Multifunctional ball mill facilitating feeding

Abstract

The present application relates to the field of ball mill, especially to a multifunctional ball mill facilitating feeding, which comprises an arc-shaped plate and a connecting plate in a rotating cabin, and the arc-shaped plate and the connecting plate jointly constitute a ring-shaped cabin structure capable of switching between an expanded state and a contracted state, in the expanded state, coarse particles are formed by large barrel diameter and high speed crushing treatment of the ore, and then in the contracted state, fine particles are formed by small barrel diameter and low speed grinding treatment of the ore, only a single device is needed to ensure that the final material particle size meets the process requirements, in addition, a ring-shaped buffer pad and a shock absorbing pillar are further provided to reduce the noise generated when the steel balls continuously fall on the arc-shaped plate and the connecting plate and directly impact. The multifunctional ball mill facilitating feeding solves the technical problems of large occupied area, large noise and excessive energy consumption of the multi-stage ball mill series connection grading treatment technology which needs to be matched with various grading conveying equipment.

Description

Technical Field

[0001] This invention relates to the field of ball mills, and more particularly to a multifunctional ball mill that facilitates material feeding. Background Technology

[0002] Traditional ball mills employ a single-cylinder, equal-diameter design, where crushing and grinding processes occur within the same cylinder. However, because crushing requires steel balls to roll at high speeds in a large-diameter cylinder, while grinding requires them to roll at low speeds in a small-diameter cylinder, it's difficult to simultaneously optimize the process parameters for both crushing and grinding. This results in high energy consumption and low efficiency. To address this issue, a two- or even three-stage multi-stage ball mill series classification technology has been developed. The first stage ball mill uses a large-diameter, high-speed crushing process to form coarse particles, followed by a second stage ball mill using a small-diameter, low-speed grinding process to form fine particles. This ensures that the final ore particle size meets the process requirements. However, this multi-stage ball mill series classification technology not only requires various classification and conveying equipment, occupying a large workshop area, but also generates significant noise and results in high energy consumption. Summary of the Invention

[0003] To overcome the drawbacks of multi-stage ball mill series classification technology, which requires multiple classification and conveying devices, resulting in large footprint, high noise, and excessive energy consumption, this invention provides a multi-functional ball mill that facilitates material feeding.

[0004] The technical solution of this invention is as follows: A multi-functional ball mill for easy feeding, comprising a mounting frame, a variable speed motor, a drive gear, a ring gear, a feed end, a feed cylinder, a discharge screen, a vortex chamber, an arc plate, a connecting plate, and an electrically controlled lifting screw; the feed end and the discharge screen are rotatably connected to the mounting frame in sequence; a vortex chamber is fixedly connected between the feed end and the discharge screen; a variable speed motor is mounted on the mounting frame; a drive gear is fixedly connected to the output shaft of the variable speed motor; a ring gear is fixedly connected to the vortex chamber; the drive gear and the ring gear... Gears mesh; a feed cylinder is fixedly connected to the feed end; the feed cylinder has several feed ports for intermittent feeding; several arc-shaped plates are equidistantly slidably connected inside the vortex chamber; a connecting plate is fixedly connected to the arc-shaped plate, and the connecting plate is located between two adjacent arc-shaped plates, and the connecting plate is slidably connected to another arc-shaped plate; all the arc-shaped plates and connecting plates together form an annular chamber structure that can switch between an expanded state and a retracted state, and the annular chamber is filled with steel balls; several electrically controlled lifting screws that drive the arc-shaped plates to move are installed inside the vortex chamber.

[0005] More preferably, the feed cylinder has a liquid passage structure that allows only water to flow through.

[0006] More preferably, the number of feeding ports corresponds to the number of arc-shaped plates; the arc-shaped plates are fixed with inserts, and the inserts are aligned vertically with the corresponding feeding ports on the feed cylinder.

[0007] More preferably, the insert is made of a cushioning rubber material.

[0008] More preferably, the curved plate has a sloping surface structure on the side facing the direction of rotation.

[0009] More preferably, a ring-shaped liquid storage tank structure is formed between the feed end and the mounting frame; the mounting frame has a liquid inlet structure that connects to the ring-shaped liquid storage tank; the feed end has a liquid delivery channel structure corresponding to the number of arc plates; the arc plates have a cavity structure; a liquid delivery pipe that connects to the cavity structure is fixed to the arc plate; the liquid delivery pipe connects to the corresponding liquid delivery channel; and a spray hole structure that connects to the cavity structure is formed on the arc plate.

[0010] More preferably, all the spray holes on the arc plate are located on the slope surface, and the outlet of the spray holes faces the corresponding connecting plate.

[0011] More preferably, the vortex chamber is fixed with several shock-absorbing struts for providing shock-absorbing support to the curved plate.

[0012] More preferably, all shock-absorbing struts are connected together by an annular buffer pad, and the annular buffer pad is in close contact with the outer surface of all curved plates and all connecting plates.

[0013] More preferably, all shock-absorbing struts and annular buffer pads are made of corrosion-resistant rubber.

[0014] Compared with the prior art, the present invention has the following advantages: The multi-functional ball mill described in this invention facilitates material feeding. A vortex chamber is welded between the feed end and the discharge end. The feed cylinder at the feed end is provided with multiple feed inlets for easy intermittent feeding. Multiple arc-shaped plates and multiple connecting plates are alternately connected inside the vortex chamber. All the arc-shaped plates and connecting plates together form an annular chamber structure that can switch between an expanded state and a contracted state. In the expanded state, the ore is crushed at high speed with a large cylinder diameter to form coarse particles. Then, in the contracted state, the ore is ground at low speed with a small cylinder diameter to form fine particles. Only a single piece of equipment is needed to ensure that the final material particle size meets the process requirements. In addition, an annular buffer pad and shock-absorbing support are provided to reduce the noise generated when steel balls continuously fall onto the arc-shaped plates and connecting plates. The invention solves the technical problems of multi-stage ball mill series classification technology, which requires multiple classification and conveying equipment, resulting in large footprint, high noise, and excessive energy consumption. Attached Figure Description

[0015] Figure 1 This is a perspective view of a multifunctional ball mill for easy material feeding according to the present invention; Figure 2 This is a three-dimensional cross-sectional view of the vortex chamber of a multifunctional ball mill that facilitates material feeding according to the present invention; Figure 3This is a perspective view of the feed end of a multifunctional ball mill that facilitates material feeding, according to the present invention. Figure 4 This is a perspective view of the feed cylinder of a multifunctional ball mill for easy material feeding according to the present invention; Figure 5 This is a perspective view of the arc-shaped plate and connecting plate of a multifunctional ball mill for easy material feeding according to the present invention; Figure 6 This is an unfolded view of the arc-shaped plate and connecting plate of a multifunctional ball mill for easy feeding according to the present invention; Figure 7 This is a diagram showing the contracted state of the arc-shaped plate and connecting plate of a multifunctional ball mill for easy material feeding according to the present invention.

[0016] The above-mentioned attached drawings include the following reference numerals: 1-mounting bracket, 101-liquid inlet, 11-variable speed motor, 12-drive gear, 13-ring gear, 21-feeding end, 211-feeding cylinder, 2101-feeding port, 2102-liquid passage hole, 2103-ring liquid storage tank, 2104-liquid delivery channel, 22-discharge screen, 23-vortex chamber, 31-arc plate, 3101-slope surface, 3102-spray hole, 32-connecting plate, 33-electrically controlled lifting screw, 34-insertion block, 35-liquid delivery pipe, 41-shock absorber support, 42-ring buffer pad. Detailed Implementation

[0017] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0018] Example 1: This example provides a multi-functional ball mill that facilitates material feeding, such as... Figures 1-5As shown, the device includes a mounting frame 1, a variable speed motor 11, a drive gear 12, a ring gear 13, a feed end 21, a feed cylinder 211, a discharge screen 22, a vortex chamber 23, an arc plate 31, a connecting plate 32, and an electrically controlled lifting screw 33. The feed end 21 and the discharge screen 22 are rotatably connected to the mounting frame 1. A vortex chamber 23 is welded between the feed end 21 and the discharge screen 22. The variable speed motor 11 is mounted on the mounting frame 1. The output shaft of the variable speed motor 11 is fixedly connected to the drive gear 12. The ring gear 13 is fixedly connected to the vortex chamber 23. The drive gear 12 meshes with the ring gear 13. The feed cylinder 211 is fixedly connected to the feed end 21. The feed cylinder 211 has several intermittent feeding ports 2101. The feed cylinder 211 has liquid passage holes 2102 that only allow water to flow through. The inner wall of the rotating chamber 23 is equidistantly connected with several arc-shaped plates 31. Each arc-shaped plate 31 has a ramp surface 3101 structure on the side facing the direction of rotation and the side away from the direction of rotation. During rotation, the arc-shaped plate 31 can push the steel ball upward through the ramp surface 3101 structure, and then the steel ball falls downward under its own gravity, improving the efficiency of rolling the steel ball. Each arc-shaped plate 31 is fixedly connected with a connecting plate 32, and the connecting plate 32 is located between two adjacent arc-shaped plates 31. The connecting plate 32 is slidably connected to another arc-shaped plate 31. All the arc-shaped plates 31 and all the connecting plates 32 together form an annular chamber structure that can switch between an expanded state and a retracted state. The annular chamber is filled with steel balls. Several electrically controlled lifting screws 33 are installed inside the rotating chamber 23. Each electrically controlled lifting screw 33 is connected to a corresponding arc-shaped plate 31.

[0019] like Figure 3 and Figure 4 As shown, the number of feeding ports 2101 corresponds to the number of arc plates 31; each arc plate 31 is fixed with a plug 34, and the plug 34 is aligned vertically with the corresponding feeding port 2101 on the feeding cylinder 211; all plugs 34 are made of buffer rubber material, and when the ore fed into the feeding cylinder 211 continuously impacts the plug 34, the buffer rubber material plug 34 can reduce the impact force generated by the collision with the ore.

[0020] The coarse particle processing steps of a multi-functional ball mill that facilitates material feeding in this embodiment are as follows.

[0021] First, mineral material and water are continuously fed into the feed cylinder 211 at the feed end 21. The water flows directly through the liquid passage 2102 and each feed port 2101 into the vortex chamber 23. The water in the vortex chamber 23 flows out from the discharge screen 22. At the same time, the variable speed motor 11 drives the drive gear 12 to rotate at high speed. The drive gear 12 meshes with the ring gear 13, driving the vortex chamber 23 and the feed end 21 and discharge screen 22 connected to it to rotate. The vortex chamber 23 drives the initial internal structure to rotate as follows: Figure 6The arc-shaped plate 31 and the connecting plate 32, in their unfolded state, rotate at high speed, causing the annular chamber formed by the arc-shaped plate 31 and the connecting plate 32 to drive the steel ball to roll at high speed in a large-diameter state. At the same time, the feeding end 21 drives the feeding cylinder 211 to rotate at high speed. Whenever any feeding port 2101 in the feeding cylinder 211 is facing downwards, the ore fed into the feeding cylinder 211 falls downwards from the feeding port 2101 into the vortex chamber 23, realizing the intermittent feeding of ore into the vortex chamber 23 and preventing the ore from leaving the vortex chamber 23. There is a large accumulation phenomenon. At the same time, the vortex chamber 23 drives the ore to roll at high speed with the steel balls. The steel balls that continuously fall downwards crush the ore into coarse particles through the large-diameter, high-speed crushing process. Meanwhile, the water flowing through the vortex chamber 23 continuously washes the ore towards the discharge screen 22, so that the ore is evenly distributed in the vortex chamber 23. Thus, the ore is evenly processed into coarse particles in the vortex chamber 23. At this time, the particle size of the coarse ore is much larger than the screen structure of the discharge screen 22, and the coarse ore cannot flow out of the discharge screen 22 with the water flow.

[0022] The fine particle processing steps of a multi-functional ball mill that facilitates material feeding in this embodiment are as follows.

[0023] After the steel ball crushes most of the ore in the vortex chamber 23 into uniformly sized coarse particles, the variable speed motor 11 switches from high-speed rotation to low-speed rotation. Simultaneously, the electrically controlled lifting screw 33 moves its connected arc-shaped plate 31 towards the center of the vortex chamber 23, and the connecting plate 32 is retracted into its connected arc-shaped plate 31, causing the annular chamber to switch from an expanded state to a retracted state. At this time, the vortex chamber 23 causes its interior to... Figure 7 The arc-shaped plate 31 and the connecting plate 32, in their contracted state, rotate at low speed. The annular chamber formed by the arc-shaped plate 31 and the connecting plate 32 drives the steel balls to roll at low speed in a small-diameter state. At the same time, the arc-shaped plate 31 drives the insert block 34 to insert into the corresponding feeding port 2101 in the feeding end 21, preventing the ore subsequently fed into the feeding end 21 from entering the vortex chamber 23 through the feeding port 2101. As the vortex chamber 23 drives the ore inside to roll at low speed with the steel balls, the ore is ground at low speed by the continuously falling steel balls in a small-diameter chamber. The process forms fine particles, while the water flowing continuously through the vortex chamber 23 continuously washes the ore towards the discharge screen 22, allowing the fine ore particles that meet the particle size requirements to flow outward from the discharge screen 22 with the water flow. Since the annular chamber retains a complete circular cross-section chamber structure after switching from the expanded state to the contracted state, the contracted annular chamber can continuously drive the steel balls to flip up and fall down, allowing the continuously falling steel balls to continuously grind the ore.

[0024] After most of the fine-grained ore particles meet the size requirements and flow out of the discharge screen 22 with the water flow, the two-stage ball milling process of this batch of ore can be completed. The two-stage ball milling process of the next batch of ore can be carried out in the same way. Only a single piece of equipment is needed to ensure that the final material particle size meets the process requirements.

[0025] Example 2, based on Example 1 above, as follows: Figures 1-5 As shown, in this embodiment, a ring-shaped liquid storage tank 2103 structure is formed between the feed end 21 and the mounting frame 1; the mounting frame 1 is provided with a liquid inlet 101 structure that connects to the ring-shaped liquid storage tank 2103, and the liquid inlet 101 structure is externally connected to a clean water conveying device; the feed end 21 is provided with a liquid delivery channel 2104 structure corresponding to the number of arc plates 31; each arc plate 31 is provided with a cavity structure; each arc plate 31 is fixed with a liquid delivery pipe 35 that connects to the cavity structure; the liquid delivery pipe 35 on each arc plate 31 is respectively connected to the corresponding liquid delivery channel 2104; each arc plate 31 has a plurality of spray holes 3102 structures that connect to the cavity structure on its slope surface 3101, and the outlet of the spray holes 3102 structures faces the corresponding connecting plate 32; the external clean water conveying device is connected to the mounting frame 1 through the mounting frame 1. The inlet 101 of the mounting frame 1 continuously supplies clean water to the annular storage tank 2103. The clean water flows into the cavity structure of the corresponding arc plate 31 through each infusion channel 2104 and infusion pipe 35. The clean water then sprays outward from the corresponding spray hole 3102 structure onto the surface of the connecting plate 32. The clean water continuously washes away the mineral debris remaining on the surface of the connecting plate 32, effectively reducing the residue of mineral debris on the surface of the connecting plate 32. When all the arc plates 31 and all the connecting plates 32 are switched from the unfolded state to the retracted state, the connecting plate 32 will be gradually hidden into the corresponding arc plate 31. At this time, the clean water continuously sprayed onto the surface of the connecting plate 32 can wash away the mineral debris remaining on its surface in time, avoiding the phenomenon that a large amount of mineral debris is collected into the arc plate 31 along with the connecting plate 32.

[0026] Example 3, based on Example 1 above, as follows: Figures 1-5As shown, in this embodiment, several shock-absorbing struts 41 are fixedly connected inside the vortex chamber 23, and all shock-absorbing struts 41 are made of elastic shock-absorbing material; all shock-absorbing struts 41 are connected together by annular buffer pads 42, and the annular buffer pads 42 are in close contact with the outer surfaces of all arc-shaped plates 31 and all connecting plates 32; all shock-absorbing struts 41 and annular buffer pads 42 are made of corrosion-resistant rubber material; when all arc-shaped plates 31 and all connecting plates 32 are in the unfolded state, due to the high height from which the steel ball falls, the impact force of the steel ball hitting the arc-shaped plates 31 and connecting plates 32 is large. At this time, the annular buffer pads 42, together with the shock-absorbing struts 41, absorb most of the impact force on the arc-shaped plates 31 and connecting plates 32, which not only reduces the impact damage caused by the continuous falling of the steel ball to the arc-shaped plates 31 and connecting plates 32, but also reduces the noise generated by the collision when the steel ball continuously falls to the arc-shaped plates 31 and connecting plates 32 and makes a hard landing.

[0027] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A multi-functional ball mill that facilitates feeding, comprising a mounting frame (1); The mounting frame (1) is rotatably connected to the feed end (21) and the discharge screen (22); the feed end (21) and the discharge screen (22) are fixedly connected to a vortex chamber (23); the mounting frame (1) is equipped with a variable speed motor (11); the output shaft of the variable speed motor (11) is fixedly connected to a drive gear (12); the vortex chamber (23) is fixedly connected to a ring gear (13); the drive gear (12) meshes with the ring gear (13); Its features are: It also includes a feed cylinder (211); A feed cylinder (211) is fixedly connected to the feed end (21); several feed ports (2101) for intermittent feeding are opened on the feed cylinder (211); several arc plates (31) are equidistantly slidably connected inside the vortex chamber (23); a connecting plate (32) is fixedly connected to each arc plate (31), and the connecting plate (32) is located between two adjacent arc plates (31), and the connecting plate (32) is slidably connected to another arc plate (31); all the arc plates (31) and the connecting plate (32) together constitute an annular chamber structure that can switch between unfolded and retracted states, and the annular chamber is filled with steel balls; several electrically controlled lifting screws (33) that drive the arc plates (31) to move are installed inside the vortex chamber (23).

2. The multi-functional ball mill for easy material feeding according to claim 1, characterized in that: The feed cylinder (211) has a liquid passage hole (2102) structure that allows only water to flow through.

3. A multi-functional ball mill for easy material feeding according to claim 2, characterized in that: The number of feeding ports (2101) corresponds to the number of arc plates (31); the arc plates (31) are fixed with inserts (34), and the inserts (34) are aligned vertically with the corresponding feeding ports (2101) on the feed cylinder (211).

4. A multi-functional ball mill for easy material feeding according to claim 3, characterized in that: The insert (34) uses a cushioning rubber material.

5. A multi-functional ball mill for easy material feeding according to claim 1, characterized in that: The curved plate (31) has a sloping surface (3101) structure on the side facing the direction of rotation.

6. A multi-functional ball mill for easy material feeding according to claim 5, characterized in that: A ring-shaped liquid storage tank (2103) structure is opened between the feed end (21) and the mounting frame (1); the mounting frame (1) is provided with a liquid inlet (101) structure that connects to the ring-shaped liquid storage tank (2103); the feed end (21) is provided with a liquid delivery channel (2104) structure corresponding to the number of arc plates (31); the arc plate (31) is provided with a cavity structure; a liquid delivery pipe (35) that connects to the cavity structure is fixed on the arc plate (31); the liquid delivery pipe (35) connects to the corresponding liquid delivery channel (2104); the arc plate (31) is provided with a spray hole (3102) structure that connects to the cavity structure.

7. A multi-functional ball mill for easy material feeding according to claim 6, characterized in that: All the spray holes (3102) on the arc plate (31) are located on the slope surface (3101), and the outlet of the spray hole (3102) structure faces the corresponding connecting plate (32).

8. A multi-functional ball mill for easy material feeding according to any one of claims 1-7, characterized in that: Several shock-absorbing struts (41) are fixed inside the vortex chamber (23) to provide shock-absorbing support for the arc plate (31).

9. A multi-functional ball mill for easy material feeding according to claim 8, characterized in that: All the shock-absorbing struts (41) are connected together by annular buffer pads (42), and the annular buffer pads (42) are in close contact with the outer surfaces of all the curved plates (31) and all the connecting plates (32).

10. A multi-functional ball mill for easy material feeding according to claim 9, characterized in that: All shock absorber struts (41) and annular buffer pads (42) are made of corrosion-resistant rubber.

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