Drying and impurity removing device for feed additive

Abstract

The utility model provides a drying and impurity-removing device for feed additives, which comprises a box body, a material conveying barrel for mounting a feeding component is arranged in the box body, a feeding box is vertically arranged on the material conveying barrel, when raw materials enter the material conveying barrel through the feeding box, a screw rod piece with blades in the feeding component drives the raw materials to move under the cooperation of a driver, and the raw materials are conveyed to the feeding box through the screw rod piece. When the raw materials move from the material conveying barrel to the sieving plate arranged below the material conveying barrel, the raw materials move along the inclination angle of the sieving plate, and the large-particle impurities in the raw materials are blocked in the material conveying barrel, so that primary impurity removal of the raw materials is realized; in the moving process, small-particle impurities can be discharged from the screening plate, so that secondary impurity removal of the raw materials is achieved, a plurality of heating pieces are arranged in the box body, hot air can enter the material conveying barrel through overflow holes, the raw materials on the screening plate are dried, impurity removal and drying of the raw materials are conducted at the same time, and the operation efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of feed processing equipment technology, and in particular to a drying and impurity removal device for feed additives. Background Technology

[0002] Feed additives refer to small or trace amounts of substances added during feed production, processing, and use. Although they do not directly serve as nutrients for animals, they can significantly improve feed performance, animal health, or product quality. During the raw material production process, feed additives may contain impurities such as metal fragments, mud, hair, and plastic. Direct feeding may damage the animal's digestive tract. Therefore, feed additives need to be screened to remove impurities to ensure feed safety. To prevent mold and bacteria growth and spoilage of feed raw materials due to high moisture content during transportation, drying is performed. However, existing drying and impurity removal devices use two different pieces of equipment, requiring manual back-and-forth handling, which reduces processing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a drying and impurity removal device for feed additives in order to solve the above-mentioned problems.

[0004] The technical solution of this application is implemented as follows:

[0005] This application provides a drying and impurity removal device for feed additives, including a box, a conveying cylinder inside the box, a feeding component inside the conveying cylinder, the feeding component including a screw, the screw having blades distributed in a spiral shape, one end of the screw extending to the outside of the box and connected to a driver.

[0006] A feed box is vertically installed on the feed cylinder, with one end of the feed box extending to the outside of the box body. The inside of the feed box is connected to the inside of the feed cylinder. An overflow hole is provided on the feed cylinder to connect the inside of the feed cylinder with the outside. Several overflow holes are provided and evenly distributed on the feed cylinder.

[0007] The box is also equipped with an inclined storage seat with a sieve plate. The sieve plate is located below the conveying cylinder. The box has a discharge port. One end of the storage seat extends to the outside of the discharge port, so that part of the sieve plate is located outside the box.

[0008] Several heating elements are also installed around the inner wall of the chamber, with the output end of the heating elements facing the sieve plate.

[0009] In one embodiment, the storage base is provided with receiving grooves on both sides, and the receiving grooves are provided with displacement driving components. The displacement driving components include lead screw components, which are rotatably disposed in the receiving grooves. One end of the lead screw components is connected to a rotating motor, and a bearing seat is installed on the lead screw components.

[0010] The support base is provided with a first push rod component, and a support plate is installed on the piston end of the first push rod component. One end of the support plate extends to the top of the sieve plate and is provided with a material blocking plate. Through the cooperation of the first push rod component, a material flow area is formed between the material blocking plate and the sieve plate.

[0011] The displacement drive components work together to make the two sets of resistance plates parallel or staggered.

[0012] In one embodiment, the material blocking plate has inclined ends at both ends, and magnetic blocks are provided inside the inclined ends, so that a magnetic layer is formed on the side of the inclined ends facing the sieve plate.

[0013] In one embodiment, a collection box is further provided inside the box, the collection box having a cavity extending to the outside of the collection box, and the collection box is located below the sieve plate.

[0014] The bottom of the collection box is equipped with a discharge hopper, one end of which extends to the outside of the box body.

[0015] In one embodiment, the housing is further provided with a blocking assembly, which includes a second push rod component disposed on the housing and located above the discharge port;

[0016] The piston end of the second push rod component is connected to a baffle. Through the cooperation of the second push rod component, the baffle is moved closer to or away from the sieve plate.

[0017] When the bottom end of the baffle comes into contact with the end face of the sieve plate, the baffle covers the discharge port.

[0018] In one embodiment, a feeding hopper is provided on the top of the feeding box, and an inclined part is provided at the connection between the feeding hopper and the feeding box.

[0019] In one embodiment, a vibration motor is also provided on the outside of the housing, and the vibration motor is located below the driver.

[0020] In one embodiment, the bottom of the box is provided with support legs, and several support legs are provided and evenly distributed around the box. Through the cooperation of the support legs, a gap is formed between the box and the ground.

[0021] The discharge hopper is located within the gap.

[0022] The advantages or beneficial effects of the above technical solutions include at least the following:

[0023] This application discloses a drying and impurity removal device for feed additives. The device transports raw materials from a feed hopper to a conveying cylinder, where a feeding component moves the materials. Overflow holes are evenly distributed on the conveying cylinder, allowing some raw materials to be discharged and moved to a sieve plate below the cylinder. Large particles or impurities remain in the conveying cylinder, achieving initial impurity removal. As the material moves along the inclined angle of the sieve plate, fine particles fall through the sieve holes, further removing impurities. Several heating elements are installed inside the chamber, heating the air within the chamber. This allows hot air to enter the conveying cylinder through the overflow holes for drying, and also heats the sieve plate, ensuring feed drying. This device enables multiple impurity removal operations on feed raw materials, guaranteeing product quality and improving processing efficiency. Attached Figure Description

[0024] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the description thereof, serve to explain the principles of the present application. These drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification.

[0025] Figure 1 A structural schematic diagram from a cross-sectional perspective of an embodiment of this application is shown;

[0026] Figure 2 A structural schematic diagram from one perspective of an embodiment of this application is shown;

[0027] Figure 3 A structural schematic diagram of the storage stand according to an embodiment of this application is shown;

[0028] Figure 4 A structural schematic diagram of the box body from a cross-sectional perspective according to an embodiment of this application is shown;

[0029] Figure 5 Examples of this application are presented. Figure 1 Enlarged view of point A in the middle;

[0030] Figure 6 Examples of this application are presented. Figure 3 Enlarged view of point B in the middle;

[0031] Attached reference numerals: 1. Housing; 11. Discharge port; 12. Vibration motor; 13. Support legs; 14. Control panel;

[0032] 2. Feeding cylinder; 21. Feed box; 211. Feed hopper; 22. Overflow hole;

[0033] 3. Feeding components; 31. Screw; 311. Blades; 32. Driver;

[0034] 4. Storage base; 41. Sieve plate; 42. Receiving trough;

[0035] 5. Heating element;

[0036] 6. Displacement drive assembly; 61. Lead screw assembly; 62. Rotary motor; 63. Bearing base;

[0037] 7. First push rod assembly; 71. Support plate; 72. Material blocking plate; 721. Inclined end; 722. Magnetic block;

[0038] 8. Collection bin; 81. Discharge hopper;

[0039] 9. Blocking assembly; 91. Second push rod assembly; 92. Baffle. Detailed Implementation

[0040] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0041] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this application are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0043] It should be noted that the terms "a" and "several" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0044] The names of the messages or information exchanged between multiple devices in the embodiments of this application are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0045] Reference Figures 1-4 A drying and impurity removal device for feed additives includes a housing 1, a conveying cylinder 2 installed inside the housing 1 via a flange, and a feeding component 3 inside the conveying cylinder 2. The feeding component 3 includes a screw 31 with helically distributed blades 311. One end of the screw 31 extends to the outside of the housing 1 and is connected to a driver 32. The driver 32 is a servo drive motor as used in the prior art. The driver 32 and the screw 31 are connected by a coupling. When the screw 31 rotates with the help of the driver 32, a continuous spiral conveying channel can be formed. The driver 32 drives the screw 31 to rotate clockwise or counterclockwise, and the blades 311 rotate synchronously with the screw. When the material falls from the feed box 21 into the conveying cylinder 2, the spiral surface of the blades 311 pushes the material to move along the axial direction of the conveying cylinder 2. The thrust of the blades 311 pushes the material particles forward. At the same time, the centrifugal force of the spiral motion makes the material tumble in the conveying cylinder 2, avoiding particle agglomeration.

[0046] A feed box 21 is vertically mounted on the feed cylinder 2, with one end extending to the outside of the housing 1. The feed box 21 is used to transport external raw materials into the feed cylinder 2. The interior of the feed box 21 is connected to the interior of the feed cylinder 2. A feed hopper 211 is mounted on the top of the feed box 21. An inclined section is provided at the connection between the feed hopper 211 and the feed box 21. The inclined section changes the flow direction of the material, allowing the material to enter the feed box 21 more smoothly by gravity, avoiding material stagnation caused by right-angle connections or smooth transitions, and reducing material retention during feeding. The residue at the bottom of the hopper 211 is easy to clean and maintain. The conveying cylinder 2 is provided with an overflow hole 22 to connect the inside of the conveying cylinder 2 with the outside. Several overflow holes 22 are provided and evenly distributed on the conveying cylinder 2. When the material flows in the conveying cylinder 2, the material smaller than the diameter of the overflow hole 22 flows out of the conveying cylinder 2 through the overflow hole 22, while the material larger than the diameter of the overflow hole 22 is blocked, so that large particles of impurities can be separated from the material. The clumps of material are repeatedly rotated in the conveying cylinder 2 to loosen them and achieve the initial removal of impurities from the material.

[0047] Inside the housing 1, a storage seat 4 is also inclined and fixed inside the housing 1 at an angle of 15-30 degrees. The storage seat 4 has a sieve plate 41, which is located below the conveying cylinder 2. The housing 1 has a discharge port 11, and one end of the storage seat 4 extends to the outside of the discharge port 11, so that part of the sieve plate 41 is located outside the housing 1. The diameter of the sieve holes on the sieve plate 41 is smaller than the diameter of the overflow hole 22. The part of the sieve plate 41 located outside the housing 1 does not have a sieve hole. When material falls from the conveying cylinder 2 onto the sieve plate 41, it slides along the sieve plate 41 toward the discharge port 11 under the action of gravity and the tilt angle. Since the diameter of the sieve hole of the sieve plate 41 is different from the diameter of the overflow hole 22, the smaller part of the material falls to the bottom of the box 1 through the sieve plate 41, while the standard part is conveyed to the outside of the box 1 and collected with the cooperation of the sieve plate 41, thereby completing the second removal of impurities from the material and ensuring that the collected feed additive particles all meet the standards.

[0048] Several heating elements 5 are also provided around the inner wall of the box 1. The heating elements 5 are electric heating plates driven by electrical energy in the prior art. The box 1 is provided with perforations for the wires to pass through the heating elements 5. The output end of the heating element 5 faces the sieve plate 41. The heating elements 5 are located on both sides of the sieve plate 41 and above the discharge port 11. After the heating elements 5 are powered on, they heat up and radiate heat to the sieve plate 41 or heat the air inside the box 1 to form a heat circulation. When the material slides on the sieve plate 41, it comes into contact with the hot air or conducts heat through the sieve plate. The moisture evaporates and is discharged through the exhaust hole provided on the top of the box 1 to realize the drying operation of the material.

[0049] Based on the above structure, the raw materials to be processed are inverted and placed in the feed box 21. The raw materials enter the conveying cylinder 2 through the feed box 21. Since the conveying cylinder 2 is equipped with a feeding component 3, the screw 31 rotates in cooperation with the driver 32, thereby driving the spirally distributed blades 311 to rotate, so that the raw materials move in the direction of rotation of the blades 311. The conveying cylinder 2 is evenly distributed with overflow holes 22. During the movement of the raw materials, the raw materials smaller than the diameter of the overflow holes 22 will fall onto the sieve plate 41 through the overflow holes 22, while the raw materials larger than the diameter of the overflow holes 22, if they are clumped together, will be dispersed in the conveying cylinder 2 by rotation. Large particles of hard impurities will remain in the conveying cylinder 2, thus achieving preliminary removal of the raw materials. The material is cleaned by multiple heating elements 5 inside the housing 1. When the raw material is in the conveying cylinder 2, the air heated by the heating elements 5 enters the conveying cylinder 2 through the overflow hole 22 to dry the raw material. When the raw material is on the sieve plate 41, it flows along the inclined angle of the sieve plate 41, and the debris and small impurities in the raw material are discharged through the sieve holes of the sieve plate 41, thereby completing the secondary impurity removal operation of the raw material. The drying operation is always carried out during the flow process, so that the raw material is kept dry after the impurity removal is completed. The combination of the conveying cylinder 2 and the sieve plate 41 can realize the dual impurity removal operation of the raw material and the drying treatment under the action of the heating elements 5, which solves the problem that the existing impurity removal device can only perform a single operation, resulting in low processing efficiency.

[0050] In one embodiment, reference is made to Figure 1 , Figure 3 and Figure 6 The storage base 4 has receiving grooves 42 on both sides. The receiving grooves 42 are equipped with displacement driving components 6. The displacement driving components 6 include a lead screw component 61, which is rotatably disposed in the receiving groove 42. A lead screw bearing seat is provided at the connection between the lead screw component 61 and the receiving groove 42. One end of the lead screw component 61 is connected to a rotary motor 62. A bearing seat 63 is installed on the lead screw component 61. The rotary motor 62 drives the lead screw component 61 to rotate, and the lead screw component 61 converts the rotational motion into linear motion, thereby driving the bearing seat 63 to move along the direction of the receiving groove 42 on the lead screw component 61.

[0051] A first push rod component 7 is provided on the support base 63. The first push rod component 7 is a pneumatic push rod or an electric push rod in the prior art. The housing 1 has an opening through which the wiring of the first push rod component 7 passes. A support plate 71 is installed on the piston end of the first push rod component 7. One end of the support plate 71 extends above the sieve plate 41 and is provided with a material blocking plate 72. Through the cooperation of the first push rod component 7, a material flow area is formed between the material blocking plate 72 and the sieve plate 41. The cooperation of the first push rod component 7 allows the size of the material flow area between the material blocking plate 72 and the sieve plate 41 to be flexibly adjusted. The feed additive feeding speed can be adjusted to reduce the material flow rate by narrowing the flow area to avoid material accumulation. Conversely, increasing the flow area can speed up the feeding speed to adapt to different processing volume requirements. This precise flow control helps ensure the stability of the subsequent drying and impurity removal processes, making the material evenly distributed on the sieve plate 41, improving drying efficiency and impurity removal effect. At the same time, the baffle plate 72, in cooperation with the displacement drive component 6, can move the raw material to avoid some raw material from accumulating and causing the operation to fail to penetrate and dry.

[0052] With the cooperation of the displacement drive component 6, the two sets of material blocking plates 72 are arranged in parallel or staggered manner. When they are parallel, the flow path of the material on the sieve plate 41 is relatively regular, which is suitable for the initial uniform dispersion and initial screening of the material. When they are staggered, the material blocking plates 72 form a complex flow channel, which can generate a stronger blocking and turning effect on the material, so that the material can fully contact the sieve plate 41 during the screening process, improve the accuracy of impurity screening, and at the same time, allow the material to fully contact the hot air during the drying process, thus improving the drying effect.

[0053] In one embodiment, reference is made to Figure 1 , Figure 3 , Figure 5 and Figure 6 The material blocking plate 72 has inclined ends 721 at both ends. When the material passes through the flow area between the material blocking plate 72 and the sieve plate 41, the inclined angle of the inclined ends 721 guides the material to flow towards the sieve plate 41. The inclined ends 721 are equipped with magnetic blocks 722, so that a magnetic layer is formed on the side of the inclined ends 721 facing the sieve plate 41. Since some iron filings may be mixed in during the processing of feed additive raw materials, the magnetic layer formed by the magnetic blocks 722 can effectively adsorb the metallic magnetic impurities in the feed additives. As an additional barrier in the impurity removal process, it is combined with the mechanical screening of the sieve plate 41 to achieve dual impurity removal and improve the purity of the feed additives.

[0054] In one embodiment, reference is made to Figure 1 and Figure 4The box 1 is also equipped with a collection box 8. The collection box 8 has a cavity extending to the outside of the collection box 8. The collection box 8 is located below the sieve plate 41. The collection box 8 is located below the sieve plate 41, which can collect the sieved material in time and prevent the material from falling directly to the bottom of the box 1 and causing accumulation, which would affect the normal operation of the device. In addition, the cavity design extending from the inside to the outside increases the collection space, which can hold more material, reduce the number of unloading times, and improve the continuous working capacity of the device.

[0055] The bottom of the collection box 8 is provided with a discharge hopper 81. One end of the discharge hopper 81 extends to the outside of the box body 1. A solenoid valve can be installed inside the discharge hopper 81 to control the opening and closing of the discharge hopper 81 opening. The discharge hopper 81 allows the collected material to be easily discharged from the box body 1. It can be directly connected to external conveying equipment or collection containers to realize the automated transmission and collection of materials.

[0056] In one embodiment, reference is made to Figure 1 and Figure 2 The housing 1 is also provided with a blocking assembly 9, which includes a second push rod component 91. The second push rod component 91 is disposed on the housing 1 and located above the discharge port 11. The second push rod component 91 adopts a pneumatic push rod or an electric push rod in the prior art. The piston end of the second push rod component 91 is connected to a baffle 92. Through the cooperation of the second push rod component 91, the baffle 92 is brought closer to or away from the sieve plate 41. When the piston end of the second push rod component 91 extends, the baffle 92 is close to the sieve plate 41. When the piston end retracts, the baffle 92 is away from the sieve plate 41.

[0057] When the bottom end of the baffle 92 abuts against the end face of the sieve plate 41, the baffle 92 covers the discharge port 11. Through the cooperation of the second push rod component 91 and the baffle 92, the opening and closing of the discharge port 11 can be precisely controlled. During the drying and impurity removal process, the discharge port 11 can be closed according to process requirements when the material is not completely dried or insufficiently screened to prevent unqualified materials from being discharged prematurely; when the material processing meets the requirements, the discharge port 11 can be opened to allow qualified materials to be discharged smoothly, ensuring product quality and improving the flexibility and controllability of the device in operation.

[0058] In one embodiment, reference is made to Figure 1 and Figure 4The exterior of the housing 1 is also equipped with a vibration motor 12, which is located below the driver 32. The vibration motor 12 can generate horizontal vibration, causing the sieve plate 41 to vibrate. Under the action of vibration, the material is easier to pass through the sieve holes, improving the screening efficiency. For feed additives with small particle size or easy agglomeration, vibration can break the agglomeration force between material particles, making the material more evenly dispersed, ensuring that impurities can be screened out in time, and improving the impurity removal effect. At the same time, vibration helps the material to come into full contact with hot air, increasing the surface area of ​​the material exposed to hot air, accelerating the evaporation rate of moisture, and improving the drying efficiency.

[0059] In one embodiment, reference is made to Figure 1 , Figure 2 and Figure 4 The bottom of the box 1 is provided with support legs 13. Several support legs 13 are provided and evenly distributed around the box 1. With the cooperation of the support legs 13, a gap is formed between the box 1 and the ground. The side of the support legs 13 facing the ground is provided with an anti-slip pad. Part of the discharge hopper 81 is located in the gap. The space above the ground allows forklift forks or conveyor belts to be directly inserted, which is convenient for handling the box 1. The bottom gap forms a natural convection channel, which can play a role in moisture prevention and ventilation. At the same time, the existence of the gap allows the discharge hopper 81 to extend smoothly to the outside of the box 1 without the need to raise the box 1 or make special treatment to the ground, which is convenient for connection with external discharge equipment.

[0060] In one embodiment, reference is made to Figure 2 The housing 1 is equipped with a control panel 14, which is electrically connected to the driver 32, heating element 5, vibration motor 12 and rotation motor 62. The control panel 14 integrates a PLC control system, which can realize real-time adjustment of the parameters of each component and achieve automated control through programming.

[0061] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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 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. Therefore, they should not be construed as limitations on this application.

[0062] Those skilled in the art should understand that the above embodiments are merely for illustrative purposes and are not intended to limit the scope of this application. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of this application.

Claims

1. A drying and impurity removal device for feed additives, characterized in that: The device includes a housing, a conveying cylinder is provided inside the housing, a feeding component is provided inside the conveying cylinder, the feeding component includes a screw, the screw has blades distributed in a spiral shape, one end of the screw extends to the outside of the housing and is connected to a driver; A feed box is vertically arranged on the feed cylinder, one end of which extends to the outside of the box body. The inside of the feed box is connected to the inside of the feed cylinder. An overflow hole is provided on the feed cylinder to connect the inside of the feed cylinder with the outside. Several overflow holes are provided and evenly distributed on the feed cylinder. The box is also provided with an inclined storage seat, which has a sieve plate located below the conveying cylinder. The box has a discharge port, and one end of the storage seat extends to the outside of the discharge port, so that part of the sieve plate is located outside the box. Several heating elements are also provided around the inner wall of the box, with the output end of the heating elements facing the sieve plate.

2. The drying and impurity removal device for feed additives according to claim 1, characterized in that: The storage base has receiving slots on both sides, and each receiving slot is provided with a displacement driving assembly. The displacement driving assembly includes a lead screw component, which is rotatably disposed in the receiving slot. One end of the lead screw component is connected to a rotating motor, and a bearing seat is installed on the lead screw component. The support base is provided with a first push rod component, and a support plate is installed on the piston end of the first push rod component. One end of the support plate extends to the top of the sieve plate and is provided with a material blocking plate. Through the cooperation of the first push rod component, a material flow area is formed between the material blocking plate and the sieve plate. Through the cooperation of the displacement driving components, the two sets of resistive plates are arranged in parallel or staggered order.

3. The drying and impurity removal device for feed additives according to claim 2, characterized in that: The material blocking plate has inclined ends at both ends, and magnetic blocks are provided inside the inclined ends, so that a magnetic layer is formed on the side of the inclined ends facing the sieve plate.

4. The drying and impurity removal device for feed additives according to claim 1, characterized in that: The box body is also provided with a collection box, which has a cavity extending to the outside of the collection box, and the collection box is located below the sieve plate; The bottom of the collection box is provided with a discharge hopper, one end of which extends to the outside of the box body.

5. The drying and impurity removal device for feed additives according to claim 1, characterized in that: The housing is also provided with a blocking assembly, which includes a second push rod component, which is disposed on the housing and located above the discharge port; The piston end of the second push rod component is connected to a baffle. Through the cooperation of the second push rod component, the baffle is moved closer to or away from the sieve plate. When the bottom end of the baffle comes into contact with the end face of the sieve plate, the baffle covers the discharge port.

6. The drying and impurity removal device for feed additives according to claim 1, characterized in that: The top of the feed box is provided with a feed hopper, and the connection between the feed hopper and the feed box is provided with an inclined part.

7. The drying and impurity removal device for feed additives according to claim 1, characterized in that: A vibration motor is also installed on the outside of the housing, and the vibration motor is located below the driver.

8. The drying and impurity removal device for feed additives according to claim 4, characterized in that: The bottom of the box is provided with support legs. Several support legs are provided and evenly distributed around the box. The support legs work together to create a gap between the box and the ground. Part of the discharge hopper is located within the gap.

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