Dab tsi yog qhov refractory cib castables rau khib nyiab incinerators?

Cov khib nyiab khib nyiab tau muab faib ua: hauv nroog cov khoom khib nyiab incinerator, sib tshuam incinerator, grate-hom npau suav incinerator, khib nyiab pyrolysis gasification incinerator, fluidized txaj incinerator, rotary kiln-hom industrial khib nyiab incinerator, grate-hom incinerator rauv.

Yuav

Vim tias muaj ntau hom khib nyiab uas tsis tuaj yeem muab cais tawm tag nrho, tus nqi caloric ntawm cov khib nyiab kuj txawv. Txhawm rau kom ntseeg tau tias cov khib nyiab khib nyiab tswj kev ua haujlwm zoo nyob rau lub sijhawm ntev kub, nws yuav tsum tau txiav txim siab xaiv cov khoom siv refractory los ntawm ntau yam. Feem ntau silicon carbide cib. Castables feem ntau yog av nplaum, high-alumina plastics, av nplaum, thiab silicon carbide-based castables. Vim lub siab corrosivity ntawm cov khib nyiab incinerators, kev siv cov castables yog evolving tas li. Kev siv silicon carbide castables thiab phosphates ua ke nrog high-alumina castables yog maj mam nce vim tias ob lub castables no muaj kev hnav zoo.

Kev xaiv lub hauv paus ntawm cov ntaub ntawv refractory: cov khib nyiab sib txawv muaj cov kev ua haujlwm sib txawv, thiab qhov sib txawv ntawm cov khoom siv sab hauv yuav tsum muaj cov khoom sib txawv ntawm cov khoom siv refractory. Yog li ntawd, cov khoom siv refractory nrog cov khoom sib txawv yuav tsum raug xaiv raws li lawv qhov chaw ua haujlwm thiab siv qhov kub thiab txias. Kev khiav hauj lwm kub ntawm cov khib nyiab incinerator yog 1200 ℃ -1400 ℃. Cov roj yog corrosive heev rau cov ntaub ntawv refractory thaum lub sij hawm incineration, thiab lub cub tawg hauv qab, kiv cua, thiab sab phab ntsa yog heev hnav thiab cuam tshuam. Yog li ntawd, qhov kev xaiv ntawm cov ntaub ntawv zoo kuj tseem yuav raug kho dua tshiab.

Xaiv cov khoom siv refractory raws li qhov chaw ua haujlwm. Nyob rau hauv ib feem ntawm lub incinerator pov tseg, vim hais tias cov input thiab poob ntawm cov pov tseg yuav tsum nyob rau hauv kev sib cuag nrog cov khoom, thiab qhov kub ntawm lub input chaw nres nkoj feem ntau hloov, lub refractory yuav tsum muaj zoo hnav tsis kam thiab thermal shock kuj. Rau kev ruaj ntseg, av nplaum cib tuaj yeem siv tau.

Nyob rau hauv chav qhuav thiab combustion chamber ntawm cov khib nyiab incinerator, cov khib nyiab thiab lub tshuab hluav taws xob yog nyob rau hauv kev sib cuag ncaj qha ntawm qhov kub thiab txias. Ntawm qhov tod tes, cov slag yuav ua raws li lub hauv paus ntawm lub qhov cub, thiab ntawm qhov tod tes, impurities yuav nkag mus rau hauv lub qhov cub. Nyob rau tib lub sijhawm, cov khoom siv pov tseg yuav ua rau muaj kev hloov pauv kub. Yog li ntawd, cov ntaub ntawv refractory yuav tsum tsis tsuas yog hnav-resistant, corrosion-resistant, thiab nyuaj rau adhere, tab sis kuj alkali-resistant thiab oxidation-resistant. Feem ntau, cov av nplaum cib, high-alumina cib, SiC cib, castables thiab plastics yog siv.

Xaiv cov ntaub ntawv refractory raws li kev siv kub, qhov sib txawv ntawm cov khib nyiab incinerators, sib txawv siv qhov sib txawv, thiab qhov sib txawv siv kub: kev siv kub ntawm lub ru tsev, sab phab ntsa, thiab cov hluav taws kub ntawm lub combustion chamber yog 1000-1400, thiab refractoriness ntawm 1750-1790. tuaj yeem xaiv tau. High-alumina cib thiab av nplaum cib, plastics nrog refractoriness ntawm 1750-1790 kuj siv tau.

Cov kev cai rau cov khoom siv refractory yuav tsum muaj cov ntsiab lus hauv qab no:

1. Siv cov khoom siv muaj zog thiab hnav-tiv taus los tiv thaiv hnav thiab muaj zog airflow;

2. Nws yuav tsum muaj cov kua qaub thiab kev ruaj ntseg kom tiv taus acid corrosion;

3. thermal shock kuj yog ib qho tseem ceeb uas tsis tuaj yeem tsis quav ntsej;

Plaub, nws yuav tsum muaj CO yaig los tiv thaiv cov ntaub ntawv hauv ob sab phlu;

Thib tsib, kev xaiv cov ntaub ntawv rwb thaiv tsev, raws li qhov sib txawv, xaiv cov ntaub ntawv rwb thaiv tsev uas tsim nyog rau txhua qhov.