CN221333616U - Tooth-shaped dispersing component for dispersing and mixing pulping machine, dispersing and mixing pulping machine and pulping system - Google Patents

Abstract

The utility model belongs to the technical field of solid-liquid mixing pulping equipment, and discloses a tooth-shaped dispersing assembly for a mixing and dispersing pulping machine, the dispersing and mixing pulping machine and a pulping system. The tooth-shaped dispersing assembly comprises a dispersing shell, an inner cylinder, tooth-shaped dispersing wheels and a driving shaft; an inner cylinder is fixed in the dispersion shell, and a cavity surrounded by the inner wall of the inner cylinder is a dispersion cavity; a feed inlet is formed in the side wall of the bottom of the dispersion shell and is communicated with the dispersion cavity; a driving shaft is arranged in the dispersing cavity and is in driving connection with a tooth-shaped dispersing wheel, and the tooth-shaped dispersing wheel is positioned in the dispersing cavity and forms a dispersing slit with the inner wall of the inner cylinder; the tooth-shaped dispersing wheel is uniformly provided with teeth and tooth-shaped grooves along the circumferential direction. The utility model can realize high-efficiency dispersion of high-flow and high-viscosity slurry, has both dispersion quality and dispersion efficiency, has simple structure, can realize nonmetal material manufacture, greatly reduces cost, can solve the problem of metal pollution in the stirring process of the lithium battery, and greatly reduces the short-circuit failure risk of the lithium battery.

Description

Tooth-shaped dispersing component for dispersing and mixing pulping machine, dispersing and mixing pulping machine and pulping system

Technical Field

The utility model belongs to the technical field of solid-liquid mixing pulping equipment, and particularly relates to a tooth-shaped dispersing component for a mixing and dispersing pulping machine, the dispersing and mixing pulping machine and a pulping system.

Background

In the existing lithium battery slurry production and manufacturing process, a dispersion mixing slurry making machine is required to be used for evenly mixing the slurry. The dispersing module is an important part for realizing uniform mixing of powder and liquid, and fully cuts and disperses the slurry through the dispersing module so as to be beneficial to subsequent uniform mixing of the powder and the liquid and form slurry with good consistency. However, as the dispersion mixing pulping machine needs larger slurry flow during working to realize the efficient powder-liquid mixing function, the traditional stator-rotor module cannot meet the requirements of high viscosity and large flow of the lithium battery due to small flow area of a core dispersion area. How to efficiently disperse high-flow high-viscosity slurry and simultaneously consider the dispersion quality and the dispersion effect is a difficult problem which needs to be solved in the industry at present.

Chinese patent CN217042141U and japanese patent JP2007125454A disclose a cylindrical dispersing device, since the core dispersing area of the structure is located between the dispersing cylinder and the cylinder wall, the gap of the shearing area is narrow and only small flow of slurry can be allowed to circulate, in order to solve the problem, the dispersing rotor web is provided with circulating round holes, and large flow of materials can directly pass through the round holes of the intermediate web, which can cause a large amount of slurry to directly pass through the dispersing module without passing through the high shearing area, resulting in uneven material dispersion and poor dispersion consistency.

Chinese patent CN218901577U discloses a slurry dispersing device, wherein the upper portion of the inner cavity of the shell is provided with a dispersing cavity, the lower portion is provided with an output cavity, at least one stage of dispersing components are arranged in series in the dispersing cavity, and a conveying impeller is arranged in the output cavity. The multistage dispersion assembly is arranged in the dispersion cavity, so that the slurry can be fully and efficiently dispersed, meanwhile, as the multistage dispersion cavity forms a plurality of shearing areas, the material conveying path is tortuous, the conveying resistance is high, and the circulation of high-flow and high-viscosity slurry is also unfavorable, therefore, the conveying impeller is arranged below the dispersion assembly, and the conveying impeller is used for supplying conveying power to push so as to meet the conveying of the high-flow and high-viscosity slurry. But the conveying impeller increases the structural complexity of the slurry dispersing device, and the multi-stage dispersing assembly is complex in structure, so that the production, use and maintenance costs of the dispersing device are increased, and the dispersing device only has a dispersing function and does not have a powder-liquid mixing function.

Disclosure of utility model

The utility model aims to solve at least one technical problem in the background art, and provides a tooth-shaped dispersing component for a dispersing and mixing pulping machine, the dispersing and mixing pulping machine and a pulping system, which can realize high-efficiency dispersion of high-flow high-viscosity pulp, and has the advantages of dispersing quality and dispersing efficiency, simple structure, easiness in production and low use and maintenance cost.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

A tooth-shaped dispersing component for a mixed dispersion pulping machine comprises a dispersing shell, an inner cylinder, tooth-shaped dispersing wheels and a driving shaft;

An inner cylinder is fixedly arranged in the dispersion shell, and a cavity surrounded by the inner wall of the inner cylinder is a dispersion cavity;

the dispersing shell is provided with a feed inlet which is communicated with the dispersing cavity;

A driving shaft is arranged in the dispersing cavity and is in driving connection with a tooth-shaped dispersing wheel, and the tooth-shaped dispersing wheel is positioned in the dispersing cavity and forms a dispersing slit with the inner wall of the inner cylinder;

The tooth-shaped dispersing wheel is uniformly provided with teeth and tooth-shaped grooves along the circumferential direction.

Further, the tooth-shaped dispersing wheel is a straight gear dispersing wheel or a spiral gear dispersing wheel.

Further, the inner wall of the inner cylinder matched with the tooth-shaped dispersing wheel is provided with a straight groove or a spiral groove.

Further, the outer surface of the tooth-shaped dispersion wheel is provided with grains; and/or the inner wall of the inner cylinder is provided with a nonmetallic lining, and the nonmetallic lining is provided with lines or circulation grooves.

Further, the tooth-shaped dispersing wheel is made of nonmetallic materials.

Still further, the nonmetallic material is PEEK, POM, or PPS.

Further, a cooling jacket is arranged between the inner cylinder and the inner wall of the dispersing shell;

The cooling jacket surrounds the outer side of the dispersing cavity, a cooling water inlet is formed in one side of the bottom of the cooling jacket, and a cooling water outlet is formed in one side of the upper portion of the cooling jacket.

Still further, the cooling jacket has a thickness of 2-10mm.

Further, the driving shaft penetrates through the bottom of the dispersing shell, the lower end of the driving shaft is connected with the driving device, and the upper end of the driving shaft is connected with the toothed dispersing wheel;

A sealing assembly is arranged at the joint of the driving shaft and the dispersing shell.

Further, the flow area of slurry on the feeding side of the tooth-shaped grooves of the tooth-shaped dispersion wheel is larger than the flow area of slurry on the discharging side.

Furthermore, the flow area size of the tooth-shaped groove is designed in a matching way with the viscosity of the slurry, and the matching design needs to satisfy the following formula:

The ratio of the feed flow rate of the slurry/the slurry flow cross section = set slurry flow rate;

wherein:

slurry flow cross section = dispersion slot cross section + all tooth groove cross sections;

The slurry flow rate was set to 0.3-3m/s.

Meanwhile, the utility model provides a dispersion mixing pulping machine, which comprises the tooth-shaped dispersion assembly and a powder-liquid mixing assembly, wherein the tooth-shaped dispersion assembly is positioned at the slurry inlet side below the powder-liquid mixing assembly;

The powder-liquid mixing assembly comprises a mixing shell; the upper part of the mixing shell is provided with a powder inlet, the bottom of the mixing shell is provided with a slurry inlet, and one side of the bottom of the mixing shell is provided with a discharge hole; a mixing stator is arranged in the cavity of the mixing shell close to the bottom, a cavity surrounded by the inner wall of the mixing stator is a mixing cavity, and the mixing cavity is communicated with a dispersing cavity of the tooth-shaped dispersing assembly;

The mixing stator is uniformly provided with a plurality of circulation grooves along the circumferential direction, a circulation gap is reserved between the bottom of the mixing stator and the bottom wall of the mixing shell, and the mixing cavity is communicated with the discharge port through the circulation grooves and the circulation gap;

The driving shaft of the tooth-shaped dispersing assembly extends upwards to the mixing shell, the driving shaft is provided with a spiral impeller in the mixing cavity, and the spiral impeller and the driving shaft form a mixing rotor;

and a mixing area is formed between the outer wall of the mixing rotor and the inner wall of the mixing stator, powder and dispersed slurry are mixed in the mixing area, and mixed liquid enters the discharge port through the circulation groove to be led out.

Further, the mixing shell is provided with a conical hopper structure above, and the driving shaft is provided with crushing blades above the mixing rotor.

In addition, the utility model also provides a pulping system which comprises any one of the dispersing and mixing pulping machines and a liquid tank;

The liquid inlet of the liquid tank is communicated with the discharge port of the dispersion mixing pulping machine through a liquid inlet pipeline;

A stirring device is arranged in the liquid tank and used for stirring the mixed liquid;

The liquid tank bottom is provided with out the liquid valve, go out the liquid valve through the drain pipe way intercommunication to the feed inlet of dispersion mixing pulping machine, be provided with the feed pump on the drain pipe way.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The tooth-shaped dispersing component comprises the tooth-shaped dispersing wheel, wherein the tooth-shaped dispersing wheel is provided with tooth-shaped grooves at the high-shear dispersing slit area, the tooth-shaped grooves are used for slurry circulation, the slurry circulation area and the shearing effect are increased, high-efficiency dispersion of high-flow high-viscosity slurry can be realized, the dispersing quality and the dispersing efficiency are both considered, and the tooth-shaped dispersing component is simple in structure, easy to produce and low in use and maintenance cost;

(2) According to the tooth-shaped dispersing assembly, the tooth-shaped dispersing wheel maintains the same shearing diameter, slurry has good dispersing consistency when flowing through a shearing dispersing area, and meanwhile, slurry in the tooth-shaped groove and slurry at a dispersing slit can be rapidly replaced and sheared by virtue of a rotary centrifugal effect, so that the consistency of slurry dispersing treatment is further remarkably improved;

(3) The existing stator and rotor structure is made of metal materials, and metal abrasion caused by stirring causes short circuit failure of a lithium battery, which is a risk point of the greatest lithium battery stirring working procedure at the present stage, and the existing pulping equipment cannot solve the problem, if a nonmetallic material is adopted, the influence can be avoided, but the existing stator and rotor dispersing structure is made of a thin-wall cylinder structure, and a liquid circulation groove is required to be arranged at the positions of the cylinder wall and the like, so that the problem of easy deformation in processing exists when the nonmetallic material is used for manufacturing, and the structure strength is weak and the deformation is large during high-speed rotation, so that gaps are uneven, and the dispersing effect is seriously influenced; the tooth-shaped dispersion wheel is of a cylindrical wheel structure, the structural strength and the processing performance are greatly improved, the manufacture of nonmetallic materials can be realized, the cost is greatly reduced, the problem of metal pollution in the stirring process of the lithium battery can be solved, the quality of slurry is improved, and the short-circuit failure risk of the lithium battery is greatly reduced.

Drawings

FIG. 1 is a schematic view of a tooth form dispersing assembly according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view at A-A in FIG. 1;

FIG. 3 is a schematic view of a spur gear dispersion wheel according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a helical gear dispersion wheel according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a tooth form structure of a tooth form dispersion wheel according to an embodiment of the utility model;

FIG. 6 is a schematic view of a spur gear dispersion wheel with diagonal cross raised grains according to an embodiment of the present utility model;

FIG. 7 is a schematic structural view of an inner barrel with a straight slot according to an embodiment of the present utility model;

FIG. 8 is a schematic structural view of an inner barrel with spiral grooves according to an embodiment of the present utility model;

FIG. 9 is a schematic view of another embodiment of a tooth dispersion assembly;

FIG. 10 is a schematic view of a dispersion mixing pulper according to an embodiment of the utility model;

Fig. 11 is a schematic structural diagram of a pulping system according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model 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 utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Example 1

The embodiment of the utility model provides a tooth-shaped dispersing assembly for a mixed dispersion pulping machine, which is shown in figures 1-3 and comprises a dispersing shell 1, an inner cylinder 2, tooth-shaped dispersing wheels 3 and a driving shaft 5; an inner cylinder 2 is fixedly arranged in the dispersion shell 1, and a cavity surrounded by the inner wall of the inner cylinder 2 is a dispersion cavity; a feed inlet 8 is formed in the side wall of the bottom of the dispersion shell 1, and the feed inlet 8 is communicated with the dispersion cavity; a driving shaft 5 is arranged in the dispersion cavity, the driving shaft 5 is in driving connection with a tooth-shaped dispersion wheel 3, and the tooth-shaped dispersion wheel 3 is positioned in the dispersion cavity and forms a dispersion slit 7 with the inner wall of the inner cylinder 2; the tooth-shaped dispersing wheel 3 is uniformly provided with teeth 301 and tooth-shaped grooves 302 along the circumferential direction.

When the high-shear dispersing device is used, slurry enters the tooth-shaped dispersing assembly from the feed inlet 8 and is subjected to high-shear dispersion through the tooth-shaped dispersing wheel 3 rotating at a high speed at the dispersing slit 7, meanwhile, the tooth-shaped dispersing wheel 3 is provided with tooth-shaped grooves 302 at the high-shear dispersing slit area, the tooth-shaped grooves 302 are used for circulating the slurry, the circulating area and the shearing effect of the slurry are increased, and the high-viscosity slurry can flow in a large quantity.

In addition, the tooth-shaped dispersing wheel 3 keeps the same shearing diameter, slurry has better dispersion consistency when flowing through a shearing dispersing area, and simultaneously, the slurry in the tooth-shaped groove 302 and the slurry at the dispersing slit 7 can be quickly replaced and sheared by virtue of the rotary centrifugal effect, so that the consistency of slurry dispersing treatment is further obviously improved.

In some embodiments, the toothed dispersion wheel 3 may be a spur gear dispersion wheel, as shown in fig. 3, or a helical gear dispersion wheel, as shown in fig. 4. When the tooth-shaped dispersing wheel 3 is a spiral gear dispersing wheel, the tooth-shaped groove 302 is a spiral groove, which has a conveying function and can further improve the flow of high-viscosity slurry.

Simultaneously, the surface of profile of tooth dispersion wheel 3 can also increase and set up the line, the line comprises recess and/or arch, as shown in fig. 6, the surface of profile of tooth dispersion wheel 3 is provided with oblique cross protruding line 303, through the setting of line, can increase the torrent of thick liquids, further promotes the shearing action and the dispersion effect of thick liquids.

In other embodiments, referring to fig. 7-8, the inner wall of the inner cylinder 2 matched with the toothed dispersion wheel 3 may be provided with a straight groove or a spiral groove to further increase the flow of the high-viscosity slurry, and at the same time, the outer surface of the inner cylinder 2 may be processed into different lines to improve the shearing effect.

In other embodiments, the inner wall of the inner cylinder 2 may also be provided with a non-metal liner, and the non-metal liner is provided with lines or flow grooves. The purpose of this arrangement is: the nonmetallic lining can reduce the problem of slurry pollution caused by metal abrasion during stirring, and improve the quality of slurry.

Meanwhile, the inner wall of the inner cylinder 2 can be additionally provided with grains, and the grains are formed by grooves and/or protrusions. Through the setting of line, can increase the torrent of thick liquids, further promote the shearing effect and the dispersion effect of thick liquids.

Because the existing stator-rotor structure is made of metal materials, metal abrasion caused by high-speed shearing has a fatal influence on lithium battery slurry, if a nonmetallic material is adopted, the influence can be avoided, but the existing stator-rotor dispersing structure is made of a thin-wall cylinder structure, liquid circulation grooves are required to be formed in the positions of cylinder walls and the like, the problem of easy deformation in processing exists when the nonmetallic material is used for manufacturing, the structural strength is weak, the deformation is large during high-speed rotation, gaps are uneven, and the dispersing effect is seriously influenced.

The toothed dispersion wheel 3 of the embodiment of the utility model has a cylindrical wheel structure, greatly improves the structural strength and the processing performance, can realize nonmetal production, and can avoid the adverse effect of metal abrasion on lithium battery slurry, so that in some embodiments, the toothed dispersion wheel 3 can be made of nonmetal materials, such as PEEK, POM, PPS and other nonmetal materials, wherein PEEK materials are preferred.

In some embodiments, a cooling jacket 6 (see fig. 1) is disposed between the inner cylinder 2 and the inner wall of the dispersing housing 1, the cooling jacket 6 surrounds the outside of the dispersing cavity, a cooling water inlet 601 is disposed on one side of the bottom of the cooling jacket 6, a cooling water outlet 602 is disposed on one side of the upper portion of the cooling jacket, and cooling is performed by using circulating cooling water, so that the problem that the material is damaged due to too fast temperature rise in the shearing dispersing process, and the prepared battery performance is affected is avoided.

In other embodiments, the cooling jacket has a thickness of 2-10mm, preferably 3mm, to increase the cooling heat exchange efficiency.

In some embodiments, the driving shaft 5 passes through the bottom of the dispersing casing 1, the lower end is connected with a driving device, and the upper end is connected with the toothed dispersing wheel 3; the joint of the driving shaft 5 and the dispersing shell 1 is provided with a sealing component 4, and the sealing component can be specifically sealed by adopting the existing double-end-face mechanical sealing component so as to realize the sealing of the rotating joint and prevent slurry leakage.

In some embodiments, as shown in fig. 5, the tooth groove root width of the tooth groove 302 of the tooth-shaped dispersing wheel 3 is larger than the tooth groove opening width (i.e. the tooth groove root width of the tooth groove is wider and the opening is narrower), so that the slurry replacement rate is improved, and the dispersing is convenient.

Meanwhile, the flow area size of the tooth-shaped groove 302 is designed to match the viscosity of the slurry, and the formula to be satisfied by the matching design is as follows:

The ratio of the feed flow rate of the slurry/the slurry flow cross section = set slurry flow rate;

wherein slurry flow cross section = dispersion slot cross section + all tooth groove cross sections;

the slurry flow rate is preferably set to 0.3-3m/s.

In other embodiments, as shown in fig. 9, the flow area of the slurry on the feeding side of the tooth-shaped groove 302 is larger than the flow area of the slurry on the discharging side, and the tooth slot of the tooth-shaped groove 302 may be specifically set from bottom to top to be shallower. With the above arrangement, the filling rate of the tooth-shaped grooves 302 during slurry dispersion can be increased, and the dispersion efficiency can be improved.

Example 2

The embodiment of the utility model provides a dispersive mixing pulping machine, which adopts the tooth-shaped dispersive component in the embodiment 1.

As shown in fig. 10, the dispersion mixing pulping machine includes a powder-liquid mixing assembly and a tooth-shaped dispersing assembly located at a slurry inlet side below the powder-liquid mixing assembly.

The powder-liquid mixing assembly comprises a mixing shell 9; the powder inlet 15 is arranged above the mixing shell 9, the slurry inlet is arranged at the bottom, and the discharge port 14 is arranged at one side of the bottom; the mixing shell 9 is characterized in that a mixing stator 13 is arranged near the bottom in the cavity, a cavity surrounded by the inner wall of the mixing stator 13 is a mixing cavity, and the mixing cavity is in conductive connection with the dispersing cavity of the tooth-shaped dispersing assembly.

A plurality of circulation grooves 1301 are uniformly formed in the mixing stator 13 along the circumferential direction, circulation gaps 16 are reserved between the bottom of the mixing stator 13 and the bottom wall of the mixing shell 9, and the mixing cavity is communicated with the discharge port 14 through the circulation grooves 1301 and the circulation gaps 16; the driving shaft 5 of the tooth-shaped dispersing assembly extends upwards to the mixing shell 9, the driving shaft 5 is arranged in the mixing cavity and is provided with a spiral impeller 11, and the spiral impeller 11 and the driving shaft 5 form a mixing rotor; a mixing area 12 is formed between the outer wall of the mixing rotor and the inner wall of the mixing stator 13, powder and dispersed slurry are mixed in the mixing area 12, and mixed liquid enters the discharge port 14 through the flow groove 1301 for guiding out.

In the embodiment of the utility model, the mixing rotor adopts the helical blade 11 to mix the dispersed slurry and powder, so that the shearing force is high, the mixing is facilitated, the mixed liquid is pushed to be discharged, and the mixed liquid which still keeps higher viscosity after mixing is particularly facilitated to be discharged at a high flow rate; meanwhile, in the mixing process, for the mixed liquid far away from the discharge hole 14, part of the mixed liquid thrown out of the circulation groove 1301 due to the rotation and centrifugation effect can flow back to the mixing area 12 through the circulation gap 16 for re-mixing, so that the mixing uniformity is improved, and meanwhile, the other effect of the gap 16 is that: and the foreign matter compatibility of the equipment is improved, and the metal abrasion caused by the continuous friction of the metal foreign matter in the mixing cavity is prevented.

In some embodiments, the upper part of the mixing housing 9 is a conical hopper structure, and the driving shaft 5 is provided with a crushing blade 10 above the mixing rotor, so as to crush the incoming powder of the powder inlet 15, and further facilitate the mixing of the powder and the slurry.

Example 3

The embodiment of the utility model provides a pulping system, which adopts the dispersion mixing pulping machine as in the embodiment 2, and further comprises a liquid tank 20.

As shown in fig. 11, the liquid inlet of the liquid tank 20 is communicated with the discharge port 14 of the dispersion mixing pulping machine through a liquid inlet pipeline; a stirring device 17 is arranged in the liquid tank 20 and is used for stirring the mixed liquid; the liquid tank bottom is provided with a liquid outlet valve 18, liquid outlet valve 18 is through the feed inlet 8 of drain pipe intercommunication to dispersion mixing pulping machine, be provided with feed pump 19 on the drain pipe.

The pulping system can realize repeated circulation dispersion mixing of the slurry, so that the dispersion mixing effect is better, and the pulping requirement of the lithium battery slurry is met.

The foregoing description is only exemplary of the utility model and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the scope of the present utility model should be included in the protection scope of the present utility model.

Claims (14)

1. The tooth-shaped dispersing assembly for the dispersive mixing pulping machine is characterized by comprising a dispersing shell, an inner cylinder, tooth-shaped dispersing wheels and a driving shaft;

An inner cylinder is fixedly arranged in the dispersion shell, and a cavity surrounded by the inner wall of the inner cylinder is a dispersion cavity;

the dispersing shell is provided with a feed inlet which is communicated with the dispersing cavity;

A driving shaft is arranged in the dispersing cavity and is in driving connection with a tooth-shaped dispersing wheel, and the tooth-shaped dispersing wheel is positioned in the dispersing cavity and forms a dispersing slit with the inner wall of the inner cylinder;

The tooth-shaped dispersing wheel is uniformly provided with teeth and tooth-shaped grooves along the circumferential direction.

2. The tooth dispersion assembly of claim 1, wherein the tooth dispersion wheel is a spur or helical dispersion wheel.

3. The tooth dispersion assembly as claimed in claim 2, wherein the inner wall of the inner cylinder that mates with the tooth dispersion wheel is provided with straight or spiral grooves.

4. The tooth dispersion assembly of claim 2, wherein an outer surface of the tooth dispersion wheel is provided with a texture; and/or the inner wall of the inner cylinder is provided with a nonmetallic lining, and the nonmetallic lining is provided with lines or circulation grooves.

5. The tooth dispersion assembly of claim 1, wherein the tooth dispersion wheel is fabricated from a non-metallic material.

6. The tooth dispersion assembly of claim 5, wherein the non-metallic material is PEEK, POM, or PPS.

7. The tooth dispersion assembly according to claim 1, wherein a cooling jacket is provided between the inner barrel and the inner wall of the dispersion housing;

The cooling jacket surrounds the outer side of the dispersing cavity, a cooling water inlet is formed in one side of the bottom of the cooling jacket, and a cooling water outlet is formed in one side of the upper portion of the cooling jacket.

8. The tooth dispersion assembly as claimed in claim 7, wherein said cooling jacket has a thickness of 2-10mm.

9. The tooth-shaped dispersing assembly according to claim 1, wherein the driving shaft passes through the bottom of the dispersing shell, the lower end is connected with the driving device, and the upper end is connected with the tooth-shaped dispersing wheel;

A sealing assembly is arranged at the joint of the driving shaft and the dispersing shell.

10. The tooth dispersion assembly of claim 1, wherein the tooth grooves of the tooth dispersion wheel have a greater feed side slurry flow area than discharge side slurry flow area.

11. The tooth dispersion assembly of claim 10, wherein the flow area size of the tooth grooves is designed to match the slurry viscosity, the matching design satisfying the formula:

The ratio of the feed flow rate of the slurry/the slurry flow cross section = set slurry flow rate;

wherein:

slurry flow cross section = dispersion slot cross section + all tooth groove cross sections;

The slurry flow rate was set to 0.3-3m/s.

12. A dispersive mixing pulper comprising a tooth dispersion assembly according to any one of claims 1 to 11, further comprising a powder-liquid mixing assembly, the tooth dispersion assembly being located on the slurry inlet side below the powder-liquid mixing assembly;

the powder-liquid mixing assembly comprises a mixing shell; the upper part of the mixing shell is provided with a powder inlet, the bottom of the mixing shell is provided with a slurry inlet, and one side of the bottom of the mixing shell is provided with a discharge hole; a mixing stator is arranged in the cavity of the mixing shell close to the bottom, a cavity surrounded by the inner wall of the mixing stator is a mixing cavity, and the mixing cavity is communicated with a dispersing cavity of the tooth-shaped dispersing assembly;

The mixing stator is uniformly provided with a plurality of circulation grooves along the circumferential direction, a circulation gap is reserved between the bottom of the mixing stator and the bottom wall of the mixing shell, and the mixing cavity is communicated with the discharge port through the circulation grooves and the circulation gap;

The driving shaft of the tooth-shaped dispersing assembly extends upwards to the mixing shell, the driving shaft is provided with a spiral impeller in the mixing cavity, and the spiral impeller and the driving shaft form a mixing rotor;

and a mixing area is formed between the outer wall of the mixing rotor and the inner wall of the mixing stator, powder and dispersed slurry are mixed in the mixing area, and mixed liquid enters the discharge port through the circulation groove to be led out.

13. The dispersive mixing pulper of claim 12, wherein the mixing housing is of a conical hopper configuration above and the drive shaft is provided with pulverizing blades above the mixing rotor.

14. A pulping system comprising a dispersive mixing pulper according to claim 12 or 13, further comprising a liquid tank;

The liquid inlet of the liquid tank is communicated with the discharge port of the dispersion mixing pulping machine through a liquid inlet pipeline;

A stirring device is arranged in the liquid tank and used for stirring the mixed liquid;

The liquid tank bottom is provided with out the liquid valve, go out the liquid valve through the drain pipe way intercommunication to the feed inlet of dispersion mixing pulping machine, be provided with the feed pump on the drain pipe way.