CN217796464U

CN217796464U - Vertical nano sand mill

Info

Publication number: CN217796464U
Application number: CN202221639114.7U
Authority: CN
Inventors: 杜保东; 李统柱; 金旭东
Original assignee: SHENZHEN SHANGSHUI INTELLIGENT EQUIPMENT CO Ltd
Current assignee: Shenzhen Shangshui Intelligent Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-11-15
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a vertical nano sand mill, relating to the field of grinding equipment; the grinding machine comprises a machine cabinet assembly, wherein a lower mounting frame and an upper mounting frame are arranged on one side of the machine cabinet assembly, the tail end of the lower mounting frame is connected with the bottom of a grinding cylinder through a lower connecting device, the tail end of the upper mounting frame is connected with the top of the grinding cylinder through an upper connecting device, a discharging cylinder assembly is communicated above the grinding cylinder, a dispersing assembly and a separating assembly are sequentially arranged in the grinding cylinder from bottom to top, a dispersing main shaft of the dispersing assembly is in transmission connection with a lower motor assembly arranged on the lower mounting frame, and a separating main shaft of the separating assembly is in transmission connection with an upper motor assembly arranged on the upper mounting frame; the separation main shaft is of a hollow structure, and the top of the separation main shaft is positioned in the discharging barrel assembly and communicated with the inside of the discharging barrel assembly. The utility model discloses a double dynamical drive mode, dispersion unit and separation unit are through the main shaft independent operation of difference, and nimble degree is high, and the crystal damage is little, has improved grinding efficiency.

Description

Vertical nano sand mill

Technical Field

The utility model relates to a grinding device technical field especially relates to a vertical nanometer sand mill.

Background

The sand grinding device is a high-efficiency ultramicro grinding device which is widely used in non-metal mineral industries such as coating, chemical industry, dye, paint, printing ink, medicine, cosmetics and the like. The grinding principle of the vertical sand mill is that a grinding medium generates shearing force, collision force and crushing force through the high-speed movement of a rotor, so that solid particle materials in fluid are dispersed, crushed, ground, depolymerized, homogenized and emulsified. The existing vertical sand mill adopts a single-power driving mode and a rod pin type rotor shape structure, and the dispersing unit and the separating unit are simultaneously driven to rotate by the same hollow main shaft and are coaxially driven, so that double shafts cannot be independently driven respectively, the flexibility is low, the damage to nano particle crystals is large, and the grinding efficiency is low. Particularly, when nano-scale grinding is performed, the dispersing unit is required to operate at a lower rotating speed to reduce damage to crystals, and the separating unit is required to operate at a higher rotating speed to avoid escape of grinding media, which cannot be considered at the same time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vertical nanometer sand mill to solve the problem that above-mentioned prior art exists, adopt double dynamical drive mode, dispersion unit and separation unit are through the main shaft independent operation of difference, and nimble degree is high, and crystal damage is little, has improved grinding efficiency.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a vertical nanometer sand mill, including the rack subassembly, rack subassembly one side is provided with lower mounting bracket and upper mounting bracket, the lower mounting bracket end is connected with the grinding vessel bottom through lower connecting device, the upper mounting bracket end is connected with the grinding vessel top through upper connecting device, the grinding vessel top intercommunication has a discharging barrel subassembly, dispersion subassembly and separation subassembly have set gradually in the grinding vessel from bottom to top, the dispersion main shaft of dispersion subassembly is connected with the lower part motor element transmission that sets up on the lower mounting bracket, the separation main shaft of separation subassembly is connected with the upper portion motor element transmission that sets up on the upper mounting bracket; the separation main shaft is of a hollow structure, and the top of the separation main shaft is positioned in the discharge cylinder component and communicated with the interior of the discharge cylinder component. The lower motor assembly drives the dispersing unit to disperse, crush and grind the materials through the dispersing main shaft, the upper motor assembly drives the separating unit to separate the materials from the grinding beads through the separating main shaft, the materials are discharged from bottom to top through the shaft hole of the hollow structure of the separating main shaft, and the grinding beads are settled at the bottom of the grinding cylinder, so that no dead angle is formed in grinding, and particles with smaller fineness and more uniform distribution are obtained; grinding bead in the working process is because the vertical ascending pulling force of self action of gravity and thick liquids offsets each other, and grinding bead and grinding chamber inner wall and bottom wearing capacity are little, the grinding bead is dragged and makes whole grinding chamber wearing and tearing more even, thick liquids flow is big, and the heat is taken away sooner, and the temperature value of equipment is in all the time and predetermines under the upper limit temperature.

Optionally, the lower connecting device includes a lower seat subassembly having a cylindrical structure with an opening at one side, the opening side of the lower seat subassembly is fixedly connected with the tail end of the lower mounting frame, the top of the lower seat subassembly is fixedly connected with the bottom of the grinding drum through a lower mechanical seal assembly, the bottom of the dispersion main shaft passes through the grinding drum and the lower mechanical seal assembly and then is located in the lower seat subassembly, and the part of the dispersion main shaft located in the lower seat subassembly is in transmission connection with the lower motor group through a transmission belt or a chain; a lower sealing plug is arranged at an opening at the bottom of the grinding cylinder, and the dispersing main shaft penetrates through the lower sealing plug.

Optionally, the upper connecting device includes an upper seat subassembly having a cylindrical structure with an opening at one side, the opening side of the upper seat subassembly is fixedly connected with the end of the upper mounting frame, the bottom of the upper seat subassembly is fixedly connected with the top of the grinding cylinder through an upper sealing assembly, and the discharging cylinder assembly is fixedly arranged at the top of the upper seat subassembly; the top of the separation main shaft penetrates through the grinding cylinder, the upper sealing assembly and the upper base subassembly and then is positioned in the discharging cylinder assembly, and the part of the separation main shaft positioned in the upper base subassembly is in transmission connection with the upper motor set through a transmission belt or a chain; the top of the grinding cylinder and the bottom of the discharge cylinder assembly are respectively provided with an upper sealing plug, and the separation main shaft penetrates through the upper sealing plugs.

Optionally, the upper mounting bracket is slidably disposed on a linear bearing assembly on the cabinet assembly, an electric push rod assembly is fixedly disposed on the cabinet assembly, and the electric push rod assembly is electrically connected to a lifting device control panel assembly; the electric push rod assembly is located below the upper mounting frame and can push the upper mounting frame to slide up and down along the linear bearing assembly.

Optionally, a mechanical sealing tank assembly and a magnetic gear pump assembly are fixedly mounted on the cabinet assembly; the feed inlet is in grinding cylinder bottom, the discharge gate is at the grinding cylinder top, the thick liquids get into the grinding chamber from the feed inlet, through grinding, the dispersion, flow out from hollow separating axle, the flow direction of thick liquids is from bottom to top, grinding bead self receives perpendicular decurrent action of gravity, the shearing force that receives the thick liquids simultaneously and perpendicular ascending thrust, can offset the gravity of grinding bead, the grinding bead constantly receives upward thrust at the grinding cylinder, can not sink to the grinding cylinder bottom for the grinding bead distributes more evenly in the grinding cylinder.

Optionally, the separation assembly comprises a separator upper cover and a separator lower cover; the separator upper cover and the separator lower cover are connected through separator pull rods which are linearly arranged, a plurality of separator straight blades are uniformly distributed between the separator upper cover and the separator lower cover in the circumferential direction, a separator cover plate is fixedly connected to the bottom of the separator lower cover, and the bottom of the separation main shaft penetrates through the separator lower cover and then is fixedly connected with the separator cover plate; the top of the separator upper cover is fixedly connected with a separator backing plate, and the separation main shaft penetrates through the separator backing plate; an inlet communicated with a hollow structure in the separation main shaft is formed in the side wall of the lower part of the separation main shaft; when separating assembly was touch to grinding pearl and thick liquids, because the centrifugal force effect, grinding pearl can throw away from separating assembly, and the grinding chamber up flows out is down followed to the thick liquids, and grinding pearl can not block in the separating assembly the inside, does not block up, leak the pearl, does not run the pearl, grinding pearl and thick liquids separation rate are fast, dismantle convenient, convenient washing, work load is little, production efficiency is high.

Optionally, a rotor is fixedly arranged on the dispersing main shaft, the rotor includes a plurality of impeller type rotors with gradually decreasing inclination angles from bottom to top, a pin type rotor is fixedly arranged above the impeller type rotors, and an L-shaped rotor is fixedly arranged at the bottom of the impeller type rotors.

Optionally, a plurality of U-shaped grooves are symmetrically formed at the bottom of the separator upper cover and the top of the separator lower cover; adjacent two the contained angle has between the straight blade of separator, and the contained angle value does not do specifically and prescribes a limit to, and one of them preferred scheme's contained angle is 45, separator PTFE gasket joint in on the straight blade of separator the U type inslot of separator upper cover, separator PTFE gasket joint in the U type inslot of separator lower cover is passed through to the straight blade lower part of separator.

The utility model discloses for prior art gain following technological effect:

the utility model discloses a double dynamical drive mode, independent driven biax mechanism separately realizes that dispersion rotor low-speed is rotatory and the high-speed rotation of separating wheel carries out thick liquids dispersion, mill pearl separation, and separation, dispersion devices are two independent units, but dispersion unit is driven low-speed or high-speed rotation by solid dispersion axle, and separation unit is driven high-speed rotation by hollow separation axle, independent drive separately, and the flexibility is big, the nanocrystal damage is little, the leak-free does not have the pearl phenomenon of running. The vertical strip-shaped blades are uniformly distributed in the circumferential direction, the included angle between each blade and each blade is 45 degrees, the separating devices are independently driven and independent from the grinding rotating speed, the rotating speed can be adjusted according to the characteristics of materials to adapt to the separation of different materials, and the grinding beads and the slurry are high in separating speed, convenient to disassemble, convenient to clean, free of bead leakage and free of bead leakage. The impeller type rotor shape with 5 degrees, 2 degrees and 0 degrees of blades uniformly distributed in the circumferential direction is adopted, material particles and grinding beads can rotate, and the particles are distributed more uniformly. Adopt carborundum or silicon nitride pottery's grinding chamber and rotor material, the grinding chamber heat conductivity is better, can make the thick liquids dispel the heat fast through the cooling water layer, and the thick liquids are pollution-free. The slurry flow direction and the discharge mode of feeding in and discharging out from the lower part are adopted, the gravity of the grinding beads and the pulling force generated by the slurry on the grinding beads are mutually offset, and the grinding beads are more uniformly distributed in the grinding cylinder.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the main structure of the vertical nano-sand mill of the present invention;

FIG. 2 is a schematic side view of the vertical nano-sand mill of the present invention;

FIG. 3 is a schematic cross-sectional view of the grinding cylinder assembly of the present invention;

FIG. 4 is a schematic top view of the grinding cylinder assembly of the present invention;

FIG. 5 is a schematic cross-sectional view of the separation module of the present invention;

fig. 6 is a schematic top view of the separator assembly of the present invention;

fig. 7 is a schematic cross-sectional view of the dispersing assembly of the present invention;

fig. 8 is a schematic top view of the dispensing assembly of the present invention;

description of reference numerals: 1 grinding barrel assembly, 2 separator assembly, 201 separator upper cover, 202 separator lower cover, 203 separator tie rod, 204 separator straight blade, 205 separator PTFE gasket, 206 separator cover plate, 207 separator gasket, 208 separation spindle, 3 dispersion assembly, 301 first impeller rotor, 302 second impeller rotor, 303 third impeller rotor, 304L rotor, 305 first pin rotor, 306 second pin rotor, 307 dispersion cover plate, 308 silicone rubber packing layer, 309 dispersion spindle, 4 upper seat assembly, 5 lower seat assembly, 6 upper seat assembly, 7 lower seat assembly, 8 take-off barrel assembly, 9 upper motor assembly, 10 lower motor assembly, 11 linear bearing assembly, 12 electric push rod assembly, 13 lift control device control panel assembly, 14 magnetic gear pump assembly, 15 machine seal tank assembly, 16 cabinet assembly.

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 work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The utility model provides a vertical nanometer sand mill, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, including cabinet component 16, cabinet component 16 one side is provided with lower mounting bracket and upper mounting bracket, the lower mounting bracket end is connected with the grinding cylinder bottom of grinding cylinder component 1 through lower connecting device, the upper mounting bracket end is connected with the grinding cylinder top through upper connecting device, the grinding cylinder top is communicated with discharging cylinder component 8, dispersing component 3 and separating component 2 are set up in the grinding cylinder from bottom to top in proper order, dispersing main shaft 309 of dispersing component 3 is connected with lower part motor element 10 set up on lower mounting bracket in a transmission way, separating main shaft 208 of separating component 2 is connected with upper part motor element 9 set up on upper mounting bracket in a transmission way; the separation main shaft 208 is of a hollow structure, and the top of the separation main shaft 208 is located in the discharging barrel assembly 8 and is communicated with the inside of the discharging barrel assembly 8. The lower motor component 10 drives the dispersing unit to disperse, crush and grind materials through the dispersing main shaft 309, the upper motor component 9 drives the separating unit through the separating main shaft 208 to separate the materials from grinding beads, the materials are discharged from bottom to top through the shaft hole of the hollow structure of the separating main shaft 208, a double-shaft mechanism driven independently is formed to realize low-speed rotation of the dispersing rotor and high-speed rotation of the separating wheel to disperse and separate grinding beads, the grinding beads and the slurry are separated quickly due to the action of centrifugal force, the grinding beads are separated from the separating component in the clockwise direction, and the slurry flows out of a grinding cavity from bottom to top from the center of the hollow shaft of the separating main shaft 208, so that no bead leakage, no blockage and no material leakage exist.

The dispersing component 3 is arranged in a grinding cavity of the grinding cylinder component 1, the grinding cavity is made of silicon nitride ceramics, the heat conductivity is good, the hardness is large, the abrasion is small, pollution-free and rapid heat dissipation of slurry is realized, the separating component 2 is positioned above the dispersing component 3, and a separating main shaft 208 of the separating component 2 and a dispersing main shaft 309 of the dispersing component 3 are concentrically arranged; the dispersing main shaft 309 is fixedly provided with a rotor, the dispersing main shaft 309 can also be provided with a round shaft or a pin shaft with a key slot besides adopting a square shaft, the rotor comprises three impeller type rotors with gradually reduced inclination angles from bottom to top, a first impeller type rotor 301, a second impeller type rotor 302 and a third impeller type rotor 303 are respectively arranged from bottom to top, two pin type rotors are fixedly arranged above the third impeller type rotor 303, a first pin type rotor 305 and a second pin type rotor 306 are respectively arranged from bottom to top, a dispersing part cover plate 307 is arranged at the top of the second pin type rotor 306, the dispersing part cover plate 307 is fixedly connected with the top of the dispersing main shaft 309, a silicon rubber filling layer 308 is arranged between the dispersing part cover plate 307 and the top of the pin type rotor positioned at the top, an L-shaped rotor 304 is fixedly arranged at the bottom of the first impeller type rotor 301, the whole rotor is uniformly worn, and the service life is prolonged. The rotor drives grinding beads and slurry to rotate together at a high speed in the grinding cavity, the grinding beads cannot sink to the bottom of the grinding cylinder due to the high-speed motion of the pin type rotor, the grinding efficiency can be improved due to the high-speed motion of the pin type rotor, the whole grinding cavity can be uniformly abraded due to the combination form between the rotors, and particles with smaller fineness and more uniform distribution can be obtained.

Further preferably, the lower connecting device comprises a lower seat subassembly 7 with a cylindrical structure and an opening at one side, the opening side of the lower seat subassembly 7 is fixedly connected with the tail end of the lower mounting frame, the top of the lower seat subassembly 7 is fixedly connected with the bottom of the grinding cylinder through a lower mechanical seal assembly 5, the bottom of the dispersing main shaft 309 penetrates through the grinding cylinder and the lower mechanical seal assembly 5 and then is positioned in the lower seat subassembly 7, all the parts can be connected in a flange and bolt connection mode so as to be convenient to detach and install, and the part of the dispersing main shaft 309 positioned in the lower seat subassembly 7 is in transmission connection with the lower motor set 10 through a transmission belt or a chain; a lower sealing plug is arranged at the opening at the bottom of the grinding cylinder, and a dispersion spindle 309 penetrates through the lower sealing plug. The upper connecting device comprises an upper seat subassembly 6 with a cylindrical structure and an opening at one side, the opening side of the upper seat subassembly 6 is fixedly connected with the tail end of an upper mounting frame, the bottom of the upper seat subassembly 6 is fixedly connected with the top of a grinding cylinder through an upper mechanical seal assembly 4, a discharging cylinder of a discharging cylinder assembly 8 is fixedly arranged at the top of the upper seat subassembly 6, and the connection mode of all parts can adopt structures such as flange bolts; the top of the separation main shaft 208 penetrates through the grinding cylinder, the upper sealing assembly 4 and the upper seat subassembly 6 and then is positioned in the discharge cylinder assembly 8, and the part of the separation main shaft 208 positioned in the upper seat subassembly 6 is in transmission connection with the upper motor assembly 9 through a transmission belt or a chain; the top of the grinding cylinder and the bottom of the discharge cylinder component 8 are respectively provided with an upper sealing plug, and the separation main shaft 208 penetrates through the upper sealing plug, so that the sealing effect is improved, and material leakage is avoided. The upper mounting frame is arranged on a linear bearing assembly 11 on a cabinet assembly 16 in a sliding mode, an electric push rod assembly 12 is fixedly arranged on the cabinet assembly 16, the electric push rod assembly 12 is electrically connected with a lifting device control panel assembly 13, and the lifting device control panel assembly 13 can control the electric push rod to stretch and retract so as to control the upper mounting frame to slide up and down; the power operated push rod assembly 12 is located below the upper mounting bracket and the power operated push rod assembly 12 is capable of pushing the upper mounting bracket to slide up and down along the linear bearing assembly 11.

The grinding cylinder assembly 1 comprises a grinding cylinder which is fixedly and vertically arranged, an outer cylinder is fixedly sleeved on the outer side of the grinding cylinder, a plurality of bosses are uniformly arranged on the inner wall of the grinding cylinder and located at the position of a grinding cavity, and the bosses and the rotor are mutually staggered, arranged in a tangent mode and matched more closely; the boss is for containing fillet structure, the cross sectional shape of boss does not restrict, also can be right trapezoid, isosceles trapezoid, the U type, boss and grinding vessel inner wall are the integral type, the specific quantity of boss can be selected in a flexible way as required, in this embodiment, the axial direction evenly distributed of dispersion region is 10 rows, every row evenly distributed of circumferencial direction is 6, and stagger the range on axial and radial position with impeller formula and excellent round pin formula on grinding rotor, whole dispersion region atress is even, grind more fully, the boss can not take place to become flexible simultaneously, drop, the phenomenon of rupture. A plurality of spiral guide plates with the thickness of 3mm are fixedly arranged between the outer cylinder and the grinding cylinder, and cooling water layers are distributed between every two adjacent guide plates. A heat-insulating layer with the thickness of 10mm is arranged in the outer cylinder, and the heat-insulating layer is of an annular space structure with a rectangular cross section; a machine sealing tank assembly 15 and a magnetic gear pump assembly 14 are fixedly mounted on the cabinet assembly 16 and used for ensuring the circulation operation of machine sealing washing liquid.

The separation assembly 2 comprises a separator upper cover 201 and a separator lower cover 202; the separator pull rod 203 with the length-diameter ratio of 1 is linearly arranged between the separator upper cover 201 and the separator lower cover 202 along the circumferential direction by 2 x 2, a plurality of separator straight blades 204 are uniformly distributed between the separator upper cover 201 and the separator lower cover 202 in the circumferential direction, and the separator straight blades are sequentially arranged in the anticlockwise direction; the separating device can be realized by L-shaped blades or bent blades besides straight-strip blades; the bottom of the separator lower cover 202 is fixedly connected with a separator cover plate 206, and the bottom of the separation main shaft 208 penetrates through the separator lower cover 202 and is fixedly connected with the separator cover plate 206; the top of the separator upper cover 201 is fixedly connected with a separator backing plate 207, and the top of the separation main shaft 208 penetrates through the separator backing plate 207; an inlet communicated with the hollow structure in the separation main shaft 208 is formed in the side wall of the lower part of the separation main shaft 208. A plurality of U-shaped grooves are symmetrically formed in the bottom of the separator upper cover 201 and the top of the separator lower cover 202; in this embodiment, an included angle between two adjacent separator straight blades 204 is 45 °, the upper portions of the separator straight blades 204 are clamped in the U-shaped groove of the separator upper cover 201 through a separator PTFE gasket 205, and the lower portions of the separator straight blades 204 are clamped in the U-shaped groove of the separator lower cover 202 through the separator PTFE gasket 205.

The utility model discloses a double dynamical drive mode, the separating wheel of a plurality of vertical blades, the rotor shape of a plurality of impeller formula blades, the structural design of the ejection of compact mode of going out on advancing down, blade quantity does not do the injecing, the separating wheel of 24 vertical blades and the rotor shape of 6 impeller formula blades are taken to this embodiment, vertical nanometer sand mill can biax independent drive control rotational speed, the grinding pearl can not subside in grinding chamber bottom, grinding pearl and thick liquids can the quickly separating, make and obviously accelerate high viscosity material grinding efficiency, the pearl is not leaked in the time of moving under the operating mode of high viscosity and powerful centrifugal separation, the pearl does not run, not putty, the material leakage, the wearing and tearing volume is little.

In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for those skilled in the art, the idea of the present invention may be changed in the specific embodiments and the application range. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A vertical nanometer sand mill is characterized in that: the grinding machine comprises a machine cabinet assembly, wherein a lower mounting frame and an upper mounting frame are arranged on one side of the machine cabinet assembly, the tail end of the lower mounting frame is connected with the bottom of a grinding cylinder through a lower connecting device, the tail end of the upper mounting frame is connected with the top of the grinding cylinder through an upper connecting device, a discharging cylinder assembly is communicated above the grinding cylinder, a dispersing assembly and a separating assembly are sequentially arranged in the grinding cylinder from bottom to top, a dispersing main shaft of the dispersing assembly is in transmission connection with a lower motor assembly arranged on the lower mounting frame, and a separating main shaft of the separating assembly is in transmission connection with an upper motor assembly arranged on the upper mounting frame; the separation main shaft is of a hollow structure, and the top of the separation main shaft is positioned in the discharge cylinder component and communicated with the interior of the discharge cylinder component.

2. The vertical nano-sand mill according to claim 1, characterized in that: the lower connecting device comprises a lower seat subassembly with a cylindrical structure and an opening at one side, the opening side of the lower seat subassembly is fixedly connected with the tail end of the lower mounting frame, the top of the lower seat subassembly is fixedly connected with the bottom of the grinding cylinder through a lower mechanical seal assembly, the bottom of the dispersing main shaft penetrates through the grinding cylinder and the lower mechanical seal assembly and then is positioned in the lower seat subassembly, and the part of the dispersing main shaft positioned in the lower seat subassembly is in transmission connection with the lower motor set through a transmission belt or a chain; a lower sealing plug is arranged at an opening at the bottom of the grinding cylinder, and the dispersing main shaft penetrates through the lower sealing plug.

3. The vertical nano-sand mill according to claim 1, characterized in that: the upper connecting device comprises an upper seat subassembly with an opening at one side and a cylindrical structure, the opening side of the upper seat subassembly is fixedly connected with the tail end of the upper mounting frame, the bottom of the upper seat subassembly is fixedly connected with the top of the grinding cylinder through an upper sealing assembly, and the discharging cylinder assembly is fixedly arranged at the top of the upper seat subassembly; the top of the separation main shaft penetrates through the grinding cylinder, the upper sealing assembly and the upper base subassembly and then is positioned in the discharging cylinder assembly, and the part of the separation main shaft positioned in the upper base subassembly is in transmission connection with the upper motor set through a transmission belt or a chain; the top of the grinding cylinder and the bottom of the discharge cylinder assembly are respectively provided with an upper sealing plug, and the separation main shaft penetrates through the upper sealing plugs.

4. The vertical nano-sand mill according to claim 3, characterized in that: the upper mounting frame is slidably arranged on the linear bearing assembly on the cabinet assembly, an electric push rod assembly is fixedly arranged on the cabinet assembly, and the electric push rod assembly is electrically connected with a lifting device control panel assembly; the electric push rod assembly is located below the upper mounting frame and can push the upper mounting frame to slide up and down along the linear bearing assembly.

5. The vertical nano-sand mill according to claim 1, characterized in that: the separation assembly comprises a separator upper cover and a separator lower cover; the separator upper cover and the separator lower cover are connected through a separator pull rod which is linearly arranged, a plurality of separator straight blades are uniformly distributed between the separator upper cover and the separator lower cover in the circumferential direction, a separator cover plate is fixedly connected to the bottom of the separator lower cover, and the bottom of the separation main shaft penetrates through the separator lower cover and then is fixedly connected with the separator cover plate; the top of the separator upper cover is fixedly connected with a separator backing plate, and the separation main shaft penetrates through the separator backing plate; and the side wall of the lower part of the separation main shaft is provided with an inlet communicated with the hollow structure in the separation main shaft.

6. The vertical nano-sand mill according to claim 1, characterized in that: the dispersing main shaft is fixedly provided with a rotor, the rotor comprises a plurality of impeller type rotors with gradually reduced inclination angles from bottom to top, a pin type rotor is fixedly arranged above the impeller type rotors, and an L-shaped rotor is fixedly arranged at the bottom of the impeller type rotors.

7. The vertical nano-sand mill according to claim 5, characterized in that: a plurality of U-shaped grooves are symmetrically formed in the bottom of the upper cover of the separator and the top of the lower cover of the separator; adjacent two contained angle has between the straight blade of separator, straight blade upper portion of separator pass through separator PTFE gasket joint in the U type inslot of separator upper cover, straight blade lower part of separator pass through separator PTFE gasket joint in the U type inslot of separator lower cover.