IiCastables eziRefractory ze-Cement Rotary Kiln

IiCastables eziRefractory ze-Cement Rotary Kiln

1. Ifayibha yentsimbi eyomeleziweyo yokuphosa izinto ezirhangqwayo ezirhangqekayo kwiziko lesamente
Iifayibha zentsimbi ezomeleziweyo ikakhulu zazisa imicu yetsimbi enganyangekiyo enganyangekiyo kwizinto eziphathekayo, ukuze imathiriyeli ibe namandla aphezulu kunye nokumelana nokothuka kwe-thermal, ngaloo ndlela inyusa ukuxhathisa kokunxitywa kunye nobomi benkonzo yesixhobo. Isixhobo sisetyenziswa ikakhulu kwiindawo ezinobushushu obuphezulu obunganxibi njengomlomo we-onti, umlomo wokutya, i-pier engagugiyo kunye ne-boiler plant lining.

2. Izitshixo zesamente eziphantsi ezikwaziyo ukuqholeka kwiziko lesamente
I-samente ephantsi ye-refractory castables ikakhulu ibandakanya i-alumina ephezulu, i-mullite kunye ne-corundum refractory castables. Olu chungechunge lweemveliso luneempawu zamandla aphezulu, ukuchasana nokuhlambalaza, ukuxhatshazwa kokugqoka kunye nokusebenza kakuhle. Kwangaxeshanye, izinto eziphathekayo zingenziwa kwi-fast-baking-explosion-proof castables ngokweemfuno zexesha lokubhaka lomsebenzisi.

3. Amandla aphezulu e-alkali-resistant izinto zokulahla kwiziko lesamente
I-alkali-resistant-resistant castables inokuchasana kakuhle nokhukuliseko ngamagesi e-alkaline kunye ne-slag, kwaye inobomi obude benkonzo. Esi sixhobo sisetyenziswa ikakhulu kwizigqubuthelo zocango lweziko, iziko lokubola, iisistim zangaphambili, iinkqubo zolawulo, njl.

Indlela yokwakhiwa kwe-aluminiyam ephezulu ye-samente ephantsi enokuchithwa kwi-rotary kiln lining
Ulwakhiwo lwe-aluminiyam ephezulu yesamente enokuphoswa kwi-rotary kiln lining ifuna ingqalelo ekhethekileyo kwezi nkqubo zintlanu zilandelayo:

1. Ukumiselwa kwamalungu okwandisa
Ngokusekelwe kumava angaphambili okusebenzisa i-aluminium ephezulu ye-samente ephantsi, amajoyina okwandisa yinto ebalulekileyo echaphazela ubomi benkonzo ye-rotary kiln castable linings. Amalungu okwandisa ngexesha lokugalelwa kwe-rotary kiln linings amiselwa ngolu hlobo lulandelayo:

(1) I-Circumferential joints: amacandelo e-5m, i-20mm i-aluminium silicate fiber ivakalelwa ukuba ifakwe phakathi kwee-castables, kwaye iifayili zihlanganiswe emva kokwandiswa ukuze kuthintele uxinzelelo lokwandisa.

(2) Amalungu aMcaba: Yonke imicu emithathu yokucasta idityaniswe nge-100mm yeplywood enzulu kwicala langaphakathi le-circumferential, kwaye ikhonkco ishiywe ekupheleni kokusebenza, kwimicu emi-6 iyonke.

(3) Ngexesha lokugalela, izikhonkwane zokukhupha ezingama-25 zisetyenziswa kwi-square meter nganye ukukhulula umlinganiselo othile woxinzelelo lokwandisa ngelixa udinwa i-oven.

2. Ukumiselwa kobushushu bokwakha
Ubushushu obufanelekileyo bokwakhiwa kwe-aluminiyam ephezulu ye-samente ephantsi kwe-castables yi-10 ~ 30 ℃. Ukuba ubushushu be-ambient buphantsi, la manyathelo alandelayo kufuneka athathwe:

(1) Vala imeko-bume engqongileyo yokwakha, yongeza izixhobo zokufudumeza, kwaye uthintele ngokungqongqo umkhenkce.

(2) Sebenzisa amanzi ashushu kwi-35-50 ℃ (emiselwe kukungcangcazela kovavanyo lokugalela kwindawo) ukuxuba imathiriyeli.

3. Ukuxuba
Gqiba isixa sokuxuba ngexesha elinye ngokomthamo womxube. Emva kokuba isixa sokuxuba sinqunywe, yongeza izinto zokuphosa kwisikhwama kunye nezongezo zephakheji ezincinci kwisikhwama kwi-mixer ngexesha elifanayo. Okokuqala qalisa umxube wokomisa-umxube we-2 ~ 3 imizuzu, emva koko udibanise i-4/5 yamanzi alinganisiweyo kuqala, ugxobhoze imizuzu emi-2 ~ 3, kwaye emva koko umisele i-1/5 eseleyo yamanzi ngokuhambelana ne-viscosity yodaka. . Emva kokuxuba ngokupheleleyo, ukuthululwa kovavanyo kuqhutyelwa, kwaye ubuninzi bamanzi abongeziweyo buchongwa ngokudibanisa ne-vibration kunye ne-slurry situation. Emva kokuba ubungakanani bamanzi bongeziweyo bunqunywe, kufuneka ilawulwe ngokungqongqo. Ngelixa kuqinisekiswa ukuba udaka luyakwazi ukungcangcazela, kufuneka kongezwe amanzi amancinci kangangoko (ireferensi yokongeza amanzi kolu daka yi-5.5% -6.2%).

4. Ukwakha
Ixesha lokwakhiwa kwe-aluminium ephezulu ye-samente ephantsi kwe-samente i-castable malunga nemizuzu engama-30. Izinto eziphelelwe ngamanzi okanye ezidibeneyo azikwazi ukuxutywa namanzi kwaye kufuneka zilahlwe. Sebenzisa intonga engcangcazelayo ukuze ungcangcazele ukuze ufezekise ukuxinana okuludaka. Intonga yokungcangcazela kufuneka igcinwe ukuze kuthintelwe intonga esecaleni ekubeni isebenze xa intonga engcangcazelayo ingaphumeleli.
Ukwakhiwa kwezinto ezikhatywayo kufuneka kuqhutywe kwimicu kunye ne-axis ye-rotary kiln. Ngaphambi kokuthululelwa kwe-strip nganye, indawo yokwakha kufuneka ihlambuluke kwaye akukho thuli, i-welding slag kunye nezinye i-debris kufuneka zishiywe. Ngexesha elifanayo, khangela ukuba i-welding ye-anchor kunye nonyango lwepeyinti ye-asphalt yomhlaba ikhona. Ngaphandle koko, amanyathelo okulungisa kufuneka athathwe.
Kulwakhiwo lwe-strip, ulwakhiwo lwe-strip casting body kufuneka lugalelwe ngokuvulekileyo ukusuka kumsila we-oven ukuya kwintloko ye-oven emazantsi omzimba we-onti. Ukuxhaswa kwetemplate kufuneka kuqhutywe phakathi kwe-anchor kunye neplate yensimbi. Isitya sentsimbi kunye ne-anchor zifakwe ngokuqinileyo ngeebhloko zokhuni. Ubude befom yenkxaso yi-220mm, ububanzi buyi-620mm, ubude buyi-4-5m, kwaye i-angle yeziko yi-22.5 °.
Ukwakhiwa komzimba wesibini wokuphosa kufuneka kuqhutywe emva kokuba umcu ugqityiwe kwaye isikhunta sisusiwe. Kwelinye icala, itemplate eyenziwe nge-arc isetyenziselwa ukuvala ukuphosa ukusuka kwintloko ye-kiln ukuya kumsila we-kiln. Eminye iyafana.
Xa i-casting material ishukunyiswa, udaka oluxubileyo kufuneka longezwe kwi-mold yesondo ngelixa lingcangcazela. Ixesha lokungcangcazela kufuneka lilawulwe ukuze kungabikho amaqamza acacileyo kumphezulu womzimba wokuphosa. Ixesha lokudiliza kufuneka ligqitywe bubushushu bendawo yolwakhiwo. Kuyimfuneko ukuba kuqinisekiswe ukuba ukuchithwa kuqhutyelwa emva kokuba izinto zokuphosa zigqityiwe kwaye zinamandla athile.

5. Ukubhaka i-lining
Umgangatho wokubhaka we-rotary kiln lining uchaphazela ngokuthe ngqo ubomi benkonzo ye-lining. Kwinkqubo yokubhaka yangaphambili, ngenxa yokungabikho kwamava avuthiweyo kunye neendlela ezilungileyo, indlela yokujova ioli enzima yokutshisa isetyenziswe kwiinkqubo zokubhaka eziphantsi, ukushisa okuphakathi kunye nokushisa okuphezulu. Iqondo lobushushu bekunzima ukulilawula: xa iqondo lobushushu lifuna ukulawulwa ngaphantsi kwe-150℃, ioli enzima akulula ukuyitshisa; Xa iqondo lobushushu lingaphezulu kwe-150℃, isantya sokufudumeza sikhawuleza kakhulu, kwaye ubushushu bokusasazwa kwiziko alilingani kakhulu. Ubushushu be-lining apho ioli enzima itshiswe malunga ne-350 ~ 500 ℃ phezulu, ngelixa ubushushu bezinye iindawo buphantsi. Ngale ndlela, i-lining ilula ukuqhuma (i-lining yangaphambili yokuphosa iqhume ngexesha lenkqubo yokubhaka), echaphazela ubomi benkonzo ye-lining.