Lub vijtsam yog ib qho ntawm cov feem ntawm cov khoom siv Asphalt sib tov, tab sis lub qhov screen ntawm lub vijtsam feem ntau tau muab sim thaum lub sijhawm ua haujlwm. Kuv tsis paub tias nws yog vim hais tias ntawm lub vijtsam lossis cov khoom siv, yog li kuv yuav tsum nrhiav thiab tiv thaiv nws.

Tom qab kev soj ntsuam thiab kev txheeb xyuas cov txheej txheem ua haujlwm ntawm cov chaw nres tsheb asphalt sib tov, nws tuaj yeem txiav txim siab tias lub blockage ntawm lub vijtsam me me yog tshwm sim los ntawm lub qhov me me. Yog tias cov khoom siv tau me ntsis loj dua, lawv tsis tuaj yeem hla dhau ntawm lub qhov screen zoo, ua rau txhaws. Ntxiv rau qhov laj thawj no, yog tias muaj ntau cov pob zeb loj ntawm cov pob zeb lossis ntau ntawm rab koob-zoo li lub pob zeb mus rau lub vijtsam, lub vijtsam screen yuav tseem thaiv.
Hauv qhov no, pob zeb pob zeb yuav tsis tuaj yeem raug tshuaj ntsuam tawm, thiab thaum kawg ua rau qhov zoo ntawm asphalt sib xyaw cov khoom tsis tau raws li cov cai. Txhawm rau kom zam dhau qhov kev tshwm sim no, sim siv tus hlau xaim woven npo nrog cov kev ua kom zoo dua qub ntawm lub qhov kawg ntawm lub vijtsam zoo li asphalt.