Impurity removal device for feed processing line

Abstract

The utility model relates to an impurity removal device for a feed processing line. Comprising a first support and a second support, a belt conveying line is installed between the first support and the second support, a feeding hopper is installed on the first support, an iron removal box is installed at a discharging opening of the feeding hopper, a permanent magnetic roller is rotationally connected into the iron removal box, and the iron removal device further comprises a rotation driving part. A scraping assembly is mounted in the iron removal box; the approaching driving assembly is used for driving the scraping assembly to move; the magnetic separation assembly is mounted on the second bracket; the magnetic separation assembly comprises a magnetic separation mounting base, the two ends of the magnetic separation mounting base are rotationally connected with a driven rotary drum and a driving rotary drum, and a magnetic separation belt is in transmission connection between the driven rotary drum and the driving rotary drum; the magnetic separation magnet, the chain wheel transmission pair and the magnetic separation driving motor are mounted on the magnetic separation mounting seat. The device can automatically clean iron impurities adsorbed on the surface of the permanent magnet cylinder, and can efficiently and thoroughly clean the iron impurities of feed or feed raw materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of feed production equipment, and in particular relates to an impurity removal device used in a feed processing line. Background Art

[0002] Feed is the general term for food for animals raised by humans. In a narrower sense, feed mainly refers to food for animals raised in agriculture or animal husbandry. Feed includes more than ten types of feed raw materials such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meal, whey powder, oils, meat and bone meal, grains, feed additives, etc.

[0003] In the process of feed production, metal impurities are often mixed in. The presence of impurities not only affects the quality of the product, but also increases the loss of feed processing equipment. At present, magnetic separation and impurity removal equipment is usually used to remove iron impurities in feed.

[0004] When the current magnetic separation and impurity removal equipment is in use, it is generally to absorb the metal debris inside the feed by rotating a drum with a permanent magnet. However, it is not possible to achieve a good impurity removal effect by rotating the drum alone, which reduces the efficiency of impurity removal. In addition, during the impurity removal process of the feed, iron impurities will be absorbed to the surface of the drum, but most of the existing permanent magnetic drums are not convenient to disassemble, so it is not convenient to clean the iron impurities on the surface of the permanent magnetic drum. Over time, the adsorption strength will decrease. At the same time, the iron impurities in the feed or feed raw materials cannot be completely removed, which affects the next process of feed processing and causes a decrease in production efficiency. Utility Model Content

[0005] The utility model provides a rationally designed impurity removal device for feed processing lines to solve the technical problems existing in the known technology. The utility model can automatically clean the iron impurities adsorbed on the surface of the permanent magnetic cylinder, and can efficiently and thoroughly remove the iron impurities from feed or feed raw materials.

[0006] The utility model adopts the following technical solution to solve the technical problems existing in the known technology: a de-impurity device for a feed processing line comprises a first bracket and a second bracket distributed in a front-to-rear manner, an inclined belt conveyor line is installed between the first bracket and the second bracket, an upper hopper located above the lower end of the belt conveyor line is installed on the first bracket, an iron removal box is installed at the discharge port of the upper hopper, a transversely arranged permanent magnetic roller is rotatably connected in the iron removal box, and also comprises a rotating driving part for driving the permanent magnetic roller to rotate; a scraper assembly that can move toward or away from the permanent magnetic roller is installed in the iron removal box for scraping The invention can remove iron impurities adsorbed on the surface of the permanent magnetic roller; it also includes a proximity drive component installed on the iron removal box for driving the scraper component to move; it also includes a magnetic separation component installed on the second bracket and located above the high end of the belt conveyor line; the magnetic separation component includes a magnetic separation mounting seat connected to the second bracket, and a driven rotating drum and a driving rotating drum arranged in parallel are rotatably connected at both ends of the magnetic separation mounting seat, and a magnetic separation belt is transmission-connected between the driven rotating drum and the driving rotating drum; it also includes a magnetic separation magnet installed on the magnetic separation mounting seat and located between the driven rotating drum and the driving rotating drum; it also includes a sprocket transmission pair and a magnetic separation drive motor for driving the driving rotating drum to rotate.

[0007] The advantages and positive effects of the utility model are as follows: the utility model provides an impurity removal device for a feed processing line, which can remove iron from the material in the upper hopper before the material is transmitted by setting a rotating permanent magnetic roller; by setting a scraper assembly and a proximity drive assembly that drives the scraper assembly to move, in cooperation with the rotation of the permanent magnetic roller, the iron filings impurities adsorbed on the outer peripheral surface of the permanent magnetic roller can be cleaned, to prevent the adsorption strength of the permanent magnetic roller from decreasing due to excessive iron filings, and the staff cannot manually clean the permanent magnetic roller, and the cleaning process is simple and convenient; by setting a magnetic separation assembly, the material transmitted by the belt conveyor line can be removed again, and the iron removal effect is further improved, and the iron impurities adsorbed by the magnetic separation magnet can be automatically transferred and cleaned after a preset working time, to prevent the adsorption strength of the magnetic separation magnet from decreasing due to excessive iron filings, and the staff does not need to manually perform cleaning operations.

[0008] Preferably: the scraper assembly includes a movable mounting seat provided with a slag suction chamber, a vent connected to the slag suction chamber is installed on the movable mounting seat, and the vent is connected to the suction fan through a gas pipeline; it also includes a scraper knife detachably connected to the lower end of the movable mounting seat and capable of frictionally contacting the rolling surface of the permanent magnetic roller; a space for accommodating impurities is provided between the end of the scraper knife that is in frictional contact with the outer peripheral surface of the permanent magnetic roller and the movable mounting seat.

[0009] Preferably: the approach drive assembly includes a cylinder seat fixed on the iron removal box, and a linear drive member is pivotally connected to the cylinder seat through a hinge seat; it also includes a mounting frame structure fixed on the iron removal box, a movable vertical plate slidably connected to the mounting frame structure is passed through the mounting frame structure, and a mounting connecting rod for connecting the scraper assembly is installed on the movable vertical plate; it also includes an L-shaped swing arm pivotally connected between the output end of the linear drive member and the mounting frame structure, and a driving ball head is installed on the outer end of the swing arm; it also includes a limiting angle piece installed on the movable vertical plate, and the driving ball head is embedded in the space formed by the limiting angle piece and the movable vertical plate.

[0010] Preferably: the mounting frame structure includes two groups of guide support rods fixed on the iron removal box, each guide support rod is fixed with a rod mounting piece, and also includes a pivot rod installed between the two groups of rod mounting pieces, the pivot rod is longitudinally arranged, and the middle part of the swing arm is pivotally connected to the pivot rod.

[0011] Preferably: a motor seat is installed on the magnetic separation mounting seat, and the magnetic separation drive motor is installed on the motor seat; the sprocket transmission pair includes a driving sprocket keyed to the output shaft of the magnetic separation drive motor, and also includes a driven sprocket keyed to the end of the driving drum, and a chain is connected in transmission between the driving sprocket and the driven sprocket.

[0012] Preferably: it also includes a material stopper installed on the belt conveyor line and located above its transmission surface, the bottom surface of the material stopper is adjacent to the transmission surface of the belt conveyor line and is gap-matched with the transmission surface; the material stopper includes a short plate member located downstream of the discharge port of the iron removal box, the short plate member spans the transmission surface of the belt conveyor line, and long plates are installed at both ends of the short plate member, and the long plate member extends along the transmission direction of the belt conveyor line.

[0013] Preferably: an inclined guide plate is installed in the iron removal box, the guide plate is located above the scraper assembly, the upper end of the scraper assembly is fixedly connected to the inner wall of the iron removal box, and the lower end is gap-matched with the outer circumferential surface of the permanent magnet roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a main structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the proximity drive assembly in the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the magnetic separation component in the utility model;

[0017] Figure 4 It is a schematic diagram of the main structure of the scraper assembly in the utility model.

[0018] In the figure: 1, first bracket; 2, belt conveyor line; 3, approach drive assembly; 3-1, rod mounting member; 3-2, pivot rod; 3-3, swing arm; 3-4, limit angle member; 3-5, guide support rod; 3-6, mounting connecting rod; 3-7, drive ball head; 3-8, movable vertical plate; 3-9, linear drive member; 4, scraper assembly; 4-1, movable mounting seat; 4-2, scraper knife; 4-3, slag suction chamber; 4-4, vent; 5. Upper hopper; 6. Permanent magnetic roller; 7. Rotary drive member; 8. Iron removal box; 9. Material blocking rack; 10. Collecting box; 11. Magnetic separation assembly; 11-1. Driven drum; 11-2. Motor seat; 11-3. Magnetic separation mounting seat; 11-4. Magnetic separation magnet; 11-5. Active drum; 11-6. Sprocket transmission pair; 11-7. Magnetic separation drive motor; 11-8. Magnetic separation belt; 12. Second bracket; 13. Lifting connector. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are described in detail as follows:

[0020] See also Figure 1 The impurity removal device for feed processing line of the utility model comprises a first bracket 1 and a second bracket 12 distributed in a front-to-back manner, an inclined belt conveyor line 2 is installed between the first bracket 1 and the second bracket 12, an upper hopper 5 located above the lower end of the belt conveyor line 2 is installed on the first bracket 1, an iron removal box 8 is installed at the discharge port of the upper hopper 5, a transversely arranged permanent magnetic roller 6 is rotatably connected in the iron removal box 8, and also comprises a rotating drive member 7 for driving the permanent magnetic roller 6 to rotate. An inclined guide plate is installed in the iron removal box 8, and the guide plate is located above the scraper assembly 4, the upper end of the scraper assembly 4 is fixedly connected to the inner wall of the iron removal box 8, and the lower end is gap-matched with the outer peripheral surface of the permanent magnetic roller 6.

[0021] like Figure 1 As shown, a scraper assembly 4 is installed in the iron removal box 8 and can move toward or away from the permanent magnet roller 6. It is used to scrape off the iron impurities adsorbed on the surface of the permanent magnet roller 6. It also includes a proximity drive assembly 3 installed on the iron removal box 8 for driving the scraper assembly 4 to move.

[0022] See also Figure 4The scraper assembly 4 includes a movable mounting seat 4-1 provided with a slag suction chamber 4-3, a vent 4-4 connected to the slag suction chamber 4-3 is installed on the movable mounting seat 4-1, and the vent 4-4 is connected to the suction fan through a gas pipeline; it also includes a friction scraper 4-2 that can be detachably connected to the lower end of the movable mounting seat 4-1 and can contact the rolling surface of the permanent magnetic roller 6; a space that can accommodate impurities is provided between the end of the scraper 4-2 that is in friction contact with the outer peripheral surface of the permanent magnetic roller 6 and the movable mounting seat 4-1. Among them, the end surface of the movable mounting seat 4-1 adjacent to the permanent magnetic roller 6 is arc-shaped to prevent the movable mounting seat 4-1 from contacting the outer peripheral surface of the permanent magnetic roller 6 when the scraper 4-2 contacts the permanent magnetic roller 6.

[0023] See also Figure 2 The approach drive assembly 3 includes a cylinder seat fixed on the iron removal box 8, and a linear drive member 3-9 is pivotally connected to the cylinder seat through a hinge seat. The linear drive member 3-9 can be a cylinder, a hydraulic cylinder or an electric cylinder. In this embodiment, the linear drive member 3-9 is an electric cylinder. The approach drive assembly 3 also includes a mounting frame structure fixed on the iron removal box 8, and a movable vertical plate 3-8 slidably connected to the mounting frame structure is penetrated on the mounting frame structure, and a mounting connecting rod 3-6 for connecting the scraper assembly 4 is installed on the movable vertical plate 3-8.

[0024] The approach drive assembly 3 also includes an L-shaped swing arm 3-3 pivotally connected between the output end of the linear drive member 3-9 and the mounting frame structure, and a driving ball head 3-7 is installed at the outer end of the swing arm 3-3. In addition, a Y-shaped connector is concealed at the end of the piston rod of the linear drive member 3-9 and is pivotally connected to the swing arm 3-3 through the Y-shaped connector. The approach drive assembly 3 also includes a limiting angle piece 3-4 installed on the movable vertical plate 3-8, and the driving ball head 3-7 is embedded in the space formed by the limiting angle piece 3-4 and the movable vertical plate 3-8.

[0025] like Figure 2 As shown, the above-mentioned mounting frame structure includes two groups of guide rods 3-5 fixedly connected to the iron removal box 8, each of which is fixedly connected to a rod mounting member 3-1, and also includes a pivot rod 3-2 installed between the two groups of rod mounting members 3-1, the pivot rod 3-2 is longitudinally arranged, and the middle part of the swing arm 3-3 is pivotally connected to the pivot rod 3-2. Two groups of limit sleeves are sleeved on the pivot rod 3-2, and the two groups of limit sleeves are respectively arranged on both sides of the swing arm 3-3 and connected to the pivot rod 3-2 through pins.

[0026] In the actual working process, the piston rod of the linear drive member 3-9 retracts, which can drive the swing arm 3-3 to flip axially around the pivot rod 3-2, and then drive the outer end of the swing arm 3-3 to flip inward and drive the driving ball head 3-7 installed thereon to flip inward. The inwardly flipped driving ball head 3-7 can push the movable vertical plate 3-8 to move inward along the guide support rod 3-5, so as to achieve the purpose of driving the scraper assembly 4 to move in the direction close to the permanent magnetic roller 6, so that the end of the scraper knife 4-2 in the scraper assembly 4 contacts the outer peripheral surface of the permanent magnetic roller 6, and cooperates with the rotating permanent magnetic roller 6 to scrape off the iron impurities adsorbed on the permanent magnetic roller 6. The scraped impurities fall into the space for accommodating impurities formed between the movable mounting seat 4-1 and the scraper knife 4-2. Under the action of the suction fan, fine iron slag impurities can be sucked to the outside of the impurity removal device of the utility model, and large iron impurities that cannot be sucked to the outside are retained in the slag suction chamber 4-3 for subsequent cleaning operations;

[0027] On the contrary, the piston rod of the linear drive member 3-9 extends out, which can drive the swing arm 3-3 to flip in the opposite direction around the axial direction of the pivot rod 3-2, thereby driving the outer end of the swing arm 3-3 to flip outward and driving the driving ball head 3-7 installed thereon to flip outward. The outward-flipped driving ball head 3-7 can push the limiting angle piece 3-4 to move outward, thereby driving the movable vertical plate 3-8 to move outward along the guide support rod 3-5, thereby achieving the purpose of driving the scraper assembly 4 to move in the direction away from the permanent magnet roller 6, so as to facilitate the permanent magnet roller 6 to perform subsequent impurity removal operations.

[0028] In addition, the upper hopper 5 is funnel-shaped, the iron removal box 8 is a rectangular parallelepiped structure, and a funnel-shaped discharge port is installed at the discharge port of the iron removal box 8. A window is opened on the side wall of the iron removal box 8 and an inspection window is installed on the window. After working for a period of time, the special impurities remaining on the scraper assembly 4 can be cleaned through the inspection window.

[0029] See also Figure 1 This embodiment also includes a magnetic separation assembly 11 mounted on the second bracket 12 and located above the high end of the belt conveyor line 2. For further information, see Figure 3 The magnetic separation assembly 11 includes a magnetic separation mounting seat 11-3 connected to a second bracket 12, and a plurality of lifting connectors 13 are installed between the second bracket 12 and the magnetic separation mounting seat 11-3 to connect the two. The lifting connectors 13 include lifting rings installed on the second bracket 12 and the magnetic separation mounting seat 11-3 respectively, and also include a steel wire rope installed between the corresponding lifting rings.

[0030] A driven drum 11-1 and a driving drum 11-5 arranged in parallel are rotatably connected at both ends of the magnetic separation mounting seat 11-3, and a magnetic separation belt 11-8 is transmission-connected between the driven drum 11-1 and the driving drum 11-5; the magnetic separation assembly 11 also includes a magnetic separation magnet 11-4 installed on the magnetic separation mounting seat 11-3 and located between the driven drum 11-1 and the driving drum 11-5; and also includes a sprocket transmission pair 11-6 and a magnetic separation drive motor 11-7 for driving the driving drum 11-5 to rotate.

[0031] In addition, a motor base 11-2 is installed on the magnetic separation mounting base 11-3, and a magnetic separation drive motor 11-7 is installed on the motor base 11-2; the sprocket transmission pair 11-6 includes a driving sprocket keyed to the output shaft of the magnetic separation drive motor 11-7, and also includes a driven sprocket keyed to the end of the driving drum 11-5, and a chain is connected for transmission between the driving sprocket and the driven sprocket.

[0032] The magnetic separation magnet 11-4 in the magnetic separation component 11 can adsorb and screen out iron filings in the material transmitted to the upper end of the belt conveyor line 2, and block the adsorption of the iron filings through the magnetic separation belt 11-8, and transmit the blocked and adsorbed iron filings through the magnetic separation belt 11-8. During the transmission process, the iron filings away from the magnetic separation magnet 11-4 fall to the collection box 10 arranged below the discharge end of the magnetic separation component 11 under the action of their own gravity.

[0033] like Figure 1 As shown, in order to prevent materials from falling during the transmission process, the present embodiment also includes a material blocking frame 9 installed on the belt conveyor line 2 and located above its transmission surface, and the bottom surface of the material blocking frame 9 is adjacent to the transmission surface of the belt conveyor line 2 and is gap-matched with the transmission surface; the material blocking frame 9 includes a short plate member located downstream of the discharge port of the iron removal box 8, and the short plate member spans the transmission surface of the belt conveyor line 2. Long plates are installed at both ends of the short plate member, and the long plate member extends along the transmission direction of the belt conveyor line 2.

[0034] Working process:

[0035] In the actual working process, the material falls into the upper hopper 5 and falls from the upper hopper 5 into the iron removal box 8. Under the action of the guide plate installed in the iron removal box 8, the material can contact with the rotating permanent magnetic roller 6 evenly and continuously, so that the iron impurities in the material are adsorbed on the outer peripheral wall of the permanent magnetic roller 6. The permanent magnetic roller 6 is driven to rotate by the output shaft of the rotating driving member 7, so that the outer peripheral wall of the permanent magnetic roller 6 can be fully and evenly contacted with the material, thereby improving the impurity removal efficiency. The material after impurity removal falls to the feed end of the belt conveyor line 2 through the discharge port of the iron removal box 8. The material is transmitted upward under the drive of the belt conveyor line 2 and falls downward at the discharge end; in the process of the belt conveyor line 2 transmitting the material upward, the magnetic separation magnet 11-4 in the magnetic separation component 11 can further adsorb the material on the belt conveyor line 2 to remove iron filings impurities in the material;

[0036] When the adsorbed iron impurities need to be cleaned after working for a period of time, the piston rod of the linear drive member 3-9 retracts, which can drive the swing arm 3-3 to flip around the axial direction of the pivot rod 3-2, and then drive the scraper assembly 4 to move in the direction close to the permanent magnetic roller 6, so that the end of the scraper knife 4-2 in the scraper assembly 4 contacts the outer peripheral surface of the permanent magnetic roller 6, and cooperates with the rotating permanent magnetic roller 6 to scrape off the iron impurities adsorbed on the permanent magnetic roller 6. Under the action of the suction fan, fine iron slag impurities can be sucked to the outside of the impurity removal device of the utility model, and large iron impurities that cannot be sucked to the outside are retained in the slag suction chamber 4-3 for subsequent cleaning operations; at the same time, the magnetic separation drive motor 11-7 in the magnetic separation assembly 11 is started, driving the magnetic separation belt 11-8 to run, and then transmitting the blocked and adsorbed iron filings. During the transmission process, the iron filings away from the magnetic separation magnet 11-4 fall to the collection box 10 arranged below the discharge end of the magnetic separation assembly 11 under the action of their own gravity.

Claims

1. An impurity removal device for a feed processing line, characterized in that: The invention comprises a first bracket (1) and a second bracket (12) arranged in a front-to-rear manner, an inclined belt conveyor line (2) is installed between the first bracket (1) and the second bracket (12), an upper hopper (5) located above the lower end of the belt conveyor line (2) is installed on the first bracket (1), an iron removal box (8) is installed at the discharge port of the upper hopper (5), a transversely arranged permanent magnetic roller (6) is rotatably connected in the iron removal box (8), and a rotating driving member (7) for driving the permanent magnetic roller (6) to rotate is also included; a scraper assembly (4) movable in a direction approaching or away from the permanent magnetic roller (6) is installed in the iron removal box (8) and is used to scrape off iron impurities adsorbed on the surface of the permanent magnetic roller (6); and an approach driving assembly (3) installed on the iron removal box (8) and used to drive the scraper assembly (4) to move. ); also includes a magnetic separation assembly (11) mounted on a second bracket (12) and located above the high end of the belt conveyor line (2); the magnetic separation assembly (11) includes a magnetic separation mounting seat (11-3) connected to the second bracket (12), a driven rotating drum (11-1) and a driving rotating drum (11-5) arranged in parallel are rotatably connected at both ends of the magnetic separation mounting seat (11-3), and a magnetic separation belt (11-8) is transmission-connected between the driven rotating drum (11-1) and the driving rotating drum (11-5); also includes a magnetic separation magnet (11-4) mounted on the magnetic separation mounting seat (11-3) and located between the driven rotating drum (11-1) and the driving rotating drum (11-5); and also includes a sprocket transmission pair (11-6) and a magnetic separation drive motor (11-7) for driving the driving rotating drum (11-5) to rotate.

2. The impurity removal device for a feed processing line according to claim 1, characterized in that: The scraper assembly (4) comprises a movable mounting seat (4-1) provided with a slag suction chamber (4-3); a vent (4-4) connected to the slag suction chamber (4-3) is mounted on the movable mounting seat (4-1); the vent (4-4) is connected to a suction fan via a gas pipeline; and further comprises a scraper (4-2) detachably connected to the lower end of the movable mounting seat (4-1) and capable of frictionally contacting the rolling surface of the permanent magnetic roller (6); and a space capable of accommodating impurities is provided between the end of the scraper (4-2) that is in frictional contact with the outer peripheral surface of the permanent magnetic roller (6) and the movable mounting seat (4-1).

3. The impurity removal device for a feed processing line according to claim 1, characterized in that: The approach drive assembly (3) includes a cylinder seat fixed on the iron removal box (8), and a linear drive member (3-9) is pivotally connected to the cylinder seat through a hinge seat; it also includes a mounting frame structure fixed on the iron removal box (8), a movable vertical plate (3-8) slidably connected thereto is passed through the mounting frame structure, and a mounting connecting rod (3-6) for connecting the scraper assembly (4) is installed on the movable vertical plate (3-8); it also includes an L-shaped swing arm (3-3) pivotally connected between the output end of the linear drive member (3-9) and the mounting frame structure, and a driving ball head (3-7) is installed on the outer end of the swing arm (3-3); it also includes a limiting angle piece (3-4) installed on the movable vertical plate (3-8), and the driving ball head (3-7) is embedded in the space formed by the limiting angle piece (3-4) and the movable vertical plate (3-8).

4. The impurity removal device for a feed processing line according to claim 3, characterized in that: The mounting frame structure comprises two groups of guide rods (3-5) fixedly connected to the iron removal box (8), each of which is fixedly connected to a rod mounting member (3-1), and also comprises a pivot rod (3-2) installed between the two groups of rod mounting members (3-1), the pivot rod (3-2) being longitudinally arranged, and the middle part of the swing arm (3-3) being pivotally connected to the pivot rod (3-2).

5. The impurity removal device for a feed processing line according to claim 1, characterized in that: A motor seat (11-2) is mounted on the magnetic separation mounting seat (11-3), and a magnetic separation drive motor (11-7) is mounted on the motor seat (11-2); the sprocket transmission pair (11-6) includes a driving sprocket key-connected to the output shaft of the magnetic separation drive motor (11-7), and also includes a driven sprocket key-connected to the end of the driving drum (11-5), and a chain is connected between the driving sprocket and the driven sprocket.

6. The impurity removal device for a feed processing line according to claim 1, characterized in that: It also includes a material blocking frame (9) installed on the belt conveyor line (2) and located above its transmission surface, the bottom surface of the material blocking frame (9) is adjacent to the transmission surface of the belt conveyor line (2) and is gap-matched with the transmission surface; the material blocking frame (9) includes a short plate member located downstream of the discharge port of the iron removal box (8), the short plate member spans the transmission surface of the belt conveyor line (2), and long plates are installed at both ends of the short plate member, and the long plate member extends along the transmission direction of the belt conveyor line (2).

7. The impurity removal device for a feed processing line according to claim 1, characterized in that: An inclined guide plate is installed in the iron removal box (8), and the guide plate is located above the scraper assembly (4). The upper end of the scraper assembly (4) is fixedly connected to the inner wall of the iron removal box (8), and the lower end is gap-matched with the outer peripheral surface of the permanent magnet roller (6).

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