Drying equipment and drying method for vegetable processing

Abstract

The invention discloses drying equipment for vegetable processing and a drying method, and relates to the technical field of vegetable drying, the drying equipment comprises a horizontally placed base, a solid stand column at the top of the base is fixedly connected with a supporting box, the two ends in the supporting box are rotationally connected with driving rollers, and the driving rollers are driven by a speed reduction electric appliance; the driving roller is sleeved with a conveying chain plate, the two ends of the inner side of the conveying chain plate are meshed with the outer sides of the two ends of the driving roller, and the two sides of the conveying chain plate are fixedly connected with intercepting strips distributed in the length direction of the conveying chain plate. According to the drying equipment for vegetable processing and the drying method, the multiple independent containing cavities are formed in the outer side of the conveying chain plate through the intercepting strips and the isolating strips, and vegetables are divided into small-batch units; the air bellow is combined with a sealing structure of the exhaust pipe to ensure uniform hot air coverage; the speed-adjustable driving roller controls the speed of the conveying chain plate through a speed reducing electric appliance and adjusts the residence time of the vegetables between the air bellow and the exhaust pipe; the distribution structure of the air inlet and the shunt pipe realizes uniform input of hot air.

Description

Technical Field

[0001] The present invention relates to the technical field of vegetable drying, in particular to drying equipment and a drying method for vegetable processing. Background Art

[0002] Drying equipment for vegetable processing is a mechanical equipment specially used to remove moisture from vegetables. It evaporates the moisture in vegetables through heating and ventilation, thereby preserving vegetables, extending shelf life, and facilitating storage and transportation.

[0003] For example, Chinese patent publication number CN216821562U discloses a vegetable dehydration and drying device, which includes a base plate, a support column fixedly installed at the bottom end of the base plate, a lower drying box fixedly installed at the top end of the base plate, an upper drying box fixedly installed at the top end of the lower drying box, and a first dryer and a second dryer installed on the top end of the upper drying box in sequence from right to left. The vegetables can be spread out flatly, and two sets of identical electric guide rails can transmit power to the vegetable drying plate through two electric sliders, which can realize position change and prevent the vegetables from being in the same position for a long time and being damaged by baking. The drying holes arranged at equal intervals can increase the contact area between the vegetables and the air, thereby improving the drying effect. Through the mutual cooperation of the lower drying box and the upper drying box, the vegetables can be dried from top to bottom, and the lower drying box and the upper drying box can be used separately or simultaneously, which is simple to operate and convenient to use. There is also a Chinese patent with publication number CN106595264A that discloses a vegetable drying device, including a drying chamber arranged on a material transmission system. The drying chamber is closed and has channels for the material conveying system to enter and exit on both sides. The conveyor belt of the material conveying system passes through the drying chamber from the channel, dividing the drying chamber into upper and lower cavities. Several groups of hot air blowers with heaters are arranged outside the drying chamber along the direction of the conveyor belt. The air inlet and air outlet of the hot air blower are connected in series with the upper and lower cavities of the drying chamber through the hot air inlet duct and the hot air outlet duct respectively. The vegetable materials are spread on the breathable conveyor belt and enter the drying chamber for hot air circulation drying. The reciprocating cycle of hot dry air is used to dry vegetables, which improves the drying efficiency of vegetables and the consistency of the dried products. Combined with the multi-stage drying chambers connected by conveyor belts, the quality of the products is improved, and the assembly line production of vegetable drying processing can be realized, thereby improving production efficiency.

[0004] During the operation of the existing technology, vegetables are evenly placed on a conveyor belt for transportation and drying at the same time. However, due to the poor sealing of the vegetables during movement, the drying efficiency is low, and the vegetables are easily piled up or scattered during the drying process, resulting in uneven heating. Summary of the Invention

[0005] The purpose of the present invention is to provide a drying device and a drying method for vegetable processing, so as to solve the problem in the above-mentioned background technology that the vegetables have poor sealing during movement, resulting in low drying efficiency, and the vegetables are easily piled up or scattered during the drying process, causing uneven heating.

[0006] To achieve the above object, the present invention provides the following technical solution: A drying device for vegetable processing, comprising a horizontally placed base, a solid column on the top of the base fixedly connected to a support box, and drive rollers rotatably connected at both ends of the support box, and the drive rollers are driven by a reduction electrical appliance; A conveying chain plate is sleeved on the outside of the driving roller, and the two ends of the inner side of the conveying chain plate are meshed with the outer sides of the two ends of the driving roller. Intercepting bars distributed along the length of the conveying chain plate are fixedly connected on both sides of the conveying chain plate, and isolation bars distributed equidistantly along the width of the conveying chain plate are fixedly connected on the outside of the conveying chain plate. The intercepting bars and the isolation bars form an independent placement cavity on the outside of the conveying chain plate, and a bellows is fixedly connected in the middle of the support box, and an exhaust pipe aligned with the bellows is fixedly connected to the top of the support box.

[0007] Preferably, the conveying chain plate is slidably connected between the top of the bellows and the bottom of the exhaust pipe, and the intercepting bar fixedly connected to the outside of the conveying chain plate forms a sealing structure when it moves to the side of the bellows and the exhaust pipe. The length of the bellows and the exhaust pipe is an integer multiple of the distance between the two isolation bars.

[0008] Preferably, an isolation net is fixedly connected to the bottom inner side of the exhaust pipe, and ventilation holes are evenly distributed on the top of the bellows. The conveying chain plate is slidably connected to the bottom of the isolation net, and the top of the isolation net is fitted with the intercepting bar and the top of the isolation bar. The top of the exhaust pipe is hinged with evenly distributed gravity bars, and the gravity bars completely cover the top of the exhaust pipe.

[0009] Preferably, a feeding port is provided at one end of the top of the support box, a cooling fan is fixedly connected to the bottom of the end of the support box away from the feeding port, and air inlets are evenly distributed on one side of the support box, the air inlets are communicated with the inside of the wind box, and a diversion pipe is fixedly connected to the outside of the support box through the air inlet, and the diversion pipe is provided with an output end and an input end aligned with each air inlet, and the input end of the diversion pipe is connected to the hot air supply equipment.

[0010] Preferably, the conveying chain plate is composed of chain plate sections hinged to each other at both ends, the chain plate sections are provided with evenly distributed openings, both ends of the chain plate sections are fixedly connected to connecting blocks, and both ends of the driving roller are fixedly connected to toothed discs.

[0011] Preferably, an engaging block is fixedly connected to the middle of the outer side of the connecting block, and the engaging block engages with the outer side of the toothed disc at both ends of the driving roller. The isolation strip is fixedly connected to the middle of the chain plate section, and its two ends and the connecting block are fixedly connected to each other. The outer side of the end of the connecting block away from the chain plate section is provided with equidistantly distributed tooth grooves.

[0012] Preferably, the two ends of the connection block are respectively provided with matching protrusions and grooves, the end portions of the connection blocks are spliced ​​together to form an interception bar, and the tooth grooves form a rack at the end portion of the interception bar.

[0013] Preferably, transmission gears and cleaning rollers are rotatably connected on both sides of the bottom of the support box through bearing seats. The transmission gears and cleaning rollers are equidistantly distributed on the bottom of the support box. A slot is provided at the bottom of the support box. The transmission gear extends to the inside of the support box through the slot and engages with the rack formed by the tooth groove at the end of the intercepting bar.

[0014] Preferably, both ends of the cleaning roller are fixedly connected with driven gears, the driven gears are meshed with the outer sides of the transmission gears, and the outer side of the cleaning roller is fixedly connected with evenly distributed cleaning bristles.

[0015] A drying method for vegetable processing drying equipment, the specific method steps are as follows S1: Vegetable raw materials are added to the conveyor chain through the feeding port. The vegetable raw materials fall into the independent placement cavity on the outside of the conveyor chain and are separated into small batch units by interception bars and isolation bars; S2: Start the speed reducer to drive the drive roller to rotate, driving the conveyor chain to move the vegetable raw materials at an adjustable speed. The speed of the conveyor chain is controlled by adjusting the speed of the speed reducer to accurately control the residence time of the vegetables between the air box and the exhaust pipe. S3: The hot air supply device provides hot air, which enters the bellows through the diversion pipe and the air inlet, and is evenly blown out from the ventilation holes on the top of the bellows, acting on the vegetable raw materials on the conveyor chain to evaporate moisture; S4: The moisture generated during the drying process is discharged through the exhaust pipe. The gravity baffle at the top of the exhaust pipe automatically opens under the moisture pressure to allow the moisture to be discharged, and automatically closes when the moisture pressure disappears or the equipment is idle; S5: When the vegetable raw materials are dried and moved to the end of the support box away from the feeding port, the cooling fan is started to blow cold air to cool the dried vegetables to prevent the vegetables from overheating; S6: The cooled vegetables are discharged from the end of the conveyor chain and collected.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The vegetable processing drying equipment and drying method form multiple independent placement cavities on the outside of the conveyor chain plate through intercepting bars and isolation bars, thereby separating vegetables into small batch units. The sealing structure of the bellows and the exhaust pipe is combined to ensure uniform hot air coverage. The adjustable speed drive roller controls the speed of the conveyor chain plate through a speed reduction electrical device to adjust the residence time of the vegetables between the bellows and the exhaust pipe. The distribution structure of the air inlet and the diverter pipe realizes uniform hot air input.

[0017] The chain links are hinged at both ends to form a conveyor chain, increasing flexibility to adapt to curved paths; the meshing blocks on the outside of the connecting block mesh with the toothed discs at both ends of the drive roller to transmit power; the chain links are evenly opened inside to allow airflow to penetrate; the isolation strip is fixed in the middle of the chain link and integrally connected to the connecting block; the protrusions and grooves at both ends of the connecting block are spliced ​​to form an interception strip to ensure structural integrity; the tooth grooves form end racks to facilitate power transmission.

[0018] The transmission gear meshes with the rack formed by the tooth groove at the end of the intercepting bar, and is driven synchronously by the movement of the conveyor chain plate; the driven gear is fixed at both ends of the cleaning roller and meshes with the transmission gear to form an acceleration structure, driving the cleaning roller to rotate; the cleaning soft bristles evenly distributed on the outside of the cleaning roller contact the surface of the conveyor chain plate to clean the residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the driving roller structure of the present invention; Figure 5 This is a schematic diagram of the chain plate link structure of the present invention; Figure 6 This is a schematic diagram of the shunt pipe structure of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the support box of the present invention; Figure 8 This is a schematic diagram of the conveyor chain plate structure of the present invention; Figure 9 For the present invention Figure 8 A in the middle is an enlarged structural diagram; Figure 10 This is a schematic structural diagram of the cleaning roller of the present invention.

[0020] In the figure: 1. Base; 2. Support box; 3. Drive roller; 4. Conveyor chain; 5. Interceptor bar; 6. Isolation bar; 7. Bellows; 8. Exhaust pipe; 9. Isolation net; 10. Ventilation hole; 11. Gravity baffle; 12. Feeding port; 13. Cooling fan; 14. Air inlet; 15. Diverter pipe; 16. Chain plate section; 17. Connecting block; 18. Meshing block; 19. Tooth groove; 20. Transmission gear; 21. Cleaning roller; 22. Driven gear. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1 - Figure 7 The present invention provides the following technical solutions: a drying equipment for vegetable processing, comprising a horizontally placed base 1, a solid column on the top of the base 1 is fixedly connected to a supporting box 2, and both ends of the support box 2 are rotatably connected to the driving roller 3, and the driving roller 3 is driven by a reduction electrical appliance; a conveying chain plate 4 is sleeved on the outside of the driving roller 3, and the inner ends of the conveying chain plate 4 are meshed with the outer ends of the driving roller 3. Both sides of the conveying chain plate 4 are fixedly connected with intercepting bars 5 distributed along their length, and the outer sides of the conveying chain plate 4 are fixedly connected with isolation bars 6 distributed equidistantly along their width, and the intercepting bars 5 and the isolation bars 6 form an independent placement cavity on the outside of the conveying chain plate 4. A bellows 7 is fixedly connected to the middle of the supporting box 2, and an exhaust pipe 8 aligned with the bellows 7 is fixedly connected to the top of the supporting box 2. The conveying chain plate 4 is slidably connected between the top of the bellows 7 and the bottom of the exhaust pipe 8, and the intercepting bar 5 fixedly connected to the outer side of the conveying chain plate 4 moves to the side of the bellows 7 and the exhaust pipe 8 The exhaust pipe 8 has a sealed structure, and the length of the bellows 7 and the exhaust pipe 8 is an integer multiple of the distance between the two isolation bars 6. The bottom of the inner side of the exhaust pipe 8 is fixedly connected to an isolation net 9, and the top of the bellows 7 is provided with equidistant ventilation holes 10. The conveying chain plate 4 is slidably connected to the bottom of the isolation net 9. The top of the isolation net 9 is in contact with the top of the interception bar 5 and the isolation bar 6. The top of the exhaust pipe 8 is hinged with equidistant gravity baffles 11, which completely covers the top of the exhaust pipe 8. A feeding port 12 is provided at one end of the top of the support box 2, and a cooling fan 13 is fixedly connected to the bottom of the end of the support box 2 away from the feeding port 12. An equidistant air inlet 14 is provided on one side of the support box 2, and the air inlet 14 is communicated with the inside of the bellows 7. A diverter pipe 15 is fixedly connected to the outside of the support box 2 through the air inlet 14. The diverter pipe 15 is provided with an output end and an input end aligned with each air inlet 14, and the input end of the diverter pipe 15 is connected to the hot air supply equipment.

[0023] The vegetable raw materials are added to the equipment from the outside through the feeding port 12, where the feeding port 12 is located at the top end of the support box 2, ensuring that the vegetables can fall directly onto the conveyor chain 4; after the vegetables are added, the conveyor chain 4 starts to run, and the operation is powered by the drive roller 3 through the reducer, which allows the speed to be adjusted, thereby realizing controllable adjustment of the speed of the conveyor chain 4, so as to flexibly manage the processing cycle of the vegetables; when the drive roller 3 rotates, the conveyor chain 4 sleeved on its outside moves accordingly, and the inner sides of the two ends of the conveyor chain 4 are fixed to the outside of the drive roller 3 by meshing, forming a closed circular conveying path to ensure the continuous flow of vegetables; during the movement of the conveyor chain 4, the intercepting bars 5 fixed on it are distributed along the length direction, and the isolation bars 6 are arranged equidistantly in the width direction. The two are combined to form multiple independent placement cavities on the outside of the conveyor chain 4, which effectively separate the vegetable raw materials into small batch units, prevent scattering or accumulation during transportation, and maintain batch uniformity.

[0024] When the conveying chain plate 4 moves to the vicinity of the bellows 7 and the exhaust pipe 8, the intercepting strip 5 slides to the side of the bellows 7 and the exhaust pipe 8 to form a sealing structure. The seal prevents the airflow from escaping and maximizes the utilization rate of the hot air. The length of the bellows 7 and the exhaust pipe 8 is set to an integer multiple of the distance between the two isolation strips 6, which ensures that each independent placement cavity on the conveying chain plate 4 can be evenly covered to achieve distributed processing of the hot air. The hot air is supplied through the air inlet 14, which is connected to the inside of the bellows 7. The hot air is introduced from the external hot air supply device and enters through the diverter pipe 15. into the system; the diverter pipe 15 is fixed to the outside of the support box 2 and is provided with an input end and an output end aligned with each air inlet 14. This design distributes the hot air evenly into the bellows 7; after the hot air enters the bellows 7, it is blown upward from the equidistant ventilation holes 10 set on the top of the bellows 7, and the heat flow directly acts on the vegetables on the conveyor chain plate 4 sliding on the top of the bellows 7; by controlling the rotation speed of the driving roller 3, the speed of the conveyor chain plate 4 can be adjusted, thereby accurately controlling the residence time of the vegetables between the bellows 7 and the exhaust pipe 8, thereby achieving adjustable drying time and optimization of moisture removal.

[0025] Under the action of hot air, the moisture in the vegetables quickly evaporates into moisture, which is then discharged through the exhaust pipe 8; an isolation net 9 is fixedly connected to the bottom of the inner side of the exhaust pipe 8, which prevents vegetable fragments from entering the exhaust system and causing blockage; at the same time, the conveying chain plate 4 slides on the bottom of the isolation net 9, and the top of the isolation net 9 fits with the top of the interception bar 5 and the isolation bar 6 to form a secondary sealing structure, ensuring that the hot air acts concentratedly on the surface of the vegetables, thereby improving the drying efficiency; after the moisture rises to the exhaust pipe 8, the top of the exhaust pipe 8 is hinged with equidistantly distributed gravity baffles 11, which naturally cover the top of the exhaust pipe 8 completely by their own weight; during the dehumidification process, the moisture pressure pushes up the gravity baffles 11 to allow the moisture to be discharged, and when the equipment is idle, the gravity baffles 11 automatically close to prevent foreign matter from entering the equipment, thereby maintaining the hygiene of the system; after drying is completed, the cooling fan 13 fixedly connected to the bottom of the end of the support box 2 away from the feeding port 12 is started to blow out cold air to cool the dried vegetables, thereby preventing the vegetables from being affected by overheating or denaturing, thereby ensuring the stability and preservation effect of the final product.

[0026] Example 2: Based on Example 1, please refer to Figure 5 , the following structure is also disclosed: the conveying chain plate 4 is composed of chain plate links 16 that are hinged to each other at both ends, and the chain plate links 16 are provided with evenly distributed openings inside. Both ends of the chain plate links 16 are fixedly connected to connecting blocks 17, and both ends of the driving roller 3 are fixedly connected to toothed disks. The middle of the outer side of the connecting block 17 is fixedly connected to an engaging block 18, and the engaging block 18 is engaged with the outer side of the toothed disk at both ends of the driving roller 3. The isolation bar 6 is fixedly connected to the middle of the chain plate link 16, and its two ends and the connecting block 17 are fixedly connected to each other. The outer side of the end of the connecting block 17 away from the chain plate link 16 is provided with equidistantly distributed tooth grooves 19. Matching protrusions and grooves are respectively provided at both ends of the connecting block 17. The end of the connecting block 17 is spliced ​​to each other to form an intercepting bar 5, and the tooth groove 19 forms a rack at the end of the intercepting bar 5.

[0027] The conveying chain plate 4 is composed of chain plate sections 16 hinged to each other at the ends. This structure allows the conveying chain plate 4 to move freely in a curved path and adapt to different layouts or sizes of the support box 2; both ends of the driving roller 3 are fixedly connected to a toothed disc, and both ends of the chain plate section 16 are fixedly connected to a connecting block 17, and the middle of the outer side of the connecting block 17 is fixedly connected to an engaging block 18, which directly engages with the outer side of the toothed disc at both ends of the driving roller 3; when the driving roller 3 is driven to rotate by the reduction electrical appliance, the engaging mechanism of the engaging block 18 and the toothed disc transmits power to ensure the smooth advancement of the conveying chain plate 4, avoid slipping or jamming during operation, and ensure the reliability of the conveying process.

[0028] The isolation strip 6 is fixedly connected in the middle of the chain plate section 16, and its two ends are fixedly connected to the connecting block 17 to form an integrated structure to enhance durability; the chain plate section 16 is provided with evenly distributed openings inside, which allow airflow to penetrate the chain plate structure during the drying process, and the hot air blown out from the ventilation holes 10 on the top of the bellows 7 can directly act on the vegetables on the conveying chain plate 4 through these openings, thereby improving air permeability and heat transfer efficiency; the outer side of the end of the connecting block 17 away from the chain plate section 16 is provided with equidistantly distributed tooth grooves 19, and these tooth grooves 19 form a continuous rack structure after multiple connecting blocks 17 are assembled; matching protrusions and grooves are respectively provided at both ends of the connecting block 17, and the protrusions are embedded in the grooves to achieve reliable splicing to form a complete intercepting strip 5; this mechanism ensures that the intercepting strip 5 is not easy to loosen during transportation, and when the intercepting strip 5 moves to the side of the bellows 7 and the exhaust pipe 8, it can still effectively maintain the sealing structure, prevent airflow leakage, and maintain the integrity of the hot air system.

[0029] Example 3: Based on Example 1 and Example 2, please refer to Figure 7 - Figure 10 , the following structure is also disclosed: a transmission gear 20 and a cleaning roller 21 are rotatably connected to both sides of the bottom of the support box 2 through a bearing seat, and the transmission gear 20 and the cleaning roller 21 are evenly distributed on the bottom of the support box 2. A slot is provided at the bottom of the support box 2. The transmission gear 20 extends to the inside of the support box 2 through the slot and engages with the rack formed by the tooth groove 19 at the end of the intercepting bar 5. Both ends of the cleaning roller 21 are fixedly connected to a driven gear 22, which engages with the outer side of the transmission gear 20, and the outer side of the cleaning roller 21 is fixedly connected with evenly distributed cleaning soft hair.

[0030] The transmission gear 20 extends to the inside of the equipment through the slot at the bottom of the support box 2 to work; the transmission gear 20 directly meshes with the rack formed at the end of the intercepting bar 5 through the slot at the bottom of the support box 2; when the conveyor chain plate 4 is driven by the driving roller 3, the rack at the end of the intercepting bar 5 moves to drive the transmission gear 20 to rotate, providing a power input mechanism; both ends of the cleaning roller 21 are fixedly connected to a driven gear 22, and the driven gear 22 meshes with the outer side of the transmission gear 20 to form an acceleration structure; when the transmission gear 20 rotates, it drives the driven gear 22 to drive the cleaning roller 21 to rotate.

[0031] The outside of the cleaning roller 21 is fixedly connected with evenly distributed cleaning bristles, which directly contact the surface of the conveyor chain plate 4 and the intercepting bar 5 area to clean up residues such as vegetable debris or dust; during operation, the movement of the conveyor chain plate 4 synchronously triggers the cleaning action: the rotation of the cleaning bristles removes sediment on the conveying path, prevents blockage and maintains the cleanliness of the interior of the equipment; this mechanism is integrated into the bottom of the support box 2, does not require an additional power source, and operates through the self-propelled power of the conveyor chain plate 4, reducing energy consumption and optimizing maintenance requirements.

[0032] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drying device for vegetable processing, comprising a horizontally placed base (1), wherein a solid column on the top of the base (1) is fixedly connected to a support box (2), and drive rollers (3) are rotatably connected to both ends of the support box (2), and the drive rollers (3) are driven by a reduction electrical device; Its characteristics are: The outer side of the driving roller (3) is provided with a conveying chain plate (4), and the inner ends of the conveying chain plate (4) are meshed with the outer sides of the two ends of the driving roller (3). The two sides of the conveying chain plate (4) are fixedly connected with intercepting bars (5) distributed along the length thereof, and the outer side of the conveying chain plate (4) is fixedly connected with isolation bars (6) distributed equidistantly along the width thereof. The intercepting bars (5) and the isolation bars (6) form an independent placement cavity on the outer side of the conveying chain plate (4). The middle of the support box (2) is fixedly connected with a bellows (7), and the top of the support box (2) is fixedly connected with an exhaust pipe (8) aligned with the bellows (7).

2. The vegetable processing drying equipment according to claim 1, characterized in that: The conveying chain plate (4) is slidably connected between the top of the bellows (7) and the bottom of the exhaust pipe (8), and an intercepting strip (5) fixedly connected to the outside of the conveying chain plate (4) moves to the side of the bellows (7) and the exhaust pipe (8) to form a sealing structure. The length of the bellows (7) and the exhaust pipe (8) is an integer multiple of the distance between the two isolation strips (6).

3. The drying equipment for vegetable processing according to claim 2, characterized in that: The bottom of the inner side of the exhaust pipe (8) is fixedly connected to an isolation net (9), the top of the wind box (7) is provided with equidistantly distributed ventilation holes (10), the conveying chain plate (4) is slidably connected to the bottom of the isolation net (9), the top of the isolation net (9) is in contact with the top of the interception bar (5) and the isolation bar (6), and the top of the exhaust pipe (8) is hinged with equidistantly distributed gravity bars (11), and the gravity bars (11) completely cover the top of the exhaust pipe (8).

4. The drying equipment for vegetable processing according to claim 1, characterized in that: A feeding port (12) is provided at one end of the top of the support box (2), a cooling fan (13) is fixedly connected to the bottom of one end of the support box (2) away from the feeding port (12), and air inlets (14) are evenly distributed on one side of the support box (2), the air inlets (14) are communicated with the interior of the wind box (7), and a diversion pipe (15) is fixedly connected to the outside of the support box (2) through the air inlet (14), and the diversion pipe (15) is provided with an output end aligned with each air inlet (14) and an input end, and the input end of the diversion pipe (15) is connected to the hot air supply device.

5. The drying equipment for vegetable processing according to claim 1, characterized in that: The conveying chain plate (4) is composed of chain plate segments (16) hinged to each other at both ends, the chain plate segments (16) are provided with evenly distributed openings inside, both ends of the chain plate segments (16) are fixedly connected to connecting blocks (17), and both ends of the driving roller (3) are fixedly connected to toothed discs.

6. The drying equipment for vegetable processing according to claim 5, characterized in that: An engaging block (18) is fixedly connected to the middle of the outer side of the connecting block (17), and the engaging block (18) is engaged with the outer side of the toothed discs at both ends of the driving roller (3). The isolation bar (6) is fixedly connected to the middle of the chain plate section (16), and its two ends and the connecting block (17) are fixedly connected to each other. The outer side of the end of the connecting block (17) away from the chain plate section (16) is provided with tooth grooves (19) distributed at equal intervals.

7. The drying equipment for vegetable processing according to claim 6, characterized in that: Matching protrusions and grooves are respectively provided at both ends of the connecting block (17), and the connecting blocks (17) are spliced ​​together at the head and tail to form an interception bar (5), and the tooth grooves (19) form a rack at the end of the interception bar (5).

8. The drying equipment for vegetable processing according to claim 1, characterized in that: The bottom of the support box (2) is rotatably connected to a transmission gear (20) and a cleaning roller (21) via a bearing seat. The transmission gear (20) and the cleaning roller (21) are evenly distributed on the bottom of the support box (2). The bottom of the support box (2) is provided with a slot. The transmission gear (20) extends into the interior of the support box (2) through the slot and engages with a rack formed by the tooth groove (19) at the end of the intercepting bar (5).

9. The vegetable processing drying equipment according to claim 8, characterized in that: Both ends of the cleaning roller (21) are fixedly connected to driven gears (22), the driven gears (22) and the outer sides of the transmission gear (20) are meshed with each other, and evenly distributed cleaning bristles are fixedly connected to the outer side of the cleaning roller (21).

10. The vegetable processing drying equipment according to claim 1, characterized in that: Also disclosed is a drying method of the drying equipment, and the specific method steps are as follows: S1: Vegetable raw materials are added to the conveyor chain plate (4) through the feeding port (12), and the vegetable raw materials fall into the independent placement cavity outside the conveyor chain plate (4), and are separated into small batch units by the interception strip (5) and the isolation strip (6); S2: Start the reduction electrical appliance to drive the driving roller (3) to rotate, thereby driving the conveying chain plate (4) to move the vegetable raw materials at an adjustable speed. The speed of the conveying chain plate (4) is controlled by adjusting the speed of the reduction electrical appliance to accurately control the residence time of the vegetables between the bellows (7) and the exhaust pipe (8); S3: The hot air supply device provides hot air, which enters the wind box (7) through the diversion pipe (15) and the air inlet (14), is blown out evenly from the ventilation holes (10) on the top of the wind box (7), and acts on the vegetable raw materials on the conveyor chain plate (4) to evaporate moisture; S4: The moisture generated during the drying process is discharged through the exhaust pipe (8), and the gravity barrier (11) at the top of the exhaust pipe (8) automatically opens under the moisture pressure to allow the moisture to be discharged, and automatically closes when the moisture pressure disappears or the equipment is idle; S5: When the vegetable raw materials are dried and moved to the end of the support box (2) away from the feeding port (12), the cooling fan (13) is started to blow cold air to cool the dried vegetables to prevent the vegetables from overheating; S6: The cooled vegetables are discharged from the end of the conveyor chain plate (4) and collected.

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