CN215312817U

CN215312817U - Strong grinding vertical sand mill

Info

Publication number: CN215312817U
Application number: CN202120513949.7U
Authority: CN
Inventors: 陈吕
Original assignee: Dongguan Yifu Machinery Technology Co ltd
Current assignee: Dongguan Yifu Machinery Technology Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-12-28
Anticipated expiration: 2031-03-11

Abstract

The utility model relates to the technical field of sand mills, in particular to a strong grinding vertical sand mill which comprises a bearing seat, wherein a hollow main shaft penetrates through the bearing seat, a grinding cylinder is arranged below the hollow main shaft, the hollow main shaft comprises a second-stage separation device, the second-stage separation device comprises a lower main shaft, the second-stage separation device is sleeved with a first-stage separation device, the first-stage separation device comprises a dispersing cylinder body and a cavity, a first-stage material channel is formed in the side wall of the dispersing cylinder body, and the dispersing cylinder body is provided with a plurality of rod nails. According to the utility model, spherical grinding media such as zirconia beads are distributed between the primary separation device and the grinding cylinder, the primary separation device is driven to rotate by the rotation of the hollow main shaft, the spherical grinding media with larger mass and large materials are thrown away from the primary separation device by using centrifugal force, and further strong grinding is carried out through the rod nails, so that the use of a screen is abandoned, and the production efficiency is greatly improved.

Description

Strong grinding vertical sand mill

Technical Field

The utility model relates to the technical field of sand mills, in particular to a strong grinding vertical sand mill.

Background

The sand mill is also called bead mill, and is mainly used for wet grinding of chemical liquid products, and can be classified into a horizontal sand mill, a basket type sand mill, a vertical sand mill and the like according to the use performance. The sand mill mainly comprises a mill body, a milling barrel, a sand milling disc (deflector rod), a grinding medium, a motor and a feeding pump, wherein the feeding speed is controlled by the feeding pump. The grinding media of the apparatus are generally classified into zirconia beads, glass beads, zirconium silicate beads, and the like.

In order to avoid discharging spherical grinding media such as zirconia beads together with the object to be ground, it is generally necessary to install a screen in the apparatus, but the screen is easily clogged, and therefore, it is necessary to clean the screen from time to time, which is extremely constant in production.

Disclosure of Invention

In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a vertical sand mill without a screen.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a vertical sand mill of strong grinding, includes the bearing frame, wear to be equipped with a hollow main shaft in the bearing frame, the below of hollow main shaft is provided with the grinding vessel, hollow main shaft is including stretching into the second grade separator in the grinding vessel, second grade separator includes the lower main shaft integrative with hollow main shaft, the one-level separator has been cup jointed to the second grade separator, the one-level separator includes the cavity between dispersion barrel and the second grade separator, the one-level material way has been seted up to the lateral wall of dispersion barrel, the feed inlet has been seted up to the bottom of grinding vessel, the dispersion barrel is equipped with the deconcentrator, the deconcentrator includes a plurality of stick nails, the protruding lateral wall of locating the dispersion barrel of stick nail.

Wherein, the side wall of the lower main shaft is provided with a turbine-shaped secondary material channel.

Wherein, the upper end of dispersion barrel is the opening setting.

Further, the deconcentrator includes the protruding structure of multiseriate along dispersion barrel circumference equipartition, protruding structure includes along dispersion barrel axial equipartition the stick nail.

More closely, the first-stage material channel is in a turbine shape.

Further, the first-level material channel is arranged at the upper end of the dispersing cylinder body, and the rod nails are arranged below the first-level material channel.

More closely, the lower extreme of dispersion barrel is equipped with spiral belting downwards protrudingly.

The hollow main shaft comprises a middle-section main shaft extending into the bearing seat, the outer diameter of the middle part of the middle-section main shaft is larger than the outer diameters of the upper end and the lower end of the middle-section main shaft, and bearings used for clamping the middle-section main shaft are arranged at the upper end and the lower end of the bearing seat.

And a main machine seal is further arranged between the bearing seat and the grinding cylinder, the main machine seal is connected with the hollow main shaft, and the main machine seal is connected with the upper end of the grinding cylinder.

The hollow spindle stretches out the upper end cover of bearing frame and is equipped with rotary joint, rotary joint's upper end is provided with the ejection of compact chamber, the lateral wall in ejection of compact chamber is provided with the discharge gate, discharge gate and hollow spindle intercommunication.

And a belt pulley is arranged at the upper end of the hollow main shaft extending out of the bearing seat.

The utility model has the beneficial effects that: according to the utility model, spherical grinding media such as zirconia beads are distributed between the primary separation device and the grinding cylinder, the primary separation device is driven to rotate by the rotation of the hollow main shaft, the spherical grinding media with larger mass and large materials are thrown away from the primary separation device by using centrifugal force, and the spherical grinding media are prevented from entering the cavity from the primary material channel of the primary separation device while being further and strongly ground by the rod nails, so that the use of a screen is abandoned, and the production efficiency is greatly improved.

Drawings

FIG. 1 is a schematic view of the apparatus of example 1;

FIG. 2 is a schematic view of a primary separating apparatus and a secondary separating apparatus in example 1;

FIG. 3 is a plan view of the primary and secondary separation apparatuses of example 1;

the reference signs are: 1-bearing seat 1, 11-bearing, 2-hollow main shaft, 21-middle section main shaft, 3-grinding cylinder, 31-feed inlet, 4-first grade separation device, 41-dispersing cylinder, 411-first grade material channel, 412-rod nail, 413-spiral material carrying device, 42-cavity, 5-second grade separation device, 51-lower main shaft, 52-second grade material channel, 6-main machine seal, 7-belt pulley, 8-rotary joint, 81-discharge cavity and 82-discharge hole.

Detailed Description

For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-3, which are not intended to limit the present invention.

Example 1

As shown in fig. 1, a vertical sand mill of forced grinding, including bearing frame 1, wear to be equipped with a hollow main shaft 2 in the bearing frame 1, the below of hollow main shaft 2 is provided with grinding vessel 3, hollow main shaft 2 is including stretching into second grade separator 5 in the grinding vessel 3, second grade separator 5 includes the lower main shaft 51 integrative with hollow main shaft 2, second grade separator 5 has cup jointed first grade separator 4, first grade separator 4 includes dispersion barrel 41 and the cavity 42 between dispersion barrel 41 and the second grade separator 5, first grade material way 411 has been seted up to the lateral wall of dispersion barrel 41, feed inlet 31 has been seted up to the bottom of grinding vessel 3.

In the utility model, spherical grinding media such as zirconia beads are distributed between the primary separation device 4 and the grinding cylinder 3, the primary separation device 4 is driven to rotate by the rotation of the hollow main shaft 2, and the spherical grinding media are prevented from entering the cavity 42 from the primary material channel 411 of the primary separation device 4 by centrifugal force.

The dispersing cylinder 41 is provided with a disperser, the disperser includes a plurality of rod nails 412, and the rod nails 412 protrude from the outer side wall of the dispersing cylinder 41. The arrangement of the rod pins 412 can break up grinding media and materials, and further improve grinding efficiency.

Further, the disperser comprises a plurality of rows of protruding structures uniformly distributed along the circumferential direction of the dispersing cylinder 41, and the protruding structures comprise the rod nails 412 uniformly distributed along the axial direction of the dispersing cylinder 41. The rod nails 412 are arranged in an evenly distributed mode, the stirring effect of the rod nails 412 is more even, and the grinding efficiency can be further improved.

Further, the first-stage material channel 411 is arranged at the upper end of the dispersion cylinder 41, and the rod nail 412 is arranged below the first-stage material channel 411. The primary material channel 411 is disposed above the rod nails 412, and has the advantages that: the material must pass through the grinding layer upon layer of stick nail 412 and grinding medium from bottom to top and can enter into one-level material way 411, and the material of large granule takes place to subside more easily under the effect of gravity, and the material after subsiding continues to enter into in the stick nail 412 and grinds repeatedly to the material is ground more meticulously, improves and grinds the effect.

Wherein, the first-stage material channel 411 is turbine-shaped and is uniformly distributed along the circumferential direction of the dispersion cylinder 41.

Wherein, the side wall of the lower main shaft 51 is provided with a turbine-shaped secondary material channel 52.

The turbine-shaped secondary material channel 52 arranged by the secondary separation device 5 can also effectively prevent the ball grinding medium from entering the hollow main shaft 2, thereby improving the filtering performance of the device on the grinding medium and greatly improving the production efficiency.

Wherein, the upper end of dispersion barrel 41 is the opening setting, because the gravity influence of zirconium pearl self and the hindrance effect of stick nail 412, the zirconium pearl is difficult to basically get into from the upper end of dispersion barrel, and even if get into a small amount, also can carry out the efficient separation through second grade separator 5, and the material of stirring through stick nail 412 also has certain fineness, gets into the treatment effeciency that can improve the material from second grade separator 5.

Further, a spiral belt material device 413 is protruded downwards at the lower end of the dispersion cylinder 41. Spiral area material device 413 can reduce the passageway volume of material, and according to the venturi effect, the material velocity of flow that gets into between spiral area material device 413 and the grinding vessel 3 can accelerate, does benefit to it and utilizes inertia to rush into the grinding vessel 3 periphery, and the fluid in the aggravation grinding vessel 3 is swashed, and the material mixes more fully with grinding medium, effectively improves grinding efficiency.

Wherein, hollow main shaft 2 is including stretching into middle section main shaft 21 in bearing frame 1, the middle part external diameter of middle section main shaft 21 is greater than the external diameter at upper and lower both ends, bearing 11 that is used for joint middle section main shaft 21 is all established to the upper end and the lower extreme of bearing frame 1. The position of the hollow main shaft 2 can be fixed in a clamping mode, and meanwhile, the contact area between the hollow main shaft 2 and the bearing seat 1 is reduced, so that the influence of friction on the rotation of the hollow main shaft 2 is reduced, and the reduction of the power requirement on the rotation of the hollow main shaft 2 is facilitated.

A main machine seal 6 is further arranged between the bearing seat 1 and the grinding cylinder 3, the main machine seal 6 is sleeved with the hollow main shaft 2, and the main machine seal 6 covers an upper end opening of the grinding cylinder 3. The main machine seal 6 can improve the whole tightness of the equipment, in the embodiment, the main machine seal 6 is used for sealing and covering the upper end opening of the grinding cylinder 3, and the leakage of materials or grinding media in the grinding cylinder can be avoided.

Wherein, hollow main shaft 2 stretches out the upper pot head of bearing frame 1 and is equipped with rotary joint 8, rotary joint 8's upper end is provided with ejection of compact chamber 81, the lateral wall in ejection of compact chamber 81 is provided with the discharge gate, discharge gate and hollow main shaft 2 intercommunication. The rotary joint 8 can lead out the materials from the rotary pipeline from a fixed discharge hole, and the materials after grinding are favorably led out.

The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.

Claims

1. The utility model provides a vertical sand mill of strong grinding which characterized in that: comprises a bearing seat (1), a hollow main shaft (2) is arranged in the bearing seat (1) in a penetrating manner, a grinding cylinder (3) is arranged below the hollow main shaft (2), the hollow main shaft (2) comprises a second-stage separation device (5) extending into the grinding cylinder (3), the second-stage separation device (5) comprises a lower main shaft (51) integrated with the hollow main shaft (2), a first-stage separation device (4) is sleeved on the second-stage separation device (5), the first-stage separation device (4) comprises a dispersion cylinder body (41) and a cavity (42) between the dispersion cylinder body (41) and the second-stage separation device (5), a first-stage material channel (411) is arranged on the side wall of the dispersion cylinder body (41), a feed inlet (31) is arranged at the bottom of the grinding cylinder (3), the dispersion cylinder body (41) is provided with a disperser, the disperser comprises a plurality of rod nails (412), the rod nail (412) is convexly arranged on the outer side wall of the dispersing cylinder body (41).

2. The strong grinding vertical sand mill as claimed in claim 1, wherein: the side wall of the lower main shaft (51) is provided with a turbine-shaped secondary material channel (52).

3. The strong grinding vertical sand mill as claimed in claim 1, wherein: the disperser comprises a plurality of rows of protruding structures which are uniformly distributed along the circumferential direction of the dispersing cylinder body (41), and the protruding structures comprise the rod nails (412) which are uniformly distributed along the axial direction of the dispersing cylinder body (41).

4. A strong grinding vertical sand mill according to any one of claims 1 to 3, characterized in that: the first-stage material channel (411) is turbine-shaped.

5. A strong grinding vertical sand mill according to claim 1 or 3, characterized in that: the first-level material channel (411) is arranged at the upper end of the dispersing cylinder body (41), the rod nails (412) are arranged below the first-level material channel (411), and the lower end of the dispersing cylinder body (41) is provided with a spiral material carrying device (413) in a downward protruding mode.

6. The strong grinding vertical sand mill as claimed in claim 1, wherein: hollow main shaft (2) are including stretching into middle section main shaft (21) in bearing frame (1), the middle part external diameter of middle section main shaft (21) is greater than the external diameter at upper and lower both ends, bearing (11) that are used for joint middle section main shaft (21) are all established to the upper end and the lower extreme of bearing frame (1).

7. The strong grinding vertical sand mill as claimed in claim 1, wherein: still be provided with host computer between bearing frame (1) and grinding vessel (3) and seal (6), host computer seals (6) cup joints hollow main shaft (2), host computer seals (6) and is connected with the upper end of grinding vessel (3).

8. The strong grinding vertical sand mill as claimed in claim 1, wherein: hollow main shaft (2) stretch out the upper end cover of bearing frame (1) and are equipped with rotary joint (8), the upper end of rotary joint (8) is provided with ejection of compact chamber (81), the lateral wall in ejection of compact chamber (81) is provided with the discharge gate, discharge gate and hollow main shaft (2) intercommunication.

9. The strong grinding vertical sand mill as claimed in claim 1, wherein: and a belt pulley (7) is arranged at the upper end of the hollow main shaft (2) extending out of the bearing seat (1).