CN213133422U

CN213133422U - Ball mill

Info

Publication number: CN213133422U
Application number: CN202021722445.8U
Authority: CN
Inventors: 梁泽来; 卢军; 佟文昌
Original assignee: Liaoning Jinfeng Gold Mine Industry Co ltd
Current assignee: Liaoning Jinfeng Gold Mine Industry Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-05-07
Anticipated expiration: 2030-08-18

Abstract

The utility model relates to a ball mill, the inside interior bushing that is equipped with of shell body, the inside center of rotation axle that is equipped with of interior bushing, be equipped with the eccentric wheel on the center of rotation axle, the eccentric wheel outside is equipped with the rack, the rack sets up along the eccentric wheel axial, is equipped with the sword strip on the interior bushing inner wall, the sword strip sets up along interior bushing axial, the center of rotation axle both sides are equipped with swivel bearing respectively, on second bearing roller was located to swivel bearing's bearing frame, the second motor was connected to center of rotation. The utility model discloses eccentric wheel and grinding ball, treat that broken ore plays and mill, stirring, striking effect, have reduced the gathering of material in the inside lining bottom. The crushing efficiency is improved. The cutter bars play a strong impact role in ore crushing, so that the ore crushing efficiency is further improved.

Description

Ball mill

Technical Field

The utility model relates to a breaker technical field, concretely relates to ball mill.

Background

The end covers are arranged at two ends of a cylinder body of the ball mill, the ball mill is rotated by a motor through a gear arranged on the cylinder body, grinding balls and ground ores are arranged in the cylinder body, and the total loading amount of the grinding balls and the ground ores is 25-45% of the effective volume of the cylinder body. When the barrel body rotates around the horizontal axis at a specified rotating speed, the ore grinding medium and the ore in the barrel body are lifted to a certain height by the barrel body lining plate under the action of centrifugal force and friction force, and then are separated from the barrel wall to freely shed or shed, so that the ore is impacted and ground to be crushed.

The conventional ball mill only crushes ores by the quick impact of ores with a cylinder wall and grinding balls, and the crushing efficiency of the conventional ball mill has certain limitation.

Disclosure of Invention

An object of the utility model is to solve above-mentioned problem, provide the ball mill, the crushing efficiency of ball mill is improved.

In order to solve the above problem, the utility model discloses a technical scheme as follows:

the ball mill comprises an outer shell and an inner lining barrel, wherein the inner lining barrel is arranged in the outer shell, sieve holes are arranged on the inner lining barrel, grinding balls are arranged in the inner lining barrel, the end parts of the outer shell and the inner lining barrel are fixed on an end plate, a material inlet and a material outlet are arranged on the outer shell, the material inlet is communicated with the inner lining barrel, cover plates are respectively arranged on the material inlet and the material outlet, a first carrier roller and an outer gear ring are arranged outside the outer shell, the outer gear ring is connected with a driving gear on an output shaft of a first motor, the novel roller type rotary drum is characterized in that a rotary central shaft is arranged inside the lining barrel, an eccentric wheel is arranged on the rotary central shaft, a rack is arranged outside the eccentric wheel, the rack is arranged along the axial direction of the eccentric wheel, a cutter bar is arranged on the inner wall of the lining barrel, the cutter bar is arranged along the axial direction of the lining barrel, rotary bearings are respectively arranged on two sides of the rotary central shaft, bearing seats of the rotary bearings are arranged on a second carrier roller, and one end of the rotary central shaft is connected.

Furthermore, the end face of the lining cylinder is a regular polygon, the number of edges of the lining cylinder is not less than 6, and the knife strip is arranged at the joint of the two edges.

The utility model has the advantages that:

(1) the shell body outside is equipped with bearing roller and outer ring gear, and outer ring gear passes through chain and the driving gear connection on the first motor output shaft, and under the drive of first motor, the shell body rotates, and interior bushing is rotatory, and the grinding ball freely cascades down or throws down with treating broken ore inside the interior bushing, makes the ore receive the impact and smashes.

(2) An eccentric wheel is arranged on the rotating central shaft, a rack is arranged outside the eccentric wheel, and the rack is arranged along the axial direction of the eccentric wheel; the rotation center axle is independently rotatory, and the eccentric wheel plays with the grinding ball, treats broken ore and grinds, stirring, striking effect, has reduced the gathering of material in the inside lining bottom, has improved crushing efficiency.

(3) Be equipped with the sword strip on the inside wall of lining section of thick bamboo, the sword strip sets up along lining section of thick bamboo axial, and the sword strip plays strong striking effect to treating broken ore, has further improved the crushing efficiency of ore.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a ball mill according to the present invention;

FIG. 2 is a side view of the interior of the ball mill of the present invention;

reference numerals: the device comprises an outer shell-1, an inner lining barrel-2, a cutter bar-21, an end plate-3, a material inlet-4, a material outlet-5, a carrier roller-71, an outer gear ring-72, a chain-73, a first motor-74, a rotating central shaft-81, an eccentric wheel-82, a rack-83, a rotating bearing-84, a second carrier roller-85 and a second motor-86.

Detailed Description

The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make more clear and definite definitions of the scope of the present invention.

Referring to the attached figure 1 of the specification, the ball mill comprises an outer shell 1 and a lining cylinder 2, wherein the lining cylinder 2 is arranged inside the outer shell 1, sieve holes are formed in the lining cylinder 2, and grinding balls are arranged inside the lining cylinder 2. The ore and the grinding balls are loaded in the inner lining cylinder, when the outer shell and the inner lining cylinder rotate, the grinding balls and the ore to be crushed freely fall or are thrown in the inner lining cylinder, and the ore is crushed by impact.

Referring to the attached figure 1 of the specification, the end parts of the outer shell 1 and the inner lining barrel 2 are fixed on the end plate 3, the outer shell and the inner lining barrel rotate together, and crushed material particles enter the outer shell through the sieve holes. The outer shell 1 is provided with a material input opening 4 and a material output opening 5, the material input opening 4 is communicated with the lining barrel 2, the material input opening 4 and the material output opening 5 are respectively provided with a cover plate, the material input opening 4 is used for inputting ore, and the material output opening is used for discharging the crushed material.

Referring to the attached figure 1, a first carrier roller 71 and an outer gear ring 72 are arranged outside the outer shell 1, the outer gear ring 72 is connected with a driving gear on an output shaft of a first motor 74 through a chain 73, the first motor drives the outer shell to rotate around a rotating central shaft, and the outer shell drives the inner lining cylinder to rotate.

Referring to the attached drawing 2 in the specification, a rotation center shaft 81 is arranged inside the inner liner 2, an eccentric 82 is arranged on the rotation center shaft 81, a rack 83 is arranged outside the eccentric 82, the rack 83 is arranged along the axial direction of the eccentric 82, a knife strip 21 is arranged on the inner wall of the inner liner 2, the knife strip 21 is arranged along the axial direction of the inner liner 2, two sides of the rotation center shaft 81 are respectively provided with a rotation bearing 84, a bearing seat of the rotation bearing 84 is arranged on a second carrier roller 85, and one end of the rotation center shaft 81 is connected with a second motor 86. The second motor drives the rotation center axle alone and rotates, and the rotation center axle drives the eccentric wheel and rotates, and the eccentric wheel plays the grinding effect to the lining section of thick bamboo at rotatory in-process, and the rack plays to grind, stirring, striking effect to the ore, has reduced the gathering of material in the inside lining bottom, has improved crushing efficiency. The cutter bars play a strong impact role in ore crushing, so that the ore crushing efficiency is further improved.

Referring to the attached figure 2 in the specification, further, the end surface of the lining cylinder 2 is a regular polygon, the number of sides of the regular polygon is not less than 6, and the knife strip 21 is arranged at the joint of the two sides. In the embodiment, the lining barrel with the regular octagonal end face is adopted, the impact frequency with ores is increased on each plane inside the lining barrel, the cutter bars play a role in impacting the ores and playing a role in reinforcing ribs for connecting each side of the lining barrel, and the joints of each side of the lining barrel are prevented from cracking.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The ball mill comprises an outer shell and an inner lining barrel, wherein the inner lining barrel is arranged inside the outer shell, sieve holes are arranged on the inner lining barrel, grinding balls are arranged inside the inner lining barrel, the end parts of the outer shell and the inner lining barrel are fixed on an end plate, a material feeding port and a material outlet are arranged on the outer shell, the material feeding port penetrates through the inner lining barrel, cover plates are respectively arranged on the material feeding port and the material outlet, a first carrier roller and an outer gear ring are arranged outside the outer shell, the outer gear ring is connected with a driving gear on an output shaft of a first motor through a chain, the ball mill is characterized in that a rotating central shaft is arranged inside the inner lining barrel, an eccentric wheel is arranged on the rotating central shaft, a rack is arranged outside the eccentric wheel, the rack is arranged along the axial direction of the eccentric wheel, a cutter bar, one end of the rotating central shaft is connected with a second motor.

2. The ball mill according to claim 1, wherein the end surface of the inner liner cylinder is a regular polygon with not less than 6 sides, and the blade bars are arranged at the connection part of the two sides.