Multistage vibrating screen for iron ore

Abstract

The utility model relates to the technical field of iron ore production, in particular to an iron ore multi-stage vibrating screen which comprises an iron ore screening machine box, the top of the iron ore screening machine box is fixedly connected with a feeding treatment box, and a fixing frame is fixedly installed on the top of the inner wall of the iron ore screening machine box. A first driving motor is fixedly mounted at the bottom of the inner wall of the fixing frame, a rotating disc is fixedly connected to the output end of the first driving motor, a hinge rod is rotationally connected to the surface of the rotating disc through a pin shaft, and a lifting plate is rotationally connected to the bottom of the hinge rod through a pin shaft seat; according to the structure, the feeding treatment box is additionally arranged above the iron ore screening machine box to conduct smashing treatment on iron ore, substances such as impurity particles attached to the iron ore are hit to fall off, and the iron ore is screened in a multi-stage mode in the follow-up vertical rotating, vibrating and tossing mode. And the operation effects of multi-stage vibration sieve tossing and subsequent collection and sorting after crushing treatment of the iron ore can be achieved.

Description

Technical Field

[0001] The utility model relates to an iron ore multi-stage vibrating screen, belonging to the technical field of iron ore production. Background Art

[0002] Iron ore is an important raw material for steel production enterprises. Iron ore is gradually separated from iron through crushing, grinding, magnetic separation, flotation, gravity separation and other procedures. It is a mineral aggregate containing iron or iron compounds that can be economically utilized. Due to the complex impurity composition of iron ore mined from mines, it usually needs to go through several preliminary separations before loading;

[0003] For example, the iron ore multi-stage vibrating screen with patent publication number CN202222862050.3 includes a machine body and an external high-pressure water pump, a plurality of equally spaced supporting legs are arranged at the bottom of the machine body, a cover plate is detachably connected to the top of the machine body, a feed port is opened on the cover plate, a feed pipe is fixedly connected to the feed port, a discharge port is arranged at the bottom of the machine body, a first solenoid valve is arranged at the discharge port, a plurality of equally spaced screening mechanisms are arranged in the machine body, and a dust reduction mechanism is arranged above the screening mechanism;

[0004] Since the above-mentioned iron ore multi-stage vibrating screen uses a vibration motor for vibration effect to control multiple screening mechanisms to vibrate and screen the iron ore, the extracted iron ore is mostly a mineral aggregate with impurities. The direct vibration screening has limited effect on removing impurities, which has brought certain adverse effects on actual use, and therefore needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-stage vibrating screen for iron ore. The utility model adds a feed processing box above the iron ore screening box to crush the iron ore, knock down the impurity particles and other materials attached to the iron ore, and then screens the iron ore in multiple stages by subsequently rotating the vibrating screen up and down, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The top of the iron ore screening machine is fixedly connected with a feed processing box, the top of the iron ore screening machine is fixedly installed with a fixing frame on the top of the inner wall of the iron ore screening machine, and the bottom of the inner wall of the fixing frame is fixedly installed with a driving motor 1, and the output end of the driving motor 1 is fixedly connected with a rotating disk, the surface of the rotating disk is rotatably connected with a hinge rod through a pin shaft, and the bottom of the hinge rod is rotatably connected with a lifting plate through a pin shaft seat, the top of the lifting plate is connected with a limiting component, the bottom of the lifting plate is fixedly connected with a protective frame, the inside of the protective frame is fixedly installed with a driving motor 2, the output end of the driving motor 2 is fixedly connected with a movable rotating rod, and the surface of the movable rotating rod is fixedly connected with a vibrating screen plate, and a guide plate is provided at the bottom of the inner wall of the iron ore screening machine, and the surface of the guide plate is slidably connected with a precipitation frame, and the front side of the precipitation frame is snap-fitted and adapted to the front side of the iron ore screening machine.

[0008] Furthermore, the main body of the feed processing box is a rectangular frame, the interior of the rectangular frame is connected with a grinding wheel through a driving end, the number of the grinding wheels is four, and the four grinding wheels are symmetrically distributed in an arc shape on the inner wall of the rectangular frame.

[0009] Furthermore, an arc-shaped guide plate is fixedly connected to the bottom of the inner wall of the rectangular frame, and the arc-shaped guide plate is located directly below the two grinding wheels in the middle.

[0010] Furthermore, an extension casing is fixedly connected to the top of the feed processing box, and a wear-resistant buffer plate is rotatably connected to the interior of the extension casing via a rotating pin with a torsion spring.

[0011] Furthermore, the limiting assembly includes a limiting rod and a limiting groove, the limiting rod is fixedly connected to the top of the lifting plate, the limiting groove is opened on the bottom of the fixed frame, and the inner wall of the limiting groove is slidably connected to the surface of the limiting rod.

[0012] Furthermore, the movable rotating rod is composed of three sections of movable rods, the top of the movable rod is an upper sleeve rod, the inner wall of the upper sleeve rod is slidably connected to the lower sleeve rod, the top of the lower sleeve rod and the top of the inner wall of the upper sleeve rod are connected with a tension spring through a damping pad, the side of the inner wall of the upper sleeve rod is provided with an anti-roll constraint groove, the side of the lower sleeve rod is fixedly connected to an anti-roll constraint plate, and the surface of the anti-roll constraint plate is slidably connected to the inner wall of the anti-roll constraint groove.

[0013] Furthermore, an anti-corrosion magnetic mesh plate is fixedly connected to the side of the inner wall of the sedimentation frame, the interior of the sedimentation frame is filled with clean water with adsorbent, and the anti-corrosion magnetic mesh plate is located inside the clean water.

[0014] The beneficial effects of the utility model are:

[0015] 1. In the utility model, the feeding processing box arranged above the iron ore screening machine box can process the iron ore, and the iron ore can be fed through the upper extended casing, and the wear-resistant buffer plate in the extended casing can play a buffering and unloading effect. The upper iron ore falls to the grinding wheel after the wear-resistant buffer plate unloads the force, and the four grinding wheels arranged in an arc shape as a whole can perform the wrapped iron ore crushing process, and there is a space between the grinding wheels for discharging the iron ore and cutting off the impurities attached thereto, and the arc-shaped guide plate located at the bottom of the inner wall of the feeding processing box discharges the iron ore into the interior of the iron ore screening machine box, and the iron ore can be processed and crushed for subsequent screening;

[0016] 2. In the utility model, the driving motor 1 is set to drive the rotating disk to rotate, and the rotation of the rotating disk can drive the hinge rod to adjust the movable position. Under the limiting action of the limit assembly, the movement trajectory of the lifting plate is limited, so that the lifting plate can be smoothly lifted and adjusted, and the movable rotating rod can be repeatedly adjusted up and down in height, and the vibrating screen plate is used to perform the iron ore shaking operation. At the same time, the driving motor 2 is operated to drive the movable rotating rod to drive the vibrating screen plate to rotate, so that the iron ore can be lifted and rotated for screening, and the movable rotating rod is elastically lifted and lowered by three sections of movable rods. The tension spring between the upper sleeve rod and the lower sleeve rod can play the role of elastic stretching and contraction reset. The addition of the anti-tilt constraint plate and the anti-tilt constraint groove can play the role of restraining the lifting direction, avoiding the lower sleeve rod from shifting during the sliding process in the upper sleeve rod, thereby achieving the multi-directional shaking effect of the vibrating screen plate at multiple upper and lower positions;

[0017] 3. In the utility model, the iron ore screening is completed by setting up an iron ore screening box inside, which will cause the debris and other impurities to fall. The debris and dust that are screened out can fall into the inside of the sedimentation frame, and the fallen materials can be adsorbed and collected by the anti-corrosion magnetic mesh plate. The subsequent staff can use the guide plate to pull and move the sedimentation frame out, so as to achieve the subsequent collection and sorting operation effect after the iron ore screening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of a multi-stage vibrating screen for iron ore in the utility model;

[0020] Figure 2 It is a front cross-sectional view of an iron ore multi-stage vibrating screen of the utility model;

[0021] Figure 3It is a front cross-sectional view of an upper sleeve rod in an iron ore multi-stage vibrating screen of the utility model;

[0022] Figure 4 This is an enlarged view of point A of a multi-stage vibrating screen for iron ore of the utility model;

[0023] Numbers in the figure: 1. Iron ore screening box; 2. Feed processing box; 3. Fixed frame; 4. Drive motor one; 5. Rotating plate; 6. Articulated rod; 7. Lifting plate; 8. Protective frame; 9. Drive motor two; 10. Movable rotating rod; 11. Vibrating screen plate; 12. Guide plate; 13. Sedimentation frame; 14. Crushing wheel; 15. Arc guide plate; 16. Extended casing; 17. Wear-resistant buffer plate; 18. Limit rod; 19. Limit groove; 20. Upper sleeve rod; 21. Lower sleeve rod; 22. Tension spring; 23. Anti-tilt restraint groove; 24. Anti-tilt restraint plate; 25. Anti-corrosion magnetic mesh plate; 26. Purified water. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] An iron ore multi-stage vibrating screen comprises an iron ore screening chassis 1, the top of the iron ore screening chassis 1 is fixedly connected to a feed processing box 2, the top of the inner wall of the iron ore screening chassis 1 is fixedly installed with a fixing frame 3, the bottom of the inner wall of the fixing frame 3 is fixedly installed with a driving motor 4, the output end of the driving motor 4 is fixedly connected with a rotating disk 5, the surface of the rotating disk 5 is rotatably connected with a hinge rod 6 through a pin shaft, the bottom of the hinge rod 6 is rotatably connected with a lifting plate 7 through a pin shaft seat, and the lifting plate 7 The top of the iron ore screening machine case 1 is connected with a limiting component, the bottom of the lifting plate 7 is fixedly connected with a protective frame 8, a driving motor 29 is fixedly installed inside the protective frame 8, the output end of the driving motor 29 is fixedly connected with a movable rotating rod 10, and the surface of the movable rotating rod 10 is fixedly connected with a vibrating screen plate 11, and a guide plate 12 is provided at the bottom of the inner wall of the iron ore screening machine case 1, and a precipitation frame 13 is slidably connected to the surface of the guide plate 12, and the front side of the precipitation frame 13 is clamped and adapted to the front side of the iron ore screening machine case 1.

[0027] Specifically, Figure 1-Figure 4As shown, an extended casing 16 is fixedly connected to the top of the feed processing box 2, and the interior of the extended casing 16 is rotatably connected to a wear-resistant buffer plate 17 via a rotating pin with a torsion spring. The wear-resistant buffer plate 17 in the extended casing 16 can buffer the unloading force, and the iron ore above falls to the grinding wheel 14 after the unloading force of the wear-resistant buffer plate 17.

[0028] Furthermore, the movable rotating rod 10 is composed of three sections of movable rods, the top of the movable rod is an upper sleeve rod 20, and the inner wall of the upper sleeve rod 20 is slidably connected with a lower sleeve rod 21, and a tension spring 22 is connected between the top of the lower sleeve rod 21 and the top of the inner wall of the upper sleeve rod 20 through a damping pad. An anti-roll constraint groove 23 is opened on the side of the inner wall of the upper sleeve rod 20, and an anti-roll constraint plate 24 is fixedly connected to the side of the lower sleeve rod 21. The surface of the anti-roll constraint plate 24 is slidably connected to the inner wall of the anti-roll constraint groove 23, and the tension spring 22 between the upper sleeve rod 20 and the lower sleeve rod 21 can play the role of elastic stretching and contraction and reset. The addition of the anti-roll constraint plate 24 and the anti-roll constraint groove 23 can play the role of constraint in the lifting direction, thereby avoiding the transfer of the lower sleeve rod 21 during the sliding process in the upper sleeve rod 20, thereby achieving a multi-directional screening effect of the vibrating screen plate 11 at multiple upper and lower positions.

[0029] Furthermore, an anti-corrosion magnetic mesh plate 25 is fixedly connected to the side of the inner wall of the sedimentation frame 13, and the interior of the sedimentation frame 13 is filled with clean water 26 with adsorbent. The anti-corrosion magnetic mesh plate 25 is located inside the clean water 26. Fallen materials can be adsorbed and collected through the anti-corrosion magnetic mesh plate 25, and subsequent staff can use the guide plate 12 to pull and remove the sedimentation frame 13.

[0030] Specifically, Figure 1-Figure 4 As shown, the limiting assembly includes a limiting rod 18 and a limiting groove 19, wherein the limiting rod 18 is fixedly connected to the top of the lifting plate 7, and the limiting groove 19 is provided on the bottom of the fixed frame 3, and the inner wall of the limiting groove 19 is slidably connected to the surface of the limiting rod 18. Through the setting of the limiting rod 18 and the limiting groove 19, the movement trajectory of the lifting plate 7 is limited, so that the lifting plate 7 can be smoothly raised and lowered.

[0031] Example 2 Please refer to Figure 1-Figure 4The difference between this embodiment and the embodiment 1 is that the main body of the feed processing box 2 is a rectangular frame, and the inside of the rectangular frame is connected to a grinding wheel 14 through the driving end. The number of the grinding wheels 14 is four, and the four grinding wheels 14 are symmetrically distributed in the inner wall of the rectangular frame in an arc shape. The bottom of the inner wall of the rectangular frame is fixedly connected with an arc guide plate 15, and the arc guide plate 15 is located directly below the two grinding wheels 14 in the middle. The iron ore can be put into the iron ore through the upper extended casing 16. The four grinding wheels 14 arranged in an arc shape as a whole can be used for the crushing of the wrapped iron ore, and there is a space between the grinding wheels 14 for discharging the iron ore and cutting off the impurities attached thereto, and the arc guide plate 15 located at the bottom of the inner wall of the feed processing box 2 discharges the iron ore into the inside of the iron ore screening machine box 1.

[0032] Working principle of the utility model: when in use, the feed processing box 2 above the iron ore screening machine box 1 can process the iron ore, and the iron ore can be put into the extended casing 16, and the wear-resistant buffer plate 17 in the extended casing 16 can play a buffering effect. The iron ore above falls to the grinding wheel 14 after the wear-resistant buffer plate 17 unloads the force. The four grinding wheels 14 arranged in an arc shape as a whole can perform the wrapped iron ore crushing process, and the grinding wheels 14 leave a space between them. It is a pity to discharge the iron ore and cut off the impurities attached thereto, and the arc-shaped guide plate 15 located at the bottom of the inner wall of the feed processing box 2 discharges the iron ore into the interior of the iron ore screening machine box 1, and the driving motor 4 drives the rotating disk 5 to rotate, and the rotation of the rotating disk 5 can drive the hinged rod 6 to adjust the active position. Through the setting of the limit rod 18 and the limit groove 19, the movement trajectory of the lifting plate 7 is limited, so that the lifting plate 7 can be smoothly lifted and lowered, which can make the movable rotating rod 10 is repeatedly adjusted up and down in height, and the vibrating screen plate 11 is used to perform the shaking operation of the iron ore. At the same time, the driving motor 29 is operated to drive the movable rotating rod 10 to drive the vibrating screen plate 11 to rotate, so that the movable lifting and rotating screening operation of the iron ore can be performed, and the movable rotating rod 10 is elastically movable by three sections of movable rods. The tension spring 22 between the upper sleeve rod 20 and the lower sleeve rod 21 can play the role of elastic stretching and contraction reset. The anti-tilt constraint plate 24 and the anti-tilt constraint groove 23 are added to constrain the lifting direction to prevent the lower sleeve rod 21 from shifting during the sliding process in the upper sleeve rod 20, thereby realizing the multi-directional shaking effect of the vibrating screen plate 11 at multiple upper and lower positions, and the debris and dust that are screened out can fall into the interior of the sedimentation frame 13, and the anti-corrosion magnetic suction mesh plate 25 can be used to absorb and collect the fallen materials. The subsequent staff can use the guide plate 12 to pull and remove the sedimentation frame 13, so as to realize the multi-stage vibration shaking and subsequent collection and sorting operation effect after the crushing of the iron ore.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An iron ore multi-stage vibrating screen, comprising an iron ore screening box (1), characterized in that: The top of the iron ore screening machine box (1) is fixedly connected to a feed processing box (2); the top of the inner wall of the iron ore screening machine box (1) is fixedly installed with a fixed frame (3); the bottom of the inner wall of the fixed frame (3) is fixedly installed with a driving motor (4); the output end of the driving motor (4) is fixedly connected to a rotating disk (5); the surface of the rotating disk (5) is rotatably connected to a hinge rod (6) via a pin shaft; the bottom of the hinge rod (6) is rotatably connected to a lifting plate (7) via a pin shaft seat; the top of the lifting plate (7) is connected to a limiting component, The bottom of the lifting plate (7) is fixedly connected to a protection frame (8), a second drive motor (9) is fixedly installed inside the protection frame (8), an output end of the second drive motor (9) is fixedly connected to a movable rotating rod (10), a surface of the movable rotating rod (10) is fixedly connected to a vibrating screen plate (11), a guide plate (12) is provided at the bottom of the inner wall of the iron ore screening box (1), a precipitation frame (13) is slidably connected to the surface of the guide plate (12), and the front side of the precipitation frame (13) is snap-fitted and matched with the front side of the iron ore screening box (1).

2. The iron ore multi-stage vibrating screen according to claim 1, characterized in that: The main body of the feed processing box (2) is a rectangular frame, the interior of the rectangular frame is connected to a grinding wheel (14) via a driving end, the number of the grinding wheels (14) is four, and the four grinding wheels (14) are symmetrically distributed in an arc shape on the inner wall of the rectangular frame.

3. The iron ore multi-stage vibrating screen according to claim 2, characterized in that: An arc-shaped guide plate (15) is fixedly connected to the bottom of the inner wall of the rectangular frame, and the arc-shaped guide plate (15) is located directly below the two grinding wheels (14) in the middle.

4. The iron ore multi-stage vibrating screen according to claim 1, characterized in that: The top of the feed processing box (2) is fixedly connected with an extension sleeve (16), and the interior of the extension sleeve (16) is rotatably connected with a wear-resistant buffer plate (17) via a rotating pin with a torsion spring.

5. The iron ore multi-stage vibrating screen according to claim 1, characterized in that: The limiting assembly comprises a limiting rod (18) and a limiting groove (19); the limiting rod (18) is fixedly connected to the top of the lifting plate (7); the limiting groove (19) is arranged on the bottom of the fixed frame (3); and the inner wall of the limiting groove (19) is slidably connected to the surface of the limiting rod (18).

6. The iron ore multi-stage vibrating screen according to claim 1, characterized in that: The movable rotating rod (10) is composed of three sections of movable rods, the top of the movable rod is an upper sleeve rod (20), the inner wall of the upper sleeve rod (20) is slidably connected to a lower sleeve rod (21), a tension spring (22) is connected between the top of the lower sleeve rod (21) and the top of the inner wall of the upper sleeve rod (20) via a damping pad, an anti-roll constraint groove (23) is opened on the side of the inner wall of the upper sleeve rod (20), and an anti-roll constraint plate (24) is fixedly connected to the side of the lower sleeve rod (21), and the surface of the anti-roll constraint plate (24) is slidably connected to the inner wall of the anti-roll constraint groove (23).

7. The iron ore multi-stage vibrating screen according to claim 1, characterized in that: An anti-corrosion magnetic mesh plate (25) is fixedly connected to the side of the inner wall of the sedimentation frame (13), the interior of the sedimentation frame (13) is filled with clean water (26) containing an adsorbent, and the anti-corrosion magnetic mesh plate (25) is located inside the clean water (26).

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