Residual sieves are devices used to separate solid particles of different sizes in a liquid suspension. They are commonly used in industrial applications such as water and sewage treatment, mining, food and pharmaceutical industries. Residual sieves can be manufactured in different materials, including stainless steel, polymers and non-ferrous metals, and can have different types of meshes or screens to separate different particle sizes. Grupo EP works with two types of sieves, they are:
Static Sieve is a device that does not have mechanical movement and is used to separate particles of different sizes using a screen or mesh. This sieve is generally composed of a static box that contains the screen or mesh, and an upper cover that allows the entry of material. The liquid suspension is placed in the box, and the larger particles are retained on the screen or mesh, while the smaller particles pass through it.
Rotary Sieve is a device that has mechanical motion and is used to separate particles of different sizes using rotary motion. This sieve usually consists of a cylindrical chamber that contains a screen or mesh, and an upper lid that allows material to enter. The liquid suspension is placed in the chamber, and as it rotates, the larger particles are retained on the screen or mesh, while the smaller particles pass through it.
Rotary screens are generally used in applications that require high processing capacity, such as water and sewage treatment, food industry, mining and chemical industry, as they can process large volumes of material. Static sieves are more suitable for applications with smaller volumes of material and where greater precision in separation is desired.
working process
Static Sieve:
- The liquid suspension is placed in the sieve box, which contains a screen or mesh.
- Larger particles are retained on the screen or mesh, while smaller particles pass through it.
- The filtered liquid suspension is collected in a container or piped to other equipment.
- Particles retained on the screen or mesh can be removed manually or with the aid of cleaning tools.
- The liquid suspension is placed in the cylindrical sieve chamber, which contains a screen or mesh.
- The cylindrical chamber rotates, causing larger particles to be retained on the screen or mesh, while smaller particles pass through it.
- The filtered liquid suspension is collected in a container or piped to other equipment.
- Particles retained on the screen or mesh can be removed manually or with the aid of cleaning tools.
It is important to note that some rotary screens may have automatic cleaning mechanisms such as brushes, air or water jets to remove particles trapped in the screen or mesh, allowing operations to continue without interruption.
Static Sieve:
- High precision in particle separation: Static sieves usually have screens or meshes with precise opening sizes, which allows separating particles of different sizes accurately.
- Easy maintenance: Static sieves are generally simple to disassemble and clean, which facilitates equipment maintenance.
- Low cost: Static screens are generally cheaper than rotating screens as they have fewer mechanical components.
- Good strength: Static screens can be made from different materials, including stainless steel, polymers and non-ferrous metals, which make them resistant to corrosion and wear.
- High Processing Capacity: Rotary screens are generally capable of processing large volumes of material due to their rotating motion.
- Efficiency: Rotary sieves can separate particles of different sizes with high efficiency due to the rotating movement.
- Adaptability: Rotary Screens can be customized to meet the specific needs of a given application, such as changing the mesh size or adding additional components.
- Durability: Rotary screens are generally manufactured from robust materials such as stainless steel to ensure durability and corrosion resistance.
Applications
Static Sieve:
- Food industry: to separate particles of different sizes in products such as flour, sugar and cereals.
- Pharmaceutical industry: to separate particles of different sizes in medicines and supplements.
- Chemical industry: to separate particles of different sizes in solutions and suspensions.
- Pulp and paper industry: to separate particles of different sizes in paper pulp.
- Water and sewage treatment: to separate particles of different sizes in treated water and sewage.
Rotary Sieve:
- Mining: to separate particles of different sizes in ores and rocks.
- Food industry: to separate particles of different sizes in products such as flour, sugar and cereals.
- Chemical industry: to separate particles of different sizes in solutions and suspensions.
- Water and sewage treatment: to separate particles of different sizes in treated water and sewage.
- Recycling industry: to separate particles of different sizes into recyclable waste and recycled materials.
