CN110950697A - Method for preparing liquid organic fertilizer from bean curd yellow serofluid - Google Patents
Method for preparing liquid organic fertilizer from bean curd yellow serofluid Download PDFInfo
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- CN110950697A CN110950697A CN201911367857.6A CN201911367857A CN110950697A CN 110950697 A CN110950697 A CN 110950697A CN 201911367857 A CN201911367857 A CN 201911367857A CN 110950697 A CN110950697 A CN 110950697A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention discloses a method for preparing a liquid organic fertilizer from bean curd yellow serofluid, wherein the liquid organic fertilizer is prepared from the following raw materials in parts by weight: 30-50 parts of bean curd yellow serofluid, 10-15 parts of urea, 10-15 parts of diammonium hydrogen phosphate, 10-15 parts of potassium nitrate and 15-20 parts of deionized water; make waste material reuse as the raw materials with bean curd yellow serofluid, the risk that the organic matter in the bean curd yellow serofluid causes the pollution to the environment has been reduced, a fermentation cylinder has been used at the in-process of preparing liquid organic fertilizer simultaneously, this fermentation cylinder is through first drive gear, the second drive gear, fixed gear, the revolving stage, the pivot, the roller, the foam that the defoaming needle will stir and ferment and produce thoroughly eliminates, and add oxygen in the fermentation storehouse through the inlet head, many inlet heads and inlet port make the fermented material can be more abundant with the oxygen contact, and then promoted fermentation efficiency, the preparation time of liquid organic fertilizer has been reduced.
Description
Technical Field
The invention belongs to the field of liquid fertilizers, and particularly relates to a method for preparing a liquid organic fertilizer from bean curd yellow serofluid.
Background
Soybean is one of the plants with the highest protein content and contains various amino acids, and due to the traditional habit, the soybean product mainly comprises bean curd and bean curd products, in the bean curd processing process, water which is ten times of the dry weight of the soybean is required to be added for grinding into slurry, wherein 1/2-1/3 water is leached out in the processing process to form yellow slurry water, the yellow slurry water is directly discharged as waste at present, and the yellow slurry water contains rich organic matters and various free amino acids, so that the waste of nutrient substances and the pollution to the environment are caused;
the traditional liquid organic fertilizer can be fermented in the preparation process, and a fermentation tank can be used in the fermentation process, Chinese patent CN102206575A discloses a fermentation tank, wherein a stirring device is arranged in a tank body of the fermentation tank, a first pipeline communicated with the interior of the tank body is arranged at the bottom of the tank body, an air pipe positioned outside the tank body is connected with the first pipeline through a three-way valve, an air guide device is arranged on the inner bottom surface of the tank body, the lower end of the air guide device is positioned right above the first pipeline, and the upper end of the air guide device is positioned right below the stirring device, the invention improves the efficiency of gas-liquid mixing, liquid-liquid mixing and mass transfer through a composite stirrer of radial mixing and axial mixing of the stirring device, and the required energy is more saved, but a large amount of foam appears in the stirring and fermentation processes, so that the fermentation process is influenced, thereby influencing the preparation efficiency of the liquid organic fertilizer.
Disclosure of Invention
The invention aims to provide a method for preparing liquid organic fertilizer by using bean curd yellow serofluid.
The technical problems to be solved by the invention are as follows:
1. in the process of making bean curd, water which is ten times of the dry weight of soybeans is added to grind into slurry, wherein 1/2-1/3 water is leached out in the processing process to form yellow slurry water, the yellow slurry water is directly discharged as waste at present, and the yellow slurry water contains rich organic matters and various free amino acids, so that the waste of nutrient substances and the pollution to the environment are caused;
2. traditional liquid organic fertilizer can ferment in the preparation process, and traditional fermentation cylinder is stirring and fermentation in-process, and the fermentation broth surface can produce the foam, and the too much foam can make the zymotic fluid appear escaping the liquid phenomenon, has increased the microbiological contamination probably, seriously influences liquid organic fertilizer's quality, and traditional fermentation cylinder is single air inlet for the zymotic fluid is not thorough with the oxygen contact, has influenced fermentation efficiency.
The purpose of the invention can be realized by the following technical scheme:
a method for preparing liquid organic fertilizer from bean curd yellow serofluid comprises the following raw materials in parts by weight: 30-50 parts of bean curd yellow serofluid, 10-15 parts of urea, 10-15 parts of diammonium hydrogen phosphate, 10-15 parts of potassium nitrate and 15-20 parts of deionized water;
the preparation method of the liquid organic fertilizer comprises the following steps:
step S1: filtering the bean curd yellow serofluid to remove filter residue, adding the filtered bean curd yellow serofluid into a reaction kettle, heating at 60-70 deg.C for 30-45min, and desalting with strong acid ion exchange resin exchange column to obtain bean curd yellow serofluid stock solution;
step S2: adding the bean curd yellow slurry stock solution prepared in the step S1 and yeast into a fermentation bin from a feeding hole, closing a sealing valve in the feeding hole, starting a heater to enable the temperature to reach 22-25 ℃, turning on a motor, driving a stirring rod to rotate by the output end of the motor, driving a stirring blade to rotate at the rotation speed of 200 plus one year/min by the stirring rod, driving a rotating platform to rotate by the stirring rod, driving a first transmission gear to rotate by taking the stirring rod as an axis by the rotating platform, meshing the first transmission gear with a fixed gear to enable the first transmission gear to rotate, driving a second transmission gear to rotate by the first transmission gear, driving a rotating shaft to rotate by the second transmission gear, driving a roller shaft to rotate by the rotating shaft, pressurizing air by an air compressor, filtering impurities in the air by an air filter, and feeding the air into the fermentation bin from an air inlet head along an air inlet main pipe and an air, after primary fermentation is carried out for 20-24h, a discharging valve is opened, and filter residue is removed by filtering a filter sieve plate to obtain a primary fermentation liquid of the bean curd yellow serofluid;
step S3: adding urea, diammonium hydrogen phosphate, potassium nitrate and deionized water into a stirring kettle, stirring for 5-10min at the rotation speed of 1000-1200r/min, adding the bean curd yellow serofluid primary fermentation liquid prepared in the step S2, and stirring for 20-30min at the rotation speed of 1000-1200r/min to prepare a mixed liquid;
step S4: adding the mixed liquid and yeast prepared in the step S3 into a fermentation bin from a feed inlet, closing a sealing valve in the feed inlet, starting a heater to enable the temperature to reach 22-25 ℃, opening a motor, driving a stirring rod to rotate by an output end of the motor, driving a stirring blade to rotate at a rotating speed of 200 plus one (300 r/min) by the stirring rod, driving a rotating platform to rotate by the stirring rod, driving a first transmission gear to rotate by taking the stirring rod as an axis by the rotating platform, meshing the first transmission gear with a fixed gear to enable the first transmission gear to rotate, driving a second transmission gear to rotate by the first transmission gear, driving a rotating shaft to rotate by the second transmission gear, driving a roller shaft to rotate by the rotating shaft, pressurizing air by an air compressor, filtering the air by an air filter, filtering out impurities in the air, feeding the air into the fermentation bin from an air inlet head along an air inlet main pipe and an air inlet, and (3) preparing a secondary fermentation liquid, adding potassium hydroxide into the secondary fermentation liquid until the pH value of the secondary fermentation liquid is 7, opening a discharge valve, and filtering through a filter sieve plate to remove filter residues to obtain the liquid organic fertilizer.
Further, the fermentation tank of step S2 and step S4, which comprises a tank body, a fermentation chamber, the fermentation chamber is located the inside of the tank body, the outside top of the tank body is fixed with a motor, the output of motor is fixed with the puddler, the puddler passes the last top wall of the tank body and fermentation chamber in proper order, the puddler rotates with the last top wall of the tank body and fermentation chamber to be connected, be fixed with a plurality of stirring vane on the puddler, stirring vane is located the inside of fermentation chamber, outside one side of the tank body is fixed with the heater, the bottom of the tank body is fixed with the support column, the bottom mounting of support column has a supporting baseplate, open the top of fermentation chamber has the feed inlet, the inside of feed inlet is equipped with sealing valve, the feed inlet passes the tank body, open the bottom of fermentation chamber has the discharge gate, the inside of discharge gate is equipped with discharge gate and filter sieve plate, the discharge gate passes the tank, one side in fermentation storehouse is equipped with the intake pipe, and the top in fermentation storehouse is fixed with the blast pipe, and the blast pipe communicates with fermentation storehouse is inside, and the jar body is passed to the blast pipe, is fixed with discharge valve on the blast pipe.
Further, the puddler pass fixed pipe and fixed gear, the puddler rotates with fixed pipe and fixed gear to be connected, still be fixed with four revolving stages on the puddler, the revolving stage is located the below of fixed gear, the upper surface of revolving stage is equipped with first drive gear, first drive gear rotates with the revolving stage to be connected, first drive gear meshes with fixed gear mutually, the revolving stage is kept away from and is equipped with second drive gear on the lateral wall of puddler, second drive gear rotates with the revolving stage to be connected, second drive gear meshes with first drive gear mutually, second drive gear's central point is fixed with the pivot, be fixed with the roller in the pivot, be fixed with a plurality of defoaming needles on the roller.
Furthermore, the heater is matched with the fermentation bin, the number of the support columns is four, the support columns are uniformly distributed at the bottom of the tank body, the discharge valve is positioned above the filtering sieve plate, the mesh number of the filtering sieve plate is 100-150 meshes, and the exhaust valve is positioned outside the tank body.
Further, the intake pipe including the person in charge that admits air, the person in charge that admits air is located the inside of jar body, be fixed with a plurality of air inlet ring pipes on the person in charge that admits air, the air inlet ring pipe with admit air be responsible for inside intercommunication, the air inlet ring pipe cup joints outside the fermentation storehouse, be fixed with the head of admitting air on the air inlet ring pipe, the head of admitting air and the inside intercommunication of the ring pipe that admits air, the head of admitting air passes the inside that the fermentation storehouse lateral wall is located the fermentation storehouse, the head of admitting air is located between the adjacent stirring vane, it has a plurality of inlet ports to admit air to open on the head of admitting air, the top of the person.
The invention has the beneficial effects that: the invention adds bean curd yellow serofluid in the process of preparing a liquid organic fertilizer, the existing treatment of the bean curd yellow serofluid is mostly directly discharged as waste, the bean curd yellow serofluid contains rich organic substances and various free amino acids, the invention utilizes the bean curd yellow serofluid as a raw material to recycle the waste, reduces the risk of environmental pollution caused by organic substances in the bean curd yellow serofluid, simultaneously uses a fermentation tank in the process of preparing the liquid organic fertilizer, the fermentation tank eliminates foams generated by stirring and fermentation through a first transmission gear, a second transmission gear, a fixed gear, a rotating platform, a rotating shaft, a roll shaft and a defoaming needle, the roll shaft rotates by taking a stirring rod as an axis and rotates automatically, so that the defoaming is more thorough, and oxygen is added into a fermentation bin through an air inlet head, and fermentation materials can be more fully contacted with the oxygen through the multiple air inlet heads and air inlet holes, thereby improving the fermentation efficiency and reducing the preparation time of the liquid organic fertilizer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a fermenter according to the present invention;
FIG. 2 is a top view of a fermenter according to the present invention;
FIG. 3 is a schematic view of the structure of A in the fermenter according to the present invention;
FIG. 4 is a top view of a fermenter A according to the present invention;
FIG. 5 is a top plan view of the air inlet tube of the present invention;
fig. 6 is a front view of an intake pipe in the present invention.
In the figure: 1. a tank body; 11. a motor; 111. a stirring rod; 112. a stirring blade; 113. a rotating table; 114. a first drive gear; 115. a second transmission gear; 116. a rotating shaft; 117. a roll shaft; 118. a defoaming needle; 12. a heater; 13. a support pillar; 14. a support base plate; 2. a fermentation bin; 21. a feed inlet; 22. a discharge port; 221. a discharge valve; 222. filtering the sieve plate; 23. a fixed tube; 231. fixing a gear; 24. an air inlet pipe; 241. a main air inlet pipe; 242. an air inlet ring pipe; 243. an air inlet head; 244. an air inlet; 245. an air filter; 25. an exhaust pipe; 251. and (4) exhausting the valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A method for preparing liquid organic fertilizer from bean curd yellow serofluid comprises the following raw materials in parts by weight: 30 parts of bean curd yellow slurry water, 10 parts of urea, 10 parts of diammonium hydrogen phosphate, 10 parts of potassium nitrate and 15 parts of deionized water;
the preparation method of the liquid organic fertilizer comprises the following steps:
step S1: filtering the bean curd yellow serofluid to remove filter residue, adding the filtered bean curd yellow serofluid into a reaction kettle, heating at 60 deg.C for 30min, and desalting with strong acid ion exchange resin exchange column to obtain bean curd yellow serofluid stock solution;
step S2: adding the bean curd yellow serofluid stock solution prepared in the step S1 and yeast into a fermentation tank, and performing primary fermentation for 20h at the rotation speed of 200r/min and the temperature of 22 ℃ to prepare a bean curd yellow serofluid primary fermentation liquid;
step S3: adding urea, diammonium hydrogen phosphate, potassium nitrate and deionized water into a stirring kettle, stirring for 5min at the rotating speed of 1000r/min, adding the bean curd yellow serofluid primary fermentation liquid prepared in the step S2, and stirring for 20min at the rotating speed of 1000r/min to prepare a mixed liquid;
step S4: and (4) adding the mixed liquor prepared in the step (S3) and saccharomycetes into a fermentation tank, performing secondary fermentation for 5 days at the rotation speed of 200r/min and the temperature of 22 ℃ to obtain secondary fermentation liquor, adding potassium hydroxide into the secondary fermentation liquor until the pH value of the secondary fermentation liquor is 7, and filtering to remove filter residues to obtain the liquid organic fertilizer.
Example 2
A method for preparing liquid organic fertilizer from bean curd yellow serofluid comprises the following raw materials in parts by weight: 40 parts of bean curd yellow slurry water, 13 parts of urea, 13 parts of diammonium hydrogen phosphate, 13 parts of potassium nitrate and 18 parts of deionized water;
the preparation method of the liquid organic fertilizer comprises the following steps:
step S1: filtering the bean curd yellow serofluid to remove filter residue, adding the filtered bean curd yellow serofluid into a reaction kettle, heating at 65 deg.C for 40min, and desalting with strong acid ion exchange resin exchange column to obtain bean curd yellow serofluid stock solution;
step S2: adding the bean curd yellow serofluid stock solution prepared in the step S1 and yeast into a fermentation tank, and performing primary fermentation for 22h at the rotation speed of 250r/min and the temperature of 23 ℃ to prepare a bean curd yellow serofluid primary fermentation liquid;
step S3: adding urea, diammonium hydrogen phosphate, potassium nitrate and deionized water into a stirring kettle, stirring for 7min at the rotation speed of 1100r/min, adding the bean curd yellow serofluid primary fermentation liquid prepared in the step S2, and stirring for 25min at the rotation speed of 1100r/min to obtain a mixed liquid;
step S4: and (4) adding the mixed liquid prepared in the step (S3) and saccharomycetes into a fermentation tank, performing secondary fermentation for 8 days at the rotation speed of 250r/min and the temperature of 23 ℃ to obtain secondary fermentation liquid, adding potassium hydroxide into the secondary fermentation liquid until the pH value of the secondary fermentation liquid is 7, and filtering to remove filter residues to obtain the liquid organic fertilizer.
Example 3
A method for preparing liquid organic fertilizer from bean curd yellow serofluid comprises the following raw materials in parts by weight: 50 parts of bean curd yellow slurry water, 15 parts of urea, 15 parts of diammonium hydrogen phosphate, 15 parts of potassium nitrate and 20 parts of deionized water;
the preparation method of the liquid organic fertilizer comprises the following steps:
step S1: filtering the bean curd yellow serofluid to remove filter residue, adding the filtered bean curd yellow serofluid into a reaction kettle, heating at 70 deg.C for 45min, and desalting with strong acid ion exchange resin exchange column to obtain bean curd yellow serofluid stock solution;
step S2: adding the bean curd yellow serofluid stock solution prepared in the step S1 and yeast into a fermentation tank, and performing primary fermentation for 24h at the rotation speed of 300r/min and the temperature of 25 ℃ to prepare a bean curd yellow serofluid primary fermentation liquid;
step S3: adding urea, diammonium hydrogen phosphate, potassium nitrate and deionized water into a stirring kettle, stirring for 10min at the rotation speed of 1200r/min, adding the bean curd yellow serofluid primary fermentation liquid prepared in the step S2, and stirring for 30min at the rotation speed of 1200r/min to prepare a mixed liquid;
step S4: and (4) adding the mixed liquid prepared in the step (S3) and yeast into a fermentation tank, performing secondary fermentation for 10 days at the rotation speed of 200-300r/min and the temperature of 25 ℃ to obtain secondary fermentation liquid, adding potassium hydroxide into the secondary fermentation liquid until the pH value of the secondary fermentation liquid is 7, and filtering to remove filter residues to obtain the liquid organic fertilizer.
Referring to fig. 1-6, the fermentation tank of the above embodiment includes a tank body 1 and a fermentation chamber 2, the fermentation chamber 2 is located inside the tank body 1, a motor 11 is fixed on the top end of the outside of the tank body 1, a stirring rod 111 is fixed on the output end of the motor 11, the stirring rod 111 sequentially passes through the top walls of the tank body 1 and the fermentation chamber 2, the stirring rod 111 is rotatably connected with the top walls of the tank body 1 and the fermentation chamber 2, a plurality of stirring blades 112 are fixed on the stirring rod 111, the stirring blades 112 are located inside the fermentation chamber 2, a heater 12 is fixed on one side of the outside of the tank body 1, a supporting column 13 is fixed on the bottom of the tank body 1, a supporting bottom plate 14 is fixed on the bottom end of the supporting column 13, a feeding port 21 is formed on the top end of the fermentation chamber 2, a sealing valve is arranged inside the feeding port 21, the feeding port 21 passes through the tank body 1, a discharging port, discharge gate 22 passes jar body 1, and the inside top of fermentation storehouse 2 is fixed with fixed pipe 23, and the bottom mounting of fixed pipe 23 has fixed gear 231, and one side of fermentation storehouse 2 is equipped with intake pipe 24, and the top of fermentation storehouse 2 is fixed with blast pipe 25, and blast pipe 25 and the inside intercommunication in fermentation storehouse 2, blast pipe 25 pass jar body 1, are fixed with discharge valve 251 on the blast pipe 25.
The stirring rod 111 penetrates through the fixed pipe 23 and the fixed gear 231, the stirring rod 111 is rotatably connected with the fixed pipe 23 and the fixed gear 231, four rotating platforms 113 are further fixed on the stirring rod 111, the rotating platforms 113 are located below the fixed gear 231, a first transmission gear 114 is arranged on the upper surface of each rotating platform 113, the first transmission gears 114 are rotatably connected with the rotating platforms 113, the first transmission gears 114 are meshed with the fixed gear 231, a second transmission gear 115 is arranged on the side wall, far away from the stirring rod 111, of the rotating platform 113, the second transmission gear 115 is rotatably connected with the rotating platforms 113, the second transmission gear 115 is meshed with the first transmission gears 114, a rotating shaft 116 is fixed at the central point of the second transmission gear 115, a roller shaft 117 is fixed on the rotating shaft 116, and a plurality of defoaming needles 118 are fixed on the roller shaft 117.
The heater 12 is matched with the fermentation chamber 2, the number of the support columns 13 is four, the support columns 13 are uniformly distributed at the bottom of the tank body 1, the discharge valve 221 is positioned above the filter sieve plate 222, the mesh number of the filter sieve plate 222 is 150 meshes, and the exhaust valve 251 is positioned outside the tank body 1.
The air inlet pipe 24 comprises an air inlet main pipe 241, the air inlet main pipe 241 is positioned inside the tank body 1, a plurality of air inlet circular pipes 242 are fixed on the air inlet main pipe 241, the air inlet circular pipes 242 are communicated with the inside of the air inlet main pipe 241, the air inlet circular pipes 242 are sleeved outside the fermentation bin 2, air inlet heads 243 are fixed on the air inlet circular pipes 242, the air inlet heads 243 are communicated with the inside of the air inlet circular pipes 242, the air inlet heads 243 penetrate through the side wall of the fermentation bin 2 and are positioned inside the fermentation bin 2, the air inlet heads 243 are positioned between adjacent stirring blades 112, a plurality of air inlet holes 244 are formed in the air inlet heads 243, the top end of the air inlet main pipe 241 penetrates through the top wall of the tank body 1, an air filter 245 is fixed on the.
The working process of the fermentation tank of the embodiment is as follows:
step S2, adding the stock solution of yellow slurry of bean curd and yeast into the fermentation chamber 2 through the feed inlet 21, closing the sealing valve in the feed inlet 21, turning on the heater 12 to reach 22 ℃, turning on the motor 11, driving the stirring rod 111 to rotate by the output end of the motor 11, driving the stirring blade 112 to rotate at a speed of 200r/min by the stirring rod 111, driving the rotating platform 113 to rotate by the stirring rod 111, driving the first transmission gear 114 to rotate by the rotating platform 113, driving the first transmission gear 114 to rotate by the stirring rod 111 as the axis, driving the first transmission gear 114 to rotate by itself by the meshing with the fixed gear 231, driving the second transmission gear 115 to rotate by the first transmission gear 114, driving the rotating shaft 116 to rotate by itself by the rotating shaft 116, eliminating the foam generated by stirring and fermentation, pressurizing the air by the air compressor, filtering the air by the air filter 245, impurities in the air are filtered out, the air enters the fermentation bin 2 from the air inlet head 243 along the air inlet main pipe 241 and the air inlet circular pipe 242 to provide oxygen for fermentation of yeast, after fermentation is completed, the discharge valve 221 is opened, the primary fermentation liquid of the bean curd yellow serofluid is prepared by filtering through the filter sieve plate 222, and the oxygen is added into the fermentation bin 2 through the air inlet head 243 to enable the fermentation product to be more fully contacted with the oxygen, so that the fermentation efficiency is improved, and the preparation time of the liquid organic fertilizer is shortened.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (5)
1. A method for preparing liquid organic fertilizer from bean curd yellow serofluid is characterized by comprising the following steps: the liquid organic fertilizer is prepared from the following raw materials in parts by weight: 30-50 parts of bean curd yellow serofluid, 10-15 parts of urea, 10-15 parts of diammonium hydrogen phosphate, 10-15 parts of potassium nitrate and 15-20 parts of deionized water;
the preparation method of the liquid organic fertilizer comprises the following steps:
step S1: filtering the bean curd yellow serofluid to remove filter residue, adding the filtered bean curd yellow serofluid into a reaction kettle, heating at 60-70 deg.C for 30-45min, and desalting with strong acid ion exchange resin exchange column to obtain bean curd yellow serofluid stock solution;
step S2: adding the bean curd yellow slurry stock solution prepared in the step S1 and yeast into the fermentation bin (2) through the feeding hole (21), closing a sealing valve in the feeding hole (21), starting the heater (12) to enable the temperature to reach 22-25 ℃, turning on the motor (11), enabling the output end of the motor (11) to drive the stirring rod (111) to rotate, enabling the stirring blade (112) to rotate at the rotating speed of 200-300r/min through the stirring rod (111), enabling the rotating platform (113) to rotate through the stirring rod (113), enabling the rotating platform (113) to drive the first transmission gear (114) to rotate by taking the stirring rod (111) as an axis, enabling the first transmission gear (114) to be meshed with the fixed gear (231) to enable the first transmission gear (114) to rotate by itself, enabling the first transmission gear (114) to drive the second transmission gear (115) to rotate, enabling the second transmission gear (115) to drive the rotating shaft (116) to rotate, the rotating shaft (116) drives the roller shaft (117) to rotate, air is pressurized by an air compressor and filtered by an air filter (245), impurities in the air are filtered out, the air enters the fermentation bin (2) from the air inlet head (243) along the air inlet main pipe (241) and the air inlet ring pipe (242), after primary fermentation is carried out for 20-24 hours, the discharging valve (221) is opened, filter residue is removed by a filter sieve plate (222), and the bean curd yellow slurry water primary fermentation liquid is prepared;
step S3: adding urea, diammonium hydrogen phosphate, potassium nitrate and deionized water into a stirring kettle, stirring for 5-10min at the rotation speed of 1000-1200r/min, adding the bean curd yellow serofluid primary fermentation liquid prepared in the step S2, and stirring for 20-30min at the rotation speed of 1000-1200r/min to prepare a mixed liquid;
step S4: adding the mixed liquid and yeast prepared in the step S3 into the fermentation bin (2) through the feed inlet (21), closing a sealing valve in the feed inlet (21), starting the heater (12) to enable the temperature to reach 22-25 ℃, turning on the motor (11), driving the stirring rod (111) to rotate by the output end of the motor (11), driving the stirring blade (112) to rotate at the rotation speed of 200 plus 300r/min by the stirring rod (111), driving the rotating platform (113) to rotate by the stirring rod (113), driving the first transmission gear (114) to rotate by taking the stirring rod (111) as the axis by the rotating platform (113), meshing the first transmission gear (114) with the fixed gear (231) to enable the first transmission gear (114) to rotate by itself, driving the second transmission gear (115) to rotate, driving the rotating shaft (116) to rotate by the second transmission gear (115), driving the rotating shaft (117) to rotate by itself by the rotating shaft (116), air is pressurized by an air compressor and filtered by an air filter (245), impurities in the air are filtered out, the air enters the fermentation bin (2) from the air inlet head (243) along the air inlet main pipe (241) and the air inlet ring pipe (242) to be subjected to secondary fermentation for 5-10 days to obtain secondary fermentation liquor, potassium hydroxide is added into the secondary fermentation liquor until the pH value of the secondary fermentation liquor is 7, the discharge valve (221) is opened, and filter residue is removed by filtering and screening plates (222) to obtain the liquid organic fertilizer.
2. The method for preparing the liquid organic fertilizer by using the bean curd yellow serofluid as claimed in claim 1, which is characterized in that: the fermentation tank comprises a tank body (1) and a fermentation bin (2), wherein the fermentation bin (2) is positioned inside the tank body (1), a motor (11) is fixed at the top end of the outside of the tank body (1), a stirring rod (111) is fixed at the output end of the motor (11), the stirring rod (111) sequentially penetrates through the upper top walls of the tank body (1) and the fermentation bin (2), the stirring rod (111) is rotatably connected with the upper top walls of the tank body (1) and the fermentation bin (2), a plurality of stirring blades (112) are fixed on the stirring rod (111), the stirring blades (112) are positioned inside the fermentation bin (2), a heater (12) is fixed on one side of the outside of the tank body (1), a support column (13) is fixed at the bottom of the tank body (1), a support bottom plate (14) is fixed at the bottom end of the support column (13), a feed inlet (21) is formed in the top end of the fermentation bin (2), and a sealing valve is arranged inside the feed inlet (, feed inlet (21) pass jar body (1), open the bottom in fermentation storehouse (2) has discharge gate (22), the inside of discharge gate (22) is equipped with ejection of compact valve (221) and filters sieve (222), discharge gate (22) pass jar body (1), the inside top in fermentation storehouse (2) is fixed with fixed pipe (23), the bottom mounting of fixed pipe (23) has fixed gear (231), one side in fermentation storehouse (2) is equipped with intake pipe (24), the top in fermentation storehouse (2) is fixed with blast pipe (25), blast pipe (25) and fermentation storehouse (2) inside intercommunication, blast pipe (25) pass jar body (1), be fixed with discharge valve (251) on blast pipe (25).
3. The method for preparing the liquid organic fertilizer by using the bean curd yellow serofluid as claimed in claim 2, which is characterized in that: the stirring rod (111) penetrates through the fixed pipe (23) and the fixed gear (231), the stirring rod (111) is rotatably connected with the fixed pipe (23) and the fixed gear (231), four rotating platforms (113) are further fixed on the stirring rod (111), the rotating platforms (113) are located below the fixed gear (231), a first transmission gear (114) is arranged on the upper surface of each rotating platform (113), the first transmission gear (114) is rotatably connected with the rotating platforms (113), the first transmission gear (114) is meshed with the fixed gear (231), a second transmission gear (115) is arranged on the side wall, far away from the stirring rod (111), of each rotating platform (113), the second transmission gear (115) is rotatably connected with the rotating platforms (113), the second transmission gear (115) is meshed with the first transmission gear (114), a rotating shaft (116) is fixed at the central point of the second transmission gear (115), and a roller shaft (117) is fixed on the rotating shaft (116), a plurality of defoaming needles (118) are fixed on the roller shaft (117).
4. The method for preparing the liquid organic fertilizer by using the bean curd yellow serofluid as claimed in claim 2, which is characterized in that: the heater (12) is matched with the fermentation bin (2), the number of the support columns (13) is four, the support columns (13) are uniformly distributed at the bottom of the tank body (1), the discharge valve (221) is positioned above the filtering sieve plate (222), the mesh number of the filtering sieve plate (222) is 100-150 meshes, and the exhaust valve (251) is positioned outside the tank body (1).
5. The method for preparing the liquid organic fertilizer by using the bean curd yellow serofluid as claimed in claim 2, which is characterized in that: the air inlet pipe (24) comprises an air inlet main pipe (241), the air inlet main pipe (241) is located inside the tank body (1), a plurality of air inlet circular pipes (242) are fixed on the air inlet main pipe (241), the air inlet circular pipes (242) are communicated with the inside of the air inlet main pipe (241), the air inlet circular pipes (242) are sleeved outside the fermentation bin (2), air inlet heads (243) are fixed on the air inlet circular pipes (242), the air inlet heads (243) are communicated with the inside of the air inlet circular pipes (242), the air inlet heads (243) penetrate through the side walls of the fermentation bin (2) and are located inside the fermentation bin (2), the air inlet heads (243) are located between the adjacent stirring blades (112), a plurality of air inlet holes (244) are formed in the air inlet heads (243), the top end of the air inlet main pipe (241) penetrates through the top wall of the tank body (1), an air filter (245) is fixed on the air inlet main pipe (241), and.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112919978A (en) * | 2021-04-15 | 2021-06-08 | 安徽硒无忧现代农业科技有限公司 | Germanium-rich organic nutrient solution and preparation method thereof |
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