◆結構與工作原理
PGZ系列平板式離心機為間隙式周期性工作方式的離心機。它在可編程序的控制下,由電氣系統自動完成工作周期。可實現多次進料、多次洗滌、多次脫水的要求。采用變頻調速電機,及其各階段轉速可根據需要進行任意調節。其工序和時間可通過調整程序而隨意調整,工作程序分為七個工序:1.轉鼓啟動;2.進料;3.脫水;4.洗料5.二次脫水;6.轉鼓制動至低速;7.卸料,以達到最佳工作效率。
PGZ系(xi)列平板離心(xin)機(ji)是一種全自動(dong)控制(zhi)(zhi)的(de)(de)(de)立式刮(gua)刀(dao)卸料(liao)(liao)(liao)(liao)離心(xin)機(ji),在(zai)(zai)電氣控制(zhi)(zhi)下,轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)鼓(gu)(gu)啟動(dong)達到(dao)(dao)進(jin)(jin)(jin)(jin)料(liao)(liao)(liao)(liao)速度(du)后(hou),控制(zhi)(zhi)系(xi)統(tong)(tong)打開(kai)進(jin)(jin)(jin)(jin)料(liao)(liao)(liao)(liao)閥,被處理懸(xuan)浮液(ye)從進(jin)(jin)(jin)(jin)料(liao)(liao)(liao)(liao)管(guan)進(jin)(jin)(jin)(jin)入轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)鼓(gu)(gu)。在(zai)(zai)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)鼓(gu)(gu)高速旋轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)產生的(de)(de)(de)強大離心(xin)機(ji)作用下,進(jin)(jin)(jin)(jin)入轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)鼓(gu)(gu)內的(de)(de)(de)懸(xuan)浮液(ye)被均(jun)勻布于轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)鼓(gu)(gu)內壁的(de)(de)(de)過(guo)(guo)濾(lv)介質(zhi)上(shang)(shang),成(cheng)空心(xin)圓(yuan)柱狀。液(ye)相通(tong)過(guo)(guo)過(guo)(guo)濾(lv)介質(zhi)和(he)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)鼓(gu)(gu)上(shang)(shang)的(de)(de)(de)許多小(xiao)孔被甩出轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)鼓(gu)(gu)外,由(you)(you)機(ji)殼內壁和(he)底(di)盤搜(sou)集,從出液(ye)管(guan)排除(chu),而(er)固相粒(li)子則(ze)被留(liu)在(zai)(zai)過(guo)(guo)濾(lv)介質(zhi)上(shang)(shang)。當進(jin)(jin)(jin)(jin)料(liao)(liao)(liao)(liao)量達到(dao)(dao)設(she)定(ding)值,由(you)(you)料(liao)(liao)(liao)(liao)層控制(zhi)(zhi)器(或進(jin)(jin)(jin)(jin)料(liao)(liao)(liao)(liao)時間)向控制(zhi)(zhi)系(xi)統(tong)(tong)發出信號,關(guan)閉進(jin)(jin)(jin)(jin)料(liao)(liao)(liao)(liao)閥門。同時,根據工藝(yi)需(xu)要可對物料(liao)(liao)(liao)(liao)進(jin)(jin)(jin)(jin)行洗滌,洗滌達到(dao)(dao)要求(qiu)后(hou),在(zai)(zai)脫水速度(du)下進(jin)(jin)(jin)(jin)行二次脫水。處理物料(liao)(liao)(liao)(liao)達到(dao)(dao)分離要求(qiu),控制(zhi)(zhi)系(xi)統(tong)(tong)控制(zhi)(zhi)主(zhu)電機(ji)將回轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)體的(de)(de)(de)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)速降到(dao)(dao)卸料(liao)(liao)(liao)(liao)速度(du),卸料(liao)(liao)(liao)(liao)機(ji)構采用窄刮(gua)刀(dao),先由(you)(you)旋轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)缸驅動(dong)徑向刮(gua)料(liao)(liao)(liao)(liao),到(dao)(dao)位后(hou)停留(liu)一下,在(zai)(zai)軸向行程卸料(liao)(liao)(liao)(liao),下降到(dao)(dao)位刮(gua)刀(dao)下轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)鼓(gu)(gu)上(shang)(shang)的(de)(de)(de)物料(liao)(liao)(liao)(liao)。固相顆粒(li)通(tong)過(guo)(guo)刮(gua)刀(dao)卸料(liao)(liao)(liao)(liao)借助(zhu)重力經過(guo)(guo)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)鼓(gu)(gu)底(di)的(de)(de)(de)卸料(liao)(liao)(liao)(liao)口(kou)從基座底(di)部排除(chu)。機(ji)器完成(cheng)一個(ge)工作循環,在(zai)(zai)控制(zhi)(zhi)系(xi)統(tong)(tong)(PLC)的(de)(de)(de)控制(zhi)(zhi)下進(jin)(jin)(jin)(jin)入到(dao)(dao)下一個(ge)工作循環。