What Is LECA Rotary Kiln?
The LECA(light expanded clay aggregate) rotary kiln is a highly efficient piece of thermal equipment designed specifically for calcining raw materials such as fly ash, shale, and clay to produce lightweight expanded ceramsite (LECA). This equipment precisely controls the temperature (about 1200°C) to cause the raw materials to sinter and expand, producing porous, lightweight, and incredibly durable ceramsite products. Its low heat consumption, high rate of operation, steady operation, long kiln service life, large unit volume, and outstanding heat transfer efficiency are all advantages. It is the ideal instrument for calcination.
The LECA rotary kiln is composed of a coal injection pipe device, a rotary cylinder, a supporting device, a supporting device with retaining wheels, sealing devices at the kiln head and kiln tail, and other parts. Because of its remarkable performance and application, it is widely used in sectors such as environmental protection, horticulture, building materials, and construction.
Technical parameters
|
Diameter(m) |
Diameter(m) |
Capacity(m³/h) |
Inclination (%) |
Rotate speed(r/min) |
Rotate speed(r/min) |
Calcination temperature(℃) |
|
Φ1.25×18 |
Φ1.6×14 |
2.21-2.96 |
3.5-4 |
1-5 |
1-5 |
1100-1200 |
|
Φ1.55×20 |
Φ1.9×16 |
3.27-4.36 |
3.5-4 |
1-5 |
1-5 |
1100-1200 |
|
Φ1.8×22 |
Φ2.2×18 |
4.42-5.9 |
3.5-4 |
1-5 |
1-5 |
1100-1200 |
|
Φ2×24 |
Φ2.5×20 |
5.57-7.41 |
3.5-4 |
1-3 |
1.2-3.6 |
1100-1200 |
|
Φ3×20 Φ2.5×12 |
Φ3×22 |
9.85-13.13 |
3.5-4 |
1-5 |
0.9-2.7 |
1100-1200 |
Product Advantages
The highlights of our products
This LECA rotary kiln has many advantages. Welcome to purchase
Energy-efficient double-tube plug-in design
By integrating drying, preheating, and calcination, the nested construction of the calcination and preheating kilns increases thermal efficiency by 30% and lowers energy consumption by 25%.
Intelligent frequency conversion control
With a precisely controlled rotational speed (inclination of 3.5%–4%), the variable frequency speed regulation drive satisfies the calcination needs of various raw materials.
Multi-fuel compatible system
LECA Rotary Kiln supports a variety of heat sources, including biomass, natural gas, and coal, and fuel prices can be lowered by 15% to 20%.
Environmentally friendly and clean
Dust emissions are reduced by 60% thanks to fully enclosed negative pressure operation that comes standard with dust collection and desulfurization equipment.
Reliable product quality
When accurately regulated at 1200°C, LECA Rotary Kiln expands consistently and can produce ceramsite with particle sizes ranging from 0 to 25 mm.
Wide range of applications
It is suitable for various application scenarios such as water treatment filtration materials, lightweight concrete, construction aggregates, and horticultural plants.
Application of LECA
Light expanded clay aggregate is mostly made from clay, fly ash, or biological sludge. After that, these substances undergo high-temperature calcination and expansion. Low density, high strength, high water absorption rate, heat insulation, fire resistance, and earthquake resistance are some of its qualities.
Among other uses, it can be substituted for regular sand and gravel to make lightweight aggregate concrete. Additionally, it can be utilized as a permeable pavement material, an adsorbent, a water treatment filter material, a culture medium for soilless gardening and agricultural production, and a raw material for construction materials including hollow blocks and bridge decks.
How does a LECA Rotary Kiln work
The raw ingredients for the pre-treated block clay initially go into the drying kiln section, where they rotate to progressively produce homogenous particles ranging in size from 3 to 10 mm. A conveying device transports the dried particles into the calcination section, where they go through important physical and chemical changes.
The organic matter is fully broken down in the preheating zone at 400–800°C, the clay is melted and foamed by the high-temperature expansion zone at 1000–1200°C, and a fixed structure is finally formed in the stable zone at 900–1100°C.
The final products acquire the characteristic spherical or elliptical shapes as a result of the materials rotating with the cylindrical LECA rotary kiln body and being uniformly fired at high temperatures throughout the whole process. The product is quickly cooled by an effective cooling system after exiting the kiln and then stored.
FAQ
Q: Who is AGICO Cement?
A: AGICO Cement is a leading supplier of comprehensive cement engineering solutions with over 20 years of experience. Together with our subsidiary, Luoyang Building Materials Architectural Design & Research Institute (LCDRI), we have successfully delivered over 100 EPC projects worldwide, including advanced lightweight expanded clay aggregate (LECA) production lines.
Q: Does AGICO have a customized LECA rotary kiln solution?
A: At AGICO Cement, we know that each customer has unique production requirements. This is why we specifically offer you fully customized LECA rotary kiln solutions to meet your specific requirements. Our engineering team designed a double-shell structure system and optimized the drying and calcination processes to achieve the highest efficiency. We offer flexible fuel options, including coal, natural gas and biomass, to adapt to your local energy supply. Our kilns can be configured to produce precisely sized outputs, ranging from 0-5mm to 15-25mm aggregates, all of which are controlled by our advanced automated temperature regulation system to ensure consistent product quality.
Q: Which services are provided by AGICO?
A: For your LECA production project, AGICO offers full life cycle assistance. In order to optimize your factory setup, we perform comprehensive process design and feasibility studies as part of our professional pre-sale advice. Next, we create and produce premium kilns that adhere to stringent ISO requirements. Our technical staff offers on-site assistance during the installation procedure to guarantee proper commissioning. We will continue to offer you full after-sales support even after your kiln is placed into service. This includes maintenance schedules, the provision of authentic spare parts, and thorough operation training for your staff.
Q: How to make a quote request
A: It is easy to obtain a personalized quote for your LECA rotary kiln. Simply send us an email or use our website to get in touch, and give us some basic details about your project. Please let us know your chosen fuel type, projected production capacity (100, 200, or 500 tons per day), and any unique needs you may have for automation or pollution control. Within 24 hours of receiving your request, our skilled engineering and sales teams will assess your needs and offer you a comprehensive, cost-effective solution.
Q: Why Customers Choose AGICO?
A: Our comprehensive EPC turnkey competence, which encompasses every facet from initial design to final manufacturing, sets AGICO Cement apart in the industry. Our energy-efficient kiln designs are designed to maximize output while reducing operational expenses. We deliver dependable solutions and international best practices to every project, having a track record of successful installations in more than 30 countries. Partnering with AGICO gives you more than just equipment; it also gives you a reliable advisor who is dedicated to the long-term prosperity of your LECA production company.
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