METHOD OF AND APPARATUS FOR THE PRE-PROCESSING OF SINGLE STREAM RECYCLABLE MATERIAL FOR SORTING
First Claim
1. A system for sifting a stream of material comprising:
- a. a first level comprising one or more first screens having a plurality of first apertures, wherein the first screens transport the material along the first level in a first direction; and
b. a second level comprising one or more second screens having a plurality of second apertures, wherein the second screens receive the material from the first level and transport it along the second level in a second direction;
wherein the first level is positioned above the second level and the first direction is different than the second direction.
4 Assignments
0 Petitions
Accused Products
Abstract
A system for pre-processing material into groups of different sizes comprising three levels. The second level is positioned above the third level and below the first level. The first level comprising a feeding mechanism, one or more first screens coupled to ducts and having apertures, blowers and vacuum ducts, dust collectors and a diverter. The screens transport the material along the first level in a first direction while a portion is sifted away before being diverted to the second level. The second level comprising one or more second screens coupled to ducts and having apertures, blowers and vacuum ducts and a takeaway device. The screens transport the material along the second level in a second direction different than the first while a portion is sifted away before falling to the third level. The third level comprising blowers and vacuum ducts and takeaway devices for receiving a portion of the material.
102 Citations
42 Claims
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1. A system for sifting a stream of material comprising:
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a. a first level comprising one or more first screens having a plurality of first apertures, wherein the first screens transport the material along the first level in a first direction; and b. a second level comprising one or more second screens having a plurality of second apertures, wherein the second screens receive the material from the first level and transport it along the second level in a second direction; wherein the first level is positioned above the second level and the first direction is different than the second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for sifting a stream of material comprising:
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a. a first level comprising; i. a feeding mechanism configured to deliver the stream of material; ii. one or more first screens having a plurality of first apertures, wherein the first screens receive the material from the feeding mechanism and transport the material along the first level in a first direction; iii. one or more first ducts coupled to the one or more first screens for receiving a first portion of the material that falls through the plurality of first apertures; iv. one or more first dust collectors for suctioning away part of the material; v. any number of first blower and vacuum duct pairs for blowing and suctioning away a third portion of the material from the first level; and vi. at least one diverter coupled to at least one of the first screens for diverting the material; b. a second level comprising; i. one or more second screens having a plurality of second apertures, wherein the second screens receive the material from the at least one diverter and transport the material along the second level in a second direction; ii. one or more second ducts coupled to the one or more second screens for receiving a second portion of the material that falls through the plurality of second apertures; iii. any number of second blower and vacuum duct pairs for blowing and suctioning away the third portion of the material from the second level; and iv. at least one first takeaway device for receiving the first portion of the material from the one or more first ducts; and c. a third level comprising; i. at least one second takeaway device for receiving the second portion of the material from the one or more second ducts; and ii. any number of third blower and vacuum duct pairs for blowing and suctioning away the third portion of the material from the third level; wherein the first level is positioned above the second level, the third level is positioned below the second level and the first direction is different than the second direction.
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23. A screen for sifting a stream of material comprising:
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a. a surface; and b. a plurality of apertures along the surface wherein the plurality of apertures are oblong, wherein oblong is defined as deviating in shape from circular form by elongation in one dimension. - View Dependent Claims (24, 25, 26)
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27. A method of sifting a stream of material comprising:
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a. receiving the material on a first level wherein the first level comprises one or more first screens having a plurality of first apertures; b. transporting the material with the first screens along the first level in a first direction while a first portion of the material falls through the first apertures; c. receiving the material on a second level from the first level wherein the second level comprises one or more second screens having a plurality of second apertures; and d. transporting the material with the second screens along the second level in a second direction while a second portion of the material falls through the second apertures; wherein the first level is positioned above the second level and the first direction is different than the second direction. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification