Amfani da tungsten a cikin gida na kasar Sin ya kasance da kwanciyar hankali a kusan tan 10,000 a kowace shekara.A cewar rahotanni, yawan amfani da tungsten a kasar Sin ya kai ton 9,200, ton 9,400, da ton 9,500 a tsakanin shekarun 1994-1996, kuma ana hasashen yawan amfani da tungsten a kasar Sin zai kai ton 11,500 a shekarar 2000. Tun daga shekarun 1980, tsarin amfani da tungsten a kasar Sin ya kai ton 11,500. China ta kasance tana canzawa a hankali.Kididdiga ta nuna cewa daga shekarar 1980 zuwa 1985, tsarin amfani da tungsten don yin karfe ya kai kashi 61% na yawan amfanin da aka yi amfani da shi, wanda ya kai kaso mafi girma;Daga shekarar 1986 zuwa 1990, yawan tungsten da ake amfani da su wajen yin karfe ya ragu zuwa kashi 48 cikin dari, yayin da adadin tungsten da ake amfani da shi a cikin siminti carbide ya karu zuwa kashi 28%.Daga 1991 zuwa 1995, yayin da fitar da siminti carbide ya yi tashin gwauron zabi, adadin tungsten da ake amfani da shi a cikin simintin carbide ya zarce na tungsten da ake amfani da shi wajen yin karfe, inda ya kusan kusan kashi 50 cikin dari na yawan amfani da tungsten na cikin gida, yayin da adadin tungsten da ake amfani da shi wajen yin karfe ya ragu zuwa kusan. 40%.
A bayyane yake cewa canjin tsarin amfani da tungsten a kasar Sin yana da alaƙa kai tsaye da samar da simintin carbide.Don haka, menene yanayin samar da siminti na siminti na kasar Sin?Halin halin yanzu na samar da carbide a kasar Sin.
China tasiminti carbideTun a tsakiyar shekarun 1950 ne masana'antu suka fara aiki, kuma ko da yake an kafa tsarin masana'antu bayan shekaru talatin fiye da na kasashen da suka ci gaba na gabashi da yammacin duniya, saurin bunkasuwarta da kuma girman yadda ake samar da shi sun kasance abin ban mamaki ga duniya.Musamman a shekarun 1990, a karkashin sake fasalin kasa da bude kofa da kuma tattalin arziki mai dogaro da kasuwa, samar da siminti na siminti yana karuwa sosai.A halin yanzu, akwai masana'antun siminti na siminti 150 a cikin kasar Sin, tare da jimillar iya aiki na ton 9,000-10,000 a kowace shekara.Jimlar yawan samarwa na shekara-shekara kusan tan 7000-7500 ne, wanda ke lissafin kashi 21% na yawan samarwa na shekara-shekara na duniya, wanda ya fi Amurka, Sweden, CIS da sauran ƙasashe tare da tsarin masana'antar siminti na cimented a farkon samarwa da farkon duniya. .A cikin shirin shekaru biyar na 8, matsakaicin yawan samar da siminti na shekara-shekara a kasar Sin ya kai tan 6528 (abin da aka samar mafi girma a shekara shi ne ton 7540 a shekarar 1994), kuma yawan amfanin da aka yi a shekara ya kai ton 5894 (mafi girman amfani da shekara shekara shi ne tan 6620). .Bisa hasashen da masana suka yi, a cikin shirin shekaru biyar na tara, matsakaicin yawan samar da siminti na Carbide a kowace shekara a kasar Sin zai karu da kashi 6%, wato yawan abin da ake samarwa a shekara zai kai tan 6976.Wasu ƙwararru suna amfani da ma'auni na layi don haɗa ƙarfe da simintin samar da carbide a cikin Sin yayin shirin shekaru biyar na tara.An gudanar da simintin lissafi don ƙididdige alamomi biyu na GDP.
Na uku, sake amfani da sharar gida da sauracarbidea matsayin wata hanya ta karawa karancin albarkatun kasa
Albarkatun ƙasa suna da iyaka, kuma ƙararrawar ƙararrawa ta rasa fa'idar albarkatun tungsten ta kasance tana kara tabarbarewar kunnuwan mu.Dangane da wannan yanayi mai cike da hadari, masana sun tsara hanyoyin da za a bi wajen magance su da kuma hanyoyin magance su.Daga cikin su, hanyar sake amfani da amfani da ragowar tungsten carbide ya zama balagagge, ingantaccen shiri kuma mai amfani.Hanya ce mai mahimmanci don rage farashin samar da carbide a lokacin yawan albarkatun tungsten mai yawa na halitta, kuma muhimmin al'amari don daidaitawa ga rashin albarkatu a yanzu da kuma nan gaba lokacin da albarkatun tungsten na halitta ya zama raguwa.Matsayin cikakken amfani da albarkatun da aka sake fa'ida na ɗaya daga cikin muhimman alamun ci gaban fasaha da bunƙasa tattalin arzikin ƙasa da kasuwanci.A haƙiƙa, ƙasashen da suka ci gaba a Gabas da Yamma sun riga sun haɗa da sake yin amfani da su tare da yin amfani da ragowar abubuwan da suka rage a cikin sharar da ake samarwa.A halin yanzu, sake yin amfani da su da kuma amfani da ragowar siminti na siminti ya kai kashi 30-40% na yawan abin da ake samarwa a shekara.Karfin Tungsten da kasar Sin ke amfani da shi a duk shekara ya kai ton 10,000, idan har za ta iya kai kashi 40 cikin 100 na sake yin amfani da ita, alfanun tattalin arzikinta da ci gaban albarkatun kasa zai yi matukar yawa.Dauki siminti carbide a matsayin misali, jimilar siminti carbide a kasar Sin a shekarar 1994 ya kai tan 7540, bisa kididdigar da aka yi na farfadowar kashi 40%, ba wai kawai za mu iya kwato kusan tan 3000 na karfen tungsten ba, har ma da kusan tan 240 na karfen cobalt. .Dangane da lissafin cinye ton 2 na tungsten maida hankali ga kowane ton 1 na simintin carbide da aka samar, ana iya rage yawan amfani da tungsten da kusan tan 6000.Wannan ko shakka babu zai taka rawa sosai wajen rage karancin kayan aiki.Halin da ake ciki na sake yin amfani da shi da kuma yin amfani da tarkacen carbide a kasar Sin a halin yanzuRagowar carbide mai juzu'i da muke magana a kai a nan ya haɗa da sassa biyu: ɗaya shine samfuran da ba su cancanta ba a cikin tsarin samarwa;ɗayan kuma shine kayan aikin carbide da aka yi amfani da su (magudanar ruwa, kawuna, gyaɗa, da sauransu).
Bisa ga kididdigar da ba ta cika ba, yawan adadinragowar carbideAna samarwa a kasar Sin kusan tan 3500 a kowace shekara.A cewar masana'antun carbide na ƙasashen waje, daga cikin kayan aikin tarkacen carbide da aka yi amfani da su, gabaɗaya magana, 12-25% na abubuwan da ake sakawa na walda za a iya sake yin fa'ida;Kashi 65-70% na tarkacen carbide ya mutu (buga ya mutu, danna mutu, zane ya mutu, da sauransu) ana iya sake yin fa'ida;Kashi 95-97% na abin da aka sanyawa na'ura mai juzu'i za a iya sake yin fa'ida.
Kasar Sin ta fara sake yin fa'ida da amfani da tarkacen carbide a makare.A cikin 1983, adadin sake amfani da shi ya kasance ton 300 kacal, wanda ya kai kashi 8% na abin da aka fitar a wannan shekarar;a 1985, ya karu zuwa fiye da ton 400, wanda ya kai kashi 10% na abin da aka fitar a wannan shekarar.yana lissafin kashi 10% na abin da aka samar a wannan shekarar.A cikin shekaru casa'in, aikin sake yin amfani da su ya sami babban ci gaba.Yanzu akwai masana'antun siminti fiye da 150 a cikin ƙasar, ba kawai ƙananan masana'antu 60 da matsakaitan masana'antu ba ne kawai ke da albarkatun tungsten asali daga albarkatun da aka sake fa'ida, wato, tare da ma'aunin masana'antar siminti na Zhuzhou Cemented Carbide Factory da Kamfanin Zigong Cemented Carbide Limited Liability Company. (Tsohon Kamfanin Zigong Cemented Carbide Factory) ya kuma buɗe layin samar da sharar da aka sake yin fa'ida ta siminti mai siminti.A halin yanzu, adadin sake amfani da kasar ya haura tan 1500, wanda ya kai kusan kashi 20% ko fiye na jimillar adadin siminti na siminti a kasar Sin, kuma yana kusa da matakin kasar Japan.Fasahar sake amfani da ragowar simintin siminti ya cika sosai,?s tsari na hanyar narkewar zinc, hanyar narkewar lantarki da hanyar murƙushewa daidai gwargwado.Tungsten carbide foda da aka sake yin fa'ida (WC) da cobalt foda (Co), waɗanda suke da inganci masu kyau, ana iya amfani da su don kera carbide, lu'u-lu'u na wucin gadi, kayan masana'antu na ƙarfe da sauran samfuran.Akwai ƴan yankuna da aikin sake yin amfani da su ya fi ƙarfin aiki, daga cikinsu akwai: Zhuzhou da Changsha a Hunan;Zigong a Sichuan;Qinghe a lardin Hebei;Jinan a lardin Shandong;Mudanjiang a lardin Heilongjiang, da dai sauransu. Masu kera siminti na siminti a waɗannan yankuna sun sami nasarar sake yin amfani da simintin siminti.
词典
Lokacin aikawa: Mayu-02-2023
