Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
  • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
  • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
  • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
  • D21B1/00—Fibrous raw materials or their mechanical treatment
  • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
  • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
  • D21B1/30—Defibrating by other means
  • D21B1/32—Defibrating by other means of waste paper
  • D21B1/325—Defibrating by other means of waste paper de-inking devices
  • D21B1/327—Defibrating by other means of waste paper de-inking devices using flotation devices
• • 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
  • D21D1/34—Other mills or refiners
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
  • Y02W30/00—Technologies for solid waste management
  • Y02W30/50—Reuse, recycling or recovery technologies
  • Y02W30/64—Paper recycling

Definitions

• the invention relates to equipment for grinding and drying materials and can be used for the production of ecowool, 5 biofuels, etc.
• a known installation for grinding fibrous material comprising a housing with a processing chamber, in which are placed having a grinding headset, a rotor mounted on the drive shaft, and a stator, inlet and outlet pipes.
• a device for grinding materials comprising a housing, a rotor located therein, made in the form of a disk with accelerating blades on both sides, input and output channels located coaxially relative to the axis of rotation of the rotor,
• the output channel is made in the form of a ring spanning the input channel and is in communication with the suction cyclone.
• the accelerating blades of the rotor are mounted on its disk radially from the side of the output channel.
• the device contains a shell with tangential slots, which is located coaxially between the cylindrical wall of the casing and the end edges of the accelerating blades of the rotor and form with the body, an annular cavity communicating with a tangential channel for supplying air.
• the symmetry axis of the tangential slots are inclined at an angle of .7-10 degrees to the tangent drawn to the inner wall of the shell at a point located at the same
• stator elements are placed, made in the form of plate protrusions feeding material into the dispersion zone, and knives are located on the end edges of the radial blades, and
• the objective of the invention is to develop a dispersant design that is free from the disadvantages of the prototype, namely, the possibility of obtaining a stable (predetermined) particle size distribution the composition of the final product, due to the exclusion of non-separated particles of the processed material between the side wall of the housing and the disperser rotor.
• the above features can provide a high-quality and productive process of separation of fibrous material.
• FIG. 1 shows the design of the dispersant in the context
• figure 2 is a view of 5 a - a of fig.
• the dispersant (FIG. 1) contains a cylindrical housing 1, a rotor 2 with radial blades 3 located in it, which is rotatably mounted on the shaft 4 (the drive is not shown), an input channel 5 and an output channel 6 located coaxially with respect to the axis of rotation of the rotor 2.
• the output channel 6, is equipped with aerodynamic partitions 7, is connected to a fan (not shown in the drawing), and the housing 1 is equipped with channels 8 for air intake.
• On the shell of the housing 1 (figure 2) with
• stator elements 9 are placed, made in the form of plates feeding material into the dispersion zone.
• Each stator element 9 along the rotation of the rotor 2 on the shell channels 8 are made for air intake.
• holes 10 are made, for example, with a diameter of 12-1 7 mm in an amount of 10-20 pieces (Fig. 1) opposite the rotation of the radial blades 3.
• the device operates as follows.
• a dispersible material is supplied — commercial pulp or waste paper, which enters a rotating rotor 2 with radial blades 3. Under the action of centrifugal forces, the particles of material move to the periphery of the rotor 2 and fall into the annular dispersion zone. At the same time, air is supplied to this zone through channels 8. Bringing the material subjected to the impact of the rotor blades, is divided into individual fibers without mechanical damage.
• the material is more intensively fed into the dispersion zone, twisting in order to intensively mix the mass of the air suspension.
• the resulting air-fibrous air suspension is taken from the center of the dispersant under the influence of a vacuum created by a fan (not shown), connected to the output channel 6.
• Aerodynamic partitions 7 are installed in the channel 6 to remove a closed rotating air flow that prevents the finished product from leaving the dispersant.
• the vacuum By changing the vacuum, the granulometric composition of the product is regulated at the outlet of the dispersant, while airflows move through the openings 10, preventing undivided particles from entering the final product between the side wall of the housing and the rotating rotor of the dispersant.
• the present invention can be made of available materials and components on serial equipment in an industrial environment. It will be widely used in the pulp and paper, chemical, construction industries and other industries.

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• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Wood Science & Technology (AREA)
• Mechanical Engineering (AREA)
• Food Science & Technology (AREA)
• Paper (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=48698090

Family Applications (1)

Country Status (1)

Cited By (2)

Citations (4)

• 2012
  • 2012-03-28 WO PCT/RU2012/000227 patent/WO2013100799A1/fr not_active Ceased

Patent Citations (4)

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