CN106135631B - Extraction process for extracting animal protein from waste residue water generated in steam refining of lard oil - Google Patents
Extraction process for extracting animal protein from waste residue water generated in steam refining of lard oil Download PDFInfo
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- CN106135631B CN106135631B CN201610543732.4A CN201610543732A CN106135631B CN 106135631 B CN106135631 B CN 106135631B CN 201610543732 A CN201610543732 A CN 201610543732A CN 106135631 B CN106135631 B CN 106135631B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000007670 refining Methods 0.000 title claims abstract description 26
- 235000021120 animal protein Nutrition 0.000 title claims abstract description 16
- 239000002699 waste material Substances 0.000 title claims abstract description 15
- 238000000605 extraction Methods 0.000 title claims abstract description 13
- 239000010699 lard oil Substances 0.000 title claims abstract description 11
- 239000003921 oil Substances 0.000 claims abstract description 95
- 235000018102 proteins Nutrition 0.000 claims abstract description 89
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 89
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 89
- 238000010025 steaming Methods 0.000 claims abstract description 35
- 235000015277 pork Nutrition 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 18
- 235000012054 meals Nutrition 0.000 claims abstract description 15
- 235000013372 meat Nutrition 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- 238000001556 precipitation Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 46
- 238000001694 spray drying Methods 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 12
- 238000001704 evaporation Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 210000001596 intra-abdominal fat Anatomy 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 239000012808 vapor phase Substances 0.000 claims description 2
- 238000004821 distillation Methods 0.000 claims 5
- 238000000227 grinding Methods 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 230000008016 vaporization Effects 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000004519 grease Substances 0.000 abstract 2
- 238000000855 fermentation Methods 0.000 description 7
- 230000004151 fermentation Effects 0.000 description 7
- 239000010865 sewage Substances 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 241000254137 Cicadidae Species 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 241000931705 Cicada Species 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 150000001720 carbohydrates Chemical class 0.000 description 2
- 230000001054 cortical effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 238000000751 protein extraction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 101710089395 Oleosin Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000003674 animal food additive Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000009690 centrifugal atomisation Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 235000004252 protein component Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
- A23J1/00—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites
- A23J1/001—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites from waste materials, e.g. kitchen waste
- A23J1/002—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites from waste materials, e.g. kitchen waste from animal waste materials
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/14—Extraction; Separation; Purification
- C07K1/145—Extraction; Separation; Purification by extraction or solubilisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/14—Extraction; Separation; Purification
- C07K1/30—Extraction; Separation; Purification by precipitation
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Genetics & Genomics (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Zoology (AREA)
- Processing Of Solid Wastes (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses an extraction process for extracting animal protein from waste residue water generated in the process of refining lard oil by steam, which comprises the following steps: s1, putting the pork fat raw material into a crushing device, starting the crushing device to crush the pork fat raw material to obtain a pork fat crushed material; s2, putting the pork fat mince into an oil steaming pressure tank, sealing the oil steaming pressure tank, injecting steam into a main pipeline of the oil steaming pressure tank, wherein the pressure of the steam injected into the main pipeline is 0.8-1.6MPa, stopping pressurizing when the pressure in the oil steaming pressure tank reaches 0.39-0.41MPa, refining the pork fat mince in the sealed constant-pressure oil steaming pressure tank for 3-4h, adding top pressure precipitation layering to the pressure tank through different physical densities, and directly extracting the grease to obtain a protein mixture at the bottom, wherein the protein mixture comprises grease, meat meal residues and a protein mixed solution. The invention solves the problems of difficult treatment and environmental pollution after the steam oil refining wastewater is fermented, can be environment-friendly, can extract and recover animal protein, and is suitable for large-scale popularization.
Description
Technical Field
The invention relates to the technical field of animal protein extraction, in particular to an extraction process for extracting animal protein from waste residue water generated in the process of refining lard oil by steam.
Background
COD in the mixed solution after the animals are refined by steam is as high as 5-7 ten thousand, total phosphorus is 400-; the treatment cost is high, the influence on environmental pollution is more, the sewage treatment is the direct input waste of the cost, but no valuable substance is recycled, so that the extraction process for extracting the animal protein from the waste residue water generated by the steam refining of the lard oil is provided for solving the problems.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an extraction process for extracting animal protein from waste residue water generated in the process of refining lard oil by steam.
The invention provides an extraction process for extracting animal protein from waste residue water generated by refining lard oil by steam, which comprises the following steps:
s1, putting the pork fat raw material into a crushing device, starting the crushing device to crush the pork fat raw material to obtain a pork fat crushed material;
s2, putting the pork fat mince into an oil steaming pressure tank, sealing the oil steaming pressure tank, injecting steam into a main pipeline of the oil steaming pressure tank, wherein the pressure of the steam injected into the main pipeline is 0.8-1.6MPa, stopping pressurizing when the pressure in the oil steaming pressure tank reaches 0.39-0.41MPa, refining the pork fat mince in the sealed constant-pressure oil steaming pressure tank for 3-4h, adding top pressure precipitation layering to the pressure tank through different physical densities, and directly extracting oil to obtain a protein mixture at the bottom, wherein the protein mixture comprises oil, meat meal residues and a protein mixed solution;
s3, putting the protein mixture into a horizontal screw centrifuge, starting a machine to centrifuge to obtain oil, protein mixed liquid and meat meal residues, introducing the oil into a storage tank to be collected, then putting the residual protein mixed liquid into the centrifuge to separate fine residues, oil and protein water in the protein mixed liquid, recovering the oil separated from the protein mixed liquid, pouring the oil into the storage tank, and collecting the protein water for later use;
and S4, concentrating the protein mixed solution in an evaporator, evaporating 85-88% of water from the protein mixed solution according to protein content parameters, and spray drying to obtain protein powder.
Preferably, the pig fat raw material is one or more of fat, visceral oil, fat oil and cortical oil.
Preferably, in S2, the minced pork fat is placed in an oil steaming pressure tank, the oil steaming pressure tank is sealed, steam is injected into a main pipeline of the oil steaming pressure tank, the pressure of the steam injected into the main pipeline is 1.2MPa, pressurization is stopped when the pressure in the oil steaming pressure tank reaches 0.4MPa, the minced pork fat is refined in the oil steaming pressure tank with a sealed constant pressure for 3.5 hours, a top pressure is added to the pressure tank through different physical densities to precipitate and stratify, a protein mixture is obtained at the bottom after the oil is directly extracted, and the protein mixture comprises oil, meat meal residues and a protein mixed solution.
Preferably, the spray drying is centrifugal spray drying or high pressure spray drying.
Preferably, the crushing device is one of a chopping pan, a stirrer and a crusher.
In the invention, the extracted protein is animal protein, and the protein contains 17 amino acid components required by animals after assay; the steam oil refining process is refined, water with COD of more than 5 ten thousand can be purified to clear water with COD of less than 200 through subsequent evaporation, concentration and purification, the problems of difficult treatment and environmental pollution after the fermentation of the oil refining wastewater are solved, the environment is protected, protein can be recovered, the application range of the protein can reach human eating, animal feed addition and the like, the process is simple, waste can be changed into valuable, and the steam oil refining process is suitable for large-scale popularization.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Example one
The invention provides an extraction process for extracting animal protein from waste residue water generated by refining lard oil by steam, which comprises the following steps:
s1, putting the pork fat raw material into a crushing device, starting the crushing device to crush the pork fat raw material to obtain a pork fat crushed material;
s2, putting the pork fat mince into an oil steaming pressure tank, sealing the oil steaming pressure tank, injecting steam into a main pipeline of the oil steaming pressure tank, wherein the pressure of the steam injected into the main pipeline is 0.8MPa, stopping pressurizing when the pressure in the oil steaming pressure tank reaches 0.39MPa, refining the pork fat mince in the closed constant-pressure oil steaming pressure tank for 3 hours, adding top pressure precipitation layering to the pressure tank through different physical densities, and directly extracting oil to obtain a protein mixture at the bottom, wherein the protein mixture comprises oil, meat meal and protein mixed liquid;
s3, putting the protein mixture into a horizontal screw centrifuge, starting a machine to centrifuge to obtain oil, protein mixed liquid and meat meal residues, introducing the oil into a storage tank to be collected, then putting the residual protein mixed liquid into the centrifuge to separate fine residues, oil and protein water in the protein mixed liquid, recovering the oil separated from the protein mixed liquid, pouring the oil into the storage tank, and collecting the protein water for later use;
and S4, feeding the protein mixed liquor into an evaporator for concentration, evaporating 85% of water from the protein mixed liquor according to protein content parameters, and spray drying to obtain protein substance powder.
In the invention, the pig fat raw material is one or more of fat, visceral oil, fat oil and cortical oil. The spray drying is centrifugal atomization drying or high-pressure spray drying. The crushing equipment is one of a chopping and mixing pot, a stirrer and a crusher.
Example two
The invention provides an extraction process for extracting animal protein from waste residue water generated by refining lard oil by steam, which comprises the following steps:
s1, putting the pork fat raw material into a crushing device, starting the crushing device to crush the pork fat raw material to obtain a pork fat crushed material;
s2, putting the minced pork fat into an oil steaming pressure tank, sealing the oil steaming pressure tank, injecting steam into a main pipeline of the oil steaming pressure tank, wherein the pressure of the steam injected into the main pipeline is 1.2MPa, stopping pressurizing when the pressure in the oil steaming pressure tank reaches 0.4MPa, refining the minced pork fat in the closed constant-pressure oil steaming pressure tank for 3.5 hours, adding top pressure precipitation and delamination into the pressure tank through different physical densities, and directly extracting the oil to obtain a protein mixture at the bottom, wherein the protein mixture comprises 0.5-1.5% of oil, meat meal residues and 4-6% of protein mixed liquid;
s3, putting the protein mixture into a horizontal screw centrifuge, starting a machine to centrifuge out oil, protein mixed liquid and meat meal residues, introducing the oil into a storage tank to be collected, separating the residual protein mixed liquid by the centrifuge, separating fine residues, oil and protein water in the protein mixed liquid, recovering the oil separated from the protein mixed liquid, pouring the oil into the storage tank, lightly moving the oil when the storage tank is filled with a vehicle, not extruding, colliding, destroying a barrel, stacking the layers: less than or equal to 3 layers of 50 kg/barrel, less than or equal to 6 layers of 20 kg/barrel and less than or equal to 9 layers of 9 kg/barrel; storage temperature: collecting protein water at a temperature of less than or equal to 18 deg.C;
and S4, feeding the protein mixed liquor into an evaporator for concentration, evaporating 86% of water from the protein mixed liquor according to protein content parameters, and spray drying to obtain protein substance powder.
EXAMPLE III
The invention provides an extraction process for extracting animal protein from waste residue water generated by refining lard oil by steam, which comprises the following steps:
s1, putting the pork fat raw material into a crushing device, starting the crushing device to crush the pork fat raw material to obtain a pork fat crushed material;
s2, putting the pork fat mince into an oil steaming pressure tank, sealing the oil steaming pressure tank, injecting steam into a main pipeline of the oil steaming pressure tank, wherein the pressure of the steam injected into the main pipeline is 1.6MPa, stopping pressurizing when the pressure in the oil steaming pressure tank reaches 0.41MPa, refining the pork fat mince in the closed constant-pressure oil steaming pressure tank for 4 hours, adding top pressure precipitation layering to the pressure tank through different physical densities, and directly extracting the oil to obtain a protein mixture at the bottom, wherein the protein mixture comprises oil, meat meal and protein mixed liquid;
s3, putting the protein mixture into a horizontal screw centrifuge, starting a machine to centrifuge to obtain oil, protein mixed liquid and meat meal residues, introducing the oil into a storage tank to be collected, then putting the residual protein mixed liquid into the centrifuge to separate fine residues, oil and protein water in the protein mixed liquid, recovering the oil separated from the protein mixed liquid, pouring the oil into the storage tank, and collecting the protein water for later use;
and S4, feeding the protein mixed liquor into an evaporator for concentration, evaporating 88% of water from the protein mixed liquor according to protein content parameters, and spray drying to obtain protein material powder.
In the invention, in order to prove the existence of protein in the waste residue water, the following experiments are carried out:
experiments I, inquiring about the nutritive value analysis of the cicadas, wherein the maximum nutritive value protein content of the cicadas is 72%, placing a frozen cicada in a container environment at the temperature of 25-30 ℃, and observing the change process of the cicadas by prolonging different time. After 48 hours the cicada had gone out of water, was dark and had a foul smell. The more pronounced its chemical fission is with time.
Experiment II, putting part of the oil refining slag water (mixed liquid) into a sealed vessel, performing 24-hour fermentation, 48-hour fermentation and 60-hour fermentation, comparing the fermentation in one week and the fermentation in one month, finding that part of combustible gas can be generated, simultaneously mixing viscous substances can occur, separating out part of clear water, and analyzing that the mixed liquid contains part of organic matters.
And thirdly, taking the dry matter on the floating surface layer of the oil refining slag water (mixed liquid) fermentation tank, drying the dry matter in the sun, and igniting the dry matter by using fire, thereby proving that the oil refining slag water mixed liquid contains organic matters.
And fourthly, performing physicochemical analysis on fresh slag water (mixed liquor), and performing assay analysis on protein, ash, carbohydrate and the like to obtain that the mixed liquor contains 4-6% of protein, so that the existence of substances with recyclable values is proved, and a foundation is laid for extracting the protein.
The invention firstly starts from the slag liquid water, chemically analyzes the content of the components of the oil refining wastewater, finds out the reason for the difficult treatment of the sewage and whether the sewage contains recyclable substances.
According to continuous experimental comparison, protein components are found in the wastewater, in order to judge the protein content more accurately, a viscous black concentrated liquid substance is obtained after partial moisture is evaporated, and the black concentrated liquid substance is analyzed to be high in protein content and contains substances such as carbohydrate, ash, amino acid, fat, energy and the like, so that the black concentrated liquid substance is an ideal feed additive. Therefore, the protein substance in the mixed solution can be extracted possibly, the evaporated water does not pollute the environment any more, relevant equipment such as a centrifugal machine, a concentration evaporator, a spray dryer and the like is continuously searched in the market according to the evaporation idea, the animal protein can be extracted in batch production through experiments and customized equipment, and the problem of sewage can be thoroughly solved.
By searching for experimental equipment for extraction, 0.06kg of protein substances can be extracted from 100kg of slag liquid, no waste liquid is generated, the evaporated and cooled waste water is clear, the COD is less than 120, and the content of ammonia nitrogen is about 100. The animal protein is obtained while solving the problem of waste water, so that the high cost of sewage treatment is solved, and profit space can be obtained. The historical problem of steam refining is changed, and the market value of the process is further improved.
In the protein extraction process, the rotating speed of a centrifugal machine is 3600 r/min or more, the solid phase of the meat meal is removed by centrifugation, the liquid phase of the meat meal discharges protein mixed liquor, and the higher the temperature of the mixed liquor is, the more energy is saved by concentration equipment; the temperature of the first effect is concentrated to be less than or equal to 75 ℃, the temperature of the second effect is less than or equal to 57 ℃, and the temperature of the third effect is about 45 ℃, so that the problems of scaling, viscosity and the like of feed liquid are prevented, and equipment plugging is caused; the spray drying is to convey the feed liquid by a screw pump of more than 0.6mpa, atomize the feed liquid instantly by an atomizing disc rotating at high speed of 12000 r/min, and evaporate and separate the water by the blown hot air, thereby achieving the effect of drying into powder.
When the residue liquid is evaporated in the evaporator, the separated residue liquid medium is uniform, the oleosin dilute solution is pumped into a three-effect circulating pump through a TVR multi-effect evaporation automatic control system, after the triple-effect circulating pump obtains kinetic energy, the kinetic energy enters an upper material chamber of a triple-effect heater E-3 and is uniformly distributed to each heat exchange tube through a material distribution element, the materials flow from top to bottom in a film-shaped manner on the inner wall of the heat exchange tube, the materials exchange heat with steam of a shell pass in the flowing process, latent heat generated by condensation of the steam of the shell pass heats the materials to a boiling point, the materials heated to the boiling point are gathered in a lower material chamber of the heater and are subjected to primary vapor-liquid separation, the vapor phase enters a triple-effect separator S-3 for complete vapor-liquid separation, the underflow of the lower material chamber of the heater and the separator enters the triple-effect circulating pump, and the underflow of the lower material chamber of the heater and the separator enters the next. And through online density detection, when the dry matter content of the material reaches or approaches 50% of the designed discharging concentration, the three-way valve automatically switches to the discharging direction, and the material is conveyed to the finished product tank.
The operation of the working procedure only uses electricity and steam, 85 to 88 percent of moisture in the protein liquid is concentrated, and the moisture in the evaporated protein mixed liquid is condensed and collected and then discharged to a sewage plant for treatment. The steam condensate water can be recycled without pollutants.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. An extraction process for extracting animal protein from waste residue water generated in the process of refining lard oil by steam is characterized by comprising the following steps:
s1, putting the pork fat raw material into a crushing device, starting the crushing device to crush the pork fat raw material to obtain a pork fat crushed material;
s2, putting the pork fat mince into an oil steaming pressure tank, sealing the oil steaming pressure tank, injecting steam into a main pipeline of the oil steaming pressure tank, wherein the pressure of the steam injected into the main pipeline is 0.8-1.6MPa, stopping pressurizing when the pressure in the oil steaming pressure tank reaches 0.39-0.41MPa, refining the pork fat mince in the oil steaming pressure tank with sealed constant pressure for 3-4h, adding top pressure precipitation layering to the pressure tank through different physical densities, and directly extracting oil to obtain a protein mixture at the bottom, wherein the protein mixture comprises oil, meat meal residues and a protein mixed solution;
s3, putting the protein mixture into a horizontal screw centrifuge, starting the machine to centrifuge at 3600 r/min to obtain oil, protein mixed liquid and meat meal residues, introducing the oil into a storage tank to be collected, separating the residual protein mixed liquid in the centrifuge to obtain fine residues, oil and protein water in the protein mixed liquid, recovering the oil separated from the protein mixed liquid, pouring the oil into the storage tank, and collecting the protein water for later use;
s4, feeding the protein water into an evaporator for concentration, evaporating 85% -88% of water from the protein water according to protein content parameters, and spray drying to obtain protein substance powder;
wherein the concentration method comprises the following steps:
the protein water obtains kinetic energy by the triple-effect circulating pump and is pumped to an upper material chamber of the triple-effect heater, the protein water is uniformly distributed to each heat exchange tube by a material distribution element, the materials flow from top to bottom in a film-forming shape on the inner wall of the heat exchange tube, the materials exchange heat with steam of a shell pass in the flowing process, latent heat generated by condensation of the steam of the shell pass heats the materials to a boiling point, the materials heated to the boiling point are gathered in the lower material chamber of the heater and are subjected to preliminary vapor-liquid separation, the vapor phase enters the triple-effect separator for thorough vapor-liquid separation, the underflow of the lower material chamber of the heater and the separator enters the triple-effect circulating pump, and the next circulation is formed after the underflow of the lower material chamber of;
wherein the spraying method comprises conveying the feed liquid by screw pump of 0.6MPa or above, atomizing the feed liquid by atomizing disc rotating at high speed of 12000 r/min, and vaporizing and separating water with blown hot air.
2. The process of claim 1, wherein the raw material of lard is one or more selected from fat, visceral oil, fat oil and skin oil.
3. The process of claim 1, wherein in step S2, the minced pork fat is placed in an oil distillation pressure tank, the oil distillation pressure tank is sealed, steam is injected into a main pipeline of the oil distillation pressure tank, the pressure of the steam injected into the main pipeline is 1.2MPa, pressurization is stopped when the pressure in the oil distillation pressure tank reaches 0.4MPa, the minced pork fat is refined in the oil distillation pressure tank for 3.5 hours, and a top pressure precipitation layer is added to the pressure tank through different physical densities to obtain a protein mixture at the bottom after direct extraction of the fat, wherein the protein mixture comprises a mixture of the fat, the meat meal residue and the protein.
4. The process of claim 1, wherein the spray drying is centrifugal spray drying or high pressure spray drying.
5. The process of claim 1, wherein the grinding device is one of a chopper, a blender, and a grinder.
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| CN107460038A (en) * | 2017-08-31 | 2017-12-12 | 安徽天祥粮油食品有限公司 | A kind of extracting method of refined lard |
| CN107841372A (en) * | 2017-12-07 | 2018-03-27 | 莱阳易农农牧设备有限公司 | Animal fat refining equipment and method |
| CN108056215A (en) * | 2017-12-07 | 2018-05-22 | 莱阳易农农牧设备有限公司 | Production technique of animal protein powder |
| CN108271872A (en) * | 2017-12-19 | 2018-07-13 | 安徽牧洋油脂有限公司 | A kind of mellowness lard and preparation method thereof |
| CN110331040A (en) * | 2019-07-08 | 2019-10-15 | 河北金谷再生资源开发有限公司 | Technical grade animal oil technique is produced using waste leather animal oil |
| CN114480016B (en) * | 2022-01-27 | 2024-03-19 | 山东智鼎食品科技有限公司 | Method for enhancing fragrance of grease by using animal grease steaming byproducts |
| CN114480547A (en) * | 2022-03-09 | 2022-05-13 | 山东智鼎食品科技有限公司 | Method for producing micromolecule hydrolyzed animal protein peptide by utilizing animal fat wet-process refining by-product |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS63105652A (en) * | 1986-10-22 | 1988-05-10 | Meiji Seika Kaisha Ltd | Production of natural protein seasoning |
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| CN1127299C (en) * | 2000-03-30 | 2003-11-12 | 上海杰隆生物工程股份有限公司 | Process for preparing animal plasma protein powder |
| CN101138386B (en) * | 2006-09-06 | 2010-12-29 | 宁波开诚牧业设备制造有限公司 | Method for producing feedstuff coarse albumen powder by kitchen waste |
| CN102793053A (en) * | 2012-08-22 | 2012-11-28 | 天津宝迪农业科技股份有限公司 | Technology for producing high-protein content and low-ash content plasma protein powder |
| CN104531334A (en) * | 2014-12-24 | 2015-04-22 | 江南大学 | Clean production process for simultaneously extracting lipid and collagen from animal fat tissues |
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| JPS63105652A (en) * | 1986-10-22 | 1988-05-10 | Meiji Seika Kaisha Ltd | Production of natural protein seasoning |
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