Grain drying, feeding and dust removing mechanism

Abstract

The utility model discloses a kind of grain drying feeding dust removal mechanism, including hopper, hopper both ends and top are open structure, the one end of hopper is connected with connecting flange, the other end is provided with negative pressure bin, negative pressure bin is located below hopper, the one end of negative pressure bin away from connecting flange is provided with negative pressure mouth. The utility model negative pressure bin and negative pressure pipe, external dust collector cooperate, can be in grain feeding process through negative pressure high-efficiency adsorption dust, reduce dust diffusion, improve working environment;Pressure regulating mechanism is adjusted by valve plate rotation and adjusts the size of air inlet, can flexibly change the negative pressure intensity in negative pressure bin, adapt to different kinds, different dust content grain, ensure that dust removal effect is stable;Filter plate at air inlet can screen larger particle size impurities, prevent its into dust collector internal and cause blockage or damage, prolong equipment service life;Magnetic filter plate can also adsorb mixed metal impurities in grain, further improve grain purity.

Description

Technical Field

[0001] This utility model relates to the technical field of grain drying equipment, and in particular to a grain drying feeding and dust removal mechanism. Background Technology

[0002] In the grain drying process, the feeding stage is one of the key steps. Existing grain drying feeding equipment, during operation, generates a large amount of dust and impurities due to the grain carrying it, and the unstable airflow within the feeding channel easily leads to dust dispersion. This not only pollutes the working environment but also affects the health of the operators.

[0003] Meanwhile, existing dust removal equipment typically employs a fixed negative pressure design, which cannot adjust the negative pressure according to the particle size and dust content of different grains (such as wheat, corn, and rice). This results in unstable dust removal performance—for smaller grains, excessive negative pressure may draw the grains into the dust removal equipment; for grains with high dust content, insufficient negative pressure will fail to completely remove the dust. Furthermore, existing equipment lacks an effective filtration structure, allowing larger impurities or foreign objects to easily enter the dust removal equipment, causing blockages, damage, and affecting its service life and working efficiency.

[0004] Therefore, there is an urgent need for a grain drying feeding and dust removal mechanism that can flexibly adjust negative pressure, effectively filter impurities, and has a good dust removal effect. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a grain drying feeding and dust removal mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A grain drying feeding and dust removal mechanism includes a hopper with open ends and top. One end of the hopper is connected to a connecting flange, and the other end is provided with a negative pressure chamber located below the hopper. A negative pressure port is provided at the end of the negative pressure chamber away from the connecting flange. One side of the other end of the negative pressure chamber is connected to a negative pressure pipe connected to an external vacuum cleaner, and the other end is provided with a pressure regulating mechanism.

[0007] Preferably, the pressure regulating mechanism includes multiple air inlets distributed at equal angles, a valve plate is provided on one side of the air inlet, the valve plate is rotatably connected to a central shaft, the central shaft is fixedly connected to the side wall of the hopper, and a fastening nut is threaded onto the central shaft.

[0008] Preferably, the angle between the outer plane of the air inlet and the end plane of the hopper is less than °.

[0009] Preferably, a filter plate is connected to the outer surface of the air inlet by connecting bolts.

[0010] Preferably, the filter plate has a magnetic structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The negative pressure chamber, together with the negative pressure pipe and external vacuum cleaner, can efficiently adsorb dust through negative pressure during the grain feeding process, reduce dust diffusion, and improve the working environment; The pressure regulating mechanism adjusts the size of the air inlet by rotating the valve plate, which can flexibly change the negative pressure intensity in the negative pressure chamber to adapt to different types of grains with different dust contents and ensure stable dust removal effect; The filter plate at the air inlet can screen out larger particles of impurities, preventing them from entering the vacuum cleaner and causing blockage or damage, thus extending the service life of the equipment. Magnetic filter plates can also adsorb metallic impurities mixed in grains, further improving the purity of the grains. Attached Figure Description

[0012] To illustrate the technical solutions in the embodiments of this utility model or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the structure proposed in this utility model. Figure 1 ; Figure 2 for Figure 1 Enlarged view of the structure of section A in the middle; Figure 3 This is a schematic diagram of the structure proposed in this utility model. Figure 2 ; Figure 4 This is a schematic diagram of the structure proposed in this utility model. Figure 3 .

[0014] In the diagram: 1. Hopper; 2. Connecting flange; 3. Filter plate; 4. Negative pressure chamber; 5. Negative pressure port; 6. Air inlet; 7. Valve plate; 8. Central shaft; 9. Fastening nut; 10. Negative pressure pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-4A grain drying feeding and dust removal mechanism includes a hopper 1, which is open at both ends and top. One end of the hopper 1 is connected to a connecting flange 2, and the other end is provided with a negative pressure chamber 4 located below the hopper 1. A negative pressure port 5 is provided at the end of the negative pressure chamber 4 away from the connecting flange 2. A negative pressure pipe 10 connected to an external vacuum cleaner is connected to one side of the other end of the negative pressure chamber 4, and a pressure regulating mechanism is provided at the other end. The pressure regulating mechanism includes multiple air inlets 6 distributed at equal angles. A valve plate 7 is provided on one side of the air inlet 6. A central shaft 8 is rotatably connected to the valve plate 7. The central shaft 8 is fixedly connected to the side wall of the hopper 1, and a fastening nut 9 is threaded onto the central shaft 8. The angle between the outer plane of the air inlet 6 and the end plane of the hopper 1 is less than 160°. A filter plate 3 is connected to the outer plane of the air inlet 6 by connecting bolts. The filter plate 3 is a magnetic structure.

[0017] The hopper 1 is installed at an angle at the discharge port of the grain dryer via the connecting flange 2. The dried grain rolls down the hopper 1 under the action of gravity. At this time, the external vacuum cleaner is started, and negative pressure is generated in the negative pressure chamber 4 through the negative pressure pipe 10. The dust generated during the rolling of the grain is sucked into the negative pressure chamber 4 through the negative pressure port 5 and enters the vacuum cleaner along the negative pressure pipe 10, thus achieving efficient dust removal.

[0018] When it is necessary to adapt to different grains, loosen the fastening nut 9 and rotate the valve plate 7 to change its relative position with the air inlet 6, thereby adjusting the opening size of the air inlet 6. The larger the opening of the air inlet 6, the smaller the negative pressure in the negative pressure chamber 4, which is suitable for grains with larger particles or less dust content; the smaller the opening of the air inlet 6, the greater the negative pressure, which is suitable for grains with smaller particles or more dust content. After adjustment, tighten the fastening nut 9 to fix the position of the valve plate 7.

[0019] The filter plate 3 at the air inlet 6 can block larger impurities (such as straw fragments, large particles of soil, etc.) from entering the negative pressure pipe 10. The magnetic filter plate 3 can also adsorb metal impurities such as iron filings mixed in the grain, which protects the vacuum cleaner and improves the quality of the grain.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A grain drying feeding and dust removal mechanism, comprising a hopper (1), wherein the two ends and the top of the hopper (1) are open structures, characterized in that, One end of the hopper (1) is connected to a connecting flange (2), and the other end is provided with a negative pressure chamber (4). The negative pressure chamber (4) is located below the hopper (1). The negative pressure chamber (4) is provided with a negative pressure port (5) at the end away from the connecting flange (2). The other end of the negative pressure chamber (4) is connected to a negative pressure pipe (10) connected to an external vacuum cleaner on one side, and a pressure regulating mechanism is provided at the other end.

2. The grain drying feeding and dust removal mechanism according to claim 1, characterized in that, The pressure regulating mechanism includes multiple air inlets (6) distributed at equal angles. A valve plate (7) is provided on one side of the air inlet (6). A central shaft (8) is rotatably connected to the valve plate (7). The central shaft (8) is fixedly connected to the side wall of the hopper (1). A fastening nut (9) is threaded on the central shaft (8).

3. The grain drying feeding and dust removal mechanism according to claim 2, characterized in that, The angle between the outer plane of the air inlet (6) and the end plane of the hopper (1) is less than 160°.

4. The grain drying feeding and dust removal mechanism according to claim 3, characterized in that, The outer surface of the air inlet (6) is connected to a filter plate (3) by connecting bolts.

5. A grain drying feeding and dust removal mechanism according to claim 4, characterized in that, The filter plate (3) has a magnetic structure.

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