山東埃(ai)爾派 | 點擊(ji)量:0次 | 2020-04-30
粉煤灰加工時的電選機 粉煤灰的低成本超細分級
利(li)用(yong)粉(fen)煤灰微(wei)珠替代氧化(hua)鋁粉(fen)體(ti)(ti)制造陶(tao)瓷(ci)膜,利(li)用(yong)其球形微(wei)珠體(ti)(ti)作為致孔(kong)劑可以獲得更好的過濾效(xiao)果(guo),也大(da)(da)大(da)(da)降(jiang)(jiang)低原料(liao)成本。利(li)用(yong)粉(fen)煤灰微(wei)珠的空心、微(wei)孔(kong)、球形特點,可以用(yong)于(yu)保(bao)溫、降(jiang)(jiang)噪(zao)、輕體(ti)(ti)、吸(xi)附材料(liao)或載體(ti)(ti)等。
高壓電選機:
高(gao)(gao)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)選(xuan)機(ji)(ji)又稱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)選(xuan)機(ji)(ji)。原料中(zhong)(zhong)(zhong)的(de)(de)(de)礦(kuang)物(wu)具有不(bu)同導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)質(例如導(dao)體(ti)(ti)、絕緣體(ti)(ti)和(he)半(ban)(ban)導(dao)體(ti)(ti),以及兩種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)相差很(hen)(hen)大的(de)(de)(de)半(ban)(ban)導(dao)體(ti)(ti))時,可采(cai)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)選(xuan)機(ji)(ji)分眩在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)選(xuan)機(ji)(ji)中(zhong)(zhong)(zhong),固體(ti)(ti)顆(ke)(ke)粒(li)(li)(li)通過(guo)與接地轉(zhuan)鼓(gu)(gu)平(ping)行的(de)(de)(de)細(xi)絲(si)(si)、-組(zu)針尖(jian)或(huo)(huo)金(jin)屬片產生的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)區。具有不(bu)同形(xing)狀(zhuang)的(de)(de)(de)所有顆(ke)(ke)粒(li)(li)(li)都獲(huo)得了與電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)極(ji)性(xing)相同的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷(he)(he)。當(dang)(dang)細(xi)絲(si)(si)或(huo)(huo)針尖(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)升高(gao)(gao)到一定的(de)(de)(de)值時,發生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)隨電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)半(ban)(ban)徑改變(bian)而變(bian)化。所以,在(zai)實(shi)踐中(zhong)(zhong)(zhong),采(cai)用(yong)中(zhong)(zhong)(zhong)等的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)和(he)半(ban)(ban)徑小的(de)(de)(de)細(xi)絲(si)(si)和(he)針尖(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)。粉煤灰(hui)綜(zong)合利用(yong)的(de)(de)(de)過(guo)程中(zhong)(zhong)(zhong)用(yong)粉煤灰(hui)磨將粉煤灰(hui)磨細(xi)是(shi)一項非常重要的(de)(de)(de)工作(zuo)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)的(de)(de)(de)類型決定于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)極(ji)性(xing)。如果電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)為正極(ji),那么(me)負(fu)離(li)(li)子(zi)向電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)加速(su)(su)運動,引起(qi)窄氣分子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)(li),柑反,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)排斥(chi)正離(li)(li)子(zi),形(xing)成電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)火花。如I果電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)(li)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)極(ji)性(xing)是(shi)負(fu)極(ji),正離(li)(li)子(zi)向電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)加速(su)(su)運動,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)排斥(chi)氧離(li)(li)子(zi),使(shi)其向接地轉(zhuan)鼓(gu)(gu)運動,岡I而產生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。礦(kuang)粒(li)(li)(li)表嘶(si)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷(he)(he)密(mi)度決定于顆(ke)(ke)粒(li)(li)(li)的(de)(de)(de)形(xing)狀(zhuang)、給料速(su)(su)度、顆(ke)(ke)粒(li)(li)(li)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)中(zhong)(zhong)(zhong)暴露時問和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)強度。當(dang)(dang)顆(ke)(ke)粒(li)(li)(li)在(zai)接地轉(zhuan)鼓(gu)(gu)卜.旋轉(zhuan)時,它們與轉(zhuan)鼓(gu)(gu)分享電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷(he)(he)。非導(dao)體(ti)(ti)顆(ke)(ke)粒(li)(li)(li)失去電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷(he)(he)很(hen)(hen)緩(huan)慢,保留(liu)在(zai)轉(zhuan)鼓(gu)(gu)L,而導(dao)體(ti)(ti)顆(ke)(ke)粒(li)(li)(li)迅速(su)(su)地失去電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷(he)(he),借助(zhu)離(li)(li)心(xin)力離(li)(li)開轉(zhuan)鼓(gu)(gu)。因此,調節分礦(kuang)器的(de)(de)(de)位(wei)置,町使(shi)導(dao)體(ti)(ti)顆(ke)(ke)粒(li)(li)(li)和(he)非導(dao)體(ti)(ti)顆(ke)(ke)粒(li)(li)(li)得到不(bu)同的(de)(de)(de)運動軌(gui)跡(ji),從而促(cu)使(shi)顆(ke)(ke)粒(li)(li)(li)分離(li)(li)。
接觸電選機:
當顆粒(li)(li)(li)(li)與(yu)傳導(dao)(dao)(dao)(dao)電(dian)極(ji)接(jie)觸(chu)時(shi)(shi),在電(dian)場中可將導(dao)(dao)(dao)(dao)體(ti)(ti)與(yu)非導(dao)(dao)(dao)(dao)體(ti)(ti)分(fen)離開,這(zhe)就是(shi)(shi)接(jie)觸(chu)電(dian)選機的(de)(de)依據。當有高(gao)壓電(dian)場存在時(shi)(shi),不同顆粒(li)(li)(li)(li)與(yu)接(jie)地導(dao)(dao)(dao)(dao)體(ti)(ti)接(jie)觸(chu),可以發生(sheng)傳導(dao)(dao)(dao)(dao)感(gan)應(ying)帶電(dian)。通常通過傳34導(dao)(dao)(dao)(dao),導(dao)(dao)(dao)(dao)體(ti)(ti)顆粒(li)(li)(li)(li)迅速(su)(su)帶電(dian),I而(er)絕緣(yuan)顆粒(li)(li)(li)(li)帶電(dian)的(de)(de)速(su)(su)度要(yao)慢(man)得多(duo),從而(er)使(shi)導(dao)(dao)(dao)(dao)體(ti)(ti)顆粒(li)(li)(li)(li)+j絕緣(yuan)顆粒(li)(li)(li)(li)分(fen)開。顆粒(li)(li)(li)(li)的(de)(de)電(dian)荷(he)密度是(shi)(shi)顆粒(li)(li)(li)(li)形狀、。j電(dian)極(ji)接(jie)觸(chu)時(shi)(shi)間和其電(dian)導(dao)(dao)(dao)(dao)率的(de)(de)函數。但是(shi)(shi),此時(shi)(shi)顆粒(li)(li)(li)(li)電(dian)荷(he)很小,所以,用這(zhe)種方法J機牛的(de)(de)力比離子轟。m盤生(sheng)的(de)(de)力一般要(yao)弱(ruo)。通過傳導(dao)(dao)(dao)(dao)呵使(shi)導(dao)(dao)(dao)(dao)體(ti)(ti)顆粒(li)(li)(li)(li)迅速(su)(su)帶電(dian),而(er)與(yu)帶電(dian)速(su)(su)度要(yao)慢(man)得多(duo)的(de)(de)導(dao)(dao)(dao)(dao)電(dian)性(xing)差的(de)(de)顆粒(li)(li)(li)(li):,但是(shi)(shi),由(you)于顆粒(li)(li)(li)(li)卡(ka)}{甄(zhen)接(jie)觸(chu),或(huo)與(yu)電(dian)極(ji)板接(jie)觸(chu),這(zhe)兩(liang)種顆粒(li)(li)(li)(li)都會獲得電(dian)倚,所以,帶電(dian)機理足比較復雜(za)的(de)(de),也是(shi)(shi)難以預料的(de)(de)。
表(biao)面改性(xing)(xing)是填料(liao)由(you)一(yi)般(ban)增量(liang)填料(liao)變為(wei)功(gong)能性(xing)(xing)填料(liao)所(suo)必要(yao)的加(jia)工手段之一(yi),也是礦(kuang)物(wu)(wu)填料(liao)表(biao)面改性(xing)(xing)主(zhu)要(yao)的目的。礦(kuang)物(wu)(wu)填料(liao)表(biao)面改性(xing)(xing)主(zhu)要(yao)作(zuo)用包(bao)括分散作(zuo)用、降黏(nian)作(zuo)用、增填作(zuo)用、界面力學(xue)作(zuo)用。最常用改性(xing)(xing)方(fang)(fang)法主(zhu)要(yao)有表(biao)面化(hua)學(xue)改性(xing)(xing)法、包(bao)覆改性(xing)(xing)法、機(ji)械(xie)力化(hua)學(xue)改性(xing)(xing)法。山東埃(ai)爾派粉(fen)體科技(ji)有限公司提(ti)供各類(lei)非金屬礦(kuang)物(wu)(wu)(粉(fen)煤灰、鋼渣、礦(kuang)渣等(deng))改性(xing)(xing)設(she)備和方(fang)(fang)案(an)。