Waste plastic oil refining system

Abstract

The invention discloses a waste plastic oil refining system, comprising a separation device, a self-sealing feeding device, a cracking device and a cracking gas separation device which are connected in order. The cracking device comprises a sealed heating box, a cracking kettle in the sealed heating box and a driving device for driving the cracking kettle to rotate; a heating source is arranged on the inner wall of the sealed heating box below the cracking kettle; the cracking kettle comprises an outer cylinder and an inner cylinder coaxial with the outer cylinder; a feeding pipe and a discharging pipe serving as rotation shafts are respectively arranged at the two ends of the outer cylinder; the feeding pipe and the discharging pipe are in sealing connection with connection seats at the two sides of the cracking kettle through a filler sealing device; a plurality of heat conduction pipes are arranged between the inner cylinder and the outer cylinder; and the two ends of the heat conduction pipes are in sealing connection with the side walls of the outer cylinder and the inner cylinder to ensure that the inner cylinder is communicated with the sealed heating box. The waste plasticoil refining system of the invention has simple structure, good sealing performance and high oil refining efficiency, and can realize continuous operation.

Description

technical field [0001] The invention belongs to the technical field of plastic oil refining, and in particular relates to a waste plastic oil refining system. Background technique [0002] With the rapid development of industry, plastic products have become more and more important in industrial production and people's daily life. Plastic products have penetrated into all areas of people's lives. However, due to the extensive use of plastic products, plastic waste is becoming more and more important. More and more, at present, there are many oil refining equipment that use waste plastics and waste rubber to refine fuel oil. The main process is to send waste plastics into the reactor for thermal decomposition and cracking, and then obtain them through dust removal, filtration, cooling and separation. Fuel oil, in the above process, a lot of ash and other undecomposable wastes are deposited at the bottom of the reactor after thermal cracking of waste plastics, which needs to be...

AI Technical Summary

Problems solved by technology

In this waste plastic refining system, a drying device is installed in front of the reactor, so that the waste plastic is dried before being sent into the reactor, which improves the decomposition efficiency of the waste plastic in the reactor. The undecomposable waste formed in the cracking unit still needs to be shut down for cleaning, which reduces the refining efficiency of the entire refining system

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