摘要:
Apparatus and methods are provided for sensing the presence of bright white paper on a conveyor of a paper sorting system. The conveyor is constantly illuminated with ultraviolet light. When bright white paper is present in the inspection zone of the conveyor, it will re-radiate fluorescent light energy as a result of the ultraviolet light. Periodically, the inspection zone of the conveyor is illuminated with a second light source in the visible light spectrum. Light is collected from the inspection zone of the conveyor, including reflected light from the secondary source and including emitted fluorescent light energy as a result of the ultraviolet light falling on bright white paper. Periodically a microprocessor associated with the sensor senses reflected light from the second source to determine whether any object if present on the conveyor. The microprocessor then senses the level of fluorescent light energy being emitted from any object on the conveyor. The system determines first whether any object is present on the conveyor, as a result of the reflected secondary light, and then determines whether that object is bright white paper depending upon the measured level of emitted fluorescent light energy. Based upon these determinations, the stream of waste paper on the conveyor can be sorted into two fractions, one of which is the bright white paper. A method of sorting waste paper includes spreading waste paper out into a layer that is substantially one unit thick; detecting the presence or absence of a predetermined optical characteristic as the layer of paper is passed by a sensor; and controlling one or more actuators that direct a sheet of paper based on the presence or absence of the predetermined optical characteristic.
摘要:
A paper handling system includes an acceleration conveyor having an acceleration belt operating at an acceleration speed. The system includes a pinning structure operably positioned to pin paper to the acceleration belt. The pinning structure is a rotary feeder which includes a plurality of flexible bristles extending radially from a roller into engagement with the acceleration belt. The speed of the acceleration belt is sufficiently high to create a suction phenomena such that when paper is pinned to the acceleration belt with the rotary feeder, the paper will be accelerated to a paper speed substantially equal to the acceleration speed. The system also includes a blower system operative to facilitate carrying the paper off of the acceleration belt across a transition gap between the acceleration belt and a product belt.
摘要:
The present invention discloses a singulation system for recyclable materials which has a vacuum chamber having a slot down the middle. The vacuum chamber is substantially hollow such that air being pulled through one side of the vacuum chamber is pulled through the slot. Air is pulled through the vacuum chamber using a vacuum. A belt is rolled around the vacuum chamber, and the belt has hole arrays. The vacuum pulling air through the slot pulls air through the hole arrays, thereby allowing the belt to grab hold of and pull containers up the belt. Various outlet hoses can be provided from the vacuum to blow containers off the belt which are not firmly attached at the hole arrays, or to blow air against the diverter which then blows air across the belt, or to blow air through the hole arrays on the underside of the vacuum chamber to clear out holes which may be clogged from time to time.
摘要:
A feed system is disclosed herein for use with an electromagnetic eddy current materials separator for supplying material to be acted upon by the eddy current magnet directly into the regions strongest influence of the magnetic field of said magnet. Automatic blockage release means are provided to terminate jam-ups in the event that a blockage should occur in the delivery of feedstock to the region of influence of the magnetic field of the magnet.
摘要:
Methods and systems are provided for controlling an automatic separator apparatus of a Materials Recovery Facility. An input waste material stream includes a mixture of first and second materials. The method includes a step of passing the input waste material stream through an adjustable separator having at least one adjustable parameter, and separating the input waste material stream into a first output stream containing the majority of the first material and some contaminant second material, and a second output stream containing the majority of the second material and some contaminant first material. The adjustable parameter is adjusted. The method includes monitoring the amount of contaminant second material in the first output stream, and the amount of contaminant first material in the second output stream, both before and after the adjustment of the adjustable parameter, and generating a signal indicative of whether the combined amount of contaminant material has decreased. The adjustable parameter is further adjusted responsive to the signal, in a direction indicated by the signal as being favorable to decreasing the combined amount of contaminant material in the first and second output streams.
摘要:
A paper sorting system allows the high speed determination of color, glossiness and the presence of printed matter for individual sheets of paper in a stream of waste paper. Sorting criteria may be selected from a plurality of predefined options to sort the paper stream.
摘要:
A method is provided for sorting white paper from a stream of paper wherein the concentration of white paper is less than the concentration of non-white paper. The method includes identifying the white paper by detecting the presence of an optical characteristic of the white paper as the stream of paper is passed by a sensor. Then the white paper is ejected from the stream of paper by controlling one or more actuators directed against the white paper, and thereby separating the white paper from the non-white paper. The method is particularly applicable to the sorting of white paper during curbside recycling.
摘要:
Apparatus and methods are provided for sensing the presence of bright white paper on a conveyor of a paper sorting system. The conveyor is constantly illuminated with ultraviolet light. When bright white paper is present in the inspection zone of the conveyor, it will re-radiate fluorescent light energy as a result of the ultraviolet light. Periodically, the inspection zone of the conveyor is illuminated with a second light source in the visible light spectrum. Light is collected from the inspection zone of the conveyor, including reflected light from the secondary source and including emitted fluorescent light energy as a result of the ultraviolet light falling on bright white paper. Periodically a microprocessor associated with the sensor senses reflected light from the second source to determine whether any object if present on the conveyor. The microprocessor then senses the level of fluorescent light energy being emitted from any object on the conveyor. The system determines first whether any object is present on the conveyor, as a result of the reflected secondary light, and then determines whether that object is bright white paper depending upon the measured level of emitted fluorescent light energy. Based upon these determinations, the stream of waste paper on the conveyor can be sorted into two fractions, one of which is the bright white paper.
摘要:
Apparatus and methods are provided for sensing the presence of bright white paper on a conveyor of a paper sorting system. The conveyor is constantly illuminated with ultraviolet light. When bright white paper is present in the inspection zone of the conveyor, it will re-radiate fluorescent light energy as a result of the ultraviolet light. Periodically, the inspection zone of the conveyor is illuminated with a second light source in the visible light spectrum. Light is collected from the inspection zone of the conveyor, including reflected light from the secondary source and including emitted fluorescent light energy as a result of the ultraviolet light falling on bright white paper. Periodically a microprocessor associated with the sensor senses reflected light from the second source to determine whether any object if present on the conveyor. The microprocessor then senses the level of fluorescent light energy being emitted from any object on the conveyor. The system determines first whether any object is present on the conveyor, as a result of the reflected secondary light, and then determines whether that object is bright white paper depending upon the measured level of emitted fluorescent light energy. Based upon these determinations, the stream of waste paper on the conveyor can be sorted into two fractions, one of which is the bright white paper.
摘要:
Solid waste incinerator fuel is preclassified by passing it through a hollow rotating cylindrical drum which has two sets of extensions from the wall going lengthwise along the length of the drum, the first set toward one end and the second toward the other, the second set being shorter or smaller-sized than the first and the first preferably having rodlike projections which may have at least partly knifelike or bladelike ends or edges at the axial or inner ends thereof. The first set of extensions homogenizes the incoming waste by lifting, dropping, churning, and ripping it as well as fluffing it. The second set of extensions, preferably angled, lifts smaller sized heavier, non-combustible particles to the upper part of the drum from which they are removed at the exit end. The lighter material, mostly combustibles such as paper, textiles and wood, for example, is discharged toward the bottom of the exit end of the drum. When in operation the drum is preferably angled or tilted somewhat downward from entrance to exit end to facilitate movement of the material undergoing rotational treatment through the drum.