CN218872425U - Vertical grinder - Google Patents

Abstract

The utility model discloses a vertical grinding machine, including barrel and grinding assembly, the barrel is formed with the feed inlet, grinds chamber and discharge gate, and the feed inlet is located the lower extreme of barrel, and the discharge gate is located the upper end of barrel. The grinding assembly is arranged in the grinding cavity and comprises a main shaft, a rotor and a plurality of grinding blades which are arranged on the outer peripheral wall of the rotor in a surrounding mode at intervals; the grinding blades positioned at the lower part of the rotor are obliquely arranged, the upper surfaces of the grinding blades and the horizontal plane form a first inclination angle with an opening facing to the front of the rotation direction of the rotor, and the first inclination angle is an acute angle; and the grinding blades are positioned at the lower part of the rotor and are used for guiding grinding media and materials at the bottom of the grinding cavity to the top of the grinding cavity when rotating. The utility model discloses improve vertical grinding machine's rotor structure, solved the accumulational problem of grinding medium.

Description

Vertical grinder

Technical Field

The utility model relates to a grinder technical field especially relates to a vertical grinding machine.

Background

The vertical grinder is a grinding dispersion device with a very wide application range, and because the material properties, the fineness requirements and the process conditions of different products are greatly different, the fineness requirements can be adjusted by adding or subtracting grinding media in a proper amount. The grinding device is widely applied to high-efficiency grinding equipment in the industries of paint, dye, printing ink, pesticide, magnetic tapes, papermaking, leather, chemical engineering and the like, and particularly in the manufacturing industry of new energy lithium battery slurry. The vertical grinder has the advantages of simple structure, stable starting, high continuous production efficiency, convenient color changing, easy cleaning, simple operation and the like.

The rotor that current vertical mill machine includes the barrel and locates the barrel, and the barrel both ends lid is equipped with the end cover, has the space between the end cover that is located the barrel lower extreme and the rotor bottom, and grinding medium receives the bottom of gravity influence deposit in grinding chamber, and the grinding medium distributes inequality and can influence grinding efficiency for the material grinds inadequately, and grinding medium piles up and also causes rotor wearing and tearing aggravation, rotor running resistance grow card even die.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vertical grinding machine aims at solving the problem that grinding medium piles up in grinding chamber bottom to improve the sufficiency that the material ground, promote grinding efficiency, and improve and grind the effect.

In order to achieve the above object, the utility model provides a vertical grinder, include:

the grinding device comprises a barrel, a grinding device and a grinding device, wherein a feed port, a grinding cavity communicated with the feed port and a discharge port communicated with the grinding cavity are formed in the barrel;

the grinding assembly is arranged in the grinding cavity and comprises a main shaft, a rotor sleeved on the main shaft and a plurality of grinding blades which are arranged on the peripheral wall of the rotor in a surrounding mode at intervals;

the grinding blades positioned at the lower part of the rotor are obliquely arranged, the upper surfaces of the grinding blades and a horizontal plane form a first inclination angle with an opening facing the front of the rotation direction of the rotor, and the first inclination angle is an acute angle; and the grinding blades are positioned at the lower part of the rotor and are used for guiding the grinding media and materials at the bottom of the grinding cavity to the top of the grinding cavity when rotating.

Optionally, the grinding blade located at the upper part of the rotor is arranged obliquely, and the upper surface of the grinding blade and the horizontal plane form a second inclination angle with an opening facing away from the front of the rotation direction of the rotor, where the second inclination angle is an acute angle; grinding vanes located in the upper part of the rotor for directing the grinding media in the top of the grinding chamber to the bottom of the grinding chamber while rotating.

Optionally, the grinding vanes in the middle of the rotor are arranged parallel to the horizontal plane.

Optionally, the grinding blades in the middle and upper part of the rotor are both arranged parallel to the horizontal plane.

Optionally, the inner wall of the cylinder is provided with a plurality of bosses arranged around at intervals, and the bosses are used for guiding the grinding media and the materials at the top of the grinding cavity to the bottom of the grinding cavity when the grinding blades rotate.

Optionally, the boss is disposed in an inclined manner, and a third inclination angle, which is an acute angle and opens toward the front of the rotation direction of the rotor, is formed between the lower surface of the boss and the horizontal plane.

Optionally, a central groove and a plurality of through holes communicating the central groove with the grinding cavity are formed in the rotor; the grinding assembly further comprises a discharge screen, the discharge screen is fixed to the discharge port through a mounting seat, and the discharge screen is arranged in the central groove, and a screen end cover is arranged at the end of the discharge screen.

Optionally, the gap aperture of the discharge screen is adapted to be smaller than the diameter of the grinding media and larger than the diameter of the ground material particles;

the feeding port is internally provided with a sieve plate, the sieve plate is provided with at least one gap, and the width of the gap is suitable for being smaller than the diameter of the grinding medium and larger than the diameter of the material.

Optionally, the grinding mill further comprises a drive mechanism connected to the spindle for driving the spindle in rotation.

Optionally, the barrel comprises an inner barrel and an outer barrel sleeved outside the inner barrel, the grinding cavity is arranged in the inner barrel, a cooling cavity is formed between the inner barrel and the outer barrel, and the cooling cavity is used for filling a cooling medium;

the outer cylinder is provided with a medium inlet for the cooling medium to flow in and a medium outlet for the cooling medium to flow out.

In the technical scheme of the utility model, the vertical grinder comprises a cylinder and a grinding component; the barrel is provided with a feed inlet, a grinding cavity and a discharge outlet, the feed inlet is positioned at the lower end of the barrel, and the discharge outlet is positioned at the upper end of the barrel; the grinding assembly is arranged in the grinding cavity and comprises a main shaft, a rotor sleeved on the main shaft and a plurality of grinding blades arranged on the outer peripheral wall of the rotor in a surrounding mode at intervals; the grinding blades positioned at the lower part of the rotor are obliquely arranged, the upper surfaces of the grinding blades and a horizontal plane form a first inclination angle with an opening facing to the front of the rotation direction of the rotor, and the first inclination angle is an acute angle; and the grinding blades are positioned at the lower part of the rotor and are used for guiding the grinding media and materials at the bottom of the grinding cavity to the top of the grinding cavity when rotating.

It will be appreciated that the grinding vanes in the lower part of the rotor are arranged obliquely and the upper surfaces of the grinding vanes and the horizontal plane form a first angle of inclination which opens towards the front in the direction of rotation of the rotor, the first angle of inclination being an acute angle and, when the main shaft rotates, the grinding vanes in the lower part of the rotor rotate with it and enable the material entering from the feed opening and the grinding medium in the grinding chamber to spiral upwards from the bottom of the grinding chamber towards the top of the grinding chamber, during which the material is ground into particles under the impact of the grinding medium and flows out through the discharge opening. Therefore, the grinding medium is prevented from being accumulated at the bottom of the grinding cavity, so that the sufficiency of grinding the material is improved, the grinding efficiency is improved, and the grinding effect is improved.

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 embodiments or the prior art descriptions 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 the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of the vertical grinder of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a schematic view of a rotor and grinding blades thereon according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a barrel in an embodiment of the vertical grinder of the present invention;

fig. 5 is a sectional view at B-B in fig. 4.

The reference numbers illustrate:

10. a cylinder body; 20. a grinding assembly; 10a, a feed inlet; 10b, a grinding cavity; 10c, a discharge hole; 21. a main shaft; 22. a rotor; 23. grinding the blade; 11. a first end cap; 12. a second end cap; 13. a sieve plate; 14. a mounting seat; 15. a discharging screen; 16. a screen end cover; 22a, a central slot; 22b, a through hole; 110. an inner barrel; 120. an outer cylinder; 10d, a cooling cavity; alpha, a first inclination angle; beta, a second inclination angle; gamma, a third inclination angle; 101. and (4) a boss.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a vertical grinding machine, especially the vertical grinding machine that is used for grinding new forms of energy lithium cell thick liquids, this vertical grinding machine also can be applied to other fields, and here is not limited.

Referring to fig. 1 to 3, in an embodiment of the present invention, the vertical grinder includes a barrel 10 and a grinding assembly 20, the barrel 10 is formed with a feed inlet 10a, a grinding chamber 10b and a discharge outlet 10c, the feed inlet 10a is located at a lower end of the barrel 10, and the discharge outlet 10c is located at an upper end of the barrel 10. The grinding assembly 20 is disposed in the grinding chamber 10b, and the grinding assembly 20 includes a main shaft 21, a rotor 22 sleeved on the main shaft 21, and a plurality of grinding blades 23 disposed on an outer peripheral wall of the rotor 22 in a surrounding manner. As shown in fig. 3, the grinding blade 23 located at the lower part of the rotor 22 is disposed in an inclined manner, and the upper surface of the grinding blade 23 and the horizontal plane form a first inclination angle α which opens forward in the rotation direction of the rotor 22, and the first inclination angle α is an acute angle; grinding vanes 23 located in the lower part of the rotor 22 are used to guide the grinding media and material from the bottom of the grinding chamber 10b to the top of the grinding chamber 10b while rotating.

In this embodiment, the vertical grinder may be provided with a driving mechanism to drive the spindle 21 to rotate at a high speed, and the driving mechanism may be a motor, etc., which is not limited herein.

During the grinding process, the driving mechanism drives the main shaft 21 to rotate, so as to drive the rotor 22 and the grinding blades 23 thereon to rotate, so that the grinding medium in the grinding chamber 10b and the material entering from the feeding port 10a are swirled up from the bottom of the grinding chamber 10b, and the material is ground into particles under the impact of the grinding medium and is discharged through the discharging port 10 c.

Wherein the rotation direction of the rotor 22 may be a counterclockwise direction. Of course, in other application scenarios, the rotor 22 may also rotate in a clockwise direction, but not limited thereto.

In this embodiment, the rotor 22 and the grinding blade 23 may be manufactured by integral molding, or may be assembled by welding, bonding, or clamping, and the like, and is not limited herein.

In this embodiment, the grinding media may be grinding beads, and the diameter of the grinding beads is generally 1mm to 5mm, but not limited thereto.

Referring mainly to fig. 2, in the present embodiment, the cylinder 10 may include an inner cylinder 110 and an outer cylinder 120, the outer cylinder 120 may be sleeved outside the inner cylinder 110, a grinding chamber 10b is formed in the inner cylinder 110, and a cooling chamber 10d may be formed between the inner cylinder 110 and the outer cylinder 120, and the cooling chamber 10d is used for filling a cooling medium.

The cooling medium may be a liquid or a gas, and the like, which is not limited herein.

In this embodiment, the outer cylinder 120 may be provided with a medium inlet through which the cooling medium flows in and a medium outlet through which the cooling medium flows out. In this way, the grinding chamber 10b can be circularly cooled by supplying a cooling medium, thereby reducing the temperature of the grinding assembly 20 to be maintained within a normal operating temperature range, thereby ensuring grinding efficiency and effect.

Referring to fig. 2, in this embodiment, a first end cap 11 located at the lower end of the cylinder 10 and a second end cap 12 located at the upper end of the cylinder 10 may be respectively disposed at two ends of the cylinder 10, a feeding port 10a is opened on the first end cap 11, a main shaft 21 rotatably penetrates the first end cap 11, a discharging port 10c is opened on the second end cap 12, and a gap is formed between the bottom of the rotor 22 and the first end cap 11.

It is worth mentioning that, in the prior art, as the grinding is continuously performed, the grinding medium is accumulated in the gap at the bottom of the grinding cavity 10b, the grinding medium and the bottom of the rotor 22 are abraded, and the material accumulation is too much, so that the rotation speed of the rotor 22 is slowed down, and even the bottom of the rotor 22 and the first end cover 11 of the cylinder 10 are locked and cannot rotate.

However, the utility model discloses a grinding blade 23 slope setting that will be located rotor 22 lower part, the upper surface and the horizontal plane of grinding blade 23 form the first inclination alpha in opening direction the place ahead of the direction of rotation of rotor 22, first inclination alpha is the acute angle, grinding blade 23 that is located rotor 22 lower part can lead to grinding chamber 10b top with the grinding medium and the material of grinding chamber 10b bottom at rotatory in-process, make grinding medium and the material that gets into from the feed inlet can upwards spiral from grinding chamber's bottom, the top in chamber is ground in the flow direction, the problem of grinding medium piling up in grinding chamber 10 b's bottom has been solved.

It will be appreciated that the grinding blades 23 in the lower part of the rotor 22 during rotation form an upwardly swirling flow of grinding media and material entering from the inlet 10a spiralling upwards from the bottom of the grinding chamber 10b, the grinding media and material flowing towards the top of the grinding chamber 10b, during which the material is ground into particles under the impact of the grinding media and flows out through the outlet 10 c.

Referring to fig. 3, in an embodiment, the grinding blade 23 located at the upper portion of the rotor 22 is disposed obliquely, and an upper surface of the grinding blade 23 forms a second inclination angle β with the horizontal plane, where the opening faces away from the front of the rotation direction of the rotor 22, and the second inclination angle β is an acute angle. Wherein the second inclination angle beta is opposite to the opening direction of the first inclination angle alpha. A grinding blade 23 located in the upper part of the rotor 22 for guiding the grinding media in the top of the grinding chamber 10b to the bottom of the grinding chamber 10b while rotating.

In this embodiment, the grinding blades 23 on the upper part of the rotor 22 can form a downward-rotating liquid flow during the rotation process, and the grinding medium can be thrown downwards from the top of the grinding chamber 10b, so that the grinding medium flows downwards in the grinding chamber 10b and then upwards under the action of the grinding blades 23 on the lower part of the rotor 22, and the material entering from the bottom of the grinding chamber 10b is ground, and the process is circulated. Therefore, the sufficiency of grinding materials is further improved, and the grinding efficiency and the grinding effect are improved.

Further, referring to fig. 3, in the present embodiment, a grinding blade 23 located in the middle of the rotor 22 is disposed parallel to the horizontal plane and serves to guide the grinding media and materials in the middle of the grinding chamber 10b to the top of the grinding chamber 10 b. So, can make the material can fully grind at the middle part of grinding the chamber, guarantee the grinding effect to make the material can the upflow to discharge gate department.

Of course, in some other embodiments, for ease of manufacture, the grinding vanes 23 may be positioned parallel to the horizontal in both the middle and upper portions of the rotor 22, also to direct the material and grinding media to the top of the grinding chamber 10 b. In addition, for better flow guiding effect, the grinding blades 23 located at the middle and upper parts of the rotor 22 may be inclined, that is, the upper surfaces of the grinding blades 23 except the lower part of the rotor 22 and the horizontal plane form a second inclination angle β with the opening facing away from the front of the rotation direction of the rotor 22, and the second inclination angle β is an acute angle.

In order to accelerate the circulation of the grinding media to improve the grinding efficiency, referring to fig. 4 and 5, in an embodiment, the inner wall of the cylinder 10 is provided with a plurality of bosses 101 spaced around the inner wall, and the bosses 101 are used for guiding the grinding media and materials at the top of the grinding chamber 10b to the bottom of the grinding chamber 10b when the grinding blades 23 rotate.

In this embodiment, the boss 101 is disposed in an inclined manner, and a lower surface of the boss 101 and a horizontal plane form a third inclination angle γ that opens forward in the rotation direction of the rotor 22, and the third inclination angle γ is an acute angle, as shown in fig. 5.

It should be noted that the cylinder 10 is equivalent to a stator, and the inclined boss 101 provided on the inner wall thereof can cooperate with the grinding blade 23 to accelerate the grinding medium flowing from the top to the bottom of the grinding chamber 10b, thereby greatly improving the grinding efficiency.

Referring to fig. 2, in an embodiment, a sieve plate 13 may be installed in the feed inlet 10a, and the sieve plate 13 is provided with at least one gap, and the width of the gap is suitable to be smaller than the diameter of the grinding medium and larger than the diameter of the material.

In the grinding process, the materials can enter the grinding cavity 10b through the gap, impurities in the materials are filtered out through the gap, and the grinding media of the grinding cavity 10b cannot fall out through the gap, so that the grinding effect is further improved, and the quality of the materials such as slurry is improved.

Referring to fig. 2, in an embodiment, the discharge hole 10c of the second end cap 12 is provided with a mounting seat 14, a discharge screen 15 mounted on the mounting seat 14, and a screen end cap 16 disposed at the other end of the discharge screen 15, and the gap aperture of the discharge screen 15 is suitable to be smaller than the diameter of the grinding medium and larger than the diameter of the ground material particles. So, avoided the material outflow of great granule, further guaranteed the quality of ejection of compact to can separate grinding medium and material, with reuse grinding medium.

Referring to fig. 2 and 3, in the present embodiment, the rotor 22 is provided with a central groove 22a and a through hole 22b communicating with the central groove 22a, and the discharging screen 15 may be partially disposed in the central groove 22a, or the feeding end of the discharging screen 15 may be disposed to communicate with the discharging end of the central groove 22 a. Wherein the central groove 22a communicates with the grinding chamber 10b through a through hole 22 b. Therefore, the whole volume of the vertical grinder can be reduced.

The above is only the optional embodiment of the present invention, and not limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the attached drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims (10)

1. A vertical grinding mill, comprising:

the grinding device comprises a cylinder (10) and a grinding device, wherein a feeding hole (10 a), a grinding cavity (10 b) communicated with the feeding hole (10 a) and a discharging hole (10 c) communicated with the grinding cavity (10 b) are formed in the cylinder (10), the feeding hole (10 a) is located at the lower end of the cylinder (10), and the discharging hole (10 c) is located at the upper end of the cylinder (10);

the grinding assembly (20) is arranged in the grinding cavity (10 b), and the grinding assembly (20) comprises a main shaft (21), a rotor (22) sleeved on the main shaft (21) and a plurality of grinding blades (23) which are arranged on the outer peripheral wall of the rotor (22) in a surrounding mode at intervals;

the grinding blade (23) positioned at the lower part of the rotor (22) is obliquely arranged, the upper surface of the grinding blade (23) and a horizontal plane form a first inclination angle (alpha) with an opening facing to the front of the rotation direction of the rotor (22), and the first inclination angle (alpha) is an acute angle; -grinding blades (23) in the lower part of the rotor (22) for directing the grinding media and material in the bottom of the grinding chamber (10 b) to the top of the grinding chamber (10 b) while rotating.

2. The vertical mill according to claim 1, characterized in that the grinding blades (23) located in the upper part of the rotor (22) are inclined and the upper surfaces of the grinding blades (23) form with the horizontal a second angle of inclination (β) with the opening facing away from the front in the direction of rotation of the rotor (22), said second angle of inclination (β) being an acute angle; grinding vanes (23) located in the upper part of the rotor (22) for guiding the grinding media at the top of the grinding chamber (10 b) to the bottom of the grinding chamber (10 b) while rotating.

3. Vertical mill according to claim 2, characterized in that the grinding blades (23) in the middle of the rotor (22) are arranged parallel to the horizontal plane.

4. Vertical mill according to claim 1, characterized in that the grinding blades (23) in the middle and upper part of the rotor (22) are arranged parallel to the horizontal plane.

5. A vertical mill according to claim 1, characterized in that the inner wall of the barrel (10) is provided with a plurality of spaced circumferentially arranged bosses (101), said bosses (101) being adapted to guide the grinding media and material at the top of the grinding chamber (10 b) to the bottom of the grinding chamber (10 b) when the grinding blades (23) are rotated.

6. A vertical mill according to claim 5, characterized in that the boss (101) is arranged obliquely and the lower surface of the boss (101) forms with the horizontal a third inclination angle (γ) opening towards the front in the direction of rotation of the rotor (22), which third inclination angle (γ) is acute.

7. A vertical mill according to claim 1, characterized in that the rotor (22) is provided with a central groove (22 a) and a plurality of through holes (22 b) communicating the central groove (22 a) with the grinding chamber (10 b); the grinding assembly (20) further comprises a discharge screen (15), the discharge screen (15) is fixed to the discharge hole (10 c) through a mounting seat (14), and a screen end cover (16) is arranged at the end of the discharge screen (15).

8. A vertical mill according to claim 7, characterized in that the gap aperture of the discharge screen (15) is adapted to be smaller than the diameter of the grinding media and larger than the diameter of the ground material particles;

install sieve (13) in feed inlet (10 a), at least one gap has been seted up in sieve (13), the width in gap is suitable for being less than the diameter of grinding medium and is greater than the diameter of material.

9. A vertical mill according to claim 1, characterized in that the mill further comprises a drive mechanism connected to the main shaft (21) for driving the main shaft (21) in rotation.

10. A vertical mill according to claim 1, characterized in that the barrel (10) comprises an inner barrel (110) and an outer barrel (120) sleeved outside the inner barrel (110), the grinding chamber (10 b) is provided in the inner barrel (110), a cooling chamber (10 d) is formed between the inner barrel (110) and the outer barrel (120), and the cooling chamber (10 d) is used for filling a cooling medium;

the outer cylinder (120) is provided with a medium inlet for the inflow of the cooling medium and a medium outlet for the outflow of the cooling medium.

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