Equipo de horno de cal
Horno rotatorio de cal para calcinación de piedra caliza
Vanore Mining supplies lime rotary kiln equipment for converting prepared limestone into quicklime. The rotating, refractory-lined shell works with the firing system, support rollers and drive, and can be integrated with a preheater, cooler and dust collection system.
Lime Rotary Kiln for Quicklime Production
Calcination converts calcium carbonate in limestone into calcium oxide and releases carbon dioxide. Within the inclined rotary kiln, shell rotation advances and turns the material as heat is transferred to it. The solid product leaving the kiln is quicklime.
Vanore rotary equipment combines the shell, refractory lining, support stations, drive and end connections. The lime-production configuration also defines how stone is preheated, how the product is cooled and how process gas is handled. These interfaces distinguish a lime system from a general-purpose rotary kiln assembly.
Lime Rotary Kiln Design and Equipment Gallery
Lime Kiln Equipment Features
Rotary shell and refractory lining
The shell provides the material path through the calcination zone. Refractory lining separates the hot process environment from the steel structure.
Support rollers and riding rings
The support stations carry the rotating shell and material load. Roller alignment and thermal movement are considered within the mechanical arrangement.
Drive and end seals
The transmission provides rotation, while the inlet and outlet seals connect the moving shell with stationary equipment and help manage unwanted air ingress.
Preheater and cooler connections
The kiln can be integrated with limestone preheating and quicklime cooling. These connections link the reaction stage with heat recovery and product handling.
Quicklime Production Applications
Lime for metallurgical use
A lime rotary kiln can supply quicklime production for metallurgical applications where product chemistry, size and reactivity matter. Limestone composition and the calcination conditions influence the resulting product. The kiln configuration brings together limestone properties, required output and the quicklime quality needed by the downstream process.
Industrial and chemical lime supply
Quicklime serves as an alkaline material in a range of industrial processes. The kiln produces the calcined material, while cooling, storage and any subsequent processing remain separate stages. Hydrated-lime production adds a hydration stage after calcination.
Integration into a lime production line
The thermal section connects upstream limestone preparation with downstream cooled-lime handling. Stone sizing, controlled feeding, the firing arrangement and the gas path operate as one system. El kiln equipment range supports the thermal-processing stage, while connected equipment defines the scope of the complete line.
Limestone Feed and Product Requirements
Prepared limestone is the feed for high-calcium quicklime production. Its carbonate content, impurities, size distribution and behavior during heating influence the process. Dolomitic stone requires a separate process assessment because its chemistry changes the feed and product duty.
Lime Rotary Kiln Design Specifications
| Designed lime capacity (t/day) | Kiln diameter × longitud (m) | Effective kiln volume (m³) | Velocidad de rotación (rpm) |
|---|---|---|---|
| 200 | 2.8 × 42 | 190 | 0.45–2.22 |
| 300 | 3.3 × 50 | 292 | 0.20–1.90 |
| 400 | 3.6 × 56 | 430 | 0.22–1.57 |
| 600 | 4.0 × 60 | 575 | 0.48–1.57 |
| 800 | 4.3 × 66 | 738 | 0.21–1.57 |
| 1,000 | 4.8 × 68 | 1,005 | 0.19–1.98 |
Design capacity is expressed as lime production for the listed configuration. Feed chemistry, preparation, fuel and the connected preheater and cooler form part of the process design.
Precalentamiento, Calcination and Cooling
| Escenario | Conexión de equipos | Process function |
|---|---|---|
| Preparación de piedra | Aplastante, screening and controlled feeding | Prepare a consistent limestone feed |
| Precalentamiento | Limestone preheater connected to kiln exhaust | Transfer heat from process gas to incoming stone |
| Calcination | Rotary kiln and firing system | Convert carbonate feed into quicklime |
| Enfriamiento | Cooler connected to the kiln discharge | Cool the hot lime and recover heat into the air circuit |
| Gas handling | Acondicionamiento, collection and extraction equipment | Handle dusty process gas separately from the solid product |
Limestone screening y controlled feeding support the upstream material flow. Dust collection equipment must match the actual gas temperature and composition. A horno de cal vertical uses a shaft-based material and gas-flow arrangement, with its own operating and installation requirements.
Preguntas frecuentes sobre el horno rotatorio de cal
What does a lime rotary kiln produce?
It calcines prepared limestone to produce quicklime, principally calcium oxide. Carbon dioxide is released during the conversion. Hydrated lime requires a separate hydration stage.
What do the design capacities in the table describe?
They describe lime production for the listed kiln sizes, effective volumes and rotation speeds. Feed chemistry, fuel and the connected thermal equipment form part of the design basis.
Why connect a preheater and cooler to the kiln?
A preheater transfers heat from kiln exhaust to incoming stone. A cooler reduces the hot lime temperature and can return recovered heat through the air circuit. Both are separate equipment stages connected to the rotary kiln.
What determines the calcination conditions?
Limestone size and composition, transferencia de calor, firing conditions and required quicklime quality guide the operating temperature and residence time for the process.
Contacto Vanore Minería
Discuss a Lime Rotary Kiln Configuration
Contact Vanore Mining about the limestone feed, required lime output and equipment scope. Our team can review the kiln assembly and its preheater, enfriador, gas-handling and material-transfer connections.