High molecular waste pyrolysis catalysis conical rotary reaction kettle

Abstract

The invention discloses a high molecular waste pyrolysis catalysis conical rotary reaction kettle which comprises a rotary reaction kettle cylinder and a rotary reaction kettle power large gear ring, wherein the cylinder is conical, the smaller end is positioned at the inlet end, and the bigger end is positioned at the outlet end; a heating furnace body is sheathed outside the cylinder, and a clearance is arranged between the heating furnace body and the cylinder; both ends of the cylinder are respectively provided with a spherical crown end socket, and the two spherical crown end sockets are respectively provided with an inlet tube and an outlet tube; both ends of the cylinder are respectively provided with an inlet support rolling ring and an outlet support rolling ring matched with corresponding supporting idlers; the front part of the cylinder is provided with a radial fence net; steel balls for ball milling are arranged in front of the fence net; a plurality of catalyst trays are arranged behind the fence net; and a catalyst is arranged on each catalyst tray. The invention has a reasonable structure, and has the functions of pyrolysis, catalytic modification, ball milling and gas-solid separation.

Description

technical field [0001] The invention relates to a polymer waste pyrolysis catalytic cone rotary reactor. Background technique [0002] Organic polymer solid waste refers to waste plastics, waste rubber, and waste tires contained in domestic waste. The treatment of domestic waste generally adopts several methods such as scientific landfill, incineration, sorting and classification, and pyrolysis. Landfill occupies a large amount of land, and the direct landfill of original ecological waste seriously pollutes the environment, and the cost of scientific landfill is high; incineration is a mature treatment method, the excess air coefficient of incineration is greater than 1, and the gas emission is large. A large amount of Nox gas, hexavalent Cr, dioxin and other heavy metal oxides are produced, the treatment cost is high, and the public reacts strongly. [0003] Pyrolysis is the thermal cracking of organic polymer waste under the condition of isolation of air, so that the c...

AI Technical Summary

Problems solved by technology

There is coking phenomenon in fixed bed and fluidized bed pyrolysis, which often makes the production uncontinuous

The liquid product of the one-step pyrolysis process has a high content of olefins, which is very unstable and affects the use; the two-step process has a large number of equipment, high energy consumption, large oil loss, and large investment.

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