IiCastables eziRefractory zeSamente Rotary Kiln

IiCastables eziRefractory zeSamente Rotary Kiln

1. Iintsimbi eziqinisiweyo zefayibha yentsimbi eziqinileyo ezinganyangekiyo kwi-oven yesamente
Ii-castables eziqinisiweyo zefayibha yentsimbi ngokuyintloko zingenisa iifayibha zentsimbi engagqwaliyo ezingatshiyo kwizinto, ukuze izinto zibe namandla aphezulu kunye nokumelana nobushushu, ngaloo ndlela zonyusa ukumelana nokuguguleka kunye nobomi benkonzo yezinto. Ezi zinto zisetyenziselwa ikakhulu iindawo ezimelana nokuguguleka ezishushu kakhulu ezifana nomlomo we-oven, umlomo wokutya, i-pier engagugiyo kunye ne-lining yebhoyila yesityalo samandla.

2. Ii-castables ezinganyangekiyo zesamente ezisezantsi kwi-oven yesamente
Ii-castables ezinganyangekiyo zesamente ephantsi ziquka ii-castables ezinganyangekiyo ze-alumina ephezulu, i-mullite kunye ne-corundum. Olu luhlu lweemveliso luneempawu zokuqina okuphezulu, ukulwa nokukhuhla, ukumelana nokuguguleka kunye nokusebenza kakuhle. Kwangaxeshanye, izinto zingenziwa ii-castables ezinganyangekiyo ekubhakeni ngokukhawuleza ngokweemfuno zexesha lokubhaka lomsebenzisi.

3. Ii-castables ezinamandla aphezulu ezimelana ne-alkali kwi-oven yesamente
Ii-castables ezinamandla aphezulu ezimelana ne-alkali zinokumelana kakuhle nokukhukuliseka yi-alkaline gases kunye ne-slag, kwaye zihlala ixesha elide. Ezi zinto zisetyenziselwa ikakhulu izigqubuthelo zeengcango ze-oven, ii-ovens ezibolayo, iinkqubo ze-preheater, iinkqubo zolawulo, njl.njl. kunye nezinye ii-linings ze-oven zoshishino.

Indlela yokwakha i-castable ye-aluminium ephezulu enesamente ephantsi ye-rotary oven ye-rotary oven
Ukwakhiwa kwe-castable ye-aluminium ephezulu enesamente ephantsi ye-oven ejikelezayo kufuna ingqalelo ekhethekileyo kwiinkqubo ezintlanu ezilandelayo:

1. Ukumisela iindawo zokwandisa
Ngokusekelwe kumava angaphambili okusebenzisa ii-castables ze-aluminium ephezulu ezinesamente encinci, ii-expansion joints ziyinto ephambili echaphazela ubomi benkonzo yee-castable linings ze-rotary kiln. Ii-expansion joints ngexesha lokuthululwa kwee-linings ze-rotary kiln zimiselwa ngolu hlobo lulandelayo:

(1) Amacandelo ajikelezayo: amacandelo angama-5m, ifeliti yefayibha ye-aluminium silicate engama-20mm ibekwe phakathi kwezinto eziphoswayo, kwaye iifayibha ziyaxinana emva kokwandiswa ukuze kuthintelwe uxinzelelo lokwandiswa.

(2) Izihlanganisi ezithe tyaba: Zonke iziqwenga ezintathu zesixhobo esithungwayo zihlotshiswe ngeplywood enzulu eyi-100mm kwicala elingaphakathi elijikelezileyo, kwaye ijoyinti ishiywe ekupheleni kokusebenza, ukuze kubekho iziqwenga ezi-6 zizonke.

(3) Ngexesha lokugalela, kusetyenziswa iiphini zokukhupha umoya ezingama-25 ngemitha yesikwere ukukhulula umlinganiselo othile woxinzelelo lokwandisa ngelixa kucinywa i-oven.

2. Ukumisela ubushushu bokwakha
Ubushushu obufanelekileyo bokwakha bezinto ezisetyenziswa kwi-castables ze-aluminium ephezulu ezinesamente ephantsi yi-10~30℃. Ukuba ubushushu obuphakathi buphantsi, kufuneka kuthathwe la manyathelo alandelayo:

(1) Vala indawo yokwakha engqongileyo, yongeza izixhobo zokufudumeza, kwaye uthintele ngokungqongqo ukubanda.

(2) Sebenzisa amanzi ashushu kwi-35-50℃ (eyamiselwa kukungcangcazela kovavanyo lokuthulula kwindawo leyo) ukuxuba izinto.

3. Ukuxuba
Misela ubungakanani bokuxuba ngexesha elinye ngokwendlela yomthamo womxube. Emva kokuba ubungakanani bokuxuba bufunyenwe, yongeza izinto zokubumba ezikwingxowa kunye nezongezo ezincinci zephakheji ebhegini kwisixhobo sokuxuba ngaxeshanye. Qala umxube womise imizuzu emi-2 ukuya kweyesi-3, uze wongeze i-4/5 yamanzi alinganisiweyo kuqala, uvuselele imizuzu emi-2 ukuya kweyesi-3, uze umisele i-1/5 yamanzi aseleyo ngokwendlela umdaka oqinileyo ngayo. Emva kokuxuba ngokupheleleyo, kugalelwa uvavanyo, kwaye ubungakanani bamanzi ongezelelweyo bumiselwa kunye nemeko yokungcangcazela kunye nokutyibilika. Emva kokuba ubungakanani bamanzi ongezelelweyo buqinisekisiwe, kufuneka bulawulwe ngokungqongqo. Ngelixa uqinisekisa ukuba i-slurry inokungcangcazela, kufuneka kongezwe amanzi amancinci kangangoko (ubungakanani bamanzi obuqhelekileyo bokongeza kule nto ityibilikayo yi-5.5%-6.2%).

4. Ulwakhiwo
Ixesha lokwakhiwa kwe-castable ye-aluminium ephezulu enesamente ephantsi limalunga nemizuzu engama-30. Izinto eziphelelwe ngamanzi okanye ezixineneyo azinakuxutywa namanzi kwaye kufuneka zilahlwe. Sebenzisa intonga engcangcazelayo ukuze ungcangcazele ukuze ufumane ukuxinana kwe-slurry. Intonga engcangcazelayo mayigcinwe ukuze kuthintelwe ukuba intonga eseleyo ingasebenzi xa intonga engcangcazelayo ingaphumeleli.
Ukwakhiwa kwezinto eziphoswayo kufuneka kwenziwe ngeziqwenga ecaleni kwe-axis ye-oven ejikelezayo. Ngaphambi kokuthululwa komcu ngamnye, umphezulu wokwakha kufuneka ucocwe kwaye kungabikho luthuli, i-welding slag kunye nezinye izinto ezingafunekiyo. Kwangaxeshanye, jonga ukuba ukuthungwa kwe-anchor kunye nonyango lwepeyinti ye-asphalt yomphezulu kuyasebenza na. Ngaphandle koko, kufuneka kuthathwe amanyathelo okulungisa.
Kwisakhiwo somcu, ukwakhiwa komzimba wokubumba umcu kufuneka kuthululwe ngokukhululekileyo ukusuka emsileni wesithando ukuya entlokweni yesithando ezantsi komzimba wesithando. Inkxaso yetemplate kufuneka yenziwe phakathi kwe-ankile kunye nepleyiti yentsimbi. Ipleyiti yentsimbi kunye ne-ankile zigqunywe ngokuqinileyo ngeebhloko zomthi. Ukuphakama kwefomwork yokuxhasa yi-220mm, ububanzi yi-620mm, ubude yi-4-5m, kwaye i-engile ephakathi yi-22.5°.
Ukwakhiwa komzimba wesibini wokubumba kufuneka kwenziwe emva kokuba umcu ugqityiwe kwaye isikhunta sisusiwe. Kwelinye icala, itemplate efana ne-arc isetyenziselwa ukuvala ukubumba ukusuka entlokweni ye-oven ukuya emsileni we-oven. Okuseleyo kuyafana.
Xa izinto zokubumba zishukunyiswa, udaka oluxutyiweyo kufuneka longezwe kwimold yetayara ngelixa lishukuma. Ixesha lokungcangcazela kufuneka lilawulwe ukuze kungabikho maqamza acacileyo kumphezulu womzimba wokubumba. Ixesha lokubumba kufuneka limiselwe bubushushu bendawo yokwakha. Kubalulekile ukuqinisekisa ukuba ukucima kwenziwa emva kokuba izinto zokubumba zimiselwe kwaye zinamandla athile.

5. Ukubhaka i-lining
Umgangatho wokubhaka we-rotary oil lining uchaphazela ngokuthe ngqo ubomi benkonzo ye-lining. Kwinkqubo yokubhaka yangaphambili, ngenxa yokungabikho kwamava avuthiweyo kunye neendlela ezilungileyo, indlela yokufaka ioyile enzima yokutsha yayisetyenziswa kwiinkqubo zokubhaka eziphantsi kobushushu, eziphakathi kunye neziphezulu. Ubushushu bekunzima ukulawula: xa ubushushu bufuna ukulawulwa ngaphantsi kwe-150℃, ioyile enzima ayilula ukuyitshisa; xa ubushushu buphezulu kune-150℃, isantya sokufudumeza sikhawuleza kakhulu, kwaye ukusasazwa kobushushu kwi-oven akulunganga kakhulu. Ubushushu be-lining apho ioyile enzima itshiswa khona buphezulu malunga ne-350~500℃, ngelixa ubushushu bezinye iindawo buphantsi. Ngale ndlela, i-lining kulula ukuyiqhuma (i-lining yangaphambili enokuphoswa iqhume ngexesha lenkqubo yokubhaka), ichaphazela ubomi benkonzo ye-lining.