This saves the energy-consuming and time-consuming process of cutting the steel ring, dicing, grinding and separating the steel wire and the fiber by the waste tire, and the efficiency is greatly improved, and the pulverization is carried out in the liquid nitrogen, and the environment is not polluted.
The principle of this experimental device is shown in Fig. 2-16. It includes two parts: high-voltage high-current pulse discharge power supply and low-temperature electric explosion pulverizer. The discharge power supply includes rectification and charging system, storage capacitor group, discharge switch and trigger system. Transmission cable, etc. The pulverizer includes a low temperature discharge chamber, an electrode and gap system, a pressing mechanism, and the like.
First, the tire block (with steel wire and cord) 7 is placed in liquid nitrogen in the low-temperature discharge chamber 10 to be pre-cooled, and the second electrode is placed in the vicinity of 7, and the compacting system (not shown) will be 7 and 8 After tightening, after the tire block is frozen and crisp, the capacitor group 2 is charged with voltage Uo, the trigger system 5 is activated, and the discharge switch 3 is turned on, so that the capacitor group 2 passes through the switch 3, and the transmission line 4 discharges to the gap G of the electrode 8. And causing a liquid-electric explosion effect, the tire block 7 placed near the gap is pulverized into minute rubber particles. The tire containing the steel wire and the curtain was subjected to a pulverization experiment using the above apparatus. In the experiment, the capacitance C=2~10F; the voltage Uo|=30~50kV; the discharge current I=100~250 kA.
Article from Hong Kong waste plastic recycling
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