Iron III Phosphate Calcination
Rotary Kiln
Indirect Heat
Iron Phosphate
Calcination
Indirect Rotary Kilns for Iron III Phosphate Calcination
Calcination of iron phosphate can also be called the preparation of lithium iron phosphate (LFP). Iron phosphate, as a battery precursor material, is calcined in a rotary kiln by indirect heating with a lithium source (such as lithium carbonate or lithium hydroxide) to undergo a chemical reaction, improve the crystal structure and conductivity of the material, and form lithium iron phosphate with good electrochemical performance. The final positive electrode material with the required properties and performance is formed, namely lithium iron phosphate (LiFePO₄). We have calcination solutions, flash drying + rotary kiln calcinator + cooling and conveying solutions, and spray drying + rotary kiln calcinator + cooling and conveying solutions.
indirect rotary kiln for calcining iron phosphate
Calcining kiln used for the high-temperature batch heating treatment of powdery or filter cake-like materials. Also known as a roasting furnace, it can be categorized based on the type of energy used into coal-fired kilns, gas-fired kilns, oil-fired kilns, and electric heating kilns. Calcining kilns are primarily used for processes such as activation, crystal transformation, oxidation, pyrolysis, reduction, halogenation, and sulfidation. They are widely applied in the production processes of special materials in industries such as petrochemicals, inorganic chemicals, metallurgy, and construction.
Features of Electric Heating Roasting Furnace
- Excellent sealing effect and high degree of automation.
- Automatic control of roasting temperature with segmented settings.
- Safe and reliable heating system.
- Insulated furnace chamber with surface temperature rise below 50°C, resulting in minimal heat loss.
- Simple and compact structure, small size, and lightweight.
- High efficiency, energy-saving, and pollution-free.
- Low operational intensity, easy maintenance, and good working environment.
- Simpler auxiliary equipment compared to other energy roasting furnaces, making it easy to maintain.
- Operating temperature ranges from 400°C to 1000°C.
Features of Gas-fired Roasting Furnace
- Excellent sealing effect, reducing material and heat loss.
- Complete gas combustion with high thermal efficiency.
- Automatic and segmented temperature control.
- Equipped with an unexpected power outage protection system.
- Good insulation performance, reducing heat dissipation loss.
- Safe and reliable combustion control system.
- Compact structure, small size, and lightweight; the furnace body can be directly assembled on site.
- Less environmental pollution compared to solid and liquid fuels.
- Operating temperature ranges from 400°C to 900°C.
calcining iron phosphate Solution
Flash Dryer + Rotary Calciner + Cooler
This iron III phosphate calcining system include the drying system, the rotary kiln system, and the cooling and conveying system. The drying system consists primarily of a heater, feeder, dryer, dust collector, fan, and control system. Due to the special properties of some specific materials, the feeder in the system is specially designed and can be selected according to the material characteristics. The heater has a new structure with higher thermal efficiency and increased safety. The dust collector is designed according to the material characteristics. The rotary kiln system mainly consists of a transitional silo (optional), a rotary kiln, and a heating system (electric or natural gas). The transitional silo can be optionally equipped with a weighing system. The rotary kiln is designed according to the material characteristics, with considerations for materials and corrosion resistance tailored to the specific material. The heating system can use either electric heating or natural gas heating. The cooling and conveying system can use a cooling screw or airflow cooling conveying device, or a combination of both.
Features:
- The automatic control system can quickly respond and adjust according to user requirements or changes in external conditions. This is mainly reflected in the automatic adjustment control of the inlet air temperature, the interlock control of the outlet air temperature and feed rate (to ensure consistent product quality), and the system pressure adjustment (automatic or manual) to ensure system stability. The roasting kiln has high control precision, with zoned control. Each zone’s heating temperature and heat source are interlocked, and the material temperature in each zone can be displayed in real-time on the control cabinet through a special temperature measurement method, allowing users to easily adjust controls when the process changes.
- The system can effectively control the introduction of metallic magnetic foreign objects, keeping their introduction to an extremely low level.
- The system flow is simplified and optimized, improving material quality.
- The rotary kiln cylinder is processed as a whole to ensure cylinder precision.
- During roasting, inert gases or other carrier gases can be introduced according to material requirements.
- The system can be equipped with a waste heat recovery device, which can save 20-30% of energy.
iron phosphate process
Spraying Dryer + Rotary Calciner + Cooler
This iron III phosphate calcining project includes drying system, rotary kiln system, cooling and conveying system. The drying system primarily consists of a heater, feeder, dryer, dust collector, fan, and control system. There are two forms of spray dryers: centrifugal spray dryers and pressure spray dryers. Due to the special properties of some specific materials, the feeder in the system is specially designed and can be selected according to the material characteristics. The heater has a new structure with higher thermal efficiency and increased safety. The dust collector is designed according to the material characteristics. The rotary kiln system mainly consists of a transitional silo (optional), a rotary kiln, and a heating system (either electric or natural gas). The transitional silo can optionally be equipped with a weighing system. The rotary kiln is designed according to the material characteristics, with considerations for materials and corrosion resistance tailored to the specific material. The heating system can use either electric heating or natural gas heating. The cooling and conveying system can use a cooling screw or airflow cooling conveying device, or a combination of both.
Features:
- The automatic control system can quickly respond and adjust according to user requirements or changes in external conditions. This is mainly reflected in the automatic adjustment control of the inlet air temperature, the interlock control of the outlet air temperature and feed rate (to ensure consistent product quality), and the system pressure adjustment (automatic or manual) to ensure system stability. The rotary kiln has high control precision, with zoned control. Each zone’s heating temperature and heat source are interlocked, and the material temperature in each zone can be displayed in real-time on the control cabinet through a special temperature measurement method, allowing users to easily adjust controls when the process changes.
- The rotary kiln can precisely measure the material temperature, ensuring the roasting effect.
- The system flow is simplified and optimized, improving material quality.
- The rotary kiln cylinder is processed as a whole to ensure cylinder precision.
- Inert gases or other carrier gases can be introduced during roasting according to material requirements.
- The system can be equipped with a waste heat recovery device, which can save 20-30% of energy.
- The pressure spray can adjust the particle size of the product to a certain extent and can be designed for co-current or mixed-flow spraying according to product requirements. A return powder design can also be implemented.
iron phosphate production
Rotary Calciner + Rotary Cooling Furnace System + Cooler
This iron phosphate production plant is include: rotary kiln system, rotary cooler system, and cooling or conveying system. The rotary kiln plant primarily consists of a transitional silo (optional), a rotary kiln, and a heating system (either electric or natural gas). The transitional silo can optionally be equipped with a weighing system. The rotary kiln is designed according to the material characteristics, with considerations for materials and corrosion resistance tailored to the specific material. The heating system can use either electric heating or natural gas heating. The rotary cooler system mainly consists of a rotary cooler and a cooling system (air or water). The cooling system can use natural air, inert gases, or spray cooling. The cooling or conveying system can use a cooling screw or airflow cooling conveying device, or a combination of both.
Features:
- The automatic control system can quickly respond and adjust according to user requirements or changes in external conditions. This is mainly reflected in the automatic adjustment control of the inlet air temperature, the interlock control of the outlet air temperature and feed rate (to ensure consistent product quality), and the system pressure adjustment (automatic or manual) to ensure system stability. The rotary kiln has high control precision, with zoned control. Each zone’s heating temperature and heat source are interlocked, and the material temperature in each zone can be displayed in real-time on the control cabinet through a special temperature measurement method, allowing users to easily adjust controls when the process changes.
- The system effectively controls the introduction of metallic magnetic foreign objects, keeping their introduction to an extremely low level.
- The system flow is simplified and optimized, improving material quality.
- The rotary kiln cylinder is processed as a whole to ensure cylinder precision.
- Inert gases or other carrier gases can be introduced during roasting according to material requirements.
- The rotary kiln and rotary cooler can be integrated or separated.
- The system can be equipped with a waste heat recovery device, which can save 20-30% of energy.