Beneficiation crushing device

Abstract

The utility model discloses a mineral separation crushing device which comprises a crushing cylinder and a hopper, a crushing mechanism is arranged in the crushing cylinder and used for crushing ores, the crushing mechanism comprises a rotating disc, a plurality of hammer heads are fixedly connected to the outer side of the rotating disc at equal intervals, a plurality of crushing teeth are arranged on one side of each hammer head, and the hammer heads impact the ores through the crushing teeth. A feeding mechanism is arranged in the hopper and used for assisting feeding, the feeding mechanism comprises a conveying belt, a plurality of protruding blocks are fixedly connected to the outer side of the conveying belt at equal intervals, and the conveying belt pushes materials through the protruding blocks. During feeding, the baffle can limit free falling of materials under the action of elastic force of the torsional spring, and along with continuous operation of the conveying belt, acceleration can be given to the materials through the convex blocks, so that the materials enter the crushing barrel at a set angle and speed, and the difference of force borne by the materials when the materials are impacted by the hammer head is reduced; and therefore, the material crushing uniformity is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ore crushing, in particular to an ore dressing crushing device. Background Art

[0002] Ore dressing is the process of crushing and grinding the ore according to the physical and chemical properties of different minerals in the ore, and then using gravity separation, flotation, magnetic separation, electrostatic separation and other methods to separate useful minerals from gangue minerals, and to separate various symbiotic (associated) useful minerals from each other as much as possible, remove or reduce harmful impurities, so as to obtain the raw materials needed for smelting or other industries.

[0003] Ore crushing is the first step in the mineral processing process. Its purpose is to break the ore into small pieces to release valuable minerals and increase the surface area and reactivity of the ore, thereby improving the mineral processing effect. If the ore is not crushed sufficiently in this step, it may lead to a decrease in mineral processing efficiency, increase mineral processing costs and reduce the utilization value of the ore.

[0004] After searching, the Chinese utility model patent with publication number CN208554407U discloses a new type of high-efficiency hammer crusher, including a casing, an impact plate and a hammer head. A frame is welded at the bottom of the casing, a reset spring is welded at one end of the casing, a cover plate is movably connected to the surface of the reset spring by screws, a sealing ring is adhered to one side of the cover plate, an inspection door is movably connected to one side of the hammer head by a hinge, a water tank is welded at the bottom of the frame, a filter sponge is adhered to the bottom of the inner cavity of the water tank, a water pump is connected to one side of the water tank through a water pipe, one end of the water pump is connected to a motor through a coupling, the other end of the water pump is connected to an atomizing nozzle through a water pipe, and a sound insulation board is adhered to the outer surface of the casing. This application realizes material crushing by the impact of the hammer head on the material and the collision of the material with the impact plate again after the impact. However, it is difficult to control the falling direction of the stone in the process of the device putting the material into the device, so different stones will have different impact angles with the hammer head, which will cause the deviation of the stone and the different impact force, and then cause the uneven crushing particle size, thus affecting the crushing effect. Utility Model Content

[0005] In view of the above-mentioned prior art, the utility model provides a mineral processing and crushing device, and the main technical problem to be solved is how to improve the effect of ore crushing.

[0006] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0007] A mineral processing and crushing device comprises a crushing drum and a hopper. A crushing mechanism is arranged in the crushing drum, and the crushing mechanism is used for crushing ore. The crushing mechanism comprises a turntable, and a plurality of hammers are fixedly connected to the outer side of the turntable at equal intervals. A plurality of crushing teeth are arranged on one side of the hammer, and the hammer strikes the ore through the crushing teeth. A feeding mechanism is arranged in the hopper, and the feeding mechanism is used for assisting feeding. The feeding mechanism comprises a conveyor belt, and a plurality of protrusions are fixedly connected to the outer side of the conveyor belt at equal intervals, and the conveyor belt pushes the material through the protrusions.

[0008] Furthermore, a feed port is provided at the top of one side of the crushing cylinder, the hopper is fixedly connected to the crushing cylinder at the feed port, a rectangular opening is provided at the bottom end of the hopper, and a fixed frame is fixedly connected to the bottom end of the hopper at the rectangular opening, the conveyor belt is at the rectangular opening, a baffle is rotatably connected to one side of the top end of the hopper, a torsion spring is fixedly connected between the baffle and the hopper, and the baffle is in an inwardly inclined state.

[0009] Furthermore, a first roller is rotatably connected to one end of the inner wall on one side of the fixed frame, and a circular through hole is opened at one end of the other side of the fixed frame. One end of the first roller extends to the outside of the fixed frame at the circular through hole, and a second roller is rotatably connected to the other end between the inner walls on both sides of the fixed frame, and the conveyor belt is arranged on the outside of the first roller and the second roller.

[0010] Furthermore, circular openings are provided in the middle of both sides of the crushing barrel, and the crushing barrel is rotatably connected to the same rotating shaft at the two circular openings, the turntable is fixedly connected to the outside of the rod body where the rotating shaft is located inside the crushing barrel, one side of the crushing barrel is fixedly connected to a motor, one end of the output shaft of the motor is fixedly connected to the rotating shaft, and the other end of the rotating shaft is connected to a driving wheel through a key.

[0011] Furthermore, the side wall of the crushing barrel is rotatably connected with a connecting shaft between the driving wheel and the fixed frame, the outside of the connecting shaft is connected with a driven wheel through a key, the driven wheel is meshed with the driving wheel, and the diameter of the driving wheel is larger than the diameter of the driven wheel, the end of the connecting shaft and the end of the first roller outside the fixed frame are connected with pulleys through keys, and the same belt is provided on the outside of the two pulleys.

[0012] Furthermore, a discharge port is provided at the bottom end of the crushing cylinder, and a mesh plate is fixedly connected to the discharge port of the crushing cylinder. A plurality of pointed cones are fixedly connected to the inner wall of the crushing cylinder at equal intervals. The pointed cones are in the shape of a regular pyramid, and the hammer head is in the shape of a trapezoid. The upper bottom of the hammer head is on the side away from the turntable, and the lower bottom of the hammer head is on the side close to the turntable.

[0013] Furthermore, a bottom plate is provided below the crushing drum, and a plurality of supporting legs are fixedly connected between the bottom plate and the crushing drum at equal distances.

[0014] Furthermore, there are a plurality of rotating disks, and the plurality of rotating disks are equidistantly arranged in series outside the rotating shaft, and the hammer heads outside two adjacent rotating disks are staggeredly distributed.

[0015] The beneficial effects of the utility model are:

[0016] 1. When feeding, the baffle will limit the free fall of the material under the elastic force of the torsion spring, and as the conveyor belt continues to run, the material can be given acceleration through the convex block, so that it enters the crushing barrel at a predetermined angle and speed, thereby reducing the difference in force when the material is hit by the hammer, thereby ensuring the uniformity of material crushing; and because the direction of the above acceleration is different from the movement direction of the hammer, the relative movement of the two can have a greater impact force, so the hammer can crush the material more fully, thereby improving the effect of ore crushing;

[0017] 2. After the hammer hits the material to break it, the material fragments will be splashed due to the impact. In this case, the fragments will hit the inner wall of the crushing barrel and be broken again under the action of the pointed cone, so as to further improve the crushing effect of the ore; in addition, since the two side walls of the hammer are inclined, its rotation will not capture the fragments, but will allow the fragments to be thrown out along the inclined surface under the action of centrifugal force, so as to ensure the secondary crushing effect of the fragments.

[0018] 3. By staggering the two crushing mechanisms in the crushing barrel, several hammer heads can rotate in a dislocated state. The hammer heads in this state can produce more complex stirring in the crushing barrel, so that the ore can be splashed and collided more fully, thereby ensuring the crushing effect of the device on the ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of a mineral processing and crushing device in Example 1 of the present application;

[0020] Figure 2 This is a front cross-sectional view of a mineral processing and crushing device in Example 1 of the present application;

[0021] Figure 3 This is a three-dimensional diagram of a crushing mechanism of a mineral processing crushing device in Example 1 of the present application;

[0022] Figure 4 This is a three-dimensional diagram of the crushing mechanism of a mineral processing crushing device in Example 2 of the present application.

[0023] Description of Figure Numbers:

[0024] Crushing barrel 1, pointed cone 101, driving wheel 2, rotating shaft 3, turntable 301, hammer head 302, crushing teeth 303, supporting foot 4, bottom plate 5, driven wheel 6, pulley 7, connecting shaft 8, belt 9, first roller 10, hopper 11, fixed frame 12, baffle 13, second roller 14, conveyor belt 15, protrusion 16, torsion spring 17. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0026] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0027] Example 1

[0028] See attached Figure 1-3 The present application provides a mineral processing and crushing device, including a crushing drum 1 and a hopper 11. The crushing drum 1 is provided with a crushing mechanism, and the crushing mechanism is used to crush ore. The crushing mechanism includes a rotating disk 301, and a plurality of hammers 302 are fixedly connected to the outer side of the rotating disk 301 at equal intervals. A plurality of crushing teeth 303 are provided on one side of the hammer 302, and the hammer 302 strikes the ore through the crushing teeth 303, that is, the rotation of the hammer 302 can strike the material, and the material can be crushed under the support of the crushing teeth 303. A feeding mechanism is provided in the hopper 11, and the feeding mechanism is used to assist the feeding. The material mechanism includes a conveyor belt 15, and a plurality of protrusions 16 are equidistantly fixedly connected to the outside of the conveyor belt 15, and the conveyor belt 15 pushes the material through the protrusions 16. The protrusions 16 can increase the friction between the conveyor belt 15 and the stones. Therefore, the operation of the conveyor belt 15 can more effectively apply force to the stones, so that the process of the stones entering the crushing cylinder 1 has acceleration and a fixed direction. In this case, the rotation of the hammer head 302 can not only produce a greater impact with the stones, but also avoid the possible deviation of the direction of the stones when entering the material, thereby causing the phenomenon that there are differences in the impact force.

[0029] Preferably, a feeding port is provided at the top of one side of the crushing cylinder 1, and the hopper 11 is fixedly connected to the crushing cylinder 1 at the feeding port. The hopper 11 is tilted to facilitate feeding. A rectangular opening is provided at the bottom end of the hopper 11, and a fixing frame 12 is fixedly connected to the bottom end of the hopper 11 at the rectangular opening. The conveyor belt 15 is located at the rectangular opening, that is, the conveyor belt 15 is in the fixing frame 12, and the conveyor belt 15 is used to replace the bottom wall of the hopper 11, so that the material can be pushed by the conveyor belt 15 when it rolls downward, and has a greater travel speed, thereby achieving the above-mentioned effects of imparting acceleration and fixing direction. One side of the top end of the hopper 11 is rotatably connected to a stopper Plate 13, a torsion spring 17 is fixedly connected between the baffle 13 and the hopper 11, and the baffle 13 is in an inwardly inclined state, and the bottom end of the baffle 13 is placed on the surface of the conveyor belt 15. The function of the baffle 13 is not to completely block the passage of materials, but to allow the materials to converge to the conveyor belt 15 and ensure that the materials can be close to the conveyor belt 15, so as to ensure that the friction force can effectively do work in the above process, and the function of the torsion spring 17 is that when there is a volume difference between the materials, the larger materials will be heavier and have a greater gravitational acceleration. Therefore, when the materials fall, they will fall into the crushing drum 1 after the baffle 13 is pushed open. In this process, the baffle 13 only has a guiding effect on the materials.

[0030] Preferably, a first roller 10 is rotatably connected to one end of the inner wall on one side of the fixed frame 12, and a circular through hole is opened at one end of the other side of the fixed frame 12. One end of the first roller 10 extends to the outside of the fixed frame 12 at the circular through hole, and a second roller 14 is rotatably connected to the other end between the inner walls on both sides of the fixed frame 12. The conveyor belt 15 is sleeved on the outside of the first roller 10 and the second roller 14. The first roller 10 and the second roller 14 can support the conveyor belt 15 and keep it in a stretched state. Therefore, the rotation of the first roller 10 can make the conveyor belt 15 run, giving acceleration to the material through the protrusion 16.

[0031] Preferably, circular openings are provided in the middle of both sides of the crushing barrel 1, and the crushing barrel 1 is rotatably connected to the same rotating shaft 3 at the two circular openings, the turntable 301 is fixedly connected to the outside of the rod body of the rotating shaft 3 in the crushing barrel 1, and a motor is fixedly connected to one side of the crushing barrel 1, one end of the output shaft of the motor is fixedly connected to the rotating shaft 3, and the other end of the rotating shaft 3 is connected to the driving wheel 2 through a key. The motor can be a servo motor. The servo motor can control the speed of the rotation, and the operating rate of the crushing mechanism, that is, the speed of the hammer head 302, can be controlled by utilizing the characteristic that the servo motor can control the rotation speed, so as to cope with the use under different crushing requirements.

[0032] Preferably, the side wall of the crushing drum 1 is rotatably connected with a connecting shaft 8 between the driving wheel 2 and the fixed frame 12, and the outside of the connecting shaft 8 is connected with a driven wheel 6 through a key, the driven wheel 6 is meshed with the driving wheel 2, and the diameter of the driving wheel 2 is larger than the diameter of the driven wheel 6. The driving wheel 2 with a larger diameter drives the driven wheel 6 with a smaller diameter to rotate, which can accelerate the latter, and the driven wheel 6 can drive the conveyor belt 15 to run through a belt transmission system at a higher speed, thereby ensuring that sufficient initial power is provided for the material. The end of the connecting shaft 8 and the end of the first roller 10 outside the fixed frame 12 are both connected with pulleys 7 through keys, and the two pulleys 7 are covered with the same belt 9.

[0033] Preferably, a discharge port is provided at the bottom end of the crushing cylinder 1, and a mesh plate is fixedly connected to the discharge port of the crushing cylinder 1. The mesh plate should have a certain thickness to resist the impact of ore fragments, such as being made of punched metal plates. A plurality of sharp cones 101 are fixedly connected to the inner wall of the crushing cylinder 1 at equal intervals. The sharp cones 101 are in the shape of regular pyramids. After the hammer head 302 collides with the ore, the ore will be decomposed into fragments and splashed in the crushing cylinder 1. When it splashes onto the inner wall of the crushing cylinder 1, it will collide with the sharp cones 101 and be further crushed. The head 302 is trapezoidal, the upper base of the hammer head 302 is on the side away from the turntable 301, and the lower base of the hammer head 302 is on the side close to the turntable 301. In this state, both side surfaces of the hammer head 302 are inclined surfaces. Therefore, when the above-mentioned fragments are splashed onto the hammer head 302, in addition to causing another collision, the hammer head 302 of this shape will not capture the fragments, but will allow them to move along the above-mentioned inclined surface due to centrifugal force until the fragments are thrown out and hit the inner wall of the crushing cylinder 1, thereby also allowing the fragments to be further crushed.

[0034] Preferably, a bottom plate 5 is provided below the crushing cylinder 1 , a plurality of rubber anti-skid pads are equidistantly fixedly connected to the bottom of the bottom plate 5 , and a plurality of supporting feet 4 are equidistantly fixedly connected between the bottom plate 5 and the crushing cylinder 1 .

[0035] Working principle: When the device is used, the motor can be started first to drive the rotating shaft 3 to rotate. The rotating shaft 3 can drive the hammer head 302 to rotate through the turntable 301. On the other hand, the rotating shaft 3 can also drive the driven wheel 6 to rotate through the driving wheel 2. The driven wheel 6 drives the first roller 10 to rotate through the belt 9 and two pulleys 7. Therefore, under the support of the second roller 14, the conveyor belt 15 can start to run;

[0036] Then the material can be put into the hopper 11. At this time, the baffle 13 will gather and push the material under the elastic force of the torsion spring 17, so that the material can be close to the conveyor belt 15. Therefore, the operation of the conveyor belt 15 can push the material through the protrusion 16, thereby giving the stone acceleration and forward direction. After the material in this state enters the crushing cylinder 1, it can produce a greater impact with the rotating hammer head 302, thereby achieving the crushing of the stone;

[0037] After that, the broken stones will splash inside the crushing drum 1. When the broken stones hit the inner wall of the crushing drum 1, the sharp cone 101 can further crush the broken stones. When the broken stones are ejected onto the other hammer head 302, since the two side surfaces of the hammer head 302 are both inclined surfaces, the rotation of the hammer head 302 will not capture the broken stones, but will cause the broken stones to be thrown out along the above-mentioned inclined surface under the action of centrifugal force. Therefore, the broken stones will also collide with the sharp cone 101 on the inner wall of the crushing drum 1, thereby ensuring the crushing effect of the material.

[0038] Example 2

[0039] See attached Figure 4 The present application provides a mineral processing and crushing device. Compared with Example 1, in order to further ensure the crushing effect of the ore, the number of turntables 301 is several, and the turntables 301 are equidistantly arranged in series outside the rotating shaft 3, and the hammers 302 outside the two adjacent turntables 301 are staggered. In this form, the hammers 302 can stir the fragments more chaotically when rotating, so that they can have more multiple collisions, thereby further ensuring the crushing effect of the ore.

[0040] Working principle: By arranging multiple crushing mechanisms in a staggered manner in the crushing barrel 1, the hammer heads 302 in this form will have a more chaotic stirring effect when rotating in the crushing barrel 1, so that the material fragments can be splashed more chaotically in the crushing barrel 1, thereby ensuring the crushing effect of the ore in one step.

[0041] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A mineral processing crushing device, comprising a crushing drum (1) and a hopper (11), characterized in that: The crushing cylinder (1) is provided with a crushing mechanism, which is used for crushing ore. The crushing mechanism comprises a rotating disk (301), and a plurality of hammer heads (302) are fixedly connected to the outer side of the rotating disk (301) at equal intervals. A plurality of crushing teeth (303) are provided on one side of the hammer heads (302), and the hammer heads (302) strike the ore through the crushing teeth (303). The hopper (11) is provided with a feeding mechanism, which is used for assisting feeding. The feeding mechanism comprises a conveyor belt (15), and a plurality of protrusions (16) are fixedly connected to the outer side of the conveyor belt (15) at equal intervals, and the conveyor belt (15) pushes the material through the protrusions (16).

2. A mineral processing and crushing device according to claim 1, characterized in that: A feed inlet is provided at the top of one side of the crushing cylinder (1); the hopper (11) is fixedly connected to the crushing cylinder (1) at the feed inlet; a rectangular opening is provided at the bottom of the hopper (11); a fixing frame (12) is fixedly connected to the bottom of the hopper (11) at the rectangular opening; the conveyor belt (15) is located at the rectangular opening; a baffle (13) is rotatably connected to one side of the top of the hopper (11); a torsion spring (17) is fixedly connected between the baffle (13) and the hopper (11); and the baffle (13) is in an inwardly inclined state.

3. A mineral processing and crushing device according to claim 2, characterized in that: A first roller (10) is rotatably connected to one end of the inner wall of one side of the fixed frame (12), and a circular through hole is provided at one end of the other side of the fixed frame (12); one end of the first roller (10) extends to the outside of the fixed frame (12) at the circular through hole; a second roller (14) is rotatably connected to the other end between the inner walls on both sides of the fixed frame (12); and the conveyor belt (15) is sleeved on the outside of the first roller (10) and the second roller (14).

4. A mineral processing and crushing device according to claim 3, characterized in that: The crushing barrel (1) is provided with circular openings in the middle of both sides, and the crushing barrel (1) is rotatably connected to the same rotating shaft (3) at the two circular openings, the rotating disk (301) is fixedly connected to the outside of the rod body of the rotating shaft (3) in the crushing barrel (1), one side of the crushing barrel (1) is fixedly connected to a motor, one end of the output shaft of the motor is fixedly connected to the rotating shaft (3), and the other end of the rotating shaft (3) is connected to a driving wheel (2) via a key.

5. The ore dressing and crushing device according to claim 4, characterized in that: The side wall of the crushing cylinder (1) is rotatably connected with a connecting shaft (8) between the driving wheel (2) and the fixed frame (12); the outside of the connecting shaft (8) is connected with a driven wheel (6) via a key; the driven wheel (6) is meshed with the driving wheel (2); the diameter of the driving wheel (2) is larger than the diameter of the driven wheel (6); the end of the connecting shaft (8) and the end of the first roller (10) outside the fixed frame (12) are both connected with pulleys (7) via a key; the outsides of the two pulleys (7) are covered with the same belt (9).

6. The ore dressing and crushing device according to claim 1, characterized in that: The bottom end of the crushing cylinder (1) is provided with a discharge port, and the crushing cylinder (1) is fixedly connected to a mesh plate at the discharge port. A plurality of pointed cones (101) are fixedly connected to the inner wall of the crushing cylinder (1) at equal intervals, and the pointed cones (101) are in the shape of a regular pyramid. The hammer head (302) is in the shape of a trapezoid, and the upper base of the hammer head (302) is located on a side away from the rotating disk (301), and the lower base of the hammer head (302) is located on a side close to the rotating disk (301).

7. The ore dressing and crushing device according to claim 1, characterized in that: A bottom plate (5) is provided below the crushing cylinder (1), and a plurality of supporting legs (4) are fixedly connected at equal distances between the bottom plate (5) and the crushing cylinder (1).

8. The ore dressing and crushing device according to claim 1, characterized in that: There are a plurality of rotating disks (301), and the plurality of rotating disks (301) are equidistantly arranged in series outside the rotating shaft (3), and the hammer heads (302) outside two adjacent rotating disks (301) are staggeredly distributed.

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