CN218688920U - Liquid dispersion structure of powder-liquid mixing device - Google Patents

Abstract

The utility model discloses a liquid dispersion structure of a powder-liquid mixing device, wherein a dispersion rotor is divided into an upper layer matching structure and a lower layer matching structure by a partition plate, the lower layer matching structure comprises a plurality of circles of lower rotor rings arranged on the bottom surface of the partition plate, the upper layer matching structure comprises a plurality of circles of upper rotor rings arranged on the top surface of the partition plate, and the clearance value of an upper rotor dispersion groove is greater than that of a lower rotor dispersion groove; the lower stator is provided with a plurality of rings of lower stator rings, the lower stator rings and the lower rotor rings of the dispersing rotor are arranged at intervals, the upper stator is provided with a plurality of rings of upper stator rings, and the upper stator rings and the upper rotor rings of the dispersing rotor are arranged at intervals. The utility model discloses have still less part, the inside runner structure is simpler, has shortened the flow, and dispersion efficiency is higher, and the dispersion effect is better, and the flow resistance is littleer, and it is more smooth and easy to flow, and the loss of flow is littleer, also more does benefit to liquid heat dissipation, and the last rotor dispersion tank of upper dispersion district has great clearance value, does benefit to improvement dispersion efficiency and dispersion effect.

Description

Liquid dispersion structure of powder-liquid mixing device

Technical Field

The utility model belongs to the technical field of powder liquid mixing apparatus technique and specifically relates to a powder liquid mixing arrangement's liquid dispersion structure.

Background

The powder-liquid mixing equipment is a material mixing equipment which utilizes the high-speed rotation of a rotor and generates shearing force between the rotor and a stator to realize material dispersion and mixing so as to form high-concentration and high-viscosity slurry.

Chinese utility model patent 202121776836.2 discloses a powder liquid mixes machine, including the main casing body, liquid dispersion device, powder conveyor and compounding device, in liquid dispersion device disperses the liquid mixture of treating in the liquid dispersion district and makes the liquid mixture of treating after the dispersion get into powder liquid mixing district, in powder conveyor will treat that mixed powder carries the entering powder liquid mixing district, treat that mixed liquid and treat that mixed powder passes through the compounding device and mix the back and discharge. Such a powder-liquid mixer has the following problems: the liquid dispersing device adopts two layers of shearing devices (a coarse shearing device and a fine shearing device) which are arranged in a stacked mode to disperse liquid, each layer of shearing device respectively comprises a dispersing rotor and a dispersing stator which are in a single-layer structure and are in rotating fit, after the liquid is input from a liquid inlet, the two dispersing rotors and the two dispersing stators need to be bypassed, namely the liquid needs to move along a channel which is approximately in a shape like a Chinese character 'gong' and is arranged in a powder conveying device from inside to outside → outside, and on one hand, the channel is complex in structure, long in flow path, relatively low in dispersing efficiency and relatively poor in dispersing effect; on the other hand, in the flowing process of the liquid in the arched flow channel, at least five times of steering is needed, the flow resistance is large, the flowing is not smooth enough, the flowing loss is large, the liquid heat dissipation is not facilitated, the liquid temperature is high, and the control of the pulping temperature is not facilitated.

SUMMERY OF THE UTILITY MODEL

The applicant aims at the defects of the existing powder-liquid mixing machine, provides a powder-liquid mixing device with a reasonable structure, simplifies the structure, shortens the flow, improves the dispersion efficiency and the dispersion effect, cools the liquid through a cooling structure, and is favorable for controlling the pulping temperature.

The utility model discloses the technical scheme who adopts as follows:

a liquid dispersing structure of a powder-liquid mixing device comprises a dispersing rotor, a lower stator and an upper stator, wherein the dispersing rotor is divided into an upper layer matching structure and a lower layer matching structure by a partition plate, the lower layer matching structure is in rotating fit with the lower stator, and the upper layer matching structure is in rotating fit with the upper stator; the lower-layer matching structure of the dispersing rotor comprises a plurality of circles of lower rotor rings arranged on the bottom surface of the partition plate, a lower rotor ring groove is formed between every two adjacent circles of lower rotor rings, and a plurality of lower rotor dispersing grooves are formed in each circle of lower rotor ring; the upper-layer matching structure of the dispersing rotor comprises a plurality of upper rotor rings arranged on the top surface of the partition plate, an upper rotor ring groove is formed between every two adjacent circles of upper rotor rings, and a plurality of upper rotor dispersing grooves are formed in each upper rotor ring; the gap value of the upper rotor dispersing groove is larger than that of the lower rotor dispersing groove; the lower stator is provided with a plurality of circles of lower stator rings, a lower stator ring groove is arranged between every two adjacent circles of lower stator rings, and each circle of lower stator ring is provided with a plurality of lower stator dispersing grooves; the lower stator ring and a lower rotor ring of the dispersion rotor are arranged at intervals, the lower stator ring is inserted into a lower rotor ring groove, and the lower rotor ring is inserted into a lower stator ring groove; the upper stator is provided with a plurality of upper stator rings, an upper stator ring groove is arranged between every two adjacent upper stator rings, and each upper stator ring is provided with a plurality of upper stator dispersing grooves; the upper stator ring and the upper rotor ring of the dispersion rotor are arranged at intervals, the upper stator ring is inserted into the upper rotor ring groove, and the upper rotor ring is inserted into the upper stator ring groove.

As a further improvement of the technical scheme:

the gap value of the lower stator dispersion groove is equivalent to that of the lower rotor dispersion groove, and the gap value of the upper stator dispersion groove is equivalent to that of the upper rotor dispersion groove.

The lower stator dispersing groove, the upper rotor dispersing groove, the lower stator dispersing groove and the upper stator dispersing groove are obliquely arranged at a certain angle with the radial direction.

The lower rotor dispersing groove inclines forwards from outside to inside towards the rotating advancing direction of the dispersing rotor; the inclination direction of the upper rotor dispersing groove is opposite to that of the lower rotor dispersing groove; the inclination direction of the lower stator dispersion groove is opposite to that of the lower stator dispersion groove; the inclination direction of the upper stator dispersion groove is opposite to that of the upper rotor dispersion groove.

The lower rotor dispersing groove and/or the upper rotor dispersing groove and/or the lower stator dispersing groove and/or the upper stator dispersing groove are/is arranged along the radial direction.

A plurality of lower rotor blades are arranged on the bottom surface of the partition plate of the dispersing rotor and positioned on the inner side of the lower rotor ring at the innermost circle, and the lower rotor blades are arc-shaped blades; an upper flow guide surface is arranged on the top surface of the partition plate and positioned on the inner side of the rotor ring on the innermost ring, and the upper flow guide surface is an inwards concave arc surface.

A dispersing cavity is formed in the lower stator, the dispersing rotor is inserted into the dispersing cavity, the upper stator is connected to the top end of the lower stator, and an upper stator ring of the upper stator extends into the dispersing cavity.

A lower cooling cavity is formed in the bottom wall and the peripheral wall of the lower stator, and a cooling liquid inlet and a cooling liquid outlet communicated with the lower cooling cavity are formed in the peripheral wall; an upper cooling cavity is formed in the top wall of the upper stator, and a cooling liquid inlet and a cooling liquid outlet communicated with the upper cooling cavity are formed in the top wall.

The lower cooling cavity is internally provided with a spiral sheet, and a spiral cooling liquid flow passage is formed in the lower cooling cavity.

A plurality of lower rotor teeth are arranged on each circle of lower rotor ring, and a lower rotor dispersing groove is formed by gaps between adjacent lower rotor teeth; a plurality of upper rotor teeth are arranged on each upper rotor ring, and gaps between adjacent upper rotor teeth form upper rotor dispersing grooves; a plurality of lower stator teeth are arranged on each circle of lower stator ring, and gaps between adjacent lower stator teeth form lower stator dispersing grooves; a plurality of upper stator teeth are arranged on each upper stator ring, and gaps between adjacent upper stator teeth form upper stator dispersing grooves.

The beneficial effects of the utility model are as follows:

(1) The utility model adopts a double-layer structure dispersion rotor to be matched with the lower stator and the upper stator to realize layered dispersion, liquid only needs to go through the C-shaped flow channel trend of inner → outer → inner in the liquid dispersion area, and compared with the existing single-layer structure, the liquid dispersion rotor has fewer parts, the structure of the inner flow channel is simpler, the flow is shortened, the dispersion efficiency is higher, and the dispersion effect is better; in addition, in the flowing process of the liquid in the C-shaped flow channel, only three times of steering are needed, the flow resistance is smaller, the flowing is smoother, the flowing loss is smaller, the liquid heat dissipation is facilitated, the control of the pulping temperature is facilitated, and the characteristics of the pulp are ensured; the upper rotor dispersing groove of the upper layer dispersing area has a larger gap value, so that the liquid in the layer can have a relatively larger circulation space while the liquid is fully dispersed in the layer, the liquid can be pushed inwards to the upper liquid outlet channel, and the dispersing efficiency and the dispersing effect are further improved;

(2) The lower rotor dispersion tank of the dispersion rotor inclines forwards towards the rotating forward direction of the dispersion rotor, and when the dispersion rotor rotates, the lower-layer dispersion area can increase the centrifugal force effect on liquid and generate an outwards-pushing acting force on the liquid, so that the liquid conveyed by the inner-side lower liquid inlet channel is dispersed and pushed to the outer side from inside to outside, and the dispersion efficiency and the dispersion effect are improved. The upper rotor dispersing groove inclines backwards in the direction opposite to the rotating forward direction, when the dispersing rotor rotates, the upper rotor dispersing groove can generate an inward pushing acting force on liquid, the acting force is opposite to the direction of an outward centrifugal force generated by the rotation of the liquid, and the action of a part of liquid centrifugal force can be counteracted, so that the action of the centrifugal force of an upper dispersing area on the liquid is reduced, the liquid conveyed by a lower dispersing area on the outer side is pushed to an upper liquid outlet channel on the inner side from the outside to the inside, the dispersing efficiency and the dispersing effect are further improved, and the action of the upper rotor dispersing groove is opposite to the direction of the liquid centrifugal force, the liquid can stay in the upper dispersing area for a relatively longer time, the liquid can be dispersed more fully, and the dispersing effect is better;

(3) The inclination direction of the lower stator dispersion groove is opposite to that of the lower rotor dispersion groove, and the inclination direction of the upper stator dispersion groove is opposite to that of the upper rotor dispersion groove; the flow paths of the liquid in the lower-layer dispersing area and the upper-layer dispersing area are more tortuous, and the liquid obtains a relatively longer flow path and stays for a longer time in a limited space, so that the liquid is more sufficiently dispersed, and the dispersing effect is better.

(4) The lower cooling chamber cools, dispels the heat to the liquid in the dispersion intracavity from bottom and circumference side, also can dispel the heat to the liquid in the feed liquor intracavity simultaneously, goes up the cooling chamber and cools off, dispels the heat to the liquid in the dispersion intracavity from the top side, also can dispel the heat to the liquid in the hybrid chamber simultaneously, makes liquid keep in lower temperature range, does benefit to the control of slurrying temperature, guarantees the thick liquids characteristic. The lower cooling cavity is internally provided with a spiral cooling liquid flow channel, the flowing area of the cooling liquid is larger, the cooling area is larger, and the cooling effect is better.

Drawings

Fig. 1 is a schematic structural diagram of the present invention, in which the dashed lines indicate the trend of liquid, the two-dot chain lines indicate the trend of powder, and the two-dot chain lines indicate the trend of mixing material.

Fig. 2 isbase:Sub>A sectional view of sectionbase:Sub>A-base:Sub>A in fig. 1.

Fig. 3 is a cross-sectional view of section B-B of fig. 1, with arrows indicating the direction of rotation of the dispersion rotor.

Fig. 4 is a cross-sectional view of section C-C of fig. 1, with arrows indicating the direction of rotation of the dispersion rotor.

Fig. 5 is a cross-sectional view of section D-D in fig. 1.

Fig. 6 is an enlarged view of a portion E in fig. 1.

Fig. 7 is a perspective view of the divergent rotor from the bottom view.

Fig. 8 is a perspective view of a dispersed rotor from a top view.

Fig. 9 is a cross-sectional view of a longitudinal section of the lower stator.

Fig. 10 is a cross-sectional view of a transverse section of the upper stator.

Fig. 11 is a perspective view of the mixing rotor.

Fig. 12 is a perspective view of the upper cover from the bottom.

Fig. 13 is a cross-sectional view of a longitudinal section of the sleeve.

In the figure: 100. a liquid inlet zone; 200. a liquid dispersion zone; 300. a mixing zone; 400. a powder inlet area;

1. a main shaft; 2. liquid inlet sleeve; 21. a liquid inlet cavity; 22. a liquid inlet; 3. a dispersion rotor; 31. a partition plate; 32. a lower rotor ring; 321. lower rotor teeth; 322. a lower rotor dispersion tank; 323. a lower rotor dispersion tank central line; 33. a lower rotor ring groove; 34. an upper rotor ring; 341. upper rotor teeth; 342. an upper rotor dispersion tank; 343. the central line of the upper rotor dispersing groove; 35. an upper rotor ring groove; 36. a lower rotor blade; 37. an upper flow guide surface; 4. a lower stator; 41. a dispersion chamber; 42. a bottom wall; 43. an outer peripheral wall; 44. a lower stator ring; 441. a lower stator tooth; 442. a lower stator dispersion groove; 443. a lower stator dispersion groove center line; 45. a lower stator ring groove; 46. a lower cooling chamber; 47. a spiral sheet; 5. an upper stator; 51. a top wall; 52. an upper stator ring; 521. an upper stator tooth; 522. an upper stator dispersion groove; 523. an upper stator dispersion groove center line; 53. an upper stator ring groove; 54. an upper cooling chamber; 6. a mixing sleeve; 61. a mixing chamber; 62. a discharge port; 7. a mixing rotor; 71. a base plate; 72. a liquid inlet; 73. a mixing blade; 74. a blade groove; 8. an upper cover; 81. a convex ring; 82. an overflowing hole; 9. a feeding cylinder; 91. a powder inlet cavity; 10. powder scattering head; 11. a powder conveying rotor; 12. a shaft sleeve; 121. a variable diameter cylinder part; 122. a straight tube portion; 123. a lower flow guide surface; 124. a counter bore; 13. a bearing cavity component; 14. pressing a plate; 15. a shaft seal member; 16. a baffle; 161. a convex tip part; 162. an opening part; 17. a lower liquid inlet channel; 18. an upper liquid outlet channel.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, the utility model discloses from supreme arranging into liquid district 100, liquid dispersion district 200, mixed area 300 in proper order and advancing powder district 400 down, main shaft 1 wears to establish on advancing liquid district 100, liquid dispersion district 200, mixed area 300 and advancing powder district 400, and on main shaft 1 lower extreme was connected to bearing chamber part 13, bearing chamber part 13 top was fixed with clamp plate 14, was provided with shaft seal part 15 between clamp plate 14 and the main shaft 1 and seals bearing chamber part 13 inside.

As shown in fig. 1, the liquid inlet area 100 is provided with a liquid inlet sleeve 2, and the liquid inlet sleeve 2 is connected to the top end of the bearing cavity part 13 and sleeved on the periphery of the pressure plate 14. The liquid dispersion region 200 is provided with a dispersion rotor 3, a lower stator 4 and an upper stator 5, and the dispersion rotor 3 is rotatably fitted with the lower stator 4 and the upper stator 5, respectively. The mixing area 300 is provided with a mixing sleeve 6, a mixing rotor 7 and an upper cover 8, the mixing sleeve 6 is sleeved on the periphery of the mixing rotor 7, and the upper cover 8 is covered on the top sides of the mixing sleeve 6 and the mixing rotor 7. The powder inlet area 400 is provided with a feeding cylinder 9, a powder scattering head 10 and a powder conveying rotor 11, a powder inlet cavity 91 is formed in the feeding cylinder 9, the powder scattering head 10 and the powder conveying rotor 11 are arranged in the powder inlet cavity 91, and the powder scattering head 10 is located above the powder conveying rotor 11. The dispersing rotor 3, the mixing rotor 7, the powder dispersing head 10 and the powder conveying rotor 11 are fixedly connected to the main shaft 1 and driven by the main shaft 1 to rotate at a high speed. A shaft sleeve 12 is sleeved on the main shaft 1 and positioned on the inner sides of the liquid inlet sleeve 2 and the lower stator 4, and a lower liquid inlet channel 17 is arranged between the shaft sleeve 12 and the lower stator 4; an upper liquid outlet channel 18 is arranged between the upper stator 5 and the main shaft 1.

As shown in fig. 2, a liquid inlet cavity 21 is formed in the liquid inlet sleeve 2, and a liquid inlet 22 communicated with the liquid inlet cavity 21 is formed in the liquid inlet sleeve 2; the liquid inlet cavity 21 is communicated with the lower liquid inlet channel 17. A guide plate 16 is arranged in a liquid inlet cavity 21 of the liquid inlet sleeve 2, and as shown in fig. 6, the guide plate 16 is integrally formed on the pressing plate 14; in other embodiments, the baffle 16 can be separately machined and then assembled to the platen 14. As shown in fig. 2, the baffle 16 is a herringbone plate, and includes a convex tip 161 and two symmetrical opening portions 162; the convex tip part 161 is a V-shaped plate, and two side edges of the convex tip part are concave circular arcs; the opening part 162 is a convex arc-shaped plate which is coaxially coated and arranged on the periphery of the main shaft 1. As shown in fig. 2 and 6, the flow guiding plate 16 is convexly disposed on the liquid inlet side of the liquid inlet cavity 21, the convex tip portion 161 of the flow guiding plate faces the liquid inlet 22, the flow guiding plate 16 can guide the inlet liquid, and after the liquid enters from the liquid inlet 22, the liquid is divided into two parts by the convex tip portion 161 and guided to the whole cavity of the liquid inlet cavity 21 through the opening portions 162 on both sides, so that the liquid flows more smoothly, the flow resistance is reduced, the liquid in the liquid inlet cavity 21 is distributed more uniformly, and the subsequent liquid dispersing effect is improved more easily; moreover, the guide plate 16 blocks the liquid inlet side, and can also play a certain role in blocking and buffering the liquid inlet, so that the liquid inlet is prevented from directly impacting the main shaft 1 and the shaft seal part 15 and further permeating the shaft seal part 15 to influence the shaft seal effect. As shown in fig. 2 and 6, the baffle 16 is positioned outside the sleeve 12; as shown in fig. 6, the height of the protrusion of the flow guide plate 16 is equal to the height of the bottom side of the shaft sleeve 12, or slightly higher than the bottom side of the shaft sleeve 12, that is, the top surface of the flow guide plate 16 is flush with the bottom side of the shaft sleeve 12, or slightly higher than the bottom side of the shaft sleeve 12, so that the liquid entering from the liquid inlet 22 can directly impact on the shaft sleeve 12, thereby preventing the liquid from impacting on the shaft seal component 15, and ensuring the sealing reliability of the shaft seal component 15.

As shown in fig. 1 and 6, the lower part of the shaft sleeve 12 is positioned in the liquid inlet cavity 21, the upper part of the shaft sleeve 12 extends into the lower stator 4, and the annular channel between the shaft sleeve 12 and the lower stator 4 forms a lower liquid inlet channel 17. As shown in fig. 13, the sleeve 12 is a flared tube having a small top and a large bottom, and includes a diameter-variable tube portion 121 at the bottom and a straight tube portion 122 at the top, and the straight tube portion 122 is connected to a small-diameter end of the diameter-variable tube portion 121. The outer peripheral surface of the reducing cylinder part 121 is an inward concave arc surface to form a lower flow guide surface 123, and the outer diameter of the reducing cylinder part gradually decreases from bottom to top; as shown in fig. 1 and 6, the lower portion of the reducing cylinder 121 is located in the liquid inlet cavity 21, the lower guide surface 123 on the periphery of the reducing cylinder guides the liquid in the liquid inlet cavity 21, and the liquid in the liquid inlet cavity 21 turns to enter the lower liquid inlet channel 17 along the lower guide surface 123, so that the flow resistance of the liquid is reduced, the liquid flows more smoothly, and the flow loss of the liquid is reduced. As shown in fig. 13, a counterbore 124 is formed in the center of the lower portion of the shaft sleeve 12, as shown in fig. 1 and fig. 6, the upper end of the shaft seal component 15 is inserted into the counterbore 124, that is, the periphery of the upper end of the shaft seal component 15 is sleeved on the lower portion of the shaft sleeve 12, so that a protection effect can be provided for the shaft seal component 15, the shaft seal component 15 is protected by matching with the guide plate 16, the liquid is prevented from directly impacting the shaft seal component 15 and further permeating the shaft seal component 15 to influence the sealing effect, and the sealing reliability of the shaft seal component 15 is improved.

As shown in fig. 1, the dispersing rotor 3, the lower stator 4 and the upper stator 5 are all disk-shaped structures. A dispersing cavity 41 is formed in the lower stator 4, the dispersing rotor 3 is inserted into the dispersing cavity 41, the upper stator 5 is connected to the top end of the lower stator 4, and the lower portion of the upper stator 5 extends into the dispersing cavity 41. The dispersing rotor 3 is divided into an upper layer matching structure and a lower layer matching structure by a middle partition plate 31, the lower layer matching structure is in rotating fit with the lower stator 4, the upper layer matching structure is in rotating fit with the upper stator 5, and the dispersing cavity 41 is divided into a lower layer dispersing area and an upper layer dispersing area by the partition plate 31. The utility model discloses a bilayer structure's dispersion rotor 3 cooperates with lower stator 4, upper stator 5 simultaneously and realizes the layering dispersion, as shown in fig. 1, liquid only need in liquid dispersion district 200 via interior → outer → interior "C" font runner trend, compare with current monolayer structure, have less parts, the interior runner structure is simpler, has shortened the flow, dispersion efficiency is higher, dispersion effect is better; in addition, in the flowing process of the liquid in the C-shaped flow channel, only three turns are needed, so that the flow resistance is smaller, the flowing is smoother, the flowing loss is smaller, the liquid heat dissipation is facilitated, the control of the pulping temperature is facilitated, and the characteristics of the pulp are ensured.

As shown in fig. 7 and 8, the bottom surface of the partition plate 31 of the dispersing rotor 3 is vertically provided with a plurality of coaxial lower rotor rings 32, and a lower rotor ring groove 33 is formed between two adjacent lower rotor rings 32. Each circle of lower rotor ring 32 comprises a plurality of lower rotor teeth 321 which are uniformly distributed along the circumferential direction, and a lower rotor dispersing groove 322 is formed between every two adjacent lower rotor teeth 321; as shown in fig. 3, in this embodiment, each lower rotor dispersing groove 322 is not formed along the radial direction, but is formed at an angle with the radial direction and inclined to one side, and the central line 323 of the lower rotor dispersing groove inclines forwards from outside to inside towards the rotating forward direction of the dispersing rotor 3, so that when the dispersing rotor 3 rotates, the lower layer dispersing area can increase the centrifugal force acting on the liquid and generate an outward-pushing acting force on the liquid, which is beneficial to disperse and push the liquid conveyed from the inner lower liquid inlet channel 17 to the outside from inside to outside, and improves the dispersing efficiency and the dispersing effect. As shown in fig. 7 and 8, several circles of coaxial upper rotor rings 34 are vertically and upwardly arranged on the top surface of the partition plate 31, and an upper rotor ring groove 35 is formed between two adjacent circles of upper rotor rings 34. Each upper rotor ring 34 comprises a plurality of upper rotor teeth 341 uniformly distributed along the circumferential direction, and upper rotor dispersing grooves 342 are formed between adjacent upper rotor teeth 341; as shown in fig. 4, each upper rotor dispersing groove 342 is also formed at a certain angle with the radial direction and is obliquely arranged, the oblique direction of the upper rotor dispersing groove 342 is opposite to the oblique direction of the lower rotor dispersing groove 322, the central line 343 of the upper rotor dispersing groove is inclined backwards from the outside to the inside in the direction opposite to the rotating forward direction of the dispersing rotor 3, when the dispersing rotor 3 rotates, the upper rotor dispersing groove 342 generates an inward pushing acting force on the liquid, the acting force is opposite to the outward centrifugal force generated by the liquid rotation, and the action of a part of the liquid centrifugal force is counteracted, so that the centrifugal force action of the upper dispersing area on the liquid is reduced, the liquid conveyed from the outer lower dispersing area is favorably pushed to the inner upper liquid outlet channel 18 from the outside to the inside, the dispersing efficiency and the dispersing effect are further improved, and the acting force of the upper rotor dispersing groove 342 is opposite to the direction of the layer of the liquid centrifugal force, and the liquid stays in the upper dispersing area for a relatively longer time, so that the liquid is more sufficiently dispersed, and the dispersing effect is better; go up rotor dispersion groove 342 clearance value and be greater than rotor dispersion groove 322 clearance value down, the last rotor dispersion groove 342 of upper dispersion district has great clearance value, when guaranteeing that liquid is fully dispersed on this layer, also can make this layer of liquid have relatively great circulation space, does benefit to liquid inwards to impel to go out liquid channel 18, further improves dispersion efficiency and dispersion effect. As shown in fig. 3 and 7, a plurality of lower rotor blades 36 are arranged on the bottom surface of the partition plate 31 and inside the innermost lower rotor ring 32, the lower rotor blades 36 are arc-shaped blades, and the lower rotor blades 36 can further increase the centrifugal force to push the liquid in the lower dispersion area from inside to outside, and can push the liquid in the central part of the dispersion rotor 3 out of the air to prevent a liquid dead zone in the part. As shown in fig. 1 and 8, an upper diversion surface 37 is disposed on the top surface of the partition 31 and on the inner side of the innermost rotor ring 34, the upper diversion surface 37 is an inward concave arc surface, the outer diameter of the upper diversion surface is gradually reduced from bottom to top, the upper diversion surface 37 conducts diversion on the liquid in the upper dispersion area, the liquid in the upper dispersion area turns to enter the upper liquid outlet channel 18 along the upper diversion surface 37, the flow resistance of the liquid is reduced, the liquid flows more smoothly, and the flow loss of the liquid is reduced.

As shown in fig. 9, the dispersion chamber 41 of the lower stator 4 has a bottom wall 42 at the bottom and an outer peripheral wall 43 in the circumferential direction. A plurality of coaxial lower stator rings 44 are vertically and upwardly arranged on the upper side surface of the bottom wall 42, and a lower stator ring groove 45 is formed between every two adjacent lower stator rings 44; as shown in fig. 1 and 3, the lower stator ring 44 is spaced apart from the lower rotor ring 32 of the dispersing rotor 3, the lower stator ring 44 is inserted into the lower rotor ring groove 33, and the lower rotor ring 32 is inserted into the lower stator ring groove 45. As shown in fig. 3, each circle of the lower stator ring 44 includes a plurality of lower stator teeth 441 uniformly distributed along the circumferential direction, a lower stator dispersion groove 442 is formed between adjacent lower stator teeth 441, and the gap value of the lower stator dispersion groove 442 is equivalent to the gap value of the lower stator dispersion groove 322; each lower stator dispersing groove 442 is also obliquely arranged at a certain angle with the radial direction, the oblique direction of the central line 443 of the lower stator dispersing groove is opposite to the oblique direction of the central line 323 of the lower rotor dispersing groove, the flow path of the liquid in the lower dispersing area between the lower stator dispersing groove 442 and the lower rotor dispersing groove 322 is more tortuous, the liquid obtains a relatively longer flow path in a limited space and stays for a longer time, so that the liquid is dispersed more fully, and the dispersing effect is better.

As shown in fig. 1 and 9, a lower cooling cavity 46 is formed in the bottom wall 42 and the outer peripheral wall 43 of the lower stator 4, a cooling liquid inlet and a cooling liquid outlet communicated with the lower cooling cavity 46 are formed in the outer peripheral wall 43, the cooling liquid enters the lower cooling cavity 46 from the inlet and flows out from the outlet, the lower cooling cavity 46 cools and dissipates heat of the liquid in the dispersion cavity 41 from the bottom and the circumferential side, and meanwhile, the liquid in the liquid inlet cavity 21 can also be dissipated heat, so that the liquid is kept in a lower temperature range, the control of the pulping temperature is facilitated, and the characteristics of the pulp are ensured. Be provided with flight 47 in the lower cooling chamber 46, form spiral coolant liquid runner in lower cooling chamber 46, the area that the coolant liquid flowed through is bigger, and cooling area is bigger, and the cooling effect is better.

As shown in fig. 1 and 10, a top wall 51 of the upper stator 5 is connected to the top surface of the lower stator 4, a plurality of coaxial upper stator rings 52 are vertically arranged downward on the lower side surface of the top wall 51, the upper stator rings 52 extend into the dispersion chamber 41, and an upper stator ring groove 53 is formed between two adjacent upper stator rings 52; as shown in fig. 4, the upper stator ring 52 is disposed at a distance from the upper rotor ring 34 of the dispersing rotor 3, the upper stator ring 52 is inserted into the upper rotor ring groove 35, and the upper rotor ring 34 is inserted into the upper stator ring groove 53. As shown in fig. 3, each upper stator ring 52 includes a plurality of upper stator teeth 521 uniformly distributed along the circumferential direction, an upper stator dispersing groove 522 is formed between adjacent upper stator teeth 521, and the gap value of the upper stator dispersing groove 522 is equivalent to that of the upper rotor dispersing groove 342; each upper stator dispersing groove 522 is also obliquely arranged at a certain angle with the radial direction, the oblique direction of the central line 523 of the upper stator dispersing groove is opposite to that of the central line 343 of the upper rotor dispersing groove, the flow path of the liquid in the upper-layer dispersing area between the upper stator dispersing groove 522 and the upper rotor dispersing groove 342 is more tortuous, the liquid obtains a relatively longer flow path in a limited space and stays for a longer time, so that the liquid is dispersed more fully, and the dispersing effect is better. As shown in fig. 10, an upper cooling chamber 54 is arranged in the top wall 51, a cooling liquid inlet and a cooling liquid outlet communicated with the upper cooling chamber 54 are arranged on the top wall 51, the cooling liquid enters the upper cooling chamber 54 from the inlet and flows out from the outlet, the upper cooling chamber 54 cools and dissipates the heat of the liquid in the dispersion chamber 41 from the top side, and meanwhile the liquid in the mixing chamber 61 can be dissipated, so that the heat dissipation effect is better, the liquid is kept in a lower temperature range, the control of the pulping temperature is facilitated, and the characteristics of the pulp are ensured.

As shown in fig. 1, a mixing chamber 61 is arranged in the mixing sleeve 6, and a discharge port 62 communicated with the mixing chamber 61 is arranged on the mixing sleeve 6; the mixing chamber 61 is communicated with the upper liquid outlet channel 18. The mixing rotor 7 is inserted in the mixing chamber 61.

As shown in fig. 11, the mixing rotor 7 includes a horizontal bottom plate 71, a liquid inlet 72 is opened on the bottom plate 71, and as shown in fig. 1, the liquid inlet 72 communicates the upper liquid outlet channel 18 and the mixing chamber 61. As shown in fig. 11, a plurality of arc-shaped mixing blades 73 are further provided on the bottom plate 71 of the mixing rotor 7, and blade grooves 74 are provided on the mixing blades 73, and as shown in fig. 5, the blade grooves 74 of all the mixing blades 73 are located on the same circumference coaxial with the main shaft 1.

As shown in fig. 12, a ring of protruding ring 81 vertically extends downward from the lower side of the upper cover 8, and a plurality of through holes 82 are formed in the circumferential wall surface of the protruding ring 81. As shown in fig. 5, the convex ring 81 corresponds to the vane groove 74 of the mixing rotor 7, the convex ring 81 is engaged in the vane groove 74, the liquid and powder are held by the convex ring 81 inside thereof and stirred and mixed by the rotating mixing vane 73, and then flow out through the overflowing hole 82, and the mixing is more sufficient and the mixing effect is better.

When the utility model is used in practice, the main shaft 1 is driven by the driving mechanism to rotate at high speed, thereby driving the dispersion rotor 3, the mixing rotor 7, the powder scattering head 10 and the powder conveying rotor 11 to rotate at high speed; the liquid enters the liquid inlet cavity 21 from the liquid inlet 22, turns to enter the liquid dispersing area 200 through the lower liquid inlet channel 17, is dispersed in the lower dispersing area and the upper dispersing area in sequence, and then turns to enter the mixing cavity 61 through the upper liquid outlet channel 18; the separation enters from a feeding cylinder 9, is scattered by a powder scattering head 10 and is conveyed to a mixing cavity 61 through a powder conveying rotor 11; the liquid and the powder are uniformly mixed by the mixing rotor 7 in the mixing cavity 61 and then are output from the discharge port 62.

The above description is illustrative of the present invention and is not intended to limit the present invention, and the present invention may be modified in any manner without departing from the spirit of the present invention. For example, in other embodiments, the lower rotor dispersion groove 322 and/or the upper rotor dispersion groove 342 of the dispersion rotor 3 and/or the lower stator ring groove 45 of the lower stator 4 and/or the upper stator dispersion groove 522 of the lower stator 4 may also be opened in the radial direction, so that the liquid can pass through the gap of the groove body more easily, the liquid flow resistance is smaller, and the flow loss is smaller.

Claims (10)

1. A liquid dispersion structure of a powder-liquid mixing device comprises a dispersion rotor (3), a lower stator (4) and an upper stator (5), wherein the dispersion rotor (3) is divided into an upper layer of matching structure and a lower layer of matching structure by a partition plate (31), the lower layer of matching structure is rotationally matched with the lower stator (4), and the upper layer of matching structure is rotationally matched with the upper stator (5); the method is characterized in that: the lower-layer matching structure of the dispersing rotor (3) comprises a plurality of circles of lower rotor rings (32) arranged on the bottom surface of the partition plate (31), a lower rotor ring groove (33) is formed between every two adjacent circles of lower rotor rings (32), and a plurality of lower rotor dispersing grooves (322) are formed in each circle of lower rotor rings (32); the upper-layer matching structure of the dispersing rotor (3) comprises a plurality of circles of rotor rings (34) arranged on the top surface of the partition plate (31), an upper rotor ring groove (35) is formed between every two adjacent circles of rotor rings (34), and a plurality of upper rotor dispersing grooves (342) are formed in each circle of rotor rings (34); the gap value of the upper rotor dispersion groove (342) is larger than that of the lower rotor dispersion groove (322);

a plurality of circles of lower stator rings (44) are arranged on the lower stator (4), a lower stator ring groove (45) is arranged between every two adjacent circles of lower stator rings (44), and a plurality of lower stator dispersing grooves (442) are formed in each circle of lower stator rings (44); the lower stator ring (44) and a lower rotor ring (32) of the dispersion rotor (3) are arranged at intervals, the lower stator ring (44) is inserted into the lower rotor ring groove (33), and the lower rotor ring (32) is inserted into the lower stator ring groove (45);

the upper stator (5) is provided with a plurality of upper stator rings (52), an upper stator ring groove (53) is arranged between every two adjacent upper stator rings (52), and each upper stator ring (52) is provided with a plurality of upper stator dispersing grooves (522); the upper stator ring (52) and the upper rotor ring (34) of the dispersion rotor (3) are arranged at intervals, the upper stator ring (52) is inserted into the upper rotor ring groove (35), and the upper rotor ring (34) is inserted into the upper stator ring groove (53).

2. The liquid dispersing structure of a powder-liquid mixing apparatus according to claim 1, wherein: the gap value of the lower stator dispersion groove (442) corresponds to the gap value of the lower rotor dispersion groove (322), and the gap value of the upper stator dispersion groove (522) corresponds to the gap value of the upper rotor dispersion groove (342).

3. The liquid dispersing structure of a powder-liquid mixing apparatus according to claim 1, wherein: the lower rotor dispersion groove (322), the upper rotor dispersion groove (342), the lower stator dispersion groove (442) and the upper stator dispersion groove (522) are obliquely arranged at a certain angle with the radial direction.

4. The liquid dispersing structure of a powder-liquid mixing apparatus according to claim 3, wherein: the lower rotor dispersing groove (322) inclines forwards from outside to inside towards the rotating advancing direction of the dispersing rotor (3); the inclination direction of the upper rotor dispersion groove (342) is opposite to that of the lower rotor dispersion groove (322); the inclination direction of the lower stator dispersion groove (442) is opposite to that of the lower rotor dispersion groove (322); the upper stator dispersion groove (522) is inclined in the opposite direction to the upper rotor dispersion groove (342).

5. The liquid dispersing structure of a powder-liquid mixing apparatus according to claim 1, wherein: the lower rotor dispersion groove (322), and/or the upper rotor dispersion groove (342), and/or the lower stator dispersion groove (442), and/or the upper stator dispersion groove (522) are opened in the radial direction.

6. The liquid dispersing structure of a powder-liquid mixing apparatus according to claim 1, wherein: a plurality of lower rotor blades (36) are arranged on the bottom surface of the partition plate (31) of the dispersing rotor (3) and positioned on the inner side of the lower rotor ring (32) at the innermost circle, and the lower rotor blades (36) are arc-shaped blades; an upper flow guide surface (37) is arranged on the top surface of the partition plate (31) and positioned on the inner side of the rotor ring (34) on the innermost ring, and the upper flow guide surface (37) is an inwards concave arc surface.

7. The liquid dispersing structure of a powder-liquid mixing apparatus according to claim 1, wherein: a dispersing cavity (41) is formed in the lower stator (4), the dispersing rotor (3) is inserted into the dispersing cavity (41), the upper stator (5) is connected to the top end of the lower stator (4), and an upper stator ring (52) of the upper stator (5) extends into the dispersing cavity (41).

8. The liquid dispersing structure of a powder-liquid mixing apparatus according to claim 1, wherein: a lower cooling cavity (46) is formed in the bottom wall (42) and the peripheral wall (43) of the lower stator (4), and a cooling liquid inlet and a cooling liquid outlet communicated with the lower cooling cavity (46) are formed in the peripheral wall (43); an upper cooling cavity (54) is formed in the top wall (51) of the upper stator (5), and a cooling liquid inlet and a cooling liquid outlet communicated with the upper cooling cavity (54) are formed in the top wall (51).

9. The liquid dispersing structure of a powder-liquid mixing apparatus according to claim 8, wherein: a spiral sheet (47) is arranged in the lower cooling cavity (46), and a spiral cooling liquid flow channel is formed in the lower cooling cavity (46).

10. The liquid dispersing structure of a powder-liquid mixing apparatus according to claim 1, wherein: a plurality of lower rotor teeth (321) are arranged on each circle of lower rotor ring (32), and gaps between adjacent lower rotor teeth (321) form lower rotor dispersing grooves (322); a plurality of upper rotor teeth (341) are arranged on each upper rotor ring (34), and gaps between adjacent upper rotor teeth (341) form upper rotor dispersing grooves (342); a plurality of lower stator teeth (441) are arranged on each circle of lower stator ring (44), and gaps between adjacent lower stator teeth (441) form lower stator dispersing grooves (442); a plurality of upper stator teeth (521) are arranged on each upper stator ring (52), and gaps between adjacent upper stator teeth (521) form upper stator dispersion grooves (522).

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