1、原料因素
原yuan料liao因yin素su直zhi接jie影ying響xiang製zhi粒li的de效xiao果guo,澱dian粉fen含han量liang較jiao高gao的de物wu料liao易yi被bei蒸zheng汽qi糊hu化hua,這zhe些xie原yuan料liao經jing過guo調tiao質zhi後hou,有you一yi定ding的de粘zhan性xing,有you利li於yu顆ke粒li的de成cheng形xing。對dui粗cu纖xian維wei含han量liang高gao的de原yuan料liao,添tian加jia一yi定ding量liang的de油you脂zhi,在zai製zhi粒li時shi可ke以yi減jian少shao物wu料liao與yu環huan模mo之zhi間jian的de摩mo擦ca力li,有you利li於yu物wu料liao通tong過guo環huan模mo,且qie成cheng形xing後hou顆ke粒li外wai觀guan較jiao光guang滑hua。一yi般ban添tian加jia量liang1%zuoyou,tianjialiangguogao,rongyizaochengkelisongsan,ruguoxuyaotianjiajiaoduoyouzhi,keyikaolvzhilihoupentu,tebieshiyongyushengchangaonengliangdesiliao。fensuiyuanliaolidujuedingzhesiliaozuchengdebiaomianji,liduyuexi,biaomianjiyueda,wuliaoxishouzhengqizhongshuifenyuekuai,liyuwuliaotiaozhi,yeyizhilichengxing。congzhilijiaodulaijiang,fensuixi,zhiliqiangdugao,danjiazhengqiduo,shaobuliuyiyiyuduji,qieyuanliaofensuiguoxi,zaochengfensuidianhaoguogao。liduguocu,zengjiahuanmoheyagundemosun,zhilichengxingkunnan,youqishixiaokongjinghuanmochengxinggengnan,bingzaochengwuliaohuhuaxiaoguocha,daozhiwuhaogao、產量低、顆粒含粉率高。因此,通常生產畜禽飼料,粉碎玉米宜采用2.5~3.0mm篩(shai)板(ban),既(ji)能(neng)避(bi)免(mian)粒(li)度(du)過(guo)細(xi)的(de)弊(bi)端(duan),又(you)保(bao)證(zheng)飼(si)料(liao)充(chong)分(fen)調(tiao)質(zhi)所(suo)需(xu)的(de)粒(li)度(du),利(li)於(yu)減(jian)少(shao)顆(ke)粒(li)的(de)含(han)粉(fen)率(lv)。另(ling)外(wai)要(yao)注(zhu)重(zhong)製(zhi)粒(li)前(qian)的(de)混(hun)合(he)均(jun)勻(yun)度(du),因(yin)為(wei)飼(si)料(liao)配(pei)方(fang)組(zu)成(cheng)複(fu)雜(za),各(ge)種(zhong)原(yuan)料(liao)比(bi)重(zhong)差(cha)異(yi)較(jiao)大(da),對(dui)於(yu)不(bu)同(tong)配(pei)方(fang)、不同品種,采用不同的混合時間,使混合均勻度變異係數達到5%左右,給後麵製粒工序奠定良好基礎。
2、進料流量控製
weileshikelijibutingdundijunhengdimanfuhegongzuo,bixushijinrukelijiweiliaoqidewuliaoliuliangmanzuzhilixuyao,jinliaojiegouyaoyouxiaodixiaochuyinjiekuaierzaochengdejinliaoshiduanshixudexianxiang。yiSZLH40顆粒機為例,料流量不應小於10t/h,要(yao)在(zai)實(shi)際(ji)生(sheng)產(chan)中(zhong)通(tong)過(guo)調(tiao)整(zheng)喂(wei)料(liao)器(qi)轉(zhuan)速(su)來(lai)控(kong)製(zhi)實(shi)際(ji)進(jin)料(liao)量(liang)。為(wei)了(le)確(que)保(bao)進(jin)入(ru)喂(wei)料(liao)器(qi)的(de)料(liao)流(liu)穩(wen)定(ding),比(bi)較(jiao)合(he)理(li)的(de)是(shi)在(zai)顆(ke)粒(li)機(ji)上(shang)方(fang)直(zhi)接(jie)裝(zhuang)一(yi)緩(huan)衝(chong)倉(cang),如(ru)果(guo)不(bu)設(she)置(zhi)該(gai)緩(huan)衝(chong)倉(cang),或(huo)者(zhe)緩(huan)衝(chong)倉(cang)與(yu)喂(wei)料(liao)器(qi)之(zhi)間(jian)有(you)較(jiao)長(chang)連(lian)管(guan)(0.5m以上),jiunanyibaozhenglaikeliuliangwending。xuduosiliaochangzaikelijishengchanlvbuzhengchangshi,zhishimangyuzaikelijibenshenzhaoyuanyin,erhushilelailiaoyinsu,shijishanghenduoshihoushengchanlvxiajiangshiyoulailiaoliuliangbuwendingerzaochengde。yibanlaishuo,dangkelijiyunzhuanpingwenzhengchang,zhengqigongyingchongfen,jinliaozhamenquanbudakai,weiliaoqizhuansutiaodaoedingzhierzhudianjigongzuoqueshizhongdabudaoedingdianzhishi,jikepanduanlailiaoliuliangbuzu,zheshiyingzhamingyuanyin,bianzhengshizhi。
3、蒸汽質量控製
使(shi)用(yong)蒸(zheng)汽(qi)製(zhi)粒(li)能(neng)有(you)效(xiao)地(di)提(ti)高(gao)顆(ke)粒(li)機(ji)產(chan)量(liang)和(he)改(gai)善(shan)顆(ke)粒(li)品(pin)質(zhi)。蒸(zheng)汽(qi)是(shi)調(tiao)質(zhi)時(shi)水(shui)分(fen)舔(tian)加(jia)的(de)來(lai)源(yuan),是(shi)飼(si)料(liao)中(zhong)澱(dian)粉(fen)糊(hu)化(hua)的(de)熱(re)源(yuan)。在(zai)調(tiao)質(zhi)過(guo)程(cheng)中(zhong)添(tian)加(jia)一(yi)定(ding)量(liang)蒸(zheng)汽(qi),既(ji)可(ke)殺(sha)滅(mie)飼(si)料(liao)中(zhong)一(yi)部(bu)分(fen)細(xi)菌(jun),又(you)可(ke)以(yi)稀(xi)釋(shi)飼(si)料(liao)中(zhong)天(tian)然(ran)粘(zhan)結(jie)劑(ji),使(shi)物(wu)料(liao)中(zhong)的(de)每(mei)一(yi)微(wei)粒(li)外(wai)部(bu)形(xing)成(cheng)一(yi)層(ceng)薄(bo)薄(bo)的(de)含(han)水(shui)層(ceng),利(li)於(yu)物(wu)料(liao)糊(hu)化(hua),便(bian)於(yu)製(zhi)粒(li),從(cong)而(er)改(gai)善(shan)了(le)顆(ke)粒(li)飼(si)料(liao)質(zhi)量(liang)。正(zheng)確(que)的(de)蒸(zheng)汽(qi)管(guan)道(dao)設(she)計(ji)既(ji)要(yao)保(bao)證(zheng)蒸(zheng)汽(qi)壓(ya)力(li)與(yu)流(liu)量(liang),又(you)要(yao)有(you)效(xiao)地(di)防(fang)止(zhi)管(guan)道(dao)中(zhong)的(de)冷(leng)凝(ning)水(shui)進(jin)入(ru)調(tiao)質(zhi)器(qi)。汽(qi)包(bao)應(ying)盡(jin)量(liang)靠(kao)近(jin)顆(ke)粒(li)機(ji)以(yi)提(ti)高(gao)蒸(zheng)汽(qi)質(zhi)量(liang),因(yin)為(wei)蒸(zheng)汽(qi)質(zhi)量(liang)對(dui)顆(ke)粒(li)機(ji)至(zhi)關(guan)重(zhong)要(yao),純(chun)度(du)不(bu)夠(gou)的(de)蒸(zheng)汽(qi)將(jiang)導(dao)致(zhi)顆(ke)粒(li)機(ji)堵(du)塞(sai)或(huo)產(chan)生(sheng)不(bu)符(fu)合(he)要(yao)求(qiu)的(de)飼(si)料(liao),並(bing)容(rong)易(yi)出(chu)現(xian)一(yi)係(xi)列(lie)故(gu)障(zhang)。適(shi)合(he)的(de)飽(bao)和(he)蒸(zheng)汽(qi)壓(ya)力(li)應(ying)為(wei)0.2~0. 4MPa壓力過低時,在固定的調質時間達不到調質指標;壓力過高時,蒸汽溫度也高,蒸汽通過調質器對物料的熱傳導加溫增強,容易造成物料溫度高、水分低、局部物料燒焦等,影響製粒質量。要保證蒸汽壓力始終達到穩定,壓力波動幅度一般不應大於0. 05MPa,而蒸汽壓力與蒸汽管路係統的設計和正確安裝是分不開的:一般原料調質前含水分12%左(zuo)右(you),蒸(zheng)汽(qi)壓(ya)力(li)高(gao)含(han)水(shui)分(fen)少(shao),因(yin)此(ci),低(di)水(shui)分(fen)物(wu)料(liao)可(ke)選(xuan)壓(ya)力(li)低(di)些(xie)的(de)蒸(zheng)汽(qi),采(cai)用(yong)濕(shi)蒸(zheng)汽(qi),這(zhe)樣(yang)製(zhi)粒(li)質(zhi)量(liang)好(hao),耐(nai)碎(sui)率(lv)高(gao)。如(ru)果(guo)是(shi)高(gao)水(shui)分(fen)物(wu)料(liao),則(ze)選(xuan)壓(ya)力(li)較(jiao)高(gao)的(de)蒸(zheng)汽(qi).采用高壓幹飽和蒸汽。而調質後水分大於16. 5%時,製出的顆粒含水分高,不容易長時間保管;調質後水分低於15%時,製粒電耗多,耐碎率低。調質溫度是和蒸汽壓力、蒸汽用量緊密相關的,也是隨季節變化的。一般畜禽飼料調質溫度在85℃左右,冬季室溫低+調tiao質zhi溫wen度du低di一yi些xie,夏xia季ji室shi溫wen高gao,調tiao質zhi溫wen度du高gao些xie。蒸zheng汽qi壓ya力li高gao,物wu料liao吸xi收shou的de蒸zheng汽qi量liang少shao,而er糊hu化hua差cha,適shi合he於yu含han水shui分fen高gao的de物wu料liao。蒸zheng汽qi壓ya力li低di,物wu料liao吸xi收shou的de蒸zheng汽qi量liang多duo,吸xi收shou水shui分fen也ye多duo,糊hu化hua好hao,適shi合he於yu含han水shui分fen低di的de物wu料liao。
4、生產操作
正確控製壓輥與壓模的間隙。輥模間隙太小,壓模與壓輥容易磨損,並且噪音大;間隙太大,則影響物料擠壓。一般應根據製粒直徑大小來調整,間隙控製在0. 05~0.30mm。調(tiao)整(zheng)時(shi)可(ke)用(yong)塞(sai)尺(chi)測(ce)量(liang),無(wu)塞(sai)尺(chi)目(mu)測(ce)也(ye)可(ke)以(yi)。以(yi)新(xin)模(mo)新(xin)輥(gun)為(wei)例(li),目(mu)測(ce)壓(ya)模(mo)壓(ya)輥(gun)似(si)靠(kao)非(fei)靠(kao),但(dan)無(wu)物(wu)料(liao)時(shi)主(zhu)機(ji)轉(zhuan)動(dong)壓(ya)模(mo)不(bu)能(neng)帶(dai)動(dong)壓(ya)輥(gun)為(wei)宜(yi),特(te)別(bie)強(qiang)調(tiao)新(xin)模(mo)應(ying)配(pei)新(xin)輥(gun),間(jian)隙(xi)宜(yi)小(xiao)些(xie),另(ling)外(wai)壓(ya)輥(gun)要(yao)加(jia)足(zu)黃(huang)油(you)(通常選用耐高溫7號鋰基脂),避bi免mian因yin溫wen度du過guo高gao燒shao壞huai軸zhou承cheng。同tong時shi也ye要yao對dui喂wei料liao刮gua刀dao進jin行xing調tiao整zheng,否fou則ze會hui使shi物wu料liao難nan以yi進jin入ru壓ya輥gun與yu壓ya模mo之zhi間jian,一yi部bu分fen物wu料liao會hui從cong壓ya模mo罩zhao竄cuan出chu,形xing成cheng顆ke粒li粉fen化hua率lv高gao,調tiao整zheng結jie果guo應ying是shi刮gua刀dao上shang部bu邊bian緣yuan曲qu線xian與yu壓ya模mo、壓模罩間隙基本控製在2~3mm之間,刮刀前端仲人壓模位置不宜超過壓模內孔的沉割槽。製粒機各部位調整好後,可以開機製粒。先開製粒機、調質器、喂(wei)料(liao)器(qi),此(ci)時(shi)喂(wei)料(liao)器(qi)應(ying)處(chu)於(yu)小(xiao)供(gong)料(liao)狀(zhuang)態(tai)。為(wei)防(fang)止(zhi)機(ji)內(nei)雜(za)物(wu)進(jin)入(ru)壓(ya)模(mo),應(ying)該(gai)打(da)開(kai)操(cao)作(zuo)門(men)上(shang)的(de)機(ji)外(wai)排(pai)料(liao)門(men),排(pai)淨(jing)機(ji)內(nei)混(hun)有(you)雜(za)物(wu)的(de)料(liao)。待(dai)雜(za)物(wu)料(liao)幹(gan)淨(jing)後(hou),即(ji)可(ke)將(jiang)料(liao)導(dao)入(ru)壓(ya)模(mo)。為(wei)慎(shen)重(zhong)起(qi)見(jian),手(shou)應(ying)握(wo)住(zhu)機(ji)外(wai)排(pai)料(liao)門(men)手(shou)柄(bing),先(xian)讓(rang)部(bu)分(fen)料(liao)進(jin)入(ru)壓(ya)模(mo),然(ran)後(hou)觀(guan)察(cha)是(shi)否(fou)有(you)顆(ke)粒(li)順(shun)利(li)出(chu)模(mo),並(bing)同(tong)時(shi)注(zhu)意(yi)電(dian)流(liu)變(bian)化(hua)。如(ru)果(guo)顆(ke)粒(li)能(neng)正(zheng)常(chang)製(zhi)出(chu),電(dian)流(liu)較(jiao)平(ping)穩(wen),波(bo)動(dong)幅(fu)度(du)不(bu)大(da),沒(mei)有(you)達(da)到(dao)額(e)定(ding)電(dian)流(liu),那(na)麼(me)可(ke)以(yi)加(jia)大(da)物(wu)料(liao)流(liu)量(liang),並(bing)同(tong)時(shi)適(shi)當(dang)增(zeng)加(jia)蒸(zheng)汽(qi)量(liang),直(zhi)至(zhi)達(da)到(dao)額(e)定(ding)電(dian)流(liu)為(wei)止(zhi)。假(jia)如(ru)物(wu)料(liao)能(neng)進(jin)入(ru)製(zhi)粒(li)室(shi),但(dan)沒(mei)有(you)顆(ke)粒(li)出(chu)模(mo),並(bing)且(qie)電(dian)流(liu)不(bu)斷(duan)升(sheng)高(gao),這(zhe)時(shi)要(yao)打(da)開(kai)機(ji)外(wai)排(pai)料(liao),觀(guan)察(cha)不(bu)斷(duan)續(xu)進(jin)料(liao)時(shi),電(dian)流(liu)是(shi)否(fou)下(xia)降(jiang)。如(ru)果(guo)電(dian)流(liu)下(xia)降(jiang),同(tong)時(shi)有(you)部(bu)分(fen)顆(ke)粒(li)出(chu)模(mo),可(ke)以(yi)握(wo)住(zhu)機(ji)外(wai)排(pai)料(liao)門(men)手(shou)柄(bing),讓(rang)部(bu)分(fen)料(liao)導(dao)入(ru)壓(ya)模(mo),部(bu)分(fen)料(liao)排(pai)外(wai),觀(guan)察(cha)電(dian)流(liu)是(shi)否(fou)平(ping)穩(wen),壓(ya)模(mo)出(chu)粒(li)是(shi)否(fou)順(shun)當(dang),如(ru)正(zheng)常(chang)可(ke)將(jiang)物(wu)料(liao)全(quan)部(bu)導(dao)入(ru)壓(ya)模(mo).jiarutingzhijinliaohoudianliurengbuxiajiang,shenzhijixushangsheng,jiuyingtingjijianzhayuanyin,bianzhengshizhi。zhidetixingdeshi,zaichuxialiaoshi,qiewujiyujiazhengqi,yinweicishiwuliaoshao+蒸zheng汽qi難nan以yi加jia到dao理li想xiang量liang,蒸zheng汽qi多duo物wu料liao少shao,極ji易yi堵du機ji,不bu如ru待dai料liao加jia到dao一yi定ding量liang時shi才cai加jia蒸zheng汽qi來lai得de穩wen妥tuo。另ling外wai顆ke粒li機ji下xia班ban停ting機ji前qian,必bi須xu將jiang油you性xing物wu料liao替ti代dai原yuan來lai物wu料liao填tian進jin壓ya模mo內nei,其qi目mu的de是shi防fang止zhi模mo孔kong內nei物wu料liao變bian硬ying,以yi便bian下xia次ci開kai機ji壓ya模mo能neng順shun利li出chu粒li。
5、環模
製粒過程中物料能否被擠壓通過壓模取決於模孔中所能產生的壓力和摩擦力的大小。這跟物料與壓模壁之間的摩擦係數、水分含量、原料粒度、溫度、物料可塑性變形部分的緩衝時間和物料的可壓縮性有關,這些特性與壓模的孔深和孔徑密切相關。一般來講,壓模的孔徑壓縮比采用1:8~1:13(即模孔與壓模的有效厚度比),壓模的壓縮比小,壓模孔的有效長度短,物料在壓模孔中形成的壓力小,容易擠出環模,因此+產量高,但製出的顆粒料鬆散,含粉率較高,外觀不光滑;反(fan)之(zhi)壓(ya)模(mo)孔(kong)的(de)有(you)效(xiao)長(chang)度(du)越(yue)長(chang),物(wu)料(liao)在(zai)壓(ya)模(mo)孔(kong)中(zhong)的(de)壓(ya)力(li)越(yue)大(da),相(xiang)應(ying)製(zhi)出(chu)來(lai)的(de)顆(ke)粒(li)緊(jin)密(mi)度(du)高(gao),顆(ke)粒(li)光(guang)滑(hua)質(zhi)量(liang)好(hao),可(ke)降(jiang)低(di)含(han)粉(fen)率(lv),但(dan)顆(ke)粒(li)機(ji)產(chan)量(liang)會(hui)下(xia)降(jiang),當(dang)然(ran)噸(dun)電(dian)耗(hao)也(ye)相(xiang)應(ying)增(zeng)加(jia)。因(yin)此(ci),飼(si)料(liao)生(sheng)產(chan)廠(chang)家(jia)在(zai)生(sheng)產(chan)不(bu)同(tong)規(gui)格(ge)與(yu)品(pin)種(zhong)的(de)顆(ke)粒(li)料(liao)時(shi),所(suo)選(xuan)用(yong)的(de)環(huan)模(mo)孔(kong)徑(jing)比(bi)會(hui)有(you)所(suo)不(bu)同(tong)。
三門峽富通新能源生產銷售顆粒機、秸稈壓塊機、飼料顆粒機、秸稈顆粒機、木屑顆粒機等生物質燃料飼料成型機械設備。



