Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
  • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
  • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
  • B07B1/18—Drum screens
  • B07B1/22—Revolving drums
  • B07B1/24—Revolving drums with fixed or moving interior agitators
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
  • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
  • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
  • B02C17/007—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls specially adapted for disintegrating refuse

Definitions

• the present invention relates to a device and a system for pretreatment of household waste and the like. It relates in particular to the recovery of organic matter from household waste and the like by a rotary device.
• the primary objective of the invention is to propose a solution for facilitating the operations of opening the bags, preparing the mass of the waste at the separation and then the separation itself of the two organic and non-organic fractions.
• the second objective of the invention is furthermore to propose a simple and efficient system for improving, as soon as possible, the separation of household waste and the like.
• a confined enclosure adapted to receive the waste comprising at least one inlet and at least one outlet, said enclosure comprises a rotary drum;
• said drum comprises a plurality of blades regularly distributed on the inside face of its cylindrical wall
• a toothing extends over a major part of the length of the drum adapted to tear the bags of waste
• the toothing has a transverse inclination to the drum, in a direction corresponding to the mixing direction.
• the present invention differs from the two previous ones, even though it incorporates certain features of the aforementioned patents, since it is a pre-treatment system by separation of household and similar waste, and not of a treatment system. in that the device set up is different as much on its final design as on the desired functions of the tools put in place, as will be understood from the following description:
• Fiq No. 1 a mixer / screener device comprising the following features:
• FIG. 1 a movable drum assembly in two fractions (FIG. 1) coupled in rotation about an axis X1 so as to simultaneously mix and screen the waste:
• a "mixer" fraction M whose length is preferably twice that of the "screen” fraction equipped with tilting blades 1, in the form of teeth, the inclination and orientation of which may vary according to the direction of rotation chosen, and
• the mixer outlet which serves as weir in the screen, is made by an outlet tympanum 11 (fig 2)
• the device is also provided with an input tympanum 13 (FIG. 3);
• the device comprises a fixed circular hood covering the screen (FIG. 4).
• the "blender" fraction will in length at least double the "screen” fraction.
• the discharge tympanum 11 is attached to the opposite end of the input tympanum 13 inside the mixing tube and rotates therewith. It is composed of a solid metal wall provided with a circular hole 15 centered on the axis X1 of the mixing tube as well as lifting blades 17.
• the input eardrum 13 is fixed and equipped with a feed chute 19 located on the upper quarter of the eardrum opposite the direction of rotation of the mixing tube. It can also be rotatable and identical to the output eardrum with a feed hole centered on the axis of rotation of the mixing tube.
• the circular cover 7 is fixed and smooth in its inner part, its diameter is about 400 mm larger than the diameter of the screen 4 so as to allow it to cap the screen and abut with a suitable seal on the mixing drum. It is equipped with fixed feet 21 (FIG. 1), an evacuation chute 23, a "refusal” receiving conveyor 25, a “passing” receiving conveyor 27 as well as a ramp provided with of compressed air nozzles 29 and a ventilation stitch 31 for aspiration of vapors or odors. Operation of the invention
• the mixing / screening tube M, 4 being rotated in the intended direction, the household waste and the like are transported to the input tympanum 13 where they are introduced into the mixer by the feed chute 19.
• This chute of Feed can also receive other liquid or solid fluids for the purpose of mixing.
• the measurement of the weight of the waste in treatment is done in a specific way on the "mixer" part M.
• the weight rate of the screen / mixer will be given by the speed of filling of the mixer .
• the flow can also be done more naturally by giving a more or less accentuated slope to the sieve / mixer assembly.

Landscapes

• Engineering & Computer Science (AREA)
• Food Science & Technology (AREA)
• Combined Means For Separation Of Solids (AREA)
• Processing Of Solid Wastes (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=40174767

Family Applications (1)

Country Status (3)

Families Citing this family (3)

Family Cites Families (2)

• 2008
  • 2008-05-23 FR FR0802794A patent/FR2931373A1/fr not_active Withdrawn
• 2009
  • 2009-04-01 WO PCT/FR2009/000387 patent/WO2009141514A1/fr not_active Ceased
  • 2009-04-01 EP EP09749995A patent/EP2276584A1/de not_active Withdrawn

Non-Patent Citations (1)

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