廢舊金(jin)屬回收(shou)公(gong)司簡述廢銅的再生(sheng)技術

含(han)銅物料(liao)的(de)再生利(li)用一般有兩種途徑：

一是冶金熔煉再(zai)生(sheng)，再(zai)生(sheng)銅的(de)生(sheng)產(chan)可以采用火法(fa)冶金工(gong)藝，也可采用濕法(fa)冶金工(gong)藝，目前再(zai)生(sheng)銅生(sheng)產(chan)主要采用火法(fa)工(gong)藝，但濕法(fa)冶金工(gong)藝生(sheng)產(chan)再(zai)生(sheng)銅的(de)應用日益(yi)廣泛

二是含(han)(han)銅(tong)(tong)(tong)(tong)(tong)物(wu)料(liao)(liao)(liao)的(de)(de)直接(jie)(jie)利用。含(han)(han)銅(tong)(tong)(tong)(tong)(tong)物(wu)料(liao)(liao)(liao)的(de)(de)直接(jie)(jie)利用，是指(zhi)含(han)(han)純凈的(de)(de)銅(tong)(tong)(tong)(tong)(tong)物(wu)料(liao)(liao)(liao)不需經過一般雜銅(tong)(tong)(tong)(tong)(tong)生產的(de)(de)氧化(hua)一還原一精煉(lian)等(deng)過程，直接(jie)(jie)熔(rong)煉(lian)為精銅(tong)(tong)(tong)(tong)(tong)錠(ding)和性質相同或相近的(de)(de)銅(tong)(tong)(tong)(tong)(tong)合金。如將黃(huang)銅(tong)(tong)(tong)(tong)(tong)廢料(liao)(liao)(liao)熔(rong)煉(lian)成(cheng)黃(huang)銅(tong)(tong)(tong)(tong)(tong);青銅(tong)(tong)(tong)(tong)(tong)廢料(liao)(liao)(liao)熔(rong)煉(lian)成(cheng)青銅(tong)(tong)(tong)(tong)(tong)，白銅(tong)(tong)(tong)(tong)(tong)廢料(liao)(liao)(liao)熔(rong)煉(lian)成(cheng)白銅(tong)(tong)(tong)(tong)(tong)等(deng)。

此方案具有工藝流(liu)程短(duan)、設備(bei)簡單、金屬回收(shou)(shou)率(lv)高(gao)、能耗(hao)少、成本(ben)低(di)等優點(dian)。因(yin)此工業(ye)發(fa)達(da)國(guo)(guo)家都力(li)求增加(jia)廢(fei)銅(tong)直(zhi)接利(li)(li)(li)用的比例。如日(ri)本(ben)直(zhi)接利(li)(li)(li)用廢(fei)銅(tong)的比例為(wei)(wei)80%，意大(da)利(li)(li)(li)為(wei)(wei)90%，英國(guo)(guo)為(wei)(wei)50%，美國(guo)(guo)為(wei)(wei)60%，之所(suo)以發(fa)達(da)國(guo)(guo)家廢(fei)銅(tong)直(zhi)接利(li)(li)(li)用率(lv)較高(gao)，是因(yin)為(wei)(wei)這些國(guo)(guo)家廢(fei)雜銅(tong)收(shou)(shou)集過程中(zhong)分(fen)類清晰。

將已(yi)區分牌號的(de)(de)(de)純(chun)凈銅合(he)(he)金(jin)廢料配入適當的(de)(de)(de)純(chun)金(jin)屬和(he)中(zhong)間合(he)(he)金(jin)(用(yong)銅和(he)銅合(he)(he)金(jin)元素事先(xian)熔制(zhi)成熔點較低的(de)(de)(de)一種(zhong)合(he)(he)金(jin))經熔煉即可制(zhi)得各種(zhong)牌號的(de)(de)(de)銅合(he)(he)金(jin)。再(zai)生原料熔煉銅合(he)(he)金(jin)，目前廣泛使用(yong)工(gong)頻感(gan)應爐。從合(he)(he)金(jin)中(zhong)除去菲(fei)金(jin)屬夾(jia)雜物(wu)的(de)(de)(de)簡單而(er)有效的(de)(de)(de)方法是過濾(lv)法。可用(yong)破(po)碎的(de)(de)(de)人造剛玉(yu)、鎂砂、熔化過的(de)(de)(de)氟化鈣和(he)氟化鎂作(zuo)過濾(lv)介質，其粒(li)度(du)為(wei)5～10mm，過濾(lv)層厚度(du)為(wei)60～150mm，過濾(lv)時(shi)還(huan)可促迸金(jin)屬的(de)(de)(de)部分脫(tuo)氣

貴州達黔輝煌物資回收有限公司專業從事貴陽廢鋁回收、貴陽廢銅回收、貴州廢舊金屬回收以及貴(gui)陽成品(pin)(pin)鋼(gang)材(cai)回收等回收業務。回收的(de)廢品(pin)(pin)主要包含：廢銅(tong)、黃銅(tong)、紅銅(tong)、紫銅(tong)、廢銅(tong)線、銅(tong)材(cai)、廢電纜、廢鋁(lv)、鋁(lv)板、鋁(lv)材(cai)、鋁(lv)塊、廢鋁(lv)線、成品(pin)(pin)鋼(gang)材(cai)、稀有金(jin)屬等。