CN102051837B - Screen cylinder and multistage pulp pressure screen with same - Google Patents
Screen cylinder and multistage pulp pressure screen with same Download PDFInfo
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- CN102051837B CN102051837B CN201010543705.XA CN201010543705A CN102051837B CN 102051837 B CN102051837 B CN 102051837B CN 201010543705 A CN201010543705 A CN 201010543705A CN 102051837 B CN102051837 B CN 102051837B
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- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 2
- 229920001131 Pulp (paper) Polymers 0.000 description 16
- 238000012216 screening Methods 0.000 description 16
- 239000002994 raw material Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 5
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 239000011440 grout Substances 0.000 description 4
- 241000219000 Populus Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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Abstract
The invention provides a composite type screen cylinder and a multistage pressure screen with the same. The screen cylinder comprises at least two screen cylinder units which are sequentially arranged along the axial direction, wherein axial center lines of various screen cylinder units are coincident with each other; the inside diameters of the screen cylinder units are progressively increased along the axial direction; bottom ends of the previous stage of screen cylinder units are connected with top ends of the next stage of screen cylinder units through connectors; various screen cylinders connected with the connectors can realize the overall movement relative to a pressure screen shell; and liquid flow channels are arranged between two stages of screen cylinders. The screen cylinder has the advantages of simple structure and convenience in disassembly, washing and maintenance when applied to the multistage screen. Moreover, the composite type screen cylinder can be assembled and disassembled as a whole, so that the problem of complex operation of assembly and disassembly in the prior art when the screen cylinders on the lower layer are washed or maintained is solved.
Description
Technical field
The present invention relates to papermaking equipment field, be specifically related to a kind of screen cylinder and there is the multistage pulp pressure sieve of this screen cylinder.
Technical background
Papermaking is daily necessities indispensable in mankind's daily life.But papermaking is again an industry that investment is large, energy consumption is high, seriously polluted, raw materials consumption is larger.For paper industry, raw material resources are the most key problems.At present, what paper making raw material generally adopted is timber, but can cut down the age of tree that generally all needs at least 30 years as the timber of paper making raw material, the particularly anxiety so the supply of paper making raw material just seems.In order to address the above problem, China has implemented the Long-and Medium-term Development planning of " developing on a large scale fast-growing poplar; carry out woods slurry paper integrated " at northern area, built a collection of fast-growing poplar Plantation For Paper-making base, and it has alleviated the particularly nervous situation of paper making raw material supply to a certain extent; But for this fast-growing poplar growth, its growth cycle also needs just can reach and can cut down the age of tree at least 10 years, so it cannot fundamentally solve the problem that paper making raw material is in short supply equally.Therefore,, if can reclaim and effectively process slurrying waste paper, that will save paper making raw material to a great extent.
Pulp pressure sieve is the equipment that secondary stock is screened, and by using this equipment can remove the impurity such as slurry group, fibre bundle in secondary stock, thereby obtains the good slurry product of suitable papermaking.From its structure, pulp pressure sieve is made up of columnar screen cylinder and the rotor that is arranged in described screen cylinder internal cavities, in the time of rotor, epitrochanterian rotor is producing waterpower pulse near sieve plate place, make the good slurry that contains a large amount of fibers by sieve plate, the moment suction pulse producing while simultaneously relying on rotor wing rotation purifies screen cylinder.
In prior art, Chinese patent CN2670418Y discloses a kind of rotor screen for paper pulp filter, it comprises outer screen shell, it is outside and with screen cylinder, the power drive main shaft of the concentricity axis of sieve shell and be arranged on the rotor rotor on main shaft to be positioned at sieve shell, on the sidewall of described sieve shell, be provided with good slurry outlet, the elongated lattice-shaped sieve seam of offering longitudinal distribution on screen cylinder wall is provided with 4-6 rotor rotor in described driving main shaft.Owing to being only provided with a screen cylinder in this selectifier, be uniprocessing so it takes the processing of secondary stock, but by still retaining the useful fiber of a part the waste residue of discharging from slag notch after uniprocessing, so just caused the waste of resource; Along with the development of papermaking equipment technology, multistage pulp pressure sieve has replaced single-stage sieve gradually.
In prior art, the inventor has applied for the patent of invention that application number is 200510043356.4 on April 17th, 2005, this patent discloses a kind of multistage sieve for paper pulp, comprise housing, the rotor armature spindle of rotation is set and is driven by power set along housing axis, on described rotor armature spindle, be provided with at least two rotor rotors, the medial surface of housing is provided with at least two annular screen cylinders corresponding to the position of rotor, and the liquid collecting cavity in screen cylinder outside is provided with the grout outlet of the paper pulp after outside output screening; Housing between the screen cylinder of described annular is provided with the water inlet for diluted pulp, described water inlet and screen cylinder intracavity inter-connection; One end of described housing is provided with magma stock inlet, the other end of described housing is provided with tail slurry grout outlet, the grout outlet of described rear one-level screen cylinder is connected to the screening stock inlet being arranged on before previous stage screen cylinder by stock line, the low paper pulp of fibre-bearing amount that like this, the grout outlet of one-level screen cylinder is discharged can be back to previous stage screen cylinder, discharge by the plasma discharge mouth from previous stage screen cylinder after screen cylinder with entering together with slurry of previous stage screen cylinder, obtain the paper pulp that fiber content is higher, rather than discharge separately paper pulp inferior.
In above-mentioned multistage sieve for paper pulp, three grades of screen cylinders that use are all screen cylinders independently separately, in prior art, international patent application WO99/28549A1 discloses a kind of pulp pressure sieve, described pulp pressure sieve comprises housing, is positioned at the rotor of housing and the screen cylinder that at least two are arranged in order along axis direction, described screen cylinder and rotor coaxial setting; Paper pulp enters screen cylinder from one end of described pulp pressure sieve, the waste residue sifting is discharged from the other end of described pulp pressure sieve, from the profile of the described pulping pressure sieve shown in this patent documentation, can be clear that, between hatching between described multiple screen cylinder, disconnect, so above-mentioned multiple screen cylinder is also screen cylinder independently separately.
Visible, the multiple screen cylinders that arrange in multistage sieve for paper pulp of the prior art, between described multiple screen cylinder, there is not any annexation, thereby each screen cylinder forms one-level screening, when using a period of time, need to clean or in the time that screen cylinder breaks down screen cylinder the multistage sieve of slurrying, especially need to clean or break down away from a screen cylinder of top cover time, after top cover need to being opened, the all screen cylinders that are positioned at this layer of screen cylinder upper strata are all dismantled, just the screen cylinder that is positioned at bottom can be taken out and cleans or keep in repair, and after being disposed, also need successively multiple screen cylinders to be put into housing again and install, strengthen so to a great extent the operation easier of cleaning or keeping in repair.
And in pulp technology for making paper, have and much easily cause screen cylinder to stop up the factor that needs cleaning or keep in repair, comprising: the first, the variation of the variation of the variation of waste paper pulp quality, concentration, temperature; The second, enter the variation of slurry and pulp pressure when slurrying; Three, the water yield of thinned water and the variation of pressure; Four, rotor rotor produces wearing and tearing in process of production, and it cannot be struck off immediately to the slurry sticking on screen cylinder.So, due to above-mentioned factor, making in the time that Practical Project uses, the number of times that need to screen cylinder be cleaned or be keeped in repair is very frequently.
Summary of the invention
Technical problem to be solved by this invention is in multistage sieve for paper pulp of the prior art, adopt multistage independently screen cylinder to carry out multistage screening processing to secondary stock, but in the time that the screen cylinder that is positioned at device lower floor is cleaned or is keeped in repair, after the multiple screen cylinders that are located thereon portion need to being taken out gradually, just the screen cylinder of to be cleaned or maintenance can be taken out, after pending, again the multiple screen cylinders that are located thereon portion are installed successively, so greatly increase the operation easier that multistage sieve for paper pulp is cleaned or keeped in repair, and then provide a kind of simple in structure, and convenient for maintaining and the multistage sieve for paper pulp of unpicking and washing.
In order to solve the problems of the technologies described above, the invention provides a kind of combined type screen cylinder, comprise at least two screen cylinder unit that are in axial direction arranged in order, the longitudinal center line of each described screen cylinder unit overlaps;
In axial direction, the internal diameter of each described screen cylinder unit increases progressively;
And the bottom of upper level screen cylinder unit is realized and being connected by connector with the top of next stage screen cylinder unit, and the each screen cylinder connecting by described connector can be realized the integrated moving with respect to pressurized screen housing.
Described connector is closed annular bracing frame.
On described connector, be provided with liquid communication passage.
In axial direction, the bottom of described upper level screen cylinder unit is higher than the top of described next stage screen cylinder unit.
In axial direction, the top of the bottom of described upper level screen cylinder unit and described next stage screen cylinder unit is positioned on same level line.
Each described screen cylinder unit is multilayer.
It comprises housing, housing one deck screen cylinder is radially at least set, on described housing, be provided with magma stock inlet, tail slurry outlet and at least one good slurry outlet;
On the housing between every two adjacent screen cylinder unit, be provided with the water inlet for diluted pulp;
Be provided with the rotor axle being driven by Power Drive Unit at described screen cylinder cavity inside, on described rotor axle, be provided with rotor rotor;
In the end walls of the each described screen cylinder unit of one deck screen cylinder at least, be fixedly connected with respectively at least two locating flanges of setting, between described locating flange and described inner walls, realize the isolating seal to each screen cylinder unit by sealing device;
Along the disassembly direction of screen cylinder, the flange that the minimum diameter place in the described housing that described screen cylinder passes through is suitable for Ji Qi two ends, the screen cylinder unit setting of described maximum outside diameter passes through.
Along the axial direction of described screen cylinder unit, the bottom of described upper level screen cylinder unit is higher than the top of described next stage screen cylinder unit.
Along the axial direction of described screen cylinder unit, the top of the bottom of described upper level screen cylinder unit and described next stage screen cylinder unit is positioned on same level line.
Each described screen cylinder unit is multilayer.
The invention has the advantages that:
(1) the combined type screen cylinder described in the present invention, comprises at least two screen cylinder unit that are in axial direction arranged in order, and the longitudinal center line of each described screen cylinder unit overlaps; In axial direction, the internal diameter of each described screen cylinder unit increases progressively; And the bottom of upper level screen cylinder unit is realized and being connected by connector with the top of next stage screen cylinder unit, the each described screen cylinder that described connector connects can be realized the integrated moving with respect to pressurized screen housing.Screen cylinder of the present invention is when for multistage pulp pressure sieve, in the time that needs clean or keep in repair screen cylinder, can be used as an entirety mounts and dismounts, convenient for dismounting and washing and maintenance, effectively solve in prior art in the time that the screen cylinder that is positioned at device lower floor is cleaned or keeped in repair, after the multiple screen cylinders that are located thereon portion need to being taken out one by one, just the screen cylinder of to be cleaned or maintenance can be taken out, after being disposed, the more multiple screen cylinders that are located thereon portion are installed successively to complicated operation and greatly affected the problem of slurrying efficiency.
(2) the combined type screen cylinder described in the present invention, arrange along axis direction, the bottom of described upper level screen cylinder unit is higher than the top of described next stage screen cylinder unit, or the bottom of described upper level screen cylinder unit is set and the top of described next stage screen cylinder unit is positioned on same level line, between described like this connector and screen cylinder, do not form any dead angle, can not accumulate screening reject, be conducive to the abundant processing to secondary stock.
(3) in the multistage pulp pressure sieve of the described combined type screen cylinder of use of the present invention, liquid communication passage is set on the connector between two-stage screen cylinder, paper pulp enters from screen cylinder inside like this, after screen cylinder screening, good slurry by screen cylinder flows to screen cylinder outside, fail to stay by the screening reject of screen cylinder the inner surface of screen cylinder, be moved to next stage screen cylinder in the poor effect of multistage sieve internal pressure; Between two-stage screen cylinder, be provided with the water inlet for diluted pulp, owing to being provided with liquid communication passage on described connector, therefore dilute screening reject the inside that dilution water can enter described screen cylinder by connector, and the screening reject after described dilution carries out next stage screening subsequently again.
In addition, in the end walls of each described screen cylinder unit, be fixedly connected with respectively at least two locating flanges of setting, between described locating flange and described inner walls, realize the isolating seal to each screen cylinder unit by sealing device, thereby realize multistage screening, strengthen the sealing of described flange and described housing junction by sealing device is set, prevented because repeatedly dismounting and mounting flange and cause pressurized screen sealing to be affected.
Accompanying drawing explanation
For content of the present invention is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
It shown in Fig. 1, is the schematic diagram of combined type screen cylinder of the present invention;
It shown in Fig. 2, is the schematic diagram that is provided with the combined type screen cylinder of liquid communication passage on connector of the present invention;
It shown in Fig. 3, is the profile that the combined type screen cylinder of 2 layers is all arranged in each screen cylinder of the present invention unit;
It shown in Fig. 4, is the cutaway view of multistage pulp pressure sieve of the present invention;
Wherein, Reference numeral is:
1a, 1b, 1c-screen cylinder unit, 2a, 2b-connector, 3-liquid communication passage, 4-housing, 5-magma stock inlet, 6a, 6b, the good slurry outlet of 6c-, 7-water inlet, 8-rotor axle, 9-rotor rotor, 10-locating flange, 11-sealing device, the outlet of 12-tail slurry, 13-slag-drip opening, 14-exhaust outlet.
The specific embodiment
Embodiment 1
As shown in Figure 1, described screen cylinder comprises three the screen cylinder unit 1a, 1b, the 1c that are in axial direction arranged in order to screen cylinder described in the present embodiment, and the longitudinal center line of described three screen cylinder unit overlaps; In axial direction, the internal diameter of described three screen cylinder unit increases progressively; In described three screen cylinder unit, the bottom of screen cylinder unit 1a is connected by connector 2a with the top of screen cylinder unit 1b, the bottom of screen cylinder unit 1b is connected by connector 2b with the top of screen cylinder unit 1c, three screen cylinders that connect by described connector can be realized the integrated moving with respect to pressurized screen housing 4, and the 2a of connector described in the present embodiment, 2b are closed annular bracing frame.
In the present embodiment, in axial direction, the bottom of described upper level screen cylinder unit is higher than the top of described next stage screen cylinder unit, as shown in Figure 1, as selectable embodiment, in axial direction, the top of the bottom of described upper level screen cylinder unit and described next stage screen cylinder unit also can be arranged to be positioned on same level line.
Embodiment 2
Screen cylinder described in the present embodiment as shown in Figure 2, the difference of screen cylinder described in screen cylinder described in the present embodiment and embodiment 1 is, in the present embodiment, connect on connector 2a, the 2b of described screen cylinder unit and be provided with liquid communication passage 3, the present embodiment arranges described liquid communication passage for circulation breach; Described liquid communication passage also can select to be set to the duct of opening on described connector, or other can realize the passage of liquid communication.
As selectable embodiment, multilayer also can be arranged in the each described screen cylinder unit in described combined type screen cylinder, and wherein, the different numbers of plies can be arranged in each described screen cylinder unit; As preferred embodiment, can select to arrange each described screen cylinder unit and be all 2 layers, as shown in Figure 3.
Multistage pulp pressure of the present invention sieves as shown in Figure 4, comprise housing 4, housing 4 be radially provided with one deck screen cylinder, described screen cylinder is provided with three the screen cylinder unit 1a, 1b, the 1c that are in axial direction arranged in order, the longitudinal center line of described three screen cylinder unit overlaps; In the present embodiment, in axial direction from top to bottom, the internal diameter of described three screen cylinder unit increases progressively; In described three screen cylinder unit, the bottom of screen cylinder unit 1a is connected by connector 2a with the top of screen cylinder unit 1b, the bottom of screen cylinder unit 1b is connected by connector 2b with the top of screen cylinder unit 1c, three screen cylinders that connect by described connector can be realized the integrated moving with respect to pressurized screen housing 4, connect on connector 2a, the 2b of described screen cylinder unit and are provided with liquid communication passage 3; In the present embodiment, arrange along the axial direction of described screen cylinder unit, the bottom of described upper level screen cylinder unit is higher than the top of described next stage screen cylinder unit; Individual layer is arranged in the unit of screen cylinder described in the present embodiment.
On described housing 4, be provided with magma stock inlet 5, tail slurry outlet 12, on housing 4 corresponding to screen cylinder unit 1a, 1b, 1c, be respectively arranged with good slurry outlet 6a, 6b, 6c;
On the housing 4 between every two adjacent screen cylinder unit, be provided with the water inlet 7 for diluted pulp;
Be provided with the rotor axle 8 being driven by Power Drive Unit at described screen cylinder cavity inside, on described rotor axle 8, be provided with rotor rotor 9;
In the end walls of the each described screen cylinder unit of one deck screen cylinder, be fixedly connected with respectively two locating flanges 10 are set, between described locating flange 10 and described housing 4 inwalls, realize the isolating seal to each screen cylinder unit by sealing device 11, described sealing device 11 can select to be set to sealing ring;
Multistage pulp pressure sieve described in the present embodiment is along the disassembly direction of screen cylinder, and the flange that the minimum diameter place in the described housing 4 that described screen cylinder passes through is suitable for Ji Qi two ends, the screen cylinder unit setting of described maximum outside diameter passes through.
As the embodiment that can convert, in axial direction from top to bottom, the internal diameter of described three screen cylinder unit also can be set to successively decrease.
The same embodiment as converting, along the axial direction of described screen cylinder unit, the top of the bottom of described upper level screen cylinder unit and described next stage screen cylinder unit can be arranged to be positioned on same level line; Multilayer also can be arranged in each described screen cylinder unit in described combined type screen cylinder, and wherein, the different numbers of plies can be arranged in each described screen cylinder unit.
The course of work of the multistage pulp pressure sieve described in the present embodiment is:
Paper pulp enters the inside of first order screen cylinder unit from described magma stock inlet 5, after the screening of described first order screen cylinder unit, flow to the outside of described screen cylinder by the good slurry of described screen cylinder unit, flow out by described good slurry outlet, unsanctioned screening reject is stayed the inner surface of described screen cylinder unit, and enter into next stage screen cylinder and again screen, dilution water enters in housing 4 by the water inlet 7 arranging between two-stage screen cylinder unit, owing to being provided with liquid communication passage 3 on the connector between described two-stage screen cylinder unit, therefore described dilution water enters into the inside of described screen cylinder by described liquid communication passage 3, described screening reject is diluted,
The good slurry obtaining after three grades of screen cylinder unit 1a, 1b, 1c screening is discharged from each self-corresponding good slurry outlet 6a, 6b, 6c respectively, and the rear remaining tail slurry of screening exports 12 by tail slurry and discharges;
In the process that paper pulp is screened, by the slag-drip opening 13 that is positioned at described pressurized screen bottom, foreign material heavier quality are discharged; Be provided with exhaust outlet 14 at the top of described housing 4, acting as of described exhaust outlet 14: in use, original state should be to fill the state of water to described pressurized screen, in the time pouring water, described exhaust outlet 14 is opened, be used for keeping external and internal pressure consistent, make water injection pressure sieve inner.
Obviously, above-mentioned embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And the apparent variation of being extended out thus or variation are still among the protection domain in the claims in the present invention.
Claims (10)
1. a combined type screen cylinder, is characterized in that, comprises at least two screen cylinder unit that are in axial direction arranged in order, and the longitudinal center line of each described screen cylinder unit overlaps;
In axial direction, the internal diameter of each described screen cylinder unit increases progressively;
And the bottom of upper level screen cylinder unit is realized and being connected by connector with the top of next stage screen cylinder unit, and the each screen cylinder connecting by described connector can be realized the integrated moving with respect to pressurized screen housing.
2. screen cylinder according to claim 1, is characterized in that, described connector is closed annular bracing frame.
3. screen cylinder according to claim 1, is characterized in that, is provided with liquid communication passage on described connector.
4. according to the arbitrary described screen cylinder of claim 1-3, it is characterized in that, in axial direction, the bottom of described upper level screen cylinder unit is higher than the top of described next stage screen cylinder unit.
5. according to the arbitrary described screen cylinder of claim 1-3, it is characterized in that, in axial direction, the top of the bottom of described upper level screen cylinder unit and described next stage screen cylinder unit is positioned on same level line.
6. according to the arbitrary described screen cylinder of claim 1-3, it is characterized in that, each described screen cylinder unit is multilayer.
7. the multistage pulp pressure sieve with screen cylinder described in claim 3, it comprises housing, housing one deck screen cylinder is radially at least set, on described housing, be provided with magma stock inlet, tail slurry outlet and at least one good slurry outlet;
On the housing between every two adjacent screen cylinder unit, be provided with the water inlet for diluted pulp;
Be provided with the rotor axle being driven by Power Drive Unit at described screen cylinder cavity inside, on described rotor axle, be provided with rotor rotor;
It is characterized in that,
In the end walls of the each described screen cylinder unit of one deck screen cylinder at least, be fixedly connected with respectively at least two locating flanges of setting, between described locating flange and described inner walls, realize the isolating seal to each screen cylinder unit by sealing device;
Along the disassembly direction of screen cylinder, the flange that the minimum diameter place in the described housing that described screen cylinder passes through is suitable for Ji Qi two ends, the screen cylinder unit setting of maximum outside diameter passes through.
8. multistage pulp pressure sieve according to claim 7, is characterized in that, along the axial direction of described screen cylinder unit, the bottom of described upper level screen cylinder unit is higher than the top of described next stage screen cylinder unit.
9. multistage pulp pressure sieve according to claim 7, is characterized in that, along the axial direction of described screen cylinder unit, the top of the bottom of described upper level screen cylinder unit and described next stage screen cylinder unit is positioned on same level line.
10. multistage pulp pressure sieve according to claim 7, is characterized in that, each described screen cylinder unit is multilayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010543705.XA CN102051837B (en) | 2010-11-15 | 2010-11-15 | Screen cylinder and multistage pulp pressure screen with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010543705.XA CN102051837B (en) | 2010-11-15 | 2010-11-15 | Screen cylinder and multistage pulp pressure screen with same |
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| Publication Number | Publication Date |
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| CN102051837A CN102051837A (en) | 2011-05-11 |
| CN102051837B true CN102051837B (en) | 2014-06-18 |
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| CN201010543705.XA Active CN102051837B (en) | 2010-11-15 | 2010-11-15 | Screen cylinder and multistage pulp pressure screen with same |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233896B (en) * | 2014-09-02 | 2016-07-06 | 郑州运达造纸设备有限公司 | A kind of air mix facilities for pressurized screen |
| CN105696400B (en) * | 2015-03-26 | 2018-04-03 | 潍坊信合达机械有限公司 | A kind of paper-making industry is sieved with combined pressure |
| CN105970713A (en) * | 2016-07-05 | 2016-09-28 | 李�昊 | Screening fluffer |
| CN106368038B (en) * | 2016-11-17 | 2017-11-24 | 绥阳县双龙纸业有限公司 | A kind of upward flow type pressure sieve |
| CN106480770B (en) * | 2016-12-23 | 2018-12-04 | 郑州运达造纸设备有限公司 | A kind of composite pressure sieve |
| JP7416589B2 (en) * | 2019-09-04 | 2024-01-17 | フォイト パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | multi-stage screen |
| CN116446212B (en) * | 2023-06-14 | 2023-09-01 | 山西云冈纸业有限公司 | Front vibrating frame screen of pulp flow net |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1659333A (en) * | 2002-06-07 | 2005-08-24 | 美佐纸业股份有限公司 | Multi-stage screening apparatus, screen basket and method for screening pulp suspensions |
| CN1696400A (en) * | 2005-04-17 | 2005-11-16 | 李风宁 | Multistage sieve for paper pulp |
| CN101883892A (en) * | 2007-11-30 | 2010-11-10 | 美卓制浆卡尔斯塔德公司 | Digester screen for a continuous cellulose pulp digester |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1239899A (en) * | 1997-12-01 | 1999-06-16 | Valmet Corporation | Pressure screen for screening pulp |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1659333A (en) * | 2002-06-07 | 2005-08-24 | 美佐纸业股份有限公司 | Multi-stage screening apparatus, screen basket and method for screening pulp suspensions |
| CN1696400A (en) * | 2005-04-17 | 2005-11-16 | 李风宁 | Multistage sieve for paper pulp |
| CN101883892A (en) * | 2007-11-30 | 2010-11-10 | 美卓制浆卡尔斯塔德公司 | Digester screen for a continuous cellulose pulp digester |
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