CN113670018A

CN113670018A - Box body drying device and drying method used before fruit and vegetable boxing

Info

Publication number: CN113670018A
Application number: CN202110977617.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Ganzhou Ruinong Fruit Industry Development Co ltd
Current assignee: Ganzhou Ruinong Fruit Industry Development Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2021-11-19
Anticipated expiration: 2041-08-24
Also published as: CN113670018B

Abstract

The invention discloses a box body drying device and method used before fruit and vegetable boxing, and relates to the technical field of fruits and vegetables. Including the fruit vegetables case, it has the mount table to inlay on the fruit vegetables incasement wall, fixed mounting has the standing groove on the mount table, be provided with dry mechanism in the fruit vegetables incasement, dry mechanism includes lift, air heater, outlet duct, ventilation pipe and shower nozzle, air heater bottom outer wall inlays admittedly in the output of lift, the outlet duct entry end inlays admittedly in the output of air heater, the ventilation pipe bottom inlays admittedly in the output of outlet duct, the shower nozzle bottom inlays admittedly in the ventilation pipe top. This use box drying device and drying method before fruit vegetables vanning, through carrying out the hot air drying operation from the standing groove bottom, can carry out abundant drying operation to the standing groove bottom, improve holistic drying efficiency, collect the operation and filter the steam that the drying produced simultaneously, can guarantee the new freshness of apple in the apple transportation.

Description

Box body drying device and drying method used before fruit and vegetable boxing

Technical Field

The invention relates to the technical field of fruits and vegetables, in particular to a box body drying device and a drying method used before fruit and vegetable boxing.

Background

Fruits and vegetables are the abbreviation of fruits and vegetables. Refers to edible fruits and vegetables, a category of food as opposed to meat. Apples are one kind of fruit, apples are deciduous trees, usually trees can be as high as 15 meters, but the height of cultivated trees is generally only about 3-5 meters. The growth period of the fruit is short and long, the early-maturing variety is generally 65-87 days, the middle-maturing variety is 90-133 days, and the late-maturing variety is 137-168 days. In general, the apple may have a 15-50 year life after planting. The fruit is oblate spherical, the diameter is more than 2 cm, the tip is always raised, the hollow calyx is sunken, the sepals are preserved forever, and the fruit stem is short and thick. The flowering period is 5 months, and the fruit period is 7-10 months.

Among the prior art, fruit vegetables vanning in-process often need carry out the vanning operation to the apple, all need carry out the drying before the vanning operation, remaining moisture and impurity in the box before preventing remain, lead to rotting in the apple transportation, but because the apple bottom is the arc and has the concavity, and the shape of holding tank bottom is corresponding with the apple to make the apple standing groove can not obtain abundant drying, influence the humidity after the apple vanning, can lead to the apple to rot seriously.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a box body drying device and a drying method used before fruit and vegetable boxing, which solve the problems provided in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a use box drying device before fruit vegetables vanning, includes the fruit vegetables case, it has the mount table to inlay on the fruit vegetables incasement wall, fixed mounting has the standing groove on the mount table, be provided with drying mechanism in the fruit vegetables incasement, drying mechanism includes lift, air heater, outlet duct, ventilation pipe and shower nozzle, air heater bottom outer wall inlays admittedly in the output of lift, the outlet duct entry end inlays admittedly in the output of air heater, the ventilation pipe bottom inlays admittedly in the output of outlet duct, the shower nozzle bottom inlays admittedly in the ventilation pipe top, the shower nozzle top is located standing groove bottom center department.

Preferably, the placing groove is provided with an air guide mechanism, the air guide mechanism comprises an air outlet, a fixing column and an air guide cover, the air outlet is fixedly arranged at the center of the bottom of the placing groove, the fixing column is fixedly arranged between the bottom of the placing groove and the inner wall of the air guide cover, and the air guide cover is semicircular.

Preferably, be provided with water conservancy diversion mechanism on the standing groove, water conservancy diversion mechanism includes honeycomb duct, slope surrounding pipe and connecting pipe, honeycomb duct fixed mounting is between standing groove side and slope surrounding pipe top, connecting pipe one end inlays admittedly on the slope surrounding pipe, the connecting pipe other end inlays admittedly on the collecting box.

Preferably, be provided with the mechanism of keeping out the wind on the standing groove, the mechanism of keeping out the wind includes deep bead and cyclic annular fixed plate, the deep bead is the arc and encircles the form and build in on the standing groove inner wall, cyclic annular fixed plate bottom is built in at the deep bead top.

Preferably, be provided with filtering mechanism in the collecting box, filtering mechanism includes swash plate, filter screen, cleaning blade and the hole of volatilizing, the swash plate slope is inlayed on the collecting box inner wall, the filter screen is inlayed in the swash plate bottom, cleaning blade bottom and filter screen top swing joint, cleaning blade runs through and slidable mounting on the collecting box, through shell fragment elastic connection between cleaning blade outer wall and the collecting box outer wall, the hole of volatilizing is fixed to be seted up in the collecting box top.

Preferably, a power mechanism is arranged inside the ventilation pipe and comprises an impeller, a rotating shaft and blades, the impeller is rotatably installed inside the ventilation pipe, the impeller and the blades are both embedded on the outer wall of the rotating shaft, the rotating shaft is rotatably installed on the ventilation pipe, and the blades are located below the cleaning scraper.

Preferably, be provided with striking mechanism on the cleaning scraper blade, striking mechanism includes connecting plate, No. two connecting plates and arc striking plates, a connecting plate inlays admittedly on cleaning scraper blade, No. two connecting plates inlay admittedly on a connecting plate, arc striking plate bottom inlays admittedly in No. two connecting plate tops, arc striking plate top is located the connecting pipe and keeps away from one side of collecting box.

A method for drying a box body used before fruit and vegetable boxing comprises the following steps:

s1, firstly, starting the lifter to push the hot air blower to move upwards, driving the air outlet pipe and the ventilation pipe to move upwards together by the hot air blower, and driving the spray head to move upwards to the air outlet at the bottom of the placing groove by the ventilation pipe;

s2, starting the hot air blower to start drying operation, conveying hot air generated by the hot air blower into the ventilation pipe through the air outlet pipe, and then transferring the hot air to the spray head through the ventilation pipe so that the spray head blows the hot air to the outside through the air outlet;

s3, the hot air blown out from the air outlet is guided downwards by the air guide cover, so that the hot air can flow downwards along the inner wall of the bottom of the placing groove, and the part of the bottom of the placing groove can be fully dried;

s4, the hot air flowing through the bottom of the placing groove can flow upwards along with inertia, hot air steam is discharged through the convection holes to heat, dehumidify and dry the inside of the drying box, a part of hot air can climb upwards along the inner wall of the placing groove, and the part of hot air can be blocked by the wind shield and enters the inside of the flow guide pipe to perform subsequent collection operation.

(III) advantageous effects

The invention provides a box body drying device and a drying method used before fruit and vegetable boxing. The method has the following beneficial effects:

(1) this use box drying device and drying method before fruit vegetables vanning, through being provided with drying mechanism, make the air heater pass through the lifting of lift and can stretch into the shower nozzle in the air outlet department of standing groove bottom, thereby let the shower nozzle get into hot air drying's operation from the standing groove bottom, the hot-blast operation that can be guided by the wind scooper that blows off of air outlet simultaneously, make hot-blast at first carry out hot air drying to the standing groove bottom, hot-blast upwards climbing along the standing groove comes the whole fruit vegetables case of dehumidification heating afterwards, can fully carry out drying operation to the standing groove, improve the holistic drying efficiency of fruit vegetables case, prevent residual moisture and the injury of impurity to the apple.

(2) This use box drying device and drying method before fruit vegetables vanning, through be provided with water conservancy diversion mechanism on the standing groove, when partial hot-blast ascending along the standing groove inner wall, can be by the deep bead interception and flow in the water conservancy diversion intraduct, these hot-blastly have standing groove bottom moisture and impurity flow in the collecting box inside through slope surrounding pipe and connecting pipe and be collected, the inside filter screen of collecting box can filter moisture, make can effectively collect clean moisture, can provide the new freshness of sufficient vapor assurance apple in the transportation after the apple vanning.

(3) This use box drying device and drying method before fruit vegetables vanning, through be provided with power unit in the ventilation pipe, in-process when hot-blast flow, just can promote the impeller and drive the axis of rotation and rotate, the axis of rotation drives the blade and rotates, the blade starts to rise and can move to the clean scraper blade outside owing to following the ventilation pipe together, make the clean scraper blade of striking that the rotation of blade can be intermittent type nature, clean scraper blade just can produce reciprocal periodic motion, carry out cleaning operation to the filter screen surface, prevent the filter screen jam and guarantee volatilizing of clean moisture.

(4) This fruit vegetables are before vanning with box drying device and drying method, through be provided with striking mechanism outside clean scraper blade, when clean scraper blade was driven by the blade and is carried out reciprocating motion, clean scraper blade can drive a connecting plate and No. two connecting plates and follow the removal for No. two connecting plates can drive arc striking plate and carry out the striking operation to the connecting pipe, thereby impel the connecting pipe to produce the shake, and then can accelerate the downflow of the inside steam of connecting pipe and the flow of impurity, promote collection efficiency.

(5) This fruit vegetables are box drying device and drying method before vanning, through be provided with cyclic annular fixed plate at the deep bead top, the outside impurity of cyclic annular fixed plate and steam can fall into the tank bottom along cyclic annular fixed plate, and can not make impurity and steam by the deep bead separation influence the work of mechanism of leading a current on deep bead top outer wall, and the space that cyclic annular fixed plate formed simultaneously can make things convenient for the staff to take the apple very much, improves staff's work efficiency.

Drawings

FIG. 1 is a schematic view of the overall external three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the interior of the fruit and vegetable box of the present invention;

FIG. 3 is an elevational internal partial sectional view of the holding tank of the present invention;

FIG. 4 is a schematic view of the external three-dimensional structure of the standing groove of the present invention;

FIG. 5 is a schematic view of the exterior three-dimensional structure of the collection box of the present invention;

FIG. 6 is a partial sectional view of the interior of the collection chamber of the present invention.

In the figure: 1. fruit and vegetable boxes; 2. an assembly table; 3. a placement groove; 41. an elevator; 42. a hot air blower; 43. an air outlet pipe; 44. a vent pipe; 45. a spray head; 51. an air outlet; 52. fixing a column; 53. a wind scooper; 61. a wind deflector; 62. an annular fixing plate; 71. a flow guide pipe; 72. an inclined surrounding pipe; 73. a connecting pipe; 8. a collection box; 91. a sloping plate; 92. a filter screen; 93. a cleaning blade; 94. a volatilization hole; 101. an impeller; 102. a rotating shaft; 103. a blade; 111. a first connecting plate; 112. a second connecting plate; 113. an arc-shaped impact plate; 12. and (6) convection holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a box body drying device used before fruit and vegetable boxing comprises a fruit and vegetable box 1, an assembly table 2 is embedded on the inner wall of the fruit and vegetable box 1, a placing groove 3 is fixedly installed on the assembly table 2, a drying mechanism is arranged in the fruit and vegetable box 1 and comprises a lifter 41, a hot air blower 42, an air outlet pipe 43, a ventilation pipe 44 and a spray head 45, the outer wall of the bottom of the hot air blower 42 is embedded and fixed at the output end of the lifter 41, the inlet end of the air outlet pipe 43 is embedded and fixed at the output end of the hot air blower 42, a convection hole 12 is fixedly formed in the fruit and vegetable box 1, the bottom of the ventilation pipe 44 is embedded and fixed at the output end of the air outlet pipe 43, the bottom of the spray head 45 is embedded and fixed at the top of the ventilation pipe 44, the top of the spray head 45 is positioned at the center of the bottom of the placing groove 3, an air guide mechanism is arranged on the placing groove 3 and comprises an air outlet 51, a fixed column 52 and an air guide cover 53, the air outlet 51 is fixedly arranged at the center of the bottom of the placing groove 3, the fixed column 52 is fixedly installed between the inner wall of the placing groove 53, wind scooper 53 sets up to semi-circular, through being provided with drying mechanism, hot-blastly at first carries out hot air drying to standing groove 3 bottom, and hot-blastly make progress along standing groove 3 and dehumidify and heat whole fruit vegetables case 1 afterwards, can fully carry out drying operation to standing groove 3, improves the holistic drying efficiency of fruit vegetables case 1, prevents to remain the injury of moisture and impurity to the apple.

As shown in fig. 3 and 4, in the present invention, a guiding mechanism is disposed on the placing slot 3, the guiding mechanism includes a guiding pipe 71, an inclined surrounding pipe 72 and a connecting pipe 73, the guiding pipe 71 is fixedly mounted between the side surface of the placing slot 3 and the top of the inclined surrounding pipe 72, the inclined surrounding pipe 72 is disposed in an inclined shape, the connecting pipe 73 is also disposed in an inclined shape, the high end of the connecting pipe 73 is embedded in the inclined lower end of the inclined surrounding pipe 72, the low end of the connecting pipe 73 is embedded in the collecting box 8, a wind shielding mechanism is disposed on the placing slot 3, the wind shielding mechanism includes a wind shielding plate 61 and an annular fixing plate 62, the wind shielding plate 61 is in an arc surrounding shape and is embedded in the inner wall of the placing slot 3, the bottom of the annular fixing plate 62 is embedded in the top of the wind shielding plate 61, by providing the guide mechanism on the placing tank 3, the hot air with the moisture and the impurities at the bottom of the placing tank 3 flows into the collecting box 8 through the inclined surrounding pipe 72 and the connecting pipe 73 to be collected.

As shown in fig. 6, in the present invention, a filtering mechanism is disposed in the collecting box 8, the filtering mechanism includes an inclined plate 91, a filtering net 92, a cleaning scraper 93 and a volatilization hole 94, the inclined plate 91 is obliquely embedded and fixed on the inner wall of the collecting box 8, the filtering net 92 is embedded and fixed at the bottom of the inclined plate 91, the bottom of the cleaning scraper 93 is movably connected with the top of the filtering net 92, the cleaning scraper 93 penetrates through and is slidably mounted on the collecting box 8, the outer wall of the cleaning scraper 93 is elastically connected with the outer wall of the collecting box 8 through an elastic sheet, the volatilization hole 94 is fixedly arranged at the top of the collecting box 8, through the filtering mechanism, the filtering net 92 inside the collecting box 8 can filter moisture, so as to effectively collect clean moisture, and can provide sufficient vapor in the transportation process after the apples are packed into boxes to ensure the freshness of the apples.

As shown in fig. 3 and 5, in the present invention, a power mechanism is arranged inside the ventilation pipe 44, the power mechanism includes an impeller 101, a rotating shaft 102 and blades 103, the impeller 101 is rotatably installed inside the ventilation pipe 44, the impeller 101 and the blades 103 are both embedded and fixed on the outer wall of the rotating shaft 102, the rotating shaft 102 is rotatably installed on the ventilation pipe 44, the blades 103 are located below the cleaning scraper 93, an impact mechanism is arranged on the cleaning scraper 93, the impact mechanism includes a first connecting plate 111, a second connecting plate 112 and an arc-shaped impact plate 113, the first connecting plate 111 is embedded and fixed on the cleaning scraper 93, the second connecting plate 112 is embedded and fixed on the first connecting plate 111, the bottom of the arc-shaped impact plate 113 is embedded and fixed on the top of the second connecting plate 112, the top of the arc-shaped impact plate 113 is located on one side of the connecting pipe 73 far away from the collection box 8, and by arranging the power mechanism inside the ventilation pipe 44, the impeller 101 is pushed to drive the rotating shaft 102 to rotate in the process of flowing hot air, the rotation axis 102 drives the blade 103 to rotate, and the blade 103 starts to rise and can move to the outside of the cleaning scraper 93 along with the ventilation pipe 44, so that the blade 103 can intermittently impact the cleaning scraper 93 in rotation, the cleaning scraper 93 can make reciprocating periodic motion, the surface of the filter screen 92 is cleaned, and the filter screen 92 is prevented from being blocked and the volatilization of clean moisture is ensured.

s1, firstly, starting the lifter 41 to push the hot air blower 42 to move upwards, the hot air blower 42 drives the air outlet pipe 43 and the ventilation pipe 44 to move upwards together, and the ventilation pipe 44 drives the spray head 45 to move upwards to the air outlet 51 at the bottom of the placing groove 3;

s2, starting the hot air blower 42 to start drying operation, delivering the hot air generated by the hot air blower 42 into the ventilation pipe 44 through the air outlet pipe 43, and then delivering the hot air to the nozzle 45 through the ventilation pipe 44, so that the nozzle 45 blows the hot air out through the air outlet 51;

s3, the hot air from the air outlet 51 is guided downwards by the air guiding cover 53, so that the hot air can flow downwards along the inner wall of the bottom of the placing groove 3, and the bottom of the placing groove 3 can be dried sufficiently;

s4, the hot air flowing through the bottom of the placing groove 3 will flow upward along with the inertia, and the hot air steam will be discharged through the convection hole 12 to perform the heating, dehumidifying and drying effects inside the drying box, and a part of the hot air will climb upward along the inner wall of the placing groove 3, and this part of the hot air will be blocked by the wind blocking plate 61 and enter the inside of the flow guiding pipe 71, so as to perform the subsequent collecting operation.

When the device is in use, by arranging the diversion mechanism on the placing groove 3, when part of hot air ascends along the inner wall of the placing groove 3, the hot air can be intercepted by the wind shield 61 and flows into the diversion pipe 71, the hot air with the moisture and impurities at the bottom of the placing groove 3 flows into the collecting box 8 through the inclined surrounding pipe 72 and the connecting pipe 73 to be collected, the filtering net 92 in the collecting box 8 can filter the moisture, so that clean moisture can be effectively collected, enough water vapor can be provided in the transportation process after the apples are packed into a box, the freshness of the apples can be ensured, by arranging the annular fixing plate 62 on the top of the wind shield 61, the impurities and the water vapor outside the annular fixing plate 62 can fall into the bottom of the placing groove 3 along the annular fixing plate 62, and the impurities and the water vapor can not be blocked by the wind shield 61 on the outer wall on the top of the wind shield 61 to influence the work of the diversion mechanism, meanwhile, the space formed by the annular fixing plate 62 can be very convenient for workers to take apples, so that the working efficiency of the workers is improved; by arranging the power mechanism in the ventilation pipe 44, in the flowing process of hot air, the impeller 101 is pushed to drive the rotating shaft 102 to rotate, the rotating shaft 102 drives the blades 103 to rotate, the blades 103 rise together with the ventilation pipe 44 and move to the outer side of the cleaning scraper 93, so that the blades 103 can intermittently impact the cleaning scraper 93 in rotation, the cleaning scraper 93 can make reciprocating periodic motion, the surface of the filter screen 92 is cleaned, and the filter screen 92 is prevented from being blocked and clean moisture is ensured to volatilize; through be provided with striking mechanism outside cleaning blade 93, when cleaning blade 93 was driven by blade 103 and is carried out reciprocating motion, cleaning blade 93 can drive a connecting plate 111 and No. two connecting plates 112 and follow the removal, make No. two connecting plates 112 can drive arc striking plate 113 and carry out the striking operation to connecting pipe 73, thereby impel connecting pipe 73 to produce the shake, and then can accelerate the downflow of the inside steam of connecting pipe 73 and the flow of impurity, promote collection efficiency, to sum up, through carrying out hot air drying operation from standing groove 3 bottom, can carry out abundant drying operation to standing groove 3 bottom, improve holistic drying efficiency, the steam to the drying production simultaneously collects the operation and filters, can guarantee the new freshness of apple in the apple transportation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a before fruit vegetables vanning with box drying device, includes fruit vegetables case (1), its characterized in that: inlay on fruit vegetables case (1) inner wall and have mount table (2), fixed mounting has standing groove (3) on mount table (2), be provided with dry mechanism in fruit vegetables case (1), dry mechanism includes lift (41), air heater (42), outlet duct (43), ventilation pipe (44) and shower nozzle (45), air heater (42) bottom outer wall inlays admittedly in the output of lift (41), outlet duct (43) entry end inlays admittedly in the output of air heater (42), ventilation pipe (44) bottom inlays admittedly in the output of outlet duct (43), shower nozzle (45) bottom inlays admittedly in ventilation pipe (44) top, shower nozzle (45) top is located standing groove (3) bottom center department.

2. The box drying device used before fruit and vegetable boxing of claim 1, wherein: the air guide device is characterized in that an air guide mechanism is arranged on the placing groove (3), the air guide mechanism comprises an air outlet (51), a fixing column (52) and an air guide cover (53), the air outlet (51) is fixedly arranged at the center of the bottom of the placing groove (3), the fixing column (52) is fixedly arranged between the bottom of the placing groove (3) and the inner wall of the air guide cover (53), and the air guide cover (53) is semicircular.

3. The box drying device used before fruit and vegetable boxing of claim 1, wherein: be provided with water conservancy diversion mechanism on standing groove (3), water conservancy diversion mechanism includes honeycomb duct (71), slope surrounding pipe (72) and connecting pipe (73), honeycomb duct (71) fixed mounting is between standing groove (3) side and slope surrounding pipe (72) top, connecting pipe (73) one end inlays admittedly on slope surrounding pipe (72), connecting pipe (73) other end inlays admittedly on collecting box (8).

4. The box drying device used before fruit and vegetable boxing of claim 1, wherein: be provided with on standing groove (3) and keep out the wind mechanism, it includes deep bead (61) and cyclic annular fixed plate (62) to keep out the wind mechanism, deep bead (61) are the arc and encircle the form and inlay admittedly on standing groove (3) inner wall, cyclic annular fixed plate (62) bottom inlays admittedly in deep bead (61) top.

5. The box drying device used before fruit and vegetable boxing of claim 3, wherein: be provided with filtering mechanism in collecting box (8), filtering mechanism includes swash plate (91), filter screen (92), cleaning scraper blade (93) and volatilizees hole (94), swash plate (91) slope is inlayed on collecting box (8) inner wall, filter screen (92) are inlayed in swash plate (91) bottom, cleaning scraper blade (93) bottom and filter screen (92) top swing joint, cleaning scraper blade (93) run through and slidable mounting on collecting box (8), through shell fragment elastic connection between cleaning scraper blade (93) outer wall and collecting box (8) outer wall, volatilize hole (94) and fixedly set up in collecting box (8) top.

6. The box drying device used before fruit and vegetable boxing of claim 1, wherein: the cleaning device is characterized in that a power mechanism is arranged in the ventilation pipe (44), the power mechanism comprises an impeller (101), a rotating shaft (102) and blades (103), the impeller (101) is rotatably installed in the ventilation pipe (44), the impeller (101) and the blades (103) are both embedded on the outer wall of the rotating shaft (102), the rotating shaft (102) is rotatably installed on the ventilation pipe (44), and the blades (103) are located below the cleaning scraper (93).

7. The box drying device used before fruit and vegetable boxing of claim 1, wherein: be provided with striking mechanism on cleaning scraper blade (93), striking mechanism includes connecting plate (111), No. two connecting plates (112) and arc striking plate (113), connecting plate (111) inlays admittedly on cleaning scraper blade (93), No. two connecting plates (112) inlay admittedly on connecting plate (111), arc striking plate (113) bottom inlays admittedly in No. two connecting plates (112) top, arc striking plate (113) top is located one side that collecting box (8) were kept away from in connecting pipe (73).

8. A method for drying a box body before fruit and vegetable boxing is characterized by comprising the following steps:

s1, firstly, starting the lifter (41) to push the hot air blower (42) to move upwards, driving the air outlet pipe (43) and the ventilation pipe (44) to move upwards by the hot air blower (42), and driving the spray head (45) to move upwards to the air outlet (51) at the bottom of the placement groove (3) by the ventilation pipe (44);

s2, starting the hot air blower (42) to start drying operation, conveying hot air generated by the hot air blower (42) into the ventilation pipe (44) through the air outlet pipe (43), and then transmitting the hot air to the spray head (45) through the ventilation pipe (44) so that the spray head (45) blows the hot air outwards through the air outlet (51);

s3, the hot air blown out from the air outlet (51) is guided downwards by the air guide cover (53), so that the hot air can flow downwards along the inner wall of the bottom of the placing groove (3), and the bottom of the placing groove (3) can be fully dried;

s4, the hot air flowing through the bottom of the placing groove (3) flows upwards along with inertia, hot air steam is discharged through the convection holes (12) to achieve the effects of heating, dehumidifying and drying the inside of the drying box, a part of hot air ascends along the inner wall of the placing groove (3), and the part of hot air is blocked by the wind shield (61) and enters the inside of the flow guide pipe (71) to perform subsequent collection operation.