ES2258383A1 - Dissolution system for unuseable tires, has heat carrying fluid supplied into reactor tank storing discarded tires to gradually come into contact with surface of tires and soften tires until tires are dissolved - Google Patents

Abstract

A heat carrying fluid (2) is supplied into a reactor tank (8) storing discarded tires (1) to gradually come into contact with surface of tires and soften the tires until tires are dissolved. The fluid is heated to 275-350[deg]C by external heaters (3) arranged at the tank bottom for heating the tank. A preheating unit such as a heat exchanger heats the fluid before fluid supply into tank to temperature of 350-450[deg]C. The external heaters are selected from electric, gas, gas oil, fuel heaters, or heaters connected to the exhaust pipes of cogeneration engines. The fluid is selected from used car oil, commercial gas oil used in diesel engines and burners, oil derived from petroleum with a viscosity range similar to that of commercial gas oil, oil obtained by dissolving tires, and oils derived from petroleum which is stable at the temperature of 275-350[deg]C. A tube (6) supplies oil to the tank. The product resulting from the dissolving of the tires is removed from an overflow pipe (5) located in the top portion of the tank which is held at atmospheric pressure. The metal structure of the tire is stacked in the tank after dissolving the tire. The metal structure and the pieces of steel of the tire are removed for recycling.

Description

Improvements in Patent No. 200401058, for: "Tire dissolution system out of use to obtain oils, coal and steel. "

Object of the invention

The present invention, as expressed in The statement of this specification consists of improvements introduced in main Patent No. 200401058 in which describes a system for the partial transformation into fuel of the tires that are at the end of their useful life, and that It also allows to decompose the tires residuals in each of the components that form it for its reuse in various applications.

The purpose of this certificate of addition is It focuses on simplifying the system, thereby reducing the cost of Waste recovery

Background of the invention

The history closest to the present Certificate of Addition is its main Patent No. 200401058 in which a system comprising a tank is described   reactor in which tire breakdown was anticipated by applying a heat transfer fluid that enters gradually in contact with the surface of the tires that they absorb it and it softens until it dissolves, for what it is it is necessary to heat the heat transfer fluid, which when applied mainly through a shower-like system, its required preheating by means of a coil. When applying the shower of the hot heat transfer fluid, it tends to cool while falls, so it requires more warming. In said patent main does not describe the possibility of performing the tire breakdown by bathing them for which the heat transfer fluid is heated directly in the reactor tank, by heating said tank reactor, which requires a lower heating temperature, simplifies the system and reduces the recovery cost of waste.

Description of the invention

To solve the problems above indicated, the invention, like its main patent, it comprises a reactor tank in which the tires are deposited discarded, which also include means for applying a fluid heat carrier that gradually comes into contact with the surface of the tires that absorb it and soften until its dissolution; and it is characterized because it incorporates the improvement of comprise reactor heating means for heating by direct contact the heat transfer fluid that is in your inside.

The reactor heating means are determined by external heaters that are located in the part bottom of the reactor, and in one embodiment of the invention is provided that comprise a connection to engine exhaust pipes of cogeneration, for its heating, also comprising a outlet to remove gases applied to said heaters coming from the exhaust pipe.

In another embodiment of the invention the External heaters are selected among heaters electric, gas, diesel, fuel or combination thereof. It could also be combined with heaters equipped with a connection to exhaust pipes if required.

The reactor tank of the invention comprises a overflow located at the top where the matter comes out resulting from the dissolution of the tires, so that the metallic structure of the tire, after its dissolution, remains stacked in the reactor, from which it is extracted for recycling.

The temperature range at which the heat transfer fluid, according to the improvements of the invention, is of around 300ºC (275ºC-350ºC), which is a temperature lower than that required in the main patent in which regardless of heating temperatures was between 350ºC and 450ºC, since when applying the fluid heat transfer in the form of a shower cooling of the same when falling on the tires. Therefore the improvements of the invention represents an energy saving when performing the heating of the heat transfer fluid at a lower temperature.

The heat transfer fluid is composed of oils petroleum derivatives and stable in the temperature range 275ºC-350ºC, or it can be used directly fuel

The invention provides that the improvements described can be applied to dissolve any petroleum product, such as for example plastics, hydrocarbons, etc., so that a system is obtained versatile, which not only allows the dissolution of tires in the components that constitute it, but also allows this dissolution of any product derived from Petroleum.

Next to facilitate a better understanding of this specification and being part member of the same, a series of figures are accompanied in the that for illustrative and non-limiting purposes the object of the invention.

Brief statement of the figures

Figure 1.- Shows a schematic representation of the system of the invention with the improvements. Represents the beginning of the dissolution process of the tires deposited in the inside of the reactor tank.

Figure 2.- Shows a view equivalent to the previous figure, in which the dissolution process has ended of the tires, leaving therefore only its structure metal that is subsequently removed for recycling.

Description of the preferred embodiment

Below is a description of the invention based on the figures discussed above.

The system of the invention comprises a reservoir reactor (8) where the tires (1) are stored and filled by means of a heat transfer fluid (2), so that it bathes the tires (1) deposited in the reactor tank (8). Filling of the reactor tank (8) with the heat transfer fluid (2), is carried out by means of filling (6), which are determined by a conduction of said fluid (2), which as described in the Patent Main is selected from used car oil, diesel locomotion or heating, petroleum derived oils in a viscosity range similar to that of commercial diesel and that due to its properties are indicated as solvents, or by itself tire oil obtained by decomposing according to the invention.

To favor the dissolution of the tires the  The invention provides for the incorporation of extreme heaters (3) that perform the heating of the reactor tank (8), and in consequently they produce the heating of the heat transfer fluid (2) which causes the gradual dissolution of the tires (1), obtaining the different products that compose it, such as the oil obtained when decomposing and carbon in powder that dissolves in the heat transfer fluid (2).

Once the tire decomposition the oil floats and the coal powder is dissolved, and it recovered by an overflow (5) where they are expelled to exterior for recovery. To expel them over the overflow (5) more heat transfer fluid (2) is added to the interior from reactor tank 8 until it overflows.

As a result of the entire process inside the metal structure is deposited from the reactor tank (8) that of the tires, which is extracted from the top of the reactor (8) for reuse.

To heat the tank reactor (8), and consequently the heat transfer fluid (2); in a Embodiment of the invention is provided that the heaters (3) are electrical, or as already commented on gas.

In another embodiment of the invention it is envisioned that the heaters are provided with an input (7) for connection to the exhaust pipes of cogeneration engines for from these provide the energy that causes heating of the heaters In this case the heaters 3 are provided with a outlet (9) by which gases from the tube are removed vehicle exhaust.

Claims (8)

1. Improvements in Patent 200401058, for: System of dissolving tires out of use to obtain oils, coal and steel, comprising a reactor tank (8) in which the discarded tires (1) are deposited, and comprising means (6) for applying a heat transfer fluid (2) that gradually comes into contact with the surface of the tires (1) that absorb it and soften until dissolved; The improvements are characterized in that they comprise means (3) for heating the reactor to directly heat the heat transfer fluid (2) that is stored inside. 2. Improvements in the Patent 200401058, for: System of dissolution of tires out of use for obtaining oils, coal and steel, according to claim 1, characterized in that the reactor heating means are constituted by external heaters (3) that are located at the bottom of the reactor. 3. Improvements in Patent 200401058, for: "System for dissolving tires out of use for obtaining oils, coal and steel", according to claim 2, characterized in that the extreme heaters (3) comprise a connection (7) to pipes of Exhaust of cogeneration engines for heating, and an outlet (9) to remove the gases applied to said end heaters (3), coming from the exhaust pipe. 4. Improvements in Patent 200401058, for: Dissolving system of tires out of use for obtaining oils, coal and steel, according to claim 2, characterized in that the external heaters (3) are selected from electric, gas, diesel heaters , fuel or combination thereof. 5. Improvements in Patent 200401058, for: "Tire dissolution system out of use for obtaining oils, coal and steel", according to claim 1, characterized in that the reactor tank (8) comprises an overflow (5) located in its upper part, through which the material resulting from the dissolution of the tires (1) overflows, leaving the metal structure (1a) of the tire (1) stacked in the reactor tank (8) from which it is extracted for later recycling. 6. Improvements in Patent 200401058, for: System of dissolving tires out of use for obtaining oils, coal and steel, according to previous claims, characterized in that the heating temperature of the heat transfer fluid is between 275 ° C and 350 ° C. 7. Improvements in Patent 200401058, for: Dissolving system of tires out of use for obtaining oils, coal and steel, according to claim 1, characterized in that the heat transfer fluid is composed of petroleum-derived and stable oils in the temperature range 275ºC-350ºC, or directly fuel. 8. Improvements in Patent 200401058, for: Dissolving system of tires out of use for obtaining oils, coal and steel, according to claim 1, characterized in that it dissolves other petroleum products, such as plastic waste, rubber and Similar.