Raw material crushing device for aquaculture feed production and processing

Abstract

According to the raw material crushing device for aquaculture feed production and processing, an efficient hammerhead roller crushing and multi-stage screening mechanism is introduced, it is ensured that raw materials are evenly and finely crushed, the granularity is consistent, a grinding roller is matched with a convex plate strip and an extrusion spring, the grinding force is automatically adjusted, and the crushing efficiency is improved. The grinding efficiency is effectively improved, the equipment loss is reduced, a stirring rod and a hemispherical plate in the device are combined, so that the mixed feed can be directly formed into a ball shape and can be conveniently ingested by aquaculture organisms, dry grass serves as a carrier, the structure of the spherical feed is enhanced, the spherical feed can regrow in water, a food source is provided for the aquatic organisms, and the ecological value of a water body is increased. The design of the automatic replacement plate and the magnetic suction head allows a carrier frame of feed balls to be automatically replaced, continuous production is achieved, the collection process of finished products is simplified through the arrangement of the collection box, manual operation is reduced, the production efficiency is improved, and therefore the feed production quality and efficiency are remarkably improved, and meanwhile the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of feed crushing, and more specifically to a raw material crushing device for producing and processing aquaculture feed. Background Art

[0002] In the production and processing of aquaculture feed, raw material crushing equipment is one of the key equipment, mainly including hammer crusher, roller crusher, ball mill and blade crusher. These equipments crush the raw materials into particle sizes suitable for mixing and further processing through different mechanical actions (such as striking, squeezing, shearing or grinding). Hammer crusher is suitable for hard or medium hard materials, roller crusher is used to crush fragile granular materials, ball mill is used to prepare very fine powder, and blade crusher is often used for raw materials with strong fibrous properties.

[0003] Although the existing raw material crushing devices used in aquaculture feed production and processing have diverse functions, they still have some technical problems, such as high energy consumption, rapid component wear, limited processing capacity, large amounts of dust and noise generated during the production process, and imprecise particle size control.

[0004] However, in the current aquaculture feed processing, when the raw materials are crushed, there are often insufficiently crushed particles, which not only affects the subsequent mixing of materials, but also the particles cannot be eaten by aquatic organisms when fed, which easily leads to waste of resources and growth of aquatic organisms. In addition, after the existing crushing device crushes, stirs and mixes, the mixed feed is mostly made into balls for feeding. However, the ball feed will loosen and mix into the water after entering the water for a while, so it cannot be fully eaten by aquatic organisms.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a raw material crushing device for the production and processing of aquaculture feed. Summary of the invention

[0006] The object of the present invention is to provide a raw material crushing device for aquaculture feed production and processing to solve the above-mentioned problems.

[0007] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0008] A raw material crushing device for aquaculture feed production and processing, comprising a processing seat, a pair of grinding rollers and multiple pairs of hemispherical plates, the upper end of the processing seat is fixedly connected to a mixing drum, the upper end of the mixing drum is fixedly connected to a grinding box, the upper end of the grinding box is fixedly connected to a crushing box, the inner end of the crushing box is rotatably connected to a hammer roller, the crushing box is fixedly connected to a first screen on the inner wall of one side of the grinding box close to the grinding box, a pair of grinding rollers are rotatably connected to the inner end of the grinding box, the inner wall of the grinding box close to the mixing drum is fixedly connected to a pair of second screens, the lower end of the grinding box is fixedly connected to a driving motor, and the driving motor The motor is located in the mixing barrel, and the lower end of the driving motor is rotatably connected to a stirring rod. A pair of feed boxes are fixedly connected to the outer end of the mixing barrel, and the feed box is communicated with the inner end of the mixing barrel. A plurality of flow tubes are inlaid on the lower inner wall of the mixing barrel, and a micro pump is fixedly connected in the flow tube. Multiple pairs of hemispherical plates are rotatably connected to the lower ends of the flow tubes respectively. A carrier frame is provided in the flow tube, and a hammer roller ensures that the raw materials are effectively crushed, and then further crushed by a grinding roller. The setting of the two-stage screen ensures that the particle size of the material meets the requirements of further processing, thereby improving the overall production efficiency and product quality.

[0009] As a further improvement of the present invention, a plurality of placement grooves corresponding to a plurality of pairs of hemispherical plates are provided in the processing seat, and a lifting rod is fixedly connected to the inner wall at the lower end of the placement groove. A plurality of rotation grooves are provided in the processing seat, and the placement grooves are communicated with the rotation grooves. A replacement plate is rotatably connected in the rotation groove, and a pair of hemispherical plates are located in the rotation groove. By introducing the placement grooves and the lifting rod, a carrier frame is provided for a pair of hemispherical plates. Combined with the replacement plate, automatic replacement and replenishment of the carrier frame is realized, thereby improving production continuity, reducing downtime, and enhancing production efficiency.

[0010] As a further improvement of the present invention, a pair of disengagement grooves are provided at the outer end of the processing seat, and the disengagement grooves are connected to the rotating grooves. A pair of collecting boxes are fixedly connected to the outer end of the processing seat, and the pair of collecting boxes respectively correspond to the pair of disengagement grooves. The automatic separation and collection of the formed spherical feed reduces manual intervention, improves the automation level and safety of production, and reduces potential pollution risks.

[0011] As a further improvement of the present invention, the grinding roller includes a rolling roller, which is rotatably connected to the inner end of the grinding box, and a plurality of grooves are provided at the outer end of the rolling roller, in which convex strips are slidably connected, and an extrusion spring is provided in the groove, so that the rolling roller can adapt to materials of different hardness, thereby improving the grinding efficiency and durability of the equipment, and protecting the equipment from excessive wear.

[0012] As a further improvement of the present invention, a deformable pad is fixedly connected to the inner wall of the groove, and a plurality of convex strips are staggeredly distributed on the outer ends of a pair of rolling rollers to prevent them from contacting and getting stuck with each other.

[0013] As a further improvement of the present invention, the stirring rod includes a main rotating rod, which is rotatably connected to the lower end of the driving motor, a pair of auxiliary rotating rods are fixedly connected to the outer end of the main rotating rod, a branch rotating rod is fixedly connected to the lower end of the auxiliary rotating rod, and a plurality of auxiliary stirring bars are fixedly connected to the outer end of the branch rotating rod, thereby ensuring efficient and uniform stirring of the materials in the mixing barrel, preventing material deposition, and improving the homogeneity and quality of the feed.

[0014] As a further improvement of the present invention, the stirring rod also includes a scraper plate, which is fixedly connected to one end of the auxiliary rotating rod away from the main rotating rod. The scraper plate can be used to scrape off the material adhering to the inner wall of the mixing barrel to improve resource utilization.

[0015] As a further improvement of the present invention, the replacement plate includes a rotating block, which is rotatably connected in a rotating slot, and the upper and lower ends of the rotating block are respectively fixedly connected with exchange rods, and the end of the exchange rod away from the rotating block is fixedly connected with a magnetic head, and the end of the magnetic head away from the exchange rod is provided with a docking groove, so that automatic rapid loading and unloading can be achieved through magnetic adsorption, which greatly improves the convenience of operation and production efficiency.

[0016] As a further improvement of the present invention, the carrier frame includes dry grass, which is arranged in the middle of a pair of hemispherical plates. A miniature iron block is fixedly connected to the lower end of the dry grass. The dry grass in the carrier frame not only serves as a water-absorbing medium to enhance the structure of the spherical feed, but also provides additional nutrition through plant materials, while supporting environmentally friendly and sustainable production methods.

[0017] As a further improvement of the present invention, the aperture of the second screen is smaller than the aperture of the first screen, and the screening mechanism ensures that only materials of appropriate size can enter the next production stage, thereby ensuring the consistency and quality standards of the products.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution greatly improves the efficiency of feed processing through double crushing. The introduction of hammer rollers in the equipment ensures that the raw materials can be hammered and crushed effectively and evenly, improving the crushing efficiency. The crushed materials are initially screened through the first screen and then further crushed and finely crushed by a pair of grinding rollers to ensure that the material particle size is uniform and meets the subsequent processing requirements. The setting of the second screen further ensures that only materials that meet the required fineness can enter the next production stage, improving the consistency and quality of the product.

[0020] (2) In the setting of a pair of grinding rollers in this scheme, the combination of the convex strips and the extrusion springs on the rolling rollers allows the pressure to be automatically adjusted during the rolling process, effectively processing insufficiently crushed materials and improving the grinding efficiency. The use of deformation pads reduces the damage to the rolling rollers by hard objects, prolongs the service life of the equipment, and reduces maintenance costs.

[0021] (3) The stirring rod and auxiliary stirring bar in the mixing drum of the present invention ensure that the feed raw materials are fully mixed with water and auxiliary materials to form a uniform feed mixture. Through the setting of the carrier frame and the hemispherical plate, the mixed feed can be effectively formed into a spherical shape, which is easy for aquaculture organisms to ingest.

[0022] (4) In this scheme, the dry grass as a carrier not only provides the function of absorbing water and increasing viscosity, but also because it is made of blue-green algae, green algae and diatoms, it can regrow after contact with water, providing an additional food source for aquatic organisms and increasing the ecological value of the water body.

[0023] (5) The setting of the replacement plate and the magnetic suction head in this scheme allows the automatic replacement of the carrier frame of the feed ball to achieve continuous production. The setting of the collection box simplifies the collection process of the finished products, reduces manual operations, and reduces labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the side cross-sectional structure of the processing seat of the present invention;

[0026] Figure 3 It is a schematic diagram of a partial side cross-sectional structure of the present invention;

[0027] Figure 4 It is a front cross-sectional structural schematic diagram of the hemispherical plate of the present invention;

[0028] Figure 5 It is a schematic diagram of the front cross-sectional structure of the carrier frame of the present invention.

[0029] Description of the numbers in the figure:

[0030] 1. Processing seat; 2. Mixing drum; 3. Grinding box; 4. Crushing box; 5. Hammer roller; 6. First screen; 7. Grinding roller; 71. Grinding roller; 72. Convex plate; 73. Extrusion spring; 8. Second screen; 9. Driving motor; 10. Stirring rod; 101. Main rotating rod; 102. Auxiliary rotating rod; 103. Branch rotating rod; 104. Auxiliary stirring bar; 105. Scraper plate; 11. Circulation pipe; 12. Hemispherical plate; 13. Replacement plate; 131. Rotating block; 132. Exchange rod; 133. Magnetic head; 14. Placement slot; 15. Carrier frame; 151. Dry grass; 152. Miniature iron block; 16. Lifting rod; 17. Disengagement slot; 18. Collection box; 19. Feed box. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] See also Figure 1-5 A raw material crushing device for the production and processing of aquaculture feed comprises a processing seat 1, a pair of grinding rollers 7 and a plurality of pairs of hemispherical plates 12, a mixing drum 2 is fixedly connected to the upper end of the processing seat 1, a grinding box 3 is fixedly connected to the upper end of the mixing drum 2, a crushing box 4 is fixedly connected to the upper end of the grinding box 3, a hammer roller 5 is rotatably connected to the inner end of the crushing box 4, a first screen 6 is fixedly connected to the inner wall of the crushing box 4 on one side close to the grinding box 3, a pair of grinding rollers 7 are rotatably connected to the inner end of the grinding box 3, the raw materials put into the crushing box 4 are hammered and crushed by the hammer roller 5, the crushed materials are screened by the first screen 6 and fall into the grinding box 3, the crushed materials are crushed by the pair of grinding rollers 7, so that the material crushing reaches the ideal material particle size.

[0034] The grinding roller 7 includes a rolling roller 71, which is rotatably connected to the inner end of the grinding box 3. A plurality of grooves are provided at the outer end of the rolling roller 71, and a convex strip 72 is slidably connected in the groove. An extrusion spring 73 is provided in the groove, and a deformation pad is fixedly connected to the inner wall of the groove. A plurality of convex strips 72 at the outer ends of a pair of rolling rollers 71 are staggered. The crushed material is crushed again by the rolling roller 71, and the convex strips 72 are supported by the extrusion spring 73 so that the convex strips 72 squeeze the deformation pad into a convexity, and the insufficiently crushed material is scraped up again by the convexity. The pair of rolling rollers 71 are crushed again, and the multiple convex strips 72 on the outer ends of the pair of rolling rollers 71 are staggered to prevent them from contacting and getting stuck with each other. Therefore, when the convex strips 72 rotate and contact the rolling rollers 71, they shrink into the grooves due to the extrusion force. At the same time, the deformation pads are made of wear-resistant elastic material, which can also prevent the crushed materials from penetrating into the grooves. During the crushing process, the materials will be embedded in the surface of the deformation pads, and under the action of the extrusion springs 73, the deformation pads are squeezed when the convex strips 72 are squeezed, so that the deformation pad protrusions squeeze off the adhered materials.

[0035] A pair of second screens 8 are fixedly connected to the inner wall of the grinding box 3 close to the mixing cylinder 2. The mesh size of the second screen 8 is smaller than that of the first screen 6. Through the difference in mesh size, the hammered and crushed material can pass through the first screen 6 for screening, and will not fall through the second screen 8 until it is crushed by the rolling roller 71 and can be screened by the second screen 8.

[0036] The lower end of the grinding box 3 is fixedly connected to a driving motor 9, and the driving motor 9 is located in the mixing drum 2. The lower end of the driving motor 9 is rotatably connected to a stirring rod 10. The outer end of the mixing drum 2 is fixedly connected to a pair of feeding boxes 19, and the feeding boxes 19 are communicated with the inner end of the mixing drum 2. The stirring rod 10 includes a main rotating rod 101, which is rotatably connected to the lower end of the driving motor 9. The outer end of the main rotating rod 101 is fixedly connected to a pair of auxiliary rotating rods 102, the lower end of the auxiliary rotating rod 102 is fixedly connected to a branch rotating rod 103, and the outer end of the branch rotating rod 103 is fixedly connected to a plurality of auxiliary stirring bars 104. The materials at the lower end are crushed and screened and fall into the mixing drum 2. The feeding box 19 provides the auxiliary materials and water required for the feed, and the materials are mixed into an ideal feed under the sufficient stirring of the stirring rod 10.

[0037] The stirring rod 10 further includes a scraper plate 105 , which is fixedly connected to one end of the auxiliary rotating rod 102 away from the main rotating rod 101 . The scraper plate can be used to scrape off the material adhering to the inner wall of the mixing barrel to improve resource utilization.

[0038] A plurality of flow tubes 11 are inlaid on the lower inner wall of the mixing barrel 2, a micro pump is fixedly connected inside the flow tube 11, a plurality of pairs of hemispherical plates 12 are rotatably connected to the lower end of the flow tube 11, a carrier frame 15 is arranged inside the flow tube 11, and the mixed feed is injected from the flow tube 11 into a pair of hemispherical plates 12 through the micro pump, so that the feed fills the pair of hemispherical plates 12 and is wrapped around the outer end of the carrier frame 15 to form spherical feed.

[0039] The carrier frame 15 includes dry grass 151, which is arranged between a pair of hemispherical plates 12. A micro iron block 152 is fixedly connected to the lower end of the dry grass 151. The dry grass 151 provides a carrier for the mixed feed, so that the carrier dry grass 151 can absorb moisture, increase the viscosity of the spherical feed, and help the various components to better combine together to keep the spherical shape and not easy to break. The dry grass 151 absorbs excess moisture in the mixed feed to prevent the spherical feed from being too wet and scattered. The dry grass 151 is dry concentrated algae, which can be blue-green algae, green algae and diatoms. This type of algae can be revived and grown after contacting water when it is dry, and can provide a certain food source and habitat for aquatic organisms, greatly improving the efficiency of aquaculture.

[0040] A plurality of placement grooves 14 corresponding to the plurality of pairs of hemispherical plates 12 are provided in the processing seat 1, and a lifting rod 16 is fixedly connected to the inner wall of the lower end of the placement groove 14. A plurality of rotation grooves are provided in the processing seat 1, and the placement groove 14 is communicated with the rotation groove. A replacement plate 13 is rotatably connected in the rotation groove, and a pair of hemispherical plates 12 are located in the rotation groove. The replacement plate 13 includes a rotating block 131, which is rotatably connected in the rotating groove. The upper and lower ends of the rotating block 131 are respectively fixedly connected to exchange rods 132, and the exchange rod 132 is fixedly connected to one end away from the rotating block 131. A docking groove is provided at one end of the magnetic head 133 away from the exchange rod 132, and the miniature iron block 152 is attracted by the magnetic head 133 to be fixedly stuck in the docking groove, and then the carrier frame 15 made into spherical feed at the other end is rotated to replace it, so as to achieve the purpose of repeated production.

[0041] A pair of disengagement grooves 17 are provided at the outer end of the processing seat 1, and the disengagement grooves 17 are connected to the rotating grooves. A pair of collecting boxes 18 are fixedly connected to the outer end of the processing seat 1, and the pair of collecting boxes 18 correspond to the pair of disengagement grooves 17 respectively. When the carrier frame 15 made of spherical feed is rotated to the side close to the disengagement groove 17, the spherical feed is heavier, so the feed ball is separated from the adsorption of the magnetic suction head 133 and falls into the collecting box 18 through the disengagement groove 17.

[0042] Working principle: Pour the raw materials into the crushing box 4, and they are hammered and crushed by the hammer roller 5, and then fall into the grinding box 3. After being crushed by a pair of grinding rollers 7, they fall into the mixing drum 2. Water and auxiliary materials are added to the crushed materials through the feed box 19, and the stirring rod 10 is driven by the drive motor 9 to fully stir them into feed. The mixed feed is injected into the closed pair of hemispherical plates 12 through a micro pump, so that the feed fills the pair of hemispherical plates 12 and is wrapped around the outer end of the carrier frame 15. Then, the pair of hemispherical plates 12 are opened and the replacement plate 13 is rotated, so that the feed ball falls into the collecting box 18, and the new carrier frame 15 is attracted by the replacement plate 13 and fixedly rotated to between the pair of hemispherical plates 12, and then the pair of hemispherical plates 12 are closed to continue production.

[0043] It can be seen from the above technical solutions that the present invention has the following beneficial effects:

[0044] The present invention ensures that the raw materials are evenly crushed and have consistent particle size by introducing an efficient hammer roller 5 crushing and multi-stage screening mechanism. The grinding roller 7 cooperates with the convex plate strip 72 and the extrusion spring 73 to automatically adjust the crushing force, effectively improving the grinding efficiency and reducing equipment loss. The stirring rod 10 and the hemispherical plate 12 in the device are combined so that the mixed feed can be directly formed into a spherical shape, which is convenient for aquatic organisms to ingest. The dry grass 151 serves as a carrier, which not only strengthens the structure of the spherical feed, but also can regrow in the water, providing a food source for aquatic organisms and increasing the ecological value of the water body. The design of the automated replacement plate 13 and the magnetic suction head 133 allows the carrier frame 15 of the feed ball to be automatically replaced to achieve continuous production. The provision of the collection box 18 simplifies the collection process of the finished product, reduces manual operation, and improves production efficiency, thereby significantly improving the quality and efficiency of feed production and reducing production costs.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A raw material crushing device for aquaculture feed production and processing, characterized by: include: A processing seat (1), wherein the upper end of the processing seat (1) is fixedly connected to a mixing cylinder (2), the upper end of the mixing cylinder (2) is fixedly connected to a grinding box (3), the upper end of the grinding box (3) is fixedly connected to a crushing box (4), the inner end of the crushing box (4) is rotatably connected to a hammer roller (5), and the inner wall of the crushing box (4) on a side close to the grinding box (3) is fixedly connected to a first screen (6); A pair of grinding rollers (7) are provided, wherein the pair of grinding rollers (7) are rotatably connected to the inner end of a grinding box (3), and a pair of second screens (8) are fixedly connected to the inner wall of the grinding box (3) on one side close to the mixing cylinder (2); The lower end of the grinding box (3) is fixedly connected to a driving motor (9), and the driving motor (9) is located in the mixing barrel (2). The lower end of the driving motor (9) is rotatably connected to a stirring rod (10). The outer end of the mixing barrel (2) is fixedly connected to a pair of feeding boxes (19), and the feeding boxes (19) are in communication with the inner end of the mixing barrel (2); A hemispherical plate (12) is provided, and the number of the hemispherical plates (12) is plural pairs; a plurality of flow tubes (11) are inlaid on the lower inner wall of the mixing cylinder (2); a micro pump is fixedly connected inside the flow tube (11); the plurality of pairs of hemispherical plates (12) are rotatably connected to the lower end of the flow tube (11); and a carrier frame (15) is provided inside the flow tube (11).

2. The raw material crushing device for aquaculture feed production and processing according to claim 1 is characterized by: The processing seat (1) is provided with a plurality of placement grooves (14) corresponding to the plurality of pairs of hemispherical plates (12); the lower inner walls of the placement grooves (14) are fixedly connected with lifting rods (16); the processing seat (1) is provided with a plurality of rotation grooves, and the placement grooves (14) are connected with the rotation grooves; a replacement plate (13) is rotatably connected in the rotation grooves, and a pair of hemispherical plates (12) are located in the rotation grooves.

3. The raw material crushing device for aquaculture feed production and processing according to claim 1 is characterized by: The outer end of the processing seat (1) is provided with a pair of disengagement grooves (17), and the disengagement grooves (17) are connected to the rotation groove. The outer end of the processing seat (1) is fixedly connected with a pair of collection boxes (18), and the pair of collection boxes (18) respectively correspond to the pair of disengagement grooves (17).

4. The raw material crushing device for aquaculture feed production and processing according to claim 1 is characterized by: The grinding roller (7) comprises a rolling roller (71), wherein the rolling roller (71) is rotatably connected to the inner end of the grinding box (3), and a plurality of grooves are provided at the outer end of the rolling roller (71), wherein convex strips (72) are slidably connected in the grooves, and wherein a compression spring (73) is provided in the grooves.

5. The raw material crushing device for aquaculture feed production and processing according to claim 4 is characterized by: A deformable pad is fixedly connected to the inner wall of the groove, and a plurality of convex strips (72) are arranged in a staggered manner on the outer ends of a pair of rolling rollers (71).

6. The raw material crushing device for aquaculture feed production and processing according to claim 1 is characterized by: The stirring rod (10) comprises a main rotating rod (101), the main rotating rod (101) being rotatably connected to the lower end of a driving motor (9), a pair of auxiliary rotating rods (102) being fixedly connected to the outer end of the main rotating rod (101), a branch rotating rod (103) being fixedly connected to the lower end of the auxiliary rotating rod (102), and a plurality of auxiliary stirring bars (104) being fixedly connected to the outer end of the branch rotating rod (103).

7. The raw material crushing device for aquaculture feed production and processing according to claim 6 is characterized by: The stirring rod (10) further comprises a scraper plate (105), wherein the scraper plate (105) is fixedly connected to an end of the auxiliary rotating rod (102) away from the main rotating rod (101).

8. The raw material crushing device for aquaculture feed production and processing according to claim 2 is characterized by: The replacement plate (13) comprises a rotating block (131), the rotating block (131) is rotatably connected in a rotating slot, the upper and lower ends of the rotating block (131) are respectively fixedly connected with exchange rods (132), one end of the exchange rod (132) away from the rotating block (131) is fixedly connected with a magnetic suction head (133), and the end of the magnetic suction head (133) away from the exchange rod (132) is provided with a docking groove.

9. The raw material crushing device for aquaculture feed production and processing according to claim 1 is characterized by: The carrier frame (15) comprises dry grass (151), wherein the dry grass (151) is arranged between a pair of hemispherical plates (12), and a micro iron block (152) is fixedly connected to the lower end of the dry grass (151).

10. The raw material crushing device for aquaculture feed production and processing according to claim 1, characterized in that: The mesh size of the second sieve (8) is smaller than the mesh size of the first sieve (6).

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