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TECHNOLOGY SPECS

GRSI owns the technology that is a U.S. Patented, semi-cryogenic tire recycling process known as the GRSI1 System. It is environmentally friendly, economically viable (even without tire tipping fees) and reduces scrap tires into a -5 to ‘30 mesh or finer clean crumb rubber, with a uniquely smooth morphology and saleable intact steel wire and fiber cording. Our process doesn’t use liquid nitrogen, but freezes the rubber, and then passes it through a our patented fracturing mill which breaks the rubber apart, instead of cutting it, thereby, exposing the whole strands of steel and fiber, leaving a value added crumb rubber that is best suited for extrusion molding recycled rubber products and higher end performance surfaces.

The GRSI1 offers the following advantages:

 

  • Stable and predictable processing costs

  • Lower operating costs

  • Lower break-even point

  • Favorable energy consumption versus competing technologies

  • No environmental problems

  • Simplicity and ease of management

  • High value crumb rubber output

  • All output products are saleable

  • High flexibility of system configuration to meet a wide variety of input and output requirements, and, the modularity of the system allows the capability of disassociating the tire preparation module from the rest of the system, thus reducing logistics issues of moving scrap tires and reducing the transportation cost per tire in relation thereto.

Specifications

 

  • 100 feet in length, 25 feet high, 50 feet wide

  • Requires 750Kwh per hour at 440 volts

  • Annual processing capacity is 2 million tires for 24/7 day operations, 28 day operations per month with 2 days off for maintenance

  • Recovery of the available crumb rubber is over 90%

Tire Inventory Pre-Inspection and Sorting Station

 

Inventories of tires should be maintained at a level commensurate with daily consumption and, including a buffer based on the established minimum quality to be able to operate for some duration of time (e.g.2-3 days) in case regular tire supply is interrupted or perhaps as a function of the local codes and regulations applicable to the plant location.

 

Operators feed the pre-inspected tires by conveyor from the receiving area to the initial GRSI1 section, the Tire Preparation Unit.

 

Tire Preparation Unit

 

Whole tires, after inspection, will be put through a rasper or a shredder to reduce the tire into pieces that will then be fed into our freezing chamber

 

Air Plant

 

The Air Plant cools air to approximately -1230C by successfully compressing, cooling and expanding ambient room air. It requires a 24 hour human operator, but runs by computer. The cold air goes directly into the Freezing Chamber.

 

Freezing Chamber

 

Tire pieces are transported from accumulator silos by belt conveyors to the air lock entrance of the freezing chamber. The pieces enter the freezing chamber at the bottom and are discharged from the top, into the fracturing mill. Air at -1230C from the Air Plant enters the top of the freezing chamber and discharges into a re-circulation system at the bottom. The super cooled air freezes the tire pieces in a counter-current manner, thus creating an efficient thermo-dynamic process. The freezing process takes approximately 30 minutes.

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