CN208455351U - Pulp pressure scalping - Google Patents
Pulp pressure scalping Download PDFInfo
- Publication number
- CN208455351U CN208455351U CN201821018133.1U CN201821018133U CN208455351U CN 208455351 U CN208455351 U CN 208455351U CN 201821018133 U CN201821018133 U CN 201821018133U CN 208455351 U CN208455351 U CN 208455351U
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- CN
- China
- Prior art keywords
- rotor
- fixed
- rotor block
- block
- scalping
- 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.)
- Expired - Fee Related
Links
- 239000002002 slurry Substances 0.000 claims abstract description 33
- 239000003818 cinder Substances 0.000 claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010790 dilution Methods 0.000 claims abstract description 4
- 239000012895 dilution Substances 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000012216 screening Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 description 14
- 239000000835 fiber Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Paper (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The utility model discloses a kind of pulp pressure scalpings, shell is fixed on pedestal, shell upper end is fixed with top cover, screen cylinder is fixedly installed in shell, upper part of the housing is provided with the good slurry outlet being connected with enclosure interior, housing bottom is provided with the stock inlet being connected with enclosure interior and re-scheduling cinder notch, the dilution mouth of a river being connected with enclosure interior and the light cinder notch of row are provided on top cover, bearing chamber bracket is fixed on pedestal, main shaft is rotatably equipped in bearing chamber bracket, rotor is installed on main shaft, rotor is located in screen cylinder, screen cylinder, rotor and main shaft are coaxially set, it is peripherally disposed on rotor to have several rotor blocks, the cross section of rotor block is the crescent of convex, the inclination of rotor block is fixed on the outer peripheral surface of rotor, and the lower end inclined direction of rotor block is identical as the direction of rotation of rotor.The pulp pressure scalping of the utility model reduces the resistance of rotor at runtime, improves screening efficiency, running current is reduced, to reduce power consumption.
Description
Technical field
The utility model relates to papermaking equipment technical fields, and in particular to a kind of up-flow for paper pulp coarse sizing and purification
Formula pressure coarse screen.
Background technique
In papermaking process flow, the slurry come from slip house is possible to miscellaneous containing fibre bundle, sand grains, metal fillings etc.
Matter, these impurity all have an impact to the maintenance at the quality of paper, forming net and equipment, if not being removed will certainly reduce
Before the quality of paper, or even cause the damage of equipment, brings unnecessary trouble to production, therefore paper machine is manufactured paper with pulp on slurry,
It generally requires and slurry is subjected to purification and Screening Treatment, the dust and impurity in slurry are on the one hand removed, on the other hand by slurry
It is evenly dispersed, the fibrous suspension uniformly dispersed is formed, forms uniform pulpboard after being dehydrated by wet end.Generally by slurry into
The equipment that row purification and Screening Treatment are used is pressurized screen.
Upward flow type pressure sieve is mainly used for using a kind of relatively broad screening installation in slurrying work in pulping production line
Qualified fiber is filtered out in skill from fiber mixed liquor.The working principle of upward flow type pressure sieve is: slurry in tangential direction into
Enter the lower part of pressurized screen, for slurry stream from equipment lower motion to upper side, slurry enters the screening between screen cylinder and rotor when work
Area, acceptable fiber are drawn by sieve pore by good slurry pipe, and underproof slurry continues up, by deslagging at the top of pressurized screen
Pipe discharge.Screening relies primarily on screen cylinder and rotor (rotor) cooperation, and there are a large amount of hole or gap in screen cylinder surface, is included in mixing
Shorter fiber can be unable to the long fibre or miscellaneous by sieve pore or seam by hole on screen cylinder or seam as good slurry in liquid
Matter is then blocked and device for transferring.The wing on rotor (rotor) surface plays stirring slurry in rotary course and revolves slurry
Flow the effect risen.
It is the rotor (rotor) of existing pressure coarse screen as shown in Figures 2 to 4, rotor block assembly is fixed by bolts to rotor
On, each of which rotor block assembly is made of annular lug and wedge shaped projection stacking, the setting direction and rotor of rotor block assembly
It is axial consistent, thus resistance when rotor wing rotation by slurry is larger, and electric current is higher when operation, and power consumption is larger.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of pulp pressure scalping, which is reduced
The resistance of rotor at runtime improves screening efficiency, reduces running current, to reduce power consumption, saves production cost.
In order to solve the above technical problems, the technical solution of the utility model is:
A kind of pulp pressure scalping, including pedestal are fixed with shell on the pedestal, and the shell upper end is fixed with top
It covers, screen cylinder is fixedly installed in the shell, the upper part of the housing is provided with the good slurry outlet being connected with the enclosure interior,
The housing bottom is provided with the stock inlet being connected with enclosure interior and re-scheduling cinder notch, be provided on the top cover in shell
The dilution mouth of a river and arrange light cinder notch that portion is connected, are fixed with bearing chamber bracket, rotation in the bearing chamber bracket on the pedestal
Main shaft is installed, rotor is installed on the main shaft, the rotor is located in the screen cylinder, the screen cylinder, the rotor and
The main shaft is coaxially set, and peripherally disposed on the rotor to have several rotor blocks, the cross section of the rotor block is
The crescent of convex, the rotor block inclination is fixed on the outer peripheral surface of the rotor, and the lower end of the rotor block is inclined
Tilted direction is identical as the direction of rotation of rotor.
Preferably, the angle between the rotor block and the bus of the rotor is 20 °~30 °.
Preferably, the main shaft is connect by V-belt with motor drive.
Preferably, the rotor block welding is on the outer peripheral surface of the rotor.
Preferably, the rotor block includes the upper layer rotor block, middle layer rotor block and lower layer along rotor axial direction uniform array
Rotor block, every layer of rotor number of blocks is 5.
After adopting the above technical scheme, the beneficial effects of the utility model are:
The pulp pressure scalping of the utility model belongs to up-flow sieve, after paper pulp enters screen cylinder from bottom with tangent line, leans on screen cylinder
The high speed rotation of inside and outside pressure difference and rotor up pushes slurry, while acceptable fiber constantly flows to outside screen cylinder, the pressure
Rotor block on the rotor of scalping is that inclination is fixed, and the lower end inclined direction of rotor block is identical as the direction of rotation of rotor,
It is along the direction of slurry circulation, from fluid mechanics principle, slurry pair when largely reducing rotor wing rotation
The resistance of rotor reduces the running current of pressurized screen, and the rotor block of the structure can aid in rotor and push fiber mixed
It closes slurry to rise to the top of pressure coarse screen, be discharged convenient for light slag from the light cinder notch of row on top cover.
It is due to rotor high speed rotation, rotor block welding mode more fixed than bolt on rotor is relatively reliable, and this
The middle rotor block being laminated reduces radial height, and the rotor of the utility model to the rotor block of utility model compared with the prior art
Block cross section is in smooth crescent, makes the cotton-shaped impurity in mixed slurry be not easy to be wound on rotor block, reduces blocking screen
The probability in hole.
In addition, increasing the quantity of rotor block, the separating effect of fiber and impurity is improved, screening efficiency is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model pulp pressure scalping；
Fig. 2 is the structural schematic diagram of rotor in pressure coarse screen in the prior art；
Fig. 3 is the transverse sectional view of rotor in Fig. 2；
Fig. 4 is the B of the side of rotor in pressure coarse screen in Fig. 3 to partial view；
The structural schematic diagram of rotor in Fig. 5 the utility model pulp pressure scalping；
Fig. 6 is the transverse sectional view of rotor in Fig. 5；
Fig. 7 is the C of the side of rotor in pressure coarse screen in Fig. 6 to partial view；
In figure, 100- shell, 200- screen cylinder, 300- rotor, 400- pedestal, 500- bearing chamber bracket, 600- main shaft, 700-
Top cover, the good slurry outlet 101-, 702- arrange light cinder notch, 30- rotor, 31- rotor block assembly, 301- rotor block, L- bus, E- rotor
Steering.
Specific embodiment
It elaborates with reference to the accompanying drawings and embodiments to the utility model.
The schematic diagram of rotor in pressure coarse screen in the prior art as shown in Figures 2 to 4, each rotor block assembly 31 be by
Annular lug and wedge shaped projection stacking are constituted, and rotor block assembly 31 is fixed by bolts on rotor 30, the setting of rotor block assembly
Direction is axial consistent with rotor 30, and the radial height of the protrusion rotor circumferential surface of rotor block assembly 31 is larger, the wedge of outer layer
Shape lug surface is not only larger by the resistance of slurry when rotated, and rotor block assembly 31 directly makees the impurity in slurry
It is firmly larger, cause impurity to generate broken, the outer dimension of impurity becomes smaller, and quantity increases, removal efficiency decline.Meanwhile miscellaneous
When matter content is more, easily it is wrapped on rotor block assembly 31, and block screen cylinder, living load is caused to increase.Thus, the pressure
Electric current is higher at runtime for scalping, and electric current of the usual pressurized screen when operating normally is 320A~330A, and power consumption is larger.
Pulp pressure scalping as shown in Figure 1 is fixed with shell 100 on pedestal 400, and 100 upper end of shell is fixed with top cover
700, it is fixedly installed screen cylinder 200 in shell 100,100 top of shell is arranged and the good slurry outlet that is connected inside shell 100
101, the setting of 100 bottom of shell (is not shown with the stock inlet (not shown) and re-scheduling cinder notch being connected inside shell 100 in figure
Out), it is arranged on top cover 700 and the dilution mouth of a river that is connected inside shell 100 and arranges light cinder notch 702, is fixed with axis on pedestal 400
Room bracket 500 is held, main shaft 600 is rotatably equipped in bearing chamber bracket, rotor 300 is installed on main shaft 600, rotor 300 is located at
In screen cylinder 200, screen cylinder 200, rotor 300 and main shaft 600 are coaxially set, and main shaft 600 is connected by V-belt and motor drive
It connects.It is peripherally disposed on rotor 300 to have several rotor blocks 301, as shown in fig. 6, the cross section of rotor block 301 is crescent moon
Shape is looked in the direction C as shown in Figure 6 and Figure 7, is fixed on rotor in upper rotor block 301 inclination of the side developed surface of rotor
On 300, the lower end inclined direction of rotor block 300 is identical as the direction of rotation of rotor 300.The bus L of rotor block 300 and rotor it
Between angle α be 20 °~30 ° rotor blocks include upper layer rotor block, middle layer rotor block and lower layer along rotor axial direction uniform array
Rotor block, every layer of 301 quantity of rotor block is 5.The tilt angle of the utility model rotor is 20 °, at this point, pulp pressure
The running current of scalping is reduced to 180A~190A, greatly reduces power consumption.
In the present embodiment, screen cylinder 200 is rotated in a clockwise direction using hole sizer, rotor 300, is entered from stock inlet
Fiber-incorporated slurry enter screen cylinder 200 from bottom portion clockwise along inner walls tangential direction after, the pressure inside and outside screen cylinder 200
Power difference and the high speed rotation of rotor 300 up push fiber-incorporated slurry, while acceptable fiber constantly flows to outside screen cylinder 200,
Light impurity and air are discharged from the light cinder notch 702 of row on top cover 1, the re-scheduling of weight slag under gravitational and centrifugal forces from below
Cinder notch discharge.
Rotor block on the rotor of the pressure coarse screen of the utility model is that inclination is fixed, i.e. the lower end inclination of its rotor block
Direction is deviated to the left bus L, and the direction of rotation of rotor 300 rotates clockwise, i.e., the lower end inclined direction of rotor block 300 with
The direction of rotation of rotor 300 is identical, and as shown in figures 6 and 7, E indicates the steering of rotor 300, also along slurry
The direction of circulation, and the cross section of rotor block 300 is smooth crescent, and the radial height for protruding rotor 300 is smaller, from
It is seen in fluid mechanics principle, this structure largely reduces when rotor 300 rotates slurry to the resistance of rotor 300,
To reduce the running current of pressurized screen, and the rotor block 301 of the structure can aid in rotor 300 and push fiber mixing
Slurry rises to the top of pressure coarse screen, convenient for light slag from the light cinder notch discharge of row on top cover, meanwhile, rotor block assembly 301 is right
The direct active force of impurity in slurry is relatively small, do not easily lead to impurity generate it is broken, eliminate because impurity is broken cause it is miscellaneous
Prime number amount increases the factor for recycling impurity repeatedly, shortens impurity residence time in pressurized screen, greatly improves screening effect
Rate.
In the present embodiment, due to rotor high speed rotation, more by rotor block welding mode more fixed than bolt on rotor
Reliably, and the rotor block being laminated middle compared with the prior art of the rotor block of the utility model reduces radial height, makes to mix
The cotton-shaped impurity closed in slurry is not easy to be wound on rotor block, reduces the probability of blocking sieve pore.
The utility model is not limited to the above embodiment, all design, principle, structure and sides based on the utility model
Method, the various improvement made, is within the protection scope of the utility model.
Claims (5)
1. a kind of pulp pressure scalping, including pedestal, it is fixed with shell on the pedestal, the shell upper end is fixed with top cover,
Screen cylinder is fixedly installed in the shell, the upper part of the housing is provided with the good slurry outlet being connected with the enclosure interior, institute
It states housing bottom and is provided with the stock inlet being connected with enclosure interior and re-scheduling cinder notch, be provided on the top cover and enclosure interior
The dilution mouth of a river being connected and the light cinder notch of row, which is characterized in that
It is fixed with bearing chamber bracket on the pedestal, is rotatably equipped with main shaft in the bearing chamber bracket, it is fixed on the main shaft
There is rotor, the rotor is located in the screen cylinder, and the screen cylinder, the rotor and the main shaft are coaxially set, the rotation
Peripherally disposed on the wing to have several rotor blocks, the cross section of the rotor block is the crescent of convex, the rotor block
Inclination is fixed on the outer peripheral surface of the rotor, and the direction of rotation phase of the lower end inclined direction of the rotor block and rotor
Together.
2. pulp pressure scalping described in accordance with the claim 1, which is characterized in that the bus of the rotor block and the rotor it
Between angle be 20 °~30 °.
3. pulp pressure scalping described in accordance with the claim 1, which is characterized in that the main shaft passes through V-belt and motor drive
Connection.
4. pulp pressure scalping described in accordance with the claim 1, which is characterized in that the rotor block welding is in the outer of the rotor
On circumferential surface.
5. pulp pressure scalping described in accordance with the claim 1, which is characterized in that the rotor block includes axially uniform along rotor
Upper layer rotor block, middle layer rotor block and the lower layer's rotor block of array, every layer of rotor number of blocks is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821018133.1U CN208455351U (en) | 2018-06-28 | 2018-06-28 | Pulp pressure scalping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821018133.1U CN208455351U (en) | 2018-06-28 | 2018-06-28 | Pulp pressure scalping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208455351U true CN208455351U (en) | 2019-02-01 |
Family
ID=65168795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821018133.1U Expired - Fee Related CN208455351U (en) | 2018-06-28 | 2018-06-28 | Pulp pressure scalping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208455351U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116695480A (en) * | 2023-07-25 | 2023-09-05 | 新乡市新平航空机械有限公司 | Modular combined pressure screen |
| CN117107534A (en) * | 2023-09-13 | 2023-11-24 | 山东省壮丰环境工程有限公司 | a pressure screen |
-
2018
- 2018-06-28 CN CN201821018133.1U patent/CN208455351U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116695480A (en) * | 2023-07-25 | 2023-09-05 | 新乡市新平航空机械有限公司 | Modular combined pressure screen |
| CN117107534A (en) * | 2023-09-13 | 2023-11-24 | 山东省壮丰环境工程有限公司 | a pressure screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190201 Termination date: 20210628 |