Moj Tej Tawg Rauv Taws (27 Duab): Nws Yog Dab Tsi? Kev Ntom Ntom Ntawm Slag Granulated, Qhov Sib Txawv Ntawm Kev Tsim Cov Hlau, Siv Kev Zom Ziab, Hnyav 1 M3 Thiab Muaj Pes Tsawg Le

2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2023-12-16 05:41

Nws yog ib qho tseem ceeb heev rau cov neeg siv khoom kom paub seb nws yog dab tsi - tawg lub tshuab ua kom sov slag. Tus yam ntxwv tob tob tsis tuaj yeem txwv rau kev paub nrog qhov ntom ntawm cov slag, nrog nws qhov sib txawv los ntawm kev ua hlau, nrog qhov hnyav ntawm 1 m3 thiab cov tshuaj lom neeg muaj pes tsawg leeg. Nws yog ib qho tseem ceeb kom paub seb kev siv cov khoom zom zaws yog dab tsi thiab yam tshwj xeeb ntawm cov khoom lag luam zoo li cas.

Nws yog dab tsi?

Lub npe "blast-furnace slag" hais txog hom tshwj xeeb ntawm cov pob zeb dag dag. Lawv tshwm sim los ntawm cov khoom lag luam ntawm kev tsim cov tshuab ua kom tawg rauv-li no lub npe sib xws. Cov pob zeb pov tseg tau fused nrog cov fluxes muaj nyob hauv tus nqi, thiab qhov no yog li cas cov khoom slag tshwm sim.

Yog tias cov txheej txheem ua kom tawg tau ua tiav nruj me ntsis raws li thev naus laus zis, tom qab ntawd cov slag zoo li cov khoom lag luam (lub teeb grey, nrog daj, ntsuab thiab qee qhov sau tseg). Yog tias cov chaw tsim khoom ua txhaum kev tsim thev naus laus zis, tom qab ntawd lwm cov xim tshwm tuaj - dub, qhov no qhia txog qhov siab ntawm cov hlau hauv cov khoom tsim.

Qhov kev ntxhib los mos ntawm slag pawg kuj txawv hauv qhov txwv dav. Paub cov kev xaiv:

• zoo li pob zeb;
• iav zoo li;
• zoo ib yam li plooj (porcelain).

Muaj pes tsawg leeg thiab yam ntxwv

Txij li txawm tias ntawm ib lub tuam txhab tau txais cov ntaub ntawv raw los ntawm lub voj voos ruaj khov ntawm cov neeg xa khoom, kev siv thev naus laus zis tuaj yeem hloov pauv, nws yog ib qho uas nyob hauv ntau qhov xwm txheej cov khoom thiab muaj pes tsawg leeg ntawm cov slag kuj txawv heev. Koj tuaj yeem nyeem ntau zaus tias cov khoom no yog tshuaj lom ze rau cov cement . Thiab nqe lus no tsis yog tsis muaj lub hauv paus. Txawm li cas los xij, muaj cov calcium oxide me ntsis hauv qhov hnyav, tab sis muaj qhov pom tseeb ntau dua silicon dioxide, aluminium oxide thiab lwm yam sib xyaw zoo sib xws.

Nws yuav tsum tau sau tseg tias oxides feem ntau tsis yog nyob rau hauv daim ntawv dawb huv, tab sis yog ib feem ntawm lwm qhov sib xyaw . Tsis tas li, txij li cov txheej txheem thev naus laus zis cuam tshuam nrog kev txias txias ntawm cov txheej txheem ua tiav, cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov slag suav nrog iav aluminosilicate. Nws muaj qhov muaj peev xwm zoo los cuam tshuam nrog lwm yam tshuaj. Ib qho ntsiab lus tseem ceeb sib cais yog qhov nqus tshwj xeeb ntawm 1 m3 ntawm lub tshuab ua kom tawg tawg, uas tseem yog qhov ntom ntom ntom ntom ntom, qhov tseeb (qee zaum cov ntsiab lus no tau diluted, tab sis lawv tseem nyob sib cuam tshuam rau qhov laj thawj pom tseeb). Daim duab no tuaj yeem sib txawv ntawm 800 txog 3200 kg, nyob ntawm seb cov khoom siv pub mis, ua cov txheej txheem thiab lwm yam thev naus laus zis yooj yim.

Hauv kev xyaum, txawm li cas los xij, feem ntau slags hnyav, txawm li cas los xij, tsis tsawg dua 2.5 thiab tsis ntau dua 3.6 g rau 1 cm3 . Qee lub sij hawm nws tseem hnyav dua li cov hlau yaj. Tsis muaj qhov xav tsis thoob - txwv tsis pub nws yuav tsis tuaj yeem pom meej thiab muaj peev xwm cais cov slag loj los ntawm cov khoom tseem ceeb ntawm cov nroj tsuag hlau. Txawm tias qhov tshwj xeeb GOST 3476, tau saws hauv xyoo 1974, siv rau lub tshuab ua kom tawg tawg rauv.

Nco tseg: Tus txheej txheem no tsis npog cov khoom lag luam muab los ntawm ferroalloys thiab cov hlau nplaum hlau nplaum ntawm txhua qhov keeb kwm.

Tus txheej txheem normalizes:

• cov ntsiab lus ntawm txhuas oxide thiab qee yam tshuaj;
• qhov kev faib ua feem ntawm cov khoom tawg uas tsis tau ua tiav tag nrho cov granulation;
• nominal loj ntawm tus qauv ntau (500 tons);
• qhov xav tau rau kev kuaj coj los ntawm txhua qhov khoom xa tawm cais;
• rov ntsuam xyuas cov txheej txheem rau cov lus nug lossis tsis meej pem;
• xav tau rau kev khaws cia thiab txav mus los ntawm cov khoom tiav.

Cov txheej txheem txheej txheem ntawm cov cua sov ua kom sov ntawm lub tshuab ua kom tawg tau ua kom yog 0.21 W / (mC) . Qhov no yog qhov qhia tau zoo nkauj zoo nkauj, thiab tseem phem tshaj li ntawm cov ntxhia pob zeb. Yog li ntawd, xws li rwb thaiv tsev yuav tsum tau muab tso rau hauv txheej tuab. Hauv cov yam ntxwv ntawm cov khoom xa tawm, xws li qhov ntsuas raws li qhov tsis zoo yuav tsum tau qhia. Qhov feem ntau ntawm cov nplej sib xyaw, qhov tsawg dua "nplaum" nruab nrab ntawm lawv, thiab tseem nyuaj dua nws yog npaj cov tshuaj thiab tuav cov pawg ua ke.

Nws muaj txiaj ntsig zoo los ceeb toom, Hmoov tsis zoo, ib puag ncig tus phooj ywg ntawm lub tshuab ua kom tawg rauv slag yog cov lus nug heev . Nws siv nyob rau hauv kev sib cuag ncaj qha nrog ib puag ncig, piv txwv li, hauv txoj kev tsim kho, ua rau muaj kev pheej hmoo loj, feem ntau ua rau muaj kev sib kis ntawm cov hlau hnyav. Tab sis yog tias peb tshem tawm qhov kev yaig ntawm huab cua los ntawm av, yaj dej thiab nag lossis daus, tom qab ntawd qhov teeb meem feem ntau daws. Yog li ntawd, nws yog qhov tsim nyog tsis tso tseg kev siv cov khoom lag luam slag - hauv txhua qhov xwm txheej, nws yog qhov zoo dua li ntuav nws tawm ncaj qha. Txawm li cas los xij, ib tus yuav tsum xyuam xim rau cov xwm txheej ntawm kev siv.

Qhov sib txawv ntawm steelmaking slag

Qhov tshwj xeeb tseem ceeb yog tias cov khoom lag luam tau txais siv cov cuab yeej sib txawv kiag li. Thiab yog li nws cov tshuaj lom neeg muaj pes tsawg leeg, thiab yog li ntawd, ntawm chav kawm, nws cov khoom, sib txawv heev. Cov hlau-smelting pov tseg yog denser thiab pom tseeb tsis haum raws li cov ntxhia yooj yim muab tub lim lossis rwb thaiv tsev. tab sis nws qee zaum siv los ua ballast hauv kev tsim kho lossis ua ke rau kev sib xyaw asphalt.

Cov kev sim tau muab cov txiaj ntsig tau zoo, tab sis tseem yog cov khoom tawg tawg rauv rauv tseem yog cov khoom yooj yim dua thiab ntxim nyiam.

Kev siv tshuab ntau lawm

Kev tsim cov slag yog cuam tshuam nrog smelting hauv lub cub tawg tshwj xeeb, piv txwv li, npua hlau. Cov khoom uas peb xav tau tawm ntawm lub tshuab ua kom tawg, ua kom sov txog li 1500 degrees. Yog li ntawd, txhawm rau kom muaj peev xwm ua haujlwm nrog nws, nws yog qhov tsim nyog kom txias cov slag. Nws yuav ntev dhau los tos kom qhov no tshwm sim ib txwm muaj. Yog li ntawd, lawv xyaum:

• o (lossis lwm yam, dej txias txias);
• tshuab nrog cov dav hlau ya;
• tsoo los yog sib tsoo ntawm cov cuab yeej tshwj xeeb.

Nws yuav tsum raug sau tseg tias txheej txheem txheej txheem cuam tshuam ncaj qha rau kev sib xyaw thiab cov yam ntxwv ntawm cov khoom tiav. Txhua tus granulators paub txog qhov no, thiab yog li ntawd lawv tau coj mus rau hauv tus account lub sijhawm ntawd thaum qee qhov haujlwm tau ua. Piv txwv li, nrog cua txias, silicates thiab aluminosilicates yuav yeej hauv cov slag. Hauv qee kis, cov slag kuj tseem raug tsoo tshuab - cov txheej txheem no yog siv txawm tias nws tseem ua kua, lossis tom qab ib nrab ua kom khov. Cov khoom loj tau ua tiav rau hauv cov nplej me hauv txoj hauv kev uas txhim kho kev ua haujlwm ntxiv thiab txhim kho qhov zoo ntawm cov khoom tiav.

Tau kawg, tsis muaj leej twg tsim cov tshuab ua kom tawg rau lub hom phiaj. Cia peb hais ntxiv tias qhov no ib txwm tsuas yog ua los ntawm cov khoom lag luam hlau.

Kev tsim cov granules tuaj yeem ua tiav los ntawm ntau txoj hauv kev, siv cov cuab yeej tshwj xeeb. Cov tshuab rau ntub thiab ib nrab qhuav granulation tau paub. Hauv txoj hauv kev ntub, cov slag tau nkag rau hauv cov pob zeb ua kom muaj zog ntxiv nrog dej.

Nws yog ib txwm coj los faib cov pas dej ua ke rau ntau qhov haujlwm. Txoj hauv kev no ua kom muaj kev txuas ntxiv ntawm cov txheej txheem tsim khoom. Sai li cov khoom siv ua kom sov tau nchuav rau hauv ib feem, lwm qhov yog npaj kom tshem tawm cov txias txias. Hauv cov tuam txhab niaj hnub no, kev tshem tawm yog nqa los ntawm kev nqa cranes. Tus nqi dej seem nyob ntawm qhov porosity, thiab qhov porosity nws tus kheej yog txiav txim siab los ntawm cov yam ntxwv ntawm cov txheej txheem txias.

Txhawm rau ua kom cov slag ib nrab qhuav, lawv feem ntau siv rau cov khoom sib tsoo . Cov txiaj ntsig zoo ib yam yog ua tiav los ntawm kev pov cov cua txias, tab sis tseem tsis tau ua kom khov tag nrho rau saum huab cua. Raws li qhov tshwm sim, cov khoom siv yog ntom ntom thiab hnyav dua li cov khoom siv ntub dej. Cov dej noo ntawm cov khoom tiav yuav yog 5-10%. Qhov siab dua qhov kub yaj, qhov sib zog ua tiav cov khoom yuav yog.

Saib

Kev siv tshuaj tua hluav taws-lub tshuab ua kom tawg hlau tau los ntawm smelting npua hlau. Nyob ntawm qhov feem thiab ntawm qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom, cov khoom lag luam no suav tias yog cov khoom ntxeem tau lossis ntom. Cov pob zeb tsoo nrog qhov tshwj xeeb ntau ntom qis dua 1000 kg rau 1 m3 thiab cov xuab zeb nrog qhov tshwj xeeb ntau ntom hauv qab 1200 kg rau 1 m2 tau suav tias yog ntxeem tau.

Lub luag haujlwm tseem ceeb yog ua los ntawm kev hu ua kev hloov pauv yooj yim, uas txiav txim siab qhov alkaline lossis acidic xwm txheej ntawm cov khoom.

Thaum lub sijhawm ua kom txias, cov khoom tuaj yeem:

• khaws amorphous;
• crystallize;
• dhau ib nrab crystallization.

Cov slag hauv av yog tsim los ntawm cov qib me me los ntawm kev sib tsoo ntxiv. Nyob ntawm lub hom phiaj, tuaj yeem ntxiv hydrophobic ntxiv rau ntawd. Cov khoom feem ntau ua tau raws li cov lus qhia tshwj xeeb xyoo 2013. Pob zeb pov tseg tau tsim los ua pov tseg. Nws tus nqi ncaj qha rau kev tsim khoom hlau tsis siab, txawm li cas los xij, thev naus laus zis rau kev ua cov pob zeb pov tseg twb tau tshwm sim.

Scope ntawm daim ntawv thov

Blast rauv slag yog dav siv. Nws txoj haujlwm tseem ceeb ntawm kev thov yog kev tsim cov khoom siv hauv tsev. Txog tam sim no, thaj chaw no tau tsim kho tsis xwm yeem hauv thaj tsam sib txawv ntawm lub tebchaws. Txawm li cas los xij, qhov txo qis ntawm kev thauj mus los ntawm cov khoom siv hauv tsev mus rau cov chaw tsim kho tsuas tuaj yeem txais tos. Txawv teb chaws, tsis yog tsuas yog lub tshuab ua kom tawg rauv slag, tab sis kuj tseem siv cov khoom siv hlau ua hauv txoj kev tsim kho, tab sis qhov no twb yog lub ncauj lus rau kev sib tham sib cais.

Cov khoom lag luam pwm yooj yim tuaj yeem teeb tsa sai, uas ua rau nws zoo ib yam li cov cement. Kev siv cov huab hwm coj zoo li no los pov tseg txoj hauv kev ib puag ncig tau nthuav dav zuj zus. Tsis tas li, nyob rau ntau qhov chaw, lawv nrhiav kev los txhawb cov ntaub ntawv txhawb nqa ntawm lub hauv paus. Muaj cov kev txhim kho ntawm kev siv cov ntawv pov tseg pov tseg ua lub hauv paus tseem ceeb ntawm kev ua vaj tse. Twb muaj ntau tus ntawv tshaj tawm uas qhov kev paub no tau txhawb nqa.

Crushed slag yog tsim los ntawm crushing pob zeb slag thiab hla nws los ntawm cov ntxaij vab tshaus. Daim ntawv thov tshwj xeeb cuam tshuam feem ntau los ntawm cov khoom siv. Kev siv cov khoom lag luam xws li:

• muab cov khoom sib xyaw ua kom ruaj khov;
• ballast cushions ntawm txoj kev tsheb nqaj hlau;
• txhais tau tias ntxiv dag zog rau qhov nqes hav;
• cov khoom nraub qaum thiab qhov chaw;
• txhais tau tias ntawm kev npaj cov chaw.

Cov pob zeb slag tau siv los ua cov cinder blocks . Nws kuj tseem xav tau rau rwb thaiv tsev cua sov. Qee zaum blast-furnace slag tau siv rau kev tso kua: hauv lub peev xwm no nws nrawm zuj zus, hloov mus ua xuab zeb, tab sis tseem ua haujlwm tau zoo. Qhov loj me me kuj tuaj yeem siv rau xuab zeb blasting.

Daim ntawv thov no muaj ntau heev, thiab cov khoom xav tau yog muab los ntawm ntau lub tuam txhab ua lag luam.