Ekukhiqizweni kwephepha lanamuhla, izinto ezisetshenziswa kakhulu zokusetshenziswa yiphepha eliwudoti kanye ne-pulp emsulwa, kepha kwesinye isikhathi imfucuza yephepha ne-virgin pulp ayitholakali endaweni ethile, kunzima ukuthola noma kubiza kakhulu ukuthenga, kulokhu, umkhiqizi angacabanga sebenzisa utshani lukakolweni njengempahla eluhlaza ukuze kukhiqizwe iphepha, utshani lukakolweni luwumkhiqizo ojwayelekile wezolimo, okulula ukuwuthola, owuchichima ngenani futhi ubiza kancane.
Uma kuqhathaniswa ne-wood fiber, i-wheat straw fiber i-crispy futhi ibuthakathaka, akulula ukwenza i-bleach emhlophe, ngakho-ke ezikhathini eziningi, utshani lukakolweni luvame ukusetshenziselwa ukukhiqiza iphepha elithambile noma iphepha likathayela, enye igayo yephepha ibuye ixutshwe ne-pulp kakolweni. virgin pulp noma udoti paper ukukhiqiza izinga eliphansi ithishu iphepha noma ehhovisi paper, kodwa Fluting paper noma iphepha likathayela kubhekwa njengomkhiqizo intandokazi kakhulu, ngoba inqubo ukukhiqiza ilula kakhulu futhi ukukhiqiza izindleko zincane.
Ukuze kukhiqizwe iphepha, utshani lukakolweni ludinga ukusikwa kuqala, ubude obungama-20-40mm luyathandwa, kulula kakhulu ukuthi utshani budluliswe noma buhlanganiswe namakhemikhali okupheka, umshini wokusika utshani ucelwa ukuba wenze umsebenzi, kodwa ngokushintsha imboni yesimanje yezolimo, ukolweni uvame ukuvunwa ngemishini, kulokhu, umshini wokusika awubhekwa njengesidingo.Ngemuva kokusika, utshani lukakolweni luzodluliselwa ukuze luxube namakhemikhali okupheka, inqubo yokupheka i-caustic soda ivame ukusetshenziswa kule nqubo, ukunciphisa izindleko zokupheka, amanzi e-lime stone angabuye acatshangelwe.Ngemuva kokuthi utshani lukakolweni luxubene kahle namakhemikhali okupheka, luzodluliselwa ku-digester eyindilinga noma ichibi lokupheka elingaphansi komhlaba, ukuze uthole ukupheka okuncane okuluhlaza, ichibi lokupheka elingaphansi komhlaba liyanconywa, ukwakhiwa komsebenzi womphakathi, izindleko ezincane, kodwa ukusebenza kahle okuphansi.Ukuze uthole umthamo ophakeme wokukhiqiza, udinga ukucabangela ukusebenzisa i-digester eyindilinga noma idivayisi yokupheka ehlangene, inzuzo ukupheka kahle, kodwa-ke, izindleko zemishini zingaba phezulu futhi.I-pool yokupheka engaphansi komhlaba noma i-digester eyindilinga ixhunywe ne-steam eshisayo, ngokunyuka kwezinga lokushisa emkhunjini noma ethangini kanye nokuhlanganiswa kwe-agent yokupheka, i-lignin ne-fiber izohlukaniswa nomunye nomunye.Ngemuva kwenqubo yokupheka, utshani lukakolweni luzothululwa emkhunjini wokupheka noma ethangini lokupheka luyiswe emgqonyeni noma ithangi le-sediment elilungele ukukhipha i-fiber, umshini ovame ukusetshenziswa umshini wokushibilika, umshini wokuwasha u-pulp onesivinini esikhulu noma i-bivis extruder, kuze kube yilapho utshani lukakolweni. i-fiber izokhishwa ngokugcwele, ngemva kwenqubo yokucwenga nokuhlolwa, izosetshenziselwa ukwenza iphepha.Ngaphandle kokukhiqizwa kwephepha, i-fiber straw fiber ingasetshenziselwa ukubumba ithreyi lezinkuni noma ukubumba ithreyi lamaqanda.
Isikhathi sokuthumela: Sep-30-2022