Zeziphi izinto ezinqanda umbane kwindawo nganye yesitovu somlilo esiqhumayo?

Uhlalutyo lwe-refractory configuration of the part of the blast furnace hot blast stove kwabelwana ngayo ngabavelisi bezitena eziphikisayo.

Isitovu somlilo esitshisayo siyindawo yokuvuselela ubushushu, ikakhulu ukubonelela ngemekobume yobushushu obuphezulu bokutshisa umoya wesithando somlilo ukufezekisa ubushushu bomoya obuphezulu bokusebenza, ngokubanzi i-1200 ~ 1350 ℃. Amaziko aqhelekileyo ahambelanayo ashushu ashushu kwiziko eziqhumayo yi-3 ~ 4. Ukuze kuhlangatyezwane neemfuno zomthombo wobushushu obuphezulu kunye nexesha elide lenkonzo yeziko ezishushu ezishushu, izixhobo zokumelana neziqhumiso ezishushu kufuneka zibe neempawu zokuxhathisa ubushushu obuphezulu kunye nokumelana noxinzelelo oluphezulu, ukuxhathisa okulungileyo kokuchwechwela, umthamo omkhulu wobushushu obuthile, kunye Ukuqhuba kakuhle kwe-thermal. .

Ngokwesakhiwo senxalenye nganye yesitofu esitshisayo kunye nefuthe lemeko yesithando somlilo, izinto ezichasayo zesitofu somlilo zingahlula zibe ngamacandelo amabini: ukushisa okuphezulu kunye nokushisa okuphantsi. Amacandelo aphezulu okushisa: kubandakanywa inxalenye ephezulu yegumbi lokutshisa, izitena ze-checker kwindawo ephezulu ye-regenerator, izitena ezinkulu zodonga, phezulu kwesithando somlilo, njl.; iqondo lokushisa eliphakathi kunye neliphantsi: kubandakanywa iindawo eziphakathi kunye nezisezantsi zegumbi lokutsha, izitena ze-checkered phakathi kunye neendawo ezisezantsi ze-regenerator, izitena ezinkulu zodonga, kunye neendawo zokuphuma, njl.

Ngokwesakhiwo sesitofu esitshisayo, sinokwahlulwa sibe: phezulu kwesithando somlilo, udonga olukhulu lwe-regenerator, isitena sokukhangela, udonga lokwahlula, udonga olukhulu lwegumbi lokutsha, i-burner kunye nezinye iindawo. .

1. Irefractory phezulu kwiziko:

Umphezulu wesithando somlilo ubekwe kwindawo yokushisa ephezulu ngaphakathi kwesithando somlilo esitshisayo, apho izinto eziphikisayo zidibanisa ngqo nomoya oshushu kunye negesi ye-flue. Izinto eziphikisayo ezinokuxhathisa ukothuka kwe-thermal kunye nokumelana ne-creep kufuneka kukhethwe. Ngokuqhelekileyo, izitena ze-silica kunye nezitena zodongwe ezisezantsi zingasetyenziswa. Izitena eziphakamileyo ze-alumina, izitena eziphakamileyo ze-alumina, izitena ze-mullite, izitena zodongwe ezilula, izitena ze-andalusite, ipeyinti yokutshiza enganyangekiyo, ipeyinti yokutshiza ngodongwe, njl.

2. Izixhobo eziphikisayo zodonga olukhulu lwe-regenerator:

Udonga olukhulu lwe-regenerator ludonga olukhulu lwesitovu somlilo otshisayo, apho ubushushu obuphezulu buphezulu, kwaye ubushushu bomoya phakathi kunye namacandelo aphantsi aphantsi. Inxalenye ephezulu yodonga olukhulu lwe-regenerator inokusebenzisa izitena ze-silica, izitena ezisezantsi ze-alumina ephezulu, kunye nokushisa okuphezulu kwe-aluminium. Izitena, izitena ze-mullite, izitena zodongwe ezikhanyayo, ipeyinti yokutshiza echasene ne-asidi, ipeyinti yokutshiza ukukhanya, njl.

Embindini, izitena ezisezantsi ze-alumina, izitena ze-mullite, izitena ze-andalusite, izitena zodongwe ezikhanyayo, ipeyinti yokutshiza ngodongwe, ipeyinti yokutshiza ukukhanya, njl.

Inxalenye engezantsi inokusebenzisa izitena zodongwe, izitena eziphakamileyo ze-alumina, izitena zodongwe ezikhanyayo, izitena eziphezulu ze-alumina zokugquma, izitena zodongwe, iipeyinti zokutshiza ezikhanyayo, ikhonkrithi ekwazi ukumelana nobushushu, njl.

3. Izixhobo zokurhoxisa izitena zokujonga:

Ummandla ophezulu wokushisa ophezulu wezitena ze-checker ze-regenerator kufuneka zenziwe ngezinto eziphikisayo kunye nokuzinza komthamo ophezulu wokushisa, ukubola kunye nokuxhathisa i-creep. Amalungu aphakathi kunye nasezantsi athwala uxinzelelo olukhulu oluvela kwizinto eziphezulu eziphikisayo. Ukongeza ekwaneliseni ukusebenza kwayo kokurhubuluza, ikwadinga ukusebenza kakuhle kwamandla ayo okucinezela ubushushu obuqhelekileyo kunye nozinzo lokothuka kwe-thermal.

Inxalenye ephezulu yezitena zokujonga ngokuqhelekileyo isebenzisa izitena ze-silicon zokujonga kunye nezitena eziphezulu ze-aluminium zokujonga, indawo ephakathi isebenzisa izitena ezisezantsi ze-aluminium ezisezantsi kunye nezitena eziphezulu ze-aluminium zokujonga, kwaye inxalenye engezantsi isebenzisa i-low-creep high-aluminium checker. izitena kunye nezitena zodongwe zokujonga.

Ukongeza, i-regenerator ye-spherical hot blast stove ngokubanzi isebenzisa iibhola eziphikisayo ukutshintsha izitena ze-checker, eyona ixhaphake kakhulu ziibhola eziphezulu ze-alumina refractory, kunye neebhola ezichasayo zodongwe zingasetyenziswa kwiindawo zobushushu obuphantsi.

4. Imathiriyeli yokuqhankqalaza kwiindonga zokwahlula:

Udonga lokwahlula ludonga lwezitena eziphikisayo olwahlula i-regenerator kunye negumbi lokutshisa. Ukuphakama kwodonga lokwahlula ngokuqhelekileyo ku-400 ~ 700mm ngaphezu kwezitena ze-checker ze-regenerator ukuqinisekisa ukuhanjiswa komoya okufanayo. Ngenxa yomahluko omkhulu wamaqondo obushushu phakathi kwamacala amabini odonga lokwahlulahlula, umahluko wokwandiswa kwe-thermal eludongeni uba mkhulu, nto leyo ebangela ukuba izinto eziphikisayo zodonga lokwahlula zigqwethe, zigobe kwaye ziqhekeke. Ngoko ke, izitena ze-silica kunye nezitena eziphezulu ze-alumina zingasetyenziselwa kwindawo ephezulu yezinto ezichasayo zodonga lokwahlula.

Izitena eziphezulu ze-alumina kunye nezitena eziphezulu ze-aluminiyam zingasetyenziselwa phakathi, kunye nezitena ezisezantsi ze-alumina kunye nezitena eziphezulu ze-aluminium zingasetyenziswa kwindawo yokutshatyalaliswa kwe-thermal.

Izitena zodongwe kunye nezitena zodongwe ezilula zingasetyenziselwa inxalenye engezantsi.

5. Izixhobo eziphikisayo zodonga olukhulu lwegumbi lokutsha:

Udonga olukhulu lwegumbi lokutshisa ngokusisiseko lufana nempahla ephikisayo yokubuyisela kwakhona. Inxalenye ephezulu inokusebenzisa izitena ze-silica, izitena eziphakamileyo ze-alumina, izitena eziphezulu ze-alumina zokugquma, izitena ezikhanyayo ze-silica, izitena zodongwe ezikhanyayo, ipeyinti yokutshiza, njl.

Izitena eziphezulu ze-alumina, i-low-creep high-alumina izitena, izitena eziphezulu ze-alumina, izitena zobumba ezikhanyayo, ipeyinti yokutshiza, njl.

Inxalenye engezantsi ingasebenzisa izitena zodongwe, izitena eziphakamileyo ze-alumina, izitena zodongwe ezilula, ipeyinti yokutshiza, ikhonkrithi ekwazi ukumelana nobushushu, njl.

6. Umbhobho wokutshisa:

Umbhobho wesitshisi sisixhobo esithumela umoya oxubene negesi kwigumbi lokutsha ukuze uvuthe. Kukho izinto zetsimbi kunye ne-ceramic. Okwangoku, uninzi lwezitshisi ze-ceramic zisetyenziswa. Ukuqinisekisa ukuxinana komoya, ingqibelelo kunye nobomi benkonzo yombhobho wokutshisa, kufuneka ukuba i-coefficient yokwandiswa kwe-linear kunye nokumelana nokunyuka kwe-refractories apha kulungile, ngoko umlomo wesitshisi unokwenziwa nge-mullite, i-mullite-cordierite, ephakamileyo. -i-aluminiyam-cordierite, i-aluminiyam ephezulu ye-castable preforms, njl.

7. Imathiriyeli yezinye iindawo zesitovu esiqhumayo:

(1) Izinto ezikwaziyo ukuxhathisa kwimibhobho yomoya oshushu, kubandakanywa imibhobho yokuhambisa umoya engundoqo, imibhobho yesebe kunye nemibhobho ejikeleze umoya oshushu. Ngokuqhelekileyo, yenziwe ngezitena zodongwe ezikhanyayo, kunye ne-hot outlet kunye ne-interface ye-air duct interface ingenziwa ngezitena eziphezulu ze-alumina kunye nezitena ze-mullite. Isitovu soqhushumbisi olushushu olungqonge umbhobho kunye nombhobho wesebe lonikezelo komoya unokugalelwa ngokudityanisiweyo kunye ne-aluminiya ephezulu yesamente enokugalelwa kunye ne-phosphate refractory.

(2) Ivalve yomoya oshushu yenziwe ngezinto eziphikisayo, ngoko ke macala omabini afudunyezwa kwaye axhomekeke kwi-vibration yomatshini, ukubola kunye notshintsho lobushushu. Ubomi be-masonry yezitena zodongwe kunye nezitena eziphezulu ze-alumina zi-6 ukuya ku-Oktobha, kunye ne-alumina ephezulu ye-samente ye-refractory castables isetyenziswa. Ukugalela ubomi bokubumba kunokufikelela malunga ne-1.5 iminyaka.

(3) Izixhobo ezixhathisayo zisetyenziselwa umbhobho kunye netshimini. Itshimini yeflue isetyenziselwa ikakhulu ukukhutshwa kwegesi yombane. Irhasi yeflue inde kune-flue gas. Ngoko ke, izinto ezinqambileyo ze-flue zingakhiwa ngezitena zodongwe, kwaye i-chimney inokugalelwa ngekhonkrithi. Inxalenye engezantsi ibekwe ngezitena zodongwe njengoluhlu olukhuselayo.