Self-heating vertical axial flow roller ablation pyrolytic reaction device

Abstract

The invention relates to a self-heating vertical axial flow roller ablation pyrolytic reaction device, and belongs to the technical field of renewable energy utilization. The device comprises a shell and a reaction cylinder arranged in the shell, a rotating shaft is arranged in the reaction cylinder, the upper end of the rotating shaft is connected with a variable frequency motor through a belt, the rotating speed of the rotating shaft can be adjusted, a first-stage spiral feeder and a second-stage spiral feeder are arranged outside the shell, the discharging end of the first-stage spiral feeder is communicated with the feeding end of the second-stage spiral feeder, and the discharging end of the second-stage spiral feeder is communicated with the upper part of the reaction cylinder. The device has the beneficial effects that the pyrolysis efficiency is improved, pushing of carrier gas and heating of a heat carrier are not needed in the reaction process, and the heating and cooling loads of the carrier gas are greatly reduced. Self-heating in the pyrolysis process is achieved, and effective utilization of energy is fully achieved. Different taper angles can adapt to the change of the size of the material, powdery, granular and other biomass raw materials can be pyrolyzed, and gas-solid separation and biomass pyrolysis can be better achieved.

Description

technical field [0001] The invention relates to a pyrolysis reaction device, in particular to a self-heating vertical axial flow drum ablation pyrolysis reaction device, which belongs to the technical field of renewable energy utilization. Background technique [0002] Biomass pyrolysis is a technology that thermally decomposes biomass to produce condensable volatile components (bio-oil), non-condensable small molecular gas (non-condensable gas) and solid product biochar in a micro-oxygen or oxygen-free atmosphere. The conversion of biomass such as agricultural and forestry residues into high-value bio-oil is a very promising thermochemical conversion technology. For biomass pyrolysis liquefaction technology, there are many kinds of pyrolysis reactors for biomass pyrolysis liquefaction to produce bio-oil, but to produce high-quality bio-oil, the choice of biomass pyrolysis reactor form is biomass pyrolysis The core and key of the device not only requires good heat and mass ...

AI Technical Summary

Problems solved by technology

The problem is that the fluidization air volume is large and the energy loss is large

[0008] The existing patent number is CN201710330591.2, which discloses a new double-rotary biomass pyrolysis liquefaction system, which uses waste heat and flue gas to dry materials, and heats the heat carrier with combustible components of charcoal and non-condensable gas. The heat carrier and materials are evenly distributed in the reaction cylinder. Mixing, pyrolysis reaction occurs, which improves the conversion efficiency of pyrolysis, but lacks a baking device for biomass materials, which reduces the quality of bio-oil or other pyrolysis products

Images