Nut drying device

By designing a nut drying device with upper and lower stepped boxes and a shaking screen component, the problems of nut accumulation and uneven drying were solved, achieving a highly efficient and uniform nut drying effect. Furthermore, the drying efficiency of the nuts was improved through heat circulation.

CN223929445UActive Publication Date: 2026-02-24ZHE JIANG TAI FENG SHI PIN KE JI YOU XIAN GONG SI
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Patent Information

Application Number
CN202520408556.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-02-24
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Existing nut drying methods suffer from uneven drying and low efficiency due to nut accumulation, and hot air drying requires manual turning, which affects quality.

Method used

Design a nut drying device that uses a stepped box and a shaking screen assembly. The nut is fed intermittently by the lateral movement of the transmission frame. The separation and turning of the nuts are accelerated by the deflection and shaking of the inclined screen plate. The drying efficiency is improved by combining the heat circulation assembly.

Benefits of technology

It achieves uniform drying of nuts, reduces accumulation, improves drying efficiency, and further enhances the drying effect of nuts through heat recycling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a nut drying device. The nut drying device comprises a rack; the box body is arranged on the rack and is distributed in an up-and-down step shape; each vibrating screen assembly comprises a transmission frame, an inlet groove and an outlet groove, the transmission frames are installed in the box bodies in a sliding mode, and the inlet groove and the outlet groove correspond to the feeding port and the discharging port and are formed in the top and the side wall of each transmission frame; the wedge block is fixed to the transmission frame and arranged below the outlet groove, the sieve plate is obliquely arranged in the transmission frame, one end of the sieve plate and the wedge block are rotationally installed through a pin shaft arranged on the wedge block, and a transmission assembly is arranged between the other end of the sieve plate and the box body. On one hand, due to the fact that the inlet groove in the transmission frame can be communicated with the feeding port in the box body, the intermittent feeding process of nuts is achieved; on the other hand, the inclined sieve plate arranged in the transmission plate can accelerate the separation, turn-over and drying processes of the kernels on the sieve plate in a mode of deflection shaking with the pin shaft as the axis.
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Description

Technical Field

[0001] This utility model relates to the field of food processing technology, specifically to a nut drying device. Background Technology

[0002] Nut drying is a key step in food processing, aiming to remove moisture, extend shelf life, and improve taste. Currently, commonly used drying methods include natural air drying and hot air drying. However, natural drying relies on sunlight and natural wind, which is low in cost but time-consuming and greatly affected by the weather. Hot air drying dries nuts by heating the air, which is more efficient, but the nuts tend to pile up, resulting in uneven drying temperature and affecting quality. At the same time, the nuts need to be turned over repeatedly. Therefore, a nut drying device is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a nut drying device. This device consists of two interconnected boxes arranged in an upper and lower stepped manner, with an internal shaking screen assembly. As the shaking screen assembly moves laterally, on the one hand, the inlet groove on the transmission frame can connect with the feed port on the box, thus realizing the intermittent feeding process of nuts, thereby reducing nut accumulation and improving the drying effect of nuts; on the other hand, the inclined screen plate built into the transmission plate can be deflected and shaken by a pin shaft, accelerating the separation, turning and drying process of nuts on the screen plate.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a nut drying device, comprising: a frame; boxes arranged in a stepped manner on the frame, each box having an inlet and an outlet at its top and bottom, wherein the outlet at the bottom of the upper box and the inlet at the top of the lower box are connected by a connecting box; and a shaking screen assembly disposed inside each box, the shaking screen assembly comprising a transmission frame slidably mounted inside the box, and inlet and outlet grooves corresponding to the inlet and outlet located on the top and side walls of the transmission frame; further comprising a wedge fixed to the transmission frame and positioned below the outlet groove, and a sieve plate obliquely positioned inside the transmission frame for receiving nuts, wherein one end of the sieve plate is rotatably mounted to the wedge via a pin on the wedge, and the other end is provided with a transmission assembly between it and the box; and a drying mechanism disposed inside each box.

[0005] Preferably, the transmission assembly includes a transmission plate disposed inside the transmission frame and capable of longitudinal movement, wherein the lower surface of the transmission plate and the bottom surface of the housing are provided with a plurality of sets of hinges, each set of hinges including a hinge block respectively fixed on the transmission plate and the housing, and a hinge rod hinged between two hinge blocks; and a top plate fixed on the side of the transmission plate away from the outlet groove, and the top plate overlaps with the side of the screen plate away from the pin.

[0006] Preferably, the side of the wedge block closest to the discharge port is an inclined surface.

[0007] Preferably, a feeding hopper is also fixed to the top of the box, and the outlet of the feeding hopper is connected to the upper edge of the feeding port.

[0008] Preferably, the frame is further provided with a cam drive assembly for driving the two sets of shaking screen components to operate synchronously. The cam drive assembly includes a mounting plate fixed on the frame, a motor mounted on the mounting plate, a cam body fixed to the motor, and two transmission rods, one end of which passes through through holes opened on two housings and is fixed to two transmission frames, and the other end is fixed with a transmission vertical plate that abuts against the cam body. It also includes a connecting block fixed on the frame, and a spring is connected between the connecting block and the transmission vertical plate for resetting the transmission vertical plate.

[0009] Preferably, the drying mechanism includes a plurality of heating tubes laid flat on the upper surface of each of the transmission plates and positioned below the sieve plate.

[0010] Preferably, the two housings are also equipped with heat circulation components, which include two through slots opened on the top of the two housings; a dehumidification module set on the top of the upper housing; a suction plate and an exhaust plate respectively fixed on the top of the upper and lower transmission frames, and the suction plate and the exhaust plate are respectively connected to the air inlet and exhaust port of the dehumidification module through connecting pipes; and a suction fan set on the exhaust plate as the power source for the suction plate to draw air and the exhaust plate to exhaust air.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention utilizes two interconnected, stepped housings with an internal shaking screen assembly. The lateral movement of the shaking screen assembly allows for intermittent feeding of nuts, as the inlet groove on the transmission frame connects to the feed inlet on the housing. This reduces nut accumulation and improves drying efficiency. Furthermore, the inclined screen plate built into the transmission plate can deflect and shake via a pivot, accelerating the separation, turning, and drying of nuts on the screen.

[0013] In another embodiment of this utility model, the suction plate and exhaust plate respectively set at both ends of the dehumidification module, together with the suction fan on the exhaust plate, transfer the heat inside the upper transmission frame to the lower transmission frame, realize the heat recycling process, and thus improve the drying effect of the nuts inside the lower transmission frame. Attached Figure Description

[0014] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a second-view three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is a front view structural diagram of the present utility model;

[0017] Figure 4 This is a side view of the structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of AA;

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of BB;

[0020] Figure 7 for Figure 6 A partially enlarged structural diagram.

[0021] In the diagram: 111, frame; 112, housing; 114, feed inlet; 115, discharge outlet; 116, connecting box; 117, feed bin; 211, transmission frame; 212, transmission plate; 213, top plate; 214, pin; 215, sieve plate; 216, heating tube; 217, hinge block; 218, hinge rod; 219, inlet groove; 220, outlet groove; 221, wedge block; 311, through groove; 312, suction plate; 313, dehumidification module; 314, exhaust plate; 315, connecting pipe; 411, mounting plate; 412, motor; 413, cam body; 414, transmission rod; 415, transmission vertical plate; 416, connecting block; 417, spring. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. The various embodiments of this utility model are described in detail below with reference to the accompanying drawings. Example

[0023] Please see Figures 1 to 7The present invention preferably provides the following technical solution: a nut drying device, comprising: a frame 111; boxes 112 arranged in a stepped manner on the frame 111, each box 112 having an inlet 114 and an outlet 115 at its top and bottom, wherein the outlet 115 at the bottom of the upper box 112 and the inlet 114 at the top of the lower box 112 are connected by a connecting box 116; and a vibrating screen assembly disposed inside each box 112, the vibrating screen assembly including a transmission frame 211 slidably installed inside the box 112, and inlet grooves 214 and 215 corresponding to the inlet 114 and outlet 115 respectively, located on the top and side wall of the transmission frame 211. The inlet 114 and outlet 220 are intermittently connected when the transmission frame 211 moves laterally; it also includes a wedge 221 fixed to the transmission frame 211 and placed below the outlet 220, and a sieve plate 215 obliquely placed inside the transmission frame 211 to receive nuts, wherein one end of the sieve plate 215 is rotatably mounted to the wedge 221 via a pin 214 provided on the wedge 221, and the other end is provided with a transmission assembly between it and the box 112, and when the transmission frame 211 moves laterally, the transmission assembly is used to drive the sieve plate 215 to shake up and down to accelerate the separation and drying process of nuts; it also includes a drying mechanism provided inside each box 112.

[0024] In this embodiment, the two boxes 112 are arranged in a stepped manner, combined with Figure 1 , 2 As shown, the discharge port 115 at the bottom of the upper chamber 112 and the inlet port 114 at the top of the lower chamber 112 are connected by a connecting box 116. Combined with the drying mechanism inside the chamber 112, a multi-stage drying process for the nuts can be achieved. The shaking sieve assembly inside each chamber 112 can shake the nuts, accelerating the separation, transportation, and drying process. Specifically, in conjunction with... Figure 5 , 6 As shown in Figure 7, the transmission frame 211 and the housing 112 are slidably installed laterally. The lower end of the inclined sieve plate 215 inside the transmission frame 211 is rotatably installed with the wedge 221 on the side of the housing 112 near the outlet groove 220 via the pin 214. The lower end of the sieve plate 215 is flush with the upper edge of the wedge 221, and the upper end of the sieve plate 215 is connected to the housing 112 by a transmission component. When the housing 112 moves laterally, the transmission component runs, and by driving the sieve plate 215 to deflect and shake around the pin 214, the separation, turning and drying process of the kernels on the sieve plate 215 is accelerated. Since some kernels stick together after washing, this application can shake the kernels to separate them, so as to accelerate the drying efficiency.

[0025] Since the inlet groove 219 at the top of the transmission frame 211 can be connected to the feed port 114 at the top of the box 112, when the box 112 moves laterally, the intermittent feeding process of nuts can be realized, which reduces the accumulation of nuts and improves the drying effect of nuts.

[0026] Furthermore, the transmission assembly includes a transmission plate 212 disposed inside the transmission frame 211 and capable of longitudinal movement. The lower surface of the transmission plate 212 and the inner bottom surface of the housing 112 are provided with several sets of hinges. Each set of hinges includes a hinge block 217 fixed on the transmission plate 212 and the housing 112 respectively, and a hinge rod 218 hinged between two hinge blocks 217. The top plate 213 is fixed on the side of the transmission plate 212 away from the outlet groove 220, and the top plate 213 overlaps with the side of the screen plate 215 away from the pin 214.

[0027] Here, the transmission frame 211 is installed horizontally with the housing 112, and several sets of hinges are provided between the transmission plate 212 and the frame 111. When the transmission frame 211 slides horizontally inside the housing 112, the hinges can push the transmission plate 212 to slide vertically inside the transmission frame 211. At this time, the top plate 213 of the end of the sieve plate 215 away from the outlet groove 220 can press against the end of the sieve plate 215 away from the outlet groove 220, thereby realizing the deflection and shaking process of the sieve plate 215 with the pin shaft 214 as the axis, thereby changing the inclination of the sieve plate 215, completing the shaking and sieving of the nuts on the sieve plate 215 and accelerating the drying process.

[0028] Furthermore, the side of the wedge 221 closest to the discharge port 115 is an inclined surface.

[0029] Combination Figure 6 , 7 The setting of wedge 221 can ensure that the kernels rolling off the screen plate 215 can smoothly enter the discharge port 115 during the transverse movement of the transmission frame 211.

[0030] Furthermore, a feed hopper 117 is fixed to the top of the housing 112, and the outlet of the feed hopper 117 is connected to the upper edge of the feed inlet 114, combined with... Figure 1-6 As shown, it is used for pre-storage of nuts before drying.

[0031] Furthermore, the frame 111 is also equipped with a cam drive assembly for driving the two sets of shaking screen components to operate synchronously. The cam drive assembly includes a mounting plate 411 fixed on the frame 111, a motor 412 mounted on the mounting plate, a cam body 413 fixed to the motor 412, and two transmission rods 414. One end of each transmission rod 414 passes through a through hole opened on the two housings 112 and is fixed to the two transmission frames 211. The other end is fixed with a transmission vertical plate 415 that abuts against the cam body 413. It also includes a connecting block 416 fixed on the frame 111. A spring 417 is connected between the connecting block 416 and the transmission vertical plate 415 for resetting the transmission vertical plate 415.

[0032] Combination Figure 1 , 2 As shown in Figures 3, 5, and 6, the transmission vertical plate 415 abuts against the cam body 413, and the transmission vertical plate 415 is fixed to the two transmission rods 414. The two transmission rods 414 are respectively fixed to the transmission frames 211 where the two sets of shaking screen components are located. Therefore, when the cam body 413 rotates under the power provided by the motor 412, it can push the transmission vertical plate 415 and the transmission rods 414 to move laterally. With the reset action of the spring 417 on the transmission vertical plate 415, the synchronous movement of the two transmission frames 211 is realized. Example

[0033] In another embodiment of this utility model, the drying mechanism includes a plurality of heating tubes 216 laid flat on the upper surface of each transmission plate 212 and positioned below the sieve plate 215, combined with Figure 5 , 6 As shown, several heating tubes 216 are laid flat on the upper surface of the transmission plate 212 and placed below the sieve plate 215. When the kernels enter the transmission frame 211 through the feed hopper 117, feed inlet 114, and inlet groove 219, the sieve plate 215 receives the kernels and shakes them. At this time, the heating tubes 216 can pre-dry the inside of the transmission frame 211. The pre-dried kernels enter the lower transmission frame 211 through the connecting box 116 to achieve a further drying process for the kernels. Example

[0034] In another embodiment of this utility model, the two boxes 112 are also provided with a heat circulation assembly. The heat circulation assembly includes two through slots 311 opened on the top of the two boxes 112; a dehumidification module 313 disposed on the top of the upper box 112; a suction plate 312 and an exhaust plate 314 respectively fixed on the top of the upper and lower transmission frames 211, and the suction plate 312 and the exhaust plate 314 are respectively connected to the air inlet and exhaust outlet of the dehumidification module 313 through connecting pipes 315; and a suction fan disposed on the exhaust plate 314 as the power source for the suction plate 312 to draw air and the exhaust plate 314 to exhaust air.

[0035] In this embodiment, the suction plate 312 and the exhaust plate 314 extend into the upper and lower transmission frames 211 respectively, and face the upper surfaces of the two sieve plates 215. With the help of the suction fan, when the kernels enter the upper transmission frame 211 and are placed on the upper surface of the upper sieve plate 215, the upper heating tube 216 dries the kernels. At the same time, the suction plate 312 can discharge the water vapor generated during the drying of the kernels to the exhaust plate 314 through the suction fan. During the process, the dehumidification module 313 completes the evaporation of water vapor, and the exhaust plate 314 discharges the evaporated water vapor, i.e., hot air, into the lower transmission frame 211 to realize the heat recycling process and further improve the drying effect of the kernels in the lower transmission frame 211.

[0036] It is worth noting that 313 here refers to existing mature technologies, which will not be elaborated upon further.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Among these, there are various methods of detachable installation, such as using a combination of plug-in and snap-fit, or using bolt connections, etc.

[0038] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.

Claims

1. A nut drying device, characterized in that, include: Rack (111); The box (112) arranged in a stepped manner on the frame (111) has a feed inlet (114) and a discharge outlet (115) at the top and bottom of each box (112), respectively. The discharge outlet (115) at the bottom of the upper box (112) and the feed inlet (114) at the top of the lower box (112) are connected by a connecting box (116). And a vibrating screen assembly disposed inside each of the housings (112), the vibrating screen assembly including a transmission frame (211) slidably installed inside the housing (112), and an inlet groove (219) and an outlet groove (220) corresponding to the inlet (114) and outlet (115) opened on the top and side wall of the transmission frame (211). It also includes a wedge (221) fixed to the transmission frame (211) and placed below the outlet groove (220), and a sieve plate (215) obliquely placed inside the transmission frame (211) for receiving nuts, wherein one end of the sieve plate (215) is rotatably mounted to the wedge (221) via a pin (214) provided on the wedge (221), and the other end is provided with a transmission assembly between it and the box body (112); It also includes a drying mechanism disposed inside each of the housings (112).

2. The nut drying device according to claim 1, characterized in that: The transmission assembly includes a transmission plate (212) disposed inside the transmission frame (211) and capable of longitudinal movement. The lower surface of the transmission plate (212) and the inner bottom surface of the housing (112) are provided with a number of sets of hinges. Each set of hinges includes a hinge block (217) fixed on the transmission plate (212) and the housing (112) respectively, and a hinge rod (218) is hinged between two hinge blocks (217). And a top plate (213) fixed on the side of the transmission plate (212) away from the outlet groove (220), and the top plate (213) overlaps with the side of the screen plate (215) away from the pin (214).

3. The nut drying device according to claim 1, characterized in that: The wedge (221) has an inclined surface on the side near the discharge port (115).

4. The nut drying device according to claim 1, characterized in that: The top of the box (112) is also fixed with a feeding hopper (117), and the outlet of the feeding hopper (117) is connected to the upper edge of the inlet (114).

5. A nut drying device according to claim 1, characterized in that: The frame (111) is also provided with a cam drive assembly that drives the two sets of shaking screen components to operate synchronously. The cam drive assembly includes a mounting plate (411) fixed on the frame (111), a motor (412) mounted on the mounting plate (411), and a cam body (413) fixed to the motor (412). And two transmission rods (414), one end of each transmission rod (414) passes through the through holes opened on the two housings (112) and is fixed to the two transmission frames (211), and the other end is fixed with a transmission vertical plate (415) that abuts against the cam body (413). It also includes a connecting block (416) fixed on the frame (111), and a spring (417) is connected between the connecting block (416) and the transmission vertical plate (415) for resetting the transmission vertical plate (415).

6. A nut drying device according to claim 2, characterized in that: The drying mechanism includes a plurality of heating tubes (216) laid flat on the upper surface of each of the transmission plates (212) and placed below the sieve plate (215).

7. A nut drying device according to claim 1, characterized in that: The two boxes (112) are also provided with heat circulation components, which include two through slots (311) opened on the top of the two boxes (112). And a dehumidification module (313) is installed on the top of the upper housing (112). It also includes a suction plate (312) and an exhaust plate (314) fixed on the top of the upper and lower transmission frames (211), and the suction plate (312) and the exhaust plate (314) are respectively connected to the air inlet and exhaust outlet of the dehumidification module (313) through connecting pipes (315); And a suction fan installed on the exhaust plate (314) serves as the power source for suction plate (312) to draw air and exhaust plate (314) to exhaust air.