• 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 method of making a filter body for a filter of the depth layer type comprises helically winding a braid (3) of cellulose-spinbonded nonwoven cloth around a bobbin having many pores and reciprocating in the axial direction while rotating. The braid is thus wound clockwise around the bobbin during the reciprocating movement in one direction and counter-clockwise during the reciprocating movement in the other direction so that intersections occur, and the clockwise wound braids (5-n, 5-n+1) and the counter-clockwise wound braids (6-n, 6-n+1) are successively stacked in aslant relation while partly overlapping each other to form roof-shaped structures. The height of the roof-shaped structures formed in subsequent cycles is progressively increased toward the outer periphery of the filter body so as to establish a distribution in which the space density increases progressively from the outer periphery toward the inner part of the filter body.
    公开号:SU1722208A3
    申请号:SU884356854
    申请日:1988-10-28
    公开日:1992-03-23
    发明作者:Вада Енедзи；Сузуки Тадаси
    申请人:Такано Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the purification of liquids, and more specifically to a method for producing labyrinth-type filters serving to purify liquid media.
    The purpose of the invention is to increase the strength of the filtering material, as well as to increase its quality.
    Figure 1 presents the scheme of the filtering material; Fig. 2 is a schematic of stacking a bundle formed from a cellulosic nonwoven fabric on a spool with thread fastening; on fig.Z - scheme of the spiral winding of a harness around the spool; figure 4 - scheme of the spool; Fig. 5 is a diagram of the formation of a strip of cellulose nonwoven fabric in the form of a rope; figure 6 is a section in figure 5.
    When a sheet of cellulosic nonwoven web with fastening is broken into the smallest possible smallest units during the spinning period, its individual units are individual fibers. Pulp non-woven fabric with strip-stretched yarns is obtained by applying non-woven fabric production technology when a fabric containing cellulose fibers / is converted into a material by self-gluing the fibers without atIN)
    eight
    | 00

    with
    change any binders during the formation process. Therefore, to impart cellulosic fibers self-adhesive properties, especially self-adhesive properties in the activated state during the forming process, a production process is used to regenerate the cellulosic fibers, resulting in a 100% non-woven fabric made up of cellulose. The method is characterized in that the activated fibers are obtained at the stage of formation from a polymer solution, and the resulting activity is used in the production of nonwoven material. In particular, the production process includes methods of wet formation, for example, viscose method, copper-ammonia method, wet forming method with sizing. However, in real conditions it is very difficult to deal with such individual fibers, therefore a sheet of cellulose nonwoven fabric is cut into continuous strips with a width of, for example, 30 mm. The width of the strip is preferably determined by taking into account the estimated change in pressure created by the fluid flowing through the filter material. Since this strip 1 has a non-uniform thickness, the continuous strip 1 is passed through the eye 2, which is already the width of strip 1, formed in the form of tow 3 (figure 5). This harness 3 has a relatively large thickness in addition to its relatively large width, as shown in FIG. Hot twist harness
    It gives certain advantages in terms of imparting sufficient mechanical strength, it is necessary to carefully select the amount of twist in terms of providing the required space. Thus, imparting excessive twist of the harness 3 leads to the formation of completely unnecessary large gaps when winding the harness 3 in the manner described below. Although twisting tow 3 is not necessary, it is preferable to twist the tow 3 approximately 10 turns per meter of length.
    This harness 3 is wrapped around the spool
    4 (figure 4) to obtain a filtering mass. The spool 4 is provided with a plurality of pores 5 allowing for unobstructed through-flow, and is made of metal, ceramics, polymer, etc. In the initial phase of winding the harness 3 around the bobbin 4, the harness 3 is wound with high tension so that the harness 3 comes into close contact with the spool 4. In the filtering mass the volume of spaces or cavities should gradually increase from the inner periphery to the outer
    the periphery of the filter mass. When harness 3 is wound with low tension, formation of apparent cavities is possible. However, these cavities are compressed by the action of pressure, which varies as the fluid flows through the filter mass. To avoid such a situation, a unique method of laying or applying a harness 3 is used. The spool 4 rotates and
    0, the position of the turns of the tow 3 around the bobbin 4 moves reciprocally in the longitudinal direction relative to the bobbin 4, i.e. by spiral winding of harness 3 around spool 4. Instead of reciprocating the position of turns of harness 3 around spool 4, reciprocating movement of spool 4 is possible during its rotation. In this case, harness 3 wrapped around spool 4
    0 when the position of the bundle 3 is shifted in one direction by the n-th time of the reciprocating movement, differs from the bundle 3 wrapped around the spool by the offset of the winding position of the bundle 3 in
    5 another direction for the n-th time of reciprocating motion, and the first one and the last one are called, respectively, a 5-n braid, wound clockwise, and a 6-n braid, wound counter-clockwise
    0 arrows. After forming on the spool 4 bundle 5-n, wound clockwise, on the spool 4 in the opposite direction, a bundle 6-n is formed that is wound counterclockwise. Therefore, bundles 5-p
    5 and 6-p intersect each other on the spool 4 in a variety of positions. On fig.Z marked the end position of the harness 6-p wound counterclockwise, i.e. the initial position of the harness 5-n + 1, wound on
    0 clockwise, as well as the original position B of the harness 5-n, wound clockwise. Position C is slightly offset from position B, so the next 5-n + 1 harness is wound clockwise
    5 arrow, in partially overlaps the harness 5-p, wound clockwise in the transverse direction. Similarly, the next bundle 6-n + 1, wound counterclockwise, partially overlaps
    0 harness 6-p, wound counterclockwise, in the transverse direction. A similar arrangement of clockwise and counterclockwise harnesses is repeated. Ultimately, a group of spiraling and partially
    5 overlapping harnesses 5-n, 5-n + 1,.,., Wound clockwise, and a similar group of wound counterclockwise wiring harnesses 6-n, bp + 1, ..., are combined, supporting each other, shown in figure 2 way, forming
    the most numerous are blood-like stacks 6. Each blood-like pile 7 limits the internal cavity and is characterized by mechanical strength sufficiently large to withstand the fluid pressure, which tends to deform its shape. Thus, the harnesses are sequentially wound with the formation of blood-like structures 6-1-6-4. FIG. 1 shows that the height of these blood-like structures 6-1-6-4 gradually increases from the inner periphery to the outer periphery of the filter mass. The greater the height of the blood-like structures, the greater their internal cavity. Thus, the volume of the cavities gradually increases from the inner periphery to the outer periphery of the filter mass. In other words, the filter mass formed as described below has a bulk density distribution in which the bulk density gradually increases from the outer periphery to the inner periphery of the filter mass.
    Therefore, when a liquid medium containing impurities flows from the outer peripheral side and the inner periphery of the filtering mass, the blood-like structures 6 are not deformed and retain their internal cavities irrespective of the pressure drops caused by the flow of the liquid medium through the filtering mass so that the impurities can effectively be retained. and be removed from the liquid medium.
    权利要求:
    Claims (1)
    [1]
    The invention of the method of manufacturing a filtering material of a labyrinth-type filter, including spiral winding of a filtering material onto a spool having a plurality of pores, characterized in that, in order to increase the strength of the filtering material, as well as to improve its quality, a cellulose strand with strip - figuratively drawn non-woven filaments are dense, and the bobbin is reciprocally moved in its axial direction with simultaneous rotation or a bundle along the spool and the bundle is wound around the spool clockwise during the reciprocating movement of the spool in one direction and counterclockwise during the reciprocating movement of the spool in the other direction so that they intersect each other, with the turns of the winding cable clockwise and counterclockwise sequentially placed in transverse direction with partial overlapping of each other with the formation of a glepy-like construction in one cycle, and the height of the gory-like structure formed in each of the subsequent qi klov gradually increases from the inner periphery to the outer. 6-4
    5-t1
    5-p
    5 C-Јv7
    FIG. g
    ° OO-O-OROOOOO
    OOOOOOOOOOOO
    o o o o o o o o o o o 0 ° 3 d o o o o o o o o
    Fig.Z
    L
    & /. four
    T
    LL
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    同族专利:
    公开号 | 公开日
    KR920003765B1|1992-05-14|
    KR890006282A|1989-06-12|
    CN1013025B|1991-07-03|
    EP0313920A2|1989-05-03|
    EP0313920A3|1991-04-10|
    CN1035058A|1989-08-30|
    JPH01115423A|1989-05-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1751000A|1928-06-09|1930-03-18|Tucapau Mills|Oil filter and filter element|
    USRE22651E|1938-08-23|1945-06-12|Filter |
    DE6601248U|1968-01-26|1969-02-27|Purolator Filter Gmbh|
    US3648846A|1969-05-19|1972-03-14|Amf Inc|Process for making fluid filters having improved properties|
    CH516701A|1971-03-05|1971-12-15|Norm Plastics|Wound strip filter tube - from resin-impregnated glass fibre for underground service|
    DE3135604A1|1980-09-11|1982-07-08|Kennecott Engineered Systems Co., 44122 Cleveland, Ohio|WRAPPED FILTER|JP3293645B2|1990-12-21|2002-06-17|イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー|Method and product for winding multiple yarns in a regulated manner|
    WO2000030730A1|1998-11-25|2000-06-02|Chisso Corporation|Filter cartridge|
    DE10084397T1|1999-03-30|2002-03-14|Chisso Corp|filter cartridge|
    DE10084425T1|1999-03-30|2002-06-20|Chisso Corp|filter cartridge|
    FR2913897B1|2007-03-20|2009-11-20|Inst Francais Du Petrole|FLUID STRUCTURE FOR FLUID CONTACT COLUMN AND METHOD OF MANUFACTURING THE SAME.|
    JP6653762B2|2016-08-26|2020-02-26|株式会社ロキテクノ|Cylindrical filter|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP62273532A|JPH01115423A|1987-10-30|1987-10-30|Production of filter body with cellulose spun bond nonwoven fabric as raw material|
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