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幾種自動配料模式的原理與優缺點
時間:2022-06-16 17:54

  靜態(tai)配(pei)(pei)(pei)料(liao)(liao)(liao)(liao)(liao)(liao)模式(shi)(shi) 靜態(tai)配(pei)(pei)(pei)料(liao)(liao)(liao)(liao)(liao)(liao)模式(shi)(shi)適(shi)用(yong)(yong)(yong)于(yu)(yu)無(wu)連續配(pei)(pei)(pei)料(liao)(liao)(liao)(liao)(liao)(liao)要(yao)(yao)求的(de)(de)現(xian)場(chang),這(zhe)些現(xian)場(chang)對配(pei)(pei)(pei)料(liao)(liao)(liao)(liao)(liao)(liao)的(de)(de)時(shi)間(jian)(jian)(jian)(jian)要(yao)(yao)求不高(gao),可(ke)(ke)(ke)按批次(ci)(ci)進(jin)行配(pei)(pei)(pei)料(liao)(liao)(liao)(liao)(liao)(liao),批間(jian)(jian)(jian)(jian)允(yun)許存在(zai)(zai)一(yi)(yi)定(ding)的(de)(de)時(shi)間(jian)(jian)(jian)(jian)間(jian)(jian)(jian)(jian)隔,如高(gao)爐槽下(xia)上(shang)(shang)(shang)料(liao)(liao)(liao)(liao)(liao)(liao)前后(hou)兩批間(jian)(jian)(jian)(jian)時(shi)間(jian)(jian)(jian)(jian)間(jian)(jian)(jian)(jian)隔為3~5分(fen)(fen)鐘,每(mei)批料(liao)(liao)(liao)(liao)(liao)(liao)由(you)多種物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)組成(cheng),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)所(suo)占比(bi)(bi)率根據工藝(yi)要(yao)(yao)求在(zai)(zai)一(yi)(yi)段時(shi)間(jian)(jian)(jian)(jian)內(nei)相對固(gu)定(ding),對單(dan)(dan)批料(liao)(liao)(liao)(liao)(liao)(liao)的(de)(de)組成(cheng)比(bi)(bi)例(li)(li)要(yao)(yao)求并(bing)(bing)不嚴格,只要(yao)(yao)在(zai)(zai)較多批中(zhong)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)組成(cheng)比(bi)(bi)例(li)(li)能達到(dao)工藝(yi)要(yao)(yao)求即(ji)可(ke)(ke)(ke)。 靜態(tai)配(pei)(pei)(pei)料(liao)(liao)(liao)(liao)(liao)(liao)模式(shi)(shi)下(xia),各(ge)種物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)分(fen)(fen)別(bie)貯放(fang)在(zai)(zai)不同(tong)料(liao)(liao)(liao)(liao)(liao)(liao)倉(cang)(cang),料(liao)(liao)(liao)(liao)(liao)(liao)倉(cang)(cang)給料(liao)(liao)(liao)(liao)(liao)(liao)一(yi)(yi)般采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)(yong)電振給料(liao)(liao)(liao)(liao)(liao)(liao)、螺(luo)旋(xuan)給料(liao)(liao)(liao)(liao)(liao)(liao)或(huo)星(xing)形(xing)給料(liao)(liao)(liao)(liao)(liao)(liao)等(deng)形(xing)式(shi)(shi),計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)一(yi)(yi)般采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)(yong)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)倉(cang)(cang),并(bing)(bing)配(pei)(pei)(pei)裝有壓式(shi)(shi)或(huo)拉式(shi)(shi)重力(li)傳感器(qi)進(jin)行力(li)電轉換(huan),信號經二次(ci)(ci)儀(yi)(yi)表放(fang)大處(chu)理后(hou)接(jie)入PLC或(huo)DCS等(deng)來(lai)完成(cheng)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)。在(zai)(zai)一(yi)(yi)些對時(shi)間(jian)(jian)(jian)(jian)要(yao)(yao)求寬的(de)(de)應(ying)用(yong)(yong)(yong)場(chang)合,可(ke)(ke)(ke)以(yi)采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)(yong)一(yi)(yi)個(ge)(ge)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)小(xiao)(xiao)車(che)進(jin)行統一(yi)(yi)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang),計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)小(xiao)(xiao)車(che)沿軌道(dao)運行,依次(ci)(ci)定(ding)位到(dao)各(ge)料(liao)(liao)(liao)(liao)(liao)(liao)倉(cang)(cang)下(xia)按比(bi)(bi)例(li)(li)進(jin)行物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)配(pei)(pei)(pei)加(jia)(jia),各(ge)種物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)的(de)(de)配(pei)(pei)(pei)加(jia)(jia)量(liang)(liang)(liang)(liang)(liang)(liang)采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)(yong)減差(cha)法計(ji)(ji)算出來(lai)。亦有采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)(yong)單(dan)(dan)一(yi)(yi)固(gu)定(ding)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)倉(cang)(cang)方式(shi)(shi)的(de)(de),各(ge)料(liao)(liao)(liao)(liao)(liao)(liao)倉(cang)(cang)以(yi)環狀分(fen)(fen)布在(zai)(zai)一(yi)(yi)個(ge)(ge)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)倉(cang)(cang)周圍(wei),各(ge)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)的(de)(de)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)亦采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)(yong)減差(cha)法,物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)自溜槽或(huo)皮帶輸(shu)(shu)送(song)(song)機(ji)依次(ci)(ci)按比(bi)(bi)例(li)(li)配(pei)(pei)(pei)加(jia)(jia)到(dao)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)倉(cang)(cang)。 分(fen)(fen)別(bie)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)和減差(cha)法計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)之(zhi)間(jian)(jian)(jian)(jian)各(ge)有優缺點,分(fen)(fen)別(bie)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)可(ke)(ke)(ke)以(yi)根據每(mei)次(ci)(ci)所(suo)加(jia)(jia)料(liao)(liao)(liao)(liao)(liao)(liao)的(de)(de)重量(liang)(liang)(liang)(liang)(liang)(liang)、體積(ji)來(lai)設計(ji)(ji)合適(shi)的(de)(de)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)倉(cang)(cang)和計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)儀(yi)(yi)表,可(ke)(ke)(ke)以(yi)提(ti)高(gao)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)的(de)(de)準確(que)性(xing),尤其(qi)是對小(xiao)(xiao)比(bi)(bi)例(li)(li)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao),但(dan)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)倉(cang)(cang)與計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)設備成(cheng)倍增加(jia)(jia),成(cheng)本較高(gao)。減差(cha)法計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)(yong)一(yi)(yi)個(ge)(ge)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)倉(cang)(cang)或(huo)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)小(xiao)(xiao)車(che),計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)設備投資少,同(tong)時(shi)由(you)于(yu)(yu)采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)(yong)同(tong)一(yi)(yi)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)設備,無(wu)論(lun)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)誤差(cha)如何,但(dan)都可(ke)(ke)(ke)以(yi)保證物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)按比(bi)(bi)例(li)(li)配(pei)(pei)(pei)加(jia)(jia),但(dan)對于(yu)(yu)小(xiao)(xiao)比(bi)(bi)例(li)(li)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)配(pei)(pei)(pei)加(jia)(jia)往難以(yi)保證其(qi)準確(que)性(xing)。 計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)后(hou)的(de)(de)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)經過集中(zhong)后(hou)一(yi)(yi)般形(xing)成(cheng)層狀或(huo)段狀分(fen)(fen)布的(de)(de)一(yi)(yi)批料(liao)(liao)(liao)(liao)(liao)(liao)通過輸(shu)(shu)送(song)(song)設備(如皮帶或(huo)小(xiao)(xiao)車(che))輸(shu)(shu)送(song)(song)到(dao)受(shou)料(liao)(liao)(liao)(liao)(liao)(liao)口,進(jin)入下(xia)一(yi)(yi)工序,即(ji)完成(cheng)一(yi)(yi)批料(liao)(liao)(liao)(liao)(liao)(liao)的(de)(de)配(pei)(pei)(pei)加(jia)(jia)。由(you)于(yu)(yu)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)(liao)計(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)、輸(shu)(shu)送(song)(song)、加(jia)(jia)入等(deng)環節在(zai)(zai)時(shi)間(jian)(jian)(jian)(jian)上(shang)(shang)(shang)可(ke)(ke)(ke)以(yi)重疊在(zai)(zai),在(zai)(zai)控(kong)制流(liu)程可(ke)(ke)(ke)以(yi)采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)(yong)并(bing)(bing)行方式(shi)(shi),以(yi)節省上(shang)(shang)(shang)料(liao)(liao)(liao)(liao)(liao)(liao)時(shi)間(jian)(jian)(jian)(jian),提(ti)高(gao)上(shang)(shang)(shang)料(liao)(liao)(liao)(liao)(liao)(liao)速度(du)。

  動(dong)(dong)態配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)模式(shi) 動(dong)(dong)態配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)適用(yong)于連續配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)要求的(de)(de)現(xian)場,如燒結配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)、焦化配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)。這些現(xian)場對(dui)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)的(de)(de)連續性要求較(jiao)(jiao)高,一(yi)(yi)般(ban)不允許(xu)出現(xian)中間(jian)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)停止的(de)(de)情況(kuang),對(dui)各種(zhong)物料(liao)(liao)(liao)的(de)(de)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)比(bi)要求比(bi)較(jiao)(jiao)嚴格。動(dong)(dong)態配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)系(xi)統計量(liang)一(yi)(yi)般(ban)采用(yong)電子(zi)皮帶秤(cheng)或(huo)核子(zi)秤(cheng)作(zuo)為(wei)計量(liang)設備,配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)秤(cheng)主機都(dou)帶有PID調(diao)節及報警(jing)功能,可以(yi)實現(xian)一(yi)(yi)個(ge)倉的(de)(de)自(zi)(zi)動(dong)(dong)控制。對(dui)于整個(ge)自(zi)(zi)動(dong)(dong)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)系(xi)統而言,配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)秤(cheng)一(yi)(yi)般(ban)作(zuo)為(wei)計量(liang)儀表使用(yong),有些自(zi)(zi)動(dong)(dong)控制功能比(bi)較(jiao)(jiao)強(qiang)的(de)(de)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)秤(cheng)可以(yi)利用(yong)其自(zi)(zi)控功能,配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)秤(cheng)通(tong)過(guo)現(xian)場總(zong)線與(yu)控制主機進行聯系(xi),構(gou)成一(yi)(yi)個(ge)分散式(shi)的(de)(de)體(ti)系(xi),配(pei)(pei)(pei)(pei)(pei)(pei)(pei)料(liao)(liao)(liao)秤(cheng)在(zai)體(ti)系(xi)作(zuo)為(wei)一(yi)(yi)個(ge)子(zi)站或(huo)從(cong)站。

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