RU64130U1 - REINFORCED TIRES PROCESSING LINE - Google Patents

Abstract

The utility model relates to equipment for the processing of reinforced automobile and tractor tires that have exhausted their resources or have a manufacturing defect.

The aim of the proposed technical solution is to increase the degree of grinding of crumb rubber without destroying the metal and textile cords.

For this, a line including a cryo-cooler of tires with loading and unloading hatches, a tire destroyer in the form of at least two pairs of rolls, a device for removing metal and textile cords, has rolls made with knifeless, cutless, mounted in pairs one under the other with an orientation mutually perpendicular to each other, when at the exit from the last pair of rolls a finely divided grinder is installed in the form of a disintegrating device, at the outlet of which a classifier of fractionation of rubbers is installed howling crumbs, operably linked to a rotary feeder. 3 s.p. f-ly

Description

The utility model relates to equipment for the processing of reinforced automobile and tractor tires that have exhausted their life or have a manufacturing defect.

A known line for processing reinforced tires, including a machine for cutting tires into pieces, a feeder feed material for crushing, a hammer mill, a magnetic separator for crushed metal waste, a fine grinder, a device for removing textile cord and a classifier for fractioning rubber crumbs [1].

The main disadvantage of the line is the technological impossibility of obtaining intact metal and textile cords suitable for use as a finished secondary raw material.

Closest to the proposed known is a device for processing reinforced tires, containing a cryo-cooler of tires with loading and unloading hatches, a tire destroyer in the form of two pairs of rolls - finned bevel wheels, a device for removing metal and textile cords [2].

Tires are pre-cooled with a cryo-liquid sprayed by nozzles, and then destroyed by rolling between two pairs of bevel wheels made hollow to supply refrigerant.

With this device, you can immediately get clean rubber crumb and undamaged metal and textile cords suitable for use as a finished secondary raw material. However, the degree of grinding rubber crumb using such a device is not high enough.

The aim of the proposed technical solution is to increase the degree of grinding of rubber crumb without destroying the metal and textile cords of the processed reinforced tires.

This goal is achieved by the fact that the cryo-cooler of the tires is made in the form of a container allowing the tires to be frozen to embrittlement by immersing the tires in the nitrogen bath of the container, at least two pairs of rolls are made knifeless, cutless and one below the other, and installed at the exit from the last pair a rotary feeder, at the output of which a fine-sized grinder is installed in the form of a disintegrator device, at the output of which a classifier of fractionation of rubber crumb is installed, tional associated with rotary feeder.

The work of the processing line of reinforced tires is organized as follows.

Through the heat-insulated loading hatch, the tire is sent to the heat-insulated container of the cryo-cooler, which is a bath with liquid nitrogen for immersion of the tire in it.

From a container through a heat-insulated discharge hatch, a tire cooled in a nitrogen bath enters a tire destroyer consisting of at least two pairs of rolls arranged in pairs one under the other and oriented mutually perpendicular to each other.

At the exit from the last (lower) pair of rolls, the material that has passed the roll breaker is divided, for example, on an inclined vibratory tray into rubber crumb and cord.

Dosage portions of rubber crumb are fed through a rotary feeder to a finely divided grinder (see Fig. 1) in the form of a disintegrator device, at the outlet of which a classifier of crumb is installed, which is functionally connected with the rotor feeder in the part of the crumb to be refined in the disintegrator to the required fraction technology .

In Fig.1: 1 - the case; 2 - boot heat; 3 - disintegrator; 4 - spikelet lattice (sieve); 5 - trellised vibratory tray; 6 - sieve drum; 7 - bucket; 8 - tray; 10 - viewing window; 13 - sieve drum drive; 14 - tray drive.

The proposed technical solution fine grinding of rubber crumb without breaking the metal and textile cords in the tires to be processed is carried out by:

1) high speed embrittlement tires in the nitrogen bath of the cryo-cooler container;

2) the coordinated (in time and speed) operation of two mutually perpendicular roll pairs;

3) dosed supply of rubber crumb by a rotary feeder (after removing the cord) into a finely divided grinder - disintegrator;

4) the classification of rubber crumbs by fractions at the outlet of the disintegrator device, functionally connected with a rotary feeder direct and feedback.

Claims (4)

1. A processing line for reinforced tires, including a cryo-cooler of tires with loading and unloading hatches, a tire destroyer in the form of at least two pairs of rolls, a device for removing metal and textile cords, characterized in that the rolls are made non-knife, cutless and mounted in pairs one under another with orientation mutually perpendicular to each other. 2. The line according to claim 1, characterized in that a rotary feeder is installed at the outlet of the last pair. 3. The line according to claim 1, characterized in that at the exit of the rotary feeder a finely divided grinder is installed in the form of a disintegrator device. 4. The line according to claim 1, characterized in that at the outlet of the disintegrator device a classifier of fractionation of rubber crumb is installed, functionally connected with a rotary feeder.