Anti-blocking screen plate for batch type grain drying machine

Abstract

The utility model discloses an anti-blocking screen plate for a batch type grain drying machine, which comprises a screen plate surface, a plurality of groups of opening areas are arranged on the screen plate surface, long kidney-shaped groove holes are arranged on the opening areas, the width of the long kidney-shaped groove holes is larger than or equal to 1.2 mm and smaller than 2.5 mm, and the long kidney-shaped groove holes are transversely, vertically or obliquely arranged on the opening areas. According to the utility model, the defects in the prior art are overcome, and the phenomenon that the screen plate is blocked by rapeseed particles is avoided; in addition, the long kidney-shaped groove holes are adopted, so that although a plurality of rapeseeds are adsorbed, gaps are still reserved among the rapeseeds for hot air circulation, and the drying process is smoothly carried out.

Description

Technical Field

[0001] This utility model relates to the technical field of batch grain dryers, specifically to an anti-clogging screen plate for batch grain dryers, which is suitable for the crossflow screen plate structure of batch grain dryers. Background Technology

[0002] Currently, batch circulating grain dryers are classified into cross-flow and mixed-flow types based on the hot air flow structure within their drying chamber. Cross-flow dryers have a simpler structure and better drying effect. (Refer to...) Figure 1 The crossflow mesh structure consists of a triangular top plate (a) and a perforated mesh plate (b) located along the lower edge of plate a. Plate a guides the falling grain (e), while the perforated mesh plate (b) allows airflow through the transverse air inlet (c) or outlet (d) channels on either side. Hot air enters the grain channel (d) through the perforated mesh plate (b) on the inlet channel (c) and exits through the perforated mesh plate (b) on the outlet channel (d), thus drying the grain. Both crossflow and mixed-flow structures are relatively effective for drying grains such as rice, wheat, and corn, but they are less suitable for fine and lightweight materials like rapeseed.

[0003] Specifically, rapeseed is mostly spherical with a diameter of φ2.5mm or more. Due to design requirements, the mesh size of the mesh plate is generally limited to φ1.8-φ2.2mm. During the drying process, due to the suction of the fan, rapeseed is easily blocked in the mesh, making it difficult for hot air to pass through, reducing the drying rate and increasing the drying time. Summary of the Invention

[0004] The purpose of this utility model is to provide an anti-clogging mesh plate for a batch grain dryer. In order to solve the problem of low drying rate caused by clogging when drying rapeseed and other materials in a crossflow structure, this utility model proposes an anti-clogging mesh plate for a batch grain dryer.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: a batch grain dryer anti-clogging mesh plate includes a mesh plate surface, the mesh plate surface is provided with multiple sets of opening areas, the opening areas are provided with elongated waist groove holes, the width of the elongated waist groove holes is greater than or equal to 1.2mm and less than 2.5mm, and the elongated waist groove holes are placed horizontally, vertically or obliquely on the opening areas.

[0006] Furthermore, the elongated waist groove is vertically placed on the opening area, with a width of 1.2mm and a length of 25mm.

[0007] Furthermore, the mesh panel is a rectangular thin steel plate, and two rows of horizontally adjacent elongated waist grooves are staggered on each group of opening areas.

[0008] Furthermore, an installation part is provided on the top of the mesh panel, the installation part includes an installation groove with the opening facing downwards, the side frames of the air inlet channel and the air outlet channel are made of the same type of steel structure, and the width of the installation groove is equal to the width of the steel structure.

[0009] Furthermore, a buffer pad is provided at the bottom of the mounting groove.

[0010] Furthermore, a fastener is provided on the groove side of the mounting slot, and the fastener is a clamping pad provided on the outside of the mounting slot.

[0011] Furthermore, the mesh panel is fixedly connected to the side frame in the middle of the air inlet or outlet channel at the avoidance position of the opening area.

[0012] Compared with the prior art, the present invention has the following effects: it solves the problem of low drying rate caused by blockage in crossflow structure drying of rapeseed and similar materials. Attached Figure Description

[0013] Figure 1 This is a structural diagram showing the crossflow mesh plate arrangement of a batch grain dryer.

[0014] Figure 2 This is a structural diagram of the crossflow mesh plate structure of an existing batch grain dryer. In the diagram, to ensure that rapeseed does not accidentally enter the air inlet channel c or the air outlet channel d, the outer circle with a larger diameter represents rapeseed particles, and the inner circle with a smaller diameter represents the holes. The bottom row of the diagram is a control example where no rapeseed particles are adsorbed.

[0015] Figure 3 This is a front view of the basic embodiment of this utility model;

[0016] Figure 4 for Figure 3 Enlarged view of point I in the middle;

[0017] Figure 5 This is a three-dimensional structural diagram of the elongated waist groove hole of this utility model, on which rapeseed particles are adsorbed.

[0018] Figure 6 for Figure 5 The main view;

[0019] Figure 7 This is an assembly diagram of a preferred embodiment of the present invention;

[0020] Figure 8 for Figure 7 A magnified view of a portion of the image;

[0021] Figure 9 This is a side view of a preferred embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figure 3 and 4 As shown, a basic embodiment of the anti-clogging mesh plate for a batch grain dryer according to this utility model includes a mesh plate surface 1, which is a rectangular thin steel plate. The mesh plate surface 1 has several opening areas 2, such as... Figure 1The square mesh panel 1 shown has 7 opening areas 2. The dimensions of the mesh panel 1 are 2490mm*990mm, and the dimensions of the opening areas 2 are 315mm*910mm. The opening areas 2 are arranged side by side in the horizontal direction of the thin steel plate (mesh panel 1), and the opening areas 2 do not contact each other. The distance between the opening areas 2 is 35mm. The distance between the top of the opening area 2 and the top of the mesh panel 1 is less than the distance between the bottom of the opening area 2 and the bottom of the mesh panel 1. Several rows of elongated waist groove holes are formed in the opening areas 2 along the vertical direction of the mesh panel 1 (this provides the best airflow drying effect, followed by elongated waist grooves). The holes are arranged horizontally, followed by the obliquely arranged long waist groove holes. Each column of the long waist groove hole group has several long waist groove holes 3. The width of the long waist groove holes 3 is 1.2mm (or 1.8mm or 2.2mm, which is the standard width for easy manufacturing; of course, the maximum width is 2.5mm). The length of the long waist groove holes 3 is 25mm. The long waist groove holes 3 in each column do not touch each other. The distance between two adjacent columns of long waist groove holes 3 is 1.5mm, and the distance between long waist groove holes 3 in the same column is 1.5mm. The horizontally adjacent columns of long waist groove holes 3 are staggered. When the mesh surface 1 of this utility model is in use, when only a few rapeseed seeds are adsorbed onto the long waist groove holes 3, although the rapeseed particles are adsorbed onto the long waist groove holes 3, there are gaps around them, so there will be no blockage. In addition, referring to... Figure 5 , 6 The long, narrow groove 3 is used so that when multiple rapeseed seeds are adsorbed (or even when multiple rapeseed seeds are completely adsorbed onto the long, narrow groove 3), there are still gaps between the rapeseed seeds for hot air to circulate, allowing the drying process to proceed smoothly.

[0026] like Figure 7-9 As shown, this is a preferred embodiment of an anti-clogging mesh plate for a batch grain dryer according to the present invention.

[0027] The top of the mesh panel 1 is provided with an installation part 4, which includes an installation groove 41 with the opening facing downward. The side frames of the air inlet channel c and the air outlet channel d are made of the same type of steel structure, and the width of the installation groove 41 is equal to the width of the steel structure.

[0028] When installing the mesh panel, the mounting slot 41 can be aligned with the side frame at the top of the air inlet channel c or the air outlet channel d, making assembly very convenient.

[0029] A buffer pad 42 is provided at the bottom of the mounting groove 41. Since the assembly of the mesh panel is based on its own weight, a buffer pad 42 is provided at the bottom of the mounting groove 41 to prevent damage to the side frame at the top of the air inlet channel c or the air outlet channel d, as well as the bottom wall of the mounting groove 41, due to the weight of the mesh panel.

[0030] A fastener 43 is provided on the groove side of the mounting groove 41. The fastener 43 is a clamping pad provided on the outside of the mounting groove 41. In order to ensure the stable arrangement of the mounting part 4, a clamping pad is provided on the groove side of the mounting groove 41.

[0031] The mesh panel 1 is located in a position that avoids the opening area 2 and is fixedly connected to the side frame in the middle of the air inlet channel c or the air outlet channel d. This makes the entire mesh panel very stable and reliable during drying.

[0032] In summary, with the mesh plate of this utility model, when individual rapeseed seeds are adsorbed onto the elongated waist groove 3, although the rapeseed particles are adsorbed onto the elongated waist groove 3, there are gaps around them so that no blockage occurs; when multiple rapeseed seeds are adsorbed and filled into the elongated waist groove 3, the structure of the elongated waist groove 3 ensures that although multiple rapeseed seeds are adsorbed and filled, there are still gaps between the rapeseed seeds for hot air circulation, so that the drying process can proceed smoothly.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant mesh plate for a batch grain dryer, comprising a mesh plate surface (1), wherein the mesh plate surface (1) is provided with multiple sets of opening areas (2), characterized in that: An elongated waist groove hole (3) is provided on the opening area (2). The width of the elongated waist groove hole (3) is greater than or equal to 1.2 mm and less than 2.5 mm. The elongated waist groove hole (3) is placed horizontally, vertically, or obliquely on the opening area (2).

2. The anti-clogging mesh plate for a batch grain dryer according to claim 1, characterized in that: The elongated waist groove (3) is placed vertically on the opening area (2). The width of the elongated waist groove (3) is 1.2 mm and the length of the elongated waist groove (3) is 25 mm.

3. The anti-clogging mesh plate for a batch grain dryer according to claim 1 or 2, characterized in that: The mesh panel (1) is a rectangular thin steel plate, and two rows of horizontally adjacent elongated waist slot holes (3) are staggered on each group of opening areas (2).

4. The anti-clogging mesh plate for a batch grain dryer according to claim 3, characterized in that: The top of the mesh panel 1 is provided with an installation part 4. The installation part (4) includes an installation groove (41) with the opening facing downward. The side frames of the air inlet channel (c) and the air outlet channel (d) are of the same type of steel structure. The width of the installation groove (41) is equal to the width of the steel structure.

5. The anti-clogging mesh plate for a batch grain dryer according to claim 4, characterized in that: A buffer pad (42) is provided at the bottom of the mounting groove (41).

6. The anti-clogging mesh plate for a batch grain dryer according to claim 5, characterized in that: A fastener (43) is provided on the groove side of the mounting groove (41), and the fastener (43) is a clamping pad provided on the outside of the mounting groove (41).

7. The anti-clogging mesh plate for a batch grain dryer according to claim 5, characterized in that: The mesh panel (1) is located in the avoidance position of the opening area (2) and is fixedly connected to the side frame in the middle of the air inlet channel (c) or air outlet channel (d).

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