Labarai

Ƙayyade dunƙule guda ɗaya na granulation a cikin wannan tsari: kayan abinci, shirye-shiryen narkewar da ake buƙata, nauyin huɗa, aikin hadawa, juriyar tacewa da hanyar pelletizing. Bayyana ko abincin pellet mai tsafta ne, foda, agglomerate, flake da aka wanke ko rafi da aka sake yin fa'ida. Samar da darajar guduro, yanayin gwajin MFR, danshi, gurɓatawa, filler, fitarwar manufa, motar motsa jiki, rpm, tsarin vacuum da alamun halin yanzu. Sannan za'a iya tsara dunƙule a kusa da taga kayan abu na gaske maimakon diamita na ƙima.

Zaɓi dunƙule mai busa fim a cikin wannan tsari: guduro da ƙira, ƙãre fim da tsarin Layer, aikin layi, sa'an nan dunƙule lissafi da tsarin saman. Nemi ainihin ma'aunin guduro da yanayin gwajin narke kwarara, ba kawai "LDPE," "LLDPE" ko "HDPE." Yi rikodin rabon gauraya, ƙari, abun cikin da aka sake fa'ida, fitarwa, saurin dunƙule, motar, mutu, faɗin fim da kewayon kauri. Sai kawai yanke shawarar diamita, L/D, zurfin ciyarwa, bayanin martabar narkewa, sashin ma'auni da ko shinge ko ɓangaren haɗawa ya cancanta.

Auna lalacewa azaman nau'in tushen wuri, ba kamar diamita guda ɗaya ba. Alama tashoshi axial ta hanyar ciyarwa, matsawa da yankunan awo. A kowace tasha, yi rikodin screw jirgin waje diamita da ganga ciki diamita a mahara kwana kwatance. Sannan lissafta diamitaral da radial clearance daban. Kwatanta taswirar tare da ainihin zanen da aka yarda da shi ko ƙayyadadden bayanin ƙira da aka yarda. Idan kuna da ɓangarorin da suka sawa kawai, yi wa sakamako lakabi da bayanan yanayi. Kar a gabatar da su azaman girman asali.

Maye gurbin dunƙule kawai lokacin da aka auna guntun ganga, zagaye, yanayin saman da jeri sun kasance masu dacewa da sabon dunƙule da aka tsara. Sauya sassan biyu lokacin da ganga ya girma, m, mai wankewa a gida, maki ko ya lalace wanda har yanzu sabon dunƙule zai gudana tare da wuce gona da iri ko rashin daidaituwa. Idan ba ku da ma'auni mara kyau, kada ku yi tsammani. Matsayinmu na masana'anta abu ne mai sauƙi: ba za a yi la'akari da zance-kawai a matsayin cikakken shawarwarin fasaha ba har sai an duba yanayin ganga.

Zaɓi dunƙule na al'ada don tsayayye, abincin pellet iri ɗaya da fitarwa mai matsakaici lokacin aiki mai sauƙi shine fifiko. Zaɓi shinge mai shinge lokacin da layin yana buƙatar ƙarin narkewa da ingantaccen fitarwa a mafi girma rates, musamman ga PE da PP. Zaɓi dunƙule gauraye lokacin da daidaituwar yanayin narke-zazzabi, rarraba launi ko tarwatsewar ƙari shine babban matsala. Shamaki da ayyukan haɗawa ba su keɓanta juna ba. Aluminum-roba panel guda ɗaya na Nanhaiya, alal misali, yana amfani da sashin haɗaɗɗen nau'in shinge don tallafawa narkewa, narke-zazzabi iri ɗaya da rarraba masu launi da masu hana wuta.

Screw extruder guda ɗaya yana hauhawa lokacin da abu ke gudana ta layin ya daina tsayawa. Mabuɗin gama gari sun haɗa da ciyarwar da ba ta dace ba, bambancin saurin dunƙule, yanayin zafin ganga mara ƙarfi, narkewar da ba ta cika ba ko mara ƙarfi, canjin allo ko ƙuntatawa ta mutu, lalacewa-da-ganga, da bambancin saurin ƙasa. Yi rikodin matsi na narkewa, motsi na yanzu, saurin dunƙule, yanayin yanki, ƙimar ciyarwa da saurin ƙasa akan lokaci guda kafin canza saituna. Idan matsa lamba da fitarwa suna tafiya tare, bincika hanyar extruder da kwarara. Idan yanayin extruder ya tsaya tsayin daka yayin da samfurin ya canza, fara da mutu, sanyaya, injin motsa jiki, cirewa ko winder.