Kev kho cov khib nyiab pov tseg nyob rau hauv lub qhov cub tawg feem ntau muaj ntau theem: ziab thiab pyrolysis, combustion, thiab burnout. Nyob rau hauv qhov kev txiav txim ntawm qhov kub thiab txias, cov khib nyiab pov tseg yuav raug decomposed thiab rhuav tshem, tab sis yuav tsim cov pa roj thiab slag. Cov pa roj flue ntawm cov khib nyiab pov tseg thiab qee cov molten slag yuav ua rau cov ntaub ntawv refractory puas tsuaj nyob rau hauv lub teb kiln. Yog li ntawd, kev xaiv kom zoo ntawm cov khoom siv refractory tuaj yeem txhim kho qhov zoo ntawm cov rotary kiln.
Kev xaiv cov khoom siv hluav taws xob rau cov khib nyiab khib nyiab Rotary Kiln
1) Kub kub tsis kam
Hauv kev xaiv cov khoom siv refractory rau sab hauv phab ntsa ntawm lub qhov cub tawg, nws yuav tsum muaj qhov kub thiab txias. Kev kho cov khib nyiab pov tseg yuav tsum tau kub kub combustion. Yog tias qhov kub tsis kam ntawm cov phab ntsa sab hauv tsis zoo, nws yuav tsis tsuas cuam tshuam rau nws lub neej kev pab cuam, tab sis kuj cuam tshuam rau nws cov nyhuv kho. Feem ntau hais lus, qhov kub hnyiab ntawm cov khib nyiab pov tseg yog nyob ib puag ncig 800 degree. Kev khiav hauj lwm kub nyob rau hauv lub teb kiln yog feem ntau 850 degree ~ 1000 degree.
2) Lub zog zoo thiab hnav tsis kam
Lub zog ntawm rotary kiln refractory hais txog nws lub zog txhua yam. Cov khib nyiab pov tseg feem ntau muaj qhov sib txawv thiab qhov ntau thiab tsawg, thiab lawv qhov hardness yog txawv. Yog tias lub zog thiab hnav tsis kam ntawm cov khoom siv tsis zoo, nws yooj yim rau kev puas tsuaj los ntawm kev cuam tshuam thiab hnav thaum cov khib nyiab nkag mus rau hauv qhov cub thiab tig thiab poob. Tsis tas li ntawd, cov khoom txaus ntshai yuav nthuav dav thaum lub sij hawm combustion, thiab lub plhaub ntawm lub qhov cub hluav taws xob kuj tseem ceeb rau cov khoom siv refractory, uas yog khi rau cov khoom siv kom muaj zog zoo.
3) Zoo ntim stability
Cov khoom siv refractory ntawm lub qhov cub hluav taws xob yog ze ze nrog tag nrho cov phab ntsa sab hauv ntawm lub kiln. Thaum lub sij hawm ib txwm ua hauj lwm ntawm lub rotary kiln, nws raug thermal stress los ntawm kub hloov, mechanical stressed los ntawm kev sib hloov ntawm lub tog raj kheej, thiab kev nyuaj siab ntawm cov ntaub ntawv. Cov txheej txheem ntawm kev hloov pauv kub yuav Tus neeg sawv cev nthuav dav uas coj lub ntim ntawm cov khoom siv refractory shrinks. Thaum lub ntim ruaj khov ntawm cov khoom siv refractory tsis zoo lossis lub ntim hloov pauv ntawm qhov sib txawv ntawm qhov kub thiab txias, yuav muaj qhov sib txawv los yog qhov khoob ntawm cov khoom siv refractory, nruab nrab ntawm cov khoom siv refractory thiab lub tog raj kheej, ua rau cov khoom tawg lossis poob. .
4) Zoo corrosion kuj
Ib tug loj npaum li cas ntawm corrosive gas thiab slag yog generated thaum lub sij hawm incineration ntawm cov pov tseg txaus ntshai, uas yuav nkag mus rau hauv cov ntaub ntawv los ntawm lub qhib pores thiab micro-kawg ntawm lub nto ntawm cov khoom, thiab reacts nrog cov ntaub ntawv matrix ua rau embrittlement thiab tev ntawm cov khoom. khoom. Siv cov ntaub ntawv uas muaj kev tiv thaiv corrosion zoo Nws tuaj yeem txo qhov nkag mus thiab cov tshuaj tiv thaiv ntawm cov khoom tsis zoo rau qee yam, thiab ua kom ntev lub neej kev pab cuam tag nrho ntawm lub tshuab teb.
