Grain drying apparatus

Abstract

The present application relates to a kind of grain drying equipment, the top of drying cylinder is equipped with feeding port, sleeve is coaxially fixed in drying cylinder, sleeve and the circumferential direction of drying cylinder form drying space with feeding port being communicated, the circumferential direction of the upper end of sleeve is equipped with multiple air holes, conveying mechanism is located at the bottom of drying cylinder and is communicated with drying space, sealing mechanism includes two semicircular plates rotationally arranged in sleeve, and when two semicircular plates are located in the same plane and are located below multiple air holes, the interior of sleeve can be separated to form first cavity and second cavity, first cavity is communicated with air inlet pipe extending to the outside of drying cylinder, multiple air ducts are arranged in drying space and are communicated with first cavity, and multiple air ducts are spaced along the circumferential direction of sleeve, air duct is equipped with multiple through holes along the axial direction. Solve the problem that drying cylinder in prior art carries out drying to grain, hot airflow is not evenly distributed in drying cylinder, and it is prone to cause the problem of low grain efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain drying equipment, and particularly relates to a grain drying equipment. BACKGROUND

[0002] In a traditional grain processing plant, in order to facilitate the storage of the grain, the grain transported back from the combine harvester is directly dried by the drying equipment when being transported to the grain storage.

[0003] As the patent application No. 201721296608.9, a multifunctional grain dryer and a multifunctional grain drying system are disclosed, and the drying system is specifically disclosed as follows: a dust removal and screening bin is provided with a feed hopper at the top, a fan is arranged on the outer wall, a dust outlet is arranged on the other side, a sieve plate is installed at the bottom, and a vibrating machine is arranged on both sides of the sieve plate; a drying bin is provided with a telescopic baffle at the top and a discharge port at the bottom, a hot air fan is arranged on one side and a vacuum machine is arranged on the other side; a moisture detector is connected with the drying bin, and a controller is connected with the fan, the vibrating machine, the hot air fan, the vacuum machine, the telescopic baffle and the moisture detector; the above-mentioned scheme is used to dry the grain, but the hot air flow is not uniformly distributed in the drying bin, so that the grain near the air outlet of the hot air fan is dried for a shorter time, and the grain far from the air outlet of the hot air fan is dried for a longer time, resulting in a low drying rate of the grain. SUMMARY

[0004] The present application aims to overcome the above technical deficiencies, and provides a grain drying equipment, which solves the problem that the hot air flow is not uniformly distributed in the drying cylinder when the drying cylinder is used to dry the grain in the prior art, and the grain efficiency is low.

[0005] To achieve the above technical purposes, the present application adopts the following technical solutions:

[0006] The application provides a grain drying equipment, which comprises a drying cylinder, a sleeve, a closing mechanism, a plurality of air guide pipes and a conveying mechanism, the top of the drying cylinder is provided with a feeding port, the sleeve is coaxially fixed in the drying cylinder, the sleeve and the circumference of the drying cylinder form a drying space which is communicated with the feeding port, a plurality of air distribution holes are arranged on the circumference of the upper end of the sleeve, the conveying mechanism is arranged at the bottom of the drying cylinder and is communicated with the drying space, the conveying mechanism is used for outputting the grain in the drying space, the closing mechanism comprises two semicircular plates which are rotatably arranged in the sleeve, when the two semicircular plates are located in the same plane and below the plurality of air distribution holes, the inner part of the sleeve is divided into a first cavity and a second cavity which is above the first cavity, the first cavity is communicated with an air inlet pipe which extends to the outside of the drying cylinder, a plurality of air guide pipes are arranged in the drying space and are communicated with the first cavity, and the plurality of air guide pipes are arranged at intervals along the circumference of the sleeve, and the air guide pipes are provided with a plurality of through holes along the axial direction.

[0007] In some embodiments, a plurality of connecting rods are fixedly arranged at intervals along the circumference of the sleeve, and the sleeve is fixedly connected with the inner wall of the drying cylinder through the connecting rods.

[0008] In some embodiments, a conical uniform distribution hopper is arranged on the top of the sleeve corresponding to the feeding port.

[0009] In some embodiments, the conveying mechanism comprises a lifting pipe, an extrusion screw and a speed reducer motor, one end of the lifting pipe is sequentially arranged in the drying space and the first cavity, the extrusion screw is coaxially arranged in the lifting pipe, the speed reducer motor is fixedly arranged at the other end of the lifting pipe and the output shaft is fixedly connected with one end of the extrusion screw, the side wall of the lifting pipe in the drying space is provided with a feeding port, the side wall of the lifting pipe in the first cavity is provided with a discharging pipe, and the discharging pipe is arranged in the drying space and extends to the outside of the drying cylinder.

[0010] In some embodiments, a shielding mechanism is further arranged, the shielding mechanism comprises a ring block which is sleeved on the upper end of the sleeve, and the ring block can slide along the axial direction of the sleeve to shield the plurality of air distribution holes.

[0011] In some embodiments, the closing mechanism further comprises a driving member, the driving member comprises a limiting block, a limiting shaft and a handle, the limiting block is fixedly connected with the rotating shaft of the semicircular plate, an arc-shaped hole is arranged on the limiting block, the limiting shaft is fixedly arranged on the drying cylinder and passes through the arc-shaped hole, and one end of the handle is fixedly connected with the rotating shaft of the semicircular plate.

[0012] In some embodiments, at least one temperature sensor is arranged in the drying space.

[0013] In some embodiments, a hot air mechanism is further included, which is in communication with the air inlet pipe, and is used for conveying hot air flow into the first cavity.

[0014] In some embodiments, a moving mechanism is further included, and the hot air mechanism and the drying cylinder are both arranged on the moving mechanism.

[0015] In some embodiments, a ladder extending to the top of the drying cylinder is arranged on the moving mechanism.

[0016] Compared with the prior art, the grain drying equipment provided by the present application can effectively improve the drying efficiency of the grain and reduce the waste of heat resources when the amount of grain to be dried is small. When the amount of grain to be dried is small, the inner part of the sleeve is separated into a first cavity and a second cavity by the two semicircular plates, the first cavity is in communication with an air inlet pipe extending to the outside of the drying cylinder, a plurality of air guide pipes are arranged in the drying space and in communication with the first cavity, and the plurality of air guide pipes are arranged at intervals along the circumference of the sleeve. The hot air flow conveyed into the first cavity through the air inlet pipe can be uniformly dispersed into the heating space through the plurality of through holes of the air guide pipes, effectively ensuring that the hot air flow can be uniformly dispersed in the drying space. When the amount of grain to be dried is large, the first cavity and the second cavity are connected by rotating the two semicircular plates, and part of the hot air flow can also be uniformly dispersed into the heating space through the plurality of air dispersing holes to dry the grain, so that the grain at the bottom and the top of the drying space can be dried synchronously, effectively improving the drying efficiency of the grain and reducing the waste of heat resources. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the grain drying equipment provided by the present application;

[0018] Figure 2 is a structural schematic view of another view of the grain drying equipment provided by the present application;

[0019] Figure 3 is a front view of the grain drying equipment provided by the present application;

[0020] Figure 4 is Figure 3 is an enlarged view of B in FIG. 4;

[0021] Figure 5 is a partial sectional view of the grain drying equipment provided by the present application;

[0022] Figure 6 is Figure 5 is an enlarged view of A in FIG. 5;

[0023] Figure 7 is a structural schematic view of the uniform distribution hopper provided by the present application;

[0024] Figure 8is a structural schematic diagram of the shielding mechanism of the present application. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0026] Please refer to Figures 1 to 8 The present application provides a grain drying device. The grain drying device is used for drying grain, so that the hot air flow can be uniformly dispersed inside the drying cylinder. When the amount of grain to be dried is small, the waste of heat resources can be reduced. When the amount of grain to be dried is large, the grain at the bottom and the top of the drying cylinder can be dried synchronously, thereby effectively improving the drying efficiency of the grain.

[0027] In the specific embodiment, a grain drying device includes a drying cylinder 1, a sleeve 2, a sealing mechanism 3, a plurality of air guide pipes 4 and a conveying mechanism 5. The top of the drying cylinder 1 is provided with a feeding port 11. The sleeve 2 is coaxially fixed in the drying cylinder 1. The sleeve 2 and the circumference of the drying cylinder 1 form a drying space 10 which is in communication with the feeding port 11. A plurality of air dispersing holes 21 are arranged on the circumference of the upper end of the sleeve 2. The conveying mechanism 5 is arranged at the bottom of the drying cylinder 1 and is in communication with the drying space 10. The conveying mechanism 5 is used for outputting the grain in the drying space 10. The sealing mechanism 3 includes two semicircular plates 31 which are rotatably arranged in the sleeve 2. When the two semicircular plates 31 are located in the same plane and below the plurality of air dispersing holes 21, the inside of the sleeve 2 is divided into a first cavity 2a and a second cavity 2b which is above the first cavity 2a. The first cavity 2a is in communication with an air inlet pipe 2c which extends to the outside of the drying cylinder 1. A plurality of air guide pipes 4 are arranged in the drying space 10 and are in communication with the first cavity 2a. The plurality of air guide pipes 4 are arranged along the circumference of the sleeve 2 at intervals. The air guide pipes 4 are provided with a plurality of through holes along the axial direction.

[0028] In actual work process, the grain is conveyed to the feeding port 11 through the lifting mechanism (not shown in the figure), and the grain falls into the inside of the drying space 10 through the feeding port 11. When the amount of grain to be dried is small, the two semicircular plates 31 are located in the same plane, the hot air is conveyed to the inside of the first cavity 2a through the air inlet pipe 2c, and the hot air can be uniformly dispersed to the inside of the drying space 10 through the through holes on the plurality of air guide pipes 4 to dry the grain; when the amount of grain to be dried is large, the two semicircular plates 31 are rotated to make the first cavity 2a and the second cavity 2b communicate, and part of the hot air can be uniformly dispersed to the inside of the drying space 10 through the plurality of air distribution holes 21, so as to ensure that the grain at the bottom and the top of the drying space 10 is dried synchronously.

[0029] In the specific embodiment, four connecting rods 20 are welded in the circumference of the sleeve 2, the axes of the adjacent two connecting rods 20 are perpendicular to each other, and the four connecting rods 20 are further welded and fixed with the inner wall of the drying cylinder 1. Specifically, the inner diameters of the drying cylinder 1 and the sleeve 2 at the bottom are both arranged in a reducing manner.

[0030] It should be noted that the drying cylinder 1 and the sleeve 2 are both welded by steel plates, and of course can also be welded by iron plates or alloy plates.

[0031] Further, in order to avoid the escape of the hot air from the top of the second cavity 2b, the top of the sleeve 2 can be closed by a cover plate.

[0032] On the basis of the above scheme, in order to ensure that the grain conveyed to the drying space 10 through the feeding port 11 can be uniformly dispersed into the drying space 10, specifically, the top of the sleeve 2 is provided with a conical uniform distribution hopper 6 corresponding to the feeding port 11, and the center of the conical uniform distribution hopper 6 coincides with the center of the feeding port 11.

[0033] In the specific embodiment, the conical uniform distribution hopper 6 is welded by an iron plate, and an annular gap communicating with the drying space 10 is formed between the conical uniform distribution hopper 6 and the feeding port 11.

[0034] It should be noted that the conveying mechanism 5 is not limited to a certain specific structure, as long as it can convey the grain in the drying space 10 to the outside of the drying cylinder, and other details are not described here.

[0035] In the specific embodiment, the conveying mechanism 5 comprises a lifting pipe 51, an extrusion screw 52 and a speed reducer motor 53. One end of the lifting pipe 51 is sequentially arranged in the drying space 10 and the first cavity 2a. The extrusion screw 52 is coaxially arranged in the lifting pipe 51. The speed reducer motor 53 is fixedly arranged at the other end of the lifting pipe 51 and the output shaft is fixedly connected with one end of the extrusion screw 52. The lifting pipe 51 is provided with a feeding port 511 on the side wall of the drying space 10. The lifting pipe 51 is provided with a discharging pipe 512 on the side wall of the first cavity 2a. The discharging pipe 512 is arranged in the drying space 10 and extends to the outside of the drying cylinder 1.

[0036] Specifically, the extrusion screw 52 is driven to rotate by the speed reducer motor 53. The grain enters the lifting pipe 51 through the feeding port 511. The extrusion screw 52 can lift the grain to a certain height and discharge it to the outside of the drying cylinder 1 through the discharging pipe 512.

[0037] In the specific embodiment, a plurality of air distribution holes 21 are arranged along the height direction of the sleeve. A plurality of air distribution holes 21 are arranged on different height layers. The side wall of the drying cylinder 1 is provided with an observation window for observing the height of the grain in the drying space 10.

[0038] On the basis of the above-mentioned scheme, the shielding mechanism 7 is further included. The shielding mechanism 7 comprises a ring block 71 arranged on the upper end of the sleeve 2. The ring block 71 can slide along the axis direction of the sleeve 2 to shield a plurality of air distribution holes 21. In the specific embodiment, the length of the ring block 71 is less than the length of the connecting line between the plurality of air distribution holes 21 in the height direction of the sleeve. That is, the ring block 71 can only shield a part of the plurality of air distribution holes 21 on the height layers by sliding along the axis direction of the sleeve 2.

[0039] Specifically, the height of the grain in the drying space 10 can be observed. The ring block 71 can be driven to slide up and down along the axis direction of the sleeve 2, so that the ring block 71 can shield a plurality of air distribution holes 21. On the basis of the above-mentioned scheme, the shielding mechanism 7 further comprises two L-shaped pull rods 72. One end of each L-shaped pull rod 72 is hingedly connected with the ring block 71. The other end of each L-shaped pull rod 72 can be hung with the top of the drying cylinder 1 to fix the ring block 71 on the sleeve 2.

[0040] In the specific embodiment, the sealing mechanism 3 further comprises a driving member 32. The driving member 32 comprises a limiting block 321, a limiting shaft 322 and a handle 323. The limiting block 321 is fixedly connected with the rotating shaft of the semicircular plate 31. An arc-shaped hole 320 is formed in the limiting block 321. The limiting shaft 322 is fixedly arranged on the drying cylinder 1 and arranged in the arc-shaped hole 320. One end of the handle 323 is fixedly connected with the rotating shaft of the semicircular plate 31.

[0041] It should be noted that the two semicircular plates 31 are connected with driving members 32, and the two driving members 32 can drive the two semicircular plates 31 to be in the same plane or in parallel. In the embodiment, when the axes of the two handles 323 are perpendicular to the horizontal ground, the two semicircular plates 31 are in parallel, and when the axes of the two handles 323 are parallel to the horizontal ground, the two semicircular plates 31 are in the same plane.

[0042] On the basis of the above scheme, at least one temperature sensor is arranged in the drying space 10. Specifically, the temperature sensor is arranged to detect the temperature in the drying space 10, so as to adjust the temperature of the hot air flow delivered into the first cavity 2a through the air inlet pipe 2c, so as to avoid that the temperature of the hot air flow is too low, the drying time is too long, or the temperature of the hot air flow is too high, so that the grains are steamed. In the embodiment, the temperature of the hot air flow needs to be adjusted according to the actual situation, and other details are not described herein.

[0043] On the basis of the above scheme, the hot air mechanism 8 is further included, the hot air mechanism 8 is in communication with the air inlet pipe 2c, and the hot air mechanism 8 is used for delivering hot air flow into the first cavity 2a. It should be noted that the hot air mechanism 8 is not limited to a specific structure, as long as it can deliver hot air flow to the drying cylinder. In the embodiment, the hot air mechanism 8 can be a hot air delivery furnace.

[0044] On the basis of the above scheme, the moving mechanism 9 is further included, and the hot air mechanism 8 and the drying cylinder 1 are arranged on the moving mechanism 9. In an embodiment, the moving mechanism 9 can be a flatbed trailer, and the vehicle is connected with the flatbed trailer, so as to facilitate the transportation of the grain drying device to the designated position.

[0045] In the embodiment, the moving mechanism 9 is provided with a ladder 91 extending to the top of the drying cylinder 1, and specifically, the operator can climb to the top of the drying cylinder 1 through the ladder, and the upper L-shaped pull rod 72 is pulled to remove the shielding of all the air distribution holes 21.

[0046] The beneficial effects are:

[0047] Compared with the prior art, the grain drying equipment provided by the application can effectively ensure that the hot air flow is uniformly dispersed in the drying space when the amount of grain to be dried is small, and when the amount of grain to be dried is large, part of the hot air flow can also be uniformly dispersed into the heating space through the plurality of air dispersing holes to dry the grain, so that the grain at the bottom and top of the drying space can be dried synchronously, the drying efficiency of the grain is effectively improved, and the waste of heat resources is reduced; so that the large-scale grain growers and cooperatives and small grain dealers can all operate drying, the grain drying group is expanded, the grain storage conditions are ensured, the mildewing of the grain due to the failure to dry the grain in time is avoided, the process of the farmers drying the grain is saved, the grain can be sold at the dry grain price in time, the income of the farmers is improved, and the storage loss and cost are reduced.

[0048] The specific embodiments of the application described above do not constitute a limitation on the protection scope of the application. Any various other corresponding changes and modifications made according to the technical concept of the application shall be included in the protection scope of the claims of the application.

Claims

1. A grain drying apparatus, comprising a drying cylinder, a sleeve, a closing mechanism, a plurality of air ducts and a conveying mechanism, a top of the drying cylinder is provided with a feeding port, the sleeve is coaxially fixed in the drying cylinder, a drying space is formed between the sleeve and the circumference of the drying cylinder and is communicated with the feeding port, a plurality of air holes are arranged on the circumference of the upper end of the sleeve, the conveying mechanism is arranged at the bottom of the drying cylinder and is communicated with the drying space, and the conveying mechanism is used for outputting the grain in the drying space, characterized in that, The closing mechanism comprises two semicircular plates rotatably arranged in the sleeve, and when the two semicircular plates are located in the same plane and below the plurality of air dispersing holes, the inner part of the sleeve is divided into a first cavity and a second cavity above the first cavity, the first cavity is communicated with an air inlet pipe extending to the outside of the drying cylinder, a plurality of air guide pipes are arranged in the drying space and communicated with the first cavity, and the air guide pipes are arranged along the circumference of the sleeve, and the air guide pipes are provided with a plurality of through holes along the axial direction; The conveying mechanism comprises a lifting pipe, an extrusion screw and a speed reduction motor, one end of the lifting pipe is sequentially arranged in the drying space and the first cavity, the extrusion screw is coaxially arranged in the lifting pipe, the speed reduction motor is fixedly arranged at the other end of the lifting pipe and the output shaft is fixedly connected with one end of the extrusion screw, the lifting pipe is provided with a feeding port on the side wall of the drying space, and the lifting pipe is provided with a discharging pipe on the side wall of the first cavity, the discharging pipe is arranged in the drying space and extends to the outside of the drying cylinder; Further comprising a shielding mechanism, the shielding mechanism comprises a ring block arranged on the upper end of the sleeve, and the ring block slides along the axial direction of the sleeve to shield the plurality of air dispersing holes.

2. The grain drying apparatus of claim 1, wherein A plurality of connecting rods are fixedly arranged on the circumference of the sleeve, and the sleeve is fixedly connected with the inner wall of the drying cylinder through the connecting rods.

3. The grain drying apparatus of claim 1, wherein, A conical uniform distribution hopper is arranged on the top of the sleeve corresponding to the feeding port.

4. The grain drying apparatus of claim 1, wherein, The closing mechanism further comprises a driving member, the driving member comprises a limiting block, a limiting shaft and a handle, the limiting block is fixedly connected with the rotating shaft of the semicircular plate, an arc-shaped hole is arranged on the limiting block, the limiting shaft is fixedly arranged on the drying cylinder and arranged in the arc-shaped hole, and one end of the handle is fixedly connected with the rotating shaft of the semicircular plate.

5. The grain drying apparatus of claim 1, wherein, At least one temperature sensor is arranged in the drying space.

6. The grain drying apparatus of claim 1, wherein, Further comprising a hot air mechanism, the hot air mechanism is communicated with the air inlet pipe, and the hot air mechanism is used for conveying hot air flow into the first cavity.

7. A grain drying apparatus as claimed in claim 6, wherein Further comprising a moving mechanism, the hot air mechanism and the drying cylinder are arranged on the moving mechanism.

8. A grain drying apparatus as claimed in claim 7, wherein A ladder extending to the top of the drying cylinder is arranged on the moving mechanism.

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