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AGICO Cement International Engineering Co., Ltd. is a leading company in China's building materials machinery industry. Founded in 1997, the company is based in a 66,000-square-meter industrial park, with 30,000 square meters of modern workshop space. It has a registered capital of 81.34 million yuan and employs 230 staff, including 42 experienced technical professionals with mid to senior-level qualifications.

Lithium Battery Recycling Rotary Kiln
AGICO's lithium battery recycling rotary kiln is characterized by superior quality, high automation, low energy consumption, and environmentally sustainable operation.
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Single Shaft Kiln
Our company's single shaft kiln meets international certification standards, has a low investment cost, is easy to maintain and operate, and is suitable for small and medium-sized lime production.
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Double Beam Lime Kiln
Our company's double beam lime kiln holds a national patent certificate, with a daily output of 100 to 600 tons. It can operate stably and produce flexibly, and has been widely applied in major steel industries across the country.
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Vertical Kiln
Our company supplies various styles of vertical kilns, with a wide output range (50-1200 TPD), stable product quality, convenient operation, easy installation and maintenance, and is widely used in cement, chemical and other fields.
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Shaft Lime Kiln
AGICO CEMNET is a professional supplier of cement manufacturing machine. We supply excellent shaft lime kiln equipment to global customers with complete models, full package service and superior quality.
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PFR Kiln
Our PFR kiln is a double-cylinder kiln with a co-current heat storage structure design. It is very effective and energy-efficient, and it produces high-quality products with significant economic benefits.
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Horizontal Lime Kiln
AGICO CEMENT focuses on designing efficient and advanced horizontal lime kiln equipment with adjustable output and stable operation.
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Fercalx Kiln
AGICO's Fercalx Kiln features a dual-beam design for efficient and uniform lime calcination. It ensures high activity, low energy use, and supports multiple fuels. Ideal for steel and chemical industries.
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Double Shaft Lime Kiln
Our doubl shaft lime kiln adopts parallel flow heat storage technology, featuring low heat consumption, high activity, environmental friendliness and high efficiency. It has a daily output of 300 to 800 tons and is widely used in the
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Annular Shaft Kiln
Our company supplies annular shaft kilns that can operate continuously for 48 weeks. They feature low heat consumption, simple structure and low failure rate, and are widely used in the metallurgy, chemical, cement, papermaking and
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Ac Shaft Kiln
AGICO's ac shaf kiln is an automated AC shaft kiln, mainly used in the calcination process of materials such as lime and cement. It requires a small investment and has a low cost. It is mainly suitable for small and medium-sized cement
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Vertical Cement Kiln
AGICO's Vertical Cement Kiln is an efficient and compact kiln designed for cement production. It features a vertical structure that saves space and ensures uniform heating. Ideal for small to medium-scale plants, it offers easy operation,
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Why choose us

Our Certificate
The company has passed ISO, CE, picture: ISO1, ISO2, AAA, ce, CQC, PT quality management system certification and has independent import and export rights.

Production Market
Our products are sold across 27 provinces in China and exported to countries such as Brazil, Angola, Russia, Vietnam, and Mongolia, thanks to our independent import and export rights.

Quality Assurance
In terms of quality assurance, the company strictly follows the standards and norms of the industry quality system. Adopt industry-leading testing equipment to ensure product quality and good reputation.

Service Advantages
We provide market analysis, demand assessment, equipment selection guidance, and project design to ensure the equipment meets your specific needs.including installation guidance, maintenance, spare parts supply, training, and troubleshooting services to ensure long-term operational success.

Vertical Lime Kiln

The vertical lime kiln is also called shaft lime kiln and vertical shaft lime kiln. The kiln body of the vertical lime kiln is vertical. It is a calcination process equipment with a long history and mature technology. The raw materials are mainly limestone or dolomite, etc. The raw materials enter the kiln from the top. As the temperature rises, chemical reactions occur, and the final products are discharged from the bottom of the vertical lime kiln. It can complete the comprehensive mechanized feeding, calcining, crushing, and discharging operations. There are many choices of fuels to provide high temperatures, and coal or coke are the most commonly used ones, among which coal has low cost and high calorific value.

Capacity (t/d)	50	100	150	200	300	400
Major equipment	Main supporting equipment models and technical and economic indicators
Distributor	BL-1	BL-2	BL-2	BL-3	BL-3	BL-4V
Shaft kiln	60m³	150m³	200m³	250m³	400m³	500m³
Kiln section form	Round
Ash machine	WF-1	WF-2	WF-2	WF-3	WF-4	WF-5
Calcination temperature/℃	1100±50
Energy consumption index/(kCal/kg lime)	950±50
Power consumption index/(kW·h/t lime)	25±5
Limestone: lime	1.6~1.75:1
Lime burning rate/%	≤13
Lime activity/ml	220~280 (depending on the composition of limestone)
Ash temperature/℃	Ambient temperature +60
Granularity of limestone entering the kiln/mm	30~80/80~120
Emission concentration/(mg/Nm3)	≤30
Number of working days per year/day	≥340
Overhaul cycle/ year	3~5
Number of operators/(person/class)	2
Applicable fuel	Lump anthracite, lump coke, lump petroleum coke, coke oven gas, semi-coke furnace gas, converter gas, blast furnace gas, calcium carbide furnace gas, etc.

Features of Vertical Lime Kiln

This kind of kiln adopts intelligent centralized control system for material feeding, ash unloading and operation control.

Less under-fired and over-fired materials, stable product quality and high calcium oxide content, can produce high-quality lime.

All operations are simple and easy, and one operator per shift can ensure the operation of the lime kiln, which greatly improves labor productivity.

Monitor the calcination process of the shaft kiln in terms of ignition, batching, material distribution, firing zone, material discharge, air supply, etc. to ensure that all finished products have a high firing rate

Advantages of Vertical Lime Kiln

Energy Saving And Efficient

Vertical kilns are divided into preheating zone, calcination zone, and cooling zone. The exhaust temperature of the flue gas is only 170-300 ℃.

Good Insulation Performance

Kiln skin is constructed with four layers of refractory materials, which has a significant insulation effect. Temperature of the kiln skin is only about 60 ℃ .

Strong Durability

Material reduces collisions with refractory materials through gravity settlement, and the service life of refractory materials can reach 6-10 years.

Wide Fuel Adaptability

Multiple fuels can be used, including lump coal, coke, natural gas, coke oven gas, blast furnace gas , to flexibly meet customer needs.

Small Footprint

Compact design, vertical layout, and single bucket elevator loading significantly reduce land requirements.

Strong Economy

The steel structure of the kiln body is easy to process and install, with low difficulty in laying refractory materials and low investment costs.

Types of Vertical Lime Kilns

Vertical Shaft Lime Kilns: This particular vertical lime kiln design is the most popular of them all. It's basically a massive stone or brick tower with columns that are vertical and circular.

Mixed-feed Vertical Shafts: This type of vertical shaft lime kiln is kind of like the regular vertical shaft lime kiln – the only difference being that it has layers of fossil fuels, coal, or biomass in it. This may also be accompanied by layers of lime stones.

Chamber Kilns: Chamber kilns are also known as intermittent kilns because they always operate in cycles. The whole process involves charging the kiln with raw material, followed by heating, then finally cool down and extraction. The chamber kiln functions quite similarly to the vertical shaft lime kiln. The main difference between it and the vertical lime kiln is the horizontal chamber configuration.

Horizontal Lime Kilns: In terms of operation, horizontal lime kilns work just like the vertical lime kiln. However, due to the horizontal configuration, it becomes quite difficult for the kiln to draw the products of combustion and even charge/discharge materials.

Water treatment facilities

Cement industry

Cement production requires a high quantity of quicklime, which is the primary raw material for calcium. Vertical lime kilns are used to calcine limestone into quicklime. The quicklime is then mixed with other materials and ground into cement.

simulator

Dissolved calcium hydroxide (or calcium hydrate) is produced by hydrated lime vertical kilns. These products are used to adjust the pH of water, remove impurities, and prevent corrosion in water treatment systems.

Metallurgical industry

A hydrated lime vertical kiln can produce hydrated lime that meets the metallurgical industry's standards. Hydrated lime can be used as a flux in smelting processes to remove impurities and improve the quality of metals.

Soil stabilization

Hydrated lime can improve soil stability and load-bearing capacity in civil engineering projects. Whether the soil is too wet, loose, or unstable, hydrated lime can help to strengthen and modify the soil properties.

Paper and pulp production

Lime is an essential material for producing pulp and paper. It is used to process cellulose fiber, remove inorganic materials, and adjust the pH during production. Vertical lime kilns can produce a continuous supply of lime for the paper and pulp industry.

Carbon capture

Sophisticated vertical lime kilns are also floodlit carbon capture technology. They can capture carbon dioxide produced during the calcination reaction and store or utilize it, helping to reduce carbon emissions and mitigate climate change.

Working Principle of Vertical Lime Kiln

Vertical lime kiln is a fully steel structure vertical cylindrical equipment that uses the gravity of materials to descend and the upward flow of hot gas to exchange heat, efficiently firing limestone. Limestone is added from the top of the kiln, and after preheating, calcination, and cooling, it is finally discharged from the bottom of the kiln.

Preheating zone
Using the heat from flue gas to heat the material from ambient temperature to near calcination temperature.

Calcination zone
The high temperature generated by fuel combustion heats the material to above 900 ° C, releasing carbon dioxide and generating calcium oxide (quicklime).

Cooling zone
The calcined material exchanges heat with cold air to complete the cooling process, while preheating the air as a combustion supporting gas enters the calcination zone.

The vertical height and proportions of each area have been precisely designed to ensure a thorough and stable calcination process. Modern technology enables it to effectively utilize cheap or waste energy sources (such as converter gas, blast furnace gas, calcium carbide furnace tail gas, etc.), achieving energy conservation, emission reduction, and turning waste into treasure.

The design forms of vertical lime kilns include single vertical kilns, circular kilns, and thermal storage kilns, all of which are based on the principle of countercurrent heat exchange and continuously optimize energy efficiency.

productcate-1264-366

How to choose vertical lime kilns

Focus on the quality of the kiln
The quality of the vertical lime kiln has a great impact on performance, productivity, and durability. Thus, buyers should choose vertical lime kilns made with high quality, robust materials. Go for those designed and engineered by reputable manufacturers with a proven track record. It also helps to read reviews and get feedback from other users. Test the kiln to see how efficient and productive it can get before buying in bulk.

Consider the lime kiln's efficiency
Lime kilns have different levels of energy and operation efficiency. More efficient kilns produce more lime while using less energy. Thus, choose a vertical kiln with high efficiency. This helps to reduce production costs, environmental impact, and energy use.

Think about the availability of spare parts
Choose a vertical lime kiln with readily available spare parts. This ensures maintenance and quick repairs when needed. Sustainability is also an important factor to consider when choosing a vertical lime kiln. Go for those with designs that allow for the efficient use of resources with minimal waste.

Asks about installation and support
Ask suppliers about installation and after-sales support. Go with suppliers that provide expert installation and extensive support. Finally, consider the technology used in the vertical lime kiln. Opt for modern technology with improved efficiency and lower environmental impact.

Production process of Vertical Lime Kiln

Limestone and coal are respectively fed into the storage bins by forklift. The lower parts of the bins have automatic weighing hoppers. After weighing according to the amount set by the computer, the limestone and coal are mixed. The mixed material is lifted by the skip car through the inclined bridge to the top of the lime kiln, and then is evenly sprinkled into the kiln through the loading equipment and the feeding equipment.

The raw material descends under the action of its own gravity in the kiln. At the bottom of the kiln, a roots blower cools the lime at the bottom of the kiln. The wind from the bottom exchanges heat with the lime and enters the calcining zone as fuel after its temperature reaches 600 degrees.

Lime shaft kilns are stationary vertical kilns where the raw limestone enters at the top and gravity flows through three thermally zoned sections known as the preheating, calcining, and cooling zones. and complete chemical reaction under the action of high temperature to decompose into calcium oxide (lime). After that, it is discharged from the kiln bottom by the disc ashing machine and the ash discharging device with the function of sealed discharge, to realize the non-stop wind unloading.

FAQ

Q: How is the quality of your products?

A: Our products are manufactured in strict accordance with both national and international standards. We test each piece of equipment before delivery to ensure top quality.

Q: How about the price?

A: As a factory, we can offer you more competitive prices than the market rate. Our policy is to provide the lowest possible quotation to save time and maintain an absolutely honest business attitude. Discounts can be provided based on the order quantity.

Q: What is your delivery time?

A: The delivery time is 7-10 days for items in stock and 15-30 days for mass production.

Q: What payment methods do you accept?

A: We typically accept T/T, L/C, and Western Union payments.

Q: If I need a complete mining rig, can you assist in building it?

A: Yes, we can help you set up a complete production line and offer professional advice.

As one of the most professional special rotary kiln manufacturers in China, we're featured by quality products and good price. Please feel free to buy high-grade special rotary kiln for sale here from our factory.

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