A kind of crushing and impurity removing device for feed processing

Abstract

The application provides a crushing and impurity removing device for feed processing, which comprises a base and a cavity box mounted on the base, the cavity box is divided into two groups of placement areas by a partition plate and accommodates a crushing mechanism and a stirring and impurity removing mechanism respectively, the crushing and impurity removing processes are physically isolated, the crushing mechanism comprises a crushing box in communication with a feeding hopper of the cavity box, a crushing component with a rotating disc blade is arranged at the bottom of the crushing box, a discharge pipe is arranged on the side, a screening plate is arranged below the discharge pipe to form a material collecting area, therefore, the raw materials are efficiently crushed through the triple effects of impact, shearing and grinding, and the coarse screen of the screening plate can intercept the uncrushed materials and large-particle impurities, a conveying pump is mounted on the partition plate to connect the material collecting area and a rotating drum of the stirring and impurity removing mechanism, overflow holes are arranged on the surface of the rotating drum and the aperture of the screening plate is larger than that of the overflow holes, therefore, when the materials are located in the rotating drum and rotate under the cooperation of the driving transmission component, a two-stage gradient screening system is formed, the impurities are efficiently removed by centrifugal force, and the double impurity removing effect is realized.

Description

Technical Field

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

[0002] Grinding is a fundamental and core process in feed processing, directly determining the efficiency of subsequent processes and the quality of the final product. Grinding increases the specific surface area of ​​feed ingredients, allowing animal digestive enzymes to come into more complete contact with nutrients. Furthermore, ground ingredients have better plasticity and binding properties. However, various impurities inevitably mix into feed ingredients during harvesting, transportation, and storage. Most existing feed processing operations use simple sieving or grinding to refine impurities, resulting in low separation accuracy and an inability to achieve precise impurity removal. Over-grinding is also prone to occur, which not only leads to a decline in feed quality but also leaves some harmful impurities behind, posing a safety hazard of damaging the digestive tract. Summary of the Invention

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

[0004] The technical solution of this application is implemented as follows: This application provides a crushing and impurity removal device for feed processing, including a base, a box with a cavity installed on the base, a partition is provided in the box to form a first placement area and a second placement area in the cavity, and a crushing mechanism and a stirring and impurity removal mechanism are provided in the box and located in the first placement area and the second placement area respectively. The crushing mechanism includes a crushing box. A feeding hopper is provided at the top of the box corresponding to the position of the crushing box and is connected to the crushing box. A crushing component is provided at the bottom of the crushing box. The crushing component includes a turntable. Blades are evenly distributed on the outer periphery of the turntable. A first drive motor is connected to the bottom of the turntable. A discharge pipe is provided on one side of the crushing box. A sieve plate is provided inside the box and located at the bottom of the discharge pipe, so that a material collection area is formed in the first placement area. The stirring and impurity removal mechanism includes a rotating drum and a drive transmission component. The rotating drum is located in the second placement area. The drive transmission component includes a main shaft. One end of the main shaft is rotatably mounted on the partition plate and located at the center of the rotating drum. The other end extends to the outside of the box and is connected to a second drive motor. Several spaced bushings are provided on the main shaft. Support rods are evenly distributed on the bushings and connected to the rotating drum. Overflow holes are evenly distributed on the rotating drum. The box is also equipped with a conveying pump installed on the partition. The input and output ends of the conveying pump are connected to pipelines and are located in the collection area and the rotating drum, respectively. The bottom of the box is also equipped with a discharge pipe, which is located in the second placement area and below the rotating drum; The aperture of the sieve plate is larger than the aperture of the overflow hole.

[0005] In one embodiment, the crushing mechanism further includes a cutting and dispersing component, and the cutting and dispersing component and the crushing component are vertically distributed inside the crushing chamber; The cutting and dispersing component includes a drive shaft, which is rotatably mounted inside the crushing chamber and equipped with a third drive motor. A rotating roller is sleeved on the drive shaft, and several spaced rods are arranged on the outer periphery of the rotating roller.

[0006] In one embodiment, a dust blowing assembly is also provided inside the box. The dust blowing assembly is located in the second placement area. The dust blowing assembly includes an air collecting seat, one end of which is connected to a partition and located above the rotating drum. The air collection base has an air inlet for connection to the outside. The gas collecting seat is inclined to the side facing the rotating cylinder and has several gas outlet pipes that are spaced apart along the length of the gas collecting seat.

[0007] In one embodiment, a push rod component is installed on the outside of the housing, and the piston end of the push rod component extends to the second placement area and is located on one side of the rotating drum; A connecting part is installed on the piston end, and a support is installed on the other end of the connecting part. A magnetic block or brush part is movably installed on the support. Through the cooperation of the push rod component, the support can be moved closer to or away from the rotating drum.

[0008] In one embodiment, a support unit is provided in the first placement area, the support unit is located below the crushing box, and the sieve plate is movably installed on the support unit; The support unit has a magnetic layer, and the sieve plate is made of magnetic material. When the sieve plate is placed on the support unit, the sieve plate and the support unit are magnetically connected.

[0009] In one embodiment, a heater is also installed on the housing, with the heater located above the rotating drum and its output end facing the rotating drum.

[0010] In one embodiment, a flow guide seat is provided inside the box and located below the rotating drum. Inclined ends are provided on both sides of the flow guide seat, and the two sets of inclined ends form a flow guiding area inside the flow guide seat. The discharge pipe is located within the flow guiding area.

[0011] In one embodiment, the diameter of the rotating cylinder gradually decreases from one end toward the partition to the other, giving the rotating cylinder a tapered cross-section.

[0012] In one embodiment, a vibration motor is installed on one side of the housing.

[0013] In one embodiment, the top of the box is provided with two sets of spaced openings that communicate with the interior of the box, and a box cover is hinged to the opening. An observation window is also provided on one side of the enclosure.

[0014] The advantages or beneficial effects of the above technical solutions include at least the following: This application discloses a crushing and impurity removal device for feed processing. A closed box with partitions is installed on the base, dividing the cavity into independent first and second placement areas, which respectively house the crushing mechanism and the stirring and impurity removal mechanism. Since the crushing mechanism uses a rotary blade-type crushing component with a top feed hopper and a side discharge pipe, the high-speed rotating blades can efficiently crush raw materials through impact, shearing, and grinding. Centrifugal force automatically throws the crushed material out tangentially, thus achieving the crushing operation. Simultaneously, a sieve plate is installed below the discharge pipe in the first placement area to form a coarse screening system, which can intercept incompletely crushed materials and large particles of impurities, preventing them from entering subsequent processes and causing blockages. This achieves preliminary grading of the crushed material. With the assistance of a conveying pump, the material is transported to the rotary drum. The drum rotates with the assistance of a drive transmission component. Since overflow holes are evenly distributed on the surface of the drum to form a fine screening system, and the sieve plate aperture is larger than the overflow hole aperture, a two-stage gradient screening system is formed, achieving a dual screening and impurity removal operation for the material, solving the problem of a single impurity removal method in existing feed processing. Attached Figure Description

[0015] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the description thereof, serve to explain the principles of the present application. These drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification.

[0016] Figure 1 A schematic diagram of the pulverizing and impurity removal device according to an embodiment of this application is shown from one perspective; Figure 2 A first-view cross-sectional structural schematic diagram of the crushing and impurity removal device according to an embodiment of this application is shown; Figure 3 A structural schematic diagram of the pulverizing and impurity removal device according to an embodiment of this application is presented from another perspective; Figure 4 A partial cross-sectional structural schematic diagram of the pulverizing and impurity removal device according to an embodiment of this application is shown; Figure 5 A second-view cross-sectional structural schematic diagram of the pulverizing and impurity removal device according to an embodiment of this application is shown; Figure 6 A third-view cross-sectional structural diagram of the pulverizing and impurity removal device according to an embodiment of this application is shown; Figure 7 Examples of this application are presented. Figure 2 Enlarged view of point A in the middle; Figure 8 Examples of this application are presented. Figure 4 Enlarged view of point B in the middle; Attached reference numerals: 1. Base; 2. Box body; 21. Partition plate; 22. Feed hopper; 23. Screen plate; 24. Discharge pipe; 25. Supporting part; 251. Magnetic layer; 26. Flow guide seat; 261. Inclined end; 27. Vibration motor; 28. Box cover; 29. ​​Observation window; 3. Crushing mechanism; 31. Crushing box; 311. Discharge pipe; 32. Crushing component; 321. Turntable; 322. Blade; 323. First drive motor; 33. Cutting and dispersing component; 331. Drive shaft; 3311. Third drive motor; 332. Rotary roller; 3321. Rod body; 4. Stirring and impurity removal mechanism; 41. Rotary drum; 411. Overflow hole; 42. Drive transmission component; 421. Main shaft; 422. Second drive motor; 423. Bushing; 4231. Support rod; 5. Transfer pump; 51. Piping; 6. Dust blowing assembly; 61. Air collection base; 611. Air inlet; 62. Air outlet pipe; 7. Push rod assembly; 71. Connecting part; 72. Support; 8. Heater. Detailed Implementation

[0017] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0018] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this application are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0020] It should be noted that the terms "a" and "several" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0021] The names of the messages or information exchanged between multiple devices in the embodiments of this application are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0022] Reference Figures 1-6 A crushing and impurity removal device for feed processing includes a base 1, on which a cavity box 2 is installed. The base 1 serves as the load-bearing foundation, and the box 2 with a closed cavity is installed on top. A partition 21 is provided inside the box 2 to form a first placement area and a second placement area within the cavity. The first placement area is the crushing operation area, and the second placement area is the impurity removal operation area. A crushing mechanism 3 and a stirring and impurity removal mechanism 4 are provided inside the box 2 and are respectively located in the first placement area and the second placement area. The integrated design of the integrated box 2 and the partitioned isolation integrates the two core processes of crushing and impurity removal into a single device. This not only reduces the floor space and material transfer links, but also avoids the strong vibration and dust generated in the crushing process from interfering with the operation stability of the impurity removal process. Furthermore, the closed box 2 can effectively suppress dust overflow. The crushing mechanism 3 includes a crushing chamber 31. A feed hopper 22 is located at the top of the chamber 2, corresponding to the position of the crushing chamber 31, and communicates with the crushing chamber 31. The crushing chamber 31 is a closed crushing cavity. The feed hopper 22 at the top of the chamber 2 communicates with the top of the chamber 2 to achieve centralized feeding. A crushing component 32 is located at the bottom of the crushing chamber 31. The crushing component 32 includes a turntable 321. Blades 322 are evenly distributed on the outer circumference of the turntable 321. A first drive motor 323 is connected to the bottom of the turntable 321. A discharge pipe 311 is located on one side of the crushing chamber 31. A sieve plate 23 is installed inside the chamber 2 and located at the discharge pipe 311. At the bottom, a collection area is formed in the first placement area. The first drive motor 323 drives the turntable 321 and blades 322 to rotate at high speed. The feed raw materials entering the crushing box 31 are crushed by the high-speed impact and shearing of the blades 322 and the mutual collision between materials. The crushed material is discharged through the discharge pipe 311 and falls onto the sieve plate 23. The qualified crushed material with a particle size smaller than the aperture of the sieve plate 23 passes through the sieve holes and enters the collection area. The incompletely crushed material or large impurities with an excessively large particle size are intercepted on the sieve plate, so that the material in the collection area is the material after the initial impurity removal and sieving operation. The stirring and impurity removal mechanism 4 includes a rotating drum 41 and a drive transmission component 42. The rotating drum 41 is located in the second placement area. The drive transmission component 42 includes a main shaft 421. One end of the main shaft 421 is rotatably mounted on the partition plate 21 and located at the center of the rotating drum 41. The other end extends to the outside of the housing 2 and is connected to a second drive motor 422. Several spaced bushings 423 are provided on the main shaft 421. Support rods 4231 are evenly distributed on the bushings 423 and connected to the rotating drum 41. The connection of the support rods 4231 enables the rotating drum 41 to rotate synchronously when the main shaft 421 rotates with the cooperation of the second drive motor 422. Simultaneously, it supports the rotating drum 41. Overflow holes 411 are evenly distributed on the rotating drum 41, which serves as the core cavity for impurity removal. The drum wall is densely covered with overflow holes 411 for material to pass through. The rotating drum 41 achieves centrifugal dynamic fine impurity removal through the drive transmission component 42. When the rotating drum 41 rotates at high speed with the main shaft 421, the internal material is fully scattered and tumbled under the combined action of centrifugal force and stirring force. Fine feed particles smaller than the overflow hole 411 are thrown out of the rotating drum 41 under centrifugal force, while small, heavy impurities larger than the overflow hole 411 are trapped inside the rotating drum 41. Compared with static screens, rotary dynamic screening effectively avoids screen clogging, significantly improving screening efficiency and impurity removal accuracy. The housing 2 is also equipped with a conveying pump 5 and installed on the partition 21. The conveying pump 5 can be a pneumatic conveying component in the prior art. The input and output ends of the conveying pump 5 are respectively connected to the pipeline 51 and are located in the collection area and the rotating drum 41 respectively. The conveying pump 5 serves as a connecting bridge between the crushing process and the impurity removal process, and continuously and quantitatively conveys the crushed material that has completed the preliminary screening in the collection area to the inside of the rotating drum 41, realizing the fully continuous production of the entire device and completely avoiding the problems of inefficiency, dust pollution and material loss caused by manual transfer. The bottom of the box 2 is also provided with a discharge pipe 24. The discharge pipe 24 is located in the second placement area and below the rotating drum 41. The discharge pipe 24 is used to collect qualified feed products thrown out from the overflow hole 411 of the rotating drum 41 and discharge them into the box 2 in a concentrated manner, which facilitates subsequent metering, packaging or transfer processes. A discharge valve is installed on the discharge pipe 24 to control the flow of materials. The aperture of the sieve plate 23 is larger than that of the overflow hole 411. By using the difference in aperture, two-stage gradient grading and impurity removal are achieved. The first-stage sieve plate 23 is a coarse sieve, which is responsible for removing large pieces of uncrushed material and large particles of impurities. The second-stage drum 41 overflow hole 411 is a fine sieve, which is responsible for removing small heavy impurities, thus ensuring the purity of the final feed product.

[0023] Based on the above structure, a continuous process flow of crushing, coarse screening, conveying, fine impurity removal, and finished product discharge is realized. The feed raw materials to be processed are fed into the enclosed crushing chamber 31 through the feed hopper 22. When the material is inside the crushing chamber 31, the first drive motor 323 drives the turntable 321 and blades 322 to rotate at high speed. The material is crushed into granules under impact, shearing, and collision. The crushed material is discharged through the discharge pipe 311 and falls onto the sieve plate 23 for grading. Materials of the qualified particle size are then processed. Upon entering the collection area, large particles of impurities are intercepted, achieving preliminary coarse screening of the material. Simultaneously, the conveying pump 5 continuously transports the material in the collection area to the inside of the rotating drum 41 through the pipeline 51. The rotating drum 41 rotates with the cooperation of the second drive motor 422, and the material inside the rotating drum 41 is fully dispersed under the action of centrifugal force. Fine particles of feed are thrown out through the overflow hole 411, while small heavy impurities are intercepted inside the rotating drum 41, achieving fine impurity removal of the material. Finally, the qualified feed product thrown out falls to the bottom of the second placement area and is centrally discharged through the discharge pipe 24. By integrating the four core processes into a single enclosed box 2, a two-stage impurity removal process of coarse screening and rotary centrifugal fine screening is achieved during the feed crushing process, improving the overall impurity removal accuracy. Furthermore, the fully continuous operation design, with the conveying pump 5 realizing automatic material transfer, improves the overall operating efficiency.

[0024] In one embodiment, reference is made to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The crushing mechanism 3 also includes a cutting and dispersing component 33, which is used to further crush the feed. The cutting and dispersing component 33 and the crushing component 32 are vertically distributed in the crushing box 31. The cooperation between the cutting and dispersing component 33 and the crushing component 32 can realize a two-stage crushing system of pre-cutting and fine crushing, making the crushing process more stable and efficient. The cutting and dispersing component 33 includes a drive shaft 331, which is rotatably mounted inside the crushing box 31 and equipped with a third drive motor 3311. The third drive motor 3311 is connected to the drive shaft 331 via a coupling. A rotating roller 332 is sleeved on the drive shaft 331, and several spaced rods 3321 are arranged on the outer periphery of the rotating roller 332. After the raw material enters the crushing box 31 from the feed hopper 22, it first falls onto the high-speed rotating roller 332. The rods 3321 exert a strong impact and cutting effect on large pieces and agglomerated raw materials, breaking them into several small pieces. At the same time, the high-speed rotating rods 3321 also generate a strong airflow, which evenly throws the dispersed material to the crushing component 32 below, so that the material can be evenly distributed on the rotating disc 321, avoiding local accumulation. This not only improves the crushing efficiency but also improves the uniformity of crushing.

[0025] In one embodiment, reference is made to Figure 1 , Figure 2 , Figure 4 and Figure 8 The housing 2 is also equipped with a dust blowing assembly 6, which is used to blow air onto the rotating drum 41. The dust blowing assembly 6 is located in the second placement area. The dust blowing assembly 6 includes an air collecting seat 61. One end of the air collecting seat 61 is connected to the partition 21 and is located above the rotating drum 41. One end of the air collecting seat 61 is fixed to the partition 21 by bolts, and its length is the same as that of the rotating drum 41. The air collecting seat 61 has an air inlet 611 for connecting to the outside. The air inlet 611 is used to receive compressed air generated by an external high-pressure blower, allowing air to enter the air collecting seat 61. The air collecting seat 61 is inclined to one side facing the rotating drum 41 and has several air outlet pipes 62, which are spaced apart along the length of the air collecting seat 61. When the gas in the air collecting seat 61 is ejected at high speed from each air outlet pipe 62, a spiral airflow field is formed inside the rotating drum 41. This allows the high-speed airflow to directly sweep the inner wall of the rotating drum 41 and the overflow hole 411, blowing off the materials and impurities attached to them and preventing the channels from being blocked. At the same time, the airflow generates an upward lift force inside the rotating drum 41, causing the lighter impurities with lower density to float upward and separate from the feed particles with higher density. Furthermore, the impact of the airflow can accelerate the qualified feed particles to move towards the side wall of the rotating drum 41, increasing the speed at which the particles pass through the overflow hole 411, thus playing a conveying role.

[0026] In one embodiment, reference is made to Figure 1 , Figure 2 , Figure 5 and Figure 6 A push rod component 7 is installed on the outside of the housing 2. The push rod component 7 adopts a pneumatic push rod or a hydraulic push rod in the prior art. The piston end of the push rod component 7 extends to the second placement area and is located on one side of the rotating drum 41, so that the piston section in the push rod component 7 can be inside the housing 2. A connecting part 71 is installed on the piston end, and a support 72 is installed on the other end of the connecting part 71. A magnetic block or a brush bristle is movably installed on the support 72. With the cooperation of the push rod component 7, the support 72 can be moved closer to or away from the rotating drum 41. When the magnetic block is installed, it is close to the rotating drum 41 and adsorbs the small ferromagnetic metal impurities thrown out through the overflow hole 411. When the brush bristle is installed and contacts the outer wall of the rotating drum 41, the bristles can brush the materials and impurities attached to the outer wall of the rotating drum 41 and the overflow hole 411, thereby achieving the effect of multiple uses in one machine. The cleaning head can be quickly changed according to the type of raw material impurities to adapt to different production needs.

[0027] In one embodiment, reference is made to Figure 2 , Figure 6 and Figure 7The first placement area is provided with a support part 25, which is used to support the sieve plate 23, thereby realizing the flexible installation of the sieve plate 23. The support part 25 is located below the crushing box 31, and the sieve plate 23 is movably installed on the support part 25. The support part 25 has a magnetic layer 251, and the sieve plate 23 is made of magnetic material. When the sieve plate 23 is placed on the support part 25, the sieve plate 23 and the support part 25 are magnetically connected. Since the sieve plate 23 is made of magnetic metal material, it not only undertakes the function of coarse screening, but also uses its own magnetism to adsorb ferromagnetic impurities when the material passes through, thereby achieving the first removal of metal impurities. At the same time, the magnetic connection does not require bolt fixing, which improves the convenience of disassembly and assembly, thus facilitating the later maintenance operation.

[0028] In one embodiment, reference is made to Figures 1-3 The housing 2 is also equipped with a warm air blower 8, which adopts the existing industrial warm air equipment. The warm air blower 8 is located above the rotating drum 41, and the output end of the warm air blower 8 faces the rotating drum 41. While centrifuging to remove impurities, the warm air blower 8 blows hot air into the rotating drum 41 to dry the material simultaneously. During the drying process, the material rotates in real time to ensure the degree of drying. The hot air reduces the moisture content of the material and prevents agglomeration. At the same time, it makes light impurities more fluffy and easier to be carried away by the dust blowing component 6. By performing the drying operation simultaneously with the material removal operation, not only are subsequent drying processes reduced, production costs and floor space reduced, but the dried material has better flowability. The dried light impurities are more easily separated by the airflow, avoiding agglomeration in the rotating drum 41 and blocking the overflow hole 411, thus improving the overall processing efficiency.

[0029] In one embodiment, reference is made to Figure 1 , Figure 4 and Figure 5 Inside the housing 2, a flow guide seat 26 is provided and located below the rotating drum 41. Inclined ends 261 are provided on both sides of the flow guide seat 26. The inclined ends 261 are integrally formed with the flow guide seat 26. The two sets of inclined ends 261 form a flow guiding area inside the flow guide seat 26. The discharge pipe 24 is located in the flow guiding area. Through the setting of the flow guide seat 26, qualified feed particles thrown out from the rotating drum 41 can fall onto the inclined ends 261 and automatically converge to the middle flow guiding area under the action of gravity, and be discharged through the discharge pipe 24. The inclined design avoids the accumulation of materials at the bottom of the housing 2, improves the discharge efficiency, and reduces the material residue at the bottom of the housing 2.

[0030] In one embodiment, reference is made to Figure 2 and Figure 4The diameter of the rotating drum 41 gradually decreases from one end toward the partition 21 to the other end, forming a conical cross section. When the conical rotating drum 41 rotates, the material is subjected to radial centrifugal force and also to a component force along the axial direction of the rotating drum 41, causing the material to move slowly from the large end to the small end. During the movement, qualified particles are continuously discharged through the overflow hole 411, while impurities gradually accumulate at the small end. This not only realizes automatic axial conveying of the material, but also increases the residence time of the material in the rotating drum 41, making the separation time more sufficient and further improving the impurity removal accuracy.

[0031] In one embodiment, reference is made to Figure 2 and Figure 3 A vibration motor 27 is installed on one side of the box 2. The vibration causes the material inside the box 2 to jump up and down, increasing the contact opportunity between the material and the overflow hole 411 or the sieve. The vibration is applied to both the primary screening and fine impurity removal processes, which significantly improves the screening efficiency and centrifugal separation effect. At the same time, it helps to clean the residual material inside the equipment and improve the overall impurity removal efficiency of the equipment.

[0032] In one embodiment, reference is made to Figures 1-3 The top of the chamber 2 has two sets of spaced openings that communicate with the interior of the chamber 2. The openings are hinged with chamber covers 28. The two sets of independent chamber covers 28 correspond to the crushing area and the impurity removal area respectively, and can be inspected and maintained separately without affecting each other. At the same time, the opening angle of the chamber cover 28 is up to 90°, ensuring sufficient internal maintenance space. The connection between the chamber cover 28 and the opening is sealed with a silicone rubber sealing strip. An observation window 29 is also provided on one side of the housing 2. The observation window 29 is made of tempered glass, which can be used to observe the operation status of each process such as crushing, screening and impurity removal in real time. By adding an independent maintenance cover 28 and a large-size observation window 29, the convenience of operation and maintenance of the equipment and the process monitoring capability are improved. This not only reduces the difficulty and cost of equipment maintenance, but also enables timely detection and handling of abnormal equipment conditions, thus avoiding major failures.

[0033] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Those skilled in the art should understand that the above embodiments are merely for illustrative purposes and are not intended to limit the scope of this application. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of this application.

Claims

1. A crushing and impurity removal device for feed processing, characterized in that: Includes a base, on which a box with a cavity is mounted, and a partition is provided inside the box to form a first placement area and a second placement area inside the cavity. A crushing mechanism and a stirring and impurity removal mechanism are provided inside the box and are respectively located in the first placement area and the second placement area. The crushing mechanism includes a crushing box. A feeding hopper is provided at the top of the box corresponding to the position of the crushing box and is connected to the crushing box. A crushing component is provided at the bottom of the crushing box. The crushing component includes a turntable. Blades are evenly distributed on the outer periphery of the turntable. A first drive motor is connected to the bottom of the turntable. A discharge pipe is provided on one side of the crushing box. A sieve plate is provided inside the box and located at the bottom of the discharge pipe, so that a material collection area is formed in the first placement area. The stirring and impurity removal mechanism includes a rotating drum and a drive transmission component. The rotating drum is located in the second placement area. The drive transmission component includes a main shaft. One end of the main shaft is rotatably mounted on the partition plate and located at the center of the rotating drum. The other end extends to the outside of the housing and is connected to a second drive motor. Several spaced bushings are provided on the main shaft. Support rods are evenly distributed on the bushings and connected to the rotating drum. Overflow holes are evenly distributed on the rotating drum. The box is also equipped with a conveying pump and installed on the partition plate. The input and output ends of the conveying pump are respectively connected to pipelines and are located in the collection area and the rotating drum. The bottom of the box is also provided with a discharge pipe, which is located in the second placement area and below the rotating drum; The aperture of the sieve plate is larger than the aperture of the overflow hole.

2. The pulverizing and impurity-removing device for feed processing according to claim 1, characterized in that: The crushing mechanism also includes a cutting and dispersing component, and the cutting and dispersing component and the crushing component are vertically distributed inside the crushing chamber; The cutting and dispersing component includes a drive shaft, which is rotatably disposed inside the crushing box and equipped with a third drive motor. A rotating roller is sleeved on the drive shaft, and several spaced rods are arranged on the outer periphery of the rotating roller.

3. The pulverizing and impurity-removing device for feed processing according to claim 1, characterized in that: The chamber is also equipped with a dust blowing assembly, which is located in the second placement area. The dust blowing assembly includes an air collecting seat, one end of which is connected to the partition and located above the rotating drum. The gas collecting base has an air inlet interface for connection to the outside; The gas collecting seat is inclined to one side facing the rotating cylinder and has several gas outlet pipes that are spaced apart along the length of the gas collecting seat.

4. The pulverizing and impurity-removing device for feed processing according to claim 1, characterized in that: A push rod component is installed on the outside of the box, and the piston end of the push rod component extends to the second placement area and is located on one side of the rotating drum; A connecting part is installed on the piston end, and a support is installed on the other end of the connecting part. A magnetic block or a brush bristle is movably installed on the support. Through the cooperation of the push rod component, the support can be moved closer to or further away from the rotating drum.

5. The pulverizing and impurity-removing device for feed processing according to claim 1, characterized in that: A support unit is provided in the first placement area, the support unit is located below the crushing box, and the sieve plate is movably installed on the support unit; The supporting part has a magnetic layer, and the sieve plate is made of magnetic material. When the sieve plate is placed on the supporting part, the sieve plate and the supporting part are magnetically connected.

6. The pulverizing and impurity-removing device for feed processing according to claim 1, characterized in that: A heater is also installed on the housing, and the heater is located above the rotating drum, with the output end of the heater facing the rotating drum.

7. The pulverizing and impurity-removing device for feed processing according to claim 1, characterized in that: The box is provided with a flow guide seat located below the rotating drum. The flow guide seat has inclined ends on both sides, and the two sets of inclined ends form a flow guiding area in the flow guide seat. The discharge pipe is located within the flow guiding area.

8. The pulverizing and impurity-removing device for feed processing according to claim 1, characterized in that: The diameter of the rotating cylinder gradually decreases from one end toward the partition to the other, giving the rotating cylinder a tapered cross-section.

9. The pulverizing and impurity-removing device for feed processing according to claim 1, characterized in that: A vibration motor is installed on one side of the box.

10. The pulverizing and impurity-removing device for feed processing according to claim 1, characterized in that: The top of the box has two sets of spaced openings that communicate with the interior of the box, and a box cover is hinged to the opening. An observation window is also provided on one side of the enclosure.

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