CN218250681U - High-speed stirring mill and grinding machine without grinding media - Google Patents

Abstract

The utility model relates to a high-speed stirring of no grinding medium grinds and grinds machine. The method comprises the following steps: the grinding cavity barrel is provided with a hollow cavity, and the upper part of the grinding cavity barrel is provided with a feed inlet communicated with the hollow cavity; one end of the main shaft penetrates through the grinding cavity cylinder body to enter the hollow cavity, and a hollow discharging channel is arranged inside the main shaft; the stirring rotor is connected to one end of the main shaft, which is positioned in the grinding cavity cylinder body, and is provided with a plurality of first vortex grooves, the side wall of the stirring rotor is provided with a first guide groove, and a gap is reserved between the stirring rotor and the inner side wall of the grinding cavity cylinder body; the separation turbine is connected to one end of the main shaft, which is positioned in the grinding cavity cylinder, is communicated with the discharge channel, is arranged in the stirring rotor, and is provided with a plurality of second vortex grooves, and the positions of the second vortex grooves are arranged corresponding to the first vortex grooves; the inner stator is connected to the bottom of the grinding cavity barrel and arranged inside the stirring rotor. Implement the utility model discloses following beneficial effect has: the material can be efficiently, ultrafine and uniformly ground without grinding media, so that the grinding cost is saved, and the pollution of particles generated by the abrasion of the grinding media to products is avoided.

Description

High-speed stirring mill and grinding machine without grinding media

Technical Field

The utility model relates to a stirring grinding equipment field, more specifically say, relate to a high-speed stirring of no grinding medium grinds and grinds machine.

Background

Media-agitation mills (including sand mills) are machines that break up powder particles between two grinding media (typically round balls or beads) by agitating the grinding media at high speed so that the grinding media collide with each other, squeeze, and shear. Because the grinding machine can grind in a high-efficiency, superfine and uniform way, the grinding machine is widely applied. However, the stirring mill must use grinding media (grinding media for short), such as zirconia beads, alumina beads, silicon nitride beads, etc., and is expensive, and the loss is large, which increases the grinding cost. Meanwhile, the grinding media are worn away in the grinding process, and particles of the worn part are dispersed in the grinding slurry, so that the product is easily polluted.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, provide a high-speed stirring of no grinding medium grinds and grinds machine.

The utility model provides a technical scheme that its technical problem adopted is: a high-speed stirring mill without grinding media is provided, which comprises: the grinding chamber comprises a grinding chamber cylinder body, a grinding chamber cylinder body and a grinding chamber, wherein the grinding chamber cylinder body is provided with a hollow cavity, and the upper part of the grinding chamber cylinder body is provided with a feed inlet communicated with the hollow cavity;

one end of the main shaft penetrates through the grinding cavity barrel to enter the hollow cavity, and a hollow discharging channel is arranged inside the main shaft;

the stirring rotor is connected to one end, located in the grinding cavity barrel, of the main shaft, the stirring rotor is provided with a plurality of first vortex grooves, the side wall of the stirring rotor is provided with a first guide groove, and a gap is reserved between the stirring rotor and the inner side wall of the grinding cavity barrel;

the separation turbine is connected to one end, located in the grinding cavity cylinder, of the main shaft, communicated with the hollow discharge channel, arranged in the stirring rotor, provided with a plurality of second vortex grooves, and the second vortex grooves are arranged corresponding to the first vortex grooves;

the inner stator is connected to the bottom of the grinding cavity cylinder and is arranged inside the stirring rotor.

Furthermore, in the high-speed stirring mill without grinding media of the present invention, the inner stator side wall is provided with a second guide groove.

Utility model discloses further, the high-speed stirring of no grinding medium grind in the utility model, the first whirlpool groove of telling is the U-shaped chute.

Furthermore, in the high-speed stirring mill without grinding media of the present invention, the second vortex groove is a U-shaped chute.

Further, in the high-speed stirring mill without grinding media of the present invention, the bottom of the separation turbine is provided with a plurality of turbine holes.

Further, in the high-speed stirring mill without grinding media of the present invention, the high-speed stirring mill further comprises: and the shaft seal is arranged between the main shaft and the grinding cavity barrel.

Furthermore, in the high-speed stirring mill without grinding media of the present invention, the shaft seal is a mechanical shaft seal.

The utility model also provides a grinding machine, including as above any one does not have the high-speed stirring of grinding media and grinds.

Implement no grinding medium's high-speed stirring mill, have following beneficial effect: the material can be efficiently, ultrafine and uniformly ground without grinding media, so that the grinding cost is saved, and the pollution of particles generated by the abrasion of the grinding media to products is avoided.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic diagram of a high speed agitator mill without grinding media according to some embodiments of the present invention;

FIG. 2 is a schematic view of a first perspective of a mixing rotor of the high speed mixing mill shown in FIG. 1 without grinding media;

FIG. 3 is a schematic diagram of a second perspective view of a mixing rotor of the high speed mixing mill shown in FIG. 1 without grinding media;

FIG. 4 is a schematic diagram of a first perspective view of a separation turbine of the high speed agitator mill shown in FIG. 1 without grinding media;

FIG. 5 is a schematic diagram of a second perspective view of a separation turbine of the high speed agitator mill shown in FIG. 1 without grinding media;

fig. 6 is a schematic structural view of an inner stator of the high-speed stirring mill without grinding media shown in fig. 1.

The reference numerals are explained below:

a main shaft 100, a discharge passage 110;

a shaft seal 200;

an upper cylinder head 300;

a lower cylinder head 400;

a stirring rotor 500, a first vortex groove 510, a first guide groove 520, an outer grinding zone 530, an inner grinding zone 540;

a separation turbine 600, a second scroll groove 610, a turbine hole 620;

an inner stator 700, a second guide groove 710;

the grinding chamber cylinder 800, the hollow cavity 810, the feed inlet 820 and the cooling water inlet 830.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 all belong to the protection scope of the present invention.

In order to solve the problem that grinding medium causes grinding with high costs, grinding medium wearing and tearing granule pollution product, the utility model provides a high-speed stirring of no grinding medium grinds, and this utility model need not high efficiency, superfine, the even grinding that grinding medium can realize the material, has saved the grinding cost, avoids the granule that grinding medium wearing and tearing produced to the pollution of product simultaneously.

Fig. 1 illustrates a high speed stirred mill without grinding media in some embodiments of the invention, comprising: a grinding chamber cylinder 800, a main shaft 100, a stirring rotor 500, a separation turbine 600 and an inner stator 700.

Specifically, referring to fig. 1, the grinding chamber cylinder 800 is provided with a hollow cavity 810, and a feed inlet 820 is formed at the upper part of the grinding chamber cylinder 800 and is communicated with the hollow cavity 810. Slurry to be ground enters the hollow cavity 810 through the feed inlet 820 for grinding.

Further, one end of the main shaft 100 passes through the grinding chamber cylinder 800 and enters the hollow cavity 810, and a hollow discharge passage 110 is arranged inside the main shaft 100. The main shaft 100 provides power for the grinding of the slurry by rotating at a high speed, while the discharge passage 110 serves to collect the ground fine particles.

Further, the mixing rotor 500 is connected to one end of the main shaft 100 located in the grinding chamber cylinder 800, and referring to fig. 2 and 3, the mixing rotor 500 is a hollow cylindrical structure, one end of which is open, and the other end of which is provided with a connection port to connect with the main shaft 100. In some embodiments, the connection port is provided with a mounting hole, the mounting hole is cooperatively connected with the main shaft 100, and the stirring rotor 500 is fixedly mounted on the main shaft and can rotate synchronously with the main shaft 100.

Further, the stirring rotor 500 is provided with a plurality of first vortex grooves 510, the side wall of the stirring rotor 500 is provided with a first guide groove 520, and a gap is left between the stirring rotor 500 and the inner side wall of the grinding chamber cylinder 800. The first vortex groove 510 is disposed at one end of the side wall of the mixing rotor 500 close to the main shaft 100, and includes, but is not limited to, a U-shaped groove, a chute, an arc-shaped groove, a straight groove, etc. for communicating the inner side and the outer side of the mixing rotor 500, so that large granular materials can pass through. First guide way 520 is rotatory, evenly surrounds on stirring rotor 500's lateral wall downwards, has the effect that directional thick liquids were driven, can increase the area of contact with thick liquids simultaneously, and the high-speed motion of follow stirring rotor 500 that makes thick liquids can be better. The stirring rotor 500 is spaced apart from the inner sidewall of the milling chamber cylinder 800, so that the stirring rotor 500 can rotate at a high speed. The outer side wall of the mixing rotor 500 and the inner side wall of the grinding chamber cylinder 800 form an outer grinding zone 530.

Further, referring to fig. 6, an inner stator 700 is attached to the bottom of the milling chamber cylinder 800, and the inner stator 700 is disposed inside the stirring rotor 500. The inner stator 700 is fixedly connected with the grinding chamber cylinder 800, and an inner grinding region 540 is formed on the outer wall of the inner stator 700 and the inner side of the stirring rotor 500.

Further, referring to fig. 4 and 5, the separation turbine 600 is connected to one end of the main shaft 100 located in the grinding chamber cylinder 800, the separation turbine 600 is communicated with the hollow 110, and the separation turbine 600 is disposed in the stirring rotor 500. The separation turbine 600 is provided with a plurality of second scroll grooves 610, and the positions of the plurality of second scroll grooves 610 are arranged corresponding to the plurality of first scroll grooves 510. Preferably, the second vortex groove 610 includes, but is not limited to, a U-shaped groove, an inclined groove, an arc-shaped groove, a straight groove, and the like. The separation turbine 600 is fixedly connected to the main shaft 100, and can rotate at a high speed under the action of the main shaft 100 to generate centrifugal force. The separation turbine 600 is arranged in the stirring rotor 500, the finest particles in the separation turbine 600 are discharged through the discharge channel 110, the larger material particles are thrown out from the second vortex groove 610 under the action of centrifugal force, enter the outer grinding zone 530 through the first vortex groove 510, and enter the next grinding cycle. It will be appreciated that the larger particles of material in the separation turbine 600 are thrown from the second volute 610 and may enter the inner grinding zone 540, or may pass through the inner grinding zone 540 and then enter the outer grinding zone 530 through the first volute 510. It will be appreciated that the second vortex groove 610 is positioned to correspond to the first vortex groove 510 to facilitate the passage of large particulate material into the outer grinding zone 530.

In the embodiment of the present invention, the slurry enters the hollow cavity 810 of the milling chamber cylinder 800 from the feeding port 820, and then falls downward to enter the outer milling region 530 of the mixing rotor 500. The stirring rotor 500 drives the slurry to move by rotating at a high speed, so that the material particles in the slurry obtain sufficient kinetic energy. Further, the distance between the stirring rotor 500 and the inner stator 700 and the inner wall of the grinding cavity cylinder 800 is very small, so that under the condition that the stirring rotor 500 normally rotates, material particles can be fully collided, extruded and sheared, and the effect of crushing or partially stripping the material particles is achieved. The material is stirred and ground in the outer grinding region 530, sinks under the action of the first guide groove 520, enters the inner grinding region 540 from the bottom of the stirring rotor 500, and axially and upwardly enters the separation turbine 600 under the stirring action of the inner stator 700. The separation turbine 600 rotates to generate a strong centrifugal force, and fine-particle materials can overcome the centrifugal force of the separation turbine 600 under the action of external force to enter 110 and be discharged due to small inertia; large particle materials are thrown out under the action of centrifugal force of the separation turbine 600, enter the inner grinding area 540 through the second vortex groove 610, or continuously pass through the first vortex groove 510 to enter the outer grinding area 530, and enter the next grinding circulation, so that the effects of continuous circulation and classified discharge of ground slurry between the inner grinding area 530 and the outer grinding area 530 are realized.

Further, in some embodiments, the inner stator 700 is provided with a second guiding groove 710 on the sidewall thereof in the high-speed stirring mill without grinding media. Specifically, referring to fig. 6, the second guide grooves 710 rotate downward and uniformly surround the side wall of the stirring rotor 500, so as to have a function of directionally driving the slurry, and at the same time, the contact area between the second guide grooves and the slurry can be increased, so that the slurry can better follow the stirring rotor 500 to move at a high speed.

Further, in some embodiments, the upper end of the grinding chamber cylinder 800 is provided with an upper cylinder cover 300, and the lower end of the grinding chamber cylinder 800 is provided with a lower cylinder cover 400. The upper cylinder cover 300 seals the upper part of the grinding cavity cylinder body 800, and a feeding through hole is arranged corresponding to the feeding hole 820. The lower cylinder cover 400 seals the bottom of the grinding chamber cylinder 800.

Further, in some embodiments, a cooling water port 830 is provided at the bottom center of the grinding chamber cylinder 800. It is understood that the lower cylinder cover 400 is provided with a water outlet corresponding to the cooling water port 830. The inner wall of the inner stator 700 forms a cooling water channel with the bottom of the grinding cavity cylinder 800 and the cooling water port 830.

Further, in the high-speed stirring mill without grinding media of the present invention, the bottom of the separation turbine 600 is provided with a plurality of turbine holes 620. Under the action of axial force, material particles enter the separation turbine 600 from the bottom of the grinding chamber cylinder 800 through the turbine bore 620.

Further, the utility model discloses a high-speed stirring of no grinding medium is ground, still includes: and a shaft seal 200 disposed between the spindle 100 and the grinding chamber cylinder 800. The shaft seal 200 includes, but is not limited to, a mechanical shaft seal 200.

The utility model also provides a grind the machine, include the embodiment of the utility model discloses a no grinding medium's high-speed stirring grinds.

Implement no grinding medium's high-speed stirring mill, have following beneficial effect: the material can be efficiently, ultrafine and uniformly ground without grinding media, so that the grinding cost is saved, and the pollution of grinding media abrasion particles to products is avoided.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and implement the present invention accordingly, which can not limit the protection scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

It will be understood that modifications and variations are possible to those skilled in the art in light of the above teachings and that all such modifications and variations are considered to be within the purview of the invention as set forth in the appended claims.

Claims (8)

1. A high speed agitator mill without grinding media, comprising:

the grinding chamber comprises a grinding chamber cylinder body, a grinding chamber cylinder body and a grinding chamber, wherein the grinding chamber cylinder body is provided with a hollow cavity, and the upper part of the grinding chamber cylinder body is provided with a feed inlet communicated with the hollow cavity;

one end of the main shaft penetrates through the grinding cavity cylinder body to enter the hollow cavity, and a hollow discharging channel is arranged inside the main shaft;

the stirring rotor is connected to one end, located in the grinding cavity cylinder, of the main shaft, and is provided with a plurality of first vortex grooves, the side wall of the stirring rotor is provided with a first guide groove, and a gap is reserved between the stirring rotor and the inner side wall of the grinding cavity cylinder;

the separation turbine is connected to one end, located in the grinding cavity cylinder, of the main shaft, communicated with the hollow discharge channel, arranged in the stirring rotor, and provided with a plurality of second vortex grooves, and the second vortex grooves are arranged corresponding to the first vortex grooves;

the inner stator is connected to the bottom of the grinding cavity cylinder and is arranged inside the stirring rotor.

2. The high-speed stirring mill without grinding media as claimed in claim 1, wherein the inner stator is provided with a second guide groove on a side wall thereof.

3. The high speed agitator mill without grinding media of claim 1, wherein the first vortex groove is a U-shaped chute.

4. The high speed agitator mill without grinding media of claim 1, wherein the second vortex groove is a U-shaped chute.

5. The high speed agitator mill without grinding media of claim 1, wherein the separation turbine is provided with a plurality of turbine holes at the bottom.

6. The high speed agitator mill without grinding media of claim 1, further comprising: and the shaft seal is arranged between the main shaft and the grinding cavity barrel.

7. The high-speed agitator mill without grinding media of claim 6, wherein the shaft seal is a mechanical shaft seal.

8. A grinding mill comprising a high speed stirred mill without grinding media according to claims 1-7.

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