CN101613411A - Starch washing process in corn starch production process - Google Patents
Starch washing process in corn starch production process Download PDFInfo
- Publication number
- CN101613411A CN101613411A CN200910015375A CN200910015375A CN101613411A CN 101613411 A CN101613411 A CN 101613411A CN 200910015375 A CN200910015375 A CN 200910015375A CN 200910015375 A CN200910015375 A CN 200910015375A CN 101613411 A CN101613411 A CN 101613411A
- Authority
- CN
- China
- Prior art keywords
- water
- washing
- starch
- production process
- reverse osmosis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005406 washing Methods 0.000 title claims abstract description 37
- 229920002472 Starch Polymers 0.000 title claims abstract description 28
- 235000019698 starch Nutrition 0.000 title claims abstract description 28
- 239000008107 starch Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 229920002261 Corn starch Polymers 0.000 title abstract 3
- 239000008120 corn starch Substances 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000001223 reverse osmosis Methods 0.000 claims description 16
- 240000008042 Zea mays Species 0.000 claims description 6
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 6
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 6
- 235000005822 corn Nutrition 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 235000020681 well water Nutrition 0.000 claims description 2
- 239000002349 well water Substances 0.000 claims description 2
- 239000013505 freshwater Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract 1
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention belongs to the field of starch production processes, and particularly relates to a starch washing process in a corn starch production process. The invention overcomes the defects and provides a starch washing process in the corn starch production process, wherein fresh water is heated by raw steam and a heat exchange system is used for replacing heating. The fresh water is heated by the heat exchange system instead of the steam generation system, and the temperature of the washing water is raised and the temperature of the process water is controlled through the heat transfer of the plate exchange.
Description
Technical field
The invention belongs to the starch producing technology field, relate in particular to the starch washing process in the W-Gum production process.
Background technology
W-Gum generally be used in the food-processing and fermentation industry in, purposes is very extensive in food-processing, is main raw material in fermentation industry.
The production process of W-Gum is divided into: corn impurity elimination → carry embryo, fiber → extraction albumen → starch washing → drying and packaging with acid soak → separation.Wherein in the starch washing process, part insoluble protein and soluble protein or inorganic salt etc. are arranged still in the starch milk behind the protein isolate, the operation of washing room has determined the quality of starch quality, and the selection of washing water is important factors.Need to heat water temperature in washing process, a fresh water of washing starch generally heats up with steam in the prior art, need expend a lot of coals, has strengthened production cost.
Summary of the invention
The present invention has overcome above-mentioned defective, and a kind of starch washing process of giving birth in the W-Gum production process that the steam heating fresh water replaces heating by heat-exchange system is provided.
Well water is carried out reverse-osmosis treated, be about to underground water through the ion of reverse osmosis membrane stop filter after, obtaining that electricity leads is 25～35 purify waste water;
What the W-Gum producing process among the present invention adopted is the enclosed water cycle process, and in the enclosed water cycle process of corn processed, after material will pass through the operation of pump and high-speed rotating equipment, the process water temperature reached 50 ℃～55 ℃;
In this starch washing process process, the water of washing starch heats up and is realized by the heat exchange that originally changes into by process water with steam, promptly installs plate-type heat exchanger additional between technology water pot and former water pot, concrete washing water cooling design: 15～20m
350 ℃～55 ℃ in/h high-temperature technology water and 30～35m
318 ℃～20 ℃ of/h reverse osmosis washing water are through plate-type heat exchanger exchange heat energy;
Through behind the heat energy utilization, process water had not only fallen and has warmly guaranteed production safety but also made a fresh water temperature meet requirement.
Beneficial effect of the present invention is: give birth to the steam heating fresh water among the present invention and replace heating by heat-exchange system, by plate change heat passage, promptly risen temperature the process water temperature controlled to some extent to washing water.Saved production cost if calculate by ton starch 2.5 side's water, produced 400 tons of starch daily, water consumption is 1000 sides; 18 ℃ of fresh water temperatures, 30 ℃ of meters of heating back water temperature, 1Kcal/Kg. ℃ of water specific heat, then 1 year required quantity of steam is: (30-18) * 1000*1*300/ (650-80)=6316t saves coal consumption 916t, (by 900 yuan/ton) then 1 year saving expense more than 82.5 ten thousand yuan, fully save steam, saved production cost, promoted national energy-saving and emission-reduction principles and policies effectively to implement.
Embodiment
Further specify technical scheme of the present invention below by embodiment, but the present invention is not exceeded with embodiment.
Embodiment 1
At first former water is carried out reverse-osmosis treated, be about to 2.5 side's underground water through the ion of reverse osmosis membrane stop filter after, obtaining that electricity leads is 25 purify waste water; In the enclosed water cycle process of corn processed, after material will pass through the operation of pump and high-speed rotating equipment, the process water temperature reached 50 ℃; In the starch washing process, the heat exchange that the water of washing starch heats up by process water realizes, promptly adds board-like interchanger, 15m between technology water pot and former water pot
350 ℃ in/h high-temperature technology water and 30m
3It is interchanger exchange heat energy that/h reverse osmosis washing water are handled for 18 ℃.
Embodiment 2
At first former water is carried out reverse-osmosis treated, be about to 5 cubic metres of underground water through the ion of reverse osmosis membrane stop filter after, obtaining that electricity leads is 30 purify waste water; In the enclosed water cycle process of corn processed, after material will pass through the operation of pump and high-speed rotating equipment, the process water temperature reached 53 ℃; In this starch washing process process, the water of washing starch heats up and is realized by the heat exchange that originally changes into by process water with steam, promptly installs plate-type heat exchanger additional between technology water pot and former water pot.Concrete washing water cooling design: 18m
353 ℃ in/h high-temperature technology water and 30m
319 ℃ of/h reverse osmosis washing water are through plate-type heat exchanger exchange heat energy.
Embodiment 3
At first former water is carried out reverse-osmosis treated, be about to 2.5 cubic metres of underground water through the ion of reverse osmosis membrane stop filter after, obtaining that electricity leads is 35 purify waste water; In the enclosed water cycle process of corn processed, after material will pass through the operation of pump and high-speed rotating equipment, the process water temperature reached 55 ℃; In this starch washing process process, the water of washing starch heats up and is realized by the heat exchange that originally changes into by process water with steam, promptly installs plate-type heat exchanger additional between technology water pot and former water pot.Concrete washing water cooling design: 20m
355 ℃ in/h high-temperature technology water and 30m
320 ℃ of/h reverse osmosis washing water are through plate-type heat exchanger exchange heat energy.
Claims (3)
1. the starch washing process in the W-Gum production process, it is characterized in that: concrete steps are:
(1) well water is carried out reverse-osmosis treated, be about to underground water through the ion of reverse osmosis membrane stop filter after, obtaining that electricity leads is 25～35 purify waste water;
(2) in the enclosed water cycle process of corn processed, after material will pass through the operation of pump and high-speed rotating equipment, the process water temperature reached 50 ℃～55 ℃;
(3) in this starch washing process process, the water of washing starch heats up and is realized by the heat exchange that originally changes into by process water with steam, promptly installs plate-type heat exchanger additional between technology water pot and former water pot, concrete washing water cooling design: 15～20m
350 ℃～55 ℃ in/h high-temperature technology water and 30～35m
318 ℃～20 ℃ of/h reverse osmosis washing water are through plate-type heat exchanger exchange heat energy.
2. the starch washing process in the W-Gum production process as claimed in claim 1 is characterized in that: to lead be 32 purify waste water to preferred electricity in the described step (1).
3. the starch washing process in the W-Gum production process as claimed in claim 1 is characterized in that: preferred 18m in the described step (3)
3/ h high-temperature technology water, 33m
3/ h reverse osmosis washing water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100153754A CN101613411B (en) | 2009-05-27 | 2009-05-27 | Process for washing starch in process of producing corn starch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100153754A CN101613411B (en) | 2009-05-27 | 2009-05-27 | Process for washing starch in process of producing corn starch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101613411A true CN101613411A (en) | 2009-12-30 |
| CN101613411B CN101613411B (en) | 2011-09-21 |
Family
ID=41493312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100153754A Expired - Fee Related CN101613411B (en) | 2009-05-27 | 2009-05-27 | Process for washing starch in process of producing corn starch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101613411B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102453098A (en) * | 2010-10-18 | 2012-05-16 | 中粮集团有限公司 | Preparation method of corn starch |
| CN102453099A (en) * | 2010-10-18 | 2012-05-16 | 中粮集团有限公司 | Preparation method of corn starch |
-
2009
- 2009-05-27 CN CN2009100153754A patent/CN101613411B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102453098A (en) * | 2010-10-18 | 2012-05-16 | 中粮集团有限公司 | Preparation method of corn starch |
| CN102453099A (en) * | 2010-10-18 | 2012-05-16 | 中粮集团有限公司 | Preparation method of corn starch |
| CN102453098B (en) * | 2010-10-18 | 2014-04-23 | 中粮集团有限公司 | Preparation method of corn starch |
| CN102453099B (en) * | 2010-10-18 | 2014-04-23 | 中粮集团有限公司 | Preparation method of corn starch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101613411B (en) | 2011-09-21 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20130527 |