A crushing device for processing tailings

Abstract

The utility model belongs to ore processing technical field, concretely is a kind of crushing equipment for tailing ore processing, including the body of top opening, and the inside of body is provided with two groups of crushing mechanism from top to bottom, two groups of crushing mechanism are provided with screening assembly, the screening assembly includes the rotary cylinder of single-side opening, one end of rotary cylinder is rotatably connected with body, and the other end of rotary cylinder penetrates body and extends to outside, the outside wall of body is fixedly connected with driving motor, the driving end of driving motor penetrates body and is fixedly connected with rotary cylinder, the inside of opening is fixedly connected with guide chamber;The utility model carries out preliminary crushing by upper crushing mechanism, then by driving motor operation, the ore that does not pass the crushing is transported to the crushing mechanism below and carries out secondary crushing, without staff screening ore, re-put into machine and crush, reduce the work load of staff while improving crushing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ore processing technology, specifically a crushing device for tailings processing. Background Technology

[0002] Mine tailings are a major environmental pollution problem. Due to the increased mining intensity, more and more tailings are generated every year. Therefore, in order to alleviate the tailings pollution problem, tailings can be crushed and processed for use as landfill material or other building materials.

[0003] Existing tailings crushing equipment often results in tailings of varying sizes after crushing, with some pieces still being quite large. This necessitates screening the tailings with a screen of the required size and then crushing the larger pieces again to achieve the desired size. While this process allows for secondary crushing of the larger tailings from the first crushing, it requires manual operation to feed these tailings back into the crushing equipment, resulting in low efficiency and significant manpower and resource consumption. Therefore, this paper proposes a tailings crushing device to address these issues. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology and solve the above-mentioned technical problems, this utility model proposes a crushing equipment for tailings processing.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The crushing equipment for tailings processing of this utility model includes a machine body with an open top, and two sets of crushing mechanisms are arranged from top to bottom inside the machine body. The two sets of crushing mechanisms are equipped with a screening assembly. The screening assembly includes a rotating cylinder with an open side. One end of the rotating cylinder is rotatably connected to the machine body, and the other end of the rotating cylinder passes through the machine body and extends to the outside. A drive motor is fixedly connected to the outer wall of the machine body. The drive end of the drive motor passes through the machine body and is fixedly connected to the rotating cylinder. Openings are respectively opened on the upper and lower surfaces of the rotating cylinder. A guide chamber is fixedly connected inside the opening. A screening screen is slidably connected to one end of the guide chamber located on the rotating cylinder. A conveying plate is rotatably connected to the inner wall of the rotating cylinder through a rotating shaft.

[0006] Preferably, the outer walls of both sides of the conveyor plate are respectively provided with arc-shaped grooves centered on the rotating shaft. The surface of the grooves is slidably connected to sliders. The outer walls of the two sliders are fixedly connected to a rotating ring. The outer wall of the rotating ring is rotatably connected to a support ring. One end of the support ring is fixedly connected to the outer wall of the machine body. The conveyor plate is located between two screening screens.

[0007] Preferably, an electric push rod is installed directly below the support ring, and the drive end of the electric push rod is fixedly connected to the outer wall of the machine body.

[0008] Preferably, the lower surface of the support ring and the upper and lower surfaces of the rotating ring are both provided with openings.

[0009] Preferably, the screening screen, conveyor plate and rotating ring are equipped with screening auxiliary components. The screening screen is L-shaped. The screening auxiliary components have several elastic elements. One end of each elastic element is fixedly connected to the side wall of the screening screen, and the other end of each elastic element is fixedly connected to the outer wall of the guide chamber.

[0010] Preferably, the conveyor plate is H-shaped.

[0011] Preferably, the screening auxiliary component further includes two sets of support rods, the two ends of which are fixedly connected to the inner wall of the rotating ring, and the two support rods are symmetrically distributed along the horizontal center line of the rotating ring.

[0012] Preferably, the screening auxiliary component further includes several pull ropes, one end of which is fixedly connected to one end of the screening screen, and the other end of which is fixedly connected to the outer wall of the conveyor plate.

[0013] Preferably, the machine body has two inclined upper guide plates inside, the two upper guide plates are located between two sets of crushing mechanisms, and the outer wall of the upper guide plates is fixedly connected to the inner wall of the machine body.

[0014] Preferably, a lower guide plate is fixedly connected to the lower inner wall of the machine body, and a discharge port is opened on the lower inner wall of the machine body.

[0015] The advantages of this utility model are:

[0016] 1. This utility model uses an upper crushing mechanism for initial crushing, and then uses a drive motor to transport the unqualified ore to a lower crushing mechanism for secondary crushing. This eliminates the need for workers to screen the ore and then put it back into the machine for crushing, reducing the workload of workers and improving crushing efficiency.

[0017] 2. This utility model uses an electric push rod to drive the end to move up and down in a short distance, thereby driving the conveyor plate to rotate up and down to generate vibration, which improves the discharge efficiency of ore above the conveyor plate. When the conveyor plate rotates up and down, it drives the screening screen to slide horizontally back and forth, which improves the screening effect of ore. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial sectional view of the body of this utility model;

[0021] Figure 3 This is a schematic diagram of the material screening assembly of this utility model;

[0022] Figure 4 This is a cross-sectional view of the rotating cylinder of this utility model;

[0023] Figure 5 This is a schematic diagram of the screening auxiliary component of this utility model.

[0024] In the diagram: 1. Machine body; 2. Screening assembly; 201. Rotating drum; 202. Guide chamber; 204. Screening mesh; 205. Conveyor plate; 206. Slide chute; 207. Sliding block; 208. Rotating ring; 209. Support ring; 210. Electric push rod; 211. Opening; 3. Drive motor; 4. Screening auxiliary assembly; 41. Elastic element; 42. Support rod; 43. Pull rope; 5. Upper guide plate; 6. Lower guide plate; 7. Discharge port; 8. Crushing mechanism. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] Example 1

[0027] Please see Figure 1-4As shown, a crushing device for tailings processing includes a body 1 with a top opening. A feed hopper can be fixedly installed at the top opening of the body 1 for easy addition of ore. The feed hopper is prior art and will not be described in detail here. Inside the body 1, two sets of crushing mechanisms 8 are arranged from top to bottom. A screening assembly 2 is arranged between the two sets of crushing mechanisms 8. The screening assembly 2 includes a rotating cylinder 201 with a single-sided opening. One end of the rotating cylinder 201 is rotatably connected to the body 1, and the other end of the rotating cylinder 201 passes through the body 1 and extends to the outside. A circular opening is provided on the side wall of the body 1 for the rotating cylinder 201 to pass through. A drive motor 3 is fixedly connected to the outer side wall of the body 1. The drive end of the drive motor 3 passes through the body 1 and is fixedly connected to the rotating cylinder 201. Openings are provided on the top and bottom surfaces of the rotating cylinder 201, and a guide chamber 202 is fixedly connected inside the opening. The feed chamber 202 is horizontally slidably connected to one end of the rotating drum 201, and a screen 204 is connected to it. The inner wall of the rotating drum 201 is rotatably connected to a conveyor plate 205 via a rotating shaft. The crushing mechanism 8 includes two crushing rollers. The surface of the crushing rollers is fixedly provided with crushing teeth distributed in a ring. The two ends of the crushing rollers pass through and are rotatably connected to the machine body 1. A crushing motor is installed on one end of one of the crushing rollers. The outer wall of the crushing motor is fixedly connected to the outer wall of the machine body 1, and the drive end of the crushing motor is fixedly connected to the shaft end of the crushing roller. The ends of the two crushing rollers away from the crushing motors are respectively fixedly connected to gears, and the two gears are meshed. The crushing motor is controlled by a controller to run. The crushing motor drives one crushing roller to rotate and drives the other crushing roller to rotate through the gear transmission. When the two crushing rollers rotate, the tailings are crushed by the crushing teeth.

[0028] During operation, the feed chamber 202 and the screening screen 204 work together to intercept the crushed ore. The screening screen 204 is used to screen the ore, and the mesh size of the screening screen 204 is set according to actual usage requirements. In use, the tailings are fed into the machine body 1 by means of a conveyor, etc., and are first crushed by the crushing mechanism 8 above. After crushing, they are screened by the screening screen 204 on the upper side. The qualified crushed ore falls onto the downward-sloping feed chamber 202 and is discharged from the machine body 1 along the feed chamber 202, while the unqualified crushed ore stays on the screening screen 204 on the upper side. The controller controls the drive motor 3 to run, and the drive motor 3 drives the rotating drum. Rotating 180° causes the two sets of screening screens 204 to exchange positions. The original upper screening screen 204 rotates to the lower position, causing the ore that cannot be screened to fall onto the lower crushing mechanism 8 for secondary crushing. Meanwhile, the original lower screening screen 204 rotates to the upper position to wait for screening the ore crushed by the upper crushing mechanism 8. This device uses the drive motor 3 to transport the ore that is not up to standard to the lower crushing mechanism 8 for secondary crushing, while the ore that is up to standard is discharged from the machine body 1. This reduces the amount of secondary crushing and eliminates the need for workers to screen the ore and put it back into the machine for crushing, thus reducing the workload of workers and improving crushing efficiency.

[0029] The outer walls of both sides of the conveyor plate 205 are respectively provided with arc-shaped grooves 206 centered on the pivot. The surface of the grooves 206 is slidably connected to sliders 207. The outer walls of the two sliders 207 are fixedly connected to a rotating ring 208. The outer wall of the rotating ring 208 is rotatably connected to a support ring 209. One end of the support ring 209 is fixedly connected to the outer wall of the machine body 1. The conveyor plate 205 is located between two screening screens 204.

[0030] During operation, the rotating drum 201 rotates, causing the conveyor plate 205 to rotate. The rotation of the conveyor plate 205 causes the rotating ring 208 to rotate, switching positions. The rotating ring 208 is supported by the support ring 209. The downward tilt of the conveyor plate 205 is limited by the cooperation between the rotating ring 208 and the slider 207.

[0031] An electric push rod 210 is installed directly below the support ring 209. The drive end of the electric push rod 210 is fixedly connected to the outer wall of the machine body 1. Openings 211 are provided on the lower surface of the support ring 209 and the upper and lower surfaces of the rotating ring 208.

[0032] During operation, before the rotating drum 201 rotates, the controller controls the electric push rod 210 to retract, causing the drive end of the electric push rod 210 to exit the opening 211, thus avoiding operational interference. After the rotating drum 201 has switched positions, the controller controls the electric push rod 210 to extend. The drive end of the electric push rod 210 passes through the opening 211 and abuts against the downward-sloping conveyor plate 205. Then, through short-distance reciprocating lifting and lowering of the drive end, the conveyor plate 205 is pushed to rotate up and down to generate vibration, thereby improving the discharge efficiency of ore above the conveyor plate 205. The initial extension distance of the electric push rod 210 is the minimum distance from its drive end to the lower surface of the conveyor plate 205. The short-distance reciprocating lifting and lowering distance of the drive end is less than the length of the chute 206, and the short-distance reciprocating lifting and lowering distance of the drive end needs to be less than the distance between the contact point between the drive end and the conveyor plate 205 when the conveyor plate 205 is tilted downward and the distance between the contact point between the drive end and the conveyor plate 205 when the conveyor plate 205 is horizontal, so that the conveyor plate 205 always remains tilted downward.

[0033] Example 2

[0034] For comparison with Example 1, please refer to Figure 5As shown, this utility model provides another embodiment. A screening auxiliary component 4 is installed on the surfaces of the screening mesh 204, the conveyor plate 205, and the rotating ring 208. The screening mesh 204 is L-shaped or U-shaped. The screening auxiliary component 4 has several elastic elements 41, which can be steel leaf springs, helical springs, torsion bar springs, rubber springs, etc. In this embodiment, a helical spring is used. One end of the elastic element 41 is fixedly connected to the side wall of the screening mesh 204, and the other end is fixedly connected to the outer wall of the guide chamber 202. The screening auxiliary component 4 also includes two sets of support rods 42. Both ends of the support rods 42 are fixedly connected to the inner wall of the rotating ring 208, and the two support rods 42 are symmetrically distributed along the horizontal center line of the rotating ring 208. The screening auxiliary component 4 also includes several pull ropes 43. One end of the pull rope 43 is fixedly connected to one end of the screening mesh 204, and the other end is fixedly connected to the outer wall of the conveyor plate 205. The single vertical rotation distance of the conveyor plate 205 is less than the minimum compression length of the elastic element 41.

[0035] During operation, when the conveyor plate 205 rotates downward, the pull rope 43 pulls the screening screen 204 towards the rotating ring 208. When the conveyor plate 205 rotates upward, the elastic force of the elastic element 41 pushes the screening screen 204 to move away from the rotating ring 208 and reset. Thus, when the conveyor plate 205 rotates up and down, it drives the screening screen 204 to slide horizontally back and forth, improving the screening effect of the ore.

[0036] The conveyor plate 205 is designed in an H shape, which results in protrusions on both sides of the conveyor plate 205.

[0037] During operation, the protrusions on both sides of the conveyor plate 205 can intercept the ore, preventing it from falling into the machine body 1 from the sides of the conveyor plate 205 when it slides out.

[0038] The machine body 1 has two inclined upper guide plates 5 in the shape of an inverted V. The two upper guide plates 5 are located between the two crushing mechanisms 8, and the outer wall of the upper guide plates 5 is fixedly connected to the inner wall of the machine body 1.

[0039] During operation, unqualified ore falls from the screening screen 204 onto the upper guide plate 5, and then falls through the upper guide plate 5 to the center of the lower crushing mechanism 8 for secondary crushing.

[0040] A lower guide plate 6 is fixedly connected to the lower inner wall of the machine body 1, and a discharge port 7 is opened on the lower side wall of the machine body 1.

[0041] During operation, the crushed stone after secondary crushing slides down the lower guide plate 6 and is discharged from the discharge port 7 from the machine body 1.

[0042] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Furthermore, appropriate controllers should be selected and electrically connected to the crushing motor, drive motor 3, and electric push rod 210 according to the actual situation to meet control requirements. Specific connections and control sequences should refer to the working principle described below, where the electrical connections are completed according to the sequential working order of each electrical component. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without further explanation of electrical control.

[0043] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0044] Working principle: When in use, tailings are fed into the machine body 1 and crushed by the upper crushing mechanism 8. After crushing, the tailings are screened by the upper screening screen 204. The qualified ore falls onto the downward-sloping guide chamber 202 and is discharged from the machine body 1 along the guide chamber 202. The unqualified ore stays on the upper screening screen 204. The controller controls the drive motor 3 to run, which drives the rotating drum 201 to rotate 180°, so that the two sets of screening screens 204 exchange positions. The original upper screening screen 204 rotates to the lower position, and carries the unscreenable ore along the upper guide plate 5 to fall onto the lower crushing mechanism 8 for secondary crushing. The original lower screening screen 204 can then rotate to the upper position to wait for screening the ore crushed by the upper crushing mechanism 8. This device uses the drive motor 3 to transport the unqualified ore to the lower crushing mechanism 8 for secondary crushing. There is no need for the staff to screen the ore and put it back into the machine for crushing, which reduces the workload of the staff and improves the crushing efficiency.

[0045] Before the rotating drum 201 rotates, the controller controls the electric push rod 210 to retract, so that the driving end of the electric push rod 210 exits the opening 211 to avoid running interference. After the rotating drum 201 has switched positions, the controller controls the electric push rod 210 to extend. The driving end of the electric push rod 210 passes through the opening 211 and abuts against the conveyor plate 205. Then, the driving end moves up and down a short distance, thereby pushing the conveyor plate 205 to rotate up and down to generate vibration, thereby improving the discharge efficiency of ore above the conveyor plate 205.

[0046] When the conveyor plate 205 rotates downward, the pull rope 43 pulls the screening screen 204 towards the rotating ring 208. When the conveyor plate 205 rotates upward, the elastic force of the elastic element 41 pushes the screening screen 204 to move away from the rotating ring 208 and reset. Thus, when the conveyor plate 205 rotates up and down, it drives the screening screen 204 to slide horizontally back and forth, improving the screening effect of the ore.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] 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 claimed utility model.

Claims

1. A crushing device for processing tailings ore, comprising a top-open machine body (1), and two sets of crushing mechanisms (8) are arranged in the machine body (1) from top to bottom, characterized in that: A screening assembly (2) is provided between the two sets of crushing mechanisms (8). The screening assembly (2) includes a rotating cylinder (201) with a single-sided opening. One end of the rotating cylinder (201) is rotatably connected to the inner wall of the machine body (1), and the other end of the rotating cylinder (201) passes through the machine body (1) and extends to the outside. A drive motor (3) is fixedly connected to the outer wall of the machine body (1). The drive end of the drive motor (3) passes through the machine body (1) and is fixedly connected to the rotating cylinder (201). Openings are respectively provided on the upper and lower surfaces of the rotating cylinder (201). A guide chamber (202) is fixedly connected inside the opening. A screen (204) is slidably connected to one end of the guide chamber (202) inside the rotating cylinder (201). A conveying plate (205) is rotatably connected to the inner wall of the rotating cylinder (201) through a rotating shaft.

2. The crushing apparatus for processing tailings ore according to claim 1, characterized in that: The outer walls of the conveyor plate (205) are respectively provided with arc-shaped grooves (206) centered on the rotating shaft. The surface of the groove (206) is slidably connected to the slider (207). The outer walls of the two sliders (207) are fixedly connected to a rotating ring (208). The outer wall of the rotating ring (208) is rotatably connected to a support ring (209). One end of the support ring (209) is fixedly connected to the outer wall of the machine body (1). The conveyor plate (205) is located between two screening screens (204).

3. The crushing apparatus for processing tailings ore according to claim 2, characterized in that: An electric push rod (210) is installed directly below the support ring (209), and the drive end of the electric push rod (210) is fixedly connected to the outer wall of the body (1).

4. The crushing apparatus for processing tailings ore according to claim 2, characterized in that: The lower surface of the support ring (209) and the upper and lower surfaces of the rotating ring (208) are both provided with openings (211).

5. The crushing apparatus for processing tailings ore according to claim 2, characterized in that: Screening auxiliary components (4) are installed on the surfaces of the screening mesh (204), the conveying plate (205) and the rotating ring (208). The screening mesh (204) is L-shaped. The screening auxiliary components (4) have several elastic elements (41). One end of the elastic element (41) is fixedly connected to the side wall of the screening mesh (204), and the other end of the elastic element (41) is fixedly connected to the outer wall of the guide chamber (202).

6. The crushing apparatus for processing tailings ore according to claim 5, characterized in that: The conveyor plate (205) is H-shaped.

7. The crushing apparatus for processing tailings ore according to claim 5, characterized in that: The screening auxiliary component (4) also includes two sets of support rods (42), the two ends of which are fixedly connected to the inner wall of the rotating ring (208), and the two support rods (42) are symmetrically distributed along the horizontal center line of the rotating ring (208).

8. The crushing apparatus for processing tailings ore according to claim 5, characterized in that: The screening auxiliary component (4) also includes several pull ropes (43), one end of which is fixedly connected to one end of the screening mesh (204), and the other end of which is fixedly connected to the outer wall of the conveyor plate (205).

9. The crushing apparatus for processing tailings ore according to claim 1, characterized in that: The machine body (1) is provided with two inclined upper guide plates (5), which are located between two sets of crushing mechanisms (8), and the outer wall of the upper guide plate (5) is fixedly connected to the inner wall of the machine body (1).

10. The crushing apparatus for processing tailings ore according to claim 1, characterized in that: The lower inner wall of the machine body (1) is fixedly connected to a lower guide plate (6), and the lower inner wall of the machine body (1) is provided with a discharge port (7).

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