首页> 外国专利> NIXTAMALIZED CORN FLOUR PROCESS AND APPARATUS IMPROVEMENT FOR RECOVERING HEAT AND REDUCING PARTICULATE EMISSION FROM WASTE HOT AIR

NIXTAMALIZED CORN FLOUR PROCESS AND APPARATUS IMPROVEMENT FOR RECOVERING HEAT AND REDUCING PARTICULATE EMISSION FROM WASTE HOT AIR

机译:九分玉米粉工艺和装置改进,以回收热量并减少废热空气中的颗粒物排放

摘要

A process and apparatus improvement for energy and particulate recovery during the production of nixtamalized corn flour, by precooking with a lime solution to effect partial cooking, reduced energy use for pre-cooking and washing by recycling hot water. Next, moisture content is stabilized, and the corn is milled and dried in a super-heated stream of air with reduced energy consumption by recycling waste hot air. Dust trapping is performed on a portion of waste hot air which is reused for preheating combustion air. Wet scrubbing of the remaining waste hot air is performed where heated water is reused and exhaust air vented. Cooling and further drying of the dried-milled particles follows. A fine grind or flour is separated and recovered from the coarse grind which is also aspirated to isolate a hull fraction as corn waste along with particulate collected after entrapping and scrubbing waste hot air. Re-milling and sieving the coarse grind produces a corn flour for tortilla and the like.
机译:通过用石灰溶液预蒸煮以进行部分蒸煮的方法和设备的改进,用于在尼克玛塔化玉米粉的生产过程中回收能量和颗粒,减少了用于预蒸煮和通过循环热水洗涤的能量。接下来,使水分含量稳定,并通过循环利用废热空气,在过热的气流中将玉米研磨和干燥,从而降低能耗。捕集一部分废热空气,将其重新用于燃烧空气的预热。在重复使用热水并排出废气的情况下,对剩余的废热空气进行湿式洗涤。然后将干燥后的研磨颗粒冷却并进一步干燥。从粗磨粉中分离出细磨粉或面粉并回收粗磨粉,粗磨粉也被抽吸以分离出作为玉米废料的船体部分,以及截留和洗涤废热空气后收集的颗粒。再研磨和筛分粗磨粉可产生玉米粉,用于玉米饼等。

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