VIBRO SIFTER

Description:

Separation of solids from solids. Liquids from solids and gradation of materials in accordance with their sizes have always presented problems. Especially when large quantity of material is to be processed through finer screens. In recent times the most important development that took place is the replacement mechanical sifter & vibro sifter in sleving and straining operation. Even if a particle is small it would pass through a screen only if its configuration relating to the opening is favorable.

For a non-isometric particle, the axis must be correctly aligned with respect to the place of the screen and the center of gravity of the particle must be above the aperture at any instant. Further, the amount of material on the screen should be such that passage of small particles is not obstructed by larger particles.

It is therefore necessary to impart horizontal rotary motion to the particle by suitable means. Care also has to be taken to ensure that such motions, particularly during dry sleving or grading operation. should not be vigorous so as to cause size reduction of particles themselves or damage to the screen.

Vibro Sifter – Screening, Sieving, and Grading by Shree Bhagwati

Application & Process:

The Vibro Sifter is an essential piece of equipment used across multiple industries for the screening, sieving, and grading of materials, particularly for solid-liquid separation. This process helps separate desired elements from undesired ones in various combinations of solids-to-solids and solids-to-liquids. Vibro sifters are widely used in industries such as:

• Pharmaceuticals
• Chemicals
• Cosmetics
• Plastics
• Paints
• Minerals
• Rubber compounds
• Metal powders
• Detergents
• Pesticides and fertilizers
• Dyestuffs and pigments

Working Process:

The Vibro Sifter consists of a screen mounted on a base plate that is centrally attached to a gyratory motor. The material is fed through an inlet located at the top and is dropped onto the screen. The material is then separated by size: smaller particles pass through the mesh, while larger particles are discharged through an outlet. The combination of vibratory motion produced by the motor and the adjustable weights on both the top and bottom of the screen ensures effective filtration or separation.

• The equipment is mounted on springs, which isolates the vibrations, preventing them from affecting the foundation or surrounding areas.
• The setup allows for efficient separation of materials based on their size, facilitating consistent grading and sieving.

Salient Features:

• cGMP Compliance: The Vibro Sifter is designed to meet Current Good Manufacturing Practices (cGMP), ensuring high standards of safety and quality control.
• Material Construction: All parts that come in contact with the material are made from AISI 316 stainless steel, while non-contact parts are constructed from AISI 304 stainless steel, providing durability and resistance to corrosion.
• Powerful Vibration: The sifter uses a gyratory motor to generate powerful vibration, which helps achieve optimal separation of materials.
• Easy Operation:
  • Side outlets and fines discharge for efficient material handling.
  • The machine is easy to move and clean, facilitating quick setup and maintenance.
  • Noiseless operation for a quieter working environment.
• Lead-Free & Silicon Seal Sieve: The sieve used is free of lead and features a silicon seal, ensuring safe and reliable operation.

Optional Features:

• Inline Loading/Milling and Transfer: The Vibro Sifter can be integrated into a vacuum transfer system for inline loading, milling, and direct transfer to a bin or blender, improving the workflow.
• Double or Triple Deck System: For higher output and more complex sieving, the Vibro Sifter can be equipped with a double or triple deck sifting system, increasing the separation efficiency.

Models & Specifications:

Conclusion:

The Vibro Sifter by Shree Bhagwati provides an efficient, reliable, and versatile solution for screening, sieving, and grading a wide range of materials. It offers a dust-free and precise separation process, making it ideal for industries that require high-quality filtration and material handling. With its various models and optional features, it can be tailored to meet specific processing needs, improving operational efficiency and product quality.

Sieving, Grading and Straining Machine was specially developed with above design features to provide vibration. The amplitude of vibration is adjustable to processing needs.

Salient Features:

• SS 316 contact parts
• Portable and compact.
• Lower energy consumption compared to reciprocating vibratory system.
• Standard machines are with TEFC motor.
• All contact parts and screen of 304 AISI Stainless Steel material.
• Easy dismantling and cleaning facility for contact parts.
• Wide range of screen sizes 4-300 mesh.

Technical Specifications:

Normally vibro screens are used in Certain standard configurations only, however many combinations are possible, some of which are shown below