Dust removal device and grain drying machine

Abstract

The utility model relates to a dust removal device, which comprises a dust removal shell, a dust removal cavity, a dust removal cavity, a dust removal cavity, a dust removal cavity, a dust removal cavity and a dust removal cavity, and the dust removal cavity is communicated with the dust removal cavity; two inclined plates which are symmetrically arranged are arranged in the dust removal cavity; the two inclined plates are respectively arranged below the feeding hole and the dust removal hole; the discharging port is located in the bottom of the dust removal shell and located between the two inclined plates. The projecting disc assembly is arranged on the dust removal shell; the throwing disc assembly comprises a material throwing disc, and the material throwing disc is arranged below the discharging port. According to the dust removal device, the feeding port and the dust removal port are oppositely arranged, so that the risk that grains and grains are extracted out is reduced, and the reliability is improved. And the grain after dust removal treatment is uniformly scattered in a drying bin of the grain drying machine in cooperation with the material throwing disc located below the discharging opening, tilting force is not prone to being generated, and the risks that a main body of the drying machine inclines and collapses are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal in grain drying, in particular to a dust removal device and a grain dryer. Background Art

[0002] After harvesting, grains are usually dried for easy storage. Grain drying mechanization technology uses machinery as the main means, adopts corresponding processes and technical measures, and artificially controls factors such as temperature and humidity. It reduces the moisture content in grains without damaging the quality of grains, so that they meet national safety storage standards. Grain drying mechanization technology has changed the long-standing tradition of drying grains by simply relying on natural sunlight on the drying field, and has taken another step towards the full realization of agricultural mechanization and modernization.

[0003] Dryers have the characteristics of simple structure, fast drying efficiency and good drying quality. Most dryers adopt a tower box structure, which allows the grain to flow from top to bottom through the drying chamber and mix with hot air in the drying chamber, thereby achieving the effect of removing moisture from the surface and inside of the grain. Therefore, dryers are widely used in grain drying.

[0004] Various agricultural harvesting machines also quickly flocked to farmland, greatly improving the efficiency of manual harvesting. People no longer stick to drying the crops themselves (here refers to drying crops in the sun with natural light, which not only takes up space, but is also time-consuming and laborious).

[0005] Now, most of the grain harvested from the field is sold directly to the grain station, and then dried in the drying center. Such grain not only has a high moisture content, but also contains a lot of impurities such as dust. When drying in the dryer, it is prone to the risk of adhesion and blockage. The appearance of the grain after drying is also relatively dirty and poor. The dust removal system of the commonly used chute dryer is installed in the middle of the chute to achieve the dust removal effect. This type of dust removal structure is easy to extract grain, and the grain is unevenly stacked after falling, which is easy to generate a tilting force, causing the main body of the dryer to tilt and there is a risk of collapse. Utility Model Content

[0006] The utility model provides a dust removal device and a grain dryer to solve the technical problems that the existing dust removal mechanism is arranged in the middle of a grain chute, which makes it easy for grain to be drawn out, and the grain is unevenly piled up after falling, which easily generates a tilting force, causing the main body of the dryer to tilt and there is a risk of collapse.

[0007] The utility model discloses a dust removal device, which includes a dust removal shell and a disk assembly. The dust removal shell includes a dust removal chamber, a feed port, a discharge port, and a dust removal port. The feed port, the discharge port, and the dust removal port are all connected to the dust removal chamber, and the feed port and the dust removal port are both located at the top of the dust removal shell; two symmetrically arranged inclined plates are arranged in the dust removal chamber, and the two inclined plates are respectively arranged below the feed port and the dust removal port; the discharge port is located at the bottom of the dust removal shell and between the two inclined plates. The disk assembly is arranged on the dust removal shell; the disk assembly includes a material throwing plate, and the material throwing plate is arranged below the discharge port.

[0008] Furthermore, a distance between one end of the two inclined plates close to the top of the dust removal shell is greater than a distance between one end of the two inclined plates close to the bottom of the dust removal shell.

[0009] Furthermore, the dust removal port is provided with a dust removal pipe in a tapered shape, and the dust removal pipe is provided with a fan.

[0010] Furthermore, the discharge port is funnel-shaped.

[0011] Furthermore, the spinner assembly also includes a motor and a rotating shaft, the motor is arranged on the top of the dust removal shell; the rotating shaft passes through the dust removal shell; one end of the rotating shaft is connected to the output end of the motor, and the other end of the rotating shaft is detachably connected to the spinner.

[0012] Furthermore, the spinning disc assembly also includes a reducer, which is arranged between the motor and the rotating shaft.

[0013] Furthermore, guide fins are provided at the edge of the material throwing tray.

[0014] Furthermore, the angle between the inclined plate and the top of the dust removal shell is 40° to 60°.

[0015] Furthermore, an inspection window is provided on the side wall of the dust removal shell.

[0016] The utility model also discloses a grain dryer, which comprises a dust removal device as described in any one of the above embodiments, and the dust removal device is arranged on the top of a drying bin of the grain dryer.

[0017] The dust removal device and grain dryer provided by the utility model can achieve the following technical effects:

[0018] 1. The dust removal device of the utility model reduces the risk of grains and food being drawn out by arranging the feed port and the dust removal port opposite to each other, thereby improving reliability. The dust removal plate located below the discharge port is used to evenly scatter the grains after dust removal in the drying bin of the grain dryer, which is not easy to generate tilting force and reduces the risk of the main body of the dryer being skewed or collapsed.

[0019] 2. The dust removal device disclosed in the utility model effectively integrates the functions of receiving grains, absorbing dust and impurities, and evenly spreading grains through a unique cabin structure design. The dust removal device is easy to install and has high reliability, and can be applied to grain dryers that use a chute on the top to transport grains.

[0020] The above general description and the following description are merely exemplary and explanatory and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements, and wherein:

[0022] Figure 1 It is an exploded schematic diagram of an embodiment of a dust removal device of the utility model;

[0023] Figure 2 It is a partial cross-sectional schematic diagram of an embodiment of a dust removal device of the utility model;

[0024] Figure 3 It is a schematic diagram of an embodiment of a disk assembly of a dust removal device of the utility model;

[0025] Figure 4 It is a schematic diagram of an embodiment of a grain dryer of the utility model.

[0026] Reference numerals:

[0027] 1. Dust removal shell; 11. Dust removal chamber; 12. Feed inlet; 13. Dust removal port; 14. Discharge port; 15. Inclined plate; 16. Dust removal pipe; 17. Inspection window; 2. Throwing plate assembly; 21. Motor; 22. Reducer; 23. Rotating shaft; 24. Throwing plate; 25. Stirring blades; 26. Guide vanes; 3. Drying bin; 4. Coupling. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical contents of the embodiments of the utility model in more detail, the implementation of the embodiments of the utility model is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the utility model. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] The terms "first", "second", etc. in the description and claims of the embodiments of the utility model and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances to facilitate the embodiments of the embodiments of the utility model described herein. In addition, the terms "including" and "having" and any of their

[0030] Any variation is intended to cover non-exclusive inclusions.

[0031] In the embodiments of the present utility model, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present utility model and its embodiments, and are not intended to limit the indicated devices, elements or components to have specific directions, or to be constructed and operated in specific directions. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0032] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the utility model can be understood according to specific circumstances.

[0033] Unless otherwise specified, the term "plurality" means two or more and "plurality" means two or more.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0035] like Figure 1 , Figure 2 As shown, the utility model discloses a dust removal device, which includes a dust removal shell 1 and a spinning disc assembly 2. The cross-section of the dust removal shell 1 is trapezoidal, and the top area of ​​the dust removal shell 1 is larger than the bottom area of ​​the dust removal shell 1. A dust removal chamber 11 is constructed inside the dust removal shell 1, a feed port 12 and a dust removal port 13 are constructed at the top of the dust removal shell 1, and a discharge port 14 is constructed at the bottom of the dust removal shell 1, and the discharge port 14, the feed port 12, and the dust removal port 13 are all connected to the dust removal chamber 11. The feed port 12 and the dust removal port 13 are arranged opposite to each other, which reduces the risk of grains and food being extracted and improves reliability. The discharge port 14 is located in the middle of the bottom of the dust removal shell 1, and the discharge port 14 is funnel-shaped. The two side walls located at both ends of the length direction of the dust removal shell 1 can be regarded as inclined plates 15, and an angle α is formed between the inclined plate 15 and the top of the dust removal shell 1, and the value range of the angle α is 40° to 60°. The distance between the ends of the two inclined plates 15 close to the top of the dust removal housing 1 is greater than the distance between the ends of the two inclined plates 15 close to the bottom of the dust removal housing 1. The discharge port 14 is located between the ends of the two inclined plates 15 close to the bottom of the dust removal housing 1. The two inclined inclined plates 15 cooperate with the funnel-shaped discharge port 14 to facilitate the grain to be more

[0036] The good ones gather at the discharge port 14 and smoothly enter the throwing tray 24 of the throwing tray assembly 2.

[0037] Among them, one inclined plate 15 is located below the feed port 12, and the inclined arrangement of the inclined plate 15 can assist in dust removal of the grains that enter the dust removal chamber 11 in a free-falling manner through the feed port 12. Another inclined plate 15 is located below the dust removal port 13, and the inclined arrangement of the inclined plate 15 can assist in dust removal of some of the grains that enter the dust removal chamber 11.

[0038] Alternatively, if Figure 1 As shown, a dust removal pipe 16 is provided at the dust removal port 13 of the dust removal shell 1. The dust removal pipe 16 is in a tapered shape, that is, the inner diameter of the end of the dust removal pipe 16 close to the dust removal shell 1 is larger than the inner diameter of the end of the dust removal pipe 16 away from the dust removal shell 1. A fan is provided at the end of the dust removal pipe 16 away from the dust removal shell 1. The dust removal pipe 16 with such a structure makes it easy for the dust removal pipe 16 to cooperate with the fan to generate negative pressure to extract dust and impurities generated by the falling of grain in the dust removal chamber 11, and to remove dust from the grain.

[0039] Alternatively, if Figure 1 , Figure 2As shown, a square window is constructed on the side wall of the dust removal housing 1, and an inspection window 17 is arranged at the window. The inspection window 17 is made of transparent material, so that it is convenient for maintenance personnel to directly observe and inspect the situation in the dust removal chamber 11. For example, the inspection window 17 is made of organic glass. The inspection window 17 is made of metal material, so that it is convenient for maintenance personnel to inspect the dust removal chamber 11. For example, the inspection window 17 is made of stainless steel. There are fixing holes at the four corners of the square window, and there are also fixing holes at the corresponding positions of the four corners of the inspection window 17. The inspection window 17 is covered on the square window, and bolts are sequentially penetrated through the fixing holes of the inspection window 17 and the fixing holes of the dust removal housing 1, so as to realize the detachable connection between the inspection window 17 and the dust removal housing 1.

[0040] like Figure 1 , Figure 2 As shown, the disk assembly 2 is arranged on the dust removal housing 1. The disk assembly 2 includes a motor 21, a reducer 22, a rotating shaft 23, and a material throwing disk 24. One end of the rotating shaft 23 enters the dust removal chamber 11 of the dust removal housing 1, and the other end of the rotating shaft 23 is located outside the dust removal chamber 11 and directly below the discharge port 14. The rotating shaft 23 and the discharge port 14 are arranged coaxially. The input shaft of the reducer 22 and its output shaft are perpendicular to each other. The reducer 22 is arranged at the top of the dust removal housing 1, and the reducer 22 is located between the feed port 12 and the dust removal port 13. The output shaft of the reducer 22 passes through the top of the dust removal housing 1 and enters the dust removal chamber 11, and the end of the rotating shaft 23 located in the dust removal chamber 11 is detachably connected to each other through a coupling 4. The motor 21 is arranged at the top of the dust removal housing 1, and the output shaft of the motor 21 is detachably connected to the input shaft of the reducer 22 through a coupling. One end of the rotating shaft 23 below the material outlet 14 is fixedly connected to the material throwing tray 24 and is located at the center of the material throwing tray 24 .

[0041] Alternatively, if Figure 3 As shown, a plurality of stirring blades 25 are also provided on the rotating shaft 23 . The plurality of stirring blades 25 are evenly arranged around the rotating shaft 23 , and the plurality of stirring blades 25 are all located in the dust removal chamber 11 .

[0042] The stirring blade 25 is detachably mounted on the rotating shaft 23 by means of screws. When the grain enters the dust removal chamber 11 from the feed port 12, the stirring blade 25 will break up the grain and assist the dust removal shell 1 in dust removal, thereby increasing the dust removal effect of the grain.

[0043] Alternatively, if Figures 1 to 3 As shown, a plurality of guide fins 26 are provided at the edge of the material throwing tray 24. The cross-sectional shape of the guide fins 26 is C-shaped. The plurality of guide fins 26 are evenly arranged around the material throwing tray 24, so that the grain in the material throwing tray 24 can be more evenly scattered into the drying bin of the grain dryer.

[0044] like Figure 1 , Figure 2 , Figure 4 As shown, the utility model also discloses a grain dryer, which includes a dust removal device as described in any of the above embodiments. The dust removal device is arranged at the top of the drying bin 3 of the grain dryer. The discharge port 14 of the dust removal device is located in the drying bin 3, and the discharge port 14 is located at the top of the drying bin 3. The grain chute of the dryer is directly inserted into the feed port 12 of the dust removal device without the need for flange connection.

[0045] Application scenario of an exemplary embodiment:

[0046] like Figures 1 to 4 As shown, the dust removal device is first installed on the top of the drying bin 3 of the grain dryer. The discharge port 14 of the dust removal housing 1 of the dust removal device and the spinner assembly 2 are both located in the drying bin 3, and the discharge port 14 is located at the top of the drying bin 3. The grain chute of the dryer is directly inserted into the feed port 12 of the dust removal device without flange connection, which is convenient and quick.

[0047] During the drying process of grain, the grain is lifted to the top by a hoist, and then the grain slides downward by gravity and enters the dust removal chamber 11 through the feed port 12 of the dust removal housing 1. At the same time, the fan on the dust removal pipe 16 is in operation and generates negative pressure to extract dust and impurities in the dust removal chamber 11. After the grain enters the dust removal chamber 11, it will first fall on the inclined plate 15 located below the feed port 12 and splash, and the grain is dusted by beating. After that, part of the grain enters the funnel-shaped discharge port 14 along the inclined plate 15 located below the feed port 12. Another part of the grain splashes and is hit and broken up by the stirring blades 25 on the rotating shaft 23, and is dusted again. Part of the scattered grain falls back to the inclined plate 15 located below the feed port 12 and enters the discharge port 14, and another part of the grain falls on the inclined plate 15 located below the dust removal port 13, which is hit again for dust removal and enters the discharge port 14. The grains that have undergone multiple dust removal processes enter the throwing tray 24 through the discharge port 14 , and are more evenly scattered into the drying bin of the grain dryer along the C-shaped guide fins 26 at the edge of the discharge port 14 .

[0048] The above description and the accompanying drawings fully illustrate the embodiments of the utility model so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the utility model are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. A dust removal device, characterized in that: include: A dust removal shell (1) comprises a dust removal chamber (11), a feed port (12), a discharge port (14) and a dust removal port (13); the feed port (12), the discharge port (14) and the dust removal port (13) are all in communication with the dust removal chamber (11), and the feed port (12) and the dust removal port (13) are both located at the top of the dust removal shell (1); two symmetrically arranged inclined plates (15) are provided in the dust removal chamber (11), and the two inclined plates (15) are respectively arranged below the feed port (12) and the dust removal port (13); the discharge port (14) is located at the bottom of the dust removal shell (1) and between the two inclined plates (15); A throwing disc assembly (2) is arranged on the dust removal housing (1); the throwing disc assembly (2) comprises a throwing disc (24), and the throwing disc (24) is arranged below the discharge port (14).

2. The dust removal device according to claim 1, characterized in that: The distance between the ends of the two inclined plates (15) close to the top of the dust removal shell (1) is greater than the distance between the ends of the two inclined plates (15) close to the bottom of the dust removal shell (1).

3. The dust removal device according to claim 1, characterized in that: The dust removal port (13) is provided with a dust removal pipe (16) in a constricted shape, and the dust removal pipe (16) is provided with a fan.

4. The dust removal device according to claim 1, characterized in that: The discharge port (14) is funnel-shaped.

5. The dust removal device according to any one of claims 1 to 4, characterized in that: The spinner assembly (2) further comprises: A motor (21) is arranged on the top of the dust removal housing (1); A rotating shaft (23) passes through the dust removal housing (1); one end of the rotating shaft (23) is connected to the output end of the motor (21), and the other end of the rotating shaft (23) is detachably connected to the material throwing tray (24).

6. The dust removal device according to claim 5, characterized in that: The spinner assembly (2) further comprises: The reducer (22) is arranged between the motor (21) and the rotating shaft (23).

7. The dust removal device according to claim 1, characterized in that: A guide wing (26) is provided at the edge of the material rejection tray (24).

8. The dust removal device according to claim 1, characterized in that: The angle between the inclined plate (15) and the top of the dust removal housing (1) is 40° to 60°.

9. The dust removal device according to claim 1, characterized in that: An inspection window (17) is provided on the side wall of the dust removal housing (1).

10. A grain dryer, characterized in that: include: The dust removal device as described in any one of claims 1 to 9 is arranged on the top of the drying bin (3) of the grain dryer.

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