CN111454817A - Method and device for producing fermented feed raw material by using vinasse - Google Patents
Method and device for producing fermented feed raw material by using vinasse Download PDFInfo
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Abstract
The invention discloses a method and a device for producing fermented feed raw materials by using vinasse, wherein 70% of rice hulls in the vinasse dehydrated by an air heat pump are separated out to be subjected to chemical catalytic hydrolysis treatment to generate monosaccharide, disaccharide and oligosaccharide which are used as ideal carbon sources for microbial fermentation, and cheap inorganic nitrogen, namely ammonium, is used as main material and organic nitrogen in the distilled spirit vinasse after rice hulls are removed is used as auxiliary material to be converted into mycoprotein by domesticated hypertonic microorganisms, so that the crude protein content in the distilled spirit vinasse is increased to about 35% from about 15% originally.
Description
Technical Field
The invention relates to the field of feed raw material processing, in particular to a method and a device for producing fermented feed raw materials by using vinasse.
Background
1. According to the method, 23% of the total annual grain yield is used as feed in China, the China is a country with protein resource shortage, the imported amount of soybeans accounts for 80% of the required amount, the soybean meal after oil extraction is basically used as feed protein raw materials, and the fermented protein feed raw materials are prepared from protein-containing solid wastes such as distiller grains, brewer's grains and vinegar grains, so that the reduction of the imported soybeans has very important strategic significance.
2. Grain fermentation is used in liquor factories to prepare liquor, a large amount of liquor distiller grains with water content of about 80% are produced, and rice hulls account for 70% of the liquor distiller grains, so that the liquor distiller is easy to ferment and deteriorate and pollutes the environment. The distiller's grains are not feasible to be directly sold to breeding plants as raw materials of cattle and sheep feeds without any treatment, and epidemic infectious diseases are easy to occur. According to the regulation of the national standard GB 34330-2017 general rule for solid waste identification issued by the national ecological environment protection department of 8, 31 and 2017: "the product produced by utilizing the solid waste is required to meet the product quality standard of the substituted raw material production regulated by the state and the place or passed by the industry, the solid waste management is not carried out, and the product management is carried out according to the corresponding product management. "at least, the feed raw material standard of the dry white spirit vinasse with the water content less than or equal to 13% is processed, because the rice hull content is high, the crude protein content is low about 15%, even if the water content standard of the dry white spirit vinasse raw material is dehydrated and the dehydration cost is added, the yam economic benefit of manufacturers is not high, and the positivity is not high.
3. After the distiller's grains are pretreated, protein-containing raw materials or non-protein nitrogen raw materials are additionally added and are converted into protein nitrogen through microorganisms, and the content is improved to 25 percent or more, so that the method is a good choice.
4. The method is adopted for pretreatment to degrade crude fibers in the rice hulls into microorganisms for fermentation, a required carbon source is a key problem, and what cheap protein-containing raw materials are added to improve the content of crude protein in the second key problem, and the representative method in China is as follows:
(1) naturally drying the distiller's grains, screening, and removing rice hulls to be used as a supplement material of fuel. Adding wheat bran to supplement carbon source. (invention patent publication No. CN104982651A discloses a method for producing high protein distiller's grains feed), the method has the problems that the yield of feed raw materials is very low because 70% of rice husk is removed, the addition of wheat bran solves the problem of carbon source and protein source supplementation, the cost is very high, and the economic benefit is not very good.
(2) The invention discloses a high protein distiller's grains feed and a preparation method thereof, wherein rice hulls are not pretreated, wheat bran is added as a carbon source, the addition amount is 12.5-20% of the distiller's grains, organic nitrogen is mixed by silkworm chrysalis meal accounting for 12% of fresh distiller's grains as a nitrogen source and relatively high beer grains containing protein, and the content of crude protein is about 25% as a supplementary nitrogen source. Non-protein nitrogen ammonia salt is added as a quick-acting nitrogen source, the addition amount is 10-14% of the weight of the fresh white spirit vinasse, and the microorganisms of phanerochaete chrysosporium, pleurotus eryngii, white rot fungi, trichoderma and aspergillus niger which can decompose crude fibers are adopted to degrade cellulose, hemicellulose and lignin in the rice hulls step by step. The silkworm chrysalis powder contains 54 percent of crude protein per se, the brewer's grain contains 25 percent of protein, and the silkworm chrysalis powder has enough protein source, and the added multiple strains are used for decomposing crude fiber to solve the problem of carbon source, but the key problem is that no microorganism for forming new mycoprotein is added. Residual yeast mold in brewer's grains and distiller's grains is also inactivated. The multi-strain fermentation step is very complicated, and the added carbon source wheat bran and protein nitrogen silkworm chrysalis meal have high cost. The fermentation result of the patent only reduces the crude fiber content by 12-15%, increases the crude protein content to 25-28%, can be achieved without fermentation, costs high cost and price, and the crude protein content of the obtained fermented protein feed raw material is not high.
5. The invention discloses a method for producing protein feed raw materials by carrying out enzymolysis and fermentation on distiller's grains disclosed in patent publication No. CN1049050A, wherein the distiller's grains are pretreated, steam explosion is carried out at 180-250 ℃ under the pressure of 0.5-2.0 MPa for 1-10 min, cellulose, hemicellulose and lignin in rice hulls can be separated, only the hemicellulose is partially degraded, and the cellulose and the lignin are not degraded. But is beneficial to the next degradation of microorganisms and biological enzymes (but without the hydrolysis treatment of the invention, the degradation into sugars is good as an ideal carbon source for microorganisms). After the rice hull is pretreated, protease, cellulase, xylanase, phytase, amylase and glucoamylase are added, but the key lignin degrading trichoderma and laccase are lacked. The viable bacteria are Candida tropicalis, Bacillus, and Lactobacillus plantarum. The added xylanase, phytase and protease have no use, and the living bacteria are only useful for tropical saccharomycete, and can form new mycoprotein. In a word, the patent adopts raw material steam explosion pretreatment and biological enzymolysis, viable bacteria are added for fermentation, the content of crude protein of the raw material of the feed is increased to 25.25 percent, 25.85 percent and 26.14 percent from 15.05 percent of the distiller's grains, no raw material of any carbon source and nitrogen source is added, but the cost of adding 6 biological enzymes is high, and the process flow is complex.
Disclosure of Invention
One of the technical problems to be solved by the present invention is to provide a method for producing fermented feed material by using distiller's grains with low production cost and high crude protein content, aiming at the above disadvantages of the prior art for producing fermented feed material by using distiller's grains.
The second technical problem to be solved by the invention is to provide a device for producing fermented feed raw materials by using vinasse, which has low production cost and high crude protein content.
The method for producing a fermented feed material using pot ale as the first aspect of the present invention comprises the steps of:
the method comprises the following steps: vinasse treatment
Pressurizing and decompressing the vinasse by using an air heat pump, dewatering the vinasse by using a method of impacting a fixed target, screening, and separating rice hulls from the vinasse to obtain rice hull-removed vinasse;
step two: carrying out chemical catalytic hydrolysis treatment on the rice hulls obtained in the first step by adding a catalyst, and then carrying out centrifugal separation to generate a solution containing monosaccharide, disaccharide and oligosaccharide to be used as a microbial carbon source, and simultaneously separating lignin and silicon dioxide residues to be used as raw materials of an organic fertilizer;
step three: ingredients
Mixing the rice husk distiller's grains obtained in the step one, the solution containing monosaccharide, disaccharide and oligosaccharide obtained in the step two as a carbon source, inorganic ammonium as a non-protein nitrogen source, and adaptive acclimated and screened hypertonic bacteria solution and an additive in proportion by a computer;
step four: fermentation of
Performing solid fermentation treatment on the prepared material in the third step, and converting a mixed nitrogen source with monosaccharide, disaccharide, oligosaccharide and non-protein ammonium nitrate as main materials and organic nitrogen in distiller's grains as auxiliary materials into a feed raw material of mycoprotein by microorganisms;
step five: dehydrating and packaging
And (5) dehydrating the feed raw materials obtained in the step five at a low temperature by using an air heat pump, metering and packaging the feed raw materials, and warehousing the feed raw materials.
In a preferred embodiment of the present invention, in the first step, the distiller's grains are rice hull-containing distiller's grains of white spirit, rice hull-containing brewer's grains or rice hull-containing vinegar grains.
In a preferred embodiment of the invention, in the step one, the pressure of the air heat pump is controlled to be 0.1MPa to 0.8MPa when the dehydration is carried out by a method of carrying out pressurization and pressure release by using the air heat pump and impacting the fixed target at the same time, the pressurization time is 10min to 30min, the pressure is released to normal pressure to generate aerosol, the impact force generated by impacting the fixed target is simultaneously carried out, negative pressure dehydration in the form of aerosol is released for the second time, the water content of the reciprocating pressurization and pressure release impacting the fixed target reaches 20 percent to 50 percent, and the naturally generated compression heat heats the material to 60 ℃ to 90 ℃.
In a preferred embodiment of the invention, in the second step, the chemical catalytic hydrolysis is controlled by an air heat pump, the pressure of the air heat pump is controlled to be 1.0 MPa-3.0 MPa, the temperature generated by compressed heat is 100 ℃ to 200 ℃, and the hydrolysis time is 1 h-6 h.
In a preferred embodiment of the invention, in the second step, the catalyst is hydrochloric acid or organic acid, and the addition amount of the catalyst is 2% -8% of the dry weight of the rice hulls based on the standard concentration of the feed grade industry.
In a preferred embodiment of the present invention, the organic acid is one of acetic acid, propionic acid, butyric acid, lactic acid, or a combination of any two or more thereof.
In a preferred embodiment of the present invention, in step three, the inorganic ammonium is one or a mixture of any two or more of liquid ammonia, ammonia water, ammonium bicarbonate and ammonium sulfate.
In a preferred embodiment of the invention, in the third step, the addition amount of the inorganic ammonium is 5-15% of the mass of the de-husked distiller's grains of rice bran calculated by N.
In a preferred embodiment of the present invention, in step three, the adapted acclimatized and screened hypertonic bacteria solution is an ammonium salt solution with 5% -18% and is acclimatized and screened multiple times at different concentrations to adapt to hypertonic microorganisms mainly using organic protein nitrogen as an auxiliary and non-protein ammonium nitrites.
In a preferred embodiment of the present invention, in step three, the adapted acclimatized and screened hypertonic bacteria liquid is a mixed fermentation hypertonic bacteria liquid of aspergillus niger, aspergillus oryzae and yeast in aspergillus that 5% -18% ammonium salt solution is acclimatized and screened for multiple times at different concentrations to adapt to the use of organic protein nitrogen as an auxiliary and non-protein ammonium nitrogen as a main.
In a preferred embodiment of the invention, the additive is used to adjust the pH of the mixed computer ingredients to only the appropriate value in step three.
In a preferred embodiment of the invention, in step three, the additive is a nutrient element necessary for microbial fermentation, and specifically, salts containing calcium, magnesium and manganese and biotin.
The device for producing the fermented feed raw material by using the vinasse comprises a pressure-releasing impact flow dehydration device, a screening separation device, a first air heat pump, a chemical catalytic hydrolysis device, a second air heat pump, a centrifugal separation device, a rice husk and vinasse removing tank, a solid fermentation device, a computer mixing and batching device, a low-temperature dehydration device, a third air heat pump and a metering and packaging device; a feed inlet of the pressure-releasing impact flow dehydration device is connected with a discharge outlet of the vinasse groove, and an air inlet of the pressure-releasing impact flow dehydration device is connected with an air outlet of the first air heat pump; the discharge hole of the pressure-releasing impact flow dehydration device is connected with the feed inlet of the screening separation device; a rice hull outlet of the screening and separating device is connected with a rice hull inlet of the chemical catalytic hydrolysis device; the rice husk and vinasse outlet of the screening separation device is connected with the feed inlet of the rice husk and vinasse groove, the catalyst inlet of the chemical catalytic hydrolysis device is connected with the outlet of the catalyst groove, the discharge port of the chemical catalytic hydrolysis device is in butt joint with the feed inlet of the centrifugal separation device, and the air inlet of the chemical catalytic hydrolysis device is connected with the air outlet of the second air heat pump; a liquid discharge port of the centrifugal separation device is connected with a monosaccharide, disaccharide and oligosaccharide solution feed port of the computer mixing and batching device, an additive inlet of the computer mixing and batching device is connected with an outlet of the additive tank, a nitrogen source inlet of inorganic ammonium of the computer mixing and batching device is connected with an outlet of the nitrogen source tank of the inorganic ammonium, a domesticated and screened hypertonic microbial strain liquid inlet of the computer mixing and batching device is connected with a domesticated and screened hypertonic microbial strain liquid tank outlet, a discharge port of the computer mixing and batching device is connected with an inlet of the solid fermentation device, and an air inlet of the solid fermentation device is connected with a first outlet of the third air heat pump; the air material outlet of the solid fermentation device is connected with the feed inlet of the low-temperature dehydration device, the air inlet of the low-temperature dehydration device is connected with the second outlet of the third air heat pump, and the discharge outlet of the low-temperature dehydration device is connected with the feed inlet of the metering and packaging device.
The key technical characteristics of the invention are as follows due to the following technical scheme:
1. the rice husk in the distiller's grains is hydrolyzed into monosaccharide, disaccharide and oligosaccharide which are used as ideal carbon sources for microbial fermentation.
2. The method is characterized in that non-protein nitrogen is converted into microbial mycoprotein by hypertonic microbial fermentation of domesticated and screened high-concentration-resistant ammonium fermentation liquor, wherein the domesticated and screened high-concentration-resistant ammonium fermentation liquor mainly contains non-protein nitrogen ammonium and is supplemented with organic nitrogen in white spirit vinasse.
The invention has the advantages that:
1. carbon sources such as wheat bran and nitrogen sources such as silkworm chrysalis powder containing protein nitrogen are not added, so that the cost of the raw materials of the fermented feed is reduced.
2. The rice husk accounting for 70 percent of the total amount is separated and hydrolyzed to prepare monosaccharide, disaccharide and oligosaccharide which are used as ideal carbon sources for microbial fermentation, so that the content of crude fiber is greatly reduced, and the yield and the quality of the fermented feed raw materials are ensured.
3. Non-protein nitrogen ammonium is used to replace protein nitrogen to reduce the cost of the raw materials of the fermented feed.
4. The fermentation of the domesticated and screened hypertonic microorganism mixed bacteria is utilized to carry out microbial conversion to convert non-protein nitrogen into mycoprotein, so that the content of crude protein of the fermented feed raw material is as high as about 35 percent, which is 25 to 28 percent higher than that of the crude protein of the fermented protein feed raw material produced by the traditional fermentation technology.
The invention separates the rice hull and carries out chemical catalytic hydrolysis treatment which is superior to steam explosion treatment to directly hydrolyze cellulose and hemicellulose in the rice hull into micromolecular monosaccharide, disaccharide and oligosaccharide which are directly used as ideal carbon sources for microbial fermentation. The nitrogen source is inorganic ammonium without protein nitrogen, and the cheap inorganic nitrogen is converted into microbial mycoprotein by fermenting with fermenting microbe such as aspergillus and yeast, which mainly uses inorganic nitrogen and uses residual organic nitrogen, i.e. amino acid nitrogen and protein peptide in small amount of distiller's grains as auxiliary, so that the total crude protein content is up to 36%, the production cost is not high and is lower than that in the above patent, the crude protein content is higher than that in the above patent, and the technological process is simpler than that in the above patent.
Drawings
FIG. 1 is a schematic flow chart of the apparatus and method for producing fermented feed material using distiller's grains according to the present invention.
Detailed Description
The invention is further described below in conjunction with the appended drawings and detailed description.
Referring to fig. 1, the apparatus for producing fermented feed raw material by using distillers 'grains shown in the figure comprises a pressure-releasing impact flow dehydration device 10, a screening separation device 20, a first air heat pump 30, a chemical catalytic hydrolysis device 40, a second air heat pump 100, a centrifugal separation device 50, a rice husk-removing distillers' grain tank 60, a solid fermentation device 70, a computer mixing and batching device 80, a low-temperature dehydration device 90, a third air heat pump 170 and a metering and packaging device 110.
The feed inlet 11 of the pressure-releasing impact flow dehydration device 10 is connected with the discharge outlet 121 of the vinasse groove 120, and the air inlet 12 of the pressure-releasing impact flow dehydration device 10 is connected with the air outlet 31 of the first air heat pump 30; the discharge port 13 of the pressure-releasing impact flow dehydration device 10 is connected with the feed port 21 of the screening separation device 20.
The rice hull outlet 22 of the screening and separating device 20 is connected with the rice hull inlet 41 of the chemical catalytic hydrolysis device 40; the outlet 23 of the screening and separating device 20 is connected with the inlet 61 of the grain tank 60.
The catalyst inlet 42 of the chemical catalytic hydrolysis device 40 is connected with the outlet 131 of the catalyst tank 130, the discharge port 43 of the chemical catalytic hydrolysis device 40 is in butt joint with the feed port 51 of the centrifugal separation device 50, and the air inlet 44 of the chemical catalytic hydrolysis device 40 is connected with the air outlet 171 of the second air heat pump 170.
The liquid discharge port 52 of the centrifugal separation device 50 is connected with the monosaccharide, disaccharide and oligosaccharide solution feed port 81 of the computer mixing and proportioning device 80, and the solid discharge port 53 of the centrifugal separation device 50 outputs lignin and silicon dioxide residues.
The additive inlet 82 of the computer mixing and batching device 80 is connected with the outlet 141 of the additive tank 140, the inorganic ammonium nitrogen source inlet 83 of the computer mixing and batching device 80 is connected with the outlet 151 of the inorganic ammonium nitrogen source tank 150, the acclimated and screened hypertonic microbial bacteria liquid inlet 84 of the computer mixing and batching device 80 is connected with the outlet 161 of the acclimated and screened hypertonic microbial bacteria liquid tank 160, the rice husked vinasse 85 of the computer mixing and batching device 80 is connected with the discharge port 62 of the rice husked vinasse tank 60, and the discharge port 86 of the computer mixing and batching device 80 is connected with the inlet 71 of the solid fermentation device 70.
The air inlet 72 of the solid fermentation device 70 is connected with the first outlet 101 of the third air heat pump 100; the air material outlet 74 of the solid fermentation device 70 is connected with the feeding hole 91 of the low-temperature dehydration device 90, the air inlet 92 of the low-temperature dehydration device 90 is connected with the second outlet 102 of the third air heat pump 100, and the discharging hole 93 of the low-temperature dehydration device 90 is connected with the feeding hole 111 of the metering and packaging device 110.
The vinasse of the invention is vinasse containing rice hulls, brewer's grains containing rice hulls or vinegar grains containing rice hulls. A method for producing a fermented feed material from distiller's grains will be described below by taking distiller's grains as an example.
The method for producing the fermented feed raw material by using the distiller's grains comprises the following steps:
the method comprises the following steps: adding the distiller's grains with water content of about 80% into a pressurizing and pressure-releasing impact flow dehydration device 10, pressurizing and pressure-releasing to normal pressure by a first air heat pump 30, and dehydrating in the form of aerosol generated secondarily by impacting a fixed target, wherein the pressure of the air heat pump is controlled at 0.4Mpa, the pressurizing time is 10min, the pressure is released to normal pressure to generate aerosol, the impact force generated by impacting the fixed target is simultaneously performed, dehydrating in the form of aerosol released secondarily, the frequency of impacting the fixed target by reciprocating pressurizing and pressure-releasing is based on the water content of 40%, and the reciprocating frequency is 3 times. Naturally generated compression heat raises the temperature of the materials to 60 ℃ for screening, and rice hulls and other white spirit vinasse are separated.
Step two: the separated rice hulls are sent into a chemical catalytic hydrolysis device 40, a catalyst hydrochloric acid is added into the chemical catalytic hydrolysis device 40, the addition amount of the hydrochloric acid is 3% of the dry basis weight of the rice hulls on the basis of the standard concentration of 37%, a hydrochloric acid solution with the concentration of 10% is prepared, the pressure of a second air heat pump 170 controlled by catalytic hydrolysis is 0.9Mpa, the temperature generated by compression is 160 ℃, the hydrolysis time is 2 hours, then a solution containing monosaccharide, disaccharide and oligosaccharide is centrifugally separated out to serve as a carbon source of microorganisms, no additional carbon source is added, and the centrifugally separated solid phase is unhydrolyzed lignin and silicon dioxide serving as raw materials for producing organic fertilizers.
Step three: adding 5 percent of ammonium bicarbonate and ammonium sulfate which are calculated by N in a ratio of 1:1 as the fermentation material into a carbon source containing monosaccharide, disaccharide and oligosaccharide solution and a nitrogen source of inorganic ammonium to obtain the fermentation material. Besides nitrogen source additives, 5%, 10%, 15% and 18% of ammonium bicarbonate and 1:1 of ammonium sulfate are sequentially added into various microbial solutions to perform acclimation and screening on strains with different concentrations, and hypertonic microbial solution is prepared, which is a well-known and mature technology. The additive is a nutrient element necessary for microbial fermentation, specifically a salt containing calcium, magnesium and manganese and biotin, and belongs to a mature technology.
The microorganism strain is characterized in that inorganic nitrogen is used as a main component, organic nitrogen is used as an auxiliary component, high-permeability resistant aspergillus niger and high-permeability resistant saccharomycetes are used, a proper PH value is adjusted to be 4.5, and a high-permeability bacteria liquid prepared by domestication and screening, a monosaccharide, a disaccharide and oligosaccharide bacteria liquid, a white spirit vinasse solid material, ammonium bicarbonate and ammonium sulfate 1:1 ingredients and additives which contain 5 percent of N and are calculated are mixed by a computer mixing and blending device 80 according to a proportion, and the mixture is sent to a solid fermentation device 70 for solid fermentation. Computer dosing ratios and fermentation techniques are well known and published. The water content is controlled to be 55%, the high-permeability resistant microorganisms Aspergillus niger and microzyme are subjected to solid fermentation to convert a carbon source, non-protein nitrogen ammonium bicarbonate and ammonium sulfate into mycoprotein and residual non-protein nitrogen, the standard requirements are met, the fermentation control condition is mature and open technology, after the fermentation is finished, the temperature of an air heat pump is controlled to be 60 ℃, the drying and dehydration are carried out until the water content is less than or equal to 13%, and the fermented protein feed raw material is prepared, and the crude protein content is up to 36.2%. The crude fiber content was 6.98% and the crude ash content was 12.96%.
Claims (13)
1. A method for producing fermented feed raw materials by using vinasse is characterized by comprising the following steps:
the method comprises the following steps: vinasse treatment
Pressurizing and decompressing the vinasse by using an air heat pump, dewatering the vinasse by using a method of impacting a fixed target, screening, and separating rice hulls from the vinasse to obtain rice hull-removed vinasse;
step two: carrying out chemical catalytic hydrolysis treatment on the rice hulls obtained in the first step by adding a catalyst, and then carrying out centrifugal separation to generate a solution containing monosaccharide, disaccharide and oligosaccharide to be used as a microbial carbon source, and simultaneously separating lignin and silicon dioxide residues to be used as raw materials of an organic fertilizer;
step three: ingredients
Mixing the rice husk distiller's grains obtained in the step one, the solution containing monosaccharide, disaccharide and oligosaccharide obtained in the step two as a carbon source, inorganic ammonium as a non-protein nitrogen source, and adaptive acclimated and screened hypertonic bacteria solution and an additive in proportion by a computer;
step four: fermentation of
Performing solid fermentation treatment on the prepared material in the third step, and converting a mixed nitrogen source with monosaccharide, disaccharide, oligosaccharide and non-protein ammonium nitrate as main materials and organic nitrogen in distiller's grains as auxiliary materials into a feed raw material of mycoprotein by microorganisms;
step five: dehydrating and packaging
And (5) dehydrating the feed raw materials obtained in the step five at a low temperature by using an air heat pump, metering and packaging the feed raw materials, and warehousing the feed raw materials.
2. The method for producing a fermented feed material using pot ale according to claim 1, wherein the pot ale in the first step is rice hull-containing distiller's grains, rice hull-containing brewer's grains or rice hull-containing vinegar grains.
3. The method for producing fermented feed stuff using pot ale according to claim 1, wherein in the first step, the pressure of the air heat pump is controlled to 0.1 MPa-0.8 MPa when the dehydration is performed by the method of pressurizing and releasing pressure by the air heat pump and impacting the fixed target, the pressurizing time is 10 min-30 min, the pressure is released to normal pressure to generate aerosol, the impact force generated by impacting the fixed target is simultaneously performed, the negative pressure dehydration in the form of aerosol is secondarily released, the frequency of impacting the fixed target by reciprocating pressurizing and releasing pressure reaches 20% -50% of the water content, and the naturally generated compression heat raises the temperature of the material to 60 ℃ -90 ℃.
4. The method for producing fermented feed stuff using pot ale according to claim 1, wherein the chemical catalytic hydrolysis is controlled by an air heat pump in the second step, the pressure of the air heat pump is controlled to be 1.0 MPa-3.0 MPa, the temperature of compressed heat is 100 ℃ to 200 ℃, and the hydrolysis time is 1 h-6 h.
5. The method for producing fermented feed stuff using distiller's grains according to claim 1, wherein in the second step, the catalyst is hydrochloric acid or organic acid, and the amount of the catalyst added is 2-8% of the dry weight of rice hull based on the standard concentration of feed grade industry.
6. The method for producing fermented feed material using distiller's grains according to claim 5, wherein the organic acid is one or a combination of two or more of acetic acid, propionic acid, butyric acid and lactic acid.
7. The method for producing fermented feed stuff using pot ale according to claim 1, wherein the inorganic ammonium is one or a mixture of two or more of liquid ammonia, ammonia water, ammonium bicarbonate and ammonium sulfate in the third step.
8. The method for producing fermented feed stuff using pot ale according to claim 7, wherein the amount of the inorganic ammonium added in step three is 5-15% of the mass of the pot ale de-husked rice as N.
9. The method for producing fermented feed stuff using distiller's grains according to claim 1, wherein the acclimated and screened hypertonic bacteria solution is 5% -18% ammonium salt solution, and is acclimated and screened several times at different concentrations to adapt to hypertonic microorganisms mainly comprising organic protein nitrogen as an auxiliary and non-protein ammonium nitrate.
10. The method according to claim 1, wherein the acclimatized and screened hypertonic bacterium solution is a mixed fermentation hypertonic bacterium solution of aspergillus niger, aspergillus oryzae and yeast in aspergillus niger, aspergillus oryzae and aspergillus oryzae which are supplemented with organic protein nitrogen and mainly contain non-protein ammonium nitrogen.
11. The method of claim 1, wherein the additive is used to adjust the pH of the mixed computer ingredients to a suitable value in step three.
12. The method for producing fermented feed stuff using pot ale according to claim 11, wherein the additives are nutrient elements necessary for microbial fermentation, in particular salts containing calcium, magnesium, manganese and biotin in the third step.
13. A device for producing fermented feed raw materials by using vinasse comprises a pressure-releasing impact flow dehydration device, a screening separation device, a first air heat pump, a chemical catalytic hydrolysis device, a second air heat pump, a centrifugal separation device, a rice husk and vinasse removing tank, a solid fermentation device, a computer mixing and batching device, a low-temperature dehydration device, a third air heat pump and a metering and packaging device; a feed inlet of the pressure-releasing impact flow dehydration device is connected with a discharge outlet of the vinasse groove, and an air inlet of the pressure-releasing impact flow dehydration device is connected with an air outlet of the first air heat pump; the discharge hole of the pressure-releasing impact flow dehydration device is connected with the feed inlet of the screening separation device; a rice hull outlet of the screening and separating device is connected with a rice hull inlet of the chemical catalytic hydrolysis device; the rice husk and vinasse outlet of the screening separation device is connected with the feed inlet of the rice husk and vinasse groove, the catalyst inlet of the chemical catalytic hydrolysis device is connected with the outlet of the catalyst groove, the discharge port of the chemical catalytic hydrolysis device is in butt joint with the feed inlet of the centrifugal separation device, and the air inlet of the chemical catalytic hydrolysis device is connected with the air outlet of the second air heat pump; a liquid discharge port of the centrifugal separation device is connected with a monosaccharide, disaccharide and oligosaccharide solution feed port of the computer mixing and batching device, an additive inlet of the computer mixing and batching device is connected with an outlet of the additive tank, a nitrogen source inlet of inorganic ammonium of the computer mixing and batching device is connected with an outlet of the nitrogen source tank of the inorganic ammonium, a domesticated and screened hypertonic microbial strain liquid inlet of the computer mixing and batching device is connected with a domesticated and screened hypertonic microbial strain liquid tank outlet, a discharge port of the computer mixing and batching device is connected with an inlet of the solid fermentation device, and an air inlet of the solid fermentation device is connected with a first outlet of the third air heat pump; the air material outlet of the solid fermentation device is connected with the feed inlet of the low-temperature dehydration device, the air inlet of the low-temperature dehydration device is connected with the second outlet of the third air heat pump, and the discharge outlet of the low-temperature dehydration device is connected with the feed inlet of the metering and packaging device.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114196508A (en) * | 2021-12-16 | 2022-03-18 | 中建安装集团有限公司 | Energy-saving device and process for producing protein feed by using vinasse |
| CN114886133A (en) * | 2022-03-26 | 2022-08-12 | 刘文治 | Complete equipment for producing feed raw materials by utilizing fermented grains containing a large amount of rice husks |
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2020
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114196508A (en) * | 2021-12-16 | 2022-03-18 | 中建安装集团有限公司 | Energy-saving device and process for producing protein feed by using vinasse |
| CN114196508B (en) * | 2021-12-16 | 2024-02-06 | 中建安装集团有限公司 | Energy-saving device and process for producing protein feed by using vinasse |
| CN114886133A (en) * | 2022-03-26 | 2022-08-12 | 刘文治 | Complete equipment for producing feed raw materials by utilizing fermented grains containing a large amount of rice husks |
| CN114886133B (en) * | 2022-03-26 | 2023-10-17 | 刘文治 | Complete set of equipment for producing feed raw material by using fermentation tank containing large quantity of rice husk |
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