CN112815667A

CN112815667A - Seed drying machine with divide material stoving function

Info

Publication number: CN112815667A
Application number: CN202110013580.8A
Authority: CN
Inventors: 闫鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-05-18

Abstract

The invention discloses a seed dryer with a material distributing and drying function, which comprises a discharging device and a processing box, wherein the discharging device is arranged at the top of the processing box, a second discharging hole is formed at the bottom of the processing box, a heating sheet is arranged on the inner wall of the processing box, a fixed disk is fixedly arranged on the inner wall of the processing box, a rotating disk is rotatably arranged outside the fixed disk, a plurality of limiting rods are uniformly fixed on the rotating disk, the free ends of the limiting rods are hinged with the bottom of a supporting rod, driving rods are hinged to the middle parts of the supporting rods, and the driving rods are fixedly connected to a rotating shaft at the. Through setting up intermittent type slewing mechanism and discharging device, the realization is divided the material to the ration of seed and is dried, dries carefully, through setting up gag lever post and rolling disc for the bracing piece rotates the in-process at intermittent type and remains vertical state throughout, prevents that the slope of stoving case from leading to the seed unrestrained, through setting up turn-over table mechanism and rotating gate, makes the stoving case rotate can in time pour out the seed of drying when transport mechanism's input top.

Description

Seed drying machine with divide material stoving function

Technical Field

The invention relates to the field of seed drying, in particular to a seed dryer with a material distributing and drying function.

Background

The seed drying treatment is an important step in the agricultural planting process, a common drying method is a natural air drying method, the specialized seed production batch is large, the natural drying is sometimes influenced by weather conditions, the natural air drying method is not suitable for large-batch seed production, at the moment, a seed drying machine needs to be established to dry seeds by using hot air, but a large amount of seeds are easily accumulated together, all the seeds cannot be dried carefully, partial seeds are not dried enough due to accumulation together, the moisture is too high, and the quality of the seeds is influenced.

Disclosure of Invention

The invention aims to provide a seed dryer with a material distributing and drying function, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a seed dryer with a material distributing and drying function comprises a discharging device and a processing box, wherein the top of the processing box is provided with the discharging device, the bottom of the processing box is provided with a second discharge hole, the inner wall of the processing box is provided with a heating sheet, the inner wall of the processing box is fixedly provided with a fixed disk, the outer side of the fixed disk is rotatably provided with a rotating disk, the rotating disk is uniformly fixed with a plurality of limiting rods, the free ends of the limiting rods are hinged with the bottom of a supporting rod, the middle part of the supporting rod is hinged with a driving rod, the driving rod is fixedly connected to a rotating shaft at the eccentric position of the fixed disk, the rotating shaft is connected with an intermittent rotating mechanism, the top of the supporting rod is hinged with a drying box, the top of the supporting rod is also provided with a platform overturning mechanism for overturning the drying box, the bottom of the side, handle the bottom half and be equipped with the transport mechanism who is used for conveying the seed, transport mechanism's input top is equipped with the inductor, transport mechanism's output corresponds second discharge gate top.

As a further scheme of the invention: discharging device includes feeder hopper, actuating mechanism and screw rod, the fill lid is installed to the feeder hopper opening part, it has the feed inlet to open on the fill lid, still be equipped with actuating mechanism on the fill lid, feeder hopper lower extreme fixedly connected with connecting pipe, connecting pipe lower extreme fixedly connected with discharging pipe, screw rod movable mounting is in the feeder hopper, the screw rod top is passed the fill lid and is connected with actuating mechanism, the screw rod bottom is passed feeder hopper and the laminating of connecting pipe inner wall.

As a further scheme of the invention: the intermittent rotating mechanism comprises a driven wheel, a driving wheel and a first motor, the center of the driving wheel is connected with an output shaft of the first motor, the driving wheel is provided with an integrally formed shifting rod, a plurality of grooves are uniformly formed in the outer edge of the driven wheel, and the center of the driven wheel is fixedly connected with the rotating shaft.

As a further scheme of the invention: the platform overturning mechanism comprises a second cylinder, a top block and a connecting spring, the top block is fixedly installed at the top of the second cylinder, the top block is connected with the bottom of the drying box through the connecting spring, and the second cylinder is fixed in a mounting groove at the top of the supporting rod.

As a further scheme of the invention: the conveying mechanism comprises a conveying belt, a conveying motor and a plurality of belt wheels, the belt wheels are connected through the conveying belt, and one of the belt wheels is connected with an output shaft of the conveying motor.

As a further scheme of the invention: the processing box is internally provided with an exhaust mechanism which comprises an exhaust fan, the exhaust fan is fixedly installed at the top of the inner wall of the processing box through a hollow frame, and an air outlet pipe communicated with the processing box is arranged at the rear of the exhaust fan.

As a further scheme of the invention: the export and the water storage box intercommunication of going out the tuber pipe, water storage box slidable mounting is on handling the spout of incasement wall, it twines on the cooling tube to go out the tuber pipe, the cooling tube is fixed and is being handled the incasement wall.

As a further scheme of the invention: the air outlet pipe is of a spiral tubular structure.

Compared with the prior art, the invention has the beneficial effects that:

1. the intermittent rotating mechanism and the discharging device are arranged, quantitative distribution of seeds is dried, drying is delicate, the limiting rod and the rotating disc are arranged, the supporting rod is always kept in a vertical state in the intermittent rotating process, the drying box is prevented from being scattered due to inclination of the drying box, the drying box can pour all the dried seeds in time when rotating to the position above the input end of the conveying mechanism by arranging the overturning mechanism and the rotating door, and the problems that a large number of seeds are easily accumulated together when a large number of seeds are dried by a traditional drying machine, all the seeds cannot be dried carefully, partial seeds are insufficiently dried due to accumulation together, moisture is too high, and the quality of the seeds is influenced are solved;

2. the uniform discharging is realized by arranging the screw and the connecting pipe, the seed quantity in each drying box is basically consistent, the precision is high, and a large amount of seeds can be placed in the drying boxes at one time by arranging the hopper, so that the frequent operation of personnel is reduced;

3. by arranging the driven wheel and the driving wheel, the driving rod can stir the driven wheel to rotate for a certain angle every time the driving wheel rotates for a circle, so that intermittent rotation is realized;

4. by arranging the platform overturning mechanism, when the inductor detects the drying box, the second cylinder is started to eject the top block out of the mounting groove, the top block pushes the drying box to rotate outwards so as to incline the drying box, when the second cylinder is shortened, the top block pulls the drying box to restore to an initial horizontal state, and the drying box is prevented from being incapable of restoring due to overlarge inclination angle by arranging the connecting spring;

5. the air outlet pipe is arranged to discharge damp hot air in the treatment box, so that the treatment box keeps ventilation, and the quality of seeds is prevented from being influenced by over humidity in the treatment box;

6. will go out the winding of tuber pipe on the cooling tube, can accelerate the cooling from handling the moist hot-air of incasement exhaust for during its liquefaction flows in the water storage box, prevent that the cooling water from dripping at will and spilling, water storage box slidable mounting is in handling the incasement wall, conveniently takes out and emptys the cooling water of collecting, convenient operation.

Drawings

Fig. 1 is a front sectional view of a seed dryer with a separating and drying function.

Fig. 2 is a three-dimensional view of a treatment box in a seed dryer with a material separating and drying function.

Fig. 3 is a schematic structural diagram of a intermittent rotating mechanism in a seed dryer with a material distributing and drying function.

Fig. 4 is an enlarged view of fig. 1A.

Fig. 5 is an enlarged view of fig. 1B.

In the figure: 1-treatment box, 2-feed hopper, 3-driving mechanism, 4-screw, 5-feed inlet, 6-bucket cover, 7-connecting pipe, 8-discharge pipe, 9-intermittent rotating mechanism, 901-driven wheel, 902-driving wheel, 903-first motor, 10-drying box, 1001-first cylinder, 1002-rotating door, 11-rotating disk, 12-fixed disk, 13-supporting rod, 131-second cylinder, 132-top block, 133-connecting spring, 14-limiting rod, 15-driving rod, 16-rotating shaft, 17-water storage box, 18-conveying mechanism, 181-belt wheel, 182-conveying belt, 19-second discharge outlet, 20-air exhaust mechanism, 2001-hollow frame, 2002-exhaust fan, 2003-a second motor, 21-a cooling pipe and 22-an air outlet pipe.

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.

It should be noted that, if there is a directional indication (such as up, down, left, right, front, and back) in the embodiment of the present invention, it is only used to explain the relative position relationship between the components, the motion situation, and the like in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if the description of "first", "second", etc. is referred to in the present invention, it is used for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 5, in the embodiment of the present invention, a seed dryer with a material separating and drying function includes a discharging device and a processing box 1, the top of the processing box 1 is provided with the discharging device, the bottom of the processing box 1 is provided with a second discharging hole 19, the inner wall of the processing box 1 is provided with a heating sheet, the inner wall of the processing box 1 is fixedly provided with a fixed disk 12, the outer side of the fixed disk 12 is rotatably provided with a rotating disk 11, the rotating disk 11 is uniformly fixed with a plurality of limiting rods 14, the free ends of the limiting rods 14 are hinged with the bottom of a supporting rod 13, the middle of the supporting rod 13 is hinged with a driving rod 15, the driving rod 15 is fixedly connected to a rotating shaft 16 at the eccentric position of the fixed disk 12, the rotating shaft 16 is connected with an intermittent rotating mechanism 9, the top of the supporting rod 13 is hinged with a drying box 100, the top of, drying case 100 lateral wall bottom articulates there is swing door 1002, be connected with first cylinder 1001 between swing door 1002 and the drying case 100, it is equipped with the transport mechanism 18 that is used for conveying the seed to handle case 1 bottom, transport mechanism 18's input top is equipped with the inductor, transport mechanism 18's output corresponds second discharge gate 19 top.

In the embodiment, the discharging action of the discharging device is synchronous with the gap rotating action of the intermittent rotating mechanism 9, namely, when the intermittent rotating mechanism 9 rotates once, the discharging device performs a discharging action, when in use, seeds to be dried and distributed are placed in the discharging device at the top of the processing box 1, the heating sheet on the inner wall of the processing box 1 is started to heat the processing box 1 to a specified temperature, the intermittent rotating mechanism 9 is started, the intermittent rotating mechanism 9 drives the driving rod 15 to rotate intermittently through the rotating shaft 16, so as to drive the supporting rod 13 hinged with the driving rod 15 to rotate intermittently, and further drive the drying box 10 to rotate intermittently, because the bottom of the supporting rod 13 is hinged with the limiting rod 14, the limiting rod 14 is fixed at the outer edge of the rotating disc 11, so as to drive the rotating disc 11 to rotate synchronously, the limiting rod 14 and the driving rod 15 are always parallel, so that the supporting rod 13 is, the drying boxes 10 on the supporting rod 13 are kept horizontal and have upward openings, and the rotation angles of the gap rotating mechanisms 9 are the same every time, namely every time the intermittent rotating mechanism 9 rotates once, the next drying box 10 rotates to the position of the previous drying box 10, in the initial state, the first drying box 10 is positioned under the discharging device, the last drying box 10 is positioned above the conveying mechanism 18, the platform overturning mechanism enables the drying boxes to incline, the rotating door 1002 is in an open state, the actions of each drying machine 10 in the embodiment are consistent, only the movement action of the first drying machine 10 is described next, the discharging device is started, seeds fall into the first drying box 10, the drying boxes 10 dry the seeds, when the drying boxes 10 start to rotate, the discharging device stops discharging, when the drying boxes 10 rotate to the position above the input end of the conveying mechanism 18, the sensor detects the drying boxes 10, at the moment, the turning-over table mechanism is started to enable the drying box 10 to incline, the first air cylinder 1001 on the side wall of the drying box 10 extends to drive the rotating door 1002 to rotate outwards to enable the rotating door 1002 to be opened until the port of the rotating door 1002 is contacted with the conveying mechanism 18, the dried seeds fall onto the conveying mechanism 18 from the drying box 10 and are conveyed to the second discharge port 19 through the conveying mechanism 18 to be discharged, the seeds are dried and divided, then the first air cylinder 1001 is shortened to drive the rotating door 1002 to rotate inwards to enable the rotating door 1002 to be closed, the turning-over table mechanism drives the drying box 10 to be restored to a horizontal state, the drying box 10 continues to rotate to start the next round of charging and drying, the intermittent rotating mechanism 9 and the discharging device are arranged to achieve the quantitative divided seed drying, the seeds are dried carefully, the supporting rod 13 is kept in a vertical state all the time in the intermittent rotating process through the arrangement of the limiting rod 14 and the, prevent that stoving case 10 slope from leading to the seed unrestrained, through setting up turn-over table mechanism and revolving door 1002 for stoving case 10 can in time pour the seed of drying in time when rotating the input top of transport mechanism 18 all, leads to a large amount of seeds to pile up together easily when having solved a large amount of seeds of traditional drying-machine, can't be careful carry out drying to all seeds, partial seed leads to drying inadequately because of piling up together, moisture is too high, influences the problem of the quality of seed.

Referring to fig. 1, as a preferred embodiment of the present invention, the discharging device includes a feeding hopper 2, a driving mechanism 3 and a screw rod 4, a hopper cover 6 is installed at an opening of the feeding hopper 2, a feeding port 5 is opened on the hopper cover 6, the driving mechanism 3 is further installed on the hopper cover 6, a connecting pipe 7 is fixedly connected to a lower end of the feeding hopper 2, a discharging pipe 8 is fixedly connected to a lower end of the connecting pipe 7, the screw rod 4 is movably installed in the feeding hopper 2, a top of the screw rod 4 penetrates through the hopper cover 6 to be connected with the driving mechanism 3, and a bottom of the screw rod 4 penetrates through the feeding hopper 2 to be attached to an inner.

In this embodiment, seeds enter the hopper 2 from the feed inlet 5, the driving mechanism 3 is started, the driving mechanism 3 drives the screw rod 4 to rotate at a uniform speed, the seeds move downwards along a spiral groove formed between the spiral blade on the screw rod 4 and the inner wall of the connecting pipe 7 until the screw rod 4 is moved out and falls into the drying box 10 below the connecting pipe 7, when the driving mechanism 3 stops, the screw rod 4 stops rotating, because the bottom of the screw rod 4 is attached to the inner wall of the connecting pipe 7, the spiral blade on the screw rod 4 can seal the outlet of the connecting pipe 7 to stop discharging, when the drying box 10 is selected, and the next drying box 10 rotates below the connecting pipe 7, the driving mechanism 3 is restarted to continue discharging, because the intermittent setting time of the intermittent rotating mechanism 9 is constant, the discharging time of the discharging device is constant each time, and uniform discharging is realized by arranging the screw rod 4 and the connecting pipe, seed weight in every stoving case 10 is unanimous basically, and the precision is high, and sets up hopper 2 and can once only put into a large amount of seeds, reduces personnel's frequent operation.

Referring to fig. 3, as a preferred embodiment of the present invention, the intermittent rotation mechanism 9 includes a driven wheel 901, a driving wheel 902 and a first motor 903, the center of the driving wheel 902 is connected to an output shaft of the first motor 903, the driving wheel 902 is provided with an integrally formed shift lever, the outer edge of the driven wheel 901 is uniformly provided with a plurality of grooves, and the center of the driven wheel 901 is fixedly connected to the rotating shaft 16.

In this embodiment, the first motor 903 is started, the first motor 903 drives the driving wheel 902 to rotate, the deflector rod on the driving wheel 902 enters the groove to stir the driven wheel 901 to rotate for a certain angle and then to be separated from the groove, the driven wheel 901 drives the driving rod 15 to rotate through the rotating shaft 16, after the driving wheel 902 rotates for one circle, the deflector rod enters the next groove on the driven wheel 901 to continuously stir the driven wheel 901 to rotate for a certain angle, and as the outer edge of the driven wheel 901 is uniformly provided with a plurality of grooves, the driven wheel 901 rotates for the same angle at each time, and intermittent rotation is.

Referring to fig. 4 and 5, as a preferred embodiment of the present invention, the tilting mechanism includes a second cylinder 131, a top block 132 and a connecting spring 133, the top block 132 is fixedly installed at the top of the second cylinder 131, the top block 132 is connected with the bottom of the drying box 10 through the connecting spring 133, and the second cylinder 131 is fixed in the installation groove at the top of the supporting rod 13.

In this embodiment, through setting up the turn-over table mechanism, when the inductor detected stoving case 10, second cylinder 131 started, with ejecting mounting groove of kicking block 132, kicking block 132 promoted stoving case 10 and outwards rotated and make stoving case 10 slope, and when second cylinder 131 shortened, kicking block 132 pulling stoving case 10 recovered to initial horizontal state, through setting up connecting spring 133, prevented that stoving case 10 inclination from leading to unable the recovering too big.

Referring to fig. 1, as a preferred embodiment of the present invention, the transmission mechanism 18 includes a transmission belt 182, a transmission motor, and a plurality of pulleys 181, the plurality of pulleys 181 are connected by the transmission belt 182, and one of the pulleys 181 is connected to an output shaft of the transmission motor.

In this embodiment, after the seeds in the drying box 10 are poured onto the conveying mechanism 18, the conveying belt 182 conveys the seeds to the position above the second discharging hole 19, and the seeds are discharged from the second discharging hole 19.

Referring to fig. 1 and fig. 2, as a preferred embodiment of the present invention, an exhaust mechanism 20 is further disposed in the processing box 1, the exhaust mechanism 20 includes an exhaust fan 2002, the exhaust fan 2002 is fixedly mounted on the top of the inner wall of the processing box 1 through a hollow frame 2001, and a communicated air outlet pipe 22 is disposed on the processing box 1 corresponding to the rear of the exhaust fan 2002.

In this embodiment, because moisture can evaporate out when stoving case 10 carries out hot drying to the seed and lead to the stoving incasement 10 in moist, consequently through setting up out tuber pipe 22, will handle the interior moist hot-air outgoing of case 1 for handle case 1 and keep ventilating, prevent to handle the quality that the interior too moist influence seed of case 1.

Referring to fig. 1 and 2, as a preferred embodiment of the present invention, the outlet of the air outlet pipe 22 is communicated with the water storage box 17, the water storage box 17 is slidably mounted on a sliding groove on the outer wall of the treatment tank 1, the air outlet pipe 22 is wound on the cooling pipe 21, and the cooling pipe 21 is fixed on the outer wall of the treatment tank 1.

In this embodiment, wind out tuber pipe 22 winding on cooling tube 21, can accelerate the cooling from handling the moist hot-air of case 1 internal exhaust for during its liquefaction flows into water storage box 17, prevent that the cooling water from dripping at will and spilling, water storage box 17 slidable mounting is in handling case 1 outer wall, conveniently takes out and emptys the cooling water of collecting, convenient operation.

Referring to fig. 1 and 2, as a preferred embodiment of the present invention, the air outlet pipe 22 is a spiral pipe structure.

In this embodiment, the cooling time of the hot humid air can be prolonged by providing the air outlet duct 22 with a spiral tubular structure.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The seed dryer with the material distributing and drying functions comprises a discharging device and a processing box (1) and is characterized in that the discharging device is arranged at the top of the processing box (1), a second discharge hole (19) is formed in the bottom of the processing box (1), a heating sheet is arranged on the inner wall of the processing box (1), a fixed disc (12) is fixedly mounted on the inner wall of the processing box (1), a rotating disc (11) is rotatably mounted outside the fixed disc (12), a plurality of limiting rods (14) are uniformly fixed on the rotating disc (11), the free ends of the limiting rods (14) are hinged to the bottom of a supporting rod (13), driving rods (15) are hinged to the middle of the supporting rod (13), the driving rods (15) are fixedly connected to a rotating shaft (16) at the eccentric position of the fixed disc (12), the rotating shaft (16) is connected with an intermittent rotating mechanism (9), a drying box (100) is hinged to the top of the supporting rod (13), bracing piece (13) top still is equipped with the turn-over platform mechanism that is used for turning stoving case (100), stoving case (100) lateral wall bottom articulates there is revolving door (1002), be connected with first cylinder (1001) between revolving door (1002) and stoving case (100), it is equipped with transport mechanism (18) that are used for conveying the seed to handle case (1) bottom, the input top of transport mechanism (18) is equipped with the inductor, the output of transport mechanism (18) corresponds second discharge gate (19) top.

2. The seed dryer with the functions of material distribution and drying according to claim 1, wherein the discharging device comprises a feeding hopper (2), a driving mechanism (3) and a screw rod (4), a hopper cover (6) is installed at an opening of the feeding hopper (2), a feeding port (5) is formed in the hopper cover (6), the driving mechanism (3) is further arranged on the hopper cover (6), a connecting pipe (7) is fixedly connected to the lower end of the feeding hopper (2), a discharging pipe (8) is fixedly connected to the lower end of the connecting pipe (7), the screw rod (4) is movably installed in the feeding hopper (2), the top of the screw rod (4) penetrates through the hopper cover (6) to be connected with the driving mechanism (3), and the bottom of the screw rod (4) penetrates through the feeding hopper (2) to be attached to the inner wall of the connecting pipe (7).

3. The seed dryer with the function of distributing and drying the seeds as claimed in claim 1, wherein the intermittent rotating mechanism (9) comprises a driven wheel (901), a driving wheel (902) and a first motor (903), the center of the driving wheel (902) is connected with an output shaft of the first motor (903), the driving wheel (902) is provided with an integrally formed shift lever, a plurality of grooves are uniformly formed on the outer edge of the driven wheel (901), and the center of the driven wheel (901) is fixedly connected with the rotating shaft (16).

4. The seed dryer with the separated material drying function according to claim 1, wherein the overturning platform mechanism comprises a second air cylinder (131), a top block (132) and a connecting spring (133), the top block (132) is fixedly installed at the top of the second air cylinder (131), the top block (132) is connected with the bottom of the drying box (10) through the connecting spring (133), and the second air cylinder (131) is fixed in a mounting groove at the top of the supporting rod (13).

5. The seed dryer with separated material drying function according to claim 1, characterized in that the conveying mechanism (18) comprises a conveying belt (182), a conveying motor and a plurality of belt wheels (181), the plurality of belt wheels (181) are connected through the conveying belt (182), and one of the belt wheels (181) is connected with an output shaft of the conveying motor.

6. The seed dryer with the function of distributing and drying the seeds as claimed in claim 1, wherein an exhaust mechanism (20) is further arranged in the treatment box (1), the exhaust mechanism (20) comprises an exhaust fan (2002), the exhaust fan (2002) is fixedly installed on the top of the inner wall of the treatment box (1) through a hollow frame (2001), and a communicated air outlet pipe (22) is arranged on the treatment box (1) and corresponds to the rear of the exhaust fan (2002).

7. The seed dryer with the function of distributing and drying the seeds as claimed in claim 6, wherein the outlet of the air outlet pipe (22) is communicated with a water storage box (17), the water storage box (17) is slidably mounted on a sliding groove on the outer wall of the treatment box (1), the air outlet pipe (22) is wound on a cooling pipe (21), and the cooling pipe (21) is fixed on the outer wall of the treatment box (1).

8. The seed dryer with the function of separating and drying seeds as claimed in claim 7, wherein said air outlet pipe (22) is of a spiral tubular structure.