All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
(9743 products available)
A sieve bend screen, also known as side hill screens, DSM screens, static screens, and run down screens, are used in solid-liquid and solid-gas separation in the mining and water treatment industries. There are two main types of DSM screens which are the curved and flat sieve bend screens. Curved sieve bend screen is the most common design for sieve bend screens. It has a curved or arc shape with a sloped surface formed by wedge wires. The curved design allows the sloped surface to have a larger surface area, which can efficiently separate fine particles from liquids. It is suitable for high-efficiency classification and dehydration, and is often used in coal preparation plants, drainage systems, and other fields.
On the other hand, flat sieve bend screens have a flat surface made of wedge wires. The flat design is used for specific applications where a flat surface is required for screening purposes. It is more rigid and robust, making it suitable for heavy-duty scalping and dewatering in various industries.
There are also vibrating sieve bend screens. They are similar to static sieve bend screens but have a vibrating mechanism. The vibrating motion enhances the screening process by improving the fluidity of the materials being separated and increasing the efficiency of the separation process. Vibrating sieve bend screens are used in applications that require a higher level of precision and control, such as in the food processing and pharmaceutical industries.
There are several standard specifications for the sieve bend screen that buyers may want to check out.
These are the materials usually used for the sieve bend screen:
Carbon steel: A material commonly used in manufacturing for its robustness and resistance to abrasion and impact.
Stainless steel: This material is resistant to corrosion and is often used in industries with high hygiene requirements.
Polyurethane: A material with excellent wear resistance and elastic properties.
Cross rod pitch: The distance between the cross rods of the screen can affect its strength and ability to pass materials.
Open area percentage: The open area percentage of the curved screen is related to the screen's ability to pass materials. The larger the open area, the easier it is to pass materials, but the lower the strength.
Slot size: The slot size of the curved screen determines the fineness of the separated materials. The smaller the slot size, the finer the separation.
Regular maintenance of the sieve bend screen is crucial to ensure its performance and prolong its service life. Here are some general maintenance tips for the curved screen:
Regular inspection: Check the screen surface for wear, damage, or blockages, and promptly address any issues found.
Cleaning: Remove any material build-up or debris on the screen to prevent blockages and maintain effective screening.
Lubrication: For some sieve bend screens with movable parts, apply lubricant to ensure smooth operation and reduce friction and wear.
Tensioning: Check the tension of the curved screen and make any adjustments as needed to ensure proper screening and avoid sagging or vibration.
Corrosion protection: If the curved screen is made of corrosion-resistant material, regularly apply anti-corrosion coatings to protect the screen from damage.
These are just some of the many maintenance tips for the sieve bend screen. Buyers can refer to the manufacturer's specific recommendations based on different materials and designs to develop a suitable maintenance plan.
The applications of sieve bend screens are as follows
Waste water treatment
In the waste water treatment industry, the sieve bend screen is used for the separation of solid and liquid substances. The screen assists in the removal of debris, sand, and other solid particles from the wastewater, making it a suitable solution for municipal wastewater treatment plants, industrial effluent treatment, and other treatment facilities.
Mining and mineral processing
During the mining and mineral processing industry, the sieve bend screen is utilized in a variety of ways. In the initial phase of processing, it can be used to pre-treat raw materials, remove oversized particles, or classify material before further treatment. It can also be used to dewater solid material, separating valuable minerals from gangue, tailings, or slurry. Additionally, the screen can be used to recover or concentrate minerals by fine particle separation or making a classification based on particle size.
Food and beverage processing
In the food and beverage processing industry, the sieve bend screen is used for separating and classifying solid particles in food products. It can also be used for dewatering, sizing, or clarifying liquids, such as fruit juices, oils, or beverages. In the food industry, it is common to see the use of sieve bend screens in flour mills, breweries, or sugar refineries to filter and purify food products.
Other industries
The sieve bend screen can be used in other industries as well. For example, in the chemical and pharmaceutical industries, the screen can be used to filter and purify chemicals, pharmaceuticals, or other products. It can also be used for water treatment and environmental protection to purify drinking water or treat industrial wastewater.
Choosing the right sieve bend screen for a particular project or application requires careful consideration of several key factors.
When selecting a wedge wire sieve bend screen, it is important to consider the nature of the materials being processed. Different materials will have varying hardness, corrosion resistance, chemical stability, and other characteristics. This means that certain materials may be more suitable for some applications than others. For example, in an environment with high humidity, a stainless-steel screen would be more appropriate.
Considering the specific application is also essential. This includes factors such as the type of material being separated, the desired particle size, the flow rate of material through the screen, and other application requirements. For example, an application that requires high precision separation of fine particles may benefit from a sieve bend screen with a finer opening size.
The size and dimensions of a sieve bend screen are also important to consider. This includes the screen's length, width, thickness, as well as the curvature of the screen. It is important to choose a screen size that is suitable for the machine or equipment it will be used with. Additionally, ensuring the screen's dimensions are optimized for the desired separation performance and material flow is also crucial.
It is important to select a sieve bend screen manufactured with high-quality standards. This is because the screen's performance and longevity are directly impacted by the quality of its construction. Additionally, choosing a well-made screen that is manufactured from a material suitable for the application will help ensure that the screen can effectively and efficiently perform its intended task.
Q1: What is the benefit of using a sieve bend screen?
A1: A sieve bend screen offers the benefit of increasing the amount of material that can pass through a strainer or filter. This occurs without compromising the quality of the end product. It also ensures that the production process is efficient and streamlined.
Q2: What are the different materials used for sieve bend screens?
A2: Common materials for the sieve bend screens include stainless steel, polyurethane, and wedge wire. Each material has its benefits, such as corrosion resistance, durability, and suitability for different applications.
Q3: Can a sieve bend screen be used in wet applications?
A3: Yes, the sieve bend screen functions well in wet applications. It is perfect for dewatering and sludge dewatering, among other wet processes. The curved design allows for effective drainage and efficient separation of solids and liquids.
