The swing screen is designed to be transmitted to the screen net, allowing for effective cleaning and improved production capacity. It is specifically designed for fine, high-yield, and difficult-to-screen materials. With the help of a reduction gear installed on the base plate, the rotary brush rotates under the screen to efficiently clean the materials. This cleaning mechanism works best for screening spherical, crystalline, and brittle materials.
Another cleaning method used in this system is the bouncing ball cleaning method. Rubber and silica gel balls, meeting food grade standards, jump on the punching plate under the screen. These bouncing balls help reduce mesh blockage by bouncing against the metal mesh. This method is simple to operate, easy to maintain, and suitable for most granular materials.
During the usage of the swing screen, there may be instances of downtime. This can be caused by various factors such as equipment malfunction, material clogging, or maintenance requirements. It is important to address these issues promptly to ensure the smooth and continuous operation of the swing screen.
To ensure a thorough shutdown inspection of the swing screen, it is crucial to consider five key aspects. Firstly, it is essential to strictly adhere to the instructions and follow the designated steps to conclude the operation process. It is advisable not to make any changes to the prescribed steps for ending the operation. Secondly, during the inspection, it is important to meticulously clean the cabin and remove any debris present. This is crucial to avoid any potential hidden hazards that may arise due to the presence of debris. Additionally, it is necessary to keep the screen machine in a static state while running, ensuring that it is not in operation during the inspection. Thirdly, it is important to maintain a clean and tidy environment surrounding the screen machine, minimizing the accumulation of dust. It is crucial to prevent any contamination and ensure the optimal performance of the equipment. Lastly, it is vital not to place any unrelated items or objects around the screen, as this may cause hindrance or damage to the machine. By conducting the shutdown inspection with these considerations in mind, it ensures a comprehensive and safe assessment of the swing screen.
The handling capacity of the swing screen is influenced by two major factors, i.e., the motion form of the screen surface and the structural parameters of the screen surface. The way the screen surface moves affects the looseness of the material layer on the screen, which has a direct impact on the stratification and passing process. The structural parameters of the screen surface, including its size, hole size, shape, and opening rate, also play a crucial role in determining the processing capacity and screening efficiency of the screen.
In general, the size of the screen surface determines the processing capacity of the screen. A larger screen surface means a greater processing capacity. On the other hand, the size of the screen surface influences the screening efficiency of the screen. A larger screen surface means higher efficiency. The size of the screen hole affects the processing capacity per unit sieve area and the screening efficiency of the screen. A larger sieve hole means a higher processing capacity and higher efficiency.
The mesh size of the screen mainly depends on the purpose and requirements of screening. For conventional screening with larger particle size, the mesh size is generally equal to the screening particle size. But for smaller screening particle size, the mesh size should be slightly larger than the screening particle size. For approximate screening, the mesh size is much larger than the screening particle size. In summary, the motion and structure of the screen surface are critical factors that impact the handling capacity of the swing screen, and careful consideration of these factors is essential for maximizing its performance.
The shape of material that passes through round and square sieve holes tends to be more uniform compared to flake and strip particles that can easily slip out of rectangular sieve holes. This is why rectangular sieve holes are typically made smaller. However, when dealing with wet and viscous materials, arranging the long side of the rectangular sieve hole (also known as the screen gap) in the direction of material movement can help reduce obstruction on the screen. This leads to less blockage. Generally, larger mesh sizes result in higher mesh opening rates. When mesh size is fixed, a higher opening rate leads to better screening. However, the opening rate is commonly restricted by the durability of the screen surface and its service life.