Feed impurity removing device for aquatic animal drug production

Abstract

The utility model relates to a kind of feed impurity removal devices for aquatic animal drugs production. Including support, feed cylinder body with bottom plane is fixedly connected on it, discharge port and several filter holes are opened in the bottom of feed cylinder body, residue discharge chute and swing valve assembly are installed at discharge port, further including discharge hopper covered in several filter holes outside;Stirring assembly is arranged in the inner chamber of feed cylinder body, and it is rotationally connected with the bottom surface and adheres to stirring assembly, further including stirring motor;Stirring assembly includes stirring shaft, shaft seat plate is fixedly connected on stirring shaft and detachably connected with stirring mechanism, stirring pushing mechanism is detachably installed on stirring mechanism;Further including scattering subassembly installed in the top feed port of feed cylinder body. The utility model realizes the full crushing and uniform dispersion of powder raw material, realizes sealing discharge control with swing valve assembly, has the advantages of effectively solving the problem of powder raw material caking, improving impurity screening efficiency and ensuring the sealing property of discharge.

Description

Technical Field

[0001] This utility model belongs to the technical field of veterinary drug production equipment, and in particular relates to a feeding and impurity removal device for aquatic veterinary drug production. Background Technology

[0002] Veterinary drugs refer to substances (including medicated feed additives) used to prevent, treat, or diagnose animal diseases or to purposefully regulate animal physiological functions. Veterinary drugs mainly include: serum products, vaccines, diagnostic products, microecological products, Chinese medicinal materials, prepared Chinese medicines, chemical drugs, antibiotics, biochemical drugs, radioactive drugs, and external insecticides and disinfectants.

[0003] In veterinary drug production, the handling of powdered raw materials is particularly crucial. In existing technologies, powdered materials are directly fed from the feed tank to the production equipment for mixing. This process has significant drawbacks: firstly, long-term storage of powdered raw materials easily leads to moisture absorption and clumping, forming clumps of varying sizes, severely affecting the uniformity of the raw materials; secondly, existing feeding systems lack effective pretreatment devices to remove impurities from the raw materials. These problems directly result in inaccurate ingredient ratios and uneven mixing in subsequent production processes, ultimately affecting product quality. This is especially true in the aquatic veterinary drug production sector, where the requirements for the purity and uniformity of raw materials are even more stringent, and existing feeding methods are no longer sufficient. Furthermore, traditional equipment suffers from insufficient sealing and inconvenient operation in terms of discharge control. Therefore, there is an urgent need to design a feeding and impurity removal device for aquatic veterinary drug production to solve these problems. Summary of the Invention

[0004] This invention provides a feeding and impurity removal device for aquatic veterinary drug production with a reasonable structural design to solve the technical problems existing in the prior art. This invention achieves thorough crushing and uniform dispersion filtration of powder raw materials through the synergistic action of the stirring and dispersing components, and achieves sealed discharge control with the swing valve component. It has the advantages of effectively solving the problem of powder raw material agglomeration, improving impurity screening efficiency, and ensuring the sealing of the discharge.

[0005] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows: A feeding and impurity removal device for aquatic veterinary drug production includes a support frame, a feeding cylinder with a flat bottom fixed to the support frame, a discharge port and several filter holes opened at the bottom of the feeding cylinder, a slag discharge slide and a swing valve assembly installed at the discharge port, and a discharge hopper fixed to the bottom of the feeding cylinder and covering the several filter holes; a stirring assembly rotatably connected to and in contact with the bottom surface of the feeding cylinder is provided in the inner cavity of the feeding cylinder, and a stirring motor for driving the stirring assembly to rotate is also included; the stirring assembly includes a stirring shaft connected to the output shaft of the stirring motor, a shaft seat plate fixed to the stirring shaft and a stirring mechanism detachably connected to the shaft seat plate, and a stirring pushing mechanism detachably installed on the stirring mechanism; and a dispersing assembly installed at the top feed port of the feeding cylinder for dispersing the feed.

[0006] The advantages and positive effects of this utility model are as follows: This utility model provides a feeding and impurity removal device for aquatic veterinary drug production, which integrates raw material crushing and screening through a multi-layer processing structure. The planar bottom design of the feeding cylinder facilitates uniform material distribution, and the partitioned setting of the discharge port and filter holes enables dual-channel control for impurity separation and qualified material collection. The swing valve assembly achieves automatic slag discharge by dynamically opening and closing the discharge port, while the discharge hopper specifically collects qualified material passing through the filter holes. The stirring assembly, through its rotational motion and bottom-fitting structural design, pushes the material to complete the screening operation while crushing agglomerates. The detachable rotating shaft seat plate design facilitates maintenance and replacement of different stirring mechanisms. The detachable and adjustable stirring and pushing mechanism can adapt to the physical characteristics of different materials, and the special shape design of the pushing rod enhances the material mixing effect. The top dispersing component performs preliminary crushing of agglomerated raw materials during the feeding stage, forming a dual crushing guarantee mechanism with the secondary stirring inside the cylinder, effectively preventing material caking from affecting subsequent processes. Compared with the prior art, traditional equipment uses a vibrating screen for single screening, which cannot handle agglomerated materials and requires an additional crusher. This invention integrates crushing, mixing, and screening functions into one unit. Its flat bottom structure facilitates material spreading compared to traditional conical screens. A swing valve assembly replaces the traditional manual slag discharge gate, enabling automated control.

[0007] Preferably, it also includes a discharge shaft that passes through the bottom of the feed cylinder and is rotatably connected thereto. The discharge shaft is connected to the stirring assembly, and a discharge spiral blade located in the discharge hopper is wound on the discharge shaft.

[0008] Preferably, the dispersing assembly includes a dispersing box that is connected to the inlet of the feeding cylinder and mounted on the top of the feeding cylinder through several box legs. A dispersing grid is installed in the inner cavity of the dispersing box, and several grid channels are installed on the dispersing grid in an array. The assembly also includes a stirring and dispersing mechanism that is rotatably connected to the dispersing box and passes through the several grid channels, and a rotary drive mechanism for driving the stirring and dispersing mechanism to rotate.

[0009] Preferably, the mixing and dispersing mechanism includes a dispersing shaft that is rotatably connected to the dispersing box and arranged laterally. The dispersing shaft is located below the dispersing grid. It also includes multiple sets of mixing blade units that are fixed to the dispersing shaft and evenly distributed along its circumference. Each mixing unit includes several dispersing mixing blades that are evenly distributed along the axis of the dispersing shaft. When the dispersing shaft rotates, the multiple sets of mixing blade units pass through several grid channels in sequence.

[0010] Preferably, the stirring mechanism includes a plate detachably connected to the rotating shaft seat plate, a transversely arranged shaft mounting seat fixedly connected to the plate, and longitudinally arranged stirring connecting rods detachably connected to both ends of the shaft mounting seat. A stirring component one and a stirring component two are respectively fixedly connected to the two stirring connecting rods, both of which have a plow-shaped structure. The stirring and pushing mechanism includes at least two sets of stirring shafts arranged transversely and detachably connected to the shaft mounting seat. A stirring vertical plate one is detachably connected to one end of each stirring shaft, and a pushing rod one is installed through several stirring vertical plates one. A stirring vertical plate two is detachably connected to the other end of each stirring shaft, and a pushing rod two is installed through several stirring vertical plates two. The pushing rod one is S-shaped, and the pushing rod two is arc-shaped.

[0011] Preferably, the swing valve assembly includes a longitudinally arranged mounting bushing fixed to the outer wall of the feed cylinder, a drive shaft rotatably connected to the mounting bushing, a swing valve plate adapted to a discharge port at the bottom of the feed cylinder mounted at the lower end of the drive shaft, a drive swing arm mounted at the top of the drive shaft, and a hinged mounting seat fixed to the outer wall of the feed cylinder, and a linear drive pivotally connected between the hinged mounting seat and the drive swing arm.

[0012] Preferably, the system further includes a discharge sealing plate installed on the outer wall of the feed cylinder, which is adapted to the discharge port opened at the bottom of the feed cylinder. The discharge sealing plate has an arc-shaped structure and its lower end is in frictional contact with the swing valve plate. The system also includes an arc-shaped pressure plate provided outside the discharge sealing plate. The discharge sealing plate is detachably connected to the feed cylinder through the pressure plate and bolts. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front sectional view of the present invention; Figure 2This is a three-dimensional structural diagram of the disintegration component in this utility model; Figure 3 This is a three-dimensional structural diagram of the stirring component in this utility model; Figure 4 This is a three-dimensional structural diagram of the swing valve assembly in this utility model.

[0014] In the diagram: 1. Support frame; 2. Slag discharge chute; 3. Swing valve assembly; 3-1. Linear drive component; 3-2. Hinge mounting base; 3-3. Drive swing arm; 3-4. Drive shaft; 3-5. Mounting bushing; 3-6. Discharge sealing plate; 3-7. Swing valve plate; 4. Feed cylinder; 5. Dispersing assembly; 5-1. Dispersing motor; 5-2. Sprocket drive pair; 5-3. Dispersing mixing blades; 5-4. Dispersing grid; 5-5. Dispersing box; 5-6. Grid channel; 5-7. Dispersing... 5-8. Shaft; 6. Casing support legs; 7. Stirring motor; 7. Stirring assembly; 7-1. Stirring shaft; 7-2. Shaft seat plate; 7-3. Stirring shaft rod; 7-4. Stirring vertical plate one; 7-5. Push rod one; 7-6. Shaft mounting seat; 7-7. Stirring connecting rod; 7-8. Stirring component one; 7-9. Push rod two; 7-10. Stirring vertical plate two; 7-11. Stirring component two; 8. Filter hole; 9. Discharge shaft; 10. Discharge spiral blade; 11. Discharge hopper; 12. Discharge valve. Detailed Implementation

[0015] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided in detail: Please see Figure 1 The present invention relates to a feeding and impurity removal device for aquatic veterinary drug production, comprising a support 1, a feeding cylinder 4 with a flat bottom fixedly connected to the support 1, a discharge port and several filter holes 8 at the bottom of the feeding cylinder 4, a slag discharge chute 2 and a swing valve assembly 3 installed at the discharge port, and a discharge hopper 11 covered by the filter holes 8 fixedly connected to the bottom of the feeding cylinder 4. A discharge valve 12 is provided at the discharge port of the discharge hopper 11 and is directly connected to the inlet of a mixing tank for mixing. The inner cavity of the feed cylinder 4 is provided with a stirring assembly 7 that is rotatably connected to it and fits against the bottom surface. It also includes a stirring motor 6 for driving the stirring assembly 7 to rotate. The stirring assembly 7 includes a stirring shaft 7-1 connected to the output shaft of the stirring motor 6. A shaft seat plate 7-2 is fixed to the stirring shaft 7-1 and a stirring mechanism is detachably connected to the shaft seat plate 7-2. A stirring and pushing mechanism is detachably installed on the stirring mechanism. It also includes a dispersing assembly 5 installed at the top feed port of the feed cylinder 4 for dispersing the feed.

[0016] The integrated crushing and screening of raw materials is achieved through a multi-layered processing structure. The support frame 1 provides overall support, while the planar feed cylinder 4's bottom design facilitates uniform material distribution. The partitioned design of the discharge port and filter holes 8 enables dual-channel control for impurity separation and qualified material collection. The swing valve assembly 3 automatically discharges slag by dynamically opening and closing the discharge port, while the discharge hopper 11 specifically collects qualified material passing through the filter holes 8. The stirring assembly 7, through its rotational motion and bottom-fitting structural design, pushes the material through crushing agglomerates while simultaneously completing the screening process. The detachable rotating shaft seat plate 7-2 facilitates maintenance and replacement of different stirring mechanisms. The adjustable stirring and pushing mechanism adapts to the physical properties of different materials, and the special shape design of the pushing rod enhances the material mixing effect. The top dispersing assembly 5 initially crushes agglomerated raw materials during the feeding stage, forming a dual crushing guarantee mechanism with the secondary stirring inside the cylinder, effectively preventing material caking from affecting subsequent processes.

[0017] like Figure 1 As shown, it also includes a discharge shaft 9 that passes through the bottom of the feed cylinder 4 and is rotatably connected to it. That is, a rotating sleeve is fixedly connected to the bottom of the feed cylinder 4, and the discharge shaft 9 passes through the rotating sleeve and is rotatably connected through a rolling bearing. A sealing end cap is provided at the end of the rotating sleeve. The discharge shaft 9 is connected to the stirring assembly 7, and a discharge spiral blade 10 located in the discharge hopper 11 is wound on the discharge shaft 9.

[0018] An active discharge mechanism is formed by installing a discharge spiral blade 10 inside the discharge hopper 11, which is linked to the discharge shaft 9. The discharge shaft 9 passes through the bottom of the feed cylinder 4 and forms a rotatable connection with the cylinder, ensuring transmission stability. The spiral blade is coiled on the shaft and located inside the discharge hopper 11. When the shaft rotates, the spiral blade generates axial thrust, continuously pushing the material deposited in the discharge hopper 11 outward, preventing material from accumulating at the bottom of the discharge hopper 11 and causing blockage. Compared with the method of discharging by gravity alone, this spiral conveying structure can forcibly discharge the material outward, which is particularly suitable for handling powder materials with high viscosity or easy agglomeration, effectively improving discharge efficiency and the continuity of equipment operation.

[0019] like Figure 2As shown, the dispersing assembly 5 includes a dispersing box 5-5 whose outlet is connected to the inlet of the feeding cylinder 4 and is mounted on top of the feeding cylinder 4 via several box-type support legs 5-8. A dispersing grid 5-4 is installed inside the dispersing box 5-5, and several grid channels 5-6 arranged in an array are installed on the dispersing grid 5-4. The assembly also includes a mixing and dispersing mechanism rotatably connected to the dispersing box 5-5 and passing through the grid channels 5-6, and a rotary drive mechanism for driving the mixing and dispersing mechanism to rotate. The mixing and dispersing mechanism refers to a crushing device with rotating blades. Specifically, it can use a rotating shaft with a diameter of 30-50mm in conjunction with rectangular mixing blades. The blade edges can be provided with a serrated structure for secondary crushing of the material passing through the grid.

[0020] Furthermore, the aforementioned mixing and dispersing mechanism includes a dispersing shaft 5-7 rotatably connected to the dispersing box 5-5 and arranged laterally. The dispersing shaft 5-7 is located below the dispersing grid 5-4. It also includes multiple sets of mixing blade units fixed to the dispersing shaft 5-7 and evenly distributed along its circumference. Each mixing unit includes several dispersing mixing blades 5-3 evenly distributed along the axial direction of the dispersing shaft 5-7. When the dispersing shaft 5-7 rotates, the multiple sets of mixing blade units sequentially pass through several grid channels 5-6. Through the spatial cooperation between the laterally arranged dispersing shaft 5-7 and the grid channels 5-6, a synergistic effect of dynamic dispersing and channel cleaning is achieved. By placing the dispersing shaft 5-7 below the dispersing grid 5-4, the mixing blade units can both cut and break down falling agglomerated materials during rotation and form a multi-stage dispersing structure through the axially distributed mixing blades. Multiple sets of stirring blades evenly distributed along the circumference form a continuous dispersing working surface when rotating, while the layout of each set of stirring blades evenly distributed along the axial direction achieves full cross-sectional coverage of the material flow.

[0021] In addition, the aforementioned rotary drive mechanism includes a dispersing motor 5-1 mounted on the top of the feed cylinder 4, and a sprocket drive pair 5-2 mounted between the output shaft of the dispersing motor 5-1 and the end of the dispersing shaft 5-7; the sprocket drive pair 5-2 includes a driving sprocket keyed to the output shaft of the dispersing motor 5-1, and a driven sprocket keyed to the end of the dispersing shaft 5-7, and a chain drivingly connecting the driving sprocket and the driven sprocket.

[0022] The above settings resolve the issues of power transmission stability and reliability in the dispersing shaft 5-7 drive mechanism, ensuring continuous and efficient operation of the mixing and dispersing mechanism to fully disperse lumpy materials. Power is supplied by the dispersing motor 5-1, and a keyed connection is used to rigidly fix the drive sprocket to the motor output shaft, preventing slippage during transmission.

[0023] A multi-stage dispersing operation space is constructed by setting up a vertical pretreatment structure with grid channels 5-6. The dispersing box 5-5 connects with the top of the feed cylinder 4 to form a material transition channel, and the box support legs 5-8 provide stable support; the array-type grid channels 5-6 of the dispersing grid 5-4 forcibly divide the agglomerated material into multiple fine streams, forming initial dispersion; the rotating motion of the mixing and dispersing mechanism through the grid channels 5-6 causes the mixing blades to perform secondary crushing when the material passes through the grid; the rotating drive mechanism provides power for continuous dispersing.

[0024] Through the synergistic effect of grid segmentation and dynamic stirring, the agglomerated materials are broken down in stages, ensuring that the materials entering the feed cylinder 4 are uniformly dispersed. Specifically, after the material enters from the top of the dispersing chamber 5-5, it is first forcibly divided into multiple fine streams that pass through the grid channel 5-6. At this time, the rotating stirring blades penetrate the grid channel 5-6 at a speed of 60-80 revolutions per minute, shearing and breaking the falling material stream. When the agglomerated material passes through the grid channel 5-6, it is constrained by the channel wall, forcing the agglomerated structure to generate stress concentration. At this time, the edges of the rotating stirring blades contact the agglomerated material, generating shear force, breaking the large pieces of material into particles with a particle size smaller than the diameter of the grid channel 5-6. The drive mechanism transmits power to the dispersing shaft 5-7 through a sprocket drive, keeping the stirring blades rotating continuously.

[0025] See further Figure 3 The aforementioned stirring mechanism includes a plate that is detachably connected to the rotating shaft seat plate 7-2 by bolts and locking nuts. A horizontally arranged shaft mounting seat 7-6 is fixed to the plate. Both ends of the shaft mounting seat 7-6 are detachably connected to a longitudinally arranged stirring connecting rod 7-7 by bolts and locking nuts. A stirring component 1 7-8 and a stirring component 2 7-11 are fixed to the two stirring connecting rods 7-7 respectively. Both stirring component 1 7-8 and stirring component 2 7-11 have a plow-shaped structure.

[0026] In addition, the aforementioned mixing and pushing mechanism includes at least two sets of mixing shafts 7-3 arranged laterally and detachably connected to the shaft mounting base 7-6. In this embodiment, two mixing shafts 7-3 are provided, and two mounting sleeves are installed on the shaft mounting base 7-6. The two mixing shafts 7-3 are respectively inserted into the two mounting sleeves, and the mixing shafts 7-3 and the corresponding mounting sleeves are detachably connected by bolts and lock nuts. By setting a double mixing shaft 7-3 structure, the pushing and covering range of the mixing mechanism on the material is enhanced, avoiding deformation or jamming of a single shaft due to uneven force. The two independent mounting sleeves on the shaft mounting base 7-6 ensure that the installation positions of the two mixing shafts 7-3 are symmetrically distributed, improving the overall structural stability. The detachable connection method using bolts and lock nuts ensures the rigid fixation between the shaft and the mounting sleeve, preventing loosening and displacement during operation, and also facilitates quick disassembly and replacement of individual mixing shafts 7-3 during maintenance, avoiding the scrapping of the entire mixing mechanism due to local damage.

[0027] Each stirring shaft 7-3 has a detachable stirring plate 7-4 connected to one end, and a pusher rod 7-5 is installed through several stirring plates 7-4. Each stirring shaft 7-3 also has a detachable stirring plate 7-10 connected to the other end, and a pusher rod 7-9 is installed through several stirring plates 7-10. Pusher rod 7-5 is S-shaped, and pusher rod 7-9 is arc-shaped. The S-shaped pusher rod is a metal rod with a continuous wavy curved surface, which can be achieved by bending spring steel to form an alternating material pushing trajectory. The arc-shaped pusher rod is an arc-shaped metal rod with a gradually increasing bending radius, which can be achieved by bending stainless steel tubes to form a continuous curved surface for guiding material discharge.

[0028] The modular and adjustable mixing mechanism and mixing and pushing mechanism are combined to achieve multi-dimensional crushing and directional discharge of agglomerated materials. The detachable connection design between the rotating shaft seat plate 7-2 and the plate allows for easy replacement of the appropriate mixing mechanism according to different material characteristics. The shaft mounting seat 7-6 is horizontally arranged to cooperate with the detachable mixing rods 7-7 at both ends, enabling the plow-shaped mixing components to form alternating crushing trajectories. The two sets of mixing shafts 7-3 are combined with S-shaped and arc-shaped pushing rods mounted on the vertical plate, forming complementary pushing paths during rotation. The plow-shaped mixing components one and two use their wedge-shaped cutting edges to shear and crush the agglomerates, while the S-shaped pushing rod generates alternating pushing force through the wavy curved surface, and the arc-shaped pushing rod provides continuous guidance. The combination of the two prevents material from accumulating in the filter hole 8 area and pushes the filtered impurities towards the discharge port at the bottom of the feed cylinder 4.

[0029] See further Figure 4The aforementioned swing valve assembly 3 includes a longitudinally mounted mounting sleeve 3-5 fixed to the outer wall of the feed cylinder 4. A drive shaft 3-4, rotatably connected to the mounting sleeve 3-5, is inserted within the mounting sleeve 3-5. A swing valve plate 3-7, adapted to a discharge port at the bottom of the feed cylinder 4, is mounted at the lower end of the drive shaft 3-4. The swing valve plate 3-7 is keyed to the drive shaft 3-4. A drive swing arm 3-3 is mounted on the top of the drive shaft 3-4. The assembly also includes a hinged mounting base 3-2 fixed to the outer wall of the feed cylinder 4. A linear drive element 3-1 is pivotally connected between the hinged mounting base 3-2 and the drive swing arm 3-3. The linear drive element 3-1 is a power element that outputs linear motion, specifically a cylinder or an electric actuator. The aforementioned drive shaft 3-4 is a rotating shaft that transmits the pushing and pulling motion of the linear drive element 3-1, specifically a solid steel shaft with a chrome-plated surface. This shaft component converts the telescopic motion of the linear drive component 3-1 into the rotary opening and closing action of the swing valve plate 3-7. The swing valve plate 3-7 is a sealing component that matches the shape of the discharge port. Specifically, it can be a rectangular steel plate with rounded edges, slightly larger than the discharge port opening, which is covered or exposed by rotation. This design ensures that the valve plate forms a surface contact seal with the edge of the discharge port when closed.

[0030] The rotating connection between the mounting sleeve 3-5 and the drive shaft 3-4 provides stable support and rotational freedom for the swing valve plate 3-7, enabling it to precisely cover the discharge port. The swing valve plate 3-7, located at the lower end of the drive shaft 3-4, matches the shape of the discharge port and can control its opening and closing under the action of the linear drive 3-1, effectively preventing material leakage while ensuring smooth slag discharge. The linear drive 3-1, pivotally connected to the drive arm 3-3 and the hinged mounting base 3-2, converts telescopic motion into the rotational motion of the drive shaft 3-4, avoiding the complex gear transmission structure of traditional valve mechanisms and reducing the risk of jamming. The linear motion path of the linear drive 3-1 and the swing trajectory of the drive arm 3-3 create a lever effect, enhancing the torque output for valve plate opening and closing, making it particularly suitable for applications with high pressure from powdery material accumulation.

[0031] Furthermore, to address the issue of seal plate wear caused by friction during frequent opening and closing of the swing valve assembly 3, and to improve the structural strength of the swing valve plate 3-7, the swing valve assembly 3 also includes a discharge seal plate 3-6 installed on the outer wall of the feed cylinder 4, adapted to the discharge port at the bottom of the feed cylinder 4. The discharge seal plate 3-6 has an arc-shaped structure, and its lower end is in frictional contact with the swing valve plate 3-7. It also includes an arc-shaped pressure plate installed outside the discharge seal plate 3-6. The discharge seal plate 3-6 is detachably connected to the feed cylinder 4 via the pressure plate and bolts. The discharge seal plate 3-6 is made of wear-resistant material; a wear-resistant layer is provided on the top of the swing valve plate 3-7, and several reinforcing rods are provided at the bottom of the swing valve plate 3-7.

[0032] The arc-shaped discharge sealing plate 3-6 and the swing valve plate 3-7 form a surface contact friction pair. The continuous fit of the arc-shaped surface enhances the sealing effect, preventing powder material leakage from the valve plate gap during slag discharge. The detachable connection structure of the pressure plate and bolts allows for quick replacement and maintenance of the sealing plate, adapting to different wear conditions. The discharge sealing plate 3-6 is made of wear-resistant material to reduce the wear rate of the contact surface. The top of the swing valve plate 3-7 is reinforced with a wear-resistant layer for double wear protection, while the bottom reinforcing rod strengthens the valve plate's resistance to deformation. The combined design of the arc-shaped sealing plate and the swing valve ensures dynamic sealing while significantly extending the service life of key components through material selection and structural optimization.

[0033] Working principle: After being crushed by the top dispersing component 5, the material enters the feed cylinder 4, effectively breaking up agglomerated materials during the feeding stage. The stirring process continues to decompose any remaining agglomerated material. Once inside the feed cylinder 4, the rotating stirring component 7 propels the material along the bottom of the flat surface. Qualified fine materials pass through the filter holes 8 and are collected in the discharge hopper 11, while agglomerated impurities are pushed to the discharge port area. When impurities accumulate to a set amount, the swing valve component 3 opens, discharging the impurities along the slide. This dual-channel discharge system achieves physical separation of impurities and qualified materials, preventing cross-contamination. The stirring component 7, consisting of a detachable stirring mechanism and a stirring and pushing mechanism, allows for the replacement of different models based on the material viscosity during operation. The flat bottom design of the feed cylinder 4 ensures a uniform material layer thickness, preventing localized accumulation that could affect screening efficiency.

[0034] Compared to existing technologies, traditional equipment uses a vibrating screen for single screening, which cannot handle agglomerated materials and requires an additional crusher. This invention integrates crushing, mixing, and screening functions into one unit, and its flat bottom structure is more conducive to material spreading compared to traditional conical screens. A swing valve assembly replaces the traditional manual slag discharge gate, achieving automated control.

Claims

1. A feeding and impurity removal device for aquatic veterinary drug production, characterized in that: The system includes a support (1), a feed cylinder (4) with a flat bottom fixed to the support (1), a discharge port and several filter holes (8) at the bottom of the feed cylinder (4), a slag discharge slide (2) and a swing valve assembly (3) installed at the discharge port, and a discharge hopper (11) fixed to the bottom of the feed cylinder (4) and covered outside the filter holes (8); a stirring assembly (7) rotatably connected to and in contact with the bottom surface of the feed cylinder (4) is provided in the inner cavity of the feed cylinder (4), and also includes... A stirring motor (6) is used to drive the stirring assembly (7) to rotate; the stirring assembly (7) includes a stirring shaft (7-1) connected to the output shaft of the stirring motor (6), a shaft seat plate (7-2) is fixedly connected to the stirring shaft (7-1) and a stirring mechanism is detachably connected to the shaft seat plate (7-2), and a stirring and pushing mechanism is detachably installed on the stirring mechanism; it also includes a dispersing assembly (5) installed at the top feed port of the feed cylinder (4) for dispersing the feed.

2. The feeding and impurity removal device for aquatic veterinary drug production as described in claim 1, characterized in that: It also includes a discharge shaft (9) that runs through the bottom of the feed cylinder (4) and is rotatably connected thereto. The discharge shaft (9) is connected to the stirring assembly (7), and a discharge spiral blade (10) located in the discharge hopper (11) is coiled on the discharge shaft (9).

3. The feeding and impurity removal device for aquatic veterinary drug production as described in claim 1, characterized in that: The dispersing assembly (5) includes a dispersing box (5-5) whose outlet is connected to the inlet of the feed cylinder (4) and is installed on the top of the feed cylinder (4) through several box legs (5-8). A dispersing grid (5-4) is installed in the inner cavity of the dispersing box (5-5). Several grid channels (5-6) arranged in an array are installed on the dispersing grid (5-4). The assembly also includes a stirring and dispersing mechanism that is rotatably connected to the dispersing box (5-5) and passes through the several grid channels (5-6) in the inner cavity of the dispersing box (5-5). The assembly also includes a rotary drive mechanism for driving the stirring and dispersing mechanism to rotate.

4. The feeding and impurity removal device for aquatic veterinary drug production as described in claim 3, characterized in that: The mixing and dispersing mechanism includes a dispersing shaft (5-7) that is rotatably connected to the dispersing box (5-5) and arranged laterally. The dispersing shaft (5-7) is located below the dispersing grid (5-4). It also includes multiple sets of stirring blade units that are fixed on the dispersing shaft (5-7) and evenly distributed along its circumference. Each stirring unit includes several dispersing stirring blades (5-3) that are evenly distributed along the axial direction of the dispersing shaft (5-7). When the dispersing shaft (5-7) rotates, the multiple sets of stirring blade units pass through several grid channels (5-6) in sequence.

5. The feeding and impurity removal device for aquatic veterinary drug production as described in claim 1, characterized in that: The mixing mechanism includes a plate detachably connected to a rotating shaft seat plate (7-2). A transversely arranged shaft mounting seat (7-6) is fixed to the plate. Both ends of the shaft mounting seat (7-6) are detachably connected to longitudinally arranged mixing rods (7-7). Mixing component one (7-8) and mixing component two (7-11) are respectively fixed to the two mixing rods (7-7). Both mixing component one (7-8) and mixing component two (7-11) have a plow-shaped structure. The mixing and pushing mechanism includes a transversely arranged shaft mounting seat plate (7-2) and a shaft mounting seat plate (7-6). 6) At least two sets of detachable stirring shafts (7-3) are connected, and stirring plate 1 (7-4) is detachably connected to one end of each stirring shaft (7-3), and push rod 1 (7-5) is installed through several stirring plate 1 (7-4). Stirring plate 2 (7-10) is detachably connected to the other end of each stirring shaft (7-3), and push rod 2 (7-9) is installed through several stirring plate 2 (7-10). Push rod 1 (7-5) is S-shaped, and push rod 2 (7-9) is arc-shaped.

6. The feeding and impurity removal device for aquatic veterinary drug production as described in claim 1, characterized in that: The swing valve assembly (3) includes a longitudinally arranged mounting sleeve (3-5) fixed to the outer wall of the feed cylinder (4), a drive shaft (3-4) rotatably connected to the mounting sleeve (3-5), a swing valve plate (3-7) adapted to the discharge port opened at the bottom of the feed cylinder (4) installed at the lower end of the drive shaft (3-4), a drive swing arm (3-3) installed at the top of the drive shaft (3-4), and a hinged mounting seat (3-2) fixed to the outer wall of the feed cylinder (4), and a linear drive (3-1) pivotally connected between the hinged mounting seat (3-2) and the drive swing arm (3-3).

7. The feeding and impurity removal device for aquatic veterinary drug production as described in claim 6, characterized in that: It also includes a discharge sealing plate (3-6) installed on the outer wall of the feed cylinder (4) and adapted to the discharge port opened at the bottom of the feed cylinder (4). The discharge sealing plate (3-6) has an arc-shaped structure and its lower end is in frictional contact with the swing valve plate (3-7). It also includes an arc-shaped pressure plate set outside the discharge sealing plate (3-6). The discharge sealing plate (3-6) is detachably connected to the feed cylinder (4) by the pressure plate and bolts.

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