TH2001006039A - Methods for obtaining carbon-containing materials from recycled tires and/or rubber products. - Google Patents

Abstract

DEPCT64 This invention is related to the recovery of raw materials from rubber products. which is mostly recycled tires Methods for obtaining carbon-containing materials from recycled tires and/or rubber products, including: crushing raw materials from recycled tires; and/or mechanical rubber products in shredders; Feed the reactor. and pyrolysis at pyrolysis temperature of rubber with Formation of vapor-gas products and the rest is solid; The use of pyrolysis products that are Gases continuously exit the reactor, followed by condensation of the liquid products in the column. condensation of liquid fractions, unloading of solid residues from the reactor and cooling of the remainder thereof; feeding the cooled residue into the grinder; grinding rough solid residue; Removing the metal from the crushed solid residue in a magnetic separator; which is characterized by that before mechanical grinding, the metal bead ring will be eliminated from recycled tires; Before feeding the feed into the reactor, an inhibitor is introduced. 3-20% by weight of coking into the feed. and contains components of the solid coking inhibitor, which is a combination of thermoplastic linear polymers. Selected from a range that includes: polyethylene, polypropylene, polyethylene terephthalate, polystyrene: and liquid coking inhibitor components. , polymethylsiloxane in the amount of 0.5-1.0% by weight of the inhibitor; The pyrolysis of the feed in the reactor is carried out at pyrolysis from 350 °C in the main operating zone of the reactor to 600 °C at the reactor outlet; Removal of metal from the crushed solid residue In the demagnetizer this is done until the metal content does not exceed 0.1% of the total mass of the solid residue, after which the solid residue is processed and activated with hot steam. superheated at 250-350 °C in a steam bath and crushed the activated solid residue in a vortex mill; carry out classification It is a two-stage process of solid residue: at the screening machine by releasing the solid residue. Solids descend through an upward air stream from where fine fractions are delivered to the machine. electrical mass classification For a more detailed classification and screening fractions which have size Large is then sent to a hopper, etc., or to a hot furnace where the remaining carbon is removed. Additional products are produced as ore constituents or re-grinded in Vortex pulverizers, where fine fractions of the solid residue are also fractionated in mass classifiers. Electricity goes to fractions F1, which are smaller than 45 µm (F1 45 µkm); Solid residual powder of F2 fractions larger than 45 µkm (F2 > 45 µkm) is returned from an electro-mass classifier to a vortex mill for repeated grinding; F1 powdered fractions smaller than 45 µm (F1 45 mm); Powder of solid residue of F2 fractions larger than 45 mm (F2 > 45 mm) is returned from the electric mass classifier to the warp crusher. Tex for repeated grinding; F1 powder fractions smaller than 45 mm (F1 <45 mm) are delivered from the electromass classifier to the hopper. and then to the packaging machine or pelletizing machine. The pre-packaged product is then delivered to the consumer. or to the warehouse TECHNICAL RESULTS: Make it possible to obtain carbon-containing materials from tires and/or Recyclable rubber products suitable for tire manufacturing and/or new rubber products

Claims (1)

DEPCT64 1. Methods for obtaining carbon-containing materials from recycled tires and/or rubber products, including the crushing of raw materials from recycled tires and/or mechanical rubber products in shredders; Feed the feed to the reactor. and pyrolyzing with the formation of Vapor-Gas Products and Solid Residues Continuous removal of the gaseous pyrolysis product from the reactor, followed by condensation of the liquid product in the liquid fraction condensation column, unloading the remainder. solid out and cooling of the remainder thereof. Rough grinding of solid residues and removing the metal from the rest that is Crushed solids in a magnetic separator which has a unique feature that Before mechanical grinding, metal bead rings are removed from recycled tires. Before the feed into the reactor, 3-20% by weight of the feed is coking inhibitor added to the feed. and contains Polyethylene, polypropylene, polyethylene terephthalate, polystyrene and liquid inhibitor components of polymethyl siloxane in the amount of 0.5-1.0% by weight of the inhibitor; Pyrolysis of the feed material in the machine. The reactor is operated at pyrolysis temperatures from 350 °C in the main operating zone of The reactor reaches 600 °C at the reactor outlet. Removal of metal from the crushed solid residue in a magnetore separator This is done until the metal content does not exceed 0.1% of the total mass of the solid residue, after which the solid residue is processed. and activated with superheated steam at 250-350 °C in a steam room. and crushed the activated solid residue. In a vortex mill, a two-stage classification of the solid residue is carried out at the screening machine. by releasing the solid residue down through an upward counterflow air stream, from where the fraction The screening of the larger fractions is sent to the hopper, etc., to the hot melt furnace. which removes the remaining carbon and additional production of targeted products which are constituents of minerals or sent to be regrinded in a vortex grinder which The fine fraction of the solid residue is divided in an electromass classifier. The solid residue of F2 fractions larger than 45 µkm (F2 > 45 µkm) was returned from the mass classifier. electrically to the vortex grinder for repeated grinding F1 powder fractions smaller than 45 µkm (F1 45 mm) Solid residue powder F2 fractions larger than 45 mm (F2 > 45 mm) are returned from the electromass classifier to the Vortex grinders for repeated grinding F1 powder fractions smaller than 45 mm (F1 <45 mm) are delivered from the electromass classifier to the hopper. and then to the packaging machine or tablet making machine