Dry-type fine iron powder extraction machine

Abstract

The utility model relates to the technical field of fine iron powder processing, and discloses a dry fine iron powder extraction machine which comprises a box body, a feeding port is formed in the top of the box body, a material receiving box is arranged at the bottom of the box body in a drawing mode, a grinding cavity and a screening cavity are formed in the box body from top to bottom, and a plurality of grinding teeth are arrayed on the inner circumference of the grinding cavity. A grinding piece matched with the grinding teeth is rotatably arranged in the grinding cavity, hydraulic cylinders are symmetrically arranged on the box body, the telescopic ends of the hydraulic cylinders are connected with a lifting plate, a first motor is fixedly arranged on the lifting plate, and a rotating shaft of the grinding piece penetrates through the top of the box body and is connected with the first motor; connecting pieces are connected to the fixing plate through a plurality of vibration springs, a filter screen is arranged between the two connecting pieces in an inserted mode, the filter screen is located over the material collecting box, and a striking assembly used for striking the connecting pieces is arranged above the connecting pieces. The device can control and adjust the size of grinding particles, meet different machining requirements, reduce the use cost, conduct screening and improve the working efficiency.

Description

Technical Field

[0001] This utility model relates to the field of iron concentrate processing technology, specifically to a dry iron concentrate extraction machine. Background Technology

[0002] Iron concentrate typically refers to high-grade iron ore powder that has undergone beneficiation and is used in smelting. There are two methods for extracting iron concentrate: dry grinding and wet grinding. Dry extraction refers to the process of separating iron minerals from other impurities using physical methods without the need for water.

[0003] Most existing iron ore grinding devices typically use grinding rollers that rotate relative to each other to grind iron ore into fine particles. However, the distance between the grinding rollers is not adjustable, so the size of the grinding particles cannot be adjusted. Different equipment needs to be replaced for operation, resulting in poor flexibility of use and making it unsuitable for different processing needs. Summary of the Invention

[0004] (I) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the above-mentioned devices, which have the defect that the size of the grinding particles cannot be adjusted and cannot be used for different processing needs, and to provide a dry iron concentrate extraction machine.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a dry iron concentrate extraction machine, including a box body, a feed inlet at the top of the box body, a receiving box that can be pulled out at the bottom of the box body, a grinding chamber and a screening chamber respectively arranged from top to bottom in the box body, a plurality of grinding teeth arranged in a circular array in the grinding chamber, a grinding element that rotates in the grinding chamber and cooperates with the grinding teeth, hydraulic cylinders symmetrically arranged on the box body, a lifting plate connected to the telescopic end of the hydraulic cylinders, a motor fixedly arranged on the lifting plate, the rotating shaft of the grinding element passing through the top of the box body and connected to the motor, a fixed plate symmetrically arranged in the screening chamber, a connecting piece connected to the fixed plate by a plurality of equidistant array vibration springs, a filter screen inserted between two connecting pieces, the filter screen being located directly above the receiving box, and a striking component for striking the connecting piece being provided above the connecting piece.

[0008] As an improvement: the grinding part is composed of a straight cylindrical grinding head and a frustum-shaped grinding head, wherein the inclination angle of the frustum-shaped grinding head is greater than the inclination angle of the grinding teeth.

[0009] As an improvement: a limiting frame is provided at the bottom of the grinding chamber, a limiting hole is provided at the center of the limiting frame, the rotating shaft of the grinding part is inserted into the limiting hole, and a limiting plate is provided at the bottom of the rotating shaft of the grinding part.

[0010] As an improvement: the impact assembly includes two cams that are rotatably disposed in the screening chamber. Equipment cavities are opened on both sides of the box body. The cam shaft extends through the box body into the equipment cavity and is connected to a synchronous pulley. The two synchronous pulleys are connected by a synchronous belt. A second motor is disposed in the equipment cavity and is connected to the cam shaft.

[0011] As an improvement: the box body is symmetrically hinged to the screening chamber area with a box door, and a surrounding plate is provided around the filter screen, the diameter of which is larger than the inner diameter of the grinding chamber.

[0012] (III) Beneficial Effects

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] The height of the grinding workpiece is adjusted by controlling the hydraulic cylinder, thereby changing the distance between the grinding workpiece and the grinding teeth, and thus adjusting the size of the grinding particles. This can be adjusted according to processing requirements, improving the practicality of the device and reducing operating costs.

[0015] The screening chamber is equipped with a filter screen. Through the cooperation of a vibration spring and an impact component, the impact component causes the filter screen to vibrate, which can screen the ground particles and improve work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a dry iron concentrate extraction machine according to this utility model.

[0017] Figure 2 yes Figure 1 A schematic diagram of the partial cross-sectional structure from the left view.

[0018] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure at point AA.

[0019] Figure 4 yes Figure 3 A magnified structural diagram of part A in the middle section.

[0020] Figure 5 This is a schematic diagram of the grinding component structure of a dry iron concentrate extractor according to this utility model.

[0021] Figure 6 yes Figure 1 A schematic diagram of the front view structure.

[0022] Figure 7 yes Figure 6 A schematic diagram of the cross-sectional structure at point BB.

[0023] [Explanation of Labels in the Attached Image]

[0024] 1. Box body; 2. Feed inlet; 3. Receiving box; 4. Grinding chamber; 5. Screening chamber; 6. Grinding teeth; 7. Hydraulic cylinder; 8. Lifting plate; 9. Motor 1; 10. Fixing plate; 11. Connecting parts; 12. Filter screen; 13. Straight cylindrical grinding head; 14. Conical grinding head; 15. Limiting frame; 16. Limiting plate; 17. Cam; 18. Equipment cavity; 19. Synchronous pulley; 20. Synchronous belt; 21. Motor 2; 22. Box door; 23. Enclosure; 24. Vibration spring. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0026] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0027] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0028] Example 1

[0029] Combined with appendix Figure 1 , Figures 5 to 7 As shown, a dry iron concentrate extraction machine includes a housing 1, with a feed inlet 2 at the top and a pull-out receiving box 3 at the bottom. The housing 1 contains a grinding chamber 4 and a screening chamber 5 arranged from top to bottom. The grinding chamber 4 contains a plurality of grinding teeth 6 arranged in a circular array. A grinding element that rotates within the grinding chamber 4 and engages with the grinding teeth 6 is also present. The grinding element is composed of a straight cylindrical grinding head 13 and a frustum-shaped grinding head 14. The frustum-shaped grinding head 14 has an inclination angle greater than that of the grinding teeth 6. The housing 1 is symmetrically arranged with… A hydraulic cylinder 7 is provided, and a lifting plate 8 is connected to the telescopic end of the hydraulic cylinder 7. A motor 9 is fixedly installed on the lifting plate 8. The rotating shaft of the grinding part passes through the top of the housing 1 and is connected to the motor 9. A limiting frame 15 is provided at the bottom of the grinding chamber 4. A limiting hole is provided in the center of the limiting frame 15. The rotating shaft of the grinding part is inserted into the limiting hole. A limiting plate 16 is provided at the bottom of the rotating shaft of the grinding part. The setting of the limiting frame 15 ensures the stability of the grinding part when rotating. At the same time, the design of the limiting plate 16 avoids damage to the grinding part due to excessive adjustment of the grinding part.

[0030] Iron ore enters the grinding chamber 4 through the feed inlet 2. The motor 9 drives the grinding parts to rotate. First, the iron ore is coarsely ground by the straight cylindrical grinding head 13 and the grinding teeth 6. The coarsely ground particles are then ground into finer particles by the conical grinding head 14 and the grinding teeth 6. The height position of the grinding parts in the grinding chamber 4 can be changed by the control of the hydraulic cylinder 7, thereby changing the distance between the grinding parts and the grinding teeth 6 to change the size of the grinding particles, which is suitable for different processing conditions and processing requirements.

[0031] The process of the ground particles falling into the collection box 3 is designed to reduce subsequent operation steps and improve processing efficiency, combined with the attached... Figure 1 and Figure 3 As shown, a fixed plate 10 is symmetrically arranged inside the screening chamber 5. Connecting members 11 are connected to the fixed plate 10 via several equally spaced vibration springs 24. A filter screen 12 is inserted between two connecting members 11. The filter screen 12 is located directly above the receiving box 3. A box door 22 is symmetrically hinged to the box body 1 in the screening chamber 5 area. A surrounding plate 23 surrounds the filter screen 12. The diameter of the surrounding plate 23 is larger than the inner diameter of the grinding chamber 4. The surrounding plate 23 prevents the particles from expanding outwards during the screening process. After grinding, the particles pass through the filter screen 12, and particles that meet the standards fall into the receiving box 3.

[0032] Example 2

[0033] Based on Example 1, the ground iron ore particles falling onto filter screen 12 may cause clogging of filter screen 12, affecting screening efficiency. (In conjunction with the attached...) Figures 2 to 4 As shown, a striking assembly for striking the connector 11 is provided above the connector 11. The striking assembly includes two cams 17 rotatably disposed within the screening chamber 5. Equipment chambers 18 are provided on both sides of the housing 1. The rotating shaft of the cams 17 extends through the housing 1 into the equipment chamber 18 and is connected to a synchronous pulley 19. The two synchronous pulleys 19 are connected by a synchronous belt 20. A second motor 21 is provided within the equipment chamber 18 and is connected to the rotating shaft of the cams 17. With the cooperation of the synchronous pulleys 19 and the synchronous belt 20, the second motor 21 drives the two cams 17 to rotate at the same frequency, thereby continuously striking the connector 11. With the cooperation of the vibration spring 24, the filter screen 12 on the connector 11 continuously vibrates, thereby clearing the particles blocked on the filter screen 12 and ensuring screening efficiency.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A dry iron ore concentrate extractor, comprising a box (1), the top of the box (1) is provided with a feeding port (2), the bottom of the box (1) is provided with a material collecting box (3), characterized in that: a grinding cavity (4) and a screening cavity (5) are arranged in the box (1) from top to bottom, a plurality of grinding teeth (6) are arranged in the grinding cavity (4) in a circumferential array, a grinding part cooperating with the grinding teeth (6) is arranged in the grinding cavity (4) and rotates, a hydraulic cylinder (7) is arranged symmetrically on the box (1), the extension end of the hydraulic cylinder (7) is connected with a lifting plate (8), a motor one (9) is fixedly arranged on the lifting plate (8), the rotating shaft of the grinding part penetrates through the top of the box (1) and is connected with the motor one (9); a fixed plate (10) is arranged symmetrically in the screening cavity (5), a connecting part (11) is connected to the fixed plate (10) by a plurality of equidistantly arranged vibration springs (24), a filter screen (12) is arranged between the two connecting parts (11) in a plug-in manner, the filter screen (12) is located directly above the material collecting box (3), and a striking assembly for striking the connecting part (11) is arranged above the connecting part (11).

2. A dry iron ore concentrate extractor as claimed in claim 1 wherein: The grinding part is composed of a straight cylinder grinding head (13) and a conical grinding head (14), and the inclination angle of the conical grinding head (14) is greater than the inclination angle of the grinding teeth (6).

3. A dry iron ore concentrate extractor as claimed in claim 2, wherein: A limiting frame (15) is arranged at the bottom of the grinding cavity (4), a limiting hole is arranged at the center of the limiting frame (15), the rotating shaft of the grinding part is arranged in the limiting hole in a plug-in manner, and a limiting plate (16) is arranged at the bottom of the rotating shaft of the grinding part.

4. A dry iron ore concentrate extractor as claimed in claim 1, wherein: The striking assembly comprises two cams (17) rotating in the screening cavity (5), equipment cavities (18) are formed in both sides of the box (1), the rotating shafts of the cams (17) penetrate through the box (1) and extend into the equipment cavities (18) to be connected with synchronous wheels (19), the two synchronous wheels (19) are connected by a synchronous belt (20), a motor two (21) is arranged in the equipment cavity (18), and the motor two (21) is connected with the rotating shafts of the cams (17).

5. A dry iron ore concentrate extractor as claimed in claim 1, wherein: A box door (22) is hingedly arranged on the box (1) in the region of the screening cavity (5), a surrounding plate (23) is arranged around the filter screen (12), and the diameter of the surrounding plate (23) is greater than the inner diameter of the grinding cavity (4).

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