CN110586260A

CN110586260A - Adjustable ball mill

Info

Publication number: CN110586260A
Application number: CN201810599152.6A
Authority: CN
Inventors: 伍文享
Original assignee: Taishan Jin Hao Trading Co Ltd
Current assignee: Taishan Jin Hao Trading Co Ltd
Priority date: 2018-06-12
Filing date: 2018-06-12
Publication date: 2019-12-20

Abstract

The invention relates to an adjustable ball mill which comprises a cylinder, a motor and a base, wherein the cylinder is horizontally erected on the base, the motor is in driving connection with the cylinder, one end of the cylinder is provided with a feed inlet, the other end of the cylinder is provided with a first discharge outlet, the adjustable ball mill also comprises a screening device, a material returning device and a feeding device, the inlet end of the screening device is communicated with the discharge outlet of the cylinder, the screening device is provided with a second discharge outlet and a material returning outlet, one end of the material returning device is communicated with the material returning outlet, and the other end of the material returning device is communicated with the feed inlet. Through the cooperation that sets up sieve material device and feed back device at the barrel discharge end, select the material that accords with the standard and carry out the ejection of compact, the material that does not accord with the standard then retrieves the barrel and grinds once more, through the cooperation of feed mechanism and metering device, the feed rate of control barrel feed end makes the ball mill keep at best operating condition.

Description

Adjustable ball mill

Technical Field

The invention relates to the technical field of mineral machinery, in particular to an adjustable ball mill.

Background

The ball mill is a key device for crushing materials after the materials are crushed, is suitable for grinding various ores and other materials, and is widely applied to industries such as mineral separation, building materials, chemical engineering and the like.

The main working part of the ball mill is a rotary cylinder which is arranged on two large bearings and is horizontally placed, and a grinding body with certain shape and size is arranged in the cylinder. When the ball mill barrel rotates, the grinding body is attached to a lining plate of the barrel and taken away by the barrel under the action of inertia and centrifugal force and friction force, and when the grinding body is taken to a certain height, the grinding body is thrown off under the action of gravity of the grinding body, and the falling grinding body breaks the material in the barrel like a projectile.

However, the ball mill in the prior art discharges materials after being milled for one time, and the quality of the finished products is affected due to the fact that some materials are not sufficiently milled.

Disclosure of Invention

Based on the technical problem, the invention aims to provide an adjustable ball mill, which solves the technical problem of insufficient grinding of the ball mill in the prior art, and achieves the technical effect of fully grinding and discharging materials in the internal circulating grinding of the ball mill.

An adjustable ball mill comprises a cylinder, a motor and a base, wherein the cylinder is horizontally erected on the base, the motor is in driving connection with the cylinder, one end of the cylinder is provided with a feeding hole, the other end of the cylinder is provided with a first discharging hole, the adjustable ball mill also comprises a screening device, a material returning device, a feeding mechanism and a metering device, the inlet end of the screening device is communicated with the discharging hole of the cylinder, and the screening device is provided with a second discharging hole and a material returning hole; the inlet end of the metering device is communicated with the second discharge hole; one end of the feed back device is communicated with the feed back port, and the other end of the feed back device is communicated with the feed inlet; the feeding mechanism comprises a feeding hopper, a feeding roller, a feeding pipe and a feeding controller, the feeding roller is arranged between the feeding hopper and the feeding pipe, the feeding pipe is communicated with the feeding hole, the metering device is electrically connected with the input end of the feeding controller, and the output end of the feeding controller is electrically connected with the feeding roller.

As a further improvement of the adjustable ball mill, the screening device comprises a screening bin and a vibrating screen, the second discharge port is arranged below the vibrating screen, and the feed back port is arranged above the vibrating screen.

The ventilation device further comprises a dust collecting box, the dust collecting box is arranged between the exhaust pipe and the barrel, one end of the dust collecting box is communicated with the barrel, the other end of the dust collecting box is communicated with the exhaust pipe, and a dust filter screen is arranged at one end communicated with the exhaust pipe.

As a further improvement of the adjustable ball mill, the vibrating screen is obliquely arranged inside the screen storage bin.

As a further improvement of the adjustable ball mill, the feed back device comprises a feed back pipe and a conveying mechanism, wherein one end of the feed back pipe is communicated with the feed back port, and the other end of the feed back pipe is communicated with the feed inlet; the conveying mechanism is arranged in the feed back pipe.

As a further improvement of the adjustable ball mill, the conveying mechanism is a spiral feeding mechanism.

As a further improvement of the adjustable ball mill, at least one grinding ball is arranged in the cylinder body.

As a further improvement of the adjustable ball mill, a rubber buffer lining plate is arranged in the cylinder body.

As a further improvement of the adjustable ball mill, the adjustable ball mill further comprises a material collecting mechanism, and the material collecting mechanism is communicated with the second discharge hole.

As a further improvement of the adjustable ball mill, the feeding roller is provided with a plurality of convex teeth on the circumference.

Compared with the prior art, the adjustable ball mill has the following technical effects or advantages:

through the cooperation that sets up sieve material device and feed back device at the barrel discharge end, select the material that accords with the standard and carry out the ejection of compact, the material that does not accord with the standard then retrieves the barrel and grinds once more, so the circulation grinds, promotes the quality of material output greatly, has reduced the process of artifical screening, provides work efficiency, in addition, passes through feed mechanism and metering device's cooperation, the input speed of control barrel feed end makes the ball mill keep at best operating condition.

The grinding ball is arranged in the barrel, and the grinding balls in one or more different shapes or sizes collide and rub with the material in the barrel, so that the material can be ground more fully, and the grinding efficiency is improved.

The rubber buffer lining plate is arranged in the cylinder body and used for buffering impact force and friction generated by collision and prolonging the service life of the cylinder body.

The material collecting mechanism is arranged at the discharge end of the barrel body, so that the ground materials can be conveniently collected and transported for storage.

For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.

Drawings

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

FIG. 2 is a schematic structural diagram of a material sieving device according to the present invention;

FIG. 3 is a schematic structural diagram of the feeding mechanism of the present invention;

fig. 4 is a schematic cross-sectional view of a cartridge according to the present invention.

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, these embodiments are provided to convey the scope of the invention to those skilled in the art.

Unless otherwise defined, terms (including technical and scientific terms) used herein should be understood to have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Moreover, it will be understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The invention provides an adjustable ball mill, which is characterized in that a material screening device and a material returning device are arranged at the discharge end of a cylinder body to be matched, so that materials meeting the standard are screened out for discharge, materials not meeting the standard are recycled to the cylinder body for secondary grinding, and the grinding is performed in such a circulating way, so that the quality of material output is greatly improved, the manual screening process is reduced, and the working efficiency is improved.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

As shown in fig. 1 and fig. 3, fig. 1 is a schematic structural diagram of the adjustable ball mill of the present invention, and fig. 3 is a schematic structural diagram of the feeding mechanism of the present invention. An adjustable ball mill comprises a cylinder body 1, a motor 2, a base 3, a screening device 4, a material returning device 5, a feeding device 6 and a metering device 7, wherein the cylinder body 1 is horizontally erected on the base 3, the motor 2 is in driving connection with the cylinder body 1, one end of the cylinder body 1 is provided with a feeding hole 11, the other end of the cylinder body is provided with a first discharging hole 12, an inlet end of the screening device 4 is communicated with the discharging hole 12 of the cylinder body 1, and the screening device 4 is provided with a second discharging hole 41 and a material returning hole 42; the inlet end of the metering device 7 is communicated with the second discharge hole 41; one end of the feed back device 5 is communicated with the feed back port 42, and the other end is communicated with the feed inlet 11; the feeding mechanism 6 comprises a feeding funnel 61, a feeding roller 62, a feeding pipe 63 and a feeding controller (not shown), the feeding roller 62 is arranged between the feeding funnel 61 and the feeding pipe 63, the feeding pipe 63 is communicated with the feeding hole 11, the metering device 7 is electrically connected with the input end of the feeding controller, and the output end of the feeding controller is electrically connected with the feeding roller 62.

Barrel 1, the gyration drum of placing for the level, both ends are erect through the bearing on base 3, the inside rinding body that is used for grinding the material that is equipped with of barrel 1, its both ends have feed inlet 11 and first discharge gate 12 respectively, and the material gets into from feed inlet 11, through motor 2 drive barrel 1 is rotatory, makes the inside material of barrel 1 and rinding body fully collide and rub, and the material after the grinding is followed first discharge gate 12 is discharged.

The motor 2 is used for driving the cylinder 1 to rotate and is in transmission connection with the cylinder through a transmission part, a speed reducer can be arranged between the motor 2 and the cylinder 1, and power is transmitted to the cylinder 1 after speed reduction through the speed reducer, so that the cylinder 1 keeps a proper rotating speed.

And the base 3 is used for supporting the barrel body 1 and other components and providing a stable working environment for the barrel body 1.

And the screening device 4 is provided with a second discharge hole 41 and a return hole 42, the feeding end of the screening device 4 is communicated with the first discharge hole 12 and used for screening the materials discharged from the first discharge hole 12, the materials meeting the standard are discharged from the second discharge hole 41, and the materials not meeting the standard are discharged from the return hole 42.

Specifically, as shown in fig. 2, fig. 2 is a schematic structural diagram of the screening device according to the present invention. The screening device 4 comprises a screening bin 401 and a vibrating screen 402, the second discharge port is arranged below the vibrating screen, and the feed back port is arranged above the vibrating screen. The material discharged from the first discharge port 12 falls onto the vibration screen 402, and the vibration screen 402 vibrates to filter the sufficiently ground material, i.e. the material meeting the standard, to the lower side, and then the material is discharged from the second discharge port 42; and the materials which are not ground fine enough are blocked on the vibrating screen 402 and are gradually discharged from the feed back opening 42 to enter the feed back mechanism 5 in the vibrating process.

As a preferred embodiment, the vibrating screen 402 is obliquely arranged in the screening bin 401, so that the screening efficiency of the materials is higher.

And the material returning device 5 is communicated with the material returning port 42 of the screening device 4 and is used for recovering the materials which do not meet the standard again and conveying the materials into the barrel 1 from the feeding port 11 for secondary grinding.

Specifically, the material returning device 5 comprises a material returning pipe and a conveying mechanism, one end of the material returning pipe is communicated with the material returning opening 42, the other end of the material returning pipe is communicated with the material inlet 11, the conveying mechanism is arranged in the material returning pipe, and the metering mechanism is arranged at one end, close to the material returning opening, of the material returning pipe and is electrically connected with the input end of the feeding controller. When the material which does not meet the standard enters the feed back pipe from the feed back port 42, the material of the part is conveyed by the conveying mechanism to enter the cylinder 1 again for grinding until the material meets the standard and passes through the vibrating screen 402.

The feeding device 6 comprises a feeding hopper 61, a feeding roller 62, a feeding pipe 63 and a feeding controller (not shown), wherein the feeding roller 62 is arranged between the feeding hopper 61 and the feeding pipe 63, the feeding pipe 63 is communicated with the feeding hole 11, and the output end of the feeding controller is electrically connected with the feeding roller 62.

Specifically, the feeding roller 62 is blocked at the outlet of the feeding funnel 61, the material at the bottom of the feeding funnel 61 is brought into the feeding pipe 63 by the rotational friction, so that the feeding is realized, and the feeding speed can be controlled by controlling the rotational speed of the feeding roller 62 through the feeding controller.

As a preferred embodiment, the conveying mechanism is a spiral feeding mechanism which conveys materials forwards through the rotation of the spiral blades, and the spiral feeding mechanism has the characteristics of stability and difficulty in arching.

In a preferred embodiment, the feeding roller 62 is provided with a plurality of convex teeth on the circumference, and the convex teeth can assist the feeding roller 62 to stir the material and perform well-controlled feeding of the material.

As a preferred embodiment, at least one kind of grinding balls are arranged in the cylinder 1, the grinding balls can be two or more grinding balls with different shapes or sizes, the grinding balls are grinding bodies, and the grinding balls with different sizes or shapes collide and rub with materials in the cylinder 1, so that the grinding efficiency of the materials can be fully improved.

As a preferred embodiment, as shown in fig. 4, fig. 4 is a schematic cross-sectional view of the cylinder according to the present invention. The rubber buffer lining plate 9 is arranged in the cylinder body 1, and because the cylinder body 1 is internally filled with a grinding body and materials, and the inner wall of the cylinder body 1 bears huge impact and friction, the rubber buffer lining plate is arranged in the cylinder body 1 and used for buffering impact force and friction generated by collision in order to protect the cylinder body 1 and prolong the service life of the cylinder body 1.

Specifically, the feeding mechanism comprises a feeding funnel 61 and a feeding pipe 62, wherein one end of the feeding pipe 62 is communicated with the feeding hole 11, and the other end of the feeding pipe is upwards connected with the feeding funnel 61. Material is fed from the feed hopper 61 through the feed tube 62 into the bowl 1.

And a metering device 7, wherein the metering device 7 is used for measuring the material amount discharged from the second discharge hole 41 and sending a signal obtained by metering to the feeding controller, and the feeding controller controls the material amount below the feeding funnel 61 according to the discharge amount, so that the material amount in the cylinder body 1 is kept at a certain total amount.

Specifically, the metering device 7 is a metering device commonly used in the existing production process, such as a constant volume metering device, a weighing metering device, and the like.

As the preferred embodiment, this application embodiment still includes material collection mechanism 8, material collection mechanism 8 with the exit end intercommunication of metering device 7 for collect grind abundant and accord with the material of standard, its base still can be provided with the gyro wheel, conveniently transports other places after filling with the material.

The working principle is as follows: the materials are put in from the feeding hopper 61, the materials enter the barrel 1 through the feeding pipe 62, the barrel 1 rotates under the driving of the motor 2, when the barrel 1 rotates, grinding balls are attached to the inner wall of the barrel 1 to rotate along with the barrel 1 under the action of centrifugal force and friction force generated by the inner wall surface of the barrel, the grinding balls are taken to a certain height and fall freely under the action of gravity, the materials in the barrel 1 are impacted to crush the materials when falling, the materials are forced to flow due to the difference of material surface between the materials at the feeding end and the discharging end because the feeding port 11 feeds new materials continuously, the materials are discharged from the first discharging port 12 and enter the screening mechanism 4, then the fully ground materials pass through the vibrating screen 402 and are discharged from the second discharging port 41 to the material collecting mechanism 8 under the action of the vibrating screen 402, and the materials which are not ground sufficiently are vibrated on the screen 402 and discharged from the material returning port 42, the materials are conveyed by the feed-back mechanism 5 to enter the cylinder 1 again for grinding, and the grinding is circulated in such a way until the grinding is sufficient and passes through the vibrating screen 402.

Still set up feed mechanism at barrel feed inlet play, it is more convenient to feed during the auxiliary operation.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides an adjustable ball mill, includes barrel, motor and base, the barrel level erect on the base, the motor with the barrel drive is connected, barrel one end is provided with the feed inlet, and the other end is provided with first discharge gate, its characterized in that: the material screening device is provided with a second discharge hole and a feed back hole; the inlet end of the metering device is communicated with the second discharge hole; one end of the feed back device is communicated with the feed back port, and the other end of the feed back device is communicated with the feed inlet; the feeding mechanism comprises a feeding hopper, a feeding roller, a feeding pipe and a feeding controller, the feeding roller is arranged between the feeding hopper and the feeding pipe, the feeding pipe is communicated with the feeding hole, the metering device is electrically connected with the input end of the feeding controller, and the output end of the feeding controller is electrically connected with the feeding roller.

2. The tunable ball mill of claim 1, wherein: the material sieving device comprises a material sieving bin and a vibrating screen, the second discharge port is arranged below the vibrating screen, and the feed back port is arranged above the vibrating screen.

3. The adjustable ball mill according to claim 2, characterized in that: the vibration screen is obliquely arranged inside the screen storage bin.

4. The tunable ball mill of claim 1, wherein: the feed back device comprises a feed back pipe and a conveying mechanism, wherein one end of the feed back pipe is communicated with the feed back port, and the other end of the feed back pipe is communicated with the feed inlet; the conveying mechanism is arranged in the feed back pipe.

5. The tunable ball mill of claim 4, wherein: the conveying mechanism is a spiral feeding mechanism.

6. The tunable ball mill of claim 1, wherein: at least one grinding ball is arranged in the cylinder body.

7. The tunable ball mill of claim 1, wherein: and a rubber buffer lining plate is arranged in the cylinder body.

8. The tunable ball mill of claim 1, wherein: the metering device is characterized by further comprising a material collecting mechanism, wherein the material collecting mechanism is communicated with the outlet end of the metering device.

9. The tunable ball mill of claim 1, wherein: the feeding roller is provided with a plurality of convex teeth on the circumference.