A new type of magnetic separator for rice processing

Abstract

This utility model provides a novel magnetic separator for rice processing, belonging to the field of magnetic separators. It includes a support frame and a magnetic separator mounted on the support frame. A sealed door is hinged to the bottom of the magnetic separator, and a feed pipe runs through the bottom of the sealed door. A feed funnel runs through the top of the magnetic separator. An electromagnet ring is installed on the inner wall of the magnetic separator. The separator also includes a dispersion mechanism: This dispersion mechanism is located inside the magnetic separator, allowing it to break up and evenly distribute the rice, ensuring full contact between the rice and the electromagnet ring and maximizing the adsorption of iron filings. By setting up this dispersion mechanism, a rotating dispersion plate radially throws the rice entering the magnetic separator, breaking up the rice flow channel and allowing the rice to better contact the electromagnet ring, improving the magnetic separation effect. Simultaneously, under the action of multiple sets of spiral dispersion strips, the rice grains are guided to fall spirally, increasing the residence time of the rice in the magnetic separator, thereby further improving the magnetic separation effect.

Description

Technical Field

[0001] This utility model relates to the field of magnetic separators, and more specifically, to a novel magnetic separator for rice processing. Background Technology

[0002] Rice, also known as paddy rice, is a food made from paddy rice through processes such as cleaning, hulling, milling, and finishing. Magnetic separators are used in the rice processing to remove metal impurities mixed in with the rice.

[0003] During rice magnetic separation, the rice is transported to the magnetic separator in free fall. During free fall, "rice flow channels" are easily formed, and the adsorption rate of iron filings in the edge area is low, which affects the magnetic separation effect. Moreover, most of the iron filings on the surface of the rice are in the micron range. If the rice clumps together, it will be difficult to contact the magnetic poles, thus reducing the adsorption effect of iron filings. How to invent a new type of rice processing magnetic separator to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a novel magnetic separator for rice processing, aiming to improve the existing magnetic separation process. When rice is transported to the magnetic separator, it falls freely, which easily forms a "rice flow channel". The iron filings adsorption rate in the edge area is low, thus affecting the magnetic separation effect. Moreover, most of the iron filings on the surface of the rice are in the micron range. If the rice clumps together, it will be difficult to contact the magnetic poles, thus reducing the adsorption effect of iron filings.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a novel magnetic separator for rice processing, including a support frame and a magnetic separator mounted on the support frame. The bottom of the magnetic separator is hinged with a sealing door, and a feed pipe is connected through the bottom of the sealing door. The top of the magnetic separator is connected through a feed funnel. An electromagnet ring is provided on the inner wall of the magnetic separator. The separator also includes a dispersion mechanism: the dispersion mechanism is located inside the magnetic separator, so it can break up and evenly disperse the rice, ensuring that the rice is in full contact with the electromagnet ring and fully adsorbing iron filings.

[0007] Preferably, the dispersing mechanism includes a rotating tube inside a magnetic separator, multiple sets of dispersing plates on the outer wall of the rotating tube, a fixed frame on the top of the magnetic separator, one end of the rotating tube passing through the top of the magnetic separator and the top of the fixed frame and connected to a rotary joint on the outside, one end of the rotary joint having an air inlet pipe, a fixed plate sleeved on the outer wall of the air inlet pipe, one end of the fixed plate being connected to the top of the fixed frame, a driven bevel gear sleeved on the outer wall of the rotating tube, a motor on the side wall of the fixed plate, and a driving bevel gear meshing with the driven bevel gear connected to the output end of the motor.

[0008] Preferably, the dispersion plate is arranged in an arc shape, and the inner sidewall of the dispersion plate is provided with multiple sets of dispersion strips, which are arranged in a spiral pattern on the inner wall of the dispersion plate.

[0009] Preferably, the rotating pipe is connected to the air intake pipe via a rotary joint, one end of the air intake pipe is connected to an external air pump, and multiple sets of air jet holes are opened on the outer wall of the rotating pipe, with the air jet holes inclined upward.

[0010] Preferably, the magnetic separator has a through hole at the top, and a bearing is sleeved on the outer wall of the rotating tube, with the bearing engaging with the inner wall of the through hole.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model, by setting up a dispersing mechanism, uses a rotating dispersing plate to radially scatter the rice entering the magnetic separator, breaking the rice flow channel and allowing the rice to make better contact with the electromagnet ring, thereby improving the magnetic separation effect; at the same time, under the action of multiple sets of spiral dispersing strips, the rice grains can be guided to fall spirally, increasing the residence time of the rice in the magnetic separator, thereby further improving the magnetic separation effect.

[0013] 2. This utility model, by setting up a rotating pipe, an air inlet pipe and an air jet hole, allows an external air pump to spray compressed air through the air inlet pipe and the rotating pipe, and then at an angle through the air jet hole, which lifts the rice grains to form a boiling flow field, causing the rice to suspend and roll, exposing the entire surface of the rice, and further improving the magnetic separation effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a left view of the internal structure of the magnetic separator of this utility model;

[0017] Figure 3 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0018] Figure 4 This is a utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0019] In the diagram: 1. Magnetic separator; 2. Feed hopper; 3. Dispersion mechanism; 300. Dispersion plate; 301. Rotating tube; 302. Fixed frame; 303. Air inlet pipe; 304. Rotary joint; 305. Driven bevel gear; 306. Fixed plate; 307. Motor; 308. Driven bevel gear; 309. Air jet; 310. Dispersion bar; 4. Support frame; 5. Feed pipe; 6. Sealing door; 7. Electromagnetic ring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example, refer to Figures 1-4 A novel magnetic separator for rice processing includes a support frame 4 and a magnetic separator 1 mounted on the support frame 4. The bottom of the magnetic separator 1 is hinged with a sealing door 6, and a feed pipe 5 is provided through the bottom of the sealing door 6. The top of the magnetic separator 1 is provided with a feed funnel 2. An electromagnet ring 7 is provided on the inner wall of the magnetic separator 1. The separator also includes a dispersing mechanism 3: the dispersing mechanism 3 is located inside the magnetic separator 1, so the dispersing mechanism 3 can break up and evenly disperse the rice, ensuring that the rice is in full contact with the electromagnet ring 7 and fully adsorbing iron filings.

[0022] It should be noted that: after the magnetically separated rice is discharged from the feed pipe 5, when it is necessary to clean the iron filings on the surface of the electromagnet ring 7, the sealing door 6 is opened and the power to the electromagnet ring 7 is turned off. The iron filings fall from the bottom of the magnetic separator 1, and at the same time, compressed air is sprayed out at an angle through the air jet hole 309, which can spray air onto the surface of the electromagnet ring 7 to achieve cleaning of the electromagnet ring 7.

[0023] The dispersing mechanism 3 includes a rotating tube 301 inside the magnetic separator 1. Multiple dispersing plates 300 are provided on the outer wall of the rotating tube 301. A fixed frame 302 is provided on the top of the magnetic separator 1. One end of the rotating tube 301 passes through the top of the magnetic separator 1 and the top of the fixed frame 302 and is connected to a rotary joint 304 provided on the outside. A through hole is opened on the top of the magnetic separator 1. A bearing is sleeved on the outer wall of the rotating tube 301. The bearing cooperates with the inner wall of the through hole. Under the action of the bearing, the rotating tube 301 rotates more stably. An air inlet pipe 303 is provided at one end of the rotary joint 304. A fixed plate 306 is sleeved on the outer wall of the air inlet pipe 303. One end of the fixed plate 306 is connected to the top of the fixed frame 302. A driven bevel gear 305 is sleeved on the outer wall of the rotating tube 301. A motor 307 is provided on the side wall of the fixed plate 306. An active bevel gear 308 that meshes with the driven bevel gear 305 is connected to the output end of the motor 307.

[0024] It should be noted that the motor 307, driven bevel gear 305 and driving bevel gear 308 work together to drive the dispersing plate 300 to rotate, so that the dispersing plate 300 can impact the rice and cause it to spread radially.

[0025] The dispersion plate 300 is arranged in an arc shape, and the inner wall of the dispersion plate 300 is provided with multiple sets of dispersion strips 310, which are arranged in a spiral on the inner wall of the dispersion plate 300.

[0026] It should be noted that the spiral dispersing strip 310 can guide the rice to fall in a spiral, increasing the retention time of the rice, thereby extending the adsorption time of the electromagnet ring 7 and improving the adsorption effect.

[0027] The rotating pipe 301 is connected to the air intake pipe 303 through the rotary joint 304. One end of the air intake pipe 303 is connected to an external air pump. Multiple sets of air jet holes 309 are opened on the outer wall of the rotating pipe 301. The air jet holes 309 are inclined upward.

[0028] It should be noted that the jet nozzle 309 is tilted upward at 15 degrees, so that compressed air is ejected at an angle through the jet nozzle 309, which can lift the rice to form a boiling flow field. As a result, the rice grains collide with the inner wall of the electromagnet ring 7 multiple times under the push of the airflow, thereby improving the adsorption effect.

[0029] Working principle: Rice falls into the magnetic separator 1 through the feed hopper 2. The motor 307 and external air pump are started, and the electromagnet ring 7 is energized. The motor 307 drives the active bevel gear 308 to rotate, which in turn drives the driven bevel gear 305 to rotate. The driven bevel gear 305 drives the rotating tube 301 to rotate, which in turn drives the dispersing plate 300 to rotate. The dispersing plate 300 impacts the rice clumps, causing them to spread radially. The spiral dispersing strip 310 guides the rice to fall in a spiral. At the same time, the external air pump delivers compressed air through the air inlet pipe 303 and the rotating tube 301, and sprays it obliquely through the jet nozzle 309, lifting the rice to form a boiling flow field. Under the impetus of the airflow, the rice collides with the inner wall of the electromagnet ring 7 multiple times. Iron filings are adsorbed and retained on the wall of the electromagnet ring 7. The purified rice is discharged through the feed pipe 5.

[0030] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel magnetic separator for rice processing, comprising a support frame (4) and a magnetic separator (1) mounted on the support frame (4), wherein a sealing door (6) is hinged to the bottom of the magnetic separator (1), a feeding pipe (5) is provided through the bottom of the sealing door (6), and a feeding funnel (2) is provided through the top of the magnetic separator (1), characterized in that, The magnetic separator (1) has an electromagnet ring (7) on its inner wall, and also includes: Dispersing mechanism (3): The dispersing mechanism (3) is set inside the magnetic separator (1), so the dispersing mechanism (3) can break up the rice and disperse it evenly, ensuring that the rice is in full contact with the electromagnet ring (7) and fully adsorbs iron filings.

2. A novel rice processing magnetic separator as claimed in claim 1, wherein, The dispersing mechanism (3) includes a rotating tube (301) inside the magnetic separator (1). Multiple dispersing plates (300) are provided on the outer wall of the rotating tube (301). A fixed frame (302) is provided on the top of the magnetic separator (1). One end of the rotating tube (301) passes through the top of the magnetic separator (1) and the top of the fixed frame (302) and is connected to a rotary joint (304) provided on the outside. One end of the rotary joint (304) is provided with an air inlet pipe (303). A fixed plate (306) is sleeved on the outer wall of the air inlet pipe (303). One end of the fixed plate (306) is connected to the top of the fixed frame (302). A driven bevel gear (305) is sleeved on the outer wall of the rotating tube (301). A motor (307) is provided on the side wall of the fixed plate (306). An active bevel gear (308) that meshes with the driven bevel gear (305) is connected to the output end of the motor (307).

3. A novel rice processing magnetic separator as claimed in claim 2, wherein, The dispersion plate (300) is arranged in an arc shape, and the inner sidewall of the dispersion plate (300) is provided with multiple sets of dispersion strips (310), which are arranged in a spiral on the inner wall of the dispersion plate (300).

4. A novel rice processing magnetic separator as claimed in claim 2, wherein, The rotating pipe (301) is connected to the air intake pipe (303) through a rotary joint (304). One end of the air intake pipe (303) is connected to an external air pump. Multiple sets of jet holes (309) are opened on the outer wall of the rotating pipe (301). The jet holes (309) are inclined upward.

5. A novel rice processing magnetic separator as claimed in claim 2, wherein, The magnetic separator (1) has a through hole at the top, and a bearing is fitted on the outer wall of the rotating tube (301), with the bearing cooperating with the inner wall of the through hole.

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