Abubuwan da ake amfani da su na extrusion na taki na yau da kullun sun haɗa da granulators mai jujjuyawar extrusion biyu da lebur (zobe) mutun ƙwanƙwasa.A lokacin sarrafa takin mai magani, waɗannan nau'in granulators na iya ƙara abubuwan da ake buƙata na nitrogen kamar yadda ake bukata, wasu kuma suna amfani da urea a matsayin tushen abubuwan nitrogen, wanda ke iya ɗaukar danshi cikin sauƙi a cikin iska kuma ya sa barbashi na takin zamani su manne tare.Sabili da haka, ana cewa sau da yawa cewa nau'i mai nau'i biyu na extrusion granulator shine busassun foda granulator, wanda yana da tasiri mai kyau akan sarrafa granules don albarkatun kasa tare da danshi na kasa da 10%.Don kayan rigar, dole ne a aiwatar da fasahar hana taurin gaske.Don ajiya na granules taki dauke da danshi a matsayin albarkatun kasa na takin mai magani, wajibi ne don kauce wa hardening.
Ka'ida da buƙatun ruwa na fili taki extrusion granulator sarrafa granules
Ka'idar aiki na granulator extrusion shine mafi yawan busassun foda a matsayin babban kayan albarkatun kasa.Lokacin da aka matse kayan da ke da ƙarfi, wani ɓangare na ɓarna yana murƙushe, kuma foda mai kyau ya cika rata tsakanin sassan.A wannan yanayin, idan haɗin sinadarai na kyauta akan sabon saman da aka samar ba zai iya cika da sauri da atoms ko kwayoyin halitta daga yanayin da ke kewaye ba, sabbin abubuwan da aka haifar suna haɗuwa da juna kuma suna samar da haɗin gwiwa mai ƙarfi.Domin extrusion na abin nadi, nadi fata yana da wani mai siffar zobe kishiyar tsagi, wanda aka extruded zuwa mai siffar zobe siffar, da kuma barbashi extruded da lebur (zobe) mutu ne columnar.Extrusion granulation yana buƙatar ɗanɗanon abun ciki kaɗan.Idan danshi ya yi yawa, ya zama dole don ƙara tsarin bushewa zuwa fasahar sarrafawa.
Magani ga mummunan sakamako na nau'in shayar da danshi tushen nitrogen a cikin tsarin granulation na fili
Matsakaicin taki a cikin tsarin granulation na fili shine mafi yawan yawan ruwa da ke haifar da tushen urea na nitrogen.Maganar injiniya, farawa da saurin "ƙonawa sannu a hankali" na takin mai magani ba sa karuwa tare da karuwar ammonium nitrate da potassium chloride abun ciki.Misali, cakuda mai dauke da 80% ammonium nitrate da 20% potassium chloride baya konewa, amma ya kunshi Cakudadden kasa diatomaceous 30%, 55% ammonium nitrate, da 15% potassium chloride yana samar da “jinkirin konewa”.
Abubuwan da aka haɗa tare da urea a matsayin tushen nitrogen suna da babban hygroscopicity da ƙarancin laushi;biuret da adducts suna samuwa cikin sauƙi lokacin da yawan zafin jiki ya yi girma;urea za a yi amfani da ruwa lokacin da zafin jiki ya yi girma, yana haifar da asarar ammonia.
Wannan ya zama dole don warware babban abun ciki na ruwa wanda tushen nitrogen ya haifar da ruwa.Rage tushen nitrogen Lokacin da calcium superphosphate ya wanzu, phosphorus mai narkewa da ruwa zai ragu;Lokacin da ake samar da takin mai magani na urea-common calcium superphosphate, dole ne a yi pretreated na kowa superphosphate, kamar ammonium, wanda zai iya kawar da adducts Generate, ko ƙara calcium magnesium phosphorus don neutralize da free acid na superphosphate, da kuma maida da free ruwa zuwa crystal ruwa, inganta samfurin. inganci, ko ƙara ammonium sulfate, wanda zai iya rage danshi na samfurin da aka gama kuma ya ƙarfafa taurin samfurin da aka gama;lokacin da akwai sinadarin chlorine Lokacin da aka canza ammonium, urea da chlorine suna yin adduct, wanda ke ƙara haɓakar crystallization, wanda ke sa takin mai sakewa cikin sauƙi don haifar da haɓakar samfuran da aka gama yayin ajiya;don haka, takin mai magani tare da urea a matsayin tushen nitrogen ya kamata ya ba da kulawa ta musamman ga tsarin bushewa da sanyaya.Misali, zafin bushewa bai kamata ya yi yawa ba, lokacin bushewa bai kamata ya yi tsayi da yawa ba, abubuwan da ke cikin damshin da aka kayyade a cikin ingancin yakamata a cika su, abubuwan narkewa yayin aikin samarwa yakamata a kauce masa, kuma kada a ajiye caking. a lokacin tsarin ajiya.
Abubuwan da ke sama sune dalilai na babban danshi a cikin tsarin granulation na fili na taki granulator, wanda ke haifar da ƙaddamarwa.Babban hanyar da za a guje wa ƙwanƙwasa shine amfani da tsarin bushewa.Pretreatment na kayan, Bugu da kari na abubuwa da sauran hanyoyin, don gane da aiki da kuma wadanda ba halakar da adana fili taki barbashi.
Lokacin aikawa: Dec-10-2022
