EXPANDED POLYSTYRENE RECYCLING AND HEAT EXTRUDING SYSTEM
First Claim
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1. A device for recycling extruded polystyrene comprising:
- a. a conveyer comprising a conveyor belt, motor, and tensioning means for holding the belt taught;
b. a crusher comprising an upper crushing means for breaking down large polystyrene scrap pieces into smaller polystyrene scrap pieces, and further comprising at least one row of crusher gears for crushing large polystyrene pieces into smaller polystyrene pieces, and a lower crushing means for further breaking down polystyrene scrap pieces from the upper crushing means, and further comprising at least two rows of crusher gears for crushing polystyrene pieces, a crusher motor for turning the upper and lower crushing means, a screen for retaining polystyrene pieces larger than a predetermined size, and allowing polystyrene pieces a the predetermined size or smaller to pass through the screen;
d. an extruder comprising a cylinder means for receiving crushed polystyrene pieces, a heating means for melting polystyrene pieces to a melting point, a screw means for urging melted polystyrene in a predetermined direction under pressure disposed within the cylinder, a nozzle through which melted polystyrene is extruded, a motor for turning the screw means; and
e. a control box capable of controlling the speed of the motors, speed of the upper and lower crushing means, temperature of the heating means, speed of the screw means.
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Abstract
An expanded polystyrene (EPS) recycling and extruding machine is shown and described. The machine comprises a conveyor for transporting waste pieces of EPS of various sizes into the device. A housing surrounds upper and lower crushers that break down the EPS pieces in to progressively smaller pieces before depositing them through a screen that selectively prevents pieces above a predetermined size from passing. Below the screen, the small EPS pieces fall into a heated extruding mechanism that melts the pieces into a liquid and urges the liquid forward by means of an Archimedian screw to a nozzle, through which the reconstituted EPS is extruded for collection and reuse.
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Citations
18 Claims
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1. A device for recycling extruded polystyrene comprising:
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a. a conveyer comprising a conveyor belt, motor, and tensioning means for holding the belt taught; b. a crusher comprising an upper crushing means for breaking down large polystyrene scrap pieces into smaller polystyrene scrap pieces, and further comprising at least one row of crusher gears for crushing large polystyrene pieces into smaller polystyrene pieces, and a lower crushing means for further breaking down polystyrene scrap pieces from the upper crushing means, and further comprising at least two rows of crusher gears for crushing polystyrene pieces, a crusher motor for turning the upper and lower crushing means, a screen for retaining polystyrene pieces larger than a predetermined size, and allowing polystyrene pieces a the predetermined size or smaller to pass through the screen; d. an extruder comprising a cylinder means for receiving crushed polystyrene pieces, a heating means for melting polystyrene pieces to a melting point, a screw means for urging melted polystyrene in a predetermined direction under pressure disposed within the cylinder, a nozzle through which melted polystyrene is extruded, a motor for turning the screw means; and e. a control box capable of controlling the speed of the motors, speed of the upper and lower crushing means, temperature of the heating means, speed of the screw means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of converting waste expanded polystyrene (EPS) into solid extruded polystyrene comprising the steps of:
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a. providing a device for receiving, crushing, melting and extruding polystyrene; b. activating the device, including heaters, allowing the device to reach a predetermined temperature; c. placing waste expanded polystyrene into the device and collecting extruded material in a means for collecting extruded polystyrene; - View Dependent Claims (17, 18)
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Specification