Screening device for gold ore dressing

Abstract

The utility model relates to the technical field of ore screening devices, in particular to a gold ore beneficiation screening device which comprises a screen body, a plurality of screen holes are formed in the top face of the screen body and are in a rectangular array in the edge direction of the screen body, fixing transverse rods are symmetrically clamped to the two sides of the screen body, and the fixing transverse rods are arranged on the top face of the screen body. A plurality of linkage side plates are vertically and fixedly connected to the side walls, away from each other, of the two fixed cross rods; the screen body is fixedly installed through mutual cooperation of the fixing cross rods, ore particles passing through the screen body are screened under overall vibration cooperation of the screen holes and the screen body, the ore particles reaching the standard move downwards, and the ore particles not reaching the standard are recycled and then subjected to secondary processing; and the rotating roller capable of rotating and moving can eject and clean the screen holes one by one through the ejector pin, and the situation that the efficiency of the screen body on the screen holes is reduced due to the fact that the screen holes are blocked by ore particles is prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of ore screening devices, specifically a screening device for gold ore beneficiation. Background Technology

[0002] Gold ore refers to gold-bearing ore extracted from mines by human or mechanical means. It also contains other metallic impurities. After being extracted, gold ore is first crushed by a crushing device. The crushed ore particles will have certain differences in size. Ore of different sizes needs to be screened by a screening device before it can be processed further.

[0003] Currently, existing ore screening devices mainly include vibrating screens. Ore particles are placed on the vibrating screen on an inclined table, and the vibration of the screen causes ore particles that meet the specifications to fall. Particles that cannot pass through the screen mesh are recycled for secondary processing. However, during the process of screening ore particles by vibration, there may be situations where ore particles of the same specifications as the screen mesh holes block the holes. When the number of blocked screen holes is large, the screening efficiency of the screen will be reduced.

[0004] Therefore, a screening device for gold ore beneficiation is proposed to address the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies and solve the problem that during the vibration screening of ore particles, ore particles of the same size as the screen holes may clog the holes, and that the screening efficiency of the screen will be reduced when a large number of clogged screen holes are present, a screening device for gold ore beneficiation is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A screening device for gold ore beneficiation according to this utility model includes a screen body. The top surface of the screen body has multiple screen holes arranged in a rectangular array along the edge of the screen body. Fixed crossbars are symmetrically mounted on both sides of the screen body. Multiple linkage side plates are vertically fixed to each of the two fixed crossbars away from each other and away from the side walls. The multiple linkage side plates are equidistantly installed along the side of the fixed crossbars. A rotating roller is arranged below the fixed crossbars. Multiple pins are fixed to the outer periphery of the rotating roller. One end of the multiple pins in the same row is located inside the multiple screen holes in the same row. One end of the rotating roller is fitted with an L-shaped lifting frame through a circular groove. The slider of one end of the L-shaped lifting frame is slidably installed in the groove of the side wall of the fixed crossbar. The other end of the rotating roller is fitted with a drive lifting frame through a circular groove. A drive assembly is arranged on the outside of the drive lifting frame.

[0007] Preferably, the drive assembly includes a reciprocating lead screw, both ends of which are fixedly connected to lead screw brackets via bearings, and both lead screw brackets are vertically fixed to the bottom surface of the fixed crossbar.

[0008] Preferably, the outer wall of the reciprocating lead screw is fitted with a linkage sleeve, and the inner wall slider of the linkage sleeve is slidably installed inside the track of the reciprocating lead screw.

[0009] Preferably, a motor is mounted on one end of the fixed crossbar via a bracket, and the output shaft of the motor is connected to the axis of the reciprocating lead screw.

[0010] Preferably, a gear is fixedly connected to the other end of the L-shaped hoisting frame, and a rack meshes with the gear on its outer upper part. The rack is fixedly connected to the bottom surface of the fixed crossbar.

[0011] Preferably, multiple support legs are provided below each of the two fixed crossbars, and each of the multiple support legs is fixedly connected to a clamping cover, and the multiple clamping covers are respectively fitted onto the outside of multiple linkage side plates.

[0012] Preferably, springs are fixedly connected to the top and bottom of the linkage side plate, and the springs are fixedly connected to the top and bottom surfaces of the inner wall of the clamping cover, respectively.

[0013] Preferably, guide plates are installed between the adjacent sidewalls of the two legs via brackets, and the conveyor body is installed below the two guide plates.

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

[0015] 1. In this utility model, the screen body is fixedly installed by the cooperation of fixed crossbars, and the ore particles passing through the screen body are screened under the overall vibration of the screen holes and the screen body. The qualified particles are moved down, and the unqualified particles are recycled for secondary processing. During the screening process of the ore particles, the rotating roller can push out and clean the screen holes one by one through the top needle, so as to prevent the ore particles from clogging the screen holes and causing the screen body to reduce its efficiency.

[0016] 2. In this utility model, the L-shaped lifting frame and the drive lifting frame are respectively installed at both ends of the rotating roller. The drive lifting frame, in cooperation with the drive assembly, provides output force for the rotating roller to reciprocate along the side of the screen body. During this process, the gear installed outside the L-shaped lifting frame can mesh with the rack, so that the rotating roller can be driven to rotate as a whole through the rack and the support leg. This prevents the rotating roller from directly contacting the screen holes during rotation, thus preventing the pin from changing the size and specifications of the screen holes during the individual cleaning process and ensuring the service life of the screen body. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a perspective view of the screen body and the fixed crossbar in this utility model;

[0020] Figure 3 This is a three-dimensional view showing the disassembled rotating roller, L-shaped lifting frame, and drive lifting frame in this utility model;

[0021] Figure 4 This is a perspective view of the cooperation between the support legs, guide plate, and conveyor body in this utility model;

[0022] Figure 5 This is a perspective view of the support leg in this utility model;

[0023] Legend:

[0024] 1. Screen body; 11. Screen holes; 2. Fixed crossbar; 21. Linkage side plate; 3. Rotating roller; 31. Top pin; 4. L-shaped lifting frame; 5. Drive lifting frame; 6. Drive assembly; 61. Reciprocating lead screw; 62. Lead screw support; 63. Linkage sleeve; 64. Motor; 41. Gear; 7. Rack; 8. Support leg; 81. Clamping cover; 82. Spring; 9. Guide plate; 10. Conveyor body. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figure 1 - Figure 5This utility model provides a screening device for gold ore beneficiation, including a screen body 1. The top surface of the screen body 1 has multiple screen holes 11 arranged in a rectangular array along the edge of the screen body 1. Fixed crossbars 2 are symmetrically mounted on both sides of the screen body 1. Multiple linkage side plates 21 are vertically fixed to each of the two fixed crossbars 2, away from each other and away from the side walls. The linkage side plates 21 are equidistantly installed along the side of the fixed crossbars 2. A rotating roller 3 is arranged below the fixed crossbars 2. Multiple ejector pins 31 are fixed to the outer periphery of the rotating roller 3. One end of each ejector pin 31 in the same row is located inside one of the screen holes 11 in the same row. One end of the rotating roller 3 is fitted with an L-shaped lifting frame 4 via a circular groove. A slider at one end of the L-shaped lifting frame 4 is slidably mounted on the side wall recess of the fixed crossbar 2. Inside the trough, the other end of the rotating roller 3 is fitted with a drive hoisting frame 5 via a circular slot. The drive hoisting frame 5 is equipped with a drive assembly 6. The fixed crossbar 2 is installed on both sides of the screen body 1. The screen holes 11 and the screen body 1 vibrate together to screen the ore particles passing through the screen body 1. The qualified particles move down, and the unqualified particles are recycled for secondary processing. During the screening of ore particles by the screen body 1, the rotating roller 3 can be pushed out and cleaned one by one by the screen holes 11 through the ejector pin 31 to prevent ore particles from clogging the screen holes 11. The fixed crossbar 2 is installed on the L-shaped hoisting frame 4 and the drive hoisting frame 5 respectively. The drive assembly 6 is installed between the fixed crossbar 2 and the drive hoisting frame 5 to provide driving force for the movement of the rotating roller 3.

[0028] For example, 1. Figure 2 and Figure 3 As shown, the drive assembly 6 includes a reciprocating lead screw 61. Both ends of the reciprocating lead screw 61 are fixedly connected to lead screw brackets 62 via bearings. Both lead screw brackets 62 are vertically fixed to the bottom surface of the fixed crossbar 2. A linkage sleeve 63 is fitted on the outer wall of the reciprocating lead screw 61. The inner wall slider of the linkage sleeve 63 is slidably installed inside the track of the reciprocating lead screw 61. A motor 64 is mounted on a bracket below one end of the fixed crossbar 2. The output shaft of the motor 64 is connected to the axis of the reciprocating lead screw 61. The reciprocating lead screw 61 is fixed below the fixed crossbar 2 via the lead screw brackets 62. The lead screw brackets 62, which are fixed inside the drive hoisting frame 5, engage with the track of the reciprocating lead screw 61 via their inner wall sliders. This allows the reciprocating lead screw 61 to drive the linkage sleeve 63 to reciprocate within the track range of the lead screw brackets 62 during rotation, thereby realizing the movement drive of the fixed crossbar 2. The motor 64 provides rotational output force to the reciprocating lead screw 61.

[0029] like Figure 1 , Figure 2 and Figure 3As shown, a gear 41 is fixed to the other end of the L-shaped lifting frame 4. A rack 7 is meshed on the upper part of the gear 41. The rack 7 is fixed to the bottom surface of the fixed crossbar 2. During the reciprocating motion of the rotating roller 3, the L-shaped lifting frame 4 moves accordingly. The L-shaped lifting frame 4 meshes with the rack 7 below the L-shaped lifting frame 4 through the gear 41. At this time, the rotating roller 3 rotates to prevent the rotating roller 3 from moving as a whole. During the cleaning process of the screen hole 11, the pin 31 comes into direct contact with the screen body 1.

[0030] like Figure 1 , Figure 4 and Figure 5 As shown, multiple support legs 8 are provided below the two fixed crossbars 2, and multiple support legs 81 are fixedly connected to each support leg 81. The multiple support legs 81 are respectively fitted onto the outside of multiple linkage side plates 21. Springs 82 are fixedly connected to the top and bottom of the linkage side plates 21. The springs 82 are fixedly connected to the top and bottom surfaces of the inner walls of the support legs 81 respectively. Guide plates 9 are installed between the adjacent side walls of the two support legs 8 through brackets. The conveyor body 10 is installed below the two guide plates 9. The support legs 8 support the entire device through the mutual engagement between the support legs 81 and the linkage side plates 21. The springs 82 filled between the linkage side plates 21 and the support legs 81 enable the fixed crossbars 2 and the screen body 1 to vibrate as a whole. They can vibrate as a whole with the cooperation of the vibration drive device. The qualified ore particles that fall through the screen holes 11 are guided by the guide plates 9 to fall onto the conveyor belt of the conveyor body 10 and are then transported by the conveyor body 10 to the next processing area of ​​the gold ore.

[0031] Working principle: Fixed crossbars 2 are installed on both sides of the screen body 1. Under the overall vibration of the screen holes 11 and the screen body 1, the ore particles passing through the screen body 1 are screened. The qualified particles move down, and the unqualified particles are recycled for secondary processing. During the screening process of the ore particles, the rotating roller 3 can push out and clean the screen holes 11 one by one through the ejector pin 31 to prevent the ore particles from clogging the screen holes 11. Fixed crossbars 2 are installed on the L-shaped lifting frame 4 and the drive lifting frame 5 respectively. The drive assembly 6 is installed between the fixed crossbars 2 and the drive lifting frame 5 to provide driving force for the movement of the rotating roller 3. The reciprocating screw 61 is fixed below the fixed crossbars 2 by the screw bracket 62. The screw bracket 62, which is fixed inside the drive lifting frame 5, is engaged with the upper track of the reciprocating screw 61 through its inner wall slider. This allows the reciprocating screw 61 to drive the linkage sleeve 63 to reciprocate within the track range of the screw bracket 62 during the rotation of the reciprocating screw 61. The movement drives the fixed crossbar 2 to move, while the motor 64 provides rotational output force to the reciprocating screw 61. During the reciprocating motion of the rotating roller 3, the L-shaped lifting frame 4 moves accordingly. The L-shaped lifting frame 4 meshes with the rack 7 below the L-shaped lifting frame 4 through the gear 41. At this time, the rotating roller 3 rotates to prevent the rotating roller 3 from moving as a whole. During the cleaning process of the screen hole 11, the pin 31 comes into direct contact with the screen body 1. The support leg 8 supports the whole device through the mutual engagement between the clamping cover 81 and the linkage side plate 21. The spring 82 filled between the linkage side plate 21 and the clamping cover 81 enables the fixed crossbar 2 and the screen body 1 to vibrate as a whole, and can vibrate as a whole with the cooperation of the vibration drive device. The qualified ore particles that fall from the screen hole 11 are guided by the guide plate 9 to fall onto the conveyor belt of the conveyor body 10, and are then transported by the conveyor body 10 to the next processing area of ​​the gold ore.

[0032] 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 screening device for the beneficiation of gold ores, characterised in that: The utility model provides a kind of screen body (1), the top surface of screen body (1) is equipped with multiple screen holes (11), multiple screen holes (11) are rectangular array along the edge direction of screen body (1), two sides of screen body (1) are symmetrically equipped with fixed crossbar (2), multiple linkage side plates (21) are vertically fixed to the side wall of two fixed crossbar (2) and are away from each other, multiple linkage side plates (21) are equidistantly installed along the side direction of fixed crossbar (2), rotating roller (3) is arranged below fixed crossbar (2), multiple thimbles (31) are fixed to the outer periphery of rotating roller (3), one end of multiple same row thimbles (31) is located inside multiple same row screen holes (11) respectively, one end of rotating roller (3) is equipped with L-shaped lifting frame (4) by circular groove, one end of L-shaped lifting frame (4) is slidingly installed in the side wall groove of fixed crossbar (2), the other end of rotating roller (3) is equipped with driving lifting frame (5) by circular groove, driving assembly (6) is arranged on the outside of driving lifting frame (5).

2. A screening device for gold ore beneficiation according to claim 1, characterized in that: The driving assembly (6) includes a reciprocating screw rod (61), both ends of the reciprocating screw rod (61) are fixedly connected with a screw rod bracket (62) through a bearing, and both the screw rod brackets (62) are fixedly connected to the bottom surface of the fixed crossbar (2).

3. A screening device for gold ore beneficiation according to claim 2, characterised in that: The outer wall of the reciprocating screw rod (61) is sleeved with a linkage sleeve (63), and the sliding block on the inner wall of the linkage sleeve (63) is slidingly installed in the track of the reciprocating screw rod (61).

4. A screening device for use in gold ore beneficiation according to claim 3, characterized in that: One end of the fixed crossbar (2) is provided with a motor (64) through a bracket, and the output shaft of the motor (64) is connected with the axis of the reciprocating screw rod (61).

5. A screening device for use in the beneficiation of gold ores as claimed in claim 4 wherein: The other end of the L-shaped lifting frame (4) is fixedly connected with a gear (41), the gear (41) is engaged with a rack (7) on the outside and top, and the rack (7) is fixedly connected to the bottom surface of the fixed crossbar (2).

6. A screening device for gold ore beneficiation according to claim 5, characterised in that: The bottom surface of the fixed crossbar (2) is provided with a plurality of supporting legs (8), and the plurality of supporting legs (8) are fixedly connected with a clamping cover (81), and the plurality of clamping covers (81) are sleeved with the plurality of linkage side plates (21) on the outside.

7. A screening device for gold ore beneficiation according to claim 6, characterised in that: The top and bottom of the linkage side plate (21) are fixedly connected with a spring (82), and the spring (82) is fixedly connected with the inner wall top surface and bottom surface of the clamping cover (81).

8. A screening device for gold ore beneficiation according to claim 7, characterised in that: The adjacent side walls of the two sides of the supporting leg (8) are both provided with a guide plate (9) through a bracket, and the bottom of the two guide plates (9) is provided with a conveyor body (10).

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