Boiler Fixed Grate

Boiler Fixed Grate For Sale At Best Price

  • Durability, High temperature resistant
  • Reasonable structure, compact layout
  • Efficient combustion,
  • Convenient slag removal
  • Ensure warranty and technical support
  • Factory Price


The boiler fixed grate is typically a strip or plate-shaped component that is securely installed at the bottom of the furnace or combustion chamber with the help of a surrounding frame. As the basic boiler equipment component, the primary purpose of fixed grate in boiler is to provide support for the fuel, ensuring that it is effectively burned within the boiler. By securely holding the fuel in place, the fixed grate promotes complete combustion and efficient utilization of the fuel’s energy in the boiler system.

EPCB boiler fixed grate is constructed using high-temperature resistant cast iron material, which ensures its durability and ability to withstand extreme heat conditions. This carefully chosen material is specifically designed to withstand the intense temperatures generated within the boiler system without deformation or damage. The use of high-temperature resistant cast iron enhances the longevity and reliability of EPCB fixed grate boiler, ensuring its durability over an extended period of operation. This durability contributes to the overall performance and efficiency of the boiler, minimizing maintenance requirements and providing long-term cost savings.

1. What Is A Boiler Grate?

A boiler grate, also known as wood furnace grate, coal fired grate, is an essential component in a boiler or industrial furnace that plays a crucial role in the combustion of solid fuel. It is designed to securely hold the solid fuel, such as coal or biomass, and facilitate efficient burning. The grate typically consists of two main parts: the frame and the grate plates. The grate plates are commonly made of high-quality cast iron, which is known for its durability and heat resistance.

When assembled, the grate plates are positioned in a way that maintains necessary ventilation gaps between them. This allows for the proper flow of air, essential for combustion, through the fuel layer. Additionally, a separate ventilation chamber is often incorporated beneath the grate, which can be used to regulate the volume of air entering the fuel layer through the gaps.

After the fuel is burned, the resulting ash is either manually or mechanically discharged from the grate. This ensures the continuous operation of the combustion process and prevents the accumulation of ash that could hinder the efficiency of the boiler.

There are several types of boiler grates, including fixed, mobile, reciprocating, vibrating, and bottom-feeding grates. Each type has its own advantages and is chosen based on the specific requirements of the boiler system and the type of fuel being used.

A boiler grate is a critical component that holds solid fuel and enables efficient combustion. Its design and construction, including the use of cast iron plates, ventilation gaps, and ash discharge mechanisms, contribute to the successful operation and efficiency of the boiler or industrial furnace.

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2. What Are The Different Types of Grates In Boilers?

In boiler systems, various types of grates are used depending on the specific requirements and fuel characteristics. The three most common types of grates found in boilers are fixed grates, moving grates, and reciprocating grates.

2.1 Fixed Grate Boiler

Fixed grates are composed of strip or plate-shaped grate pieces that are fixed and installed at the bottom of the furnace or combustion chamber using a surrounding frame. These grates require manual addition of coal and periodic removal of slag, making them labor-intensive and less economically efficient. They are suitable for small-capacity furnaces, such as industrial boilers with an evaporation capacity of less than 0.5 tons/hour.

2.2 Moving Grate Boiler

Moving grates can be further categorized into chain-belt type and chain type grates. In chain-belt grates, the grate surface itself acts as the chain belt, while in chain-type grates, the grate pieces are fixed on brackets or supports on the upper part of the chain. Sprockets drive both types of grates, slowly moving the grate pieces. Coal is evenly distributed onto the grate from a coal hopper, and the thickness of the coal seam is adjusted using a coal gate. As the grate moves backward, the coal ignites, burns, and eventually burns out. Some moving grate boilers do not use a coal hopper but rely on a coal thrower to throw the coal at the rear of the grate as it moves forward. Moving grates offer reliable operation, stable combustion, and wide fuel adaptability, making them widely used in industrial boilers.

2.3 Reciprocating Grate Boiler

Reciprocating grates consist of fixed grate pieces and reciprocating movable grate pieces. They come in two types: stepped and horizontal. The movable grate pieces move back and forth, gradually pushing the coal seam to the rear for combustion. Reciprocating grates have better adaptability to different coal types and are a small mechanized grate developed from fixed ladder grates. They are characterized by their simple structure, easy manufacturing, low metal consumption, and effective smoke and dust removal. Reciprocating grates are commonly used in small industrial boilers and are considered promising combustion equipment.

The different types of grates used in boilers include fixed grates, moving grates (chain-belt and chain type), reciprocating grates (stepped and horizontal), and vibration grates. Each type offers unique features and advantages suited to specific boiler and fuel requirements.

3. What Is A Fixed Boiler Grate?

A fixed grate boiler refers to a type of boiler where the grate, which is a component responsible for supporting and combusting fuel (such as coal, wood, or biomass), is stationary or fixed in its position within the combustion chamber. The fuel is placed on top of the grate, and combustion occurs as air is forced through the grate, supplying oxygen to the burning fuel.

Fixed grate boilers are commonly used in industrial settings for their simplicity and reliability. They are typically suitable for solid fuels and are relatively easy to maintain compared to more complex boiler designs.

Fixed grate boilers can handle a wide range of solid fuels efficiently, making them versatile for various industrial applications. However, they may have limitations in terms of efficiency and adaptability to different fuel types compared to more advanced boiler designs like fluidized bed boilers or stoker-fired boilers.

The choice of boiler design depends on factors such as the type of fuel available, required output, efficiency considerations, and operational preferences.

High temperature resistant cast iron material, durable. The grate is in strip or plate shape, which is fixed on the bottom of furnace or combustion chamber by surrounding frame.

The boiler fixed grate is generally in the shape of strips or plates and is fixed and installed at the bottom of the furnace or combustion chamber by the surrounding frame. This type of grate can only be manually added with coal and slag removed at regular intervals, so the operation is labor-intensive and the economical combustion effect is also poor. It is only suitable for small-capacity furnaces such as industrial boilers with an evaporation capacity of less than 0.5 tons/hour.

4. What Is The function Of Grate In a Boiler?

The function of a grate in a boiler is essential for the efficient burning of solid fuels like biomass or coal. Grates are installed in solid fuel boilers to support the fuel and facilitate the combustion process. They are designed to allow the passage of air through the fuel bed, ensuring proper oxygen supply for combustion. This air flow helps in the efficient burning of the fuel, releasing heat energy that is then transferred to the boiler’s water or other fluids. The grate acts as a platform for the solid fuel, preventing it from falling through and providing stability during the combustion process. By enabling the passing of air, the grate ensures that the fuel burns evenly and completely, maximizing the boiler’s efficiency and heat output. In summary, the grate plays a crucial role in solid fuel boilers by promoting effective fuel combustion through the regulation of air flow.

steam boiler fixed grate for sale
high efficiency fixed grate steam boiler

5. What Are Advantages Of EPCB Boiler Fixed Grate?

EPCB fixed grate offers advantages such as durability, efficient combustion, convenient slag removal, and comprehensive warranty and technical support. These features contribute to the overall performance and reliability of the boiler system.

5.1 Durability & High temperature resistant

The fixed grate is made of high-temperature resistant cast iron material, ensuring its durability and ability to withstand extreme heat conditions. This enhances the longevity of the grate.

5.2 Efficient Combustion

The reasonable structure and compact layout of the fixed grate promote the full combustion of fuel. It is specifically designed for lump fuel, reducing coal leakage and improving ventilation efficiency. This results in efficient and effective fuel combustion.

5.3 Convenient Slag Removal

The design of the fixed grate takes into account the problem of slag removal. Manual slag removal is made more convenient, allowing for longer operating times without the need to stop the furnace for slag removal. This improves operational efficiency and reduces downtime.

5.4 Ensured Warranty and Technical Support

EPCB Boiler provides a one-year warranty for their fixed grates. Additionally, experienced technicians offer online installation guidance, ensuring proper installation. They are also available to answer any follow-up questions and provide free technical consulting services during the use period.

About EPCB Boiler

As the leading industrial boiler manufacturer and supplier, EPCB Steam Boiler delivers complete line of best quality products and solutions to worldwide customers.

If you have any problems or inquiries, don’t hesitate to contact us.

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