Iron removal device for ground calcium carbonate powder

Abstract

The utility model discloses an iron removal device for heavy calcium carbonate powder, which comprises a conveying box, a first cover body and a second cover body are respectively arranged on the front side and the rear side of the conveying box, and a feed hopper is arranged at the top of the conveying box. Rotatable transmission rollers are installed in an inner cavity of the conveying box, and a conveying belt is in transmission connection between the transmission rollers. A discharging hopper is arranged at the bottom of the conveying box. According to the iron removal device for the heavy calcium carbonate powder, the iron removal assembly is arranged above the conveying belt, scrap iron is separated from the calcium carbonate powder after being adsorbed by the iron removal assembly, the conveying belt can operate normally, therefore, the operation load is reduced, meanwhile, the calcium carbonate powder can be freely discharged after being separated from the scrap iron, and the iron removal efficiency is improved. And furthermore, the adsorbed scrap iron can be cleaned out through a driving mechanism, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of iron removal equipment, in particular to an iron removal device for heavy calcium carbonate powder. Background Art

[0002] When heavy calcium carbonate is produced and crushed, a small amount of magnetic impurities are likely to be mixed in, so iron removal equipment is needed to perform iron removal operations on the powder material.

[0003] For example, an iron removal device for heavy calcium carbonate powder disclosed in the Chinese authorized patent CN219334549 U evenly conveys the heavy calcium carbonate powder to the conveyor belt of the conveying magnetic attraction mechanism through the accommodating grooves on the feeding roller. At the same time, when the feeding roller rotates, it drives the material turning assembly to turn the heavy calcium carbonate powder on the conveyor belt, thereby enhancing the iron removal effect on the heavy calcium carbonate powder.

[0004] However, there is a problem with the above device. It adsorbs iron filings through a rotating driven magnetic roller and separates the iron filings from the magnetic roller by relying on the conveying resistance of the conveyor belt. First of all, the magnetic roller and the conveyor belt are in a relative motion relationship. Once the magnetic roller adsorbs iron filings, the generated suction force will block the movement of the conveyor belt, which will obviously increase the load of the system. Secondly, a large amount of iron filings are concentrated near the magnetic roller, and the aggregated iron filings will inevitably entrain some calcium carbonate powder, and this part of the powder will eventually be lost with the iron filings, resulting in waste. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides an iron removal device for heavy calcium carbonate powder, which solves the problem of low efficiency of the existing iron removal device for calcium carbonate powder.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solutions: An iron removal device for heavy calcium carbonate powder, including a conveying box, a first cover body and a second cover body are respectively arranged on the front and rear sides of the conveying box, and a feeding hopper is arranged on the top of the conveying box.

[0009] A rotatable driving roller is installed in the inner cavity of the conveying box, and a conveyor belt is drivingly connected between the driving rollers.

[0010] A discharge hopper is arranged at the bottom of the conveying box.

[0011] A liftable first iron removal component is arranged above the feeding hopper.

[0012] A telescopic second iron removal component is arranged above the conveyor belt.

[0013] A seal assembly that can be opened and closed is provided on the first cover body.

[0014] As a further preference, the first iron removal assembly includes two groups of first support frames. A rotatable lead screw is installed on the first support frame. The lead screw is driven by an external first motor. A liftable carrier plate is installed between the lead screws in a threaded fit. A second motor is installed on the carrier plate. The output end of the second motor is installed with a rotatable first iron core stirring shaft, and the magnetic property of the first iron core stirring shaft can be changed by energization and power-off.

[0015] As a further preference, the second iron removal assembly includes a baffle. A third motor is provided in the middle of the baffle. The output end of the third motor drives a plurality of second iron core stirring shafts to rotate through a conveyor belt. The baffle can move back and forth under the drive of a first air cylinder located in the second cover body.

[0016] As a further preference, the seal assembly includes a sealing plate that is movably clamped on the first cover body. The sealing plate can control the opening and closing of the material conveying channel between the first cover body and the conveying box. A second support frame is provided on the top of the first cover body. A second air cylinder is provided on the second support frame. The free end of the second air cylinder is fixed to the sealing plate.

[0017] As a further preference, the bottom of the first cover body is connected with an iron filings collection box, and a switch door is installed on the iron filings collection box.

[0018] (III) Beneficial effects

[0019] The present utility model provides an iron removal device for heavy calcium carbonate powder. It has the following beneficial effects:

[0020] In this iron removal device for heavy calcium carbonate powder, by arranging an iron removal assembly above the conveyor belt, after the iron filings are adsorbed by the iron removal assembly and separated from the calcium carbonate powder, the conveyor belt can operate normally. Therefore, the operating load is reduced. At the same time, after the calcium carbonate powder is separated from the iron filings, it can also be freely discharged without being entrained and wasted. Further, for the adsorbed iron filings, they can be cleaned out through the driving mechanism, which is convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the present utility model;

[0022] Figure 2 It is a partial structural schematic diagram of the present utility model;

[0023] Figure 3 It is a top view of a partial structure of the present utility model.

[0024] In the figure: 1. Conveyor box; 2. First cover; 3. Second cover; 4. Feeding hopper; 5. Driving roller; 6. Conveyor belt; 7. Discharge hopper; 8. First support frame; 9. Lead screw; 10. First motor; 11. Bearing plate; 12. Second motor; 13. First iron core stirring shaft; 14. First cylinder; 15. Baffle; 16. Third motor; 17. Second iron core stirring shaft; 18. Second support frame; 19. Second cylinder; 20. Sealing plate; 21. Iron filings collection box; 22. Switching door. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0026] As Figure 1-2 shown, the present invention provides a technical solution: a device for removing iron from heavy calcium carbonate powder, including a conveyor box 1. A first cover 2 and a second cover 3 are respectively arranged on the front and rear sides of the conveyor box 1, and a feeding hopper 4 is arranged on the top of the conveyor box 1.

[0027] As Figure 2 shown, a rotatable driving roller 5 (driven by an external motor) is installed in the inner cavity of the conveyor box 1, and a conveyor belt 6 is drivingly connected between the driving rollers 5.

[0028] As Figure 1-2 shown, a discharge hopper 7 is arranged at the bottom of the conveyor box 1.

[0029] As Figure 1-2 shown, a liftable first iron removal assembly is arranged above the feeding hopper 4. The first iron removal assembly includes two groups of first support frames 8. A rotatable lead screw 9 is installed on the first support frame 8. The lead screw 9 is driven by an external first motor 10. A liftable bearing plate 11 is installed between the lead screws 8 in a threaded fit. A second motor 12 is installed on the bearing plate 11. The output end of the second motor 12 is installed with a rotatable first iron core stirring shaft 13. The magnetic property of the first iron core stirring shaft 13 can be changed by energizing and de-energizing (using the principle of an electromagnet, the iron core can generate a magnetic field after being energized). By turning on the first motor 10, the lead screw 9 is driven to rotate, and then the first iron core stirring shaft 13 can be driven to rise and leave the feeding hopper 4, and then it is de-energized to release iron filings, and then continue to work.

[0030] As Figure 2-3As shown in the figure, a telescopic second iron removal component is arranged above the conveyor belt 6. The second iron removal component includes a baffle 15. A third motor 16 is arranged in the middle of the baffle 15. The output end of the third motor 16 drives a plurality of second iron core stirring shafts 17 (using the principle of electromagnet, the iron core can generate a magnetic field after being electrified) to rotate through a conveyor belt. The baffle 15 can move back and forth under the drive of a first cylinder 14 located in the second housing 3.

[0031] As Figure 1 shown in the figure, a sealable seal component is arranged on the first housing 2. The seal component includes a sealing plate 20 movably clamped on the first housing 2. The sealing plate 20 can control the opening and closing of the material conveying channel between the first housing 2 and the conveying box 1. A second support frame 18 is arranged on the top of the first housing 2. A second cylinder 19 is arranged on the second support frame 18. The free end of the second cylinder 19 is fixed to the sealing plate 20.

[0032] As Figure 1 shown in the figure, an iron filings collection box 21 is connected to the bottom of the first housing 2. A switch door 22 is installed on the iron filings collection box 21. By opening the switch door 22, the iron filings can be taken out.

[0033] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0034] During use, pour the powder into the conveying box 1 through the feed hopper 4. During the process of the powder entering the conveying box 1, start the second motor 12 to drive the first iron core stirring shaft 13 to rotate. After the first iron core stirring shaft 13 is electrified, it generates magnetism. Thus, during the process of stirring the powder, the iron impurities therein are adsorbed and separated to achieve the purpose of preliminary screening.

[0035] When the powder enters the conveyor belt 6 in the conveying box 1, drive the conveyor belt 6 to move through an external motor. Then start the third motor 16 to drive a plurality of second iron core stirring shafts 17 to rotate. During the rotation, they come into contact with the powder, so as to adsorb and separate the iron filings in the powder again. After that, the powder is discharged through the discharge hopper 7.

[0036] Start the second cylinder 19 to drive the sealing plate 20 to rise, thereby opening the channel between the first housing 2 and the conveying box 1. Start the first cylinder 14 to push the second iron core stirring shaft 17 into the first housing 2. Then cut off the power supply of the second iron core stirring shaft 17, and the iron filings will immediately fall and enter the iron filings collection box 21 below for storage.

[0037] In summary, for the iron removal device for heavy calcium carbonate powder, by arranging an iron removal component above the conveyor belt, the iron filings are adsorbed by the iron removal component and separated from the calcium carbonate powder, and the conveyor belt can operate normally, thus reducing the operating load. At the same time, after the calcium carbonate powder is separated from the iron filings, it can also be discharged freely without being carried along and wasted. Further, for the adsorbed iron filings, they can be cleaned out through the driving mechanism, which is convenient and fast.

[0038] It should be noted that the electrical components mentioned in this article are all electrically connected to an external main controller and 220V or 380V mains power. And the main controller can be a conventional known device such as a computer for control. Its control principle, internal structure, and control switch mode are all conventional means of the existing technology and are directly cited here without further elaboration. In this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for removing iron from heavy calcium carbonate powder, characterized in that: It comprises a conveying box (1), wherein a first cover body (2) and a second cover body (3) are respectively arranged on the front and rear sides of the conveying box (1), and a feed hopper (4) is arranged on the top of the conveying box (1); The inner cavity of the conveying box (1) is provided with rotatable transmission rollers (5), and a conveyor belt (6) is connected between the transmission rollers (5); A discharge hopper (7) is provided at the bottom of the conveying box (1); A first iron removal assembly which can be raised and lowered is arranged above the feed hopper (4); A retractable second iron removal assembly is arranged above the conveyor belt (6); The first cover body (2) is provided with an openable and closable sealing component.

2. The iron removal device for heavy calcium carbonate powder according to claim 1, characterized in that: The first iron removal assembly comprises two groups of first support frames (8), a rotatable screw rod (9) is mounted on the first support frame (8), the screw rod (9) is driven by an external first motor (10), a liftable support plate (11) is threadedly mounted between the screw rods (9), a second motor (12) is mounted on the support plate (11), a rotatable first iron core stirring shaft (13) is mounted at the output end of the second motor (12), and the magnetic properties of the first iron core stirring shaft (13) can be changed by turning the power on and off.

3. The iron removal device for heavy calcium carbonate powder according to claim 1, characterized in that: The second iron removal assembly comprises a baffle (15), a third motor (16) is arranged in the middle of the baffle (15), the output end of the third motor (16) drives multiple groups of second iron core stirring shafts (17) to rotate through a conveyor belt, and the baffle (15) can move forward and backward through the drive of the first cylinder (14) located in the second cover body (3).

4. The iron removal device for heavy calcium carbonate powder according to claim 1, characterized in that: The sealing assembly comprises a sealing plate (20) movably clamped on the first cover body (2), the sealing plate (20) can control the opening and closing of the conveying channel between the first cover body (2) and the conveying box (1), a second support frame (18) is arranged on the top of the first cover body (2), a second cylinder (19) is arranged on the second support frame (18), and the free end of the second cylinder (19) is fixed to the sealing plate (20).

5. The iron removal device for heavy calcium carbonate powder according to claim 4, characterized in that: The bottom of the first cover body (2) is connected to an iron filings collection box (21), and a switch door (22) is installed on the iron filings collection box (21).

Images