Classifications

• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
  • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
  • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
  • B02C7/00—Crushing or disintegrating by disc mills
  • B02C7/11—Details
  • B02C7/12—Shape or construction of discs
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
  • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
  • D21D1/004—Methods of beating or refining including disperging or deflaking
  • D21D1/006—Disc mills
  • D21D1/008—Discs
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
  • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
  • D21D1/20—Methods of refining
  • D21D1/22—Jordans
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
  • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
  • D21D1/20—Methods of refining
  • D21D1/30—Disc mills
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
  • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
  • D21D1/20—Methods of refining
  • D21D1/30—Disc mills
  • D21D1/306—Discs

Definitions

• the invention relates to sets for mechanical processing, in particular grinding, of suspended pulp material, which serves as a material to be treated.
• Such sets are used in grinding machines, so-called refiners, but also in so-called de-blockers and similar equipment for the mechanical processing of suspended pulp material.
• a clothing comprises a die plate, which is in the form of a perforated plate or mask and has openings in a predetermined arrangement. In these openings, the process side projecting, flowed by the fibrous material, knife-shaped processing elements are used. Optionally, these knife-shaped processing elements may have process-remote foot areas which may protrude beyond the die plate.
• a set which comprises a die plate or perforated plate having openings in a predetermined arrangement.
• rod-shaped or knife-shaped processing elements are used, which have tongues which protrude on the process side facing away from the die plate.
• the base-side projecting feet are over-molded with polymer and partially also welded together. The slimmer the blade-shaped machining elements are made, the more difficult it becomes to keep them stable on the process side in a predetermined orientation and at a predetermined constant distance from one another.
• a die plate with slots is shown, wherein per slot a knife-shaped processing element (refiner) is positioned.
• the refining plate has a multi-layered sheet metal structure, and the fixing of the elements to be joined is carried out by welding, preferably laser welding and electron beam welding, gluing and soldering.
• US Pat. No. 5,921,486 shows interchangeable refiner plates which comprise mutually arranged knife-shaped processing elements (refining rods) and spacer elements (distance rods). Together with a carrier plate, the processing elements and the spacer elements are connected by means of high-temperature soldering cohesively.
• the invention aims to provide sets for mechanical processing, in particular grinding, of suspended pulp material of the initially mentioned, which are inexpensive to represent, have a low-part structure as possible, the knife-shaped processing elements are kept stable in operation, and the composite of the knife-shaped processing elements has sufficient self-bending stiffness.
• a set for the mechanical processing, in particular grinding, of suspended pulp material is provided in a refiner, with a die plate (perforated plate) with openings in a predetermined arrangement, in which process side protruding, from the pulp material (treated) streamlined, knife-shaped processing elements are used, the process-facing portions protrude beyond the die plate, each knife-shaped processing element has a plurality of longitudinally spaced foot areas that go through the die plate and projecting on the process side facing away from the die plate, which is characterized in that transverse stiffening elements substantially orthogonal in the longitudinal direction of the processing elements are arranged such that the transverse stiffening stabilize the process-remote foot portions of the processing elements.
• the solution is that to improve the flexural strength and the operational stability of the knife-shaped processing elements, which are now designed slimmer, the knife-shaped processing elements have a plurality of longitudinally spaced foot areas, of which at least some the process - remote side are stabilized by receiving grooves of a base plate so that the Overall arrangement of the knife-shaped processing elements reliably spaced from each other and stiffened in itself.
• the garnish according to the invention has a low-part construction and is therefore inexpensive to represent with a simplified structure.
• the transverse stiffening elements are formed like a dam, are on the process side over the die plate and keep the processing elements supported process side.
• the transverse stiffening elements fulfill a double function, namely on the one hand a transverse reinforcement on the side facing away from the process by the transverse stiffening elements and on the other hand a transverse stiffening of the processing elements on the process side.
• the machining elements are made extremely slender, i. have a low material thickness and a high height.
• the arrangement of processing elements, die plate and transverse stiffening elements process-facing is encapsulated with a polymer composition.
• the grid-like composite arrangement of processing elements, die plate and transverse stiffening allow, without excessive shrinkage phenomena and distortion, a better adhesive connection by means of potted polymer. Adhesive fractures between metal and adhesive or resin can be reliably reduced.
• the residence time of the pulp material can be influenced, wherein with a larger number of dam-like transverse stiffening elements, the suspension speed between adjacent blade-shaped processing elements is reduced by deflection and congestion. If the distance between the dam-like transverse stiffening elements is chosen to be smaller, the effectiveness and the capacity of the refiner are correspondingly influenced.
• the dam-like transverse reinforcement element acts as a flow barrier, while in other cases the surface of the dam-like transverse reinforcement elements can also act as an additional machining surface or grinding surface.
• the dam-like transverse stiffening support the knife-shaped processing elements against bending, so as to obtain an improvement in stability, which is particularly advantageous for narrow, knife-shaped processing elements.
• the fact that the knife-shaped processing elements and the dam-like transverse stiffening elements form a composite arrangement one obtains a mutual stabilization and an increase of the resistance torque against bending stresses.
• the process-side supernatant height of the processing elements is 6 to 12 mm, preferably 8 to 10 mm.
• the width of the processing elements may be 1 to 6 mm, preferably 1, 5 to 2.5 mm.
• the channel width between the processing elements is 1, 5 to 6 mm, preferably 1, 8 to 2.5 mm.
• the dam-like transverse reinforcement elements physically a coherent structure, which simplify the assembly and handling.
• sockets for introducing force of fastening screws for attaching the trimmings are attached to the corresponding component of the refiner in openings of the die plate.
• sockets can preferably be connected to the die plate by means of a material connection or a combination of material connection and positive connection.
• a fabric connection is a welding, soldering and / or adhesive connection into consideration.
• the bushings each have an anti-rotation, and this rotation can be formed by a polygonal or polygonal shape, whereby the jacks are set after installation in the openings of the die plate in the direction of rotation.
• the individual knife-shaped processing elements are used with the aid of several longitudinally spaced foot portions in the base plate combined therewith, these processing elements are set on the process side facing away stabilizing the perforated plate or possibly.
• Process-oriented by means of transverse stiffening elements are designed so that they have a sufficient bending stiffness and operational stability.
• the dam-like transverse reinforcing elements are structurally coherent designed as a chain or bar, also simplifies the assembly and handling.
• FIG. 2 shows a perspective view of the design form of a clothing in which the dam-like transverse reinforcement elements protrude on the process side and support the knife-shaped processing elements at a distance
• FIG. 3 is a perspective view of the arrangement of FIG. 2 with a
• Embodiment variant which has an additional base plate connected to the perforated plate
• FIG. 4 shows a schematic arrangement of a design form of a clothing according to the invention, in which both the knife-shaped processing elements and the dam-like transverse reinforcement elements protrude over the die plate on the process side and away from the process,
• Fig. 5 is a perspective view of the arrangement of Fig. 4 in
• FIG. 6 is a perspective view of a knife-shaped processing element as an itemized view
• FIG. 7 shows a perspective view of a dam-like transverse reinforcing element as an individual part illustration
• FIG. 8 shows a perspective view of a composite arrangement of knife-shaped machining elements and dam-like transverse reinforcing elements
• FIG. 9 is a schematic perspective view, in which only partially the knife-shaped processing elements are inserted into the die plate for clarity, while the dam-like transverse reinforcing elements are completely visible in their inserted state, 10 shows an embodiment of a bushing for force introduction of fastening screws,
• FIG. 11 is a perspective view of an embodiment of a bushing for force introduction of mounting screws
• Fig. 12 is a schematic perspective view of an alternative
• Fig. 13 is a schematic perspective sectional view of a
• Fig. 14 is a perspective view of a knife-shaped
• Processing element as a single representation of the embodiment of a garnish according to Figures 12 to 14.
• FIG. 1 shows in an overall view an exemplary embodiment of a set, denoted overall by 1, which is installed on a grinding machine, not shown, a so-called refiner and for grinding suspended pulp material and for dispersing impurities and fibers and for stripping, ie Dissolving fiber conglomerates, serves.
• the set 1 shown as a plan view in Figure 1 comprises a die plate or perforated plate 2, knife-shaped processing elements 3 and dam-like transverse stiffening elements 4. Furthermore, in Figure 1 openings 5 are shown in the die plate 2, in which bushes 6 are used to force introduction of mounting screws.
• a cured Gußmassentik 7 is shown, which preferably of a polymer as integral adhesive bond of die plate 2, knife-shaped processing elements 3 and dam-like transverse stiffening elements 4 is formed.
• FIGS. 2 and 3 An embodiment is shown with reference to FIGS. 2 and 3, in which the dam-like transverse stiffening elements 4 protrude only on the process side like the knife-shaped processing elements 3.
• a reinforcing plate or base plate 8 is arranged, in which at least some of the foot portions of the processing elements 3 in associated grooves of the base plate 8 rich.
• FIGS. 4 to 9 A variant of a clothing 1 'is shown with reference to FIGS. 4 to 9, which comprises a die plate 2, knife-shaped processing elements 3 and dam-like transverse reinforcement elements 4.
• the dam-like transverse reinforcement elements 4 and also the knife-shaped processing elements 3 project over the die plate 2 on the side facing away from the process.
• foot regions 10 of the knife-shaped processing elements and foot regions 11 of the dam-like transverse reinforcement elements 4 protrude on the side facing away from the process.
• FIG. 4 A variant of a clothing 1 'is shown with reference to FIGS. 4 to 9, which comprises a die plate 2, knife-shaped processing elements 3 and dam-like transverse reinforcement elements 4.
• the knife-shaped processing element 3 and a dam-like transverse reinforcement element 4 will be made clear for the purpose of illustration as a single part illustration.
• the one inside the other cross-sectional arrangement of a knife-shaped processing element 3 and a plurality of strip-shaped design, dam-like transverse reinforcement elements 4 illustrates, from which in particular the interlocking connector can be seen.
• the process side of the trimmings 1, 1 ' is denoted by 13 and the process side facing away from the same by 14.
• Figure 9 shows in a perspective view a partially assembled set V for clarification of the assembly process, for example.
• FIGS. 10 and 11 show preferred embodiments of bushes 6 for the force introduction of fastening screws in openings 5 of the die plate 2, as can be seen from FIG.
• the bushing 6 according to FIG. 10 is designed so that it can be connected to the die plate 2 by means of a material-connection connection or by a combination of fabric-bonded and form-fitting connection. These may be, for example, welded, soldered and / or glued joints.
• an anti-rotation device 15 is additionally shown, which is designed in the form of a polygonal connection 16, for example.
• FIG. 14 shows a detail of a knife-shaped processing element 3 ', which according to FIG. 12 is inserted into the predetermined receiving openings 12' of the perforated plate 2 or die
• knife-shaped processing elements 3 and dam-like transverse stiffening elements 4 can be combined with each other, which partially protrude at the foot region 10 for the die plate 2 on the process-remote side 14, and those shown in Figures 2 and 3.
• the knife-shaped processing elements 3, 3 ' may be provided in different arrangements and orientations to each other. The same applies, of course, for the dam-like transverse stiffening elements. 4
• Dam-like transverse reinforcement elements 4 an effective mutual Stiffening ensure what is due to the grid-like structure of the arrangement according to the invention or the anchoring of at least some of the longitudinally spaced foot portions 10 of the knife-shaped processing elements 3, 3 'in an additional base plate. Further, if the dam-like transverse stiffening elements 4 are physically combined to form a coherent structure, the assembly of such a set 1, V is facilitated. In addition, the transverse stiffening elements 4 also have sufficient inherent rigidity.

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• Engineering & Computer Science (AREA)
• Food Science & Technology (AREA)
• Paper (AREA)

Priority Applications (10)

Applications Claiming Priority (2)

Related Child Applications (2)

Publications (1)

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Family Applications (1)

Country Status (11)

Cited By (1)

Families Citing this family (4)

Citations (7)

Family Cites Families (15)

• 2014
  • 2014-06-27 DE DE102014009588.6A patent/DE102014009588A1/de not_active Withdrawn
• 2015
  • 2015-06-24 EP EP15733624.9A patent/EP3161206B1/de not_active Not-in-force
  • 2015-06-24 ES ES15733624T patent/ES2699844T3/es active Active
  • 2015-06-24 CN CN201580034975.9A patent/CN106536821B/zh active Active
  • 2015-06-24 RU RU2016150925A patent/RU2667834C2/ru active
  • 2015-06-24 JP JP2017517183A patent/JP6448777B2/ja not_active Expired - Fee Related
  • 2015-06-24 AU AU2015281359A patent/AU2015281359B2/en not_active Ceased
  • 2015-06-24 BR BR112016030421-7A patent/BR112016030421B1/pt not_active IP Right Cessation
  • 2015-06-24 WO PCT/EP2015/001276 patent/WO2015197192A1/de not_active Ceased
  • 2015-06-24 US US15/315,212 patent/US9976253B2/en active Active
  • 2015-06-24 CA CA2949396A patent/CA2949396C/en not_active Expired - Fee Related
• 2018
  • 2018-03-30 US US15/941,977 patent/US11453977B2/en active Active

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