CN218307427U

CN218307427U - Stirring device for pulping machine and pulping machine

Info

Publication number: CN218307427U
Application number: CN202222162067.8U
Authority: CN
Inventors: 汪谢; 杨海伦; 袁超; 戴小兵; 贺杰
Original assignee: Honggong Technology Co ltd
Current assignee: Honggong Technology Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2023-01-17
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses a stirring device for a pulping machine, which comprises a centrifugal impeller, wherein an impeller body of the centrifugal impeller is provided with a plurality of upper blades which are arranged at intervals around the circumference of the impeller body; the impeller body of the centrifugal impeller is also connected with a plurality of lower blades, and the lower blades are positioned right below the impeller body and are arranged at intervals around the circumference of the impeller body; the lower blades extend to the edge of the bottom of the impeller body from inside to outside along the radial direction of the impeller body; the lower blade is provided with a plurality of turbulence through holes. Its stirring efficiency is higher, and has compromise the row of pulping machine and expect the ability. The utility model also discloses a pulper, including frame, axis of rotation and a agitating unit for pulper, the frame has the stirring chamber, the axis of rotation is located the stirring chamber and with the linkage of centrifugal impeller is connected.

Description

Stirring device for pulping machine and pulping machine

Technical Field

The utility model relates to an agitating unit technical field especially relates to an agitating unit and pulping machine for pulping machine.

Background

Currently, with the development of powder technology, more and more ultrafine powders need to be dispersed into a small amount of liquid (liquid, i.e., solvent) to form a slurry with high solid content and high viscosity. However, it is difficult to uniformly mix the slurry having a high solid content and a high viscosity, and thus it is necessary to sufficiently disperse and grind it by a device, thereby improving physical properties of the slurry.

However, the preparation steps based on the slurry are sequentially divided into two steps of mixing and dispersing, and the mixing action is mainly performed in the stirring device. To improve the mixing of the slurry (i.e., to drive the liquid into intimate mixing with the powder solids), prior art mixing devices have focused on the mixing effect, and neglected the ability of the pulper to discharge the slurry (i.e., increased mixing efficiency of the mixing device at the expense of reduced discharge capacity).

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an agitating unit for a pulping machine, the agitating efficiency is higher, and the discharging capability of the pulping machine is also taken into account.

The second object of the present invention is to provide a pulper.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

the stirring device for the pulping machine comprises a centrifugal impeller, wherein an impeller body of the centrifugal impeller is provided with a plurality of upper blades, and the upper blades are arranged at intervals around the circumference of the impeller body; the impeller body of the centrifugal impeller is also connected with a plurality of lower blades, and the lower blades are positioned right below the impeller body and are arranged at intervals around the circumference of the impeller body; the lower blades extend to the edge of the bottom of the impeller body from inside to outside along the radial direction of the impeller body; and a plurality of turbulence through holes are formed in the lower blade.

Further, the lower blades extend outwards from the central through hole of the impeller body.

Further, the bottom of each upper blade is connected with the bottom of one of the lower blades, the bottom of the upper blade extends from the edge of the bottom of the impeller body along the radial direction of the impeller body to form a protruding portion, and the outermost end of the lower blade extends to the position right below the protruding portion, so that a small stirring area is formed between every two adjacent protruding portions.

Further, the plurality of turbulent flow through holes of the lower blade are located at a horizontal side of the small stirring zone.

Furthermore, the impeller body is arranged in a cone structure, and the outer contour of the cross section of the impeller body is gradually enlarged from top to bottom.

Further, the upper blade is of a one-piece structure and extends spirally and obliquely downwards along the circumferential direction of the impeller body.

Furthermore, the stirring device for the pulping machine further comprises a scattering centrifugal wheel body, wherein the scattering centrifugal wheel body is provided with a plurality of cutting rods, and the cutting rods are arranged on the side wall of the scattering centrifugal wheel body at intervals; the scattering centrifugal wheel body is connected to the top of the impeller body.

Further, the scattering centrifugal wheel body is detachably connected with the impeller body; the side wall of the cutting bar has a plurality of sharp edges.

Furthermore, the scattering centrifugal wheel body is arranged in a cone structure, and the outer profile of the cross section of the scattering centrifugal wheel body is gradually enlarged from top to bottom; the cutting rods spirally extend downwards at intervals along the circumferential direction of the scattering centrifugal wheel body to form scattering unit combinations, and the scattering unit combinations are distributed at intervals around the circumferential direction of the scattering centrifugal wheel body;

the diameter of the bottom of the scattering centrifugal wheel body is the same as that of the top of the centrifugal impeller.

The second purpose of the utility model is realized by adopting the following technical scheme:

the pulping machine comprises a frame, a rotating shaft and a stirring device for the pulping machine, wherein the frame is provided with a stirring cavity, and the rotating shaft is arranged in the stirring cavity and is connected with the centrifugal impeller in a linkage manner.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the powder is uniformly distributed to the periphery of the bottom of the impeller body through the upper blades, so that the stirring efficiency of the lower blades on the slurry is improved. Extend to the edge of impeller body's bottom radially from inside to outside along impeller body through designing below blade to make the stirring area of below blade great, in order to guarantee that it remains certain stirring efficiency, and improved its row material ability on the verge. The stirring capacity of the lower blade is improved through the plurality of turbulence holes of the lower blade, so that the reduction of the stirring efficiency is compensated; so for this a agitating unit for pulper has compromise the row's of agitating unit for pulper ability of expecting simultaneously on guaranteeing the basis of stronger stirring efficiency.

Drawings

Fig. 1 is a schematic structural view of a centrifugal impeller of a stirring device for a pulper according to the present invention;

FIG. 2 is another perspective view of the centrifugal impeller of FIG. 1;

FIG. 3 is a schematic view of the connection structure of the breaking centrifugal wheel body and the cutting rod of FIG. 1;

fig. 4 is the structure diagram of the pulping machine of the utility model, wherein, the solid line arrow point line is the flow direction of powder material, and the dotted line arrow point line is the flow direction of thick liquids.

In the figure: 1. a centrifugal impeller; 11. an impeller body; 111. a central through hole; 12. an upper blade; 121. a projection; 13. a lower blade; 131. a turbulent flow through hole; 14. a small agitation zone; 21. scattering the centrifugal wheel body; 22. cutting the rod; 221. sharp edges; 3. a frame; 31. a stirring chamber; 4. a rotating shaft; 5. a circulating pipeline; 6. and (6) flushing the valve.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used herein, "vertical," "horizontal," "left," "right," and similar expressions are for purposes of illustration only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 3 show a stirring device for a pulper according to a preferred embodiment of the present invention, comprising a centrifugal impeller 1. The impeller body 11 of the centrifugal impeller 1 is provided with a plurality of upper blades 12, and the plurality of upper blades 12 are arranged around the impeller body 11 at intervals in the circumferential direction so as to guide the powder material on the impeller body 11 to the bottom of the impeller body 11 through the plurality of upper blades 12. The impeller body 11 of the centrifugal impeller 1 is also connected with a plurality of lower blades 13, and the plurality of lower blades 13 are positioned right below the impeller body 11 and are arranged at intervals around the circumference of the impeller body 11; in this manner, the lower blade 13 may be used to agitate the slurry within the pulping apparatus. Importantly, the lower blade 13 extends to the edge of the bottom of the impeller body 11 from inside to outside along the radial direction of the impeller body 11, so that the stirring area of the lower blade 13 is large, a certain stirring efficiency is ensured to be kept, and the discharging capacity of the lower blade is improved. A plurality of torrent through-holes 131 have been seted up to below blade 13, through add torrent through-hole 131 in below blade 13 to the turbulence degree of reinforcing thick liquids to improve the degree of mixing of liquid solvent and powder material, improve stirring efficiency again promptly.

During operation, liquid solvent and powder material meet and mix and form thick liquids in impeller body 11's bottom, therefore stir thick liquids through below blade 13, then utilize the centrifugal force of motion itself to radially discharge thick liquids to on the basis of guaranteeing stronger stirring efficiency, compromise the row's of agitating unit who is used for the pulper ability of expecting simultaneously.

Obviously, the powder is uniformly distributed around the bottom of the impeller body 11 by the upper blades 12, so as to improve the stirring efficiency of the lower blades 13 to the slurry. Extend to the edge of the bottom of impeller body 11 from inside to outside along impeller body 11's radial through design below blade 13 to make below blade 13's stirring area great, in order to guarantee that it remains certain stirring efficiency, and improved its row material ability on the verge. The stirring capacity of the lower blade 13 is improved through the plurality of turbulence holes of the lower blade 13, so that the reduction of the stirring efficiency is compensated; so for this a agitating unit for pulper has compromise the row's of agitating unit for pulper ability of expecting simultaneously on guaranteeing the basis of stronger stirring efficiency.

In order to further enlarge the stirring ability and the discharging ability of the lower blade 13, it is preferable that the lower blade 13 extends outward from the central through hole 111 of the impeller body 11.

Preferably, the bottom of each upper blade 12 is connected to the bottom of one of the lower blades 13, and the bottom of the upper blade 12 extends from the edge of the bottom of the impeller body 11 in the radial direction of the impeller body 11 to form a protrusion 121, and the outermost end of the lower blade 13 extends to the position right below the protrusion 121, so that a small stirring area 14 is formed between two adjacent protrusions 121. Obviously, two adjacent lower blades 13 and two adjacent protrusions 121 together enclose a semi-closed small stirring area 14, and the bottom of each upper blade 12 is connected with the bottom of one lower blade 13, so that the discharging capacity of each lower blade 13 is further improved, the stirring efficiency is improved by forming the small stirring area 14, and the discharging capacity of the centrifugal impeller 1 is also considered. More preferably, at this time, in order to maximize the effect of the turbulence holes, the plurality of turbulence through-holes 131 of the lower blade 13 are located at the horizontal side of the small agitation zone 14.

Preferably, in order to enable the powder material to gradually fall along the side wall of the impeller body 11, so as to improve the mixing efficiency of the slurry, the impeller body 11 is arranged in a cone structure, and the outer profile of the cross section of the impeller body 11 is gradually enlarged from top to bottom.

Preferably, the upper blade 12 is a one-piece structure and extends spirally and obliquely downward in the circumferential direction of the impeller body 11. Set up like this, the drainage area of top blade 12 is bigger to can make the powder material who has been located between two adjacent top blades 12 escape to between two other top blades 12, so that centrifugal impeller 1 can more even drainage powder solid, in order to improve centrifugal impeller 1's stirring ability.

Preferably, the stirring device for the pulping machine further comprises a scattering centrifugal wheel body 21, wherein the scattering centrifugal wheel body 21 is provided with a plurality of cutting rods 22, and the plurality of cutting rods 22 are arranged on the side wall of the scattering centrifugal wheel body 21 at intervals; the scattering centrifugal wheel body 21 is connected to the top of the impeller body 11. With this arrangement, the powder material is more uniformly scattered by scattering the centrifugal wheel body 21, so that the powder material is more uniformly distributed around the bottom of the impeller body 11.

Preferably, in order to facilitate the maintenance and reduce the maintenance cost, the breaking centrifugal wheel body 21 is detachably connected with the impeller body 11; with such an arrangement, when one of the centrifugal wheel body 21 and the impeller body 11 needs to be replaced, the other one can be used continuously. In order to make the sharp cut of the cutting bar 22 more, the side wall of the cutting bar 22 has a plurality of sharp edges 221.

Preferably, the scattering centrifugal wheel body 21 is arranged in a cone structure, and the outer profile of the cross section of the scattering centrifugal wheel body 21 gradually increases from top to bottom. The cutting rods 22 spirally extend downwards at intervals along the circumferential direction of the scattering centrifugal wheel body 21 to form a scattering unit combination, and the scattering unit combinations are distributed at intervals around the circumferential direction of the scattering centrifugal wheel body 21. By the arrangement, when the centrifugal wheel body 21 is scattered in a overlooking mode, the cutting rods 22 distributed along the circumferential direction of the scattered centrifugal wheel body 21 are more dense, so that the powder material can not directly pass through and be cut by the cutting rods 22 basically in the falling process, and the agglomerated material in the powder material is guaranteed to be scattered reliably.

In order to make the powder material slide down more smoothly, the diameter of the bottom of the scattering centrifugal wheel body 21 is the same as that of the top of the centrifugal impeller 1.

Referring to fig. 4, the utility model also discloses a pulping machine, it includes frame 3, axis of rotation 4 and the agitating unit who is used for the pulping machine, and frame 3 has stirring chamber 31, and stirring chamber 31 and with centrifugal impeller 1 linkage connection are located to axis of rotation 4. The inlet of the agitation chamber 31 is located directly below the centrifugal impeller 1, and the outlet of the agitation chamber 31 is located on the horizontal side of the lower blade 13.

More preferably, the pulping machine is provided with an internal circulation pipeline 5, the internal circulation pipeline 5 is connected with a flushing valve 6 and a power water pump, an inlet of the internal circulation pipeline 5 is communicated with the stirring cavity 31, and an outlet of the internal circulation pipeline 5 faces the scattering centrifugal wheel body 21. In this way, the slurry in the stirring chamber 31 is pumped to the breaking centrifugal wheel body 21 through the internal circulation pipe 5, so that the powder remained on the breaking centrifugal wheel body 21 is brought into the slurry.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A agitating unit for pulper, its characterized in that: the centrifugal impeller comprises a centrifugal impeller (1), wherein an impeller body (11) of the centrifugal impeller (1) is provided with a plurality of upper blades (12), and the upper blades (12) are arranged around the impeller body (11) at intervals in the circumferential direction; the impeller body (11) of the centrifugal impeller (1) is also connected with a plurality of lower blades (13), and the lower blades (13) are positioned under the impeller body (11) and are arranged at intervals in the circumferential direction of the impeller body (11); the lower blade (13) extends to the edge of the bottom of the impeller body (11) from inside to outside along the radial direction of the impeller body (11); the lower blade (13) is provided with a plurality of turbulence through holes (131).

2. The stirring device for a pulper according to claim 1, wherein: the lower blade (13) extends outwards from the central through hole (111) of the impeller body (11).

3. A stirring device for a pulper according to claim 2, wherein: the bottom of each upper blade (12) is connected with the bottom of one of the lower blades (13), the bottom of each upper blade (12) extends from the edge of the bottom of the impeller body (11) along the radial direction of the impeller body (11) to form a protrusion (121), and the outermost end of each lower blade (13) extends to the position right below the protrusion (121), so that a small stirring area (14) is formed between every two adjacent protrusions (121).

4. A stirring device for a pulper according to claim 3, characterised in that: the plurality of turbulence passage holes (131) of the lower blade (13) are located on the horizontal side of the small agitation zone (14).

5. A stirring device for a pulper according to claim 3, characterised in that: impeller body (11) are the cone structure and arrange, just the cross section outline of impeller body (11) is from last to getting bigger gradually down.

6. The stirring device for a pulper according to claim 1, wherein: the upper blade (12) is of a one-piece structure and extends spirally and obliquely downwards along the circumferential direction of the impeller body (11).

7. The stirring device for a pulper according to claim 1, wherein: the stirring device for the pulping machine further comprises a scattering centrifugal wheel body (21), wherein the scattering centrifugal wheel body (21) is provided with a plurality of cutting rods (22), and the cutting rods (22) are arranged on the side wall of the scattering centrifugal wheel body (21) at intervals; the scattering centrifugal wheel body (21) is connected to the top of the impeller body (11).

8. The stirring device for a pulper according to claim 7, wherein: the scattering centrifugal wheel body (21) is detachably connected with the impeller body (11); the side wall of the cutting bar (22) has a plurality of sharp edges (221).

9. The stirring device for a pulper according to claim 8, wherein: the scattering centrifugal wheel body (21) is arranged in a cone structure, and the outer profile of the cross section of the scattering centrifugal wheel body (21) is gradually enlarged from top to bottom; the cutting rods (22) extend downwards spirally and at intervals along the circumferential direction of the scattering centrifugal wheel body (21) to form scattering unit combinations, and the scattering unit combinations are distributed at intervals around the circumferential direction of the scattering centrifugal wheel body (21);

the diameter of the bottom of the scattering centrifugal wheel body (21) is the same as that of the top of the centrifugal impeller (1).

10. Pulping machine, its characterized in that: stirring device for a pulper comprising a frame (3), a rotating shaft (4) and a stirring means according to any one of claims 1 to 9, said frame (3) having a stirring chamber (31), said rotating shaft (4) being arranged in said stirring chamber (31) and being in linkage with said centrifugal impeller (1).