Zinc Oxide volatilizing Kilatilizing Kilat, cov khib nyiab kev phom sij, cov khib nyiab siv tshuaj lom neeg thiab nroog sludge qhuav
Cov khib nyiab thiab cov khoom muaj kev puas tsuaj qeeb qeeb ceeb
Nrog rau kev nce nrawm rau hauv cov nyiaj ntawm kev phom sij, kev tsis muaj teeb meem yog qhov tseem ceeb. Cov khoom pov tseg puas muaj cov yam ntxwv muaj cov yam ntxwv ntawm cov yam ntxwv ntawm acidity thiab alkality, thiab loj hloov nyob rau hauv calorific tus nqi thiab kev puas tsuaj rau refractory casterables. Cov txheej txheem ntsuas kub ntawm teb cov khoom siv tsis muaj kev phom sij yog 850-1200 degree. Cov kab ntawm lub Qhab yog nyob rau hauv kev sib cuag ncaj qha nrog kev swb, yog li cov yaig kuj, thiab hnav tsis kam ntawm cov refractory castable yuav tsum muaj siab.
Cov roj acidic flue roj thiab ntau ntau ntawm cov nquag ya tshauv generated nyob rau hauv lub Kiln qeeb nkag mus rau theem nrab kev sib txuas. Cov roj Flue tau incinerated ntawm qhov kub thiab txias rau lub sijhawm thib ob hauv qhov xwm txheej uas cov pab cuam tshuam kub, thiab cov combusion kub txog ntau dua 1100 degree. Hauv theem nrab kev sib xyaw ua ke, Cheebtsam dej sib dhos, cov ntoo tshauv Ntxiv mus, thaum lub burner nyob rau hauv cov kev sib tw sib xyaw ua ke tas, qhov ntsuas kub hauv thaj chaw ib puag ncig ntawm cov cua sov hloov ntau zaus. Cov refractory ob sab yog eroded, slags, thiab peels tawm, thiab cov kab nrib pleb yog qhov puas loj heev.
Cov khoom lag luam
Hauv kev pom ntawm cov haujlwm ua haujlwm ntawm kev ua haujlwm theem nrab, lub ntsiab ua rau kev puas tsuaj rau cov tshauv melting thiab kev ua yeeb yaj kiab ntawm cov refactory. Cov hmoov tshauv tsuas yog tsim ntawm dicalcium silicate, calcyogenite, etcyogenite, thiab lwm yam cov hmoov av uas muaj kev phom sij thiab nkag mus rau cov khoom siv txhuas-silicing. Cov tshuaj tiv thaiv ntau npaum li cas ntawm feldspar thiab cov neeg phem qis-melting, uas tsis tsuas yog txo cov khoom ntim, tab sis kuj ua rau muaj cov ntaub ntawv pov tseg, tab sis kuj ua rau cov zaub mov xoob, tab sis loj heev cating floting nyob rau hauv kub hloov pauv.
Txhawm rau txhim kho cov matrix muaj pes tsawg leeg thiab txhim kho lub slag tiv thaiv thiab cov khoom siv tshwj xeeb, thiab cov khoom siv tshwj xeeb tau ntxiv los npaj Silicon Carbide Corundum castables. Tom qab kev ntsuas, nws tau pom tias lub puab tsaig sab hauv ntawm cov khoom siv reflicon tau zoo dua los ntawm kev yaig thiab nkag mus rau ntawm cov yaig thiab kev nkag ntawm cov hmoov tshauv.
Piv nrog oxide cov ntaub ntawv, cov ntaub ntawv tsis yog oxide xws li Silicon Carbide cov ntaub ntawv tsis yooj yim rau ntub thiab muaj cov khoom lag luam uas tsis yooj yim thiab muaj cov zoo corrosion. Lawv kuj muaj cov inertness zoo nyob rau hauv cov kua qaub thiab alkali ib puag ncig thiab tsis yooj yim kom hnov mob nrog si}}} 2 thiab ca0 hauv tshauv. Yog li ntawd, tom qab ntxiv silicon carbide kom txhim kho, cov khoom siv thermal poob siab, uas tuaj yeem ua kom zoo rau kev tawm tsam thiab cov nquag ya tshauv, ntxiv rau kev puas tsuaj los ntawm nws.
Cov khib nyiab thiab cov khib nyiab puas muaj ntau yam pov tseg, ruaj khov thiab kev tswj hwm ruaj khov thiab kev ua haujlwm yooj yim thiab cov khoom siv yooj yim. Yog li ntawd, lawv tau siv dav hauv qhov ua kom muaj kev phom sij thiab pov tseg kev phom sij thoob ntiaj teb. Qhov uas muaj kev cuam tshuam yog qhov ua tau zoo tshaj plaws thiab ua tiav txoj kev tsis muaj kev tsis muaj kev tsis muaj kev tsis muaj kev tsis muaj zog, txo thiab cov peev txheej siv cov khoom pov tseg thiab cov khib nyiab.
Cov ntawv thov ntau: siv rau ntau yam khib nyiab thiab kev puas tsuaj loj thiab muaj kev phom sij, tshuaj lom neeg thiab lwm yam khoom siv.
Ua Haujlwm Cov Ntsiab Cai
Lub ceeb Kiln yog nruab nrog lub pusher ntawm cov chaw nres nkoj pub kom ntseeg tau tias kev pub khoom muag. Lub qhov hluav taws xob kub ntawm lub cubtary yog 800 ~ 850 degree. Tom qab cov pa hluav taws xob nrog cov pa sib xyaw ua ke, yog li cov pa sib xyaw ua ke, yog li cov pa sib xyaw Nyob rau tib lub sijhawm, cov kev sib txuas theem nrab kev sib xyaw ua ke Cleamber saws cov qauv tshwj xeeb los ua kom cov kev sib txuas lus theem nrab kuj muaj cov cua daj cua dub tshem tawm haujlwm. Tus nplaim hluav taws kub qhov hluav taws xob kub ntawm cov pa roj txheem thib ob, suav nrog cov phom sij rau hauv cov pa hluav taws xob ntau dua 2 feeb, ua kom tiav cov kev ua kom tiav thiab ua tiav qhov yuav tsum muaj rau cov khib nyiab. Khoom (muaj kev phom sij) pub rau hauv lub cev qeeb Kiln los ntawm lub tshuab pub mis rau qhov kub kub. Tom qab kub-kub incineration, cov khoom yog incinerated rau hauv high-kub flue roj thiab tshauv. Qhov ceev ntawm lub ceeb Miln tuaj yeem hloov kho. Kev tswj cov txheej ci me me ntawm li 50mm tuab tuaj yeem tiv thaiv cov txheej refractory. Nws qhov kev ua haujlwm kub yuav tsum tau tswj hwm ntawm txog 850 degree. High-kub flue roj thiab cov hmoov tshauv nkag mus rau hauv lub pob tw ob leeg nkag mus rau hauv lub pob tw thiab yog tsis tu ncua Rhiav rau kev kho mob.
Qhov thiaj li hu ua peb lub wastes xa mus pov tseg, khib nyiab ua kua thiab khib nyiab roj thiab dej khib nyiab, nrog rau lawv cov mixtures. Yog tias cov tshuaj no tau daws tau zoo, lawv tuaj yeem tiv thaiv ib puag ncig thiab cov txiaj ntsig neeg lub neej. Nyob rau tib lub sijhawm, qee cov khib nyiab tuaj yeem rov qab tau rov qab tom qab kev kho mob, tig lub khib nyiab mus rau cov khoom muaj nqis. Txawm li cas los xij, cov pa phem theem nrab yuav tsum tau nruj me ntsis thaum lub sijhawm ua kom muaj kev cuam tshuam, uas yog, tsis muaj roj teeb meem yuav tsum tau tso tawm rau hauv huab cua.
Cov khib nyiab cov khoom siv tsis tau muab faib ua ob pawg: sib qab thiab txuas ntxiv. Piv txwv li, raws li lub xeev pov tseg, nws tuaj yeem faib ua cov khib nyiab, thiab cov kua roj teeb
Cov khib nyiab khib nyiab yog siv los kho cov thoob khib nyiab hauv nroog thiab cov khoom siv hluav taws xob nrog. Muaj ntau ntau hom incinerators. Piv txwv li, Nyiv muaj ntau dua li lub tshuab hluav taws xob ntau dua. Nyiv cov tshuab khib nyiab loj loj tau muab faib ua kom qhuav, cov chaw sib txuas ntawm thaj chaw huab cua, huab cua ua ntej thiab cov plua plav. Lawv siv cov roj hnyav li roj thiab tuaj yeem tswj tau thiab ua haujlwm. Txhua hnub inclination muaj peev xwm tuaj yeem ncav cuag 1,200 tons. Tom qab cov khib nyiab yog thauj mus rau hauv qhov cub ua kom qhuav, nws nkag mus rau thaj chaw kom qhuav, thaj chaw sib txuas ntawm cov kev pab ua ke ntawm cov hloov tau grate kom txog thaum nws hlawv; Cov ntoo tshauv tom qab combusion txwv rau hauv lub pob tawg, thiab tso pa tawm ntawm lub Chimney tom qab tshem plua plav. Cov haujlwm tag nrho yog nqa tawm tsis tu ncua. Cov khoom siv refractory siv hauv cov khib nyiab cov khib nyiab yuav tsum tau xaiv raws li kev siv cov chaw sib txawv thiab cov haujlwm ntawm kev ua haujlwm, thiab lawv yuav tsum tsis txhob hnov cov roj nrog cov roj tom qab cov khib nyiab. Nyob rau tib lub sijhawm, lub zog refractory yuav tsum muaj lub zog kub thiab cua sov ruaj khov kom tiv taus cov khib nyiab thiab kev ntxhov siab thermal tshwm sim los ntawm kev hloov kub. Feem ntau hais lus, kev siv cov ntaub ntawv refractory lossis amorphous refractory raws li cov ntaub qhwv rauv taws ua tau kom tau raws li qhov kev xav tau ntawm cov thoob khib nyiab.
Hauv nroog khib nyiab feem ntau muaj 10-60% dej thiab muaj tus nqi calorific tsawg. Cov roj hmab roj hmab yuav tsum tau siv los pab kev sib txuas ua ke thaum lub sijhawm ua kom muaj kev cuam tshuam, txwv tsis pub nws yuav nyuaj rau hlawv tawm. Tsis ntev los no, cov lus khib nyiab hauv cov teb chaws uas tsim muaj tau hloov pauv, thiab cov pej xeem muaj txiaj ntsig zoo zuj zus, uas yog qhov uas ua haujlwm ntawm lub zog ntawm lub cub tawg. Hauv qhov no, cov ntu tseem ceeb ntawm cov khib nyiab loj yog feem ntau ua nrog silicon carbide refractory castables, thiab kev siv zoo tau ua tiav. Txawm li cas los xij, kev siv ntawm Silicon Carmide cov cib tsis tag tsis muaj teeb meem, feem ntau vim tias lawv yuav tsum tau ua kom zoo dua los ua kom tau raws li qhov xav tau ntawm tus lej.
Ua kua cov zaub khib nyiab yog siv los kho cov dej khib nyiab los ntawm cov roj ntsha thiab lwm lub chaw haujlwm, yog li kom txo cov pa phem hloov kho thiab cov khoom siv rov qab los ntawm kev siv.
Cov khib nyiab tau muab faib ua ob hom: acidic thiab alkaline. Txij li cov dej khib nyiab muaj cov dej ntau, cov tshuaj tsuag ntau dua yog siv rau kev ua kom muaj zog, thiab feem ntau ntawm nws cov chaw ua kom sov. Feem ntau, cov khib nyiab ua kua nozzle thiab burner raug teeb tsa nyob rau sab saum toj ntawm lub cub tawg, thiab roj yog tsuag los ntawm sab saum toj mus rau hauv qab, sib xyaw thiab hlawv; Kuj tseem muaj cov neeg hlawv hluav taws tso rau ntawm cov hluav taws xob cub ua ke, thiab siv cov nplaim hluav taws xob ua kom sov, thaum muaj kev sib xyaw, nrog lub sijhawm sib tham ntev thiab kev cuam tshuam ntev; Tsis tas li ntawd, tseem muaj cov kab rov tav rov qab, tab sis cov khib nyiab tau yooj yim nyob rau hauv qab ntawm lub cub tawg, ua rau muaj kev puas tsuaj rau hauv ob sab phlu, yog li nws tsis tshua siv.
Kev ua haujlwm ntawm cov khib nyiab ua kua incinerator feem ntau yog feem ntau nyob ib ncig ntawm 1000 degree, thiab ntsuas kub ntawm kev kub ntxhov tuaj yeem nyob ib puag ncig 1500 degree. Nyob rau tib lub sijhawm, cov khib nyiab kua muaj cov kuab tshuaj uas muaj kuab lom rau cov cua sov. Yog li ntawd, thaum kho cov acidic pov ua kua, acid-resistant caslesab lossis plastics yuav tsum tau xaiv los ua cov cub hluav taws xob; Thaum hlawv cov qoob loo khib nyiab alkaline, magnesium thiab magnesium-chromium refractory castables yuav tsum tau siv los ncuav lub rauv taws. High-zog Refractory Castables yuav tsum tau siv los ua cov cub hluav taws xob rau qhov yooj yim tsuaj rau qhov cub tawg. Cov roj roj roj thauj roj yog tsuas yog siv los kho hydrogen chloride (HC1), carbon monoxide (C1) thiab sulfur dioxide (so2). Feem ntau ntawm cov chaw ua kom sov yog kab rov tav thiab sib txuas, thiab combusioned burners yog ntsia tib lub sijhawm kom ntseeg tau tias cov roj pov yog hlawv tag nrho. Cov ntaub ntawv refractory siv nyob rau hauv cov cub hluav taws xob no feem ntau yog High-alumina Refractics lossis qee zaum yooj yim cov paj tawg tau siv rau Masonry.
Cov kab thickness ntawm cov saum toj no-hais txog ntau yam incinerators yog {1}} hli. Thaum siv cov cib regractory rau Masonry, feem ntau ntxiv ib txheej ntawm rwb thaiv tsev pawg thawj coj thiab txheej txheej ntawm lub teeb ci ntsa iab; Thaum siv cov khoom siv kho amorphous li ob sab hauv lub pob zeb lossis cov hlau ua kom nruj ua ke nrog cov ntaub pua chaw ua haujlwm nrog cov thickness ntawm {{mm. Thaum kev tsim kho, ntau yam cov hlau nplaum yuav tsum tau nruab kom ruaj raws li kev tsim loj, thiab hliv yuav tsum tau nqa tawm tsis tu ncua. Yog tias cov pob qij txha nthuav tawm sab laug, hluav taws-thaiv cov cib yuav tsum muab tso rau sab nraum qab.
Muaj ntau hom-kua sib xyaw cov khib nyiab, xws li teb, txaj pw thiab muaj ntau-txheej ntsug. Nws cov yam ntxwv yog tias cov khib nyiab sib xyaw tuaj yeem raug tshem tawm thaum lub sijhawm sib hloov lossis kev kho mob, tab sis kev kho mob corrosion loj dua. Zoo dua cov ntaub ntawv refractory yuav tsum raug xaiv kom txuas txoj haujlwm lub neej ntawm cov ntawv.
Lub tebchaw qeeb teb muaj cov nruas teb cov nruas sib txawv Thaum cov khib nyiab sib xyaw tau thauj mus rau hauv cov cub tawg, cov khib nyiab yob raws phab ntsa ntawm lub nruas vim tias kev sib hloov ntawm lub nruas teb, yog li nws tau hlawv tag nrho. Tom qab cov khoom siv tsis tiav ua tiav rau cov roj tso pa tawm, lawv txuas ntxiv mus hlawv, thiab cov hmoov tshauv txuas ntxiv mus rau hauv lub hopper.
Lub puab hauv sab hauv ntawm lub ntsiab sib txuas ntawm lub teb chaws suav ntawm lub teb chaws liab feem ntau ua nrog cov av nplaum tuab lossis siab-alumina cib. Tam sim no, feem ntau ntawm lawv yog txoj hlua khi nrog high-zog refractory castables. Cov kab ntawm cov pab pawg sib txuas sib txuas thiab cov khoom cub tawg feem ntau nchuav nrog lub zog high-lub zog refractory castables Thaum Reastics Castables thiab cov plastics yog siv los ua cov cub hluav taws xob, thauj tog rau nkoj txuas rau hauv cov pob zeb thauj tog rau hauv lub pob zeb kom tiv thaiv kom tsis txhob poob lossis vau.
Thaum lub txaj fluidized lub txaj yog ua haujlwm, ua ntej thauj khoom nruab nrab xws li cov cua sov los ntawm nruab nrab ntawm cov khib nyiab, thiab tom qab ntawd thauj cov hluav taws xob sib xyaw thiab zes rau hluav taws kub. Nyob rau lub sijhawm no, cov khib nyiab thiab nruab nrab tau sib xyaw ua ke thiab kev sib txuas yog qhov ua tiav. Nws tuaj yeem pom los ntawm qhov no uas cov kev ua haujlwm ntawm cov refuntory phaj nyob rau hauv qab ntawm kev sib txuas ntawm cov phab ntsa tsis zoo. Lawv tsis tsuas yog yuav tsum tau withstand siab, tab sis kuj tseem yuav cuam tshuam thiab hnav los ntawm cov khib nyiab rhaub thiab cov khib nyiab. Yog li ntawd, zoo-zoo regractory yuav tsum tau xaiv.
Feem ntau, hauv qab ntawm kev sib txuas ntawm cov flumberized txaj txaj yog ib phaj ntxeem tau ua los ntawm high-zog refractory castables; Qhov qis dua ntawm cov cua sov phab ntsa yog txoj hlua khi nrog high-zog refractator castables, thiab tseem tuaj yeem ua nrog High-alumina cib; Cov kab hauv nruab nrab thiab sab saud ntawm cov cua sov phab ntsa yog ob sab nrog cov khoom siv refractory lossis av nplaum cib; Cov kab ntawm cov huab cua kub feem ntau tau nchuav nrog lub teeb ci ntsa iab refractory casles.
Thaum twg cov khib nyiab muaj cov phenol, Aniline thiab Bining yog corroded cryroded lossis fused corractory Cryrchs lossis phosphate refractics kuj tseem tuaj yeem siv rau hauv chaw nyob. Tsis muaj teeb meem cov khoom siv tau siv, kev saib xyuas yuav tsum tau them rau cov kev tsim kho zoo, txwv tsis pub cov kev pabcuam lub neej ntawm lub neej yuav raug txo kom tsawg.
Tsis tas li ntawd, thaum cov pov tseg kev pov tseg tau nruab thiab siv ua ke nrog cov khoom lag luam ntawm ob lub neej yuav tsum yog qhov zoo ib yam, txwv tsis pub nws yuav cuam tshuam rau kev tsim khoom ib txwm muaj.
Cov khoom siv refractory rau cov khoom siv pov tseg yog nyob ntawm cov khoom siv tshuaj lom neeg ntawm cov khoom siv rorrosive, uas yog qhov zoo ib yam ntawm cov khoom siv xeb tsis txaus ntawm cov ntaub ntawv refractory. Silicon-Aluminium Refractory Cib yog raws li Al 2 O {2}} sio 2 binary theem raws li cov qauv yooj yim. Cov khoom tseem ceeb suav nrog Silica Cib, Quartz iav, cov pob zeb av nplaum, thiab lwm yam ntawm cov pob zeb siab refractory yog corundum, mullite thiab iav theem. Refractory cib yog faib raws li cov ntsiab lus thib 2 O 3. Thaum lub al 2 o 3 pawg feem ntau ntau dua lossis sib npaug ntawm 90%, nws yog Corundum Refractory Cib. Hom kev ua npuas no yog dav siv nyob rau hauv ob sab phlu ntawm cov khib nyiab pov tseg.
1) tsim nyog porosity. Cov pority pom tseeb hais txog qhov sib piv ntawm cov ntim ntawm txhua qhov qhib pores ntawm refractory rau tag nrho cov ntim. Qhov siab dua lub porosity, qhov ntau qhib pores nws muaj, qhov yooj yim nws yog rau permeable kev refractory, thiab loj dua erosion. Feem ntau, cov paj hlwb yuav tsum tau tswj tsis pub dhau qhov tsawg, tab sis nws yuav tsum tau sau tseg tias muaj lub paj daj ntau dhau yuav cuam tshuam rau cov nyhuv thermal rwb thaiv tsev. Ntawm tam sim no, cov porosent porosity ntawm domestic refractory cib feem ntau tswj tau ntawm 20%.
2) Zoo thermal stability thiab txaus thauj khoom softening kub. Refractory cov ntaub ntawv yuav tsum muaj txaus thermal stability thiab cov khoom siv soften tsis tau soften lossis defaps thiab vau rau hauv cov hluav taws xob loj thiab lwm yam thermal neeg ntxhov siab.
3) Zoo slag yaig tsis kam thiab tshuaj ruaj khov. Cov roj av ua kua thiab molten roj tshauv ntawm qhov kub hauv lub kiln muaj cov tshuaj yaig muaj zog. Yog li, cov khoom siv regractory yuav tsum muaj cov tshuaj yaig zoo heev thiab tshuaj lom neeg kom txo cov kev pabcuam thiab thinning ntawm cov ntaub ntawv ua haujlwm ntawm refractory cov ntaub ntawv
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