CN223875144U - Graphite ore ball mill - Google Patents

Abstract

This invention provides a graphite ball mill, comprising a large grinding ball, a small grinding ball, an outer rotating cylinder, an inner rotating cylinder, a first motor, and a second motor. The outer rotating cylinder is horizontally positioned, and the inner rotating cylinder is located inside the outer rotating cylinder with parallel axes. Annular baffles are fixedly installed at both ends of the outer rotating cylinder, and these baffles are rotatably connected to the inner rotating cylinder. Both ends of the inner rotating cylinder extend outside the outer rotating cylinder. The portion of the inner rotating cylinder located inside the outer rotating cylinder has a mesh structure. The other end of the inner rotating cylinder is fixedly connected to the output shaft of the first motor. Several support wheels are provided on the lower sides of both the outer and inner rotating cylinders. The second motor drives the outer rotating cylinder to rotate. This invention solves the problem that when powdery materials are mixed with lumpy or large particles, the crushing speed of the lumpy or large particles is slowed down, thus improving grinding efficiency.

Description

Graphite ore ball mill

Technical Field

The utility model relates to the technical field of ball mills, in particular to a graphite ore ball mill.

Background

The ball mill consists of horizontal cylinder, hollow feeding and discharging shaft, grinding head, etc. the cylinder is long cylinder with grinding body inside, and the cylinder is made of steel plate and has steel lining board fixed to the cylinder. The material is selected according to the granularity of the ground material, the material is filled into the cylinder body by the hollow shaft at the feeding end of the ball mill, when the ball mill cylinder body rotates, the grinding body is attached to the cylinder liner plate and taken away by the cylinder body under the action of inertia and centrifugal force, and when the ball mill cylinder body is taken to a certain height, the ground material in the cylinder body is thrown down under the action of gravity of the grinding body, and the fallen grinding body breaks up the material in the cylinder body like a projectile.

Part of the ore is rapidly ground into powder after being crushed by the grinding balls, and the other part of the ore is in a block structure or large particle shape, so that the crushing efficiency of the block structure or large particle shape is reduced when the powder and the uncrushed part are together, and the overall grinding speed is delayed.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model provides a graphite ore ball mill, which solves the problem that the crushing speed of a block structure or a large particle can be delayed when the powder and the block structure or the large particle are together in the prior art, so that the grinding efficiency is slowed down.

According to the embodiment of the utility model, the graphite ore ball mill comprises a large grinding ball, a small grinding ball, an outer rotary drum, an inner rotary drum, a first motor and a second motor, wherein the outer rotary drum is horizontally arranged, the inner rotary drum is arranged in the outer rotary drum, the axes of the inner rotary drum are parallel, annular baffles are fixedly arranged at two ends of the outer rotary drum, the annular baffles are rotationally connected with the inner rotary drum, two ends of the inner rotary drum extend to the outer rotary drum, the inner rotary drum is of a net-shaped structure, a horn-shaped feed inlet with an inward opening is arranged at one end of the inner rotary drum, the other end of the inner rotary drum is fixedly connected with an output shaft of the first motor, a plurality of supporting wheels are arranged below two sides of the outer rotary drum and below two sides of the inner rotary drum, the second motor drives the outer rotary drum to rotate, the large grinding ball and the small grinding ball are respectively arranged in the inner rotary drum and the outer rotary drum, and a closable discharge port is arranged on the wall of the outer rotary drum.

The utility model has the technical principle that raw materials firstly enter the inner rotary drum and are crushed into smaller particles by the large grinding balls, and then overflow into the outer rotary drum provided with the small grinding balls, so that secondary grinding is carried out, and the grinding efficiency is accelerated by graded grinding.

Preferably, a hopper is arranged at one end of the feeding hole, a supporting frame with rollers is arranged at the bottom of the hopper, a guide rail is fixedly arranged at the bottom of the rollers, and a telescopic rod for pushing the supporting frame to transversely move is arranged at one side of the supporting frame.

Preferably, the feed inlet is provided with a detachable dust-proof plate.

Preferably, the discharge port is provided with a sealing plate capable of sliding left and right, and a bolt for fixing is arranged between the sealing plate and the outer rotary cylinder.

Preferably, a first gear is fixedly arranged on the output shaft of the second motor, a second gear is fixedly arranged on the outer rotary cylinder, and the first gear is meshed with the second gear.

Preferably, the mesh structure includes a plurality of transverse rods disposed about the axis of the inner rotor and circular retaining rings juxtaposed along the axis of the inner rotor.

Preferably, a space is provided between the axial direction of the inner rotary drum and the axial direction of the outer rotary drum.

Compared with the prior art, the utility model has the advantages that the working efficiency is improved through the mode of primary coarse grinding and secondary fine grinding, coarse particles are limited to be continuously crushed in the inner cylinder, and fine particles are transferred to the outer cylinder in time, so that the energy consumption waste caused by repeated grinding is avoided.

Drawings

Fig. 1 is a schematic view of the internal structure of the present utility model.

Fig. 2 is a side view of the present utility model.

Fig. 3 is a schematic diagram of a second motor connection according to the present utility model.

In the drawing, 1, an outer rotary drum, 2, an inner rotary drum, 3, a small grinding ball, 4, a large grinding ball, 5, a supporting wheel, 6, a telescopic rod, 7, a supporting frame, 8, a discharge hole, 9, a bolt, 10, a first motor, 11, a second motor, 12, a first gear, 13, a hopper, 14 and a guide rail.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

As shown in fig. 1, 2 and 3, the embodiment of the utility model provides a graphite ore ball mill, which comprises a large grinding ball 4, a small grinding ball 3, an outer rotary drum 1, an inner rotary drum 2, a first motor 10 and a second motor 11, wherein the outer rotary drum 1 is horizontally arranged, the inner rotary drum 2 is arranged in the outer rotary drum 1, the axes of the inner rotary drum 2 are parallel, annular baffles are fixedly arranged at two ends of the outer rotary drum 1, and the annular baffles prevent dust or materials from overflowing from two ends of the outer rotary drum 1. The annular baffle with the internal rotation tube 2 rotates to be connected, the both ends of internal rotation tube 2 all extend to the outside of outer rotation tube 1, are convenient for support and feeding. The inner rotary drum 2 is provided with a net structure at the inner part of the outer rotary drum 1, and the gap on the net structure is smaller than the size of the big grinding ball 4. The outside of the one end of the inner rotary drum 2 is provided with a horn-shaped feed inlet with an inward opening, and graphite ore overflows to the feed inlet and then returns to the inner rotary drum 2 when the inner rotary drum 2 rotates. The other end of the inner rotary cylinder 2 is fixedly connected with the output shaft of the first motor 10, the body of the first motor 10 is fixedly arranged, and the output shaft of the first motor 10 is coaxial with the axis of the inner rotary cylinder 2. A plurality of supporting wheels 5 are arranged below the two sides of the outer rotary drum 1 and the inner rotary drum 2, and the positions of the outer rotary drum 1 and the inner rotary drum 2 can be kept fixed when the outer rotary drum 1 and the inner rotary drum 2 rotate. The second motor 11 drives the outer rotary cylinder 1 to rotate. The big grinding ball 4 and the small grinding ball 3 are respectively arranged inside the inner rotary cylinder 2 and the outer rotary cylinder 1. The cylinder wall of the outer rotary cylinder 1 is provided with a closable discharge hole 8. In this embodiment, the material enters from the feed inlet at one end of the inner rotary drum 2, and is discharged from the discharge outlet 8 after being polished by the inner rotary drum 2 and the outer rotary drum 1 in sequence. The coarse grinding and the fine grinding use different rotating speeds, so that the energy consumption and ineffective crushing are reduced.

Preferably, a hopper 13 is arranged at one end of the feeding hole, and a supporting frame 7 with rollers is arranged at the bottom of the hopper 13. The bottom of the roller is fixedly provided with a guide rail 14. One side of the supporting frame 7 is provided with a telescopic rod 6 for pushing the supporting frame 7 to move transversely. In this embodiment, the discharge opening of the hopper 13 extends to one side, and when the material is required to be supplied to the inner rotary drum 2, the push rod is extended, so that the bottom of the hopper 13 enters the inside of the feed inlet, and the material is not overflowed when discharged from the bottom of the hopper 13.

Preferably, the inlet is provided with a removable dust guard, so that no dust can escape when the inner rotor 2 rotates. In this embodiment, the dust guard is fixed to the end of the inner rotary cylinder 2 using bolts 9.

Preferably, the discharge port 8 is provided with a sealing plate capable of sliding left and right, and a bolt 9 for fixing is provided between the sealing plate and the outer rotary drum 1. After finishing polishing, the sealing plate is pushed away, and the powder is discharged.

As shown in fig. 3, preferably, a first gear 12 is fixedly disposed on the output shaft of the second motor 11, and a second gear is fixedly disposed on the outer rotary drum 1, and the first gear 12 and the second gear are meshed. In this embodiment, the output shaft of the second motor 11 is provided with a transmission.

Preferably, the mesh structure comprises a plurality of transverse bars disposed around the axis of the inner rotor 2 and circular retaining rings juxtaposed along the axis of the inner rotor 2. The net structure is simple, and the material falls down after being convenient for break.

Preferably, a space is provided between the axial direction of the inner rotary drum 2 and the axial direction of the outer rotary drum 1. The maximum distance between the outer wall of the inner rotary drum 2 and the outer rotary drum 1 is arranged at the side lower part and corresponds to the rotation direction of the outer rotary drum 1, so that materials can fall down rapidly.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (7)

1. A graphite ore ball mill is characterized by comprising a large grinding ball (4), a small grinding ball (3), an outer rotating drum (1), an inner rotating drum (2), a first motor (10) and a second motor (11), wherein the outer rotating drum (1) is horizontally arranged, the inner rotating drum (2) is arranged inside the outer rotating drum (1) and is parallel to the axis, annular baffles are fixedly arranged at two ends of the outer rotating drum (1), the annular baffles are rotationally connected with the inner rotating drum (2), two ends of the inner rotating drum (2) extend to the outside of the outer rotating drum (1), the part of the inner rotating drum (2) located inside the outer rotating drum (1) is of a net-shaped structure, an opening-inward horn-shaped feed inlet is formed in the outside of one end of the inner rotating drum (2), the other end of the inner rotating drum (2) is fixedly connected with an output shaft of the first motor (10), a plurality of supporting wheels (5) are arranged below two sides of the outer rotating drum (1) and the inner rotating drum (2), the second motor (11) drives the outer rotating drum (1) to rotate, and the inner rotating drum (1) and the inner rotating drum (2) are provided with a closed discharge port.

2. A graphite ore ball mill as claimed in claim 1, wherein a hopper (13) is arranged at one end of the feed inlet, a support frame (7) with rollers is arranged at the bottom of the hopper (13), guide rails (14) are fixedly arranged at the bottoms of the rollers, and a telescopic rod (6) for pushing the support frame (7) to transversely move is arranged at one side of the support frame (7).

3. A graphite ore ball mill as in claim 1 wherein said feed port is provided with a removable dust guard.

4. A graphite ore ball mill according to claim 1, characterized in that the discharge opening (8) is provided with a sealing plate which can slide left and right, and a bolt (9) for fixing is provided between the sealing plate and the outer rotary drum (1).

5. A graphite ore ball mill as claimed in claim 1, characterized in that a first gear (12) is fixedly arranged on an output shaft of the second motor (11), a second gear is fixedly arranged on the outer rotary drum (1), and the first gear (12) is meshed with the second gear.

6. A graphite ore ball mill as claimed in claim 1, wherein said mesh structure comprises a plurality of transverse bars disposed about the axis of the inner rotary drum (2) and circular retaining rings juxtaposed along the axis of the inner rotary drum (2).

7. A graphite ore ball mill according to claim 1, characterized in that a space is provided between the axial direction of the inner rotating cylinder (2) and the axial direction of the outer rotating cylinder (1).