Aquaculture feed production process and production equipment thereof

Abstract

The invention discloses an aquaculture feed production process and production equipment thereof, and belongs to the field of feed production. A production process of an aquaculture feed comprises the following steps: step 1, separately crushing corn grains and wheat grains to obtain corn flour and wheat flour, and mixing the corn flour, the wheat flour and shrimp shell meal which are proportioned to obtain a first mixture, namely 60-72 parts of corn flour, 28-35 parts of wheat flour and 2-5 parts of shrimp shell meal; step 2, mixing 8-9 parts of fermented distillers' grains, 2-4 parts of peanut meal and 2-4 parts of the first mixture after proportioning to obtain a second mixture; according to the aquaculture feed production process provided by the invention, enzyme and bacterium compound treatment is performed by fermenting the vinasse, so that antinutritional factors and toxic substances in the raw materials can be degraded, cellulose and macromolecular protein in the raw materials can be degraded, the intestinal health of fish can be improved, the nutritional quality of the feed can be improved, and the feeding of the fish can be promoted; and the utilization rate of the feed is improved.

Description

Technical Field

[0001] The present invention relates to the field of feed production, and particularly relates to an aquaculture feed production process and its production equipment. Background Art

[0002] Fish farming refers to the process of providing a suitable growth environment for fish by artificially controlling environmental conditions to promote their growth and reproduction. Fish farming is of great significance in maintaining food supply, fishing, and expanding fishing areas. Common fish farming methods include pond farming, cage farming, and recirculating aquaculture. Choosing a suitable farming mode is crucial for improving farming efficiency.

[0003] In a Chinese patent with the publication number CN107788212A, a fish feed is disclosed. The composition and weight percentage content of the feed are: 48 - 55 parts of corn flour, 30 - 35 parts of pea flour, 10 - 20 parts of wheat, 10 - 15 parts of fine rice bran, 31 - 40 parts of soybean meal, 10 - 20 parts of fish meal, 5 - 10 parts of cicada pupa, 5 - 10 parts of old cucumber seed powder, and 0.5 - 1 part of probiotic.

[0004] The above - mentioned invention provides a fish feed that can effectively supplement feed minerals. However, the soybean meal used is untreated. Although it contains a certain amount of protein, its absorption and digestion rate is relatively low, thus unable to better improve the protein in the fish being fed. Therefore, the present application proposes an aquaculture feed production process and its production equipment. Summary of the Invention

[0005] The present invention provides an aquaculture feed production process and its production equipment, which can solve the problem in the prior art that the fish feed uses untreated soybean meal. Although it contains a certain amount of protein, its absorption and digestion rate is relatively low, thus unable to better improve the protein in the fish being fed.

[0006] An aquaculture feed production process includes the following steps:

[0007] Step 1: Separate and crush corn kernels and wheat grains to obtain corn flour and wheat flour. Mix the proportioned corn flour, wheat flour, and shrimp shell powder to obtain a first mixture, with 60 - 72 parts of corn flour, 28 - 35 parts of wheat flour, and 2 - 5 parts of shrimp shell powder;

[0008] Step 2: Mix the proportioned fermented distiller's grains, peanut meal with the first mixture to obtain a second mixture, with 8 - 9 parts of fermented distiller's grains and 2 - 4 parts of peanut meal

[0009] Step 3: Pelletize the second mixture through a pelletizer to obtain feed pellets.

[0010] A production device adopting an aquaculture feed production process, comprising a mixing cylinder, a conveying unit, and a granulating tank. The conveying unit is provided with a conveying feed pipe and a conveying discharge pipe. The conveying feed pipe is used to connect the mixing cylinder and the conveying unit, and the conveying discharge pipe is used to connect the conveying unit and the granulating tank;

[0011] The granulating tank includes a tank body, a granulating plate, a driving assembly, a roller, and a discharge pipe. A plurality of granulating holes are provided in the granulating plate, and the driving assembly is used to drive the granulating plate to rotate around the center line of the granulating tank;

[0012] The granulating plate is inserted into the tank body. A plurality of rollers are provided, and the plurality of rollers are circumferentially arrayed around the center line of the tank body. The rollers are located above the granulating plate. The discharge pipe is inserted into the tank body and is located below the granulating plate.

[0013] In a further technical solution, a first control valve and a second control valve are respectively provided in the conveying feed pipe and the conveying discharge pipe. The first control valve is used to control the opening and closing of the conveying feed pipe, and the second control valve is used to control the opening and closing of the conveying discharge pipe.

[0014] In a further technical solution, the mixing cylinder includes a cylinder body, a mixing shaft, mixing blades, and a mixing motor. The mixing shaft is inserted into the middle position of the cylinder body and is rotatably connected to the cylinder body through a bearing. Helically distributed mixing blades are welded on the mixing shaft.

[0015] In a further technical solution, the height of the mixing shaft is one-half to two-thirds of the depth of the cylinder body. The mixing shaft is connected to the output shaft of the mixing motor through a coupling, and the mixing motor is arranged at the bottom of the cylinder body.

[0016] In a further technical solution, a mixing bracket is provided at the bottom of the cylinder body, and the mixing motor is arranged on the mixing bracket.

[0017] In a further technical solution, the conveying unit includes a conveying shaft, a conveying housing, conveying blades, a conveying motor, and a motor bracket. The conveying housing is inclined. The conveying shaft is inserted into the interior of the conveying housing and is rotatably connected to the conveying housing through a bearing. Helically distributed conveying blades are welded on the conveying shaft. The distance between the conveying blades and the inner wall of the conveying housing is 2 - 4.5 cm. The conveying shaft is connected to the output shaft of the conveying motor through a coupling, and the conveying motor is arranged on the motor bracket.

[0018] In a further technical solution, the granulating holes include a conical part and a straight pipe part. The conical part communicates with the straight pipe part, and the conical part includes a wide mouth and a narrow mouth. The wide mouth is located at the top of the granulating plate. The distance between the granulating plate and the inner wall of the tank body is 0.5 - 1 mm, and the distance between the roller and the granulating plate is 1.5 - 3 cm.

[0019] Further technical solution: A rotating shaft is inserted into the roller, and the rotating shaft penetrates through the outer wall of the tank. The tank includes an upper tank and a lower tank, and the upper tank and the lower tank are connected by bolts. Upper pressing blocks and lower pressing blocks are respectively arranged on the upper tank and the lower tank. Upper semi-circular grooves and lower semi-circular grooves are respectively arranged in the upper pressing blocks and the lower pressing blocks. The upper semi-circular grooves and the lower semi-circular grooves are combined into an installation groove, and the rotating shaft is inserted into the installation groove.

[0020] Further technical solution: The driving assembly includes a driving shaft, a first bevel gear, a second bevel gear, a power shaft, and a granulation driving motor. The driving shaft is connected to the granulation plate by a flat key. A first bevel gear is installed on the driving shaft. The first bevel gear is connected to the second bevel gear through meshing transmission. The power shaft is inserted into the second bevel gear. A first pulley is installed on the power shaft. A second pulley is installed at the output end of the granulation driving motor. The first pulley and the second pulley are connected by a belt.

[0021] Beneficial effects:

[0022] The present invention provides an aquaculture feed production process. Through the enzyme and fungus composite treatment of fermented distiller's grains, it can degrade anti-nutritional factors and toxic substances in the raw materials, degrade cellulose and macromolecular proteins in the raw materials, improve the intestinal health of fish, improve the nutritional quality of the feed, promote fish feeding, enhance their immunity, and promote the improvement of the feed utilization rate.

[0023] A production equipment adopting the aquaculture feed production process weighs the formed corn flour, wheat flour, and shrimp shell powder after being broken and respectively adds them into the mixing cylinder. The mixing motor is started to drive the mixing shaft and the mixing blades to rotate, so that the corn flour, wheat flour, and shrimp shell powder are evenly mixed to obtain the first mixture. Then, the weighed fermented distiller's grains and peanut meal are sent into the mixing cylinder. During this period, the mixing motor remains started, so that the first mixture is fully mixed with the fermented distiller's grains and peanut meal to obtain the second mixture. The second mixture enters the inside of the granulation tank and falls onto the granulation plate. The driving assembly drives the granulation plate and the second mixture thereon to rotate. When the second mixture passes through the position where the roller is located, the second mixture is extruded into the granulation holes by the roller. The second mixture is extruded down along the granulation holes. A cutting knife is arranged in the area inside the granulation tank corresponding to the lower side of the granulation plate. The material extruded from the granulation holes falls down under the cutting of the cutting knife to form feed pellets. Description of the drawings

[0024] Figure 1 It is a schematic structural diagram of an aquaculture feed production equipment provided by the present invention;

[0025] Figure 2 It is a side view of an aquaculture feed production equipment provided by the present invention.

[0026] Figure 3Rear view of an aquaculture feed production device provided by the present invention.

[0027] Figure 4 Schematic diagram of the internal structure of an aquaculture feed production device provided by the present invention.

[0028] Figure 5 Schematic diagram of the structure of a roller in an aquaculture feed production device provided by the present invention.

[0029] Figure 6 Schematic diagram of the structure of a drive shaft in an aquaculture feed production device provided by the present invention.

[0030] Explanation of reference numerals:

[0031] 1. Mixing cylinder; 101. Cylinder body; 102. Mixing shaft; 103. Mixing blades; 104. Mixing motor; 2. Feeding pipe; 3. Conveying unit; 301. Conveying shaft; 302. Conveying blades; 303. Conveying motor; 304. Motor bracket; 4. Discharge pipe; 5. Pelletizing tank; 501. Tank body; 502. Pelletizing plate; 503. Drive shaft; 504. First bevel gear; 505. Second bevel gear; 506. Power shaft; 507. Pelletizing drive motor; 508. Roller; 509. Upper pressing block; 510. Lower pressing block; 511. Discharge pipe; 512. Pelletizing holes. Detailed description of the specific implementation

[0032] The following is a detailed description of the specific implementation of the present invention, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0033] An aquaculture feed production process provided by an embodiment of the present invention includes the following steps:

[0034] Step 1: Separate and crush corn kernels and wheat kernels to obtain corn flour and wheat flour, and mix the proportioned corn flour, wheat flour, and shrimp shell powder to obtain a first mixture, with 60 - 72 parts of corn flour, 28 - 35 parts of wheat flour, and 2 - 5 parts of shrimp shell powder;

[0035] Step 2: Mix the proportioned fermented distiller's grains, peanut meal, and the first mixture to obtain a second mixture, with 8 - 9 parts of fermented distiller's grains and 2 - 4 parts of peanut meal;

[0036] Step 3: Pelletize the second mixture through a pelletizer to obtain feed pellets.

[0037] As Figures 1 to 6As shown in the figure, a production device adopting an aquaculture feed production process includes a mixing cylinder 1, a conveying unit 3, and a granulation tank 5. A conveying feed pipe 2 and a conveying discharge pipe 4 are arranged on the conveying unit 3. The conveying feed pipe 2 is used to connect the mixing cylinder 1 and the conveying unit 3, and the conveying discharge pipe 4 is used to connect the conveying unit 3 and the granulation tank 5. A first control valve and a second control valve are respectively arranged in the conveying feed pipe 2 and the conveying discharge pipe 4. The first control valve is used to control the opening and closing of the conveying feed pipe 2, and the second control valve is used to control the opening and closing of the conveying discharge pipe 4. The second control valve is generally in an open state.

[0038] The mixing cylinder 1 is used for mixing materials and realizing the two tasks of step one and step two in the process. Specifically, reference can be made to Figure 4 , the mixing cylinder 1 includes a cylinder body 101, a mixing shaft 102, mixing blades 103, and a mixing motor 104. The mixing shaft 102 is inserted into the middle position of the cylinder body 101, and the mixing shaft 102 is rotatably connected to the cylinder body 101 through a bearing. Helically distributed mixing blades 103 are welded on the mixing shaft 102. The height of the mixing shaft 102 is one-half to two-thirds of the depth of the cylinder body 101 (to prevent material splashing). The mixing shaft 102 is connected to the output shaft of the mixing motor 104 through a coupling. The mixing motor 104 is arranged at the bottom of the cylinder body 101, and a mixing support is arranged at the bottom of the cylinder body 101. The mixing motor 104 is arranged on the mixing support.

[0039] After weighing the corn flour, wheat flour, and shrimp shell powder formed after being broken, they are respectively added into the mixing cylinder 1. The mixing motor 104 is started to drive the mixing shaft 102 and the mixing blades 103 to rotate, so that the corn flour, wheat flour, and shrimp shell powder are mixed evenly to obtain the first mixture.

[0040] After that, the weighed fermented distiller's grains and peanut meal are sent into the mixing cylinder 1. During this period, the mixing motor 104 remains started, so that the first mixture is fully mixed with the fermented distiller's grains and peanut meal to obtain the second mixture.

[0041] Reference can be made to Figure 4 , the conveying unit 3 includes a conveying shaft 301, a conveying housing, conveying blades 302, a conveying motor 303, and a motor support 304. The conveying housing is inclined. The conveying shaft 301 is inserted into the conveying housing, and the conveying shaft 301 is rotatably connected to the conveying housing through a bearing. Helically distributed conveying blades 302 are welded on the conveying shaft 301. The distance between the conveying blades 302 and the inner wall of the conveying housing is 2 - 4.5 cm. The conveying shaft 301 is connected to the output shaft of the conveying motor 303 through a coupling. The conveying motor 303 is arranged on the motor support 304.

[0042] The conveying motor 303 inside the conveying unit 3 starts, which can drive the rotation of the conveying shaft 301 and the conveying blades 302. The conveying blades 302 can push the second mixture upward, and the second mixture is discharged from the conveying discharge pipe 4 into the granulation tank 5.

[0043] Specifically, the granulation tank 5 includes a tank body 501, a granulation plate 502, a driving assembly, a roller 508, and a discharge pipe 511. A number of granulation holes 512 are provided in the granulation plate 502. The granulation holes 512 include a conical part and a straight pipe part. The conical part communicates with the straight pipe part, and the conical part includes a wide opening and a narrow opening. The wide opening is located at the top of the granulation plate 502. The driving assembly is used to drive the granulation plate 502 to rotate around the center line of the granulation tank 5.

[0044] More specifically, the granulation plate 502 is inserted into the tank body 501, and the distance between the granulation plate 502 and the inner wall of the tank body 501 is 0.5 - 1 mm. At this distance, the granulation plate 502 will not be worn relative to the inner wall of the tank body 501 when rotating. At the same time, it can minimize the entry of materials into the gap between the two, reducing material loss. A plurality of rollers 508 are provided, and the plurality of rollers 508 are circumferentially arrayed around the center line of the tank body 501. The rollers 508 are located above the granulation plate 502, and the distance between the rollers 508 and the granulation plate 502 is 1.5 - 3 cm. The discharge pipe 511 is inserted into the tank body 501, and the discharge pipe 511 is located below the granulation plate 502.

[0045] It should be noted that a rotating shaft is inserted into the roller 508. The rotating shaft penetrates the outer wall of the tank body 501. The tank body 501 includes an upper tank and a lower tank. The upper tank and the lower tank are connected by bolts. Upper pressing blocks 509 and lower pressing blocks 510 are respectively provided on the upper tank and the lower tank. Upper semi-circular grooves and lower semi-circular grooves are respectively provided in the upper pressing blocks 509 and the lower pressing blocks 510. The upper semi-circular grooves and the lower semi-circular grooves form an installation groove, and the rotating shaft is inserted into the installation groove.

[0046] The second mixture enters the inside of the granulation tank 5 and falls onto the granulation plate 502. The driving assembly drives the granulation plate 502 and the second mixture thereon to rotate. When the second mixture passes through the position where the roller 508 is located, the second mixture is extruded into the granulation holes 512 under the extrusion of the roller 508. The second mixture is extruded down along the granulation holes 512. A cutting knife is provided in the area inside the granulation tank 5 corresponding to the lower side of the granulation plate 502. The material extruded from the granulation holes 512 falls off under the cutting of the cutting knife, forming feed pellets.

[0047] Specifically, the driving assembly includes a driving shaft 503, a first bevel gear 504, a second bevel gear 505, a power shaft 506, and a granulation driving motor 507. The driving shaft 503 is connected to the granulation plate 502 by a flat key. The first bevel gear 504 is mounted on the driving shaft 503. The first bevel gear 504 is connected to the second bevel gear 505 through meshing transmission. The power shaft 506 is inserted into the second bevel gear 505. A first pulley is mounted on the power shaft 506. A second pulley is mounted at the output end of the granulation driving motor 507. The first pulley and the second pulley are connected by a belt. The granulation driving motor 507 drives the power shaft 506 to rotate through the first pulley, the second pulley, and the belt. The power shaft 506 drives the driving shaft 503 to rotate through the first bevel gear 504 and the second bevel gear 505, thereby driving the granulation plate 502 to rotate.

[0048] In summary, a production process for aquaculture feed provided by an embodiment of the present invention can degrade anti-nutritional factors and toxic substances in raw materials through enzyme-fungus composite treatment of fermented distillers' grains, degrade cellulose and macromolecular proteins in the raw materials, improve the intestinal health of fish, improve the nutritional quality of feed, promote fish feeding, enhance their immunity, and promote the improvement of feed utilization rate.

[0049] A production device adopting the production process of aquaculture feed.

[0050] The weighed corn flour, wheat flour, and shrimp shell powder formed after being broken are respectively added into the mixing cylinder 1. The mixing motor 104 is started to drive the mixing shaft 102 and the mixing blades 103 to rotate, so that the corn flour, wheat flour, and shrimp shell powder are mixed evenly to obtain the first mixture.

[0051] After that, the weighed fermented distillers' grains and peanut meal are sent into the mixing cylinder 1. During this period, the mixing motor 104 remains started, so that the first mixture is fully mixed with the fermented distillers' grains and peanut meal to obtain the second mixture.

[0052] The second mixture enters the inside of the granulation tank 5 and falls onto the granulation plate 502. The driving assembly drives the granulation plate 502 and the second mixture thereon to rotate. When the second mixture passes through the position of the roller 508, the second mixture is extruded into the granulation holes 512 under the extrusion of the roller 508. The second mixture is extruded down along the granulation holes 512. A cutting knife is arranged in the area corresponding to the lower side of the granulation plate 502 inside the granulation tank 5. The material extruded from the granulation holes 512 falls off under the cutting of the cutting knife to form feed pellets.

[0053] The above-disclosed are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A process for producing aquaculture feed, characterized in that: The following steps are involved: Step 1: Grind corn kernels and wheat kernels separately to obtain corn flour and wheat flour, and mix the proportioned corn flour, wheat flour and shrimp shell powder to obtain a first mixture, including 60-72 parts of corn flour, 28-35 parts of wheat flour and 2-5 parts of shrimp shell powder; Step 2: Mixing the fermented distiller's grains and peanut meal with the first mixed material to obtain a second mixed material, which includes 8-9 parts of fermented distiller's grains and 2-4 parts of peanut meal; Step 3: The second mixed material is granulated by a granulator to obtain feed pellets.

2. The production equipment according to claim 1 using the aquaculture feed production process, characterized in that: The invention comprises a mixing drum (1), a conveying unit (3) and a granulating tank (5); the conveying unit (3) is provided with a conveying feed pipe (2) and a conveying discharge pipe (4); the conveying feed pipe (2) is used to connect the mixing drum (1) and the conveying unit (3); and the conveying discharge pipe (4) is used to connect the conveying unit (3) and the granulating tank (5); The granulation tank (5) comprises a tank body (501), a granulation plate (502), a driving assembly, a roller (508), and a discharge pipe (511); a plurality of granulation holes (512) are arranged in the granulation plate (502); and the driving assembly is used to drive the granulation plate (502) to rotate around the center line of the granulation tank (5); The granulation plate (502) is inserted into the tank body (501), a plurality of rollers (508) are provided, and the plurality of rollers (508) are distributed in a circular array around the center line of the tank body (501), the rollers (508) are located on the upper side of the granulation plate (502), and the discharge pipe (511) is inserted into the tank body (501), and the discharge pipe (511) is located on the lower side of the granulation plate (502).

3. The production equipment using aquaculture feed production process as claimed in claim 2, characterized in that: The conveying feed pipe (2) and the conveying discharge pipe (4) are respectively provided with a first control valve and a second control valve, the first control valve being used to control the opening and closing of the conveying feed pipe (2), and the second control valve being used to control the opening and closing of the conveying discharge pipe (4).

4. The production equipment using aquaculture feed production process as claimed in claim 2, characterized in that: The mixing cylinder (1) comprises a cylinder body (101), a mixing shaft (102), mixing blades (103), and a mixing motor (104); the mixing shaft (102) is inserted into the middle position of the cylinder body (101), and the mixing shaft (102) is rotatably connected to the cylinder body (101) via a bearing; and the mixing blades (103) are welded to the mixing shaft (102) in a spiral arrangement.

5. The production equipment using aquaculture feed production process as claimed in claim 4, characterized in that: The height of the mixing shaft (102) is between one-half and two-thirds of the depth of the cylinder (101), and the mixing shaft (102) is connected to the output shaft of the mixing motor (104) via a coupling. The mixing motor (104) is arranged at the bottom of the cylinder (101).

6. The production equipment using aquaculture feed production process as claimed in claim 5, characterized in that: A mixing bracket is arranged at the bottom of the cylinder (101), and a mixing motor (104) is arranged on the mixing bracket.

7. The production equipment using aquaculture feed production process as claimed in claim 2, characterized in that: The conveying unit (3) comprises a conveying shaft (301), a conveying shell, conveying blades (302), a conveying motor (303), and a motor bracket (304); the conveying shell is arranged obliquely; the conveying shaft (301) is inserted into the conveying shell, and the conveying shaft (301) is rotatably connected to the conveying shell via a bearing; spirally distributed conveying blades (302) are welded on the conveying shaft (301); the conveying blades (302) are spaced 2-4.5 cm from the inner wall of the conveying shell; the conveying shaft (301) is connected to the output shaft of the conveying motor (303) via a coupling; and the conveying motor (303) is arranged on the motor bracket (304).

8. The production equipment using aquaculture feed production process as claimed in claim 2, characterized in that: The granulation hole (512) includes a conical portion and a straight tube portion, the conical portion is connected to the straight tube portion, and the conical portion includes a wide opening and a narrow opening, the wide opening is located at the top of the granulation plate (502), the granulation plate (502) and the inner wall of the tank body (501) are spaced 0.5-1 mm, and the distance between the roller (508) and the granulation plate (502) is 1.5-3 cm.

9. The production equipment using aquaculture feed production technology as claimed in claim 2, characterized in that: A rotating shaft is inserted into the roller (508), and the rotating shaft penetrates the outer wall of the tank body (501). The tank body (501) includes an upper tank and a lower tank, and the upper tank and the lower tank are connected by bolts. An upper pressing block (509) and a lower pressing block (510) are respectively provided on the upper tank and the lower tank. An upper semicircular groove and a lower semicircular groove are respectively provided in the upper pressing block (509) and the lower pressing block (510). The upper semicircular groove and the lower semicircular groove form a mounting groove, and the rotating shaft is inserted into the mounting groove.

10. The production equipment using aquaculture feed production technology as claimed in claim 2, characterized in that: The driving assembly comprises a driving shaft (503), a first bevel gear (504), a second bevel gear (505), a power shaft (506), and a granulation driving motor (507); the driving shaft (503) is connected to the granulation plate (502) through a flat key; the driving shaft (503) is provided with a first bevel gear (504); the first bevel gear (504) is connected to the second bevel gear (505) through tooth meshing transmission; the power shaft (506) is inserted into the second bevel gear (505); a first belt pulley is provided on the power shaft (506); a second belt pulley is provided at the output end of the granulation driving motor (507); and the first belt pulley and the second belt pulley are connected through a belt.

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