CN112774229A - Production method for evaporating and concentrating high-concentration corn steep liquor - Google Patents
Production method for evaporating and concentrating high-concentration corn steep liquor Download PDFInfo
- Publication number
- CN112774229A CN112774229A CN202110193906.XA CN202110193906A CN112774229A CN 112774229 A CN112774229 A CN 112774229A CN 202110193906 A CN202110193906 A CN 202110193906A CN 112774229 A CN112774229 A CN 112774229A
- Authority
- CN
- China
- Prior art keywords
- steep liquor
- corn steep
- equipment
- concentration
- vacuum
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/222—In rotating vessels; vessels with movable parts
- B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
- B01D1/225—In rotating vessels; vessels with movable parts containing a rotor with blades or scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0064—Feeding of liquid into an evaporator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0082—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
Abstract
The invention provides a production method of high-concentration corn steep liquor, wherein dilute corn steep liquor is pumped to a material distributor of vacuum scraper plate evaporation concentration equipment by a pump and is uniformly distributed on the inner surface of the equipment, the corn steep liquor flows downwards along the inner surface of the equipment by the gravity of the material and the rotation of a scraper plate, the corn steep liquor is heated in the downward flow process, water in the material is changed into water vapor which is evaporated and discharged by a vacuum pump, and the high-concentration corn steep liquor is extruded and discharged by the scraper plate and a screw so as to achieve the purpose of evaporating and concentrating the corn steep liquor. The invention has the obvious advantages that the problem that the corn steep liquor can not be evaporated and concentrated to high concentration is solved, and the high-concentration corn steep liquor is convenient to store, transport and process.
Description
Technical Field
The invention relates to feed processing and biological fermentation technologies, in particular to a production method for evaporating and concentrating high-concentration corn steep liquor.
Background
The livestock industry in China develops to make the feed processing industry competitive, and each enterprise improves the competitiveness of the enterprise by controlling various costs such as production cost, transportation cost and the like.
Disclosure of Invention
The invention provides a production method for evaporating and concentrating high-concentration corn steep liquor, aiming at the actual problem that the high-concentration corn steep liquor cannot be produced, and the reasonable control of the production cost and the transportation cost can be realized.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a production method for evaporating and concentrating high-concentration corn steep liquor is realized by adopting the following devices: a corn steep liquor adjusting tank, a material pump, a vacuum scraper evaporation thickener, a vacuum pump and a screw discharge pump; the corn steep liquor is conveyed to a material distributor of a vacuum scraper evaporation concentrator (device) by a material pump, the material is uniformly distributed on the inner surface of the equipment by the material distributor above, the vacuum scraper evaporation concentrator (device) is of a double-layer structure, the material is heated on the inner surface of the equipment after the equipment is heated by steam, reaches the lower end of the equipment through the action of self gravity and a scraper on the surface of the equipment, is discharged by spiral extrusion, is changed into high-concentration corn steep liquor, and the solid content can reach more than eighty percent; and (3) heating the moisture in the material to form steam, discharging the steam through a vacuum pump, and sending the discharged wastewater to a sewage treatment plant for treatment and standard discharge.
The invention has the obvious advantages that the concentration of the corn steep liquor is improved to the maximum extent, when the concentration of the corn steep liquor is higher than fifty percent, the traditional multi-effect evaporator can not continuously produce due to the blockage of the pipeline of the evaporator caused by poor fluidity, and the production, transportation and other costs are high during the production of downstream enterprises due to low concentration of the corn steep liquor; because the concentration of the corn steep liquor is improved, the solid content is improved to more than eighty percent from fifty percent, the transportation cost can be saved, about 1.3 tons of steam can be saved when 1 ton of corn steep liquor dry powder is produced in downstream enterprises, the production cost can be reduced, and the competitiveness of the enterprises is improved.
Drawings
FIG. 1 is a schematic view of the process of the present invention.
In the figure, 1-corn steep liquor adjusting tank, 2-material pump, 3-scraper thickener, 4-vacuum pump and 5-screw pump are adopted.
Detailed Description
After a corn steep liquor (with solid content of 7-10%) is evaporated and concentrated by a multi-effect evaporator and a first-stage forced circulation evaporator, the solid content of corn steep liquor is increased to about 50%, the corn steep liquor with the solid content of 50% is pumped to a material distributor of a scraper concentrator by a thick slurry pump, the material is uniformly distributed on the inner surface of equipment by the material distributor above, the vacuum scraper evaporator concentrator (the concentrator) has a double-layer structure, the material is heated on the inner surface of the equipment after being heated by steam, the material reaches the lower end of the equipment along the surface of the equipment under the action of self gravity and a scraper, and is discharged by spiral extrusion, the solid content of the high-concentration corn steep liquor can reach more than eighty percent after being discharged, and the high-concentration corn steep liquor can be directly sold or dried into corn; and (3) heating the moisture in the material to form steam, discharging the steam through a vacuum pump, and sending the discharged wastewater to a sewage treatment plant for treatment and standard discharge.
Claims (4)
1. A production method for evaporating and concentrating high-concentration corn steep liquor is realized by adopting the following devices: a corn steep liquor adjusting tank, a material pump, a vacuum scraper evaporation thickener, a vacuum pump and a screw discharge pump; the corn steep liquor is conveyed to a material distributor of a vacuum scraper evaporation concentrator (device) by a material pump, the material is uniformly distributed on the inner surface of the equipment by the material distributor above, the vacuum scraper evaporation concentrator (device) is of a double-layer structure, the material is heated on the inner surface of the equipment after the equipment is heated by steam, reaches the lower end of the equipment through the action of self gravity and a scraper on the surface of the equipment, is discharged by spiral extrusion, is changed into high-concentration corn steep liquor, and the solid content can reach more than eighty percent; and (3) heating the moisture in the material to form steam, discharging the steam through a vacuum pump, and sending the discharged wastewater to a sewage treatment plant for treatment and standard discharge.
2. The method of claim 1, wherein the thin corn steep liquor is concentrated by a vacuum blade evaporation concentrator.
3. The method of claim 1, wherein the corn steep liquor is heated and the water vapor is removed by a vacuum pump.
4. The method of claim 1, wherein the corn steep liquor is discharged by a scraper and screw press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110193906.XA CN112774229A (en) | 2021-02-21 | 2021-02-21 | Production method for evaporating and concentrating high-concentration corn steep liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110193906.XA CN112774229A (en) | 2021-02-21 | 2021-02-21 | Production method for evaporating and concentrating high-concentration corn steep liquor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112774229A true CN112774229A (en) | 2021-05-11 |
Family
ID=75761655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110193906.XA Pending CN112774229A (en) | 2021-02-21 | 2021-02-21 | Production method for evaporating and concentrating high-concentration corn steep liquor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112774229A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6627047B1 (en) * | 1999-04-23 | 2003-09-30 | Nippon Shokubai Co., Ltd. | Method for preventing polymerization in thin-film type evaporating device |
| CN103989136A (en) * | 2014-05-15 | 2014-08-20 | 菱花集团有限公司 | Method and device for purifying concentrated corn steep liquor through brush filter in monosodium glutamate production |
| CN105617695A (en) * | 2016-02-02 | 2016-06-01 | 常熟市中药制药机械有限责任公司 | High-concentrating-efficiency vacuum scrapper concentrator |
| CN108273276A (en) * | 2018-03-27 | 2018-07-13 | 江苏金陵环保设备有限公司 | Mother liquor concentrations cure all-in-one machine |
-
2021
- 2021-02-21 CN CN202110193906.XA patent/CN112774229A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6627047B1 (en) * | 1999-04-23 | 2003-09-30 | Nippon Shokubai Co., Ltd. | Method for preventing polymerization in thin-film type evaporating device |
| CN103989136A (en) * | 2014-05-15 | 2014-08-20 | 菱花集团有限公司 | Method and device for purifying concentrated corn steep liquor through brush filter in monosodium glutamate production |
| CN105617695A (en) * | 2016-02-02 | 2016-06-01 | 常熟市中药制药机械有限责任公司 | High-concentrating-efficiency vacuum scrapper concentrator |
| CN108273276A (en) * | 2018-03-27 | 2018-07-13 | 江苏金陵环保设备有限公司 | Mother liquor concentrations cure all-in-one machine |
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