Conveying type grain drying device

Abstract

The utility model discloses a transmission type grain drying device which comprises a drying groove and a hot air device, and the hot air device is arranged at one end of the drying groove and used for providing hot air for the drying groove. The drying groove comprises a groove body, a drying conveying belt and a hot air channel. The hot air channel is arranged at the bottom of the drying conveying belt in parallel, and a plurality of hot air outlet holes are formed in the upper surface of the hot air channel in the length direction at intervals. A discharging tail door is arranged at the tail end of the tank body and protrudes in the horizontal direction relative to the tank body, so that the discharging tail door is suspended; the hot air device comprises a plurality of heating pipes, a fan and a first horn cover; the first horn cover comprises a rectangular large-opening connecting end and a circular small-opening connecting end; the large-opening connecting end is connected with the rectangular frame body, and the small-opening connecting end is connected with an air inlet of the fan. According to the conveying type grain drying device, the grain drying efficiency can be improved, and discharging operation is convenient and fast.

Description

Technical Field

[0001] This application relates to grain processing equipment, specifically a conveyor-type grain drying device. Background Technology

[0002] In grain processing, freshly harvested grain requires a rigorous drying and dehydration process before being stored to prevent spoilage due to high moisture content. Existing grain drying equipment mainly includes continuous dryers, tower dryers, and mesh belt dryers. Among these, mesh belt dryers achieve drying by evenly distributing grain through a mesh belt and allowing hot air to penetrate. While simple to operate, they are relatively large and suffer from technical problems such as low hot air volume and long drying times. Therefore, improving the air volume and reducing the drying time of mesh belt dryers has become a pressing technical challenge in this field. Utility Model Content

[0003] In view of the above problems, this application provides a conveyor-type grain drying device to solve the technical problems of small air volume and long drying time of mesh belt dryers.

[0004] To achieve the above objectives, this application provides a conveyor-type grain drying device, comprising: a drying trough and a hot air device, wherein the hot air device is disposed at one end of the drying trough and is used to provide hot air to the drying trough;

[0005] The drying tank includes: a tank body, a drying conveyor belt, and a hot air channel;

[0006] The drying conveyor belt is arranged inside the tank along the length of the tank and extends from the first end to the last end of the tank; ventilation holes are evenly arranged on the surface of the drying conveyor belt.

[0007] The hot air channel is arranged parallel to the bottom of the drying conveyor belt, and the upper surface of the hot air channel is provided with a plurality of hot air outlets at intervals along the length direction. The hot air comes into contact with the grain after passing through the hot air outlets and the ventilation holes in sequence.

[0008] The tail end of the trough is provided with a discharge tail gate, which protrudes horizontally relative to the trough, so that the discharge tail gate is suspended in the air, and a receiving conveyor belt is placed below the discharge tail gate.

[0009] The hot air device includes: multiple heating pipes, a fan, and a first horn cover;

[0010] Multiple heating tubes are fixed parallel to each other within a rectangular frame; the first horn cover includes a rectangular large-mouth connecting end and a circular small-mouth connecting end; the large-mouth connecting end is connected to the rectangular frame, the small-mouth connecting end is connected to the air inlet of the fan, and the air outlet of the fan is connected to the air inlet of the hot air channel.

[0011] Furthermore, the hot air device also includes a second horn cover, the smaller end of which is connected to the air outlet of the fan, and the larger end of which is connected to the air inlet of the hot air channel.

[0012] Furthermore, the hot air device also includes an outer frame, which includes multiple columns and crossbars connecting adjacent columns. The rectangular frame is fixed to the top of the outer frame, and the fan is fixed to the bottom of the outer frame.

[0013] Furthermore, the upper part of the tail end of the drying tank is provided with a horizontally forward-protruding protrusion, the protrusion is provided with a discharge port, and the top of the discharge tail gate is hinged to the upper part of the discharge port.

[0014] Furthermore, the lower two sides of the discharge tailgate are provided with latches to lock the discharge tailgate.

[0015] Furthermore, an electrical control cabinet is provided in the middle of the protrusion.

[0016] Furthermore, the drying conveyor belt is provided with conveyor belt rollers at both ends, and the protrusion is provided with tension adjustment grooves extending along the length direction. The two ends of the conveyor belt roller at the tail end are adjustablely positioned within the tension adjustment grooves.

[0017] Furthermore, the fan is a volute centrifugal fan, including a volute, an impeller, and a drive motor, wherein the impeller is disposed inside the volute and is connected to the drive motor in a driving connection.

[0018] Unlike existing technologies, the above-mentioned conveyor-type grain drying device includes a drying trough and a hot air device. In the hot air device, multiple heating pipes are fixed parallel to each other within a rectangular frame and connected to a fan via a first horn cover. The larger end of the first horn cover connects to the rectangular frame, and the smaller end connects to the fan. Therefore, the first horn cover allows the fan to connect to a larger rectangular frame, and the addition of more heating pipes increases the hot air temperature and drying efficiency. Furthermore, in this technical solution, a hot air channel is arranged parallel below the drying conveyor belt, allowing hot air to enter the entire conveyor belt evenly and improving the uniformity of hot air distribution. Also in this technical solution, the discharge gate at the tail end of the trough is suspended, facilitating the placement of the receiving conveyor belt directly below the discharge gate, thus allowing for convenient output of the dried grain and improving the ease of drying and discharge.

[0019] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0020] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0021] In the accompanying drawings of the instruction manual:

[0022] Figure 1 This is a side view of the conveyor-type grain drying apparatus described in a specific embodiment;

[0023] Figure 2 This is a top view of the conveyor-type grain drying apparatus described in the specific embodiment;

[0024] Figure 3 This is a side view of the discharge end of the conveyor-type grain drying device described in the specific embodiment;

[0025] Figure 4 This is a front view of the discharge end of the conveyor-type grain drying device described in the specific embodiment;

[0026] Figure 5 This is a schematic diagram of the hot air device described in a specific embodiment;

[0027] Figure 6 This is a top view of the hot air device described in the specific embodiment;

[0028] Figure 7 The diagram shows the unfolded view of the first speaker cover in a specific embodiment;

[0029] The reference numerals used in the above figures are explained as follows:

[0030] 1. Drying tank; 2. Hot air device; 3. Electrical control cabinet; 4. Material receiving conveyor belt;

[0031] 11. Drying conveyor belt; 12. Hot air passage; 13. Protrusion; 14. Discharge tailgate;

[0032] 21. Heating element; 22. Fan; 23. Second horn cover; 24. First horn cover; 25. Outer frame;

[0033] 101. Inclined plate; 111. Conveyor belt roller;

[0034] 112. Tension adjustment groove; 141. Hinge; 142. Lock;

[0035] 240. Splicing sub-board; 241. Bending section; Detailed Implementation

[0036] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0037] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0038] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0039] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0040] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0041] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0042] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0043] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0044] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0045] Please see Figures 1 to 7 This embodiment provides a conveyor-type grain drying device. This conveyor-type grain drying device can be used to dry various grains such as rice, wheat, and sorghum, causing the moisture in the grains to evaporate. This conveyor-type grain drying device has advantages such as high drying efficiency, uniform hot air distribution, and convenient discharge operation.

[0046] like Figure 1 and Figure 2 As shown, the conveyor-type grain drying device includes a drying trough 1 and a hot air device 2. The hot air device 2 is located at one end of the drying trough 1 and is used to provide hot air to the drying trough 1. The drying trough 1 is used to convey grain that is being dried. The grain is dried while being conveyed in the drying trough 1. The drying trough 1 includes a trough body, a drying conveyor belt 11, and a hot air channel 12.

[0047] The drying conveyor belt 11 is arranged along the length of the trough, extending from the first end to the last end. Inclined plates 101 are respectively provided at the front end and both sides of the trough. The inclined plates 101 are tilted and their bottoms are close to the drying conveyor belt, allowing the grain to slide onto the drying conveyor belt and preventing it from accumulating around the trough. Ventilation holes are evenly distributed on the surface of the drying conveyor belt. The hot air channel 12 is arranged parallel to the bottom of the drying conveyor belt, and multiple hot air outlets are spaced along the length of the upper surface of the hot air channel 12. Hot air passes through the hot air outlets and the ventilation holes in sequence before contacting the grain. The drying conveyor belt can be a metal mesh conveyor belt with evenly distributed ventilation holes on its surface. Conveyor rollers are provided at both ends of the drying conveyor belt, and multiple evenly distributed support rollers are provided in the middle. At least one conveyor roller is connected to a power unit, which drives the conveyor roller to rotate, thereby driving the drying conveyor belt.

[0048] The hot air channel 12 is located directly below the drying conveyor belt and is parallel to it. The hot air channel 12 is an independent channel with a length approximately equal to that of the drying conveyor belt, ensuring that the entire conveyor belt receives hot air. The hot air enters the drying conveyor belt from bottom to top through the hot air channel 12, passes through ventilation holes on the conveyor belt, and contacts the grain, thus drying it. The grain moves slowly on the drying conveyor belt, allowing sufficient time for drying. In some cases, to extend the drying time, the drying conveyor belt operates intermittently, moving forward a certain distance and then stopping to allow the grain to dry for a period before moving forward again. During each forward movement of the drying conveyor belt, new grain can be fed into the front end, and the dried grain is discharged from the drying trough 1 at the rear end, thus achieving a continuous drying process.

[0049] A discharge gate 14 is provided at the tail end of the trough. The discharge gate 14 protrudes horizontally relative to the trough, making it suspended in the air. A receiving conveyor belt 4 is placed below the discharge gate 14. The tail end of the drying conveyor belt is close to the discharge gate 14. When discharge is required, the discharge gate 14 is opened, and the dried grain is output by the drying conveyor belt and discharged from the discharge gate 14 into the receiving conveyor belt 4. Figure 3 As shown, in this embodiment, a horizontally protruding protrusion 13 is provided at the upper part of the tail end of the drying trough 1. The protrusion 13 is provided with a discharge port, and the top of the discharge tail gate 14 is hinged to the upper part of the discharge port by a hinge 141. The discharge tail gate 14 at the tail end of the trough is suspended, so it is convenient to place the material receiving conveyor belt directly below the discharge tail gate 14, thereby facilitating the output of dried grains and improving the convenience of drying and discharging.

[0050] In this embodiment, multiple drying troughs 1 can be set up, and a corresponding hot air device 2 can be configured for each drying trough 1. Each drying trough 1 is arranged side by side parallel to each other, and a receiving conveyor belt is used to receive the grains dried by multiple drying troughs 1. The discharge gates 14 of each drying trough 1 are arranged side by side along the same straight line. The length direction of the receiving conveyor belt is perpendicular to the length direction of the drying trough 1, so that the receiving conveyor belt is located directly below each discharge gate 14. Therefore, one receiving conveyor belt can simultaneously receive the grains discharged from multiple drying troughs 1.

[0051] like Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, the hot air device 2 includes: multiple heating pipes 21, a fan 22, and a first horn cover 24. The multiple heating pipes 21 are fixed parallel to each other within a rectangular frame; the first horn cover 24 includes a rectangular large-mouth connecting end and a circular small-mouth connecting end; the large-mouth connecting end is connected to the rectangular frame, the small-mouth connecting end is connected to the air inlet of the fan 22, and the air outlet of the fan 22 is connected to the air inlet of the hot air channel 12. In this embodiment, the fan 22 is a volute centrifugal fan 22, which includes a volute, an impeller, and a drive motor. The impeller is disposed within the volute and is driven by the drive motor. In other embodiments, the fan 22 may also be an axial flow fan 22, which includes a fan casing, an impeller, and a motor. The impeller is rotatably disposed within the fan casing and is driven by the motor. One end of the fan casing is the air inlet, and the other end is the air outlet.

[0052] The heating element 21 can be a PCT electric heating element 21, a heating element 21 in a heat pump heating device, or a heating element 21 in a combustion heating device, etc. Both ends of the heating element 21 are fixed to a rectangular frame, which is connected to the fan 22 via a first horn cover 24. Air heated by the heating element 21 is blown by the fan 22 into the hot air channel 12 within the drying chamber 1. Figure 7 The diagram shown is an unfolded view of the first speaker cover 24 in this embodiment. The first speaker cover 24 is formed by splicing two splicing sub-plates 240. The outer side of each splicing sub-plate 240 is a large opening connection end, and the inner side is a small opening connection end. Two bending parts 241 are respectively provided in the splicing sub-plate 240. After bending along the bending parts 241, the two splicing sub-plates are spliced ​​together to form a speaker cover with a rectangular large opening connection end and a circular small opening connection end.

[0053] In this embodiment, the size of the larger opening connecting end of the first horn cover 24 is larger than the size of the smaller opening connecting end. The larger opening connecting end is rectangular, while the smaller opening connecting end can be rectangular or circular. Furthermore, in this embodiment, the larger opening connecting end of the first horn cover 24 is connected to a rectangular frame, and the smaller opening connecting end is connected to the fan 22. Therefore, the fan 22 can be connected to a larger rectangular frame via the first horn cover 24. Adding more heating tubes 21 can increase the temperature of the hot air and improve drying efficiency. In this technical solution, a hot air channel 12 is arranged parallel to the bottom of the drying conveyor belt, allowing hot air to enter the entire drying conveyor belt evenly and improving the uniformity of hot air distribution.

[0054] like Figure 2 and Figure 6 As shown, in this embodiment, the hot air device 2 further includes a second horn cover 23, the small end of the second horn cover 23 is connected to the air outlet of the fan 22, and the large end of the second horn cover 23 is connected to the air inlet of the hot air channel 12.

[0055] The larger opening of the second horn cover 23 is larger than the smaller opening. The second horn cover 23 allows the hot air channel 12 with a wider cross-section to be adapted to the fan 22, thereby allowing the drying conveyor belt to receive hot air over a wider area in the width direction and increasing the hot air distribution area of ​​the drying conveyor belt.

[0056] like Figure 1 and Figure 5 As shown, in this embodiment, the hot air device 2 further includes an outer frame 25, which includes multiple uprights and crossbars connecting adjacent uprights. The rectangular frame is fixed to the top of the outer frame 25, and the fan 22 is fixed to the bottom of the outer frame 25. The uprights and crossbars can be made of metal components such as angle steel, and the uprights and crossbars can be fixedly connected by welding or bolts. The rectangular frame and fan 22 can be fixed to the outer frame 25 by bolts. In this embodiment, using the outer frame 25 in the hot air device 2 and placing the fan 22 at the bottom of the outer frame 25 improves the installation stability of the rectangular frame and fan 22. Furthermore, in this embodiment, the heating pipe 21 and the rectangular frame are positioned directly above the fan 22, facilitating the blowing of heated hot air into the hot air channel 12.

[0057] like Figure 4 As shown, latches 142 are provided on both sides of the lower part of the discharge tailgate 14 to lock the discharge tailgate 14. In this embodiment, the top of the discharge tailgate 14 is hinged, and latches 142 are provided on both sides of the lower part. Therefore, the discharge tailgate 14 can be flipped upward to open, facilitating the downward discharge of dried grains. The latches 142 on both sides of the lower part can reliably lock the discharge tailgate 14 when closed. Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, an electrical control cabinet 3 is provided in the middle of the protrusion 13. The electrical control cabinet 3 is equipped with a controller to control the operation of the hot air device 2 and the drying conveyor belt. This controller is a conventional technology in the art and will not be described in detail here.

[0058] like Figure 1 and Figure 3 As shown, conveyor belt rollers 111 are respectively provided at both ends of the drying conveyor belt. The protrusion 13 is provided with a tension adjustment groove 112 extending along the length direction. The two ends of the conveyor belt roller 111 at the tail end are adjustablely positioned within the tension adjustment groove 112. By adjusting the position of the conveyor rollers within the tension adjustment groove 112, the relative distance between the two conveyor rollers can be adjusted, thereby tensioning the drying conveyor belt.

[0059] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A conveyorized grain drying apparatus, characterized by, include: A drying trough and a hot air device, wherein the hot air device is located at one end of the drying trough and is used to provide hot air to the drying trough; The drying tank includes: a tank body, a drying conveyor belt, and a hot air channel; The drying conveyor belt is arranged inside the tank along the length of the tank and extends from the first end to the last end of the tank; ventilation holes are evenly arranged on the surface of the drying conveyor belt. The hot air channel is arranged parallel to the bottom of the drying conveyor belt, and the upper surface of the hot air channel is provided with a plurality of hot air outlets at intervals along the length direction. The hot air comes into contact with the grain after passing through the hot air outlets and the ventilation holes in sequence. The tail end of the trough is provided with a discharge tail gate, which protrudes horizontally relative to the trough, so that the discharge tail gate is suspended in the air, and a receiving conveyor belt is placed below the discharge tail gate. The hot air device includes: multiple heating pipes, a fan, and a first horn cover; Multiple heating tubes are fixed parallel to each other within a rectangular frame; the first horn cover includes a rectangular large-mouth connecting end and a circular small-mouth connecting end; the large-mouth connecting end is connected to the rectangular frame, the small-mouth connecting end is connected to the air inlet of the fan, and the air outlet of the fan is connected to the air inlet of the hot air channel.

2. The transport-type grain drying apparatus according to claim 1, characterized by The hot air device also includes a second horn cover, the smaller end of which is connected to the air outlet of the fan, and the larger end of which is connected to the air inlet of the hot air channel.

3. The through-corn drying apparatus according to claim 1 or 2, characterized in that, The hot air device also includes an outer frame, which includes multiple columns and crossbars connecting two adjacent columns. The rectangular frame is fixed to the top of the outer frame, and the fan is fixed to the bottom of the outer frame.

4. The transport-type grain drying apparatus according to claim 1, wherein The upper part of the tail end of the drying tank is provided with a horizontally forward-protruding protrusion, and the protrusion is provided with a discharge port. The top of the discharge tail gate is hinged to the top of the discharge port.

5. The transfer grain drying apparatus of claim 4, wherein, The lower part of the discharge tailgate is provided with latches on both sides to lock the discharge tailgate.

6. The transport-type grain drying apparatus according to claim 4, wherein An electrical control cabinet is installed in the middle of the protrusion.

7. The transport-type grain drying apparatus according to claim 4, wherein The drying conveyor belt is provided with conveyor belt rollers at both ends. The protrusion is provided with tension adjustment grooves extending along the length direction. The two ends of the conveyor belt roller at the tail end are adjustablely positioned within the tension adjustment grooves.

8. The transport-type grain drying apparatus according to claim 1, wherein The fan is a volute centrifugal fan, including a volute, an impeller, and a drive motor. The impeller is disposed inside the volute and is connected to the drive motor for transmission.

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