Fancy spiral electronic waste pyrolysis device

Abstract

The invention relates to the technical field of waste treatment, in particular to a fancy spiral electronic waste pyrolysis device. The device comprises an electronic waste pyrolysis reactor and an electric heating system, wherein the electronic waste pyrolysis reactor comprises a material pyrolysis assembly and a reactor shell. The material pyrolysis assembly comprises a spiral sleeve and a fancy spiral. The fancy spiral is located inside a temperature section where tar is generated inside the spiral sleeve, and the fancy spiral comprises a spiral shaft and fancy spiral blades, and each fancy spiral blade is provided with a plurality of opening gaps with angles; the electric heating system comprises a heating module and an insulation layer, the insulation layer is located on the outer side of the spiral sleeve inside the closed space, and the heating module is arranged on the outer surface of the insulation layer. The device adopts the fancy spiral blades for conveying raw materials, the materials are stressed in the axial and tangential directions when passing through the fancy spiral blades, adhesion and hardening of the materials are avoided, and blockage is avoided.

Description

technical field [0001] The invention relates to the technical field of waste treatment, in particular to a fancy spiral electronic waste pyrolysis device. Background technique [0002] Due to the continuous change of temperature in the pyrolysis process of electronic waste, the products produced by pyrolysis of materials at different temperatures are different. Through experiments and data collation of related materials, it is found that the temperature is between 300~400℃, and the pyrolysis gas The production speed is accelerated, and at the same time, tar is produced at a temperature between 500 and 550 ° C. Due to the increase in temperature, the tar evaporates rapidly into a gaseous oil-gas mixture after production, and the residual solid is carbonized at a temperature between 650 and 700 ° C to form a solid residue. In the temperature range where tar is produced, because there are solids and melts in the material when the tar is just produced, the tar has the opportunit...

AI Technical Summary

Problems solved by technology

In the temperature range where tar is produced, because there are solids and melts in the material when the tar is just produced, the tar has the opportunity to stick the solid slag together. Rotating together with the screw shaft, through the accumulation of materials, it will eventually affect the ability of the straight screw to convey materials, and even block or block the heating screw, making the electronic waste pyrolysis process unable to continue or the experimental device damaged, which brings great difficulties to the production machine experiment. For example, the patent No. CN104593090A discloses a method and device for preparing synthesis gas by pyrolysis and gasification of biomass, and proposes a method and device for preparing synthesis gas by pyrolysis and gasification of biomass, wherein the method includes low temperature The three stages of roasting, high-temperature catalytic gasification and microwave reforming are carried out continuously in three relatively independent spaces in the gasification device, so as to obtain high-quality syngas

The device includes a biaxial spiral pyrolysis reactor, the front section is a roasting section, the middle section is a gasification section, and the last section is a microwave-assisted reforming section. The combination of internal and external heat of heat, catalyst heat and microwave-assisted heating provides the appropriate temperature for the three reaction stages to realize graded pyrolysis and gasification. The deactivated catalyst and coke are fed into the combustion furnace to generate high-temperature flue gas and catalyst regeneration. However, the device adopts a double-helix design and the double-helix synchronous rotation can only simply increase the conveying capacity, and cannot solve the problem of tar sticking

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