Optimize screen design
 
- Choose the appropriate screen hole shape: according to the material characteristics of the screen hole shape, such as square holes than round holes easier for square particles to pass through, reduce clogging.
 
- Adopt variable diameter screen mesh: make the screen mesh aperture from the feed end to the discharge end gradually become smaller, so that the material in the early screening can quickly pass through the large aperture area, reduce the chances of clogging.
 
Improvement of screening equipment
 
- Increase the vibration device: install the vibration device on the screen surface or screen box to produce high-frequency vibration, so that the material is in a loose state on the screen to prevent agglomeration, so that the particles are more likely to pass through the sieve holes.
 
- Adjust the screening angle: according to the material characteristics to adjust the angle of inclination of the screen mesh, the angle of the material slides down quickly, short residence time; angle of the material is small, long residence time, screening more fully, to find the right angle to balance the screening efficiency and effect.
 
Material pretreatment
 
- Drying materials: for wet and easily agglomerated materials, drying treatment before screening, reduce moisture, reduce viscosity, so that the material particles are dispersed, not easy to block the sieve holes.
 
- Disperse agglomerates: use dispersing equipment or pre-screening device to disperse material agglomerates in advance, so that the material can enter the screening stage with a single particle state.
 
Selection of suitable screening process
 
- Adopt multi-layer screening: use multi-layer screen, each layer of screen mesh is different, from coarse to fine graded screening, first by the upper layer of coarse screen to intercept large particles, the lower layer of fine screen to deal with small particles, to reduce the fine screen mesh clogging.
 
- Control the amount of feed: uniform and continuous feeding, to avoid overfeeding the screen overload, to ensure that the material is evenly distributed on the screen, make full use of the screen area, improve screening efficiency.
 
Regular maintenance of the screen
 
- Timely cleaning: clean up the screen mesh regularly during the screening process, and clean up the residual materials with high-pressure water gun and compressed air after shutdown to prevent the materials from drying and clogging.
 
- Inspection and replacement: regular inspection of the screen, found that the wear and tear, deformation or blockage of serious parts, timely repair or replacement, to ensure that the screen performance is stable.

In addition to the above methods, you can also add sieve aid, optimize the screen surface properties, improve the structure of the equipment and other means to prevent stainless steel screen clogging, as follows:
 
- The use of sieve aids: add an appropriate amount of sieve aids in the material, such as talcum powder, diatomaceous earth, etc.. These sieving aids can form an isolation layer on the surface of the material particles, reduce the viscosity and friction between the particles, so that the material is easier to flow, reduce particle agglomeration and clogging of the sieve holes.
 
- Optimize the screen surface properties: special treatment of the screen surface, such as the use of surface coating technology, coated with polytetrafluoroethylene and other materials with low surface energy, self-lubricating properties, so that the material is not easy to adhere to the surface of the screen, so as to reduce the occurrence of clogging. The screen surface can also be polished to reduce the surface roughness, so that the material particles are easier to pass through the sieve holes, not easy to stay.
 
- Adopt ultrasonic screening technology: install ultrasonic devices on the screening equipment, and apply high-frequency ultrasonic waves to the screen mesh. The vibration effect of ultrasonic waves can make the screen mesh produce small high-frequency vibration, effectively destroying the material in the sieve holes near the formation of adhesion layer and agglomerates, so that the material can pass through the sieve holes, significantly improve the screening efficiency and prevent clogging.
 
- Improve the structure of the screening equipment: set up a reasonable guide plate or buffer device in the screening equipment, so that the material into the screen can be evenly dispersed, to avoid the impact of the material concentrated in a certain area leading to localized clogging of the screen. Can also design self-cleaning screen structure, such as rotating screen or screen with automatic cleaning function, in the screening process through the screen's own movement or the attached cleaning device, constantly remove the material attached to the screen holes to prevent clogging.