Haɗin Zinare: Matakai daga Ore zuwa Ingot a cikin Leaching Carbon

Ana ƙara Carbon Mai Aiki a cikin tankin leaching, wanda ke ba da damar faruwar leaching da shaƙewa a lokaci guda, wato leaching yayin shaƙewa, wanda ake kira hanyar carbon-in-leach (CIL). An haɓaka shi bisa ga hanyar carbon-in-pulp, yana ba da fa'idodin rage adadin tankunan leaching da rage kwararar aiki. Saboda haka, yana iya rage jarin gina jari da farashin samarwa. Leaching da shaƙewa a lokaci guda yana inganta yanayin rushewar zinare, fa CIL yana haifar da leaching da shaƙewa na zinariya. Hanyar carbon-in-leach galibi ta ƙunshi ayyuka kamar Shirya Leaching Raw Materials , Leaching da countercurrent carbon adsorption, desorption of gold-loaded carbon, Electrowinning and Electrolysis , smelting and ingot production, da kuma sake farfaɗo da carbon.

01 Shirye-shiryen Kayan Ganye Danye

Lokacin da aka karɓi tsarin hakar gwal na carbon-in-leach, shirye-shiryen leaching albarkatun ƙasa sun haɗa da murkushe jiki da rarrabuwa. Yawanci, a cikin tsarin hakar gwal-in-leach na carbon-in-leach, ƙarancin ambaliya daga rarrabuwar niƙa yawanci kamar 85 - 95% yana wucewa ta -200 raga.

02 Aiki Cire tarkace

Ƙwayoyin itace da busassun kayan da ke cikin ɓawon na iya haifar da toshewar bututun da allon kariya. Bugu da ƙari, suna yawan shanye zinare a cikin ɓawon kuma su haɗa shi da sinadarin carbon mai yawa. Saboda haka, dole ne a cire su kafin a cire su. Idan ya cancanta, ana buƙatar ƙara kauri na ɓawon da kuma ƙara masu hana sikelin. Mai hana sikelin kuma zai iya rage girman da ke kan saman Carbon da aka kunna da allon. Gabaɗaya, ana yin ayyukan cire tarkace guda biyu a cikin tsarin niƙa, bi da bi a lokacin da aka cika rarrabuwar mataki na farko - da na biyu - na niƙa. Kayan aikin cire tarkace galibi suna amfani da allon girgiza mai matsakaicin mita. A aikin cire tarkace na farko, ana iya amfani da allon juyawa da allon silinda. Girman ramin allo na allon cire tarkace ya kamata ya zama ƙarami gwargwadon iko yayin da yake tabbatar da cewa babu ambaliya a saman allon.

03 Pre-leaching Thicking Operation

Lokacin da yawan ambaliya na rarrabuwar nika shine 18 - 22%, bai dace da leaching kai tsaye ba, kuma dole ne a aiwatar da kauri. Yana da kyau a yi amfani da kauri mai inganci tare da ƙaramin sawun ƙafa da haɓakar kauri mai girma.

04 Haɗa Leaching da Adadin Carbon da ke gaba

Hanyar carbon-in-leach tana da alaƙa da ci gaban ayyukan leaching da shaƙewa na zinare a lokaci guda. Yawan matakan leaching gabaɗaya 6-10 ne (ƙayyadewa da adadin tankunan leaching ana ƙayyade su ne bisa ga ƙarfin sarrafa mai tattarawa). Tunda an ƙara Sodium Cyanide zuwa Tanki Mai Lamba 1, adadin zinaren da aka leaching yana da ƙanƙanta. Don haka, yawancin tsire-tsire masu carbon-in-leach suna amfani da Tanki Mai Lamba 1 a matsayin tankin leaching kafin leaching, kuma tankunan da ke biyo baya a matsayin tankunan leaching da shaƙewa. Kowace tanki mai leaching da shaƙewa tana da allon raba carbon don raba carbon da ɓangaren litattafan. ɓangaren litattafan suna gudana gaba, kuma carbon da aka kunna yana gudana baya, wato, ɓangaren litattafan da carbon da aka kunna suna cikin shaƙewa ta hanyar hana current. Ana ƙara sabon carbon da aka kunna daga tankin leaching da shaƙewa na ƙarshe, kuma carbon da aka ɗora da zinariya ana fitar da shi daga tankin leaching da shaƙewa na farko. Carbon da aka kunna ya zama carbon da aka ɗora da zinariya ta hanyar shaƙewa zinariya a cikin ɓangaren litattafan ... Bayan an kammala shaƙar, ɓangaren litattafan da ke ɗauke da sinadarin carbon mai nauyin zinare ana ciyar da shi zuwa allon cire sinadarin carbon ta hanyar ɗaga iska. Allon cire sinadarin carbon yana raba sinadarin carbon da aka kunna da ɓangaren litattafan. Bayan an tantance shi da kurkura, ana aika shi zuwa aikin cire sinadarin da aka kunna da kuma aikin cire sinadarin electrowinning. Bayan an shaƙar ta wannan hanyar, sinadarin sinadarin na zinariya yawanci shine 0.01 - 0.03g/m³. Gabaɗaya, sinadarin carbon da aka kunna da aka fi amfani da shi galibi shine sinadarin kwakwa da aka kunna a harsashi, wanda ke da ƙananan ramuka, aiki mai yawa, juriyar lalacewa, da sabuntawa. Yana da kyakkyawan aikin shaƙar da gogewa - ƙarfin juriya, yana iya ƙara yawan shaƙar da kashi 30%, yana inganta yawan dawo da zinare a cikin ƙarfe masu alaƙa, kuma yana ƙara fa'idodin tattalin arziki da ingancin samarwa sosai.

05 Rushewar Zinariya - Carbon da aka ɗora, Electrowinning da Electrolysis

An ɗaga gwal ɗin da aka ɗora nauyin carbon da ɓangaren litattafan almara zuwa carbon - allon raba allo (gabaɗaya allon girgiza kai tsaye) ta hanyar carbon - cire famfo ko ɗaga iska. Ana wanke su da ruwa mai tsabta akan allon don raba carbon da ɓangaren litattafan almara. Karbon da aka ɗora da zinari ya shiga cikin carbon - tankin ajiya, kuma ɓangaren litattafan almara da ruwan kurkura sun shiga cikin tankin talla na farko. Akwai hanyoyi da yawa na lalatawa don zinare - ɗorawa da carbon. A halin yanzu, babban - zafin jiki da kuma high - matsa lamba na desorption hanya yawanci amfani. Wato, anion wanda aka sauƙaƙe ta hanyar kunna carbon ana ƙara shi zuwa tsarin lalata don kawar da Au(CN) Ruwa mai daraja da aka samu ta hanyar lalata gwal - carbon da aka ɗora ana dawo da shi ta hanyar ionization don samun gwal mai ƙarfi.