Tempering section and drying tower using same

Abstract

The tempering section comprises an upper cylinder body and a lower cylinder body which are fixedly connected, the lower cylinder body is of a square cylindrical structure, a plurality of horizontally-arranged flow guide columns are arranged in a cylinder cavity of the lower cylinder body, the flow guide columns are parallel to one another and are arranged at intervals, each flow guide column comprises a hinged shaft, a first flow guide plate and a second flow guide plate, and the hinged shafts are fixed to the inner cylinder wall of the lower cylinder body; the upper ends of the two flow guide plates are hinged to the hinged shaft, a telescopic device capable of adjusting the distance between the two flow guide plates is connected between the two flow guide plates, and the two flow guide plates are detachably and fixedly connected to the inner cylinder wall of the lower cylinder or supported on the inner cylinder wall of the lower cylinder through elastic supporting devices. And the two flow guide plates jointly form an inverted V-shaped structure. The utility model further discloses a drying tower using the tempering section. According to the tempering section and the drying tower using the tempering section, the tempering time of different kinds of grain particles can be adjusted, and therefore the tempering section and the drying tower using the tempering section can be suitable for drying operation of all kinds of grain particles.

Description

Technical Field

[0001] The utility model relates to the field of grain drying, in particular to a tempering section and a drying tower using the tempering section. Background Art

[0002] After the grain is harvested, it has a high water content and needs to be dried before storage. In addition to the traditional sun drying of grain particles, hot air is also used to dry the grain particles. The existing drying equipment includes a drying tower, in which a drying section and a tempering section are arranged. The function of the drying section is to introduce hot air to dry the grain particles flowing through this section, and the function of the tempering section is to temper the grain particles that have passed through the drying section, that is, to complete the internal temperature and humidity exchange of the grain particles, so that the moisture gradient inside and outside the grain particles reaches equilibrium. The Chinese utility model patent with the application number 201820936821.X, the authorization announcement date of May 21, 2019, and the name of "Diverting Type Tempering Section of Grain Dryer" includes a rectangular bin body for holding grain, and a number of flow guiding columns arranged at the bottom of the rectangular bin body and parallel to the length direction of the rectangular bin body. The flow guiding columns are evenly distributed in the width direction of the rectangular bin body, and a blanking gap for the flow of grain is arranged between two adjacent flow guiding columns. For different types of grain particles, the time required for them to pass through the tempering section is different. Some need a longer time for tempering, and some need a shorter time for tempering. If you want to adjust the tempering time of the grain particles, you need to adjust the blanking gap between two adjacent flow guiding columns in the above-mentioned utility model patent. If the blanking gap is enlarged, the tempering time of the grain particles will be shortened. On the contrary, if the blanking gap is reduced, the tempering time of the grain particles will be prolonged. However, the blanking gap between two adjacent flow guiding columns in the above-mentioned utility model patent is fixed and cannot be applied to the drying operations of all types of grain particles. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a tempering section and a drying tower using the same, which can adjust the tempering time of different types of grain particles, so it can be applied to the drying operations of all types of grain particles.

[0004] The tempering section in the utility model includes an upper cylinder body and a lower cylinder body fixedly connected. The upper cylinder body is located above the lower cylinder body. The upper cylinder body is used to be fixedly arranged inside the drying tower. The lower cylinder body is of a square cylindrical structure. A plurality of horizontally arranged flow guiding columns are arranged in the cylinder cavity of the lower cylinder body. The plurality of flow guiding columns are parallel to each other and arranged at intervals.

[0005] The flow guiding column includes a hinge shaft, a first flow guiding plate, and a second flow guiding plate. Both ends of the hinge shaft are fixedly connected to two relatively arranged inner cylinder walls of the lower cylinder body. The first flow guiding plate and the second flow guiding plate are both arranged in the up-down direction. The upper ends of the first flow guiding plate and the second flow guiding plate are both hinged to the hinge shaft. A telescopic device capable of adjusting the distance between each other is connected between the first flow guiding plate and the second flow guiding plate. The first flow guiding plate and the second flow guiding plate are both detachably and fixedly connected to the two relatively arranged inner cylinder walls of the lower cylinder body. The first flow guiding plate and the second flow guiding plate together form an inverted V-shaped structure.

[0006] In the slow recovery section of the present utility model, the telescopic device includes a first rod, a second rod, and a ring buckle. Oppositely arranged first threaded holes and second threaded holes are provided on the ring wall of the ring buckle. One end of the first rod is threadedly connected to the first threaded hole, and the other end of the first rod is hinged to the first flow guiding plate. One end of the second rod is threadedly connected to the second threaded hole, and the other end of the second rod is hinged to the second flow guiding plate.

[0007] The slow recovery section of the present utility model includes a fixedly connected upper cylinder body and a lower cylinder body. The upper cylinder body is located above the lower cylinder body. The upper cylinder body is used to be fixedly arranged inside the drying tower. The lower cylinder body is a square cylindrical structure. A plurality of horizontally arranged flow guiding columns are provided in the cylinder cavity of the lower cylinder body. The plurality of flow guiding columns are parallel to each other and arranged at intervals.

[0008] The flow guiding column includes a hinge shaft, a first flow guiding plate, and a second flow guiding plate. Both ends of the hinge shaft are fixedly connected to two relatively arranged inner cylinder walls of the lower cylinder body. The first flow guiding plate and the second flow guiding plate are both arranged in the up-down direction. The upper ends of the first flow guiding plate and the second flow guiding plate are both hinged to the hinge shaft. A telescopic device capable of adjusting the distance between each other is connected between the first flow guiding plate and the second flow guiding plate. The first flow guiding plate and the second flow guiding plate together form an inverted V-shaped structure. An elastic support device is provided below the flow guiding column. The elastic support device includes a support plate abutted between the first flow guiding plate and the second flow guiding plate. The support plate is supported on the inner cylinder wall of the lower cylinder body by a spring.

[0009] In the slow recovery section of the present utility model, the telescopic device includes a first rod, a second rod, and a ring buckle. Oppositely arranged first threaded holes and second threaded holes are provided on the ring wall of the ring buckle. One end of the first rod is threadedly connected to the first threaded hole, and the other end of the first rod is hinged to the first flow guiding plate. One end of the second rod is threadedly connected to the second threaded hole, and the other end of the second rod is hinged to the second flow guiding plate.

[0010] The drying tower using the above-mentioned conditioning section in the present utility model includes a cylindrical drying tower body arranged vertically, and the upper cylinder of the conditioning section is fixedly arranged on the inner cylinder wall of the drying tower body.

[0011] The difference between the conditioning section of the present utility model and the drying tower using the same and the prior art lies in that the gap between two adjacent flow guiding columns in the conditioning section of the present utility model can be adjusted. That is, the flow guiding column includes a hinge shaft, a first flow guiding plate and a second flow guiding plate. Both the first flow guiding plate and the second flow guiding plate are hinged on the hinge shaft. In this way, the distance between the first flow guiding plate and the second flow guiding plate can be adjusted through a telescopic device (in this process, both flow guiding plates rotate around the hinge shaft). When the distance between the two flow guiding plates is adjusted to be larger, the gap between two adjacent flow guiding columns becomes smaller, resulting in a longer conditioning time for the cereal grains; conversely, when the distance between the two flow guiding plates is adjusted to be smaller, the gap between two adjacent flow guiding columns becomes larger, resulting in a shorter conditioning time for the cereal grains. After the distance between the two flow guiding plates of each flow guiding column is adjusted in place, the two flow guiding plates can be detachably and fixedly connected to the inner cylinder wall of the lower cylinder (the purpose of the detachable and fixed connection is to facilitate the next adjustment). Of course, it is also possible not to fix the two flow guiding plates on the inner cylinder wall of the lower cylinder, but to add an elastic support device to support the positions of the two flow guiding plates. The above two methods can both keep the positions of the two flow guiding plates after adjustment in place, so that the cereal grains can fall through the gap between two adjacent flow guiding columns. Thus, it can be seen that the present utility model can adjust the conditioning time of different types of cereal grains, so it can be applicable to the drying operations of all types of cereal grains.

[0012] The present utility model will be further described below with reference to the accompanying drawings. Description of the Drawings

[0013] Figure 1 is a perspective view of the conditioning section in the present utility model;

[0014] Figure 2 is a front view of the conditioning section in the present utility model;

[0015] Figure 3 is a top view of the conditioning section in the present utility model;

[0016] Figure 4 is a sectional view along the Figure 3 line A-A in

[0017] Figure 5 is a sectional view along the Figure 3 line B-B in

[0018] Figure 6 is a top view of the flow guiding column in the present utility model;

[0019] Figure 7 is alongFigure 6 Cross-sectional view of the C-C line in the middle;

[0020] Figure 8 It is Figure 7 Partial enlarged view at D in the middle;

[0021] Figure 9 It is Figure 7 Partial enlarged view at E in the middle;

[0022] Figure 10 It is along Figure 3 Another cross-sectional view of the A-A line in the middle;

[0023] Figure 11 It is Figure 10 Partial enlarged view at F in the middle;

[0024] Figure 12 It is along Figure 3 Another cross-sectional view of the B-B line in the middle;

[0025] Figure 13 It is Figure 12 Partial enlarged view at G in the middle. Specific implementation manner

[0026] As Figure 1-9 shown, in the tempering section of the present utility model, it includes an upper cylinder body 66 and a lower cylinder body 67 which are fixedly connected. The upper cylinder body 66 is located above the lower cylinder body 67. The upper cylinder body 66 is used to be fixedly arranged inside the drying tower. The lower cylinder body 67 is of a square cylinder structure. A plurality of horizontally arranged guide columns 69 are arranged in the cylinder cavity of the lower cylinder body 67. The plurality of guide columns 69 are parallel to each other and arranged at intervals.

[0027] The lower cylinder body 67 is of a square cylinder structure, and the diagonal length of the inner cylinder of the lower cylinder body 67 is equal to the inner diameter of the inner cylinder of the upper cylinder body 66. In order to prevent cereal grains from accumulating at the intersection of the inner cylinders of the upper cylinder body 66 and the lower cylinder body 67, a baffle plate 68 is arranged between the inner cylinder wall of the upper barrel opening of the lower cylinder body 67 and the inner cylinder wall of the upper cylinder body 66. In this way, after the cereal grains enter the upper cylinder body 66, they can enter the lower cylinder body 67 along the baffle plate 68. The baffle plate 68 is provided with 4 pieces, and the 4 baffle plates 68 are arranged corresponding to the 4 sides of the upper barrel opening of the lower cylinder body 67 one by one.

[0028] When the cereal grains flow through the tempering section, the cereal grains first enter the upper cylinder body 66, and then enter the lower cylinder body 67 downward, and flow out of the tempering section from the gap between two adjacent guide columns 69.

[0029] Combined with Figure 6-9As shown in the figure, in the slow recovery section of the present utility model, the guide column 69 includes a hinge shaft 72, a first guide plate 70 and a second guide plate 71. The two ends of the hinge shaft 72 are respectively fixedly connected to two relatively arranged inner cylinder walls of the lower cylinder 67. The first guide plate 70 and the second guide plate 71 are both arranged in the up-down direction. The upper ends of the first guide plate 70 and the second guide plate 71 are both hinged to the hinge shaft 72. A telescopic device capable of adjusting the distance between them is connected between the first guide plate 70 and the second guide plate 71. The first guide plate 70 and the second guide plate 71 are both detachably and fixedly connected to the two relatively arranged inner cylinder walls of the lower cylinder 67. The first guide plate 70 and the second guide plate 71 together form an inverted V-shaped structure.

[0030] Both the first guide plate 70 and the second guide plate 71 are rectangular plate-like structures. One long side end of the first guide plate 70 and the second guide plate 71 is the upper end, and the other long side end is the lower end. The long side ends serving as the upper ends of the two guide plates are both hinged to the hinge shaft 72, and the long side ends serving as the lower ends extend downward. It can be considered that both guide plates are arranged in the up-down direction. In this embodiment, the hinge shaft 72 is arranged horizontally, and the length directions of the two guide plates are consistent with the hinge shaft 72.

[0031] Hinge holes are provided at the upper ends of the first guide plate 70 and the second guide plate 71. The two guide plates are respectively sleeved on the hinge shaft 72 through their respective hinge holes, and there is a clearance fit between the hinge holes of the two guide plates and the hinge shaft 72. In this way, both guide plates can rotate around the hinge shaft 72 to achieve hinging.

[0032] Since the upper ends of the first guide plate 70 and the second guide plate 71 are both hinged to the hinge shaft 72, that is to say, both the first guide plate 70 and the second guide plate 71 can rotate around the hinge shaft 72. Therefore, when the telescopic device adjusts the distance between the first guide plate 70 and the second guide plate 71, both the first guide plate 70 and the second guide plate 71 rotate around the hinge shaft 72. That is, when the distance between the first guide plate 70 and the second guide plate 71 is increased by the telescopic device, as Figure 7 shown, the first guide plate 70 rotates around the hinge shaft 72 in a direction away from the second guide plate 71, and the second guide plate 71 rotates around the hinge shaft 72 in a direction away from the first guide plate 70. Thus, the included angle γ between the two guide plates becomes larger; when the distance between the first guide plate 70 and the second guide plate 71 is decreased by the telescopic device, the first guide plate 70 rotates around the hinge shaft 72 in a direction close to the second guide plate 71, and the second guide plate 71 rotates around the hinge shaft 72 in a direction close to the first guide plate 70. Thus, the included angle γ between the two guide plates becomes smaller. In summary, the telescopic device can adjust the distance between the first guide plate 70 and the second guide plate 71 to become larger or smaller, so that the included angle between the first guide plate 70 and the second guide plate 71 becomes larger or smaller.

[0033] After the telescopic device adjusts the distance between the first deflector 70 and the second deflector 71, both ends of each deflector are respectively detachably and fixedly connected to two relatively arranged inner cylinder walls of the lower cylinder body 67, and these two inner cylinder walls are also used to connect the hinge shaft 72. After fixing both deflectors of each deflector column 69 to the inner cylinder wall of the lower cylinder body 67, both deflectors of each deflector column 69 are in an inverted V-shaped structure, so that the gap between two adjacent deflector columns 69 is a tapered gap that is larger at the top and smaller at the bottom, thus facilitating the falling of grain particles.

[0034] Combined Figure 7 、 9 As shown in , in the tempering section of the present utility model, the telescopic device includes a first rod 73, a second rod 75 and an annular buckle 74. Oppositely arranged first threaded hole and second threaded hole are provided on the annular wall of the annular buckle 74. One end of the first rod 73 is threadedly connected in the first threaded hole, the other end of the first rod 73 is hinged to the first deflector 70, one end of the second rod 75 is threadedly connected in the second threaded hole, and the other end of the second rod 75 is hinged to the second deflector 71.

[0035] Hinge lugs 76 are provided on both the first deflector 70 and the second deflector 71. The other end of the first rod 73 is hinged to the hinge lug 76 of the first deflector 70, and the other end of the second rod 75 is hinged to the hinge lug 76 of the second deflector 71.

[0036] When it is necessary to increase the distance between the first deflector 70 and the second deflector 71, rotate the annular buckle 74 in the positive direction. One end of the first rod 73 connected to the annular buckle 74 moves from the inside to the outside of the annular buckle 74. At the same time, one end of the second rod 75 connected to the annular buckle 74 also moves from the inside to the outside of the annular buckle 74. Then, the first rod 73 and the second rod 75 simultaneously push the two deflectors to rotate around the hinge shaft 72, increasing the distance between the two deflectors (i.e., increasing the included angle γ between the two deflectors). During this process, one end of the first rod 73 hinged to the first deflector 70 rotates relative to the first deflector 70, reducing the included angle α between the first rod 73 and the first deflector 70. At the same time, one end of the second rod 75 hinged to the second deflector 71 also rotates relative to the second deflector 71, reducing the included angle β between the second rod 75 and the second deflector 71.

[0037] When it is necessary to reduce the distance between the first deflector 70 and the second deflector 71, rotate the annular buckle 74 in the reverse direction. One end of the first rod 73 connected to the annular buckle 74 moves from the outside to the inside of the annular buckle 74. At the same time, one end of the second rod 75 connected to the annular buckle 74 also moves from the outside to the inside of the annular buckle 74. Then, the first rod 73 and the second rod 75 pull the two deflectors to rotate around the hinge shaft 72 inwardly, reducing the distance between the two deflectors (i.e., reducing the included angle γ between the two deflectors). During this process, one end of the first rod 73 hinged to the first deflector 70 rotates relative to the first deflector 70, increasing the included angle α between the first rod 73 and the first deflector 70. At the same time, one end of the second rod 75 hinged to the second deflector 71 also rotates relative to the second deflector 71, increasing the included angle β between the second rod 75 and the second deflector 71.

[0038] The reason for adjusting the distance between the two deflectors through the telescopic device is to adjust the gap size between two adjacent guide columns 69. Specifically: when the distance between the two deflectors of each guide column 69 increases, the gap between two adjacent guide columns 69 will decrease, which will make the time for the cereal grains to pass through the guide column 69 longer, that is, the time for passing through the tempering section is longer; conversely, when the distance between the two deflectors of each guide column 69 decreases, the gap between two adjacent guide columns 69 will increase, which will make the time for the cereal grains to pass through the guide column 69 shorter, that is, the time for passing through the tempering section is shorter. All in all, by adjusting the distance between the two deflectors of the guide column 69 through the telescopic device, the time for the cereal grains to pass through the tempering section can be adjusted, that is, the tempering time of the cereal grains can be adjusted.

[0039] When specifically installing the flow guide columns 69, the gap between two adjacent flow guide columns 69 can be adjusted according to the actual situation to determine the time taken for the cereal grains to flow through the tempering section. Then, the two flow guide plates of each flow guide column 69 are detachably and fixedly connected to two relatively arranged inner cylinder walls of the lower cylinder body 67 through bolts. When specifically fixing the flow guide plate to the inner cylinder wall of the lower cylinder body 67, fixing plates can be respectively fixedly connected to both ends of the flow guide plate first, bolt holes are arranged on the fixing plates, and then the bolts are passed through the bolt holes and fixed to the inner cylinder wall of the lower cylinder body 67. Of course, bolts can also be respectively arranged on the inner and outer sides at one end of the flow guide plate, and the bolts on both sides are fixed to one inner cylinder wall of the lower cylinder body 67. In this way, one end of the flow guide plate is clamped between the bolts on the inner and outer sides. Then, the other end of the flow guide plate is fixed to the other inner cylinder wall (this inner cylinder wall is relatively arranged with the above-mentioned one inner cylinder wall) of the lower cylinder body 67 by using the same method, and thus the flow guide plate is fixed to the inner cylinder wall of the lower cylinder body 67. After that, when it is necessary to adjust the gap between two adjacent flow guide columns 69, the bolts are unscrewed, and the distance between the two flow guide plates of each flow guide column 69 is adjusted through the telescopic device. After the gap between two adjacent flow guide columns 69 is adjusted in place, the flow guide column 69 is detachably and fixedly connected to the inner cylinder wall of the lower cylinder body 67 through bolts.

[0040] As Figure 10-13 shown, the flow guide column 69 in the present utility model can also adopt the following structure: the flow guide column 69 includes a hinge shaft 72, a first flow guide plate 70, and a second flow guide plate 71. Both ends of the hinge shaft 72 are respectively fixedly connected to two relatively arranged inner cylinder walls of the lower cylinder body 67. The first flow guide plate 70 and the second flow guide plate 71 are both arranged in the up-and-down direction. The upper ends of the first flow guide plate 70 and the second flow guide plate 71 are both hinged to the hinge shaft 72. A telescopic device capable of adjusting the distance between each other is connected between the first flow guide plate 70 and the second flow guide plate 71. The first flow guide plate 70 and the second flow guide plate 71 together form an inverted V-shaped structure. An elastic support device is arranged below the flow guide column 69. The elastic support device includes a support plate 77 abutted between the first flow guide plate 70 and the second flow guide plate 71. The support plate 77 is supported on the inner cylinder wall of the lower cylinder body 67 through a spring 79.

[0041] Thus, it can be seen that Figure 10-13 the shown flow guide column 69 and the above-mentioned Figure 6-9 shown flow guide column 69 are different in structure in that Figure 10-13 an elastic support device is arranged below the shown flow guide column 69, and the two flow guide plates of the flow guide column 69 are not fixed to the inner cylinder wall of the lower cylinder body 67. Except for the above differences, Figure 10-13 the shown flow guide column 69 and Figure 6-9 the shown flow guide column 69 have exactly the same structure.

[0042] The two relatively arranged inner cylinder walls of the lower cylinder body 67 connecting the hinge shaft 72 are referred to as the first inner cylinder wall and the second inner cylinder wall. The lengths of the two flow guiding plates of the flow guiding column 69 are slightly less than the distance between the first inner cylinder wall and the second inner cylinder wall, so that the two flow guiding plates can freely rotate around the hinge shaft 72 without being blocked by the first inner cylinder wall and the second inner cylinder wall. The support plate 77 is in a rectangular plate structure and is arranged horizontally between the lower sides of the two flow guiding plates of the flow guiding column 69. The length direction of the support plate 77 is the same as the length direction of the two flow guiding plates, that is, one long side of the support plate 77 abuts against the lower side of the first flow guiding plate 70, and the other long side of the support plate 77 abuts against the lower side of the second flow guiding plate 71. In order to avoid hard contact between the support plate 77 and the flow guiding plates, rubber pads 78 are provided at the edges of the two long sides of the support plate 77, which can extend the service life of the flow guiding column 69 and the elastic support device.

[0043] The length of the support plate 77 can be equal to or slightly less than the lengths of the two flow guiding plates. Two springs 79 are provided below both ends of the support plate 77, and the two springs 79 are arranged along the width direction of the support plate 77. As Figure 11 shown, it can also be said that one spring 79 is located below the first flow guiding plate 70, and the other spring 79 is located below the second flow guiding plate 71. The upper ends of the two springs 79 below one end of the support plate 77 are fixedly connected to the support plate 77, and the lower ends are respectively fixedly connected to the two bearing plates 80, and the two bearing plates 80 are both fixed on the first inner cylinder wall; the upper ends of the two springs 79 below the other end of the support plate 77 are fixedly connected to the support plate 77, and the lower ends are also respectively fixedly connected to the two bearing plates 80, and the two bearing plates 80 are both fixed on the second inner cylinder wall.

[0044] The distance between the two flow guiding plates of the flow guiding column 69 can be adjusted by the telescopic device, and then the gap between two adjacent flow guiding columns 69 can be adjusted, and thus the time for the cereal grains to pass through the tempering section can be adjusted, that is, the tempering time of the cereal grains can be adjusted.

[0045] In the initial state, a pre-compressive force exists in the spring 79. In this way, when the distance between the two flow guiding plates of the flow guiding column 69 is adjusted to be larger through the telescopic device, the spring 79 elongates. Then the spring 79 pushes the support plate 77 to move upward until the support plate 77 abuts against the lower sides of the two flow guiding plates again; when the distance between the two flow guiding plates of the flow guiding column 69 is made smaller, first press the support plate 77 downward to compress the spring 79, and then make the distance between the two flow guiding plates of the flow guiding column 69 smaller through the telescopic device. After the distance between the two flow guiding plates reaches the required value, release the support plate 77. Then the spring 79 elongates, and the spring 79 pushes the support plate 77 to move upward until the support plate 77 abuts against the lower sides of the two flow guiding plates again. Thus, it can be seen that no matter how large the distance between the two flow guiding plates of the flow guiding column 69 is, that is, no matter how large the included angle γ between the two flow guiding plates of the flow guiding column 69 is, under the action of the spring 79, the support plate 77 always abuts against the lower sides of the two flow guiding plates to achieve the function of supporting the two flow guiding plates.

[0046] When the cereal grains fall through the gap between two adjacent flow guiding columns 69, for each flow guiding column 69, the cereal grains will push the first flow guiding plate 70 in the direction of the second flow guiding plate 71, and at the same time the cereal grains will also push the second flow guiding plate 71 in the direction of the first flow guiding plate 70. If the thrusts of the cereal grains on both sides of the flow guiding column 69 are equal, the whole formed by the two flow guiding plates and the telescopic device will not rotate around the hinge shaft 72; if the thrusts of the cereal grains on both sides of the flow guiding column 69 are not equal, then the whole formed by the two flow guiding plates and the telescopic device will have a tendency to rotate around the hinge shaft 72. That is, when the thrust of the cereal grains acting on the first flow guiding plate 70 is larger, the whole formed by the two flow guiding plates and the telescopic device has a tendency to rotate around the hinge shaft 72 from the first flow guiding plate 70 to the second flow guiding plate 71. When the thrust of the cereal grains acting on the second flow guiding plate 71 is larger, the whole formed by the two flow guiding plates and the telescopic device has a tendency to rotate around the hinge shaft 72 from the second flow guiding plate 71 to the first flow guiding plate 70. However, since the two springs 79 under each end of the support plate 77 are arranged along the width direction of the support plate 77, that is, one spring 79 is located under the first flow guiding plate 70 and the other spring 79 is located under the second flow guiding plate 71. That is to say, the four springs 79 are respectively located at the four corners of the support plate 77, so that the support plate 77 can always maintain a horizontal support state. In this way, even if the whole formed by the two flow guiding plates and the telescopic device has a tendency to rotate around the hinge shaft 72, under the blocking action of the support plate 77, this whole will not rotate around the hinge shaft 72, or only rotate by a small angle, so that the gap between two adjacent flow guiding columns 69 will not change greatly, thus not affecting the fall of the cereal grains. After the cereal grains have fallen, under the action of the spring 79, the support plate 77 and the whole formed by the two flow guiding plates and the telescopic device return to the original state again.

[0047] In summary, Figure 10-13 For the shown flow guiding column 69, the distance between the two flow guiding plates of the flow guiding column 69 can be adjusted through the telescopic device, thereby the gap between two adjacent flow guiding columns 69 can be adjusted, and further the time for the cereal grains to pass through the tempering section can be adjusted. After the distance between the two flow guiding plates of the flow guiding column 69 is adjusted to the required value, under the action of the spring 79, the support plate 77 will support the adjusted positions of the two flow guiding plates, so that the two flow guiding plates are always in an inverted V shape, that is, the support plate 77 will limit the position of the flow guiding column 69 to prevent the whole formed by the two flow guiding plates and the telescopic device from rotating around the hinge shaft 72 to change the position of the flow guiding column 69. That is to say, the gap between two adjacent flow guiding columns 69 will not change or only change slightly, so that the cereal grains can smoothly pass through the tempering section.

[0048] The drying tower (not shown in the figure) using the above tempering section in the present utility model includes a cylindrical drying tower body arranged vertically. The upper cylinder 66 of the tempering section is fixedly arranged on the inner cylinder wall of the drying tower body, which is the specific implementation manner for the above upper cylinder 66 to be fixedly arranged inside the drying tower. The drying tower body is specifically a cylindrical structure, and the upper cylinder 66 of the tempering section is also a cylindrical structure, and the outer diameter of the upper cylinder 66 is equal to the inner diameter of the drying tower body, so that the upper cylinder 66 can be closely attached and fixedly arranged on the inner cylinder wall of the drying tower body.

[0049] The difference between the tempering section of the present utility model and the drying tower using the same and the prior art lies in that the gap between two adjacent flow guiding columns 69 in the tempering section of the present utility model can be adjusted. That is, the flow guiding column 69 includes a hinge shaft 72, a first flow guiding plate 70 and a second flow guiding plate 71. Both the first flow guiding plate 70 and the second flow guiding plate 71 are hinged on the hinge shaft 72. In this way, the distance between the first flow guiding plate 70 and the second flow guiding plate 71 can be adjusted by a telescopic device (during this process, both flow guiding plates rotate around the hinge shaft 72). When the distance between the two flow guiding plates is adjusted to be larger, the gap between two adjacent flow guiding columns 69 becomes smaller, resulting in a longer tempering time for cereal grains; on the contrary, when the distance between the two flow guiding plates is adjusted to be smaller, the gap between two adjacent flow guiding columns 69 becomes larger, resulting in a shorter tempering time for cereal grains. After the distance between the two flow guiding plates of each flow guiding column 69 is adjusted in place, the two flow guiding plates can be detachably and fixedly connected to the inner barrel wall of the lower barrel 67 (the purpose of the detachable and fixed connection is to facilitate the next adjustment). Of course, it is also possible not to fix the two flow guiding plates on the inner barrel wall of the lower barrel 67, but to add an elastic support device to support the positions of the two flow guiding plates. The above two methods can both keep the positions of the two flow guiding plates after adjustment in place, so that cereal grains can fall through the gap between two adjacent flow guiding columns 69. It can be seen that the present utility model can adjust the tempering time of different types of cereal grains, so it can be applied to the drying operation of all types of cereal grains.

[0050] It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "middle", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0051] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0052] The embodiments described above are only used to describe the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model should fall within the protection scope determined by the claims of the present utility model.

Claims

1. A slow recovery section, characterized in that: It comprises an upper cylinder and a lower cylinder which are fixedly connected. The upper cylinder is located above the lower cylinder. The upper cylinder is used to be fixed inside the drying tower. The lower cylinder is a square cylinder structure. A plurality of horizontally arranged flow guide columns are arranged in the cylinder cavity of the lower cylinder. The plurality of flow guide columns are parallel to each other and arranged at intervals. The guide column includes a hinge shaft, a first guide plate and a second guide plate, the two ends of the hinge shaft are respectively fixedly connected to the two oppositely arranged inner cylinder walls of the lower cylinder, the first guide plate and the second guide plate are arranged from top to bottom, the upper ends of the first guide plate and the second guide plate are hinged on the hinge shaft, a telescopic device capable of adjusting the distance between the first guide plate and the second guide plate is connected between the first guide plate and the second guide plate, the first guide plate and the second guide plate are both detachable and fixedly connected to the two oppositely arranged inner cylinder walls of the lower cylinder, and the first guide plate and the second guide plate together form an inverted V-shaped structure.

2. The slow-release section according to claim 1, characterized in that: The telescopic device includes a first rod, a second rod and an annular buckle, and a first threaded hole and a second threaded hole arranged opposite to each other are provided on the annular wall of the annular buckle. One end of the first rod is threadedly connected in the first threaded hole, and the other end of the first rod is hinged on the first guide plate. One end of the second rod is threadedly connected in the second threaded hole, and the other end of the second rod is hinged on the second guide plate.

3. A slow recovery section, characterized in that: It comprises an upper cylinder and a lower cylinder which are fixedly connected. The upper cylinder is located above the lower cylinder. The upper cylinder is used to be fixed inside the drying tower. The lower cylinder is a square cylinder structure. A plurality of horizontally arranged flow guide columns are arranged in the cylinder cavity of the lower cylinder. The plurality of flow guide columns are parallel to each other and arranged at intervals. The guide column includes a hinge shaft, a first guide plate and a second guide plate, the two ends of the hinge shaft are respectively fixedly connected to two oppositely arranged inner cylinder walls of the lower cylinder, the first guide plate and the second guide plate are arranged from top to bottom, the upper ends of the first guide plate and the second guide plate are hinged on the hinge shaft, a telescopic device capable of adjusting the distance between the first guide plate and the second guide plate is connected between the first guide plate and the second guide plate, the first guide plate and the second guide plate together form an inverted V-shaped structure, an elastic support device is provided under the guide column, the elastic support device includes a support plate abutting between the first guide plate and the second guide plate, and the support plate is supported on the inner cylinder wall of the lower cylinder by a spring.

4. The slow-release section according to claim 3 is characterized in that: The telescopic device includes a first rod, a second rod and an annular buckle, and a first threaded hole and a second threaded hole arranged opposite to each other are provided on the annular wall of the annular buckle. One end of the first rod is threadedly connected in the first threaded hole, and the other end of the first rod is hinged on the first guide plate. One end of the second rod is threadedly connected in the second threaded hole, and the other end of the second rod is hinged on the second guide plate.

5. A drying tower using the slow recovery section according to any one of claims 1 to 4, characterized in that: It comprises a vertically arranged cylindrical drying tower body, and the upper cylinder of the slow recovery section is fixed on the inner cylinder wall of the drying tower body.

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