1. Ƙaddamar da diamita na tattalin arzikin ma'adanin samun iska
1.1 Kudin siyan bututun iskar ma'adinai
Yayin da diamita na bututun iskar ma'adinan ya karu, kayan da ake buƙata suma suna karuwa, don haka farashin siyan ma'adinan ma'adinai shima yana ƙaruwa.Bisa kididdigar kididdigar farashin da kamfanin kera bututun iskar ma’adinan ya bayar, farashin bututun iskar ma’adinai da diamita na bututun samun iskar ma’adinan suna layi ne kamar haka:
C1 = (a + bd) L( 1)
Ina,C1– siyan kudin na bututun samun iska, CNY; a- ƙarin farashin bututun iskar iska ta kowane tsayin naúrar, CNY / m;b- daidaitaccen farashi na tsawon naúrar da wani diamita na bututun samun iska na ma'adinai;d- diamita na ma'adinan samun iska, m;L– Tsawon siyan ma'adinan iskar shaka, m.
1.2 Ma'adinai samun iska bututu samun iska
1.2.1 Binciken sigogi na iska na gida
Juriyar iskar bututun iskar ma'adinan ya haɗa da juriyar juriyar iskaRfvna iskar iskar ma'adinan da kuma juriyar iska ta gidaRev, Inda juriyar iska ta gidaRevya haɗa da juriya na haɗin gwiwaRjo, da gwiwar hannu juriyaRbeda ma'adinai samun iska bututu kanti juriya iskaRou(nau'in latsa-in) ko juriyar iska mai shigaRin(nau'in cirewa).
Jimlar juriyar iskar bututun iskar iskar ma'adanan shine:
(2)
Jimlar juriyar iskar iskar iskar iskar ma'adanan ita ce:
(3)
Inda:
Inda:
L- tsawon ma'adinan iskar gas, m.
d- diamita na bututun iskar ma'adanan, m.
s- yanki na giciye na bututun iskar ma'adinai, m2.
α- Haɓaka juriya na juriya na bututun samun iska nawa, N·s2/m4.A roughness na ciki bango na karfe samun iska bututu ne wajen guda, don haka daαƙimar tana da alaƙa kawai da diamita.Matsakaicin juriya na juriya na duka magudanar ruwa masu sassauƙa da na'urorin samun iska mai sassauƙa tare da ƙaƙƙarfan zobba suna da alaƙa da matsin iska.
ξjo– Matsakaicin juriya na gida na haɗin gwiwar bututun iskar ma'adinai, mara nauyi.Lokacin da akwainhaɗin gwiwa a cikin dukan tsawon ma'adanin samun iska, ana ƙididdige jimlar juriyar juriya na gida bisa gabajo.
n- adadin haɗin gwiwa na ma'adanin samun iska.
ξbs– juriya na gida a jujjuya bututun iskar ma'adanan.
ξou– coefficient na gida juriya a kanti na na'urar samun iska duct, daukaξou= 1.
ξin– coefficient na gida juriya a mashigar da ma'adanin samun iska duct,ξin= 0.1 lokacin da mashigar ta kasance gaba ɗaya, kumaξin= 0.5 - 0.6 lokacin da ba a zagaye mashigar a kusurwar dama.
ρ- yawan iska.
A cikin iskar gida, ana iya ƙididdige jimlar juriyar iskar bututun iskar ma'adinan bisa jimillar juriyar juriyar iska.An yi imani da cewa jimlar juriyar iska ta gida na haɗin gwiwa na bututun iskar ma'adinai, juriyar juriya na gida na juyawa, da juriya na iska na kanti (nau'in latsawa) ko juriya na iska (nau'in cirewa) na bututun iskar ma'adinan kusan kashi 20% na jimlar juriyar juriyar iskar ma'adinan.Jimlar juriyar iskar iskar ma'adinan ita ce:
(4)
Dangane da wallafe-wallafen, ana iya ɗaukar ƙimar ƙimar juriya mai juriya α na fan duct ɗin a matsayin dindindin.Theαza a iya zaɓar ƙimar ƙarfe na bututun iska bisa ga Table 1;Theαƙimar JZK jerin FRP za a iya zaɓar bututun samun iska bisa ga Table 2;Matsakaicin juriya na juriya na bututun samun iska mai sassauƙa da bututun samun iska mai sassauƙa tare da tsayayyen kwarangwal yana da alaƙa da matsa lamba na iska akan bango, madaidaicin juriya na juriya.αAna iya zaɓar ƙimar madaidaicin bututun iska bisa ga Table 3.
Tebura 1 Matsakaicin juriya na juriya na bututun iskar ƙarfe
| Diamita (mm) | 200 | 300 | 400 | 500 | 600 | 800 |
| α× 104/(N·s2·m-4 ) | 49 | 44.1 | 39.2 | 34.3 | 29.4 | 24.5 |
Tebura 2 Ƙwararren juriya na juriyar juriya na jigon jijiya ta FRP jerin JZK
| Nau'in bututun ruwa | JZK-800-42 | Saukewa: JZK-800-50 | Saukewa: JZK-700-36 |
| α× 104/(N·s2·m-4) | 19.6-21.6 | 19.6-21.6 | 19.6-21.6 |
Tebur na 3 Ƙididdiga na juriya na juriya na bututun samun iska mai sassauƙa
| Diamita (mm) | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 |
| α× 104/N ·s2·m-4 | 53 | 49 | 45 | 41 | 38 | 32 | 30 | 29 |
A ci gaba…
Lokacin aikawa: Jul-07-2022
