Animal husbandry feed production, processing and stirring mechanism with pretreatment function

Abstract

The invention relates to the technical field of animal husbandry feed processing production machinery, and discloses an animal husbandry feed production processing stirring mechanism capable of pretreatment, the animal husbandry feed production processing stirring mechanism comprises a supporting assembly, the supporting assembly comprises a stirring barrel, the outer wall of the bottom of the stirring barrel is fixedly connected with a fixing frame, and the outer wall of the bottom of the fixing frame is fixedly connected with supporting legs; the outer wall of the bottom of the fixing frame is fixedly connected with a discharging pipe, the outer wall of the top of the fixing frame is fixedly connected with a first discharging opening, and in the process of adding powdery raw materials into the stirring tank, a suction pump can suck raised dust around the first discharging opening into a first connecting pipe through the first connecting pipe; and meanwhile, the agglomerated feed can be crushed by the stirring assembly, so that the loss of the raw materials can be reduced, the utilization rate of the raw materials can be increased, pollution to the working environment can be effectively avoided, and cleanness of the working environment and efficient utilization of the raw materials can be ensured.

Description

Technical Field

[0001] This invention relates to the field of livestock feed processing machinery technology, specifically to a pre-processable livestock feed production and mixing mechanism. Background Technology

[0002] In animal husbandry, different animals have different nutritional needs at different growth stages. Feed mixing can fully mix various raw materials such as corn, soybean meal, fish meal, vitamins, and minerals in precise formula ratios, so that each feed contains the balanced nutrition required for animal growth. This can avoid problems such as slow growth or disease caused by nutritional imbalances, and ensure the healthy growth of animals.

[0003] Patent application CN202022359633.5 discloses a discharge device for a pig feed mixer used in animal husbandry, including a mixing tank. A feed inlet is provided at the top of the mixing tank. A mixing motor is fixedly connected to the top of the mixing tank. An elastic coupling is rotatably connected to the outer surface of the motor shaft of the mixing motor. A mixing shaft is fixedly connected inside the elastic coupling. Mixing blades are fixedly connected to the outer surface of the mixing shaft. A mixing tank support column is fixedly connected to the bottom of the mixing tank. A discharge device is fixedly connected to the outer surface of the mixing tank on the side away from the feed inlet. A funnel groove is provided inside the discharge device. A pusher plate is slidably connected inside the mixing tank. A connecting handle is fixedly connected to the side of the pusher plate away from the discharge device.

[0004] In summary, when adding powdered raw materials to mixing equipment, dust often occurs, and lumps are easily formed during mixing. This not only leads to unnecessary loss of raw materials and reduces the utilization rate of raw materials, but also pollutes the working environment.

[0005] To address this, we propose a pre-processable mixing mechanism for livestock feed production and processing. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a pre-processable livestock feed production and mixing mechanism to solve the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pre-processable livestock feed production and processing mixing mechanism, comprising a support assembly, the support assembly including a mixing tank, a fixing frame fixedly connected to the bottom outer wall of the mixing tank, a support foot fixedly connected to the bottom outer wall of the fixing frame, a discharge pipe fixedly connected to the bottom outer wall of the fixing frame, a first discharge port fixedly connected to the top outer wall of the fixing frame, and a sliding groove formed on the inner wall of the mixing tank, further comprising: The mixing assembly includes a first sliding frame slidably connected to the inner wall of the mixing tank, a motor fixedly connected to the outer wall of the first sliding frame, the output end of the motor passing through the first sliding frame and fixedly connected to a drive wheel, a first protrusion fixedly connected to the inner wall of the first sliding frame, a connecting frame fixedly connected to the bottom outer wall of the first sliding frame, a mixing blade fixedly connected to the outer wall of the connecting frame, and an auxiliary assembly provided at the top of the first sliding frame. The discharge pipe is used to discharge the mixed feed in the mixing tank to the outside, and the mixing blade is used for mixing the feed.

[0008] According to the above technical solution, a square cone mixing block is fixedly connected to the inner wall of the connecting frame, and a first connecting rod is fixedly connected to the outer wall of the connecting frame away from the first sliding frame. A through pipe is provided in the middle of the square cone mixing block, and the square cone mixing block is used to stir the feed.

[0009] According to the above technical solution, an extrusion plate is fixedly connected to the outer wall of the first connecting rod away from the connecting frame, and an arc-shaped spring plate is fixedly connected to the inner wall of the mixing tank near the extrusion plate. The extrusion plate is used to push the clumped feed to the arc-shaped spring plate, and the arc-shaped spring plate is used to extrude the clumped feed.

[0010] According to the above technical solution, a second connecting rod is fixedly connected to the outer wall of the first connecting rod, and a connecting block is fixedly connected to the outer wall of the second connecting rod away from the first connecting rod. The outer wall of the connecting block is provided with a groove. The connecting block is used for stirring at the bottom of the mixing tank, and the groove is used to push the clumped feed to the extrusion plate.

[0011] According to the above technical solution, the auxiliary component includes a second sliding frame disposed on the top of the first sliding frame. The outer surface of the second sliding frame has a through hole. A fixed shaft is fixedly connected to the outer wall of the second sliding frame near the first sliding frame. The fixed shaft passes through the first sliding frame and is fixedly connected to a limit block. A second protrusion is fixedly connected to the outer surface of the limit block. A spring is fixedly connected to the outer wall of the second sliding frame near the limit block. The end of the spring away from the second sliding frame is fixedly connected to the first sliding frame. The spring is used for the reset of the second sliding frame. When the second protrusion contacts the first protrusion, the second sliding frame vibrates.

[0012] According to the above technical solution, a fixing block is fixedly connected to the top outer wall of the second sliding frame, an elastic component is fixedly connected to the outer wall of the fixing block, a first stirring rod is fixedly connected to the outer wall of the elastic component away from the fixing block, and a second stirring rod is fixedly connected to the outer wall of the second sliding frame close to the fixing block. The first stirring rod and the second stirring rod are used to prevent powdered feed from accumulating in the second sliding frame.

[0013] According to the above technical solution, a first connecting pipe is fixedly connected to the outer wall of the first discharge port away from the mixing tank. The end of the first connecting pipe away from the first discharge port passes through the mixing tank and is fixedly connected to a second discharge port. The first connecting pipe is used to adsorb the powdered feed dust near the first discharge port, and the second discharge port is used to discharge the powdered feed dust adsorbed by the first connecting pipe into the mixing tank.

[0014] According to the above technical solution, a second connecting pipe is fixedly connected to the outer wall of the second discharge port away from the first discharge port. The end of the second connecting pipe away from the second discharge port passes through the mixing tank and is fixedly connected to a suction pump. A buffer chamber is fixedly connected to the side of the second connecting pipe near the second discharge port. The buffer chamber is used to prevent dust from the powdered feed from being sucked into the suction pump. The suction pump creates a negative pressure in the mixing tank and the first connecting pipe.

[0015] Compared with the prior art, the present invention provides a pre-processable livestock feed production and processing mixing mechanism, which has the following beneficial effects: 1. This invention provides a pre-processable livestock feed production and processing mixing mechanism. When adding powdered raw materials to the mixing tank, the suction pump draws dust from the area around the first discharge port into the first connecting pipe, and then injects it into the mixing tank through the second discharge port. At the same time, the mixing components crush the clumped feed. This reduces raw material loss, improves raw material utilization, and effectively avoids pollution of the working environment, ensuring a clean working environment and efficient utilization of raw materials.

[0016] 2. By setting up a buffer chamber, the present invention can reduce the suction force during the process of powdered feed dust being sucked into the first connecting pipe from the first discharge port and then injected into the mixing tank through the second discharge port. This prevents the powdered feed dust from being sucked into the suction pump, thereby protecting the suction pump and ensuring the smooth operation of the entire dust collection and material transfer process.

[0017] 3. The present invention sets up a stirring assembly. The motor drives the first sliding frame to rotate along the inner wall of the stirring tank by means of the drive wheel. During this process, the stirring blades uniformly stir the feed in the stirring tank, while the extrusion plate pushes the clumps of feed settled at the bottom to the arc-shaped spring plate. Then, the arc-shaped spring plate and the extrusion plate work together to crush the clumps of feed, thereby reducing the loss of raw materials and improving the utilization rate of raw materials.

[0018] 4. By setting up auxiliary components, when powdered feed falls into the second sliding frame through the first and second feeding ports, it will compress the second sliding frame, causing the second sliding frame to slide against the inner wall of the first sliding frame. During this process, when the second protrusion contacts the first protrusion, the second sliding frame will vibrate. This can effectively prevent the through holes from being blocked by powdered feed. At the same time, with the first and second stirring rods, the feeding speed of powdered feed can be increased, avoiding the accumulation of powdered feed inside the second sliding frame and ensuring the smooth progress of the feeding process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is a schematic diagram of the overall front cross-sectional structure of the present invention; Figure 3 This is a cross-sectional view of the support component of the present invention; Figure 4 This is a schematic diagram of the stirring assembly and auxiliary assembly of the present invention; Figure 5 This is a cross-sectional view of the stirring assembly and auxiliary assembly of the present invention; Figure 6 This is a schematic diagram of the stirring assembly structure of the present invention; Figure 7 This is a schematic diagram of the auxiliary component structure of the present invention; Figure 8 For the present invention Figure 2 A magnified structural diagram of A in the diagram.

[0020] In the diagram: 1. Support assembly; 101. Mixing tank; 102. Sliding groove; 103. First discharge port; 104. First connecting pipe; 105. Second discharge port; 106. Second connecting pipe; 107. Buffer chamber; 108. Suction pump; 109. Fixing frame; 110. Support leg; 111. Arc-shaped spring plate; 112. Discharge pipe; 2. Mixing assembly; 201. First sliding frame; 202. Motor; 203. Drive wheel; 204. First protrusion; 205. 1. Connecting frame; 206. Conical mixing block; 207. Stirring blade; 208. First connecting rod; 209. Second connecting rod; 210. Connecting block; 211. Groove; 212. Extrusion plate; 3. Auxiliary components; 301. Second sliding frame; 302. Through hole; 303. Fixed shaft; 304. Limiting block; 305. Spring; 306. Second protrusion; 307. Fixed block; 308. Elastic component; 309. First stirring rod; 310. Second stirring rod. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] Example 1: See Figure 1-Figure 3 The present invention provides a technical solution: a pre-processable livestock feed production and processing mixing mechanism, including a support assembly 1, the support assembly 1 including a mixing tank 101, a fixing frame 109 fixedly connected to the bottom outer wall of the mixing tank 101, a support foot 110 fixedly connected to the bottom outer wall of the fixing frame 109, a discharge pipe 112 fixedly connected to the bottom outer wall of the fixing frame 109, a first discharge port 103 fixedly connected to the top outer wall of the fixing frame 109, and a sliding groove 102 formed on the inner wall of the mixing tank 101, and further including: The mixing assembly 2 includes a first sliding frame 201 slidably connected to the inner wall of the mixing tank 101. A motor 202 is fixedly connected to the outer wall of the first sliding frame 201. The output end of the motor 202 passes through the first sliding frame 201 and is fixedly connected to a drive wheel 203. A first protrusion 204 is fixedly connected to the inner wall of the first sliding frame 201. A connecting frame 205 is fixedly connected to the bottom outer wall of the first sliding frame 201. A mixing blade 207 is fixedly connected to the outer wall of the connecting frame 205. An auxiliary assembly 3 is provided on the top of the first sliding frame 201. When performing powdered feed mixing operations, the powder... The powdered feed is first injected into the mixing tank 101 through the first feed inlet 103. At the same time, the motor 202 starts, and the drive wheel 203 fixedly connected to its output end begins to rotate on the inner wall of the sliding groove 102. With the help of this rotation process, the motor 202 drives the first sliding frame 201 to slide inside the mixing tank 101. The bottom of the first sliding frame 201 is fixedly connected to the connecting frame 205, and the outer wall of the connecting frame 205 is fixed with the stirring blade 207. Finally, the rotation of the stirring blade 207 realizes the stirring operation of the powdered feed in the mixing tank, so that the feed is evenly mixed.

[0025] A first connecting pipe 104 is fixedly connected to the outer wall of the first discharge port 103 on the side away from the mixing tank 101. One end of the first connecting pipe 104, away from the first discharge port 103, passes through the mixing tank 101 and is fixedly connected to a second discharge port 105. The first connecting pipe 104 is used to adsorb powdery feed dust near the first discharge port 103. The second discharge port 105 is used to discharge the powdery feed dust adsorbed by the first connecting pipe 104 into the mixing tank 101. A second connecting pipe 106 is fixedly connected to the outer wall of the second discharge port 105 on the side away from the first discharge port 103. One end of the second connecting pipe 106 is located away from the second discharge port 105. The first end of the pipe 104 passes through the mixing tank 101 and is fixedly connected to the suction pump 108. The second connecting pipe 106 is fixedly connected to the buffer chamber 107 on the side near the second discharge port 105. Powdered feed dust is sucked into the first connecting pipe 104 from the first discharge port 103 and then injected into the mixing tank 101 through the second discharge port 105. During this process, the buffer chamber 107 starts to operate. It can reduce the suction force and prevent powdered feed dust from entering the suction pump 108, thereby protecting the suction pump 108 and allowing the dust suction and material transmission process to proceed smoothly and steadily, reducing equipment failure and malfunction that may be caused by dust being sucked into the suction pump 108.

[0026] Example 2: Please refer to Figures 4-6Based on Embodiment 1, the present invention provides a technical solution: a conical mixing block 206 is fixedly connected to the inner wall of the connecting frame 205, and a first connecting rod 208 is fixedly connected to the outer wall of the connecting frame 205 away from the first sliding frame 201. The conical mixing block 206 is shaped with one end larger than the other, and has a through pipe inside. When the first sliding frame 201 rotates, the powdered feed enters from the larger end of the conical mixing block 206 and then exits through the smaller end. Through this entry and exit process, the conical mixing block 206 can stir the powdered feed inside the mixing tank 101, making the feed more uniform and improving the effect and quality of feed mixing.

[0027] An extrusion plate 212 is fixedly connected to the outer wall of the first connecting rod 208 away from the connecting frame 205. An arc-shaped elastic plate 111 is fixedly connected to the inner wall of the mixing tank 101 near the extrusion plate 212. When the feed clumps together and settles to the bottom of the mixing tank 101 due to gravity, the extrusion plate 212 will move towards the clumped feed, pushing the clumped feed from its initial position to the arc-shaped elastic plate 111. Once the clumped feed comes into contact with the arc-shaped elastic plate 111, the arc-shaped elastic plate 111 will squeeze the clumped feed with its elastic deformation ability. This squeezing action can change the shape and internal structure of the clumped feed, causing the clumps to break up and disperse, allowing the feed to return to a loose and uniform state, ensuring the normal use and processing of the feed.

[0028] A second connecting rod 209 is fixedly connected to the outer wall of the first connecting rod 208. A connecting block 210 is fixedly connected to the outer wall of the second connecting rod 209 away from the first connecting rod 208. A groove 211 is provided on the outer wall of the connecting block 210. The connecting block 210 is used for stirring at the bottom of the mixing tank 101. When the first sliding frame 201 drives the connecting frame 205 to rotate, the connecting block 210 moves in a circular motion with the connecting frame 205. Because the outer surface of the connecting block 210 is provided with the groove 211, the connecting block 210 will generate a centrifugal force pointing outward during rotation. This centrifugal force can push the clumped feed in the groove 211 to the extrusion plate 212, thereby creating conditions for the subsequent processing of the clumped feed, ensuring that the clumping problem can be effectively solved during feed processing, and ensuring the quality of the feed.

[0029] Example 3: Please refer to Figure 7-Figure 8Based on Embodiments 1 and 2, the present invention provides a technical solution: the auxiliary component 3 includes a second sliding frame 301 disposed on the top of the first sliding frame 201. A through hole 302 is provided on the outer surface of the second sliding frame 301. A fixed shaft 303 is fixedly connected to the outer wall of the second sliding frame 301 near the first sliding frame 201. The fixed shaft 303 passes through the first sliding frame 201 and is fixedly connected to a limiting block 304. A second protrusion 306 is fixedly connected to the outer surface of the limiting block 304. A spring 305 is fixedly connected to the outer wall of the second sliding frame 301 near the limiting block 304. The end of the spring 305 away from the second sliding frame 301 is fixedly connected to the first sliding frame 201. When powdered feed enters from the first discharge port 103 and the second discharge port 105 and accumulates inside the second sliding frame 301... At this time, the gravity of the powdered feed will exert a downward squeezing force on the second sliding frame 301. Since the second sliding frame 301 and the first sliding frame 201 are in a sliding connection relationship, under this squeezing action, the second sliding frame 301 will slide along a specific direction on the inner wall of the first sliding frame 201. During the sliding process, when the second protrusion 306 on the second sliding frame 301 and the first protrusion 204 on the first sliding frame 201 come into contact with each other, an instantaneous collision and impact will occur. This collision and impact will cause the second sliding frame 301 to vibrate. The vibration is transmitted to the powdered feed inside through the second sliding frame 301, causing the feed to shake and loosen. This will prevent the powdered feed from being blocked at the through hole 302 due to compaction, clumping, or other reasons, and ensure that the powdered feed can pass through the through hole 302 smoothly.

[0030] A fixing block 307 is fixedly connected to the top outer wall of the second sliding frame 301. An elastic component 308 is fixedly connected to the outer wall of the fixing block 307. A first stirring rod 309 is fixedly connected to the outer wall of the elastic component 308 away from the fixing block 307. A second stirring rod 310 is fixedly connected to the outer wall of the second sliding frame 301 close to the fixing block 307. During the operation of the first sliding frame 201, the first stirring rod 309 and the second stirring rod 310 carry out stirring and loosening operations on the powdered feed, breaking up any lumps that may appear in the feed, and changing the possible dense stacking state, so that the powdered feed remains loose and uniform.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pre-processable livestock feed production and processing stirring mechanism, comprising a support assembly (1), the support assembly (1) comprising a stirring barrel (101), the bottom outer wall of the stirring barrel (101) being fixedly connected to a fixing frame (109), the bottom outer wall of the fixing frame (109) being fixedly connected to a supporting foot (110), the bottom outer wall of the fixing frame (109) being fixedly connected to a discharge pipe (112), the top outer wall of the fixing frame (109) being fixedly connected to a first discharge port (103), the inner wall of the stirring barrel (101) being provided with a sliding groove (102), characterized in that: Also included are: The stirring assembly (2) comprises a first sliding frame (201) slidably connected to the inner wall of the stirring barrel (101); a motor (202) is fixedly connected to the outer wall of the first sliding frame (201); an output end of the motor (202) passes through the first sliding frame (201) and is fixedly connected to a driving wheel (203); a first protrusion (204) is fixedly connected to the inner wall of the first sliding frame (201); a connecting frame (205) is fixedly connected to the outer wall of the bottom of the first sliding frame (201); a stirring blade (207) is fixedly connected to the outer wall of the connecting frame (205); an auxiliary assembly (3) is arranged on the top of the first sliding frame (201); a discharge pipe (112) is used to discharge the mixed feed in the stirring barrel (101) to the outside; and the stirring blade (207) is used to stir the feed.

2. The pre-processable livestock feed production and processing stirring mechanism according to claim 1, characterized in that: A square cone mixing block (206) is fixedly connected to the inner wall of the connecting frame (205), a first connecting rod (208) is fixedly connected to the outer wall of the connecting frame (205) on a side away from the first sliding frame (201), a through pipe is provided in the middle of the square cone mixing block (206), and the square cone mixing block (206) is used to stir feed.

3. The pre-processable livestock feed production and processing stirring mechanism according to claim 2, characterized in that: An extrusion plate (212) is fixedly connected to the outer wall of the first connecting rod (208) on the side away from the connecting frame (205), and an arc-shaped spring plate (111) is fixedly connected to the inner wall of the mixing barrel (101) on the side close to the extrusion plate (212). The extrusion plate (212) is used to push agglomerated feed to the arc-shaped spring plate (111), and the arc-shaped spring plate (111) is used to extrude the agglomerated feed.

4. The pre-processable livestock feed production and processing stirring mechanism according to claim 3, characterized in that: The outer wall of the first connecting rod (208) is fixedly connected to a second connecting rod (209); the outer wall of the second connecting rod (209) on a side away from the first connecting rod (208) is fixedly connected to a connecting block (210); a groove (211) is provided on the outer wall of the connecting block (210); the connecting block (210) is used for stirring at the bottom of the stirring barrel (101); and the groove (211) is used for pushing agglomerated feed to the extrusion plate (212).

5. The pre-processable livestock feed production and processing stirring mechanism according to claim 1, characterized in that: The auxiliary component (3) comprises a second sliding frame (301) arranged on the top of the first sliding frame (201); a through hole (302) is formed on the outer surface of the second sliding frame (301); a fixed shaft (303) is fixedly connected to an outer wall of the second sliding frame (301) close to the first sliding frame (201); the fixed shaft (303) passes through the first sliding frame (201) and is fixedly connected to a limit block (304); a second convex point (306) is fixedly connected to an outer surface of the limit block (304); a spring (305) is fixedly connected to an outer wall of the second sliding frame (301) close to the limit block (304); an end of the spring (305) away from the second sliding frame (301) is fixedly connected to the first sliding frame (201); the spring (305) is used for resetting the second sliding frame (301); when the second convex point (306) contacts the first convex point (204), the second sliding frame (301) vibrates.

6. The pre-processable livestock feed production and processing stirring mechanism according to claim 5, characterized in that: A fixed block (307) is fixedly connected to the top outer wall of the second sliding frame (301), an elastic component (308) is fixedly connected to the outer wall of the fixed block (307), a first stirring rod (309) is fixedly connected to the outer wall of the elastic component (308) away from the fixed block (307), and a second stirring rod (310) is fixedly connected to the outer wall of the second sliding frame (301) close to the fixed block (307). The first stirring rod (309) and the second stirring rod (310) are used to prevent powdered feed from accumulating in the second sliding frame (301).

7. The pre-processable livestock feed production and processing stirring mechanism according to claim 1, characterized in that: A first connecting pipe (104) is fixedly connected to an outer wall of a side of the first discharge port (103) away from the mixing barrel (101); an end of the first connecting pipe (104) away from the first discharge port (103) passes through the mixing barrel (101) and is fixedly connected to a second discharge port (105); the first connecting pipe (104) is used to absorb powdered feed dust near the first discharge port (103); and the second discharge port (105) is used to discharge the powdered feed dust absorbed by the first connecting pipe (104) into the mixing barrel (101).

8. The pre-processable livestock feed production and processing stirring mechanism according to claim 7, characterized in that: A second connecting pipe (106) is fixedly connected to an outer wall of a side of the second discharge port (105) away from the first discharge port (103); an end of the second connecting pipe (106) away from the second discharge port (105) passes through the mixing barrel (101) and is fixedly connected to a suction pump (108); a side of the second connecting pipe (106) close to the second discharge port (105) is fixedly connected to a buffer chamber (107); the buffer chamber (107) is used to prevent dust from powdered feed from being sucked into the suction pump (108); the suction pump (108) forms a negative pressure in the mixing barrel (101) and the first connecting pipe (104).

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