An automatic grading and drying apparatus

Abstract

The application discloses an automatic grading and air-drying device, which comprises a tank body and a grading component arranged in the tank body, wherein the grading component comprises at least two grading mechanisms, the discharging component comprises storage bins equal to or greater than the number of the grading mechanisms, each grading mechanism comprises at least two screen parts arranged in an up-down mode, the screen parts classify materials by the size of the outer diameter, the screen parts of different grading mechanisms do not intersect in the projection on the bottom, and the screen parts of the same grading mechanism classify and drop the materials to the same side of the bottom. The screen parts of each grading mechanism do not intersect in the projection on the bottom, so that the classified materials fall into different areas; a plurality of screen parts can be arranged in each grading mechanism, the screen parts are arranged in an up-down mode and overlap in the projection on the bottom, and the use effect is good in some application scenarios which only need a few times of grading and need to ensure a high screening effect.

Description

Technical Field

[0001] This application relates to the field of air-drying equipment technology, and in particular to an automatic grading air-drying device. Background Technology

[0002] Air drying equipment is a common type of drying equipment used in the food, beverage, and pharmaceutical industries to air dry raw materials. These raw materials, such as grains, often need to be graded, thus leading to the development of air drying devices with grading functions.

[0003] However, when grading and drying raw materials that require fewer grading times and higher grading requirements, the internal cavity of the drying device often limits the ability to perform multiple screenings in a single grading operation, thus ensuring the uniformity of the particles after grading. Utility Model Content

[0004] The purpose of this application is to provide an automatic grading air-drying device.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: an automatic grading and drying device, comprising a tank and the following components disposed within the tank: a grading component, the grading component comprising at least two grading mechanisms; a discharge component comprising storage bins equal to or greater than the number of grading mechanisms; each grading mechanism comprising at least two vertically arranged screening sections; the screening sections grading materials according to their outer diameter; the projections of the screening sections of different grading mechanisms on the bottom surface not intersecting; and the screening sections of the same grading mechanism screening the materials and causing them to fall to the same side of the bottom; a fan component for generating airflow to remove moisture; and a discharge component for temporarily storing and discharging materials.

[0006] Preferably, the screening section is inclined, and each screening section is correspondingly provided with a guide section. The guide section extends from one or both sides of the screening section to the side wall of the tank. The guide section forms an inclination angle from its end toward the screening section, which is greater than the inclination angle of the screening section itself. In the same grading mechanism, the bottom of the upper screening section corresponds to the top surface of the next screening section and / or the guide section to transfer material. At the junction of two grading mechanisms, material is transferred from the screening section of the upper grading mechanism to the screening section and / or the guide section of the next grading mechanism.

[0007] As a preferred embodiment, the length of the guide section is less than or equal to half the length of the screening section, and baffles are provided at the bottom of the top surface of the guide section and on the side of the screening section that does not contact the tank wall.

[0008] As a preferred embodiment, each of the storage bins at the bottom is provided with a lifting structure, which is adapted to repeatedly lift and drop the material located in the storage bin.

[0009] As a preferred embodiment, the lifting structure includes one or more electrically driven rotating blades, the rotating blades being helical.

[0010] As a preferred embodiment, the bottom of the storage silo is provided with an electrically controlled temporary storage structure, which is adapted to seal the bottom of the storage silo and is opened only when drying is complete to discharge the material.

[0011] As a preferred embodiment, the inner cavity of the storage silo includes a top guide chamber and a bottom drying chamber, wherein the drying chamber has a circular cross-section.

[0012] As a preferred embodiment, the fan component is disposed on the side of the tank, and the fan component is adapted to enter the bottom side wall of the drying chamber and exit the top of the tank to form an airflow.

[0013] As a preferred embodiment, multiple diversion plates are equidistantly arranged in the bottom area of ​​the tank, and the multiple diversion plates form multiple storage bins at the bottom of the tank. The screening section of the same grading mechanism discharges the material into the corresponding storage bin directly below.

[0014] As a preferred embodiment, the top of the diverter plate is inverted V-shaped.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: The projections of the screening sections at the bottom of each grading mechanism do not intersect, ensuring that the graded materials fall into different areas. Multiple screening sections can be set up inside each grading mechanism, with the screening sections arranged vertically and their bottom projections overlapping. This method is effective in applications that require only a few gradings but need to ensure a high screening effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application.

[0017] Figure 2 yes Figure 1 A schematic diagram of the corresponding hierarchical components.

[0018] Figure 3 It is a 3D view of the graded components.

[0019] Figure 4 This is a schematic diagram of a flow divider separating storage bins.

[0020] Figure 5 This is a schematic diagram of a storage silo.

[0021] In the diagram: 1. Tank body; 2. Discharge component; 3. Blower component; 4. Grading component; 41. First grading mechanism; 411. Guide section; 412. Screening section; 413. Baffle; 42. Second grading mechanism; 5. Storage bin; 6. Diverter plate; 7. Inverted V-shaped top; 8. Lifting structure. Detailed Implementation

[0022] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0024] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0026] Example: Reference Figures 1 to 5 This embodiment proposes an automatic grading air-drying device, including a tank 1. The tank 1 contains a fan component 2 and a discharge component 2. The fan component 2 is a structure such as a fan or air pump that creates airflow within the tank 1 for air drying. It can also be combined with heating equipment for hot air drying or with refrigeration equipment for low-temperature air drying. The discharge component 2 generally has a function of temporarily storing materials, allowing the materials to remain in the tank 1 for a period of time to fully dry and remove moisture. After drying, the materials are discharged. An electronic control system can be set up to specifically control the drying time and achieve automatic start and stop.

[0027] In this embodiment, the tank 1 is also provided with a grading component 4, which includes at least two grading mechanisms, thus enabling at least two grading operations on the material. For ease of understanding and description, the grading component 4 described below will only include two grading mechanisms.

[0028] Those skilled in the art should know that when multiple screenings are performed in a similar vertical space, the material screened at the front (upper) is generally a small-diameter material, while the material screened at the rear (lower) is generally a large-diameter material. Therefore, the specific screening diameter of the multiple grading mechanisms set up at the top and bottom needs to follow the above rules.

[0029] The discharge component 2 includes a storage bin 5 with a number equal to or greater than the number of grading mechanisms. Each grading mechanism includes at least two screening sections 412 arranged vertically. The screening sections 412 grade materials according to their outer diameter. The projections of the screening sections 412 of different grading mechanisms on the bottom surface do not intersect. The screening sections 412 of the same grading mechanism screen the materials and drop them to the same side of the bottom. When there are two grading mechanisms, the screening sections 412 of the corresponding two grading mechanisms can evenly bisect the projection of the bottom surface of the tank 1. That is, the orthographic projection of the screening section 412 on the bottom of the tank 1 can occupy up to half the area of ​​the orthographic projection of the bottom surface of the tank 1. At this time, one side of the screening section 412 is directly connected to the wall of the tank 1.

[0030] Compared to existing air-drying equipment with grading functions, the bottom projections of the screening sections of each grading mechanism in the air-drying device of this application are non-intersecting, thus ensuring that the graded materials fall into different areas. Furthermore, each grading mechanism can have multiple screening sections, arranged vertically, so their bottom projections overlap. After screening, the material falls through the lowest screening section and falls onto that side for collection and subsequent air-drying. This method is particularly effective in applications requiring only a few grading steps but demanding high screening efficiency. For example, when grading and air-drying soybean raw materials, smaller, shriveled, or small soybean particles are screened, while larger, plump soybean particles are grouped together. The smaller soybean particles can be used for feed, while the larger particles can be used for market distribution.

[0031] The screening section 412 is inclined, and each screening section 412 is provided with a corresponding guide section 411. The guide section 411 extends from one or both sides of the screening section 412 to the side wall of the tank 1. When one side of the screening section 412 is in contact with the wall of the tank 1 (excluding the side of the top of the screening section 412 used for fixing), the guide section 411 only needs to be provided on the side of the screening section 412 that is not in contact with the wall. If neither side of the screening section 412 is in contact with the wall, then two guide sections 411 are provided.

[0032] To facilitate material feeding, the guide portion 411 is formed with an inclination angle that is inclined from the end toward the screening portion 412. This inclination angle is greater than the inclination angle of the screening portion 412 itself. The inclination angle of the guide portion 411 being greater than the inclination angle of the screening portion 412 allows the material located in the guide portion 411 to tilt and move onto the screening portion 412.

[0033] In the same grading mechanism, the bottom of the upper screening section 412 corresponds to the top surface of the next screening section 412 and / or the guide section 411 to transfer materials; at the junction of two grading mechanisms, materials are transferred from the screening section 412 of the upper grading mechanism to the screening section 412 and / or the guide section 411 of the lower grading mechanism.

[0034] If the guide section 411 is too long, for example, extending directly to the bottom of the screening section 412, the material on the guide section 411 may directly enter the next screening section 412 and the guide section 411 from the end, thus preventing screening. Therefore, in this embodiment, the length of the guide section 411 is less than or equal to half the length of the screening section 412, and baffles 413 are provided on the bottom of the top surface of the guide section 411 and on the side of the screening section 412 that does not contact the wall of the tank 1. The baffles 413 prevent material from slipping off the side and "escaping" from screening. When the guide section 411 is shorter, because the guide section 411 has a larger angle towards the screening section 412, the material can enter the screening section 412 for screening more quickly. When two or more screening sections 412 are arranged above and below the grading mechanism, a better screening effect is achieved.

[0035] Of course, under the screening action described above, in the same grading mechanism, the material falling from the upper screening section 412 may fall to the lower screening section 412 for secondary screening. This helps to ensure screening quality, but on the other hand, it reduces screening efficiency. Therefore, in this application, the number of screening sections 412 in the same grading mechanism should not be too many, generally 2 to 3, to ensure good screening efficiency and good screening speed.

[0036] like Figure 2 , Figure 3 As shown, the first grading mechanism 41 is located above the second grading mechanism 42. The first grading mechanism 41 has two screening sections 412 arranged vertically. The width of the screening section 412 mainly refers to the ratio of its projection on the bottom surface to the overall width of the bottom surface. When two grading mechanisms are set, the width of the screening section 412 is approximately half. At this time, the screening section 412 is set to fit against the inner wall of the tank 1. The guide section 411 is as follows... Figure 3 As shown, in the first grading mechanism 41, the bottom of the upper screening section 412 falls onto the lower screening section 412 (a small portion falls onto the guide section 411 and then slides into the screening section 412), and continues to be screened by the lower screening section 412; after being screened by the upper screening section 412, the material falls into the storage bin 5 through the lower screening section 412.

[0037] Of course, the grading mechanism can also be set up with only one screening section 412, so that the material falls into the storage bin 5 for air drying after one screening.

[0038] After being graded by the grading component set in this embodiment, the material can be separated on the left and right sides into larger and smaller materials, which is suitable for grading and drying granular materials such as grains.

[0039] When the grading mechanism has two or more screening sections 412, in order to ensure the passage of materials, the aperture of the screen on the screening section 412 should be slightly larger than the screening diameter.

[0040] To ensure sufficient material contact, each storage bin 5 at the bottom is equipped with a lifting structure 8, which is suitable for repeatedly lifting and lowering the material located in the storage bin 5. Preferably, the lifting structure 8 includes one or more electrically driven rotating blades, which are helical in shape.

[0041] To ensure easy storage and discharge of materials in storage silo 5, an electrically controlled temporary storage structure is installed at the bottom of storage silo 5. This temporary storage structure is designed to seal the bottom of storage silo 5 and only opens to discharge materials after drying is complete. The temporary storage structure can be referenced... Figure 2 The method of electrically opening and closing the shaded area at the bottom shown is existing technology in this field and will not be further limited.

[0042] The preferred storage silo 5 has an inner cavity comprising a top guide chamber and a bottom drying chamber, the drying chamber having a circular cross-section. This circular cross-section, when fitted with rotating spiral blades, ensures the material within the drying chamber is lifted and flows smoothly.

[0043] The preferred fan component 2 is located on the side of the tank 1, and the fan component 2 is adapted to enter the bottom side wall of the drying chamber and exit the top of the tank 1 to form an airflow. In this way, the airflow generated by the fan component 2 can fully act on the drying chamber, and can also extend the residence time of the material on the grading component 4 to a certain extent. This can ensure effective grading and prevent some small particles from entering the lower layer before being screened in the upper layer when the material moves too fast, resulting in poor uniformity of the graded material.

[0044] In a preferred embodiment, multiple diversion plates 6 are evenly spaced in the bottom area of ​​the tank 1. These multiple diversion plates 6 form multiple storage bins 5 at the bottom of the tank 1. The screening section 412 of the same grading mechanism discharges the material into the corresponding storage bin 5 directly below. The diversion plate 6 may have an inverted V-shaped top 4, which guides the material as it passes through, thus directing it into the corresponding storage bin 5.

[0045] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An automatic grading air-drying device, characterized in that, Including the tank body and the contents installed inside the tank: The grading component includes at least two grading mechanisms, and the same grading mechanism includes at least two screening sections arranged vertically. The screening sections classify materials according to their outer diameter. The projections of the screening sections of different grading mechanisms on the bottom surface do not intersect. The screening sections of the same grading mechanism screen the materials and let them fall to the same side of the bottom. A fan component, the fan component being used to create an airflow to remove moisture; The discharge component includes storage bins equal to or greater than the number of the grading mechanism, and is used to temporarily store and discharge materials.

2. The automatic grading and drying device as described in claim 1, characterized in that, The screening section is inclined, and each screening section is correspondingly provided with a guide section. The guide section extends from one or both sides of the screening section to the side wall of the tank. The guide section forms an inclination angle from its end toward the screening section, which is greater than the inclination angle of the screening section itself. In the same grading mechanism, the bottom of the upper screening section corresponds to the top surface of the next screening section and / or the guide section to transfer material. At the junction of two grading mechanisms, material is transferred from the screening section of the upper grading mechanism to the screening section and / or the guide section of the next grading mechanism.

3. The automatic grading drying device as described in claim 2, characterized in that, The length of the guide section is less than or equal to half the length of the screening section, and baffles are provided at the bottom of the top surface of the guide section and on the side of the screening section that does not contact the tank wall.

4. The automatic grading and drying device as described in claim 1, characterized in that, Each of the storage bins at the bottom is equipped with a lifting structure, which is adapted to repeatedly lift and drop the material located in the storage bin.

5. The automatic grading drying device as described in claim 4, characterized in that, The lifting structure includes one or more electrically driven rotating blades, which are helical.

6. The automatic grading drying device as described in claim 1, characterized in that, The bottom of the storage silo is equipped with an electrically controlled temporary storage structure, which is adapted to seal the bottom of the storage silo and is opened only when drying is complete to discharge the material.

7. The automatic grading and drying device as described in claim 1, characterized in that, The inner cavity of the storage silo includes a top guide chamber and a bottom drying chamber, and the drying chamber has a circular cross-section.

8. The automatic grading drying device as described in claim 7, characterized in that, The fan component is disposed on the side of the tank, and the fan component is adapted to enter the bottom side wall of the drying chamber and exit the top of the tank to form an airflow.

9. The automatic grading drying device as described in claim 1, characterized in that, Multiple diversion plates are evenly spaced in the bottom area of ​​the tank, forming multiple storage bins at the bottom of the tank. The screening section of the same grading mechanism discharges the material into the corresponding storage bin directly below.

10. The automatic grading drying device as described in claim 9, characterized in that, The top of the diverter plate is inverted V-shaped.

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