Rice magnetic separation device

Abstract

The utility model relates to the field of magnetic separation devices, and discloses a rice magnetic separation device which comprises a stirring mechanism used for assisting in stirring and preventing blockage, a conveying mechanism used for conveying raw materials, a paving mechanism used for paving the raw materials and a magnetic separation mechanism used for carrying out magnetic separation, a stirring motor is fixedly arranged on the upper end face of the mounting frame, a stirring rod is fixedly arranged at the output end of the mounting frame, a feeding cylinder is fixedly arranged on the inner side of the mounting frame, the mounting frame is mounted on one side of the upper end of the conveying mechanism, and the paving mechanism is arranged at the midpoint of the conveying mechanism through a mounting frame and comprises a bottom block. The two sides of the bottom block are connected with check blocks through connecting springs, and a plurality of dispersing blocks are fixedly arranged on the lower end face of the bottom block. According to the anti-blocking magnetic separation device, an anti-blocking structure is arranged, the effect of spreading and dispersing rice raw materials to be magnetically separated in the conveying process can be achieved, and meanwhile impurity collection after magnetic separation is rapidly achieved.

Description

Technical Field

[0001] This utility model relates to the field of magnetic separation devices, and in particular to a magnetic separation device for rice. Background Technology

[0002] Rice is a finished product made from paddy through processes such as cleaning, hulling, milling, and finishing. Traditional rice processing commonly uses equipment such as air separators, cylindrical sieves, screening machines, and magnetic separators for impurity removal. Many steps in rice processing involve iron machinery, resulting in iron filings being mixed into the rice. If these iron filings are not removed promptly, they will be packaged with the rice, affecting its production quality and potentially impacting consumer health. Magnetic separators are used to remove iron filings from rice.

[0003] The existing technology patent "CN214554431U, a magnetic separation device for rice refining, solves the problems of existing devices requiring additional cleaning of the electromagnet by workers, increasing their workload, reducing the electromagnet's adsorption performance, and causing rice to easily accumulate on the conveyor belt, thus reducing the electromagnet's adsorption effect. When cleaning iron filings from the electromagnet, the conveyor belt needs to be stopped and the electromagnet de-energized. The magnetic material falling on the electromagnet is collected by the container. Then, the electric pusher is activated, which moves the fixed strip and the collection box towards the electromagnet via the U-shaped connecting rod to clean and collect the residual magnetic material and dust on the electromagnet surface."

[0004] In the process of developing this application, the inventors discovered the following problems with the prior art: In the existing technical means, when cleaning iron filings on the electromagnet, the magnetic separation device needs to be stopped, which reduces the working efficiency of the magnetic separation device. Moreover, during use, the amount of iron filings on the electromagnet gradually increases with the increase of magnetic separation time, requiring manual observation to constantly monitor the amount of iron filings on the electromagnet to determine whether it is necessary to clean them, which increases the workload of the staff. If they are not cleaned in time, the adsorption performance of the electromagnet will also be reduced.

[0005] Therefore, those skilled in the art have provided a rice magnetic separation device to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rice magnetic separation device that not only has an anti-clogging structure but also achieves the effect of leveling and dispersing the rice raw material to be magnetically separated during the conveying process, while quickly collecting impurities after magnetic separation.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A rice magnetic separator includes an agitation mechanism for assisting stirring and preventing blockage, a conveying mechanism for conveying raw materials, a leveling mechanism for spreading the raw materials, and a magnetic separation mechanism for magnetic separation. The agitation mechanism includes a mounting frame, an agitation motor is fixedly mounted on the upper surface of the mounting frame, and an agitation rod is fixedly mounted on the output end of the mounting frame. A feed cylinder is fixedly mounted inside the mounting frame, and the mounting frame is mounted on one side of the upper end of the conveying mechanism. The leveling mechanism is mounted at the midpoint of the conveying mechanism via a mounting bracket. The leveling mechanism includes a bottom block, and both sides of the bottom block are connected to stop blocks by connecting springs. Multiple dispersing blocks are fixedly mounted on the lower surface of the bottom block.

[0009] The magnetic separation mechanism includes a frame, with rollers mounted on both the front and rear ends of the frame via bearings, and a second conveyor belt positioned on the outer side of the rollers. An electromagnet is mounted on the top of the frame via four connecting rods, and the electromagnet is located inside the second conveyor belt. A collection mechanism is mounted on one side of the lower end face of the frame via bolts.

[0010] Furthermore, the collection mechanism includes a collection box, which is connected to the frame by bolts. A guide plate is fixedly installed on the inner wall of the collection box, and a scraper is fixedly installed on the highest side of the guide plate. The upper surface of the scraper is in contact with the lower surface of the second conveyor belt, and there is a gap cavity between the scraper and the rear end face of the inner wall of the collection box.

[0011] Furthermore, the stirring rod is vertical and located at the midpoint inside the feed cylinder, and a discharge pipe is fixedly provided on the lower end face of the feed cylinder, with the discharge pipe located at the upper end of the conveying mechanism.

[0012] Furthermore, the conveying mechanism includes a support frame and a primary conveyor belt mounted on the support frame for conveying raw materials.

[0013] Furthermore, guide rods are fixedly installed on both sides of the upper end face of the base block, and an adjusting screw is rotatably connected to the midpoint of the upper end face of the base block via a bearing. The adjusting screw is threaded onto the mounting bracket, and a disc is fixedly installed on the upper end of each of the two guide rods, with the upper end of the guide rod penetrating the mounting bracket.

[0014] Furthermore, the leveling mechanism is located between the agitation mechanism and the magnetic separation mechanism, and the frame is fixedly installed on the upper end of the conveying mechanism on the side away from the agitation mechanism.

[0015] Furthermore, the second conveyor belt rotates counterclockwise, and one end of one of the two rollers is fixedly connected to a servo motor and connected to the output end of the servo motor.

[0016] This utility model has the following beneficial effects:

[0017] 1. The present invention proposes a rice magnetic separation device. This device adds a stirring mechanism at the feed cylinder. When the feed cylinder is blocked, the stirring mechanism disperses the raw material blocked at the discharge port, thereby achieving a good anti-blocking effect. The leveling mechanism set before the magnetic separation mechanism can adjust the leveling height of the raw material conveyed at the upper end of the conveying mechanism as needed, and can play an auxiliary dispersing role during the leveling process, thereby improving the subsequent magnetic separation effect.

[0018] 2. The rice magnetic separation device proposed in this utility model adds a magnetic separation mechanism to the rear of the conveying mechanism. During the conveying process, the raw materials are first dispersed and spread out. Then, when passing through the magnetic separation mechanism, the magnetic materials such as iron filings in the raw materials are attracted by the magnetic separation mechanism. That is, the electromagnet generates magnetic attraction to attract the magnetic materials such as iron filings. The electromagnet is located inside the second conveyor belt, so that the attracted magnetic materials such as iron filings are located on the surface of the second conveyor belt. Then, the second conveyor belt is transported to the collection mechanism on one side for collection. The collection mechanism has a scraping and cleaning effect on the surface of the conveyor belt. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the axial side structure of this utility model;

[0020] Figure 2 For the present utility model Figure 1 Another perspective structural diagram;

[0021] Figure 3 This is a schematic diagram of the magnetic separation mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the collection mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the paving mechanism of this utility model.

[0024] Legend:

[0025] 1. Feed cylinder; 2. Agitation mechanism; 201. Agitator motor; 202. Agitator rod; 203. Mounting frame; 3. Conveying mechanism; 301. Conveyor belt No. 1; 302. Support; 4. Mounting frame; 5. Leveling mechanism; 501. Adjusting screw; 502. Guide rod; 503. Stop block; 504. Bottom block; 505. Dispersing block; 506. Connecting spring; 6. Magnetic separation mechanism; 601. Frame; 602. Roller; 603. Electromagnet; 604. Conveyor belt No. 2; 605. Connecting rod; 7. Discharge pipe; 8. Collection mechanism; 801. Scraper; 802. Guide inclined plate; 803. Collection box. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-2 An embodiment of this utility model provides a rice magnetic separation device, including an agitation mechanism 2 for assisting agitation and preventing blockage, a conveying mechanism 3 for conveying raw materials, a leveling mechanism 5 for leveling raw materials, and a magnetic separation mechanism 6 for magnetic separation. The agitation mechanism 2 includes a mounting frame 203, an agitation motor 201 is fixedly mounted on the upper end of the mounting frame 203 and an agitation rod 202 is fixedly mounted on the output end, a feed cylinder 1 is fixedly mounted inside the mounting frame 203 and the mounting frame 203 is mounted on one side of the upper end of the conveying mechanism 3, the leveling mechanism 5 is mounted at the midpoint of the conveying mechanism 3 through a mounting bracket 4, the agitation rod 202 is vertical and located at the midpoint inside the feed cylinder 1, and a discharge pipe 7 is fixedly mounted on the lower end of the feed cylinder 1 and is located at the upper end of the conveying mechanism 3.

[0028] Specifically, the raw material is poured in from the top of the feed cylinder 1. The raw material slides down the feed cylinder 1 to the discharge pipe 7 and is collected on the conveying mechanism 3 for conveying. When the raw material is poured into the feed cylinder 1, the stirring motor 201 drives the stirring rod 202 connected to the output end to rotate. The stirring rod 202 stirs at the discharge port, so that it stirs the raw material introduced inside. The problem of clogging the discharge port can be reduced during the continuous movement of the raw material.

[0029] Reference Figure 1 and Figure 5 The leveling mechanism 5 includes a base block 504. Both sides of the base block 504 are connected to a stop block 503 via a connecting spring 506. Multiple dispersion blocks 505 are fixedly installed on the lower end face of the base block 504. Guide rods 502 are fixedly installed on both sides of the upper end face of the base block 504. An adjusting screw 501 is rotatably connected to the midpoint of the upper end face of the base block 504 via a bearing. The adjusting screw 501 is threaded onto the mounting frame 4. A disc is fixedly installed on the upper end of each of the two guide rods 502, and the upper end of the guide rod 502 passes through the mounting frame 4.

[0030] Specifically, during use, the adjusting screw 501 can be rotated by twisting it. Since the adjusting screw 501 is threadedly connected to the mounting bracket 4, the adjusting screw 501 will move up and down. The lower end of the adjusting screw 501 is rotatably connected to the bottom block 504, and the bottom block 504 is restricted from rotating by two guide rods 502, thereby pushing the bottom block 504 to move up and down. At the same time, the stop blocks 503 connected on both sides of the bottom block 504 by the connecting springs 506 can fit well against the inner wall of the bracket 302 of the conveying mechanism 3. The bottom block 504, together with the multiple dispersing blocks 505 set at the lower end, can play a role in spreading and dispersing the raw materials.

[0031] Reference Figure 1 , Figure 2 and Figure 3 The magnetic separation mechanism 6 includes a frame 601. Inside the frame 601, rollers 602 are mounted on both the front and rear ends via bearings, and a second conveyor belt 604 is set on the outside of the rollers 602. An electromagnet 603 is mounted on the top of the frame 601 via four connecting rods 605, and the electromagnet 603 is located inside the second conveyor belt 604. A collection mechanism 8 is mounted on one side of the lower end face of the frame 601 via bolts. A leveling mechanism 5 is located between the stirring mechanism 2 and the magnetic separation mechanism 6. The frame 601 is fixedly set on the upper end of the conveying mechanism 3 on the side away from the stirring mechanism 2. The second conveyor belt 604 rotates counterclockwise. One end of one of the two rollers 602 is fixedly connected to a servo motor and connected to the output end of the servo motor.

[0032] Specifically, during operation, the servo motor drives the roller 602 to rotate, thereby driving the completed second conveyor belt 604 to rotate and transport materials. This structure is a commonly used conveyor belt structure, and the technical means will not be elaborated here. The electromagnet 603 is located inside the second conveyor belt 604, with its lower end in contact with the lower end of the second conveyor belt 604. When magnetic materials such as iron filings contained in the raw materials at the upper end of the conveying mechanism 3 are attracted by the electromagnet 603, they will remain on the surface where the second conveyor belt 604 and the electromagnet 603 are in contact. Subsequently, when the second conveyor belt 604 is conveyed counterclockwise, when it separates from the electromagnet 603, the magnetic materials such as iron filings fall off and are collected by the collection mechanism 8 at the lower end. Here, the electromagnet 603 only attracts small magnetic materials such as iron filings contained in the rice raw materials and does not tightly attract and clamp the conveyor belt to the electromagnet 603 during the attraction process, so it will not interfere with the normal transportation of the conveyor belt.

[0033] Reference Figure 4 The collection mechanism 8 includes a collection box 803, which is connected to the frame 601 by bolts. A guide plate 802 is fixedly installed on the inner wall of the collection box 803, and a scraper 801 is fixedly installed on the highest side of the guide plate 802. The upper end face of the scraper 801 contacts the lower surface of the second conveyor belt 604, and there is a spaced cavity between the scraper 801 and the rear end face of the inner wall of the collection box 803.

[0034] Specifically, during use, the scraper 801 is in contact with the surface of the second conveyor belt 604. During the transmission and rotation process, the scraper 801 scrapes off the impurities remaining on the surface of the second conveyor belt 604 and they fall into the collection box 803 for unified collection. Since there is a certain distance between the scraper 801 and the outer edge of the collection box 803, that is, the edge of the collection box 803 is located at the edge where the electromagnet 603 separates from the second conveyor belt 604, it can better collect the falling iron filings and other magnetic materials.

[0035] Reference Figure 3 The conveying mechanism 3 includes a support 302 and a first conveyor belt 301 mounted on the support 302 for conveying raw materials. The conveying mechanism 3 adopts a conveyor belt structure commonly used in the prior art. Its internal structure and working principle are well known to those skilled in the art and are not the innovation of this patent. Therefore, this patent will not elaborate on its internal structure and working principle.

[0036] Working principle: When this magnetic separator is used, the rice raw material to be magnetically separated is poured into the feed cylinder 1 and collected by the discharge pipe 7 at the lower end and conveyed to the conveying mechanism 3. The rice raw material inside the feed cylinder 1 is stirred by the stirring mechanism 2 to reduce the clogging problem when it accumulates together.

[0037] Secondly, during the conveying process, the rice raw material first passes through the leveling mechanism 5. The bottom block 504 at the lower end of the leveling mechanism 5 has two sides connected by connecting springs 506, which can fit well against the inner wall of the support 302 of the conveying mechanism 3, thus playing a blocking role. The bottom block 504, together with the multiple dispersing blocks 505 at the lower end, can play a role in flattening and dispersing the raw material. Then, the flattened rice raw material passes through the magnetic separation mechanism 6. The electromagnet 603 at the lower end of the magnetic separation mechanism 6 attracts magnetic materials such as iron filings and keeps them on the surface where the second conveyor belt 604 and the electromagnet 603 are in contact. Then, when the second conveyor belt 604 is conveyed counterclockwise, when it is separated from the electromagnet 603, the magnetic materials such as iron filings fall off and are collected by the collection mechanism 8 at the lower end.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A rice magnetic separation device, comprising an agitation mechanism (2) for assisting stirring and preventing clogging, a conveying mechanism (3) for conveying raw materials, a leveling mechanism (5) for leveling the raw materials, and a magnetic separation mechanism (6) for magnetic separation, characterized in that: The stirring mechanism (2) includes a mounting frame (203), a stirring motor (201) is fixedly mounted on the upper end of the mounting frame (203) and a stirring rod (202) is fixedly mounted on the output end. A feed cylinder (1) is fixedly mounted inside the mounting frame (203) and the mounting frame (203) is mounted on one side of the upper end of the conveying mechanism (3). The leveling mechanism (5) is set at the midpoint of the conveying mechanism (3) through a mounting bracket (4). The leveling mechanism (5) includes a bottom block (504). Both sides of the bottom block (504) are connected to a stop block (503) through a connecting spring (506). A plurality of dispersing blocks (505) are fixedly mounted on the lower end of the bottom block (504). The magnetic separation mechanism (6) includes a frame (601). Inside the frame (601), rollers (602) are mounted on both the front and rear ends via bearings, and a second conveyor belt (604) is provided on the outside of the rollers (602). Electromagnets (603) are mounted on the top of the frame (601) via four connecting rods (605), and the electromagnets (603) are located inside the second conveyor belt (604). A collection mechanism (8) is mounted on one side of the lower end face of the frame (601) via bolts.

2. The rice magnetic separator according to claim 1, characterized in that: The collection mechanism (8) includes a collection box (803), which is connected to the frame (601) by bolts. A guide plate (802) is fixedly installed on the inner wall of the collection box (803), and a scraper (801) is fixedly installed on the highest side of the guide plate (802). The upper end face of the scraper (801) is in contact with the lower surface of the second conveyor belt (604), and there is a spaced cavity between the scraper (801) and the rear end face of the inner wall of the collection box (803).

3. The rice magnetic separator according to claim 1, characterized in that: The stirring rod (202) is vertical and located at the midpoint inside the feed cylinder (1). The feed cylinder (1) is fixedly provided with a discharge pipe (7) at the lower end face. The discharge pipe (7) is located at the upper end of the conveying mechanism (3).

4. The rice magnetic separator according to claim 1, characterized in that: The conveying mechanism (3) includes a support (302) and a first conveyor belt (301) mounted on the support (302) for conveying raw materials.

5. The rice magnetic separator according to claim 1, characterized in that: Guide rods (502) are fixedly installed on both sides of the upper end face of the bottom block (504). An adjusting screw (501) is rotatably connected to the midpoint of the upper end face of the bottom block (504) through a bearing. The adjusting screw (501) is threaded onto the mounting frame (4). A disc is fixedly installed on the upper end of each of the two guide rods (502), and the upper end of the guide rod (502) passes through the mounting frame (4).

6. The rice magnetic separator according to claim 1, characterized in that: The leveling mechanism (5) is located between the stirring mechanism (2) and the magnetic separation mechanism (6), and the frame (601) is fixedly installed on the side of the upper end of the conveying mechanism (3) away from the stirring mechanism (2).

7. The rice magnetic separator according to claim 1, characterized in that: The second conveyor belt (604) rotates counterclockwise, and one of the two rollers (602) is fixedly connected to a servo motor at one end and connected to the output end of the servo motor.

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