Ore grinding medium hoisting and adding device

Abstract

The utility model discloses an ore grinding medium hoisting and adding device which comprises a cylinder body, a blocking piece, a pull rod and a shaft sleeve, one end of the cylinder is an ore grinding medium inlet, and the other end of the cylinder is an ore grinding medium outlet; the blocking piece is located outside the barrel, the pull rod is vertically arranged in the center of the blocking piece, the pull rod penetrates through the barrel through the feeding port and the discharging port, and the end of the pull rod is located on the outer side of the barrel; a lifting ring is arranged at the end part of the pull rod and is used for lifting the cylinder body and applying a pulling force attached to the discharge hole to the blocking piece, the blocking piece and the steel ball feeding hole are relatively fixed after being lifted to the position above the steel ball feeding hole of the ball mill, and a lifting hook of the lifting equipment moves downwards, so that the blocking piece can be separated from the discharge hole of the cylinder body under the action of an ore grinding medium in the cylinder body; and the ore grinding medium in the cylinder body enters the ball mill.

Description

Technical Field

[0001] The utility model relates to the technical field of ore processing, and particularly relates to a device for hoisting and adding grinding media. Background Art

[0002] A ball mill is an important device in the ore dressing process, mainly used for grinding ores; during the grinding process, the steel balls in the ball mill will wear after working for a period of time. In order to ensure the grinding effect, new steel balls need to be continuously added into the ball mill body.

[0003] In the prior art, a hoist is used to drive a hopper to move, and the grinding balls in the hopper are moved above the steel ball adding port of the ball mill. By pouring or manually opening the blocking member at the bottom of the hopper, the steel balls are added into the ball mill. This requires manual operation by the operator and has certain potential safety hazards. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device for hoisting and adding grinding media, and the blocking member at the bottom can be automatically opened under the action of the self-weight of the steel balls to solve the technical problems existing in the prior art.

[0005] To solve the above technical problems, the utility model specifically provides the following technical solutions:

[0006] A device for hoisting and adding grinding media, comprising: a cylinder body with open ends at both ends; one end is the feeding port for grinding media, and the other end is the discharging port for grinding media; a blocking member located outside the cylinder body, the blocking member can move towards the discharging port so that the blocking member can fit with the discharging port to restrict the grinding media from leaving the cylinder body through the discharging port; and the blocking member can move away from the discharging port under the action of the grinding media inside the cylinder body so that the blocking member can be separated from the discharging port to relieve the restriction imposed on the grinding media; a pull rod vertically arranged at the central position of the blocking member, the pull rod passes through the cylinder body through the feeding port and the discharging port, and the end of the pull rod is located outside the cylinder body; a lifting ring is provided at the end of the pull rod for hoisting the cylinder body and applying a pulling force to the blocking member to make it fit with the discharging port; a bushing is arranged inside the cylinder body, and the bushing and the cylinder body are coaxially arranged. The outer side wall of the bushing is connected to the inner side wall of the cylinder body through a connecting rod to fix the bushing; the pull rod passes through the bushing.

[0007] Further, the part of the cylinder body close to the discharging port is a conical cylinder; wherein, the large-mouth end of the conical cylinder structure faces the feeding port, and the small-mouth end of the conical cylinder serves as the discharging port.

[0008] Further, the blocking member is a conical cavity, and the bottom diameter of the blocking member is larger than the diameter of the discharge port.

[0009] Further, at the edge position of the bottom of the blocking member, a first support plate extends outward perpendicular to the plane where the pull rod is located.

[0010] Further, one end of the pull rod connected to the blocking member extends into the interior of the blocking member, and a plurality of first reinforcing ribs are equidistantly arranged between the outer side wall of the part of the pull rod located inside the blocking member and the inner side wall of the blocking member.

[0011] Further, a baffle is provided on the end face of the bushing facing the feed port. A through hole is provided on the baffle, and the pull rod passes through the through hole. The through hole and the pull rod are in clearance fit to block the gap between the pull rod and the bushing.

[0012] Further, the baffle is also provided on the end face of the bushing facing the discharge port; at least two groups of rollers are respectively provided on the outer side faces of the two baffles. The rollers are in rolling contact with the outer side wall of the pull rod, and the rollers provided on the same baffle are centrally symmetrically distributed with the axis of the pull rod as the center.

[0013] Further, at least two connecting rods are respectively provided at both ends of the outer side wall of the bushing. Among them, the connecting rods located at the same end of the bushing are centrally symmetrically distributed with the axis of the bushing as the center; and all the connecting rods can be equidistantly radially distributed with the axis of the bushing as the center on the projection plane projected along the bushing.

[0014] Further, a second support plate is provided on the outer side wall of the cylinder body in a plane perpendicular to the axis of the cylinder body; wherein, a second reinforcing rib is provided between the side face of the second support plate facing the feed port and the outer side wall of the cylinder body.

[0015] The utility model has the following beneficial effects compared with the prior art:

[0016] For the grinding medium lifting and adding device provided by the utility model, a pulling force is applied to the blocking member at the bottom of the cylinder body through a lifting device, so that the blocking member is kept in contact with the discharge port of the cylinder body to limit the grinding medium in the cylinder body; after being lifted above the steel ball adding port of the ball mill and making them relatively fixed, the hook of the lifting device moves downward, so that the blocking member can be separated from the discharge port of the cylinder body under the action of the grinding medium inside the cylinder body, so that the grinding medium in the cylinder body enters the ball mill.

[0017] Further, a baffle is provided on the end face of the top of the bushing to block the gap between the pull rod and the bushing, preventing waste chips or other small debris on the grinding medium from falling into the gap, so as to avoid affecting the normal lifting of the pull rod. Description of the Drawings

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.

[0019] Figure 1 Structural schematic diagram of the grinding medium lifting and adding device provided by the utility model:

[0020] Figure 2 For Figure 1 Cross-sectional view of the grinding medium lifting and adding device in a closed state;

[0021] Figure 3 Structural schematic diagram at the baffle.

[0022] The reference numerals in the drawings are respectively represented as follows:

[0023] 1 - Cylinder body, 11 - Feed inlet, 12 - Discharge outlet, 13 - Conical cylinder, 14 - Second support plate, 15 - Second reinforcing rib;

[0024] 2 - Blocking member, 21 - First support plate, 22 - First reinforcing rib;

[0025] 3 - Pull rod, 31 - Suspension ring;

[0026] 4 - Bushing, 41 - Connecting rod;

[0027] 5 - Baffle, 51 - Roller, 52 - Through hole, 53 - Housing. Detailed Embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] As Figure 1 shown, the present invention provides an implementation manner of a grinding medium lifting and adding device, including a cylinder body 1, a blocking member 2, a pull rod 3 and a bushing 4.

[0030] Among them, both ends of the cylinder body 1 are open structures; one end is the feed port 11 for grinding media, and the other end is the discharge port 12 for grinding media, which is used to hold the grinding media.

[0031] In this embodiment, the shape of the cylinder body 1 is not limited. A cylindrical cylinder body 1 is preferred, and steel balls are preferably used as the grinding media.

[0032] The blocking member 2 is located outside the cylinder body 1. Under the action of an external force, the blocking member 2 can move towards the discharge port 12, so that the blocking member 2 can fit with the discharge port 12 of the cylinder body 1, covering the entire discharge port 12, to restrict the steel balls from leaving the cylinder body 1 from the discharge port 12.

[0033] Moreover, the blocking member 2 can move away from the discharge port 12 under the action of the steel balls inside the cylinder body 1, so that the blocking member 2 can be separated from the discharge port 12, to relieve the restriction imposed on the steel balls, and realize the unloading of the steel balls in the cylinder body 1.

[0034] The pull rod 3 is vertically arranged at the central position of the blocking member 2. The pull rod 3 passes through the cylinder body 1 through the feed port 11 and the discharge port 12, and the end of the pull rod 3 is located outside the cylinder body 1; a lifting ring 31 is provided at the end of the pull rod 3 for lifting the cylinder body 1.

[0035] Moreover, during the lifting process, the lifting equipment can continuously apply an upward pulling force to the blocking member 2 through the pull rod 3, and the cylinder body 1 moves downward under the action of the steel balls inside, so that the blocking member 2 can always be in a state of fitting with the discharge port 12 of the cylinder body 1, ensuring the sealing performance at the bottom of the cylinder body 1, to avoid the steel balls inside the cylinder body 1 falling from the discharge port 12 during the lifting process.

[0036] The bushing 4 is arranged inside the cylinder body 1, and the bushing 4 and the cylinder body 1 are coaxially arranged. The outer side wall of the bushing 4 is connected to the inner side wall of the cylinder body 1 through a connecting rod 41 to fix the bushing 4, and the pull rod 3 passes through the bushing 4 to restrict the pull rod 3.

[0037] Since a plurality of steel balls are contained inside the cylinder body 1, once the steel balls move inside the cylinder body 1 during the lifting process, the pull rod 3 will shift inside the cylinder body 1, and there will be a gap between the edge position of the blocking member 2 and the discharge port 12 of the cylinder body 1, resulting in the situation that the steel balls fall from the gap, posing a major safety hazard; the pull rod 3 is restricted by the bushing 4 to prevent the pull rod 3 from shifting inside the cylinder body 1 and eliminate the above-mentioned safety hazard.

[0038] This embodiment provides an example of the cylinder body, such as Figure 1 and Figure 2 as shown:

[0039] The portion of the barrel 1 close to the discharge port 12 is a conical barrel 13, in which the end with a large opening in the structure of the conical barrel 13 faces the feed port 11, and the end with a small opening in the conical barrel 13 serves as the discharge port 12; wherein, the diameter of the end with a large opening of the conical barrel 13 is consistent with the barrel diameter of the barrel 1, and is larger than the diameter of the steel ball inlet of the ball mill; the diameter of the end with a small opening of the conical barrel 13 is equivalent to the diameter of the steel ball inlet of the ball mill; so that the discharge port 12 of the barrel 1 can enter the interior of the steel ball inlet of the ball mill, and the conical barrel 13 portion of the barrel 1 can be stuck at the steel ball inlet of the ball mill, so as to achieve relative fixation of the two, and prevent the steel balls from falling to the outside of the ball mill during the unloading process.

[0040] In this state, the hook of the lifting equipment moves downward, so that the blocking member 2 can be separated from the discharge port 12 of the cylinder 1 under the action of the gravity of the steel balls inside the cylinder 1, so that the steel balls in the cylinder 1 enter the ball mill.

[0041] Furthermore, in order to improve the accuracy of the docking between the cylinder 1 and the steel ball inlet of the ball mill, it is necessary to avoid the cylinder 1 tilting when docking with the steel ball inlet of the ball mill, which may eventually cause the cylinder 1 to topple over and cause the steel balls in the cylinder 1 to fall, posing a safety hazard.

[0042] Therefore, in this embodiment, a second support plate 14 is provided on the outer wall of the cylinder 1 along a plane perpendicular to the axis of the cylinder 1. During the docking process between the cylinder 1 and the ball inlet of the ball mill, the second support plate 14 contacts the ball inlet of the ball mill to prevent the cylinder 1 from tilting.

[0043] A second reinforcing rib 15 is provided between the side surface of the second support plate 14 facing the feed port and the outer side wall of the cylinder 1 to improve the rigidity of the connection between the second support plate 14 and the cylinder 1 .

[0044] In this embodiment, if the blocking member 2 is a planar structure, the steel balls inside the cylinder 1 will be squeezed against each other, resulting in a stuck situation, so that even if the blocking member 2 at the bottom of the cylinder 1 is opened, the steel balls in the cylinder 1 cannot fall out; therefore, this embodiment also provides an embodiment of the blocking member 2, as shown in the figure:

[0045] The blocking member 2 is a conical cavity to ensure that when the blocking member 2 moves downward, there is excess space inside the cylinder 1, so that the steel balls in the cylinder 1 do not get stuck with each other; and the bottom diameter of the blocking member 2 is larger than the diameter of the discharge port 12, and is used to get stuck in the discharge port 12 of the cylinder 1 to achieve complete coverage of the discharge port 12.

[0046] Further, since the cylindrical body 1 is vertically placed on the ground when containing steel balls, the bottom of the blocking member 2 directly contacts the ground. To improve the stability of the entire cylindrical body 1 and prevent the cylindrical body 1 from tipping over; in this embodiment, at the edge position of the bottom of the blocking member 2, a first support plate 21 extends outward perpendicular to the plane where the pull rod 3 is located, expanding the contact area between the bottom of the blocking member 2 and the ground, so as to improve the stability of the entire cylindrical body 1 under the load state.

[0047] At the same time, since the blocking member 2 needs to enter the ball inlet of the ball mill, the size of the first support plate 21 needs to ensure that it can enter the ball inlet of the ball mill.

[0048] Since the cylindrical body 1 contains multiple steel balls, during the unloading process, the steel balls fall unevenly and will impact the outer side wall of the blocking member 2 with a conical cavity structure from multiple angles, resulting in uneven force on the outer side wall of the blocking member 2. If the pull rod 3 is directly connected to the top of the blocking member 2 with a conical cavity structure, the connection part will break, and the side wall of the blocking member 2 will also be dented under the impact of the steel balls.

[0049] In view of the above situation, in this embodiment, one end of the pull rod 3 connected to the blocking member 2 extends into the interior of the blocking member 2, and a plurality of first reinforcing ribs 22 are equidistantly arranged between the outer side wall of the part of the pull rod 3 located inside the blocking member 2 and the inner side wall of the blocking member 2; making the connection between the pull rod 3 and the blocking member 2 more firm, and at the same time avoiding deformation of the side wall of the blocking member 2.

[0050] Further, in this embodiment, a baffle 5 is provided on the end face of the bushing 4 facing the feed port 11. A through hole 52 is provided on the baffle 5, and the pull rod 3 passes through the through hole 52. The through hole 52 and the pull rod 3 are in clearance fit to block the gap between the pull rod 3 and the bushing 4; to prevent waste chips or other small debris on the grinding medium from falling into the gap, so as to avoid affecting the movement of the pull rod 3 relative to the bushing 4.

[0051] Further, a baffle 5 is also provided on the end face of the bushing 4 facing the discharge port 12, so that the pull rod 3 always maintains the same axis position as the bushing 4, so as to avoid the pull rod 3 from shifting in the vertical direction, resulting in the bottom of the bushing 4 being stuck with the pull rod 3 that is offset from the axis position of the bushing 4, causing the pull rod 3 to be unable to move and affecting the unloading.

[0052] Further, as Figure 3 shown, at least two groups of rollers 51 are respectively provided on the outer side faces of the two baffles 5. The rollers 51 are in rolling contact with the outer side wall of the pull rod 3, and the rollers 51 provided on the same baffle 5 are centrosymmetrically distributed with the axis of the pull rod 3 as the center, so as to convert the sliding friction between the pull rod 3 and the bushing 4 into the rolling friction between the pull rod 3 and the rollers 51, so as to reduce the friction force exerted on the pull rod 3 by the external structure during the movement of the pull rod 3.

[0053] In order to prevent the steel balls from hitting the rollers when loading the steel balls, a housing 53 covering the roller 51 is provided on the baffle 5, and the pull rod 3 passes through the housing 53 without contacting the housing 53.

[0054] Meanwhile, since a plurality of steel balls are loaded in the cylinder body 1, during the unloading process, the steel balls fall unevenly, which will cause extrusion on the bushing 4 in different directions.

[0055] Therefore, in this embodiment, at least two connecting rods 41 are respectively provided on the outer side wall of the bushing 4 at both ends. Among them, the connecting rods 41 located at the same end of the bushing 4 are symmetrically distributed with the axis of the bushing 4 as the center; and all the connecting rods 41 can be radially distributed at equal intervals with the axis of the bushing 4 as the center on the projection plane projected along the bushing 4, so as to ensure the stability of the bushing 4 inside the cylinder body 1.

[0056] Furthermore, considering that setting too many connecting rods 41 will hinder the falling of the steel balls, preferably, two connecting rods 41 are respectively arranged at both ends of the shaft end, and the two connecting rods 41 at each end are arranged in a straight line; and the four connecting rods 41 at the two ends are in a cross shape on the projection plane projected along the bushing 4.

[0057] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present application, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present application.

Claims

1. A grinding medium hoisting and adding device, characterized in that: include: The cylinder (1) has open structures at both ends; one end is a feed port (11) for the grinding medium, and the other end is a discharge port (12) for the grinding medium; a blocking member (2) located outside the cylinder (1), the blocking member (2) being able to move toward the discharge port (12) so that the blocking member (2) can fit the discharge port (12) and cover the entire discharge port (12) to restrict the grinding medium from leaving the cylinder (1) from the discharge port (12); and the blocking member (2) can move away from the discharge port (12) under the action of the grinding medium inside the cylinder (1), so that the blocking member (2) can be separated from the discharge port (12) to release the restriction imposed on the grinding medium; A pull rod (3) is vertically arranged at the center of the blocking member (2); the pull rod (3) passes through the cylinder (1) through the feed port (11) and the discharge port (12), and the end of the pull rod (3) is located outside the cylinder (1); a lifting ring (31) is provided at the end of the pull rod (3) for lifting the cylinder (1); during the lifting process, the lifting equipment applies a pulling force to the blocking member (2) through the pull rod (3), so that the blocking member (2) fits the discharge port (12); A shaft sleeve (4) is arranged inside the cylinder (1), and the shaft sleeve (4) and the cylinder (1) are arranged coaxially, and the outer wall of the shaft sleeve (4) is connected to the inner wall of the cylinder (1) through a connecting rod (41) to fix the shaft sleeve (4); the pull rod (3) passes through the shaft sleeve (4).

2. The grinding medium lifting and adding device according to claim 1 is characterized in that: The portion of the barrel (1) close to the discharge port (12) is a conical barrel (13); wherein one end of the large opening in the structure of the conical barrel (13) faces the feed port (11), and one end of the small opening in the conical barrel (13) serves as the discharge port (12).

3. The grinding medium lifting and adding device according to claim 1 is characterized in that: The blocking member (2) is a conical cavity, and the bottom diameter of the blocking member (2) is greater than the diameter of the discharge port (12).

4. The grinding medium lifting and adding device according to claim 3 is characterized in that: The blocking member (2) extends outwards at the edge of the bottom along a plane perpendicular to the pull rod (3) to form a first support plate (21).

5. The grinding medium lifting and adding device according to claim 4, characterized in that: One end of the pull rod (3) connected to the blocking member (2) extends into the interior of the blocking member (2), and a plurality of first reinforcing ribs (22) are provided at equal intervals between the outer wall of the inner part of the pull rod (3) located inside the blocking member (2) and the inner wall of the blocking member (2).

6. The grinding medium lifting and adding device according to claim 1 or 5, characterized in that: The end surface of the sleeve (4) facing the feed port (11) is provided with a baffle (5), and the baffle (5) is provided with a through hole (52), and the pull rod (3) passes through the through hole (52), and the through hole (52) and the pull rod (3) are clearance-matched to cover the gap between the pull rod (3) and the sleeve (4).

7. The grinding medium lifting and adding device according to claim 6, characterized in that: The baffle (5) is also provided on the end surface of the shaft sleeve (4) facing the discharge port (12); At least two groups of rollers (51) are respectively provided on the outer side surfaces of the two baffles (5), and the rollers (51) are in rolling contact with the outer side walls of the pull rod (3), and the rollers (51) arranged on the same baffle (5) are symmetrically distributed with the axis of the pull rod (3) as the center.

8. The grinding medium lifting and adding device according to claim 7, characterized in that: The outer wall of the shaft sleeve (4) is provided with at least two connecting rods (41) at two ends, respectively, wherein the connecting rods (41) located at the same end of the shaft sleeve (4) are symmetrically distributed with the axis of the shaft sleeve (4) as the center; Furthermore, all the connecting rods (41) can be radially distributed at equal intervals with the axis of the shaft sleeve (4) as the center on a projection plane projected along the shaft sleeve (4).

9. The grinding medium lifting and adding device according to claim 1 or 7, characterized in that: A second support plate (14) is provided on the outer wall of the cylinder (1) along a plane perpendicular to the axis of the cylinder (1); wherein a second reinforcing rib (15) is provided between the side surface of the second support plate (14) facing the feed port (11) and the outer wall of the cylinder (1).

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