Grain and oil processing drying and dust removing device

Abstract

The utility model relates to the technical field of grain and oil processing drying, and disclose a kind of grain and oil processing drying dust removal device, including machine body, the inner wall upper end left side of machine body is rotationally equipped with guide plate, the upper end right side of guide plate and machine body inner wall is reserved gap, by being provided with two symmetrical baffle in blast cavity, and baffle is connected by screw hole block and two-way screw rod thread, and the two-way screw rod can be driven two baffle along guide rail and slide oppositely or reversely by cooperation hand wheel rotation, realize the flexible adjustment of air outlet area, when processing rapeseed, sesame and other light small raw materials, air outlet area can be increased to reduce wind speed, avoid the loss caused by the fact that raw materials are mislead into impurity flow due to wind speed is too high, when processing corn, peanut and other heavy raw materials, air outlet area can be reduced to improve wind speed, ensure that light dust and straw scrap are effectively taken away, to adapt to the winnowing needs of different weight raw materials, improve the versatility and dust removal reliability of device.

Description

Technical Field

[0001] This utility model relates to the field of grain and oil processing and drying technology, and in particular to a dust removal device for grain and oil processing and drying. Background Technology

[0002] Grain and oilseed processing is a crucial link in ensuring food security and the development of the food industry. It encompasses the processing of various raw materials such as rice, wheat, corn, soybeans, rapeseed, and peanuts. The core objective is to transform raw agricultural products into finished products that can be consumed directly or further processed through processes such as cleaning, drying, dehulling, and milling. Among these, cleaning and drying are key preliminary steps in the processing flow, directly impacting the efficiency of subsequent processes and the quality of the final product.

[0003] In grain and oil processing, based on technological logic and actual production needs, the process typically involves "dust removal followed by drying." Raw materials can become contaminated with a large amount of impurities during harvesting, storage, and transportation, including dust, straw fragments, sand, and shriveled grains. If these impurities are carried into the drying process, light impurities such as dust will adhere to the surface of the raw materials, forming an insulating layer that hinders heat transfer, leading to uneven drying and increased energy consumption. Simultaneously, heavy impurities such as sand and gravel may cause mechanical wear within the drying equipment, while dust accumulation can also lead to equipment malfunctions or even safety hazards.

[0004] Currently, the most common dust removal method in grain and oil processing is air classification, which utilizes the difference in airflow's carrying capacity for materials of different weights to separate raw materials from impurities. However, existing air classification structures have significant limitations: due to the wide variety and significant weight differences among grain and oil raw materials, a fixed outlet structure cannot meet the separation requirements of raw materials of different weights under the same power output. For light and small raw materials, excessively high air velocities can cause the raw materials to be mistakenly carried into the impurity stream, resulting in losses; while for heavier raw materials, excessively low air velocities are insufficient to effectively remove light dust and straw fragments, leading to incomplete dust removal. This reduces the versatility and reliability of existing air classification structures, making it difficult to meet the actual needs of diverse grain and oil processing scenarios. Utility Model Content

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

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a grain and oil processing drying and dust removal device, comprising a body, a guide plate rotatably provided on the upper left side of the inner wall of the body, a gap reserved between the guide plate and the upper right side of the inner wall of the body, a dust removal seat fixedly installed on the right side of the inner wall of the body, the dust removal seat being located below the guide plate and its upper end corresponding to the gap reserved in the guide plate, the upper end of the dust removal seat being an inclined slope structure and a breathable mesh fixedly installed in its middle, the dust removal seat having an air inlet chamber and a blower chamber inside, two fans installed at the connection position of the air inlet chamber and the blower chamber, the output ends of the two fans being located inside the blower chamber and corresponding to the breathable mesh, two baffles symmetrically provided on the inner side of the blower chamber, a bidirectional screw rotatably installed on the left side of the inside of the blower chamber, and screw holes fixedly installed on one side of the bottom of each of the two baffles, the two baffles being threadedly installed to both sides of the bidirectional screw through the screw holes.

[0007] Preferably, the upper end of the bidirectional screw extends through to the outside of the machine body and is fixedly mounted with a handwheel, and a limit post is fixedly mounted inside the blower chamber on the side away from the bidirectional screw.

[0008] Preferably, a guide block is fixedly installed on the bottom side of the two wind deflectors away from the screw hole block, and the surface of the guide block is provided with a slot adapted to the limiting post. The wind deflector is slidably installed on the surface of the limiting post through the guide block.

[0009] Preferably, guide rails are provided on both sides of the inner wall of the blower cavity, and the two ends of the two baffles are slidably disposed on the inner side of the guide rails. The two fans are fixed in the partition between the air inlet cavity and the blower cavity by the frame. A dustproof net is provided at the outer end of the air inlet cavity near the machine body. The dustproof net is detachably connected to the outer wall of the machine body by screws.

[0010] Preferably, a shaft is fixedly installed on the side of the guide plate away from the gap, and both ends of the shaft are rotatably installed on the inner wall of the machine body. One end of the shaft extends through to the outside of the machine body and is fixedly installed with a hinge seat.

[0011] Preferably, a locking rod is hinged to the inner side of the hinge seat, and an arc-shaped plate is fixedly installed on the upper surface of the machine body. The arc-shaped plate is located below the locking rod, and three U-shaped slots are equally spaced on the inner side of the arc-shaped plate.

[0012] Preferably, the size of the locking rod is adapted to the inner size of the U-shaped slot, the upper end of the machine body is provided with a dust discharge port, the inner side of the dust discharge port corresponds to the output end of the two fans, and a collection seat is fixedly installed on the upper outer side of the machine body.

[0013] Preferably, the collecting seat is located at the bottom of the dust discharge port, a pull-out box is slidably installed on the inner side of the collecting seat, a conical guide port is opened in the middle of the inner wall of the machine body, a heating cylinder is fixedly installed at the bottom of the inner wall of the machine body, the heating cylinder is electrically connected to an external controller through a wire, and a discharge valve is installed at its bottom.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. By setting two symmetrical baffles in the blower chamber, and the baffles are threaded to the bidirectional screw through screw holes, the two baffles can be driven to slide in opposite directions along the guide rail by rotating the bidirectional screw with a handwheel, so as to flexibly adjust the outlet area. When processing light raw materials such as rapeseed and sesame, the air velocity can be reduced by increasing the outlet area to avoid the raw materials being mistakenly carried into the impurity flow due to excessive air velocity and causing loss. When processing heavier raw materials such as corn and peanuts, the air velocity can be increased by reducing the outlet area to ensure that light dust and straw fragments are effectively carried away, thereby adapting to the air separation needs of raw materials of different weights and improving the versatility and dust removal reliability of the device.

[0016] 2. The guide plate's tilt angle can be adjusted in three positions using a locking rod on one side and three U-shaped slots on the upper arc plate of the machine body. Adjusting the guide plate angle changes the speed and landing point of the raw material as it falls onto the dust collector. When processing larger or heavier raw materials, the guide plate angle can be increased to accelerate the falling speed and prevent the raw material from accumulating on the guide plate. When processing smaller or lighter raw materials, the guide plate angle can be decreased to slow down the falling speed, allowing the raw material to fully contact the airflow and further improving the air classification and dust removal effect. This works in conjunction with the wind speed adjustment of the baffle plate to enhance the device's adaptability to raw materials with different characteristics.

[0017] 3. The dust discharge port at the top of the machine body cooperates with the outer collection seat. The pull-out box, which is slidably installed inside the collection seat, can collect the impurities discharged from the dust discharge port. Compared with the secondary pollution problem caused by the scattering of impurities in existing air separation dust removal devices, this structure allows the dust, debris, and other impurities separated during the dust removal process to fall directly into the pull-out box. Workers can easily clean and handle the impurities by pulling out the pull-out box, avoiding the accumulation of impurities that affect the operating environment of the device. At the same time, it reduces the labor intensity of manual cleaning and ensures the continuity and cleanliness of the dust removal process. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall internal cross-sectional structure of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the exploded structure of the guide plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the upper cross-sectional structure of the body of this utility model;

[0023] Figure 6 This is a schematic diagram of the inner side of the blower cavity of this utility model from a bottom view.

[0024] Figure label:

[0025] 1. Machine body; 101. Guide plate;

[0026] 2. Dust collector seat; 201. Ventilation mesh; 202. Air inlet chamber; 203. Blower chamber;

[0027] 3. Fan;

[0028] 4. Dustproof netting;

[0029] 5. Wind deflector; 501. Guide rail; 502. Screw hole block; 503. Double-acting screw; 504. Handwheel; 505. Limiting post; 506. Guide block.

[0030] 6. Shaft; 601. Hinge seat; 602. Locking rod; 603. Arc plate; 604. U-shaped groove;

[0031] 7. Dust exhaust port;

[0032] 8. Collection base; 801. Pull-out box;

[0033] 9. Feed inlet;

[0034] 10. Heating cylinder. Detailed Implementation

[0035] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0036] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0037] Example: Reference Figures 1-6A grain and oil processing drying dust removal device includes a body 1. A guide plate 101 is rotatably mounted on the upper left side of the inner wall of the body 1. A gap is reserved between the guide plate 101 and the upper right side of the inner wall of the body 1. A dust removal seat 2 is fixedly installed on the right side of the inner wall of the body 1. The dust removal seat 2 is located below the guide plate 101, and its upper end corresponds to the reserved gap of the guide plate 101. The upper end of the dust removal seat 2 is an inclined slope structure, and a breathable mesh 201 is fixedly installed in its middle. The interior of the dust removal seat 2 is provided with an air inlet chamber 202 and an air outlet chamber 202. Two fans 3 are installed at the connection position of the blower chamber 203, the air inlet chamber 202 and the blower chamber 203. The output ends of the two fans 3 are located inside the blower chamber 203 and correspond to the vent mesh 201. Two baffles 5 are symmetrically arranged on the inner side of the blower chamber 203. A bidirectional screw 503 is rotatably installed on the left side inside the blower chamber 203. A screw hole block 502 is fixedly installed on one side of the bottom of each of the two baffles 5. The two baffles 5 are threaded to both sides of the bidirectional screw 503 through the screw hole block 502.

[0038] Specifically: In actual use, the blower 3 sends the air in the air inlet chamber 202 into the blower chamber 203 to form an airflow for air separation and dust removal. The permeable mesh 201 has a hole diameter of 2-3mm, which allows the airflow in the blower chamber 203 to blow upwards while preventing raw materials from falling into the blower chamber 203, thus achieving effective airflow output and material isolation. Because the threads on both sides of the bidirectional screw 503 are opposite, it can drive the two baffles 5 to move in opposite directions or away from each other when rotating by cooperating with the screw hole block 502, thereby changing the area of ​​the air outlet of the blower chamber 203 and adjusting the airflow speed. The baffles 5 adjust the effective flow area of ​​the air outlet by changing their own position, thereby controlling the airflow speed to adapt to raw materials of different weights.

[0039] When the device is running, the blower 3 sends air from the inlet chamber 202 into the blower chamber 203. The airflow converges in the blower chamber 203 and is blown upward through the permeable mesh 201. Based on the weight characteristics of the raw material to be processed, by rotating the bidirectional screw 503, under the transmission action of the screw hole block 502, the two baffle plates 5 slide towards or away from each other along the inner side of the blower chamber 203: when processing heavier raw materials, the baffle plates 5 move towards each other to reduce the outlet area, increasing the airflow velocity to ensure that light impurities are effectively carried away; when processing light and small raw materials, the baffle plates 5 move away from each other to increase the outlet area, reducing the airflow velocity to prevent the raw material from being mistakenly carried into the impurity flow. Simultaneously, the raw material on the guide plate 101 falls from the gap onto the inclined surface of the dust collector seat 2, fully contacting the airflow blown out by the permeable mesh 201. Impurities are separated under the action of the airflow, while the raw material slides down the inclined surface, achieving efficient air classification and dust removal. The entire process, through the coordinated cooperation of various structures, precisely adapts to the processing needs of different raw materials.

[0040] The upper end of the bidirectional screw 503 extends through to the outside of the body 1 and is fixedly installed with a handwheel 504. A limit post 505 is fixedly installed on the side of the blower chamber 203 away from the bidirectional screw 503. A guide block 506 is fixedly installed on the bottom side of the two baffles 5 away from the screw hole block 502. The surface of the guide block 506 is provided with a hole groove that matches the limit post 505. The baffles 5 are slidably installed on the surface of the limit post 505 through the guide block 506.

[0041] Specifically: The limiting post 505, in conjunction with the guide block 506, provides stable sliding support for the baffle plate 5, limiting its movement direction and preventing it from shifting during sliding. When adjusting the outlet area, the operator turns the handwheel 504, which drives the bidirectional screw 503 to rotate synchronously. Under the threaded engagement of the bidirectional screw 503 and the screw hole block 502, the two baffle plates 5 begin to move. At this time, the baffle plates 5 slide along the limiting post 505 via the guide block 506. The cooperation between the limiting post 505 and the guide block 506 ensures that the baffle plates 5 do not deviate from the preset trajectory, allowing the two baffle plates 5 to move stably towards or away from each other. This precisely adjusts the outlet area of ​​the blower chamber 203 to adapt to the air separation requirements of raw materials of different weights. The entire adjustment process is stable, reliable, simple, and efficient.

[0042] Guide rails 501 are provided on both sides of the inner wall of the blower chamber 203. The two ends of the two baffles 5 are slidably provided on the inner side of the guide rails 501. The two fans 3 are fixed in the partition between the air inlet chamber 202 and the blower chamber 203 by the frame. A dustproof net 4 is provided at the outer end of the air inlet chamber 202 near the machine body 1. The dustproof net 4 is detachably connected to the outer wall of the machine body 1 by screws. A shaft 6 is fixedly installed on the side of the guide plate 101 away from the gap. The two ends of the shaft 6 are rotatably installed on the inner wall of the machine body 1. One end of the shaft 6 extends through to the outside of the machine body 1 and is fixedly installed with a hinge seat 601. A locking rod 602 is hingedly installed on the inner side of the hinge seat 601. An arc plate 603 is fixedly installed on the upper surface of the machine body 1. The arc plate 603 is located below the locking rod 602. Three U-shaped slots 604 are equally spaced on the inner side of the arc plate 603.

[0043] Specifically: the shaft 6 allows the guide plate 101 to rotate flexibly around its axis, and at the same time, the locking rod 602 can fix the rotation angle of the guide plate 101 by locking it into different U-shaped slots 604, thus limiting the guide plate 101 to a preset tilt position; the U-shaped slots 604 on the arc plate 603 are evenly distributed, providing multiple fixing points for the locking rod 602, thereby realizing multi-level adjustment of the tilt angle of the guide plate 101.

[0044] By rotating the guide plate 101, the shaft 6 rotates accordingly, causing the hinge seat 601 and the locking rod 602 to move synchronously. When the guide plate 101 is adjusted to the required tilt angle, rotating the locking rod 602 causes it to engage with the corresponding U-shaped slot 604 on the arc plate 603, thus fixing the angle of the guide plate 101. This allows the guide plate 101 to flexibly adjust its tilt angle according to the characteristics of the raw materials, changing the falling speed and landing point of the raw materials, ensuring full contact between the raw materials and the airflow, and providing a reliable guarantee for improving the dust removal effect of air classification. The entire adjustment process is simple to operate, securely fixed, and adaptable to the processing needs of different raw materials.

[0045] The dimensions of the locking rod 602 are matched with the inner dimensions of the U-shaped slot 604, allowing the locking rod 602 to be precisely engaged in the U-shaped slot 604, providing a reliable limiting effect for fixing the angle of the guide plate 101. A dust discharge port 7 is provided at the upper end of the machine body 1, with the inner side of the dust discharge port 7 corresponding to the output ends of the two fans 3, allowing for the concentrated discharge of dust-laden airflow generated by the fans 3. A collection seat 8 is fixedly installed on the upper outer side of the machine body 1, located at the bottom of the dust discharge port 7. A pull-out box 801 is slidably installed on the inner side of the collection seat 8. The inner wall of the machine body 1... The machine body 1 has a conical feed inlet 9. A heating cylinder 10 is fixedly installed on the bottom of the inner wall of the machine body 1. The heating cylinder 10 is electrically connected to an external controller via wires and has a discharge valve installed at its bottom. When the device is running, impurities after being removed by air separation enter the collection seat 8 through the dust discharge port 7 with the airflow and fall into the pull-out box 801 for centralized collection. The raw material after dust removal slides down the inclined surface of the dust removal seat 2, converges through the conical feed inlet 9 and enters the heating cylinder 10. The external controller controls the heating cylinder 10 to heat and dry the raw material. After drying, it is discharged through the bottom discharge valve.

[0046] The working principle of this utility model is as follows: In specific use, the fan 3 is first started, and the external air enters the air intake chamber 202 after being filtered by the dustproof net 4, and is then sent into the blower chamber 203 by the fan 3. Then, the grain and oil raw materials to be processed are fed from the top of the machine body 1. The raw materials fall on the guide plate 101. According to the weight and particle characteristics of the raw materials, the locking rod 602 is rotated by the hinge seat 601 to lock them into the corresponding U-shaped slot 604 on the arc plate 603. The tilt angle of the guide plate 101 is adjusted so that the raw materials fall from the gap between the guide plate 101 and the inner wall of the machine body 1 at a suitable speed to the inclined surface of the dust collector seat 2.

[0047] Based on the weight difference of the raw materials, the handwheel 504 is turned to drive the bidirectional screw 503 to rotate. The bidirectional screw 503 drives the two baffles 5 to slide in opposite directions along the guide rail 501 and the limiting post 505 through the screw hole block 502, thereby adjusting the area of ​​the air outlet of the blower chamber 203. When processing light and small raw materials, the air outlet area is increased to reduce the wind speed and prevent the raw materials from being mistakenly carried away. When processing heavier raw materials, the air outlet area is reduced to increase the wind speed and ensure that light impurities are effectively removed.

[0048] Airflow is blown upwards through the breathable mesh 201, making full contact with the falling raw material. This blows up light impurities such as dust and straw fragments from the raw material. The impurities move upwards with the airflow and fall into the pull-out box 801 of the collection seat 8 through the dust discharge port 7 for centralized collection. The dust-removed raw material slides down the inclined surface of the dust removal seat 2 and enters the heating cylinder 10 at the bottom of the machine body 1 through the conical guide port 9. Under the control of an external controller, the heating cylinder 10 heats and dries the raw material. After drying, the material is discharged through the discharge valve at the bottom.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A grain and oil processing drying and dust removal device, comprising a body (1), characterized in that: A guide plate (101) is rotatably provided on the upper left side of the inner wall of the machine body (1). A gap is reserved between the guide plate (101) and the upper right side of the inner wall of the machine body (1). A dust collector seat (2) is fixedly installed on the right side of the inner wall of the machine body (1). The dust collector seat (2) is located below the guide plate (101) and its upper end corresponds to the gap reserved by the guide plate (101). The upper end of the dust collector seat (2) is an inclined slope structure and a breathable mesh (201) is fixedly installed in its middle. The interior of the dust collector seat (2) is provided with an air inlet chamber (202) and a blower chamber (203). Two fans (3) are installed at the connection position of the cavity (202) and the blower cavity (203). The output ends of the two fans (3) are located inside the blower cavity (203) and correspond to the ventilation net (201). Two baffles (5) are symmetrically arranged on the inner side of the blower cavity (203). A bidirectional screw (503) is rotatably installed on the left side inside the blower cavity (203). A screw hole block (502) is fixedly installed on one side of the bottom of the two baffles (5). The two baffles (5) are threaded to both sides of the bidirectional screw (503) through the screw hole block (502).

2. The grain and oil processing drying and dust removal device according to claim 1, characterized in that: The upper end of the bidirectional screw (503) extends through to the outside of the machine body (1) and is fixedly installed with a handwheel (504). A limit post (505) is fixedly installed on the side of the blower chamber (203) away from the bidirectional screw (503).

3. The grain and oil processing drying and dust removal device according to claim 2, characterized in that: The bottom of the two wind deflectors (5) away from the screw hole block (502) is fixedly installed with a guide block (506), and the surface of the guide block (506) is provided with a hole groove that matches the limiting post (505). The wind deflector (5) is slidably installed on the surface of the limiting post (505) through the guide block (506).

4. The grain and oil processing drying and dust removal device according to claim 1, characterized in that: The inner wall of the blower cavity (203) is provided with guide rails (501) on both sides. The two ends of the two baffles (5) are respectively slidably disposed on the inner side of the guide rails (501). The two fans (3) are fixed in the partition between the air inlet cavity (202) and the blower cavity (203) by the frame. The air inlet cavity (202) is provided with a dustproof net (4) at one end near the outer side of the body (1). The dustproof net (4) is detachably connected to the outer wall of the body (1) by screws.

5. The grain and oil processing drying and dust removal device according to claim 1, characterized in that: A shaft (6) is fixedly installed on the side of the guide plate (101) away from the gap. Both ends of the shaft (6) are rotatably installed on the inner wall of the machine body (1). One end of the shaft (6) extends through to the outside of the machine body (1) and is fixedly installed with a hinge seat (601).

6. The grain and oil processing drying and dust removal device according to claim 5, characterized in that: The hinge seat (601) is hinged to the inner side with a locking rod (602), and the upper surface of the body (1) is fixedly installed with an arc plate (603). The arc plate (603) is located below the locking rod (602), and three U-shaped slots (604) are equally spaced on the inner side of the arc plate (603).

7. The grain and oil processing drying and dust removal device according to claim 6, characterized in that: The dimensions of the positioning rod (602) are adapted to the inner dimensions of the U-shaped slot (604). A dust discharge port (7) is provided at the upper end of the body (1). The inner side of the dust discharge port (7) corresponds to the output end of the two fans (3). A collection seat (8) is fixedly installed on the upper outer side of the body (1).

8. The grain and oil processing drying and dust removal device according to claim 7, characterized in that: The collecting seat (8) is located at the bottom of the dust discharge port (7). A pull-out box (801) is slidably installed on the inner side of the collecting seat (8). A conical guide port (9) is opened in the middle of the inner wall of the machine body (1). A heating cylinder (10) is fixedly installed at the bottom of the inner wall of the machine body (1). The heating cylinder (10) is electrically connected to an external controller through a wire and a discharge valve is installed at its bottom.

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