Level Control
Washing the Water Gauge

  • Open the blowdown valve to flush the steam pipe, water pipe, and glass tube.
  • Close the water-side valve, and wash the steam pipe and gauge glass.
  • Alternate between steam and water-side valves, ensuring each section is thoroughly cleaned.
  • After washing, confirm that the water level rises quickly and fluctuates. If the rise is slow, repeat the process. Operators must wear protective gloves and avoid facing the gauge directly during washing.

Water Level Adjustment

  • Keep the water level at the center line of the gauge, with acceptable fluctuations within ±30mm.
  • The water supply rate should remain steady to prevent overfilling. Water levels beyond ±50mm are considered out of limits and require immediate adjustment.
  • Regularly monitor the gauge, performing daily cleaning and calibration to ensure accuracy.

3.Steam Pressure and Temperature Management

  • Rated steam pressure: 4.1 MPa, with a fluctuation range of ±0.05 MPa. Any deviation beyond these limits requires immediate action and communication with the shift supervisor.
  • Normal steam temperature: 385°C, with an acceptable fluctuation range of ±5–10°C.
  • Adjust combustion intensity and desuperheating water flow gradually to stabilize steam parameters. Sudden adjustments can disrupt operations.

4.Combustion Adjustment

  • Regulate fuel input and air volume based on load changes to maintain stable steam production.
  • Distribute fuel evenly across the grate to prevent uneven combustion and reduce the risk of coking. Ensure the fire spreads uniformly across the furnace bed.
  • Keep the combustion chamber flame golden-yellow, with oxygen levels between 4–6%, and maintain a negative pressure of 10–20 Pa.
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5.Boiler Blowdown Process

Types of Blowdown

  • Continuous Blowdown: Removes water with high salt content from the boiler to prevent scaling.
  • Intermittent Blowdown: Removes sediment from the water wall headers.

Blowdown Procedure

  • Check the discharge valve before initiating blowdown, and raise the water level slightly above normal.
  • Open the primary valve first, followed by the secondary valve. Once blowdown is complete, close the secondary valve, then the primary valve, following a gradual sequence to avoid water hammer.
  • If pipe vibration occurs, pause blowdown until the issue is resolved. Avoid blowdown when the water level is below normal or when personnel are working near the system.

6.Rotating Machinery Maintenance

  • Check for abnormal vibrations, noise, or misalignment. Ensure all protective covers are in place, and anchor screws are tight.
  • Lubricate bearings regularly, ensuring oil levels are adequate. Refuel oil levelers once per shift.
  • Keep bearing temperatures below 80°C, and verify that cooling water is flowing smoothly.
  • Inspect transmission belts to prevent slippage or detachment during operation.

7. Operating and Maintenance of Slag Conveyor

Ensure the motor temperature stays below 80°C, and cooling water flow is stable. Check that the belt is free of red residue, and avoid reverse operation. Maintain proper oil levels by refilling when needed.

8. Maintenance of Slag Belt Conveyor

Make sure rollers are aligned and rotate smoothly. Lubricate the grate governor box and rotating parts as required. Keep the belt clear of residue and monitor the temperature of motors, bearings, and other components. Ensure the transmission belt remains in good condition without misalignment or wear.

9. Operating and Maintenance of Biomass Fuel Boiler

Regularly inspect all key components, including pressurized parts, valves, explosion-proof doors, and structural elements. Address any issues promptly. Follow the maintenance schedule for inspections and testing, log readings accurately, and ensure the operation area remains clean for safe performance.

Wade Zhang

CEO of Taishan Group Taian Boao International Trade Co., Ltd. 30 years experience in Global industrial boiler market,  Over 300 boiler projects experience, including 21+ EPC projects. Projects span 30+ countries & regions, involving industries such as nuclear power, energy & electricity, municipal heating, mining, textiles, tires etc.

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Taishan Group Successfully Delivers Heating Boilers for Mongolia Oil Pipeline Project

Taishan Group Successfully Delivers Heating Boilers for Mongolia Oil Pipeline Project

Recently, Taishan Group proudly completed the delivery of 16 high-efficiency single-drum horizontal chain grate (DZL) 2.8-1.0/95/75-H boilers for Mongolia’s oil pipeline heating project. This project, a significant collaboration with Mongolia Refining LLC and NORINCO International as the EPC contractor, strengthens our presence in the Mongolian energy market and sets the stage for future growth.

Project Background and Partnership

This landmark project involves Mongolia Refining LLC as the project owner, with NORINCO International as the general contractor. The project scope includes not only 16 single-drum horizontal chain grate (DZL) 2.8-1.0/95/75-H boilers but also auxiliary equipment, coal feeding systems, and environmental systems. These systems will be distributed across five heating stations, providing vital support to Mongolia’s crude oil pipeline transport.

Winning the Bid Through Collaboration and Expertise

During the bidding phase, Taishan Group’s tender office worked closely with departments like design, finance, and supply to develop a competitive proposal tailored to the client’s needs. Our team conducted meticulous cost analyses, reviewed project requirements, and submitted high-quality bid documents that ultimately secured the contract amidst strong competition. This success highlights our commitment to excellence in both project planning and customer service.

Project Execution and Quality Control

Throughout the project execution phase, Taishan Group maintained strict standards for quality control and client responsiveness. The design team actively engaged in technical exchanges with the project design institute, ensuring the equipment met all technical specifications. Additionally, our production and quality control teams worked diligently to meet third-party inspection requirements, enabling smooth and timely delivery of all components. This collaborative effort not only met the client’s expectations but also laid a strong foundation for future projects.

Establishing a Strong Reputation in Mongolia

This successful project delivery is a significant achievement for Taishan Group and reinforces our reputation in Mongolia. Following our previous heating project in Mongolia’s capital, this project represents another milestone, solidifying our position as a trusted provider of energy solutions in the region.

 

蒙古16台锅炉发货照片

Technical Highlights of the Single-Drum Horizontal Chain Grate (DZL) 2.8-1.0/95/75-H Boilers

The single-drum horizontal chain grate (DZL) 2.8-1.0/95/75-H boilers provided for this project offer high-performance features tailored to the needs of heating systems in colder climates:

  • Fuel: Lignite 
  • Thermal Power: 2.8MW per unit 
  • Pressure: 1.0 MPa 
  • Outlet Water Temperature: 95°C 
  • Return Water Temperature: 75°C
  • High Thermal Efficiency: Engineered for optimal energy utilization, these boilers reduce overall fuel consumption and operational costs.
  • Eco-Friendly Design: Equipped with advanced flue gas treatment technology, these systems significantly lower pollutant emissions.
  • Intelligent Control: With smart control features, the boilers adjust operating conditions based on real-time demand, ensuring stable and efficient performance.

Future Prospects in the Mongolian Market

Taishan Group is excited about the potential for continued growth in the Mongolian market. This successful delivery has enhanced our brand image and trust with local clients, providing a strong platform for future partnerships. We remain committed to developing energy-efficient boiler systems to support Mongolia’s industrial and energy infrastructure.

Wade Zhang

CEO of Taishan Group Taian Boao International Trade Co., Ltd. 30 years experience in Global industrial boiler market,  Over 300 boiler projects experience, including 21+ EPC projects. Projects span 30+ countries & regions, involving industries such as nuclear power, energy & electricity, municipal heating, mining, textiles, tires etc.

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11 Sets Taishan Group LPG Bullet Tank Delivered to Angola

11 Sets Taishan Group LPG Bullet Tank Delivered to Angola

[ Bullet tank ]

Bullet tank is widely used in underground LPG storage.

In October 2024, high pressure vessel manufacturer Taishan Group won a big order – 17 sets LPG bullet tanks. Single LPG bullet tank has a diameter of 8m, length of 80m and weight of 480tons. The client is Angola Sonangol, and total contract value is over 20 million USD.

Due to the huge volume, we transport the manufactured tank sections to the port in batches, and then weld and assemble them.

First batch delivery includes 11 sets bullet tanks, and rest 6 sets will be delivered at the end of the year.

新闻1

Our pressure vessel products cover petrochemical, nuclear power, offshore oil and new energy equipment fields. So far, a number of high-pressure vessel products have filled domestic gap. Our comprehensive strength ranks third in the same industry in China.

In recent years, Weihai Shidao Heavy Industry has exported more than 160 sets of large-scale vessels in over ten batches. The destination is mostly “One Belt and One Road” countries and regions, and the total export value is over 60 million USD. 

 

We will take this successful delivery as an opportunity to actively improve our technology and equipment level, strive to expand domestic and foreign markets, and make greater contributions to China’s manufacturing in the world.

Andy Zhao

Senior Sales Manager
30+ boiler projects experience, focus on high-end customization, non-standard & special fuel boiler sales. Representative projects include waste heat boilers for Russian EVRAZ Steel, Coal CFB Boiler for Indonesia QMB New Energy Materials, HP drum & LP drum For Italian Nooter/Erisken, MP drum for Korean Hyundai Steel, LP drum for Korean POSCO Steel, 2 sets Air Cooling Coil for Finland Metso. Boiler Sales in Africa, Central Asia, Taiwan, etc.

11 Sets Taishan Group LPG Bullet Tank Delivered to Angola Read More »

Sustainable Energy Solutions Using Wood Waste

Sustainable Energy Solutions Using Wood Waste

Our Mission: Promoting the Use of Renewable Energy

As a leading manufacturer of industrial boilers and power station boilers, we are committed to providing our customers with efficient and sustainable energy solutions. Recently, we welcomed two clients from Brazil who own multiple plantations. They plan to utilize wood waste from their production to build their own power plant, supplying clean electricity to the government. This collaboration not only highlights our expertise in biomass fuel but also demonstrates our commitment to sustainable development.

 

Touring Our Production Workshop

During their visit, we first took the clients on a tour of our production workshop, showcasing our advanced manufacturing processes and technical capabilities. Our facilities are equipped with modern equipment, ensuring that each boiler meets high standards of quality and efficiency. The clients showed great interest in our production processes, believing that this would provide solid technical support for their project.

Learning About Our Power Plant

Next, we guided the clients to our thermal power plant in Jinan. This power plant has successfully operated for nearly ten years, utilizing mixed biomass fuels (including wood chips, corn cobs, sawdust, and straw) to provide stable electricity supply to the local area. During the tour, the clients highly praised the efficient operation and environmental performance of the plant. They recognized that by using wood waste as fuel, not only can environmental pollution be reduced, but energy costs can also be effectively lowered, promoting the use of renewable energy.

 

Client Feedback and Future Cooperation

After the tour, we engaged in further discussions with the clients. They expressed strong interest in our technical strength and equipment, indicating a desire for close collaboration in future projects. The clients provided us with positive feedback, stating that our experience and technology in biomass utilization would offer invaluable support for their power plant construction.

Conclusion

As the global demand for renewable energy continues to grow, we are dedicated to providing innovative and sustainable solutions for our clients. We look forward to collaborating with more clients to promote the adoption and development of clean energy. If you are interested in our products and services, please feel free to contact us.

Norma Wang

Taishan Group website editor, specializing in international marketing. Focus on the global market of industrial boilers.

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10TPH Biomass Briquette Boiler to Morocco

10TPH Biomass Briquette Boiler to Morocco

Biomass Briquette Boiler is a kind of biomass boiler burning biomass particles forming fuel. Biomass briquette fuel features the following characteristics:

(1) High volatile matter and low fixed carbon, easy to ignite and burn.

(2) High hydrogen and oxygen content, conducive to combustion.

(3) Low ash content for woody biomass fuel, only about 2%.

(4) Low sulfur content, beneficial to environmental protection.

(5) Dense and regular shaped briquette fuel convenient for storage and short distance transportation.

(6) Improved energy density beneficial to automatic use.

(7) Standardized fuel lay foundation for biomass briquette boiler design standardization.

Biomass Briquette Boiler Design Analysis

Biomass briquette fuel is rod-shaped, block-shaped or granular fuel formed by extrusion, whose density is much greater than before.

The effusion rate of volatile matter and heat transfer rate are greatly reduced. The combustion includes: precipitation of water, precipitation and combustion of volatiles, and combustion of fixed carbon. In order to improve the combustion and boiler efficiency, take the following measures in the biomass briquette boiler design:

(1) The reciprocating grate with an inclination angle of 6°, not only reducing the overall height but ensuring the smooth movement.

(2) The grate reduction box adopts stepless speed control, which can accurately adjust the speed according to fuel combustion condition.

(3) The feedstock adopts variable frequency screw feeder plus distributor, ensuring accurate feeding and evenly distribution of fuel on the grate.

(4) Reasonable furnace height of biomass pellet boiler ensures lower furnace volume heat release rate.

(5) Reasonable height of secondary air ensures secondary air volume and outlet speed, and strengthens the combustion of volatile matter.

(6) Secondary air pipe is on the fire barrier, prolonging flue gas residence time and promoting the settlement of fly ash.

(7) Spirally corrugated tube has a flue gas velocity of 21m/s, preventing fly ash deposition and ensuring high heat exchange efficiency.

技术1

Biomass Briquette Boiler Structure

The biomass fuel boiler is double drum, longitudinal layout, reciprocating grate steam boiler. It includes two parts: upper boiler body and lower combustion equipment.

Upper boiler body includes drum, spirally corrugated tube, upper and lower headers, and water wall tube. The inner side is furnace wall, front and rear arches, fire barrier and flue duct. The outer side is steel frame and outer cover, and the middle is aluminum silicate insulation material.

Lower combustion equipment is 6° reciprocating grate, considering pushing and moving of fuel on grate and overall height limit.

The secondary air volume accounts for 25% of total air volume, and air speed is about 50m/s. The volatile matter of biomass briquette fuel is up to 70%. The design of secondary air is particularly important for ensuring the combustion of volatile matter and efficiency of boiler.

Andy Zhao

Senior Sales Manager
30+ boiler projects experience, focus on high-end customization, non-standard & special fuel boiler sales. Representative projects include waste heat boilers for Russian EVRAZ Steel, Coal CFB Boiler for Indonesia QMB New Energy Materials, HP drum & LP drum For Italian Nooter/Erisken, MP drum for Korean Hyundai Steel, LP drum for Korean POSCO Steel, 2 sets Air Cooling Coil for Finland Metso. Boiler Sales in Africa, Central Asia, Taiwan, etc.

10TPH Biomass Briquette Boiler to Morocco Read More »

Reciprocating Grate Furnace: Optimizing Low-Quality Coal and Biomass Combustion

Reciprocating Grate Furnace: Optimizing Low-Quality Coal and Biomass Combustion

Overview of Reciprocating Grate Furnace

The reciprocating grate furnace is an efficient furnace design widely used for the combustion of low-quality coal and biomass fuels. Its primary function is to optimize combustion efficiency, especially for fuels with inconsistent quality or high ash content. The furnace consists of several key components, including fixed grates, movable grates, a driving mechanism, and a reciprocating system.

The movable grates are designed to allow fuel to move gradually across the furnace surface, ensuring thorough combustion through each stage of the burning process. The grate system is stepped, with an inclined angle that facilitates the downward flow of fuel, ensuring efficient air circulation and improving combustion conditions.

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Working Principle of Reciprocating Grate Furnace

The combustion process in a reciprocating grate furnace is similar to that of a chain grate furnace. Fuel is fed into the furnace from the hopper and enters through a regulating gate that controls the fuel layer thickness. The reciprocating action of the grates moves the fuel from the front to the rear of the furnace, where it undergoes drying, volatile combustion, coke combustion, and ash disposal.

The continuous raking action of the movable grates helps move fresh fuel onto the burning bed, enhancing the ignition conditions. Additionally, during the return stroke, the grates push burning carbon particles back into the lower layers, providing heat to ignite the lower fuel layers, further improving combustion efficiency.

Design Features of Reciprocating Grate Furnace

The design of the reciprocating grate furnace aims to enhance air mixing and turbulence within the furnace, thereby improving combustion efficiency. Features include front and rear arches or a central baffle wall, along with secondary air systems to optimize the ignition conditions at the furnace bed. Proper airflow direction is crucial to ensure that combustible gases generated at the front of the grate mix with excess air and are fully combusted in the high-temperature zone.

The furnace’s staged air distribution system ensures that the appropriate amount of air is supplied at each combustion stage, preventing instability caused by uneven airflow.

Advantages of Reciprocating Grate Furnace

  1. High Adaptability: Especially effective for burning low-quality coal and biomass fuels with high ash content.
  2. High Combustion Efficiency: The continuous raking action of the grates increases combustion intensity and reduces heat loss.
  3. Simple Structure: Compared to chain grate furnaces, the reciprocating grate furnace uses less metal, which lowers initial investment costs.
  4. Dual-Sided Combustion: Unlike chain grate furnaces, the reciprocating grate furnace provides dual-side ignition, ensuring more stable combustion.

Disadvantages of Reciprocating Grate Furnace

  1. High-Temperature Wear: The head of the movable grates frequently rakes hot, glowing coke, making them prone to damage. Damage or detachment of the grates is difficult to detect and replace, which may affect boiler safety.
  2. Air and Fuel Leakage: Due to the furnace structure, there is a risk of air and fuel leakage along the sides of the grate, which can lead to unstable combustion, especially if the bed is uneven.

Conclusion

The reciprocating grate furnace is an excellent solution for burning various types of fuels, especially low-quality coal and biomass. With appropriate design and adjustments, it can significantly improve combustion efficiency, reduce heat loss, and ensure stable operation of industrial boilers. However, regular maintenance and improvements to the sealing structure are necessary to prevent combustion instability caused by structural issues.

Wade Zhang

CEO of Taishan Group Taian Boao International Trade Co., Ltd. 30 years experience in Global industrial boiler market,  Over 300 boiler projects experience, including 21+ EPC projects. Projects span 30+ countries & regions, involving industries such as nuclear power, energy & electricity, municipal heating, mining, textiles, tires etc.

Reciprocating Grate Furnace: Optimizing Low-Quality Coal and Biomass Combustion Read More »

Taishan Group Attends NEFTEGAZ 2024 in Russia

Taishan Group Attends NEFTEGAZ 2024 in Russia

Norma Wang

Taishan Group website editor, specializing in international marketing. Focus on the global market of industrial boilers.

Exhibition Dates: April 15-18, 2024

Location: ZAO Expo Centre Krasnaya Presnya, Moscow

Attendees: Zhang Xiao, Zheng Qian

Booth Number: 21F08

As a leading industrial boiler and power plant boiler manufacturer, Taishan Group successfully participated in the 22nd International Exhibition Equipment and Technologies for the Oil and Gas Industries (NEFTEGAZ 2024), held from April 15-18, 2024, in Moscow. NEFTEGAZ is the largest and most important oil and gas exhibition in Russia, ranking among the top oil exhibitions worldwide.

 

Through this exhibition, we realized that the Russian market has high entry barriers for some mid-to-high-end products, such as threaded locking ring heat exchangers, reactors, and low-grade fuel boilers. However, by leveraging existing typical users and strengthening relationships with local partners, Taishan Group still sees significant market opportunities.

Looking Ahead

Taishan Group will continue to invest in the Russian market, leveraging our established market foundation and customer resources to explore new business opportunities. We look forward to collaborating with more customers in the future to drive industry growth.

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What is a Power Plant Boiler? How Do Power Plant Boilers Work?

What is a Power Plant Boiler? How Do Power Plant Boilers Work?

Su Menghuai

National CFB Boiler Design Expert

  • National CFB boiler design expert.
  • Lead the design of China’s first 35TPH CFB boiler, marking a milestone in China CFB boiler development
  • Committed to designing 15TPH-300TPH CFB boilers throughout his 40 years experience.

With the increasing demand for electricity, power plants must produce energy efficiently and reliably.

Traditional power generation methods heavily rely on fossil fuels, leading to high greenhouse gas emissions and fluctuating fuel prices. This has a significant impact on both the environment and energy security.

Power plant boilers offer a practical solution, using various fuel types to produce high-pressure steam, which drives turbines to generate electricity. Modern boiler technologies significantly improve efficiency and reduce emissions.

Power plant boilers are integral to electricity generation, producing high-pressure steam from various fuels to drive turbines and generate electricity efficiently and reliably.

To understand how power plant boilers ensure a steady energy supply and meet the world’s growing electricity needs, keep reading.

Table of Contents

What is a Power Plant Boiler?

A power plant boiler is a large system used to generate high-pressure steam for electricity generation. The steam is produced by heating water with fuel combustion in the boiler furnace, and the resulting steam drives a turbine connected to an electric generator.

 

How Do Power Plant Boilers Work?

The working process of a power plant boiler involves several stages:

  1. Fuel Combustion: Fuel is burned in the boiler’s furnace, generating high-temperature flue gases.

  2. Heat Transfer: Heat from the flue gases is transferred to water tubes, converting water into high-pressure steam.

  3. Steam Generation: Steam is generated and collected in a steam drum, then superheated to increase its energy content.

  4. Steam Turbine: The high-pressure steam is sent to a turbine, where it expands and drives the turbine blades.

  5. Electricity Generation: The turbine drives a generator, producing electricity.

  6. Condensation: After passing through the turbine, the steam is condensed back into water and returned to the boiler for reuse.

Types of Power Plant Boilers

Pulverized Coal Boilers

Pulverized coal boilers burn finely ground coal in a combustion chamber. The coal is ground to a fine powder and blown into the furnace, where it burns at high temperatures. These boilers are commonly used in coal-fired power plants due to their efficiency.

Fluidized Bed Boilers

Fluidized bed boilers suspend solid fuel particles in an upward flow of air, creating a fluid-like state. This allows for more efficient combustion and reduces nitrogen oxide emissions. They can burn a variety of fuels, including coal, biomass, and waste materials.

Circulating Fluidized Bed Boilers

Circulating fluidized bed (CFB) boilers are a type of fluidized bed boiler that circulates fuel particles through the combustion chamber and external heat exchangers for improved efficiency and fuel flexibility.

Gas Turbine Combined Cycle Boilers

Combined cycle boilers use a gas turbine to generate electricity and a heat recovery steam generator (HRSG) to produce steam from the turbine’s exhaust gases. This steam is then used to generate additional electricity, improving overall efficiency.

Biomass Boilers

Biomass boilers burn renewable biomass materials like wood chips, pellets, and agricultural residues to generate steam. They offer an environmentally friendly alternative to fossil fuel boilers and reduce carbon emissions.

 

Fuel Types for Power Plant Boilers

Coal

Coal is the most common fuel for power plant boilers. It’s available in various grades, from lignite to anthracite. However, coal combustion releases significant greenhouse gases and pollutants.

Natural Gas

Natural gas is a cleaner fuel compared to coal and is increasingly used in combined cycle power plants due to its efficiency and lower emissions.

Biomass

Biomass fuels include wood chips, pellets, agricultural residues, and dedicated energy crops. Biomass combustion is considered carbon-neutral, making it an attractive option for reducing emissions.

Waste Materials

Municipal solid waste, industrial waste, and agricultural residues can also be used as fuel in waste-to-energy boilers, reducing landfill waste and producing renewable energy.

Benefits of Modern Power Plant Boilers

  1. High Efficiency: Modern boilers achieve high efficiency levels through improved combustion technologies.

  2. Reduced Emissions: Advanced emission control systems significantly reduce sulfur dioxide, nitrogen oxide, and particulate matter emissions.

  3. Fuel Flexibility: Many boilers can burn a wide range of fuels, from coal and natural gas to biomass and waste materials.

  4. Reliability: Power plant boilers are designed for continuous operation, ensuring a reliable energy supply.

  5. Scalability: Boilers can be scaled to meet the energy demands of small to large power plants.

Challenges and Considerations

  1. Fuel Availability: Consistent fuel supply is essential for reliable power generation.

  2. Emission Regulations: Strict emission standards require advanced control systems.

  3. Maintenance: Boilers need regular maintenance to ensure safe and efficient operation.

  4. Initial Investment: High capital costs may deter investment in modern boiler technologies.

Boiler Efficiency Improvements and Emission Controls

Efficiency Improvements

  1. Supercritical and Ultra-Supercritical Steam Cycles: Higher steam temperatures and pressures improve efficiency.

  2. Heat Recovery: Use of economizers and air preheaters reduces fuel consumption.

  3. Combustion Optimization: Advanced control systems optimize combustion for maximum efficiency.

Emission Controls

  1. Flue Gas Desulfurization (FGD): Removes sulfur dioxide from flue gases.

  2. Selective Catalytic Reduction (SCR): Reduces nitrogen oxide emissions.

  3. Electrostatic Precipitators and Bag Filters: Remove particulate matter from flue gases.

 

Applications of Power Plant Boilers

  1. Utility Power Generation: Boilers generate electricity for national grids.

  2. Industrial Power Plants: On-site power plants supply energy to manufacturing facilities.

  3. Cogeneration: Combined heat and power (CHP) plants provide both electricity and process heat.

Selecting the Right Power Plant Boiler

Key Considerations:

  1. Fuel Type: Choose a boiler that matches the available fuel supply.

  2. Capacity: Ensure the boiler capacity meets the power plant’s energy demands.

  3. Efficiency: High-efficiency boilers reduce fuel consumption and emissions.

  4. Emission Controls: Select boilers with advanced emission control systems to meet regulatory standards.

Government Regulations and Incentives

Governments are promoting cleaner energy through regulations and incentives:

  • Emission Standards: Strict emission standards require power plants to install advanced pollution controls.
  • Carbon Pricing: Carbon taxes and emissions trading encourage a shift to cleaner fuels.
  • Renewable Energy Incentives: Subsidies and tax credits promote the adoption of renewable energy sources like biomass.

Power plant boilers are essential to meeting the world’s growing energy demands. They are central to reliable electricity generation, with modern technologies providing improved efficiency and reduced emissions. While challenges like fuel availability and stringent emission standards exist, advances in boiler technology and government incentives make power plant boilers a sustainable and reliable choice.

If your company needs to upgrade its power plant boiler, carefully assess your fuel supply, emission requirements, and energy demands. Investing in the right boiler technology can improve efficiency, reduce emissions, and ensure a steady energy supply.

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