殺(sha)(sha)(sha)青主要(yao)目的(de)是(shi)通過(guo)(guo)高溫破壞和鈍化鮮(xian)葉中(zhong)的(de)氧(yang)化酶活性，抑制鮮(xian)葉中(zhong)的(de)茶多(duo)酚等的(de)酶促(cu)氧(yang)化，防止烘干(gan)過(guo)(guo)程中(zhong)變色。同時散發青臭味，促(cu)進良好香(xiang)氣的(de)形(xing)成。殺(sha)(sha)(sha)青機(ji)械多(duo)采用微波(bo)殺(sha)(sha)(sha)青機(ji)、滾筒殺(sha)(sha)(sha)青機(ji)和燃氣炒青機(ji)。

微波殺青機

微(wei)波殺(sha)青(qing)(qing)設備(bei)是(shi)一(yi)種新型(xing)的(de)(de)(de)(de)殺(sha)青(qing)(qing)設備(bei)，殺(sha)青(qing)(qing)速(su)度快、效(xiao)率高(gao)、效(xiao)果好。在殺(sha)青(qing)(qing)的(de)(de)(de)(de)同時，還可以除去約10%的(de)(de)(de)(de)鮮葉(xie)(xie)水分。微(wei)波殺(sha)青(qing)(qing)機的(de)(de)(de)(de)原理(li)主要是(shi)利用迅速(su)升溫來鈍(dun)化鮮葉(xie)(xie)的(de)(de)(de)(de)的(de)(de)(de)(de)活性氧化酶，抑制(zhi)鮮葉(xie)(xie)中的(de)(de)(de)(de)茶(cha)(cha)(cha)多酚等(deng)酶加(jia)速(su)氧化，防止在后續烘干(gan)過程(cheng)中發生色澤(ze)嚴重改(gai)變，同時揮發鮮葉(xie)(xie)的(de)(de)(de)(de)腥草味，使茶(cha)(cha)(cha)香更好的(de)(de)(de)(de)形成(cheng)。采用微(wei)波殺(sha)青(qing)(qing)設備(bei)對(dui)茶(cha)(cha)(cha)葉(xie)(xie)、菊(ju)花(hua)、金銀花(hua)等(deng)農產品進行(xing)殺(sha)青(qing)(qing)，平(ping)均每公斤的(de)(de)(de)(de)量所需(xu)要的(de)(de)(de)(de)電(dian)費不到三(san)毛錢(qian)，而且(qie)殺(sha)青(qing)(qing)效(xiao)果顯著，產品色澤(ze)、外形和香氣(qi)都屬(shu)上(shang)佳品。

滾筒殺青機

烏龍茶殺(sha)青常(chang)用(yong)(yong)(yong)90型(xing)(xing)與110型(xing)(xing)兩種機(ji)(ji)型(xing)(xing)，該機(ji)(ji)結構(gou)緊湊、操(cao)作(zuo)方便、效(xiao)率高(gao)。爐火直接(jie)加熱轉動(dong)的(de)筒(tong)(tong)(tong)(tong)(tong)體(ti)，茶葉(xie)在筒(tong)(tong)(tong)(tong)(tong)體(ti)內(nei)靠摩擦(ca)和筒(tong)(tong)(tong)(tong)(tong)體(ti)轉動(dong)的(de)離心力在滾(gun)筒(tong)(tong)(tong)(tong)(tong)內(nei)拋轉，并吸(xi)收(shou)熱量達到殺(sha)青目(mu)的(de)。殺(sha)青適度(du)后，反轉滾(gun)筒(tong)(tong)(tong)(tong)(tong)，利用(yong)(yong)(yong)筒(tong)(tong)(tong)(tong)(tong)壁的(de)螺(luo)旋導(dao)葉(xie)板將茶葉(xie)推出筒(tong)(tong)(tong)(tong)(tong)外。同時，借助(zhu)滾(gun)筒(tong)(tong)(tong)(tong)(tong)末(mo)端(duan)的(de)風扇將筒(tong)(tong)(tong)(tong)(tong)內(nei)茶葉(xie)排(pai)凈。該機(ji)(ji)由(you)滾(gun)筒(tong)(tong)(tong)(tong)(tong)、傳動(dong)裝置(zhi)、風扇、機(ji)(ji)架、爐灶等部分組成。滾(gun)筒(tong)(tong)(tong)(tong)(tong)用(yong)(yong)(yong)鋼板卷制而(er)成，內(nei)壁焊有(you)導(dao)葉(xie)板，導(dao)葉(xie)角(jiao)為24°，其作(zuo)用(yong)(yong)(yong)是幫助(zhu)進葉(xie)或推出殺(sha)青葉(xie)，并將茶葉(xie)帶(dai)至一定高(gao)度(du)后拋下。風扇可正、反轉，以吹葉(xie)出筒(tong)(tong)(tong)(tong)(tong)或吸(xi)排(pai)濕氣。滾(gun)筒(tong)(tong)(tong)(tong)(tong)的(de)兩端(duan)外圍設有(you)擋煙圈，中心有(you)一轉軸(zhou)，通過兩端(duan)的(de)輻條(tiao)與筒(tong)(tong)(tong)(tong)(tong)體(ti)相(xiang)接(jie)，轉軸(zhou)由(you)軸(zhou)承支撐于機(ji)(ji)架上。機(ji)(ji)架一般(ban)用(yong)(yong)(yong)角(jiao)鋼制作(zuo)。爐灶由(you)通風道、爐柵、爐膛、煙囪等組成。滾(gun)筒(tong)(tong)(tong)(tong)(tong)體(ti)置(zhi)于爐膛內(nei)，爐膛頂(ding)部有(you)拔風口與煙囪相(xiang)通。110型(xing)(xing)殺(sha)青機(ji)(ji)傳動(dong)配(pei)用(yong)(yong)(yong)功率1.1千(qian)(qian)(qian)瓦，投葉(xie)量15~25千(qian)(qian)(qian)克,風機(ji)(ji)功率0.75千(qian)(qian)(qian)瓦。