• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A rotary pulp screening device is disclosed which is less sensitive to variation in pulp flow, pulp consistency and pressure than existing pulp screens. The device is of the vertical pressure type and includes a cylindrical housing having an upper inlet chamber and a lower screening chamber with a disc ring dividing the upper chamber from the lower chamber, an inlet aperture in the upper chamber, a cylindrical screen mounted within the lower chamber, a rotary impeller mounted for rotation about a central vertical axis within the screen, the impeller being approximately in the form of a paraboloid, means for rotating the impeller, impeller blades radiating from the impeller and extending to within a short distance of the screen over the length of the screen, at least two dilution systems for diverting dilution water into different areas of the screen and a pulp discharge outlet from the lower chamber outside the pulp screen.
    公开号:SU1192632A3
    申请号:SU802925551
    申请日:1980-04-30
    公开日:1985-11-15
    发明作者:Вильям Хупер Энтони
    申请人:Юнивельд Инк (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to rotary sorting. Mass suspensions, namely, rotating devices for mass sorting with vertical pressure. A known rotating device for sorting a mass with a vertical pressure, comprising a cylindrical housing with an upper inlet chamber and with a lower sorting chamber and a disc ring separating them, an inlet opening in the upper chamber, a cylindrical sieve mounted inside the lower chamber, an agitator mounted inside the sieve can be rotated around the vertical axis by means of its drive shaft, on the case of which it is mounted with a gap relative to the sieve and radial loops located along its entire length Parts placed in pairs along the height of the agitator body with nozzle formation, an outlet for discharging the pulp from the lower chamber, a system for diluting liquid located at the point of passage of the blades and sieve mounted axially in height along the screen forming a sorting zone fiber, by waste disposal device installed under the ijv casing. The known device is inefficient. The purpose of the invention is to increase productivity. The goal is achieved by the fact that a rotating device for sorting mass with vertical pressure contains a cylindrical housing with an upper inlet chamber and a lower sorting chamber and a disk ring separating them, an inlet opening in the upper chamber a cylindrical sieve installed inside the lower chamber , mixer, Mounted inside the sieve with the possibility of rotation around the vertical axis of the casing by means of its drive shaft, on the body of which is installed with a gap relative to the sieve and the radial blades placed along its entire length, placed in pairs along the height of the agitator body with the formation of nozzles, an outlet for unloading fibrous mass from the lower chamber, a system for diluting liquid located at the point of passage of the blades and sieve axially along the height forming a sieve the fiber grading zone, the waste disposal chamber, installed under the hood, has an additional system for the diluting fluid, installed axially at the height of the screen above the first, system for forming traps the sorting zone, while the mixer has a parabolic shape. The waste disposal chamber is provided with a tangential outlet for waste disposal. . The waste disposal chamber is made as a separate module, with -i: attached to the base of the cylindrical housing. Between the blades there is a plate, dividing the nozzles into two spray systems. In Fig.1 schematically shows a device, a vertical section; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 2; figure 4 is a section bb In figure 1; FIG. 5 is a view of FIG. 4; figure 6 section dD in figure 1; figure 7 is a section of the EE in figure 4; on Fig.8 - section W in Fig.7; Fig. 9 is a system for a dilution fluid; Figure 10 is the same; 11 and 12, an agitator, embodiments. . The device contains a cylindrical casing 1 with a lid 2. Inside the casing 1, there are placed upper inlet 3 and lower sorting 4 chambers separated by a disk ring 5. Inlet pipe 6 with a flange 7 at the end provides an entrance to the spiral casing 8, which has a rectangular cross-section, Spiral the casing 8 has an upper 9 and a lower 10 surface .. If a trap for stones is provided in the device (FIGS. 2 and 3), then the lower surface 10 of the spiral casing 8 takes a horizontal position and the upper surface 9 is tilted down. and for stones it is not provided, the upper surface 9 takes a horizontal position, and the lower surface 10 is inclined. At the upper part of the spiral casing 8 there is an inlet 11 of the cylindrical casing 1. The aperture 11 passes around the periphery at a distance sufficient to allow the suspension of may31 to flow into the inlet chamber 3 without obstacles. The total area of the inlet 11 is determined by the amount of slurry entering the upper inlet chamber 3. The size of the aperture 11 also depends on the requirements for flow rate, taking into account that heavy objects do not have to pass into the upper inlet chamber. The opening 11 allows the suspension of the mass to enter the inlet chamber 3 so that a turbulence or vortex effect does not occur in the inlet chamber. At the end of the spiral casing 8 is a trap. 12 for grabbing stones or other large objects that do not pass through the opening 11. The stone trap 12 contains gate valves 13 and 14, between which there is a chamber 15. The dilution water pipe 16 is designed to supply torpedoing water in order to wash out good fibers from the trap 12 for stones and thus facilitating the entry of heavy materials. It is also useful to clean the chamber 15 when the gate valve is open .14. The conical inlet ring 17 contains at its largest diameter a lower flange 18 supported on the disk ring 5. Flange 18. Overlap the disk ring 5 so that the mass suspension entering the inlet chambers 3 must move up the conical side of the inlet ring 17 and pass over the rim 19 of small diameter down through the conical inlet ring 17 into the lower chamber 4, in which mixing takes place, and through the cylindrical wall of the sieve 20 - into the receiving chamber 21. The lock of 19 small diameter gives the suspension of mass a large The total acceleration in the direction of the lower chamber 4. The conical inlet ring 17 is located above the inlet 11, so that the inlet is always immersed, and the mass suspension entering the inlet chamber 3 always rises and passes over the rim 19 of the conical inlet ring 17. Around edges 19 there is always a uniform flow of suspension mass. The sorting device can operate at low static pressure (0.300, 60 m). The whirlwind breaker 22 is a two vertical cross-shaped 2 plates inserted into a conical inlet ring 17 to ensure a smooth flow of the suspension and to prevent the slurry of the slurry when it passes the rim 19 and falls into the lower chamber 4. the whirlwind may not be used. The cylindrical screen 20 is aligned with the {Lshney chamber 4 and extends over the entire height of the chamber. Inside the screen 20, a stirrer 23 is mounted, having a parabolic shape. The mixer 23 is mounted on a rotating axial shaft 24, which rotates in a bearing assembly 25 on the axis of a cylindrical screening device. A lower driving shaft end 26 is coupled to an electric motor. The blades 27 are located at equal distances from each other around the rotating agitators 23. The blades 27 do not reach the nose cone of the agitator, leaving a gap. above it, down to the conical ring 17 free of blades, resulting in a gradual increase in the radial velocity of the suspension of the mass as it enters the sorting chamber 4 and on the sieve 20. A gradual increase in the radial velocity prevents the fibers from clogging up the upper part of the sieve. The blades 27 move upwards from the point of connection with the mixer 23 to the rotating shaft. ring 28, connecting all the tips of the blades 27 of the agitator together at the top of the cylindrical sieve 20. The inner diameter of the ring a 28 is larger than the inner diameter of the conical inlet ring 17. Thus, the ring 28 does not prevent the mass from passing from the inlet ring 17 into the lower chamber 4. when the suspension mass enters the lower chamber 4, it is reflected by the nose cone of the agitator 23 to the surface of the cylindrical screen 20, the radial velocity gradually increases as the weight of the suspension of the blades 27 of the agitator rotates. A second blade 29 is attached to the mixer 23 at the point of attachment of the blades 27, which are located near the blades 27 with gaps 30 between them, resulting in the formation of a pair of blades. The top plate 31 overlaps the gap 30 between each pair of blades, and the middle plate 32 overlaps the gap 30 and is located approximately in the middle of the path down the blade m. The blades 27 and 29 run along the entire length of the agitator body to form nozzles 33.
    At the point of passage of the blades, there is a first system for a dilution fluid, having a conduit 34 for fluid inlet. The conduit 34 communicates with the inner annular chamber 35 surrounding the bearing assembly 25 of the shaft 24. The inner annular chamber 35 leads the dilution fluid to the inside of the agitator 23. The liquid exits the annular inner chamber 35. through a plurality of holes 36 formed in the upper and / or lateral surface inner annular chamber. Then the liquid passes outside through the nozzles 33 in the peripheral wall of the mixer 23, filling the gap between a pair of blades 27 and 29 above the middle plate 32 and leaking onto a sieve 20.
    Inside the agitator 23 there is a rotating ring 37 separating the first and second systems for the dilution liquid. The separating ring 27 is connected to the inner circumferential wall of the agitator 23 rotating near the stationary separating ring 38 connected to the outer surface of the inner annular chamber 35. There is a small gap between the rotating ring 37 and the fixed ring 38 so that the dilution liquid can pass between the first and second dilution systems. The first system for the diluting liquid is mounted axially but at the height of the sieve 20 and forms a fiber sorting zone with the sieve.
    A second, additional, system for the diluting fluid is installed axially along the height of the screen above the first system and forms the second sorting zone.
    The second system comprises a flanged inlet 39 and an inlet 40 liters of liquid leading to the outer annular chamber 41 surrounding the inner annular chamber 35, but passing only inside the lower part of the agitator 23. Openings 42 on the upper and / or lateral surface of the outer annular chamber 41 provide the possibility of flow
    the diluent liquid to the bottom and exit through the nozzles 33 in the peripheral wall of the mixer to the gap 30 between the pairs of blades 27 and 29 under the middle plate 32 and thus onto the sieve 20. The lower part 43 of the peripheral wall of the mixer 23 has a cylindrical shape so that the slurry remains containing waste is not accelerated when it passes through the lower part 43 of the mixer and falls into the chamber 44 to remove waste.
    The waste disposal chamber 44 is made as a separate module 45 attached to the base 46 of the cylindrical housing 1 and provided with a tangential outlet 47 for releasing waste (tangential outlet 47 has a port 48 for removing waste from chamber 44 and preventing clogging). At least one of the blades 27 of the agitator passes into the chamber 44 to remove the waste to ensure constant washing of the chamber.
    Fig. 9 shows an annular chamber 49 surrounding the shaft 24, which is divided into a number of compartments 50. Each compartment
    50 connected to separate source
    This fluid is connected to the inside of the agitator 23, which directs the diluent liquid to certain zones of the sieve for the mass. Fig. 10 shows another embodiment of the diluent liquid system: a plurality of tubes 52 extend upwardly into the agitators 23; each pipe 52 ends at a different height, which ensures that the diluent fluid is supplied to certain areas of the screen 20; each pipe 52 is connected to a separate source 53 of fluid. Nozzles of various types for blade pairs can be used to supply fluid to the mesh.
    (see Figs. 7 and 8), for example, you can use a thicker blade with radial holes passing through each blade into the inside of the rotor.
    The agitator 23 (fig-11) may be longer than the sieve 20 with the nose cone extending over the top hour of the sieve. The mixer 23 may be shorter than the sieve 20 (FIG. 12), the tip of the nose cone is lower than the top of the sieve.
    During the operation of the mass sorting device, the suspension of the mass is passed through the inlet pipe 6 into the spiral casing 8, in which it rises and passes into the inlet hole 11. As the suspension of Nfaccbi passes through the inlet 11, the velocity of the suspension of the mass changes the masses are reduced to allow stones and other heavy objects to fall into the stone trap 12. The pulp suspension rises laterally to the sides of the conical inlet ring 17, flows down over the rim 19 down into the sorting chamber 4. When the suspension of the mass flows through the inlet ring 17, the destroyer 22 vortex provides a small twist. The parabolic agitator 23 provides a reflection of the suspension of the mass to the sides of the agitator so that in the flow of the suspension of the mass passing into the sorting zone, there is little turbulence. As the slurry moves to the surface of the screen, the 20 blades of the agitator 27 rotate the slurry of the pulp and the normal sorting action J takes place during which the blades 27 rotate the pulp of the pulp and form a mat. fibers of the mass between the edges of the blades 27 and the sieve 20. The mat of fibers rotates relative to the sieve 20 and moves axially down into the waste disposal chamber 44. Due to the rotational and axial movement of the fiber mat between one side of the fiber mat and the tips of the blades 27 of the agitator, shearing occurs, determining the thickness of the fiber mat and preventing clogging of the holes of the cylindrical screen 20. The suitable fiber mass passes through the fiber mat formed by discarded fiber bundles and suitable fibers, and then through a sieve 20 into the receiving chamber 21. As the fiber mat moves down the sieve 20, the sorting operation completes the diluent first from the first system for diluting yoke, and then from the second .. The presence, a plurality of different zones in the mixer 23 for a plurality of thinning systems allows to have separate sources of dilution liquid, wherein one source may be at a higher pressure or higher. stream than other sources for maximum sorting efficiency. The waste is passed to the chamber 44 to remove the waste, from where it is discharged through an outlet. The sorted mass leaves the casing 1 through tangential exit 47 for further processing. The proposed device has high performance.
    i
    1
    ife. J
    Fig-5
    A-l
    52
    51
    49 50
    FIG. 9
    Fig / O
    权利要求:
    Claims (4)
    [1]
    1. A ROTATING DEVICE FOR SORTING MASS WITH VERTICAL PRESSURE, comprising a cylindrical casing with an upper inlet chamber and a lower sorting chamber and a disk ring separating them, an inlet located in the upper chamber, a cylindrical sieve installed inside the lower chamber, a stirrer, mounted inside the sieve with the possibility of rotation around the vertical axis of the casing by means of its drive shaft, on the casing of which there are installed radially Parts placed in pairs along the height of the mixer body with the formation of nozzles, an outlet for unloading the pulp from the lower chamber, a dilution fluid system located in the passage of the blades and mounted axially along the height of the sieve, forming a zone with a sieve, sorting fiber, chamber for waste disposal, installed under the casing, characterized in that, in order to · increase productivity, it has an additional system for diluting liquid Stem for the formation of the second sorting zone, while the mixer body has a parabolic shape. ·
    [2]
    2. The device according to claim 1, with the fact that the waste disposal chamber is provided with a tangential exit for the release of waste; E * *
    [3]
    3. The device according to claim 2 ’, characterized in that the waste disposal chamber is made in the form of a separate module attached to the base of the cylindrical casing.
    [4]
    4. The device according to claim 1, which is related to the fact that between the blades there is a plate dividing the nozzles into two liquid spraying systems.
    Q <O
    1 1192632 2
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1192632A3|1985-11-15|Revolving device for sorting mass with vertical pressure
    US4107033A|1978-08-15|Apparatus for cleaning fibrous suspensions of low stock consistency
    US3713536A|1973-01-30|Pressure pulp screen
    US3898157A|1975-08-05|Two stage pressure pulp screen device with stationary cylindrical screen
    US3174622A|1965-03-23|Apparatus for cleaning liquids containing in suspension solid particles and particularly cellulosic pulps
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    FI100728B|1998-02-13|Pulse-free strainer
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    US4737274A|1988-04-12|Tramp material separator
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    US1753502A|1930-04-08|Dust collector
    US4396160A|1983-08-02|Pulp dissolver for the production of pulp suspensions
    US4642189A|1987-02-10|Rotary screen of the vertical pressure type having pulp stock feed at different axial positions on the screen
    US4346007A|1982-08-24|Method at screening apparatus for cleaning the apertures in a screen plate and device for carrying out the method
    EP0100345B1|1986-05-07|Screen machine
    US5143220A|1992-09-01|Apparatus for screening to remove knots from a fluid borne slurry of fibers and knots
    同族专利:
    公开号 | 公开日
    DE3015833C2|1990-04-05|
    NO801287L|1980-11-04|
    AU529761B2|1983-06-16|
    MX151363A|1984-11-13|
    IT8021766D0|1980-05-02|
    JPS55152892A|1980-11-28|
    GB2048704A|1980-12-17|
    CA1138380A|1982-12-28|
    FI70059B|1986-01-31|
    FR2455651B1|1984-04-27|
    PL223986A2|1981-02-13|
    FI70059C|1986-09-12|
    AU5774680A|1980-11-06|
    ES491133A0|1981-06-01|
    IN153066B|1984-05-26|
    US4268381A|1981-05-19|
    DE3015833A1|1980-11-13|
    BR8002748A|1980-12-16|
    IT1130397B|1986-06-11|
    ATA229280A|1986-07-15|
    GB2048704B|1983-03-23|
    CH637029A5|1983-07-15|
    SE8003304L|1980-11-04|
    FR2455651A1|1980-11-28|
    ES8105588A1|1981-06-01|
    SE442413B|1985-12-23|
    PL124357B1|1983-01-31|
    NO152615B|1985-07-15|
    FI801354A|1980-11-04|
    JPS5953955B2|1984-12-27|
    BE883051A|1980-08-18|
    AT382407B|1987-02-25|
    NO152615C|1985-10-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    US3081873A|1960-11-16|1963-03-19|Cowan Elijah|Pulp screen with internal dilution rotor|
    US3243041A|1963-02-25|1966-03-29|Cowan Ben|Horizontal pressure type pulp screen|
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    US3363759A|1964-04-29|1968-01-16|Bird Machine Co|Screening apparatus with rotary pulsing member|
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    US3933649A|1971-03-01|1976-01-20|Ahlfors S E E|Apparatus for purifying and fractionating particle suspensions|
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    US4642189A|1983-12-12|1987-02-10|Uniweld Inc.|Rotary screen of the vertical pressure type having pulp stock feed at different axial positions on the screen|
    NO862682L|1985-09-11|1987-03-12|Ingersoll Rand Co|TERM APPARATUS.|
    US4697982A|1986-03-13|1987-10-06|Uniweld Inc.|Rotary pulp screen of the horizontal type having pulp stock feed at different axial positions on the screen|
    US4749475A|1986-10-23|1988-06-07|Uniweld, Inc.|Two stage rotary pulp screening device|
    FI82496C|1989-06-05|1991-03-11|Tampella Oy Ab|FOERFARANDE FOER REGLERING AV TRYCKSIL OCH TRYCKSIL.|
    FI91648C|1993-01-11|1994-07-25|Tampella Oy Valmet|An arrangement in a pressure sorter for separating impurities from the pulp fed to it|
    SE507905C2|1995-10-11|1998-07-27|Sunds Defibrator Ind Ab|Device for sieving pulp suspensions|
    US6155430A|1996-09-02|2000-12-05|Hoshen Water Technologies Ltd.|Filter|
    US6109450A|1998-03-17|2000-08-29|G-Wald-Taylor, Inc.|Apparatus for separating unwanted contaminants from fibrous slurry|
    US6324490B1|1999-01-25|2001-11-27|J&L Fiber Services, Inc.|Monitoring system and method for a fiber processing apparatus|
    AT408770B|2000-02-03|2002-03-25|Andritz Ag Maschf|SORTER FOR CLEANING A FIBER SUSPENSION|
    AT408773B|2000-02-03|2002-03-25|Andritz Ag Maschf|SCREEN AND METHOD FOR PRODUCING SUCH A SCREEN|
    AT408772B|2000-02-03|2002-03-25|Andritz Ag Maschf|SORTER FOR CLEANING A FIBER SUSPENSION|
    US6502774B1|2000-03-08|2003-01-07|J + L Fiber Services, Inc.|Refiner disk sensor and sensor refiner disk|
    US6778936B2|2000-03-08|2004-08-17|J & L Fiber Services, Inc.|Consistency determining method and system|
    US6938843B2|2001-03-06|2005-09-06|J & L Fiber Services, Inc.|Refiner control method and system|
    US6752165B2|2000-03-08|2004-06-22|J & L Fiber Services, Inc.|Refiner control method and system|
    AT413390B|2003-03-27|2006-02-15|Andritz Ag Maschf|SORTER FOR CLEANING A FIBER SUSPENSION|
    AT413391B|2003-03-27|2006-02-15|Andritz Ag Maschf|SORTER FOR CLEANING A FIBER SUSPENSION|
    US7104480B2|2004-03-23|2006-09-12|J&L Fiber Services, Inc.|Refiner sensor and coupling arrangement|
    EP1943006A4|2005-10-28|2009-11-11|Prime Solution Inc|Rotary fan press|
    DE102013216433A1|2013-08-20|2015-03-12|Voith Patent Gmbh|pressure screens|
    CN111530738B|2020-06-17|2021-04-27|江苏新扬子造船有限公司|Deep sea tidal current energy type ore sorting device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/035,515|US4268381A|1979-05-03|1979-05-03|Rotary pulp screening device of the vertical pressure type|
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