Kurongwa kwe bauxite
Bauxite, inozivikanwawo sebauxite kana bauxite, inonyanya kuumbwa nealuminium oxide uye ine tsvina. Bauxite ine yakaomesesa kuumbwa uye iri izwi rekare kune akasiyana hydrous alumina ores ane akasiyana siyana geological kwakabva.
Maererano nekushandiswa kwebauxite, yakakamurwa kuita metallurgical giredhi, kemikari giredhi, refractory giredhi, giredhi rekukuya, simende giredhi, etc. Inoshandiswa kugadzira refractory zvinhu, rudzi urwu rwebauxite runonzi refractory giredhi alumina. Bauxite clinker ine zviyero zvakakodzera zve AL2O3/Fe2O3 uye AL2O3/SiO2 inoshandiswa kunyungudutsa alumina.
1. High refractory tembiricha, yakasimba thermal kugadzikana, uye hapana kutsemuka. Aluminium mullite jecha ialuminium-silicon-based product. Mushure mekuverengera, kudzoreredza kwayo uye kugadzikana kwekudziya kwekutenderera kwakakura kwazvo kupfuura iyo jecha requartz rine kristaro chikamu chimiro chinoumbwa nekamwe crystal silicon. Haina kunyoroveswa nyore nesimbi yemvura kuita yakaderera kunyunguduka, iyo inogona kukunda Quartz jecha ine yakakura yekupisa yekuwedzera coefficient uye kushomeka kwegoho panguva yekumisikidza, zvichikonzera kukanganisa senge yakaderera kukanda kurongeka uye kunamatira kwejecha.
2. Yakasiyana particle gradation, zviri nani kufema. Foundry jecha rinogadzikwa neRaymond mill uye rakasanganiswa zvinoenderana neiyo chaiyo particle gradation panguva yekugadzira kuvandudza kupenya kwemhepo kwepende. Pamusoro pezvo, zvigadzirwa zvinogadziriswa nemabhora ebhora, majecha ejecha akagadzirwa neRaymond mill anodzorwa zvirinani, uye chikamu chebauxite clinker chakawedzera sainzi.
3. Iwo machira ane yakakwirira fusion, yakakwirira simba uye nyore demoulding. Yakasiyana refractory machira anoshandisa aluminium-silicon clinker zvigadzirwa, yakarasika furo bauxite clinker poda yakatsetseka, zvinoenderana neakasiyana particle gradations kubva mukati kunze. Iko kusanganiswa kubva kune yakanaka kusvika kune yakaoma kunoguma nehupamhi hwepamusoro hwekubatanidzwa pakati pehuputi; uku uchiwedzera simba rekuputira uye kudzivirira kukukurwa kwevhu kudzivirira matambudziko akadai sekudonha, zvakare zviri nyore kugadzira. Uye bauxite mullite inyaya isina kwayakarerekera, uye bauxite clinker inogona kushandiswa seasidhi uye alkali binders.
