攪拌干燥機的熱介質流量控制
廣(guang)東紅寶機(ji)械科技有限公司的攪(jiao)拌干燥(zao)機(ji)熱(re)(re)介(jie)質(zhi)流(liu)量(liang)控(kong)制(zhi)(zhi)采(cai)用(yong)全自(zi)動調(diao)節系統,確(que)保(bao)加熱(re)(re)均(jun)勻(yun)與能耗優(you)化。系統由電磁流(liu)量(liang)計(精度(du)(du)±0.5%)、電動調(diao)節閥(調(diao)節范(fan)圍0-100%)及PLC控(kong)制(zhi)(zhi)器(qi)組(zu)成,支(zhi)持蒸(zheng)汽、導(dao)(dao)熱(re)(re)油(you)、熱(re)(re)水等多種介(jie)質(zhi)。工作時(shi)(shi),溫度(du)(du)傳感器(qi)實時(shi)(shi)檢測物料溫度(du)(du),PLC根據設(she)定值(zhi)(zhi)與實際值(zhi)(zhi)偏差,通過(guo)PID算法調(diao)節閥門(men)(men)開度(du)(du)(響應時(shi)(shi)間(jian)(jian)<2秒(miao)),控(kong)制(zhi)(zhi)介(jie)質(zhi)流(liu)量(liang)(蒸(zheng)汽0-5000kg/h,導(dao)(dao)熱(re)(re)油(you)0-100m3/h),維(wei)持溫度(du)(du)穩定(波動≤±1℃)。針對間(jian)(jian)歇(xie)式(shi)干燥(zao),流(liu)量(liang)控(kong)制(zhi)(zhi)分階(jie)段調(diao)節:升溫階(jie)段全開閥門(men)(men)(最大流(liu)量(liang)),恒溫階(jie)段精準控(kong)流(liu)(維(wei)持設(she)定溫度(du)(du)),降溫階(jie)段關(guan)閉(bi)閥門(men)(men)。系統支(zhi)持流(liu)量(liang)曲線預設(she)(如(ru)階(jie)梯式(shi)、線性),適配不同物料加熱(re)(re)需求,并(bing)具(ju)備超流(liu)量(liang)保(bao)護(超過(guo)設(she)定值(zhi)(zhi)120%時(shi)(shi)關(guan)閉(bi)閥門(men)(men)),防止熱(re)(re)沖擊(ji)損(sun)壞設(she)備。流(liu)量(liang)數據實時(shi)(shi)顯示于(yu)觸(chu)摸屏,可(ke)導(dao)(dao)出歷史曲線用(yong)于(yu)工藝優(you)化。