Yakawanda sei mullite insulation zvidhinha?

Iyo JM yakatevedzana ye mullite insulation zvidhinha ine JM26, JM28, JM30, JM32 zvinoenderana nekushisa kwekushandisa. Mutengo wemusika wechidimbu chimwe nechimwe mayuan mashoma payuan. Mutengo uchachinja zvichienderana nezviri mukati mezviratidzo zvakasiyana uye kudiwa. Nezve mullite Nezve nyaya dzine hukama dzekuti yakawanda sei chidhinha chekuvharisa, kukosha chaiko kunofanirwa kusarudzwa pamwe chete mushure mekubvunzana nemugadziri we refractory.

Mullite insulation zvidhinha ndeye yakakwira alumina refractory zvinhu zvine mullite (3Al2O3 · 2SiO2) sechikamu chikuru chekristaro. Kazhinji, iyo alumina yemukati iri pakati pe65% ne75%. Kuwedzera kune mullite, iyo mineral inoumbwa ine diki chikamu chegirazi uye cristobalite ine yakaderera alumina yemukati; iyo yepamusoro alumina yemukati inewo shoma shoma yecorundum. Mullite insulation zvidhinha zvinogona kushandiswa zvakananga kune lining of high-temperature kilns, uye yakashandiswa zvakanyanya mushuttle kilns, roller kilns, girazi uye petrochemical kilns.

1. Chigadzirwa maitiro emullite insulation zvidhinha:

1. Low thermal conductivity uye yakanaka thermal insulation effect;

2. Yakaderera tsvina yemukati ine yakaderera kwazvo simbi bhokisi alkali simbi uye mamwe oxide content, saka, yakakwirira refractoriness; yakakwirira yealuminium inoita kuti ichengetedze kushanda kwakanaka mumhepo inoderedza;

3. Iyo mullite insulation brick ine yakaderera thermal melting. Nekuda kweiyo yakaderera yekupisa conductivity, iyo mullite yakatevedzana yezvidhinha zvidhinha zvinounganidza zvishoma zvinopisa simba, uye simba rekuchengetedza simba riri pachena mukushanda kwepakati;

4. Kuonekwa ukuru, kukurumidzira masonry, kuderedza kuwanda kwedhaka refractory, kuve nechokwadi chesimba uye kugadzikana kwemasoni, nokudaro kuwedzera hupenyu hwemucheka;

5. Mullite insulation zvidhinha zvine simba rinopisa rinopisa;

6. Mullite insulation zvidhinha zvinogona kugadziriswa kuva akakosha maumbirwo kuderedza nhamba yezvidhinha nemajoini.

2. Kukamurwa kwemullite insulation zvidhinha:

Zvinoenderana nemaitiro ayo ekugadzira, kune marudzi maviri emullite lightweight insulation zvidhinha: sintered mullite zvidhinha uye fused mullite zvidhinha:

1. Sintered mullite zvidhinha zvinogadzirwa ne-high-alumina bauxite clinker sechinhu chikuru chakasvibirira, kuwedzera zvishoma zvevhu kana bhauxite yakasvibirira sechinhu chinosunga, uye kuumba uye kupisa.

2. Zvidhinha zvakasanganiswa mullite zvinogadzirwa nealumina yakakwira, aluminium yeindasitiri uye ivhu refractory seyakagadzirwa, uye marasha kana coke fine particles inowedzerwa seanoderedza vamiririri. Mushure mekuumbwa, ivo vanogadzirwa nekudzikisa kunyungudika kwemagetsi.

Kuita uye kushandiswa kwemullite insulation zvidhinha: yakakwirira refractoriness, iyo inogona kusvika pamusoro pe1790 ℃. Iyo yekutanga tembiricha yekunyorovesa mutoro i1600～1700℃. Kudzvinyirira simba pakupisa kwekamuri i70～260MPa. Good thermal shock resistance. Kune mhando mbiri dze sintered mullite zvidhinha uye zvakasanganiswa mullite zvidhinha. Sintered mullite zvidhinha zvinogadzirwa ne-high-alumina bauxite clinker sechinhu chikuru mbishi, ichiwedzera ivhu diki kana mbishi bauxite sebhainda, uye kugadzira uye kupfura. Zvidhinha zvakasanganiswa mullite zvinoshandisa yakakwira alumina, maindasitiri alumina uye ivhu refractory semidziyo yakabikwa, wedzera marasha kana coke manyoro zvimedu seanoderedza vamiririri, uye anogadzirwa nekuderedza fusion nzira mushure mekuumbwa. Iyo crystallization ye fused mullite yakakura kupfuura iyo sintered mullite, uye kupisa kwayo kutyisa kuramba kuri nani pane iyo yezvigadzirwa zve sintered. Kubata kwavo kwekushisa kwakanyanya kunoenderana nezviri mukati mealuminium uye kufanana kwemullite chikamu uye kugovera girazi. Inonyanya kushandiswa kupisa kuputika chitofu chepamusoro, kuputika kwevira muviri uye pasi, regenerator yegirazi inonyunguduka choto, ceramic sintering kiln, yakafa kona yevira yevira yepetroleum cracking system, nezvimwe.