Novel low-energy-consumption cracking furnace and method for cracking polyethylene into wax

Abstract

The invention provides a novel low-energy-consumption cracking furnace and a method for cracking polyethylene into wax. The novel low-energy-consumption cracking furnace comprises a cracking furnace body, wherein the upper part of the cracking furnace body is provided with a feeding opening; the top of the cracking furnace body is provided with a gas outlet; a tubular rotating body is vertically fixed inside the cracking furnace body; paddles are fixed on the outer wall of the tubular rotating body and are spirally arranged on the outer wall of the tubular rotating body; the bottom of the cracking furnace body is provided with a fast connecting pipe connector; a connection part of the fast connecting pipe connector is provided with a lysate filter net; the fast connecting pipe connector is communicated to a lingering cracking device through a fast connecting joint and a pipeline; a heat insulation layer is arranged at the outer side of each of the cracking furnace body and the lingering cracking device. The novel low-energy-consumption cracking furnace has the beneficial effects that the invested equipment is simple; the equipment purchasing cost can be reduced; the energy consumption is low; the continuous production efficiency is high; the method is advanced and feasible in the technical aspect; the investment is less; the raw material range is wide; the effect taking speed is high; the prospects are good; the goal of realizing social, environment and economic benefits can be achieved; the process method is simple.

Description

Technical field [0001] The invention relates to the technical field of waste polyethylene cracking, in particular to a method for cracking polyethylene into wax in a novel low-energy cracking furnace. Background technique [0002] Plastics are widely used in various fields and people's daily lives. At present, the total amount of plastic products in the world has already exceeded 100 million tons. In 2010, my country’s plastic products increased to 60 million tons, and the total amount of waste plastics will also increase sharply. The output of polyethylene accounts for about 1 / 4 of the total output of plastics. How to develop new processes to solve the technical problems of waste polyethylene recycling and achieve high Value-added recycling of waste plastics has become the focus of current research in the field of waste plastic recycling. [0003] At present, most of the recycling technology of waste polyethylene uses boiler high temperature, high pressure cracking or screw heatin...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the waste polyethylene recycling technologies use boiler high-temperature, high-pressure cracking or screw heating to extrude wax to produce wax. Because it involves high temperature, high pressure, and requires electricity and fuel heating, it causes three major problems: 1. The production process has great potential safety hazards. , because it involves high temperature and high pressure, it is easy to cause high-temperature material leakage and explosion to cause safety accidents; 2. The cost of production equipment is high and the technical requirements are high; 3. The consumption of electricity (or fuel) is large, which is inconsistent with the national energy-saving and emission-reduction policy

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