A feed dedusting device

Abstract

The utility model belongs to the field of feed dust removal, especially is involved in a kind of feed dust removal equipment.The technology includes the horizontally arranged wind box, several supporting legs are vertically fixed on the wind box, air inlet fan is installed on the right side wall of the wind box, the top of wind box is fixed with the storage hopper that is communicated with its inside, the bottom of wind box is opened with the discharge port that is communicated inside and outside in alignment with storage hopper, the left side of wind box bottom is vertically fixed with the exhaust pipe that is communicated with its inside, filter screen is detachably installed in the exhaust pipe in inclined shape, dust collection assembly is arranged on the exhaust pipe, cleaning assembly is arranged on the exhaust pipe.Feed is free to fall from storage hopper, larger gap will be generated between feed particles in the falling process;Air inlet fan will high-speed suction external air into wind box and flow to left side to form stable airflow, and stable airflow can uniformly pass through the gap between feed particles, dust attached to the surface of feed particles is fully blown away, dust and feed particles are separated, thereby effectively improving dust removal effect.

Description

Technical Field

[0001] This utility model belongs to the field of feed dust removal, and in particular relates to a feed dust removal device. Background Technology

[0002] Animal feed is a specially formulated substance designed to meet the nutritional needs of animals. It typically contains grains, protein sources, minerals, and vitamins, and is a core product of the livestock and pet food industries. During feed processing, from cleaning, crushing, and mixing raw materials to pelleting and cooling, mechanical friction, material agitation, and impact all cause fine particles to detach from the bulk, forming dust. This dust needs to be removed before packaging. Direct packaging may result in uneven feed composition, increased susceptibility to mold and clumping, and compromised palatability and nutritional value.

[0003] Existing feed dust removal equipment mostly uses mechanical stirring or vibration to separate dust from feed particles, and then uses negative pressure dust collection components to capture the scattered dust. During operation, in order to prevent excessive damage to feed particles, the stirring or vibration intensity is limited, making it difficult for the rapid airflow to fully pass through all the gaps between feed particles. Deeply embedded dust cannot be effectively removed, resulting in dust residue and affecting the dust removal effect. Utility Model Content

[0004] The purpose of this invention is to provide a feed dust removal device that allows airflow to pass fully through the gaps between particles, thereby improving the dust removal effect.

[0005] The feed dust removal equipment includes a horizontally arranged bellows with several vertically fixed supports. An air intake fan for supplying air to the bellows is installed on the right side wall of the bellows. A storage hopper communicating with the interior of the bellows is fixed to the top of the bellows. A discharge port communicating with the interior is opened at the bottom of the bellows, aligned with the storage hopper. An exhaust pipe communicating with the interior of the bellows is vertically fixed to the left side of the bottom of the bellows. A filter screen is detachably installed in an inclined manner inside the exhaust pipe. A dust collection component for collecting dust is installed on the exhaust pipe. A cleaning component for cleaning dust from the filter screen is also installed on the exhaust pipe.

[0006] Furthermore, the cleaning assembly includes a motor mounted on the side wall of the exhaust duct, with the motor's output end passing through the side wall of the exhaust duct and located inside it. A rotating rod perpendicular to the motor's output end is fixed to the motor's output end, and top blocks for pushing the filter screen are fixed to both ends of the rotating rod.

[0007] Furthermore, the top block has a spherical structure.

[0008] Furthermore, the dust collection assembly includes a dust collection box, and a housing is fixed on the side wall of the exhaust pipe corresponding to the downward tilt of the filter screen. A dust discharge port is opened on the side wall of the exhaust pipe to connect the inside of the housing with the inside of the exhaust pipe. The dust discharge port is aligned with the filter screen. An opening is opened on the front side wall of the housing, and the dust collection box is inserted into the housing through the opening.

[0009] Furthermore, a grid is vertically installed inside the air box, the grid is located between the air intake fan and the discharge port, the top of the air box has a through hole that is open to the inside and outside and is used to independently insert the upper end of the grid, and the bottom of the air box has a positioning groove for independently engaging the lower end of the grid.

[0010] Furthermore, the storage hopper has a through hole on the side wall near the lower opening, which is open to both the inside and outside. A baffle is installed independently in the through hole, with one end of the baffle passing through the through hole and horizontally positioned inside the storage hopper.

[0011] Furthermore, the bottom of the bellows is fixed with a discharge trough that communicates with the discharge port, and a buffer pad is fixed on the inner wall of the discharge trough facing the discharge port.

[0012] Furthermore, the left side wall of the bellows is inclined, with the left side lower than the right side.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Feed falls freely from the hopper, creating large gaps between the feed pellets during the fall. The intake fan draws in outside air at high speed into the air box and directs it to the left, creating a stable airflow. This stable airflow evenly passes through the gaps between the feed pellets, effectively blowing away dust adhering to their surfaces and separating the dust from the feed pellets, thus improving dust removal efficiency. Simultaneously, the cleaning component continuously cleans the filter screen during use, ensuring it maintains effective filtration for an extended period, further guaranteeing dust removal efficiency for the feed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged view of region a in the middle; Figure 3 for Figure 1 Sectional view at point AA; Figure 4 This is a perspective view of the present utility model; Figure 5 This is an exploded view of the present invention; The components in the diagram are named as follows: 1. Air box; 2. Storage hopper; 3. Baffle; 4. Grille; 5. Intake fan; 6. Support leg; 7. Discharge trough; 8. Motor; 9. Top block; 10. Rotating rod; 11. Exhaust pipe; 12. Filter screen; 13. Dust collection box; 14. Outer shell. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. Example

[0016] The feed dust removal equipment described in this embodiment, such as Figure 1 , Figure 3 and Figure 5 As shown, the device includes a horizontally arranged bellows 1, with several vertically fixed supports 6 on the bellows 1. In this embodiment, four supports 6 are vertically fixed at the bottom of the bellows 1. The four supports 6 are evenly distributed at the four corners of the bottom of the bellows 1 to support the entire device and prevent the bellows 1 from directly contacting the ground. An air intake fan 5 for supplying air to the inside of the air box 1 is installed on its right side wall; such as Figure 1 and Figure 5 As shown, the intake fan 5 is an existing product, such as the YWF4E-300 from Hongke, the 300 model from Munters, and the 560# model from Minxin. In this embodiment, the intake fan 5 is installed on the right side wall of the air box 1 by screws. When in use, the intake fan 5 is activated, drawing external air into the air box 1 at high speed and flowing to the left, thus creating a continuous and stable airflow inside the air box. This airflow serves as a power source. When the feed falls freely from top to bottom, a large gap is created between the feed particles. As the feed passes through the inside of the intake fan 5, the airflow carries away the dust around the feed, causing the dust to detach from the surface of the feed particles and flow to the left side inside the air box, thereby achieving full separation of dust and feed particles. Because the feed particles are relatively heavy, they will only deviate slightly during the fall. By establishing a stable airflow in the air box 1 through the intake fan 5, the ability to carry feed dust is enhanced, making it easier for the dust to detach from the feed particles, effectively improving the dust removal effect. A grille 4 is vertically installed inside the air box 1. The grille 4 is located between the air intake fan 5 and the discharge port. The top of the air box 1 has a through hole that connects the inside and outside for independently inserting the upper end of the grille 4. The bottom of the air box 1 has a positioning groove for independently engaging the lower end of the grille 4. Figure 1 , Figure 4 and Figure 5As shown; during installation, insert the grille 4 from the top of the air box 1, aligning the lower end of the grille 4 with the positioning groove at the bottom of the air box 1, and slowly lower the grille 4 so that the lower end of the grille 4 accurately engages in the positioning groove, thus completing the installation and fixation of the grille 4 in the air box 1; during use, when the airflow passes through the grille 4, the grille 4 can straighten the airflow, making the originally turbulent airflow evenly distributed and reducing turbulence, allowing the airflow to flow smoothly, creating good conditions for the subsequent airflow to pass through the gaps between feed particles, improving dust removal efficiency. At the same time, the grille 4 can intercept larger impurities and long fiber materials in the air, preventing these materials from entering the subsequent dust removal process and causing blockage or damage to the filter screen 12; during subsequent cleaning, simply pull the grille 4 upward from the through hole at the top of the air box 1, so that the lower end of the grille 4 is disengaged from the positioning groove, and the entire grille 4 can be removed from the air box 1. After cleaning the grille 4, reinstall the grille 4 back into the air box 1 according to the installation stage operation; A storage hopper 2, communicating with the interior of the bellows 1, is fixed to the top of the bellows 1. A through-hole, communicating with the interior, is opened on the side wall of the storage hopper 2 near the lower opening. A baffle 3 is independently installed inside the through-hole, with one end of the baffle 3 passing through the through-hole and horizontally positioned inside the storage hopper 2. Figure 1 As shown, in its initial state, the left end of the baffle 3 is attached to the inner left side wall of the lower opening of the storage hopper 2. Before the dust removal operation begins, the feed to be processed is poured into the storage hopper 2 for temporary storage. At this time, the baffle 3 is in its initial position, blocking the lower opening to prevent the feed from falling out. When the feed needs to enter the air box 1 for dust removal, the baffle 3 is manually pulled at one end outside the storage hopper 2, causing the baffle 3 to slide in the perforation and change its position in the lower opening of the storage hopper 2. This adjusts the opening size of the lower opening, controls the flow rate of feed into the air box 1, and prevents the feed entering the air intake fan 5 from being too dense. This ensures that the airflow can pass through the gaps between the particles, improves the dust removal effect, and avoids reducing the processing efficiency of the equipment due to insufficient flow, ensuring that the dust removal process is stable and efficient. The aligned storage hopper 2 has a discharge port with internal and external communication at the bottom of the air box 1; such as Figure 1 and Figure 3 As shown, during use, the feed enters the air box 1 from the storage hopper 2. After passing through the dust removal inside the air box 1, the dust in the feed is effectively separated and carried to the left side inside the air box 1. The clean feed particles after dust removal will fall downwards under the action of gravity and be discharged from the air box 1 in an orderly manner through the discharge port. The bottom of the bellows 1 is inclined and a discharge trough 7 communicating with the discharge port is fixed thereon. A buffer pad is fixed on the inner wall of the discharge trough 7 facing the discharge port; such as Figure 1 , Figure 3 and Figure 5As shown, the discharge trough 7 is inclined at the front and high at the back, and the top of the discharge trough 7 is fixed to the bottom of the bellows 1. In this embodiment, the buffer pad is made of materials such as rubber, silicone, latex, and foam. During use, the clean feed particles discharged from the discharge port will slide down the inclined discharge trough 7 naturally. The staff can store the clean feed particles in the collection container at the bottom of the front end of the discharge trough 7. When the feed particles fall into the discharge trough 7, the buffer pad can cushion the feed particles, ensuring the integrity and quality of the feed, and effectively reducing the possibility of feed particles breaking and generating new dust. An exhaust pipe 11, communicating with the interior of the bellows 1, is vertically fixed to the left side of the bottom; such as Figure 1 As shown, the exhaust pipe 11 is located on the left side of the bottom of the air box 1, and the upper end of the exhaust pipe 11 is fixed to the bottom of the air box 1. The upper end of the exhaust pipe 11 is connected to the inside of the air box 1. When the airflow carrying dust flows to the left side of the inside of the air box 1, it will flow into the exhaust pipe 11 and be discharged from the lower end of the exhaust pipe 11. The left side wall of bellows 1 is inclined, with the left side lower than the right side; as shown... Figure 1 As shown, when the airflow comes into contact with the inclined left side wall, its direction of movement will deflect downward and flow towards the exhaust pipe 11 to prevent the airflow from accumulating and blocking at the left end of the air box 1. A filter screen 12 is detachably installed at an angle inside the exhaust pipe 11; in this embodiment, as... Figure 1 As shown, a step is fixedly installed on the inner wall of the exhaust pipe 11. The installation step is lower on the left and higher on the right. The filter screen 12 is fixed to the top of the installation step with screws for easy disassembly and maintenance. In use, when the airflow passes through the filter screen 12, the filter screen 12 can intercept and filter dust. Because the filter screen 12 is inclined, when there is too much dust, the dust will slide to the lower left under the action of gravity, thereby reducing the accumulation of dust on the filter screen 12 and extending the effective filtration time of the filter screen 12. To further explain, such as Figure 1 , Figure 2 and Figure 5As shown, the system includes a dust collection box 13. A housing 14 is fixed to the side wall of the exhaust pipe 11, corresponding to the downward-sloping side of the filter 12. A dust discharge port is provided on the side wall of the exhaust pipe 11, connecting the interior of the housing 14 to the interior of the exhaust pipe 11. The dust discharge port is aligned with the filter 12. An opening is provided on the front side wall of the housing 14, through which the dust collection box 13 is inserted. In use, dust-laden air is processed by the filter 12 and discharged through the exhaust pipe 11. The dust in the air is intercepted by the filter 12. Because the filter 12 is inclined downwards, the intercepted dust slides down the surface of the filter 12 under gravity. The sliding dust falls into the dust collection box 13 through the dust discharge port. Storage; when it is necessary to clean the dust in the dust collection box 13, pull the dust collection box 13 from the front to remove it from the outer shell 14, empty the dust, and then put it back into the outer shell 14; this solution constitutes a dust collection component for collecting dust; of course, the dust collection component can also use a collection bag, with a sleeve fixed to the side of the filter 12 that is tilted downwards, and a dust discharge port connected to the sleeve is opened on the side wall of the exhaust pipe 11. The dust discharge port is aligned with the filter 12, and the collection bag is fitted onto the sleeve. The sliding dust will fall into the collection bag through the dust discharge port for storage. When it is necessary to clean the dust in the collection bag, simply untie the collection bag, empty the dust, and then put it back onto the sleeve.

[0017] To further explain, such as Figure 1 and Figure 5 As shown, the system includes a motor 8, which is mounted on the side wall of the exhaust pipe 11. The output end of the motor 8 passes through the side wall of the exhaust pipe 11 and is located inside it. A rotating rod 10 perpendicular to the output end of the motor 8 is fixed to the output end of the motor 8. Top blocks 9 for pushing the filter screen 12 are fixed to both ends of the rotating rod 10. In this embodiment, the motor 8 is mounted on the right side wall of the exhaust pipe 11. When in use, the motor 8 is started, which drives the rotating rod 10 to rotate. During the rotation process, the rotating rod 10 will drive the top blocks 9 at its end to push the filter screen 12 upward. During the continuous rotation of the rotating rod 10, it will continuously push the filter screen 12 upward, causing the filter screen 12 to shake, thereby forcing the dust on the filter screen 12 to fall off and move to the lower left, and be discharged into the dust collection box 13. Top block 9 has a spherical structure, such as Figure 1 and Figure 5 As shown, the spherical structure can reduce the contact area between the top block 9 and the filter screen 12, thereby reducing friction and making the rotating rod 10 easier and more convenient to rotate. Its core principle is to use the inertial force generated by shaking to overcome the static friction between dust and filter screen 12. The motor 8 drives the rotating rod 10 to periodically bump the filter screen 12, causing it to vibrate violently. When the filter screen 12 is rapidly lifted upward, due to inertia, the dust tends to maintain its original state, thus causing relative displacement with the accelerating upward filter screen 12. Subsequently, when the storage hopper 2 returns to its original position, the dust tends to "suspend" due to inertia, further detaching from the filter screen 12. This alternating inertial force cycle continuously disrupts the dust's adhesion balance. Once the dust is no longer stationary, the tilt angle makes the component of gravity along the surface of the filter screen 12 dominant, continuously pulling the loosened dust particles downward, ultimately achieving the effect of cleaning the dust. This allows the filter screen 12 to maintain effective filtration for a long time, ensuring the dust removal effect of the feed. This solution constitutes a cleaning component for cleaning dust on the filter screen 12. Of course, the cleaning component can also use a scraper. The scraper is horizontally located inside the exhaust pipe 11 and is in contact with the upper surface of the filter screen 12. A through hole is opened on the right side wall of the exhaust pipe 11 in a left-low-right-high shape. A connecting rod is installed in the through hole, and the left end of the connecting rod is fixed to the scraper. In use, by pushing and pulling the connecting rod, the connecting rod drives the scraper to move along the upper surface of the filter screen 12. The scraper drives the dust on it to move to the lower left and discharge it into the dust collection box 13 for storage.

[0018] In actual use, before dust removal, the feed to be processed is poured into the storage hopper 2 for temporary storage. At this time, the baffle 3 initially blocks the lower hopper opening to prevent the feed from falling. During dust removal, the size of the lower hopper opening is adjusted by manually pulling the baffle 3 to control the flow rate of feed into the air box 1, allowing the feed to fall freely. The intake fan 5 is started to draw external air into the air box 1 at high speed and flow to the left to form a stable airflow. The airflow carries the dust around the falling feed off the surface of the feed particles and flows to the left, realizing the separation of dust and feed particles. The dust in the feed is carried by the airflow to the left side of the air box 1 and enters the exhaust pipe 11, where it is intercepted and filtered by the inclined filter screen 12. At the same time, the motor 8 drives the rotating rod 10. During the rotation of the rotating rod 10, the top block 9 pushes the filter screen 12 upward, causing the filter screen 12 to shake and causing the dust to fall off and slide into the dust collection box 13. The clean feed particles after dust removal pass through the discharge port under the action of gravity, are buffered by the discharge trough 7 and its buffer pad, and are discharged, completing the entire dust removal process. During use, when the feed falls freely from top to bottom, large gaps will be generated between the feed particles. The air intake fan 5 can form a continuous and stable airflow, which provides power for the airflow to pass through the gaps between the feed particles. The stable airflow can evenly pass through the gaps between the feed particles, and fully blow away the dust attached to the surface of the particles, thereby effectively improving the dust removal effect.

Claims

1. A feed dust removal device, comprising a horizontally arranged bellows (1), with a plurality of vertically fixed supports (6) on the bellows (1), characterized in that: An air intake fan (5) for supplying air to the inside of the air box (1) is installed on the right side wall. A storage hopper (2) communicating with the inside of the air box (1) is fixed on the top of the air box (1). A discharge port communicating with the inside and outside is opened at the bottom of the air box (1) aligned with the storage hopper (2). An exhaust pipe (11) communicating with the inside of the air box (1) is vertically fixed on the left side of the bottom of the air box (1). A filter screen (12) is installed in the exhaust pipe (11) in an inclined shape and is detachably installed. A dust collection component for collecting dust is provided on the exhaust pipe (11). A cleaning component for cleaning dust on the filter screen (12) is provided on the exhaust pipe (11).

2. The feed dust removal equipment according to claim 1, characterized in that: The cleaning assembly includes a motor (8), which is mounted on the side wall of the exhaust pipe (11). The output end of the motor (8) passes through the side wall of the exhaust pipe (11) and is located inside it. A rotating rod (10) perpendicular to the output end of the motor (8) is fixed on the output end of the motor (8). Top blocks (9) for pushing the filter screen (12) are fixed on both ends of the rotating rod (10).

3. The feed dust removal equipment according to claim 2, characterized in that: The top block (9) has a spherical structure.

4. The feed dust removal equipment according to claim 1, characterized in that: The dust collection assembly includes a dust collection box (13), and a housing (14) is fixed on the side wall of the exhaust pipe (11) corresponding to the downward tilt of the filter (12). A dust discharge port is opened on the side wall of the exhaust pipe (11) to connect the inside of the housing (14) with the inside of the exhaust pipe (11). The dust discharge port is aligned with the filter (12). An opening is opened on the front side wall of the housing (14), and the dust collection box (13) is inserted into the housing (14) through the opening.

5. The feed dust removal equipment according to claim 1, characterized in that: The air box (1) is vertically provided with a grille (4), which is located between the air intake fan (5) and the discharge port. The top of the air box (1) has a through hole that is open to the inside and outside and is used to independently insert the upper end of the grille (4). The bottom of the air box (1) has a positioning groove for independently engaging the lower end of the grille (4).

6. The feed dust removal equipment according to claim 1, characterized in that: The storage hopper (2) has a through hole on the side wall near the lower opening, and a baffle (3) is installed independently inside the through hole. One end of the baffle (3) passes through the through hole and is horizontally located inside the storage hopper (2).

7. The feed dust removal equipment according to claim 1, characterized in that: The bottom of the bellows (1) is inclined and a discharge trough (7) communicating with the discharge port is fixed thereon. A buffer pad is fixed on the inner side wall of the discharge trough (7) facing the discharge port.

8. The feed dust removal equipment according to claim 1, characterized in that: The left side wall of the bellows (1) is inclined with the left side lower than the right side.

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