Patent ID: 9556385
Date: 2017-01-31
CPC Classifications: C08J,C10G

Claim:
1. A refining apparatus for recycling waste plastics at least comprising: a feeding device providing waste plastics; a pyrolysis furnace having a rotary kiln and a burner, the rotary kiln connected with the feeding device for receiving the waste plastics and being rotating, the burner being assembled under the rotary kiln and burning a fuel for providing heat to the waste plastics in the rotary kiln, so as to crack the waste plastics to produce a plastic gas; a chloride-decomposing device having ammonia and being assembled above the rotary kiln, wherein chlorine of the plastic gas is removed and a first oil gas and a mixed gas are produced by reacting the plastic gas with the ammonia in the chloride-decomposing device; a first condensation device connecting with the chloride-decomposing device for enabling the first oil gas and the mixed gas floating into the first condensation device, wherein the first condensation device condenses the first oil gas to produce a raw oil; a temporary storage being assembled under the first condensation device and receiving the raw oil; a still receiving the raw oil from the temporary storage and heating the raw oil to produce a second oil gas; a sieve plate tower connected above the still for enabling the second oil gas floating upwardly in the sieve plate tower, and having a plurality of sieve plates arranged in a vertical direction orderly sieving the second oil gas, respectively; wherein a heavier oil gas of the second oil gas is transformed into an oil via the sieve plates and sent back to the still, and a lighter oil gas of the second oil gas floats through the sieve plates to produce a third oil gas; a second condensation device connecting with the sieve plate tower and condensing the third oil gas to produce a finished oil; and a receiving tank being assembled under the second condensation device and receiving the finished oil.