Impurity removal device for preparing food-grade magnesium oxide

Abstract

The utility model discloses an impurity removal device for preparing food-grade magnesium oxide, which comprises a horizontally arranged feeding conveying line, an iron removal conveying line is arranged right above the feeding conveying line in parallel, and a magnetic suction plate is arranged on the inner side of an iron removal belt on the lower side of the iron removal conveying line; a material groove is obliquely formed in the lower side of the outlet end of the feeding conveying line and comprises baffles on the two sides and a filter plate arranged at the bottom, one side of the material groove is hinged to a conveying line support at the lower end of the material groove through a hinge shaft, a vibration driving device is arranged on the side, opposite to the hinge shaft, of the material groove, and the vibration driving device drives the material groove to swing around the hinge shaft. The filter screen can be prevented from being blocked, impurities and high-purity magnesium oxide can be discharged in time, the working efficiency is improved, and the device can adapt to an automatic production line; meanwhile, iron impurities mixed in magnesium oxide can be removed.

Description

Technical Field

[0001] This utility model relates to a purification device for preparing food-grade magnesium oxide, belonging to the field of magnesium oxide purification technology. Background Technology

[0002] Magnesium oxide is an inorganic substance, an oxide of magnesium, and an ionic compound. It is a white solid at room temperature. Magnesium oxide exists in nature in the form of periclase and is a raw material for magnesium smelting. Magnesium oxide has high refractory and insulating properties. In some magnesium oxide production processes, sieving devices are used to screen and remove impurities.

[0003] Utility model patent CN218078921U discloses a sieving device for removing impurities in magnesium oxide production. The device utilizes a waste collection component to facilitate centralized collection and cleaning of impurities, and a material scraping component and vibrator to disperse accumulated materials, thus improving the impurity removal efficiency of magnesium oxide. However, this patent has the following drawbacks in practical use: First, impurities are difficult to remove, and more importantly, the magnesium oxide after impurity removal cannot be discharged in a timely manner, affecting work efficiency and making it unsuitable for automated production; second, the impurity removal requirements for food-grade magnesium oxide are high, and the fine iron impurities mixed in with magnesium oxide cannot be removed.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] This invention addresses the shortcomings of the prior art by providing a purification device for preparing food-grade magnesium oxide. It can prevent filter clogging, promptly discharge impurities and high-purity magnesium oxide separately, improve work efficiency, and adapt to automated production lines. At the same time, it can remove iron impurities mixed in magnesium oxide.

[0006] To solve the above technical problems, the present invention adopts the following technical solution:

[0007] A device for removing impurities in the preparation of food-grade magnesium oxide includes a horizontally arranged feeding conveyor line, an iron removal conveyor line arranged parallel above the feeding conveyor line, and a magnetic suction plate arranged on the inner side of the iron removal belt below the iron removal conveyor line.

[0008] A trough is inclined at the lower side of the outlet end of the feeding conveyor line. The trough includes baffles on both sides and a filter plate at the bottom. One side of the trough is hinged to the conveyor line support at its lower end by a hinge shaft. A vibration drive device is provided on the side of the trough opposite to the hinge shaft. The vibration drive device drives the trough to swing around the hinge shaft.

[0009] Furthermore, the iron removal conveyor line includes drive rollers at both ends, with iron removal belts wound around the two drive rollers; the feeding conveyor line includes belt rollers at both ends, with conveyor belts wound around the two belt rollers.

[0010] Furthermore, the outer end of the iron removal conveyor extends beyond the feed end of the feeding conveyor, and the magnetic suction plate is a certain distance away from the transmission roller at the outer end of the iron removal conveyor, with the outer end of the magnetic suction plate flush with the feed end of the feeding conveyor.

[0011] Furthermore, an iron impurity container is provided on the lower side of the outer end of the iron conveyor line.

[0012] Furthermore, the vibration drive device includes a rotating shaft with the same tilt angle as the material trough. A cam is fixed at each end of the rotating shaft, and an extension plate is provided at each end of the material trough corresponding to the cam. The lower surface of the extension plate cooperates with the cam.

[0013] Furthermore, the lower surface of the extension plate is provided with a plurality of cylindrical rollers, and the extension plate engages with the cam via the cylindrical rollers.

[0014] Furthermore, the rotating shaft is rotatably mounted on the mounting base, which is fixedly mounted on the conveyor line support.

[0015] Furthermore, a tension spring is provided between the extension plate and the conveyor support to keep the extension plate close to the cam surface.

[0016] Furthermore, a discharge conveyor line is provided parallel to the bottom of the trough. The discharge conveyor line is fixed on the conveyor line support. The conveyor line support is also equipped with a drive motor, which drives the cam to rotate.

[0017] Furthermore, the upper output end of the discharge conveyor line is equipped with a finished product container, and the lower output end of the trough is equipped with an impurity container.

[0018] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0019] Iron impurities mixed in magnesium oxide are removed by the iron removal conveyor line, ensuring the accuracy of impurity removal. In addition, the material tank is filtered and removed during the shaking process. This can prevent the filter screen from clogging and can discharge impurities and high-purity magnesium oxide separately in a timely manner, improving work efficiency and adapting to automated production lines.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the material trough driven by the vibration drive device.

[0023] In the picture,

[0024] 1-Iron removal conveyor line, 2-Magnetic suction plate, 3-Drive roller, 4-Feed conveyor line, 5-Belt roller, 6-Iron impurity container, 7-Material trough, 701-Hinged shaft, 8-Filter plate, 9-Extension plate, 10-Cylindrical roller, 11-Cam, 12-Rotating shaft, 13-Tension spring, 14-Discharge conveyor line, 15-Mounting base, 16-Conveyor line bracket, 17-Drive motor, 18-Finished material container, 19-Impurity container. Detailed Implementation

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0026] like Figure 1-2 As shown, this utility model provides a purification device for preparing food-grade magnesium oxide, including a horizontally arranged feeding conveyor line 4, an iron removal conveyor line 1 arranged parallel above the feeding conveyor line 4, and a magnetic suction plate 2 arranged on the inner side of the iron removal belt below the iron removal conveyor line 1.

[0027] A feed trough 7 is inclinedly provided on the lower side of the outlet end of the feed conveyor line 4. The feed trough 7 includes baffles on both sides and a filter plate 8 set at the bottom. Figure 2 One side of the material trough 7 is hinged to the conveyor support 16 at its lower end via a hinge shaft 701. A vibration drive device is provided on the side of the material trough 7 opposite to the hinge shaft 701. The vibration drive device drives the material trough 7 to swing around the hinge shaft 701.

[0028] A feeding device (not shown in the figure) is provided on one side of the feeding conveyor line 4. Magnesium oxide with impurity removal is fed onto the feeding conveyor line 4 from the feeding device. The iron removal conveyor line 1 located directly above it sucks out and removes iron impurities from the magnesium oxide on the feeding conveyor line 4. The iron-removed magnesium oxide is then fed from the outlet end of the feeding conveyor line 4 to the upper side of the trough 7. Under the oscillation action of the trough 7, the magnesium oxide slides downward while shaking. During the sliding process, impurities roll downward in the trough 7, and high-purity magnesium oxide is discharged from the trough 7. In the entire filtration process, iron impurities mixed in with magnesium oxide can be removed by the iron removal conveyor line 1, ensuring the accuracy of impurity removal. In addition, the filtration and impurity removal in the trough 7 during the shaking process can prevent the filter screen from clogging and can promptly discharge impurities and high-purity magnesium oxide separately, improving work efficiency and adapting to automated production lines.

[0029] The iron removal conveyor line 1 includes drive rollers 3 at both ends, with iron removal belts wound around the two drive rollers 3; the feeding conveyor line 4 includes belt rollers 5 at both ends, with conveyor belts wound around the two belt rollers 5.

[0030] The outer end of the iron removal conveyor 1 extends beyond the feed end of the feeding conveyor 4, and the magnetic suction plate 2 is positioned at a certain distance from the outer end of the transmission roller 3 of the iron removal conveyor 1. The outer end of the magnetic suction plate 2 is flush with the feed end of the feeding conveyor 4. Iron impurities in magnesium oxide are adsorbed onto the iron removal belt and rotate synchronously with it. When the iron impurities are conveyed to the outer position of the magnetic suction plate 2, they fall off.

[0031] An iron impurity container 6 is provided on the lower side of the outer end of the iron removal conveyor line 1, and iron impurities falling from the outer end of the iron removal conveyor line 1 are collected in the iron impurity container 6.

[0032] The vibration drive device includes a rotating shaft 12, the tilt angle of which is the same as that of the material trough 7. A cam 11 is fixed at each end of the rotating shaft 12. An extension plate 9 is provided at each end of the material trough 7 corresponding to the cam 11. The lower surface of the extension plate 9 cooperates with the cam 11.

[0033] Preferably, the lower surface of the extension plate 9 is provided with a plurality of cylindrical rollers 10, and the extension plate 9 engages with the cam 11 through the cylindrical rollers 10. When the cam 11 rotates, the cam 11 engages with the cylindrical rollers 10, thereby causing the material trough 7 to sway up and down.

[0034] The rotating shaft 12 is rotatably mounted on the mounting base 15, and the mounting base 15 is fixedly mounted on the conveyor support 16.

[0035] A tension spring 13 is provided between the extension plate 9 and the conveyor support 16, so that the extension plate 9 is pressed against the surface of the cam 11.

[0036] Furthermore, a discharge conveyor line 14 is provided parallel to the bottom of the material trough 7. The discharge conveyor line 14 is fixed on the conveyor line bracket 16. A drive motor 17 is also provided on the conveyor line bracket 16. The drive motor 17 drives the cam 11 to rotate.

[0037] The upper output end of the discharge conveyor line 14 is equipped with a finished product container 18, and the lower output end of the material trough 7 is equipped with an impurity container 19. Impurities discharged from the lower end of the material trough 7 fall into the impurity container 19 for automatic collection, while high-purity magnesium oxide discharged from the bottom of the material trough 7 is discharged through the discharge conveyor line 14 to the finished product container 18 for automatic collection. This achieves the separate discharge of impurities and high-purity magnesium oxide, improves work efficiency, and can adapt to automated production lines.

[0038] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A device for removing impurities from food grade magnesium oxide, characterized by: The horizontal feeding conveying line (4) is provided above a de-ironing conveying line (1), and a magnetic plate (2) is arranged on the inner side of the de-ironing belt of the de-ironing conveying line (1). The lower side of the outlet end of the feeding conveying line (4) is provided with a chute (7) which comprises a baffle on both sides and a filter plate (8) arranged at the bottom.

2. The apparatus for removing impurities from food grade magnesium oxide according to claim 1, wherein: The de-ironing conveying line (1) comprises driving rollers (3) arranged at both ends, and the de-ironing belt is wound around the driving rollers (3).

3. A device for removing impurities from food grade magnesium oxide as claimed in claim 2, wherein: The feeding conveying line (4) comprises belt rollers (5) arranged at both ends, and the conveying belt is wound around the belt rollers (5).

4. The apparatus for removing impurities from food grade magnesium oxide according to claim 3, wherein: The outer end of the de-ironing conveying line (1) extends beyond the feeding end of the feeding conveying line (4), and the magnetic plate (2) is arranged at a certain distance from the driving roller (3) at the outer end of the de-ironing conveying line (1).

5. The apparatus for removing impurities from food grade magnesium oxide according to claim 1, wherein: The outer end of the de-ironing conveying line (1) is provided with an iron impurity container (6).

6. A device for removing impurities from food grade magnesium oxide as claimed in claim 5, wherein: The vibration driving device comprises a rotating shaft (12) arranged in rotation, the inclination angle of the rotating shaft (12) is the same as the inclination angle of the chute (7), and one cam (11) is fixedly arranged at each end of the rotating shaft (12).

7. A device for removing impurities from food grade magnesium oxide as claimed in claim 6, wherein: The lower surface of the extension plate (9) is arranged with a plurality of cylindrical rollers (10), and the extension plate (9) is matched with the cam (11) through the cylindrical rollers (10).

8. A device for removing impurities from food grade magnesium oxide as claimed in claim 7, wherein: The rotating shaft (12) is rotatably installed on the mounting seat (15), and the mounting seat (15) is fixedly arranged on the conveying line support (16).

9. A device for removing impurities from food grade magnesium oxide as claimed in claim 8, wherein: The extension plate (9) is arranged between the conveying line support (16) and the extension plate (9), and the extension plate (9) is arranged close to the surface of the cam (11).

10. A device for removing impurities from food grade magnesium oxide as claimed in claim 9, wherein: The bottom of the chute (7) is provided with a discharge conveying line (14) in parallel, the discharge conveying line (14) is fixed on the conveying line support (16), and the conveying line support (16) is further provided with a driving motor (17). The output end of the upper end of the discharge conveying line (14) is provided with a finished material container (18), and the output end of the lower end of the chute (7) is provided with an impurity container (19).

Images