殺(sha)青(qing)(qing)主要目的是(shi)通過高(gao)溫破(po)壞和鈍化(hua)鮮葉中(zhong)的氧(yang)(yang)化(hua)酶(mei)活(huo)性，抑制鮮葉中(zhong)的茶多酚等的酶(mei)促氧(yang)(yang)化(hua)，防(fang)止(zhi)烘干過程中(zhong)變色。同時散發青(qing)(qing)臭(chou)味，促進良(liang)好(hao)香氣(qi)的形(xing)成。殺(sha)青(qing)(qing)機(ji)械多采用(yong)微波殺(sha)青(qing)(qing)機(ji)、滾筒殺(sha)青(qing)(qing)機(ji)和燃氣(qi)炒青(qing)(qing)機(ji)。

微波殺青機

微波(bo)殺(sha)(sha)(sha)(sha)青(qing)設備是一種新型(xing)的(de)(de)殺(sha)(sha)(sha)(sha)青(qing)設備，殺(sha)(sha)(sha)(sha)青(qing)速(su)度快、效率(lv)高(gao)、效果(guo)好。在殺(sha)(sha)(sha)(sha)青(qing)的(de)(de)同時，還(huan)可以除去(qu)約10%的(de)(de)鮮(xian)(xian)葉(xie)(xie)(xie)水分。微波(bo)殺(sha)(sha)(sha)(sha)青(qing)機的(de)(de)原理主(zhu)要是利用(yong)迅速(su)升溫來鈍化(hua)鮮(xian)(xian)葉(xie)(xie)(xie)的(de)(de)的(de)(de)活(huo)性氧(yang)化(hua)酶，抑制鮮(xian)(xian)葉(xie)(xie)(xie)中(zhong)的(de)(de)茶多酚等酶加速(su)氧(yang)化(hua)，防止在后續烘干過程中(zhong)發生(sheng)色澤嚴重改變，同時揮發鮮(xian)(xian)葉(xie)(xie)(xie)的(de)(de)腥草味(wei)，使茶香更好的(de)(de)形成。采(cai)用(yong)微波(bo)殺(sha)(sha)(sha)(sha)青(qing)設備對茶葉(xie)(xie)(xie)、菊花、金銀花等農產(chan)品進行(xing)殺(sha)(sha)(sha)(sha)青(qing)，平均每公斤的(de)(de)量所需要的(de)(de)電費不(bu)到三毛錢，而且殺(sha)(sha)(sha)(sha)青(qing)效果(guo)顯著，產(chan)品色澤、外形和(he)香氣都屬上佳品。

滾筒殺青機

烏龍茶殺(sha)青常用(yong)90型(xing)(xing)與110型(xing)(xing)兩種機(ji)(ji)型(xing)(xing)，該(gai)機(ji)(ji)結構緊湊、操(cao)作方便、效(xiao)率高(gao)。爐(lu)火直接加熱轉(zhuan)動(dong)(dong)的(de)(de)筒(tong)(tong)(tong)(tong)體(ti)，茶葉(xie)(xie)(xie)在筒(tong)(tong)(tong)(tong)體(ti)內靠摩擦和(he)筒(tong)(tong)(tong)(tong)體(ti)轉(zhuan)動(dong)(dong)的(de)(de)離(li)心力(li)在滾(gun)筒(tong)(tong)(tong)(tong)內拋(pao)轉(zhuan)，并(bing)吸收熱量(liang)達(da)到殺(sha)青目的(de)(de)。殺(sha)青適度后，反轉(zhuan)滾(gun)筒(tong)(tong)(tong)(tong)，利用(yong)筒(tong)(tong)(tong)(tong)壁的(de)(de)螺旋導(dao)葉(xie)(xie)(xie)板(ban)將茶葉(xie)(xie)(xie)推(tui)出筒(tong)(tong)(tong)(tong)外(wai)。同時，借助(zhu)滾(gun)筒(tong)(tong)(tong)(tong)末端的(de)(de)風扇將筒(tong)(tong)(tong)(tong)內茶葉(xie)(xie)(xie)排凈。該(gai)機(ji)(ji)由滾(gun)筒(tong)(tong)(tong)(tong)、傳(chuan)動(dong)(dong)裝置、風扇、機(ji)(ji)架、爐(lu)灶等部(bu)分組(zu)成。滾(gun)筒(tong)(tong)(tong)(tong)用(yong)鋼板(ban)卷(juan)制(zhi)而成，內壁焊有導(dao)葉(xie)(xie)(xie)板(ban)，導(dao)葉(xie)(xie)(xie)角為24°，其作用(yong)是(shi)幫助(zhu)進葉(xie)(xie)(xie)或(huo)推(tui)出殺(sha)青葉(xie)(xie)(xie)，并(bing)將茶葉(xie)(xie)(xie)帶至一(yi)(yi)定高(gao)度后拋(pao)下(xia)。風扇可正、反轉(zhuan)，以(yi)吹葉(xie)(xie)(xie)出筒(tong)(tong)(tong)(tong)或(huo)吸排濕氣。滾(gun)筒(tong)(tong)(tong)(tong)的(de)(de)兩端外(wai)圍設有擋煙圈，中心有一(yi)(yi)轉(zhuan)軸(zhou)，通過兩端的(de)(de)輻條與筒(tong)(tong)(tong)(tong)體(ti)相接，轉(zhuan)軸(zhou)由軸(zhou)承支撐于(yu)機(ji)(ji)架上。機(ji)(ji)架一(yi)(yi)般(ban)用(yong)角鋼制(zhi)作。爐(lu)灶由通風道(dao)、爐(lu)柵、爐(lu)膛(tang)、煙囪(cong)等組(zu)成。滾(gun)筒(tong)(tong)(tong)(tong)體(ti)置于(yu)爐(lu)膛(tang)內，爐(lu)膛(tang)頂(ding)部(bu)有拔風口(kou)與煙囪(cong)相通。110型(xing)(xing)殺(sha)青機(ji)(ji)傳(chuan)動(dong)(dong)配用(yong)功率1.1千(qian)(qian)瓦，投(tou)葉(xie)(xie)(xie)量(liang)15~25千(qian)(qian)克(ke),風機(ji)(ji)功率0.75千(qian)(qian)瓦。