Iigranulator eziqhelekileyo zokukhupha izichumisi ziquka iigranulator eziqengqelekayo ezimbini kunye neegranulator ezithe tyaba (eziyindandatho) ezidityanisiweyo. Ngexesha lokucubungula izichumisi ezidityanisiweyo, ezi granulator zinokunyusa izinto zenitrogen ngokweemfuno, kwaye ezinye zisebenzisa i-urea njengomthombo wezinto zenitrogen, ezinokufunxa lula umswakama emoyeni kwaye zibangele ukuba amasuntswana ezichumisi ezidityanisiweyo anamathele. Ke ngoko, kudla ngokuthiwa igranulator eqengqelekayo ezimbini yigranulator yomgubo owomileyo, enefuthe elingcono ekucubunguleni iigranule zezinto ezikrwada ezinomthamo womswakama ongaphantsi kwe-10%. Kwizinto ezimanzi, kufuneka kwenziwe iteknoloji efunekayo yokulwa nokuqina. Ukugcina iigranule zesichumisi eziqulethe umswakama njengezinto ezikrwada zezichumisi ezidityanisiweyo, kuyimfuneko ukuphepha ukuqina.
Umgaqo kunye neemfuno zamanzi zeegranules zokucubungula i-granule ze-extrusion fertilizer extrusion
Umgaqo osebenzayo we-extrusion granulator ikakhulu ngumgubo owomileyo njengezinto eziphambili zokwenza izinto. Xa izinto ezibuthathaka zicinezelwe, inxalenye yamasuntswana iyatyunyuzwa, kwaye umgubo ocolekileyo uzalisa izithuba phakathi kwamasuntswana. Kwimeko enjalo, ukuba iibhondi zeekhemikhali ezikhululekileyo kumphezulu osandul' ukuveliswa azikwazi ukugcwala ngokukhawuleza ngeeathomu okanye iimolekyuli ezivela emoyeni ojikelezileyo, iindawo ezisandul' ukuveliswa ziyadibana kwaye zenze amabhondi aqinileyo okuhlanganisa. Kwi-extrusion ye-roller, ulusu lwe-roller lunomjelo ochaseneyo ojikelezayo, okhutshwa ube yimo ye-spherical, kwaye amasuntswana akhutshwe yi-flat (ring) die akwi-columnar.I-extrusion granulation ifuna umswakama ophantsi. Ukuba umswakama uphezulu kakhulu, kuyimfuneko ukongeza inkqubo yokomisa kwiteknoloji yokucubungula.
Isisombululo kwiziphumo ezibi zokufunxwa komswakama ngumthombo we-nitrogen kwinkqubo yokuxubana kwesichumisi esidityanisiweyo
Eyona nto iphambili kwinkqubo yokudibanisa isichumisi esidityanisiweyo ikakhulu kubuninzi bamanzi abangelwa ngamanzi afunxa i-urea evela kwi-nitrogen. Ngokwendlela yokusebenza, ukuqaliswa kunye nesantya "sokutshisa kancinci" kwezichumisi ezidityanisiweyo asikhuli ngokwanda komxholo we-ammonium nitrate kunye ne-potassium chloride. Umzekelo, umxube oqulethe i-80% ye-ammonium nitrate kunye ne-20% ye-potassium chloride awutshi, kodwa uqulethe umxube we-30% ye-diatomaceous earth, i-55% ye-ammonium nitrate, kunye ne-15% ye-potassium chloride ivelisa "ukutsha kancinci" okunamandla.
Amasuntswana esichumisi esidityanisiweyo ane-urea njengomthombo we-nitrogen ane-hygroscopicity ephezulu kunye nendawo yokuthamba ephantsi; i-biuret kunye ne-adducts zenzeka lula xa ubushushu buphezulu; i-urea iya kufakelwa i-hydrolyzed xa ubushushu buphezulu, nto leyo ekhokelela ekulahlekelweni yi-ammonia.
Oku kuyimfuneko ukusombulula umxholo ophezulu wamanzi obangelwa ngamanzi afunxa umthombo we-nitrogen. Ukunciphisa umthombo we-nitrogen Xa kukho i-calcium superphosphate, i-phosphorus enyibilikayo emanzini iya konakala; xa kuveliswa izichumisi ze-urea-common calcium superphosphate compound, i-common superphosphate kufuneka inyangwe kwangaphambili, njenge-ammoniation, enokuphelisa i-adducts. Yenza, okanye yongeze i-calcium magnesium phosphorus ukuze inciphise i-free acid ye-superphosphate, kwaye iguqule amanzi akhululekileyo abe ngamanzi ekristale, iphucule umgangatho wemveliso, okanye yongeze i-ammonium sulfate, enokunciphisa ukufuma kwemveliso egqityiweyo kwaye yomeleze ubulukhuni bemveliso egqityiweyo; xa kukho i-chlorine Xa i-ammonium iguqulwa, i-urea kunye ne-chlorine zenza i-adduct, eyonyusa i-crystallization, eyenza ukuba isichumiso esivuselelayo sibe lula ukubangela ukuhlanganiswa kwemveliso egqityiweyo ngexesha lokugcina; ke ngoko, isichumiso se-compound esine-urea njengomthombo we-nitrogen kufuneka sinikele ingqalelo ekhethekileyo kwinkqubo yokomisa nokupholisa.Umzekelo, ubushushu bokomisa akufuneki bube phezulu kakhulu, ixesha lokomisa akufuneki libe lide kakhulu, umxholo womswakama ochazwe kumgangatho womgangatho kufuneka ufezekiswe, into yokunyibilika ngexesha lenkqubo yemveliso kufuneka ithintelwe, kwaye akufuneki kugcinwe i-caking ngexesha lenkqubo yokugcina.
Ezi zingentla zezona zizathu zokufuma okuphezulu kwinkqubo yokuxubana kwe-granulation ye-compound fertilizer granulator, ebangela ukuxinana. Indlela ephambili yokuphepha ukuxinana kukusebenzisa inkqubo yokomisa. Unyango lwangaphambi kokusetyenziswa kwezinto, ukongezwa kwezinto kunye nezinye iindlela, ukuze kufezekiswe ukugcinwa kwamasuntswana e-compound fertilizer.
Ixesha lokuthumela: Disemba-10-2022
