Evaporation Plants for the Starch Industry
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Catalog excerpts

Evaporation Plants for the Starch Industry - 1

Evaporation Plants for the Starch Industry Starch Products from Corn, Grain, Potato, Tapioca GEA Process Engineering GEA Wiegand

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Evaporation Plants for the Starch Industry - 2

Evaporation Technology in the Starch Industry GEA Wiegand delivers plants with plate and shell and tube evaporators for multiple applications in the starch industry. Thanks to extensive know-how, numerous investigations in the GEA Wiegand research and development centre and thanks to the experience gained by thousands of evaporation plants GEA Wiegand is able to offer tailor-made plant conceptions meeting the individual requirements of our customers. Our scope of supply and services includes consulting, engineering, calculation, design, manufacture, delivery, quality control, commissioning...

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Evaporation Plants for the Starch Industry - 3

Treatment of Process Effluents in the Starch Industry Production of starch from grain Corn steeping Germ separation Corn steep water WATER FLOWS. During the production of starch, different process waters are produced when decomposing the raw substances. These steep waters and washing waters contain valuable nutrients such as proteins and lactic acid. WATER FLOWS OCCURRING DURING THE PROCESSING OF THE RAW VALUABLE NUTRIENTS CONCENTRATION. To recover these nutrients, the water is concen- trated in evaporation plants. CONCENTRATIONS ACHIEVABLE IN EVAPORATION ■ Corn steep water 50-55 % DS ■...

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Evaporation Plants for the Starch Industry - 4

Concentration of Potato Fruit Water Evaporation plant for the Potatoes concentration of potato fruit water, consisting of two identical lines. Each line with a single-effect falling film evaporator as pre-evaporator, heated by a mechanical vapour recompressor, as well as a 3-effect falling film forced circulation finisher, heated by a thermal vapour recompressor. Overall evaporation rate: 152,000 kg/h Fruit water separation Evaporation Concentrate Fertilizers Heating steam Potato fruit water Venting 8 1 1 4 9 5 4 2 Cooling water 2 3 3 6 7 1, 2 Falling film evaporator 3, 4 Forced circulation...

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Evaporation Plants for the Starch Industry - 5

Concentration of Effluents from Wheat Starch Production Wheat Starch-gluten separation Evaporation Concentrate Drying Evaporation plant for the concentration of waste waters and effluents from wheat starch production heated by means of a mechanical vapour recompressor. Evaporation rate: 30,000 kg/h Fodder Heating steam 1 3 1 2 2 4 4 5 1, 2 Falling film evaporator 3 Condenser 4 Plate heat exchanger 5 Condensate tank 6 Mechanical vapour recompressor 7 Vacuum pump Cooling water Venting 6 7 Wheat starch effluent Vapour Vapour condensate Concentrate 5

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Evaporation Plants for the Starch Industry - 6

Concentration of Corn Steep Water Evaporation plant for the Corn concentration of corn steep water. 3-effect falling film, forced circulation evaporator with vapour scrubber, heated by means of dryer exhaust steam. Evaporation rate: 20,000 kg/h Corn steeping Evaporation Concentrate Drying Fodder Dryer exhaust steam Heating steam Corn steep water 5 Combustion Cooling water 4 4 1 1 8 2 7 5 3 2 1, 2 Falling film evaporator 3, 4 Forced circulation evaporator 5 Condenser 6 Condensate tank 7 Vapour scrubber 8 Fan 9 Vacuum pump 6 Venting 9 Vapour Vapour condensate Concentrate 6

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Evaporation Plants for the Starch Industry - 7

Concentration of Saccharification Products from Starch In the preparation of starch saccharification products thin juices of different degrees of saccharification and of different concentrations are produced from which greases and proteins are separated and which are then concentrated in evaporation plants. The degradation degree in the basic module D-glucose is indicated with the DE value. It designates the contents of D-glucose related to the overall dry substance. The higher the DE value, the higher the portion of D-glucose molecules. GEA Wiegand has the product know-how for evaporation...

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Evaporation Plants for the Starch Industry - 8

Dextrose Single-effect falling film Starch milk evaporation plant with two parallel, multi-path calandria for two different starch hydrolysates, heated via a common mechanical vapour recompressor. Evaporation rate: 22,000 kg/h Liquefaction: acidification, enzymatic treatment Saccharification Decolourisation, desalination Evaporation Dextrose syrup Heating steam 3 4 1 1 4 Venting 2 7 2 Cooling water 5 5 6 1, 2 Falling film evaporator 3 Condenser 4 Preheater 5 Plate heat exchanger 6 Mechanical vapour recompressor 7 Vacuum pump Vapour Product Concentrate Vapour condensate 8

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Evaporation Plants for the Starch Industry - 9

Sorbitol 2-effect plate evaporation Starch milk plant for sorbitol solution, heated via a thermal vapour recompressor. Evaporation rate: 4,300 kg/h Liquefaction: acidification, enzymatic treatment Saccharification Decolourisation, desalination Evaporation Dextrose syrup Heating steam Cooling water 6 Hydration 2 1 1 2 3 Decolourisation, desalination Evaporation 4 4 4 1, 2 Plate evaporator 3 Plate condenser 4 Plate heat exchanger 5 Condensate tank 6 Thermal vapour recompressor 7 Vacuum pump 4 5 Venting Drying Sorbitol 7 Vapour Product Concentrate Vapour condensate 9

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Evaporation Plants for the Starch Industry - 10

Glucose 2-effect falling film evapo- Starch milk ration plant with mechani- cal vapour recompression and single-effect falling film evaporator (finisher) with thermal vapour compressor and vacuum cooler for glucose DE30 to DE 55. Evaporation rate: 49,300 kg/h Liquefaction: acidification, enzymatic treatment Saccharification Decolourisation, desalination Evaporation Glucose syrup Heating steam 4 4 1 2 1 4 2 3 1 3 2 1, 2 Falling film evaporator 3 Condenser 4 Preheater 5 Vacuum cooler 6 Condensate tank 7 Mechanical vapour recompressor 8 Vacuum pump Cooling water 5 6 Venting 7 8 Vapour...

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Evaporation Plants for the Starch Industry - 11

3-effect falling film evaporation plant, directly heated, in co-current arrangement, with downstream-arranged vacuum cooler for the concentration of glucose syrup. Evaporation rate: 25,000 kg/h Heating steam Product 1 5 4 2 1 4 2 1 3 2 Cooling water Venting 6 7 1, 2 Falling film evaporator 3 Condenser 4 Preheater 5 Vacuum cooler 6 Condensate tank 7 Vacuum pump Vapour Vapour condensate Vapour condensate Concentrate 11

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Evaporation Plants for the Starch Industry - 12

Condensation plants with surface or mixing condensers, to condense vapour and steam/gas mixtures under vacuum. Vacuum / steam jet cooling plants to produce cold water, to cool liquids and product solutions, even of aggressive and abrasive nature. Jet pumps to convey and mix gases, liquids, and granular solids; for direct heating of liquids; as heat pumps; and in special design for the most diverse fields of application. Overview on our Range of Products Steam jet vacuum pumps also product vapour driven; also in combination with mechanical vacuum pumps (hybrid systems); extensive...

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