The selection and replacement of screen mesh for vibration screening machine are key steps to ensure screening efficiency and normal operation of the equipment. Here are detailed answers to these two aspects:

1、 Selection of vibrating screening machine screen mesh

Material selection:

Metal mesh: Common materials include stainless steel, high manganese steel, low carbon steel, high carbon steel, etc. Metal mesh has high strength and wear resistance, making it suitable for harsh working conditions and heavy load situations.

Non metallic mesh: mainly made of materials such as polyurethane, nylon, rubber, etc. Non metallic screen mesh has the advantages of light weight and low noise, making it more suitable for occasions with high environmental performance requirements.

Specific type selection:

Polyurethane rubber screen: Low strength but high toughness, suitable for resisting damage caused by aggregate falling. However, its low porosity may lead to a decrease in screening efficiency.

Welded manganese steel screen mesh: With high strength, strong impact resistance, and high porosity, it is suitable for screening operations in large mines, coal and other industries.

Steel plate screen: Made of high-quality steel with good wear resistance, but relatively weak impact resistance.

Square steel screen mesh: With good strength, the opening rate and screening rate are effectively guaranteed, making it suitable for various screening occasions.

Structure selection:

Choose a sieve with a thicker wire diameter to increase the strength and durability of the sieve.

Ensure that the aperture of the sieve is standard and uniform to improve screening accuracy and efficiency.

The mesh with knots on both sides of the screen is less likely to detach due to vibration, enhancing the stability of the screen.

2、 Replacement of vibrating screening machine screen mesh

Preparations:

Turn off the power of the vibration screening machine and ensure that the equipment is in a shutdown state.

Prepare the necessary tools, such as screwdrivers, wrenches, etc.

Dismantling the old screen mesh:

According to the specific structure of the equipment, loosen the screws or clamps that fix the screen mesh.

Carefully remove the old sieve from the equipment to avoid damaging other parts of the equipment.

Install new screen mesh:

Place the new sieve on the equipment to ensure that the aperture of the sieve matches the screening requirements of the equipment.

Use screws or clamps to secure the new screen to the equipment, ensuring that the screen is stable and not loose.

Inspection and debugging:

After installation, check if the screen mesh is installed correctly to ensure there is no looseness or damage.

Start the vibration screening machine and conduct a no-load trial run to observe the operating status and screening effect of the screen mesh.

Notes:

When replacing the screen, protective equipment such as gloves and masks should be worn to avoid injury or inhalation of dust.

When replacing the screen mesh, attention should be paid to the cleanliness and maintenance of the equipment to ensure that it is in good working condition.

In short, the selection and replacement of the screen mesh of the vibration screening machine are key steps to ensure the normal operation of the equipment and screening efficiency. When selecting a sieve, factors such as material, type, and structure should be comprehensively considered; When replacing the screen, the correct operating steps and precautions should be followed to ensure the correct installation of the screen and stable operation of the equipment.