Drying device capable of reducing nutlet shell sticking

Abstract

The drying device comprises a drying chamber, a first discharge pipe, a bucket elevator and a return pipe, the interior of the drying chamber is hollow, the first discharge pipe is communicated with the lower portion of an inner cavity of the drying chamber, an inclined plate is arranged on the lower portion of the drying chamber, and the lower end of the inclined plate is flush with the first discharge pipe; a feeding port of the bucket elevator is connected with an inner cavity of the drying chamber through a first discharging pipe, and a discharging port of the bucket elevator communicates with one end of a material returning pipe. When the macadamia nut drying device is used for drying macadamia nuts, the macadamia nuts at the bottom of the drying chamber are lifted through the bucket elevator and then flow back into the drying chamber through the material return pipe, the macadamia nuts continuously roll and are impacted in the moving process, so that kernels shake in shells, grease and sugar separated out from the kernels are not prone to being gathered at a point after shaking, and the drying efficiency is improved. The method can prevent the dried oil and sugar from sticking the kernels in the shells, can improve the proportion of the complete kernels when the kernels are taken, and improves the profit of macadamia nut processing enterprises.

Description

Technical Field

[0001] This application relates to the technical field of macadamia nut processing, and particularly to a drying device that can reduce the adhesion of kernels to the shell. Background Art

[0002] Macadamia nuts, also known as Hawaiian nuts, are widely loved by consumers for their rich nutrition and good taste. During the processing of macadamia nuts, they need to be dried. In existing processing enterprises, after macadamia nuts are sent into the drying device by a hoist, the inside of the drying device is heated by hot air circulation. After the macadamia nuts are heated up, the moisture in the shell and kernel evaporates rapidly, thereby improving the taste of macadamia nuts and increasing their shelf life at the same time. The kernel of macadamia nut is slightly smaller than the shell. When using the existing drying device, the macadamia nuts are in a static state during drying. After the kernels are heated, oil and sugar will be separated out and flow to the lower part of the kernels. After drying, these oil and sugar will solidify, causing the lower part of the kernels to adhere to the shell. When cracking the shell to obtain the kernels, the kernels are easily broken. The unit price of the broken kernels is 1 / 3 to 1 / 5 of that of the whole kernels. Therefore, how to reduce the probability of kernel-shell adhesion during drying is crucial for increasing the profit of macadamia nuts. Thus, a drying device that can reduce kernel-shell adhesion is needed, which can continuously turn the macadamia nuts during drying, reduce the probability of shell adhesion, increase the proportion of whole kernels when cracking the shell, and thereby increase the profit of macadamia nut processing enterprises. Summary of the Utility Model

[0003] To solve the above problems, this application provides a drying device that can reduce the adhesion of kernels to the shell, which can continuously turn the macadamia nuts during drying, reduce the probability of shell adhesion, increase the proportion of whole kernels when cracking the shell, and thereby increase the profit of macadamia nut processing enterprises.

[0004] This application is achieved through the following technical solutions:

[0005] This application provides a drying device that can reduce the adhesion of kernels to the shell, including: a drying chamber, a first discharge pipe, a bucket elevator, and a return pipe. The inside of the drying chamber is hollow. The first discharge pipe is connected to the lower part of the inner cavity of the drying chamber. An inclined plate is provided at the lower part of the drying chamber, and the lower end of the inclined plate is flush with the first discharge pipe. The feed inlet of the bucket elevator is connected to the inner cavity of the drying chamber through the first discharge pipe. The discharge outlet of the bucket elevator is connected to one end of the return pipe, and the other end of the return pipe is inserted into the drying chamber and extends above the higher end of the inclined plate.

[0006] Further, one end of the return pipe is provided with an annular part, the annular part surrounds the outside of the bucket elevator, and one side of the annular part is connected to the discharge outlet of the bucket elevator.

[0007] Further, the return pipe has an angle of 5° to 10° with the horizontal plane, and a discharge hole is provided at the position of the return pipe above the higher end of the inclined plate.

[0008] Further, 1 to 4 first discharge pipes are provided on the drying chamber, and the number of the return pipes and the bucket elevators corresponds to that of the first discharge pipes.

[0009] Further, a second discharge pipe is provided at the lower part of the drying chamber, and a baffle is inserted inside the second discharge pipe.

[0010] Further, guide plates are provided on both sides of the lower end of the inclined plate.

[0011] Advantages of the present application: When drying macadamia nuts, the macadamia nuts at the bottom of the drying chamber are lifted by the bucket elevator and then flow back into the drying chamber through the return pipe. During the movement, the macadamia nuts roll continuously and are impacted, causing the kernels to shake in the shells. The oil and sugar separated from the kernels are not easily concentrated at one point after shaking, which can prevent the kernels from sticking to the shells after drying of the oil and sugar. When taking out the kernels, the proportion of intact kernels can be increased, and the profit of macadamia nut processing enterprises can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a schematic structural diagram of the second discharge pipe of the present utility model;

[0014] Figure 3 is a schematic structural diagram of the interior of the drying chamber of the present utility model;

[0015] In the figure: 1 - drying chamber, 2 - first discharge pipe, 3 - bucket elevator, 4 - return pipe, 5 - inclined plate, 6 - annular part, 8 - second discharge pipe, 9 - guide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Among them, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0018] In addition, the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0019] As Figures 1 to 3 shown, an embodiment of the present utility model provides a drying device capable of reducing the sticking of nuts to the shell, including: a drying chamber 1, a first discharge pipe 2, a bucket elevator 3, and a return pipe 4. The inside of the drying chamber 1 is hollow. The first discharge pipe 2 is communicated with the lower part of the inner cavity of the drying chamber 1. An inclined plate 5 is provided at the lower part of the drying chamber 1, and the lower end of the inclined plate 5 is flush with the first discharge pipe 2. The feed inlet of the bucket elevator 3 is connected to the inner cavity of the drying chamber 1 through the first discharge pipe 2. The discharge outlet of the bucket elevator 3 is communicated with one end of the return pipe 4, and the other end of the return pipe 4 is inserted into the drying chamber 1 and extends above the higher end of the inclined plate 5.

[0020] After macadamia nuts are picked, they go through processes such as grading and removing the green husks, and then are sent into the drying chamber 1 by a feeding elevator. The drying chamber 1 holds up the macadamia nuts through an inclined plate 5, leaving a space at the lower part of the drying chamber 1. After a hot air blower passes hot air into the space below the inclined plate 5, the hot air rises through the small holes on the inclined plate 5 and heats the macadamia nuts, raising their temperature, thereby accelerating the evaporation rate of the moisture in the macadamia nuts. After being heated, the hot air is discharged from the upper part of the drying chamber 1. The heating blower automatically switches between the internal circulation or external circulation mode according to the humidity situation to discharge the moisture outside the drying chamber 1. When drying macadamia nuts, the bucket elevator 3 starts. The lifting buckets on one side of the feeding port of the bucket elevator 3 continuously move upward driven by a motor. The macadamia nuts in the drying chamber 1 enter the bucket elevator 3 through the first discharge pipe 2. After falling into the hopper in the bucket elevator 3, the hopper is lifted to the upper part of the bucket elevator 3. The hopper will turn 180° at the upper part of the bucket elevator 3, pour out the macadamia nuts in the hopper, and discharge them through the discharge port of the bucket elevator 3. Then the macadamia nuts fall into the annular part 6 of the return pipe 4 and roll along the return pipe 4 under the action of gravity. Finally, they fall through the discharge hole at the end of the return pipe 4 to the upper part of the drying chamber 1. Through the continuous operation of the bucket elevator 3, the macadamia nuts in the drying chamber 1 are in a flowing state. During the movement of the macadamia nuts, they will roll, and will also be impacted when coming down through the discharge hole, causing the kernels to shake in the shells. The oil and sugar separated from the kernels are not easy to gather at one point after shaking, which can prevent the oil and sugar from sticking the kernels to the shells after drying, and can improve the proportion of complete kernels when taking out the kernels, increasing the profit of macadamia nut processing enterprises.

[0021] In a preferred embodiment, as Figure 1 、 Figure 2 shown, one end of the return pipe 4 is provided with an annular part 6. The annular part 6 surrounds the outside of the bucket elevator 3, and one side of the annular part 6 is communicated with the discharge port of the bucket elevator 3. The bucket elevator 3 uses a commercially available bucket elevator on the market, and its feeding port and discharge port are not on the same side. Therefore, it is necessary to guide the macadamia nuts at the discharge port through the annular part 6 so that they can fall back into the return pipe 4 after being discharged from the other side of the bucket elevator 3, realizing the circulating flow of macadamia nuts.

[0022] Specifically, as Figure 3 shown, the return pipe 4 has an angle of 5° to 10° with the horizontal plane, so that the macadamia nuts in the return pipe 4 can spontaneously roll towards the lower end of the return pipe 4 under the action of gravity. The return pipe 4 is provided with a discharge hole at a position above the higher end of the inclined plate 5. The higher end of the inclined plate 5 is far from the first discharge pipe 2, and the macadamia nuts at the higher end of the inclined plate 5 will flow orderly to the first discharge pipe 2 under the guidance of the inclined plate 5 and enter the bucket elevator 3, realizing the orderly flow of macadamia nuts, so that all the macadamia nuts in the entire drying chamber 1 can flow into the bucket elevator 3.

[0023] In a specific embodiment, as Figure 2 shown, there are 1 to 4 first discharge pipes 2 provided on the drying chamber 1, and the number of the return pipes 4 and the bucket elevators 3 corresponds to that of the first discharge pipes 2. Through the cooperation of multiple bucket elevators 3, the flow rate of macadamia nuts is increased, thereby reducing the probability of adhesion between the kernels and the shells of macadamia nuts.

[0024] Specifically, a second discharge pipe 8 is provided at the lower part of the drying chamber 1, and a baffle is inserted inside the second discharge pipe 8. After drying, the macadamia nuts in the drying chamber 1 can be discharged through the second discharge pipe 8 and enter the next processing step.

[0025] Preferably, as Figure 3 shown, there are guide plates 9 on both sides of the lower end of the inclined plate 5, which can guide the macadamia nuts on both sides of the lower end of the inclined plate 5 into the first discharge pipe 2, avoiding flow dead corners, so as to ensure that all the macadamia nuts in the entire drying chamber 1 can flow into the bucket elevator 3.

[0026] Certainly, the present application can also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by those of ordinary skill in the art without any creative work belong to the scope protected by the present application.

Claims

1. A drying device capable of reducing the sticking of nuts to the shell, characterized in that: include: A drying chamber (1), a first discharge pipe (2), a bucket elevator (3), and a return pipe (4); the drying chamber (1) is hollow inside, the first discharge pipe (2) is connected to the lower part of the inner cavity of the drying chamber (1), an inclined plate (5) is provided at the lower part of the drying chamber (1), and the lower end of the inclined plate (5) is flush with the first discharge pipe (2); the feed port of the bucket elevator (3) is connected to the inner cavity of the drying chamber (1) through the first discharge pipe (2), the discharge port of the bucket elevator (3) is connected to one end of the return pipe (4), and the other end of the return pipe (4) is inserted into the drying chamber (1) and extends to the upper part of the higher end of the inclined plate (5).

2. A drying device capable of reducing the sticking of nuts to the shell according to claim 1, characterized in that: An annular portion (6) is provided at one end of the return pipe (4), the annular portion (6) surrounds the outside of the bucket elevator (3), and one side of the annular portion (6) is connected to the discharge port of the bucket elevator (3).

3. A drying device capable of reducing the sticking of nuts to the shell according to claim 2, characterized in that: The return pipe (4) has an angle of 5° to 10° with the horizontal plane, and the return pipe (4) is provided with a discharge hole at a position above the higher end of the inclined plate (5).

4. A drying device capable of reducing the sticking of nuts to the shell according to claim 3, characterized in that: The drying chamber (1) is provided with 1 to 4 first discharge pipes (2), and the number of the return pipes (4) and the bucket elevators (3) corresponds to the number of the first discharge pipes (2).

5. A drying device capable of reducing the sticking of nuts to the shell according to claim 1, characterized in that: A second material discharge pipe (8) is provided at the lower part of the drying chamber (1), and a baffle is inserted inside the second material discharge pipe (8).

6. A drying device capable of reducing the sticking of nuts to the shell according to claim 1, characterized in that: Material guide plates (9) are provided on both sides of the lower end of the inclined plate (5).

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