Factors Affecting the Use of Polyurethane Screen
2026-08-28
Inappropriate Choice
According to its use, it can be divided into dewatering screen, demediating screen and material classification screen.
According to its raw material components can be divided into polyester type or poyether type screen.
According to the fixingmethod of the vibrating screen, it can be divided into buckle type, bolt type and tension type screen.
The choice of poyurethanescreen should be selected according to the use of the screen, manly whether the screen is used for classification or dehydration.The screen raw materials selected for wet screening and dry screening are diferent, and poyether poyurethane screens withwater screening should be selected to avoid the phenomenon of reduced life of the screen due to hydrolysis.
Polyester typepolyurethane screen should be used for dry screening and screening of buk materials, which has better wear resistance andImpact resistance and can eftectively improve the lite of the screen But also according to the size of the screen aperure tochoose the screen device construction, needle on the large hole (proposed aperture of more than 6omm) screen proposed theuse of bolt type fixed structure, because the large aperture of the screen to dispose of the material is relatively large, the impacton the screen surface is large, other construction methods of the screen fixed method is easy to loose, the screen loose and thesupport beam knock each other, Resulting in shorter screen life.
Unreasonable Use
Ater using the corect poyurethane screen, Is also necessary to use reasonable use to ensure that the pertormance of thepolyurethane screen can be played wel, and the lfe can be guaranteed, but many users are easy to ignore this pont in theprocess of using the poyurethane screen.
For example, the tensioned screen is easy to be smashed loose by large pleces ofmateral in the process of use, and itIs necessary to screw te tignht bolt regulary. I the tensioning bolt is loose and not tightenedfor a long time, itwilllead to knocking between the screen and the support bar, aftecting the life of the screen.
At the same time.there is a feeding port design, itis proposed that the feeding method should not be vertical screen surace, the feeding directionis incined along the logistics direction and the feeding height is proposed notto exceed 40omm. to avoid the impact force is toolarge to break the screen.
For complex working environments, the metal skeleton surface should be stopped for sandblastingdisposal, used to remove the oll and rust stains on the surface, activate the surface, and expand the bonding area The steelmold is put into the metal skeleton ater the outer release treatment (coated with release agent. the platform is heated to 11o°Cand the mold temperature is about 8o°C. Polyurethane screen before pouring should do the corresponding mold and skeletondisposal, whether it is the temperature or the oll stain on the surtace of the skeleton, should be disposed of accordingly. if theextemal oll stain disposal is improper, affecting the adhesion of the skeleton and poyurethane, easy to fall, unreasonabletemperature control, willead to the pouring of bubbles or burned out and other conditions, resuting in afecting the life of thepolyurethane screen.
These are the factors that affect the life of poyurethane screen, we all know that when the life is affected,the more aspects ofthe pertormance of the product are not as good as before. In addition, once the use of poyurethane screen problems, for the useof the project will cause obstacles.After all, polyurethane screen is an indispensable main equipment in beneficiation andclassification operations, and the factors affecting its service life must be avoided as far as possible when in use, otherwise theperformance of the affected equipment will be reduced.
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