Liquid spraying device for feed mixer

Abstract

This invention discloses a liquid spraying device for a feed mixer, comprising a main frame, on which a laterally rotating outer barrel is mounted. One end of the outer barrel is open, and a combined spraying assembly is provided inside the outer barrel for spraying in different areas using different methods. A feed hopper extending into the outer barrel is fixed to the main frame. The combined spraying assembly includes a fixing frame extending outside the outer barrel, one end of which is fixed to the main frame. A multi-angle spraying assembly is located at the bottom of the fixing frame. A secondary spraying assembly is provided inside the outer barrel, which collects the sprayed liquid from its open end and sprays it again towards the closed end. A spiral plate is fixedly connected to the inner wall of the outer barrel. The secondary spraying assembly includes an elastic telescopic box fixed to the inner wall of the outer barrel. This invention can reduce the exposure time of the fermentation liquid in a liquid environment, prevent adverse reactions between the fermentation liquid and minerals and acidic substances in the feed under wet conditions, and ensure the quality of the fermentation liquid mixed into the feed.

Description

Technical Field

[0001] This invention relates to the field of feed processing technology, and in particular to a liquid spraying device for a feed mixer. Background Technology

[0002] Pelleted fermented feed has advantages that traditional powdered fermented feed cannot match. It is rich in beneficial substances such as active probiotics, active small peptides, and organic acids. Moreover, the pellet shape makes it convenient for farms to store and spread feed, resulting in high feed intake and less waste. Therefore, it is being promoted and used by more and more farms. After pelleting, pelleted fermented feed needs to be sprayed with bacterial solution. Generally, the bacterial solution is sprayed onto the surface of the pellet feed and then put into a drum for stirring. The mechanical force of the drum makes the bacterial solution evenly penetrate into the pellet feed.

[0003] A search revealed Chinese invention patent application number CN202310547632.9, which discloses a spraying device and its working method for fermented pellet feed. The device sprays bacterial liquid onto the pellet feed inside the drum through a spray pipe. After spraying, a vacuum tube is used to create a negative pressure environment inside the drum, promoting the penetration of the bacterial liquid. The spray pipe can also spray clean water and dry the drum through a hot air pipe, thus cleaning the drum.

[0004] The above-mentioned device sprays water in a relatively simple way. The spray liquid sprayed from multiple angles is prone to causing excessive moisture and water accumulation in some areas. The fermentation liquid is exposed to the liquid environment for too long, which can easily cause adverse reactions with minerals and acidic substances in the feed under wet conditions, affecting the quality of the fermentation liquid mixed in the feed. Summary of the Invention

[0005] One objective of this invention is to provide a liquid spraying device for a feed mixer. This invention can reduce the exposure time of fermentation liquid in a liquid environment, prevent adverse reactions between the fermentation liquid and minerals and acidic substances in the feed in a wet state, and ensure the quality of the fermentation liquid mixed in the feed.

[0006] According to an embodiment of the present invention, a liquid spraying device for a feed mixer includes a main frame, an outer barrel that rotates laterally is mounted on the main frame, one end of the outer barrel is open, a combined spraying assembly that sprays in different ways in different areas is provided inside the outer barrel, and a feed hopper extending into the outer barrel is fixed on the main frame. The combined spray assembly includes a fixed frame extending to the outside of the outer barrel, one end of the fixed frame is fixed to the main frame, a multi-angle spray assembly is provided at the bottom of the fixed frame, a secondary spray assembly is provided inside the outer barrel to recover the spray liquid from its open end and spray it again to the closed end, and a spiral plate is fixedly connected to the inner wall of the outer barrel. The secondary spray assembly includes an elastic telescopic box fixed to the inner wall of the outer barrel. The elastic telescopic box extends from the open end of the outer barrel to the closed end. Multiple water leakage holes are provided on one side of the elastic telescopic box. The closed end of the outer barrel is provided with a support block fixed on a fixed frame. An arc-shaped block is fixedly connected to the top of the support block. When the elastic telescopic box rotates with the outer barrel, it is blocked by the arc-shaped block and then retracts.

[0007] Furthermore, the elastic telescopic box includes an inner frame fixed to the inner wall of the outer barrel, an outer box with one end open is fitted outside the inner frame, a water leakage hole is opened on the outer box, and multiple springs are fixedly connected to the inner wall of the outer box.

[0008] Furthermore, an arc-shaped plate is fixedly connected to the end of the inner frame away from the outer box, and a first bolt is fixedly connected between the arc-shaped plate and the outer barrel.

[0009] Furthermore, the multi-angle spray assembly includes a spray pipe fixed to the bottom of the mounting frame, with multiple downward-extending first spray heads connected to the end of the spray pipe near the opening of the outer barrel, and multiple upward-extending second spray heads connected to the end of the spray pipe away from the opening of the outer barrel.

[0010] Furthermore, the spray pipe includes a high-level region, a low-level region, and an inclined region. The high-level region is fixed to the end of the fixing frame near the opening of the outer barrel, and the low-level region is located inside the outer barrel away from the opening. The high-level region and the low-level region are connected through the inclined region, and the height of the high-level region exceeds the height of the low-level region.

[0011] Furthermore, a rotating cylinder is rotatably connected to one end of the fixed frame near the opening of the outer barrel. Multiple stirring blades for stirring the feed inside the outer barrel are fixedly connected to the outside of the rotating cylinder. An air jet pipe with one end extending into the rotating cylinder is provided on the outside of the outer barrel. A guide port adapted to the stirring blades is opened on the outside of the rotating cylinder. The airflow inside the rotating cylinder moves along the stirring blades after passing through the guide port.

[0012] Furthermore, the stirring blade includes a connecting plate fixed on the rotating cylinder, a side plate fixedly connected to the end of the connecting plate away from the rotating cylinder, a bent plate fixedly connected to one end of the side plate, the side plate and the bent plate are combined to form a U-shape, and the side of the bent plate away from the side plate is an arc surface.

[0013] Furthermore, a first motor is fixedly connected to the top of the fixed frame, and a drive gear is connected to the output end of the first motor. A gear groove adapted to the drive gear is opened on the outer side of the rotating cylinder, and the drive gear meshes with the gear groove.

[0014] Furthermore, the fixing frame includes two longitudinal frames fixed on the main frame. The bottom of the longitudinal frames is provided with a crossbar, which extends into the outer barrel. The multi-angle spray assembly and the secondary spray assembly are both installed on the crossbar. The longitudinal frames and the crossbar are fixed together by a second bolt.

[0015] Furthermore, a second motor is fixedly connected to the side of the main frame, and a main shaft is connected to one end of the outer barrel. A belt is connected between the output end of the second motor and the main shaft for transmission.

[0016] The beneficial effects of this invention are: This invention, through its combined spraying assembly, can spray fermentation liquid onto feed in batches, avoiding the accumulation of fermentation liquid on the feed surface after concentrated spraying. This better promotes the mixing of fermentation liquid with feed and prevents adverse reactions between fermentation liquid and minerals and acidic substances in feed due to prolonged exposure to the liquid environment. Simultaneously, excess fermentation liquid sprayed at one end of the outer tank opening is collected and transferred to the end of the outer tank away from the opening for spraying. This balances the spray volume at both ends of the outer tank due to different distances from the water pump, allowing the spraying structure to adapt to longer mixing tanks.

[0017] This invention, through the setting of the arc-shaped plate and the first bolt, allows for the installation of different numbers of elastic telescopic boxes inside the outer barrel as needed, to meet the requirements for recovering fermentation liquid when absorbing different spray volumes. It can increase the spraying speed of fermentation liquid when the feed needs to be sprayed quickly, and recover the fermentation liquid that has not been absorbed by the feed, thus reducing the exposure time of fermentation liquid in the wet environment on the feed surface while ensuring the spraying speed.

[0018] This invention, through the design of an elastic telescopic box, can limit the feed, increase the height from which the feed falls from the inner wall of the outer bucket, and allow the feed to travel a longer distance in one circle inside the outer bucket. This prevents some feed from failing to reach the highest point when too much feed is being stirred, and improves the uniformity of feed mixing when a large amount of feed is being stirred.

[0019] The present invention, through the setting of a second spray head and spray pipe extending obliquely upward, can also push the feed falling downward from the inner wall of the outer barrel during spraying, slowing down the speed at which the feed falls from a height during the mixing process, so that the feed stays in the air for a longer time, making it easier to be mixed with the fermentation liquid from multiple directions, and accelerating the efficiency of mixing the fermentation liquid with the feed.

[0020] This invention, through the design of an outer tank and stirring blades, utilizes a horizontal stirring method as the primary technique, supplemented by stirring blades, to reduce the shear force exerted on the feed and fermentation broth during the stirring process, thereby reducing the possibility of physical damage to the enzyme protein structure in the fermentation broth.

[0021] This invention, through the design of stirring blades and jet pipes, can guide airflow through the gaps created between the feed during stirring, thereby drying the unabsorbed fermentation liquid between the feed to a greater extent and reducing the time that the fermentation liquid remains in the liquid environment on the surface of the feed. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a liquid spraying device for a feed mixer proposed in this invention; Figure 2 This is a front view of the outer tank of a liquid spraying device for a feed mixer proposed in this invention.

[0023] Figure 3 This is a schematic diagram of the combined spraying component structure of a liquid spraying device for a feed mixer proposed in this invention.

[0024] Figure 4 This is a partial cross-sectional view of the outer barrel of a liquid spraying device for a feed mixer proposed in this invention.

[0025] Figure 5 This is a partial cross-sectional view of the elastic telescopic box of a liquid spraying device for a feed mixer proposed in this invention.

[0026] Figure 6 This is a side view of the outer barrel of a liquid spraying device for a feed mixer according to the present invention.

[0027] Figure 7 This is a schematic diagram of the multi-angle spray component structure of a liquid spraying device for a feed mixer proposed in this invention.

[0028] Figure 8 This is a front view of the rotating cylinder and mixing blades of a liquid spraying device for a feed mixer according to the present invention.

[0029] Figure 9 This is a side view of the rotating cylinder and mixing blades of a liquid spraying device for a feed mixer according to the present invention.

[0030] In the diagram: 1. Main frame; 2. Outer tank; 3. Combined spray assembly; 31. Fixing frame; 311. Longitudinal frame; 312. Crossbar; 313. Second bolt; 32. Multi-angle spray assembly; 321. Spray pipe; 3211. High-level area; 3212. Low-level area; 3213. Inclined area; 322. First spray head; 323. Second spray head; 33. Secondary spray assembly; 331. Flexible telescopic box 3311. Inner frame; 3312. Outer box; 3313. Spring; 332. Support block; 333. Arc block; 34. Spiral plate; 4. Arc plate; 5. First bolt; 6. Rotating cylinder; 7. Stirring blade; 71. Connecting plate; 72. Side plate; 73. Bending plate; 8. Jet pipe; 9. Guide port; 10. First motor; 11. Drive gear; 13. Second motor; 14. Main shaft; 15. Belt. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0032] refer to Figures 1-9 The system includes a main frame 1, on which a horizontally rotating outer tank 2 is mounted. One end of the outer tank 2 is open. Inside the outer tank 2, there is a combined spray assembly 3 that sprays water in different areas using different methods. A feed hopper extending into the outer tank 2 is fixed to the main frame 1. The combined spray assembly 3 includes a fixing frame 31 extending to the outside of the outer tank 2. One end of the fixing frame 31 is fixed to the main frame 1. A multi-angle spray assembly 32 is located at the bottom of the fixing frame 31. Inside the outer tank 2, there is a secondary spray assembly that recovers the spray liquid from its open end and sprays it again to the closed end. The shower assembly 33 has a spiral plate 34 fixedly connected to the inner wall of the outer tub 2. The secondary spray assembly 33 includes an elastic telescopic box 331 fixed to the inner wall of the outer tub 2. The elastic telescopic box 331 extends from the open end of the outer tub 2 to the closed end. Multiple water leakage holes are opened on one side of the elastic telescopic box 331. The closed end of the outer tub 2 is provided with a support block 332 fixed on the fixing frame 31. An arc-shaped block 333 is fixedly connected to the top of the support block 332. When the elastic telescopic box 331 rotates with the outer tub 2, it is blocked by the arc-shaped block 333 and then retracts.

[0033] In this embodiment, feed is poured from the feed hopper into the open end of the outer barrel 2. When the outer barrel 2 rotates, its internal structure forms an effect similar to a screw conveyor, which moves the feed from one end of the outer barrel 2 opening to the other. The multi-angle spraying component 32 sprays an excess of fermentation liquid onto the open end of the outer barrel 2. This stage ensures that the feed is in full contact with the fermentation liquid during the first spray at the open end of the outer barrel 2. The excess fermentation liquid that is not absorbed by the feed flows into the secondary spraying component 33, which absorbs the unabsorbed fermentation liquid at the open end of the outer barrel 2. This stage avoids the fermentation liquid from being exposed to a wet state for a long time and causing adverse reactions with the minerals and acidic substances in the feed. The secondary spraying component 33 transports the fermentation liquid into the interior of the outer barrel 2, and then sprays the fermentation liquid onto the feed a second time from the end away from the open end of the outer barrel 2. In this way, while ensuring that the feed is in full contact with the fermentation liquid, it also prevents the fermentation liquid from accumulating on the feed surface for a long time and causing adverse reactions, compared to the common method of spraying the fermentation liquid into the feed in a concentrated manner. It maintains a good balance between insufficient and excessive contact between the feed and the fermentation liquid. Specifically, as the outer barrel 2 rotates, the feed inside creates an effect similar to a screw conveyor due to the limiting effect of the spiral plate 34. The feed moves along the spiral plate 34 as the outer barrel 2 rotates. Since the spiral plate 34 extends along the length of the outer barrel 2, the feed moves along the length of the outer barrel 2 as it slides on the surface of the spiral plate 34, continuously moving from the open end to the closed end of the outer barrel 2. During the rotation of the outer barrel 2, the feed inside is horizontally stirred. This process fully utilizes the characteristic that the closer the pipe is to the water pump, the higher the internal water pressure. The hydraulic pressure at the open end of the multi-angle spray assembly 32 inside the outer barrel 2 is relatively large, resulting in a larger amount of sprayed fermentation liquid. The multi-angle spray assembly 32 at the closed end inside the outer barrel 2... The hydraulic pressure at the location is relatively small, resulting in less sprayed fermentation liquid. Excess fermentation liquid falls onto the feed surface at the opening of the outer barrel 2. Some of the fermentation liquid soaks into the feed, ensuring that the feed is fully contacted and soaked by the fermentation liquid. Once the feed is saturated with the fermentation liquid, it can no longer absorb the fermentation liquid. The remaining fermentation liquid gradually flows to the inner wall of the outer barrel 2. The feed and the unsoaked fermentation liquid rotate with the outer barrel 2 until the fermentation liquid falls onto the elastic telescopic box 331 and enters the elastic telescopic box 331 through the drain hole. This separates the feed from the unabsorbed fermentation liquid on its surface, creating a dry-wet separation effect. This ensures that the feed remains dry after fully contacting and absorbing the fermentation liquid, preventing excessive liquid from remaining on the feed surface.

[0034] The fermentation liquid diffuses along the axis of the outer barrel 2 within the elastic telescopic box 331, allowing it to enter from the end of the elastic telescopic box 331 near the opening of the outer barrel 2 and then move to the other end. This transfers excess fermentation liquid from the opening end of the outer barrel 2 to the other end. As the elastic telescopic box 331 rotates and gradually moves to its highest point, it is blocked by the arc-shaped block 333 and then compressed. The internal structure of the elastic telescopic box 331 accelerates the outflow of the fermentation liquid from the end furthest from the opening of the outer barrel 2, thus transferring excess fermentation liquid from the opening of the outer barrel 2 and discharging it from the other end. The feed moving along the length of the outer barrel 2 is sprayed with fermentation liquid at the opening of the outer barrel 2 and gradually dries. To accelerate the drying speed of the fermentation liquid on the feed surface and ensure a dry environment for the feed surface, [further steps can be taken]. Continuous airflow into the outer tank 2 accelerates the drying of the feed surface after the fermentation liquid comes into contact with it. The feed, which has been sprayed with fermentation liquid and is gradually drying, moves to the closed end of the outer tank 2. The elastic telescopic box 331, in conjunction with the multi-angle spraying component 32, sprays the fermentation liquid into the outer tank 2 at the end away from the opening, thus performing a second spraying of the fermentation liquid onto the feed. This allows the fermentation liquid to be sprayed onto the feed in batches, avoiding the accumulation of the fermentation liquid on the feed surface after concentrated spraying. This promotes better mixing of the fermentation liquid and the feed and prevents the fermentation liquid from being exposed to the liquid environment for too long and causing adverse reactions with the minerals and acidic substances in the feed. At the same time, excess fermentation liquid sprayed at the open end of the outer tank 2 is collected and transferred to the end of the outer tank 2 away from the opening for spraying. This balances the spray volume at both ends of the outer tank 2 due to the different distances from the water pump, allowing the spraying structure to adapt to longer mixing tanks.

[0035] Reference Figure 3 , Figure 5 and Figure 6 The elastic telescopic box 331 includes an inner frame 3311 fixed to the inner wall of the outer barrel 2. An outer box 3312 with one end open is fitted outside the inner frame 3311. A water leakage hole is opened on the outer box 3312. Multiple springs 3313 are fixedly connected to the inner wall of the outer box 3312. The inner frame 3311 protrudes from the opening end of the outer barrel 2. After the elastic telescopic box 331 is squeezed and contracted, the protruding part squeezes the fermentation liquid out of the outer box 3312. An arc plate 4 is fixedly connected to the inner frame 3311 from the outer box 3312. A first bolt 5 is fixedly connected between the arc plate 4 and the outer barrel 2.

[0036] In this embodiment, the first bolt 5 is used to fix the arc plate 4 and the elastic telescopic box 331 inside the outer barrel 2. The sprayed fermentation liquid flows along its surface as the outer barrel 2 rotates. When it flows onto the outer box 3312, it enters the outer box 3312 and the inner frame 3311 through the water hole. When the arc plate 4 squeezes the outer box 3312, the inner frame 3311 protrudes away from the opening end of the outer barrel 2. When the inner frame 3311 and the outer box 3312 approach each other, the protrusion pushes the fermentation liquid in the inner frame 3311 to pass through the water hole more quickly and be discharged. The fermentation liquid between the outer box 3312 and the inner frame 3311 is squeezed out from the closed end of the outer barrel 2 and sprayed back onto the feed. This realizes the transfer of the fermentation liquid that was sprayed excessively at the opening of the outer barrel 2 in the first spray to the closed end of the outer barrel 2 for a second spray. Specifically, different numbers of elastic telescopic boxes 331 can be installed inside the outer barrel 2 as needed to meet the requirements for recovering fermentation liquid when absorbing different spray volumes. When the feed needs to be sprayed quickly, the spraying speed of the fermentation liquid can be increased, and the fermentation liquid that has not been absorbed by the feed can be recovered. While ensuring the spraying speed, the exposure time of the fermentation liquid in the wet environment on the surface of the feed is reduced. The spring 3313 pushes the outer box 3312 away from the inner frame 3311, so that the elastic telescopic box 331 extends to its maximum height. During the process of the outer barrel 2 driving the feed to rotate, the elastic telescopic box 331 can limit the feed, so that the feed is driven to a higher position by the outer barrel 2, increasing the height of the feed falling from the inner wall of the outer barrel 2, and making the distance that the feed moves in one circle inside the outer barrel 2 longer.

[0037] Compared to a structure without the elastic telescopic box 331 to limit feed movement, when the outer bucket 2 rotates, a situation arises where the feed, after being lifted a short distance, falls back to the middle of the outer bucket 2, covering the feed at the bottom. It is then moved to the edge of the outer bucket 2 and lifted again, causing the feed at the top of the outer bucket 2 to be continuously turned over, while the feed at the bottom remains covered and cannot be turned. The improved structure, with the addition of the elastic telescopic box 331, allows the feed to be transported to a higher position inside the outer bucket 2 before falling, while the feed at the bottom of the outer bucket 2 is constantly pushed up and turned by the elastic telescopic box 331, ensuring that all the feed is turned over and mixed with the fermentation liquid. Contact improves the uniformity of mixing when there is a large amount of feed. When the fermentation liquid that has not been immersed in the feed flows along the inner wall of the outer barrel 2 to the outer box 3312, the fermentation liquid enters the elastic telescopic box 331 through the water leakage hole. When the elastic telescopic box 331 moves to the highest point with the outer barrel 2, the elastic telescopic box 331 is blocked by the arc plate 4. The arc plate 4 squeezes the outer box 3312 and pushes the outer box 3312 to move towards the inner frame 3311. The outer box 3312 squeezes and contracts the spring 3313, reducing the height of the elastic telescopic box 331. The fermentation liquid in the elastic telescopic box 331 is squeezed out and sprayed again into the feed at the end of the outer barrel 2 away from the opening, completing the secondary spraying process of recycling the fermentation liquid.

[0038] Reference Figure 3 , Figure 6 and Figure 7 The multi-angle spray assembly 32 includes a spray pipe 321 fixed to the bottom of the mounting frame 31. The spray pipe 321 is connected to a plurality of downwardly extending first spray heads 322 at the end near the opening of the outer tub 2. The spray pipe 321 is connected to a plurality of obliquely upward extending second spray heads 323 at the end away from the opening of the outer tub 2. The spray pipe 321 includes a high region 3211, a low region 3212 and an inclined region 3213. The high region 3211 is fixed to the end of the mounting frame 31 near the opening of the outer tub 2. The low region 3212 is located inside the outer tub 2 at the end away from the opening. The high region 3211 and the low region 3212 are connected by the inclined region 3213. The height of the high region 3211 exceeds the height of the low region 3212.

[0039] In this embodiment, the fermentation liquid is sprayed from the high-level region 3211 to the feed over a long distance, resulting in a smaller impact force on the feed. Conversely, the fermentation liquid is sprayed from the low-level region 3212 to the feed over a shorter distance, resulting in a larger impact force on the feed. The impact force from the low-level region 3212 is used to push the feed upwards, slowing down the speed at which the feed falls through the air and thus increasing the contact time between the plastic and the sprayed fermentation liquid in the air.

[0040] Specifically, the spray pipe 321, located outside the outer barrel 2, is connected to a water pump and a storage tank for the fermentation liquid, transporting the fermentation liquid into the outer barrel 2. Utilizing the high water pressure at the end of the spray pipe 321 near the water pump, resulting in a large spray volume from the first spray head 322, and the low water pressure at the end of the spray pipe 321 away from the water pump, resulting in a small spray volume from the second spray head 323, the fermentation liquid is sprayed in large quantities from the first spray head 322 towards the open end of the outer barrel 2, accelerating the mixing of the fermentation liquid into the feed. As the outer barrel 2 rotates, the feed continuously moves from the open end to the closed end of the outer barrel 2 due to the limiting effect of the spiral plate 34. The second spray head... 323 provides supplemental spraying to the feed moved to the closed end of the outer barrel 2. Compared to spraying the same fermentation liquid once, this reduces the amount of fermentation liquid remaining on the feed surface after spraying, maintaining the dryness of the fermentation liquid surface. At the same time, the fermentation liquid recovered in the elastic telescopic box 331 is squeezed out and used to supplement the feed spraying. When spraying from the second spray head 323, due to its lower height and upward angle, it can also push the feed falling downward from the inner wall of the outer barrel 2, slowing down the speed at which the feed falls from a height during the mixing process. This allows the feed to stay in the air for a longer time, making it easier for the fermentation liquid to mix from multiple directions, thus accelerating the mixing efficiency of the fermentation liquid and the feed.

[0041] Reference Figure 3 , Figure 8 and Figure 9 A rotating cylinder 6 is rotatably connected to one end of the fixed frame 31 near the opening of the outer barrel 2. Multiple stirring blades 7 for stirring the feed inside the outer barrel 2 are fixedly connected to the outside of the rotating cylinder 6. An air jet pipe 8 is provided on the outside of the outer barrel 2, extending into the rotating cylinder 6. A guide port 9 adapted to the stirring blades 7 is opened on the outside of the rotating cylinder 6. The airflow inside the rotating cylinder 6 moves along the stirring blades 7 after passing through the guide port 9. The stirring blades 7 include a connecting plate 71 fixed on the rotating cylinder 6. A side plate 72 is fixedly connected to the end of the connecting plate 71 away from the rotating cylinder 6. A bending plate 73 is fixedly connected to one end of the side plate 72. The side plate 72 and the bending plate 73 are combined to form a U-shape. The side of the bending plate 73 away from the side plate 72 is an arc surface. A first motor 10 is fixedly connected to the top of the fixed frame 31. A drive gear 11 is connected to the output end of the first motor 10. A gear groove adapted to the drive gear 11 is opened on the outside of the rotating cylinder 6. The drive gear 11 meshes with the gear groove.

[0042] In this embodiment, the stirring blade 7 assists in stirring the feed in the outer barrel 2. The combination of the outer barrel 2 rotating and the stirring blade 7 rotating to stir the feed reduces the squeezing force on the feed by a single stirring method, thereby reducing the damage to the feed during the stirring process. During the stirring process, the guide port 9 delivers air from inside the feed pile to the feed, improving the drying effect on the fermentation liquid remaining between the feed piled in the inner layer.

[0043] Specifically, the first motor 10 drives the rotating drum 6 to rotate, which in turn drives the stirring blade 7 to rotate. During the rotation, the stirring blade 7 agitates the feed in the upper layer of the outer drum 2, assisting in the stirring of the feed. Compared with directly using the stirring blade 7 to stir the feed, this implementation scheme uses horizontal stirring as the main method and the stirring blade 7 as the auxiliary method, which reduces the shear force on the feed and fermentation liquid during the stirring process and reduces the possibility of physical damage to the enzyme protein structure in the fermentation liquid. At the same time, one end of the jet pipe 8 is connected to an air pump to deliver air into the rotating drum 6. After the airflow enters the interior of the rotating drum 6, it flows through the guide port 9 to the stirring blade 7 and flows along the side plate 72. Blocked by the bending plate 73, and then guided by the bending plate 73, the feed moves along the length of the outer barrel 2. As the stirring blade 7 pushes the feed, it creates a gap between the feed that is in the same direction as the length of the outer barrel 2. The air flowing along the bending plate 73 diffuses into the gap between the feed, blowing the fermentation liquid on a larger area of ​​the feed surface from the gap, increasing the dryness of the feed surface. It can use the gap created between the feed during stirring to guide the airflow from between the feed, further drying the unabsorbed fermentation liquid between the feed, and reducing the time that the fermentation liquid stays in the liquid environment on the feed surface.

[0044] Reference Figure 1 , Figure 3 and Figure 7 The fixed frame 31 includes two longitudinal frames 311 fixed on the main frame 1. The bottom of the longitudinal frame 311 is provided with a crossbar 312, which extends into the outer barrel 2. The multi-angle spray assembly 32 and the secondary spray assembly 33 are both installed on the crossbar 312. The longitudinal frame 311 and the crossbar 312 are fixed together by a second bolt 313. A second motor 13 is fixedly connected to the side of the main frame 1. A main shaft 14 is connected to one end of the outer barrel 2. A belt 15 is connected between the output end of the second motor 13 and the main shaft 14.

[0045] In this embodiment, the second motor 13 drives the outer barrel 2 and the feed inside the outer barrel 2 to rotate. The longitudinal frame 311 serves to fix the crossbar 312, the stirring blade 7, the multi-angle spray assembly 32 and the arc block 333, and acts as a support for the entire device.

[0046] Specifically, the second motor 13 drives the outer barrel 2 to rotate via the belt 15, and horizontally stirs the feed inside the outer barrel 2. The second bolt 313 fixes the crossbar 312 to the longitudinal frame 311. The crossbar 312 extends into the outer barrel 2. The crossbar 312 is fixed at two points to ensure the stability of the spray pipe 321 and the stirring blade 7 after they are fixed on the crossbar 312.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A liquid spraying device for a feed mixer, comprising a main frame (1), characterized in that, The main frame (1) is equipped with a horizontally rotating outer barrel (2), one end of which is open. The outer barrel (2) is equipped with a combined spraying assembly (3) that sprays in different ways in different areas. The main frame (1) is fixed with a feed hopper that extends into the outer barrel (2). The combined spray assembly (3) includes a fixed frame (31) extending to the outside of the outer barrel (2). One end of the fixed frame (31) is fixed on the main frame (1). A multi-angle spray assembly (32) is provided at the bottom of the fixed frame (31). A secondary spray assembly (33) is provided inside the outer barrel (2) to recover the spray liquid from its open end and spray it again to the closed end. A spiral plate (34) is fixedly connected to the inner wall of the outer barrel (2). The secondary spray assembly (33) includes an elastic telescopic box (331) fixed to the inner wall of the outer barrel (2). The elastic telescopic box (331) extends from the open end of the outer barrel (2) to the closed end. Multiple water leakage holes are provided on one side of the elastic telescopic box (331). The closed end of the outer barrel (2) is provided with a support block (332) fixed on the fixing frame (31). An arc-shaped block (333) is fixedly connected to the top of the support block (332). When the elastic telescopic box (331) rotates with the outer barrel (2), it is blocked by the arc-shaped block (333) and then retracts.

2. The liquid spraying device for a feed mixer according to claim 1, characterized in that, The elastic telescopic box (331) includes an inner frame (3311) fixed to the inner wall of the outer barrel (2), an outer box (3312) with one end open is fitted outside the inner frame (3311), a water leakage hole is opened on the outer box (3312), and multiple springs (3313) are fixedly connected to the inner wall of the outer box (3312).

3. The liquid spraying device for a feed mixer according to claim 2, characterized in that, An arc-shaped plate (4) is fixedly connected to the end of the inner frame (3311) away from the outer box (3312), and a first bolt (5) is fixedly connected between the arc-shaped plate (4) and the outer barrel (2).

4. The liquid spraying device for a feed mixer according to claim 1, characterized in that, The multi-angle spray assembly (32) includes a spray pipe (321) fixed to the bottom of the fixing frame (31). The spray pipe (321) is connected to a plurality of downwardly extending first spray heads (322) at the opening end near the outer barrel (2), and to a plurality of obliquely upward extending second spray heads (323) at the opening end away from the outer barrel (2).

5. A liquid spraying device for a feed mixer according to claim 4, characterized in that, The spray pipe (321) includes a high-level region (3211), a low-level region (3212), and an inclined region (3213). The high-level region (3211) is fixed to the end of the fixed frame (31) near the opening of the outer barrel (2), and the low-level region (3212) is located inside the outer barrel (2) away from the opening. The high-level region (3211) and the low-level region (3212) are connected by the inclined region (3213). The height of the high-level region (3211) exceeds the height of the low-level region (3212).

6. A liquid spraying device for a feed mixer according to claim 1, characterized in that, The fixed frame (31) is rotatably connected to a rotating cylinder (6) near the opening of the outer barrel (2). Multiple stirring blades (7) for stirring the feed in the outer barrel (2) are fixedly connected to the outside of the rotating cylinder (6). An air jet pipe (8) with one end extending into the rotating cylinder (6) is provided on the outside of the outer barrel (2). A guide port (9) adapted to the stirring blades (7) is opened on the outside of the rotating cylinder (6). The airflow inside the rotating cylinder (6) moves along the stirring blades (7) after passing through the guide port (9).

7. A liquid spraying device for a feed mixer according to claim 6, characterized in that, The stirring blade (7) includes a connecting plate (71) fixed on the rotating cylinder (6). A side plate (72) is fixedly connected to one end of the connecting plate (71) away from the rotating cylinder (6). A bending plate (73) is fixedly connected to one end of the side plate (72). The side plate (72) and the bending plate (73) are combined to form a U-shape. The side of the bending plate (73) away from the side plate (72) is an arc surface.

8. A liquid spraying device for a feed mixer according to claim 6, characterized in that, The top of the fixed frame (31) is fixedly connected to a first motor (10), and the output end of the first motor (10) is connected to a drive gear (11). The outer side of the rotating cylinder (6) is provided with a gear groove that matches the drive gear (11), and the drive gear (11) meshes with the gear groove.

9. A liquid spraying device for a feed mixer according to claim 1, characterized in that, The fixed frame (31) includes two longitudinal frames (311) fixed on the main frame (1). The bottom of the longitudinal frame (311) is provided with a crossbar (312). The crossbar (312) extends into the outer barrel (2). The multi-angle spray assembly (32) and the secondary spray assembly (33) are both installed on the crossbar (312). The longitudinal frame (311) and the crossbar (312) are fixed together by a second bolt (313).

10. A liquid spraying device for a feed mixer according to claim 1, characterized in that, The main frame (1) is fixedly connected to a second motor (13) on its side, and the outer barrel (2) is connected to a main shaft (14) at one end. A belt (15) is connected between the output end of the second motor (13) and the main shaft (14).

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