Graphite ore ball mill

Abstract

The utility model provides a graphite ore ball mill which comprises 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 arranged, the inner rotating cylinder is arranged in the outer rotating cylinder, the axis of the inner rotating cylinder is parallel to that of the outer rotating cylinder, and annular baffles are fixedly arranged at the two ends of the outer rotating cylinder. The annular baffle is rotationally connected with the inner rotating cylinder, the two ends of the inner rotating cylinder extend out of the outer rotating cylinder, the part, located in the outer rotating cylinder, of the inner rotating cylinder is of a net structure, and the other end of the inner rotating cylinder is fixedly connected with an output shaft of the first motor; a plurality of supporting wheels are arranged below the two sides of the outer rotating cylinder and the two sides of the inner rotating cylinder, and the second motor drives the outer rotating cylinder to rotate. According to the utility model, the problem that the crushing speed of blocky structures or large particles is delayed when powder and the blocky structures or large particles are mixed together is solved, and the grinding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball mill technical field especially relates to a graphite ore ball mill. BACKGROUND

[0002] Ball mill is by horizontal cylinder, inlet and outlet material hollow shaft and mill head etc. Part composition, the cylinder is long cylinder, the cylinder is equipped with grinding body, the cylinder is made of steel plate, has steel lining plate with the cylinder fixed, grinding body is generally steel ball, and according to different diameter and certain proportion is loaded into the cylinder, grinding body can also use steel section. According to the granularity of grinding material, material is loaded into the cylinder by ball mill feed end hollow shaft, when the cylinder of ball mill rotates, grinding body is attached to the cylinder lining plate due to inertia and centrifugal force, the action of friction, makes it be taken away by the cylinder, when being taken to a certain height, due to its own gravity and being thrown, the falling grinding body like projectile will crush the material in the cylinder.

[0003] Part of ore is ground into powder after being broken by grinding ball, and part of ore is in block structure or large particle, when powder and unbroken part are together, the crushing efficiency of block structure or large particle is reduced, thereby the grinding speed is delayed. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a graphite ore ball mill, which solves the problem that the crushing speed of block structure or large particle is delayed when powder and block structure or large particle are together, thereby the grinding efficiency is reduced.

[0005] According to the embodiment of the utility model, a graphite ore ball mill, including big grinding ball, small grinding ball, outer rotating cylinder, inner rotating cylinder, first motor and second motor, the outer rotating cylinder is horizontally arranged, the inner rotating cylinder is arranged in the outer rotating cylinder and the axis is parallel, and the both ends of the outer rotating cylinder are fixedly provided with annular baffle, the annular baffle is rotatably connected with the inner rotating cylinder, and the both ends of the inner rotating cylinder extend to the outside of the outer rotating cylinder, the part of the inner rotating cylinder in the outer rotating cylinder is of mesh structure, the outside of one end of the inner rotating cylinder is provided with horn-shaped feed inlet opening inwards, the other end of the inner rotating cylinder is fixedly connected with the output shaft of the first motor, a plurality of supporting wheels are arranged on the both sides of the outer rotating cylinder and the inner rotating cylinder, and the second motor drives the outer rotating cylinder to rotate, the big grinding ball and the small grinding ball are arranged in the inner rotating cylinder and the outer rotating cylinder respectively, and the cylinder wall of the outer rotating cylinder is provided with closable discharge port.

[0006] The technical principle of the utility model is that: raw materials first enter the inner rotating cylinder and are broken into smaller particles by big grinding balls, and then overflow into the outer rotating cylinder provided with small grinding balls, and then are secondarily ground, so that the grading type grinding accelerates the grinding efficiency.

[0007] Preferably, one end of the feeding port is provided with a hopper, the bottom of the hopper is provided with a supporting frame with a roller, the bottom of the roller is fixedly provided with a guide rail, and one side of the supporting frame is provided with a telescopic rod for pushing the supporting frame to move laterally.

[0008] Preferably, the feeding port is provided with a detachable dustproof plate.

[0009] Preferably, the discharging port is provided with a seal plate that can slide left and right, and a bolt for fixing is arranged between the seal plate and the outer rotating cylinder.

[0010] Preferably, a first gear is fixedly arranged on the output shaft of the second motor, a second gear is fixedly arranged on the outer rotating cylinder, and the first gear and the second gear are engaged.

[0011] Preferably, the mesh structure comprises a plurality of transverse rods arranged around the axis of the inner rotating cylinder and a circular fixing ring arranged along the axis of the inner rotating cylinder.

[0012] Preferably, a gap is arranged between the axis of the inner rotating cylinder and the axis of the outer rotating cylinder.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the utility model improves the work efficiency through the mode of one-stage coarse grinding and two-stage fine grinding, coarse particles are continuously broken in the inner cylinder, fine particles are timely transferred to the outer cylinder, and energy waste caused by repeated grinding is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an internal structure schematic view of the utility model.

[0015] Figure 2 It is a side view of the utility model.

[0016] Figure 3 It is a second motor connection schematic view of the utility model.

[0017] In the above drawings: 1, outer rotating cylinder; 2, inner rotating cylinder; 3, small grinding ball; 4, large grinding ball; 5, supporting wheel; 6, telescopic rod; 7, supporting frame; 8, discharging port; 9, bolt; 10, first motor; 11, second motor; 12, first gear; 13, hopper; 14, guide rail. DETAILED DESCRIPTION

[0018] The technical scheme in the utility model will be further described below in combination with the drawings and embodiments.

[0019] As Figure 1 , 2The utility model discloses a graphite ore ball mill as shown in figures 1 to 3, and the utility model discloses an embodiment of the utility model provides a kind of graphite ore ball mill, including big grinding ball 4, small grinding ball 3, outer rotating cylinder 1, inner rotating cylinder 2, first motor 10 and second motor 11, the outer rotating cylinder 1 is horizontally arranged, the inner rotating cylinder 2 is arranged in the outer rotating cylinder 1 inside and axis is parallel, the both ends of outer rotating cylinder 1 are fixedly provided with annular baffle, annular baffle avoids dust or material from the both ends of outer rotating cylinder 1 overflow.The annular baffle and the inner rotating cylinder 2 are rotatably connected, the both ends of the inner rotating cylinder 2 are all extended to the outside of outer rotating cylinder 1, it is convenient to support and feed.The part of inner rotating cylinder 2 in the outer rotating cylinder 1 is mesh structure, the gap on mesh structure is less than the size of big grinding ball 4.The outside of one end of inner rotating cylinder 2 is provided with the feeding port of horn shape with opening inward, when inner rotating cylinder 2 rotates, graphite ore overflow to feeding port again will return to inner rotating cylinder 2.The other end of inner rotating cylinder 2 is fixedly connected with the output shaft of first motor 10, the body of first motor 10 is fixedly arranged, the output shaft of first motor 10 and the axis of inner rotating cylinder 2 are coaxial.The both sides below of the outer rotating cylinder 1, inner rotating cylinder 2 are provided with a plurality of support wheels 5, when outer rotating cylinder 1, inner rotating cylinder 2 rotate, can keep position fixed.The second motor 11 drives the outer rotating cylinder 1 to rotate.The big grinding ball 4, small grinding ball 3 are arranged in the inner rotating cylinder 2, outer rotating cylinder 1 inside.The cylinder wall of outer rotating cylinder 1 is provided with closable discharge port 8.In this embodiment, material enters from the feeding port of one end of inner rotating cylinder 2, and is discharged from discharge port 8 after being ground in turn through inner rotating cylinder 2 and outer rotating cylinder 1.Crude grinding and fine grinding use different rotating speeds, reduce energy consumption and invalid crushing.

[0020] Preferably, one end of the feeding port is provided with a hopper 13, and the bottom of the hopper 13 is provided with a support frame 7 with rollers. The bottom of the roller is fixedly provided with a guide rail 14. One side of the support frame 7 is provided with a telescopic rod 6 for pushing the support frame 7 to move laterally. In this embodiment, the discharge port of the hopper 13 extends to one side, and when it is necessary to supply material to the inner rotating cylinder 2, the pushing rod is extended so that the bottom of the hopper 13 enters the inside of the feeding port, and the material discharged from the bottom of the hopper 13 will not overflow.

[0021] Preferably, the feeding port is provided with a detachable dustproof plate, so that dust will not overflow when the inner rotating cylinder 2 rotates. In this embodiment, the dustproof plate is fixed to the end of the inner rotating cylinder 2 by using bolts 9.

[0022] Preferably, the discharge port 8 is provided with a seal plate that can slide left and right, and the seal plate and the outer rotating cylinder 1 are provided with bolts 9 for fixation. After grinding is completed, the seal plate is pushed away, and the powder can be discharged.

[0023] As Figure 3As shown, as preferred, a first gear 12 is fixedly arranged on the output shaft of the second motor 11, and a second gear is fixedly arranged on the outer rotating cylinder 1, and the first gear 12 and the second gear are engaged. In the embodiment, a speed changer is arranged on the output shaft of the second motor 11.

[0024] As preferred, the net structure comprises a plurality of transverse rods arranged around the axis of the inner rotating cylinder 2 and a plurality of circular fixed rings arranged along the axis of the inner rotating cylinder 2. The net structure is simple in structure and facilitates the falling of the crushed materials.

[0025] As preferred, a gap is arranged between the axis of the inner rotating cylinder 2 and the axis of the outer rotating cylinder 1. The maximum distance between the outer wall of the inner rotating cylinder 2 and the outer rotating cylinder 1 is arranged at the lower side, and corresponds to the rotating direction of the outer rotating cylinder 1, so that the materials can quickly fall.

[0026] Finally, it is to be explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A graphite ore ball mill characterized by: The application relates to a double-cylinder ball mill, which comprises large grinding balls (4), small grinding balls (3), an outer rotating cylinder (1), an inner rotating cylinder (2), a first motor (10) and a second motor (11), the outer rotating cylinder (1) is horizontally arranged, the inner rotating cylinder (2) is arranged inside the outer rotating cylinder (1) and has an axis parallel to the outer rotating cylinder (1), ring-shaped baffles are fixedly arranged at two ends of the outer rotating cylinder (1), the ring-shaped baffles are rotationally connected with the inner rotating cylinder (2), both ends of the inner rotating cylinder (2) extend to the outside of the outer rotating cylinder (1), the part of the inner rotating cylinder (2) located inside the outer rotating cylinder (1) is of a mesh structure, the outer part of one end of the inner rotating cylinder (2) is provided with a horn-shaped feeding port opening inward, the other end of the inner rotating cylinder (2) is fixedly connected with the output shaft of the first motor (10), a plurality of supporting wheels (5) are arranged below the two sides of the outer rotating cylinder (1) and the inner rotating cylinder (2), and the second motor (11) drives the outer rotating cylinder (1) to rotate; the large grinding balls (4) and the small grinding balls (3) are arranged inside the inner rotating cylinder (2) and the outer rotating cylinder (1) respectively; a closable discharging port (8) is arranged on the cylinder wall of the outer rotating cylinder (1).

2. A graphite ore ball mill as claimed in claim 1, wherein: One end of the feeding port is provided with a hopper (13), the bottom of the hopper (13) is provided with a supporting frame (7) with a roller, the bottom of the roller is fixedly provided with a guide rail (14), and one side of the supporting frame (7) is provided with a telescopic rod (6) used for pushing the supporting frame (7) to move laterally.

3. A graphite ore ball mill as claimed in claim 1, wherein: The feeding port is provided with a detachable dustproof plate.

4. A graphite ore ball mill as claimed in claim 1, wherein: The discharging port (8) is provided with a seal plate which can slide leftward and rightward, and the seal plate and the outer rotating cylinder (1) are provided with a bolt (9) used for fixation.

5. A graphite ore ball mill as claimed in claim 1, wherein: A first gear (12) is fixedly arranged on the output shaft of the second motor (11), a second gear is fixedly arranged on the outer rotating cylinder (1), and the first gear (12) and the second gear are engaged.

6. A graphite ore ball mill as claimed in claim 1, wherein: The mesh structure comprises a plurality of transverse rods arranged around the axis of the inner rotating cylinder (2) and a plurality of circular fixing rings arranged along the axis of the inner rotating cylinder (2) and in parallel.

7. A graphite ore ball mill as claimed in claim 1, wherein: A spacing is arranged between the axis direction of the inner rotating cylinder (2) and the axis direction of the outer rotating cylinder (1).

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