Vertical Preheater
Capacity: 200-800（t/d）
Feeding size: 10～50（mm）
Preheating Temperature: ≥800℃
Preheating Material: limestone ; dolomite
Vertical Preheater for Sale
Vertical preheater is an important heat recovery equipment in modern industrial production. It uses vertical design, saving land area. Vertical preheater specializes in design for high-energy-consuming industries such as cement, lime, and metallurgy. It reuses a large amount of high-temperature exhaust gas emitted from the limestone rotary kiln. Full and efficient heat exchange with materials. It raises the material temperature to above 85℃. Reduce fuel consumption and save production costs. At the same time, increase the output and efficiency of kilns. Vertical preheaters are an ideal choice for the construction and renovation of modern production lines.
The Challenges You Face
High energy consumption and low profit: the fuel costs are too high, and high-temperature exhaust gas is wasted. These lead to increased profits.
Frequent equipment blockage: Traditional cyclone preheaters often suffer from internal scaling and blockage. Increased maintenance costs.
Insufficient on-site space: The production line layout is compact, and there is limited on-site space available. The renovation plan could not be implemented.
Strict emission standards: Emission standards are becoming increasingly stringent. Existing equipment cannot meet environmental protection requirements.
Advantages of Vertical Preheater
Energy saving
Vertical preheater uses a counterflow heat exchange design. High-temperature waste gas is recycled to preheat materials. This reduces the fuel required for subsequent calcination. Overall energy consumption is reduced by 20%-30%.
Compact design
The vertical preheater is different from traditional equipment. It uses vertical structure, modular design, and installation, with a small footprint. It perfectly solves the problem of limited customer space.
Stable operation
We have optimized the internal structure and fabric system. This ensures smooth material flow and solves the problems of crusting and clogging. To ensure the continuous and stable operation of the production line.
Highly adaptable
Vertical preheaters have excellent processing capabilities for materials with different properties, fineness, and moisture content. It can flexibly adjust parameters to ensure efficient and stable system operation.
Vertical Preheater Working Principle
- Material feeding: The raw materials are fed to the top of the vertical preheater via a conveyor system. The feeding device can precisely control the feed rate. The material is continuously fed into the vertical preheater and evenly distributed across its cross-section. Evenly distributed layers help improve heat exchange efficiency.
- Countercurrent heat exchange: Countercurrent heat exchange is a crucial step in achieving efficient heat recovery. The material moves from top to bottom under the influence of gravity. High-temperature exhaust gas moves upwards under the action of the system's induced draft fan. During this process, the materials and high-temperature exhaust gas come into full contact. High-temperature exhaust gas efficiently transfers a large amount of heat energy to materials with lower temperatures, quickly completing the heat exchange.
- Material discharge: After sufficient preheating, the temperature of the material can reach 600-800°C. Then the high-temperature material gathers at the bottom of the vertical preheater. The material is stably discharged through the airlock unloading device. At the same time, prevent cold air from entering. The high-temperature material is then fed into a limestone rotary kiln or a vertical lime kiln. The fuel consumption in the subsequent calcination process will be greatly reduced.
- Exhaust gas discharge: After the exchange is complete, the temperature of the exhaust gas drops to around 300°C. Discharged from the top of the vertical preheater. It then enters a baghouse dust collector or other exhaust gas treatment system. After purification, it is discharged.
Application Areas
—— Vertical preheaters are widely used in industries such as lime, cement, and metallurgy.
In the lime calcination plant, the vertical preheater is a key component of the limestone rotary kiln or vertical lime kiln equipment. It can not only effectively utilize the waste heat of exhaust gas, but also significantly reduce fuel consumption. Improve the quality of lime products.
Cement Production Line
The vertical preheater is the core component of the rotary kiln system in a new dry-process cement production line. This process raises the temperature of raw materials to over 800°C. The decomposition rate of calcium carbonate can reach 85-95%. This allows the cement clinker to be sintered quickly inside the rotary kiln.
A vertical preheater is used in this process to preheat moist clay particles. High-temperature exhaust gas can effectively evaporate the moisture in clay and preheat the material. This step saves energy in heating the materials and also ensures that the ceramsite product has a uniform pore structure.
Vertical preheaters are used in the calcination section of PCC plants. Make full use of the heat from the high-temperature waste gas generated by the calcining kiln to preheat the limestone raw material. This greatly reduces the fuel consumption of limestone calcination itself. This improved the economic efficiency and environmental friendliness of the entire PCC production line.
Why Choose AGICO?
——Vertical Preheater Solution
- Rich experience: AGICO has many years of experience in cement, lime, metallurgy, and other fields. We have multiple successful delivery experiences of rotary kiln production lines. We have already completed cooperation with many countries in Asia, Africa, and South America.
- Advanced technology: AGICO has an experienced technical team. We have mastered technologies such as high-efficiency airlock valves and intelligent anti-clogging systems. We offer modular and personalized customization solutions according to different customer requirements.
- Comprehensive services: AGICO offers a one-stop turnkey service including pre-sales consultation, design, equipment manufacturing, installation, and commissioning. We provide systematic technical training for customer operators. Ensure the production line can be put into operation quickly.
- After-sales guarantee: AGICO has a comprehensive after-sales system to ensure the rapid supply of vulnerable parts. We have established a 24-hour technical support hotline. Ensure that problems are resolved promptly to minimize downtime losses.