Enhancing Industrial Efficiency with Modern Coal Fired Burners

All Alltech Asphalt Plants are Equipped with an option to use Coal fire burner instead of LDO/FO burner to maximise savings on fuel cost.

Introduction

Alltech’s coal-fired burners are engineered to deliver the high temperatures essential for efficient asphalt production. Designed for integration with asphalt batch mix plants, our burners utilize pulverized coal to produce intense, consistent heat. This high-performance heating solution ensures optimal drying and heating of aggregates, enhancing the overall quality of your asphalt mix. With advanced control systems for precise temperature management and efficient fuel use, Alltech’s coal-fired burners provide a reliable and effective solution for your asphalt production needs.

Dual Burner Changeover Track in ASPHALT PLANT.

Alltech’s Coal Fire Burner comes with an easy changeover track, offering a dual burner option – Diesel Fired Burner and Coal Fired Burner.

Transitioning from liquid fuel to coal fire takes just 30 minutes, minimizing downtime.

The Significance of Coal Fired Burners

The Pulverized Coal Combustion System is a vital component in asphalt batch mix plants, designed to efficiently burn pulverized coal to generate the high temperatures required for asphalt production. The system comprises several key elements working together to ensure optimal performance:

System Components

Rotary Furnace

The core of the system where the pulverized coal is burned. It features an external and an internal damper regulator for precise control of airflow and combustion efficiency.

Coal Pipe

Transfers the pulverized coal from the mill to the rotary furnace.

Pulverizer

Crushes raw coal into fine powder. The coal is first loaded into a temporary storage bin and then transported via a screw conveyor to the pulverizer.

Screw Conveyor

Moves raw coal from the storage bin to the pulverizer for grinding.

Coal-Fired Temporary Storage Bin

Stores raw coal before it is pulverized and fed into the furnace.

Igniter

Used to ignite the fuel and initiate the burning process within the furnace.

Oil Supply Device

Injects fuel oil into the furnace to assist in igniting the pulverized coal.

Control Unit (LCP of Asphalt Plant)

Manages the overall operation of the combustion system, including temperature control and burner settings.

Burning Coal Temporary Storage Bin

Holds pulverized coal before it enters the combustion chamber.

Furnace Fan

Blows air into the furnace to mix with the coal powder, enhancing the combustion process and ensuring even heating.

Working Principle

Raw coal, with a particle size of no more than 5 mm, is first loaded into the temporary storage bin. It is then conveyed to the pulverizer, which grinds the coal into a fine powder. This pulverized coal is transported via the coal pipe to the rotary furnace.

Before the pulverized coal is introduced into the furnace, the oil supply device injects fuel oil. The igniter ignites the fuel, which in turn ignites the pulverized coal. Once the coal reaches a stable burning state, the oil supply is ceased. The furnace fan circulates air through the furnace, creating a high-temperature flow that thoroughly mixes with the coal powder and generates the necessary heat.

The system includes two damper regulators: an external damper for regulating external air volume and an internal damper for adjusting the air volume within the furnace. These dampers are adjusted to control the combustion process, ensuring efficient and effective burning of the pulverized coal.

By maintaining precise control over the combustion conditions, the pulverized coal combustion system ensures consistent and efficient heating, contributing to high-quality asphalt production.

Common Challenges with Coal-Fired Burners

Despite their importance, coal-fired burners come with their fair share of challenges. Some of the common issues faced by users include:

Inefficient Fuel Combustion

Older coal-fired burners may suffer from inefficient fuel combustion. This poor performance results in higher fuel consumption and therefore increased operating costs; This is also an issue that needs attention.

Environmental Concerns

The environmental impact of coal-fired burners, particularly emissions, has raised significant concerns in recent years. The need to address these environmental issues is becoming increasingly urgent.

The Evolution of Coal Fired Burner Technology

To fully appreciate the significance of coal-fired burners, it’s essential to understand the evolution of their technology.

Exploring Different Types of Coal Fired Burners

Various types of coal-fired burners exist, each with its unique characteristics and applications. These include pulverized coal burners, fluidized bed burners, and cyclone burners, all designed to meet specific industrial requirements.

Ensuring Longevity: Maintenance Tips

The longevity and efficiency of coal-fired burners depend on proper maintenance. Regular cleaning, inspection, and calibration are essential practices to prevent issues and maintain optimal performance.

Addressing Efficiency and Environmental Concerns

While coal-fired burners face challenges, modern technology and maintenance practices offer solutions.

A Comprehensive Look at Problem-Agitate-Solution (PAS)

We will adopt a Problem-Agitate-Solution (PAS) framework to address the common issues associated with coal-fired burners.

Problem: Inefficient Fuel Combustion

Agitate: Rising Energy Costs
The continual rise in energy costs has a direct impact on the profitability of businesses relying on coal-fired burners.
Solution: Upgrading Your Burner
To tackle inefficiency and soaring energy costs, upgrading to a modern coal-fired burner is a viable solution. Newer models offer improved combustion efficiency, significantly reducing fuel consumption and operational expenses.

Problem: Environmental Concerns

Agitate: Regulatory Compliance
Stringent environmental regulations require industries to meet stringent emission standards, posing a challenge for coal-fired burner users.
Solution: Eco-friendly Burner Choices
To address environmental concerns, consider adopting eco-friendly coal-fired burners. These units are specifically designed to minimize emissions and help businesses comply with regulations, striking a balance between industrial efficiency and environmental responsibility

Conclusion

In conclusion, coal-fired burners continue to play a vital role in various industrial processes. Their ability to provide essential heat for steam generation and heat treatment is unparalleled. Despite common challenges, modern technology and maintenance practices offer efficient and eco-friendly solutions. Staying updated and transitioning to environmentally responsible options enables businesses to reap the benefits of coal-fired burners while addressing industry demands and regulations.

Frequently Asked Questions

Yes, coal-fired burners are still widely used in various applications, including steam generation and heat treatment.

Common problems include inefficient fuel combustion and environmental concerns due to emissions.

Upgrading to a modern coal-fired burner can significantly enhance combustion efficiency and reduce energy costs.

Various types include pulverized coal burners, fluidized bed burners, and cyclone burners, each serving distinct industrial needs.

Regular cleaning, inspection, and calibration are essential for maintaining your burner’s performance.

Coal-fired burners can have emissions that affect the environment. To mitigate this, consider eco-friendly burner choices designed to reduce emissions.

Yes, many regions have regulations regarding emissions, and compliance with these standards is essential.

Eco-friendly coal-fired burners are designed to balance efficiency and environmental impact, offering a more sustainable solution.

While there is an initial investment, the long-term savings from increased efficiency often outweigh the upfront costs.

In some cases, retrofitting may be possible to enhance the environmental performance of your existing burner. Consulting experts is advisable to explore retrofitting options.

reclaimed asphalt pavement

Any questions you want to ask?

We will be happy to answer your questions.

Testimonials

What Our Clients Say?

Request A Quote.