Multi-layer serial axial flow slurry disperser and powder-liquid mixer

Abstract

The present invention discloses a multi-layer serial axial flow slurry dispersing device and powder-liquid mixing device, in which multiple layers of dispersing rotors and dispersing stators are provided within a housing, the dispersing rotors and dispersing stators are stacked in the axial direction, the inside of the dispersing rotor is thin on the outside, the outside of the dispersing stator is thick on the outside and thin on the inside, the rotor dispersing ring and the stator dispersing ring are spaced apart, the rotor dispersing ring enters the rotor ring receiving groove, and the stator dispersing ring enters the stator ring receiving groove. The through-holes of the dispersing rotor and dispersing stator of the present invention run through in the axial direction, and in this dispersion structure, the liquid slurry only needs to flow through the axial flow path from bottom to top without having to turn, which shortens the slurry formation process, reduces flow resistance, ensures smooth flow, minimizes flow loss, is efficient, and consumes less energy. Furthermore, as the slurry flows axially from bottom to top through the through-holes, the flow rate and velocity at each part of the through-hole are consistent, ensuring uniform dispersion in the dispersion area, resulting in more uniform dispersion and improved dispersion efficiency, and contributing to improved energy utilization.

Description

[Technical Field]

[0001] The present invention relates to the technical field of slurry dispersion, and in particular to a multi-layer serial axial flow type slurry dispersion device and a powder-liquid mixing device. [Background technology]

[0002] The powder-liquid mixer is usually provided with a slurry disperser that disperses the slurry and then sends it to a powder-liquid mixing area to mix with the powder.

[0003] The slurry disperser in the conventional powder-liquid mixer usually adopts the radial flow method for dispersion treatment, that is, the slurry flows radially between the through holes of the stator and the rotor, and then flows through the disperser in a flow path from inside to outside to inside, making multiple turns to be sufficiently dispersed. In such a disperser, the slurry flow is long and requires multiple turns, which results in high flow resistance, an unsmooth flow, large flow loss, low efficiency, and high energy consumption. Summary of the Invention [Problem to be solved by the invention]

[0004] In order to address the above-mentioned shortcomings of conventional slurry dispersing devices, the present applicant provides a multi-layer serial axial flow slurry dispersing device and powder-liquid mixing device that has a short slurrying process, low flow resistance, high efficiency, low energy consumption, and an appropriate structure. [Means for solving the problem]

[0005] The technical solutions used in the present invention are as follows:

[0006] A multi-layer serial axial flow slurry dispersing device, comprising: a housing with a plurality of layers of dispersing rotors and dispersing stators; the dispersing rotors and dispersing stators are arranged in an axially stacked arrangement; the dispersing rotor is fitted onto the main shaft; the dispersing stator is connected to the housing; the dispersing rotor and the dispersing stator are rotatably engaged; the dispersing rotor is thick on the inside and thin on the outside, comprising a rotor connecting ring with an inner thick part and a rotor dispersing ring with an outer thin part; a stator ring receiving groove is formed on the outside of the rotor connecting ring above or below the rotor dispersing ring; and the rotor dispersing ring is fitted onto the main shaft; the dispersing rotor is rotatably engaged with the main shaft; the dispersing rotor is thick on the inside and thin on the outside, comprising a rotor connecting ring with an inner thick part and a rotor dispersing ring with an outer thin part; The ring has a plurality of through-holes for the rotor, the distribution stator is thick on the outside and thin on the inside, and includes a stator connecting ring with an outer thick portion and a stator distribution ring with an inner thin portion, and a rotor ring receiving groove is formed on the inside of the stator connecting ring below or above the stator distribution ring, and the stator distribution ring has a plurality of through-holes for the stator, the rotor distribution ring and the stator distribution ring are arranged at a distance from each other, the rotor distribution ring fits into the rotor ring receiving groove, and the stator distribution ring fits into the stator ring receiving groove.

[0007] As a further improvement of the above technical solution, the distribution rotors or distribution stators are arranged in contact with each other in layers, the distribution rotor of each layer is arranged inside the distribution stator of the corresponding layer, the thickness of the stator distribution ring is smaller than the depth of the stator ring receiving groove, and the thickness of the rotor distribution ring is smaller than the depth of the rotor ring receiving groove.

[0008] The radial width of the rotor distribution ring and the radial width of the stator distribution ring are the same, the thickness of the rotor distribution ring is approximately 1 / 10 to 9 / 10 of the thickness of the rotor connecting ring, and the thickness of the stator distribution ring is approximately 1 / 10 to 9 / 10 of the thickness of the stator connecting ring.

[0009] The rotor through holes and the stator through holes are elongated holes, and all of the rotor through holes and / or all of the stator through holes are arranged concentrically or eccentrically.

[0010] The angle α between the center extension lines of the arc portions on both sides of the rotor through hole and a radial line passing through the center of the outer arc portion ranges from 0 to 90 degrees, and the angle β between the center extension lines of the arc portions on both sides of the stator through hole and a radial line passing through the center of the outer arc portion ranges from 0 to 90 degrees.

[0011] The rotor and / or stator through-holes may be provided as straight holes or angled holes.

[0012] A support ring is provided on the inner wall surface of the housing, and the bottommost dispersion stator abuts against the support ring.

[0013] The housing has a liquid inlet chamber at the bottom and a liquid outlet chamber at the top, and a liquid inlet in the wall of the housing is provided which communicates with the liquid inlet chamber.

[0014] A powder-liquid mixing apparatus uses the above-mentioned multi-layer serial axial flow slurry disperser, and has a mixing sleeve connected to the upper surface of the housing, a mixing chamber provided within the mixing sleeve, the mixing chamber communicating with the liquid outlet chamber, the mixing sleeve provided with a mixture outlet communicating with the mixing chamber, a mixing impeller provided within the mixing chamber of the mixing sleeve, the mixing impeller fitted onto the main shaft, a powder supply tube connected to the top of the mixing sleeve, a powder supply chamber provided within the powder supply tube, and the powder supply chamber communicating with the mixing chamber.

[0015] As a further improvement of the above technical solution, a vertical raised ring is provided on the bottom surface of the powder supply tube, and a plurality of discharge holes are drilled on the wall surface of the vertical raised ring, and the vertical raised ring is fitted onto the outside of the mixing impeller. [Effects of the Invention]

[0016] The through-holes of the dispersion rotor and dispersion stator of the present invention are axially penetrated, and in the dispersion structure, the liquid slurry only needs to flow through the axial flow path from bottom to top without having to turn around, which shortens the slurry formation process, reduces flow resistance, allows smooth flow, reduces flow loss, increases efficiency, and reduces energy consumption. When the slurry flows axially through the through-holes from bottom to top, the flow rate and speed at each part of the through-hole are consistent, which ensures a uniform dispersion effect in the dispersion region, making the dispersion more uniform and improving the dispersion effect, and also contributing to improving the utilization rate of energy consumption. The dispersion rotor and dispersion stator have a structure in which the connecting ring is thick and the dispersion ring is thin. On the one hand, the thick connecting ring increases the connection strength, making the connection more stable and reliable, and the thin dispersion ring contributes to reducing the flow resistance of the liquid slurry, improving efficiency and reducing energy consumption. On the other hand, the connecting ring of the dispersion rotor and dispersion stator is thick and the dispersion ring is thin, and a receiving groove to accommodate the dispersion ring is directly formed on the outside or inside of the connecting ring of the dispersion rotor and dispersion stator. Therefore, the dispersion rotor or dispersion stator is arranged in contact with the thick connecting ring layer by layer, and the dispersion rotor of each layer is arranged inside the dispersion stator of the corresponding layer. This eliminates the need for additional spacers to separate the receiving grooves, thereby saving the use of spacers, making the structure simpler and more compact, and saving component costs. Furthermore, the dispersion rotor or dispersion stator is arranged in contact with the layer by layer, which also contributes to improving the support strength and making the connection more stable and reliable.

[0017] The radial width of the rotor distribution ring of each layer of the distribution rotor of the present invention is the same as the radial width of the stator distribution ring of each layer of the distribution stator, maximizing the utilization of the distribution area between the stator and rotor and maximizing the utilization of energy consumption.

[0018] The distribution stator of the present invention abuts against the support ring, and the support ring positions and supports the distribution stator, improving the supporting strength.

[0019] The vertical raised ring of the present invention is fitted onto the outside of the mixing impeller, and can trap the liquid slurry and powder inside, and after being stirred and mixed by the rotating mixing impeller, they can flow out through the discharge hole, resulting in more thorough mixing and a better mixing effect. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a schematic diagram of the present invention. [Figure 2] FIG. 2 is a perspective cross-sectional view of the dispersion structure of the present invention. [Figure 3] FIG. 3 is a schematic diagram showing a configuration in which the through holes are concentric. [Figure 4] FIG. 4 is a schematic diagram showing the configuration of an eccentric through hole. [Figure 5] FIG. 5 is a schematic cross-sectional view of an engagement in which the through-hole is a straight hole. [Figure 6] FIG. 6 is a schematic cross-sectional view of an engagement in which the through-hole is an inclined hole. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

[0022] As shown in Figure 1, the housing 1 of the present invention contains multiple layers of dispersion rotors 3 and dispersion stators 4, which are stacked in the axial direction and rotatably engaged to form a dispersion structure. The dispersion rotor 3 is fitted onto the main shaft 2, and the dispersion stator 4 is fixedly connected to the housing 1. The lower end of the main shaft 2 extends from the bottom of the housing 1 and is connected to a drive mechanism 10, which drives the main shaft 2 to rotate the multiple layers of dispersion rotors 3 at high speed. Within the housing 1, a liquid inlet chamber 11 is located below the dispersion structure, and a liquid outlet chamber 12 is located above the dispersion structure. A liquid inlet 13 communicating with the liquid inlet chamber 11 is provided on the wall of the housing 1. A mixing sleeve 5 is connected to the upper surface of the housing 1, and a mixing chamber 51 is provided within the mixing sleeve 5. The mixing chamber 51 communicates with the liquid outlet chamber 12, and a mixture outlet 52 of the mixing chamber 51 communicates with the top of the mixing sleeve 5. A mixing impeller 6 is provided within the mixing chamber 51 of the mixing sleeve 5, and the mixing impeller 6 is fitted onto the main shaft 2 and driven to rotate at high speed by the main shaft 2. A powder supply tube 7 is connected to the top of the mixing sleeve 5, and a powder supply chamber 71 is provided within the powder supply tube 7, and the powder supply chamber 71 communicates with the mixing chamber 51.

[0023] As shown in Figures 1 and 2, a support ring 14 is provided on the inner wall surface of the housing 1 so as to protrude radially inward, and the bottommost dispersion stator 4 abuts against the support ring 14, which positions and supports the dispersion stator 4 and improves support strength.

[0024] The dispersion rotor 3 and dispersion stator 4 both have a disk-like structure.

[0025] The distribution rotor 3 is a disk that is thick on the inside and thin on the outside, and includes a rotor connecting ring 31 with a thick inner portion and a rotor distribution ring 32 with a thin outer portion, and the rotor distribution ring 32 has multiple rotor through holes 33 drilled through it in the circumferential direction. The thickness of the rotor distribution ring 32 is approximately 1 / 10 to 9 / 10 of the thickness of the rotor connecting ring 31, and the rotor distribution ring 32 is formed by extending radially outward from the upper half of the outer edge of the rotor connecting ring 31, and a stator ring receiving groove 34 is formed on the outside of the rotor connecting ring 31 below the rotor distribution ring 32.

[0026] The distribution stator 4 is a disk that is thick on the inside and thin on the outside, and includes a stator connecting ring 41 with a thick outer portion and a stator distribution ring 42 with a thin inner portion, and the stator distribution ring 42 has multiple stator through-holes 43 drilled through it in the circumferential direction. The thickness of the stator distribution ring 42 is approximately 1 / 10 to 9 / 10 of the thickness of the stator connecting ring 41, and the stator distribution ring 42 is formed by extending radially inward from the lower half of the inner edge of the stator connecting ring 41, and a rotor ring receiving groove 44 is formed inside the stator connecting ring 41 above the stator distribution ring 42. The thickness of the stator distribution ring 42 is smaller than the depth of the stator ring receiving groove 34, and the thickness of the rotor distribution ring 32 is greater than the depth of the rotor ring receiving groove 44, and the rotor distribution ring 32 and the stator distribution ring 42 are arranged at a distance from each other, with the rotor distribution ring 32 fitting into the rotor ring receiving groove 44 and the stator distribution ring 42 fitting into the stator ring receiving groove 34. The radial width of the rotor distribution ring 32 of each layer of distribution rotor 3 and the radial width of the stator distribution ring 42 of each layer of distribution stator 4 are the same, maximizing the utilization of the distribution area between the stator and rotor and maximizing the utilization of energy consumption.

[0027] As shown in Figure 1, the through-holes of the dispersion rotor 3 and dispersion stator 4 are axially penetrated, and the liquid slurry flows and disperses through the through-holes of the dispersion rotor 3 and dispersion stator 4 of each layer in the axial direction. In this dispersion structure, the liquid slurry only needs to pass through the axial flow path from bottom to top and does not need to turn around, which shortens the slurry formation process, reduces flow resistance, flows smoothly, has small flow loss, is efficient, and consumes little energy. Furthermore, when the slurry flows axially from bottom to top through the through-holes, the flow rate and speed at each part of the through-hole are consistent, which ensures a uniform dispersion effect in the dispersion area, making the dispersion more uniform and improving the dispersion effect, and also contributing to improving the utilization rate of energy consumption.

[0028] The dispersion rotors 3 and stators 4 have a structure with thick connecting rings and thin dispersion rings. On the one hand, the thick connecting rings increase the connection strength, making the connection more stable and reliable, and the thin dispersion rings contribute to reducing the flow resistance of the liquid slurry, improving efficiency and reducing energy consumption. On the other hand, the connecting rings of the dispersion rotors 3 and stators 4 are thick and thin, and receiving grooves to accommodate the dispersion rings are directly formed on the outside or inside of the connecting rings of the dispersion rotors 3 and stators 4. Therefore, the dispersion rotors 3 or dispersion stators 4 are arranged in contact with each other layer by layer through the thick connecting rings, and the dispersion rotors 3 of each layer are arranged inside the corresponding dispersion stators 4. This eliminates the need for additional spacers to separate the receiving grooves, thereby saving the use of spacers, making the structure simpler and more compact, and saving component costs. Furthermore, the dispersion rotors 3 or dispersion stators 4 are arranged in contact with each other layer, which also contributes to improving support strength and making the connection more stable and reliable.

[0029] As shown in Figures 2 to 4, the rotor through-hole 33 of the distribution rotor 3 and the stator through-hole 43 of the distribution stator 4 are elongated holes, which make maximum use of the radial area of ​​the rotor distribution ring 32 and the stator distribution ring 42, increasing the flow area, improving the distribution effect, and reducing flow resistance.

[0030] As shown in Figure 3, all of the rotor through-holes 33 of the dispersion rotor 3 and all of the stator through-holes 43 of the dispersion stator 4 are arranged concentrically. This arrangement increases the residence time of the slurry and promotes dispersion. The rotor through-holes 33 and stator through-holes 43 are distributed in a radially divergent manner, and the central extension lines of the arc portions on both sides of the rotor through-holes 33 or stator through-holes 43 pass through the center of the dispersion rotor 3 or dispersion stator 4.

[0031] As shown in Figure 4, all rotor through-holes 33 of the distributed rotor 3 and all stator through-holes 43 of the distributed stator 4 may be eccentrically arranged, with the eccentric direction opposite the rotational direction of the distributed rotor 3. This eccentric arrangement can improve centripetal force and transfer flow, contributing to improved efficiency. The center extension lines of the arc sections on both sides of the rotor through-holes 33 or stator through-holes 43 do not pass through the center of the distributed rotor 3 or distributed stator 4. The angle α between the center extension lines of the arc sections on both sides of the rotor through-holes 33 and a radial line passing through the center of the outer arc section ranges from 0 to 90 degrees. The angle β between the center extension lines of the arc sections on both sides of the stator through-holes 43 and a radial line passing through the center of the outer arc section ranges from 0 to 90 degrees.

[0032] The rotor through-holes 33 of the dispersion rotor 3 and the stator through-holes 43 of the dispersion stator 4 may be arranged concentrically or eccentrically, or one may be arranged concentrically and the other may be arranged eccentrically.

[0033] As shown in FIG. 5, the rotor through-holes 33 of the dispersion rotor 3 and the stator through-holes 43 of the dispersion stator 4 may be straight holes, which reduces the flow resistance.

[0034] As shown in FIG. 6, the rotor through-hole 33 of the dispersion rotor 3 and the stator through-hole 43 of the dispersion stator 4 may be inclined holes, with the rotor through-hole 33 and the stator through-hole 43 inclined in opposite directions, so that the cross section of the two is V-shaped, which improves the shear dispersion effect.

[0035] The rotor through-hole 33 and the stator through-hole 43 may be provided as straight holes or inclined holes at the same time, or one may be provided as a straight hole and the other as an inclined hole.

[0036] As shown in Figure 1, a vertical raised ring 72 is provided on the bottom of the powder supply tube 7, extending vertically downward in the axial direction, and a number of discharge holes 73 are drilled on the wall of the vertical raised ring 72. The vertical raised ring 72 is fitted onto the outside of the mixing impeller 6, and prevents the liquid slurry and powder from reaching the inside, allowing them to flow out through the discharge holes 73 after being stirred and mixed by the rotating mixing impeller 6, resulting in more thorough mixing and a better mixing effect.

[0037] When the present invention is actually used, the driving mechanism 10 drives the main shaft 2 to rotate the multi-layer dispersion rotor 3 and the mixing impeller 6 at high speed. The liquid slurry enters the liquid inlet chamber 11 from the liquid inlet 13, flows axially through the multi-layer dispersion rotor 3 and the dispersion stator 4 in order to be dispersed, and then enters the liquid outlet chamber 12, and then flows from the liquid outlet chamber 12 to the mixing chamber 51. The powder is transferred from the powder supply tube 7 to the mixing chamber 51, and the liquid slurry and powder are uniformly mixed by the mixing impeller 6 in the mixing chamber 51 and then output from the mixture outlet 52.

[0038] The above description is not intended to limit the present invention, but to interpret the present invention, and the present invention can be modified in any manner without violating the spirit of the present invention. For example, in another embodiment, the rotor distribution ring 32 of the distribution rotor 3 can be provided on the outer lower half of the rotor connecting ring 31, and the corresponding stator distribution ring 42 of the distribution stator 4 can be provided on the inner upper half of the stator connecting ring 41. [Explanation of symbols]

[0039] 1. Housing 11. Liquid inlet chamber 12. Liquid outlet chamber 13, liquid inlet 14. Support ring 2. Main shaft 3. Dispersion rotor 31. Rotor connecting ring 32. Rotor distribution ring 33. Rotor through hole 34. Stator ring receiving groove 4. Dispersion stator 41. Stator connecting ring 42, stator distribution ring 43, stator through hole 44. Rotor ring receiving groove 5. Mixed sleeve 51. Mixing chamber 52, mixture outlet 6. Mixing impeller 7. Powder supply tube 71. Powder supply chamber 72. Vertical raised ring 73, discharge hole 10. Drive mechanism

Claims

1. A multi-layer serial axial flow slurry dispersing device includes a housing (1), in which a plurality of layers of dispersion rotors (3) and dispersion stators (4) are provided, the dispersion rotors (3) and the dispersion stators (4) are arranged in an axially stacked manner, the dispersion rotors (3) are fitted onto the main shaft (2), the dispersion stators (4) are connected to the housing (1), and the dispersion rotors (3) and the dispersion stators (4) are rotatably engaged with each other, the dispersion rotors (3) are thick on the inside and thin on the outside, and include a rotor connecting ring (31) with an inner thick portion and a rotor distribution ring (32) with an outer thin portion, and a stator ring receiving groove (34) is formed on the outside of the rotor connecting ring (31) above or below the rotor distribution ring (32), and the rotor distribution ring (32) is fitted with a stator ring receiving groove (34). a plurality of through-holes (33) for the rotor; the dispersion stator (4) is thick on the outside and thin on the inside, and includes a stator connecting ring (41) as an outer thick portion and a stator distribution ring (42) as an inner thin portion; a rotor ring receiving groove (44) is formed inside the stator connecting ring (41) below or above the stator distribution ring (42); the stator distribution ring (42) is formed with a plurality of through-holes (43), the rotor distribution ring (32) and the stator distribution ring (42) are arranged at an interval, the rotor distribution ring (32) fits into the rotor ring receiving groove (44), and the stator distribution ring (42) fits into the stator ring receiving groove (34).

2. 2. The multi-layer serial axial flow slurry dispersing device according to claim 1, wherein the dispersing rotors (3) or the dispersing stators (4) are arranged in contact with each other in layers, the dispersing rotors (3) of each layer are arranged inside the dispersing stators (4) of the corresponding layer, the thickness of the stator dispersing rings (42) is smaller than the depth of the stator ring receiving grooves (34), and the thickness of the rotor dispersing rings (32) is smaller than the depth of the rotor ring receiving grooves (44).

3. 2. The multi-layer serial axial flow slurry distribution device according to claim 1, wherein the radial width of the rotor distribution ring (32) and the radial width of the stator distribution ring (42) are the same, the thickness of the rotor distribution ring (32) is about 1 / 10 to 9 / 10 of the thickness of the rotor connecting ring (31), and the thickness of the stator distribution ring (42) is about 1 / 10 to 9 / 10 of the thickness of the stator connecting ring (41).

4. 2. The multi-layer serial axial flow slurry dispersing apparatus according to claim 1, wherein the rotor through-holes (33) and the stator through-holes (43) are elongated holes, and all of the rotor through-holes (33) and / or all of the stator through-holes (43) are arranged concentrically or eccentrically.

5. 5. The multi-layer serial axial flow slurry dispersing apparatus according to claim 4, wherein the angle α between the central extension lines of the arc portions on both sides of the rotor through-hole (33) and a radial line passing through the center of the outer arc portion thereof is in the range of 0 to 90 degrees, and the angle β between the central extension lines of the arc portions on both sides of the stator through-hole (43) and a radial line passing through the center of the outer arc portion thereof is in the range of 0 to 90 degrees.

6. 2. The multi-layer serial axial flow slurry dispersing apparatus according to claim 1, wherein the rotor through-holes (33) and / or the stator through-holes (43) are provided as straight holes or inclined holes.

7. 2. The multi-layer serial axial flow slurry dispersing apparatus according to claim 1, characterized in that a support ring (14) is provided on the inner wall surface of the housing (1), and the bottommost dispersing stator (4) abuts against the support ring (14).

8. 2. The multi-layer serial axial flow slurry disperser according to claim 1, characterized in that the housing (1) has a liquid inlet chamber (11) at the bottom and a liquid outlet chamber (12) at the top, and a liquid inlet (13) communicating with the liquid inlet chamber (11) is provided on the wall of the housing (1).

9. 1. A powder-liquid mixer using the multi-layer serial axial-flow slurry disperser according to claim 1, comprising: a mixing sleeve (5) connected to an upper surface of a housing (1); a mixing chamber (51) provided within the mixing sleeve (5); the mixing chamber (51) communicating with a liquid outlet chamber (12); a mixture outlet (52) communicating with the mixing chamber (51); a mixing impeller (6) provided within the mixing chamber (51) of the mixing sleeve (5); the mixing impeller (6) fitted onto the main shaft (2); a powder supply tube (7) connected to an upper portion of the mixing sleeve (5); a powder supply chamber (71) provided within the powder supply tube (7); and the powder supply chamber (71) communicating with the mixing chamber (51).

10. 10. The powder-liquid mixing apparatus according to claim 9, wherein a vertically raised ring (72) is provided on the bottom surface of the powder supply tube (7), a plurality of discharge holes (73) are formed in the wall surface of the vertically raised ring (72), and the vertically raised ring (72) is fitted onto the outside of the mixing impeller (6).

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