CN116174114A - High-speed stirring mill and grinding machine without grinding medium - Google Patents

High-speed stirring mill and grinding machine without grinding medium Download PDF

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Publication number
CN116174114A
CN116174114A CN202211088616.XA CN202211088616A CN116174114A CN 116174114 A CN116174114 A CN 116174114A CN 202211088616 A CN202211088616 A CN 202211088616A CN 116174114 A CN116174114 A CN 116174114A
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CN
China
Prior art keywords
grinding
mill
main shaft
cavity cylinder
stirring rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211088616.XA
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Chinese (zh)
Inventor
向龙华
谢小飞
邓杰升
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen City Sanxing Feirong Machinery Co ltd
Original Assignee
Shenzhen City Sanxing Feirong Machinery Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen City Sanxing Feirong Machinery Co ltd filed Critical Shenzhen City Sanxing Feirong Machinery Co ltd
Priority to CN202211088616.XA priority Critical patent/CN116174114A/en
Publication of CN116174114A publication Critical patent/CN116174114A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/0012—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain)
    • B02C19/0018—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain) using a rotor accelerating the materials centrifugally against a circumferential breaking surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention relates to a high-speed stirring mill and a grinding machine without grinding media. Comprising the following steps: the grinding cavity cylinder is provided with a hollow cavity, and the upper part of the grinding cavity cylinder 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 in the main shaft; the stirring rotor is connected to one end of the main shaft, which is positioned in the grinding cavity cylinder, 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 of the main shaft, which is positioned in the grinding cavity cylinder, is communicated with the discharging 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 correspondingly arranged with the first vortex grooves; the inner stator is connected to the bottom of the grinding cavity cylinder body and is arranged inside the stirring rotor. The implementation of the invention has the following beneficial effects: the material can be efficiently, ultra-finely and uniformly ground without grinding media, so that the grinding cost is saved, and meanwhile, 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 medium
Technical Field
The invention relates to the field of stirring and grinding equipment, in particular to a high-speed stirring mill and a grinding machine without grinding media.
Background
A media stirring mill (including a sand mill) is a machine that breaks up powder particles between two grinding media (typically balls, beads) by stirring the grinding media at a high speed so that the grinding media collide, squeeze, shear each other. The grinding machine can be used for grinding efficiently, ultra-finely and uniformly, and has been widely used. However, this stirring mill must use grinding media (abbreviated as grinding media), such as zirconia beads, alumina beads, silicon nitride beads, etc., which are expensive, have a large loss, and increase the grinding cost. Meanwhile, the grinding medium is worn in the grinding process, and the particles of the worn part are dispersed in the grinding slurry, so that the product is easy to pollute.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art by providing a high-speed stirring mill and a grinding machine without grinding media.
The technical scheme adopted for solving the technical problems is as follows: there is provided a high-speed stirring mill without grinding media, comprising: the grinding cavity cylinder is provided with a hollow cavity, and the upper part of the grinding cavity cylinder 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 formed in the main shaft;
the stirring rotor is connected to one end of the main shaft, which is positioned in the grinding cavity cylinder, 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 of the main shaft, which is positioned in the grinding cavity cylinder, and is communicated with the hollow discharging channel, and 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 correspondingly arranged with the first vortex grooves;
the inner stator is connected to the bottom of the grinding cavity cylinder body, and is arranged inside the stirring rotor.
Further, in the high-speed stirring mill without grinding media of the invention, the side wall of the inner stator is provided with a second guide groove.
Further, in the high-speed stirring mill without grinding media according to the invention, the first vortex groove is a U-shaped chute.
Further, in the high-speed stirring mill without grinding media according to the invention, the second vortex groove is a U-shaped chute.
Further, in the high-speed stirring mill without grinding media, the bottom of the separation turbine is provided with a plurality of turbine holes.
Further, in the high-speed stirring mill without grinding media according to the present invention, further comprising: and the shaft seal is arranged between the main shaft and the grinding cavity cylinder body.
Further, in the high-speed stirring mill without grinding media according to the present invention, the shaft seal is a mechanical shaft seal.
The present invention also provides a mill comprising any of the high speed stirred mills without grinding media described above.
The high-speed stirring mill without grinding medium has the following beneficial effects: the material can be efficiently, ultra-finely and uniformly ground without grinding media, so that the grinding cost is saved, and meanwhile, the pollution of particles generated by the abrasion of the grinding media to products is avoided.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic illustration of the structure of a high speed agitator mill without grinding media according to some embodiments of the invention;
FIG. 2 is a schematic view of the stirring rotor of the high-speed stirring mill of FIG. 1 shown in a first view without grinding media;
FIG. 3 is a schematic view of a second perspective of the stirring rotor of the high-speed stirring mill of FIG. 1 without grinding media;
FIG. 4 is a schematic view of the separation turbine of the high speed agitator mill of FIG. 1 without grinding media from a first perspective;
FIG. 5 is a schematic view of a second perspective of a separation turbine of the high-speed agitator mill of FIG. 1 without grinding media;
fig. 6 is a schematic view of the inner stator of the high-speed stirring mill of fig. 1 without grinding media.
The reference numerals are as follows:
a main shaft 100, a discharge channel 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;
separating turbine 600, second scroll 610, turbine bore 620;
an inner stator 700, a second guide groove 710;
grinding chamber cylinder 800, hollow chamber 810, feed port 820, cooling water port 830.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to solve the problems of high grinding cost and product pollution caused by grinding media and abrasion particles of the grinding media, the invention provides a high-speed stirring mill without the grinding media.
FIG. 1 illustrates a high speed stirred mill without grinding media in some embodiments of the invention, comprising: the grinding chamber cylinder 800, the main shaft 100, the stirring rotor 500, the separation turbine 600 and the inner stator 700.
Specifically, referring to fig. 1, the grinding chamber cylinder 800 is provided with a hollow chamber 810, and a feed port 820 is provided at an upper portion of the grinding chamber cylinder 800 to communicate with the hollow chamber 810. Slurry to be ground enters the hollow cavity 810 through the feed port 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 discharging channel 110 is arranged in the main shaft 100. The spindle 100 is rotated at a high speed to power the grinding of the slurry, while the discharge passage 110 is used to collect the fine particles after grinding.
Further, the stirring 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 stirring rotor 500 has a hollow cylindrical structure, one end of which is opened, and the other end of which is provided with a connection port to be connected to the main shaft 100. In some embodiments, the connection port is provided with a mounting hole, and the mounting hole is cooperatively connected with the main shaft 100, so that 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 guiding groove 520, and a gap is reserved 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 stirring rotor 500 near the main shaft 100, including but not limited to a U-shaped groove, a chute, an arc-shaped groove, a straight groove, etc., for communicating the inside and the outside of the stirring rotor 500 so that the large particle material can pass therethrough. The first guide groove 520 rotates downward and uniformly surrounds the side wall of the stirring rotor 500, has the function of directional driving of the slurry, and can increase the contact area with the slurry, so that the slurry can better move along with the stirring rotor 500 at a high speed. The stirring rotor 500 is spaced from the inner side wall of the grinding chamber cylinder 800, so that the stirring rotor 500 can rotate at a high speed. The outer sidewall of the agitator rotor 500 and the inner sidewall of the grinding chamber cylinder 800 form an outer grinding zone 530.
Further, referring to fig. 6, an inner stator 700 is connected to the bottom of the grinding chamber cylinder 800, and the inner stator 700 is provided inside the stirring rotor 500. The inner stator 700 is fixedly connected with the grinding chamber cylinder 800, and an inner grinding area 540 is formed between the outer wall of the inner stator 700 and the inner side of the stirring rotor 500.
Further, referring to fig. 4 and 5, a separation turbine 600 is connected to one end of the main shaft 100 located in the grinding chamber cylinder 800, the separation turbine 600 communicates with the hollow 110, and the separation turbine 600 is provided in the stirring rotor 500. The separation turbine 600 is provided with a plurality of second vortex grooves 610, and the positions of the plurality of second vortex grooves 610 are arranged corresponding to the plurality of first vortex grooves 510. Preferably, the second vortex grooves 610 include, but are not limited to, U-shaped grooves, angled grooves, arcuate grooves, straight grooves, and the like. The separation turbine 600 is fixedly connected to the main shaft 100, and can rotate at a high speed by the main shaft 100 to generate centrifugal force. The separation turbine 600 is disposed in the stirring rotor 500, the finest particles in the separation turbine 600 are discharged through the discharge channel 110, and the larger material particles are thrown out from the second vortex groove 610 under the 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 larger material particles in the separation turbine 600 are thrown from the second vortex 610, possibly into the inner grinding zone 540, possibly passing through the inner grinding zone 540 before entering the outer grinding zone 530 through the first vortex 510. It will be appreciated that the second vortex 610 is positioned in correspondence with the first vortex 510 to facilitate passage of large particulate material into the outer grinding zone 530.
In the present embodiment, slurry enters the hollow cavity 810 of the milling chamber cylinder 800 from the feed port 820 and settles down into the outer milling zone 530 of the agitator rotor 500. The stirring rotor 500 drives the slurry to move through high-speed rotation, so that the material particles in the slurry obtain enough kinetic energy. Further, the space between the stirring rotor 500 and the inner stator 700 and the inner wall of the grinding chamber cylinder 800 is very small, so that the material particles can be fully mutually collided, extruded and sheared under the condition of ensuring that the stirring rotor 500 rotates normally, and the effect of crushing or partially stripping the material particles is achieved. The materials are stirred and ground in the outer grinding zone 530, the materials sink under the action of the first guide groove 520, enter the inner grinding zone 540 from the bottom of the stirring rotor 500, and enter the separation turbine 600 axially upwards under the stirring action of the inner stator 700. The separation turbine 600 rotates to generate strong centrifugal force, and the fine particle materials can enter 110 to be discharged under the action of external force and overcome the centrifugal force of the separation turbine 600 due to small inertia; the large particle material is thrown out under the centrifugal force of the separation turbine 600, enters the inner grinding zone 540 through the second vortex groove 610, or continuously passes through the first vortex groove 510 to enter the outer grinding zone 530 and enters the next grinding cycle, so that the effects of continuous circulation and graded discharge of the ground slurry between the inner grinding zone 530 and the outer grinding zone 530 are realized.
Further, in some embodiments, in the high-speed stirring mill without grinding media of the present invention, the second guide groove 710 is provided on the sidewall of the inner stator 700. Specifically, referring to fig. 6, the second guide groove 710 rotates downward and uniformly surrounds the sidewall of the stirring rotor 500, thereby having a directional driving function for the slurry, and increasing the contact area with the slurry, so that the slurry can better follow the high-speed movement of the stirring rotor 500.
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 portion of the grinding chamber cylinder 800, and a feed through hole is provided corresponding to the feed port 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 will be appreciated that the lower cylinder head 400 is provided with a water outlet corresponding to the cooling water gap 830. The inner wall of the inner stator 700 forms a cooling water channel with the bottom of the grinding chamber cylinder 800 and the cooling water gap 830.
Further, in the high-speed agitating 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 axial force, material particles enter the separation turbine 600 from the bottom of the milling chamber cylinder 800 from the turbine bore 620.
Further, in the high-speed agitation mill without grinding media of the present invention, further comprising: a shaft seal 200 disposed between the main shaft 100 and the grinding chamber cylinder 800. Shaft seal 200 includes, but is not limited to, mechanical shaft seal 200.
The invention also provides a grinder, which comprises the high-speed stirring grinder without the grinding medium disclosed by the embodiment of the invention.
The high-speed stirring mill without grinding medium has the following beneficial effects: the material can be efficiently, ultra-finely and uniformly ground without grinding media, so that the grinding cost is saved, and meanwhile, the pollution of abrasion particles of the grinding media to products is avoided.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same according to the content of the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made with the scope of the claims should be covered by the claims.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims (8)

1. A high speed stirring mill without grinding media, comprising:
the grinding cavity cylinder is provided with a hollow cavity, and the upper part of the grinding cavity cylinder 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 formed in the main shaft;
the stirring rotor is connected to one end of the main shaft, which is positioned in the grinding cavity cylinder, 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 of the main shaft, which is positioned in the grinding cavity cylinder, and is communicated with the hollow discharging channel, and 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 correspondingly arranged with the first vortex grooves;
the inner stator is connected to the bottom of the grinding cavity cylinder body, and is arranged inside the stirring rotor.
2. The high-speed stirring mill without grinding media of claim 1 wherein a second guide groove is provided on the inner stator sidewall.
3. The grinding media free high speed agitating mill of claim 1 wherein said first vortex is a U-shaped chute.
4. The grinding media free high speed agitating mill of claim 1 wherein said second vortex is a U-shaped chute.
5. The high-speed stirring mill without grinding media of claim 1 wherein the bottom of the separation turbine is provided with a plurality of turbine holes.
6. The grinding media-free high speed agitator mill of claim 1, further comprising: and the shaft seal is arranged between the main shaft and the grinding cavity cylinder body.
7. The grinding media free high speed stirring mill of claim 6 wherein the shaft seal is a mechanical shaft seal.
8. A grinding mill characterized by comprising a high-speed stirred mill without grinding media according to claims 1-7.
CN202211088616.XA 2022-09-07 2022-09-07 High-speed stirring mill and grinding machine without grinding medium Pending CN116174114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211088616.XA CN116174114A (en) 2022-09-07 2022-09-07 High-speed stirring mill and grinding machine without grinding medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211088616.XA CN116174114A (en) 2022-09-07 2022-09-07 High-speed stirring mill and grinding machine without grinding medium

Publications (1)

Publication Number Publication Date
CN116174114A true CN116174114A (en) 2023-05-30

Family

ID=86447693

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211088616.XA Pending CN116174114A (en) 2022-09-07 2022-09-07 High-speed stirring mill and grinding machine without grinding medium

Country Status (1)

Country Link
CN (1) CN116174114A (en)

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