Refractory Qhob: Muaj Pes Tsawg Leeg Ntawm Cov Qhob Refractory Thiab GOST, Ua Koj Tus Kheej. Qhov No Yog Dab Tsi? Cov Lus Qhia Tshwj Xeeb Thiab Sib Piv, Cov Cement Rau Nws Cov Khoo

2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-18 12:13

Refractory qhob yog hom tshwj xeeb ntawm cov khoom siv hauv tsev nrog cov yam ntxwv zoo dua qub. Vim nws cov khoom tshwj xeeb, nws yog qhov xav tau hauv ntau thaj chaw. Nws yog qhov tsim nyog txiav txim siab hauv kev nthuav dav ntxiv tias cov khoom siv yog dab tsi, thiab seb nws puas tuaj yeem npaj cov pob zeb ua hluav taws kub ntawm koj tus kheej.

Nws yog dab tsi?

Refractory qhob yog sib txawv ntawm cov pob zeb txheem. Qhov sib txawv tseem ceeb yog tias cov khoom siv ua haujlwm tau zoo ntawm kev tswj hwm qhov kub uas cuam tshuam rau nws . Nyob rau tib lub sijhawm, lub pob zeb tsis tawg, tsis plam nws cov khoom qub. Nyob ntawm qhov muaj pes tsawg leeg thiab cov qauv ntawm cov pob zeb uas tiv taus cua sov, nws tuaj yeem tiv taus cua sov los ntawm 750 txog 1800 degrees Celsius, ntxiv rau tiv taus qhov nplaim taws qhib.

Lwm qhov sib txawv ntawm cov qhob refractory yog cov ntsiab lus nce ntxiv ntawm cov khoom tshwj xeeb hauv kev sib xyaw, uas ua rau nws cov yam ntxwv zoo . Qee cov ntaub ntawv ntawm pab pawg no suav nrog ntau yam pob zeb nrog me me ntawm quartz. Lub xub ntiag ntawm alumina Cheebtsam hauv kev sib xyaw ua ke tiv thaiv lub pob zeb los ntawm kev poob lub zog thiab ziab tawm thaum lub sijhawm ua hluav taws ntawm cov qauv. Cov yam ntxwv no ua rau cov pob zeb ua hluav taws xob xav tau hauv ntau thaj chaw.

Cov sib xyaw ua ke no tau tshwj xeeb hauv kev tsim kho cov chaw tsim khoom lossis cov txheej txheem ntawm tus kheej, kev ua haujlwm ntawm qhov chaw sov.

Yam ntxwv thiab khoom

Cov muaj pes tsawg leeg ntawm cov cua kub uas tiv taus cua sov muaj cov khoom xyaw tshwj xeeb uas ua rau cov khoom tiv taus kom kub hnyiab lossis kub. Cov tuam txhab ua vaj tsev siv ua lub hauv paus sib xyaw ntawm cov cement nrog cov cim hauv qab no:

• ABS;
• SSBA;
• SBK;
• SABT.

Thiab tseem sib xyaw ntawm ShB-B, TIB thiab VGBS yog qhov nrov. Ib qho ntxiv, hauv cov txheej txheem ntawm kev tsim cov pob zeb, cov khoom siv tau siv uas ua rau nws cov haujlwm ua haujlwm tau zoo. Hauv qhov no, cov muab tshuaj uas tau ntxiv rau cov muaj pes tsawg leeg yog ua ntej zom ua kom sib xws ntawm cov hmoov lossis granules ntawm qee qhov ntau thiab tsawg. Cia peb sau cov tshuaj ntxiv.

• Cov yas yas . Cov no suav nrog nthuav av nplaum, ferrochrome slag, perlite thiab vermiculite.
• Binders . Yeej, kua iav ua raws li qhov ntxiv, tsawg dua alumina tshuaj. Thiab lawv tseem tuaj yeem ntxiv Portland cement. Qhov no ua rau thermoconcrete ruaj dua.
• Cov neeg tso chaw . Lawv suav tias yog qhov xav tau tshuaj ntxiv. Cov pab pawg no suav nrog cov nplaim hluav taws kub hnyiab, cov xuab zeb chamotte, cov pob zeb tawg thiab cov pumice.

Yog tias koj tab tom npaj los npaj cov qhob cij refractory koj tus kheej, koj yuav tsum ua tib zoo saib rau cov zaub mov uas tsim nyog. Nws kuj tseem pom zoo kom txiav txim siab yam txheej txheem thev naus laus zis thiab kev ua haujlwm uas koj xav kom ua tiav los ntawm cov khoom siv.

Cov khoom tseem ceeb ntawm cov qhob refractory:

• tiv taus kub thiab qhib hluav taws;
• nce zog;
• txhim kho kev ua tau zoo;
• yooj yim thiab muaj ntawm cov txheej txheem tsim khoom.

Lub ntsiab lus kawg yog piav qhia los ntawm qhov tsis muaj qhov kub ua haujlwm kub, uas yuav tsum tau ua hauv txheej txheem tsim cov qauv txheem.

Hom kev txheeb xyuas

Cov pob zeb uas tiv taus hluav taws yog cov khoom siv tshwj xeeb uas tsis ntshai qhov tsis zoo ntawm qhov kub thiab txias. Nyob rau hauv lem, cov pob zeb zoo li no tau muab faib ua pawg, txiav txim siab los ntawm kev tsim qee yam kev faib tawm.

Los ntawm qhov hnyav thiab tus qauv

Yog tias peb xav txog kev faib cov pob zeb uas tiv taus hluav taws los ntawm qhov hnyav thiab cov qauv, tom qab ntawv ntau hom khoom siv tuaj yeem ua qhov txawv hauv pawg no

• Hnyav ua vaj tse . Nws yog siv rau kev tsim kho lub hauv paus txheej txheem.
• Yooj yim . Nws feem ntau siv rau kev tsim cov qab nthab, tso cov yeeb nkab thiab kev tsim kho ntawm lwm yam khoom uas muaj qhov hnyav txwv rau kev ua haujlwm.
• Ntxeem tau . Cov khoom tseem hu ua cellular. Ua haujlwm ua hluav taws xob insulator.

Los ntawm hom ntawv phau ntawv

Tsis hais txog qeb twg, kev sib xyaw ntawm txhua qhov sib xyaw ua ke muaj cov tshuaj tiv thaiv kab mob, uas yog lub luag haujlwm rau kev ncaj ncees ntawm kev ua kom tawv tawv. Ntau yam tshuaj thiab cov ntaub ntawv tuaj yeem ua tus tuav.

• Pib siv qib qib Portland xis mas . Kev siv cov ntaub ntawv raw li no tseem ua rau nws muaj peev xwm ua tiav lub zog siab ntawm kev sib xyaw. Portland slag cement ua kom cov viscosity ntawm cov sib tov sib xyaw.
• Alumina cement lossis dej iav . Haum yog tias xav tau los txhim kho cov khoom siv hluav taws xob ntawm cov pob zeb ua ke.
• Aluminophosphates . Cov qhob tseem tuaj yeem ua phosphate sib txuas, uas txhim kho nws cov khoom sib dhos.

Muaj lwm qhov kev faib tawm ntawm cov pob zeb los ntawm kev ntsuas tsis tau. Hauv qhov no, cov khoom siv feem ntau tau faib ua ob peb hom.

• Kub-tiv taus . Cov khoom sib xyaw tuaj yeem tiv taus cua sov txog 700 degrees Celsius yam tsis poob. Txhawm rau tsim cov pob zeb ua haujlwm, Portland cement thiab slag Portland cement yog siv.
• Refractory . Cov ntaub ntawv ntawm hom no yog siv rau kev tsim kho lossis kev tsim khoom lag luam uas raug rau qhov kub ntawm 1000 degrees. Cov iav ua kua feem ntau suav nrog hauv cov khoom sib xyaw kom ua tiav cov yam ntxwv xav tau.
• Siab refractory . Lawv tau siv rau cov khoom, kev ua haujlwm ntawm qhov chaw kub tshaj plaws. Txhawm rau txhim kho cov yam ntxwv muaj zog ntawm cov pob zeb ua tau zoo, qib qib Portland cov cement lossis cov cib hluav taws tau ntxiv rau qhov sib xyaw. Thiab lawv kuj tseem tuaj yeem siv lwm yam khoom uas txhim kho cov khoom ntawm cov khoom. Cov pob zeb ua ke ntawm hom no feem ntau siv hauv kev tsim cov txheej txheem tiv tshav kub: qhov cub, qhov cub, cov rhaub dej loj.

Ntawm lwm yam, pob zeb yog xav tau hauv kev tsim cov tsev tsim khoom.

Scope ntawm daim ntawv thov

Refractory qhob yog nrov tsis tsuas yog hauv kev tsim kho kev lag luam, tab sis kuj hauv cov haujlwm tshwj xeeb. Nyob ntawm seb hom khoom siv twg tso tawm los ntawm cov chaw tsim khoom, cov lus qhia ntawm kev thov ntawm cov khoom tau txiav txim siab.

• Qhuav sib tov ABS . Nws yog qhov xav tau hauv kev siv hluav taws xob cua sov thiab rau kev sib dhos ntawm Pompeian cov cua sov hauv cov hlau.
• Cov qhob sib xyaw uas muaj ntau npaum li cas ntawm VGBS alumina . Tsim los npog sab hauv sab hauv ntawm cov thoob uas siv rau nchuav cov khoom kub hnyiab. Nws kuj ua raws li lub tshuab cua sov hauv qab. Lub peculiarity nyob hauv qhov tseeb tias cov khoom tuaj yeem muaj sia nyob los ntawm qhov kub ntawm 1800 degrees Celsius.
• Kev sib xyaw nrog ntau qhov ntawm corundum muab tub lim SBK . Daim ntawv thov yog tib yam li rau qhov kev xaiv thib ob.
• Pob zeb uas muaj cov cua sov-insulating additives . Nws yog nyob rau hauv kev thov rau txheej txheej ntawm cov cua sov hauv kev lag luam.
• SBS sib xyaw, uas nthuav tawm tus kheej . Lawv tau siv hauv kev tsim kho cov qauv tsim tawm kom sov li 1500 degrees Celsius. Cov no feem ntau yog cov cua sov thiab kev teeb tsa cua sov.
• Kev sib xyaw ntawm ShB-B, uas muaj cov tshuaj tua hluav taws . Tsim los npog ib feem ntawm cov hlawv uas ua haujlwm kub. Qhov kub nce mus txog 1300 degrees Celsius.
• Qhuav sib tov SSBA rau phaj txhawb . Daim ntawv thov yog tib yam li hauv qhov kev xaiv thib ob.

Kev siv cov pob zeb uas tiv taus cua sov nrog cov khoom sib txawv ua rau kev ua haujlwm ntawm cov tsev, cov qauv thiab txhua yam khoom siv nyab xeeb dua.

Yuav ua li cas koj tus kheej?

Niaj hnub no, ntau cov tuam ntxhab koom nrog hauv kev tsim cov pob zeb ua hluav taws xob. Txawm li cas los xij, yog tias koj xav tau, koj tuaj yeem npaj cov khoom sib xyaw ua kom muaj zog tiv thaiv hluav taws rau koj tus kheej, yog tias koj xaiv cov khoom xyaw raug thiab cov muab tub lim. Nws yog qhov tseem ceeb uas ntau pob khoom ntawm qee cov tuam txhab tsim khoom muaj cov lus qhia rau kev npaj cov cua sov uas tiv taus cua sov, uas yuav tsum tau ua raws thaum npaj cov txheej txheem ywj pheej.

Yog tias cov khoom siv tau yuav ntau dua ib txheej, tom qab ntawd kev npaj ntawm qhov sib xyaw ua ke zaum kawg tau ua tiav hauv ob theem

• Ua ntej, lub hauv paus cement yog kneaded . Kev ua noj ua haus yog nyob rau hauv lub tais los yog tov khoom. Txhawm rau tsim qhov sib xyaw, koj yuav tsum tau npaj dej, xuab zeb lossis pob zeb. Tsis tas li, yuav tsum tau siv lub trowel thiab refractory los muab cov yam ntxwv tsim nyog rau lub hauv paus. Qhov sib piv ntawm qhov sib piv rau yav tom ntej lub hauv paus yog suav tias yog 3 ntu ntawm pob zeb rau 2 feem ntawm cov xuab zeb thiab 2 feem ntawm cov khoom siv hluav taws xob. Yog tias xav tau, cov khoom ntawm lub hauv paus tuaj yeem kho tau los ntawm kev ntxiv 0.5 feem ntawm cov txiv qaub, yav dhau los slaked.
• Tom qab ntawd ntxiv cov txhaws rau nws txhawm rau txhawm rau txhawm rau txhawm rau txhaws . Koj tuaj yeem tshuaj xyuas qhov npaj tau los ntawm kev noj ib pob los ntawm qhov sib tov. Yog tias hauv txhais tes nws tsis tawg thiab tsis kis, tom qab ntawd qhov sib xyaw tau txiav txim siab npaj tau, thiab nws tuaj yeem siv los txhim kho cov khoom tsim kho.

Nws yog qhov tsim nyog yuav tsum tau them sai sai rau qhov tseeb tias hauv cov txheej txheem ntawm kev sib xyaw hauv paus, nws yog ib qho tseem ceeb kom ua tiav cov tshuaj sib xyaw. Txwv tsis pub, nws yuav tsis tuaj yeem tau txais cov cuab yeej tsim nyog. Raws li kev xyaum qhia, nws yog qhov zoo dua los txhawm rau hauv lub tais tsev uas siv cov duav qub . Raws li rau qhov ziab ntawm cov khoom, thaum lub sijhawm txheej txheem no nws yog qhov tsim nyog los tshuaj xyuas seb cov dej noo tau tsim hauv cov qauv tau faib tawm li cas. Txhawm rau kom ua kom qhuav ntawm cov pob zeb ua ke, nws yuav tsum tsim kom muaj qhov cua nkag tau zoo. Nyob rau tib lub sijhawm, nws raug pom zoo kom kaw cov qauv thaum lub sijhawm qhuav kom thiaj li ua rau cov txheej txheem ntawm cov dej noo tso tawm los ntawm cov khoom siv ntau dua thiab tsis nrawm li. Qhov no yog qhov tsim nyog kom tau txais cov qauv ruaj khov.

Muaj ntau txoj hauv kev thiab cov zaub mov txawv rau ua qhob refractory nrog koj txhais tes . Qhov tseem ceeb uas yuav tsum tau txiav txim siab thaum ua haujlwm ywj pheej yog ua raws li qhov yuav tsum tau ua ntawm GOSTs thiab lwm cov ntaub ntawv tswj hwm. Yog tias koj ua raws cov txheej txheem yam tsis muaj kev lav phib xaub, yuav tsis muaj kev lav paub tias koj yuav tuaj yeem tau txais cov khoom xav tau. Yog tias koj tsis paub meej tias koj yuav tuaj yeem npaj cov pob zeb sib xyaw ua ke koj tus kheej, nws yog qhov zoo dua los muab qhov nyiam rau cov ntawv pov thawj los ntawm cov tuam txhab tsim khoom lag luam. Cov khoom tsim los ntawm cov nroj tsuag tsis yog pheej yig, tab sis tib lub sijhawm nws xav txog cov cai ntawm kev tsim vaj tsev. Cov txheej txheem ua vaj tsev tsim los ntawm lub hoobkas yuav siv sijhawm ntev. Kev siv cov pob zeb sib xyaw ua ke ntawm hom no tuaj yeem tsim kho hauv cov chaw tsim khoom, cov tsev thiab cov qauv.