阅读说明：本技术 一种烘干打瓜籽设备 (Melon seed equipment is beaten in stoving ) 是由 聂永林 于 2020-05-22 设计创作，主要内容包括：一种由拖拉机牵引行走的可移动设备,在农业生产中能对刚收获下来的打瓜籽即时装载到设备内就地开始烘干并可拉运农作物的一种烘干打瓜籽设备,当把设备上的用于烘干打瓜籽时用到的单筒烘干装置挽装成多筒烘干装置时就可以多三倍受热时间和路径地对玉米、食葵、小麦等农作物进行烘干作业。本发明的构造是在一个车架大梁上托着一个仓储箱在上面安放了一个烘干装置,要点在于用隔板分成若干个仓的仓储箱里的被烘干物被链式送粮装置送入到用电能转挽成热能而有一定温度的烘干装置内径过高温烘烤被烘干的过程。另外在车架大梁前段仓储箱斜面下的空位置安放了一台发电机组可以为本设备提供电力支持,且并例安放的一台真空吸粮机可以把谷物等收纳入设备内。(A movable device driven by a tractor to travel can instantly load harvested melon seeds into the device to start drying on the spot and pull crops in agricultural production, and when a single-cylinder drying device used for drying the melon seeds on the device is rolled into a multi-cylinder drying device, the drying operation can be carried out on the crops such as corn, sunflower and wheat for three times of heating time and path. The main point lies in that the dried material in the storage box divided into several bins by partition plates is sent by chain type grain-conveying device to the drying device which can convert into heat energy by using electric energy and has a certain temperature, and the inner diameter of said drying device is over-high-temp. In addition, a generator set is arranged at an empty position below the inclined plane of the front-section storage box of the frame girder, so that electric power support can be provided for the equipment, and a vacuum grain elevator arranged in the equipment can store grains and the like into the equipment.)

1. The utility model provides a melon seed equipment is beaten in stoving which characterized in that: a storage box is arranged on a frame girder of which the lower part is provided with a tire traveling system, a cylindrical drying device is arranged at the top of the storage box, the interior of the storage box is divided into A, B, C bins by two partition plates, wherein the top of the C bin at the most back, namely the grain inlet position of the drying device, is provided with a chain type grain conveying device and a grain feeding device, the top of the other two bins, namely the grain outlet position of the drying device, is provided with a receiving hopper device, and in addition, a generating set and a vacuum grain suction machine are arranged at the empty position below the inclined plane of the storage box at the front section of the frame girder.

2. The apparatus for baking melon seeds as claimed in claim 1, wherein: the cylindrical single-drum drying device installed on the top of the storage box and the multi-drum drying device which can be installed with the storage box in a rolling way are embedded and sleeved with a supporting wheel rail which is seated on a supporting wheel supported by a supporting wheel frame, a driven gear is embedded and sleeved with a supporting frame, and is supported by a driving gear driven by a motor, so that the drying device can rotate, a group of three wire connecting grooves are embedded, and a wire connecting pile is clamped in each wire connecting groove.

3. The apparatus for baking melon seeds as claimed in claim 1, wherein: the single-cylinder drying device arranged on the top of the storage box and the wiring slots on the multi-cylinder drying device which can be installed in a rolling way are connected with electric heating elements to the inside of the device.

4. The apparatus for baking melon seeds as claimed in claim 1, wherein: the multi-drum drying device is formed by sleeving three cylindrical drums with different specifications together, a grain outlet is formed in each of the middle drum and the small drum, the two single-drum drying devices and the multi-drum drying device are provided with Archimedes spirals on the inner walls of the drums, and the Archimedes reverse spiral is arranged on the inner wall of the middle drum of the multi-drum drying device.

5. The apparatus for baking melon seeds as claimed in claim 1, wherein: the front part of the storage box is an inclined plane which is integrally like a garbage can placed in a residential area, the storage box is divided into A, B, C bins by two partition plates, bin doors are arranged at the middle bottom positions of the back of each bin, and the volume of the bin B is about twice of that of the bin A.

6. The apparatus for baking melon seeds as claimed in claim 1, wherein: a, B two bins in the bin storage box are respectively and equally divided into two small bins by a partition plate, the single volume of the two small bins divided by the B bin is twice of that of the two small bins divided by the A bin, and a bin door is respectively arranged at the middle bottom position of the back of each small bin.

7. The apparatus for baking melon seeds as claimed in claim 1, wherein: the grain feeding device bracket in the chain grain feeding device arranged at the top of the C bin supports a rotating wheel driven by a motor, the rotating wheel is sleeved with a chain, a plurality of spoons are arranged on the chain at proper distances, and the grain feeding device at the top is a feeding device with a groove-shaped tray sample arranged on a feeding device bracket.

8. The apparatus for baking melon seeds as claimed in claim 1, wherein: the upper part of the receiving device is in an open-mouth shape and faces the lower part of the grain outlet of the drying device, and the opening of the grain outlet swinging downwards at the lower part of the receiving device is movably connected with the middle part of the receiving device and can swing at various angles.

9. The apparatus for baking melon seeds as claimed in claim 1, wherein: a distribution box switch device is arranged on the outer wall of the storage box, and an external power grid electric energy access port is additionally arranged on the distribution box switch device.

10. The apparatus for baking melon seeds as claimed in claim 1, wherein: a self-contained lifting device and an electric hair drier can be added to the device.

Technical Field

The invention belongs to agricultural drying machinery. The drying machine is a device for drying and processing harvested crops on site, can be used for instantly loading and drying melon seeds and gourd seeds which are harvested from a farmland in situ and can be pulled and transported, and can also be used for drying corn, sunflower, wheat, rapeseed and other grains which are just harvested and stacked on a sunning ground.

Background

At present, melon seeds and gourd seeds in the area are harvested by a seed picking machine and then are immediately loaded on a pulling and conveying machine to be conveyed to an airing field for airing, the seeds can be thoroughly aired only after being aired by blowing wind for two days in sunny high-temperature weather in the shortest time, and finally the seeds can be collected, stacked and stacked. The agricultural operation has high requirements on the airing field, the area is large, the surface has no sundries or water accumulation, the drying field needs to be flat and hard, and the drying field can be dried in the fastest time only by spreading the drying field to be placed in a thin and almost one-particle ground. In order to save cost, the method generally adopts a drying field which is required to be compacted and is used for building a large area of civil engineering on site, and has the defect that wet melon seeds and the like are stuck with soil and sundries when being spread on the field, and the soil is not good in quality and cannot be sold well until being dried. If the melon seeds are subjected to overcast and rainy weather, the airing time is prolonged, the melon seeds are not drenched by rain and collected, and the melon seeds are spread and aired again when the weather is fine, so that the investment of manpower and material resources is increased, and the melon seeds which are folded once again are not sold even if more soil and sundries are adhered. Most feared that the melon seeds are subjected to raining for a plurality of days continuously, and even if the melon seeds are stacked urgently, the wet melon seeds which are just fallen on the field cannot be collected, and the melon seeds can be seen only by eyes and soaked in rainwater, so that the melon seeds are mildewed and deteriorated seriously.

And the moisture content of crops such as corn, edible sunflower, oil sunflower, rapeseed, wheat and the like is over-standard when the crops are harvested after being matured, and the crops cannot be directly warehoused and stored. The moisture of crops except the corn and the mallow is generally low, and the moisture can reach the standard even if the crops are thickly spread on a sunning ground and are slightly aired for a few days. The moisture of the corn and the edible sunflower is higher, and the corn and the edible sunflower can be dried after being spread to be thin and dried for nearly one week. Of course, the crops are afraid of being exposed to the rainy days during the airing period, and particularly, the eating sunflower feels the strange taste of being full of mouth when eating the sunflower by a little rain or being difficult to spread too thick to air for too long time. The corn is large in planting area and large in total amount, a plurality of drying plants for processing supplied materials are built successively in the years, and the current situation is that some plants only process the crop in a rotating mode and are unable to take time, the crops except the corn are small in amount and the impurities of the corn and the like which are left in the cleaning equipment and need to be cleaned manually are cleaned so as to be prevented from being mixed with another crop which needs to be dried, such as sunflower and the like, so the processing plants generally cannot receive the supplied materials processing production of the crops except the corn due to the consideration of the drying processing cost.

Disclosure of Invention

The invention provides a drying device aiming at the problems in life and production. The seed picking machine can load the picked melon seeds, gourd seeds and pumpkin seeds into the equipment at any time to start drying operation on the spot, and the seed picking machine can also load the picked melon seeds into the equipment at the time of receiving work to leave the farmland along with the seed picking machine, so that the drying operation of a night shift can be continued without urgent unloading in the airing field, and the melon seeds can be dried almost in the next morning. The aim of drying is to dry the moisture on the surface of the melon seeds and to avoid baking the melon seeds, and the temperature in the equipment is not high enough to dry the melon seeds or even to dry some moisture, so the unloaded melon seeds are spread on a drying yard and then dried for about half a day before being collected and stacked. And in addition, people pay attention to weather forecast every day when carrying out agricultural operation, and people cautiously dare not to go to farmland to harvest melon seeds on some days when hearing that rain falls in the day. However, the drying equipment does not need to worry about that the equipment is too much to be pulled to the rain shelter for rain during the work reception, the drying temperature of the equipment is only required to be reduced to a certain extent even if the equipment is too rainy to make the melon in the ground, and the phenomenon of mildew cannot occur even if the larger rain melon seeds are outside in a dry small environment. The drying equipment can greatly shorten the time for airing crops, and is not afraid of mildewing and deterioration even in rainy days for a plurality of days, so that the purposes of guaranteeing the harvest and the production and reducing the labor intensity are provided.

The purpose of the invention is realized as follows: the equipment is a mobile device which is towed by a tractor, and is approximately characterized in that a storage box is supported on a frame girder, and a drying device is arranged on the storage box. The mobility entails a frame girder, a rear wheel and trailing axle and brake system, a front wheel and front axle and steering system, and a traction frame device, which are similar to the current trailer and will not be described in detail. The garbage can is characterized in that one side of the garbage can, which is placed near a residential point, of the storage box is in an inclined plane shape, the storage box is divided into A, B, C three bins by two partition plates in the middle, the inclined plane is located on the frame girder towards the front seat, a hydraulic oil cylinder is connected with the frame girder and the storage box in the middle for facilitating unloading, and grains and the like in the storage box can be easily unloaded when the oil cylinder is jacked up. A generator set and a vacuum grain elevator are arranged at the empty position below the inclined plane of the front part storage box of the frame girder. A light crane is suggested to be adopted for assisting in drying the watermelon seeds and the gourd seeds, the wet watermelon seeds which are picked by the watermelon seed picking machine are firstly accommodated in a receiving bucket which is arranged on the watermelon seed picking machine, the receiving bucket can be lifted by the crane to be poured into a storage box A bin of drying equipment after the receiving bucket is filled with the watermelon seeds, the upper part of a partition plate between the storage box A bin and the storage box B bin is in an inclined shape towards the storage box B bin, a generator set can be started to generate electricity to enable a drying device arranged at the top of the storage box to operate after the drying device reaches a set temperature, a bin door of the storage box A is opened to enable the watermelon seeds to automatically slide into the storage box C bin, and a chain type grain conveying device is arranged in the storage box C bin to convey the watermelon seeds in the bottom of the storage box into the drying device at the top to start drying operation. The drying device is a long cylindrical device, three-phase electric heating is switched on, the rotating function of the drying device is started, the watermelon seeds are fed into the barrel from one end, overturned to the other end and slowly moved, and are baked and dried at high temperature and fed into the bin B from the other end in the barrel. The drying equipment is pulled by a tractor to move in the farmland along with the seed watermelon machine and uninterruptedly dries the seed watermelon just poured into the equipment, and when the next receiving bucket of the seed watermelon machine is filled with the seed watermelon, the seed watermelon is lifted by a crane and poured into a storehouse A of the drying equipment for drying in time. Therefore, the drying equipment can carry out pulling and conveying work of melon seeds and can also dry the melon seeds. Because the lower suggestive operation that just can connect the place of external power supply to continue a night shift of temperature just can be looked for at night and the melon seeds are dried more thoroughly, close A storehouse door this moment and open suitable aperture of B storehouse door again and let the melon seeds fall into C storehouse naturally, send grain device into drying device grain inlet by the chain, toast through high temperature and fall into A storehouse through drying device grain outlet again, same method continues to fall into C storehouse from A storehouse door again, so relapse to toast the circulation in drying equipment. Before the machine leaves the factory in the morning, the C bin door is opened, the oil cylinder is lifted, the front part of the bin storage box is lifted, and the dried melon seeds are unloaded to a sunning ground, so that the machine can be driven into the farmland to start working in a new day.

The following is a supplementary description of the dependent techniques of the present invention: the drying device on the drying equipment can also be made into a device which is formed by sleeving three cylindrical drums with different specifications together, when grains are sent into the multi-drum drying device, the grains are slowly disturbed to the other end of the small drum, because the grains blocked by the small drum are slowly disturbed to the other end of the small drum and fall into the cavity of the middle drum from the grain outlet of the middle drum, the grains at the moment are slowly disturbed to the other end of the small drum and fall into the cavity of the large drum from the grain outlet of the middle drum, and the grains can pass through the path three times more than the conventional single drum device in the drying device by one cycle in a reciprocating manner. After the multi-cylinder drying device is replaced on the drying equipment, the crops such as corn, wheat and the like except the melon seeds and the gourd seeds can be dried more efficiently. It is necessary to provide the original reason for drying the seeds with a single-drum drying device, because the shell of the newly harvested seeds is wet, when the seeds are sent into the pre-heated drying device, the sugar-containing and sticky substances on the shell meet the high-heat drying device, so that part of the seeds can be adhered to the inner wall of the device immediately, therefore, the seeds adhered to the chamber are occasionally cleaned by tools in an early stage of the seed drying process in a manual auxiliary mode, and the possibility of the seeds being adhered to the chamber due to the carelessness of the multi-drum drying device can block the inner cavities of the middle drum and the large drum. When the equipment is used for drying corn, wheat and other grains, the grain sucker is started to convey the crops to be dried into the storage tank for drying. The drying equipment can also carry out warehousing operation on crops, and more praise that the vacuum grain suction machine can be started while the drying equipment walks to collect thin and thin grains which are spread on a sunning ground and dried in the suction equipment, and the grain is conveyed to the top of a stack by the vacuum grain suction machine which is started after a storage tank is filled with the grains which are dragged by a tractor to be conveyed to a storehouse. The equipment can also be used for drying the medicinal materials of peanuts and fruits with particle shapes. The two storage bins A, B of the drying apparatus can be equally divided into two small bins, the bin A is divided into the bin A1 and the bin A2, the bin B is divided into the bin B1 and the bin B2, in order to dry the crops more effectively, the crops in the bin A1 are dried and disturbed to be stored in the bin A2 and then are returned to the bin A1 from the bin A2, the same operation mode is that 4 bins A1 can fill the bin B1 and the bin B2, because the shaping of the bin B1 and the bin B2 ensures that the grains can not fall into the bin C as the bins A1 and A2 by themselves when the bin door is opened, of course, the remaining grains which can not fall naturally in the bottom of the bin B1 can be cleaned into the bin C when the bin B2 is removed from the bin A2 and the bin A2, and the grains can be returned to the bin B2 as the same drying method as the drying method of drying and returning to the bin A2, the crop can be dried better by the reciprocating circulation. In addition, an auxiliary device for lifting the receiving hopper, namely a self-contained lifting device, can be additionally arranged on the drying equipment, so that a light crane is not required to be additionally arranged for assisting. An electric hair drier can be additionally arranged near the grain outlet of the drying device of the equipment, so that sundries and water vapor can be blown away. In addition, the self-generating function of the device can also be realized by the transmission of the transmission shaft to the tractor to provide power for the generator.

The invention has the advantages that the melon seeds and gourd seeds processed by the drying and seed threshing equipment can be put in storage even if being unloaded thickly on a drying yard and aired a little, the situation that the melon seeds are stuck with soil and sundries after being aired on the soil yard before can not occur, the situation that the upwarp phenomenon of the melon seed shell coat aired on the cement hardening yard before occurs due to uneven heating or the melon seed flapboard is mildewed and mildewed in rainy days can not occur, and the melon seeds with good selling quality can be sold at a good price. The harvested sunflower seeds are evenly dried in time, and the bad smell of the sunflower seeds in the mouth is avoided when the sunflower seeds are cracked into pieces like the sunflower seeds which are occasionally eaten and have a little mildewed. This equipment structure is simple, low in cost, easily caters to individual planting household's purchasing ability, just takes partial planting maize household, should pay for this of the maize of drying plant own planting of this equipment and throttle the processing expense in the next two years all probably very easily surpass the expense of purchasing this equipment. Thereby saving manpower and material resources and increasing the income of planting individuals.

Drawings

The invention will be further explained with reference to the drawings.

Fig. 1 is a schematic diagram of the structure and principle of the drying and seed-threshing device.

FIG. 2 is a schematic diagram of the shape of the bin A and the bin B of the bin storage box in FIG. 1 and the position of each bin gate measured in an equal manner and partially opened.

FIG. 3 is a simplified schematic diagram of the improved and optimized shape of the storage tank of FIG. 2 and a schematic diagram of a partially open drawing with the doors positioned at equal positions.

Fig. 4 is a schematic diagram of a partial open drawing with a right-side view of the structure of the C bin of the bin storage tank in fig. 1, a chain type grain conveying device and a grain feeding device.

Fig. 5 is a schematic view of the front isometric view of the drum drying device in fig. 1.

Fig. 6 is a schematic diagram of a partial sectional view of the inclined equiaxial side of the multi-drum drying device of the replacement part of the drying equipment.

In the figure, 1, a frame girder, 2, a bin storage box, 3, a single-barrel drying device, 4, a rear wheel, a towing bridge and a braking system, 5, a front wheel, a front axle and a steering system, 6, a towing frame device, 7, a generator set, 8, a vacuum grain suction machine, 9, an A clapboard, 10, a B clapboard, 11, an A cabin, 12, a B cabin, 13, a C cabin, 14, an A cabin door, 15, a B cabin door, 16, a C clapboard, 17, a D clapboard, 18, an A1 cabin, 19, an A2 cabin, 20, a B1 cabin, 21, a B2 cabin, 22, an A1 cabin door, 23, an A2 cabin door, 24, a B1 cabin door, 25, a B2 cabin door, 26, a chain grain feeding device, 27, a grain feeding device, 28, a feeding device bracket, 29, a rotating wheel, 30, a chain, 31, 32, a bin device bracket, 33, a C cabin door, a rail feeding device, a rail, a driven wire connecting groove, a driven wire connecting rod, a driven wire connecting groove, 36, a driven wire connecting groove, 40. the grain discharging device comprises a middle barrel, 41 parts of a small barrel, 42 parts of a middle barrel cavity, 43 parts of a middle barrel grain discharging opening, 44 parts of a grain discharging opening, 45 parts of a small barrel grain discharging opening and 46 parts of a large barrel cavity.

Detailed Description

In fig. 1, a storage tank 2 is mounted on a frame member 1, and a single drum drying device 3 is installed on the top of the storage tank 2.A hydraulic oil cylinder is arranged at the contact part of the lower front part of the storage tank 2 and the frame girder 1, the hydraulic oil cylinder is hidden by the shielding of the storage tank 2, so that the hydraulic oil cylinder is not shown in the figure, when the hydraulic oil cylinder is used for supplying oil, the front part of the storage tank 2 is tilted on the frame girder 1, and then the dried objects in the storage tank 2 can be easily unloaded. In the lower rear part of the frame girder 1, which has rear wheels and a trailing axle and a brake system 4, and in the front part, which has front wheels and a front axle and a steering system 5, the traction frame device 6 should be connected to the front wheels and the front axle and the steering system 5 as a whole, which is not well shown in fig. 1 due to the drawing capability, and which is also different from the current trailer in the same or smaller way, and will not be described in detail here. If the drying equipment is required to be simplified in manufacturing cost, only one group of load-bearing walking tire devices can be fixedly installed at a proper position below the frame girder 1, and the traction frame device 6 is directly welded and fixed with the frame girder 1 as shown in the figure 1, so that the defect that the stability of the equipment is poor in operation is overcome.

In fig. 1, the front part of the storage box 2 arranged on the frame girder 1 is in a shape of an inclined plane like a garbage can as a whole, a generator set 7 and a vacuum grain suction machine 8 are arranged at the empty position below the inclined plane of the storage box 2 in the front part of the frame girder 1, only a cube is abstractly drawn at each machine arrangement position in fig. 1, the generator set 7 can be started to provide electric support for equipment, and when the vacuum grain suction machine 8 is started, grains and the like in the equipment can be fed into the equipment and can also be fed into the top of warehouse stacking. In fig. 1, the storage tank 2 is divided into three chambers of a chamber 11, a chamber 12 and a chamber 13 by a partition plate A9 and a partition plate B10, and the large volume of the chamber 12 is twice of that of the chamber 11. Fig. 2 shows that an a bin door 14 and a B bin door 15 are respectively arranged at the middle positions of the bottoms of the a bin 11 and the B bin 12 in fig. 1. In order to make the drying equipment dry crops more favorably, the cabin A and the cabin B of the storage box can be respectively divided into two small cabins by partition plates in an improved and upgraded model, so that the processed objects can be processed for the same times without dead angles, the once processed crops can be processed again and dried simultaneously, the cabin A11 and the cabin B12 in the figure 2 are respectively divided into an A1 cabin 18, an A2 cabin 19, a1 cabin 20 and a B2 cabin 21 by a C partition plate 16 and a D partition plate 17 in the figure 3, the A1 cabin 18 and the A2 cabin 19 are respectively and equally divided into an A1 cabin door 22 and an A2 cabin door 23, and the B1 cabin 20 and the B2 cabin 21 respectively have a B1 cabin door 24 and a B2 cabin door 25. Fig. 4 is a structural illustration of the C-silo 13 in fig. 1 and the chain grain conveying device 26 and the grain feeding device 27 arranged thereon, and the structures of the chain grain conveying device and the grain feeding device in fig. 4 are as follows: the grain conveying device bracket 28 supports a rotating wheel 29 driven by a motor, a chain 30 is sleeved on the rotating wheel 29, and a plurality of spoons 31 are arranged on the chain 30 at proper distances; the grain feeding device has a simple structure, and only a trough-shaped tray-like feeder 33 which can slide down immediately when grains fall on the trough-shaped tray is arranged on a feeding device bracket 32. When the grains are to be dried, any bin door containing the dried substances is opened firstly, the grains fall into the bottom of the C bin 13 automatically, at the moment, the rotating wheel 29 drives the chain 30 to move, the spoon 31 arranged on the chain 30 is loaded with the grains at the bottom of the C bin 13, the grains are conveyed to the highest position and fall onto the feeder 33, the grains can automatically slide into the drying device, and the dried grains can be discharged by opening the C bin door 34 after the drying operation is finished.

In fig. 1, the chain type grain feeding device 26 and the grain feeding device 27 feed the dried material into the single-cylinder drying device 3 for drying, when the dried grain comes out from the grain outlet of the single-cylinder drying device 3, the dried grain falls into a receiving device, the lower swing grain outlet of the lower part of the receiving device can swing in a rotating way, that is, the dried grain falls into the bin B12 when the lower swing grain outlet swings to the upper part of the bin B12, the dried grain falls into the bin a 11 when the lower swing grain outlet swings to the upper part of the bin a 11, the receiving device is not drawn in fig. 1 due to lack of drawing capability and short writing time, and the receiving device also has a power transmission line coming out of the generator set 7 and a power transmission line going to the single-cylinder drying device 3; a distribution box switch device which is arranged at a proper position on the outer wall of the storage box 2 and used for distributing power for each motor and each drying device; the drying equipment can conveniently climb up a ladder of the drying equipment; a pipe arranged on the vacuum grain elevator 8; a supporting frame, a supporting wheel, a driven gear, a driving gear and the like on the single-drum drying device 3; the attachment of the fixing frame device for preventing the drying device from falling down due to bumping during the traveling and working of the drying apparatus, etc. cannot be described in detail.

Fig. 5 shows the single drum drying device of fig. 1, the supporting wheel track 35 is seated on the supporting wheel supported by the supporting frame to make the drying device hidden and fixed on the drying apparatus to avoid the front and back movement, the driven gear 36 inserted in the drying device is shifted by the driving gear driven by a motor to rotate, thus the drying device rotates, the drying device is also provided with a power connection wire slot 37, the power connection wire slot 37 is clamped and sleeved with a power connection wire pile 38, the power connection wire pile 38 and the power transmission wire connected with the power connection wire pile do not run along with the rotation of the drying device when the drying device rotates, only the power connection wire slot 37 slides and is kept in the same direction to continuously supply power to the drying device, when the drying device is powered, the electric heating element inside the device connected with the power connection wire slot 37 converts the electric energy into the heat energy to heat the inside of the drying device. FIG. 6 is a replacement part used on the drying equipment for drying corn, mallow and the like, which is a multi-drum drying device manufactured by sleeving three cylindrical drums with different specifications together, a large drum 39 and a single drum drying device are correspondingly provided with a supporting wheel rail, a driven gear, a wire connecting groove, a wire connecting pile and the like, a corresponding description is not drawn in FIG. 6, a corresponding description is not provided, both ends of a middle drum cavity 42 between a middle drum 40 and a small drum 41 are closed, a small drum 41 is purposely provided with a cut-off sectional drawing from a grain inlet to a roughly middle position in the drawing in order to expose the existence of a middle drum grain outlet 43 on the middle drum 40, the small drum 41 is also closed at a grain outlet 44 side, the small drum 41 is slowly disturbed to the grain outlet side due to the rotation of the drying device after the corn is fed into the small drum grain inlet, and the closed corn falls into the middle drum cavity 42 from the grain outlet 45, the corn in the middle cylinder cavity 42 is slowly disturbed to the grain inlet side and falls into the big cylinder cavity 46 from the middle cylinder grain outlet 43, and finally the dried corn comes out from the grain outlet 44. Of course, the corn is disturbed in the multi-drum drying device by pushing the archimedes spiral on the inner wall of each drum, the inner walls of the small drum 41 and the large drum 39 are positive spiral, and the inner wall of the middle drum 40 is an archimedes reverse spiral.