Fine screening device for fine iron powder

Abstract

The utility model discloses an iron fine powder fine screening device which comprises an upper screening and separating cylinder, a sealing cover is detachably installed on the top of the upper screening and separating cylinder, an iron fine powder feeding port is formed in one side of the top of the sealing cover, and a screening mechanism extending into the upper screening and separating cylinder is installed in the center of the top of the sealing cover. The bottom of the upper screening and separating barrel communicates with a lower fine iron powder screening box, four sets of supporting legs are installed at the bottom of the lower fine iron powder screening box, a power supply assembly is installed on one side of the lower fine iron powder screening box, and an electromagnetic screening mechanism electrically connected with the power supply assembly is installed in the lower fine iron powder screening box. The device has the beneficial effects that the device is simple in structure and convenient to operate, the to-be-screened fine iron powder can be pretreated, large impurities in the to-be-screened fine iron powder can be screened out, meanwhile, the fine iron powder is adsorbed through the electromagnetic screening mechanism for screening, magnetism is lost after power failure, the fine iron powder automatically falls off, cost is low, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of iron ore concentrate screening, in particular to a device for finely screening iron ore concentrate. Background Art

[0002] In the metallurgical industry, pellets and sintered ore are important blast furnace charges. Among them, iron ore concentrate, one of the main raw materials for powder ore agglomeration, has an iron content that will directly affect the quality of the pellets. In order to improve the quality of the pellets, the ore impurities contained in the iron ore concentrate need to be screened out before the metallurgical process can be carried out.

[0003] In the process of iron ore concentrate screening, there are many large particles of impurities in the iron ore concentrate, such as stones, etc. However, some screening devices on the market have high screening costs, and iron ore concentrate is easily mixed with a lot of impurities such as sand. Since the volume of these impurities is similar to that of the iron ore concentrate, it is difficult to screen them out, which makes the entire screening process complicated and requires a lot of manual processing, so the cost is high.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a device for finely screening iron ore concentrate.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a device for fine screening of iron ore concentrate, comprising an upper screening and separation cylinder, a sealing cover is detachably installed on the top of the upper screening and separation cylinder, an iron ore concentrate inlet is opened on one side of the top of the sealing cover, a screening mechanism extending into the upper screening and separation cylinder is installed at the top center of the sealing cover, the bottom of the upper screening and separation cylinder is connected to a lower iron ore concentrate screening box, four groups of supporting legs are installed at the bottom of the lower iron ore concentrate screening box, a power supply assembly is installed on one side of the lower iron ore concentrate screening box, and an electromagnetic screening mechanism electrically connected to the power supply assembly is installed in the lower iron ore concentrate screening box.

[0007] Preferably, the screening mechanism comprises a driving motor fixedly mounted at the center of the sealing cover, the output end of the driving motor is connected to a transmission shaft extending into the upper screening and separation cylinder, and one end of the transmission shaft located in the upper screening and separation cylinder is connected to a conical screening cylinder.

[0008] Preferably, a retaining ring is installed on the top of the conical screening cylinder, and the diameter of the retaining ring is slightly smaller than the inner diameter of the upper screening separation cylinder, the bottom end of the transmission shaft is connected to the inner bottom of the conical screening cylinder, and a plurality of screening holes are opened on the conical screening cylinder.

[0009] Preferably, the electromagnetic screening mechanism includes an annular iron core located in the lower iron ore concentrate screening box, a current-carrying conductor is wound around the outside of the annular iron core, both ends of the annular iron core are connected to insulating connecting blocks, and the annular iron core is installed in the lower iron ore concentrate screening box through the insulating connecting blocks.

[0010] Preferably, the power supply assembly includes an outer shell installed on the outer wall of the lower iron ore concentrate screening box, positioning side plates are symmetrically installed in the outer shell, a power supply battery is arranged between the positioning side plates, an electric wire at one end of the power supply battery contacts a conductive iron sheet, a power supply wire is connected to the conductive iron sheet, and the power supply wire is connected to the power-carrying wire.

[0011] Preferably, an outer mounting plate is provided on the outer shell, the outer mounting plate is detachably connected to the outer shell via mounting nails, and an elastic positioning plate in contact with the power supply battery is provided inside the outer mounting plate.

[0012] Preferably, a sealing door is movably installed on the lower iron ore concentrate screening box through hinges, a handle is installed on the sealing door, and an opening communicating with the upper screening and separation cylinder is installed on the top of the lower iron ore concentrate screening box.

[0013] The utility model provides a device for fine screening of iron ore concentrate, which has the following beneficial effects:

[0014] The sealing cover is detachably installed on the top of the upper screening and separation cylinder to facilitate the cleaning of the equipment. The iron ore powder inlet is provided for feeding the iron ore powder to be screened. The iron ore powder fed from the iron ore powder inlet is preliminarily screened through the screening mechanism to screen out large impurities therein, so that the screened iron ore powder continues to be transported downward and enters the lower iron ore powder screening box. The electromagnetic screening mechanism is powered by the power supply component, so that the electromagnetic screening mechanism is energized to generate magnetism, and the iron ore powder falling from above is adsorbed. The impurities can be cleaned by opening the sealing door. The device of the present application has a simple structure and is easy to operate. It can pre-treat the iron ore powder to be screened and screen out large impurities therein. At the same time, the electromagnetic screening mechanism is used to adsorb the iron ore powder for screening. After power failure, the magnetism is lost and the iron ore powder automatically falls off. The cost is low and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1This is a front view of a device for fine screening of iron ore concentrate according to an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of a lower iron ore concentrate screening box in an iron ore concentrate fine screening device according to an embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a screening mechanism in a fine screening device for iron ore concentrate according to an embodiment of the utility model;

[0019] Figure 4 It is a structural schematic diagram of an electromagnetic screening mechanism in an iron ore fine screening device according to an embodiment of the utility model;

[0020] Figure 5 It is a structural schematic diagram of a power supply component in an iron ore concentrate fine screening device according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Upper screening and separation cylinder; 2. Sealing cover; 3. Iron concentrate inlet; 4. Screening mechanism; 5. Lower iron concentrate screening box; 6. Support legs; 7. Power supply assembly; 8. Electromagnetic screening mechanism; 9. Driving motor; 10. Transmission shaft; 11. Conical screening cylinder; 12. Screening hole; 13. Baffle ring; 14. Ring core; 15. Power-carrying wire; 16. Insulating connecting block; 17. Outer shell; 18. Positioning side plate; 19. Power supply battery; 20. Conductive iron sheet; 21. Power supply wire; 22. External mounting plate; 23. Elastic positioning plate; 24. Sealing door; 25. Handle; 26. Opening. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4The utility model provides an iron ore fine screening device, comprising an upper screening separation cylinder 1, a sealing cover 2 is detachably mounted on the top of the upper screening separation cylinder 1, an iron ore fine powder feeding port 3 is provided on one side of the top of the sealing cover 2, and the sealing cover 2 is detachably mounted on the top of the upper screening separation cylinder 1, so that the cleaning work of the equipment is convenient, and the iron ore fine powder feeding port 3 is provided for feeding the iron ore fine powder to be screened, and a screening mechanism 4 extending into the upper screening separation cylinder 1 is installed at the top center of the sealing cover 2, and the iron ore fine powder fed from the iron ore fine powder feeding port 3 is preliminarily screened through the function of the screening mechanism 4, and the iron ore fine powder in the iron ore fine powder feeding port 3 is screened out. Large impurities are removed so that the screened iron ore powder continues to be transported downward. The bottom of the upper screening separation cylinder 1 is connected to the lower iron ore powder screening box 5. Four groups of supporting legs 6 are installed at the bottom of the lower iron ore powder screening box 5. A power supply component 7 is installed on one side of the lower iron ore powder screening box 5. An electromagnetic screening mechanism 8 electrically connected to the power supply component 7 is installed in the lower iron ore powder screening box 5. Enter the lower iron ore powder screening box 5 and power the electromagnetic screening mechanism 8 through the power supply component 7, so that the electromagnetic screening mechanism 8 is energized to generate magnetism to absorb the iron ore powder falling from above. The impurities can be cleaned by opening the sealing door 24.

[0025] In one embodiment, please refer to the attached manual. Figure 3 As shown, the screening mechanism 4 includes a driving motor 9 fixedly mounted at the center of the sealing cover 2, the output end of the driving motor 9 is connected to a transmission shaft 10 extending into the upper screening and separation cylinder 1, one end of the transmission shaft 10 located in the upper screening and separation cylinder 1 is connected to a conical screening cylinder 11, a retaining ring 13 is installed on the top of the conical screening cylinder 11, and the diameter of the retaining ring 13 is slightly smaller than the inner diameter of the upper screening and separation cylinder 1, the bottom end of the transmission shaft 10 is connected to the inner bottom of the conical screening cylinder 11, and a plurality of screening holes 12 are provided on the conical screening cylinder 11. The transmission shaft 10 is driven to rotate by the set driving motor 9, thereby rotating the conical screening cylinder 11, and the iron ore fines entering from the iron ore fines inlet 3 fall into the conical screening cylinder 11, and the large impurities are screened out by the centrifugal force and the screening holes 12.

[0026] In one embodiment, please refer to the attached manual. Figure 4 As shown, the electromagnetic screening mechanism 8 includes an annular iron core 14 located in the lower iron concentrate screening box 5, a current-carrying wire 15 is wound around the outside of the annular iron core 14, both ends of the annular iron core 14 are connected to insulating connection blocks 16, and the annular iron core 14 is installed in the lower iron concentrate screening box 5 through the insulating connection blocks 16. The current-carrying wire 15 is provided in cooperation with the annular iron core 14, and magnetism is generated on the current-carrying wire 15, so that the screening of the iron concentrate is realized.

[0027] In one embodiment, please refer to the attached manual. Figure 5 As shown, the power supply assembly 7 includes an outer shell 17 installed on the outer wall of the lower iron concentrate screening box 5, and positioning side plates 18 are symmetrically installed in the outer shell 17. A power supply battery 19 is arranged between the positioning side plates 18. A conductive iron sheet 20 is contacted with one end of the power supply battery 19 by a wire, and a power supply wire 21 is connected to the conductive iron sheet 20, and the power supply wire 21 is connected to the power supply wire 15. An outer mounting plate 22 is arranged on the outer shell 17, and the outer mounting plate 22 is detachably connected to the outer shell 17 through mounting nails. An elastic positioning plate 23 in contact with the power supply battery 19 is arranged inside the outer mounting plate 22. The power supply battery 19 is positioned by the positioning side plates 18, and the conductive iron sheet 20 contacts the conductive part of the power supply battery 19 to realize power supply work. The outer mounting plate 22 cooperates with the elastic positioning plate 23 to increase the stability of the power supply battery 19.

[0028] In one embodiment, please refer to the attached manual. Figure 1-2 As shown, the lower iron ore concentrate screening box 5 is provided with a sealed door 24 through hinges, a handle 25 is provided on the sealed door 24, and an opening 26 connected to the upper screening separation cylinder 1 is provided on the top of the lower iron ore concentrate screening box 5. The sealing door 24 cooperates with the handle 25 to facilitate the opening and closing of the lower iron ore concentrate screening box 5, and the opening 26 facilitates the falling of the pre-treated iron ore concentrate.

[0029] In actual application, a sealing cover 2 is detachably installed on the top of the upper screening and separation cylinder 1 to facilitate cleaning of the equipment. The iron ore powder feed port 3 is provided for feeding the iron ore powder to be screened. The iron ore powder fed from the iron ore powder feed port 3 is preliminarily screened through the screening mechanism 4 to screen out large impurities therein, so that the screened iron ore powder continues to be transported downward and enters the lower iron ore powder screening box 5. The electromagnetic screening mechanism 8 is powered by the power supply component 7, so that the electromagnetic screening mechanism 8 is energized to generate magnetism, and the iron ore powder falling from above is adsorbed. The impurities can be cleaned by opening the sealing door 24. The device of the present application has a simple structure and is easy to operate. It can pre-treat the iron ore powder to be screened and screen out large impurities therein. At the same time, the electromagnetic screening mechanism 8 is used to adsorb the iron ore powder for screening. After power failure, the magnetism is lost and the iron ore powder automatically falls off.

[0030] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for fine screening of iron ore concentrate, characterized in that: The invention comprises an upper screening and separation cylinder (1), a sealing cover (2) is detachably mounted on the top of the upper screening and separation cylinder (1), an iron ore concentrate inlet (3) is provided on one side of the top of the sealing cover (2), a screening mechanism (4) extending into the upper screening and separation cylinder (1) is mounted at the center of the top of the sealing cover (2), the bottom of the upper screening and separation cylinder (1) is connected to a lower iron ore concentrate screening box (5), four groups of supporting legs (6) are mounted on the bottom of the lower iron ore concentrate screening box (5), a power supply assembly (7) is mounted on one side of the lower iron ore concentrate screening box (5), and an electromagnetic screening mechanism (8) electrically connected to the power supply assembly (7) is mounted in the lower iron ore concentrate screening box (5).

2. The iron concentrate fine screening device according to claim 1, characterized in that: The screening mechanism (4) comprises a driving motor (9) fixedly mounted at the center of the sealing cover (2); the output end of the driving motor (9) is connected to a transmission shaft (10) extending into the upper screening separation cylinder (1); one end of the transmission shaft (10) located in the upper screening separation cylinder (1) is connected to a conical screening cylinder (11).

3. The iron concentrate fine screening device according to claim 2, characterized in that: A retaining ring (13) is installed on the top of the conical screening cylinder (11), and the diameter of the retaining ring (13) is slightly smaller than the inner diameter of the upper screening separation cylinder (1). The bottom end of the transmission shaft (10) is connected to the inner bottom of the conical screening cylinder (11), and a plurality of screening holes (12) are opened on the conical screening cylinder (11).

4. The iron concentrate fine screening device according to claim 3 is characterized in that: The electromagnetic screening mechanism (8) comprises an annular iron core (14) located in the lower iron concentrate screening box (5), a current-carrying conductor (15) is wound around the outside of the annular iron core (14), both ends of the annular iron core (14) are connected to insulating connection blocks (16), and the annular iron core (14) is installed in the lower iron concentrate screening box (5) via the insulating connection blocks (16).

5. The iron concentrate fine screening device according to claim 4, characterized in that: The power supply assembly (7) comprises an outer shell (17) mounted on the outer wall of the lower iron concentrate screening box (5), positioning side plates (18) are symmetrically mounted in the outer shell (17), a power supply battery (19) is arranged between the positioning side plates (18), one end of the power supply battery (19) is in contact with a conductive iron sheet (20), a power supply wire (21) is connected to the conductive iron sheet (20), and the power supply wire (21) is connected to the power supply wire (15).

6. The iron concentrate fine screening device according to claim 5, characterized in that: An outer mounting plate (22) is provided on the outer shell (17), and the outer mounting plate (22) is detachably connected to the outer shell (17) via mounting nails. An elastic positioning plate (23) in contact with the power supply battery (19) is provided inside the outer mounting plate (22).

7. The iron concentrate fine screening device according to claim 6, characterized in that: A sealing door (24) is movably mounted on the lower iron ore concentrate screening box (5) via hinges, a handle (25) is mounted on the sealing door (24), and an opening (26) communicating with the upper screening separation cylinder (1) is mounted on the top of the lower iron ore concentrate screening box (5).

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