1、強化氣流
烘幹機簡介
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粉碎機、旋風分離器、袋式除塵器、引yin風feng機ji等deng組zu成cheng。曆li來lai膏gao糊hu狀zhuang物wu料liao烘hong幹gan是shi個ge難nan題ti,適shi用yong於yu此ci類lei物wu料liao的de烘hong幹gan機ji較jiao少shao。強qiang化hua氣qi流liu烘hong幹gan機ji使shi許xu多duo膏gao糊hu狀zhuang物wu料liao得de以yi直zhi接jie烘hong幹gan,大da大da提ti高gao了le熱re效xiao率lv。現xian在zai,這zhe一yi機ji型xing已yi普pu遍bian用yong於yu農nong藥yao(如農藥多菌靈、草甘膦原粉)、染料、顏料、醫藥、化工、食品、建材等行業。其烘幹操作原理類似於旋轉閃蒸烘幹機,富通新能源專業生產銷售
氣流式烘幹機、
滾筒烘幹機等幹燥烘幹機械設備。
2、強化氣流烘幹機的工作原理
濕shi物wu料liao經jing定ding量liang螺luo旋xuan加jia料liao器qi,由you螺luo旋xuan片pian的de推tui力li擠ji壓ya成cheng片pian狀zhuang或huo條tiao狀zhuang連lian續xu輸shu入ru烘hong幹gan機ji內nei。在zai下xia落luo的de過guo程cheng中zhong與yu熱re空kong氣qi相xiang遇yu,部bu分fen水shui分fen即ji蒸zheng發fa,使shi物wu料liao的de黏nian性xing下xia降jiang,結jie成cheng塊kuai狀zhuang的de物wu料liao不bu斷duan落luo人ren強qiang化hua器qi。經jing粉fen碎sui機ji粉fen碎sui後hou再zai烘hong幹gan。粉fen狀zhuang濕shi物wu料liao懸xuan浮fu在zai熱re空kong氣qi中zhong,物wu料liao不bu斷duan翻fan滾gun,加jia大da了le傳chuan熱re麵mian積ji,提ti高gao了le傳chuan熱re係xi數shu,烘hong幹gan時shi間jian短duan。烘hong幹gan後hou的de粉fen體ti隨sui氣qi流liu繼ji續xu上shang升sheng進jin入ru旋xuan風feng分fen離li器qi收shou集ji,尾wei氣qi經jing袋dai式shi除chu塵chen器qi過guo濾lv後hou放fang空kong。該gai係xi統tong把ba預yu烘hong幹gan、粉碎、最終烘幹結合在一起,解決了膏狀物料在烘幹設備內因黏結而不能流化的問題。
強化氣流烘幹機足以粉碎、烘hong幹gan為wei其qi主zhu要yao特te征zheng的de烘hong幹gan設she備bei,因yin而er提ti高gao了le氣qi同tong間jian傳chuan熱re傳chuan質zhi速su率lv,並bing且qie縮suo短duan了le物wu料liao內nei部bu水shui分fen擴kuo散san到dao表biao麵mian的de傳chuan遞di距ju離li,盡jin可ke能neng把ba物wu料liao的de內nei部bu結jie合he水shui轉zhuan變bian為wei表biao麵mian水shui分fen進jin行xing烘hong幹gan。同tong時shi,在zai強qiang化hua器qi的de作zuo用yong下xia,使shi熱re空kong氣qi形xing成cheng湍tuan動dong和he螺luo旋xuan上shang升sheng氣qi流liu,延yan長chang了le物wu料liao的de停ting留liu時shi間jian,物wu料liao的de流liu動dong得de到dao了le加jia速su,具ju備bei了le良liang好hao的de傳chuan熱re傳chuan質zhi條tiao件jian。由you於yu物wu料liao是shi由you定ding量liang加jia料liao器qi連lian續xu、穩定地加入強化器內,在粉碎機的作用下,物料被迅速粉碎,進行傳熱、傳chuan質zhi過guo程cheng而er被bei烘hong幹gan。同tong時shi在zai強qiang化hua區qu被bei粉fen碎sui的de物wu料liao失shi去qu黏nian性xing,呈cheng小xiao塊kuai並bing形xing成cheng稀xi相xiang流liu化hua,在zai烘hong幹gan機ji出chu料liao口kou細xi粒li物wu料liao被bei氣qi流liu夾jia帶dai而er出chu。因yin此ci,強qiang化hua氣qi流liu烘hong幹gan機ji具ju有you流liu化hua床chuang和he氣qi流liu烘hong幹gan機ji的de雙shuang重zhong作zuo用yong。
3、強化氣流烘幹機的結構
強化氣流烘幹機集強化(攪拌、粉碎)烘幹、流化烘幹、氣流烘幹於一體。下部錐形為強化區,錐角60。,通常沿錐壁四周裝有多檔固定齒,攪拌軸上有活動齒,活動齒與錐壁間隙5 mm,活動齒與下固定齒間隙6-8 mm,轉速250-450 r/min。熱空氣進口接近錐形底部,氣速應控製在20-35 m/s。高的氣速可以阻止較大顆粒下落積聚在錐底。強化區依靠活動齒與固定齒及錐壁的高速相對運動產生巨大剪切力,使較大顆粒、半幹物料得到粉碎,並與進口高溫氣流接觸,大大強化了傳熱和傳質的效果。
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