Ana iya yin nazarin tasirin adadi na rarrabawar girman barbashi na coke na albarkatun ƙasa akan permeability na Layer ɗin kayan da daidaiton calcination a cikin injin juyawa ta hanyar alaƙar da ke tsakanin sigogin girman barbashi da alamun tsari kamar haka:
I. Tasirin Adadi na Rarraba Girman Barbashi akan Dawwamammen Tsarin Kayan
Daidaiton Girman Barbashi (Darajar PDI)
- Ma'anar: Ma'aunin rarrabawar girman barbashi (PDI = D90/D10, inda D90 shine girman sieve wanda kashi 90% na barbashi ke wucewa ta ciki, kuma D10 shine girman sieve wanda kashi 10% na barbashi ke wucewa ta ciki).
- Tsarin Tasiri:
Ƙaramin ƙimar PDI (wanda ke nuna girman barbashi iri ɗaya) yana haifar da mafi girman porosity na Layer ɗin kayan, tare da ma'aunin permeability (ƙimar K) yana ƙaruwa da kusan 15% zuwa 20%. - Bayanan Gwaji:
Idan PDI ta ragu daga 2.0 zuwa 1.3, raguwar matsin lamba a cikin murhun zai ragu da kashi 22%, kuma yawan kwararar iskar gas yana ƙaruwa da kashi 18%, wanda ke nuna babban ci gaba a cikin iskar gas. - Tsarin aiki:
Girman barbashi iri ɗaya yana rage abin da ƙananan barbashi ke cike gibin da ke tsakanin manyan barbashi, yana guje wa tasirin "gadowar barbashi" don haka yana rage juriyar iska.
Ƙaramin Abun Ciki na Barbashi (<0.5 mm)
- Matsakaici Mai Muhimmanci:
Idan rabon ƙananan ƙwayoyin cuta ya wuce kashi 10%, yawan iskar da ke shiga cikin iskar zai ragu sosai. - Alaƙar Adadi:
Ga kowace ƙarar ƙananan ƙwayoyin cuta ta kashi 5%, raguwar matsin lamba a cikin murhun yana ƙaruwa da kusan kashi 30%, kuma yawan kwararar iskar gas yana raguwa da kashi 25%. - Nazarin Shari'a:
A cikin tukunyar man fetur ta hanyar amfani da coke calcination, lokacin da ƙananan ƙwayoyin suka ƙaru daga kashi 8% zuwa 15%, matsin lamba mara kyau a kan murhun ya ƙaru daga -200 Pa zuwa -350 Pa, wanda hakan ke buƙatar ƙaruwa a cikin ƙarfin fan da aka haifar don ci gaba da aiki, wanda ke haifar da ƙaruwar amfani da makamashi da kashi 12%.
Matsakaicin Girman Barbashi (D50)
- Mafi kyawun Kewaya:
Ana samun mafi kyawun iskar shaka idan D50 yana tsakanin 8 zuwa 15 mm. - Tasirin Karya:
Idan D50 bai kai 5 mm ba, tozarcin Layer ɗin abu yana raguwa zuwa ƙasa da 35%, kuma ma'aunin permeability yana raguwa da 40%;
Idan D50 ya wuce 20 mm, kodayake ramukan suna da yawa, yankin hulɗa tsakanin ƙwayoyin cuta yana raguwa, yana rage ingancin canja wurin zafi da kashi 15% kuma a kaikaice yana shafar daidaiton calcination.
II. Tasirin Adadi na Rarraba Girman Barbashi akan Daidaiton Calcination
Bambancin Rarraba Zazzabi na Daidaitacce (σT)
- Ma'anar:
Alamar kididdiga ta nuna yawan canjin yanayin zafin jiki a cikin murhun, tare da ƙaramin σT wanda ke nuna ƙarin daidaituwar calcination. - Tasirin Girman Barbashi:
Idan girman barbashi ya kasance iri ɗaya (PDI < 1.5), ana iya sarrafa σT cikin ± 15℃;
Idan girman barbashi bai yi daidai ba (PDI > 2.5), σT yana faɗaɗa zuwa ±40℃, wanda ke haifar da ƙonewa ko ƙonewa a cikin gida. - Nazarin Shari'a:
A cikin murhun ƙarfe mai juyawa na aluminum carbon, ta hanyar inganta rarrabawar girman barbashi don rage PDI daga 2.8 zuwa 1.4, daidaitaccen karkacewar abun ciki mai canzawa a cikin samfurin yana raguwa daga 0.8% zuwa 0.3%, wanda ke inganta daidaiton calcination sosai.
Saurin Motsa Jiki na Gaba (Vr)
- Ma'anar:
Saurin turawa na hanyar haɗin amsawar calcination a cikin Layer ɗin kayan, yana nuna ingancin calcination. - Alaƙa da Girman Barbashi:
Ga kowace ƙaruwar kashi 10% a cikin rabon ƙananan ƙwayoyin cuta (<3 mm), Vr yana ƙaruwa da kusan kashi 25%, amma yana iya haifar da saurin amsawa da zafi fiye da kima a gida;
Ga kowace ƙaruwar kashi 10% a cikin rabon ƙwayoyin cuta masu kauri (>20 mm), Vr yana raguwa da kashi 15% saboda ƙaruwar juriyar canja wurin zafi. - Ma'aunin Daidaito:
Idan rarraba girman barbashi ya kasance bimodal (misali, cakuda barbashi 3-8 mm da 15-20 mm), ana iya kiyaye Vr a cikin mafi kyawun kewayon (0.5-1.0 mm/min) yayin da ake tabbatar da daidaito.
Matsayin Cancanta na Samfuri (Q)
- Alaƙar Adadi:
Ga kowace ƙaruwar naúrar 0.5 a daidaiton girman barbashi (watau, raguwar ƙimar PDI), ƙimar cancantar samfurin tana ƙaruwa da kusan kashi 8%;
Ga kowace raguwar kashi 5% a cikin ƙananan ƙwayoyin cuta, ƙimar sharar da ta faru sakamakon ƙonewa ko ƙonewa da yawa tana raguwa da kashi 12%. - Bayanan Masana'antu:
A cikin injin murhu mai juyawa na titanium dioxide, ta hanyar sarrafa girman barbashi na coke ɗin kayan masarufi (D50 = 12 mm, PDI = 1.6), daidaitaccen karkacewar farin samfurin yana raguwa daga 1.2 zuwa 0.5, kuma ƙimar samfurin aji na farko yana ƙaruwa daga 75% zuwa 92%.
III. Cikakken Shawarwari Kan Ingantawa
Manufofin Sarrafa Girman Barbashi:
- D50: 8-15 mm (wanda za'a iya daidaitawa bisa ga halayen kayan);
- PDI: <1.5;
- Ƙaramin ƙwayar cuta (<0.5 mm): <8%.
Dabarun Daidaita Tsarin Aiki:
- Dauki matakai masu yawa na murkushewa da tantancewa don tabbatar da rarraba girman barbashi mai yawa;
- Yi maganin da aka riga aka yi (misali, briquetting) akan ƙananan ƙwayoyin cuta don rage asarar tashi;
- Inganta girman barbashi bisa ga nau'in murhu (rabo tsakanin tsayi da diamita, saurin juyawa), misali, amfani da barbashi masu kauri a matsayin babban sashi don dogon murhu da kuma ƙara ƙananan barbashi don gajerun murhu.
Sa ido da kuma martani:
- Shigar da na'urorin nazarin girman barbashi ta yanar gizo don sa ido kan rarraba girman barbashi na kayan da ke shiga cikin murhu a ainihin lokaci;
- Haɗa tare da ƙirar yanayin ruwa na lissafi (CFD) na filin zafin jiki a cikin murhun don daidaita sigogin girman barbashi da tsarin calcination cikin sauri.
Lokacin Saƙo: Afrilu-16-2026