CN116020302A - Shearing and dispersing device and continuous pulping equipment - Google Patents
Shearing and dispersing device and continuous pulping equipment Download PDFInfo
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- CN116020302A CN116020302A CN202211576263.8A CN202211576263A CN116020302A CN 116020302 A CN116020302 A CN 116020302A CN 202211576263 A CN202211576263 A CN 202211576263A CN 116020302 A CN116020302 A CN 116020302A
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- 238000010008 shearing Methods 0.000 title claims abstract description 28
- 238000004537 pulping Methods 0.000 title claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 64
- 238000001125 extrusion Methods 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 10
- 239000006185 dispersion Substances 0.000 abstract description 9
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a shearing and dispersing device and continuous pulping equipment, wherein the shearing and dispersing device comprises: a cylinder, a stator unit and a rotor unit; the stator unit and the rotor unit are alternately arranged in the cylinder body, the rotor unit is fixedly sleeved on the shaft core, the stator unit is axially provided with a plurality of first through holes along the stator unit, the rotor unit is axially provided with a plurality of second through holes along the rotor unit, the rotor unit is driven to rotate when the driving piece drives the shaft core to rotate, the plurality of first through holes and the plurality of second through holes are communicated in a staggered manner, the rotor unit rotates relative to the stator unit, a larger shearing force is formed at the communicating position of the first through holes and the second through holes, and slurry is sheared and dispersed in the process of flowing from the first through holes to the second through holes so as to improve the dispersion degree of the slurry; the stator units and the rotor units are alternately arranged, the shaft core drives the rotor units to rotate, slurry is sheared and simultaneously flows in a pushing mode, the purpose of rapid and continuous pulping is achieved, and pulping efficiency is improved.
Description
Technical Field
The invention relates to the technical field of slurry dispersing equipment, in particular to a shearing dispersing device and continuous pulping equipment.
Background
The existing double-screw extruder is characterized in that all functional elements are all connected in series on two parallel screws, and all functions of powder conveying, powder mixing, kneading, diluting and dispersing are included, but the requirement of the dispersing function on the rotating speed is inconsistent with the requirement of other functions on the rotating speed, and the difference between the dispersing function and the rotating speed is extremely large, so that the dispersing effect cannot meet the use requirement.
The existing method for solving the defect of the dispersing capability of the double screw in the market is to add a buffer tank at the rear end of the double screw and to disperse slurry by using high-speed stirring shafts and low-speed stirring shafts of the buffer tank, but the method for solving the problem sacrifices the natural advantage of continuous production of the double screw extruder, the double screw is continuous production, the productivity is liberated, but the rear buffer tank can only be output to the rear process after being stirred in batches, the continuous slurry preparation operation can not be realized, and the productivity is reduced.
Disclosure of Invention
Therefore, the invention aims to overcome the defects that the continuous pulping operation cannot be realized, the pulping capacity is small and the efficiency is low in the prior art, and provides the shearing and dispersing device and the continuous pulping equipment.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a shear dispersing device comprising: a cylinder, a stator unit and a rotor unit; the cylinder is connected to the discharge end of the screw extrusion device, and a shaft core driven to rotate by a driving piece is arranged in the cylinder; the stator units are sleeved on the shaft core, are fixedly connected with the cylinder body, and are provided with first through holes penetrating through the stator units along the axial direction of the stator units; the rotor units are fixedly sleeved on the shaft core, the stator units and the stator units are alternately arranged along the axial direction of the shaft core, and the rotor units are provided with second through holes penetrating through the rotor units along the axial direction of the rotor units; the rotor unit rotates along with the shaft core, so that a plurality of first through holes and a plurality of second through holes are staggered and communicated to form a first channel for shearing and dispersing slurry.
According to some embodiments of the invention, the stator unit comprises a stator outer ring, a stator inner ring, and a plurality of stator ribs extending radially therefrom to the stator inner ring; the stator outer ring is fixedly connected with the inner wall of the cylinder body, a plurality of stator ribs are uniformly distributed along the circumferential direction of the stator outer ring, and the first through hole is formed by encircling at least two adjacent stator ribs, the stator outer ring and the stator inner ring;
the rotor unit comprises a rotor inner ring, a rotor outer ring and a plurality of rotor ribs which extend from the rotor inner ring to the rotor outer ring along the radial direction of the rotor inner ring, the rotor inner ring is fixedly sleeved on the shaft core, the rotor ribs are uniformly distributed along the circumferential direction of the rotor inner ring, and the second through holes are formed by surrounding at least two adjacent rotor ribs, the rotor inner ring and the rotor outer ring.
According to some embodiments of the invention, the stator unit and the rotor unit are arranged opposite, in the axial direction of the mandrel, the thickness of the stator outer ring is greater than the thickness of the stator inner ring and the stator ribs, and the thickness of the rotor inner ring is greater than the thickness of the rotor outer ring and the rotor ribs;
a first axial channel is formed between the inner wall of the stator outer ring and the outer wall of the rotor outer ring, a second axial channel is formed between the outer wall of the rotor inner ring and the inner wall of the stator inner ring, and the flow directions of the first axial channel and the second axial channel are consistent with the axial direction of the shaft core;
radial channels are formed between the side walls of the rotor ribs and the side walls of the adjacent stator ribs, and the flow directions of the radial channels are mutually perpendicular to the axial direction of the shaft core;
the first axial channel, the radial channel and the second axial channel are sequentially communicated to form a second channel for shearing and dispersing materials; the second axial channels are communicated with the two corresponding radial channels on two sides of the stator rib so that a plurality of second channels are communicated in sequence.
According to some embodiments of the invention, the radial channels are adjustable in width and have a width adjustment range of 1-4mm.
According to some embodiments of the invention, the rotor comprises a radial channel, wherein the radial channel is provided with a radial opening, and the radial channel is provided with a radial opening.
According to some embodiments of the invention, the device further comprises a fixing piece, wherein the fixing piece comprises a gasket sleeved on the shaft core and abutted with the rotor inner ring positioned at the front end opening of the cylinder, and a fastener coupled to the shaft core adapted to secure the shim to the rotor inner ring.
According to some embodiments of the invention, a limiting groove is formed in the side face, facing the front end of the cylinder, of the rotor inner ring, and the gasket abuts against the groove bottom of the limiting groove.
According to some embodiments of the invention, a first positioning key is arranged on the cylinder, and a first positioning groove which can be matched with the positioning key is arranged on the outer wall of the stator outer ring; the shaft core is provided with at least one second positioning key, and the inner wall of the rotor inner ring is provided with a second positioning groove matched with the second positioning key.
According to some embodiments of the invention, a medium heat exchange channel is arranged on the wall of the cylinder, and the medium heat exchange channel is provided with a medium inlet and a medium outlet.
The invention provides continuous pulping equipment which is characterized by comprising a screw extrusion device and the shearing and dispersing device, wherein the screw extrusion device comprises an extrusion cylinder body and screw extrusion elements arranged in the extrusion cylinder body, and the cylinder body is in butt joint with a discharge end of the extrusion cylinder body.
The technical scheme of the invention has the following advantages:
1. according to the shearing and dispersing device provided by the invention, the stator unit and the rotor unit are alternately arranged in the cylinder, the rotor unit is fixedly sleeved on the shaft core, the stator unit is provided with a plurality of first through holes along the axial direction of the stator unit, the rotor unit is provided with a plurality of second through holes along the axial direction of the rotor unit, the rotor unit is driven to rotate when the driving member drives the shaft core to rotate, so that the plurality of first through holes and the plurality of second through holes are in staggered intercommunication, the rotor unit rotates relative to the stator unit, a larger shearing force is formed at the communication position of the first through holes and the second through holes, and slurry is sheared and dispersed in the process of flowing from the first through holes to the second through holes, so that the dispersion degree of the slurry is improved; the stator units and the rotor units are alternately arranged, the shaft core drives the rotor units to rotate, so that a first channel formed by the first through hole and the second through hole is always kept in a communicated state, slurry is sheared, the flow of the slurry is propelled, the purposes of rapid and continuous pulping are achieved, and the pulping efficiency is improved.
2. According to the shearing and dispersing device provided by the invention, the radial channel between the rotor unit and the stator unit is regulated by the regulating gasket according to the characteristics of the fed slurry, so that the universality of the shearing and dispersing device is improved.
3. The continuous pulping equipment provided by the invention is communicated with the shearing and dispersing device, so that the purpose of continuous pulping is realized, the pulping efficiency is improved, and the pulping yield is increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a shear dispersing device provided in some embodiments of the present invention;
FIG. 2 is a half cross-sectional view of a shear dispersing device provided in some embodiments of the present invention;
FIG. 3 is a partial view at A in FIG. 2;
FIG. 4 is a semi-sectional view at another angle of a shear dispersing device provided in some embodiments of the present invention;
FIG. 5 is a partial view at B in FIG. 4;
FIG. 6 is a view of a stator unit construction of a shear dispersing device provided in some embodiments of the present invention;
fig. 7 is an assembled view of a rotor unit and a shaft core of a shear dispersing device provided in some embodiments of the present invention.
Reference numerals illustrate: 1. a cylinder; 2. a stator unit; 3. a rotor unit; 4. a shaft core; 5. a fixing member; 6. a first axial passage; 7. a radial passage; 8. a second axial passage; 11. a first positioning key; 21. a stator outer ring; 211. a first positioning groove; 22. stator ribs; 221. a first through hole; 23. a stator inner ring; 31. a rotor inner ring; 311. a second positioning groove; 32. rotor ribs; 321. a second through hole; 33. a rotor outer ring; 41. a second positioning key; 51. a gasket; 52. a fastener.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1 to 7, a shear dispersing device according to the present invention includes: a cylinder 1, a stator unit 2 and a rotor unit 3; the cylinder body 1 is connected to the discharge end of the screw extrusion device, and a shaft core 4 driven to rotate by a driving piece is arranged in the cylinder body 1; the number of the stator units 2 is multiple, the stator units 2 are sleeved on the shaft core 4, the stator units 2 are fixedly connected with the cylinder body 1, and the stator units 2 are provided with first through holes 221 penetrating through the stator units 2 along the axial direction of the stator units; the number of the rotor units 3 is multiple, the rotor units 3 are fixedly sleeved on the shaft core 4, the stator units 2 and the stator units 2 are alternately arranged along the axial direction of the shaft core 4, and the rotor units 3 are provided with second through holes 321 penetrating through the rotor units 3 along the axial direction of the rotor units; the rotor unit 3 rotates with the shaft core 4, so that the plurality of first through holes 221 and the plurality of second through holes 321 are staggered and communicated to form a first channel for shearing and dispersing slurry.
Specifically, the stator unit 2 and the rotor unit 3 are alternately installed in the cylinder 1, the rotor unit 3 is fixedly sleeved on the shaft core 4, the stator unit 2 is provided with a plurality of first through holes 221 along the axial direction of the stator unit 2, the rotor unit 3 is provided with a plurality of second through holes 321 along the axial direction of the rotor unit 3, when the driving member drives the shaft core 4 to rotate, the rotor unit 3 rotates relative to the stator unit 2, the communicating positions of the first through holes 221 and the second through holes 321 form larger shearing force, and in the process of flowing the slurry from the first through holes 221 to the second through holes 321, the slurry is sheared and dispersed to improve the dispersion degree of the slurry; the stator units 2 and the rotor units 3 are alternately arranged, and the shaft core 4 drives the rotor units 3 to rotate, so that a first channel formed by the first through hole 221 and the second through hole 321 is always kept in a communicated state, slurry is sheared, and the slurry is pushed to flow, so that the purposes of rapid and continuous pulping are achieved, and the pulping efficiency is improved.
Referring to fig. 4 and 5, it can be understood that, when the number of the first through holes 221 is identical to the number of the second through holes 321, the projections of the first through holes 221 and the projections of the second through holes 321 are in a state of being overlapped with each other during the rotation of the rotor unit 3, so that the slurry flows, and when the number of the first through holes 221 is not identical to the number of the second through holes 321, the projections of at least one first through hole 221 and one second through hole 321 are overlapped with each other during the rotation of the rotor unit 3. The specific number of the first and second through holes 221 and 321 is not a limitation of the present invention.
Specifically, in order to enable the slurry with high solid content to be sufficiently sheared and dispersed, the first through hole 221 and the second through hole 321 are set to be fan-shaped, and during the rotation process of the rotor unit 3, the radius of the first through hole 221 or the second through hole 321 with the fan-shaped cross section shears the slurry, so that the shearing efficiency of the slurry is improved. The cross-sectional shapes of the first through hole 221 and the second through hole 321 are not limiting to the present invention, and may be provided as a square or triangle.
Referring to fig. 3 and 5, in some embodiments of the present invention, the stator unit 2 includes a stator outer ring 21, a stator inner ring 23, and a plurality of stator ribs 22 extending from the stator outer ring 21 to the stator inner ring 23 along a radial direction thereof, the stator outer ring 21 is fixedly connected to the inner wall of the cylinder 1, the plurality of stator ribs 22 are uniformly distributed along a circumferential direction of the stator outer ring 21, and the first through hole 221 is formed by at least two adjacent stator ribs 22, the stator outer ring 21, and the stator inner ring 23. In the axial direction of the spindle 4, the stator inner ring 23 and the stator ribs 22 have the same thickness and are each smaller than the thickness of the stator outer ring 21.
Referring to fig. 6, specifically, the cylinder 1 is provided with at least one first positioning key 11, and the outer peripheral wall of the stator outer ring 21 is provided with a first positioning groove 211 matched with the first positioning key 11; the number of the first positioning grooves 211 and the second positioning grooves 311 may be plural, and the specific number of the first positioning grooves 211 and the second positioning grooves 311 is not a limitation of the present invention.
The stator unit 2 is fixed on the cylinder 1 in a key slot matching mode, specifically, at least one first positioning key 11 is arranged on the cylinder 1, and at least two first positioning grooves 211 which can be matched with the first positioning keys 11 are arranged on the rotor outer ring 33; the first positioning key 11 can be mutually matched with any one of the first positioning grooves 211, so that the fitting degree of the stator unit 2 can be improved, and the installation difficulty can be reduced. The first through holes 221 on each stator unit 2 may be located on the same axis or the first through holes 221 on each stator unit 2 may be distributed in a staggered manner by adjusting the installation position between the first positioning key 11 and the two first positioning grooves 211 to change the dispersion performance of the shear dispersing device.
The rotor unit 3 includes a rotor inner ring 31, a rotor outer ring 33, and a plurality of rotor ribs 32 extending from the rotor inner ring 31 to the rotor outer ring 33 along a radial direction thereof, wherein the rotor inner ring 31 is fixedly sleeved on the shaft core 4, the plurality of rotor ribs 32 are uniformly distributed along a circumferential direction of the rotor inner ring 31, and the second through hole 321 is formed by at least two adjacent rotor ribs 32, the rotor inner ring 31 and the rotor outer ring 33. In the axial direction of the spindle 4, the rotor outer ring 33 and the rotor ribs 32 have the same thickness and are each smaller than the thickness of the rotor inner ring 31.
Referring to fig. 7, the rotor unit 3 is fixed to the shaft core 4 in a key groove matching manner, specifically, at least one second positioning key 41 is provided on the shaft core 4, and a second positioning groove 311 matching with the second positioning key 41 is provided on the inner wall of the rotor inner ring 31. The stator unit 2 is fixed on the cylinder body 1 in a key slot matching mode, the rotor unit 3 is fixed on the shaft core 4, the stator unit 2 and the rotor unit 3 are convenient to disassemble, the assembly time is shortened, and the assembly efficiency is improved.
Specifically, the plurality of rotor units 3 are sequentially sleeved on the shaft core 4 in the same direction, and the rotor ribs 32 and the stator ribs 22 are sequentially inserted into each other, that is, the stator ribs 22 extend between two adjacent rotor ribs 32, the rotor ribs 32 extend between two adjacent stator ribs 22, and when the rotor units 3 rotate, the rotor ribs 32 rotate relative to the stator ribs 22, so that a larger shearing force is formed between the rotor ribs 32 and the stator ribs 22. When the solid content of the slurry is high, the stator ribs 22 and the rotor ribs 32 shear and break up the slurry in the process of flowing the slurry through the first through hole 221 and the second through hole 321 at a high flow rate, so as to reduce the viscosity of the slurry. In the invention, the arrangement of the first through holes 221, the second through holes 321, the stator ribs 22 and the rotor ribs 32 is beneficial to improving the dispersion degree of the slurry with higher solid content and reducing the viscosity of the slurry.
Referring to fig. 2 to 5, in some embodiments of the present invention, the stator unit 2 and the rotor unit 3 are disposed opposite to each other, the rotor ribs 32 and the stator ribs 22 are sequentially spaced apart in the axial direction of the mandrel 4, a thickened portion of the rotor inner ring 31 is disposed corresponding to the stator inner ring 23, and a thickened portion of the stator outer ring 21 is disposed corresponding to the rotor outer ring 33. A first axial channel 6 is formed between the inner wall of the stator outer ring 21 and the outer wall of the rotor outer ring 33, a second axial channel 8 is formed between the outer wall of the rotor inner ring 31 and the inner wall of the stator inner ring 23, and the flow directions of the first axial channel 6 and the second axial channel 8 are consistent with the axial direction of the shaft core 4; radial channels 7 are formed between the opposite side walls of the rotor ribs 32 and the side walls of the stator ribs 22, and the flow direction of the radial channels 7 is mutually perpendicular to the axial direction of the shaft core 4; the first axial channel 6, the radial channel 7 and the second axial channel 8 are in communication in sequence to form a second channel for shearing and dispersing the material. The second axial channel 8 communicates with two radial channels 7 on opposite sides of the stator rib 22.
Specifically, after the slurry is extruded by the screw extrusion device, part of the slurry enters the first axial channel 6 between the outer peripheral wall of the rotor outer ring 33 and the inner wall of the stator outer ring 21 from the front port of the barrel 1, the shaft core 4 drives the rotor unit 3 to rotate, the slurry is sheared and dispersed in the first axial channel 6, flows backwards along the axial direction of the shaft core 4, the rotor ribs 32 block the slurry, so that the slurry flows in the radial direction, after entering the radial channel 7, part of the slurry flows into the first channel, part flows in the radial direction, flows backwards along the axial direction of the shaft core 4 after being sheared and dispersed in the radial channel 7, and enters the second axial channel 8 between the outer wall of the rotor inner ring 31 and the outer wall of the stator outer ring 21. The second channel formed by the communication of the first axial channel 6, the radial channel 7 and the second axial channel 8 is in a zigzag shape, so that the flowing distance of slurry is prolonged, the dispersing area is increased, the purpose of improving the dispersion degree of the slurry is achieved, and the dispersing efficiency is improved.
It will be appreciated that the lengths of extension of the stator ribs 22 and the rotor ribs 32 are identical, and that the greater the length of extension of the stator ribs 22 and the rotor ribs 32, the greater the shear forces in the radial channels 7 between the rotor ribs 32 and the stator ribs 22 during rotation of the rotor unit 3 with the shaft core 4, and the greater the resistance experienced by the rotor unit 3. The stronger the shear force, the higher the dispersion of the slurry; the greater the resistance, the lower the rotational speed of the rotor unit 3 and the lower the dispersion of the slurry. In some embodiments of the invention, the linear speed of the rotor unit 3 is controlled to be above 20m/s to ensure that a large shearing force can be generated so that the slurry is sufficiently dispersed.
The linear speed of the rotor unit 3 is adjustable, in practical application, the rotating speed of the rotor unit 3 can be adjusted according to the characteristics of components, viscosity and the like of the slurry so as to match the requirements of different slurries on shearing and dispersing efficiency, the rotating speed adjusting mode of the rotor unit 3 can be adjusted by changing the rotating speed of a driving piece through a PLC controller, and the rotating speed adjusting mode of the rotor unit 3 is not limited by the invention.
In some embodiments of the invention, the radial channels 7 are adjustable in width and have a width adjustment range of 1-4mm.
In some embodiments of the present invention, the rotor further comprises an adjusting washer, at least one side surface of the rotor inner ring 31 is provided with a receiving groove, the adjusting washer is sleeved on the shaft core 4 and is located in the receiving groove, and the adjusting washer is suitable for adjusting the width of the radial channel 7.
Specifically, the radial channel 7 is width-adjusted by arranging a containing groove on at least one side surface of the rotor, installing an adjusting washer in the containing groove and changing the thickness of the adjusting washer; in some embodiments of the invention, a plurality of adjusting washers can be optionally placed for adjustment, the total thickness of the plurality of adjusting washers is 1.2mm-4.2mm, when the groove depth of the accommodating groove is equal to 0.2mm, namely, the radial channel 7 is in the width adjusting range of 1mm-4mm. The groove depth of the receiving groove and the thickness of the adjusting washer are not limiting to the present invention, and thus the width adjusting range of the radial passage 7 is not limiting to the present invention.
It is understood that the accommodating groove may be disposed on one side of the rotor inner ring 31, or the accommodating grooves may be disposed on both sides of the rotor inner ring 31, and the number of the accommodating grooves is not limited by the present invention.
In some embodiments of the present invention, the fixing member 5 is further included, and the fixing member 5 includes a spacer 51 sleeved on the shaft core 4 and abutting against the rotor inner ring 31 at the front end of the cylinder 1, and a fastener 52 connected to the shaft core 4 and adapted to fix the spacer 51 on the rotor inner ring 31.
In some embodiments of the present invention, the side of the rotor inner ring 31 facing the front end of the cylinder 1 is provided with a limit groove, and the gasket 51 abuts against the bottom of the limit groove.
Specifically, the rotor unit 3 near the front end of the cylinder 1 is fixedly connected with the shaft core 4 through the fixing piece 5, and the rotor inner rings 31 of the plurality of axially distributed rotor units 3 are mutually abutted, extruded and fixed, so that the rotor units 3 are prevented from shaking when rotating. The fixing member 5 is specifically a gasket 51 sleeved on the shaft core 4 and abutting against the rotor unit 3 at the front end of the cylinder 1, the gasket 51 is placed in a limit groove of the rotor unit 3, and the gasket 51 is connected with the shaft core 4 through a fastener 52 to fix the gasket 51 on the rotor unit 3. The fastener 52 is embodied as a bolt. The gasket 51 is arranged to prevent the fastener 52 and the rotor unit 3 from wearing during the rotation of the shaft core 4, and the gasket 51 is used as a buffer member to prevent the rotor unit 3 from being worn, thereby reducing maintenance cost.
It will be appreciated that, according to the characteristics of the slurry, different numbers of stator units 2 and rotor units 3 may be selected for assembly, specifically, when the number of stator units 2 is n, the number of rotor units 3 is n+2, so as to ensure that the rotor units 3 are located at two ends of the shaft core 4, so as to facilitate fixing the rotor units 3, and in some embodiments of the present invention, the number of stator units 2 is 9, and the number of rotor units 3 is 11. The specific number of stator units 2 and rotor units 3 is not a limitation of the present invention.
It will be appreciated that the limit groove is provided on the side of the rotor inner ring 31 facing the front end of the cylinder 1, the groove bottom of the limit groove is in abutment with the gasket 51, and the groove depth of the limit groove is consistent with the thickness of the gasket 51. The gasket 51 may be made of a metal or other material, and the specific material of the gasket 51 is not limited to the present invention.
When the accommodating groove is formed on one side of the rotor inner ring 31, a limit groove is formed on the side surface, close to the front port, of the rotor inner ring 31 of the rotor unit 3 positioned at the front end of the cylinder body 1, and the accommodating groove is formed on the other side surface, away from the front port; when the two side surfaces of the rotor inner ring 31 are provided with the accommodating grooves, the limit groove of the rotor inner ring 31 of the rotor unit 3 positioned at the front end of the cylinder body 1 coincides with the accommodating groove.
In some embodiments of the invention, a medium heat exchange channel is arranged on the wall of the cylinder 1, and the medium heat exchange channel is provided with a medium inlet and a medium outlet.
Specifically, the medium heat exchange channels are spirally arranged around the peripheral wall of the cylinder 1. Specifically, the medium heat exchange channel is a refrigerant channel, and the refrigerant medium flows out from the medium outlet after entering from the medium inlet and passing through the refrigerant channel, and can take away a part of heat of the cylinder 1 so as to cool the slurry in the cylinder 1. Or the medium heat exchange channel is a heat medium channel, the heat medium enters from the medium inlet and flows out from the medium outlet after passing through the heat medium channel, and the heat medium can heat the slurry in the cylinder body 1.
In the shearing and dispersing device, on the one hand, a plurality of first through holes 221 are formed in the stator unit 2, a plurality of second through holes 321 are formed in the rotor unit 3, and the first through holes 221 and the second through holes 321 form a first channel; on the other hand, a second channel formed by communicating a first axial channel 6, a radial channel 7 and a second axial channel 8 is formed between the stator unit 2 and the rotor unit 3; when the high-solid-content slurry is sheared, the spindle 4 drives the rotor unit 3 to rotate, after the rotor ribs 32 on the rotor unit 3 shear the slurry, the scattered slurry passes through the rotor unit 3 from different second through holes 321 of the rotor unit 3, the penetrated slurry contacts the next stator unit 2, after the high-speed rotating slurry collides with the stationary stator unit 2, the stator ribs 22 shear and disperse the slurry again, then the slurry passes through the stator unit 2 again through the first through holes 221 of the stator unit 2, the penetrated slurry contacts the second rotor unit 3, the follow-up dispersing process is the same as the previous, namely, the slurry enters from the inlet of the device, the slurry can be scattered into different channels in the process of flowing out from the outlet of the device, the channels rotate at high speed, in the rotating process, the channels of the slurry are disconnected and communicated in a round-trip transition process, and the channel switching frequency is high, the high-speed dispersing effect is formed on the slurry, the slurry is reduced after the high-solid-content slurry is sheared and dispersed, the viscosity of the slurry is further reduced after the high-solid-content slurry is dispersed, the viscosity of the slurry is subjected to the effect of the narrow-phase dispersion, the viscosity of the slurry is further improved, the viscosity of the slurry is greatly sheared and the viscosity of the device is continuously produced, and the viscosity of the finished product is greatly sheared, and the viscosity is greatly improved.
The invention provides continuous pulping equipment which is characterized by comprising a screw extrusion device and the shearing and dispersing device, wherein the screw extrusion device comprises an extrusion cylinder 1 and screw extrusion elements arranged in the extrusion cylinder 1, and the cylinder 1 is in butt joint with a discharge end of the extrusion cylinder 1.
Specifically, the continuous pulping equipment provided by the invention is communicated with the shearing and dispersing device, so that the purpose of continuous pulping is realized, the pulping efficiency is improved, and the pulping yield is increased.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. A shear dispersing device, comprising:
the cylinder body (1) is connected to the discharge end of the screw extrusion device, and a shaft core (4) driven to rotate by a driving piece is arranged in the cylinder body (1);
the number of the stator units (2) is multiple, the stator units (2) are sleeved on the shaft core (4), the stator units (2) are fixedly connected with the cylinder body (1), and the stator units (2) are provided with first through holes (221) penetrating through the stator units (2) along the axial direction of the stator units;
the number of the rotor units (3) is multiple, the rotor units (3) are fixedly sleeved on the shaft core (4), the stator units (2) and the stator units (2) are alternately arranged along the axial direction of the shaft core (4), and the rotor units (3) are provided with second through holes (321) penetrating through the rotor units (3) along the axial direction of the rotor units;
the rotor unit (3) rotates along with the shaft core (4) so that a plurality of first through holes (221) and a plurality of second through holes (321) are staggered and communicated to form a first channel for shearing and dispersing slurry.
2. Shear dispersing device according to claim 1, wherein the stator unit (2) comprises a stator outer ring (21), a stator inner ring (23), and a plurality of stator ribs (22) extending from the stator outer ring (21) to the stator inner ring (23) in a radial direction thereof; the stator outer ring (21) is fixedly connected with the inner wall of the cylinder body (1), a plurality of stator ribs (22) are uniformly distributed along the circumferential direction of the stator outer ring (21), and the first through holes (221) are formed by at least encircling two adjacent stator ribs (22), the stator outer ring (21) and the stator inner ring (23);
the rotor unit (3) comprises a rotor inner ring (31), a rotor outer ring (33), and a plurality of rotor ribs (32) extending from the rotor inner ring (31) to the rotor outer ring (33) along the radial direction thereof; the rotor inner ring (31) is fixedly sleeved on the shaft core (4), a plurality of rotor ribs (32) are uniformly distributed along the circumference of the rotor inner ring (31), and the second through holes (321) are formed by at least two adjacent rotor ribs (32), the rotor inner ring (31) and the rotor outer ring (33) in a surrounding mode.
3. Shear dispersing device according to claim 2, wherein the stator unit (2) and the rotor unit (3) are arranged opposite, the thickness of the stator outer ring (21) being greater than the thickness of the stator inner ring (23) and the stator ribs (22) and the thickness of the rotor inner ring (31) being greater than the thickness of the rotor outer ring (33) and the rotor ribs (32) in the axial direction of the mandrel (4);
a first axial channel (6) is formed between the inner wall of the stator outer ring (21) and the outer wall of the rotor outer ring (33), a second axial channel (8) is formed between the outer wall of the rotor inner ring (31) and the inner wall of the stator inner ring (23), and the flow directions of the first axial channel (6) and the second axial channel (8) are consistent with the axial direction of the shaft core (4);
radial channels (7) are formed between the side walls of the rotor ribs (32) and the side walls of the adjacent stator ribs (22), and the flow directions of the radial channels (7) are mutually perpendicular to the axial direction of the shaft core (4);
the first axial channel (6), the radial channel (7) and the second axial channel (8) are sequentially communicated to form a second channel for shearing and dispersing materials; the second axial channels (8) are communicated with two corresponding radial channels (7) on two sides of the stator rib (22) so that a plurality of second channels are communicated in sequence.
4. A shear dispersing device according to claim 3, characterized in that the radial channels (7) are adjustable in width and in that their width adjustment ranges from 1 to 4mm.
5. The shear dispersing device according to claim 4, further comprising an adjusting washer provided with a receiving groove on at least one side of the rotor inner ring (31), the adjusting washer being sleeved on the shaft core (4) and located in the receiving groove, the adjusting washer being adapted to adjust the width of the radial channel (7).
6. The shear dispersing device according to claim 2, further comprising a fixing member (5), said fixing member (5) comprising a spacer (51) which is fitted over said shaft core (4) and abuts against said rotor inner ring (31) at the front port of said barrel (1), and a fastener (52) connected to said shaft core (4) so as to be adapted to fix said spacer (51) on said rotor inner ring (31).
7. The shear dispersing device according to claim 6, wherein a limit groove is provided on a side of the rotor inner ring (31) facing the front end of the cylinder (1), and the gasket (51) abuts against a groove bottom of the limit groove.
8. The shearing dispersing device according to claim 2, characterized in that a first positioning key (11) is arranged on the cylinder (1), and a first positioning groove (211) which can be matched with the positioning key is arranged on the outer wall of the stator outer ring (21); the shaft core (4) is provided with at least one second positioning key (41), and the inner wall of the rotor inner ring (31) is provided with a second positioning groove (311) matched with the second positioning key (41).
9. Shear dispersing device according to claim 1, characterized in that the cylinder (1) has a wall provided with a medium heat exchange channel having a medium inlet and a medium outlet.
10. A continuous pulping apparatus comprising a screw extrusion device and a shear dispersing device according to any of the preceding claims 1-9, said screw extrusion device comprising an extrusion barrel (1) and screw extrusion elements provided in said extrusion barrel (1), said barrel (1) being in abutment with the discharge end of said extrusion barrel (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211576263.8A CN116020302A (en) | 2022-12-07 | 2022-12-07 | Shearing and dispersing device and continuous pulping equipment |
| PCT/CN2023/088740 WO2024119689A1 (en) | 2022-12-07 | 2023-04-17 | Shearing and dispersing apparatus and continuous pulping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211576263.8A CN116020302A (en) | 2022-12-07 | 2022-12-07 | Shearing and dispersing device and continuous pulping equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116020302A true CN116020302A (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211576263.8A Pending CN116020302A (en) | 2022-12-07 | 2022-12-07 | Shearing and dispersing device and continuous pulping equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116020302A (en) |
| WO (1) | WO2024119689A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116870775A (en) * | 2023-08-22 | 2023-10-13 | 深圳市尚水智能股份有限公司 | Pulping machine |
| CN116943474A (en) * | 2023-08-22 | 2023-10-27 | 深圳市尚水智能股份有限公司 | Dispersing mechanism and pulping equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6502980B1 (en) * | 2001-04-13 | 2003-01-07 | Bematek Systems Inc | In-line homogenizer using rotors and stators in a housing for creating emulsions, suspensions and blends |
| SE542677C2 (en) * | 2018-05-18 | 2020-06-23 | Valmet Oy | Mixing apparatus comprising a rotor and a stator |
| CN217042141U (en) * | 2022-03-01 | 2022-07-26 | 宏工科技股份有限公司 | Cylinder dispersing device |
| CN216987148U (en) * | 2022-03-18 | 2022-07-19 | 肇庆力合技术发展有限公司 | Pipeline type high-shear dispersion emulsifying machine and multistage dispersion system |
-
2022
- 2022-12-07 CN CN202211576263.8A patent/CN116020302A/en active Pending
-
2023
- 2023-04-17 WO PCT/CN2023/088740 patent/WO2024119689A1/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116870775A (en) * | 2023-08-22 | 2023-10-13 | 深圳市尚水智能股份有限公司 | Pulping machine |
| CN116943474A (en) * | 2023-08-22 | 2023-10-27 | 深圳市尚水智能股份有限公司 | Dispersing mechanism and pulping equipment |
| CN116943474B (en) * | 2023-08-22 | 2024-03-19 | 深圳市尚水智能股份有限公司 | Dispersing mechanism and pulping equipment |
| CN116870775B (en) * | 2023-08-22 | 2024-04-26 | 深圳市尚水智能股份有限公司 | Pulping machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024119689A1 (en) | 2024-06-13 |
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