Iindlela zoNyango lwe-Electroplating Cyanide Exhaust Gas

intshayelelo

Kwi umbane ishishini, iicyanides zisetyenziswa ngokubanzi njengezongezo ze-electroplating ezibalulekileyo. Bangakwazi ukuphucula kakhulu umgangatho kunye nokusebenza kakuhle kwee-electroplating layers. Nangona kunjalo, ngexesha lenkqubo ye-electroplating, i-cyanide-i-exhaust gas equlethwe, equlethe izinto ezinobuthi kakhulu ezifana ne-hydrogen cyanide (HCN). Oku kubangela ingozi enkulu kwindalo nakwimpilo yabantu. Ngoko ke, unyango olusebenzayo lwe-electroplating cyanide exhaust igesi ibaluleke kakhulu.

Imithombo ye-Electroplating Cyanide Exhaust Gas

1. Iitanki zoMbane: Ngexesha le-electroplating, ngenxa ye-volatilization ye-electrolyte kunye negesi eyenziwa yi-electrolytic reaction, i-cyanide-containing exhaust gas ikhutshwa. Ngokomzekelo, kwi-cyanide electroplating yegolide kunye nesilivere, i-cyanide compounds kwisisombululo se-plating iya kuguqa phantsi kwesenzo sokushisa kunye nombane.

2. Iinkqubo zokucoca: Emva kwe-electroplating, xa i-workpieces ihlanjululwa kunye nezisombululo zokucoca eziqulethe IiCyanides, inani elincinci le-cyanides liya kuguquguquka. Nangona ukuxinwa kwe-cyanides kwisisombululo sokucoca kuphantsi, ukuqokelela kwexesha elide kunye nokuguquguquka kunokubangela iingxaki zokungcola.

3. Unyango lwamanzi amdaka: Ukuba unyango lwamanzi amdaka lwe-electroplating alufanelekanga, igesi yecyanide inokubaleka. Kwinkqubo yokunyanga amanzi amdaka aqukethe i-cyanide, ukuba iimeko zokusabela azilawulwa kakuhle, ukubola kwe-cyanides kunokuvelisa igesi yeHCN kwaye ingene emoyeni.

4. Izixhobo eziNcedisayo: Izixhobo ezifana neenkqubo zokungenisa umoya kunye nezixhobo zokufudumeza nazo zinokuvelisa umkhondo wegesi yokuphuma ngexesha lokusebenza. Nangona isixa sincinci, kuthathelwa ingqalelo ubutyhefu obuphezulu be-cyanides, ayinakuhoywa.

Iimpawu ze-Electroplating Cyanide Exhaust Gas

1. Ubuthi obuphezulu: Iikhompawundi ze-cyanide, ngakumbi i-HCN, ziyityhefu kakhulu. Kwanakwiindawo eziphantsi kakhulu, zinokubangela ingozi kumzimba womntu. Ukuphefumla igesi ephumayo ene-cyanide kunokukhokelela kwiimpawu ezinjengentloko, isiyezi, ukuphefumula okufutshane, kwaye kwiimeko ezinzima, kunokubeka ubomi esichengeni.

2. Ukugxila okuPhantsi kodwa isiphumo esongezelekayo: Ngokuqhelekileyo, ukuxinwa kwe-electroplating cyanide exhaust gas kuncinci, kodwa ngenxa yesizukulwana esiqhubekayo ngexesha lenkqubo ye-electroplating, ukuba ayiphathwanga kakuhle, umphumo wokunyuka uya kubangela ukungcola kwexesha elide kwindalo.

Inkqubo yoNyango lwe-Electroplating Cyanide Exhaust Gas

1. I-Exhaust Gas Collection

• Faka iihoods zokuqokelela igesi okanye ezinye izixhobo zokuqokelela kwiindawo zokukhupha igesi. Ezi zixhobo zokuqokelela kufuneka zenziwe ngokuhambelana nenkqubo ethile yokuvelisa kunye noyilo ukuze kuqinisekiswe ukuba igesi yokukhupha ingaqokelelwa ngokufanelekileyo. Ngokomzekelo, kwi-workshop enkulu ye-electroplating, indibaniselwano yee-hoods zendawo yokuqokelela kunye neenkqubo zokungenisa umoya jikelele zingasetyenziselwa ukubamba ngokubanzi igesi yokukhupha i-cyanide.

2. Utyando

• Ukususwa kothuli: Sebenzisa izixhobo zokususa uthuli ezifana nezihluzi zengxowa okanye i-electrostatic precipitators ukususa i-particulate matter kwi-exhaust gas. I-particulate matter inokuthwala i-cyanide compounds ebusweni bayo, kwaye ukuyisusa kwangaphambili kunokuphucula ukusebenza kakuhle kwonyango olulandelayo kunye nokuthintela umonakalo kwizixhobo zonyango.

• I-Dewaxing kunye nokususwa kokufuma: Ekubeni irhasi yokukhupha inokuba nomphunga wamanzi kunye nenkungu yeoli, sebenzisa izixhobo ezitshabalalisayo kunye ne-dehumidifiers ukususa ezi zinto. Umphunga wamanzi unokuchaphazela ukusebenza kakuhle kweenkqubo zonyango ezilandelayo, kunye nenkungu yeoli inokuba nefuthe ekusebenzeni kwe-catalysts kunye ne-absorbents.

3. Inkqubo engundoqo yoNyango

• Indlela yokufunxa imichiza

• Siseko: Sebenzisa izisombululo ze-alkaline ezifana ne-sodium hydroxide (NaOH) okanye i-calcium hydroxide (Ca (OH) ₂) njenge-absorbents. I-cyanide kwi-exhaust gas isabela kunye nesisombululo se-alkaline ukwenza iityuwa ze-cyanide. Umzekelo, i-HCN iphendula kunye ne-NaOH ukwenza Isodium cyanide (NaCN), enokususa ngokufanelekileyo i-cyanide kwi-exhaust gas.

• inkqubo: I-exhaust gas ingena kwinqaba yokufunxa iikhemikhali, apho idibanisa nesisombululo se-alkali esitshisiweyo ngendlela ephikisanayo. Inqaba yokufunxa idla ngokuzaliswa ngezinto zokupakisha ukunyusa indawo yoqhagamshelwano phakathi kwegesi kunye nolwelo, ukuphucula ukusebenza kakuhle kokufunxa.

• Indlela ye-Catalytic Oxidation

• Siseko: Phantsi kwesenzo se-catalyst, i-cyanide kwi-exhaust gas iyanyibilikiswa ibe yi-non-toxic ICarbon i-dioxide (CO₂), amanzi (H₂O), kunye ne-nitrogen (N₂). Ii-catalysts eziqhelekileyo ziquka ii-catalysts zesinyithi ezixabisekileyo (ezifana neplatinum, i-palladium) kunye nee-catalysts zesinyithi ze-oxide (ezifana ne-titanium dioxide, i-vanadium pentoxide).

• inkqubo: Emva kokudlula kwi-tower absorption tower, igesi yokukhupha ingena kwisixhobo se-oxidation catalytic. Isixhobo sixhotyiswe nge-catalyst bed, kwaye i-exhaust gas idlula kwi-catalyst bed kwiqondo elithile lokushisa kunye nesantya sendawo. I-catalyst ikhuthaza ukusabela kwe-oxidation ye-cyanide, ukunciphisa ubuthi bayo.

• Indlela yokufunxa emanzi

• Siseko: Sebenzisa inqaba yokufunxa emanzi ukutshiza into efunxa ulwelo ukufunxa icyanide kwirhasi yokukhupha. I-absorbent ingaba sisisombululo esikhethekileyo sekhemikhali esenziwe ngokweempawu ze-cyanide.

• inkqubo: Igesi yokukhupha ingena kwinqaba yokufunxa emanzi ukusuka ezantsi, kwaye i-absorbent ifafazwe ukusuka phezulu. Ezi zimbini zidibanisa kwinqaba, kwaye i-cyanide kwi-exhaust gas ifunnwe yi-absorbent. Ulwelo olufunxiweyo luphathwa ngokwahlukeneyo ukususa icyanide.

• Indlela yoNyango lwebhayoloji

• Siseko: Ezinye iintsholongwane ziyakwazi ukubola icyanide. Sebenzisa ezi microorganisms ukuthobisa i-cyanide kwi-exhaust gas kwindawo efanelekileyo.

• inkqubo: Irhasi ephumayo iqala ifumiswe kwaye emva koko ingene kwisixhobo sonyango lwebhayoloji. Isixhobo siqulethe i-biofilm carrier apho i-microorganisms ifakwe kuyo. I-Cyanide kwi-exhaust gas ibhengezwa yi-biofilm kwaye ihlanjululwe yi-microorganisms kwizinto ezingenayo inetyhefu. Nangona kunjalo, le ndlela idinga ulawulo olungqongqo lweemeko zokusingqongileyo ezifana nobushushu, i-pH, kunye nokubonelela ngezondlo zokuqinisekisa ukukhula okuqhelekileyo kunye nomsebenzi we-microorganisms.

4. Ukubeka iliso kunye nokukhutshwa

• Faka izixhobo zokubeka iliso kwi-intanethi kwindawo yokukhupha igesi yokukhupha ukuze uhlale ubeka iliso kugxininiso lwe-cyanide kunye nolunye ungcoliseko kwirhasi yokukhupha. Kuphela xa igesi yokukhupha idibana nemigangatho yelizwe kunye neyendawo yokukhupha inokuthi ikhutshwe emoyeni. Idatha yokubeka iliso kufuneka irekhodwe kwaye ixelwe rhoqo ukuqinisekisa ukuthotyelwa kokusingqongileyo.

Into yokuphonononga

Ishishini elithile le-electroplating libe neengxaki ezinzulu ngongcoliseko lwegesi ephuma kwicyanide ngexesha lenkqubo yokuvelisa. Ukusombulula le ngxaki, ishishini lamkele la manyathelo onyango alandelayo:

1. I-Exhaust Gas Collection: Kufakwe i-hood ephezulu yokuqokelela igesi ngaphezu kwetanki ye-electroplating ukuqinisekisa ukuba ngaphezu kwe-95% yegesi yokukhupha iqokelelwe.

2. Utyando: Misela inkqubo yokususa uthuli kunye ne-dehumidification ukuze ususe ngokufanelekileyo i-particulate matter kunye nomphunga wamanzi kwi-exhaust gas.

3. Unyango oluphambili: Yamkelwe indibaniselwano yokufunxa imichiza kunye neenkqubo ze-catalytic oxidation. Okokuqala, igesi yokukhupha yangena kwinqaba yokufunxa imichiza egcwele isisombululo se-NaOH sokususa ininzi ye-cyanide. Emva koko, i-cyanide eseleyo yaphinda yafakwa i-oxid kwaye yabola kwisixhobo se-catalytic oxidation.

4. esweni: Kufakwe inkqubo yokubeka iliso kwi-intanethi ukuqinisekisa ukuba igesi yokuphuma ecociweyo iyahlangabezana nemigangatho yokukhutshwa kwelizwe.

Emva kokuphunyezwa kwala manyathelo, i-cyanide concentration kwi-exhaust gas yeshishini yehla kakhulu, ukunciphisa ngokufanelekileyo ukungcoliseka kwendalo kunye nokukhusela impilo yabasebenzi.

isiphelo

Unyango lwe-electroplating cyanide exhaust gas ngumlinganiselo obalulekileyo wokukhusela okusingqongileyo kunye nempilo yabantu kwishishini le-electroplating. Ngokwamkela ukuqokelela kwegesi efanelekileyo yokukhupha, ukunyangwa kwangaphambili, unyango oluphambili, kunye nokubeka iliso kunye nokukhutshwa kwamanyathelo, ukuxinwa kwe-cyanide kwi-gas yokukhupha igesi kunokunciphisa ngokufanelekileyo ukuhlangabezana neemfuno zokukhuselwa kwendalo. Kwixesha elizayo, ngokuphuculwa okuqhubekayo kweemfuno zokusingqongileyo, amashishini e-electroplating kufuneka aqhubekisele phambili kwaye ahlaziye iinkqubo zokunyanga igesi yokukhupha ukuphumeza uphuhliso oluzinzileyo.