CN109423908A - A kind of twin-screw press master and the paper pulp production line with it - Google Patents
A kind of twin-screw press master and the paper pulp production line with it Download PDFInfo
- Publication number
- CN109423908A CN109423908A CN201710759309.2A CN201710759309A CN109423908A CN 109423908 A CN109423908 A CN 109423908A CN 201710759309 A CN201710759309 A CN 201710759309A CN 109423908 A CN109423908 A CN 109423908A
- Authority
- CN
- China
- Prior art keywords
- twin
- press master
- screw press
- central spindle
- helical blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 abstract description 17
- 239000000835 fiber Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of twin-screw press master and with its paper pulp production line.The twin-screw press master includes casing, and the first helical axis and the second helical axis in the chassis cavity are set, first helical axis includes the first central spindle and the first helical blade for being arranged in first central spindle, second helical axis includes the second central spindle and the second helical blade for being arranged in second central spindle, first helical blade and second helical blade intermeshing, wherein, the radially outward edge of at least one of first helical blade and second helical blade is equipped with gap structure, the gap structure penetrates through the thickness of corresponding helical blade.Twin-screw press master of the invention on helical blade by being arranged gap structure, the phenomenon that capable of effectively eliminating slurry and be extracted the problem of being hardened, and then press master can be prevented to be stuck.
Description
Technical field
The present invention relates to paper making equipment technical fields, and in particular to a kind of twin-screw press master and the pulp production with it
Line.
Background technique
Twin-screw press master is common shove equipment in paper industry comprising two are parallel to each other, are intermeshing
Helical axis, the common helical axis such as variable-diameter variable-pitch.In the rotary course of helical axis, into the slurry inside press master
It will be extruded, rub, grinding and washing, and being discharged the black liquor in slurry.Twin-screw press master have extraction rate of black liquor it is high,
The advantages that fiber loss is few, fiber destruction degree is small, easy to operate.However, twin-screw press master is normal in practical work process
It often will appear bored vehicle phenomenon, that is, since the black liquor in slurry is squeezed to obtain overdrying, so that the slurry for being located at press master back segment dries out
It is hardened, can not continue to deform and advances, eventually lead to press master and be stuck.
Summary of the invention
Based on above-mentioned status, the main purpose of the present invention is to provide a kind of twin-screw press masters, can effectively eliminate bored
Vehicle phenomenon guarantees press master continuous operation.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of twin-screw press master comprising casing and the first helical axis being arranged in the chassis cavity and
Two helical axis, first helical axis includes the first central spindle and the first helical blade for being arranged in first central spindle, described
Second helical axis includes the second central spindle and the second helical blade for being arranged in second central spindle, first helical blade and
The second helical blade intermeshing, wherein at least one of first helical blade and second helical blade
Radially outward edge be equipped with gap structure, the gap structure penetrates through the thickness of corresponding helical blade.
Preferably, it is equipped with the gap structure on first helical blade and second helical blade, and described
The gap structure in gap structure and second helical blade on first helical blade corresponds.
Preferably, the shape of the gap structure is curved shape, preferably semicircle or half elliptic.
Preferably, the gap structure setting is within the scope of adjacent multiple screw pitch.
Preferably, within the scope of each screw pitch, it is provided with 2-4 gap structure uniformly in the circumferential direction.
Preferably, the gap structure setting is in first helical blade and/or the back segment of second helical blade
On.
Preferably, the back segment diameter of first central spindle and second central spindle becomes larger, the gap structure setting
On the corresponding spiraling vane portions of the central spindle back segment that is become larger with diameter.
Preferably, it is set on the back segment that the diameter of at least one of first central spindle and described second central spindle becomes larger
There is axle sleeve structure.
Preferably, the axle sleeve structure with a thickness of 10-20mm.
Preferably, the axle sleeve structure includes the multi-disc bearing bush structure being stitched together, the multi-disc bearing shell with it is corresponding
Central spindle is integrally welded.
Preferably, correspond on the casing at the position of the axle sleeve structure and be provided with the water filling for leading to chassis cavity
Hole.
Preferably, water injecting mechanism is connected on the outside of the water injection hole, the twin-screw press master further includes control device,
The control device is connected with the water injecting mechanism, with the switch for controlling the water injecting mechanism.
It preferably, further include torque detecting unit, for detecting the torsion of first central spindle and/or second central spindle
Square, and the torque value that will test is transferred to the control device.
Another object of the present invention is to provide a kind of paper pulp production lines.Its technical solution is as follows:
A kind of paper pulp production line comprising mentioned-above twin-screw press master.
Twin-screw press master of the invention can effectively eliminate slurry and be squeezed by the way that gap structure is arranged on helical blade
Dry the problem of being hardened, and then the phenomenon that press master can be prevented to be stuck.Further, twin-screw press master of the invention by
Axle sleeve structure is set on central spindle back segment, can guarantee to extract degree to slurry.
Detailed description of the invention
Hereinafter reference will be made to the drawings is described the preferred embodiment of twin-screw press master according to the present invention.In figure:
Fig. 1 is a kind of structural schematic diagram of preferred embodiment of twin-screw press master of the invention；
Fig. 2 is the schematic top plan view of Fig. 1；
Fig. 3 is the A-A schematic cross-sectional view in Fig. 2；
Fig. 4 is the B-B schematic cross-sectional view in Fig. 2；
Fig. 5 is the C-C schematic cross-sectional view in Fig. 2.
Specific embodiment
Aiming at the problem that twin-screw press master in the prior art is easy to appear bored vehicle phenomenon, the present invention provides a kind of new
Twin-screw press master, by the twin-screw press master to the prior art make improvement to eliminate bored vehicle phenomenon.However, being easy
Understand, other than the improvement structure mentioned in this specification, the otherwise structure of twin-screw press master can be direct
It, will be without being described in detail in this specification using the prior art.
Referring first to Fig. 1 and Fig. 2, that schematically illustrate a kind of twin-screw press masters of the invention.The twin-screw squeezes
Pulp grinder includes casing 1 and the first helical axis 2 and the second helical axis 3 that are arranged in 1 inner cavity of casing.Wherein, described
The first helical blade 5 that one helical axis 2 central spindle 4 and be arranged in first central spindle 4 including first；Second helical axis 3
Central spindle 6 and the second helical blade 7 for being arranged in second central spindle 6 including second, first helical blade 5 and described the
The intermeshing of two helical blades 7.Wherein, as shown in Figure 4 and Figure 5, first helical blade 5 and second helical blade 7
At least one of radially outward edge be equipped with gap structure 8, the gap structure 8 penetrates through the thickness of corresponding helical blade.
For example, in Fig. 4 and embodiment shown in fig. 5, first helical blade 5 and second helical blade 7
Radially outward edge be designed with gap structure 8, since these gap structures 8 penetrate through first helical blade 5 and described second
The thickness of helical blade 7 allows slurry to move to the other side via gap structure 8 from the side of corresponding helical blade,
Avoid the excessive increase of extruding force.That is, gap structure 8 can play Unloading Effect.
Then, in the twin-screw press master course of work, with the gap between the first helical axis 2 and the second helical axis 3
Constantly reduce, slurry is constantly extruded, however, a part of slurry can be in the effect of extruding force due to the presence of gap structure 8
Under via gap structure 8 from the front side of helical blade return to helical blade rear side, so as to avoid slurry from excessively being squeezed
It presses and is hardened, and then can prevent press master from bored vehicle phenomenon occurs.
Preferably, when being equipped with the gap structure 8 on first helical blade 5 and second helical blade 7,
The gap structure 8 in gap structure 8 and second helical blade 7 on first helical blade 5 corresponds, such as Fig. 4
With shown in Fig. 5.
That is, in order to preferably play the Unloading Effect of gap structure 8, gap structure 8 on two helical blades can be with
It is configured in couples.
Preferably, as shown in Figure 4 and Figure 5, the shape of the gap structure 8 is that curved shape, preferably semicircle or half are ellipse
It is round.In addition, the dimensions of gap structure 8 can determine as the case may be, for example, the number of gap structure 8 is more, then
The size of each gap structure 8 can be smaller.
Preferably, the gap structure 8 is arranged within the scope of adjacent multiple screw pitch.That is, can be only in corresponding spiral shell
Gap structure 8 is set in a part of vane piece, for example, being provided only on the back segment of helical blade, because slurry is extruded to
Contained moisture significantly reduces when back segment, extruding force often significantly increases, and cause press master occur bored vehicle phenomenon also it is mostly be because
Occur caused by the slurry excessively extracted for helical blade back segment.For this purpose, the leading portion of each helical blade does not need setting gap structure,
As shown in Figure 3.
In general, the feeding inlet and discharge port of press master are located at the both ends of shell, as shown in Figure 1, feeding inlet 11
Positioned at left end, discharge port (not shown) is located at right end.Therefore, in the application, leading portion refers to close to the part of press master feeding inlet,
Back segment then refers to close to the part of press master discharge port.Similarly, the front side of helical blade and rear side are also to respectively refer to direction to enter
The helicoid of material mouth one end and helicoid towards discharge port one end.
Preferably, the setting quantity of gap structure 8 may is that within the scope of each screw pitch, be arranged uniformly in the circumferential direction
There is 2-4 gap structure 8, it is possible thereby to preferably realize Unloading Effect.
Preferably, after first helical blade 5 and/or second helical blade 7 is arranged in the gap structure 8
Duan Shang.
Preferably, twin-screw press master according to the present invention uses the helical axis of variable-diameter variable-pitch, that is, described the
The back segment diameter of one central spindle 4 and second central spindle 6 becomes larger.In this case, the gap structure 8 can be set
On spiraling vane portions corresponding with the central spindle back segment that the diameter becomes larger.
Cause the back segment extruding force of press master insufficient after gap structure 8 to prevent from being arranged, it is preferable that described in the present invention
At least one of first central spindle 4 and second central spindle 6 are equipped with axle sleeve structure 9, and the axle sleeve structure 9 is arranged corresponding
The back segment that the diameter of central spindle becomes larger.For example, as shown in Fig. 2, the diameter of first central spindle 4 and second central spindle 6 by
Axle sleeve structure 9 is equipped on the big back segment of gradual change.Axle sleeve structure 9 can further increase the diameter of corresponding central spindle back segment, from
And reduce the radial clearance between two helical axis, thus increase the dynamics laterally extracted.
In the presence of gap structure 8, laterally extract dynamics increase not will cause slurry two helical axis it
Between be hardened, and slurry can be made to maintain preferably to extract degree.
Preferably, the axle sleeve structure 9 with a thickness of 10-20mm.
Preferably, the axle sleeve structure 9 includes the multi-disc bearing bush structure (not shown) being stitched together, the multi-disc bearing shell
It is integrally welded with corresponding central spindle.
Preferably, correspond on the casing 1 at the position of the axle sleeve structure 9 and be provided with the water filling for leading to chassis cavity
Hole 10.It, can be by water injection hole 10 to squeezing when the excessive situation of extruding force (as will appear bored vehicle phenomenon) occurs in press master
It is filled the water in the inner cavity of pulp grinder, especially to the slurry water filling being hardened that drying out, is allowed to soften again and restore mobility, thus
It can further ensure that bored vehicle phenomenon does not occur for press master.
For this purpose, the outside of the water injection hole 10 can connect water injecting mechanism, especially pressure water flooding mechanism, that is, it include pressurization
Device, so that water injecting mechanism can be opened when needing to fill the water, it can be under the internal pressure of water injecting mechanism into press master
It is filled the water in chamber.
Preferably, the twin-screw press master further includes control device (not shown), the control device and the water filling
Mechanism is connected, and with the switch for controlling the water injecting mechanism, specifically, can control the switch of the solenoid valve of water injecting mechanism.
Preferably, the twin-screw press master can also include torque detecting unit, for detect first central spindle and/
Or the torque of second central spindle, and the torque value that will test is transferred to the control device.
The control device can monitor the torque value of first central spindle and/or second central spindle in real time as a result, and
The water injecting mechanism is controlled when the torque value is more than first predetermined value to open, meanwhile, under the premise of water injecting mechanism is opened,
When the torque value is lower than second predetermined value (smaller than first predetermined value), then controls the water injecting mechanism and close.
Specifically, first predetermined value and second predetermined value can be determined by experiment.For example, for a certain specification
For press master, the actual torque of the first central spindle or the second central spindle when bored vehicle can occur than it for first predetermined value is smaller,
And second predetermined value then lowers a certain amount again on the basis of the first torque value, such as can be equal to when working normally
Actual torque value.
Preferably, the torque detecting unit may include foil gauge, the strain gauge adhesion in first central spindle and/
Or on the part of second central spindle being located at outside casing, to easily detect the torque value in corresponding central spindle.
It is easily understood that the torque detecting unit can also be passed using any other suitable torque in the prior art
Sensor.
It is further preferred that wireless way for transmitting number can be used between the torque detecting unit and the control device
According to avoid the setting signal line on the axis of continuous rotation.
To sum up, twin-screw press master of the invention can preferably eliminate bored vehicle phenomenon, while can guarantee squeezing for slurry again
Dry degree, to advantageously ensure that continuous, the stable operation of paper pulp production line.
On the basis of above-mentioned work, another aspect of the present invention additionally provides a kind of paper pulp production line comprising this hair
Bright mentioned-above twin-screw press master.Due to using twin-screw press master of the invention, paper pulp production line energy of the invention
Enough realize uninterruptedly produces paper pulp.
Those skilled in the art will readily recognize that above-mentioned each preferred embodiment can be free under the premise of not conflicting
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from of the invention basic
In the case where principle, those skilled in the art can be directed to the various apparent or equivalent modification or replace that above-mentioned details is made
It changes, is all included in scope of the presently claimed invention.
Claims (14)
1. a kind of twin-screw press master, which is characterized in that including casing and the first spiral being arranged in the chassis cavity
Axis and the second helical axis, first helical axis include the first central spindle and the first helical-blade for being arranged in first central spindle
Piece, second helical axis include the second central spindle and the second helical blade for being arranged in second central spindle, first spiral shell
Vane piece and second helical blade intermeshing, wherein in first helical blade and second helical blade
The radially outward edge of at least one is equipped with gap structure, and the gap structure penetrates through the thickness of corresponding helical blade.
2. twin-screw press master according to claim 1, which is characterized in that first helical blade and second spiral shell
Vane on piece is equipped with the gap structure, and on the gap structure on first helical blade and second helical blade
Gap structure correspond.
3. twin-screw press master according to claim 1, which is characterized in that the shape of the gap structure is curved shape,
Preferably semicircle or half elliptic.
4. twin-screw press master according to claim 1, which is characterized in that the gap structure setting is adjacent multiple
Within the scope of screw pitch.
5. twin-screw press master according to claim 4, which is characterized in that within the scope of each screw pitch, in the circumferential uniformly
Ground is provided with 2-4 gap structure.
6. twin-screw press master described in one of -5 according to claim 1, which is characterized in that the gap structure setting is described
On the back segment of first helical blade and/or second helical blade.
7. twin-screw press master according to claim 6, which is characterized in that first central spindle and second central spindle
Back segment diameter becomes larger, and the gap structure setting is in the corresponding spiraling vane portions of the central spindle back segment that becomes larger with diameter
On.
8. twin-screw press master according to claim 7, which is characterized in that in first central spindle and second central spindle
The back segment that becomes larger of the diameter of at least one be equipped with axle sleeve structure.
9. twin-screw press master according to claim 8, which is characterized in that the axle sleeve structure with a thickness of 10-20mm.
10. twin-screw press master according to claim 8, which is characterized in that the axle sleeve structure includes being stitched together
Multi-disc bearing bush structure, the multi-disc bearing shell and corresponding central spindle are integrally welded.
11. twin-screw press master according to claim 8, which is characterized in that correspond to the axle sleeve knot on the casing
The water injection hole for leading to chassis cavity is provided at the position of structure.
12. twin-screw press master according to claim 11, which is characterized in that be connected with water filling on the outside of the water injection hole
Mechanism, the twin-screw press master further includes control device, and the control device is connected with the water injecting mechanism, for controlling
The switch of the water injecting mechanism.
13. twin-screw press master according to claim 12, which is characterized in that further include torque detecting unit, for examining
The torque of first central spindle and/or second central spindle is surveyed, and the torque value that will test is transferred to the control device.
14. a kind of paper pulp production line, which is characterized in that including twin-screw press master described according to claim 1 one of -13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710759309.2A CN109423908A (en) | 2017-08-30 | 2017-08-30 | A kind of twin-screw press master and the paper pulp production line with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710759309.2A CN109423908A (en) | 2017-08-30 | 2017-08-30 | A kind of twin-screw press master and the paper pulp production line with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109423908A true CN109423908A (en) | 2019-03-05 |
Family
ID=65501926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710759309.2A Pending CN109423908A (en) | 2017-08-30 | 2017-08-30 | A kind of twin-screw press master and the paper pulp production line with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109423908A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164698A (en) * | 2021-12-14 | 2022-03-11 | 江苏金沃机械有限公司 | Half formula non-meshing double helix press master with non-circular three proofings feather key structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6451165B1 (en) * | 2000-11-09 | 2002-09-17 | Voith Paper, Inc. | Channel pulper |
| CN201525982U (en) * | 2009-09-27 | 2010-07-14 | 河南卷烟工业烟草薄片有限公司 | Novel double-helix squeezer |
| CN202575323U (en) * | 2012-04-27 | 2012-12-05 | 北京同欣长乐环保技术有限公司 | Screw conveyer operation monitoring protection device |
| CN203529487U (en) * | 2013-11-01 | 2014-04-09 | 徐州三原称重技术有限公司 | Plate and frame sludge storing and conveying device |
| CN204738171U (en) * | 2015-05-18 | 2015-11-04 | 昆明旭邦机械有限公司 | Crowded pulp grinder of high -efficient double helix |
| CN106044083A (en) * | 2016-08-24 | 2016-10-26 | 铜陵东晟生态农业科技有限公司 | Screw feeder |
| CN207210819U (en) * | 2017-08-30 | 2018-04-10 | 黑龙江如柏科技有限公司 | A kind of twin-screw press master and there is its paper pulp production line |
-
2017
- 2017-08-30 CN CN201710759309.2A patent/CN109423908A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6451165B1 (en) * | 2000-11-09 | 2002-09-17 | Voith Paper, Inc. | Channel pulper |
| CN201525982U (en) * | 2009-09-27 | 2010-07-14 | 河南卷烟工业烟草薄片有限公司 | Novel double-helix squeezer |
| CN202575323U (en) * | 2012-04-27 | 2012-12-05 | 北京同欣长乐环保技术有限公司 | Screw conveyer operation monitoring protection device |
| CN203529487U (en) * | 2013-11-01 | 2014-04-09 | 徐州三原称重技术有限公司 | Plate and frame sludge storing and conveying device |
| CN204738171U (en) * | 2015-05-18 | 2015-11-04 | 昆明旭邦机械有限公司 | Crowded pulp grinder of high -efficient double helix |
| CN106044083A (en) * | 2016-08-24 | 2016-10-26 | 铜陵东晟生态农业科技有限公司 | Screw feeder |
| CN207210819U (en) * | 2017-08-30 | 2018-04-10 | 黑龙江如柏科技有限公司 | A kind of twin-screw press master and there is its paper pulp production line |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164698A (en) * | 2021-12-14 | 2022-03-11 | 江苏金沃机械有限公司 | Half formula non-meshing double helix press master with non-circular three proofings feather key structure |
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Application publication date: 20190305 |