A continuous drying equipment for natto production

Abstract

The present invention relates to the technical field of drying equipment, and particularly to a continuous drying equipment for natto production, including an outer sleeve and an inner sleeve, etc.; the inner sleeve is rotatably connected inside the outer sleeve; a storage cavity is arranged inside the inner sleeve. The present invention realizes that natto drifts towards the sorting tank under the guidance of the guiding piece and is thus collected into the storage cavity, preventing the natto from being over-dried; the first filter screen shakes up and down to make the natto jump on the first filter screen, avoiding the natto from being in long-term contact and sticking with the first filter screen, and preventing the natto from sticking to the first filter screen and being unevenly dried; through the cooperation of the guiding piece and the first filter screen, the natto is separated under the action of rubbing, avoiding the natto from sticking to each other during the drying process, ensuring that the dried natto is blown into the storage cavity, and at the same time improving the drying effect on the natto; through the ejector rod, the first filter screen is deformed to be sunken upwards, so that the sugar substances adhered to the first filter screen are cracked and fall off, improving the drying effect of the equipment on the natto.

Description

Technical Field

[0001] The present invention relates to the technical field of drying equipment, and particularly relates to a continuous drying equipment for natto production. Background Art

[0002] The natto is dried by means of hot air transportation to reduce the moisture in the natto for convenient transportation and storage. During the drying process of the natto, one side of the natto is prone to facing the hot air for a long time, resulting in uneven drying of the natto, thereby affecting the drying effect of the natto. At the same time, since the surface of the natto contains sugar substances, the natto is also prone to sticking to the surface of the bearing structure during the drying process, and it is difficult for the subsequent natto to fall off the bearing structure, resulting in difficult feeding of the natto. At the same time, when the natto accumulates, the natto in the middle part cannot directly contact the hot air, resulting in incomplete drying of the natto at this position, while the natto at the lowermost side directly contacts the hot air, resulting in different drying degrees of the natto in the same batch.

[0003] At the same time, the viscous sugar substances on the surface of the natto are also prone to remain on the surface of the bearing structure, and long-term drying is likely to cause the sugar substances to deteriorate, thereby contaminating the natto during the drying process. Summary of the Invention

[0004] In order to overcome the disadvantages that when the existing equipment dries natto, one side of the natto faces the hot air for a long time, it is easy to cause uneven drying, and the sugar substances on the surface of the natto are easy to stick to the surface of the bearing structure and difficult to fall off. At the same time, when the natto accumulates, it is easy to have different drying degrees of the natto in the same batch. At the same time, the sugar substances are also easy to accumulate in the equipment for a long time and contaminate the natto, the present invention provides a continuous drying equipment for natto production.

[0005] The technical implementation scheme of the present invention is: a continuous drying equipment for natto production, including an outer sleeve, an inner sleeve, a feeding pipe, an air inlet pipe and a partition board; the inner sleeve is rotatably connected inside the outer sleeve; a storage cavity is arranged inside the inner sleeve; a plurality of feeding pipes are communicated with the outer sleeve; a plurality of air inlet pipes are communicated with the outer sleeve, and each air inlet pipe is connected to an external air pumping device; a plurality of partition boards are arranged inside the outer sleeve; further including a separation component, guiding pieces and limiting plates; a separation component for screening and drying natto is jointly connected between the outer sleeve and the inner sleeve; a plurality of guiding pieces for guiding the natto are installed on the separation component, and each guiding piece is made of silica gel material; a sliding part is arranged on the lower side of each guiding piece; each guiding piece is slidably connected with the outer sleeve through a spring on the sliding part; a plurality of sorting grooves are opened on the inner sleeve; a plurality of limiting plates are arranged inside the outer sleeve; the adhered natto is rubbed and separated by the cooperation of the guiding pieces and the limiting plates; the lower side of each limiting plate is connected to the adjacent guiding piece.

[0006] Optionally, the separating component includes a swivel, a slider, and a first filter screen; a plurality of swivels are slidably connected to the outer side of the inner sleeve; each swivel is in contact with the lower side of the adjacent guide piece; a plurality of sliders are fixedly connected to the outer surface of each swivel; a plurality of first sliding grooves are formed in the inner wall of each outer sleeve; each slider slides on the adjacent first sliding groove; a first filter screen for screening and drying natto is fixedly connected to each swivel.

[0007] Optionally, it further includes a ejector rod; a plurality of ejector rods for preventing the first filter screen from being blocked are fixedly connected to the upper side of each partition plate.

[0008] Optionally, a plurality of convex strips are provided on the lower side of the limiting plate.

[0009] Optionally, a plurality of separating balls are provided on the lower side of the guide piece, and a sealing diaphragm is provided between the guide piece and the blanking pipe.

[0010] Optionally, each first filter screen is arranged in a downwardly concave shape in the middle.

[0011] Optionally, each first sliding groove on the outer sleeve is arranged in a wavy shape.

[0012] Optionally, it further includes a connecting rod and a collection box; a plurality of second sliding grooves are formed in the inner sleeve; a plurality of collection boxes for preventing natto from being broken are slidably connected to each inner sleeve; four connecting rods are fixedly connected to each swivel; each connecting rod passes through the inner sleeve to support the adjacent collection box.

[0013] Optionally, it further includes a second filter screen; a second filter screen for screening hardened sugar is fixedly connected to each collection box.

[0014] Optionally, the second filter screen is arranged in a conical shape.

[0015] The present invention has the following advantages: The present invention realizes that natto drifts towards the sorting groove under the guidance of the guide piece and is thus collected in the storage cavity, preventing the natto from drying out too much;

[0016] By jolting the first filter screen up and down, the natto jumps on the first filter screen, avoiding long-term contact and adhesion between the natto and the first filter screen, preventing the natto from adhering to the first filter screen and drying unevenly, and at the same time preventing the natto from not being blown up;

[0017] Through the cooperation of the guide piece and the first filter screen, the natto is separated under the action of rubbing, avoiding mutual adhesion of the natto during the drying process, ensuring that the dried natto is blown towards the storage cavity, and at the same time improving the drying effect on the natto;

[0018] By the ejector rod, the first filter screen is deformed to be upwardly concave, so that the sugar substances adhered to the first filter screen crack and fall off, improving the drying effect of the equipment on the natto;

[0019] Collect natto through a collection box to prevent the natto from directly falling to the bottom of the storage cavity, avoid breaking the natto, and ensure the production quality of the natto;

[0020] The conical second filter screen makes it easier to separate the sugar substances and the natto, thereby improving the equipment's ability to screen out the sugar substances. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the continuous drying equipment for natto production of the present invention;

[0022] Figure 2 It is a combined cross-sectional view of the outer sleeve and the inner sleeve of the present invention;

[0023] Figure 3 It is the front view of the limit plate, the ejector rod and the first filter screen of the present invention;

[0024] Figure 4 It is a combined cross-sectional view of the guiding piece and the limit plate of the present invention;

[0025] Figure 5 It is the front view of the inner sleeve of the present invention;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the connecting rod, the collection box and the second filter screen of the present invention;

[0027] Figure 7 It is the front view of the connecting rod, the collection box and the second filter screen of the present invention.

[0028] The meanings of the reference numerals in the drawings: 1 - outer sleeve, 1001 - first chute, 2 - inner sleeve, 2001 - storage cavity, 2002 - sorting groove, 2003 - second chute, 3 - feeding pipe, 4 - air inlet pipe, 5 - guiding piece, 5001 - sliding part, 6 - limit plate, 7 - partition plate, 101 - swivel ring, 102 - slider, 103 - ejector rod, 104 - first filter screen, 105 - servo motor, 106 - first gear, 107 - second gear, 201 - connecting rod, 202 - collection box, 203 - second filter screen. Detailed Embodiments

[0029] Mentioning an embodiment herein means that a specific feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0030] Embodiment 1: A continuous drying equipment for natto production, as Figures 1-5As shown in the figure, it includes an outer sleeve 1, an inner sleeve 2, a blanking pipe 3, an air inlet pipe 4, and a partition 7; the inner sleeve 2 is rotatably connected inside the outer sleeve 1; a storage cavity 2001 is arranged inside the inner sleeve 2; three blanking pipes 3 are communicated with the outer sleeve 1; a plurality of air inlet pipes 4 are communicated with the outer sleeve 1, and each air inlet pipe 4 is connected to an external air pumping device; three partitions 7 are arranged inside the outer sleeve 1;

[0031] It further includes a separation component, guide pieces 5, and a limiting plate 6; a separation component is commonly connected between the outer sleeve 1 and the inner sleeve 2; three guide pieces 5 are installed on the separation component, and each guide piece 5 is made of silica gel; a sliding part 5001 is arranged on the lower side of each guide piece 5; each guide piece 5 is slidably connected to the outer sleeve 1 through a spring on the sliding part 5001; a plurality of sorting grooves 2002 are formed on the inner sleeve 2; three limiting plates 6 are arranged inside the outer sleeve 1; the lower side of each limiting plate 6 is connected to the adjacent guide piece 5.

[0032] The separation component includes a rotating ring 101, a slider 102, and a first filter screen 104; three rotating rings 101 are slidably connected to the outside of the inner sleeve 2; each rotating ring 101 is attached to the lower side of the adjacent guide piece 5; a plurality of sliders 102 are fixedly connected to the outer surface of each rotating ring 101; three first sliding grooves 1001 are formed on the inner wall of each outer sleeve 1; each slider 102 slides on the adjacent first sliding groove 1001; a first filter screen 104 is fixedly connected to each rotating ring 101.

[0033] It further includes a top rod 103; a plurality of top rods 103 are fixedly connected to the upper side of each partition 7.

[0034] It further includes a servo motor 105, a first gear 106, and a second gear 107; the servo motor 105 is fixedly connected to the outer sleeve 1; the output end of the servo motor 105 is fixedly connected to the first gear 106; the second gear 107 is fixedly connected to the outer surface of the inner sleeve 2; the second gear 107 meshes with the first gear 106.

[0035] A plurality of convex strips are arranged on the lower side of the limiting plate 6 to squeeze the guide piece 5 to generate deformation, facilitating the falling off of the natto adhered to the guide piece 5.

[0036] A plurality of separation balls are arranged on the lower side of the guide piece 5, and a sealing diaphragm is arranged between the guide piece 5 and the blanking pipe 3, so that the natto cannot fall above the guide piece 5, and at the same time, the natto is more easily rubbed and separated, preventing the natto from accumulating and sticking during the drying process.

[0037] Each first filter screen 104 is arranged in a downward concave shape in the middle.

[0038] Each first chute 1001 on the outer sleeve 1 is arranged in a wavy shape, which is convenient for driving the first filter screen 104 to vibrate up and down during the sliding process of the slider 102, preventing the natto from adhering to the surface of the first filter screen 104 for a long time on one side.

[0039] The natto is conveyed between the outer sleeve 1 and the inner sleeve 2 through the feeding pipe 3. By using the sealing diaphragm arranged between the guiding piece 5 and the feeding pipe 3, the natto cannot fall above the guiding piece 5, and then the natto falls on the first filter screen 104. Taking the top-down view as the reference, the servo motor 105 is started, which then drives the first gear 106 to rotate counterclockwise, thereby driving the second gear 107 and the inner sleeve 2 to rotate clockwise. Under the rotation of the inner sleeve 2, the rotating ring 101, the slider 102 and the first filter screen 104 are driven to rotate synchronously. Then the slider 102 slides on the first chute 1001. During the feeding process of the feeding pipe 3, the natto is spread on the upper side of the first filter screen 104. When the first filter screen 104 rotates a full circle, the feeding pipe 3 stops feeding. At this time, an external air pumping device is started to pump hot air into all the air inlet pipes 4, and then the hot air is conveyed from the air inlet pipes 4 between the outer sleeve 1 and the inner sleeve 2. The hot air conveyed by each layer of the air inlet pipes 4 only flows upward under the blockage of the partition plate 7, and then the hot air flows upward through the first filter screen 104, thereby drying the natto on the first filter screen 104.

[0040] During the drying process of the natto, the dried and qualified natto is lighter in weight, and the lighter natto can be easily blown up by the hot air blown out from the air inlet pipe 4. Then the natto drifts towards the sorting groove 2002 under the guidance of the guiding piece 5, so that the natto is collected into the storage cavity 2001 through the sorting groove 2002. The natto that is not completely dried continues to be dried on the first filter screen 104. When most of the natto is dried and collected into the storage cavity 2001, new natto is replenished through the feeding pipe 3 to continuously complete the natto drying process without stopping the machine, and at the same time prevent the natto from being over-dried.

[0041] In the above-mentioned sieving process of dried and undried natto, considering that there is a viscous sugar substance attached to the surface of natto, natto is likely to stick to each other during the drying process. When natto sticks to each other, even if the dried natto is of light weight, the overall weight of the dried natto increases when they stick together, resulting in the hot air discharged from the air inlet pipe 4 being unable to blow up and collect the stuck natto into the storage cavity 2001, causing the natto to be over-dried. Moreover, when natto is in contact with the first filter screen 104 for a long time on one side, it is also likely to adhere to the first filter screen 104 and cannot be blown up, resulting in uneven drying of natto and affecting the production quality. To avoid this phenomenon, when natto is dried on the first filter screen 104, with the top-down view as the reference, the slider 102 rotates clockwise on the first chute 1001, thereby driving the rotating ring 101 and the first filter screen 104 to rotate clockwise. Since the first chute 1001 is arranged in a wavy shape, the slider 102 also moves up and down during the sliding process, thereby driving the rotating ring 101 and the first filter screen 104 to vibrate up and down, so as to vibrate the natto on the first filter screen 104, making the natto jump on the first filter screen 104, avoiding long-term contact and adhesion between the natto and the first filter screen 104, and preventing the natto from being over-dried. At the same time, to prevent the natto from sticking to each other during the drying process, when the slider 102 drives the rotating ring 101 and the first filter screen 104 to move upward on the first chute 1001, the rotating ring 101 also drives the sliding part 5001 to move upward, thereby compressing the spring between the sliding part 5001 and the outer sleeve 1, and thus pushing the lower side of the guiding piece 5 upward, making the guiding piece 5 fit against the lower side of the limiting plate 6, and then deforming the guiding piece 5 to be parallel to the first filter screen 104.

[0042] It should be noted that: the initial state of the guiding piece 5 is in a stretched state as Figure 2 shown. When the lower side of the guiding piece 5 moves upward, the guiding piece 5 loses the stretching and contraction between the sliding part 5001 and the outer sleeve 1, and then the guiding piece 5 is parallel to the first filter screen 104. The distance between the guiding piece 5 and the first filter screen 104 can accommodate one natto. While the first filter screen 104 moves upward under the action of the slider 102, it also rotates, and then cooperates with the guiding piece 5 to knead the natto between the guiding piece 5 and the first filter screen 104, so that the natto is separated under the action of kneading. When the first filter screen 104 moves downward, the spring between the sliding part 5001 and the outer sleeve 1 drives the guiding piece 5 to stretch back as Figure 2In the state where the natto is kneaded, the kneaded natto is dispersed under the action of moving up and down on the first filter screen 104. By kneading the natto multiple times, it is avoided that the natto adheres to each other during the drying process, ensuring that the dried natto is blown towards the storage cavity 2001 by the hot air, improving the collection effect of the natto, and at the same time ensuring that each surface of the natto faces the hot air to make the drying more uniform. At the same time, since the viscous sugar substances on the surface of the natto will harden during the drying process, and the hardened and adhered natto is also separated under the kneading of the guiding piece 5 and the first filter screen 104, enabling the dried natto to be smoothly blown up and collected. And the stretched guiding piece 5 is as Figure 3 shown, so that the hot air is guided by the lower side surface of the guiding piece 5 to blow towards the sorting groove 2002, and then guide the dried natto to blow towards the sorting groove 2002, and finally collect it into the storage cavity 2001.

[0043] It is also considered that since the viscous sugar substances on the surface of the natto are also likely to adhere to the surface of the first filter screen 104, and when too much sugar substance adheres to the surface of the first filter screen 104, the filter holes on the first filter screen 104 are blocked, resulting in the hot air blown out by the air inlet pipe 4 being difficult to pass through the first filter screen 104 and act on the natto, making it difficult to blow up the dried natto and difficult to ensure the uniform drying of the natto. And the sugar substances accumulated on the first filter screen 104 for a long time are prone to deterioration and contamination of the natto. To avoid this phenomenon, when the sugar substances adhering to the holes of the first filter screen 104 are dried and hardened, and at the same time when the slider 102 drives the first filter screen 104 to move downward to the lowest point of the first chute 1001, the lower side of the first filter screen 104 contacts the ejector rod 103, causing the first filter screen 104 to deform with an upward depression, and at the same time the first filter screen 104 also rotates, thereby causing the sugar substances adhering to the first filter screen 104 to crack and fall off, and finally being collected into the storage cavity 2001 together under the airflow blown out by the air inlet pipe 4, improving the drying effect of the equipment on the natto.

[0044] Embodiment 2: On the basis of Embodiment 1, as Figure 1 、 Figure 6 and Figure 7 shown, it further includes a connecting rod 201 and a collection box 202; a plurality of second chutes 2003 are opened in the inner sleeve 2; three collection boxes 202 are slidably connected in each inner sleeve 2; four connecting rods 201 are fixedly connected to each rotating ring 101; each connecting rod 201 passes through the inner sleeve 2 to support the adjacent collection box 202.

[0045] It further includes a second filter screen 203; a second filter screen 203 is fixedly connected in each collection box 202.

[0046] The second filter screen 203 is arranged in a conical shape.

[0047] Since the dried natto is hard and brittle, in order to reduce the dropping height of the natto, a collection box 202 is arranged below each sorting slot 2002 in the inner sleeve 2, so that when the natto is blown out from the sorting slot 2002, it falls on the collection box 202, preventing the natto from directly falling to the bottom of the storage cavity 2001 and avoiding the natto from being broken. At the same time, when the collection box 202 is full, an external lifting device hooks the collection box 202 and slides upward along the second chute 2003, so as to conveniently take out the dried natto. Finally, the collection box 202 is placed back at the position of the inner sleeve 2 along the second chute 2003, and each layer of connecting rod 201 bears the corresponding collection box 202.

[0048] It is also considered that the sugar substances adhered to the first filter screen 104 may be over-dried, and subsequently are also collected into the collection box 202 together with the natto. In order to reduce the subsequent sorting of sugar substances by workers, a second filter screen 203 is arranged on the collection box 202, so that the natto cannot pass through the second filter screen 203, and thus the natto remains on the upper side of the second filter screen 203. Since the sugar substances are smaller, they pass through the second filter screen 203 and are collected at the bottom of the collection box 202, reducing the labor cost. Since the sugar substances are smaller and lighter in mass, when the sugar substances are blown out from the sorting slot 2002, they fly farther than the natto, so that the sugar substances fly to the middle position of the second filter screen 203, while the natto falls along the conical second filter screen 203 to the side of the collection box 202, thereby improving the screening ability of the device for sugar substances. At the same time, under the sliding action of the slider 102 in the first chute 1001, the rotating ring 101 and the connecting rod 201 move up and down, thereby driving the collection box 202 and the second filter screen 203 to shake up and down, so that a small amount of sugar substances accumulated in the natto are screened out from the second filter screen 203 by shaking, further improving the screening ability of the device for sugar substances.

[0049] Although the present invention has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art from this disclosure that various changes or modifications can be made to the present invention without departing from the principle and spirit scope of the present invention defined by the claims. Therefore, the detailed description of the embodiments of this disclosure is only used to explain, rather than to limit the present invention, and the scope of protection is defined by the content of the claims.

Claims

1. A natto production continuous drying device, comprising an outer sleeve (1), an inner sleeve (2), a feed pipe (3), an air intake pipe (4) and a partition (7); the inner sleeve (2) is rotatably connected to the outer sleeve (1); a storage chamber (2001) is arranged in the inner sleeve (2); the outer sleeve (1) is connected to a plurality of feed pipes (3); the outer sleeve (1) is connected to a plurality of air intake pipes (4), and each air intake pipe (4) is connected to an external air pump device; a plurality of partitions (7) are arranged in the outer sleeve (1); the device is characterized in that: The invention also comprises a separation component, a guide sheet (5) and a limit plate (6); a separation component for screening and drying natto is connected between the outer sleeve (1) and the inner sleeve (2); a plurality of guide sheets (5) for guiding natto are installed on the separation component, and each guide sheet (5) is made of silica gel; a sliding part (5001) is arranged on the lower side of each guide sheet (5); each guide sheet (5) is slidably connected to the outer sleeve (1) via a spring on the sliding part (5001); a plurality of sorting slots (2002) are arranged on the inner sleeve (2); a plurality of limit plates (6) are arranged in the outer sleeve (1); the adhered natto is kneaded and separated by the cooperation of the guide sheets (5) and the limit plates (6); the lower side of each limit plate (6) is connected to the adjacent guide sheet (5); The separation component comprises a rotating ring (101), a sliding block (102) and a first filter screen (104); a plurality of rotating rings (101) are slidably connected to the outer side of the inner sleeve (2); each rotating ring (101) is in contact with the lower side of an adjacent guide plate (5); a plurality of sliding blocks (102) are fixedly connected to the outer surface of each rotating ring (101); a plurality of first sliding grooves (1001) are formed on the inner wall of each outer sleeve (1); each sliding block (102) slides on an adjacent first sliding groove (1001); and a first filter screen (104) for screening and drying natto is fixedly connected to each rotating ring (101); A plurality of convex strips are arranged on the lower side of the limiting plate (6).

2. A natto production continuous drying device according to claim 1, characterized in that: It also includes a push rod (103); a plurality of push rods (103) are fixedly connected to the upper side of each partition plate (7) to prevent the first filter screen (104) from being blocked.

3. A natto production continuous drying device according to claim 1, characterized in that: A plurality of separation balls are arranged on the lower side of the guide plate (5), and a sealing diaphragm is arranged on the guide plate (5) and the discharge pipe (3).

4. A natto production continuous drying device according to claim 2, characterized in that: Each first filter screen (104) is configured to have a downwardly concave middle portion.

5. A natto production continuous drying device according to claim 1, characterized in that: Each first sliding groove (1001) on the outer sleeve (1) is configured to be wavy.

6. A natto production continuous drying device according to claim 1, characterized in that: It also includes a connecting rod (201) and a collection box (202); a plurality of second sliding grooves (2003) are provided in the inner sleeve (2); a plurality of collection boxes (202) for preventing natto from breaking are slidably connected in each inner sleeve (2); four connecting rods (201) are fixedly connected to each rotating ring (101); and each connecting rod (201) passes through the inner sleeve (2) to support an adjacent collection box (202).

7. A natto production continuous drying device according to claim 6, characterized in that: It also includes a second filter screen (203); each collection box (202) is fixedly connected with a second filter screen (203) for screening hardened sugar.

8. A natto production continuous drying device according to claim 7, characterized in that: The second filter screen (203) is configured to be conical.

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