A circulating food processing drying system

Abstract

This utility model discloses a circulating food processing and drying system, relating to the field of food processing and drying technology, aiming to solve the technical problem of poor functionality in existing circulating food processing and drying systems. The system includes a machine body; a circulating conveying component installed on the inner side wall of the machine body, including drying trays and chutes, wherein there are several drying trays that can be driven by an intermittent drive component to circulate and translate along the trajectory of the chutes; a drying tray including a tray body with several perforations on its surface; and an intermittent drive component installed on the outer side wall of the machine body. This utility model uses the intermittent drive component to drive several drying trays to circulate and translate along the trajectory of the chutes, vertically lifting and lowering them to circulate and dry materials. During the drying process, this reduces material turning and breakage due to turning. In the intermittent state, the lifting component drives several top-feeding rods to rise and then fall synchronously, allowing the top-feeding rods to insert into the perforations to push out the material and then pull them out, reducing material sticking to the bottom.

Description

Technical Field

[0001] This utility model relates to the field of food processing and drying technology, and more specifically, to a circulating food processing and drying system. Background Technology

[0002] In the food processing industry, dehydration and drying are common processing methods to extend the shelf life of food and facilitate storage and transportation. Among these methods, circulating food processing drying systems are widely used in the processing of dehydrated vegetables and other foods due to their high efficiency and energy savings. Taking dehydrated vegetable processing as an example, the drying process is as follows: First, in the pretreatment stage, fresh vegetables (such as carrots and leafy greens) are washed to remove surface impurities and then cut into strips (5-10mm). They are then blanched to deactivate the oxidases in the vegetables, preventing browning during subsequent processing and thus ensuring the color and quality of the dehydrated vegetables. The pretreated material then enters the initial feeding stage, where... The material is fed into the drying host via a conveyor belt, and the drying host starts working. Hot air is blown from the bottom upwards, allowing the material to fully contact the hot air and initiating the dehydration process. To ensure uniform dehydration, the system enters a material circulation stage. After the surface moisture evaporates, the circulation conveyor sends the material to the upper track, where it flips and falls to the lower level. This "contact with hot air - dehydration" process is repeated (3-5 cycles, adjusted according to the target moisture content). To ensure full contact between the material and the hot air and reduce the problem of localized over-drying or over-wetting in traditional static drying, the final step is the discharge inspection. After the circulation is complete, the material is tested by a moisture analyzer. If it passes the test, it is discharged; otherwise, it is returned to the circulation system for secondary drying to ensure product quality.

[0003] The current system has significant drawbacks in the material circulation process. When the circulating conveyor sends the material to the upper track and it falls to the lower level after flipping, the surface moisture has evaporated, making the material more fragile and prone to breakage. This affects the appearance and integrity of the product. Furthermore, some vegetables, due to their sugar and starch content, tend to stick to the conveyor during contact. This reduces the contact area between the material and hot air, affecting dehydration and causing uneven drying. The sticky material also requires manual cleaning, increasing labor intensity. In addition, untimely cleaning may affect the processing of subsequent materials, reducing the overall efficiency of the system. Therefore, we propose a circulating food processing and drying system. Utility Model Content

[0004] The purpose of this invention is to provide a circulating food processing and drying system to address the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: including a body;

[0006] A circulating conveying assembly, installed on the inner side wall of the machine body, includes drying trays and chutes. There are several drying trays, which can be driven by an intermittent drive assembly and move cyclically along the trajectory of the chutes.

[0007] A drying tray includes a tray body, the surface of which is provided with a plurality of perforations;

[0008] Intermittent drive assembly, mounted on the outer wall of the machine body;

[0009] The top material assembly includes several top material rods and a lifting assembly. The top material rods can be driven by the lifting assembly. The lifting assembly can cooperate with an intermittent drive assembly. When the intermittent drive assembly is in an intermittent state, the lifting assembly can drive several top material rods to rise and fall synchronously, so that the top material rods are inserted into the hole to push material and then pulled out.

[0010] As a further description of the above technical solution: a hot air circulation system is installed at the air inlet at the bottom of the machine body, and a sliding seat is installed on the inner side wall of the machine body.

[0011] As a further description of the above technical solution: a limiting frame is fixed on the outer periphery of the top of the disk body.

[0012] As a further description of the above technical solution: the circulating conveying assembly also includes a circulating shell, inside which sprockets are installed. There are two sprockets arranged symmetrically. A chain is meshed with the outer wall of the sprocket. A groove that matches the chain track is opened on one side of the circulating shell. A sliding member is slidably connected to the inner wall of the groove. Several sliding members are equidistantly arranged on the outer wall of the chain along the chain track. A drying tray is installed at the end of the sliding member.

[0013] As a further description of the above technical solution: the intermittent drive assembly includes a driven groove wheel coaxially disposed at the end of one of the sprockets, the power input end of the driven groove wheel is connected to a driving turntable, the power input end of the driving turntable is connected to a motor, an intermittent frame is installed on the outer wall of the machine body, and the driving turntable and the driven groove wheel are both rotatably mounted on the inner wall of the intermittent frame via a rotating rod.

[0014] As a further description of the above technical solution: the top material assembly also includes a filter screen, the power input end of the filter screen is connected to a lifting component, a number of top material rods that can cooperate with the leakage holes are installed in an equidistant array on the top of the filter screen, and a slider is installed on the outer side wall of the filter screen, the slider being slidably connected to the inner side wall of the sliding seat.

[0015] In the above technical solution, the circulating food processing and drying system provided by this utility model has the following beneficial effects:

[0016] This invention uses an intermittent drive component to drive several drying trays to move cyclically and vertically along the track of the chute to dry materials. During the drying process, the material is turned over less, reducing the chance of breakage due to turning. In the intermittent state, the lifting component drives several top material rods to rise and fall synchronously, so that the top material rods insert into the hole to push the material out and then pull it out, reducing the chance of material sticking to the bottom. This solves the problem of poor functionality of existing circulating food processing and drying systems. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the exploded structure provided for an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure provided for an embodiment of the present utility model;

[0020] Figure 3 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure provided for an embodiment of the present utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Dryer; 2. Circulating conveyor assembly; 3. Intermittent drive assembly; 4. Top material assembly;

[0024] 101. Body; 102. Sliding base; 103. Hot air circulation system;

[0025] 201. Circulation shell; 202. Sprocket; 203. Chain; 204. Sliding component; 205. Drying tray; 206. Slide groove;

[0026] 2051, Disc body; 2052, Limiting frame; 2053, Drain hole;

[0027] 301. Driving turntable; 302. Driven pulley; 303. Electric motor; 304. Intermittent frame;

[0028] 401. Filter screen; 402. Lifting assembly; 403. Sliding block; 404. Top material bar. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] Please see Figures 1-4 This utility model embodiment provides a technical solution: including a body 101;

[0031] In another embodiment of the present invention, preferably, a hot air circulation system 103 is installed at the air inlet at the bottom of the body 101, and a sliding seat 102 is installed on the inner side wall of the body 101. The body 101, the sliding seat 102 and the hot air circulation system 103 constitute the existing dryer 1.

[0032] The hot air circulation system 103 adopts existing products and can be composed of existing heaters, circulating fans, dehumidification modules and air ducts. It can deliver temperature-controlled dry hot air into the machine body 101 and realize the closed-loop circulation of hot air through the air duct design. Vertical sliding seats 102 are symmetrically fixed on the inner side wall of the machine body 101 to provide guide rails for the lifting and lowering of the top material assembly 4.

[0033] Preferably, a sliding component (such as a sliding groove or a sliding ball) matching the circulation trajectory of the drying tray 205 can be provided on the inner side wall of the machine body 101 and the open end of the drying tray 205 to make the circulation of the drying tray 205 more stable.

[0034] The circulating conveying component 2 is installed on the inner side wall of the machine body 101, including drying trays 205 and chutes 206. There are several drying trays 205 and they can be driven by the intermittent drive component 3 to move cyclically along the trajectory of the chutes 206.

[0035] In another embodiment of the present invention, preferably, the circulating conveying component 2 further includes a circulating shell 201. A sprocket 202 is installed inside the circulating shell 201. There are two sprockets 202 arranged symmetrically. A chain 203 is meshed with the outer wall of the sprocket 202. A groove 206 that can match the trajectory of the chain 203 is opened on one side of the circulating shell 201. A sliding member 204 is slidably connected to the inner wall of the groove 206. There are several sliding members 204, which are equidistantly arranged on the outer wall of the chain 203 along the trajectory of the chain 203. A drying tray 205 is installed at the end of the sliding member 204.

[0036] The circulating conveying assembly 2, installed inside the machine body 101, is used to realize the circulating conveying and uniform drying of materials; it includes a circulating shell 201, fixed to the inner wall of the machine body 101; sprockets 202, rotatably installed inside the circulating shell 201 via a rotating shaft, arranged symmetrically from top to bottom (the line connecting the centers of the two sprockets 202 is perpendicular to the horizontal plane); a chain 203, meshing with the two sprockets 202 to form a closed vertical circulating transmission structure; and a chute 206, opened on the side of the circulating shell 201 facing the inside of the machine body 101, whose trajectory perfectly matches the movement path of the chain 203 (forming a racetrack-shaped closed loop with semicircles at both ends and a rectangle in the middle).

[0037] Sliding elements 204 are equidistantly distributed along the outer wall of the chain 203. One end of the sliding element 204 is connected to the chain 203, and the other end passes through the slide groove 206 and is fixedly connected to the drying tray 205. The sliding element 204 slides in cooperation with the inner wall of the slide groove 206 to ensure the smooth operation of the drying tray 205. The drying tray 205 is used to carry materials. The tray body 2051 is preferably made of food-grade stainless steel, and several perforations 2053 are evenly opened on the surface to facilitate the penetration of hot air and the material lifting operation. The limiting frame 2052 is set along the outer periphery of the top of the tray body 2051 to prevent materials from slipping off the edge during the circulating conveying process.

[0038] The drying tray 205 includes a tray body 2051, and the surface of the tray body 2051 is provided with a number of drainage holes 2053;

[0039] In another embodiment of the present invention, preferably, a limiting frame 2052 is fixed on the outer periphery of the top of the disc body 2051.

[0040] Intermittent drive assembly 3 is installed on the outer wall of body 101;

[0041] In another embodiment of the present invention, preferably, the intermittent drive assembly 3 includes a driven grooved wheel 302 coaxially disposed at the end of one of the sprockets 202. The power input end of the driven grooved wheel 302 is connected to the driving turntable 301, and the power input end of the driving turntable 301 is connected to the electric motor 303. An intermittent frame 304 is installed on the outer wall of the machine body 101. The driving turntable 301 and the driven grooved wheel 302 are both rotatably mounted on the inner wall of the intermittent frame 304 via a rotating rod.

[0042] The intermittent drive assembly 3 is installed on the outer wall of the machine body 101 and provides intermittent power to the circulating conveying assembly 2. It includes an intermittent frame 304, which is fixed to the outer wall of the machine body 101; a motor 303, which is fixed to the outer wall of the intermittent frame 304 and can drive the active turntable 301; the active turntable 301 is fixedly connected to the output shaft of the motor 303 through a rotating rod and rotates synchronously with the motor 303; the driven grooved wheel 302 is rotatably installed on the upper part of the intermittent frame 304 through a rotating rod, one side of which cooperates with the active turntable 301 through a pin-groove structure (forming a grooved wheel mechanism), and the other side is coaxially fixedly connected to the sprocket 202 above the circulating conveying assembly 2; through the characteristics of the grooved wheel mechanism, the continuous rotation of the motor 303 is converted into the intermittent rotation of the sprocket 202, thereby realizing the intermittent circulating motion of the drying tray 205.

[0043] The top material assembly 4 includes several top material rods 404 and a lifting assembly 402. The top material rods 404 can be driven by the lifting assembly 402. The lifting assembly 402 can cooperate with the intermittent drive assembly 3. When the intermittent drive assembly 3 is in an intermittent state, the lifting assembly 402 can drive several top material rods 404 to rise and fall synchronously, so that the top material rods 404 can be inserted into the drain hole 2053 to push material and then pulled out.

[0044] In another embodiment of the present invention, preferably, the top material assembly 4 further includes a filter screen 401, the power input end of the filter screen 401 is connected to a lifting assembly 402, a plurality of top material rods 404 that can cooperate with the leakage holes 2053 are installed in an equidistant array on the top of the filter screen 401, and a slider 403 is installed on the outer side wall of the filter screen 401, the slider 403 is slidably connected to the inner side wall of the sliding seat 102.

[0045] The top material assembly 4 is located below the corresponding drying tray 205 (preferably at the bottom to prevent obstruction of the circulating movement of the drying tray 205) and is used to top the material during the drying process to prevent the material from sticking to the tray body 2051. It includes a filter screen 401 with a hollow mesh structure to facilitate the passage of hot air and is horizontally set inside the machine body 101. The top material rods 404 preferably have a hemispherical head, and their number and position correspond one-to-one with the holes 2053 of the drying tray 205 (the diameter is smaller than the holes 2053 for easy insertion and removal).

[0046] The lifting assembly 402 can be a cylinder or an electric push rod, with its top end connected to the bottom of the filter screen 401, which can drive the filter screen 401 and the top material bar 404 to lift and lower vertically for material lifting; the slider 403 is fixed to the outer wall of the filter screen 401 and is slidably connected to the sliding seat 102 on the inner side of the machine body 101 to ensure the stability of the filter screen 401 during the lifting process.

[0047] The top material assembly 4 and the intermittent drive assembly 3 are linked through an existing external control system, such as a PLC control system. When the intermittent drive assembly 3 is in an intermittent state (i.e., when the drying tray 205 is stationary), the lifting assembly 402 is started synchronously, driving the top material rod 404 to rise and insert into the drain hole 2053 (the rising height makes the top of the top material rod 404 extend 1-2mm beyond the upper surface of the tray 2051). After the adhered material is lifted away from the tray 2051, the top material rod 404 is driven to descend and reset. The material can be lifted up when it is not completely dry. At this time, the material is less likely to break than when it is completely dry, and the anti-sticking effect is better.

[0048] It should be noted that the top material assembly 4 needs to be positioned vertically below the position where the drying tray 205 is stopped, so that the top material assembly 4 can top the material when the drying tray 205 stops.

[0049] Working principle: This embodiment provides a circulating food processing and drying system. During use,

[0050] In use, pre-treated materials (such as chopped vegetable strips) are evenly placed on drying trays 205. Powered by an external power source, the motor 303 is turned on via an external switch. The motor 303, through the cooperation of the active turntable 301 and the driven grooved wheel 302, drives the sprocket 202 to intermittently move the chain 203. This causes several drying trays 205 to circulate along the racetrack-shaped trajectory of the chute 206 (including an ascending section, a horizontal conveying section, a descending section, and a return section), achieving continuous material conveying within the machine body 101. Because the movement is vertical, the material is always supported on the drying trays 205, making it difficult for it to leave the trays, reducing the number of times the material is turned over and mitigating the breakage issues that occur with existing circulating conveying mechanisms. The hot air circulation system 103 continuously supplies hot air into the machine body 101. The hot air penetrates the material layer through the holes 2053 of the drying tray 205, completing heat exchange and moisture evaporation. Preferably, an existing dehumidifier can be installed and used in conjunction with it. The hot and humid air is dehumidified and then reheated for reuse. When the drying tray 205 moves with the chain 203 to above the top material assembly 4, the intermittent drive assembly 3 enters an intermittent state (the drying tray 205 is stationary). At this time, the lifting assembly 402 drives the top material bar 404 to rise synchronously, pushing any potentially sticky material away from the tray body 2051 through the holes 2053. Then, the top material bar 404 descends and resets. The material continues to circulate with the drying tray 205, and is dried after multiple cycles of hot air contact.

[0051] The intermittent drive component 3 drives several drying trays 205 to circulate and move vertically along the track of the chute 206 to dry the material. During the drying process, the material is turned over, which reduces the chance of the material breaking due to turning over. In the intermittent state, the lifting component 402 drives several top material bars 404 to rise and fall synchronously, so that the top material bars 404 insert into the hole 2053 to push the material and then pull it out, which reduces the chance of the material sticking to the bottom. It is especially suitable for drying easily broken and highly viscous vegetable materials (the hot air circulation system 103, motor 303 and lifting component 402 are all existing products and are all connected to an external power supply and external switch).

[0052] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A circulating food processing and drying system, characterized in that, Including the body (101); The circulating conveying component (2) is installed on the inner side wall of the machine body (101) and includes a drying tray (205) and a chute (206). There are several drying trays (205) and they can be driven by the intermittent drive component (3) to move cyclically along the trajectory of the chute (206). The drying tray (205) includes a tray body (2051), and the surface of the tray body (2051) is provided with a plurality of drainage holes (2053); Intermittent drive assembly (3) is installed on the outer wall of the body (101); The top material assembly (4) includes several top material rods (404) and a lifting assembly (402). The top material rods (404) can be driven by the lifting assembly (402). The lifting assembly (402) can cooperate with the intermittent drive assembly (3). When the intermittent drive assembly (3) is in an intermittent state, the lifting assembly (402) can drive several top material rods (404) to rise and fall synchronously, so that the top material rods (404) can be inserted into the drain hole (2053) to push material and then pulled out.

2. The circulating food processing and drying system according to claim 1, characterized in that, A hot air circulation system (103) is installed at the air inlet at the bottom of the body (101), and a sliding seat (102) is installed on the inner side wall of the body (101).

3. The circulating food processing and drying system according to claim 2, characterized in that, A limiting frame (2052) is fixed on the outer periphery of the top of the disk body (2051).

4. The circulating food processing and drying system according to claim 3, characterized in that, The circulating conveying assembly (2) further includes a circulating shell (201), inside which a sprocket (202) is installed. There are two sprockets (202) arranged symmetrically. A chain (203) is meshed with the outer wall of the sprocket (202). A groove (206) matching the track of the chain (203) is opened on one side of the circulating shell (201). A sliding member (204) is slidably connected to the inner wall of the groove (206). There are several sliding members (204) and they are equidistantly arranged on the outer wall of the chain (203) along the track of the chain (203). A drying tray (205) is installed at the end of the sliding member (204).

5. The circulating food processing and drying system according to claim 4, characterized in that, The intermittent drive assembly (3) includes a driven grooved wheel (302) coaxially disposed at the end of one of the sprockets (202). The power input end of the driven grooved wheel (302) is connected to a drive turntable (301). The power input end of the drive turntable (301) is connected to a motor (303). An intermittent frame (304) is installed on the outer wall of the machine body (101). The drive turntable (301) and the driven grooved wheel (302) are both rotatably mounted on the inner wall of the intermittent frame (304) via a rotating rod.

6. The circulating food processing and drying system according to claim 5, characterized in that, The top material assembly (4) also includes a filter screen (401). The power input end of the filter screen (401) is connected to a lifting assembly (402). Several top material rods (404) that can cooperate with the leakage holes (2053) are installed in an equidistant array on the top of the filter screen (401). A slider (403) is installed on the outer wall of the filter screen (401). The slider (403) is slidably connected to the inner wall of the sliding seat (102).

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