apagadores de cal
apagador de detención
Detention slakers are used to produce lime slurry for a variety of industrial applications including water treatment, flue gas treatment, and chemical manufacturing. In a detention slaker, quicklime (calcium oxide) is combined with water and thoroughly agitated to create a highly reactive hydrated lime slurry (calcium hydroxide). Unlike in batch processes, detention slakers can produce a continuous supply of lime slurry for use in downstream processes.
When operating a detention lime slaker, research has shown that for any given quicklime source, lime slaking temperature control is the single most important factor influencing the reactivity of the final lime slurry. The chemical reaction of quicklime and water is exothermic, producing a significant amount of heat. While this heat accelerates the reaction and helps make the slaking process faster and more efficient, proper temperature control is crucial to prevent overheating. By monitoring the temperature of the slurry and automatically adjusting quicklime and water inputs to maintain an optimum slaking temperature between 175°F and 185°F (79.4°C and 85.0°C), detention slakers are able to better adapt to fluctuations in lime reactivity and produce a more consistent, higher-quality lime slurry.
Compared to other lime slaker types, detention slakers are moderately sized, relatively inexpensive to install, and have a high ability to be optimized. They are well-suited to applications where lime quality is reliable, and a continuous flow of lime slurry is needed.
¿Por qué usar el apagador de cal ZMI Portec de Carmeuse Systems?
Versátil
The ZMI Portec Detention Slaker from Carmeuse Systems can slake quicklime, as pebble or fine lime, up to ¾” and handles water with moderate impurity levels without issues. ZMI Portec lime slaking systems can produce lime slurry in and around 25% solids.
Seguro
Our ZMI Portec Detention Slaker is outfitted with a horizontal agitator to break the slurry surface as it mixes. While this helps to ensure complete mixing of the water and quicklime, it also allows for safer operation by minimizing hot spots and preventing the formation of a dangerous lime cap along the surface of the lime slurry. Additional enhancements like our wetting bowl and forced draft wet scrubber further increase safety by reducing dusting in the shop.
Eficiente
Overall, the ZMI Portec line of detention slakers helps to optimize lime usage. Vigorous agitation of the slaking chamber ensures no dead spots during lime slaking, and our detention slakers feature an external water jacket, which preheats incoming water, reducing the need for separate pre-heaters.
Automatizado
By implementing our programmable logic controlled (PLC) system, our ZMI Portec Detention Slakers can respond to changes in lime quality and feed rate via integrated automated controls. This minimizes the manpower needed to monitor the system and increases productivity by automatically monitoring input and outputs and adjusting accordingly.
For more information about our line of ZMI Portec Detention Slakers, or to learn about system upgrades and enhancements for your detention slaker, contact our team.
Documentation
Documentation
For additional information or to discuss your requirements with our sales group, please contact us.
Features&Benefits
Características y beneficios
| Características | Beneficios |
|---|---|
| Agitador de tipo rastrillo horizontal | Garantiza una mezcla completa de agua y cal, con lo que se evitan puntos calientes y se maximiza el uso de cal |
| Chaqueta de agua externa | Precalienta el agua entrante con lo que se reduce la necesidad de precalentadores y se ahorra en costes de energía |
| Forma redonda de la parte inferior del barril | Apaga la cal debido al contacto cercano de las palas con las paredes, con lo que se garantiza una mezcla homogénea |
| Bol húmedo | Crea una cortina de agua alrededor del flujo de alimentación de producto seco con lo que evita la acumulación de cal y obstrucciones iniciales, con lo que aumenta la eficiencia |
| Limpiador húmedo de calado forzado | Elimina el polvo y el vapor ahorrando dinero de cal perdida y mantenimiento |
| Conexión de eje de acoplamiento a eje del agitador | Reduce el desgaste de la empaquetadura de la junta, con lo que amplía la vida útil del eje y reduce los costes en piezas de reemplazo |
| Manipulación de gravilla y sólidos eficiente | Minimizes settling resulting in a highly reactive slurry |
| Cámaras de apagado separadas por deflectores | Evita un cortocircuito en la cal con lo que se garantiza una cal totalmente apagada en la salida |
| Forro de desgaste en las zonas de apagado | Protege la vida del cuerpo del apagador y se puede sustituir, con lo que amplía el ciclo de vida del apagador de cal |
| Cojinetes de eje de agitador externos | Minimiza el desgaste debido a que no hay contacto con la pulpa de cal, con lo que aumenta la vida útil del producto |
| Disposición de junta de tipo de empaquetadura asimétrica | Reduce las fugas de la junta y amplía la vida útil del eje al mejorar la seguridad y ahorra costes |
| Opción de sistema de control PLC | Proporciona una productividad que maximiza la operación sin problemas |
Capabilities
Capabilities
For over 50 years, Carmeuse Systems has been providing slaking systems and other equipment solutions to our customers across various industries. Whether you are looking for a new detention slaker or to retrofit or upgrade an existing system, our knowledgeable teams work with you to develop a solution that aligns with your needs, application, and budget. In addition to detention slakers, we also offer a range of other slaker types, and components such as hoppers, feeders, and bulk chemical storage solutions.
Specifications
AVAILABLE SIZES
Our ZMI Portec line of detention slakers are available in a range of models, capable of processing between 1.000 lbs to 26.000 lbs of dry quicklime per hour. Models include:
| Model | Capacity of Quicklime | Volume (US gallons) |
|---|---|---|
| M-5 | 1000 lbs/h | 90 gal |
| M-15 | 2500 lbs/h | 210 gal |
| M-25 | 5500 lbs/h | 450 gal |
| M-40 | 9000 lbs/h | 720 gal |
| M-55 | 12500 lbs/h | 990 gal |
| M-60 | 16000 lbs/h | 1360 gal |
| M-90 | 26000 lbs/h | 1950 gal |
PROCESS REQUIREMENTS
In terms of water to lime ratios, our detention slakers typically operate at a 4:1 ratio and utilize temperature control for managing the water and lime feeds.
- Calcium Oxide: Min 75% CaO available
- Feed Particle Size: Max. ¾” [19 mm]
- Water Supply: Min. pressure of 40 psig [276 kPag]
For additional specifications see the ZMI Portec Detention Slaker data sheet.
End-2-End Support
When it comes to detention slakers, Carmeuse Systems is your go-to solution provider from End-2-End. As part of Carmeuse, we understand the systems necessary to handle quicklime effectively but also the intricacies of the raw material itself. Carmeuse is a leading provider of lime and limestone products and through our End-2-End Services, we support customers from the mines where the raw material is produced through to the point of application.
The benefits of working with Carmeuse Systems includes:
- Expertise in Lime and Limestone
- Engineering and Design Expertise for Complete Lime Handling Systems
- Component Parts to Integrate into Existing Applications
- System Retrofits and Upgrades
- Maintenance and Replacement Parts at the Ready
- Access to Experts to Diagnose System Issues and Improve Efficiencies
- Laboratory Services through our Innovation Center
Learn more about our End-2-End Services.
