Fluidized bed reactor in biomass pyrolysis and upgrading system

Abstract

The invention discloses a fluidized bed reactor in a biomass pyrolysis and upgrading system. The system includes the reactor, the bottom of the reactor is provided with an opening portion, the outer end of the opening portion is provided with an outer thread, the bottom of the reactor is provided with a bottom cover, the inner portion of the bottom cover is nakedly and movably connected with the outer thread, the center of the top of the bottom cover is fixedly provided with a sealing plug used for sealing the opening portion, the center of the bottom of the bottom cover is fixedly provided with a threaded rod, the threaded rod is connected with a fixed seat in a screwed mode, the fixed seat is fixed on support legs, the support legs are fixed on the reactor, the top of the reactor is fixedly provided with a motor, the driving end of the motor is fixedly provided with a rotation shaft, the rotation shaft is embedded in the interior of the reactor, multiple stirring blades are fixed on the rotation shaft, the lower end of the rotation shaft is provided with a spiral body, the spiral body is fixed with the reactor through the connection rod, and heating electric resistance wires surround the interior of a reactor shell. The reaction efficiency is higher, particles settling to the bottom of the reactor are convenient to clean away, the heating resistance wires are isolated from the interior of the reactor, therefore, the reactor is safer and the heating speed is high.

Description

Technical field [0001] The invention relates to a fluidized bed reactor, in particular to a fluidized bed reactor in a biomass pyrolysis upgrading system. Background technique [0002] The fluidized bed reactor is a kind of reactor that uses gas or liquid to pass through the particulate solid to make the solid particles in a suspended state, and carry out the gas-solid phase reaction process or the liquid-solid phase reaction process; where the liquid and the particulate solid react The fluidized bed reactor is more common. The existing fluidized bed reactor has the following disadvantages: [0003] 1) When the granular solid reacts with the liquid, the granular solid easily sinks to the bottom of the reactor, resulting in poor suspension effect and affecting reaction efficiency; [0004] 2) When the granular solid reacts with the liquid, because the granular solid cannot be completely reacted, the particles that sink to the bottom of the reactor often need to be removed, which is t...

AI Technical Summary

Problems solved by technology

[0003] 1) When the granular solid reacts with the liquid, the granular solid tends to sink to the bottom of the reactor, resulting in poor suspension effect and affecting the reaction efficiency;

[0004] 2) When the granular solid reacts with the liquid, because the granular solid cannot be completely reacted, the particles that sink to the bottom of the reactor often need to be removed, which is troublesome;

[0005] 3) When the existing reactor is heated, the electric heater is generally placed directly in the reactor, which is unsafe and the heating speed is slow

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