American Plant & Equipment
16.1 GRANULATORS   
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REFERENCE NUMBER: G-2203
RECYCLING PLANT FOR CAR AND TRUCK TIRES WITHOUT RIMS:

Plant description:

The plant featured in the quotation serves to recover rubber granulate
from car and truck tires for high quality recycling of the granulate.
An environment-friendly procedure of hot grinding has been selected for
ecological reasons. The aim is to obtain clean granulate measuring <1 mm resp. 1-4 mm.
The granulate will be separated in three groups, we recommend to dispose the
size < 0,25 mm as this fraction is mainly sand:

- product I 0,25 – 0,8 mm (suggestion)
- product II 0,8 – 1,8 mm (suggestion)
- product III 1,8 – 4,0 mm (suggestion)

The whole plant is divided into four parts:

- Pre-shredding
- Granulation
- Grinding
- Sieving and cleaning

The pre-shredding section includes an efficient working rotor shear and a
disk sieve with recovery of oversized granulate. The rotor shear consists
of a very high-powered drive and is specially designed for shredding old tires.
This machine has an extremely robust design and has been used successfully
all over the world since 1992 for shredding of tires. The possibility of
replacing the complete blade shafts at once results in the short stand-still
periods for this machine.
The tires will be thrown in the hopper serving the cutter module, which shreds
the tires. A conveyor belt brings the shredded material to a disk sieve.
Pieces larger than 200 x 200 mm are separated out and returned to the rotor shear.
Another conveyor belt brings smaller pieces to a tip. From here the tire
pieces can be conveyed to the granulating part.
This part of the plant is to be erected outside. The advantage of this is that the
"dirty" part of the plant resulting from the tires frequently being full of sand
and water, is kept outside the production building.
A wheel loader brings the hand-sized tire pieces from the tip to an automatic bunker.
The tire pieces are conveyed to the granulating and grinding sections. This part
of the plant consists primarily of two successive, efficient granulators and two
parallel working cutting mills. The first granulator is equipped with a sieve
with 22 mm holes to expose the steel fraction as far as possible. The second
granulator has a 15 mm sieve.
After granulation, the metallic fraction is separated out by a magnetic separator
and conveyed directly into a container erected outside. The first granulator is
larger and stronger than the second because it has to perform most of the shredding
work, and the second granulator has to deal with less metal.
The state-of-the-art granulators have been rated specially for tire granulation,
integrating all the experience bomatic has gathered in the production of shredding
machines. The heart of the granulator is the rotor shaft, consisting of individual
parts rather than one single piece. This results in a slim rotor whose rotation energy
can be braked more easily in case of any incidents. Individual rotor brackets are
pushed onto a shaft and then screwed together. The blades are screwed to the rotor
brackets. In the event of any damage, individual rotor brackets can be replaced rather
than having to dismantle the whole shaft. Other advantages include among others a
sliding clutch to separate the motor/shaft and spherical roller bearing located outside
the cutting chamber. The cutting module is hydraulically hinged to guarantee fast access
to the blades and to provide added safety.
After the second granulation and another metal separation stage, the material is
conveyed into a sieve machine where parts smaller than 4 mm are already sieved out
to relieve the load on the following mill. The rest is conveyed into a cutting
mill with 4 mm sieve where it is grinded.
For ecological reasons, every granulator and the cutting mills are equipped with
extraction systems with an output of 5,000 m³/h. This keeps the surroundings
practically dust-free, and also cools the machines at the same time. The quoted
filtration system is supplied in a pressure capsule. This dust extraction system
produces cleaned air corresponding to the regulations in the German Clean Air Act.
The material is sucked out of the mill into another bunker where it is conveyed
in dosed quantities via an elevator and through a drum magnet where once again
the tiniest steel particles are separated out of the product flow. The sieve
machine mounted on rubber anti-vibration pads separates the product flow into
three fractions (textiles, granulate 0,25 – 4 mm, > 0,25). Another elevator
then conveys the granulate to another sieve machine to separate the granulate
in final size fraction. From here each size will be transported to the separation
tables to separate minerals out of the granulate. The next processing stage
consists of further textile separation which separates out the remaining fluff
fraction from the granulate. Finally the product passes another vibration sieve
and is filled in big bags.
Both the granulating machine and the cleaning machine are equipped with an
efficient dust extraction system for extraction and filtration of the air in
the areas with dust development.
The corresponding control systems in the central switchboard are monitored by a
SIEMENS system to guarantee safe operation of the plant.
In brief, it can be said that this plant is environment-friendly; the hot grinding
process does not use any chemicals and the whole plant produces no pollution of
the air, water or soil.


REFERENCE NUMBER: G-1320
HIGH SPEED RECYCLING MACHINE FOR SALE:
TO PROCESS CLEAN OR BROKEN PP/PE PLASTIC PIECES INTO GRANULES
THAT CAN BE REUSED AS RAW MATERIALS.
THE HELICAL GEAR REDUCER MADE OF 20CRMNTI ALLOY STEEL.
EXTRUDER AND THE SCREW AND CYLINDER ARE MADE OF 38CRMOA1A ALLOY
STEEL AFTER NITROGENIZATION TREATMENT TO INCREASE DURABILITY.
CONSISTS OF MAIN EXTRUDER AND SUB-EXTRUDER, WATER TANK AND CUTTING
SECTION WITH ALLOY ROTARY CUTTER.
COLLOCATED WITH DRYING FAN.

MAIN TECHNICAL VARIABLES:

MODEL: D135/110
DIAMETER OF SCREW:
-MAIN SCREW: 135mm
-SUB-SCREW: 110mm
L/D/RATIO:
-MAIN SCREW: 20:1
-SUB-SCREW: 12:1
POWER OF MOTOR:
-MAIN SCREW: 37mm
SUB-SCREW: 15mm
SPEED OF SCREW: 10 TO 120 RPM
TOTAL HEATING POWER: 60 KW
CAP CITY: 150 TO 200 KG/H
POWER OF CUTTER: 3
WEIGHT: 5000 KGS
DIMENSIONS: 6500×4000×1500

MODEL: D115/90
DIAMETER OF SCREW:
-MAIN SCREW: 115mm
-SUB-SCREW: 90mm
L/D/RATIO:
-MAIN SCREW: 20:1
-SUB-SCREW: 12:1
POWER OF MOTOR:
-MAIN SCREW: 30mm
SUB-SCREW: 11mm
SPEED OF SCREW: 10 TO 120 RPM
TOTAL HEATING POWER: 50 KW
CAP CITY: 120 TO 150 KG/H
POWER OF CUTTER: 2.2
WEIGHT: 3000 KGS
DIMENSIONS: 6000×3500×1500
(CLICK HERE FOR PICTURES)





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