為(wei)了(le)使(shi)刨(pao)花(hua)的(de)終(zhong)含(han)水(shui)率(lv)達(da)到(dao)一(yi)定(ding)的(de)要(yao)求(qiu)
，應(ying)根(gen)據(ju)不(bu)同(tong)的(de)幹(gan)燥(zao)條(tiao)件(jian)，采(cai)取(qu)不(bu)同(tong)的(de)幹(gan)燥(zao)工(gong)藝(yi)。幹(gan)燥(zao)條(tiao)件(jian)取(qu)決(jue)於(yu)供(gong)熱(re)和(he)對(dui)刨(pao)花(hua)的(de)傳(chuan)熱(re)情(qing)況(kuang)，由(you)於(yu)刨(pao)花(hua)體(ti)積(ji)較(jiao)小(xiao)，而(er)且(qie)呈(cheng)疏(shu)鬆(song)狀(zhuang)態(tai)

，在(zai)幹(gan)燥(zao)過(guo)程(cheng)中(zhong)不(bu)必(bi)考(kao)慮(lv)產(chan)生(sheng)變(bian)形(xing)和(he)開(kai)裂(lie)等(deng)缺(que)陷(xian)。因(yin)此(ci)
，刨(pao)花(hua)幹(gan)燥(zao)可(ke)以(yi)采(cai)用(yong)較(jiao)高(gao)的(de)溫(wen)度(du)
、較jiao低di的de相xiang對dui濕shi度du的de幹gan燥zao規gui程cheng進jin行xing快kuai速su幹gan燥zao。幹gan燥zao介jie質zhi溫wen度du愈yu高gao，幹gan燥zao時shi間jian愈yu短duan。幹gan燥zao過guo程cheng中zhong幹gan燥zao介jie質zhi與yu刨pao花hua之zhi間jian溫wen差cha小xiao，幹gan燥zao時shi間jian也ye短duan，富fu通tong新xin能neng源yuan專zhuan業ye生sheng產chan銷xiao售shou滾筒烘幹機、氣流式烘幹機等木屑幹燥烘幹機械設備。
    數十年來，國際上刨花板工業已經出現了多種不同類型的烘幹機。刨花烘幹機可按下述幾方麵分類：①燃料類型。烘幹機使用的燃料有煤氣（天然的或液態的）
、汽油
、煤、木材如板皮、廢木塊
、樹皮、粉塵、鋸屑及刨花板裁邊後的邊條）等。②熱介質。使用的熱介質有蒸汽
、高溫熱水
、熱空氣及煙氣等。③設備結構。有回轉式和固定式兩大類。④傳熱方式。有傳導、對流和輻射三種。對某種烘幹機來說
，不同傳熱方式僅有主次之分。如蒸汽或熱水）烘幹機，傳熱方式以傳導為主，故可稱為接觸式烘幹機。氣流烘幹機以對流傳熱為主，故一般稱為對流式烘幹機。⑤熱re介jie質zhi與yu刨pao花hua接jie觸chu方fang式shi。烘hong幹gan機ji的de熱re介jie質zhi如ru采cai用yong蒸zheng汽qi或huo熱re水shui，則ze不bu能neng與yu刨pao花hua直zhi接jie接jie觸chu
，必bi須xu通tong過guo管guan道dao的de管guan壁bi將jiang熱re量liang傳chuan遞di給gei刨pao花hua，因yin此ci這zhe類lei烘hong幹gan機ji稱cheng為wei間jian接jie傳chuan熱re為wei主zhu的de烘hong幹gan機ji，熱re介jie質zhi如ru采cai用yong熱re氣qi流liu或huo高gao溫wen煙yan氣qi，可ke與yu刨pao花hua直zhi接jie接jie觸chu進jin行xing熱re交jiao換huan
，這zhe類lei烘hong幹gan機ji可ke稱cheng為wei直zhi接jie傳chuan熱re為wei主zhu的de烘hong幹gan機ji。
    刨花幹燥設備按上述供熱和刨花移動方式可分為接觸供熱和機械傳動幹燥、對流供熱和機械傳動幹燥、對流供熱和氣流傳動幹燥三大類。
1、接觸供熱和機械傳動幹燥
    接觸供熱和機械傳動幹燥可分為接觸加熱回轉圓筒式烘幹機、轉子式烘幹機和帶有預熱裝置的Schilde烘幹機等。
1.1接觸加熱回轉圓筒式烘幹機
zheshiyizhongpaohuabanshengchanzhongchangyongdeganzaoshebei。zhengqicongyuantongyiduandejinqiguanjinru，tongguoneibuduozujiareguan
，yuantonglingyiduanyoupaiqiguan，paohuacongjinliaokoujinru

，yujiareguanjiechu，jiarepaohuashizhiganzao。yuantonganzhuangchengyidingqingxiedu
，bingzaiyuantongneiyoudaoxiangyepian，zaiyuantonghuizhuanshishipaohuazhujianxiangchukouchuyidong。ganzaoguochengzhong
，bixusuishijiangtongneishikongqipaichuheburuxinxiankongqi。tongneikongqiliudongsudubuyingtaikuai
，yimianpaohuabeigaosuqiliudaizou。zhezhonghongganjidequedianshipaohuazhijianyijipaohuayuhongganjibihejiareguanzhijianyoumoca，rongyishipaohuaposuiheshengchengfenchen：圓筒內有較多的蒸汽管，一旦漏氣維修較為困難。
1.2轉子式烘幹機
    它(ta)和(he)回(hui)轉(zhuan)圓(yuan)筒(tong)烘(hong)幹(gan)機(ji)不(bu)同(tong)之(zhi)處(chu)是(shi)機(ji)殼(ke)固(gu)定(ding)不(bu)動(dong)
，隻(zhi)是(shi)中(zhong)間(jian)加(jia)熱(re)管(guan)道(dao)組(zu)成(cheng)的(de)轉(zhuan)子(zi)轉(zhuan)動(dong)。可(ke)分(fen)為(wei)單(dan)轉(zhuan)子(zi)和(he)雙(shuang)轉(zhuan)子(zi)兩(liang)種(zhong)。轉(zhuan)子(zi)架(jia)在(zai)機(ji)殼(ke)的(de)空(kong)心(xin)軸(zhou)上(shang)，轉(zhuan)子(zi)由(you)兩(liang)個(ge)封(feng)頭(tou)和(he)鋼(gang)管(guan)組(zu)成(cheng)。從(cong)導(dao)管(guan)經(jing)過(guo)空(kong)心(xin)軸(zhou)及(ji)封(feng)頭(tou)往(wang)鋼(gang)管(guan)內(nei)注(zhu)入(ru)循(xun)環(huan)加(jia)熱(re)水(shui)或(huo)蒸(zheng)汽(qi)。在(zai)轉(zhuan)子(zi)上(shang)焊(han)有(you)幾(ji)個(ge)圓(yuan)環(huan)，在(zai)圓(yuan)環(huan)上(shang)再(zai)焊(han)幾(ji)根(gen)鋼(gang)杆(gan)
，鋼(gang)杆(gan)上(shang)有(you)葉(ye)片(pian)。鋼(gang)杆(gan)與(yu)轉(zhuan)子(zi)的(de)軸(zhou)線(xian)成(cheng)一(yi)定(ding)角(jiao)度(du)
，這(zhe)能(neng)保(bao)證(zheng)從(cong)進(jin)料(liao)口(kou)進(jin)入(ru)的(de)刨(pao)花(hua)往(wang)出(chu)料(liao)口(kou)出(chu)料(liao)。轉(zhuan)子(zi)上(shang)的(de)葉(ye)片(pian)推(tui)著(zhe)刨(pao)花(hua)沿(yan)著(zhe)烘(hong)幹(gan)機(ji)做(zuo)軸(zhou)向(xiang)移(yi)動(dong)
，並(bing)將(jiang)刨(pao)花(hua)帶(dai)起(qi)來(lai)撒(sa)在(zai)加(jia)熱(re)管(guan)上(shang)
，使(shi)刨(pao)花(hua)加(jia)熱(re)幹(gan)燥(zao)。在(zai)機(ji)殼(ke)上(shang)有(you)觀(guan)察(cha)孔(kong)、新鮮空氣補給孔和排濕孔
，以及清洗導管灰塵的管。
1.3帶有預熱裝置的Schilde烘幹機
    這zhe是shi一yi種zhong很hen經jing濟ji的de烘hong幹gan機ji，專zhuan用yong於yu幹gan燥zao刨pao花hua板ban芯xin層ceng的de顆ke粒li狀zhuang刨pao花hua，這zhe種zhong圓yuan筒tong式shi烘hong幹gan機ji在zai生sheng產chan中zhong已yi使shi用yong多duo年nian。該gai機ji在zai進jin料liao口kou設she有you預yu熱re裝zhuang置zhi
，濕shi刨pao花hua在zai金jin屬shu編bian織zhi的de傳chuan送song帶dai上shang緩huan慢man移yi動dong，將jiang烘hong幹gan機ji排pai出chu的de廢fei熱re氣qi引yin入ru預yu熱re裝zhuang置zhi的de底di部bu，利li用yong上shang升sheng的de熱re氣qi流liu穿chuan過guo傳chuan送song帶dai預yu熱re刨pao花hua，預yu熱re後hou的de刨pao花hua進jin入ru幹gan燥zao室shi。這zhe樣yang能neng保bao證zheng刨pao花hua的de初chu含han水shui率lv比bi較jiao均jun勻yun

，並bing防fang止zhi烘hong幹gan機ji內nei加jia熱re管guan外wai壁bi出chu現xian凝ning結jie水shui的de現xian象xiang。烘hong幹gan機ji的de進jin料liao口kou處chu有you分fen流liu板ban，可ke將jiang刨pao花hua均jun勻yun地di分fen配pei到dao加jia熱re區qu。轉zhuan子zi由you加jia熱re管guan及ji葉ye片pian組zu成cheng。轉zhuan子zi轉zhuan動dong
，使shi刨pao花hua連lian續xu移yi動dong。轉zhuan子zi的de轉zhuan速su用yong調tiao速su電dian機ji進jin行xing調tiao速su，幹gan燥zao時shi間jian根gen據ju刨pao花hua形xing狀zhuang、chuhanshuilvjizhonghanshuilvdebutongergaibian。ciwai
，ganzaoguochengzhongkeyongfengjitiaojiexuanzhuanpaohuayanzhouxiangchuidongdejuli，tongshihaiketiaojiepaichukongqiliangyubuchongxinxiankongqiliang，shizhixiangdeng。youyuyouleliyongfeiqidereliangjiareshipaohuazhuangzhi，conghaorelianglaikangaijibijiaojingji。
2、對流供熱和機械傳動幹燥
    對流供熱和機械傳動幹燥可分為多層帶式烘幹機

、爐氣加熱圓筒烘幹機
、振動篩式烘幹機
、盤式烘幹機和具有連續拋料裝置的Zwenkao烘幹機等。
2.1  多層帶式烘幹機
    shengchanliangjiaogaodepaohuabanchangganzaoxincengpaohuakeshiyongdaishihongganji。daishihongganjifenweisancenghewuceng。yousanzhiwutiaoshusongdaizucheng，shusongdaikeyongjinshuwangdaizhicheng，yekeyongjinshulvdaizucheng。xianglindeshusongdaizhuandongfangxiangxiangfan

，liangduanshijiaocuode
，shusongdaiyoudianjidaidong。paohuayouhongganjidedingbuluoruzuishangcengshusongdaideyiduan，zaishusongdaiyundongguochengzhong
，paohuacengcengxialuo，zuihouyouchuliaokoupaichu。paohuacongshangcengluoxiashi，nenggaibianpaohuaweizhi，shipaohuazairekongqizhongjunyunganzao。ganzaoshijiankegenjupaohuacengdehouduheshusongdaideyundongsuduerbian。yibanshangcengdaiyonggaosuyunxing，xiacengdaizhucengjiangdisudu，zuixiacengsuduzuiman
，paohuacengdeduijiliangyezuihou
，ganzaohoupaohuajibenwuposun。gaijidezhuyaoquedianshiwangdaishiwanggeyiniuquheposun，lingwaijiqizhongjingchangliuyoudaliangpaohua，rongyiyinqihuozai。
    ①Schilde三(san)層(ceng)帶(dai)式(shi)烘(hong)幹(gan)機(ji)。經(jing)過(guo)篩(shai)選(xuan)的(de)濕(shi)刨(pao)花(hua)均(jun)勻(yun)地(di)落(luo)到(dao)高(gao)速(su)運(yun)行(xing)的(de)最(zui)上(shang)層(ceng)輸(shu)送(song)帶(dai)上(shang)
，帶(dai)上(shang)的(de)濕(shi)刨(pao)花(hua)覆(fu)蓋(gai)層(ceng)最(zui)薄(bo)
，在(zai)熱(re)氣(qi)流(liu)最(zui)劇(ju)烈(lie)的(de)作(zuo)用(yong)下(xia)，水(shui)分(fen)傳(chuan)遞(di)處(chu)於(yu)最(zui)強(qiang)化(hua)的(de)階(jie)段(duan)。當(dang)刨(pao)花(hua)落(luo)至(zhi)中(zhong)層(ceng)，輸(shu)送(song)帶(dai)為(wei)中(zhong)速(su)運(yun)行(xing)。中(zhong)層(ceng)刨(pao)花(hua)落(luo)到(dao)底(di)層(ceng)帶(dai)上(shang)刨(pao)花(hua)呈(cheng)疏(shu)鬆(song)狀(zhuang)，底(di)層(ceng)帶(dai)運(yun)行(xing)速(su)度(du)最(zui)低(di)
，可(ke)保(bao)證(zheng)足(zu)夠(gou)的(de)時(shi)間(jian)使(shi)刨(pao)花(hua)完(wan)成(cheng)幹(gan)燥(zao)。帶(dai)上(shang)刨(pao)花(hua)堆(dui)積(ji)層(ceng)厚(hou)度(du)最(zui)大(da)


，能(neng)最(zui)大(da)限(xian)度(du)地(di)排(pai)除(chu)粉(fen)塵(chen)。
    ②Winkelmuller五wu層ceng帶dai式shi烘hong幹gan機ji。該gai烘hong幹gan機ji共gong五wu層ceng輸shu送song帶dai
，外wai形xing與yu三san層ceng烘hong幹gan機ji相xiang似si，最zui下xia層ceng為wei具ju有you刮gua板ban的de輸shu送song帶dai，刮gua板ban將jiang刨pao花hua運yun至zhi出chu口kou處chu。當dang刨pao花hua初chu含han水shui率lv為wei60%
、終含水率為5%時，排除1kg水分需要900kcal。
2.2爐氣加熱圓筒烘幹機
    zhezhonghongganjidewaixingyujiechujiareyuantonghongganjishifenxiangsi，yuantongliangduanyongzhichenglunzhicheng，youdianjidaidong
，shiyuantonghuizhuan。yuantongdeneibujiegoujiandan，meiyoujiareguan，zhizhuangyixiedaoxiangyepian，yuantongzhuandongshishipaohuaxiangchuliaokouyidong。zhezhonghongganjiqianduandaiyouranshaoshi
，yibanyongfeimucai
、鋸屑
、煤mei或huo油you作zuo燃ran料liao
，在zai燃ran燒shao室shi燃ran燒shao時shi產chan生sheng高gao溫wen氣qi體ti，與yu進jin入ru燃ran燒shao室shi的de冷leng空kong氣qi按an一yi定ding的de比bi例li混hun合he。通tong過guo兩liang道dao擋dang火huo牆qiang，可ke將jiang爐lu氣qi中zhong的de火huo星xing及ji灰hui塵chen除chu去qu，防fang止zhi火huo星xing進jin入ru烘hong幹gan機ji及ji炭tan粒li粘zhan汙wu刨pao花hua表biao麵mian。爐lu氣qi的de進jin口kou溫wen度du為wei300-400℃，以1-3m/s的氣流速度經過幹燥圓筒。從進料口進入圓筒的刨花與爐氣進行熱交換

，幹燥後的刨花從出料口排出
，出口溫度約200℃。feiluqikepairendaqizhonghuojingluqizaixunhuanzhuangzhisonghuiranshaoshi，jixuxunhuanshiyong。youdeshejiweilefangzhipaohuaranshao
，zairanshaoshineizengshefengliangzidongtiaojiezhuangzhi，keyigenjuganzaoyuantongneidewenduzidongtiaojiefengmendekaibichengdu
，zidongkongzhijinruranshaoshidelengkongqiliang，jinerzidongtiaojieluqiwendu，fangzhiwenduguogaoyinqipaohuaranshao
，yidadaoanquanshengchandemude。
2.3振動篩式烘幹機
    烘(hong)幹(gan)機(ji)內(nei)裝(zhuang)有(you)數(shu)層(ceng)篩(shai)子(zi)，振(zhen)動(dong)篩(shai)的(de)振(zhen)幅(fu)和(he)振(zhen)動(dong)頻(pin)率(lv)等(deng)對(dui)幹(gan)燥(zao)效(xiao)果(guo)有(you)影(ying)響(xiang)。刨(pao)花(hua)由(you)烘(hong)幹(gan)機(ji)上(shang)部(bu)的(de)錐(zhui)形(xing)進(jin)料(liao)口(kou)落(luo)至(zhi)振(zhen)動(dong)板(ban)上(shang)，通(tong)過(guo)振(zhen)動(dong)板(ban)的(de)振(zhen)動(dong)將(jiang)刨(pao)花(hua)拋(pao)起(qi)並(bing)向(xiang)前(qian)移(yi)動(dong)


，同(tong)時(shi)利(li)用(yong)熱(re)空(kong)氣(qi)通(tong)過(guo)刨(pao)花(hua)層(ceng)進(jin)行(xing)幹(gan)燥(zao)。該(gai)機(ji)具(ju)有(you)密(mi)封(feng)結(jie)構(gou)簡(jian)單(dan)、需要功率小


、易於觀察和幹燥質量較好等優點。
2.4盤式烘幹機
    盤式烘幹機的外形為立柱式
，它由加熱元件、產生氣流的渦輪
、duocengdaiyoukefandongshanxingbandehuanxingjiajidianjidengzucheng。gaijiyouchengwolunshihongganji。danghuanxingjiahuizhuanyizhoushi，fanzhuanyikuaishanxingban，banshangpaohuazhijieluoruxiayicengdeshanxingbanshang。rucilianxuyunxing，ganzaohoudepaohuayouchuliaokouguabanyunshujipaichu。zaishanxingbanfanzhuanluoliaodeguochengzhong，paohuadedaoqiliudejunyunjiare。huanxingjiadezhuansukegenjuzongdeganzaoshijianjinxingtiaojie。
2.5具有連續拋料裝置的Zwenkao烘幹機
    這(zhe)種(zhong)烘(hong)幹(gan)機(ji)較(jiao)為(wei)經(jing)濟(ji)，它(ta)利(li)用(yong)了(le)生(sheng)產(chan)中(zhong)的(de)煙(yan)氣(qi)。水(shui)平(ping)煙(yan)道(dao)將(jiang)煙(yan)氣(qi)吸(xi)出(chu)與(yu)帶(dai)有(you)新(xin)鮮(xian)空(kong)氣(qi)的(de)支(zhi)管(guan)連(lian)接(jie)，通(tong)過(guo)烘(hong)幹(gan)機(ji)長(chang)度(du)方(fang)向(xiang)上(shang)的(de)很(hen)多(duo)小(xiao)孔(kong)
，將(jiang)溫(wen)度(du)達(da)200C的氣體引入機內。刨花進入烘幹機內，依靠轉速為8-20r/min的片狀軸將刨花不斷翻動和向前移動。風機和旋轉軸由電機驅動。
3、對流供熱和氣流傳動幹燥
    對流供熱和氣流傳動幹燥可分為三級圓筒氣流烘幹機、懸浮式氣流烘幹機
、管道式氣流烘幹機
、噴氣式烘幹機、回轉噴氣式烘幹機、Bronswerk烘幹機及螺旋運輸式烘幹機等。
3.1三級圓筒氣流烘幹機
    這種烘幹機主要由燃燒室
、筒體及排氣部分等組成。燃燒室以天然煤氣、油類、木mu粉fen塵chen或huo上shang述shu的de混hun合he物wu為wei燃ran料liao，產chan生sheng的de熱re氣qi體ti為wei幹gan燥zao介jie質zhi。簡jian體ti由you三san層ceng同tong心xin圓yuan筒tong組zu成cheng。熱re氣qi體ti在zai三san個ge同tong心xin圓yuan筒tong之zhi間jian進jin行xing三san個ge循xun環huan
，這zhe樣yang就jiu縮suo短duan了le烘hong幹gan機ji的de總zong長chang度du。該gai氣qi流liu烘hong幹gan機ji的de工gong作zuo原yuan理li如ru下xia：濕刨花首先進入內層筒即直徑最小的圓筒），與yu高gao溫wen的de熱re氣qi流liu直zhi接jie接jie觸chu，熱re量liang傳chuan遞di到dao刨pao花hua主zhu要yao依yi靠kao氣qi流liu的de對dui流liu作zuo用yong
，可ke使shi用yong較jiao高gao空kong氣qi溫wen度du和he速su度du，刨pao花hua表biao麵mian水shui分fen蒸zheng發fa處chu於yu等deng速su幹gan燥zao階jie段duan。刨pao花hua在zai氣qi流liu的de作zuo用yong下xia
，依yi次ci進jin入ru中zhong層ceng筒tong和he外wai層cengk即直徑最大的圓筒）。在(zai)中(zhong)層(ceng)筒(tong)和(he)外(wai)層(ceng)筒(tong)內(nei)使(shi)用(yong)較(jiao)慢(man)的(de)空(kong)氣(qi)速(su)度(du)和(he)中(zhong)等(deng)溫(wen)度(du)，刨(pao)花(hua)的(de)水(shui)分(fen)蒸(zheng)發(fa)處(chu)於(yu)減(jian)速(su)幹(gan)燥(zao)階(jie)段(duan)。熱(re)空(kong)氣(qi)的(de)速(su)度(du)隨(sui)著(zhe)不(bu)同(tong)溫(wen)度(du)和(he)筒(tong)徑(jing)而(er)變(bian)化(hua)。如(ru)果(guo)幹(gan)燥(zao)生(sheng)材(cai)製(zhi)得(de)的(de)廢(fei)料(liao)刨(pao)花(hua)時(shi)
，入(ru)口(kou)最(zui)高(gao)溫(wen)度(du)為(wei)650-760℃
，三個圓筒由小到大的進口速度依次為498
、195和98m／min。當幹燥相對幹的刨花時，入口溫度應降低到260-316℃。排氣部分通常由1台或2台風機組成。空氣壓力既可采用正壓，也可采用負壓。正壓時，風機安裝在烘幹機與旋風分離器之間：fengjianzhuangzaixuanfengfenliqiwaiceshixingchengfuya，fuyaxitongdeyoudianshipaohuabutongguofengji，paohuadeposunlvjiaodi，lingwaifengjidexuanzhuanyelunmosunjiaoxiao。dianzikongzhixitongzhuyaobaokuoredianouwendukongzhiyihegaowenredianoujiluyi。tamenanzhuangzaiganzaotongyufengjizhijian
，redianouwendukongzhiyiyongyucedinghongganjiguntongmoduanchukouchudeqitiwendu。dangchukouwenduchaoguomougeyuxiantiaohaodezhishi，gaoxianexitongzidongjiangzhenggeganzaogongxutingxialai。redianoudegaowenzhishiqianzhuangzairanshaoshiyuganzaotongzhijian。zhezhonghongganjiderukouwendudougaoyumucairandianyuewei230℃左右），但由於高溫熱氣流運行速度較高，刨花幹燥過程能迅速完成
，同時刨花在烘幹機內停留時間極短
，所以一般不會發生火災事故。
    與此相類似的烘幹機還有兩級和單級圓筒氣流烘幹機。
3.2  懸浮式氣流烘幹機
    這(zhe)種(zhong)類(lei)型(xing)的(de)烘(hong)幹(gan)機(ji)主(zhu)要(yao)用(yong)適(shi)當(dang)速(su)度(du)的(de)氣(qi)流(liu)使(shi)刨(pao)花(hua)呈(cheng)懸(xuan)浮(fu)狀(zhuang)態(tai)
，這(zhe)樣(yang)刨(pao)花(hua)表(biao)麵(mian)充(chong)分(fen)暴(bao)露(lu)在(zai)高(gao)溫(wen)氣(qi)流(liu)中(zhong)進(jin)行(xing)幹(gan)燥(zao)。有(you)的(de)烘(hong)幹(gan)機(ji)對(dui)懸(xuan)浮(fu)狀(zhuang)態(tai)的(de)刨(pao)花(hua)還(hai)具(ju)有(you)良(liang)好(hao)的(de)分(fen)選(xuan)效(xiao)果(guo)。
    ①單dan層ceng懸xuan浮fu式shi烘hong幹gan機ji。濕shi刨pao花hua經jing進jin料liao閥fa沿yan著zhe管guan道dao進jin入ru幹gan燥zao室shi。攪jiao拌ban器qi由you電dian機ji並bing通tong過guo減jian速su器qi帶dai動dong
，它ta使shi堆dui積ji的de刨pao花hua均jun勻yun地di鋪pu在zai篩shai網wang的de表biao麵mian。新xin鮮xian空kong氣qi進jin入ru加jia熱re器qi，用yong熱re水shui加jia熱re到dao185C。熱re空kong氣qi從cong幹gan燥zao室shi底di部bu進jin入ru，流liu量liang可ke用yong節jie流liu閥fa調tiao節jie。熱re空kong氣qi的de流liu速su應ying使shi幹gan燥zao的de輕qing刨pao花hua都dou流liu過guo管guan道dao，經jing分fen離li器qi底di部bu排pai出chu，用yong運yun輸shu機ji送song至zhi料liao倉cang。較jiao大da的de刨pao花hua不bu能neng在zai空kong氣qi中zhong懸xuan浮fu
，落luo在zai篩shai網wang上shang幹gan燥zao。用yong攪jiao拌ban器qi推tui動dong刨pao花hua向xiang篩shai網wang邊bian部bu移yi動dong
，最zui後hou進jin入ru管guan道dao，經jing排pai料liao閥fa卸xie載zai到dao運yun輸shu帶dai上shang
，送song往wang芯xin層ceng幹gan刨pao花hua料liao倉cang。鼓gu風feng機ji使shi幹gan燥zao室shi內nei的de空kong氣qi流liu動dong。刨pao花hua的de終zhong含han水shui率lv主zhu要yao取qu決jue於yu進jin入ru幹gan燥zao室shi的de熱re空kong氣qi溫wen度du，該gai空kong氣qi溫wen度du由you溫wen度du計ji自zi動dong調tiao節jie。用yong電dian機ji控kong製zhi閥fa門men
，以yi調tiao節jie加jia熱re用yong的de熱re水shui流liu量liang。此ci外wai，還hai要yao測ce量liang烘hong幹gan機ji出chu口kou處chu溫wen度du
、幹燥室空氣壓力以及篩網上的空氣溫度和壓力。
    ②shuangcengxuanfushihongganji。qiyoudancenghongganjifazhanerlai，youshangxialiangcengganzaoshizucheng。shangxialiangcenghengduanmianzhijingkeyiyiyang，yekeyibutong。gaijishiyongyuhanshuilvjiaogaodepaohua。shiliaocongjinliaokoujingfajinrushangcengganzaoshi，qingdepaohuazaishangcengganzaoshineiwanquanbeiganzao，bingyufenchendengyiqibeifengjisongruganpaohuadexuanfengfenliqi，youcizaisongwangfenxuanshebei
，yibianjiangpaohuahefenchenfenkai，zuoweibiaocengpaohuashiyong。qiyupaohuazaijinruxiacengganzaoshi
，jixujinxingganzao。ganpaohuayongfengjisongruxuanfengfenliqi，jiaocupaohuajingpailiaoqipaichu，zuoweixincengpaohua。
3.3管道式氣流烘幹機
    這是一種產量較高的烘幹機
，刨花靠高速氣流在管道內輸送，同時進行幹燥。單級烘幹機一般使用400-500℃的熱空氣進行幹燥
，從烘幹機排出的氣體溫度不超過1000℃。有的單級管道長達60餘米
，直徑為1.37m。單級管道式氣流烘幹機的缺點是幹燥後的刨花有部分終含水率不均．這可采用多級幹燥來消除。生產表明，二級幹燥就能達到較好效果。二級烘幹機管道總長120餘米，管道分為兩段
，幹燥過程也分為兩步。第一級幹燥稱為預幹燥，使用較高溫度，約200-316℃；第二級稱為主幹燥階段，使用較低溫度，為38-82℃。
    多級烘幹機在燃燒室產生熱氣體，氣流溫度一般為400-450℃。需xu要yao幹gan燥zao的de刨pao花hua通tong過guo進jin料liao口kou進jin入ru烘hong幹gan機ji，在zai熱re氣qi流liu的de作zuo用yong下xia沿yan上shang升sheng管guan道dao上shang升sheng
，到dao達da分fen離li彎wan管guan處chu
，將jiang刨pao花hua進jin行xing局ju部bu分fen離li
，一yi部bu分fen細xi碎sui刨pao化hua及ji粉fen塵chen進jin入ru回hui氣qi管guan，經jing旋xuan風feng分fen離li器qi分fen離li，用yong螺luo旋xuan輸shu送song機ji將jiang粉fen塵chen等deng排pai出chu。而er大da量liang刨pao花hua經jing下xia降jiang管guan道dao送song入ru二er級ji幹gan燥zao係xi統tong
，繼ji而er進jin入ru三san級ji幹gan燥zao係xi統tong，幹gan燥zao好hao的de優you質zhi刨pao花hua
，最zui後hou到dao達da三san級ji循xun環huan幹gan燥zao係xi統tong的de末mo端duan，在zai排pai料liao口kou處chu排pai出chu。該gai機ji能neng有you效xiao地di幹gan燥zao刨pao花hua和he除chu去qu細xi碎sui刨pao花hua及ji粉fen塵chen，刨pao花hua完wan整zheng性xing好hao，設she備bei占zhan地di麵mian積ji小xiao，熱re效xiao率lv高gao，幹gan燥zao成cheng本ben低di。
3.4  噴氣式烘幹機
    噴pen氣qi式shi烘hong幹gan機ji屬shu於yu水shui平ping固gu定ding式shi烘hong幹gan機ji。它ta利li用yong旋xuan轉zhuan流liu動dong層ceng幹gan燥zao的de原yuan理li進jin行xing幹gan燥zao。濕shi料liao進jin入ru固gu定ding筒tong體ti的de一yi端duan
，在zai筒tong體ti底di部bu形xing成cheng物wu料liao層ceng。熱re空kong氣qi經jing過guo筒tong體ti縱zong向xiang排pai列lie的de噴pen嘴zui進jin入ru筒tong體ti，這zhe使shi熱re空kong氣qi成cheng切qie線xian方fang向xiang進jin入ru幹gan燥zao筒tong體ti內nei，物wu料liao在zai筒tong內nei一yi麵mian旋xuan轉zhuan一yi麵mian向xiang前qian運yun動dong。為wei了le防fang止zhi刨pao花hua集ji結jie，可ke用yong旋xuan轉zhuan齒chi耙pa耙pa鬆song。已yi幹gan物wu料liao經jing過guo風feng機ji，從cong旋xuan風feng分fen離li器qi底di部bu排pai出chu。熱re空kong氣qi可ke回hui到dao加jia熱re裝zhuang置zhi繼ji續xu使shi用yong
，這zhe樣yang大da部bu分fen的de熱re量liang保bao留liu在zai烘hong幹gan機ji內nei
，采cai用yong這zhe種zhong封feng閉bi式shi空kong氣qi循xun環huan係xi統tong熱re效xiao率lv高gao。這zhe種zhong烘hong幹gan機ji主zhu要yao控kong製zhi安an裝zhuang在zai筒tong底di空kong氣qi進jin口kou處chu噴pen嘴zui內nei形xing成cheng縫feng隙xi的de葉ye片pian
，從cong而er決jue定ding熱re介jie質zhi在zai筒tong內nei旋xuan轉zhuan角jiao度du及ji物wu料liao向xiang前qian運yun動dong的de速su度du，以yi此ci可ke十shi分fen精jing確que地di調tiao整zheng刨pao花hua在zai筒tong內nei停ting留liu的de時shi間jian。使shi用yong這zhe種zhong裝zhuang置zhi，可ke以yi根gen據ju刨pao花hua的de不bu同tong樹shu種zhong
、不(bu)同(tong)含(han)水(shui)率(lv)和(he)不(bu)同(tong)形(xing)狀(zhuang)

，采(cai)取(qu)不(bu)同(tong)的(de)幹(gan)燥(zao)時(shi)間(jian)。如(ru)果(guo)幹(gan)燥(zao)較(jiao)大(da)規(gui)格(ge)的(de)刨(pao)花(hua)，使(shi)它(ta)移(yi)動(dong)速(su)度(du)減(jian)慢(man)，延(yan)長(chang)幹(gan)燥(zao)時(shi)間(jian)。反(fan)之(zhi)，細(xi)小(xiao)刨(pao)花(hua)能(neng)較(jiao)快(kuai)通(tong)過(guo)，縮(suo)短(duan)幹(gan)燥(zao)時(shi)間(jian)。這(zhe)種(zhong)類(lei)型(xing)烘(hong)幹(gan)機(ji)根(gen)據(ju)加(jia)熱(re)方(fang)式(shi)分(fen)為(wei)直(zhi)接(jie)加(jia)熱(re)式(shi)和(he)間(jian)接(jie)加(jia)熱(re)式(shi)兩(liang)種(zhong)。直(zhi)接(jie)加(jia)熱(re)式(shi)烘(hong)幹(gan)機(ji)使(shi)用(yong)煤(mei)氣(qi)或(huo)油(you)作(zuo)燃(ran)料(liao)，也(ye)可(ke)使(shi)用(yong)木(mu)屑(xie)與(yu)油(you)的(de)混(hun)合(he)燃(ran)料(liao)。這(zhe)種(zhong)烘(hong)幹(gan)機(ji)工(gong)作(zuo)時(shi)入(ru)口(kou)溫(wen)度(du)為(wei)370-400℃，加熱介質可循環使用。另一種是用蒸汽、熱水或熱油的間接加熱噴氣烘幹機。這種烘幹機的熱空氣不能再循環使用，工作時入口溫度為160-188℃。
3.5  回轉噴氣式烘幹機
    該(gai)機(ji)具(ju)有(you)分(fen)選(xuan)作(zuo)用(yong)。錐(zhui)形(xing)噴(pen)管(guan)在(zai)絕(jue)緣(yuan)性(xing)能(neng)良(liang)好(hao)的(de)圓(yuan)筒(tong)形(xing)幹(gan)燥(zao)室(shi)內(nei)回(hui)轉(zhuan)，濕(shi)刨(pao)花(hua)經(jing)回(hui)轉(zhuan)閥(fa)進(jin)入(ru)幹(gan)燥(zao)室(shi)，幹(gan)刨(pao)花(hua)通(tong)過(guo)回(hui)轉(zhuan)閥(fa)排(pai)出(chu)。適(shi)當(dang)地(di)調(tiao)整(zheng)噴(pen)嘴(zui)角(jiao)度(du)

，就(jiu)能(neng)使(shi)刨(pao)花(hua)從(cong)進(jin)料(liao)回(hui)轉(zhuan)閥(fa)到(dao)出(chu)料(liao)口(kou)，圍(wei)繞(rao)並(bing)沿(yan)著(zhe)回(hui)轉(zhuan)錐(zhui)形(xing)噴(pen)管(guan)的(de)周(zhou)圍(wei)形(xing)成(cheng)螺(luo)旋(xuan)狀(zhuang)刨(pao)花(hua)流(liu)。葉(ye)片(pian)可(ke)使(shi)刨(pao)花(hua)產(chan)生(sheng)漩(xuan)渦(wo)和(he)升(sheng)力(li)，粗(cu)刨(pao)花(hua)在(zai)回(hui)轉(zhuan)錐(zhui)形(xing)噴(pen)管(guan)的(de)末(mo)端(duan)通(tong)過(guo)出(chu)料(liao)口(kou)排(pai)出(chu)。在(zai)出(chu)口(kou)端(duan)

，薄(bo)而(er)輕(qing)的(de)刨(pao)花(hua)首(shou)先(xian)由(you)氣(qi)流(liu)帶(dai)至(zhi)旋(xuan)風(feng)分(fen)離(li)器(qi)，隨(sui)後(hou)是(shi)較(jiao)厚(hou)的(de)刨(pao)花(hua)，經(jing)旋(xuan)風(feng)分(fen)離(li)器(qi)分(fen)離(li)出(chu)來(lai)的(de)刨(pao)花(hua)
，由(you)回(hui)轉(zhuan)閥(fa)排(pai)出(chu)。燃(ran)燒(shao)室(shi)內(nei)通(tong)常(chang)是(shi)用(yong)油(you)或(huo)油(you)和(he)木(mu)屑(xie)作(zuo)原(yuan)料(liao)
，熱(re)氣(qi)體(ti)依(yi)靠(kao)風(feng)機(ji)與(yu)濕(shi)回(hui)流(liu)氣(qi)體(ti)相(xiang)混(hun)合(he)
，而(er)一(yi)部(bu)分(fen)回(hui)流(liu)氣(qi)體(ti)經(jing)排(pai)氣(qi)管(guan)排(pai)出(chu)

，另(ling)一(yi)部(bu)分(fen)回(hui)流(liu)氣(qi)體(ti)起(qi)分(fen)選(xuan)的(de)作(zuo)用(yong)。該(gai)機(ji)熱(re)效(xiao)率(lv)高(gao)
，幹(gan)燥(zao)時(shi)間(jian)短(duan)。
3.6Bronswerk烘幹機
    這種烘幹機的工作原理如下：由(you)燃(ran)燒(shao)室(shi)產(chan)生(sheng)熱(re)氣(qi)體(ti)，利(li)用(yong)風(feng)機(ji)送(song)入(ru)混(hun)合(he)燃(ran)燒(shao)室(shi)
，與(yu)重(zhong)複(fu)循(xun)環(huan)回(hui)氣(qi)相(xiang)混(hun)合(he)，回(hui)氣(qi)由(you)風(feng)機(ji)循(xun)環(huan)送(song)入(ru)。在(zai)混(hun)合(he)燃(ran)燒(shao)室(shi)內(nei)
，任(ren)何(he)殘(can)留(liu)的(de)塵(chen)屑(xie)均(jun)被(bei)燃(ran)燒(shao)完(wan)畢(bi)。熱(re)氣(qi)體(ti)進(jin)入(ru)幹(gan)燥(zao)室(shi)
，刨(pao)花(hua)通(tong)過(guo)回(hui)轉(zhuan)閥(fa)進(jin)入(ru)幹(gan)燥(zao)室(shi)，利(li)用(yong)徑(jing)向(xiang)機(ji)構(gou)和(he)可(ke)調(tiao)軸(zhou)向(xiang)氣(qi)流(liu)機(ji)構(gou)之(zhi)間(jian)的(de)相(xiang)互(hu)協(xie)調(tiao)動(dong)作(zuo)
，在(zai)圓(yuan)筒(tong)形(xing)幹(gan)燥(zao)室(shi)內(nei)形(xing)成(cheng)螺(luo)旋(xuan)狀(zhuang)氣(qi)流(liu)。烘(hong)幹(gan)機(ji)的(de)第(di)一(yi)部(bu)分(fen)僅(jin)用(yong)於(yu)幹(gan)燥(zao)，而(er)第(di)二(er)部(bu)分(fen)既(ji)用(yong)於(yu)幹(gan)燥(zao)，又(you)用(yong)作(zuo)刨(pao)花(hua)的(de)分(fen)級(ji)
，經(jing)過(guo)幹(gan)燥(zao)分(fen)離(li)的(de)標(biao)準(zhun)刨(pao)花(hua)通(tong)過(guo)回(hui)轉(zhuan)閥(fa)排(pai)出(chu)。幹(gan)燥(zao)室(shi)出(chu)來(lai)的(de)大(da)量(liang)熱(re)空(kong)氣(qi)，除(chu)利(li)用(yong)風(feng)機(ji)反(fan)複(fu)循(xun)環(huan)使(shi)用(yong)外(wai)，還(hai)必(bi)須(xu)通(tong)過(guo)排(pai)氣(qi)口(kou)排(pai)放(fang)一(yi)部(bu)分(fen)。
3.7螺旋運輸式烘幹機
    shipaohuazaijinliaokoujinruliaocang，jingguodingliangzhouchengshusongzhuangtailuozaihuizhuanfashangyureqiliuhunhe，anhegepaohuaxingtaitiaojieqiliushangshengsudu，dapaohualuozailuoxuanshusongjishangpaichu，hegepaohuasuireqiliujingguandaoxiangshangyundongzhidingbu，zaijinruxiangxiaguandaozhong，paohuayanzhehuxingdangbanxiangxialiudong。youzhexiedangbanxingchengdeqiangliwoliushipaohuaheqiliujinyibuhunhe
，dadaoganzaodemude。ganpaohuazuihouluozaiwangdaishusongjishang，jiangpaohuasongzhichukouchu。weilejingchangqingchuhongganjidibudexisuipaohua
，sheyouzhuanyongdeguabanyunshuji。kongqixunhuanxitongyongshuangxianglixinshifengjijiangqiliusongzhijiareqizhongzhongxinjiare
，feiqijibufenfenchenyoupaiqiguanpaichu
，fenchenyekeyouluoxuanyunshujipaichu。gaijijuyoujiaohaodefenxuanxiaoguo，yibanshiyongzhezhonghongganjihou，buxuyaozaishezhizhuanmendefenxuanshebei。
4、小結
    刨花的幹燥是刨花板生產中的重要工序之一。刨花幹燥質量的好壞、nenghaodegaodi
，doujiangyingxiangdaochanpindexingnengjiqichengben。paohuaganzaoshipaohuabanshengchanguochengzhongxiaohaorenengzuiduodegongxu，shengchanpaohuabansuohaoyongdezongrenengzhong

，yueyou60%-70%是用於刨花幹燥。因此，深人了解各種刨花幹燥方法是提高刨花幹燥質量、節約能源的重要措施。刨花幹燥必須根據原材料的初含水率、刨花的幾何形狀
、幹燥工藝、幹gan燥zao產chan量liang等deng來lai選xuan擇ze合he適shi的de幹gan燥zao方fang法fa。應ying在zai保bao證zheng刨pao花hua幹gan燥zao質zhi量liang的de前qian提ti下xia，綜zong合he考kao慮lv各ge種zhong幹gan燥zao方fang法fa的de優you缺que點dian，結jie合he本ben企qi業ye的de實shi際ji情qing況kuang
，最zui終zhong確que定ding合he適shi的de幹gan燥zao方fang法fa。總zong之zhi
，刨pao花hua幹gan燥zao方fang法fa將jiang向xiang自zi動dong化hua、高效節能的方向發展。
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