Magnetic separation device for rice processing

Abstract

The utility model relates to the technical field of rice processing, in particular to a magnetic separation device for rice processing, which comprises a vibration blanking machine, a guide component, a rice processing conveyor and a magnetic separation device positioned on the rice processing conveyor, the magnetic separation device comprises a fixing frame, a driving shaft rod and a return magnetic separation belt, the fixing frame is located at the top, close to the two ends of the outer wall, of the rice processing conveyor, the driving shaft rod is connected with the fixing frame through a bearing, the return magnetic separation belt is located on the driving shaft rod at the top of the rice processing conveyor in a return manner, and a magnetic separation plate is embedded in the middle of the return magnetic separation belt; the vibration discharging machine of an inclined structure is arranged for vibration discharging, an inclined guide plate is matched with a uniform conveying guide groove for uniform guide discharging while discharging is conducted, rice is prevented from being stacked, and the rice subjected to uniform guide conveying falls onto a conveying belt to be conveyed; and the return magnetic separation belt moves in a return stroke manner, so that rice has longer time and chance to be in contact with the magnetic separation magnetic plate, blind areas are reduced, and the comprehensiveness of magnetic separation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to a magnetic separation device for rice processing. Background Art

[0002] Rice, also known as paddy rice, is the staple food of half the world's population. It is made from rice grains through cleaning, husking, milling, and finishing. It is a staple food for most of China. Rice contains approximately 75% carbohydrates, 7%-8% protein, and 1.3%-1.8% fat, and is rich in B vitamins. The primary carbohydrate in rice is starch, while the primary protein is glutenin, followed by gelatin and globulin. The biological value and amino acid composition of rice protein are higher than those of cereals such as wheat, barley, millet, and corn. Its digestibility is 66.8%-83.1%, making it one of the highest among cereal proteins. The rice processing process primarily involves raw rice grains, cleaning (screening, air separation, magnetic separation, and stone removal), husking, color sorting, polishing, milling, rough rice separation, rice grading, electricity metering, and packaging.

[0003] A magnetic separation device for rice processing described in the prior art includes support plates. There are two groups of support plates, and inner rods are fixedly installed on the top of the two groups of support plates. The inner rods pass through the middle part of the sleeve, and material boxes are fixedly installed on the inside of the two groups of sleeves. A feed hopper is connected to the top of the material box, and an exciter is fixedly installed on the top of the left outer wall of the material box. A spring is provided on the lower side of the inner rod near the sleeve.

[0004] The above-mentioned magnetic separation device for rice processing forms a passage for rice to pass through by adjusting electromagnets a and b, thereby ensuring magnetic separation of rice. However, the electromagnets a and b in the above-mentioned magnetic separation device for rice processing are fixed. When rice passes through the feed hopper and enters the discharge port, the rice falls in an accumulated manner due to gravity, resulting in rice accumulation, which is prone to incomplete magnetic separation. Moreover, if there are many magnetic attachments on the electromagnets a and b, subsequent magnetic separation is affected, resulting in incomplete and incomplete magnetic separation. Utility Model Content

[0005] The purpose of the utility model is to provide a magnetic separation device for rice processing to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A magnetic separation device for rice processing includes a vibrating feeder, a guide assembly, a rice processing conveyor and a magnetic separation device located on the rice processing conveyor, wherein the guide assembly is located between the vibrating feeder and the rice processing conveyor, and the magnetic separation device includes a fixed frame, a driving shaft and a return magnetic separation belt. The fixed frame is located at the top of both ends of the rice processing conveyor near the outer wall, the driving shaft is connected to the fixed frame through a bearing, and the return magnetic separation belt is located on the driving shaft at the top of the rice processing conveyor. A magnetic separation plate is embedded in the return magnetic separation belt near the middle, and a magnetic separation stacking assembly is provided at the bottom of the return magnetic separation belt away from the guide assembly.

[0008] As a preferred solution of the present invention, the guide assembly includes a guide plate, which is arranged in an inclined structure with a side higher near the vibrating feeder and a side lower near the rice processing conveyor. Uniform conveying guide grooves are evenly and parallelly arranged on the guide assembly, and the uniform conveying guide grooves are arranged in a semicircular structure with an open top.

[0009] As a preferred solution of the present invention, the rice processing conveyor includes a conveyor frame and a conveyor belt located on the conveyor frame, the bottom of the fixed frame is connected to the top of both ends of the conveyor frame, and the guide plate outlet is located on the conveyor belt.

[0010] As a preferred solution of the present invention, the vibrating blanking machine includes a vibrating frame, a vibrating motor is provided on the outer walls on both sides of the vibrating frame, a vibrating screening mesh plate is provided on the top of the vibrating frame in an inclined structure, and the outlet of the vibrating screening mesh plate is connected to the inlet on the top of the guide plate.

[0011] As a preferred solution of the present invention, the magnetic separation stacking assembly includes a magnetic separation stacking scraper, which is inclined and located on the conveying frame at the return end of the return magnetic separation belt. The outer wall on one side of the top of the magnetic separation stacking scraper is provided with an arc structure tangent to the return magnetic separation belt, and a magnetic separation stacking box is connected to the outer wall of the conveying frame at the bottom of the magnetic separation stacking scraper.

[0012] As a preferred solution of the present invention, a drive motor is connected to the outer wall of the fixing frame, and the drive shaft extends through the fixing frame at one end close to the drive motor so that its outside is connected to the output end of the drive motor on the outer wall through a coupling.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In response to the problems raised in the background technology, the present application sets up a vibrating feeding machine with an inclined structure for vibrating feeding. While feeding, the guide plate cooperates with the uniform conveying guide groove to uniformly guide the feeding to prevent rice accumulation. The uniformly guided conveyed rice falls onto the conveyor belt for transportation, and is magnetically separated by a magnetic separation device to prevent rice accumulation and ensure the magnetic separation effect.

[0015] The return magnetic separation belt is set up, and the magnetic separation plate is embedded in the return magnetic separation belt. The return movement of the return magnetic separation belt allows the rice to have a longer time and opportunity to contact the magnetic separation plate, reducing blind spots and improving the comprehensiveness of magnetic separation, thereby increasing the probability of removing ferromagnetic impurities. The mobile magnetic separation plate reduces the problem of incomplete magnetic separation caused by the displacement and falling of rice, and improves the blind spots that may exist in traditional fixed electromagnets;

[0016] The return magnetic separation belt is equipped with a magnetic separation and accumulation scraper at the end. This scraper removes any debris adhering to the belt after magnetic separation, ensuring a clean surface during the return journey. This allows subsequent rice to more effectively contact the magnetic separation plates, thereby increasing the probability of removing ferromagnetic impurities and ensuring the quality of the rice product. Furthermore, the automation and continuity of the system improve production efficiency, meeting the needs of the modern grain processing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a side view of the overall structure of the utility model;

[0018] Figure 2 This is a top view of the rice processing conveyor of the present invention;

[0019] Figure 3 This is a schematic diagram of the guide assembly structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the top magnetic separation device of the utility model;

[0021] Figure 5 This is a top view of the return magnetic separation belt structure of the utility model.

[0022] In the figure: 1. Vibrating feeder; 11. Vibrating frame; 12. Vibrating screening screen; 2. Guide assembly; 21. Guide plate; 22. Uniform conveying guide trough; 3. Rice processing conveyor; 31. Conveyor frame; 32. Conveyor belt; 4. Magnetic separation device; 41. Fixed frame; 42. Drive shaft; 43. Return magnetic separation belt; 431. Magnetic separation plate; 432. Magnetic separation accumulation scraper; 44. Drive motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention. Example

[0024] See also Figure 1-4 The utility model provides a technical solution: a magnetic separation device for rice processing, comprising a vibrating feeder 1, a guide assembly 2, a rice processing conveyor 3 and a magnetic separation device 4 located on the rice processing conveyor 3, the guide assembly 2 is located between the vibrating feeder 1 and the rice processing conveyor 3, the magnetic separation device 4 comprises a fixed frame 41, a driving shaft 42 and a return magnetic separation belt 43. The fixed frame 41 is located at the top of both ends of the rice processing conveyor 3 near the outer wall, the driving shaft 42 is connected to the fixed frame 41 through a bearing, the return magnetic separation belt 43 is located on the driving shaft 42 at the top of the rice processing conveyor 3, and a magnetic separation plate is embedded in the return magnetic separation belt 43 near the middle. 431, a magnetic separation stacking assembly is provided at the bottom of one end of the return magnetic separation belt 43 away from the guide assembly 2; the magnetic separation stacking assembly includes a magnetic separation stacking scraper 432, which is inclined and located on the conveying frame 31 at the return end of the return magnetic separation belt 43, and an outer wall on one side of the top of the magnetic separation stacking scraper 432 is provided with an arc structure tangent to the return magnetic separation belt 43, and a magnetic separation stacking box is connected to the outer wall of the conveying frame 31 at the bottom of the magnetic separation stacking scraper 432; a drive motor 44 is connected to the outer wall of the fixed frame 41, and a drive shaft 42 extends through the fixed frame 41 near one end of the drive motor 44 so that its outside is connected to the output end of the drive motor 44 on the outer wall through a coupling.

[0025] It should be noted that, in this embodiment, the width of the magnetic separation plate 431 inside the return magnetic separation belt 43 is greater than the width of the conveyor belt 32 to ensure the magnetic separation coverage;

[0026] Furthermore, a magnetic separation plate 431 is embedded in the return magnetic separation belt 43. When the driving motor 44 rotates, the return magnetic separation belt 43 is driven by the driving shaft 42 to rotate in a return manner to magnetically separate the rice transported on the rice processing conveyor 3. The return moving magnetic separation plate 431 has a strong magnetic field. When the magnetic separation plate 431 passes through the rice impurities, these impurities will be adsorbed by the strong magnetic force of the magnetic plate, and non-ferromagnetic substances such as rice and other non-magnetic impurities will not be affected by the magnetic force and will continue to move along the original path, thereby achieving the separation of ferromagnetic impurities from non-ferromagnetic substances, reducing blind spots, improving the comprehensiveness of magnetic separation, and thus increasing the probability of removing ferromagnetic impurities. The movable magnetic separation plate 431 reduces the problem of incomplete magnetic separation caused by the displacement and falling of rice, and improves the blind spots that may exist in traditional fixed electromagnets.

[0027] Furthermore, a magnetic separation accumulation scraper 432 is provided at the end of the return magnetic separation belt 43, and the magnetic separation accumulation scraper 432 is used to clean the adhesions after magnetic separation on the return magnetic separation belt 43 to ensure that the surface of the return magnetic separation belt 43 is clean when returning, so that the rice passing through subsequently can contact the magnetic separation plate 431 more effectively, thereby increasing the probability of removing ferromagnetic impurities.

[0028] See also Figure 1 、 2 and 3, the guide assembly 2 includes a guide plate 21, the guide plate 21 is arranged in an inclined structure with a side higher near the vibrating feeder 1 and a side lower near the rice processing conveyor 3, and the guide assembly 2 is evenly and parallelly provided with uniform conveying guide grooves 22, and the uniform conveying guide grooves 22 are arranged in a semicircular structure with an open top; the rice processing conveyor 3 includes a conveying frame 31 and a conveyor belt 32 located on the conveying frame 31, the bottom of the fixed frame 41 is connected to the top of both ends of the conveying frame 31, and the outlet of the guide plate 21 is located on the conveyor belt 32; the vibrating feeder 1 includes a vibrating frame 11, and a vibrating motor is provided on the outer walls on both sides of the vibrating frame 11. The top of the vibrating frame 11 is provided with a vibrating screening screen 12 in an inclined structure, and the outlet of the vibrating screening screen 12 is connected to the inlet at the top of the guide plate 21.

[0029] It should be noted that, in this embodiment, a vibrating feeder 1 with an inclined structure is provided for vibrating feed, and the vibration of the vibration motor drives the vibrating screening mesh 12 to perform vibrating inclined feed, so that granular impurities smaller than rice fall off. While feeding, the guide plate 21 cooperates with the uniform conveying guide groove 22 to uniformly guide the feed to prevent rice accumulation. The uniformly guided and conveyed rice falls onto the conveyor belt 32 for transportation, and is magnetically separated by the magnetic separation device 4 to prevent rice accumulation and ensure the magnetic separation effect.

[0030] The working process of this utility model:

[0031] When in use, start the vibration motor, the rice processing conveyor 3 and the drive motor 44, put the magnetically separated rice on the top of the vibration screening mesh plate 12, and the vibration of the vibration motor drives the vibration screening mesh plate 12 to perform vibration-type tilted blanking, and granular impurities smaller than the rice fall off. At the same time, the guide plate 21 cooperates with the uniform conveying guide groove 22 to uniformly guide the blanking to prevent rice from piling up. The uniformly guided and conveyed rice falls on the conveyor belt 32 for conveying. When the drive motor 44 rotates, the return magnetic separation belt 43 is driven by the drive shaft 42 to rotate in a return manner to separate the rice conveyed on the rice processing conveyor 3. Magnetic separation: The magnetic separation plate 431 that moves in the return journey has a strong magnetic field. When the magnetic separation plate 431 passes through rice impurities, these impurities will be adsorbed by the strong magnetic force of the magnetic plate. Non-ferromagnetic materials such as rice and other non-magnetic impurities will not be affected by the magnetic force, so they will continue to move along the original path. The magnetic separation accumulation scraper 432 is used to clean the adhesions after magnetic separation on the return magnetic separation belt 43 to ensure that the surface of the return magnetic separation belt 43 is clean during the return journey, so that the rice that passes subsequently can contact the magnetic separation plate 431 more effectively, thereby increasing the probability of removing ferromagnetic impurities.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic separation device for rice processing, comprising a vibrating feeder (1), a guide assembly (2), a rice processing conveyor (3), and a magnetic separation device (4) located on the rice processing conveyor (3), characterized in that: The guide assembly (2) is located between the vibrating feeder (1) and the rice processing conveyor (3); the magnetic separation device (4) includes a fixed frame (41), a driving shaft (42) and a return magnetic separation belt (43); the fixed frame (41) is located at the top of both ends of the rice processing conveyor (3) near the outer wall; the driving shaft (42) is connected to the fixed frame (41) through a bearing; the return magnetic separation belt (43) is located on the driving shaft (42) at the top of the rice processing conveyor (3); a magnetic separation plate (431) is embedded in the return magnetic separation belt (43) near the middle; and a magnetic separation accumulation assembly is provided at the bottom of one end of the return magnetic separation belt (43) away from the guide assembly (2); The guide assembly (2) includes a guide plate (21), and the guide plate (21) is arranged in an inclined structure with a side closer to the vibrating feeder (1) being higher and a side closer to the rice processing conveyor (3) being lower. Uniform conveying guide grooves (22) are evenly and parallelly arranged on the guide assembly (2), and the uniform conveying guide grooves (22) are arranged in a semicircular structure with an open top.

2. A magnetic separation device for rice processing according to claim 1, characterized in that: The rice processing conveyor (3) comprises a conveying frame (31) and a conveying belt (32) located on the conveying frame (31); the bottom of the fixing frame (41) is connected to the tops of both ends of the conveying frame (31); and the outlet of the guide plate (21) is located on the conveying belt (32).

3. A magnetic separation device for rice processing according to claim 2, characterized in that: The vibrating blanking machine (1) comprises a vibrating frame (11), and vibrating motors are provided on the outer walls of both sides of the vibrating frame (11). The top of the vibrating frame (11) is provided with a vibrating screening screen (12) in an inclined structure, and the outlet of the vibrating screening screen (12) is connected to the inlet at the top of the guide plate (21).

4. A magnetic separation device for rice processing according to claim 2, characterized in that: The magnetic separation stacking assembly includes a magnetic separation stacking scraper (432), which is inclined and located on the conveying frame (31) at the return end of the return magnetic separation belt (43). An arc structure tangent to the return magnetic separation belt (43) is provided on the outer wall of one side of the top of the magnetic separation stacking scraper (432), and a magnetic separation stacking box is connected to the outer wall of the conveying frame (31) at the bottom of the magnetic separation stacking scraper (432).

5. The magnetic separation device for rice processing according to claim 1, wherein: A drive motor (44) is connected to the outer wall of the fixing frame (41), and one end of the drive shaft (42) close to the drive motor (44) extends through the fixing frame (41) so that its exterior is connected to the output end of the drive motor (44) on the outer wall via a coupling.

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