Lub nruas npo yog tsim rau kev tshuaj xyuas cov khoom ntawm ntau yam khoom thiab cov ntaub ntawv ntub thiab yooj yim-rau-thaiv xws li thee, coke, txiv qaub, thiab lwm yam, thiab gravel teb, yog li nws tseem hu ua mining nruas screen. Qhov siab tshaj plaws ntawm cov khoom soj ntsuam yog tsawg dua 100mm, qhov nruab nrab qhov loj yog 10-50mm, thiab qhov loj tshaj plaws tuaj yeem ncav cuag tsawg dua lossis sib npaug li 3 hli.
1. Siv los muab cov pob zeb loj thiab me hauv cov pob zeb. Thiab cais cov av thiab pob zeb hmoov;
2. Siv rau kev sib cais ntawm cov xuab zeb thiab pob zeb hauv cov xuab zeb;
3. Siv rau kev sib cais ntawm cov pob zeb thiab cov hmoov coal thiab cov thee ntxuav (cov khoom siv ntawm cov thee ntxhua khaub ncaws) hauv kev lag luam thee;
4. Siv rau kev muab qhab nia loj thiab me me thiab sib cais cov hmoov hmoov hauv kev lag luam tshuaj thiab kev lag luam ntxhia.
