Refractory zvinhu
pfungwa:
Kirasi yezvinyorwa zvisiri zvesimbi zvine refractoriness isiri pasi pe1580 ° C.Refractoriness inoreva tembiricha yeCelsius apo iyo refractory cone sampuli inopokana nekuita kwekushisa kwepamusoro pasina kupfava uye kunyungudika pasi pemamiriro ekusava nemutoro.Nekudaro, iyo chete tsananguro yerefractoriness haigone kutsanangura zvizere zvinhu zvinoramba, uye 1580 ° C haina mhedziso.Ikozvino inotsanangurwa sezvinhu zvese izvo zvemuviri nemakemikari zvimiro zvinobvumira kuti zvishandiswe munzvimbo yepamusoro yekupisa zvinonzi refractory zvinhu.Refractory zvinhu zvinoshandiswa zvakanyanya musimbi, indasitiri yemakemikari, peturu, kugadzira michina, silicate, simba uye mamwe maindasitiri minda.Ndivo vakakura muindasitiri yemetallurgical, vanoverengera 50% kusvika 60% yehuwandu hwakabuda.
mhedzisiro:
Refractory zvinhu zvinoshandiswa munzvimbo dzakasiyana-siyana dzehupfumi hwenyika senge simbi, isiri-ferrous simbi, girazi, simende, ceramics, petrochemicals, michina, boilers, indasitiri yemwenje, magetsi emagetsi, indasitiri yemauto, nezvimwe, uye zvakakosha zvekushandisa. chengetedza kushanda kwekugadzira uye kuvandudzwa kwetekinoroji yemaindasitiri ari pamusoro.Inoita basa rakakosha uye risingadzokerike mukuvandudza kwepamusoro-tembiricha yekugadzirwa kwemaindasitiri.
Kubva 2001, ichisundwa nekukasira kusimukira kwemaindasitiri ekupisa kwepamusoro akadai sesimbi nesimbi, simbi dzisina ferrous, petrochemicals, uye zvekuvakisa, iyo refractory indasitiri yakaramba ichikura zvakanaka uye yave mugadziri mukuru uye mutengesi wezvinhu zvinoramba mu nyika.Muna 2011, kugadzirwa kweChina kusingadzoreki kwakaverengera ingangoita makumi matanhatu neshanu muzana epasi rose, uye kugadzirwa kwayo uye vhoriyamu yekutengesa yakaramba ichiiswa pekutanga pasirese.
Kuvandudzwa kweindasitiri refractory kwakabatana zvakanyanya nekuchengetedza zvicherwa zvemumba.Bauxite, magnesite uye graphite ndiwo matatu makuru erefractory zvinhu.China ndeimwe yevatatu pasi rose vanotengesa kunze kwebauxite, nzvimbo huru pasi rose yekuchengetedza magnesite, uye mutengesi mukuru wegraphite kunze kwenyika.Zviwanikwa zvakapfuma zvakatsigira zvigadzirwa zveChina zvekuramba kwemakumi emakore ekukurumidza kusimudzira.
Nenguva ye "Gumi Nemashanu-Yegore reChirongwa", China iri kukurumidza kubviswa kwechinyakare uye chakanyanya-kudya simba rekugadzira.Indasitiri ichatarisa kusimudzira uye kusimudzirwa kwemavira matsva ekuchengetedza simba, kuvandudzwa kwehunyanzvi hwekuchengetedza simba, manejimendi emagetsi, kudzora kuburitsa kwe "marara matatu" uye kushandiswa kwezviwanikwa zve "marara matatu" Recycling, nezvimwe. kudzokorodza zviwanikwa uye kushandiswazve kwezvinhu zvinoramba mushure mekushandiswa, kuderedza kuburitswa kwemarara, kunatsiridza mashandisirwo ezviwanikwa, uye kusimudzira zvakakwana kuchengetedza kwesimba uye kuderedza kubuda.
Iyo "Refractory Industry Development Policy" inoratidza kuti kushandiswa kweyuniti yezvinhu zvinoramba muindasitiri yesimbi yeChina kunosvika makirogiramu makumi maviri nemashanu patani yesimbi, uye ichawira pasi pemakirogiramu gumi nemashanu panosvika 2020. Muna 2020, zvigadzirwa zveChina zvinoramba zvichirarama kwenguva refu. , simba rakawanda, risina kusvibiswa, uye rinoshandiswa.Zvigadzirwa zvinosangana nezvinodiwa zvekusimudzira hupfumi hwenyika senge simbi, zvekuvakisa, makemikari, uye maindasitiri ari kusimukira, uye zvichawedzera tekinoroji yezvigadzirwa zvekunze.
Refractory zvinhu zvine marudzi akawanda uye kushandiswa kwakasiyana.Izvo zvinodikanwa kurongedza zvesainzi zvigadziriso zvekufambisira kutsvagisa kwesainzi, sarudzo ine musoro uye manejimendi.Kune dzakawanda nzira dzekurongedza dzezvinhu zvinoramba, zvinosanganisira makemikari hunhu, makemikari mineral composition classification, kugadzira maitiro ekugadzira, uye zvinhu morphology classification.
Classification:
1.Zvinoenderana nedanho refractoriness:
Zvakajairika refractory zvinhu: 1580 ℃ ~ 1770 ℃, yepamusoro refractory zvinhu: 1770 ℃ ~ 2000 ℃, yakakosha giredhi refractory zvinhu:> 2000 ℃
2. Refractory zvinhu zvinogona kukamurwa kuita:
Zvigadzirwa zvakadzingwa, zvigadzirwa zvisina kupiswa, zvigadziriso zvisina kuumbwa
3. Inokamurwa nezvinhu zvemakemikari:
Acid refractory, neutral refractory, alkaline refractory
4. Kuronga maererano nemakemikari mineral composition
Iyi nzira yemhando inogona kuratidza zvakananga kuumbwa kwekutanga uye hunhu hweakasiyana refractory zvinhu.Iyo inzira yakajairika yekuisa mukugadzira, kushandiswa, uye kutsvagisa kwesainzi, uye ine yakasimba inoshanda kukosha kwekushandisa.
Silika (silika), aluminium silicate, corundum, magnesia, magnesia calcium, aluminium magnesia, magnesia silicon, carbon composite refractories, zirconium refractories, special refractories.
6. Kurongeka kwezvinhu zvisina kuumbwa zvigadziriswe (zvakarongedzerwa zvinoenderana nenzira yekushandiswa)
Zvikasa, zvekupfapfaidza zvekupfapfaidza, ramming zvinhu, mapurasitiki, zvekubatisa, zvinhu zvekufungidzira, smear zvinhu, yakaoma vibrating zvinhu, zvinoyerera zvinokandwa, refractory slurries.
Neutral refractories inonyanya kuumbwa nealuminium, chromium oxide kana kabhoni.Iyo corundum chigadzirwa chine zvinopfuura 95% alumina ndeyepamusoro-mhando refractory zvinhu zvine huwandu hwakawanda hwekushandisa.
Chiping Wanyu Indasitiri uye Trade Co., Ltd., yakavambwa muna 2010, inyanzvi mukugadzirwa kwezvinhu zvisingapfekeki uye zvinoramba: jecha jecha rewhite corundum, hupfu hwakatsetseka, uye zvigadzirwa zvejecha regranular.
Kupfeka-resistant nhevedzano yakatarwa: 8-5#, 5-3#, 3-1#, 3-6#, 1-0#, 100-0#, 200-0#, 325-0#
Granular jecha zvirevo: 20#, 24#, 36#, 40#, 46#, 54#, 60#, 80#, 100#, 150#, 180#, 200#, 220#, 240#,
Nguva yekutumira: Zvita-30-2021