Strain feed mixing and conveying integrated device

Abstract

The invention discloses a strain feed mixing and conveying integrated device which comprises a mounting frame, a feeding bin is arranged on the mounting frame, a lower end discharging port of the feeding bin is communicated with a premixing mechanism, a lower end discharging port of the premixing mechanism is communicated with a fine mixing mechanism, and a lower end discharging port of the fine mixing mechanism is communicated with a conveying mechanism. A discharge hole of the conveying mechanism is communicated with the stocker; the interior of the feeding bin is divided into a carrier cavity and a strain cavity through a vertical partition plate, a carrier metering bin is arranged at a discharging port in the lower end of the carrier cavity, a strain metering bin is arranged at a discharging port in the lower end of the strain cavity, and weighing sensors are arranged at the bottoms of the carrier metering bin and the strain metering bin. According to the invention, feeding, metering, mixing, conveying and storing are integrally designed, so that flow breakpoints are eliminated, material transfer links are reduced, mechanical damage to carriers and strains and environmental exposure are reduced, and meanwhile, mixing and conveying efficiency is improved; according to the invention, carriers and strains are respectively metered at the same time and then are mixed, so that the proportioning accuracy and stability of the strain feed are improved.

Description

Technical Field

[0001] This invention relates to the field of feed production equipment technology, specifically to an integrated device for mixing and conveying microbial feed. Background Technology

[0002] Microbial feed is a type of feed made by adding beneficial microbial strains as additives to feed using microbial fermentation technology. It can effectively improve the digestibility and absorption rate of animals and promote animal growth. In large-scale farming, the activity and uniformity of microbial feed directly affect farming efficiency and animal health.

[0003] The current processing of microbial feed involves decentralized equipment, meaning that the premixing and conveying stages are independent and require manual material handling. During this process, the materials are exposed to air, making them susceptible to moisture absorption and contamination. Furthermore, material sedimentation during transport can lead to uneven secondary mixing. Additionally, material residues and spillage during transport not only cause waste but also reduce the accuracy of the formulation. With the continuous expansion of aquaculture scale, the requirements for the precision, efficiency, and preservation of microbial activity in microbial feed processing are constantly increasing, and existing processing equipment can no longer meet these demands.

[0004] This invention mainly addresses and improves upon the aforementioned technical problems. Summary of the Invention

[0005] To address the existing technical problems, this invention provides an integrated device for mixing and conveying microbial feed, thereby solving the technical problems in the prior art.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: An integrated device for mixing and conveying microbial feed includes a mounting frame with a feeding hopper. The lower outlet of the feeding hopper is connected to a premixing mechanism, the lower outlet of the premixing mechanism is connected to a fine mixing mechanism, the lower outlet of the fine mixing mechanism is connected to a conveying mechanism, and the outlet of the conveying mechanism is connected to a storage container. The feed hopper is divided into a carrier chamber and a microbial chamber by a vertical partition plate. A carrier metering chamber is provided at the lower outlet of the carrier chamber, and a microbial metering chamber is provided at the lower outlet of the microbial chamber. Weighing sensors are provided at the bottom of both the carrier metering chamber and the microbial metering chamber.

[0007] Preferably, the premixing mechanism includes a premixing cavity with an overall cylindrical structure, and a first rotating shaft is provided at the center of the premixing cavity along the vertical direction, and a comb-shaped stirring part is connected to the first rotating shaft.

[0008] In this scheme, after the carrier and the bacterial strain enter the premixing chamber, the first rotating shaft drives the comb-shaped stirring part to rotate, thereby achieving the initial mixing of the carrier and the bacterial strain.

[0009] Preferably, the top of the premixing chamber is provided with two feeding channels, and the lower outlets of the carrier metering chamber and the inoculum metering chamber are respectively connected to the corresponding feeding channels through a screw feeder.

[0010] With this setup, the carrier enters the carrier metering chamber and is weighed by a weighing sensor at the bottom of the carrier metering chamber, and the inoculum enters the inoculum metering chamber and is weighed by a weighing sensor at the bottom of the inoculum metering chamber. By weighing the carrier and the inoculum separately, the inoculum feed is mixed in the optimal ratio.

[0011] Preferably, the fine mixing mechanism includes a fine mixing cavity with an overall cylindrical structure, a rotating shaft support is provided inside the fine mixing cavity, a second rotating shaft is rotatably connected to the rotating shaft support, and a helical blade is provided on the second rotating shaft.

[0012] With this setup, the initially mixed carrier and microbial strains enter the fine mixing chamber, where the second rotating shaft drives the spiral blades to rotate, further mixing the initially mixed microbial feed.

[0013] Preferably, a connecting bracket is provided on the second rotating shaft, the connecting bracket extends radially along the fine mixing cavity, and a rotating ball is rotatably connected to the free end of the connecting bracket.

[0014] With this setup, the second rotating shaft drives the spiral blades to rotate. As the spiral blades rotate, they cause the material to move around the second rotating shaft. This process is a smooth horizontal rotation. However, due to the different densities of the carrier and the inoculum, stratification will occur during the rotation. The denser material will stick to the outer wall during the rotation, while the less dense material will move closer to the center of the mixing chamber. A rotating sphere is set up so that it can disturb the circulation formed by the rotation of the material and disrupt the stratification phenomenon caused by the rotation process, thereby promoting the mixing of the carrier and the inoculum and further improving the mixing effect.

[0015] Preferably, the outlet of the premixing chamber and the inlet of the fine mixing chamber are connected by a connecting pipe, and the connecting pipe is set at a 45° angle to the horizontal plane.

[0016] With this configuration, the premixing chamber and the fine mixing chamber are connected by an inclined connecting pipe. This allows the premixed material to enter the fine mixing chamber smoothly after being decelerated by its own weight through the 45° inclined connecting channel, thereby reducing the mechanical impact on the material.

[0017] Preferably, the conveying mechanism includes a conveying pipe connected to the lower discharge port of the fine mixing mechanism. A screw is movably mounted on the conveying pipe along its axial direction. The screw is driven by a first motor, which is mounted on the mounting frame. A push plate is screwed onto the screw. The push plate is located inside the conveying pipe and is circumferentially limited by the inner wall of the conveying pipe.

[0018] With this setup, after the material in the fine mixing mechanism enters the conveying pipe, the first motor drives the screw to rotate. Since the push rod is screwed onto the screw and the push plate is circumferentially limited to the inner wall of the conveying pipe, the push plate cannot move circumferentially relative to the conveying pipe, but can only move axially along the conveying pipe. When the push plate moves axially along the conveying pipe, it pushes the material in the conveying pipe forward until it is pushed into the storage container.

[0019] Preferably, an annular cavity is screwed onto the screw, the annular cavity being located in front of the push plate. One end of the annular cavity facing the push plate is in contact with the end face of the push plate. Air holes are distributed on the end face of the annular cavity away from the push plate. An air blowing chamber is provided in the annular cavity corresponding to the position of each air blowing hole. A third rotating shaft is rotatably connected to the air blowing chamber. Fan blades are distributed on the third rotating shaft and are located in the air blowing chamber. The third rotating shaft is driven by a second motor.

[0020] With this configuration, the annular cavity is screwed onto the screw. When the push plate moves forward, it pushes the annular cavity to rotate and move forward at the same time. At the same time, the second motor drives the third rotating shaft and fan blades to rotate, so that the airflow generated in the blowing cavity is blown out through the blowing hole. The airflow blown out through the blowing hole further purifies the material in the conveying pipeline, which not only prevents material deposition but also protects the activity of the bacteria.

[0021] Preferably, the inner wall of the conveying pipe is provided with a groove along its axial direction, and the outer periphery of the push plate is provided with protrusions, which are slidably connected to the groove at the corresponding position.

[0022] With this configuration, the protrusions on the outer periphery of the push plate engage with the grooves on the inner wall of the conveying pipe, restricting the circumferential rotation of the push plate and allowing it to move only axially.

[0023] Preferably, the feed hopper is located above the premixing mechanism, the premixing mechanism is located above the fine mixing mechanism, and the fine mixing mechanism is located above the conveying mechanism.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is an integrated structure: that is, the feeding, metering, mixing, conveying and storage are integrated into one design, eliminating process breakpoints, reducing material transfer links, reducing mechanical damage and environmental exposure of carriers and strains, and improving mixing and conveying efficiency; the present invention also meteres the carriers and strains separately before mixing, improving the accuracy and stability of the strain feed formulation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the feed hopper structure; Figure 3 for Figure 1 Top view of the premixing mechanism in the middle; Figure 4 for Figure 3 AA section view in the middle; Figure 5 for Figure 1 A schematic diagram of the internal structure of the fine mixing mechanism in the diagram; Figure 6 for Figure 1 Longitudinal sectional view of the conveying mechanism in the middle; Figure 7 for Figure 6 Enlarged view of point I in the image. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0027] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] As attached Figure 1 -Appendix Figure 7The device shown is an integrated device for mixing and conveying microbial feed, including a mounting frame 1. A feeding hopper 2 is provided on the mounting frame 1 near its upper end. The lower outlet of the feeding hopper 2 is connected to a premixing mechanism, the lower outlet of the premixing mechanism is connected to a fine mixing mechanism, the lower outlet of the fine mixing mechanism is connected to a conveying mechanism, and the outlet of the conveying mechanism is connected to a storage container 6. The feeding hopper 2 is located above the premixing mechanism, the premixing mechanism is located above the fine mixing mechanism, and the fine mixing mechanism is located above the conveying mechanism.

[0029] refer to Figure 2 The feeding silo 2 is a vertical double-layer insulated silo, with an outer insulation layer and an inner layer made of food-grade stainless steel. The feeding silo 2 is divided into a carrier cavity 21 and a microbial cavity 22 by a vertical partition plate 20. The volume ratio of the carrier cavity 21 and the microbial cavity 22 is set according to the ratio of carrier to microbial in the actual microbial feed. The edge of the vertical partition plate 20 is sealed with food-grade sealant to ensure that the materials in the carrier cavity 21 and the microbial cavity 22 do not mix. The top of the feeding silo 2 adopts an arc-shaped cover plate instead of a flat cover design to avoid water accumulation or material buildup at the top, and it can be disassembled for feeding. The lower end of the carrier cavity 21 is provided with a first conical guide cavity 23, and the lower end of the inoculum cavity 22 is provided with a second conical guide cavity 24. A carrier metering chamber 25 is located at the lower outlet of the first conical guide cavity 23, and an inoculum metering chamber 26 is located at the lower outlet of the second conical guide cavity 24. Weighing sensors are installed at the bottom of both the carrier metering chamber 25 and the inoculum metering chamber 26. An electric butterfly valve is installed between the outlet of the first conical guide cavity 23 and the inlet of the carrier metering chamber 25, and an electric butterfly valve is installed between the second conical guide cavity 24 and the inlet of the inoculum metering chamber 26. After the electric butterfly valves are opened, the material falls into the carrier metering chamber 25 and the inoculum metering chamber 26 by its own weight. When the weighing sensor reading reaches the target weight, the electric butterfly valves are immediately closed to cut off the feeding.

[0030] from Figure 3 , Figure 4 Combination Figure 1 As can be seen, the premixing mechanism includes a premixing cavity 31 with an overall cylindrical structure. A first rotating shaft 32 is provided at the center of the premixing cavity 31 in the vertical direction. A comb-shaped stirring part 33 is connected to the first rotating shaft 32. The first rotating shaft 32 is driven by a third motor 320, which is installed on the top of the premixing cavity 31.

[0031] In this embodiment, the bottom of the premixing chamber 31 has a conical structure, so the comb-shaped stirring part 33 is also of varying lengths to match the conical shape of the bottom of the premixing chamber 31, so as to effectively stir the material in the premixing chamber 31 and avoid the situation where the bottom is not stirred properly. The ends of the teeth of the comb-shaped stirring part 33 are covered with silicone sleeves, and the stirring speed of the first rotating shaft 32 is limited to 30-50 r / min to achieve preliminary loose mixing of the material (to avoid material clumping).

[0032] The premixing chamber 31 has two feeding channels 38 at its top. The lower outlets of the carrier metering chamber 25 and the inoculum metering chamber 26 are respectively connected to the corresponding feeding channels 38 via a screw feeder 35. The screw feeder 35 delivers the material to the feeding channel 38, and the material enters the premixing chamber 31 through the feeding channel 38. The drive unit of the screw feeder 35 is electrically connected to a weighing sensor and an electric butterfly valve. The edges of the screw blades inside the screw feeder 35 are in close contact with the inner wall of the outer shell, which makes the material conveying more accurate.

[0033] Figure 5 Combination Figure 1 As can be seen, the fine mixing mechanism includes a fine mixing cavity 41 with an overall cylindrical structure. A rotating shaft support 42 is provided inside the fine mixing cavity 41. A second rotating shaft 43 is rotatably connected to the rotating shaft support 42. The second rotating shaft 43 is arranged in a vertical direction. A helical blade 44 is provided on the second rotating shaft 43. The helical blade 44 is located near the lower end of the second rotating shaft 43.

[0034] The second rotating shaft 43 drives the spiral blades 44 to rotate at 60 r / min. The spiral blades 44 cause the material to form a circulation. However, due to the different densities of the carrier and the inoculum, stratification occurs during rotation. The denser material adheres to the outer wall during rotation, while the less dense material moves closer to the center of the mixing chamber 41. To avoid this problem, a connecting bracket 45 is provided on the second rotating shaft 43. The connecting bracket 45 extends radially along the mixing chamber 41, and a rotating ball 46 is rotatably connected to the free end of the connecting bracket 45. The axis of rotation of the rotating ball 46 is set vertically. The purpose of setting the rotating ball 46 is to disrupt the circulation formed by the material, allowing the carrier and inoculum to mix more quickly.

[0035] In this embodiment, the outlet of the premixing chamber 31 and the inlet of the fine mixing chamber 41 are connected by a connecting pipe 34, which is set at a 45° angle to the horizontal plane. The premixed material, relying on its own weight, is decelerated after passing through the 45° inclined connecting pipe 34 and smoothly enters the fine mixing chamber 41, thereby reducing mechanical impact on the material. The inner wall of the connecting pipe 34 is coated with polytetrafluoroethylene to reduce material adsorption.

[0036] Alternatively, a uniformity sensor can be installed inside the fine mixing chamber 41 to monitor the mixing effect in real time. When the mixing value meets the standard, the discharge port at the bottom of the fine mixing chamber 41 will automatically open, and the material inside the fine mixing chamber 41 will fall into the conveying mechanism by its own weight. When the mixing of the material inside the fine mixing chamber 41 does not meet the standard, the mixing time will be extended until the standard is met.

[0037] from Figure 6 , Figure 7 Combination Figure 1 As can be seen, the conveying mechanism includes a conveying pipe 51 connected to the lower discharge port of the fine mixing mechanism. The conveying pipe 51 is arranged horizontally, and the inner wall of the conveying pipe 51 is coated with polytetrafluoroethylene to reduce material adsorption. A screw 52 is movably mounted on the conveying pipe 51 along its axial direction. One end of the screw 52 extends into the conveying pipe 51, and the other end extends out of the conveying pipe 51. The end of the screw 52 extending out of the conveying pipe 51 is connected to the output shaft of a first motor 53, which drives the screw 52 to rotate. The first motor 53 is mounted on the mounting bracket 1. A push plate 54 is screwed onto the screw 52. The push plate 54 is located inside the conveying pipe 51 and is circumferentially limited and connected to the inner wall of the conveying pipe 51.

[0038] Specifically, the inner wall of the conveying pipe 51 is provided with a groove 510 along its axial direction, and the outer periphery of the push plate 54 is provided with protrusions, which are slidably connected to the groove 510 at the corresponding positions. The cooperation between the protrusions and the groove 510 restricts the circumferential rotation of the push plate 54, so that the push plate 54 can only move along the axial direction of the conveying pipe 51.

[0039] An annular cavity 55 is screwed onto the screw 53. The central axis of the annular cavity 55 coincides with the central axis of the screw 52. The annular cavity 55 is located in front of the push plate 54. One end of the annular cavity 55 facing the push plate 54 is in contact with the end face of the push plate 54. Air holes 59 are distributed on the end face of the annular cavity 55 away from the push plate 54. An air blowing chamber 56 is provided inside the annular cavity 55 corresponding to the position of each air blowing hole 59. The inner cavity of the air blowing chamber 56 is connected to the air blowing hole 59. A third rotating shaft 57 is rotatably connected to the air blowing chamber 56. The third rotating shaft 57 is parallel to the screw 52. Fan blades are distributed on the third rotating shaft 57. The fan blades are located inside the air blowing chamber 56. The third rotating shaft 57 is driven by a second motor 58. In the initial state, the annular cavity 55 and the pusher plate 54 are located at the outlet position away from the conveying pipe 51, that is, the connection between the fine mixing cavity 41 and the conveying pipe 51 is located between the outlet of the conveying pipe 51 and the annular cavity 55. In this way, when the material falls from the fine mixing cavity 41 into the conveying pipe 51, the pusher plate 54 pushes the annular cavity 55, and the annular cavity 55 pushes the material forward.

[0040] After the material in the mixing mechanism enters the conveying pipe 51, the first motor 53 drives the screw 52 to rotate. Since the push plate 54 is screwed onto the screw 52 and the push plate 54 is circumferentially limited to the inner wall of the conveying pipe 51, the push plate 54 cannot move circumferentially relative to the conveying pipe 51, but can only move axially along the conveying pipe 51. The annular cavity 55 is also screwed onto the screw 52. When the push plate 54 moves forward, it pushes the annular cavity 55 to rotate and move forward. At the same time, the second motor 58 drives the third rotating shaft 57 and the fan blade to rotate, so that the airflow generated in the blowing cavity 56 is blown out from the blowing hole 59. The airflow blown out from the blowing hole 59 further purifies the material in the conveying pipe 51, which not only prevents material deposition but also protects the activity of the bacteria.

[0041] The preferred embodiments of the present invention have been described above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An integrated device for mixing and conveying microbial feed, comprising a mounting frame (1) on which a feeding hopper (2) is provided, characterized in that: The lower outlet of the feed hopper (2) is connected to the premixing mechanism, the lower outlet of the premixing mechanism is connected to the fine mixing mechanism, the lower outlet of the fine mixing mechanism is connected to the conveying mechanism, and the outlet of the conveying mechanism is connected to the storage device (6). The feed hopper (2) is divided into a carrier chamber (21) and a microbial chamber (22) by a vertical partition plate (20). The lower end of the carrier chamber (21) is provided with a carrier metering chamber (25), and the lower end of the microbial chamber (22) is provided with a microbial metering chamber (26). Weighing sensors are provided at the bottom of both the carrier metering chamber (25) and the microbial metering chamber (26).

2. The integrated device for mixing and conveying microbial feed according to claim 1, characterized in that: The premixing mechanism includes a premixing cavity (31) with an overall cylindrical structure. A first rotating shaft (32) is provided at the center of the premixing cavity (31) in the vertical direction. A comb-shaped stirring part (33) is connected to the first rotating shaft (32).

3. The integrated device for mixing and conveying microbial feed according to claim 2, characterized in that: The top of the premixed chamber (31) is provided with two feeding channels (38), and the lower outlets of the carrier metering chamber (25) and the inoculum metering chamber (26) are respectively connected to the corresponding feeding channels (38) through a screw feeder (35).

4. The integrated device for mixing and conveying microbial feed according to claim 2, characterized in that: The fine mixing mechanism includes a fine mixing cavity (41) with an overall cylindrical structure. A rotating shaft support (42) is provided inside the fine mixing cavity (41). A second rotating shaft (43) is rotatably connected to the rotating shaft support (42). A helical blade (44) is provided on the second rotating shaft (43).

5. The integrated device for mixing and conveying microbial feed according to claim 4, characterized in that: A connecting bracket (45) is provided on the second rotating shaft (43). The connecting bracket (45) extends radially along the fine mixing cavity (41), and a self-rotating ball (46) is rotatably connected to the free end of the connecting bracket (45).

6. The integrated device for mixing and conveying microbial feed according to claim 4, characterized in that: The outlet of the premixing chamber (31) and the inlet of the fine mixing chamber (41) are connected by a connecting pipe (34), which is set at a 45° angle to the horizontal plane.

7. The integrated device for mixing and conveying microbial feed according to claim 1, characterized in that: The conveying mechanism includes a conveying pipe (51) connected to the lower discharge port of the fine mixing mechanism. A screw (52) is movably mounted on the conveying pipe (51) along its axial direction. The screw (52) is driven by a first motor (53), which is mounted on the mounting bracket (1). A push plate (54) is screwed onto the screw (52). The push plate (54) is located inside the conveying pipe (51) and is circumferentially limited and connected to the inner wall of the conveying pipe (51).

8. The integrated device for mixing and conveying microbial feed according to claim 7, characterized in that: An annular cavity (55) is screwed onto the screw (52). The annular cavity (55) is located in front of the push plate (54). One end of the annular cavity (55) facing the push plate (54) is in contact with the end face of the push plate (54). Air holes (59) are distributed on the end face of the annular cavity (55) away from the push plate (54). An air blowing cavity (56) is provided in the annular cavity (55) corresponding to the position of each air blowing hole (59). A third rotating shaft (57) is rotatably connected to the air blowing cavity (56). Fan blades are distributed on the third rotating shaft (57). The fan blades are located in the air blowing cavity (56). The third rotating shaft (57) is driven by a second motor (58).

9. The integrated device for mixing and conveying microbial feed according to claim 7, characterized in that: The inner wall of the conveying pipe (51) is provided with a groove (510) along its axial direction, and the outer periphery of the push plate (54) is provided with protrusions, which are slidably connected to the groove (510) at the corresponding position.

10. The integrated device for mixing and conveying microbial feed according to claim 1, characterized in that: The feed hopper (2) is located above the premixing mechanism, which is located above the fine mixing mechanism, which is located above the conveying mechanism.

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