Fly Ash Silo
Effective Volume: 100-18000m3 (customizable)
Features: EPC project
Diameter: 4-30m (customizable)
Height: >8m (customizable)
Fly ash is the fine residue left after pulverized coal is burned at high temperatures in the boilers of coal-fired power plants. It appears as a gray powder and is considered a solid waste. However, due to its unique physical and chemical properties, it has now been widely reused as a valuable resource material in many fields, turning waste into wealth. The applications of fly ash are extensive, including concrete mixing, cement production, wastewater treatment, soil improvement, refractory material production, fertilizer manufacturing, etc.
With such widespread use, storage issues naturally follow. Because of its distinctive physical and chemical characteristics and the large storage demand, fly ash is difficult to store. If stored in traditional open-air stockpiles, it poses high management and environmental risks, such as dust pollution, water contamination, caking of fly ash, and excessive land occupation. In contrast, adopting modern storage methods such as sealed silo storage can ensure safe and efficient handling.
Storage Characteristics of Fly Ash
Extremely Fine Particle Size: The vast majority of fly ash particles are smaller than 0.045 mm. Any handling, transportation, or exposure to strong winds may cause dust dispersion, leading to serious air pollution.
High Flowability: In a dry state, fly ash particles are very smooth and exhibit excellent flowability. This results in a very small natural angle of repose during piling, making it difficult to form a stable heap.
Moisture Sensitivity: When exposed to water, fly ash quickly coagulates, losing its flowability and even hardening into solid masses. This creates significant challenges for subsequent handling and transportation.
Potential Chemical Activity: Fly ash is alkaline and may contain small amounts of heavy metals. If stored improperly, leachate generated after water infiltration can cause soil and groundwater contamination.
Large Volume: Coal-fired power plants produce enormous quantities of fly ash, often measured in tens of thousands of tons. This requires large-capacity storage facilities or extensive storage sites.
AGICO is a professional manufacturer of fly ash storage silos, dedicated to providing customers with safe and customizable storage solutions. We produce various types of fly ash steel silos, including bolted steel silos, spiral steel silos, and welded steel silos, along with supporting systems such as automated monitoring systems, dust collection systems, and conveying systems. If you are interested in our silos, please contact us, and we will provide you with a detailed quotation. Fly Ash Processing Plant>> Fly Ash Handling System>>
AGICO Hot-sale Fly Ash Silos
AGICO sells fly ash bolted steel silos, spiral steel silos, and welded steel silos with customized designs and capacities. Customers can make purchases based on their needs.
Welded Steel Silo
Dimension & Capacity: customizable
Construction Process: After steel plates are cut in the factory or on-site, they are assembled into a silo by welding. Typically, the silo is formed section by section through circular seam welding.
Advantages: With an overall welded structure, it offers excellent sealing performance, strong corrosion resistance, and high-pressure-bearing capacity. It is particularly suitable for large-scale and high-pressure applications. Its diameter, height, and capacity can be built to very large sizes.
Disadvantages: High consumption of materials, a large amount of welding work, long construction time, and relatively high manufacturing and labor costs. Moreover, once built, it cannot be relocated.
Applications: Well-suited for large coal-fired power plants, building material bases, and other fixed sites that require long-term, large-scale storage of fly ash.
Spiral Steel Silo
Dimension & Capacity: customizable
Construction Process: Using a specialized Lipp forming machine, galvanized or stainless steel plates are spirally folded and wound layer by layer on-site.
Advantages: With mechanized construction, installation efficiency is extremely high, and a large silo can be completed within just a few days. Material utilization is high, overall cost is competitive, sealing performance is excellent, and the appearance is aesthetically pleasing.
Disadvantages: Compared with large welded silos, its diameter and height are somewhat limited, and its pressure-bearing capacity has an upper limit (though still fully sufficient for fly ash storage). The plate thickness used is usually less than that of welded silos.
Applications: This is the most widely used type of fly ash storage silo. It is particularly suitable for medium-scale power plants, cement plants, and concrete batching plants, offering the best balance between cost and performance.
Bolted Steel Silo
Dimension & Capacity: customizable
Construction Process: Steel plates are pre-rolled in the factory (often with corrugations to increase strength) and pre-punched with holes. They are then transported to the site and assembled using high-strength bolts.
Advantages: The silo can be quickly dismantled and relocated, making it convenient for relocation and reuse. It is especially suitable for temporary projects or applications requiring mobility. All components can undergo high-quality galvanizing or painting for corrosion protection in the factory, ensuring reliable quality control.
Disadvantages: Its sealing performance is relatively weaker. Although sealing strips are used, they generally cannot match the airtightness of welded silos or Lipp silos, and special treatment is required for applications with very high airtightness demands. In addition, bolts may loosen over time, requiring regular inspection and maintenance.
Applications: Suitable for temporary storage, transitional projects, or situations where future relocation is anticipated. Examples include mobile batching plants and construction sites with short project durations.
Specification
| AGICO Fly Ash Storage Silo Specification | |||||||||||||||||||||
| Diameter(m) | 4 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 20 | 22 | 24 | 25 | 26 | 28 | 30 |
| Volume(m3) | Height(m) | ||||||||||||||||||||
| 100 | 10 | ||||||||||||||||||||
| 200 | 8 | ||||||||||||||||||||
| 400 | 15 | 11 | |||||||||||||||||||
| 500 | 14 | 10 | |||||||||||||||||||
| 600 | 12 | 10 | |||||||||||||||||||
| 800 | 16 | 13 | |||||||||||||||||||
| 1000 | 16 | 14 | |||||||||||||||||||
| 1200 | 16 | ||||||||||||||||||||
| 1500 | 20 | 16 | |||||||||||||||||||
| 2000 | 22 | 18 | 16 | ||||||||||||||||||
| 2500 | 23 | 20 | 17 | ||||||||||||||||||
| 3000 | 23 | 20 | 17 | ||||||||||||||||||
| 3500 | 23 | 20 | 18 | ||||||||||||||||||
| 4000 | 23 | 20 | 18 | ||||||||||||||||||
| 5000 | 25 | 23 | 20 | ||||||||||||||||||
| 6000 | 27 | 24 | 20 | ||||||||||||||||||
| 7000 | 28 | 23 | 20 | ||||||||||||||||||
| 8000 | 26 | 22 | 18 | ||||||||||||||||||
| 10000 | 28 | 23 | 21 | ||||||||||||||||||
| 13000 | 30 | 27 | 25 | ||||||||||||||||||
| 15000 | 30 | 25 | 22 | ||||||||||||||||||
| 18000 | 30 | 26 | |||||||||||||||||||
How to Choose a Fly Ash Silo?
If you are unsure which type of silo you need, you can make a decision by comprehensively evaluating the following factors. Alternatively, you can contact us directly, and we will provide a detailed solution and quotation tailored to your requirements!
Storage Capacity: How much effective volume is required?
Project Duration: Is it a permanent facility, or a temporary/semi-temporary one?
Investment Budget: Considerations of initial investment and long-term maintenance costs.
Site Conditions: Is there sufficient space and suitable ground conditions for installing a large fixed silo?
Process Requirements: How high are the requirements for sealing performance, discharge efficiency, and arching prevention?
| Characteristics | Welded Silo | Lipp Silo | Bolted Silo |
| Main Material | Steel plate | Galvanized/stainless steel coil | Prefabricated corrugated steel plate |
| Sealing Performance | Excellent | Very good | Good |
| Structural Strength | Highest | High | High |
| Construction Speed | Slow | Very fast | Fast |
| Construction Cost | High | Medium | Medium |
| Mobility | Not movable | Basically not movable | Detachable and relocatable |
| Capacity Flexibility | Customizable to ultra-large capacity | Large capacity | Large capacity |
Why Choose AGICO Fly Ash Storage Silo
Engineering Consultation
Engineering Design
Equipment Manufacturing
Project Construction
Installation & Commissioning
Operations Management
Excellent Structural Design
Scientific design and careful selection of materials ensure that the silo can safely withstand the static and dynamic lateral pressures of fly ash, preventing serious accidents such as collapse or bulging. At the same time, it provides good resistance to wind and seismic forces.
Low Overall Investment Cost
Steel silos have low foundation construction costs and relatively flexible ground requirements. Their construction cycle is very short, with minimal daily maintenance needed. A 10,000-ton steel silo can be built and put into operation within 1–2 months, helping customers recover their investment quickly.
High Degree of Automation
AGICO silos use efficient fluidization systems and multi-point discharge devices to ensure smooth and uniform material flow with no dead zones, achieving a clearing rate of over 95%. They are equipped with a fully automated control system that manages feeding, level monitoring, discharge, and dust removal.
Excellent Corrosion Resistance
The silo can be coated with high-performance anti-corrosion materials, such as hot-dip galvanizing. AGICO provides customized corrosion protection solutions based on the local climate and material characteristics, greatly extending the service life of the silo—up to 20–30 years.
