¿Qué es la celda de flotación de autoaspiración tipo SF?
La celda de flotación de autoaspiración tipo SF, también conocida como máquina de flotación SF o celda de flotación de autoaspiración, es un equipo de flotación de agitación mecánica utilizado para separar minerales valiosos de la pulpa de mineral mediante el proceso de flotación por espuma. Se aplica principalmente en plantas de procesamiento de minerales para el beneficio de cobre, plomo-zinc, oro, molibdeno, mineral de hierro, grafito, fluorita y otros minerales metálicos y no metálicos.
La celda de flotación SF combina las funciones de succión de aire, succión de pulpa y flotación en una sola unidad. El impulsor giratorio genera presión negativa para aspirar automáticamente aire y pulpa hacia la cámara, creando una mezcla suficiente y dispersión de burbujas para la separación de minerales. En una planta de beneficio completa, las celdas de flotación SF generalmente se instalan después de los procesos de molienda, clasificación y acondicionamiento, y se utilizan ampliamente en circuitos de desbaste, barrido y limpieza. Dependiendo de la capacidad de la planta y los requisitos del proceso, los modelos SF están disponibles en diferentes volúmenes de celda, con unidades industriales comúnmente configuradas desde varios metros cúbicos hasta más de 10 m³ por celda. Si desea obtener más información, haga clic en “¿Qué es una celda de flotación?”
¿Cómo funciona la celda de flotación de autoaspiración?
La celda de flotación de autoaspiración tipo SF funciona mediante la acción combinada de agitación del impulsor, succión de aire y flotación de minerales. Durante la operación, el impulsor giratorio crea presión negativa dentro de la cámara del impulsor, aspirando automáticamente aire a través del eje hueco mientras circula la pulpa desde el tanque. Este diseño de autoaspiración permite la mezcla continua de la pulpa y la dispersión de aire sin requerir un sistema externo de suministro de aire.
Mezcla de pulpa y succión de aire
El motor impulsa el impulsor a girar, creando una diferencia de presión en la cámara del impulsor. Las paletas superiores aspiran aire hacia la celda de flotación, mientras que las paletas inferiores hacen circular la pulpa desde el fondo del tanque para mantener la suspensión de partículas y reducir el asentamiento de partículas gruesas.
Adhesión burbuja-mineral
El impulsor dispersa el aire entrante en burbujas finas y las mezcla uniformemente con la pulpa. Bajo la acción de los reactivos de flotación, las partículas de minerales valiosos se adhieren a las superficies de las burbujas y forman burbujas mineralizadas para la separación.
Recogida y recuperación de espuma
Las burbujas mineralizadas ascienden a la superficie y forman una capa de espuma, que es retirada por el mecanismo raspador como concentrado. La pulpa restante continúa a través del circuito de flotación para una separación adicional, con múltiples celdas SF comúnmente dispuestas en serie para operaciones de desbaste, barrido y limpieza.
Estructura de la celda de flotación de autoaspiración tipo SF
La celda de flotación de autoaspiración tipo SF está compuesta por un sistema de impulsor-estator, un sistema de circulación aire-pulpa, un tanque de flotación y una unidad de transmisión, formando una estructura de flotación completa.
Motor reductor de tornillo sin fin
Impulsa el eje del raspador de espuma en la superficie del tanque de la máquina de flotación, haciendo que la hoja raspadora gire y retire la espuma de concentrado de la superficie del líquido. Es un componente del sistema de raspado de espuma.
Eje del raspador, hojas raspadoras y conjunto de polea
Este conjunto constituye el mecanismo de raspado de espuma de una máquina de flotación; el componente rojo es una polea, el eje largo sirve como husillo principal del raspador y la placa de acero actúa como hoja raspadora. Un motor impulsa este eje mediante una correa para realizar el raspado continuo de espuma.
Conjunto de impulsor y estator
Piezas de desgaste clave (componentes de agitación y aireación): El impulsor giratorio genera presión negativa para aspirar aire y agitar la pulpa, mientras que el disco exterior perforado sirve como estator (placa de cubierta), estabilizando el flujo de pulpa y cortando las burbujas de aire, lo que lo convierte en el “corazón” de la máquina de flotación.
Tanque de la máquina de flotación
El cuerpo principal de la máquina consiste en una carcasa que contiene la pulpa y sirve como zona de reacción para la flotación; el mecanismo de agitación del eje principal y el dispositivo de raspado de espuma están montados sobre el tanque. La máquina de flotación SF presenta un diseño de tanque en forma de U inclinado hacia adelante.
Especificaciones
La siguiente tabla de especificaciones proporciona información detallada para cada modelo de máquina de flotación SF, ayudando a los clientes a comparar diferentes configuraciones y seleccionar el equipo adecuado según sus requisitos de procesamiento.
| Modelo | Volumen efectivo (m³) | Diámetro del impulsor (mm) | Velocidad del impulsor (r/min) | Capacidad de procesamiento (m³/min) | Motor del impulsor | Motor del raspador | Dimensiones del tanque (mm) | Peso (t) | Volumen de succión de aire (m³/m·min) | ||
| Modelo | Potencia (kW) | Modelo | Potencia (kW) | ||||||||
| SF-0.37 | 0.37 | 296 | 386 | 0.2–0.4 | Y90L-4 | 1.5 | Y801-4 | 0.55 | 700×700×750 | 0.47 | 0.9–1.0 |
| SF-0.65 | 0.65 | 350 | 400 | 0.3–0.9 | Y132S-6 | 3 | Y90L-6 | 1.1 | 900×900×900 | 0.93 | 0.9–1.0 |
| SF-1.2 | 1.2 | 450 | 312 | 0.6–1.2 | Y132M2-6 | 5.5 | Y90L-6 | 1.1 | 1100×1100×1100 | 1.37 | 0.9–1.0 |
| SF-2.8 | 2.8 | 550 | 270 | 1.5–3.5 | Y160L-6 | 11 | Y90L-6 | 1.1 | — | 2.13 | 0.9–1.0 |
| SF-4 | 4 | 650 | 220 | 2–4 | Y200L-8 | 15 | Y100L-6 | 1.5 | 1850×2050×1200 | 2.58 | 0.9–1.0 |
| SF-8 | 8 | 760 | 191 | 4–8 | Y250M-8 | 30 | Y100L-6 | 1.5 | 2200×2900×1400 | 4.13 | 0.9–1.0 |
| SF-10 | 10 | 760 | 191 | 5–10 | Y250M-8 | 30 | Y100L-6 | 1.5 | 2200×2900×1700 | 4.49 | 0.9–1.0 |
| SF-16 | 16 | 850 | 169–193 | 5.0–16 | — | 45 | — | — | — | 7.415 | 0.9–1.0 |
| SF-20 | 20 | 730 | 186 | 5.0–20 | — | 30×2 | — | — | — | 9.823 | 0.9–1.0 |
Ventajas
SF Flotation Cell is designed for efficient mineral separation with integrated air suction, slurry circulation, and flotation functions. Its self-suction structure, optimized impeller system, and wear-resistant components provide stable flotation performance, lower energy consumption, and easier maintenance.
Aplicaciones
SF Type Self Suction Flotation Cell is mainly applied in roughing and scavenging circuits of mineral processing plants. With its integrated air suction, slurry suction, and flotation functions, it is suitable for the separation of various metallic and non-metallic minerals, including sulfide ores, precious metals, and industrial minerals.If you’d like to learn more, click on “Tipos de celdas de flotación para el procesamiento de minerales.”
SF Flotation Cell in Flotation Plant Process
SF Type Flotation Cell is typically installed after grinding, classification, and conditioning processes as the main flotation equipment for mineral separation. It is widely applied in roughing, scavenging, and cleaning circuits, using its self-air suction and slurry suction design to provide continuous pulp aeration and mixing without external air supply systems.
In a flotation plant, multiple SF Flotation Cells can be connected in series to complete continuous separation operations. The self-suction structure simplifies flotation circuit arrangement and allows flexible horizontal installation. SF cells can also be combined with JJF flotation cells to form flotation machine groups, which are commonly used for optimizing flotation layouts in medium and large beneficiation plants.
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How to Choose the Right SF Type Flotation Cell?
Based on our project experience, SF Type Flotation Cell selection starts with the required processing capacity and flotation circuit design. The cell volume and quantity should match the plant throughput and flotation stages. For example, SF-2.8, SF-4, and SF-8 models are commonly used in small and medium beneficiation plants, while larger plants may require SF-10, SF-16, or combined flotation configurations. The final selection should be based on slurry flow, residence time, and the requirements of roughing, scavenging, and cleaning circuits.
Below are the selection recommendations summarized by our engineers:
Confirm Processing Capacity
Choose the flotation cell model according to the required ore processing capacity and plant scale.
Check Ore Characteristics
Select the cell based on ore type, particle size, mineral properties, and flotation difficulty.
Choose the Right Cell Volume
Match the flotation cell volume with slurry flow rate and required flotation residence time.
Consider Flotation Stage
Rougher, cleaner, and scavenger flotation require different flotation performance and configurations.
Evaluate Mixing and Aeration Performance
Choose equipment with stable agitation, uniform air dispersion, and efficient mineral-bubble contact.
Consider Energy Consumption
Select a flotation cell with efficient power usage to reduce long-term operating costs.
Check Wear Resistance and Maintenance
Prioritize durable impellers, stators, and easy-maintenance designs for continuous operation.
Select Based on Test Results
Use mineral processing tests to determine the suitable SF flotation cell model and configuration.
Choose an Experienced Manufacturer
Work with a professional flotation equipment supplier for proper selection and process optimization.
Why Choose Zhongyi?
Zhengzhou Zhongyi Mining Machinery Co., Ltd has been specializing in mining and mineral processing equipment manufacturing since 2010. Based in Zhengzhou, China, the company provides SF flotation cells, crushing equipment, screening equipment, and complete mineral processing solutions for different mining applications.
With 3 manufacturing bases covering more than 300 acres, Zhongyi Mining has established complete production capabilities, including CNC machining, laser cutting, welding, and equipment assembly. The company follows the ISO9001 quality management system and applies strict quality control throughout equipment design, manufacturing, and delivery.
In addition to supplying individual flotation machines, Zhongyi Mining provides technical support from equipment selection and process design to installation guidance and commissioning. With experience in mineral processing projects, we work with customers to develop practical flotation solutions based on ore characteristics, production capacity, and plant conditions.
Solicite una solución personalizada
Partner with Zhongyi for SF Type Self Suction Flotation Cell solutions engineered for reliable mineral recovery, low energy consumption and stable operation in copper, gold, lead-zinc and other mineral beneficiation plants.
Customized XJK Flotation Machine Solutions
SF flotation cell selection and configuration depend on ore properties, processing capacity, and the existing plant layout. China Zhongyi Mining provides customized equipment recommendations based on actual project conditions, including flotation cell model selection, process arrangement, and equipment configuration. Our technical team can support projects from single flotation equipment supply to complete mineral processing plant solutions.
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Preguntas frecuentes
What is an SF Type Self Suction Flotation Cell?
SF Type Self Suction Flotation Cell is a mechanical agitation flotation machine designed for mineral separation through the froth flotation process. It integrates air suction, slurry suction, and flotation functions in one unit. The impeller creates negative pressure to draw air and slurry into the chamber, providing continuous mixing and bubble dispersion for the recovery of valuable minerals.
What minerals can be processed by SF Flotation Cell?
SF Flotation Cells are suitable for processing a wide range of metallic and non-metallic minerals, including copper, gold, lead-zinc, molybdenum, iron ore, graphite, and fluorite. The actual application depends on mineral properties, feed conditions, and flotation requirements. Proper equipment selection helps match the flotation process with the characteristics of different ores.
What are the advantages of SF Flotation Cell compared with other flotation machines?
The main advantage of SF Flotation Cell is its self-suction design, which combines air intake, slurry circulation, and flotation functions in one machine. Compared with flotation systems requiring additional air supply equipment, SF cells offer flexible installation and simpler circuit arrangement. They are commonly used where reliable operation and practical process configuration are required.
How to choose the right SF Flotation Cell model?
The correct SF Flotation Cell model should be selected according to processing capacity, ore characteristics, slurry conditions, and flotation circuit design. Important factors include required cell volume, number of units, feed size, and flotation stages. Engineers usually evaluate the complete process flow rather than selecting equipment only based on production capacity.
Can SF Flotation Cells be used for roughing, scavenging, and cleaning stages?
Yes. SF Flotation Cells can be applied in roughing, scavenging, and cleaning circuits depending on the beneficiation process design. Multiple units are usually arranged in series to provide sufficient flotation time and continuous mineral separation. The final configuration depends on ore properties, target recovery requirements, and plant production capacity.
Does SF Flotation Cell require an external air blower?
No. SF Flotation Cell adopts a self-air suction structure, where the rotating impeller generates negative pressure to automatically draw air into the flotation chamber. This eliminates the need for external air supply equipment in suitable applications and helps simplify the flotation circuit layout while reducing auxiliary equipment requirements.
Can SF Flotation Cell be combined with JJF Flotation Cell?
Yes. SF Flotation Cell is often combined with JJF Flotation Cell to form a flotation machine group. In this configuration, SF cells typically work as suction cells, while JJF cells operate as direct-flow cells. This arrangement allows flexible flotation circuit design and is commonly used in medium and large beneficiation plants.
What information is needed to select a suitable SF Flotation Machine?
To recommend a suitable SF Type Flotation Cell, customers should provide basic project information, including ore type, processing capacity, feed size, slurry concentration, existing flotation process, and plant layout. Based on these conditions, engineers can evaluate the required flotation volume, equipment quantity, and suitable configuration for the specific application.
