Bisa ga ma'anar da ke cikin littafin, sieving tsari ne na tantancewa inda ake wuce cakuda mai yawa wanda ke da girman barbashi daban-daban ta hanyar raga mai layi ɗaya ko mai layi da yawa, kuma girman barbashin ya kasu kashi biyu ko fiye da samfuran granule daban-daban. Ana kiran wucewar abu ta saman allo da sieving. Injin da aka sanya masa fuskar allo don tantance abu ana kiransa injin tantancewa.

Ana amfani da injinan tantancewa sosai a fannin aikin ƙarfe, hakar ma'adinai, kwal, sinadarai, man fetur, wutar lantarki, sufuri, gini, abinci, magunguna da kuma kare muhalli. Yana iya rarrabawa, bushewa, cire laka da kuma rage yawan kayan da ba su da tsabta.

1. Masana'antar ƙarfe:
A masana'antar ƙarfe, lokacin da ake narkewar tanderun fashewa, shigar da kayan foda da yawa zai shafi shigar iskar gas yayin aikin narkewar tanderun fashewa kuma yana haifar da manyan haɗurra. Saboda wannan dalili, dole ne a tace kayan da aka samar da man fetur da aka ciyar da su a cikin tanderun fashewa kafin su zama foda. Ana raba tarar da aka samu daga cakuda.

2. Masana'antar hakar ma'adinai:
A cikin tsarin niƙawa da tantancewa na ma'adanai na ƙarfe da waɗanda ba na ƙarfe ba, ana amfani da allon girgiza mai zagaye don tantancewa, duba da kuma tantance ma'adinan kafin a fara amfani da shi. Ana amfani da sirinji mai kyau da sirinji mai girgiza maimakon sieve mai juyawa biyu don rarraba samfuran niƙa bisa ga girman barbashi don inganta matakin tattarawa. Ana amfani da allon girgiza mai yawan mita don rarraba wutsiyoyin injin don inganta saurin dawo da mai. Allon girgiza mai takamaiman bayanai daban-daban ya zama kayan aiki mai mahimmanci ga injin miya na ma'adinan.

3. Masana'antar kwal:
A cikin masana'antar shirya kwal, ana amfani da gawayi daban-daban masu girgiza don cirewa da kuma tantancewa a lokuta daban-daban don samun gawayi tare da amfani daban-daban da girman barbashi daban-daban: ana amfani da allon layi da na girgiza don bushewa da kuma rage haɗin kwal mai tsabta da gawayi na ƙarshe; Ana amfani da allon cire ruwa mai girgiza mai centrifugal don cire ruwan kwal mai laushi da gawayi mai laushi; tace igiya, allon shakatawa, allon birgima da sieve mai juyawa na iya magance matsalar toshe ramin kwal mai kyau tare da yawan ruwa na 7% zuwa 14%. Kuma yana iya inganta ingancin tantancewa.

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