CN1090673C - Fish powder puffing, pelletizing and oil extracting technology - Google Patents
Fish powder puffing, pelletizing and oil extracting technology Download PDFInfo
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- CN1090673C CN1090673C CN98110518A CN98110518A CN1090673C CN 1090673 C CN1090673 C CN 1090673C CN 98110518 A CN98110518 A CN 98110518A CN 98110518 A CN98110518 A CN 98110518A CN 1090673 C CN1090673 C CN 1090673C
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- fish meal
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- puffing
- oil
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Abstract
The present invention relates to a technique for extracting fish oil from fish meal. In the technology, pressed fish meal is granulated by puffing by using a puffing granulation process; then the fat of the fish meal puffing material granules is extracted by a filtration extraction leacher according to the universal fat extraction process. Fish meal produced by using the technical method comprises about 1% of fat and about 70% of protein. The present invention is suitable for extracting fat from oilseeds with small granularity and a large fines content.
Description
The present invention relates to a kind of grease leaching method, a kind of method that from fish meal, proposes fish oil of saying so in more detail.
Fish meal is as the main raw material of fodder industry, and protein content is high more good more.Generally about 1%, protein content is about 70% for the lipid content of external high-grade fish meal at present.From fish meal, propose grease abroad and adopt solvent extraction technology, and, characteristics such as fines content big, difficult infiltration little according to the fish meal particle, adopt the immersion type leacher, " IMM " leacher (seeing Appendix 1) as Italian CMB company, do not filter collection type leacher and do not adopt, as flat-turn leacher, ring-like leacher etc., because fish meal directly leaches and can't operate with filter collection type leacher.Domestic for reducing the fish oil content in the fish meal, adopt twice pressing technology.But squeezing process itself has determined can not be clean with the squeezing of the fish oil in the fish meal.The lipid content of domestic fish meal is generally at 8-9% at present, and protein content is about 64%.Because lipid content is higher, easily deterioration is rotten, and particularly in summer, domestic fish meal difficulty is deposited.Yet there are no the report that proposes fish oil with lixiviation process at home.
The purpose of this invention is to provide a kind of novel method that from fish meal, proposes fish oil, utilize this method can solve the technical barrier that fish meal can not adopt filter collection type leacher to leach, and improve extraction efficiency.
Grease lixiviating process is a kind of advanced person's a oil-producing technique.With regard to oil extraction equipment, two classes are arranged: a class is filter collection type, and a class is an immersion type.Two kind equipments are compared, and filter collection type is owing to there being the drip-dry time, than immersion type leaching efficiency height.The leaching plant of present domestic employing is filter collection type.The contriver once used domestic flat-turn leacher commonly used (filter collection type) to carry out the direct leaching test of fish meal, found that buffer bin bridging, charging scraper plate feeding difficulty, leacher osmotic effect are poor, and contained more fish meal residue in the mixing oil.
General thought of the present invention is: the expanded granulation of fish meal after adopting expanded granulation process to squeezing with the fines content that reduces fish meal, particle and the permeability that increases fish meal, makes it be fit to use filter collection type leacher lixiviate grease.Particular content is: the fish meal that will squeeze carries out moisture to be regulated, and making the fish meal moisture that enters in the expanded tablets press is 8-20%.Be transported to then and carry out expanded granulation in the expanded tablets press, prilling temperature 100-130 ℃.Adjust a cutters rotating speed that of expanded tablets press, making the expanded material grain length of the fish meal degree after the cutting is 0.5-10mm, and optimum length is 2-3mm.Regulate moisture with plate dryer, making the moisture of the expanded material grain of fish meal that enters filter collection type leacher is 5-10%, leach by general grease lixiviating process then, promptly obtain lipid content about 1%, protein content about 70% fish meal and the hair fish oil.Hair fish oil can be used for industries such as feed, chemical industry through refining.
The present invention compared with prior art has following advantage:
A. after the expanded granulation, it is big to have solved the fish meal fines content, can not be with filtering the problem that collection type leacher leaches;
B. after the expanded granulation, it is big not only to have solved the fish meal fines content, and the fish meal puffed granule has porousness, helps the solvent infiltration, the extraction efficiency height.
C. it is low that the wet fish meal dregs of rice contain solvent, energy-saving and cost-reducing 10-15%.
Embodiment 1
Machine is pressed defatted fish flour (moisture 12%, fatty 10%, contain albumen 64%) to be transported in the extruding puffing tablets press; utilize steam and fricative heat; the drop temperature of expanded tablets press is transferred to 110 ℃; and regulating the discharging scraper speed, the 5mm the when powdery when making fish meal by charging becomes discharging is long, the puffed granule shape of moisture 8%.This puffed granule shape fish meal send flat turn leach the workshop grease lixiviating process leach routinely after, promptly get a high protein fish meal and a mao fish oil.The yield of the said products (pressing the fish meal wet basis in machine) is high protein fish meal 90.5%, hair fish oil 9%.The high protein fish meal is moisture 11%, fatty 1.0%, contain protein 70 %.
Embodiment 2
The machine press for extracting juice defatted fish flour of the not oven dry with moisture 30% is sent into and is dried to moisture 20% in the horizontal drum drying machine; be transported to then in the extruding puffing tablets press; utilize steam and fricative heat; the drop temperature of expanded tablets press is transferred to 130 ℃; and regulate the puffed granule shape that the powdery of discharging scraper speed when making fish meal by charging becomes discharging duration 3mm, this moment, particulate material moisture about 14%.Send plate dryer to dry this puffed granule shape fish meal, and then after delivering to ring-like leaching workshop grease lixiviating process leaching routinely, promptly get high protein fish meal and mao fish oil of moisture 12%, fat 1%, protein 70 % to moisture 10%.The yield of the said products (pressing the fish meal wet basis in dryer not) be high protein fish meal 71.5%, mao fish oil 8.2%.The high protein fish meal can be made feed etc., hair fish oil through can used as fodder oil after the refining, chemical industry is with oil, edible wet goods.
Grease in the suitable oil-containing material that the lixiviate granularity is little, fines content is big of the present invention.
Claims (2)
1, a kind of fish meal leaches oil extracting methods, it is characterized in that: a. enters the fish meal moisture 8-20% in the expanded tablets press, prilling temperature 100-130 ℃ to the expanded granulation of fish meal after squeezing; B. with the grease in the expanded material grain of filter collection type leacher lixiviate fish meal, the moisture 5-10% of the expanded material grain of fish meal, the length 0.5-10mm of the expanded material grain of fish meal.
2. fish meal according to claim 1 leaches oil extracting methods, and the length that it is characterized in that the expanded material grain of fish meal is 2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98110518A CN1090673C (en) | 1998-10-22 | 1998-10-22 | Fish powder puffing, pelletizing and oil extracting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98110518A CN1090673C (en) | 1998-10-22 | 1998-10-22 | Fish powder puffing, pelletizing and oil extracting technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1252435A CN1252435A (en) | 2000-05-10 |
| CN1090673C true CN1090673C (en) | 2002-09-11 |
Family
ID=5220558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98110518A Expired - Fee Related CN1090673C (en) | 1998-10-22 | 1998-10-22 | Fish powder puffing, pelletizing and oil extracting technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1090673C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651035A (en) * | 2013-11-19 | 2015-05-27 | 吴光平 | Fish meal puffed granulation leaching and oil-extraction method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864841A (en) * | 2014-03-12 | 2014-06-18 | 威海博宇食品有限公司 | Method for extracting and refining phospholipid from egg of aquatic animal |
-
1998
- 1998-10-22 CN CN98110518A patent/CN1090673C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651035A (en) * | 2013-11-19 | 2015-05-27 | 吴光平 | Fish meal puffed granulation leaching and oil-extraction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1252435A (en) | 2000-05-10 |
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