摘 要
玉米淀粉是当前工业中的重要原料，多用于食品行业、制糖、医药工业，应用淀粉为原料，生产抗生素，维生素；铸造工业用中也加用粉；干电池中用淀粉为电解质载体。其他诸如油漆、塑料、淀粉为砂芯胶粘剂；冶金工业浮选矿石为沉降剂；石油工业油井钻泥中用淀粉使其具有蓄水性；油壁的修补水泥染料、纺织、造纸、轮胎橡胶等行业，均将淀粉作为必需的材料，也是制作各类变性淀粉的起始材料。随着玉米价格增长，玉米资源紧张，玉米淀粉的深度加工和充分转化变得更为迫切，本设计采用湿磨法生产工艺达到年产20万吨玉米淀粉，运用喷雾干燥器干燥淀粉，摒弃了传统的干法生产工艺和气流干燥法，运用物料衡算和热量衡算等方法，确定了喷嘴半径。
关键词：玉米淀粉；工艺流程；工艺设计；物衡量；计算
Abstract
Corn starch is an important raw material in the current industry, mostly used in food industry, sugar making, pharmaceutical industry, using starch as raw material to produce antibiotics, vitamins; casting industry also added powder; dry battery used starch as electrolyte carrier. Other industries such as paint, plastics and starch are sand-core adhesives; flotation ores in the metallurgical industry are used as settling agents; starch is used in drilling mud in oil wells in the petroleum industry to make them water-retaining; and starch is used as a necessary material in repairing cement dyes, textile, paper-making and tire rubber in oil walls. With the increase of corn price, corn resource is tight, corn starch Deep processing and full conversion become more urgent. This design adopts wet milling process to produce 200,000 tons of corn starch per year, uses spray dryer to dry starch, abandons the traditional dry process and airflow drying method, and determines the nozzle radius by means of material balance and heat balance.
Keywords: corn starch; technological process; technological design; material balance; calculation
目 录
摘 要I
AbstractII
一、概述1
二、工艺介绍2
三、工艺描述5
3.1玉米的储存5
3.2玉米的浸泡、蒸发5
3.3胚芽分离7
3.4纤维分离、洗涤、脱水、干燥9
3.5淀粉分离和精制12
3.6淀粉脱水、干燥14
3.7麸质浓缩、脱水、干燥和粉碎15
四、工艺计算18
4.1劳动力估算18
4.2玉米淀粉结晶糖生产过程中的水环流18
4.3车间水用量计算20
4.3.1淀粉洗涤用水20
4.3.2 葡萄糖结晶冷却用水20
4.3.3 生活用水22
4.3.4 总用水量22
4.4 汽的计算22
4.5 电的计算24
4.6 管径计算24
五、车间布置26
5.1厂房布置的原则26
5.2车间布局图26
六、“三废”处理及其综合利用28
七、投资核算29
7.1项目总投资29
7.2设备清单29
结 论39
参考文献40
