
1. Introduction
Mu makampani opanga golide, kuchotsedwa kwa Cyanide ndi njira yomwe imagwiritsidwa ntchito kwambiri pochotsa golide kuchokera ku miyala. Komabe, kugwiritsa ntchito Sodium cyanide , mankhwala oopsa kwambiri, sikuti kumangobweretsa zoopsa zachilengedwe komanso chitetezo komanso kumabweretsa ndalama zambiri. Kuchepetsa kugwiritsa ntchito Sodium Cyanide mu cyanide Zomera za kaboni zakhala ntchito yofunika kwambiri kuti pakhale bwino zachuma komanso kusamala chilengedwe cha njira yopangira. Nkhaniyi ikupereka zotsatira za mayeso opanga omwe cholinga chake ndi kuchepetsa kugwiritsa ntchito sodium cyanide mu chomera cha kaboni mu kaboni.
2. Mbiri ya Vutoli
Kugwiritsa ntchito kwambiri sodium cyanide muzomera za cyanide carbon-in-pulp kumachitika makamaka chifukwa cha zinthu zingapo. Choyamba, kupezeka kwa zonyansa zosiyanasiyana mu ore, monga mkuwa, zinki, ndi chitsulo, zimatha kuchitapo kanthu ndi cyanide, zomwe zimapangitsa kuti munthu azimwa sodium cyanide yambiri. Kachiwiri, kuwongolera kosayenera kwa mikhalidwe ya leaching, monga mtengo wa pH, kutentha, ndi kuchuluka kwa mpweya, kungayambitsenso kuchuluka kwa sodium cyanide. Kuonjezera apo, kusagwira ntchito kwa zipangizo zopangira leaching ndi njira yobwezeretsanso ya cyanide solution ikhoza kukulitsa vutoli. Choncho, m'pofunika kuchita kafukufuku wozama ndi kufufuza kuti mupeze njira zothandizira kuchepetsa kumwa kwa sodium cyanide.
3. Njira Zofufuzira
3.1 Makhalidwe a Ore
Gawo loyamba la kafukufukuyu linali kulongosola mwatsatanetsatane za miyala yomwe imagwiritsidwa ntchito mu chomera cha cyanide carbon-in-pulp. Kapangidwe kakemidwe, mineralogy, ndi kukula kwa tinthu tating'onoting'ono ta ore adawunikidwa. Izi zinali zofunika kwambiri kuti timvetsetse momwe angagwiritsire ntchito zida za ore ndi sodium cyanide komanso kupanga njira zoyenera zochepetsera kumwa kwa sodium cyanide.
3.2 Kukhathamiritsa kwa Leaching Conditions
Zoyeserera zingapo zidachitika kuti ziwongolere mikhalidwe ya leaching. Zotsatira za mtengo wa pH, kutentha, kuchuluka kwa mpweya, ndi nthawi ya leaching pakugwiritsa ntchito sodium cyanide ndi kuchuluka kwa golide kufufuzidwa. Kuphatikizika kosiyana kwa magawowa kunayesedwa, ndipo mikhalidwe yabwino idatsimikiziridwa kudzera pakuwunika kokwanira.
3.3 Kusamalidwa kwa Miyala
Pofuna kuchepetsa kuopsa kwa zonyansa mu ore pakumwa sodium cyanide, njira zodzitetezera zidafufuzidwa. Njira ziwiri zazikulu zopangira chithandizo, zomwe ndi kuyandama ndi kuwotcha, zidayesedwa. Njira yoyandamayo inkafuna kulekanitsa mchere wamtengo wapatali kuchokera ku zonyansa, pamene njira yowotcha inkagwiritsidwa ntchito kutulutsa mchere wa sulfide ndikuchotsa zina zomwe zingawononge cyanide.
3.4 Kukweza kwa Cyanide Recycling System
Kuchita bwino kwa cyanide recycling system kumakhudza mwachindunji kumwa kwa sodium cyanide. Mu kafukufukuyu, kusintha kunapangidwa ku makina obwezeretsanso cyanide. Ukadaulo watsopano ndi zida zidayambitsidwa kuti zithandizire kuchira kwa cyanide kuchokera ku michira ndi yankho la leaching. Kuphatikiza apo, mtundu wa yankho la cyanide wobwezerezedwanso udawunikidwa mosamala ndikusinthidwa kuti zitsimikizire kuti zikugwiritsidwanso ntchito moyenera.
4. Zotsatira ndi zokambirana
4.1 Zotsatira za Leaching Condition Optimization
The kukhathamiritsa wa leaching mikhalidwe akwaniritsa chidwi kwambiri. Mwa kusintha pH mtengo wamtundu woyenera (kuzungulira 10 - 11), kuonjezera kutentha kwa 30 - 35 ° C, ndi kulamulira mlingo wa aeration pa 0.5 - 1.0 L / min, kugwiritsa ntchito sodium cyanide kunachepetsedwa kwambiri. Panthawi imodzimodziyo, mlingo wochotsa golide unakhalabe wolimba kapena unawonjezeka pang'ono. Zotsatirazi zikuwonetsa kuti kuwongolera koyenera kwa mikhalidwe ya leaching kumatha kulimbikitsa bwino zomwe zimachitika pakati pa golide ndi cyanide ndikuchepetsa kumwa kosafunikira kwa sodium cyanide.
4.2 Zotsatira za Ore Pretreatment
Njira zopangira ore zikuwonetsanso zabwino. Kuwongolera koyandamako kunalekanitsa bwino zonyansa zina, monga mchere wamkuwa ndi zinki, ndi miyala. Zotsatira zake, kumwa kwa sodium cyanide panthawi yoyeserera kunachepetsedwa ndi 20%. Kuwotcha, ngakhale kuti kunali kwamphamvu kwambiri, kunalinso kothandiza kwambiri. Pambuyo pakuwotcha, mchere wa sulfide mu ore udatulutsidwa, ndipo kumwa kwa sodium cyanide kunatsika ndi pafupifupi 30%. Komabe, kusankha kwa pretreatment njira kuyenera kutengera mawonekedwe enieni a miyala yamtengo wapatali komanso malingaliro onse azachuma ndi chilengedwe cha mbewuyo.
4.3 Kukweza kwa Cyanide Recycling System
Kuwongolera kwa njira yobwezeretsanso cyanide kunachulukitsa kwambiri kuchira kwa cyanide. Ukadaulo ndi zida zatsopanozi zidathandizira kuti cyanide ichuluke kuchokera ku 60% yoyambira mpaka 80%, ndipo mtundu wa cyanide wobwezeretsanso udawongoleredwa. Kuwongolera kumeneku sikunangochepetsa kuchuluka kwa sodium cyanide yatsopano yomwe ikufunika kuti ipangidwe komanso kumachepetsa mphamvu ya chilengedwe ya kutulutsa kwa cyanide.
5. Zotsatira
Kupyolera muyeso yopanga izi, njira zingapo zogwira mtima zidapezeka zochepetsera kugwiritsa ntchito sodium cyanide mu chomera cha cyanide carbon-in-pulp. Kuwongolera mikhalidwe ya leaching, kuwongolera mwala, komanso kukonza makina obwezeretsanso cyanide zonse zingathandize kuchepetsa kugwiritsa ntchito sodium cyanide. Njira zimenezi sizingachepetse ndalama zopangira zinthu komanso kupititsa patsogolo ntchito zachilengedwe za zomera. Komabe, ziyenera kudziwidwa kuti kukhazikitsidwa kwa miyesoyi kuyenera kuwunikiridwa mosamalitsa malinga ndi momwe zinthu zilili pa chomera chilichonse, poganizira zinthu monga zida za ore, kuchuluka kwa kupanga, komanso kuthekera kwachuma. Kafukufuku wam'tsogolo angayang'ane kupititsa patsogolo luso la njirazi ndikuwunika matekinoloje atsopano kuti akwaniritse kuchepetsa kwambiri kugwiritsa ntchito sodium cyanide mu cyanide carbon-in-pulp process.
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