METHOD AND DEVICE FOR PROCESSING RUBBER WASTES Russian patent published in 2010 - IPC B29B17/00 

FIELD: process engineering.

SUBSTANCE: invention relates to processing of wastes and can be use in chemical and rubber industries to produce ingredients of rubber mixes from petrochemical stock wastes. Incompliance with proposed method, rubber wastes, particularly worn-out ties are fed in movable container reactor fro first loading/unloading chamber to be subjected to thermolysis in heat carrier containing superheated steam continuously forced through wastes layer. Formed gaseous phase with withdrawn from the reactor and, partially, returned into the latter mixed with steam, preferably, with steam-to-gaseous phase-ratio of 1:(1.0-5.0). Solid phase is withdrawn from the reactor in moving the container back into first loading/unloading chamber on turning said container relative to lengthwise axis. Then it is ground and subjected to magnetic treatment for separation of metal inclusions. Portion of withdrawn gaseous phase is cooled to separate liquid phase condensed thereat. Gaseous phase not condensed is fired using released heat for superheating of steam. Then the process is repeated by loading wastes into reactor from second loading/unloading chamber and in moving container into second loading/unloading chamber after thermolysis termination. Solid and liquid phase produced in said process are used, for example as fuels or separately, or on mixing them to produce fuel dispersion. In the latter case, solid phase is ground to grains size of 1.0-3.0 mm to perform magnetic treatment and further grinding to, for example 0.05-0.1 mm. A portion of water is extracted from liquid phase to have its content in said phase varying from 5 to 18 % by weight. Now, liquid and solid phases are mixed in mixed at weight ratio of (0.75-1.50):1 and obtained mix is subjected to circulation via disperser by dispersing pump for 600-3600 s. Proposed device comprises thermolysis reactor representing a chamber with gas ducts to feed/discharge steam-gas mix, steam generator, steam superheating heat exchanger, heat exchanger heating furnace, blower to force steam-gas mix through reactor and heat exchanger communicated with gas duct to discharge steam-gas mix from reactor, condenser and separator, as well as two loading/unloading chamber with containers on trucks. Said loading/unloading chambers are arranged on opposite sides of the reactor are connected thereto by gate locks. Every container comprises chamber with no-cave-in grid and gas-steam mix feed branch pipe arranged at container bottom, and mechanism of turning about lengthwise axis. Said bottom part of every loading/unloading chamber is connected with belt conveyor whereto connected are grinder and magnetic separator, and, in case, fuel dispersion is produced, it includes centrifugal mill, accumulating hopper and mixer representing a vessel with mixer and circulation dispersing pump. Said mixer communicates with liquid product discharge from condenser via separator and accumulating tank.

EFFECT: production of fuel dispersions at lower power consumption.

13 cl, 1 dwg, 2 ex