Iron removal device for food-grade calcium carbonate production

Abstract

The utility model provides an iron removal device for food-grade calcium carbonate production, and relates to the technical field of iron removal devices.The iron removal device for food-grade calcium carbonate production comprises a first shell; and the number of the rotary iron removers is two, each rotary iron remover comprises a base, a first magnetic bar and a first transfer piece, the first magnetic bars are arranged on the bases, and the first transfer pieces are connected with the bases and used for driving the bases to move relative to the first shell. Iron impurities in materials are adsorbed and removed through the first magnetic bars, when the adsorbed iron impurities are accumulated to a certain amount and need to be cleaned, the base is driven by the first transfer piece to move relative to the first shell, and the first magnetic bars of one set of rotary iron removers are moved out of the first shell; and meanwhile, the first magnetic bar of the other group of rotary de-ironing separator is synchronously moved into the first shell through the first transfer piece of the other group of rotary de-ironing separator, so that seamless connection of the de-ironing function is ensured, feeding does not need to be stopped, and temporary interruption of production is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of iron removal devices, in particular to an iron removal device for food-grade calcium carbonate production. BACKGROUND

[0002] Food-grade calcium carbonate is a kind of calcium carbonate that can be used in the food industry. Food-grade calcium carbonate is made from natural calcium carbonate ores such as calcite and marble as raw materials, using ore screening, crushing, grinding, digestion, carbonization, impurity removal, drying, grading and packaging processes. Since the main raw material of food-grade calcium carbonate is natural ore, such as calcite and marble, these ores will inevitably come into contact and mix with iron-containing minerals in the surrounding environment during production. In addition, the production equipment such as the grinding machine may be worn out during long-term use, resulting in the mixing of metal iron filings into the product. Therefore, iron removal is required during production.

[0003] Rotary iron removers are commonly used in food-grade calcium carbonate production. A rotary iron remover is composed of a housing, a rotating disc, magnetic rods, and a drive motor. For example, the utility model patent with publication number CN202823603U discloses a calcium carbonate double-layer iron remover. The calcium carbonate double-layer iron remover includes rotating wheel one, rotating wheel two, magnetic rods, a rotating shaft, and a calcium carbonate powder inlet and outlet. Rotating wheel one and rotating wheel two are coaxial cylinders with different diameters, and the center is provided with a rotating shaft connected with a transmission mechanism. A plurality of magnetic rods are arranged on rotating wheel one and rotating wheel two, respectively. The calcium carbonate powder inlet and outlet are arranged on the outer side of rotating wheel one. The calcium carbonate powder enters the iron remover through the inlet and outlet, and the rotating shaft is rotated to make the rotating wheel rotate. The iron powder in the calcium carbonate powder is removed by the permanent magnet.

[0004] When the iron remover is in use, the iron powder adsorbed on the magnetic rods needs to be removed when it accumulates to a certain amount to ensure that the magnetic rods have sufficient adsorption force for the iron powder and prevent the adsorbed iron powder from falling off and mixing into the material due to vibration, collision, etc., causing secondary pollution of the material. However, when the above-mentioned calcium carbonate double-layer iron remover removes the iron powder on the magnetic rods, the magnetic rods need to be removed from the inside of the iron remover, at which time the iron powder adsorption function is suspended. If the material continues to be fed, the iron impurities in the material cannot be removed by the magnetic rods. Therefore, when removing the iron powder on the magnetic rods, feeding into the iron remover needs to be stopped, which will cause temporary interruption of production, affecting production efficiency and causing a decrease in production. UTILITY MODEL CONTENT

[0005] The purpose of the present application is to provide an iron removal device for food-grade calcium carbonate production, which solves the problem of stopping feeding into the iron remover when removing the iron powder on the magnetic rods in the related art, which will cause temporary interruption of production, affecting production efficiency and causing a decrease in production.

[0006] The application provides a food-grade calcium carbonate production iron removal device which adopts the following technical scheme:

[0007] A food-grade calcium carbonate production iron removal device, comprising:

[0008] A first shell;

[0009] Two groups of rotary iron removers are arranged, each of the rotary iron removers comprises a base, a first magnetic rod arranged on the base, and a first transfer member connected with the base and used to drive the base to move relative to the first shell, so as to drive the first magnetic rod to enter or move out of the first shell.

[0010] Optionally, the rotary iron remover further comprises a rotating table, the rotating table is rotatably arranged on the base, the base is provided with a rotating driving member used to drive the rotating table to rotate, and the first magnetic rod is arranged on the rotating table.

[0011] Optionally, the rotary iron remover further comprises a first push-pull member, the rotating table is provided with a first isolation cylinder capable of being sleeved on the outer side of the first magnetic rod, and the first push-pull member is used to drive the first magnetic rod to be pulled out of the first isolation cylinder or to be inserted into the first isolation cylinder.

[0012] Optionally, the opposite two side walls of the first shell are respectively provided with through grooves, the rotating table is provided with a first sealing plate corresponding in shape to the through grooves, and the first isolation cylinder is provided with a second sealing plate corresponding in shape to the through grooves at the end away from the rotating table, and the first sealing plate and the second sealing plate can be sealed at the through grooves of the two side walls of the first shell.

[0013] Optionally, the device further comprises a second shell, a frame and a second transfer member, the second shell is arranged below the first shell in communication, the frame is provided with two groups of grid iron removers, the grid iron remover comprises a second magnetic rod arranged on the frame, and the second transfer member is used to drive the frame to move relative to the second shell, so as to drive the second magnetic rod to enter or move out of the second shell.

[0014] Optionally, the grid iron remover further comprises a second push-pull member, the frame is provided with a second isolation cylinder capable of being sleeved on the outer side of the second magnetic rod, and the second push-pull member is used to drive the second magnetic rod to be pulled out of the second isolation cylinder or to be inserted into the second isolation cylinder.

[0015] Optionally, the grid separator further includes a scraper and a scraper drive component. The scraper is slidably sleeved on the outside of the second isolation cylinder, and the scraper drive component is used to drive the scraper to move axially along the second isolation cylinder.

[0016] Optionally, the frame is provided with a partition for separating the two sets of second magnetic bars of the grid separator.

[0017] In summary, this application includes at least the following beneficial technical effects: When removing iron from food-grade calcium carbonate materials, the iron removal device of this application uses a first magnetic rod to adsorb and remove iron impurities in the material. When the adsorbed iron impurities accumulate to a certain amount and need to be cleaned, the base is driven to move relative to the first housing by a first transfer member, moving the first magnetic rod of one set of rotating iron separators out of the first housing. At the same time, the first transfer member of another set of rotating iron separators moves the first magnetic rod of the other set of rotating iron separators into the first housing synchronously, thereby ensuring seamless connection of the iron removal function and continuous adsorption of iron impurities in the material without stopping the feeding, avoiding temporary production interruption, and effectively improving production efficiency and the yield of food-grade calcium carbonate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the iron removal device for the production of food-grade calcium carbonate in this application embodiment;

[0019] Figure 2 This is a first-view cross-sectional view of the iron removal device for food-grade calcium carbonate production in an embodiment of this application.

[0020] Figure 3 This is a cross-sectional view from a second perspective of the iron removal device for the production of food-grade calcium carbonate in an embodiment of this application.

[0021] Figure 4 for Figure 2 A magnified view of part B in the middle section;

[0022] Figure 5 for Figure 1 A magnified view of part A in the middle;

[0023] Figure 6 for Figure 2 A magnified view of part C in the middle;

[0024] Figure 7 for Figure 3 A magnified view of part D in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. First frame; 11. Guide rod; 20. First housing; 21. First feed inlet; 22. First discharge outlet; 23. Through groove;

[0027] 30, rotary iron remover; 31, base; 311, sliding sleeve; 312, support; 32, first magnetic bar; 33, transfer cylinder; 331, transfer piston rod; 34, rotary table; 341, gear ring; 342, first isolation cylinder; 343, push-pull guide column; 344, first sealing plate; 345, second sealing plate; 35, rotary motor; 351, gear; 36, bearing; 37, first push-pull cylinder; 371, first piston rod; 372, limiting boss; 38, first push-pull plate; 381, axial limiting frame; 382, sliding cylinder;

[0028] 40, second housing; 41, avoiding groove; 42, second feeding port; 43, second discharging port; 44, second rack; 50, frame; 51, second isolation cylinder; 52, guide sleeve; 53, partition plate; 54, sliding seat; 541, sleeve;

[0029] 60, grid iron remover; 61, second magnetic bar; 62, second push-pull cylinder; 621, second piston rod; 63, second push-pull plate; 631, transverse guide column; 64, scraper; 65, scraping and pushing cylinder; 651, scraping and pushing piston rod; 70, support; 71, longitudinal guide column; 80, longitudinal movement cylinder; 81, longitudinal movement piston rod. DETAILED DESCRIPTION

[0030] The following will be described in detail with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 7 , the present application will be further described in detail.

[0031] Example 1

[0032] The embodiment discloses an iron removing device for food-grade calcium carbonate production.

[0033] Reference Figures 1 to 4 An iron removing device for food-grade calcium carbonate production, comprising a first rack 10, a first housing 20 and a rotary iron remover 30, the first housing 20 is fixedly arranged on the first rack 10, the top and bottom of the first housing 20 are respectively provided with a first feeding port 21 and a first discharging port 22, and the opposite two side walls of the first housing 20 are respectively provided with through grooves 23.

[0034] The rotary iron remover 30 is provided with two groups, and the rotary iron remover 30 comprises a base 31, a first magnetic bar 32, a rotary table 34, a first push-pull piece, a first push-pull plate 38 and a first transfer piece.

[0035] The first magnetic rod 32 is arranged on the base 31. In an optional embodiment, the first magnetic rod 32 is connected to the base 31 in the following specific manner: the rotary table 34 is arranged on the base 31 in a rotatable manner through a bearing 36, and the rotary table 34 is provided with a first isolation cylinder 342 which can be sleeved outside the first magnetic rod 32. The rotary table 34 is provided with a first sealing plate 344 which has a shape corresponding to the through groove 23, and the first isolation cylinder 342 is fixedly arranged on the first sealing plate 344. The first isolation cylinder 342 is provided with a second sealing plate 345 at an end away from the rotary table 34, and the second sealing plate 345 has a shape corresponding to the through groove 23. The first sealing plate 344 and the second sealing plate 345 can be sealed at the through groove 23 of the two side walls of the first shell 20. The first magnetic rod 32 is arranged on the rotary table 34, and more specifically, the rotary table 34 is provided with a push-pull guide column 343 on the first sealing plate 344. The first push-pull plate 38 is provided with a sliding cylinder 382, and the first push-pull plate 38 is arranged on the push-pull guide column 343 in a sliding manner through the sliding cylinder 382. The first magnetic rod 32 is provided with a plurality of first magnetic rods 32 which are arranged in a circumferential direction and are fixedly connected to the first push-pull plate 38.

[0036] The base 31 is provided with a rotary driving member for driving the rotary table 34 to rotate. The rotary driving member includes a rotary motor 35 which is fixedly arranged on the base 31. The rotary motor 35 is provided with a gear 351 on an output shaft thereof. The rotary table 34 is provided with a gear ring 341 which is engaged with the gear 351.

[0037] Referring to Figure 1 , Figure 2 and Figure 4 , the first push-pull member is used for driving the first magnetic rod 32 to be pulled out of the first isolation cylinder 342 or driving the first magnetic rod 32 to be inserted into the first isolation cylinder 342. More specifically, the first push-pull member can adopt a first push-pull cylinder 37 which is fixedly arranged on the base 31 through a support 312. A first piston rod 371 of the first push-pull cylinder 37 is rotatably connected to the first push-pull plate 38 in the following manner: the first push-pull plate 38 is provided with an axial limiting frame 381, the first piston rod 371 is rotatably arranged in the axial limiting frame 381, and an end of the first piston rod 371 is provided with a limiting boss 372 which limits the first piston rod 371 from being separated from the axial limiting frame 381.

[0038] The first transfer member is connected to the base 31. More specifically, the first transfer member can adopt a transfer cylinder 33 which is fixedly arranged on the first rack 10. A transfer piston rod 331 of the transfer cylinder 33 is fixedly connected to the base 31. The first transfer member is used for driving the base 31 to move relative to the first shell 20, so as to drive the first magnetic rod 32 and the first isolation cylinder 342 to enter or move out of the first shell 20.

[0039] The implementation principle of the iron removal device for food-grade calcium carbonate production in this embodiment is as follows: when the food-grade calcium carbonate material is subjected to iron removal, the first magnetic rod 32 and the first isolation cylinder 342 of one set of the rotating iron removal device 30 are located in the first shell 20, and the first sealing plate 344 and the second sealing plate 345 are respectively sealed at the through slot 23 of the two side walls of the first shell 20. The material is poured into the first shell 20 from the first feeding port 21, the rotating motor 35 drives the rotating table 34 to rotate, thereby driving the first magnetic rod 32 and the first isolation cylinder 342 to rotate, the material in the first shell 20 is dispersed, and the iron impurities in the material are adsorbed on the outer wall of the first isolation cylinder 342, and then the material is discharged from the first shell 20 through the first discharging port 22.

[0040] When the iron impurities accumulated on the outer wall of the first isolation cylinder 342 reach a certain amount and need to be cleaned, the first transfer base 31 is moved relative to the first shell 20 by the first transfer member, the first magnetic rod 32 and the first isolation cylinder 342 of one set of the rotating iron removal device 30 are moved out of the first shell 20, and the first magnetic rod 32 and the first isolation cylinder 342 of another set of the rotating iron removal device 30 are simultaneously moved into the first shell 20 by the first transfer member of the other set of the rotating iron removal device 30, thereby ensuring seamless connection of the iron removal function, continuously adsorbing the iron impurities in the material, and avoiding temporary interruption of production, thereby effectively improving production efficiency and food-grade calcium carbonate yield.

[0041] After the first magnetic rod 32 and the first isolation cylinder 342 are moved out of the first shell 20, the first magnetic rod 32 is extracted from the first isolation cylinder 342 by driving the first push-pull plate 38 to move by the first push-pull cylinder 37, and the iron impurities on the outer wall of the first isolation cylinder 342 lose the magnetic adsorption effect and fall off from the first isolation cylinder 342 to achieve cleaning. Then, the rotating motor 35 drives the rotating table 34 to rotate and drives the first isolation cylinder 342 to rotate, and the residual iron impurities on the first isolation cylinder 342 are shaken off.

[0042] Embodiment 2

[0043] The iron removal device for food-grade calcium carbonate production in this embodiment is disclosed.

[0044] Referring to Figure 2 、 Figure 3 、 Figures 5 to 7 The iron removal device for food-grade calcium carbonate production in this embodiment is different from that in Embodiment 1 in that it further comprises a second shell 40, a frame 50, and a second transfer member. The second shell 40 is connected and communicated below the first shell 20, and more specifically, the second shell 40 is provided with a second feeding port 42 and a second discharging port 43. The second shell 40 is connected and communicated with the first discharging port 22 of the first shell 20 through the second feeding port 42.

[0045] The frame 50 is provided with two groups of grid-type magnetic separators 60. The grid-type magnetic separator 60 comprises a second magnetic bar 61, a second push-pull piece, a second push-pull plate 63, a scraping plate 64 and a scraping and pushing driving piece, and the frame 50 is provided with a guide sleeve 52. The second push-pull plate 63 is provided with a transverse guide column 631 which is slidably arranged in the guide sleeve 52. The second magnetic bar 61 is provided with a plurality of second magnetic bars 61 which are arrayed and fixed to the second push-pull plate 63. The frame 50 is provided with a partition plate 53 for separating the second magnetic bars 61 of the two groups of grid-type magnetic separators 60.

[0046] The frame 50 is provided with a second isolation cylinder 51 which can be sleeved outside the second magnetic bar 61. The second push-pull piece is used to drive the second magnetic bar 61 to be drawn out of the second isolation cylinder 51 or to drive the second magnetic bar 61 to be inserted into the second isolation cylinder 51. More specifically, the second push-pull piece can be a second push-pull cylinder 62 which is fixed to the frame 50. The second piston rod 621 of the second push-pull cylinder 62 is fixed to the second push-pull plate 63.

[0047] The scraping plate 64 is slidably sleeved outside the second isolation cylinder 51. The scraping and pushing driving piece is fixed to the frame 50 and is used to drive the scraping plate 64 to move along the axial direction of the second isolation cylinder 51. More specifically, the scraping and pushing driving piece can be a scraping and pushing cylinder 65. The scraping and pushing piston rod 651 of the scraping and pushing cylinder 65 is fixed to the scraping plate 64.

[0048] The second transfer piece is used to drive the frame 50 to move relative to the second shell 40 so as to drive the second magnetic bar 61 to enter or move out of the second shell 40. The second shell 40 is provided with an avoiding groove 41 for avoiding the frame 50. Due to the arrangement of the avoiding groove 41, the second shell 40 is divided into an upper part and a lower part which are separated from each other. The upper part of the second shell 40 is fixed to the first shell 20, and the lower part of the second shell 40 is supported by the second machine frame 44.

[0049] In an optional embodiment, the specific structure of the second transfer piece and the specific connection relationship with the frame 50 are as follows: the second transfer piece comprises a support 70 and a longitudinal moving cylinder 80. The support 70 is provided with a longitudinal guide column 71. The frame 50 is fixedly provided with a sliding seat 54. The sliding seat 54 is fixedly provided with a sleeve 541 which is slidably arranged on the longitudinal guide column 71. The longitudinal moving cylinder 80 is fixedly arranged on the support 70. The longitudinal moving piston rod 81 of the longitudinal moving cylinder 80 is fixedly connected to the sliding seat 54.

[0050] The implementation principle of the iron removal device for food-grade calcium carbonate production in the embodiment is as follows: after the food-grade calcium carbonate material is scattered and iron is removed in the first shell 20, the material is discharged from the first shell 20 through the first discharge port 22 and enters the second shell 40 through the second feeding port 42 to be iron-removed again, at this time, the second magnetic rod 61 and the second isolation cylinder 51 of one set of grid iron removers 60 are located in the second shell 40. When the material falls in the second shell 40, the iron impurities in the material are adsorbed on the outer wall of the second isolation cylinder 51, and then the material is discharged from the second shell 40 through the second discharge port 43.

[0051] When the iron impurities accumulated on the outer wall of the second isolation cylinder 51 reach a certain amount and need to be cleaned, the frame 50 is moved relative to the second shell 40 by the vertical moving cylinder 80, the second magnetic rod 61 and the second isolation cylinder 51 of one set of grid iron removers 60 are moved out of the second shell 40, and the second magnetic rod 61 and the second isolation cylinder 51 of the other set of grid iron removers 60 are moved into the second shell 40, so as to ensure seamless connection of the iron removal function, continuously adsorb the iron impurities in the material, and avoid temporary interruption of production without stopping feeding.

[0052] When the second magnetic rod 61 and the second isolation cylinder 51 of one set of grid iron removers 60 are moved out of the second shell 40, the second push-pull plate 63 is moved by the second push-pull cylinder 62, the second magnetic rod 61 is pulled out of the second isolation cylinder 51 by the second push-pull plate 63, the iron impurities on the outer wall of the second isolation cylinder 51 lose the magnetic adsorption effect and fall off from the second isolation cylinder 51 to realize cleaning. Then the scraper 64 is moved by the scraping cylinder 65, and the residual iron impurities on the second isolation cylinder 51 are scraped off by the scraper 64.

[0053] The embodiments of the specific embodiment are the preferred embodiments of the application, and are not limited to the protection scope of the application, wherein the same parts are indicated by the same reference numerals. Therefore: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A food-grade calcium carbonate production iron removal device, characterized in that, The utility model relates to a kind of rotary de-ironing device, including: First shell (20); Rotary de-ironing device (30), the rotary de-ironing device (30) is equipped with two groups, the rotary de-ironing device (30) includes pedestal (31) respectively, first magnetic bar (32) and first transfer piece, the first magnetic bar (32) is equipped on the pedestal (31), the first transfer piece is connected with the pedestal (31), and it is used to drive the pedestal (31) relative to the first shell (20) moves, to drive the first magnetic bar (32) into the first shell (20) or from the first shell (20) moves out.

2. The iron removal device for food-grade calcium carbonate production according to claim 1, characterized in that, The rotary de-ironing device (30) further includes rotating platform (34), the rotating platform (34) is rotationally arranged on the pedestal (31), and the pedestal (31) is provided with rotary drive for driving the rotating platform (34) to rotate, and the first magnetic bar (32) is arranged on the rotating platform (34).

3. The iron removal device for food-grade calcium carbonate production according to claim 2, characterized in that, The rotary de-ironing device (30) further includes first push-pull piece, the rotating platform (34) is provided with first isolation cylinder (342) capable of being sleeved on the outer side of the first magnetic bar (32), and the first push-pull piece is used to drive the first magnetic bar (32) to be extracted from the first isolation cylinder (342) or drive the first magnetic bar (32) to be inserted into the first isolation cylinder (342).

4. The iron removal device for food-grade calcium carbonate production according to claim 3, characterized in that, The first shell (20) is provided with through slot (23) on the opposite two side walls respectively, the rotating platform (34) is provided with first sealing plate (344) corresponding to the shape of the through slot (23), and the first isolation cylinder (342) is provided with second sealing plate (345) corresponding to the shape of the through slot (23) at the end away from the rotating platform (34), and the first sealing plate (344) and the second sealing plate (345) can be blocked at the through slot (23) of the two side walls of the first shell (20).

5. The iron removal device for food-grade calcium carbonate production according to claim 1, characterized in that, Further including second shell (40), frame (50) and second transfer piece, the second shell (40) is communicated and arranged below the first shell (20), the frame (50) is provided with two groups of grid de-ironing device (60), the grid de-ironing device (60) includes second magnetic bar (61) arranged on the frame (50), and the second transfer piece is used to drive the frame (50) relative to the second shell (40) moves, to drive the second magnetic bar (61) into the second shell (40) or from the second shell (40) moves out.

6. The iron removal device for food-grade calcium carbonate production according to claim 5, characterized in that, The grid de-ironing device (60) further includes second push-pull piece, the frame (50) is provided with second isolation cylinder (51) capable of being sleeved on the outer side of the second magnetic bar (61), and the second push-pull piece is used to drive the second magnetic bar (61) to be extracted from the second isolation cylinder (51) or drive the second magnetic bar (61) to be inserted into the second isolation cylinder (51).

7. The iron removal device for food-grade calcium carbonate production according to claim 6, characterized in that, The grid de-ironing device (60) further includes scraper (64) and scraping push driving piece, the scraper (64) is slidably sleeved on the outer side of the second isolation cylinder (51), and the scraping push driving piece is used to drive the scraper (64) to move along the axial direction of the second isolation cylinder (51).

8. The iron removal device for food-grade calcium carbonate production according to claim 5, characterized in that, The frame (50) is provided with a partition plate (53) for separating the second magnetic bars (61) of the two groups of grid-type magnetic separators (60).

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