CN120816623A

CN120816623A - Composite raw material dispersing device

Info

Publication number: CN120816623A
Application number: CN202511213181.0A
Authority: CN
Inventors: 向守强; 陈圣平; 黄文兵
Original assignee: Yichang Siling Plastic Products Co ltd
Current assignee: Yichang Siling Plastic Products Co ltd
Priority date: 2025-08-28
Filing date: 2025-08-28
Publication date: 2025-10-21

Abstract

The invention provides a composite raw material dispersing device which comprises a stirring barrel and a stirring shaft, wherein the feeding mechanism comprises a conical flow distribution cover fixed at the top of the stirring barrel, a central liquid material channel and a ring Zhou Fenliao channel which are arranged on the conical flow distribution cover, a circular seam discharging assembly is arranged at the bottom of the ring Zhou Fenliao channel, the shearing dispersing system comprises a rotor mechanism, a feeding channel and an internal screening cavity, the rotor mechanism comprises a rotary rotor, the feeding channel is arranged at the top of the rotary rotor, the screening cavity is internally provided with a screening plate and a screening material channel, the stator mechanism comprises a fixed stator, a plurality of layers of shearing teeth which are inserted alternately and are not contacted are arranged between the side surface of the fixed stator and the rotary rotor, and sharp holes which are distributed alternately are arranged between the bottom of the fixed stator and the rotary rotor. The invention realizes high-efficiency, uniform and fine dispersion effect through multi-stage and multi-mode shearing action.

Description

Composite raw material dispersing device

Technical Field

The invention relates to the technical field of industrial stirring and dispersing equipment, in particular to a composite raw material dispersing device.

Background

In the production process of the plastic composite raw material, the liquid raw material and the powder raw material are required to be uniformly mixed and dispersed to form uniform suspension or slurry. The process requires equipment to realize macroscopic mixing, and powder particles are fully scattered and wetted to avoid caking so as to achieve extremely high dispersion uniformity and stability;

conventional dispersing devices generally employ impellers or fluted discs rotating at high speed, and the strong shearing force generated by the dispersing devices is used for breaking up the lumps, so that the following problems exist in the use process of the devices;

The shearing path is single, namely, the material is sheared at a high speed only in the area of the dispersing disc at one time, and the formed refractory particles can not be fully crushed by the single shearing, so that the dispersion fineness is limited;

Dead angles exist in the flow field, namely a flow dead zone is easy to occur in the traditional stirring barrel, and partial materials can not be conveyed to the area with the strongest shearing, so that uneven dispersion is caused.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention provides a composite raw material dispersing device, which realizes premixing and orderly feeding of powder-liquid materials and effectively improves the mixing and dispersing effects of the materials.

According to an embodiment of the present invention, there is provided a composite raw material dispersing apparatus including a stirring barrel, a stirring shaft rotatably connected to the stirring barrel and extending coaxially into the stirring barrel, characterized by further comprising:

the feeding mechanism comprises a conical flow distribution cover fixed at the top of the stirring barrel, a central liquid material channel and a ring Zhou Fenliao channel which are arranged on the conical flow distribution cover, and a circular seam discharging component is arranged at the bottom of the ring Zhou Fenliao channel;

the shearing and dispersing mechanism comprises a rotor mechanism coaxially connected with the stirring shaft and a stator mechanism connected with the stirring barrel and arranged around the rotor mechanism;

The rotor mechanism comprises a rotary rotor, a feeding channel arranged at the top of the rotary rotor and a screening cavity arranged in the rotary rotor, a screening plate is arranged in the screening cavity, and a screening channel communicated with the screening cavity is arranged on the side face of the rotary rotor;

The stator mechanism comprises a fixed stator, the side surface of the fixed stator is in clearance fit with the rotary rotor, a plurality of layers of shearing teeth which are inserted in a staggered way and are not in contact with each other are arranged between the side surface of the fixed stator and the rotary rotor, and sharp holes which are distributed in a staggered way are formed in the bottom of the fixed stator and the clearance fit of the rotary rotor between the bottom of the fixed stator and the clearance fit of the rotary rotor.

Preferably, the rotary rotor comprises a truncated cone body and a cylinder which are coaxially connected and arranged up and down, the screening plate and the screening channel are arranged in the truncated cone body, a gap between the fixed stator and the truncated cone body is gradually reduced from top to bottom, and the shearing teeth comprise primary cutting teeth arranged between the truncated cone body and the fixed stator, and fine cutting teeth arranged between the cylinder and the fixed stator.

Further preferably, the screening plate is a screen mesh with a conical surface structure, and the screening passage horizontally penetrates from the edge of the screening plate to the outside.

Further preferably, the top of the feeding channel is fixedly provided with a cover body with an opening at one side and used for feeding materials.

Further preferably, a baffling paddle for driving the fluid to move downwards is fixedly arranged on the stirring shaft, and the baffling paddle is arranged above the feeding channel.

Further preferably, the outer side surface of the fixed stator is a cylindrical surface, and the top of the fixed stator is provided with a funnel-shaped material collecting groove positioned above the feeding channel.

Further preferably, the side wall of the material collecting tank is provided with a diversion hole penetrating to the outer side of the material collecting tank, the rotor mechanism further comprises a cylinder body connected with the stirring shaft and surrounding the fixed stator, and the cylinder body is provided with a shearing hole.

Further preferably, the diversion holes are inclined downwards from inside to outside, the shearing holes are arranged along the radial direction, and the inner ends of the shearing holes are positioned on the extension line of the diversion holes.

Further preferably, the cylinder is provided with a spiral blade for driving the fluid to move upwards, the bottom of the rotary rotor is fixedly connected with a rotating shaft penetrating through the fixed stator, and the rotating shaft is provided with a diversion blade for driving the fluid to move outwards.

Still further preferably, the bottom of the ring Zhou Fenliao channel is provided with evenly distributed discharge holes, the circular seam discharge assembly comprises an annular baffle rotationally connected with the ring Zhou Fenliao channel, and the annular baffle is provided with through holes corresponding to the discharge holes.

Compared with the prior art, the invention has the following beneficial effects:

Ordered feeding and premixing, through the design of toper reposition of redundant personnel cover, central liquid material passageway and ring Zhou Fenliao passageway, realized that liquid is followed center, powder evenly unrestrained function all around, make the powder contact with ascending liquid stream promptly in the whereabouts in-process, carry out preliminary wetting, effectively avoided powder caking and float.

And (3) multistage efficient shearing and dispersing, namely, primary screening and shearing, wherein the mixed material is sucked into a rotor, and after primary screening and filtering of large particles by a screening plate, the mixed material is thrown out from a screening material channel and immediately enters a primary cutting tooth area which is formed by a circular truncated cone body of a rotary rotor and a fixed stator and has gradually changed gaps, so that primary coarse shearing is performed. Fine shearing, the material then enters a fine cutting tooth area formed by a cylindrical rotor and a stator, and fine shearing with higher precision is performed. Finally, the materials are sheared and impacted by the sharp hole structures at the bottom of the rotor and the bottom of the stator at extremely high linear speed, so that superfine dispersion is realized.

The forced circulation has no dead angle, the combined design of the baffle, the spiral blade and the diversion blade forms a strong three-dimensional circulation flow field which rises from top to bottom and from inside to outside in the stirring barrel, ensures that all materials can be repeatedly conveyed to a shearing and dispersing system for treatment, thoroughly eliminates the stirring dead angle and ensures the uniformity of the product quality.

The adjustable powder is added, and the annular gap discharging assembly changes the overlapping area of the through hole and the discharging hole by rotating the annular baffle, so that the width of the discharging annular gap of the powder is adjusted steplessly, and the adjustable annular gap discharging device is suitable for powder raw materials with different mobility and different adding rates and is flexible and convenient to operate.

Drawings

FIG. 1 is a schematic diagram of the internal structure of a composite material dispersing device according to the present invention.

Fig. 2 is a schematic view of a partial a enlarged structure in fig. 1 according to the present invention.

Fig. 3 is a schematic diagram of a matching structure of a fixed stator and a rotating rotor in a composite material dispersing device according to the present invention.

Fig. 4 is a schematic diagram of a structure of a fixed stator and a cylinder in a composite material dispersing device according to the present invention.

In the drawings, 1, a stirring barrel, 2, a stirring shaft, 201, a deflector blade, 3, a feeding mechanism, 301, a diversion cover, 302, a central liquid material channel, 303, a ring Zhou Fenliao channel, 304, a discharging hole, 310, a circular seam discharging assembly, 311, an annular baffle, 312, a through hole, 4, a rotor mechanism, 410, a rotary rotor, 411, a feeding channel, 412, a truncated cone, 413, a cylinder, 414, a rotating shaft, 415, a diversion blade, 416, a cover, 420, a screening cavity, 421, a screening plate, 422, a screening channel, 430, a cylinder, 431, a shearing hole, 432, a spiral blade, 5, a stator mechanism, 510, a fixed stator, 511, a sharp hole, 512, a diversion hole, 513, a gathering groove, 520, a shearing tooth, 521, a primary cutting tooth, 522 and a fine cutting tooth.

Detailed Description

The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.

The invention provides an embodiment, as shown in fig. 1, a composite raw material dispersing device, which comprises a stirring barrel 1 and a stirring shaft 2 which is rotatably connected with the stirring barrel 1 and coaxially extends into the stirring barrel 1, wherein the stirring shaft 2 is driven to rotate by a motor, the motor is not shown in the figure, and the stirring shaft 2 is rotatably connected with the top of the stirring barrel 1 through a bearing seat;

The feeding mechanism 3 comprises a conical diversion cover 301 fixed at the top of the stirring barrel 1, a central liquid material channel 302 and a ring Zhou Fenliao channel 303 which are arranged on the conical diversion cover 301, wherein the central liquid material channel 302 is used for injecting liquid raw materials, the ring Zhou Fenliao channel 303 is used for receiving and conveying powder raw materials, and a circular seam discharging assembly 310 is arranged at the bottom of the ring Zhou Fenliao channel 303;

Specifically, as shown in fig. 2, the bottom of the channel 303 of the ring Zhou Fenliao is provided with discharge holes 304 uniformly distributed along the circumferential direction, the circular seam discharge assembly 310 includes a circular baffle 311 rotationally connected with the channel 303 of the ring Zhou Fenliao, the circular baffle 311 is provided with a through hole 312 corresponding to the discharge hole 304, and the contact ratio between the through hole 312 and the discharge hole 304 can be adjusted by rotating the circular baffle 311, so as to control the width of the circular seam where the powder falls;

A shear dispersing system comprising a rotor mechanism 4 coaxially connected with the stirring shaft 2, and a stator mechanism 5 connected with the stirring barrel 1 and arranged around the rotor mechanism 4;

The rotor mechanism 4 comprises a rotary rotor 410, a feeding channel 411 arranged at the top of the rotary rotor 410 and a screening cavity 420 arranged in the rotary rotor 410, a screening plate 421 is arranged in the screening cavity 420, and a screening channel 422 communicated with the screening cavity 420 is arranged on the side surface of the rotary rotor 410;

The stator mechanism 5 comprises a fixed stator 510, wherein the side surface of the fixed stator 510 is in clearance fit with the rotary rotor 410, a plurality of layers of shearing teeth 520 which are inserted in a staggered way and are not in contact with each other are arranged between the side surface of the fixed stator 510 and the rotary rotor 410, and the bottom of the fixed stator 510 is in clearance fit with the rotary rotor 410, and sharp holes 511 which are distributed in a staggered way are arranged between the bottom of the fixed stator and the rotary rotor;

Specifically, as shown in fig. 3, the rotary rotor 410 includes a circular table 412 and a cylinder 413 coaxially connected and disposed up and down, the screening plate 421 and the screening channel 422 are disposed in the circular table 412, a gap between the fixed stator 510 and the circular table 412 is gradually reduced from top to bottom, and the shearing teeth 520 include primary cutting teeth 521 disposed between the circular table 412 and the fixed stator 510, and fine cutting teeth 522 disposed between the cylinder 413 and the fixed stator 510.

In order to enhance the effect of the material subjected to the screening plate 421, in a further embodiment, the screening plate 421 is a screen with a conical surface structure, and the screening channel 422 horizontally penetrates from the edge of the screening plate 421 to the outside;

In order to facilitate the rapid entry of the material into the screening cavity 420, in a further embodiment, the top of the feeding channel 411 is fixedly provided with a cover 416 with an opening on one side for feeding the material, for "feeding" the material when rotating at high speed;

in order to facilitate the downward movement of the material into the feeding channel 411, in a further embodiment, a baffle 201 for driving the fluid to move downward is fixedly arranged on the stirring shaft 2, and the baffle 201 is arranged above the feeding channel 411;

In order to facilitate the material entering the feeding channel 411 under the action of the deflector 201, in a further embodiment, the outer side surface of the fixed stator 510 is a cylindrical surface, and a funnel-shaped material collecting groove 513 is formed at the top of the fixed stator 510 and is located above the feeding channel 411;

in order to provide a multi-mode shearing effect for materials, in a further embodiment, a diversion hole 512 penetrating to the outer side of the material collecting tank 513 is arranged on the side wall of the material collecting tank 513, the rotor mechanism 4 further comprises a cylinder 430 connected with the stirring shaft 2 and arranged around the fixed stator 510, and a shearing hole 431 is arranged on the cylinder 430;

In order to ensure the shearing effect between the shearing holes 431 and the diverting holes 512, in a further embodiment, the diverting holes 512 are inclined downward from inside to outside, the shearing holes 431 are arranged radially and their inward ends are located on the extension of the diverting holes 512;

In order to facilitate the material circulation and shearing, in a further embodiment, as shown in fig. 4, a spiral vane 432 that drives the fluid to move upwards is disposed on the cylinder 430, a rotating shaft 414 that penetrates through the fixed stator 510 is fixedly connected to the bottom of the rotating rotor 410, and a diversion vane 415 that drives the fluid to move outwards is disposed on the rotating shaft 414.

During operation, liquid raw materials are injected from a central liquid material channel 302, powder raw materials are added from a peripheral powder material channel 303, and powder is scattered in a uniform annular curtain shape by adjusting an annular baffle 311;

after passing through the screening plate 421 under the action of centrifugal force, the qualified materials pass through the screening plate 421 and enter the screening cavity 420, and then are extruded to flow out from the orifice 511 along with the continuous feeding of the materials in the screening cavity 420 by the feeding channel 411, and are sheared by the shearing effect of the orifice 511 on the rotary rotor 410 and the fixed stator 510, large-particle materials are thrown out from the screening channel 422 at the edge at a high speed, the thrown materials firstly enter the primary cutting tooth 521 area between the rotary rotor 410 circular table 412 and the fixed stator 510 and are sheared by the first strong force, then enter the fine cutting tooth 522 area between the cylinder 413 and the fixed stator 510 and are sheared by finer force, and finally, the materials are sheared and impacted by the sharp gap with the orifice 511 at the bottom and are dispersed fully;

The other part of the material is ejected from the diversion hole 512 and directly impacted on the shearing hole 431 of the barrel 430 at high speed to be sheared, then the side material moves upwards under the action of the spiral blade 432, is pressed to the lower part again at the baffle blade 201 to form strong forced circulation, and the bottom material flows out from the bottom of the rotor, is thrown to the side by the diversion blade 415 and participates in macroscopic mixing of the whole barrel.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a composite raw material dispersion device, includes agitator (1), with agitator (1) rotate and be connected and coaxial extension reaches (2) in agitator (1), its characterized in that still includes:

The feeding mechanism (3) comprises a conical flow distribution cover (301) fixed at the top of the stirring barrel (1), a central liquid material channel (302) and a ring Zhou Fenliao channel (303) which are arranged on the conical flow distribution cover (301), wherein a circular seam discharging assembly (310) is arranged at the bottom of the ring Zhou Fenliao channel (303);

the shearing and dispersing mechanism comprises a rotor mechanism (4) coaxially connected with the stirring shaft (2) and a stator mechanism (5) connected with the stirring barrel (1) and arranged around the rotor mechanism (4);

The rotor mechanism (4) comprises a rotary rotor (410), a feeding channel (411) arranged at the top of the rotary rotor (410) and a screening cavity (420) arranged in the rotary rotor (410), a screening plate (421) is arranged in the screening cavity (420), and a screening channel (422) communicated with the screening cavity (420) is arranged on the side surface of the rotary rotor (410);

The stator mechanism (5) comprises a fixed stator (510), wherein the side surface of the fixed stator (510) is in clearance fit with the rotary rotor (410), a plurality of layers of shearing teeth (520) which are inserted in a staggered way and are not in contact with each other are arranged between the side surface of the fixed stator (510) and the rotary rotor (410), and the bottom of the fixed stator (510) is in clearance fit with the rotary rotor (410), and sharp holes (511) which are distributed in a staggered way are arranged between the bottom of the fixed stator and the rotary rotor.

2. The composite raw material dispersing device according to claim 1, wherein the rotary rotor (410) comprises a truncated cone (412) and a cylinder (413) which are coaxially connected and are arranged up and down, the screening plate (421) and the screening channel (422) are arranged in the truncated cone (412), a gap between the fixed stator (510) and the truncated cone (412) is gradually reduced from top to bottom, and the shearing teeth (520) comprise primary cutting teeth (521) arranged between the truncated cone (412) and the fixed stator (510) and fine cutting teeth (522) arranged between the cylinder (413) and the fixed stator (510).

3. A composite material dispersing device according to claim 2, wherein said screening plate (421) is a screen mesh of conical surface structure, and said screening passage (422) penetrates horizontally from the edge of said screening plate (421) to the outside.

4. A composite material dispersing device according to claim 1, characterized in that the top of the feed channel (411) is fixedly provided with a cover (416) which is open on one side and is used for feeding materials.

5. The composite raw material dispersing device according to claim 4, wherein a baffling paddle (201) for driving the fluid to move downwards is fixedly arranged on the stirring shaft (2), and the baffling paddle (201) is arranged above the feeding channel (411).

6. The composite material dispersing device according to claim 1, wherein the outer side surface of the fixed stator (510) is a cylindrical surface, and a funnel-shaped material collecting groove (513) is arranged at the top of the fixed stator (510) and is positioned above the feeding channel (411).

7. The composite material dispersing device according to claim 6, wherein a diversion hole (512) penetrating to the outer side of the collecting tank (513) is formed in the side wall of the collecting tank, the rotor mechanism (4) further comprises a cylinder (430) connected with the stirring shaft (2) and arranged around the fixed stator (510), and a shearing hole (431) is formed in the cylinder (430).

8. A composite material dispersing apparatus according to claim 7, wherein said flow dividing holes (512) are provided obliquely downward from inside to outside, said shearing holes (431) are provided radially and an inward end thereof is located on an extension line of said flow dividing holes (512).

9. The composite material dispersing device according to claim 7, wherein a spiral blade (432) for driving the fluid to move upwards is arranged on the cylinder (430), a rotating shaft (414) penetrating through the fixed stator (510) is fixedly connected to the bottom of the rotating rotor (410), and a diversion blade (415) for driving the liquid to move outwards is arranged on the rotating shaft (414).

10. A composite raw material dispersing device according to any one of claims 1 to 9, wherein the bottom of the ring Zhou Fenliao channel (303) is provided with evenly distributed discharge holes (304), the circular seam discharge assembly (310) comprises an annular baffle (311) rotationally connected with the ring Zhou Fenliao channel (303), and the annular baffle (311) is provided with through holes (312) corresponding to the discharge holes (304).