Vibratory Sifter Screening Flour

During the flour packaging process, lumps or other impurities may be mixed in. Vibratory Sifter Screening Flour is required to sieve the flour to achieve a finer flour fraction. The sieving range is from 20 to 500 mesh. Choosing the number of screen layers depends on your needs, such as whether you're selecting for impurity removal, filtration, or finer sieving. Generally, a vibratory sifter is suitable for general flour sieving, while an ultrasonic vibratory sifter is suitable for finer flours, such as those used in pastry processing.

Number of Screening Layers for a Vibratory Sifter Screening Flour

In the flour sieving process, the more screen layers a vibratory sifter screening flour has, the finer the impurity removal and grading objectives can be achieved simultaneously. The number of screening layers generally functions as follows:

1-2 layers of screens perform "coarse screening," removing large impurities such as bran, stones, and fiber from the flour without fine grading. 3-4 layers of screens perform "impurity removal + preliminary grading," separating the flour into 2-3 grades based on particle size, such as coarse flour, standard flour, and fine flour. 5 or more layers of screens perform "fine grading + deep purification," achieving multi-dimensional particle screening for high-demand flours such as cake flour and cake flour, while also removing trace impurities such as bran particles and dust.

What are the advantages of using a Vibratory Sifter Screening Flour?

The Vibratory Sifter Screening Flour optimizes the flour processing process from multiple perspectives, including purity, quality, and processing efficiency. The specific benefits can be categorized into the following five categories:

Improving Purity: High-frequency vibration and a specialized screen remove impurities such as dust and sand, preventing them from affecting taste or damaging equipment. Vibratory Sifter Screening Flour also breaks up flour clumps, ensuring a uniform texture and preventing interference with subsequent processing.

Optimizing Quality: 40-100 mesh screens can be selected as needed to screen flour with consistent particle size, eliminating quality fluctuations. Uniform flour also blends better with other ingredients, resulting in finer, chewier baked goods.

Improving Efficiency: It can be integrated with production lines for continuous operation, processing hundreds of kilograms to several tons of flour per hour, far exceeding manual labor. It also reduces labor costs, and a screening recovery rate of over 98% minimizes flour loss.

Ensuring Safety: Food-grade vibrating screens are mostly made of 304/316 stainless steel, making them easy to clean and meeting hygiene standards. Some Vibratory Sifter Screening Flour sealed structures to prevent dust and cross-contamination, improving the workshop environment.

Auxiliary Processing: Pre-screening hard impurities reduces subsequent equipment wear and maintenance costs. Uniform flour also ensures consistent taste and appearance in the finished product, enhancing brand reputation.

Vibratory Sifter Screening Flour Type Selection

When choosing a vibratory sifter screening flour, choose a rotary vibrating sieve for medium-fine flour sieving, or an ultrasonic type for high-fine flour sieving.

Circular vibrating sieves: Typically equipped with 1-5 screen layers, they can achieve multiple particle size classifications. The screens are typically fixed with a press frame or bolt-on mounting system, and feature a damping spring at the bottom to minimize vibration impact on the equipment foundation. These sieves are suitable for general flour grading, such as coarse and fine screening of common wheat flour and whole wheat flour, and for impurity removal (removing bran fragments and foreign matter from the flour). They are particularly well-suited for small to medium-sized production capacities, such as 1-15 tons/hour.

Ultrasonic vibrating screens retain the main frame of a circular vibrating screen, but with ultrasonic vibrators installed below the screens, one for each screen layer. The frequency is adjustable via an ultrasonic controller, typically between 20-40kHz. The screens typically use fine, high-precision mesh sizes of 100-400 mesh. This screen is designed for highly refined, easily agglomerated flours, such as cake flour, cake flour, and starch-based flours. Ultrasonic Vibratory Sifter Screening Flour addresses the issues of fine powder clogging and low screening efficiency, making it suitable for the food and baking industries, which require high particle size precision.

What types of flour can be screened with the Vibratory Sifter Screening Flour?

The Vibratory Sifter Screening Flour is suitable for screening a variety of flours, including all-purpose wheat flour, high-gluten flour, cake flour, bread flour, whole wheat flour, and multi-grain flours (such as corn flour and buckwheat flour).

Using the Vibratory Sifter Screening Flour is not only a fundamental step in impurity removal but also a crucial step in ensuring food safety, optimizing flour quality, and improving production efficiency. This equipment is suitable for flour mills, baking factories and food production scenarios.