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玉米漿幹粉噴霧幹燥工藝

玉米漿是生産玉米地方過程中的浸漬玉米時得到的副産品。它含有氨基酸、有機酸、可溶性糖、維生素和金屬鹽類等多種營養物質，是生産抗生素等培養基的重要原料，爲微生物生長提供天然的有機氮源。玉米漿因爲是液體大桶包裝，運輸、貯存及使用均不方便，由于蛋白質、微量無素含量高，在氣溫稍高時極易發酵變質，影響使用效果。

在不影響使用的情況下，如果將其制備爲玉米漿幹粉，能夠保持玉米漿液的所有特性，內在質量同玉米漿相同，只是水份含量少，且産品無雜質、無焦化現象。由于産品爲粉狀固體，便于運輸、貯存及使用，産品不易變質，使用方便。但將玉米漿直接采用市面的上噴霧幹燥機進行幹燥時，由于玉米漿幹粉容易吸潮結塊甚至産生堵塞，影響生産正常進行。

玉米漿幹粉的噴霧幹燥系統，能夠很好的解決玉米漿幹粉生産過程中的吸潮結塊難題。

新一代的噴霧幹燥器被稱爲多重噴霧幹燥器。幹燥不是通過一步來進行，而是通過兩步進行：一步在頂部，第二步在腔室的下部集成了靜態床。該床提供了潮濕的環境，使較小的顆粒凝聚在一起，産生了更均勻的粒徑，通常在100至300μm的範圍內。這些粉末由于較大的粒徑而自由流動。由一幹燥階段産生的細粉可在腔室的上部和下部在集成流化床內部以連續流的方式進行再循環。

粉末的幹燥可以在外部振動流化床上完成。熱幹燥氣體可以作爲並流流過與噴霧液體霧化器相同的方向，也可以逆流通過，使熱空氣逆著來自霧化器的氣流流動。

上一篇玉米漿幹粉的用途和優勢下一篇玉米漿幹粉生産安全須知？

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