Pyrolysis reactor for heating solid heat carrier

Abstract

The invention relates to the technical field of solid waste pyrolysis, and particularly discloses a pyrolysis reactor for heating a solid heat carrier, which adopts a solid heat carrier heat supply mode, a horizontal single shell and a central shaft structure, and compared with a jacketed gas heat carrier pyrolysis reactor, the pyrolysis reactor has the advantages of simple structure, high reliability and capability of realizing large-scale solid material pyrolysis. According to the pyrolysis reactor, continuous spiral and single paddle blades are adopted as pyrolysis assisting blades, the blades are arranged in an overlapped and staggered mode, uniform mixing of a solid heat carrier and pyrolysis materials is achieved, uniformity of the pyrolysis degree in the same period is guaranteed, and meanwhile the pyrolysis reactor has the self-cleaning functions of conveying, mixing, crushing, winding prevention and blocking prevention.

Description

technical field [0001] The invention belongs to the technical field of pyrolysis of solid waste, in particular to a pyrolysis reactor used for heating solid heat carrier. Background technique [0002] Pyrolysis technology adopts the principle of anaerobic pyrolysis to convert solid materials from low energy density substances into high energy density oil, gas and pyrolytic carbon. It has become an extremely A new type of solid waste treatment technology with great development potential, widely used in garbage, biomass and other fields. [0003] Pyrolysis reactor, as the core equipment in the pyrolysis device, has different structural types according to different pyrolysis processes, mainly including fixed bed reactor, fluidized bed reactor, rotary kiln or auger, etc. At present, many domestic rotary kiln structures are adopted, which adopt jacket structure and use gas heat carrier to supply heat to the pyrolysis reaction process, which can ensure the residence time of mater...

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Problems solved by technology

At present, many domestic rotary kiln structures are adopted, which adopt jacket structure and use gas heat carrier to supply heat to the pyrolysis reaction process, which can ensure the residence time of material pyrolysis, but the mixing effect of internal pyrolysis materials is relatively poor, and the pyrolysis process is not stable. Uniform, easy to cause carbon deposition at the bottom of the inner wall of the inner shell

In addition, the high temperature sealing problem of the rotary kiln has not been well solved

[0006] Based on the above, for solid waste with complex components, such as domestic waste, problems such as entanglement, bridging, and blockage caused by local coking are prone to occur during the pyrolysis process. So far, there has been no research and development of a high heat transfer efficiency, simple structure, Pyrolysis reactor with large-scale processing capacity, good anaerobic sealing, anti-clogging and high reliability, which is beneficial to engineering applications

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