CN213610791U

CN213610791U - Improved structure of slurry tower stirrer

Info

Publication number: CN213610791U
Application number: CN202022008553.5U
Authority: CN
Inventors: 葛鸿山; 杨家万; 肖如坚; 关青
Original assignee: Zhejiang Shanying Paper Industry Co Ltd
Current assignee: Zhejiang Shanying Paper Industry Co Ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-07-06
Anticipated expiration: 2030-09-14

Abstract

The utility model provides a thick liquid tower mixer improves structure, it has solved the too complicated scheduling problem of seal structure of stirring pond and agitator, it includes the mount pad subassembly of installing on the stirring pond lateral wall through fixed establishment, the mount pad subassembly is passed in the agitator pivot, be provided with bearing slewing mechanism between agitator pivot and the mount pad subassembly, be provided with sealing mechanism between the one end that the stirring pond lateral wall was kept away from in the agitator pivot and the mount pad subassembly, it has the filter cake that porous material made to fill between agitator pivot and the relative one end of stirring pond lateral wall and the mount pad subassembly, the filter cake just rotates relatively with the fixed mount pad subassembly of agitator pivot, leave the clearance between filter cake and the mount pad subassembly. The utility model has the advantages of simple structure, low production cost, etc.

Description

Improved structure of slurry tower stirrer

Technical Field

The utility model belongs to the technical field of the agitator, concretely relates to thick liquid tower mixer improves structure.

Background

In large-scale paper-making enterprises, hundreds of stirrers are arranged in a pulp tower and a pulp pool in the pulping process, the stirrers are sealed by packing, the pulp leakage phenomenon often occurs under the condition that the liquid levels of the pulp tower and the pulp pool are high, and the packing seal is easy to wear. This problem is also present in all mixers of the paper industry. And it is very difficult to change the packing: the packing can not be replaced without long-time shutdown or under the condition that the slurry tower and the slurry pool can not be emptied. Slurry leakage can seriously affect the field environmental sanitation and slurry loss. The ordinary stirrer is basically sealed by a packing, and has the advantages of economy, convenient maintenance and poor field environmental sanitation caused by easy abrasion and slurry leakage of the packing. For example, the electromagnetic transmission mechanical seal stirrer has a complex structure, the price of a single stirrer is thirty more than ten thousand yuan, the price is four to five times that of a common stirrer, and the investment cost is too high.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses a sealing structure [201920789061.9] for a slurry tower agitator, which comprises a packing seal for sealing the slurry tower and an agitator main shaft, wherein the packing seal comprises a packing box body, a distance pipe is arranged at one end of the outer side of the agitator main shaft, which is close to a packing shaft sleeve and is positioned in the slurry tower, the sealing structure for the slurry tower agitator further comprises a labyrinth seal, the labyrinth seal comprises a static ring with a first wall body and a movable ring with a second wall body, which is embedded in the static ring, a gap is formed between the first wall body and the second wall body, and the gap is in the shape of a labyrinth passage.

The scheme solves the problem of insufficient sealing of the stirrer to a certain extent, but the scheme still has a plurality of defects, such as excessively complex structure, high processing cost and the like.

Disclosure of Invention

The utility model aims at the above problem, provide a reasonable in design, the lower thick liquid tower mixer of cost improves the structure.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this thick liquid tower mixer improves structure, the setting is between stirring pond lateral wall and agitator pivot, include the mount pad subassembly of installing on the stirring pond lateral wall through fixed establishment, the agitator pivot passes the mount pad subassembly, be provided with bearing slewing mechanism between agitator pivot and the mount pad subassembly, the agitator pivot is kept away from and is provided with sealing mechanism between the one end of stirring pond lateral wall and the mount pad subassembly, it has the filter cake that porous material made to fill between agitator pivot and the relative one end of stirring pond lateral wall and the mount pad subassembly, the filter cake just rotates with the fixed relative mount pad subassembly of agitator pivot, leave the clearance between filter cake and the mount pad subassembly. The filter block is adopted to filter the slurry, a certain sealing effect is achieved on the bearing rotating mechanism, meanwhile, the filtered water plays a mechanical seal lubricating effect on the bearing rotating mechanism, and mechanical seal sealing water does not need to be added independently, so that the sealing structure is simplified, and the processing cost is reduced.

In foretell thick liquid tower mixer improves structure, the mount pad subassembly is provided with the rotation installation section of thick bamboo including laminating at the inboard interior mount pad of stirring pond lateral wall and laminating at the outer mount pad in the stirring pond lateral wall outside, outer mount pad center, rotates the installation section of thick bamboo and pass interior mount pad and with stirring pond lateral wall intercommunication, rotates the installation section of thick bamboo and is provided with the strengthening rib of a plurality of relative rotation installation section of thick bamboos central axis symmetries with outer mount pad handing-over department. The inner mounting seat and the outer mounting seat are clamped and fixed, and the disassembly and the assembly are convenient.

In foretell thick liquid tower mixer improves structure, fixed establishment is including setting up the bolt on the mount pad including, the mount pad is relative one side and relative interior mount pad central axis symmetry including the bolt setting, it has the bolt hole relative with the bolt to open on stirring pond lateral wall and the outer mount pad, outer mount pad and interior mount pad pass through the bolt and compress tightly with the laminating of bolted connection's nut and stirring pond lateral wall, the inboard mounting groove of having with interior mount pad block of opening of stirring pond lateral wall, the inboard and the stirring pond lateral wall inboard of interior mount pad keeps flushing. The nut setting is outside at the stirring pond lateral wall among the fixed establishment, and convenient the screwing is fixed, and the installation is accomplished the back, does not influence the normal rotation of agitator pivot.

In foretell thick liquid tower mixer improves structure, bearing slewing mechanism is including setting up the cylindrical roller bearing between rotating installation section of thick bamboo and agitator pivot, and the outer lane of one side that cylindrical roller bearing is close to the stirring pond lateral wall supports with fixing the spacing ring of rotating the installation section of thick bamboo inboard and leans on. The cylindrical roller bearing can bear larger radial load and is suitable for a stirrer rotating shaft which is horizontally placed.

In foretell thick liquid tower mixer improves structure, the spacing groove that has a plurality of relative cylindrical roller bearing central axis symmetries is opened in the cylindrical roller bearing outer lane outside, rotates the inboard distribution of installation section of thick bamboo and has the spacing strip of pegging graft fixedly mutually with the spacing groove, and the inner circle inboard of cylindrical roller bearing is opened has the fixed slot, and the fixed slot is pegged graft mutually with the fixed strip of agitator pivot side. The inner side and the outer side of the cylindrical roller bearing are respectively fixed with the rotating installation cylinder and the stirrer rotating shaft relatively, and the rotating friction of the stirrer rotating shaft is reduced.

In the improved structure of the slurry tower stirrer, the sealing mechanism comprises a sealing cylinder fixed on the outer side of the rotating shaft of the stirrer, and a compression spring surrounding the rotating shaft of the stirrer is arranged between the sealing cylinder and the outer ring of the cylindrical roller bearing. The compression spring applies extrusion force towards the direction of the limiting ring to the cylindrical roller bearing, and the outer ring of the cylindrical roller bearing and the sealing cylinder play a role in double sealing between the rotating shaft of the stirrer and the rotating installation cylinder.

In the improved structure of the slurry tower stirrer, the inner side of one end of the rotary mounting cylinder, which is close to the side wall of the stirring pool, is provided with a limiting ring opposite to the filter block. The spacing collar limits the filter block in the rotary mounting cylinder, so that the filter block is prevented from being separated.

In the improved structure of the slurry tower stirrer, the filter screen is arranged on one side of the filter block opposite to the outer mounting seat, and the filter screen is fixed relative to the rotating mounting cylinder. The filter screen further filters the liquid that the filter element filtered, is provided with the crack between it, when guaranteeing that agitator pivot relatively rotates the installation section of thick bamboo and rotate, guarantees that liquid fully filters.

In the improved structure of the slurry tower stirrer, a rubber gasket is clamped between the outer mounting seat and the outer side of the side wall of the stirring tank. The rubber gasket compresses tightly the gap between outer mount pad and the stirring pond lateral wall, compares in direct laminating installation and has better leakproofness.

In the improved structure of the slurry tower stirrer, the center of one end of the stirrer rotating shaft, which is opposite to the side wall of the stirring pool, is provided with a plug hole, and the outer side of the plug hole is provided with a plurality of connecting pins. The end of the stirrer rotating shaft can be externally connected with an extension rotating shaft or additionally provided with a blade through a connecting pin.

Compared with the prior art, the utility model has the advantages of: the structure is simple, and the processing and production cost is reduced; the sealing effect is good, and slurry leakage cannot occur during use; the installation is convenient, and the stirrer is suitable for the installation of stirrers in various stirring pools.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a schematic structural view of another view angle of the present invention;

FIG. 4 is a schematic structural view of the side wall of the stirring tank of the present invention;

FIG. 5 is a schematic structural view of the stirrer shaft according to the present invention;

in the figure, the stirring tank side wall 1, the stirrer rotating shaft 2, the inserting hole 21, the connecting pin 22, the fixing mechanism 3, the bolt 31, the bolt hole 32, the nut 33, the mounting seat assembly 4, the inner mounting seat 41, the outer mounting seat 42, the rotating mounting cylinder 43, the reinforcing rib 44, the limiting ring 45, the filter screen 46, the rubber gasket 47, the mounting groove 48, the bearing rotating mechanism 5, the cylindrical roller bearing 51, the limiting ring 52, the limiting groove 53, the limiting strip 54, the fixing groove 55, the fixing strip 56, the sealing mechanism 6, the sealing cylinder 61, the compression spring 62 and the filter block 7.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-5, the improved structure of the slurry tower stirrer is arranged between a stirring pool side wall 1 and a stirrer rotating shaft 2, and comprises a mounting base assembly 4 mounted on the stirring pool side wall 1 through a fixing mechanism 3, wherein the stirrer rotating shaft 2 penetrates through the mounting base assembly 4, a bearing rotating mechanism 5 is arranged between the stirrer rotating shaft 2 and the mounting base assembly 4, a sealing mechanism 6 is arranged between one end of the stirrer rotating shaft 2, which is far away from the stirring pool side wall 1, and the mounting base assembly 4, a filter block 7 made of a porous material is filled between one end of the stirrer rotating shaft 2, which is opposite to the stirring pool side wall 1, and the mounting base assembly 4, the filter block 7 is fixed with the stirrer rotating shaft 2 and rotates relative to the mounting base assembly 4, and a gap is reserved between the filter block 7 and the mounting base. Filter 7 and pack between agitator pivot 2 in mount pad subassembly 4, and the inside hole of filter 7 after the filtration is filled up, plays certain sealed effect, and the moisture after the filtration simultaneously plays the lubrication action in flowing into bearing slewing mechanism 5, need not to add sealed water. And the double sealing is realized by matching with the sealing mechanism 6, so that the slurry leakage of the stirring tank is effectively prevented.

Specifically, mount pad subassembly 4 is provided with rotation installation section of thick bamboo 43 including laminating at the interior mount pad 41 of stirring pond lateral wall 1 inboard and laminating at the outer mount pad 42 of stirring pond lateral wall 1 outside, and outer mount pad 42 center, and rotation installation section of thick bamboo 43 passes interior mount pad 41 and communicates with stirring pond lateral wall 1, and rotation installation section of thick bamboo 43 and outer mount pad 42 handing-over department are provided with the strengthening rib 44 of a plurality of relative rotation installation section of thick bamboos 43 central axis symmetry. The inner mounting seat 41 and the outer mounting seat 42 are clamped and fixed on the side wall 1 of the stirring pool, a gap between the inner mounting seat and the outer mounting seat is bent for multiple times, liquid flowing is reduced, and the central rotating mounting cylinder 43 is matched with the bearing rotating mechanism 5 to ensure that the rotating shaft 2 of the stirrer normally rotates.

Deeply, the fixing mechanism 3 comprises a bolt 31 arranged on the inner mounting seat 41, the bolt 31 is arranged on one side of the inner mounting seat 41 opposite to the outer mounting seat 42 and is symmetrical relative to the central axis of the inner mounting seat 41, bolt holes 32 opposite to the bolt 31 are formed in the stirring tank side wall 1 and the outer mounting seat 42, the outer mounting seat 42 and the inner mounting seat 41 are attached and pressed to the stirring tank side wall 1 through the bolt 31 and a nut 33 connected with the bolt 31, a mounting groove 48 clamped with the inner mounting seat 41 is formed in the inner side of the stirring tank side wall 1, and the inner side of the inner mounting seat 41 is kept flush with the inner side of the stirring tank side wall 1. The fixing mechanism 3 is used for attaching and fixing the inner mounting seat 41 and the outer mounting seat 42 on the side wall 1 of the stirring tank, and the bolts 31 are uniformly distributed to ensure uniform sealing.

Further, the bearing rotating mechanism 5 includes a cylindrical roller bearing 51 disposed between the rotating installation cylinder 43 and the stirrer rotating shaft 2, and an outer ring of one side of the cylindrical roller bearing 51 close to the stirring tank side wall 1 abuts against a limit ring 52 fixed inside the rotating installation cylinder 43. The outer ring of the cylindrical roller bearing 51 is fixed with the rotary mounting cylinder 43, and the inner ring is fixed with the stirrer rotary shaft 2 and synchronously rotates under the drive of the stirrer. The retainer ring 52 fixes the axial position of the cylindrical roller bearing 51 within the mount assembly 4.

Furthermore, the outer side of the outer ring of the cylindrical roller bearing 51 is provided with a plurality of limiting grooves 53 which are symmetrical relative to the central axis of the cylindrical roller bearing 51, the inner side of the rotary mounting cylinder 43 is distributed with limiting strips 54 which are mutually inserted and fixed with the limiting grooves 53, the inner side of the inner ring of the cylindrical roller bearing 51 is provided with a fixing groove 55, and the fixing groove 55 is mutually inserted and fixed with a fixing strip 56 on the side surface of the stirrer rotating shaft 2. The limiting grooves 53 and the limiting strips 54 are uniformly distributed on the outer side of the outer ring of the cylindrical roller bearing 51 to limit the circumferential position of the outer ring, and when the stirrer rotating shaft 2 is inserted into the center hole of the cylindrical roller bearing 51, the circumferential position is fixed by the fixing grooves 55 and the fixing strips 56.

Besides, the sealing mechanism 6 includes a sealing cylinder 61 fixed outside the agitator rotating shaft 2, and a compression spring 62 surrounding the agitator rotating shaft 2 is provided between the sealing cylinder 61 and the outer ring of the cylindrical roller bearing 51. The two ends of the pressure spring 62 respectively abut against the sealing cylinder 61 and the outer ring of the cylindrical roller bearing 51, wherein the sealing cylinder 61 is relatively fixed, the pressing force exerted by the pressure spring 62 is transmitted to the cylindrical roller bearing 51, and the inner sealing performance of the stirrer and the stirrer rotating shaft 2 is still maintained when the stirrer and the stirrer rotating shaft vibrate.

Meanwhile, a limiting ring 45 opposite to the filter block 7 is arranged on the inner side of one end of the rotary mounting cylinder 43 close to the side wall 1 of the stirring pool. The limiting ring 45 reduces the caliber of the end of the rotary mounting cylinder 43, limits the filter block 7 at the inner side of the rotary mounting cylinder 43, limits the liquid flow, reduces the pressure borne by the sealing mechanism 6, and is suitable for a stirring pool with a higher liquid level.

It can be seen that a filter screen 46 is provided on the opposite side of the filter block 7 from the outer mounting seat 42, and the filter screen 46 is fixed relative to the rotary mounting cylinder 43. The filter screen 46 has a good blocking effect on free debris in the slurry, and the filter block 7 is matched to reduce solid impurities from entering the rotating installation cylinder 43.

It is apparent that a rubber gasket 47 is sandwiched between the outer mounting 42 and the outside of the mixing tank side wall 1. The rubber gasket 47 plays a role in blocking the gap between the mounting seat assemblies 4 under the effect of the pressing force.

Preferably, the center of the end of the stirrer rotating shaft 2 opposite to the stirring tank side wall 1 is provided with a plug hole 21, and the outer side of the end is provided with a plurality of connecting pins 22. The stirrer shaft 2 usually needs an external rotating blade or an extension pipe, and the fitting is convenient to install by adding a plug hole 21 and a connecting pin 22 at the end.

In summary, the principle of the present embodiment is: stirring pond lateral wall 1's inboard and mount pad subassembly 4 intercommunication are provided with filter block 7 between and filter the interior thick liquid of stirring pond, and filter block 7 after the filtration plays sealed effect, and the moisture after the filtration simultaneously plays lubricated effect to bearing slewing mechanism 5, need not to increase sealed water structure, has simplified seal structure, reduces its processing degree of difficulty and manufacturing cost.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the stirring tank side wall 1, the stirrer rotating shaft 2, the inserting hole 21, the connecting pin 22, the fixing mechanism 3, the bolt 31, the bolt hole 32, the nut 33, the mounting seat assembly 4, the inner mounting seat 41, the outer mounting seat 42, the rotary mounting cylinder 43, the reinforcing rib 44, the limiting ring 45, the filter screen 46, the rubber gasket 47, the mounting groove 48, the bearing rotating mechanism 5, the cylindrical roller bearing 51, the limiting ring 52, the limiting groove 53, the limiting strip 54, the fixing groove 55, the fixing strip 56, the sealing mechanism 6, the sealing cylinder 61, the compression spring 62, the filter block 7 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. An improved structure of a slurry tower stirrer is arranged between a stirring pool side wall (1) and a stirrer rotating shaft (2), and is characterized by comprising a mounting seat component (4) arranged on the stirring pool side wall (1) through a fixing mechanism (3), wherein the stirrer rotating shaft (2) penetrates through the mounting seat component (4), a bearing rotating mechanism (5) is arranged between the stirrer rotating shaft (2) and the mounting seat component (4), a sealing mechanism (6) is arranged between one end of the stirrer rotating shaft (2) far away from the stirring pool side wall (1) and the mounting seat component (4), a filter block (7) made of porous materials is filled between one end of the stirrer rotating shaft (2) opposite to the stirring pool side wall (1) and the mounting seat component (4), the filter block (7) is fixed with the stirrer rotating shaft (2) and rotates relative to the mounting seat component (4), and a gap is reserved between the filter block (7) and the mounting seat component (4).

2. The improved structure of the slurry tower mixer as claimed in claim 1, wherein the mounting seat assembly (4) comprises an inner mounting seat (41) attached to the inner side of the mixing tank side wall (1) and an outer mounting seat (42) attached to the outer side of the mixing tank side wall (1), a rotating mounting cylinder (43) is arranged at the center of the outer mounting seat (42), the rotating mounting cylinder (43) penetrates through the inner mounting seat (41) and is communicated with the mixing tank side wall (1), and a plurality of reinforcing ribs (44) which are symmetrical relative to the central axis of the rotating mounting cylinder (43) are arranged at the joint of the rotating mounting cylinder (43) and the outer mounting seat (42).

3. Improved structure of a tower mixer according to claim 2, characterized in that the fixing means (3) comprises a bolt (31) arranged on the inner mounting seat (41), the bolt (31) is arranged at one side of the inner mounting seat (41) opposite to the outer mounting seat (42) and is symmetrical relative to the central axis of the inner mounting seat (41), the side wall (1) and the outer mounting seat (42) of the stirring tank are provided with bolt holes (32) opposite to the bolts (31), the outer mounting seat (42) and the inner mounting seat (41) are attached and pressed tightly with the side wall (1) of the stirring pool through a bolt (31) and a nut (33) connected with the bolt (31), the inner side of the side wall (1) of the stirring pool is provided with a mounting groove (48) which is clamped with the inner mounting seat (41), the inner side of the inner mounting seat (41) is flush with the inner side of the stirring tank side wall (1).

4. The improved structure of the slurry tower mixer as claimed in claim 2, wherein the bearing rotating mechanism (5) comprises a cylindrical roller bearing (51) arranged between the rotating installation cylinder (43) and the mixer rotating shaft (2), and the outer ring of one side of the cylindrical roller bearing (51) close to the mixing pool side wall (1) is abutted with a limiting ring (52) fixed on the inner side of the rotating installation cylinder (43).

5. The improved structure of the sizing tower mixer according to claim 4, characterized in that a plurality of limiting grooves (53) which are symmetrical relative to the central axis of the cylindrical roller bearing (51) are formed on the outer side of the outer ring of the cylindrical roller bearing (51), limiting strips (54) which are mutually inserted and fixed with the limiting grooves (53) are distributed on the inner side of the rotary mounting cylinder (43), a fixing groove (55) is formed on the inner side of the inner ring of the cylindrical roller bearing (51), and the fixing groove (55) is mutually inserted and fixed with a fixing strip (56) on the side surface of the mixer rotating shaft (2).

6. The improved structure of the slurry tower mixer as claimed in claim 4, wherein the sealing mechanism (6) comprises a sealing cylinder (61) fixed on the outer side of the mixer rotating shaft (2), and a compression spring (62) surrounding relative to the mixer rotating shaft (2) is arranged between the sealing cylinder (61) and the outer ring of the cylindrical roller bearing (51).

7. The improved structure of the slurry tower mixer as claimed in claim 2, characterized in that the inner side of one end of the rotary mounting cylinder (43) close to the side wall (1) of the mixing tank is provided with a limiting ring (45) opposite to the filter block (7).

8. The improved structure of the tower mixer as claimed in claim 2, wherein the side of the filter block (7) opposite to the outer mounting seat (42) is provided with a filter screen (46), and the filter screen (46) is fixed relatively to the rotary mounting cylinder (43).

9. The improved structure of the tower mixer of claim 2 wherein a rubber gasket (47) is sandwiched between the outer mounting seat (42) and the outside of the mixing tank sidewall (1).

10. The improved structure of the slurry tower stirrer according to claim 1, characterized in that the center of one end of the stirrer rotating shaft (2) opposite to the stirring pool side wall (1) is provided with a plug-in hole (21), and the outer side of the plug-in hole is provided with a plurality of connecting pins (22).