CN103711019A - Coarse screen - Google Patents
Coarse screen Download PDFInfo
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- CN103711019A CN103711019A CN201310750749.3A CN201310750749A CN103711019A CN 103711019 A CN103711019 A CN 103711019A CN 201310750749 A CN201310750749 A CN 201310750749A CN 103711019 A CN103711019 A CN 103711019A
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- screen cylinder
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- screening drum
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Abstract
The invention belongs to the field of special devices for making paper and pulp and particularly relates to a coarse screen. The coarse screen comprises an upper shell and a lower shell. Supporting legs are arranged at the bottom of the lower shell. An upper screening drum and a lower screening drum are arranged in the upper shell and the lower shell respectively. The upper screening drum and the lower screening drum are fixed to the upper shell and the lower shell respectively through press rings. The press ring fixing the upper screening drum is located at the bottom of the upper screening drum. The press ring fixing the lower screening drum is located at the top of the lower screening drum. Rotors are arranged in the upper screening drum and the lower screening drum. Belt wheels are arranged at the bottoms of the rotors. The belt wheels are connected with a motor belt wheel through a transmission belt. The motor belt wheel is connected with a motor which is installed at a bottom rail. A feeding opening and a good pulp outlet are formed between the upper shell and the lower shell respectively by corresponding to the rotors. The upper portion of the upper shell and the lower portion of the lower shell are provided with tail pulp outlets respectively. The coarse screen is stable in operation and capable of improving screening quality, reducing energy consumption, enlarging the contact face between the pulp and the screening drums and improving the cleaning effect. The rotors are provided with smooth curve rotation wings in an up-and-down mode, wherein the smooth curve rotation wings are connected in an end-to-end mode. The rotors are prevented from being abraded severely due to excessive impurities and the service life of the rotors is greatly prolonged.
Description
Technical field
The present invention relates to a kind of scalping, belong to paper-making pulping special equipment field.
Background technology
In papermaking pulping system, screening slagging-off link is most important, and the screening degree direct influence of slurry arrives the quality of paper, and then has influence on production efficiency and the profit of enterprise.At the screening stage of various waste paper pulps, unrivaled works fine performance and reliable that pressurized screen has due to himself, become increasing client's first-selected screening installation.
Scalping is the conventional screening installation being placed in pulping system before fine screen and net fore worker, is used for removing impurity larger in paper pulp, as a scrap of paper, plastic sheet etc.The scalping of now domestic production adopts the design that single screen cylinder, housing are cylinder-like structure mostly, in use find that such scalping screening effect is poor, energy consumption is large, screening concentration is low, production efficiency is low,, compare and have a long way to go with same kind of products at abroad.The more and more strong and user of market competition, paper is required the today of day by day improving, be more and more difficult to meet the approval of client to this kind equipment.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of compact conformation reasonable, operate steadily, can improve the scalping of screening quality.
Scalping of the present invention, comprise upper shell and lower house, lower house bottom arranges supporting leg, on, in lower house, arrange respectively, lower screen cylinder, on, lower screen cylinder is all fixed on by pressure ring, on lower house, the pressure ring of fixing upper screen cylinder is positioned at screen cylinder bottom, the pressure ring of fixing lower screen cylinder is positioned at the top of lower screen cylinder, on, in lower screen cylinder, rotor is set, rotor bottom arranges belt wheel, belt wheel connects motor by driving belt, motor is arranged on end rail, on, between lower house, respective rotor arranges charging aperture and the outlet of good slurry, upper shell top and lower house bottom arrange respectively tail slurry mouth.
Upper shell can be arranged to trapezoidal, and lower house can be symmetrical arranged with upper shell, makes good slurry chamber up and down little, broad in the middle, makes screening pressure balanced, operates steadily; Compact conformation is reasonable, and stress equalization can improve screening effect; The machine adopts outer-flowing type structure, under a complete totally enclosed state, with the equipment of pressure step sizing; Slurry enters in sieve nest from casing middle part tangent line with certain pressure, slurry is divided into two parts, and a part flows to upper screen cylinder, and a part flows to lower screen cylinder, under the positive negative pulse stuffing producing at rotor and the effect of the pressure differential inside and outside screen cylinder, good pulp fibres is got married and start a new life and is starched a mouthful discharge by screen cylinder.By the tail slurry of sieve aperture, from upper and lower two tangential tail slurry mouths, do not discharge.Like this, effectively shorten the time of staying in impurity Shai district on the one hand, reduced the possibility of impurity recycling, improved screening effeciency; Prevent that on the other hand heavy seeds from causing damage to rotor, screen cylinder, the service life of extension device.
Described upper and lower screen cylinder includes screen cylinder body, and screen cylinder body is made as corrugated, and corrugated screen cylinder body comprises rod, and through hole is set between rod, and rod is all positioned at corrugated screen cylinder body inner side, and corrugated screen cylinder body peripheral distribution has reinforcing ring.Screen cylinder body surface is designed to ripple type, can increase the contact-making surface of slurry and screen cylinder body, the cleaning performance of screen cylinder is good, good slurry reduces by the resistance of screen cylinder body, increased good slurry throughput, make whole screen cylinder be utilized most effectively simultaneously, reinforcing ring the intensity that has guaranteed screen cylinder body is set; Through the test in paper plant, the screening capacity of corrugated screen cylinder improves 5% to 10% than traditional screen cylinder, and also had and significantly improved service life.
Described rotor comprises symmetrically arranged rotor top and rotor bottom, in between rotor top and rotor bottom, installing hole is set, on the lateral wall of rotor top and rotor bottom, have end to end smooth curve rotor on all, at the end to end place of adjacent smooth curve rotor to being welded with wearing layer.On the sidewall of rotor top and rotor bottom, be distributed with up and down end to end smooth curve rotor, can avoid impurity too much to cause rotor serious wear, greatly improved service life; Line, the long impurity of rope class can not hang on smooth curve rotor, make equipment operation more steady; Prevent smooth curve rotor from smashing impurity and by screen cylinder, cause the energy consumption of follow-up equipment to increase; Slurry is mixed, avoided concentration phenomena, make slurry faster by screen cylinder, improved production efficiency; Curvilinear motion is level and smooth, and smooth curve rotor produces uninterrupted action of low-voltage pulse while rotating, and negative pressure is little and the duration is long, is conducive to clean screen cylinder, improves output; To being welded with wearing layer, can improve rotor life, reduce production costs.
Described motor is arranged on electric machine support, between electric machine support and end rail, installs and regulates jackscrew, and driving belt is V-belt.Electric machine support bottom is fixed on end rail, by regulating jackscrew to adjust the elasticity of V-belt, and then the normal operation of the equipment of assurance.
Described upper shell top arranges cover, and cover both sides arrange hanger.Hanger is arranged at cover top, can facilitate the dismounting of cover, is convenient to the maintenance of the cleaning of device interior, the replacing of screen cylinder and equipment.
The invention has the beneficial effects as follows:
Compactness rational in infrastructure, operates steadily, and can improve screening quality; Aspect screening effect, production capacity, having great raising, energy consumption obviously reduces; Adopt corrugated screen cylinder, can increase the contact-making surface of slurry and screen cylinder, to improve cleaning performance; Rotor is distributed with end to end smooth curve rotor up and down, can avoid impurity too much to cause rotor serious wear, has greatly improved service life; Line, the long impurity of rope class can not hang on smooth curve rotor, make equipment operation more steady; Prevent smooth curve rotor from smashing impurity and by screen cylinder, cause the energy consumption of follow-up equipment to increase; Slurry is mixed, avoided concentration phenomena, make slurry faster by screen cylinder, improved production efficiency, reduce production costs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of upper and lower screen cylinder in Fig. 1.
Fig. 3 is the plan structure schematic diagram of Fig. 2.
Fig. 4 is the structure for amplifying schematic diagram at A place in Fig. 3.
Fig. 5 is the structural representation of Fig. 1 rotor.
Fig. 6 is the plan structure schematic diagram of Fig. 5.
Fig. 7 is the structure for amplifying schematic diagram at B place in Fig. 6.
In figure: 1, cover 2, hanger 3, upper shell 4, upper screen cylinder 5, rotor 6, pressure ring 7, lower house 8, lower screen cylinder 9, motor 10, electric machine support 11, end rail 12, adjusting jackscrew 13, driving belt 14, supporting leg 15, belt wheel 16, tail slurry mouth 17, good slurry outlet 18, charging aperture 19, screen cylinder body 20, reinforcing ring 21, rod 22, through hole 23, rotor top 24, smooth curve rotor 25, rotor bottom 26, installing hole 27, wearing layer.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Fig. 1～Fig. 7, scalping of the present invention, comprise upper shell 3 and lower house 7, lower house 7 bottoms arrange supporting leg 14, on, in lower house, arrange respectively, lower screen cylinder, on, lower screen cylinder is all fixed on by pressure ring 6, on lower house, the pressure ring 6 of fixing upper screen cylinder 4 is positioned at screen cylinder 4 bottoms, the pressure ring 6 of fixing lower screen cylinder 8 is positioned at the top of lower screen cylinder 8, on, in lower screen cylinder, rotor 5 is set, rotor 5 bottoms arrange belt wheel 15, belt wheel 15 connects motor 9 by driving belt 13, motor 9 is arranged on end rail 11, on, between lower house, respective rotor 5 arranges charging aperture 18 and good slurry outlet 17, upper shell 3 tops and lower house 7 bottoms arrange respectively tail slurry mouth 16.Upper and lower screen cylinder includes screen cylinder body 19, and screen cylinder body 19 is made as corrugated, and corrugated screen cylinder body comprises rod 21, and through hole 22 is set between rod 21, and rod 21 is all positioned at corrugated screen cylinder body inner side, and corrugated screen cylinder body peripheral distribution has reinforcing ring 20.Rotor 5 comprises symmetrically arranged rotor top 23 and rotor bottom 25, in between rotor top 23 and rotor bottom 25, installing hole 26 is set, on the lateral wall of rotor top 23 and rotor bottom 25, have end to end smooth curve rotor 24 on all, at the end to end place of adjacent smooth curve rotor 24 to being welded with wearing layer 27.Motor 9 is arranged on electric machine support 10, between electric machine support 10 and end rail 11, installs and regulates jackscrew 12, and driving belt 13 is V-belt.Upper shell 3 tops arrange cover 1, and cover 1 both sides arrange hanger 2.
During work, starter motor 9, motor 9 drives driving belt 13 to rotate, and driving belt 13 band movable belt pulleys 15 rotate, and belt wheel 15 rotor drivens 5 rotate, slurry enters in sieve nest from tangent line between upper and lower casing with certain pressure, slurry is divided into two parts, and a part flows to upper screen cylinder 4, and a part flows to lower screen cylinder 8, under the positive negative pulse stuffing producing in rotor 5 rotations and the effect of the pressure differential inside and outside screen cylinder, good pulp fibres is got married and start a new life and is starched outlet 17 discharges by screen cylinder.By the tail slurry of sieve aperture, from upper and lower two tangential tail slurry mouths 16, do not discharge.
Claims (5)
1. a scalping, it is characterized in that: comprise upper shell (3) and lower house (7), lower house (7) bottom arranges supporting leg (14), on, in lower house, arrange respectively, lower screen cylinder, on, lower screen cylinder is all fixed on by pressure ring (6), on lower house, the pressure ring (6) of fixing upper screen cylinder (4) is positioned at screen cylinder (4) bottom, the pressure ring (6) of fixing lower screen cylinder (8) is positioned at the top of lower screen cylinder (8), on, rotor (5) is set in lower screen cylinder, rotor (5) bottom arranges belt wheel (15), belt wheel (15) connects motor (9) by driving belt (13), motor (9) is arranged on end rail (11), on, respective rotor between lower house (5) arranges charging aperture (18) and good slurry outlet (17), upper shell (3) top and lower house (7) bottom arrange respectively tail slurry mouth (16).
2. scalping according to claim 1, it is characterized in that: upper and lower screen cylinder includes screen cylinder body (19), screen cylinder body (19) is made as corrugated, corrugated screen cylinder body comprises rod (21), through hole (22) is set between rod (21), rod (21) is all positioned at corrugated screen cylinder body inner side, and corrugated screen cylinder body peripheral distribution has reinforcing ring (20).
3. scalping according to claim 1 and 2, it is characterized in that: rotor (5) comprises symmetrically arranged rotor top (23) and rotor bottom (25), in between rotor top (23) and rotor bottom (25), installing hole (26) is set, on the lateral wall of rotor top (23) and rotor bottom (25), have end to end smooth curve rotor (24) on all, at the end to end place of adjacent smooth curve rotor (24) to being welded with wearing layer (27).
4. scalping according to claim 3, is characterized in that: it is upper that motor (9) is arranged on electric machine support (10), between electric machine support (10) and end rail (11), installs and regulates jackscrew (12), and driving belt (13) is V-belt.
5. according to the scalping described in claim 1,2 or 4, it is characterized in that: upper shell (3) top arranges cover (1), cover (1) both sides arrange hanger (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750749.3A CN103711019B (en) | 2013-12-31 | 2013-12-31 | Scalping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750749.3A CN103711019B (en) | 2013-12-31 | 2013-12-31 | Scalping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103711019A true CN103711019A (en) | 2014-04-09 |
| CN103711019B CN103711019B (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310750749.3A Active CN103711019B (en) | 2013-12-31 | 2013-12-31 | Scalping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103711019B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711019B (en) * | 2013-12-31 | 2016-01-27 | 山东晨钟机械股份有限公司 | Scalping |
| CN108411676A (en) * | 2018-05-30 | 2018-08-17 | 山东杰锋机械制造有限公司 | Energy-efficient paper pulp coarse sizing system |
| CN108677583A (en) * | 2018-07-17 | 2018-10-19 | 玖龙纸业(重庆)有限公司 | Annular screen and its application in pressurized screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3785495A (en) * | 1971-08-16 | 1974-01-15 | Finckh H Metalltuch Maschfab | Pressure filter for fibrous suspensions |
| US3898157A (en) * | 1973-03-23 | 1975-08-05 | Hooper & Co Ltd S W | Two stage pressure pulp screen device with stationary cylindrical screen |
| CN101058954A (en) * | 2007-05-22 | 2007-10-24 | 李风宁 | Multi-stage single drum rotor pressure screen |
| CN201132912Y (en) * | 2007-12-12 | 2008-10-15 | 中冶纸业银河有限公司 | Pressure screen rotor |
| CN201648840U (en) * | 2010-04-08 | 2010-11-24 | 山东杰锋机械制造有限公司 | Special pressurized screen for speciality paper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711019B (en) * | 2013-12-31 | 2016-01-27 | 山东晨钟机械股份有限公司 | Scalping |
-
2013
- 2013-12-31 CN CN201310750749.3A patent/CN103711019B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3785495A (en) * | 1971-08-16 | 1974-01-15 | Finckh H Metalltuch Maschfab | Pressure filter for fibrous suspensions |
| US3898157A (en) * | 1973-03-23 | 1975-08-05 | Hooper & Co Ltd S W | Two stage pressure pulp screen device with stationary cylindrical screen |
| CN101058954A (en) * | 2007-05-22 | 2007-10-24 | 李风宁 | Multi-stage single drum rotor pressure screen |
| CN201132912Y (en) * | 2007-12-12 | 2008-10-15 | 中冶纸业银河有限公司 | Pressure screen rotor |
| CN201648840U (en) * | 2010-04-08 | 2010-11-24 | 山东杰锋机械制造有限公司 | Special pressurized screen for speciality paper |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711019B (en) * | 2013-12-31 | 2016-01-27 | 山东晨钟机械股份有限公司 | Scalping |
| CN108411676A (en) * | 2018-05-30 | 2018-08-17 | 山东杰锋机械制造有限公司 | Energy-efficient paper pulp coarse sizing system |
| CN108411676B (en) * | 2018-05-30 | 2023-07-18 | 山东杰锋机械制造有限公司 | High-efficiency energy-saving pulp coarse screening system |
| CN108677583A (en) * | 2018-07-17 | 2018-10-19 | 玖龙纸业(重庆)有限公司 | Annular screen and its application in pressurized screen |
| CN108677583B (en) * | 2018-07-17 | 2023-09-05 | 玖龙纸业(重庆)有限公司 | Annular screen and application thereof in pressure screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103711019B (en) | 2016-01-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Coarse screen Effective date of registration: 20211009 Granted publication date: 20160127 Pledgee: Huantai Shandong rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG CHENZHONG MACHINERY Co.,Ltd. Registration number: Y2021980010397 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |