煤粉灰烘干機是(shi)煤粉經高溫燃燒后形成的(de)一種似火(huo)山灰質混(hun)合材料。

它是燃(ran)燒煤(mei)(mei)(mei)的(de)發(fa)電廠將煤(mei)(mei)(mei)磨成(cheng)(cheng)(cheng)100微(wei)(wei)米以(yi)下的(de)煤(mei)(mei)(mei)粉(fen)，用預熱空氣噴入爐膛經(jing)燃(ran)燒形成(cheng)(cheng)(cheng)懸(xuan)浮狀態，產(chan)生混雜有大量不燃(ran)物的(de)高溫煙氣，經(jing)集塵裝置捕(bu)集就得到了粉(fen)煤(mei)(mei)(mei)灰。粉(fen)煤(mei)(mei)(mei)灰的(de)化學組成(cheng)(cheng)(cheng)與(yu)粘土質相(xiang)似，主(zhu)要(yao)成(cheng)(cheng)(cheng)分為二(er)氧化硅、三氧化二(er)鋁(lv)、三氧化二(er)鐵、氧化鈣和(he)未燃(ran)盡碳。

工(gong)作原理

濕粉煤(mei)灰(hui)由(you)供(gong)料(liao)(liao)裝置進(jin)(jin)入(ru)(ru)三層(ceng)(ceng)滾(gun)(gun)筒(tong)的(de)內(nei)層(ceng)(ceng),實現順流(liu)烘(hong)干(gan)(gan)(gan), 粉煤(mei)灰(hui)在(zai)(zai)內(nei)層(ceng)(ceng)的(de)抄板下不(bu)斷抄起、散落(luo)(luo)呈(cheng)螺(luo)旋行(xing)(xing)(xing)(xing)進(jin)(jin)式(shi)實現熱交換，物(wu)(wu)料(liao)(liao)移動至內(nei)層(ceng)(ceng)的(de)另(ling)一端進(jin)(jin)入(ru)(ru)中(zhong)(zhong)(zhong)層(ceng)(ceng)，進(jin)(jin)行(xing)(xing)(xing)(xing)逆流(liu)烘(hong)干(gan)(gan)(gan)，物(wu)(wu)料(liao)(liao)在(zai)(zai)中(zhong)(zhong)(zhong)層(ceng)(ceng)不(bu)斷地被反復揚進(jin)(jin)，呈(cheng)進(jin)(jin)兩(liang)步退一步的(de)行(xing)(xing)(xing)(xing)進(jin)(jin)方式(shi)，物(wu)(wu)料(liao)(liao)在(zai)(zai)中(zhong)(zhong)(zhong)層(ceng)(ceng)既(ji)充分吸收(shou)內(nei)層(ceng)(ceng)滾(gun)(gun)筒(tong)散發的(de)熱量，又吸收(shou)中(zhong)(zhong)(zhong)層(ceng)(ceng)滾(gun)(gun)筒(tong)的(de)熱量，同時(shi)又延長了(le)干(gan)(gan)(gan)燥(zao)時(shi)間，物(wu)(wu)料(liao)(liao)在(zai)(zai)此達(da)(da)到(dao)干(gan)(gan)(gan)燥(zao)狀態(tai)。物(wu)(wu)料(liao)(liao)行(xing)(xing)(xing)(xing)至中(zhong)(zhong)(zhong)層(ceng)(ceng)另(ling)一端而(er)落(luo)(luo)入(ru)(ru)外層(ceng)(ceng)，物(wu)(wu)料(liao)(liao)在(zai)(zai)外層(ceng)(ceng)滾(gun)(gun)筒(tong)內(nei)呈(cheng)矩形多回路方式(shi)行(xing)(xing)(xing)(xing)進(jin)(jin)，達(da)(da)到(dao)干(gan)(gan)(gan)燥(zao)效(xiao)果的(de)物(wu)(wu)料(liao)(liao)在(zai)(zai)熱風作用(yong)下快速(su)行(xing)(xing)(xing)(xing)進(jin)(jin)排出滾(gun)(gun)筒(tong)，沒有達(da)(da)到(dao)干(gan)(gan)(gan)燥(zao)效(xiao)果的(de)濕物(wu)(wu)料(liao)(liao)因(yin)自重而(er)不(bu)能快速(su)行(xing)(xing)(xing)(xing)進(jin)(jin)，物(wu)(wu)料(liao)(liao)在(zai)(zai)此矩形抄板內(nei)進(jin)(jin)行(xing)(xing)(xing)(xing)充分干(gan)(gan)(gan)燥(zao)，由(you)此達(da)(da)到(dao)干(gan)(gan)(gan)燥(zao)效(xiao)果，完成干(gan)(gan)(gan)燥(zao)過(guo)程。

設備特點

該設備與其他干燥設備相比，生產能力大(da)(da)，可連續操(cao)作(zuo)； 結構簡單(dan)，操(cao)作(zuo)方便；故障少，維修費用低；適用范圍廣(guang)，流體(ti)阻力小，可以用它干燥顆(ke)料狀物(wu)料，對于那些附著性大(da)(da)的物(wu)料也很有(you)利；操(cao)作(zuo)彈性大(da)(da)，生產上允許(xu)產品的流量有(you)較大(da)(da)波動(dong)范圍，不會影(ying)響產品的質(zhi)量；清(qing)掃容易。