Zoned-temperature-control rotary continuous pyrolyzing and carbonizing device for biomass

Abstract

The invention discloses a zoned-temperature-control rotary continuous pyrolyzing and carbonizing device for biomass. The device comprises a kiln and a rotary furnace arranged in the kiln. The rotary furnace slowly rotates; a furnace head is installed at the head end of the rotary furnace, a furnace tail is installed at the tail end of the rotary furnace, and the furnace head is connected with a feeding device; the rotary furnace is sequentially divided into a plurality of zones in the length direction of a furnace body, independent temperature measuring devices are arranged in the portions, in all the zones, of the kiln, and a plurality of ignition devices, a plurality of gas pipes and a plurality of oxidant gas pipes are further arranged in the portions, in all the zones, of the kiln; flow deflectors are arranged in the rotary furnace. As the rotary furnace is divided into the zones, and the gas inflow and the air inflow in the portions, in all the zones, of the kiln are controlled to carry out zoned temperature control, the different temperatures at all the zones of the rotary furnace can be independently controlled, energy can be fully saved, and carbonizing efficiency can be improved; due to rotation of the rotary furnace and guide of the flow deflectors, straw slowly rotates forwards in the rotary furnace, and therefore the drying process, the pre-carbonizing process and the carbonizing process of the straw are achieved in the rotary furnace.

Description

technical field [0001] The invention relates to a biomass carbonization device, in particular to a zoned temperature control rotary continuous pyrolysis straw carbonization device. Background technique [0002] With the depletion of oil and the deterioration of the ecological environment, it is imperative to find new energy sources to replace fossil energy sources, among which biomass energy has attracted much attention in recent years. Crop biomass, such as straw, is the fourth largest energy source in the world after coal, oil and natural gas. [0003] At present, it is more common to compress biomass such as straw and directly use it as solid fuel to generate electricity. This method has the disadvantages of low energy utilization rate and secondary environmental pollution. As an ancient and very effective treatment method, straw pyrolysis has always been recognized by everyone. Whether it is straw gasification or liquefaction, it is essentially a pyrolysis process of st...

AI Technical Summary

Problems solved by technology

However, the existing straw carbonization equipment generally has low output, high energy consumption, serious heat loss, poor carbonization quality and low production efficiency.

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