JP2017170398A - Wind power selection device and wind power selecting method for crushed matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To separate and remove fibers, urethanes and dusts with a good efficiency by simple wind power selection.SOLUTION: A wind power selection device 1 for a crushed matter comprises: a vibration conveyor 11 which conveys a crushed matter a; an air current generator 20 which blows air to the crushed matter a conveyed by the vibration conveyor 11 in a direction opposite to a conveyance direction of the vibration conveyor 11; a recovery conveyor 22 which recovers urethanes and fibers c which are conveyed in the direction opposite to the conveyance direction of the vibration conveyor 11 by air blow of the air current generator 20 and are fallen from a rear end side in the conveyance direction of the vibration conveyor 11; and a dust collector 30 which sucks and exhausts powder dusts d which are generated above the vibration conveyor 11 and above the recovery conveyor 22. By blowing air to the crushed matter a conveyed by the vibration conveyor 11 in the direction opposite to the conveyance direction of the vibration conveyor 11, urethanes and fibers c in the crushed matter a are fallen from the rear end side in the conveyance direction of the vibration conveyor 11 and can be selected with a good efficiency.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an apparatus and a method for sorting urethane and fibers from crushed material by wind power.

  The crushed material obtained by crushing waste such as refrigerators and air conditioners that are used home appliances includes many plastics such as heat insulating materials. For example, urethane foam is used as a type of heat insulating material for refrigerators, but recently, vacuum heat insulating materials mainly made of glass fiber or PET resin are also used.

  For this reason, in refrigerator recycling and the like, a method for efficiently separating and removing urethane, fibers (heat insulating material) and others (resin, metal, etc.) generated after crushing treatment is desired. For example, a processing method using a plurality of types of crushing means and sorting means has been proposed, and wind sorting is used as the sorting means (Patent Documents 1 and 2). For example, as a method for removing a heat insulating material in a crushing process of a refrigerator, a method is employed in which a lightweight object is blown up with air from below the punching plate, sucked from above, and collected with a cyclone.

JP 2003-001632 A JP 2012-228818 A

  However, in the conventional wind sorter for the purpose of plastic recovery, the sorting accuracy varies due to fluctuations in the amount of urethane introduced, and a recovery omission of about 10 to 15% was confirmed. In addition, “vacuum insulation” is adopted as the casing insulation of the refrigerator, and glass fiber or PET resin fiber is used as the material. However, wind sorting is performed by a general combination of air blowing and suction. In this case, there is a problem that the aggregated fibers cause the rotary valve to close the discharge part of the cyclone. In the processing of vacuum heat insulating materials, which will increase rapidly in the future, the risk of blockage of the rotary valve is high, and it is not suitable for continuous processing.

  The present invention has been made in view of the above circumstances, and an object thereof is to efficiently separate and remove fibers, urethane, and dust by simple wind sorting.

  In order to solve the above problems, according to the present invention, an oscillating conveyor that conveys crushed material, an airflow generator that blows air to the crushed material conveyed by the oscillating conveyor in a direction opposite to the conveying direction of the oscillating conveyor, Recovery means for recovering urethane and fibers that have been transported in the direction opposite to the transport direction of the vibrating conveyor by the air flow of the airflow generator and dropped from the rear end side in the transporting direction of the vibrating conveyor, and above the vibrating conveyor There is also provided a crushed material wind power sorter comprising a dust collector for sucking and exhausting dust generated above the recovery means.

  In this wind power sorter, a crusher for crushing waste may be provided, and the crushed material crushed by the crusher may be input to the vibrating conveyor.

  Further, according to the present invention, the crushed material is conveyed by the vibration conveyor, and the urethane and fibers in the crushed material are blown to the crushed material conveyed by the vibration conveyor in a direction opposite to the conveying direction of the vibration conveyor. Is transported in the direction opposite to the conveying direction of the vibrating conveyor, dropped from the rear end side of the conveying direction of the vibrating conveyor, and the metal and resin in the crushed material are transferred in the conveying direction of the vibrating conveyor and sorted by wind. There is provided a method for sorting wind power of crushed material by sucking and exhausting dust.

  According to the present invention, urethane and fibers in the crushed material are dropped from the rear end side in the conveying direction of the vibrating conveyor by blowing air to the crushed material conveyed by the vibrating conveyor in the direction opposite to the conveying direction of the vibrating conveyor. Can be sorted efficiently.

It is a top view showing typically composition of a wind power sorter concerning an embodiment of the invention. It is a front view showing typically composition of a wind power sorter concerning an embodiment of the invention. It is a flowchart which shows the procedure of the wind sorting method which concerns on embodiment of this invention.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. In the present specification and drawings, elements having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIGS. 1 and 2, the wind power sorting device 1 according to the embodiment of the present invention includes a vibration conveyor 11 to which vibration is applied by a vibration device 10. A throwing chute 12 for the crushed material a is arranged on the top of the vibration conveyor 11, and the crushed material a generated by crushing the waste with the crusher 15 is thrown into the feeding chute 12 through the extraction conveyor 16. Then, the crushed material a is supplied from the charging chute 12 onto the vibration conveyor 11. The vibration conveyor 11 conveys the crushed material a supplied in this way to the right in the drawing by the vibration applied by the vibration device 10.

  The waste that is crushed by the crusher 15 is, for example, waste such as refrigerators and air conditioners that are used home appliances. The crushed material a generated by the crushing process by the crusher 15 includes resin, metal b, urethane, fibers c, and other dust (dust) d. The vibration conveyor 11 is supplied with a crushed material a in a state in which these resin, metal b, urethane, fibers c, and dust (d) d are mixed from an input chute 12.

In the upper part of the front side of the vibration conveyor 11 in the conveyance direction (that is, the right side of the vibration conveyor 11), the crushed material a placed on the vibration conveyor 11 and conveyed is opposite to the conveyance direction of the vibration conveyor 11 (that is, in the drawing). The airflow generator 20 that blows air leftward) is provided. By blowing air from the airflow generator 20 to the crushed material a conveyed on the vibration conveyor 11 with an air volume of, for example, 80 to 100 m ³ / m, urethane and fibers c contained in the crushed material a Is blown away in the direction opposite to the conveyance direction of the vibration conveyor 11 and is conveyed, and is dropped from the rear end side in the conveyance direction of the vibration conveyor 11 (that is, the left end side of the vibration conveyor 11).

  A dropping chute 21 for passing the urethane and fibers c thus dropped is provided at the lower part of the rear end side of the vibrating conveyor 11 in the conveying direction (that is, the left end side of the vibrating conveyor 11). A recovery conveyor 22 is installed at the lower end outlet of the drop chute 21 as recovery means for recovering urethane and fibers c. The urethane and fibers c collected on the collection conveyor 22 are conveyed rightward in the drawing by the operation of the collection conveyor 22 and discharged.

  In addition, when air is blown from the airflow generator 20 to the crushed material a on the vibration conveyor 11, the dust d contained in the crushed material a is in a state of rising above the vibration conveyor 11. For this reason, an exhaust duct 25 for sucking the dust d generated above the vibration conveyor 11 is connected.

  Similarly, when the urethane and the fibers c are dropped onto the collection conveyor 22 through the drop chute 21, the dust d that has fallen together with the urethane and fibers c soars above the collection conveyor 22. Become. For this reason, an exhaust duct 26 for sucking dust d generated above the recovery conveyor 22 is connected.

These exhaust ducts 25 and 26 are connected to a dust collector (cyclone) 30. When the dust collector 30 is operated with a suction air amount of, for example, 10 to 20 m ³ / m, dust d generated above the vibration conveyor 11 and above the recovery conveyor 22 is sucked and exhausted through the exhaust ducts 25 and 26. Below the dust collector 30, a dust conveyor 31 that collects and discharges the dust d thus sucked and exhausted by the dust collector 30 is installed.

  Therefore, in the wind power sorting apparatus 1 configured as described above, as shown in FIG. 3, first, waste such as refrigerators and air conditioners that are used home appliances is first crushed by the crusher 15 ( S <b> 1), the crushed material a generated in the crushing process is supplied to the vibrating conveyor 11 from the extraction conveyor 16 (S <b> 2) via the input chute 12. And the vibration conveyor 11 conveys the crushing material a rightward in a figure with the vibration of the vibration apparatus 10 (S3).

  Then, air is blown from the airflow generator 20 to the crushed object a conveyed by the vibration conveyor 11 in the direction opposite to the conveyance direction of the vibration conveyor 11 (that is, leftward in the drawing) (S4). Then, wind sorting of the resin, metal b, urethane, and fibers c contained in the crushed material a is performed (S4).

  Then, the resin and the metal b are directly conveyed leftward in the drawing by the vibration conveyor 11 and are appropriately collected (S5). The resin and metal b recovered in this way are further subjected to a magnetic separation step (S6) by a magnetic separator, and the metal is recovered (S7).

  On the other hand, the urethane and fibers c contained in the crushed material a are blown away in the direction opposite to the conveyance direction of the vibration conveyor 11, and the rear end side in the conveyance direction of the vibration conveyor 11 (that is, the left end side of the vibration conveyor 11). ). The urethane and fibers c dropped in this way are collected by the collection conveyor 22 through the drop chute 21 and conveyed to the right in the drawing by the operation of the collection conveyor 22, and the urethane and fibers c are discharged ( S10). Note that urethane and fibers are further sorted, for example, manually.

  The dust d generated above the vibration conveyor 11 and the collection conveyor 22 is sucked and exhausted through the exhaust ducts 25 and 26 by the operation of the dust collector 30 (S11). The dust d collected in the dust collector 30 is collected by the dust conveyor 31 and discharged (S12).

  According to the wind power sorting apparatus 1 according to this embodiment, the crushed material a conveyed by the vibration conveyor 11 is blown in the direction opposite to the conveying direction of the vibration conveyor 11 from the airflow generator 20, thereby crushed material. The urethane and fibers c contained in a can be dropped from the rear end side in the conveying direction of the vibration conveyor 11 to efficiently sort the wind force. Also, the dust d generated above the vibration conveyor 11 and above the recovery conveyor 22 is quickly sucked and exhausted by the operation of the dust collector 30, and the airflow above the vibration conveyor 11 and above the recovery conveyor 22 is stabilized. Dust generation is also prevented, so the work environment is improved. Further, since urethane and fibers c are not brought into the dust collector 30, continuous work is possible without worrying about blockage.

  As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to this example. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea described in the claims. It is understood that it belongs to.

  For example, the crushed material is not limited to those obtained by crushing wastes such as refrigerators and air conditioners, and the present invention can also be applied to processing other types of crushed materials.

DESCRIPTION OF SYMBOLS 1 Wind power sorter 10 Vibrating device 11 Vibrating conveyor 12 Input chute 15 Crusher 16 Extraction conveyor 20 Airflow generator 21 Falling chute 22 Collection conveyor 25, 26 Exhaust duct 30 Dust collector 31 Dust conveyor a Crushed material b Resin, metal c Urethane, Fibers d Dust

Claims (3)

An oscillating conveyor for conveying crushed materials;
An airflow generator that blows air to the crushed material conveyed by the vibrating conveyor in a direction opposite to the conveying direction of the vibrating conveyor;
Recovery means for recovering urethane and fibers that have been transported in the direction opposite to the transport direction of the vibrating conveyor by the air flow of the airflow generator and dropped from the rear end side in the transporting direction of the vibrating conveyor, and above the vibrating conveyor And a wind power sorting apparatus for crushed material, comprising a dust collector for sucking and exhausting dust generated above the collecting means. Equipped with a crusher for crushing waste,
The crushed material wind power sorter according to claim 1, wherein the pulverized material crushed by the crusher is fed into the vibration conveyor. The crushed material is conveyed by a vibrating conveyor,
By blowing air in the direction opposite to the conveying direction of the vibrating conveyor to the crushed material conveyed by the vibrating conveyor, the urethane and fibers in the crushed material are conveyed in the direction opposite to the conveying direction of the vibrating conveyor, Drop from the rear end side of the conveyor direction of the vibration conveyor,
The metal and resin in the crushed material are transported in the transport direction of the vibrating conveyor and sorted by wind power.
A wind power sorting method for crushed material by sucking and exhausting dust.

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