WO2024002053A1

WO2024002053A1 - Dispersion device

Info

Publication number: WO2024002053A1
Application number: PCT/CN2023/102669
Authority: WO
Inventors: 杜保东; 李统柱; 金旭东
Original assignee: 深圳市尚水智能股份有限公司
Priority date: 2022-06-28
Filing date: 2023-06-27
Publication date: 2024-01-04
Also published as: CN114950650A

Abstract

The present invention discloses a dispersion device. The dispersion device comprises a grinding cylinder assembly (1), a separation assembly (2) and a dispersion assembly (3). The dispersion assembly (3) is arranged in the grinding cavity (105) of the grinding cylinder assembly (1). The separation assembly (2) is arranged above the dispersion assembly (3), and the separation main shaft (201) of the separation assembly (2) and the dispersion main shaft (309) of the dispersion assembly (3) are concentrically arranged. The separation main shaft (201) and the dispersion main shaft (309) are respectively externally connected to transmission devices. Rotors are fixedly arranged on the dispersion main shaft (309), and comprise multiple impeller-type rotors, the inclination angles of which gradually decrease from bottom to top. Pin-type rotors are fixedly arranged above the impeller-type rotors, and L-shaped rotors (304) are fixedly arranged at the bottom of the impeller-type rotors. The invention avoids the problem of uneven local abrasion caused by grinding beads settling to the bottom of the grinding cylinder (101).

Description

a dispersion device

Technical field

The present invention relates to the technical field of grinding equipment, and in particular to a dispersing device.

Background technique

Nano sand grinding device is a high-efficiency ultra-fine grinding equipment widely used in non-metallic mineral industries such as coatings, chemicals, dyes, paints, inks, medicines and cosmetics. Based on the dispersion mechanism of the sand grinding device, the dispersion device of the existing sand grinding device adopts a rod-pin rotor shape structure. The pins of the grinding rotor and the pins on the inner wall of the grinding barrel are arranged staggered to each other and separated by a fixed disk distance. Each rotor There is a cylindrical pin with an angle of 0°. The material particles and grinding beads cannot be completely pulled up and rotated. The grinding beads will settle to the bottom of the grinding barrel, causing uneven local wear and uneven particle distribution.

Contents of the invention

The purpose of the present invention is to provide a dispersion device to solve the above-mentioned problems existing in the prior art, avoid the grinding beads from settling to the bottom of the grinding barrel, and weaken the phenomenon of uneven local wear.

In order to achieve the above objects, the present invention provides the following solutions:

The invention provides a dispersing device, which includes a grinding barrel assembly, a separation assembly and a dispersing assembly; the dispersing assembly is arranged in the grinding cavity of the grinding barrel assembly, and the grinding cavity is made of silicon nitride ceramics with good thermal conductivity and high hardness. , small wear, achieving pollution-free slurry and rapid heat dissipation. The separation component is located above the dispersion component, and the separation spindle of the separation component and the dispersion spindle of the dispersion component are concentrically arranged; the separation spindle and the dispersion spindle are externally connected respectively. There is a transmission device; a rotor is fixedly provided on the dispersion main shaft, and the rotor includes a plurality of impeller-type rotors with gradually decreasing inclination angles from bottom to top. A pin-type rotor is fixedly installed above the impeller-type rotor. An L-shaped rotor is fixed at the bottom of the rotor. The rotor drives the grinding beads and slurry to rotate at high speed in the grinding chamber. The high-speed movement of the pin-type rotor prevents the grinding beads from settling to the bottom of the grinding barrel. The high-speed rotation of the inclined impeller-type rotor prevents the grinding beads from sinking continuously. The local wear of the grinding rotor and the inner wall of the grinding barrel makes the flow field more uniform. The high-speed movement and strong collision of the pin-type rotor can improve the grinding efficiency, achieve uniform wear of the entire grinding chamber, and obtain more evenly distributed particles, which can improve the grinding efficiency.

Optionally, the grinding barrel assembly includes a grinding barrel that is fixed and vertically arranged. An outer barrel is fixedly sleeved on the outside of the grinding barrel. A plurality of bosses are evenly arranged on the inner wall of the grinding barrel, and the bosses are connected to the grinding barrel. The rotors are arranged staggered to each other; the boss has a rounded structure, and the boss and the inner wall of the grinding barrel are integrated. There are 10 rows evenly distributed in the axial direction of the dispersed area and 6 in each row in the circumferential direction, and are connected with the grinding rotor. The upper impeller type and rod pin type are staggered in the axial and radial positions. The entire dispersed area is evenly stressed and the grinding is more complete. At the same time, the boss will not loosen, fall off, or break.

Optionally, a plurality of spiral guide plates are fixedly arranged between the outer cylinder and the grinding cylinder, and a cooling water layer is distributed between two adjacent guide plates.

Optionally, a thermal insulation layer is provided inside the outer cylinder, and the thermal insulation layer is an annular space structure with a rectangular cross-section.

Optionally, the top of the rod-pin rotor located at the top is provided with a dispersion part cover plate, and the dispersion part cover plate is connected with the dispersion part cover plate. The top of the dispersion spindle is fixedly connected, and a silicone rubber filling layer is provided between the dispersion part cover and the top of the top pin rotor.

Optionally, the impeller type rotor includes a rotor sleeve fixedly sleeved on the dispersion main shaft, and a plurality of blades with inclination angles are evenly arranged on the outer wall of the rotor sleeve. The angles of the blades are 5°, 2°, and 0° respectively. The angles are arranged 1, 1, and 2 in a decreasing trend from bottom to top. The blades on the rotor have an inclination angle, so that the material particles and grinding beads can rotate, and the grinding beads can rotate. It will be dragged upward to make the entire grinding barrel wear more evenly; in addition to the blade angles of 5°, 2°, and 0°, the blade angle of the impeller rotor can also be adjusted through angles of 6°, 3°, 0°, or 4°. , 2°, 0° or angle 2°, 1°, 0° to achieve. The angle must show a decreasing trend and is not limited to 5°, 2°, and 0°. In addition to the aligned arrangement, the impeller rotors can also be realized by staggered arrangement. In addition to 45°, the staggered angle can also be 30° or 60°.

Optionally, the rod-pin rotor includes a rotor sleeve fixedly sleeved on the dispersion main shaft. A plurality of rod pins with a cylindrical structure are evenly arranged on the outer wall of the rotor sleeve. The shape of the rod-pin rotor is In addition to the rod-pin type, it can also be realized by an impeller type with a blade angle of 0°. The pins or blades on the pin rotor have the same shape and an angle of 0°. The shape of the rotor is not limited to the pin type.

Optionally, the L-shaped rotor includes a rotor sleeve fixedly sleeved on the dispersion main shaft. A plurality of L-shaped connecting rods are evenly arranged on the outer wall of the rotor sleeve. The L-shaped connecting rods include horizontal rod and vertical rod, one end of the horizontal rod of the L-shaped connecting rod is fixedly connected to the outer wall of the rotor sleeve, and the upper end of the other end is fixedly connected to the vertical rod. In addition to 4 blades or rod pins on each rotor, the number can also be realized by 2, 3, 5, or 6 blades.

Compared with the prior art, the present invention achieves the following technical effects:

The invention adopts silicon nitride ceramic rotor and grinding barrel materials. The rotor has higher wear resistance and can extend its service life. The grinding barrel has better thermal conductivity and can quickly dissipate heat of the slurry through the cooling water layer. It adopts several rows of raised structures with rounded bosses on the grinding barrel. The bosses are tangent to the outermost diameter of the rotor in the radial direction, and the bosses are staggered in the axial direction of the rotor, resulting in more complete grinding and more even particle distribution. In addition to the square shaft, the dispersing shaft is closely matched with the grinding rotor and rotates at the same speed at high speed. The upper part of the dispersing assembly uses several rows of pin-type rotors evenly distributed in the circumferential direction with an angle of 0° to grind the material particles and grinding beads. The efficiency is higher; the grinding beads offset each other due to their own gravity and the vertical upward pulling force of the slurry. At the same time, the impeller-type rotor with a decreasing trend from bottom to top can prevent uneven local wear caused by the settlement of the grinding beads. Being dragged upward makes the entire grinding chamber wear more evenly.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the drawings of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic cross-sectional view of the dispersion device of the present invention;

Figure 2 is a schematic top view of the dispersion device of the present invention;

Figure 3 is a schematic cross-sectional view of the dispersion component of the dispersion device of the present invention;

Figure 4 is a schematic top view of the dispersion assembly of the dispersion device of the present invention;

Figure 5 is a schematic structural diagram of the impeller rotor of the present invention;

Figure 6 is a schematic structural diagram of the L-shaped rotor of the present invention;

Figure 7 is a schematic structural diagram of the first pin-type rotor of the present invention;

Figure 8 is a schematic structural diagram of the second pin-type rotor of the present invention;

Figure 9 is a schematic diagram of the boss structure of the present invention;

Explanation of reference signs: 1 grinding barrel assembly, 101 grinding barrel, 102 outer barrel, 103 boss, 104 guide plate, 105 grinding chamber, 106 cooling water layer, 107 insulation layer, 2 separation component, 201 separation spindle, 3 dispersion Components, 301 first impeller type rotor, 302 second impeller type rotor, 303 third impeller type rotor, 304L type rotor, 305 first pin type rotor, 306 second pin type rotor, 307 dispersion part cover, 308 Silicone rubber filling layer, 309 dispersion spindle.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

The present invention provides a dispersing device, which solves the problems of the traditional dispersing device, such as grinding beads constantly sinking when grinding high-viscosity nanomaterials, causing uneven wear, uneven flow field, and large wear in the entire grinding chamber, as shown in Figure 1. As shown in Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8 and Figure 9, it includes a grinding barrel assembly 1, a separation assembly 2 and a dispersion assembly 3; the dispersion assembly 3 is arranged on the grinding barrel assembly 1 In the grinding chamber 105, the material of the grinding chamber 105 is silicon nitride ceramic, which has good thermal conductivity, high hardness, and low wear, achieving no pollution of the slurry and rapid heat dissipation. The separation component 2 is located above the dispersion component 3, and the separation spindle of the separation component 2 201 and the dispersing spindle 309 of the dispersing component 3 are concentrically arranged; the separating spindle 201 and the dispersing spindle 309 are respectively connected with external transmission devices. The dispersing spindle 309 drives the dispersing component 3 to rotate at high speed to grind, disperse and crush the materials, and then through the different separation components 2 The grinding beads are separated from the slurry at a rotating speed; a rotor is fixed on the dispersing spindle 309. In addition to using a square shaft, the dispersing spindle 309 can also pass through a round shaft with a keyway or a pin shaft. The rotor includes three inclination angles that gradually decrease from bottom to top. There are three impeller-type rotors, which are respectively the first impeller-type rotor 301, the second impeller-type rotor 302 and the third impeller-type rotor 303 from bottom to top. Two pin-type rotors are fixedly arranged above the third impeller-type rotor 303, respectively. The first pin rotor 305 and the second pin rotor 306 are arranged from bottom to top. The top of the second pin rotor 306 is provided with a dispersion cover 307. The dispersion cover 307 is fixedly connected to the top of the dispersion main shaft 309. Moreover, a silicone rubber filling layer 308 is provided between the dispersion part cover 307 and the top of the pin-type rotor located at the top, and an L-shaped rotor 304 is fixedly installed at the bottom of the first impeller-type rotor 301. The entire rotor is evenly worn, which improves the service life. . The rotor drives the grinding beads and slurry to rotate at high speed in the grinding chamber. The high-speed movement of the pin-type rotor prevents the grinding beads from settling to the bottom of the grinding barrel. The high-speed rotation of the inclined impeller-type rotor prevents the grinding beads from sinking continuously. The local wear of the grinding rotor and the inner wall of the grinding barrel, the high-speed movement of the pin-type rotor can improve the grinding efficiency, and the combination between the rotors can achieve uniform wear of the entire grinding chamber, resulting in smaller fineness and more evenly distributed particles.

The separation device is a separation wheel. The separation wheel has 24 straight blades in the circumferential direction. The angle between the blades is 45°. The blades are stuck between the upper cover of the separator and the lower cover of the separator. The grinding beads and the slurry collide. When reaching the separation wheel, due to the centrifugal force, the grinding beads will be thrown out from the separation wheel, and the slurry will flow out of the grinding chamber from bottom to top. The grinding beads will not get stuck in the separation wheel, and there will be no clogging, no leakage, no running of beads, and no grinding. The separation speed of beads and slurry is fast, easy to disassemble, easy to clean and easy to operate. Small workload and high production efficiency. The feed port is at the bottom of the grinding barrel, and the discharge port is at the top of the grinding barrel. The slurry enters the grinding chamber from the feed port, is ground and dispersed, and flows out from the hollow separation spindle. The flow direction of the slurry is from bottom to top, and the grinding beads themselves are affected by The vertical downward gravity, combined with the shear force of the slurry and the vertical upward thrust, can offset the gravity of the grinding beads. The grinding beads are continuously pushed upward in the grinding barrel and will not settle to the bottom of the grinding barrel, making the grinding beads at the bottom of the grinding barrel. More even distribution within the grinding barrel.

The grinding barrel assembly 1 includes a grinding barrel 101 that is fixed and vertically arranged. An outer barrel 102 is fixedly mounted on the outside of the grinding barrel 101. A plurality of bosses 103 are evenly arranged on the inner wall of the grinding barrel 101. The bosses 103 are located at the position of the grinding chamber 105. The boss 103 and the rotor are arranged staggered to each other and set tangentially, so that the cooperation is closer; the boss 103 has a rounded structure, and the cross-sectional shape of the boss 103 is not limited. It can also be a right-angled trapezoid, an isosceles trapezoid, a U-shaped boss, etc. 103 and the inner wall of the grinding barrel 101 are integrated, with 10 rows evenly distributed in the axial direction of the dispersed area and 6 evenly distributed in each row in the circumferential direction, and are in axial and radial positions with the impeller type and rod pin type on the grinding rotor. By staggering the arrangement on the top, the entire dispersed area is evenly stressed, and the grinding is more complete. At the same time, the boss 103 will not loosen, fall off, or break. A plurality of spiral guide plates 104 with a thickness of 3 mm are fixedly arranged between the outer cylinder 102 and the grinding cylinder 101, and a cooling water layer 106 is distributed between two adjacent guide plates 104. A 10mm thick thermal insulation layer 107 is provided inside the outer cylinder 102, and the thermal insulation layer 107 is an annular space structure with a rectangular cross-section.

Specifically, the impeller rotor includes a rotor sleeve fixedly sleeved on the dispersion main shaft, and a plurality of blades with inclination angles are evenly arranged on the outer wall of the rotor sleeve. The angles of the blades are 5°, 2°, and 0° respectively. The angles are arranged 1, 1, and 2 in a decreasing trend from bottom to top. The blades on the rotor have an inclination angle. The grinding beads are vertically upward due to their own gravity and the slurry. The pulling forces cancel each other out, and the impeller-type rotor with a decreasing angle from bottom to top can prevent uneven local wear caused by the settlement of the grinding beads. The grinding beads are dragged upward to make the entire grinding chamber wear more evenly. Further preferably, the rod pin rotor includes a rotor sleeve fixedly sleeved on the dispersion main shaft, and a plurality of rod pins with a cylindrical structure are evenly arranged on the outer wall of the rotor sleeve. There are four cylindrical pins with an angle of 0° on the first pin rotor 305, three of which are evenly distributed along the axial direction. They are stacked and combined on the impeller rotor, which can improve the grinding efficiency and reduce the particle fineness. . The second rod-pin rotor 306 is provided at the uppermost part of the dispersion assembly 3. Its outermost diameter is consistent with all the lower rotors and is tangent to the outermost edge of the boss. The dispersion part cover plate 307 is used to press all the rotors on the upper part. There is a 2mm thick silicone rubber filling layer 308 between the second pin rotor 306 and the dispersion part cover plate 307, which plays a sealing role. The L-shaped rotor 304 includes a rotor sleeve fixedly sleeved on the dispersion main shaft. A plurality of L-shaped connecting rods are evenly arranged on the outer wall of the rotor sleeve. The L-shaped connecting rods include horizontal rods and vertical rods. One end of the horizontal rod is fixedly connected to the outer wall of the rotor sleeve, and a vertical rod is fixedly connected above the other end; the outermost diameter of the L-shaped rotor is consistent with all the upper rotors, tangent to the outermost edge of the boss, and the bottom surface is connected to the grinding barrel The gap at the bottom is 1mm.

In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations of the invention. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

Specific examples are used in the present invention to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, based on this The idea of the invention will be subject to change in the specific implementation and scope of application. In summary, the contents of this description should not be construed as limitations of the present invention.

Claims

A dispersing device, characterized by: comprising a grinding cylinder assembly, a separation component and a dispersion component; the dispersion component is arranged in the grinding chamber of the grinding cylinder assembly, the separation component is located above the dispersion component, and the The separation main shaft of the separation assembly and the dispersion main shaft of the dispersion assembly are concentrically arranged; the separation main shaft and the dispersion main shaft are externally connected to transmission devices respectively; a rotor is fixedly provided on the dispersion main shaft, and the rotor includes a multi-axis structure with an inclination angle gradually decreasing from bottom to top. An impeller-type rotor is provided with a pin-type rotor fixedly above the impeller-type rotor, and an L-shaped rotor is fixedly installed at the bottom of the impeller-type rotor.
The dispersing device according to claim 1, characterized in that: the grinding barrel assembly includes a grinding barrel that is fixed and vertically arranged, an outer barrel is fixedly sleeved on the outside of the grinding barrel, and there are multiple holes evenly arranged on the inner wall of the grinding barrel. A boss is arranged staggered with the rotor.
The dispersing device according to claim 2, characterized in that: a plurality of spiral guide plates are fixedly arranged between the outer cylinder and the grinding cylinder, and cooling water is distributed between two adjacent guide plates. layer.
The dispersion device according to claim 2, characterized in that: a thermal insulation layer is provided inside the outer cylinder, and the thermal insulation layer is an annular space structure with a rectangular cross-section.
The dispersing device according to claim 1, characterized in that: the top of the pin rotor located at the top is provided with a dispersing part cover, the dispersing part cover is fixedly connected to the top of the dispersing main shaft, and the A silicone rubber filling layer is provided between the dispersion part cover plate and the top of the uppermost rod-pin rotor.
The dispersing device according to claim 1, characterized in that: the impeller rotor includes a rotor sleeve fixedly sleeved on the dispersing main shaft, and a plurality of inclination angles are evenly arranged on the outer wall of the rotor sleeve. blade.
The dispersing device according to claim 1, characterized in that: the pin rotor includes a rotor sleeve fixedly sleeved on the dispersing main shaft, and a plurality of cylindrical shapes are evenly arranged on the outer wall of the rotor sleeve. Structural stick pins.
The dispersing device according to claim 1, wherein the L-shaped rotor includes a rotor sleeve fixedly sleeved on the dispersing main shaft, and a plurality of L-shaped connecting rods are evenly arranged on the outer wall of the rotor sleeve. The L-shaped connecting rod includes a horizontal rod and a vertical rod. One end of the horizontal rod of the L-shaped connecting rod is fixedly connected to the outer wall of the rotor sleeve, and the vertical rod is fixedly connected above the other end.