Common factors affecting the DSM starch screen

The DSM starch screen is a type of DSM screen specifically designed for the separation and dewatering of starch in industrial processes, also known as a sieve bend screen. It is widely used in starch processing plants for the production of starches such as corn starch, potato starch, or wheat starch. In starch processing operations, the efficiency and effectiveness of the DSM starch screen's wire bending are directly affected by various factors, primarily involving the following aspects:

A unit of DSM starch screen equipment

DSM starch screen

Several DSM sieve bends on the ground.

Sieve bends

Feed Pressure and Rate

The pressure and speed at which the material enters the wedge wire screen have a direct impact on screening efficiency. It is crucial to control the feed pressure within the range of 0.2 - 0.4 MPa. Higher feed pressures can improve screening efficiency, while lower pressures may lead to reduced efficiency. At the same time, ensuring the optimal feed rate is important to ensure that material is evenly distributed across the entire screen surface, avoiding overload or underutilization of the screen area.

Installation Accuracy

The nozzle of the material should be tangential to the curved surface of the screen. If the installation is not accurate enough, a proper cutting effect cannot be generated. This can lead to ineffective screening of materials on the screen surface or blockage of the gaps in the screen surface. This may cause the starch slurry to flow without resistance, resulting in what is called "sliding screen," where the screen surface loses its function to screen and dewater the material.

Fine Grinding Process Before Screening

The fine grinding before screening should not be too fine. Otherwise, finely ground residues will enter the starch milk along with the fine starch particles, increasing the content of residues in the starch milk.

Quality Assurance of Product

The quality of the screen directly affects the efficiency of the starch screen. Pay attention to aspects such as the wear resistance of the raw materials, the precision of the wire, the accuracy of the slotting, the precision of the external dimensions, and the quality of welding. Ensure all quality and precision requirements are met to avoid issues that could reduce the efficiency and lifespan of the product.

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