Cereal grain mixing device

Abstract

The present application provides a grain particle mixing device, belonging to the technical field of grain particle material mixing, the device comprises: a premixing barrel, with a feed hole on the top, a drop pipe on the bottom, a material partition plate inside the premixing barrel, and a discharge hole on the material partition plate; a mixing barrel, with an upper cavity and a lower cavity interconnected inside, and the upper cavity and the lower cavity are both conical structures, and the cone bottoms are arranged oppositely, and a discharge pipe is arranged at the lower end of the mixing barrel; a stirring body, coaxially arranged inside the mixing barrel, comprising an upper cone and a lower cone; a hollow shaft, penetrating the premixing barrel and rotating around its own axis, and multiple groups of first stirring shafts and second stirring shafts are evenly arranged on the hollow shaft along the axis; a liquid storage tube, arranged inside the hollow shaft, and a spray hole is opened along the circumference at the lower end of the liquid storage tube; a material spreading mechanism, arranged on the hollow shaft in the drop pipe and located above the spray hole. The mixing device has good mixing continuity and can effectively improve the mixing uniformity of grain particles and adhesives.

Description

Technical Field

[0001] This application belongs to the field of grain pellet mixing technology, and particularly relates to a grain pellet mixing device. Background Technology

[0002] Grain cakes, a type of organic food, are made from various grains and a binder made from malt syrup, without any added preservatives, making them a healthy and environmentally friendly food. The production process begins with mixing various grains and the binder. The grains are first poured into a mixing tank, where a stirring shaft agitates and mixes them. Then, the binder is added to the mixing tank for further mixing. Finally, the mixed grains are pressed, dried, and cut into pieces to form grain cakes.

[0003] In actual production, it was found that this mixing method is not continuous, meaning that grain particles can only be mixed in batches, which is not conducive to improving production efficiency. When the binder is added, due to the density difference between the binder and the grain particles, the binder settles to the bottom and the grain particles clump together, resulting in a low degree of uniformity in mixing and affecting the production quality of the grain cake. Summary of the Invention

[0004] To address the shortcomings of the prior art, this application provides a grain pellet mixing device that has good mixing continuity and can effectively improve the uniformity of mixing grain pellets and binders.

[0005] To achieve the above objectives, the present invention employs the following techniques:

[0006] A grain pellet mixing device, comprising:

[0007] The premixing tank has a feed hole at the top and a smaller diameter discharge pipe coaxially at the bottom. The middle section inside the premixing tank has a partition plate with a discharge hole.

[0008] The mixing tank has an upper cavity and a lower cavity that are interconnected inside. Both the upper cavity and the lower cavity are conical structures with their bases facing each other. The lower end of the mixing tank is provided with a discharge pipe that communicates with the lower cavity, and the lower end of the discharge pipe is inserted into the upper cavity.

[0009] The stirring body is coaxially disposed inside the mixing tank. It includes an upper cone and a lower cone. There are annular cavities between the outer wall of the upper cone and the inner wall of the upper cavity, and between the outer wall of the lower cone and the inner wall of the lower cavity. The stirring body is arranged to rotate around its own axis.

[0010] A hollow shaft is coaxially installed in the premixing tank and rotates around its own axis. Multiple sets of first stirring shafts and second stirring shafts are evenly arranged along the axis of the hollow shaft. The first stirring shafts are located above the partition plate. The set of first stirring shafts closest to the partition plate is spaced at a predetermined distance from the top of the partition plate. The shape of the first stirring shaft is adapted to the shape of the discharge hole. The second stirring shaft is located below the partition plate.

[0011] The liquid storage tube is coaxially located inside the hollow shaft. Spray holes are opened along the circumference at the lower end of the liquid storage tube, and the spray holes protrude from the lower end of the hollow shaft.

[0012] The material spreading mechanism is located on a hollow shaft inside the discharge pipe and above the spray nozzle, and is used to make the granular material fall evenly along the periphery of the spray nozzle.

[0013] Furthermore, the material spreading mechanism includes a rotating column mounted on a hollow shaft. The rotating column is cylindrical, and its axis is aligned with the axis of the hollow shaft. The rotating column is located inside the material drop pipe and above the spray hole. Its top is a conical surface with the cone apex facing upwards. There is an annular gap between the rotating column and the inner wall of the material drop pipe to ensure that the material falls evenly along the circumference.

[0014] Furthermore, multiple first guide grooves are provided on the circumference of the rotating column along the axial direction, and the first guide grooves are evenly arranged on the circumference of the rotating column.

[0015] Furthermore, the discharge hole is a strip-shaped hole, and each first stirring shaft is set perpendicular to the axis of the hollow shaft. In each group, the first stirring shafts are evenly arranged around the axis of the hollow shaft, and the number is consistent with the number of discharge holes. The length and width of the first stirring shaft are adapted to the length and width of the discharge hole, respectively. The projected outlines of any two adjacent groups of first stirring shafts along the axis of the hollow shaft do not coincide. Each second stirring shaft is set perpendicular to the axis of the hollow shaft. In each group, there are multiple second stirring shafts and they are evenly arranged around the axis of the hollow shaft. The projected outlines of any two adjacent groups of second stirring shafts along the axis of the hollow shaft do not coincide.

[0016] Furthermore, a stirring chamber is formed by protruding from the middle of the mixing tank along its periphery. The middle of the stirring body is cylindrical, and multiple sets of third stirring shafts are evenly arranged along the axis in the middle of the stirring body. Each set contains multiple third stirring shafts evenly arranged around the axis of the stirring body. The axes of each third stirring shaft in each set are coplanar and perpendicularly intersect the axis of the stirring body. The projections of each set of third stirring shafts along the axis of the stirring body coincide.

[0017] Furthermore, the mixing chamber wall is provided with multiple sets of fourth stirring shafts evenly arranged along the axis, and each set contains multiple fourth stirring shafts evenly arranged along the periphery of the mixing chamber. The axes of each fourth stirring shaft in each set are coplanar and perpendicularly intersect the axis of the mixing tank. The projections of each set of fourth stirring shafts along the axis of the mixing tank coincide. Each set of fourth stirring shafts is separated by a third stirring shaft.

[0018] Furthermore, multiple second guide grooves are formed on the upper and lower cones of the mixing body, evenly arranged along the periphery of the mixing body. The paths of the second guide grooves are arc-shaped and convex towards the rotation direction of the mixing body.

[0019] Furthermore, a mounting plate is provided parallel to the top of the premixing tank, and support rods are provided vertically at the four corners of the mounting plate. Multiple storage boxes are provided above the mounting plate, and the storage boxes are connected to the corresponding feed holes through feeding pipes. A liquid storage tank is provided above the mounting plate for conveying slurry to the liquid storage pipe. A first motor is also provided above the mounting plate, and its drive end passes through the mounting plate and is coaxially connected to a drive gear. A driven gear is coaxially provided on the upper part of the hollow shaft, and the driven gear meshes with the drive gear. Support rings are fitted on the outer side of the top of the premixing tank and the upper cavity. Four support frames are connected around the support rings, and the other end of the support frames is connected to the corresponding support rods.

[0020] The beneficial effects of this invention are as follows:

[0021] By incorporating a premixing tank, a storage pipe, a mixing tank, a stirring body, and a feeding mechanism, along with the rotation of a baffle plate, a first stirring shaft, and a second stirring shaft, continuous and multiple mixing of grain particles is achieved, improving production efficiency. This also effectively prevents the binder from settling to the bottom and the grain particles from clumping, thus improving the uniformity of the mixing and ultimately enhancing the quality of the grain cake production. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of the device according to an embodiment of this application.

[0023] Figure 2 This is a cross-sectional view of the device according to an embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the structure of the premixing tank in an embodiment of this application.

[0025] Figure 4 This is a cross-sectional view of the premixing tank in an embodiment of this application.

[0026] Figure 5 This is a schematic diagram of the material separator plate in an embodiment of this application.

[0027] Figure 6 yes Figure 2 A magnified view of part A in the middle.

[0028] Figure 7 This is a cross-sectional view of the mixing tank and agitator according to an embodiment of this application.

[0029] Figure 8 This is a schematic diagram of the hollow shaft in an embodiment of this application.

[0030] Figure 9This is a schematic diagram of the structure of the stirring body in an embodiment of this application.

[0031] Figure 10 yes Figure 1 A magnified view of part B in the middle.

[0032] Reference numerals: 1-Premixing tank, 11-First shaft hole, 12-Feed hole, 13-Discharge pipe, 14-Separator plate, 141-Second shaft hole, 142-Discharge hole, 2-Mixing tank, 21-Discharge pipe, 22-Stirring chamber, 23-Fourth stirring shaft, 3-Stirring body, 31-Second guide groove, 32-Third stirring shaft, 4-Hollow shaft, 41-First stirring shaft, 42-Second stirring shaft, 43-Driven gear, 5-Storage pipe, 51-Spray hole, 6-Spreading mechanism, 61-Rotating column, 62-First guide groove, 7-Mounting plate, 71-Support rod, 72-Storage box, 73-Feeding pipe, 74-Storage box, 75-First motor, 76-Drive gear, 77-Support ring, 78-Support frame, 79-Second motor. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this invention are only some embodiments of the present invention, and not all embodiments.

[0034] Example 1

[0035] This application provides a grain pellet mixing device, such as... Figures 1-6 As shown, the device includes: a premixing tank 1, a mixing tank 2, a stirring body 3, a hollow shaft 4, a liquid storage pipe 5, and a feeding mechanism 6.

[0036] The premixing tank 1 has a first shaft hole 11 and three feed holes 12 at its top. In this embodiment, three types of grain pellets and a binder are mixed. The axis of the first shaft hole 11 is aligned with the axis of the premixing tank 1. The bottom surface of the premixing tank 1 is conical and coaxially connected to a smaller diameter discharge pipe 13. A partition plate 14 is formed in the middle section of the premixing tank 1, which is perpendicular to the axis of the first shaft hole 11. The partition plate 14 has a second shaft hole 141 and multiple discharge holes. Hole 142 and second shaft hole 141 are located in the middle of the partition plate 14. The discharge hole 142 is evenly arranged around the axis of the premixing tank 1. The mixing tank 2 is located below the premixing tank 1. It has an upper cavity and a lower cavity that are interconnected inside. Both the upper cavity and the lower cavity are conical structures and the cone bottoms are opposite to each other. The lower end of the mixing tank 2 is provided with a discharge pipe 21 that communicates with the lower cavity. The lower end of the discharge pipe 13 is inserted into the upper cavity. The axis of the mixing tank 2 is coincident with the axis of the premixing tank 1.

[0037] The stirring body 3 is coaxially arranged inside the mixing tank 2. It includes an upper cone and a lower cone. There are annular cavities between the outer wall of the upper cone and the inner wall of the upper cavity, and between the outer wall of the lower cone and the inner wall of the lower cavity. The stirring body 3 is arranged to rotate around its own axis. The axis of the stirring body 3 is arranged to coincide with the axis of the mixing tank 2. The annular cavity is used to further mix the three grain particles and the binder.

[0038] The hollow shaft 4 passes through the first shaft hole 11 and the second shaft hole 141 and is rotatably arranged around its own axis. Multiple sets of first stirring shafts 41 and second stirring shafts 42 are evenly arranged along the axis of the hollow shaft 4. The first stirring shafts 41 are located above the partition plate 14. The set of first stirring shafts 41 closest to the partition plate 14 is separated from the top of the partition plate 14 by a predetermined distance. The shape of the first stirring shaft 41 is adapted to the shape of the discharge hole 142. The second stirring shaft 42 is located below the partition plate 14.

[0039] The liquid storage tube 5 is coaxially arranged inside the hollow shaft 4. The lower end of the liquid storage tube 5 is provided with spray holes 51 along the circumference, and the spray holes 51 all protrude from the lower end of the hollow shaft 4, which are used to spray adhesive onto the bottom periphery of the liquid storage tube 5. The material spreading mechanism 6 is arranged on the hollow shaft 4 inside the material drop tube 13 and is located above the spray holes 51, which is used to make the material fall evenly along the periphery of the spray holes 51.

[0040] The mixing principle of the mixing device is as follows:

[0041] First mixing:

[0042] like Figures 2-4As shown, the hollow shaft 4 continuously rotates around its own axis, thereby driving the first stirring shaft 41 and the second stirring shaft 42 to rotate continuously. The three types of grain particles are continuously fed into the premixing tank 1 through their corresponding feed holes 12. After entering the premixing tank 1, due to gravity, the grain particles fall from the top of the premixing tank 1 onto the partition plate 14. Simultaneously, under the action of the first stirring shaft 41, the three types of grain particles are repeatedly dispersed and recombined during the entire falling process. Because the shape of the first stirring shaft 41 matches the shape of the discharge hole 142, and a set of first stirring shafts 41 close to the partition plate 14 is spaced a predetermined distance from the top of the partition plate 14, When the hollow shaft 4 rotates around its own axis by a predetermined angle, a set of first stirring shafts 41 near the partition plate 14 can completely block the discharge hole 142, keeping the grain particles above the partition plate 14, thus causing the grain particles to gather above the partition plate 14. When the hollow shaft 4 drives the first stirring shaft 41 to rotate, the set of first stirring shafts 41 near the partition plate 14 can push the grain particles on the partition plate 14 into the discharge hole 142, thereby passing through the partition plate 14. Since the feed hole 12 is for continuous feeding, the granular material that enters the premixing tank 1 first will be pushed into the discharge hole 142 by the set of first stirring shafts 41 near the partition plate 14 after mixing. By setting the first stirring shaft 41 and under the action of gravity of the grain particles, the various grain particles are dispersed and recombined and mixed. At the same time, with the cooperation of the first stirring shaft 41 and the discharge hole 142, the grain particles that enter the premixing tank 1 first pass through the separator plate 14 through the discharge hole 142 first, realizing the first-in-first-out of grain particles, improving the mixing continuity of the mixing device, and thus improving production efficiency.

[0043] Second mixing:

[0044] like Figure 2 and Figure 6 As shown, the grain particles passing through the discharge hole 142 will enter the cavity formed between the partition plate 14 and the bottom of the premixing tank 1 for a second mixing. Since the spreading mechanism 6 is located on the hollow shaft 4 inside the discharge pipe 13, it can effectively restrict the grain particles from directly entering the discharge pipe 13, thereby causing the grain particles to accumulate at the bottom of the premixing tank 1, that is, above the spreading mechanism 6. During this period, the hollow shaft 4 drives the second stirring shaft 42 to rotate, thereby further mixing the grain particles. The hollow shaft 4 simultaneously drives the spreading mechanism 6 to operate. The spreading mechanism 6 continuously and evenly drops the grain particles located at the bottom of the premixing tank 1 along the periphery of the spray hole 51. This not only achieves further mixing of the grain particles, but also ensures that the grain particles that pass through the discharge hole 142 first undergo a second mixing and are discharged first by the spreading mechanism 6, that is, achieving first-in-first-out of grain particles.

[0045] Spray adhesive:

[0046] like Figure 6As shown, the spreading mechanism 6 causes the grain particles to fall evenly along the periphery of the spray hole 51, while the spray hole 51 sprays the adhesive in the liquid storage pipe 5 towards the lower periphery of the liquid storage pipe 5, so that the falling grain particles are evenly sprayed with adhesive, making the contact between the grain particles and the adhesive more uniform. This effectively solves the problem of adhesive settling to the bottom, grain particles clumping, and uneven mixing caused by directly pouring adhesive into the grain particles for mixing.

[0047] Third mixing:

[0048] like Figure 2 , Figure 6 , Figure 7 As shown, grain particles sprayed with binder continuously fall onto the top of the mixing body 3 through the discharge pipe 13. The mixing body 3 continuously rotates around its own axis. Due to the rotation of the mixing body 3, the grain particles on the top of the mixing body 3 can be carried into the annular cavity formed between the mixing tank 2 and the mixing body 3. Since the mixing tank 2 has an interconnected upper cavity and a lower cavity, and both the upper cavity and the lower cavity are conical structures with their bottoms facing each other, and the mixing body 3 includes an upper cone and a lower cone, the annular cavity formed between the mixing tank 2 and the mixing body 3 becomes more elongated. Under the action of the rotation of the mixing body 3 and the conical structure, the grain particles and binder can be more thoroughly kneaded and mixed in the annular cavity, so that the grain particles are more stably and tightly bonded by the binder. At the same time, the grain particles can also move along the annular cavity to the discharge pipe 21 to achieve automatic discharge. Through the above settings, the third mixing process also realizes the continuous mixing of grain particles and the first-in-first-out of grain particles.

[0049] The first mixing, second mixing, adhesive spraying, and third mixing described above are continuous, and all of them allow the grain particles that enter the mixing first to be discharged first, enabling the mixing device to have a continuous production function. This effectively solves the problems of traditional mixing devices not being able to continuously mix and not being able to achieve first-in-first-out material flow, effectively improving production efficiency and the uniformity of grain particle mixing in the mixing device.

[0050] Specifically, such as Figure 6 and Figure 8As shown, the material spreading mechanism 6 includes a rotating column 61 mounted on a hollow shaft 4. The rotating column 61 is cylindrical, and its axis coincides with the axis of the hollow shaft 4. The rotating column 61 is located inside the material drop pipe 13 and above the spray hole 51. Its top is a conical surface with the cone apex facing upward. There is an annular gap between the rotating column 61 and the inner wall of the material drop pipe 13. Multiple first guide grooves 62 are opened along the axial direction on the periphery of the rotating column 61. The first guide grooves 62 are evenly arranged along the periphery of the rotating column 61. In application, because the top of the rotating column 61 is a conical surface, the grain particles passing through the partition plate 14 will enter the periphery of the top of the rotating column 61 along the conical surface at the bottom of the premixing tank 1. At the same time, the hollow shaft 4 drives the rotating column 61 to rotate, so that the grain particles on the periphery of the top of the rotating column 61 automatically enter the annular gap formed by the rotating column 61 and the discharge pipe 13. As the rotating column 61 rotates, the first guide groove 62 spreads the grain particles inside evenly on the wall of the discharge pipe 13, so that the grain particles fall evenly along the periphery of the spray hole 51. Through the structural design of the rotating column 61 and the drive of the hollow shaft 4, the grain particles can fall evenly, ensuring the uniformity of the adhesive spraying, thereby improving the uniformity of the mixing between the adhesive and the grain particles.

[0051] As a preferred structure, such as Figure 2 and Figure 6 As shown, the discharge pipe 13 is detachably connected to the top of the upper cavity of the mixing tank 2. Specifically, the discharge pipe 13 and the top of the upper cavity of the mixing tank 2 can be connected by other detachable methods such as flange connection or clamp connection, which facilitates the disassembly and cleaning of components such as the premixing tank 1, mixing tank 2, and stirring body 3, and improves the convenience of cleaning the device.

[0052] When grain particles sprayed with binder enter the annular cavity formed between the mixing tank 2 and the stirring body 3, the presence of the binder gives the grain particles a certain degree of stickiness. When the stirring body 3 rotates, this may cause the grain particles to move too slowly within the annular cavity, reducing production efficiency. As a preferred structure, such as... Figure 9 As shown, the upper and lower cones of the mixing body 3 have multiple second guide grooves 31 evenly arranged along the circumference of the mixing body 3. The paths of the second guide grooves 31 are arc-shaped and convex towards the rotation direction of the mixing body 3. When the mixing body 3 rotates, the second guide grooves 31 on the upper cone carry the grain particles into the upper end of the annular cavity, causing the grain particles to move along the cavity and mix simultaneously. When the grain particles enter the middle of the annular cavity, the second guide grooves 31 on the lower cone carry the grain particles into the lower end of the annular cavity, causing the grain particles to move along the cavity towards the discharge pipe 21, while mixing simultaneously. By setting the second guide grooves 31, the discharge speed of the grain particles can be effectively increased while ensuring the uniformity of mixing, thereby improving the mixing efficiency of the mixing device.

[0053] Example 2

[0054] As a further implementation of the above embodiment 1, such as Figure 5 and Figure 8 As shown, the discharge hole 142 is a strip-shaped hole, the length of which is adapted to the radius of the baffle plate 14. Each first stirring shaft 41 is set perpendicular to the axis of the hollow shaft 4. In each group, the first stirring shafts 41 are evenly arranged around the axis of the hollow shaft 4, and the number is the same as the number of discharge holes 142. The length and width of the first stirring shaft 41 are adapted to the length and width of the discharge hole 142, respectively. The projected outlines of any two adjacent groups of first stirring shafts 41 along the axis of the hollow shaft 4 do not coincide. Each second stirring shaft 42 is set perpendicular to the axis of the hollow shaft 4. In each group, there are multiple second stirring shafts 42 and they are evenly arranged around the axis of the hollow shaft 4. The projected outlines of any two adjacent groups of second stirring shafts 42 along the axis of the hollow shaft 4 do not coincide. In application, the length of the discharge hole 142 is adapted to the radius of the partition plate 14. When a set of first stirring shafts 41 near the partition plate 14 rotates, the first stirring shafts 41 can push the grain particles gathered from the edge to the middle of the partition plate 14 into the discharge hole 142. This can effectively avoid the problem of grain particles accumulating at the edge of the partition plate 14 and not being able to be pushed into the discharge hole 142, thus ensuring the first-in-first-out function of the mixing device.

[0055] Example 3

[0056] As a further implementation of the above embodiment 1, such as Figure 7 As shown, a stirring chamber 22 is formed by protruding from the middle of the mixing tank 2 along its periphery. The middle of the stirring body 3 is cylindrical. A set of three stirring shafts 32 is provided in the middle of the stirring body 3. There are six third stirring shafts 32, which are evenly arranged around the axis of the stirring body 3. The axes of each third stirring shaft 32 are coplanar and perpendicularly intersecting the axis of the stirring body 3. Two sets of fourth stirring shafts 23 are provided on the cavity wall of the stirring chamber 22 and are evenly arranged along the axis of the mixing tank 2. There are six fourth stirring shafts 23 in each set, which are evenly arranged around the periphery of the stirring chamber 22. The axes of each fourth stirring shaft 23 in each set are coplanar and perpendicularly intersecting the axis of the mixing tank 2. The projections of each set of fourth stirring shafts 23 along the axis of the mixing tank 2 coincide. Each set of fourth stirring shafts 23 is separated by one set of third stirring shafts 32. Accordingly, the distance between the fourth stirring shafts 23 and the third stirring shafts 32 along the axis of the mixing tank 2 should be reasonably set to avoid the distance between the fourth stirring shafts 23 and the third stirring shafts 32 being too close, thereby causing a shearing effect on the grain particles. In application, after entering the annular cavity, the grain particles enter the mixing chamber 22, where they undergo further mixing and blending under the action of the third mixing shaft 32 and the fourth mixing shaft 23. The mixture then passes through the annular cavity and exits through the discharge pipe 21. The arrangement of the mixing chamber 22, the third mixing shaft 32, and the fourth mixing shaft 23 further improves the uniformity of the mixing of the grain particles sprayed with binder.

[0057] Example 4

[0058] As a further implementation of embodiment 1 above, such as Figure 1 and Figure 2 As shown, a mounting plate 7 is parallel to the top of the premix tank 1. Support rods 71 ​​are vertically mounted at the four corners of the mounting plate 7. Three storage tanks 72 are located above the mounting plate 7 for storing three different types of grain particles. The storage tanks 72 are connected to corresponding feed holes 12 via feeding pipes 73, and can continuously feed grain particles into the premix tank 1. A liquid storage tank 74 is located above the mounting plate 7 for feeding slurry into the liquid storage pipe 5. Figure 10 As shown, a first motor 75 is also provided above the mounting plate 7, with its drive end passing through the mounting plate 7 and coaxially connected to a drive gear 76. A driven gear 43 is coaxially provided on the upper part of the hollow shaft 4, and the driven gear 43 meshes with the drive gear 76. Support rings 77 are fitted on the outside of both the premixing tank 1 and the discharge pipe 13. Four support frames 78 are connected around the support rings 77, and the other ends of the support frames 78 are respectively connected to the corresponding support rods 71. A second motor 79 is provided below the mixing tank 2, with its drive end coaxially connected to the bottom of the stirring body 3. By setting up components such as the mounting plate 7, support rods 71, and support rings 77, the installation structure of the mixing device can be optimized, and the stability of the operation of the mixing device can be effectively improved.

[0059] Specifically, such as Figure 7 As shown, the interior of the stirring body 3 is hollow, which can effectively reduce the weight of the stirring body 3 and reduce the load on the second motor 79.

[0060] As another preferred structure, in order to avoid affecting the material discharge from the discharge pipe 21, the hollow shaft 4 and the liquid storage pipe 5 can be integrated into one structure, and the stirring body 3 can be placed at the lower end of the liquid storage pipe 5. In this way, the same drive source can be used to drive the hollow shaft 4 and the stirring body 3 to rotate simultaneously.

[0061] The above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A cereal grain mixing device, characterized in that: include: A premixing barrel (1) is provided with a feed hole (12) at the top, a drop pipe (13) with a smaller diameter is coaxially provided at the bottom, a partition plate (14) is provided in the middle section of the premixing barrel (1), and a discharge hole (142) is provided on the partition plate (14); The mixing barrel (2) has an upper cavity and a lower cavity which are connected to each other, and the upper cavity and the lower cavity are both conical structures, and the cone bottoms are arranged opposite to each other. The lower end of the mixing barrel (2) is provided with a discharge pipe (21) which is connected to the lower cavity, and the lower end of the discharge pipe (13) is inserted into the upper cavity. The stirring body (3) is coaxially arranged inside the mixing barrel (2), and comprises an upper cone and a lower cone. There are annular cavities between the outer wall of the upper cone and the inner wall of the upper cavity, and between the outer wall of the lower cone and the inner wall of the lower cavity. The stirring body (3) is arranged to rotate around its own axis. A hollow shaft (4) is coaxially arranged in the premixing barrel (1) and is arranged to rotate around its own axis. A plurality of groups of first stirring shafts (41) and second stirring shafts (42) are evenly arranged along the axis of the hollow shaft (4). The first stirring shafts (41) are located above the material separator (14). A group of first stirring shafts (41) close to the material separator (14) is separated from the top of the material separator (14) by a predetermined distance. The shape of the first stirring shafts (41) is adapted to the shape of the discharge hole (142). When the hollow shaft (4) rotates around its own axis at a predetermined angle, a group of first stirring shafts (41) close to the material separator (14) can completely block the discharge hole (142). The second stirring shafts (42) are located below the material separator (14). A liquid storage tube (5) is coaxially arranged inside the hollow shaft (4), and a spray hole (51) is circumferentially opened at the lower end of the liquid storage tube (5), and the spray holes (51) all protrude from the lower end of the hollow shaft (4); The material spreading mechanism (6) is arranged on the hollow shaft (4) in the material dropping pipe (13) and is located above the spray hole (51), and is used to make the granular material fall evenly along the circumference of the spray hole (51).

2. A grain mixing device according to claim 1, characterized in that: The material spreading mechanism (6) comprises a rotating column (61) arranged on the hollow shaft (4). The rotating column (61) is a cylinder, and its axis is arranged to coincide with the axis of the hollow shaft (4). The rotating column (61) is located in the material dropping pipe (13) and above the spray hole (51). Its top is a conical surface with the top of the cone facing upward. There is an annular gap between the rotating column (61) and the inner wall of the material dropping pipe (13) for making the material drop evenly along the circumference.

3. A grain mixing device according to claim 2, characterized in that: A plurality of first guide grooves (62) are provided on the circumference of the rotating column (61) along the axial direction, and the first guide grooves (62) are evenly arranged along the circumference of the rotating column (61).

4. A cereal grain mixing device according to claim 1, characterized in that: The discharge hole (142) is a strip hole, each first stirring shaft (41) is arranged perpendicular to the axis of the hollow shaft (4), the first stirring shafts (41) in each group are evenly arranged around the axis of the hollow shaft (4), and the number is consistent with the number of the discharge holes (142), the length and width of the first stirring shafts (41) are respectively adapted to the length and width of the discharge holes (142), and the projection contours of any two adjacent groups of first stirring shafts (41) along the axis of the hollow shaft (4) do not overlap; each second stirring shaft (42) is arranged perpendicular to the axis of the hollow shaft (4), there are multiple second stirring shafts (42) in each group and they are evenly arranged around the axis of the hollow shaft (4), and the projection contours of any two adjacent groups of second stirring shafts (42) along the axis of the hollow shaft (4) do not overlap.

5. A grain mixing device according to claim 1, characterized in that: The middle part of the mixing barrel (2) is protruded along the circumference thereof to form a stirring chamber (22); the middle part of the stirring body (3) is cylindrical; a plurality of groups of third stirring shafts (32) are arranged evenly along the axis in the middle part of the stirring body (3); each group includes a plurality of third stirring shafts (32) evenly arranged around the axis of the stirring body (3); the axes of the third stirring shafts (32) in each group are coplanar and perpendicular to the axis of the stirring body (3); and the projections of the third stirring shafts (32) in each group along the axis of the stirring body (3) are overlapped.

6. A grain mixing device according to claim 5, characterized in that: A plurality of groups of fourth stirring shafts (23) are arranged evenly along the axis on the wall of the stirring chamber (22), and each group includes a plurality of fourth stirring shafts (23) evenly arranged along the circumference of the stirring chamber (22). The axes of the fourth stirring shafts (23) in each group are coplanar and perpendicularly intersect the axis of the mixing barrel (2), and the projections of the fourth stirring shafts (23) of each group along the axis of the mixing barrel (2) overlap. Each group of fourth stirring shafts (23) is arranged with one group of third stirring shafts (32) between them.

7. A grain mixing device according to claim 1, characterized in that: The upper cone and the lower cone of the stirring body (3) are provided with a plurality of second guide grooves (31) evenly arranged along the circumference of the stirring body (3); the paths of the second guide grooves (31) are in the form of arcs and convex toward the rotation direction of the stirring body (3).

8. A grain mixing device according to claim 1, characterized in that: A mounting plate (7) is parallelly arranged on the top of the premixing barrel (1), support rods (71) are vertically arranged at the four corners of the mounting plate (7), a plurality of material storage boxes (72) are arranged above the mounting plate (7), the material storage boxes (72) are respectively connected to the corresponding material feeding holes (12) through feeding pipes (73), a liquid storage box (74) is arranged above the mounting plate (7) for conveying slurry to the liquid storage pipe (5), a first motor (75) is also arranged above the mounting plate (7), a driving end of which passes through the mounting plate (7) and is coaxially connected to a driving gear (76), a driven gear (43) is coaxially arranged on the upper part of the hollow shaft (4), and the driven gear (43) is meshed with the driving gear (76), a support ring (77) is sleeved on the outer side of the top of the premixing barrel (1) and the upper cavity, four support frames (78) are connected to the peripheral side of the support ring (77), and the other ends of the support frames (78) are respectively connected to the corresponding support rods (71).

9. A grain mixing device according to claim 1, characterized in that: A second motor (79) is provided below the mixing barrel (2), and a driving end of the second motor (79) is coaxially connected to the bottom of the stirring body (3).

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