A pretreatment and classification device for scheelite ore before it enters the mill

Abstract

This utility model relates to the field of scheelite processing technology and discloses a pretreatment and grading device for scheelite ore before it enters the mill. The device includes a grading box and a support frame. The grading box contains a first screening plate and a second screening plate. A drive motor is located at one end of the grading box, and a lifting mechanism is located inside the grading box. The lifting mechanism includes a rotating seat, which is a cross-shaped frame. A rotating rod is located at one end of the rotating seat, and one end of the rotating rod is fixedly connected to the drive motor. A groove is located inside the rotating seat, and a slider is located inside the groove. The slider is slidably installed inside the groove. A telescopic spring is located at one end of the slider, and a moving rod is located at one end of the slider. An impact ball is located at one end of the moving rod. In this utility model, by setting up a lifting mechanism, the vibration amplitude of the first and second screening plates can be increased, the rolling speed of the ore at the upper end of the first and second screening plates can be accelerated, the ore grading time can be shortened, and the scheelite ore grading efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of scheelite processing technology, and in particular to a pretreatment and grading device for scheelite ore before it enters the mill. Background Technology

[0002] Scheelite is a type of ore that appears as granular stones, white with a yellowish tinge, sometimes with a greasy luster, and orange in color. It forms bipyramidal crystals, which are large with transparent, deep orange tips. It occurs in association with calcite, muscovite, and black cassiterite. Scheelite and calcite exhibit fluorescence, turning slightly purple when heated or exposed to ultraviolet light. It is a major raw material for tungsten smelting, and scheelite needs to be graded before entering the mill.

[0003] Existing scheelite pretreatment and classification devices suffer from slow ore feeding speed during the classification process, which prolongs the classification time and affects the classification efficiency of scheelite ore. To address this, we propose a pretreatment and classification device for scheelite ore before it enters the mill. Utility Model Content

[0004] The main purpose of this invention is to provide a pretreatment and classification device for scheelite ore before it enters the mill, which can effectively solve the technical problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a pretreatment and grading device for scheelite ore before milling, comprising a grading box and a support frame. The grading box has a feed inlet at its upper end, a first screening plate and a second screening plate inside the grading box, a first discharge port at one end of the grading box, a second discharge port at the lower end of the first discharge port, and a third discharge port at the lower end of the grading box. Elastic support components are respectively provided at the lower ends of the first screening plate and the second screening plate. A drive motor is provided at one end of the grading box, and a lifting mechanism is provided inside the grading box. One end of the lifting mechanism is connected to the drive motor. The lifting mechanism includes a rotating seat, which is a cross-shaped strip frame. A rotating rod is provided at one end of the rotating seat, and one end of the rotating rod is fixedly connected to the rotating seat and the drive motor. A sliding groove is provided inside the rotating seat, and a slider is provided inside the sliding groove. The slider is slidably installed inside the sliding groove. A telescopic spring is provided at one end of the slider, and a moving rod is provided at one end of the slider. An impact ball is provided at one end of the moving rod.

[0006] Preferably, the moving rod is an L-shaped rigid metal rod, with one end of the moving rod fixedly connected to the slider.

[0007] Preferably, the impact ball is a spherical, soft, wear-resistant rubber block, with one end of the impact ball fixedly connected to the moving rod.

[0008] Preferably, the first screening plate and the second screening plate are installed at an angle, and the screening mesh sizes of the first screening plate and the second screening plate are different.

[0009] Preferably, the grading box is equipped with two sets of guide plates inside. The two sets of guide plates are installed at an inverted V-shape, and one end of the guide plate is fixedly connected to the grading box.

[0010] Preferably, the elastic support assembly includes a fixing plate, one end of which is fixedly connected to the grading box, and one end of the fixing plate is provided with an elastic support strip.

[0011] Preferably, the elastic support bar is a wavy elastic metal bar, with one end connected to the sieve plate and the other end connected to the fixed plate.

[0012] This utility model provides a pretreatment and classification device for scheelite ore before it enters the mill, which has the following beneficial effects: 1. A pretreatment and classification device for scheelite ore before it enters the mill, wherein a lifting mechanism is provided to increase the vibration amplitude of the first screening plate and the second screening plate, accelerate the rolling speed of the ore at the upper end of the first screening plate and the second screening plate, shorten the ore classification time, and improve the classification efficiency of scheelite ore.

[0013] 2. A pretreatment and classification device for scheelite ore before it enters the mill, wherein two sets of inclined guide plates are set at both ends inside the classification box, which can guide the falling ore to avoid the ore remaining inside the classification box, thus making the ore raw material discharge cleaner. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the grading box of this utility model; Figure 4 This is a schematic diagram of the lifting mechanism of this utility model; Figure 5 This utility model Figure 3 Enlarged diagram of point A in the middle.

[0016] Legend: 1. Grading box; 2. Support frame; 3. Feed inlet; 4. First screening plate; 5. Second screening plate; 6. Elastic support assembly; 7. First discharge port; 8. Second discharge port; 9. Third discharge port; 10. Drive motor; 11. Lifting mechanism; 12. Guide plate; 13. Rotating seat; 14. Rotating rod; 15. Slide groove; 16. Sliding block; 17. Telescopic spring; 18. Moving rod; 19. Impact ball; 20. Fixed plate; 21. Elastic support bar. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Example: A pretreatment and classification device for scheelite ore before it enters the mill, such as... Figure 1 - Figure 5 As shown, the system includes a grading box 1, which is a rectangular hollow shell. Support frames 2 are installed at each of the four lower corners of the grading box 1, with their upper ends fixedly connected to the grading box 1. A feed inlet 3 is located on one side of the upper end of the grading box 1, with its lower end fixedly connected to the grading box 1. The internal cavity of the feed inlet 3 communicates with the internal cavity of the grading box 1. A first screening plate 4 is located in the center of the grading box 1, and a second screening plate 5 is located below the first screening plate 4. The first screening plate 4 and the second screening plate 5 are installed at an angle, and the second screening plate 5 is parallel to the first screening plate 4. A screening cavity is reserved between the plates 5. The mesh size of the screens at the upper ends of the first screening plate 4 and the second screening plate 5 are different. The mesh size of the screen inside the first screening plate 4 can be selected from 20 to 40 mesh, and the mesh size of the screen inside the second screening plate 5 can be selected from 60 to 100 mesh. Elastic support components 6 are respectively provided on both sides of the lower end of the first screening plate 4 and the second screening plate 5. One end of the elastic support component 6 is fixedly connected to the inner wall of the grading box 1, and the other end of the elastic support component 6 is connected to the screening plate. A first discharge port 7 is provided on one side of the outer end of the grading box 1. The first discharge port 7 is fixedly connected to the grading box 1 and the first screening plate 5 is fixedly connected to the first screening plate 5. The upper cavity of plate 4 is connected to the first discharge port 7. A second discharge port 8 is provided at the lower end of the first discharge port 7. The second discharge port 8 is fixedly connected to the grading box 1 and is connected to the upper cavity of the second screening plate 5. A third discharge port 9 is provided at the lower center of the grading box 1. The third discharge port 9 is fixedly connected to the grading box 1 and is connected to the lower cavity of the second screening plate 5 inside the grading box 1. A drive motor 10 is provided at one end of the outer side of the grading box 1. The drive motor 10 is fixedly connected to the grading box 1 by bolts and is linearly connected to an external power source through wires. The interior of the grading box 1 is relatively... A lifting mechanism 11 is provided at the output end of the drive motor 10. The lifting mechanism 11 is installed between the first screening plate 4 and the second screening plate 5. One end of the lifting mechanism 11 is fixedly connected to the output end of the drive motor 10. Two sets of guide plates 12 are provided at the bottom of the inside of the grading box 1. The guide plates 12 are rigid rectangular plates. The two sets of guide plates 12 are installed in an inverted V-shape on both sides of the upper end of the third discharge port 9. One end of the guide plate 12 is fixedly connected to the inner wall of the grading box 1. In use, the guide plates 12 can guide the falling ore, accelerate the falling speed of the ore, and prevent the ore from remaining inside the grading box 1.

[0019] Furthermore, the lifting mechanism 11 includes a rotating seat 13, which is a cross-shaped strip frame. A rotating rod 14 is provided at one end of the rotating seat 13 near the drive motor 10. One end of the rotating rod 14 is fixedly connected to the rotating seat 13, and the other end is fixedly connected to the output end of the drive motor 10. In use, the output end of the drive motor 10 can drive the rotating seat 13 to rotate through the rotating rod 14. Each of the four corners of the rotating seat 13 is provided with a sliding groove 15, which is a strip-shaped groove. A slider 16 is provided inside the sliding groove 15. The slider 16 is a cylindrical hard metal seat and is slidably installed inside the sliding groove 15. A telescopic spring 17 is provided at one end of the slider 16, which is fixedly connected to the slider 16 at one end and fixedly connected to the inner wall of the sliding groove 15 at the other end. A moving rod 18 is provided at one end of the slider 16, which is an L-shaped hard metal rod. One end of the moving rod 18 is fixedly connected to the slider 16. An impact ball 19 is provided at the end of the moving rod 18 away from the slider 16. The impact ball 19 is a spherical soft wear-resistant rubber block. One end of the impact ball 19 is fixedly connected to the moving rod 18. In use, the power supply of the drive motor 10 can be turned on. The output end of the drive motor 10 can drive the rotating seat 13 to rotate through the rotating rod 14. As the rotation speed of the rotating seat 13 increases, when the centrifugal force on the slider 16 inside the rotating seat 13 is greater than the elastic force of the extension spring 17, the slider 16 will slide outward along the slide groove 15. During the movement, the slider 16 will drive the impact ball 19 to move through the moving rod 18. The impact ball 19 contacts the first screening plate 4 or the second screening plate 5 during rotation, increasing the vibration amplitude of the first screening plate 4 or the second screening plate 5, thereby shaking off the ore at the top of the first screening plate 4 or the second screening plate 5 and accelerating the grading efficiency of scheelite ore.

[0020] Furthermore, the elastic support assembly 6 includes a fixed plate 20, which is a rigid strip plate. One end of the fixed plate 20 is fixedly connected to the inner wall of the grading box 1. A gap is reserved between the fixed plate 20 and the sieve plate. An elastic support strip 21 is provided at the end of the fixed plate 20 near the sieve plate. The elastic support strip 21 is a wavy elastic metal strip. One end of the elastic support strip 21 is fixedly connected to the sieve plate, and the other end of the elastic support strip 21 is fixedly connected to the fixed plate 20.

[0021] It should be noted that this utility model is a pretreatment and classification device for scheelite ore before it enters the mill. In use, the ore to be processed is fed into the classification box 1 through the feed inlet 3. The ore entering the classification box 1 falls onto the upper end of the first screening plate 4 and rolls along it. Some of the ore is discharged through the first discharge outlet 7 for collection, while some passes through the first screening plate 4 and falls onto the upper end of the second screening plate 5. The ore falling onto the upper end of the second screening plate 5 rolls along it for classification, and some is discharged through the second discharge outlet 8 for collection. The remaining smaller ore falls into the second screening plate. Below 5, the material is discharged and collected through the third outlet 9. During the ore raw material classification process, the power supply of the drive motor 10 can be turned on. The output of the drive motor 10 will drive the rotating seat 13 to rotate through the rotating rod 14. During the rotation of the rotating seat 13, when the centrifugal force on the slider 16 inside the rotating seat 13 is greater than the elastic force of the extension spring 17, the slider 16 will slide outward along the slide groove 15. During the movement, the slider 16 will drive the impact ball 19 to move through the moving rod 18. The impact ball 19 contacts the first screening plate 4 or the second screening plate 5 during rotation, increasing the vibration amplitude of the first screening plate 4 or the second screening plate 5 and accelerating the classification speed of scheelite ore. By setting the lifting mechanism 11, the vibration amplitude of the first screening plate 4 and the second screening plate 5 can be increased, the rolling speed of the ore at the upper end of the first screening plate 4 and the second screening plate 5 can be accelerated, the ore classification time can be shortened, and the classification efficiency of scheelite ore can be improved. By setting two sets of inclined guide plates 12 at both ends inside the grading box 1, the falling ore can be guided by the guide plates 12 to avoid the ore remaining inside the grading box 1, so that the ore raw material discharge is cleaner.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pretreatment and classification device for scheelite ore before milling, comprising a classification box (1) and a support frame (2), wherein the upper end of the classification box (1) is provided with a feed inlet (3), the interior of the classification box (1) is provided with a first screening plate (4) and a second screening plate (5), one end of the classification box (1) is provided with a first discharge port (7), the lower end of the first discharge port (7) is provided with a second discharge port (8), and the lower end of the classification box (1) is provided with a third discharge port (9), characterized in that: The first screening plate (4) and the second screening plate (5) are respectively provided with elastic support components (6) at their lower ends. The grading box (1) is provided with a drive motor (10) at one end. The grading box (1) is provided with a lifting mechanism (11) inside. One end of the lifting mechanism (11) is connected to the drive motor (10). The lifting mechanism (11) includes a rotating seat (13). The rotating seat (13) is a cross-shaped strip frame. One end of the rotating seat (13) is provided with a rotating rod (14). (14) One end is fixedly connected to the rotating seat (13), and one end of the rotating rod (14) is fixedly connected to the drive motor (10). The rotating seat (13) is provided with a sliding groove (15), and a slider (16) is provided inside the sliding groove (15). The slider (16) is slidably installed inside the sliding groove (15). One end of the slider (16) is provided with a telescopic spring (17), and one end of the slider (16) is provided with a moving rod (18). One end of the moving rod (18) is provided with an impact ball (19).

2. The pretreatment and classification device for scheelite ore before milling according to claim 1, characterized in that: The movable rod (18) is an L-shaped hard metal rod, and one end of the movable rod (18) is fixedly connected to the slider (16).

3. The pretreatment and classification device for scheelite ore before milling according to claim 1, characterized in that: The impact ball (19) is a spherical soft wear-resistant rubber block, and one end of the impact ball (19) is fixedly connected to the moving rod (18).

4. The pretreatment and classification device for scheelite ore before milling according to claim 1, characterized in that: The first screening plate (4) and the second screening plate (5) are installed at an angle, and the first screening plate (4) and the second screening plate (5) have different screening mesh sizes.

5. The pretreatment and classification device for scheelite ore before milling according to claim 1, characterized in that: The grading box (1) is provided with two sets of guide plates (12). The two sets of guide plates (12) are installed at an inverted V-shape. One end of the guide plate (12) is fixedly connected to the grading box (1).

6. The pretreatment and classification device for scheelite ore before milling according to claim 1, characterized in that: The elastic support assembly (6) includes a fixing plate (20), one end of which is fixedly connected to the grading box (1), and one end of which is provided with an elastic support strip (21).

7. The pretreatment and classification device for scheelite ore before milling according to claim 6, characterized in that: The elastic support bar (21) is a wavy elastic metal bar. One end of the elastic support bar (21) is connected to the sieve plate, and the other end of the elastic support bar (21) is connected to the fixed plate (20).

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