Maitiro ekusarudza refractory zvidhinha lining yezvikamu zvakasiyana zve blast furnace

Iyo blast furnace ndiyo inonyanya kunyungudutsa midziyo. Iine hunhu huri nyore hweveruzhinji uye hukuru hwekugadzira. Refractory zvidhinha lining inoita basa risingadzimiki muchoto chinoputika, asi refractory zvidhinha mbiru yemadziro evira inokanganiswa nezvakawanda zvinhu panguva yekugadzira. Inokukurwa zvishoma nezvishoma. Nokudaro, kuitira kuti uwedzere hupenyu hwebasa remoto unoputika, zvakakosha kutenga refractory brick linings zvinonzwisisika. Nzira yekusarudza refractory zvidhinha linings yechikamu chimwe nechimwe ndeiyi:

(1) Choto chehuro. Kunyanya kutakura kukanganisa uye kubvongodzwa kwevanhu, kazhinji zvidhinha zvesimbi kana zvidhinha zvesimbi zvakatonhodzwa nemvura zvinoshandiswa.

(2) Chikamu chepamusoro chechoto. Ichi chikamu inzvimbo iyo kabhoni evolution reaction 2CO2-CO + C inowanzoitika, uye kukukurwa kwesimbi alkali uye zinc vapor kunoitikawo munzvimbo iyi. Mukuwedzera, kuputika uye kupera kwechaji inodonha uye kukwira kwegesi kuyerera Saka, zvinhu zvinoramba zvine makemikari akanaka ekupikisa uye kupfeka kusagadzikana kunofanira kusarudzwa. Inonyanya kukodzera ndeye-high-density m pasi zvidhinha, high-density yechitatu-class alumina zvidhinha kana phosphoric acid-impregnated ivhu zvidhinha. Mazuva ano mavhiri makuru anoputika anoshandisa madziro matete. Muchigadziro, 1 ~ 3 zvikamu zve reverse buckle inotonhorera stave inowanzoshandiswa kutsiva iyo yezvidhinha lining.

(3) Nzvimbo dzepakati nedzepasi dzemuviri wechoto uye chiuno chechoto. Iyo huru nzira yekukuvadza ndeyekupisa kwekutyisa, kupisa kwakanyanya gasi kukukurwa, mhedzisiro yealkali simbi, zinc uye kabhoni shanduko, uye kukukurwa kwemakemikari kwekutanga slag. Iyo yezvidhinha lining inofanira kusarudzwa yekupisa kutyisa kuramba uye kupikisa Pakutanga slag erosion uye anti-scouring refractory zvinhu. Iye zvino mafuro makuru ekuputika kumba nekune dzimwe nyika anosarudza kushanda kwakanaka asi anodhura silicon carbide zvidhinha (silicon nitride bonding, self bonding, Sialon bonding) kuti uwane hupenyu hunodarika makore masere. Kudzidzira kwakaratidza kuti, Hazvinei kuti zvinhu zvinoramba zvakanaka sei, zvichaparadzwa, uye zvichagadzikana kana zvasvika pakuenzanisa (inenge hafu yehupamhi hwepakutanga). Nguva iyi inenge makore matatu. Kutaura zvazviri, kushandiswa kwekupisa aluminium kabhoni zvidhinha nekushanda kwakanaka (mutengo unodhura) Vakawanda), chinangwa ichi chinogonawo kuwanikwa. Naizvozvo, aruminiyamu-kabhoni zvidhinha zvinogona kushandiswa mukuputika kwefurnaces ye8m3 uye pazasi.

(4) Choto. Chikonzero chikuru chekukuvadza ndiko kuputika kwepamusoro-kupisa gasi uye kuputika kwesimbi ye slag. Kupisa kunoyerera muchikamu ichi kwakasimba kwazvo, uye chero chinhu chinopesana hachikwanisi kuramba zvinhu kwenguva yakareba. Hupenyu hwezvinhu zvinoramba muchikamu ichi hahuna kureba (kureba 1 ~ 2 mwedzi, mapfupi 2 ~ 3 masvondo), kazhinji shandisa zvinhu zvinoramba zvine refractoriness yakakwira, tembiricha yekunyorovesa inorema uye yakanyanya kuwanda, senge yakakwira aluminium zvidhinha, aluminium. zvidhinha zvekabhoni, nezvimwewo.

(5) Nzvimbo yemoto tuyere. Iyi nzvimbo ndiyo chete nzvimbo mumoto unoputika umo oxidation reaction inoitika. Iyo tembiricha yepamusoro inogona kusvika 1900 ~ 2400 ℃. Iyo yezvidhinha yezvidhinha yakakuvadzwa nekupisa kwekushushikana kunokonzerwa nekupisa kwakanyanya, pamwe nekukwira kwekushisa kwegasi kukukurwa uye slag iron erosion. Alkali metal erosion, scouring of circulating coke, etc. Modern blast furnaces anoshandisa zvidhinha zvakasanganiswa kuvaka nzvimbo yekupisa mhepo yezuva, yakagadzirwa nehigh aluminium, corundum mullite, brown corundum uye silicon nitride yakasanganiswa nesilicon carbide, nezvimwewo, izvo zvinobatsirawo zvakare. Kupisa yakadzvanywa kabhoni block.

(6) Chikamu chepasi chechoto nechepazasi pechoto. Munzvimbo umo mutsara wemoto unoputika wakasvibiswa zvakanyanya, chiyero chekuora chakagara chiri chikonzero chekugadzirisa hupenyu hwechizvarwa chekutanga chekuputika kwemoto. Nekuda kwekushaikwa kwekutonhodza muchoto chekutanga pasi, mazhinji emhando imwe chete yeramic refractory zvinhu zvakashandiswa, saka kupisa kushushikana Kutsemuka mumasonry, simbi yakanyungudutswa inopinda mumusono uye kuyangarara kwechoto chepasi zvidhinha ndizvo zvikonzero zvikuru zvekukuvadza. . Iye zvino chimiro chakanaka chezasi chevira (kapu yeceramic, yakazununguka kuruma, nezvimwewo) uye kutonhora, pamwe chete nepamusoro-soro brown corundum, grey corundum zvidhinha uye Kushandiswa kwe carbonaceous micropores uye zvidhinha zvinopisa zvinopisa zvakanyanya kuwedzera hupenyu hwehuni hunoputika. pasi. Zvisinei, kupinda uye kuparara kwesimbi yakanyungudutswa pazvidhinha zvekabhoni, kurwiswa kwemakemikari e-alkali metals pane kabhoni zvidhinha, uye kuparadzwa kwekabhoni zvidhinha nekupisa kwekupisa, CO2 uye H2O Kusvibiswa kwekabhoni zvidhinha kuchiri chinhu chakakosha chinotyisidzira hupenyu hwe pasi pechoto nechoto.