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Refractory Material Firing Push Plate Kiln High Temperature Durability
Refractory Material Firing Push Plate Kiln High Temperature Durability
Refractory Material Firing Push Plate Kiln High Temperature Durability
Refractory Material Firing Push Plate Kiln High Temperature Durability
Specifications
Brand Name :
RUIYAO
Place of Origin :
CHINA
MOQ :
1
Price :
Negotiable
Payment Terms :
L/C, T/T
Supply Ability :
Negotiable
Description

Push Plate Kiln for Refractory Material Firing: High - Temperature Durability

1. Brief Overview

The push plate kiln designed for refractory material firing is a highly specialized industrial furnace. Refractory materials, by nature, are substances that can withstand extremely high temperatures without significant deformation, melting, or degradation. These materials are crucial in various high - temperature industrial processes, such as steelmaking, cement production, and glass manufacturing. The push plate kiln is engineered to subject these refractory materials to the intense heat necessary for their proper processing.
Structurally, the push plate kiln consists of several key components. The loading area is where the raw refractory materials, often in the form of bricks, pre - formed shapes, or granular materials, are placed onto the push plates. These push plates are typically made of high - temperature - resistant materials themselves, such as special alloys or advanced ceramics. They serve as carriers to transport the refractory materials through the kiln.
The heating zone is the heart of the kiln. It is equipped with powerful heating elements, which can be electric resistive heaters, gas burners, or other heating sources depending on the specific requirements of the refractory material and the scale of production. The heating zone is designed to reach and maintain temperatures that can range from 1200°C to over 1800°C. To ensure uniform heating, the heating elements are strategically arranged, and the kiln chamber is well - insulated. High - quality insulation materials, such as ceramic fiber blankets and refractory bricks with low thermal conductivity, are used to minimize heat loss to the surroundings. This not only improves the energy efficiency of the kiln but also helps in maintaining a stable high - temperature environment inside the chamber.
The unloading area is where the fired refractory materials are removed from the kiln. After passing through the heating zone, the refractory materials have undergone the necessary thermal treatment, which may include sintering, densification, or the formation of specific crystal structures. The continuous operation of the push plate kiln, with the steady movement of the push plates from the loading area to the unloading area, allows for a high - volume production of refractory materials. This makes it suitable for large - scale industrial applications where a consistent supply of high - quality refractory products is required.

Refractory Material Firing Push Plate Kiln High Temperature Durability

2. Features

2.1 High - Temperature Resistance

The most prominent feature of the push plate kiln for refractory material firing is its ability to withstand extremely high temperatures. The construction materials of the kiln, including the furnace lining, heating elements, and push plates, are carefully selected to endure the harsh thermal environment. For example, the furnace lining is often made of high - alumina refractory bricks or advanced ceramic fiber composites. These materials have high melting points and excellent thermal stability, ensuring that the kiln can operate continuously at high temperatures without structural failure.

2.2 Precise Temperature Control

To produce high - quality refractory materials, precise temperature control is essential. The push plate kiln is equipped with advanced temperature control systems. These systems use thermocouples and temperature controllers to monitor and adjust the temperature in different zones of the heating chamber. The ability to set and maintain specific temperature profiles allows for the customization of the firing process according to the requirements of different refractory materials. For instance, some refractory materials may require a slow heating rate to prevent cracking, while others need a rapid increase in temperature to achieve the desired phase transformation.

2.3 Large - Capacity Loading

This type of kiln is designed to handle large - sized and heavy refractory materials. The push plates are engineered to support the weight of the materials during the firing process. The loading area can be configured to accommodate different shapes and sizes of refractory products, whether they are standard - sized bricks or custom - made refractory components. This large - capacity loading feature enables high - volume production, meeting the demands of industries that rely on refractory materials in large quantities.

2.4 Energy - Efficiency

Despite the high - temperature operation, the push plate kiln is designed with energy - efficiency in mind. The well - insulated furnace chamber reduces heat loss, and the optimized heating system ensures that energy is used effectively. Some modern push plate kilns also incorporate waste heat recovery systems. These systems capture the heat from the exhaust gases and use it to pre - heat the incoming air or the raw refractory materials. By recovering and reusing this waste heat, the overall energy consumption of the kiln is reduced, making the production process more sustainable and cost - effective.

3. Applications

3.1 Steelmaking Industry

In the steelmaking industry, refractory materials are used extensively. The push plate kiln plays a crucial role in the production of refractory bricks and other components for steelmaking furnaces.

3.1.1 Furnace Lining Bricks

The lining of a steelmaking furnace is subject to intense heat, chemical corrosion from molten steel and slag, and mechanical stress. Refractory bricks fired in a push plate kiln are used to line the walls, roof, and bottom of the furnace. For example, magnesia - carbon bricks, which are widely used in the lining of electric arc furnaces, are fired in push plate kilns. The high - temperature firing process in the kiln helps to densify the bricks, improving their strength and corrosion resistance. The precise temperature control in the kiln ensures that the bricks have a uniform microstructure, which is essential for their performance in the harsh environment of a steelmaking furnace.

3.1.2 Tundish Refractories

Tundishes are used in the continuous casting process of steel to distribute the molten steel evenly to the molds. Refractory materials for tundishes, such as alumina - zirconia - carbon (AZS) refractories, are also produced using push plate kilns. These refractories need to have excellent thermal shock resistance and low porosity to prevent the penetration of molten steel. The firing process in the push plate kiln helps to achieve the desired properties of these tundish refractories, ensuring smooth and efficient continuous casting operations.

3.2 Cement Industry

The cement production process involves high - temperature reactions in rotary kilns. Refractory materials are used to line these rotary kilns to protect the steel shell from the high - temperature environment and to improve the energy efficiency of the kiln.

3.2.1 Rotary Kiln Lining

The lining of a cement rotary kiln consists of several layers of refractory materials. The inner layer, which is in direct contact with the hot cement clinker, is usually made of chrome - magnesite or spinel - containing refractory bricks. These bricks are fired in push plate kilns to enhance their refractoriness under load and their resistance to the chemical attack from the cement raw materials and clinker. The push plate kiln's ability to handle large - sized bricks and its precise temperature control make it suitable for producing the high - quality refractory linings required for cement rotary kilns.

3.2.2 Burner Blocks

Burner blocks in cement kilns are subjected to extremely high temperatures and the erosive action of the fuel flame. Refractory burner blocks, often made of high - alumina materials, are fired in push plate kilns. The firing process imparts the necessary hardness and thermal stability to the burner blocks, allowing them to withstand the harsh conditions in the kiln burner area and ensuring efficient combustion of the fuel.

3.3 Glass Manufacturing Industry

In the glass manufacturing industry, refractory materials are used in glass melting furnaces.

3.3.1 Furnace Superstructure Refractories

The superstructure of a glass melting furnace, which includes the crown, sidewalls, and ports, is lined with refractory materials. These refractories need to have high resistance to the corrosive action of the molten glass and the high - temperature gases in the furnace. Refractory products such as fused - cast AZS blocks, which are used in the crown and sidewalls of glass furnaces, are produced using push plate kilns. The firing process in the kiln helps to eliminate porosity and improve the density of these blocks, enhancing their resistance to glass corrosion and thermal fatigue.

3.4 Petrochemical Industry

In the petrochemical industry, high - temperature reactors and furnaces are used for various processes such as cracking, reforming, and combustion.

3.4.1 Reactor Linings

Refractory linings are used in petrochemical reactors to protect the reactor walls from the high - temperature and corrosive process fluids. Refractory bricks and castables made of materials like alumina - silica or silicon carbide are fired in push plate kilns. The firing process in the kiln improves the mechanical strength and chemical resistance of these refractory linings, ensuring the safe and efficient operation of the petrochemical reactors.

3.4.2 Furnace Insulation

Insulating refractory materials are used in petrochemical furnaces to reduce heat loss and improve energy efficiency. Materials such as ceramic fiber modules and lightweight refractory bricks are fired in push plate kilns. The kiln firing process helps to set the structure of these insulating materials, enhancing their thermal insulation properties and durability under the high - temperature conditions in petrochemical furnaces.

Refractory Material Firing Push Plate Kiln High Temperature Durability

4. FAQs

4.1 What is the maximum temperature that a push plate kiln for refractory material firing can reach?

The maximum temperature that a push plate kiln can reach depends on its design and the type of heating system used. Generally, these kilns can reach temperatures up to 1800°C or even higher. However, the actual maximum temperature for a specific kiln is determined by factors such as the refractory materials used in its construction, the heating capacity of the heating elements, and the requirements of the refractory materials being fired.

4.2 How long does it take to fire refractory materials in a push plate kiln?

The firing time varies depending on several factors. These include the type of refractory material, its size and shape, the desired final properties, and the temperature profile of the kiln. For example, some simple refractory bricks may be fired in a few hours, while more complex refractory components or materials with specific heat - treatment requirements may take 12 hours or more. The firing time is carefully optimized to ensure that the refractory materials achieve the desired quality and performance characteristics.

4.3 Can the push plate kiln be used for firing different types of refractory materials simultaneously?

In most cases, it is not recommended to fire different types of refractory materials simultaneously in the same push plate kiln. Different refractory materials may have different heating requirements, such as different heating rates, maximum temperatures, and holding times. Firing them together may result in one material not being properly processed while over - processing another. However, if the materials have similar thermal requirements, and the kiln is designed to handle such a situation, it may be possible to fire them simultaneously, but this requires careful planning and monitoring.

4.4 What are the common problems that may occur during the operation of a push plate kiln for refractory material firing?

Common problems include uneven heating, which can lead to inconsistent quality of the fired refractory materials. This may be caused by issues with the heating elements, such as burnout or improper installation. Another problem could be the wear and tear of the push plates and the furnace lining over time due to the high - temperature and mechanical stress. This can affect the operation of the kiln and the quality of the products. Additionally, problems with the temperature control system, such as inaccurate temperature readings or malfunctioning controllers, can also occur, leading to incorrect firing of the refractory materials. Regular maintenance, calibration of the temperature control system, and inspection of the kiln components can help prevent and address these issues.
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Refractory Material Firing Push Plate Kiln High Temperature Durability

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Product Detail
Brand Name :
RUIYAO
Place of Origin :
CHINA
MOQ :
1
Price :
Negotiable
Payment Terms :
L/C, T/T
Supply Ability :
Negotiable
Contact Supplier
Refractory Material Firing Push Plate Kiln High Temperature Durability
Refractory Material Firing Push Plate Kiln High Temperature Durability

Henan Ruiyao Intelligent Environmental Protection Co., Ltd

Verified Supplier
1 Years
henan, shangqiu
Since 2019
Business Type :
Manufacturer, Trading Company, Seller
Main Products :
Tunnel Kiln, Roller Kiln, Mobile Kiln
Employee Number :
50~100
Certification Level :
Verified Supplier
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