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Self-heating carbonization furnace and method for gravity flow biomass gas-solid classification

A mobile biomass, self-heating technology, applied in the field of agricultural waste resource utilization, can solve the problems of high energy consumption, poor gas release and low carbonization quality of carbonization devices, and achieve high carbon production rate and energy utilization rate. High, uniform effect of pyrolysis carbonization

Active Publication Date: 2021-03-30
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the above technical problems, to provide a self-heating carbonization furnace and method for gravity flow biomass gas-solid classification, and the present invention can solve the problem of low carbonization quality, poor gas release, and serious tar blockage in the carbonization process. , The carbonization device consumes a lot of energy, and the energy utilization rate is low, etc.

Method used

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  • Self-heating carbonization furnace and method for gravity flow biomass gas-solid classification
  • Self-heating carbonization furnace and method for gravity flow biomass gas-solid classification
  • Self-heating carbonization furnace and method for gravity flow biomass gas-solid classification

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Embodiment example 1

[0062] Implementation case 1: The raw material for carbonization is crop straw with an average density of 0.03g / cm 3 , the feed bin 1 can hold 1.02 tons, the material channel can hold 0.5 tons, the carbonization cycle is 8 hours, and 1.5 tons of straw raw materials can be carbonized in 24 hours. / min. The carbon production rate is about 40%, and about 30% of the total heat of 1.5 tons of materials is used for the initial temperature rise of the furnace and heat preservation during the carbonization process. Continuous carbonization produces 0.6 tons of carbon a day, and the carbon production efficiency is 0.025t / h.

Embodiment example 2

[0063] Implementation case 2: The raw material for carbonization is biomass pellets with an average density of 0.3g / cm 3 , the feed bin 1 can hold 10.2 tons, the material channel can hold 5 tons, the carbonization cycle is 10 hours, and 12 tons of biomass particles can be carbonized in 24 hours. 62.5r / min. The carbon production rate is about 35%, and about 30% of the total heat of 12 tons of materials is used for the initial temperature rise of the furnace and heat preservation during the carbonization process. Continuous carbonization produces 4.2 tons of carbon a day, and the carbon production efficiency is 0.175t / h.

Embodiment example 3

[0064] Implementation case 3: The raw material for carbonization is fresh wood chips with an average density of 0.6g / cm 3 , the feed bin 1 can hold 20.4 tons, the material channel can hold 10 tons, the carbonization cycle is 12 hours, and 20 tons of fresh wood chips can be carbonized in 24 hours. 75r / min. The carbon production rate is about 25%, and about 30% of the total heat of 20 tons of materials is used for the initial temperature rise of the furnace and heat preservation during the carbonization process. Continuous carbonization produces 5 tons of carbon a day, and the carbon production efficiency is 0.208t / h.

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Abstract

The invention discloses a gravity flow biomass gas-solid grading self-heating carbonization furnace which is characterized by comprising a feeding bin, a hearth, a pointed cone distributor, a fan outside the furnace, a central supporting wall inside the furnace, a discharging auger, a pyrolysis gas exhaust pipe, three layers of material channels and three layers of gas channels. The problems of low carbonization quality, unsmooth gas release, serious pipeline blockage caused by tar, high energy consumption of a carbonization device, low energy utilization rate and the like in the carbonizationprocess can be solved through gravity self-flowing and gas-solid graded utilization heat in-situ self-maintenance.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of agricultural waste, and in particular relates to a self-heating carbonization furnace and method for gravity flow biomass gas-solid classification. [0002] technical background [0003] my country is a large agricultural country, and the total amount of agricultural waste produced every year is very large. Agricultural waste mainly refers to materials such as crop stalks, which contain biomass resources with broad development prospects. How to efficiently use agricultural waste and Its resource utilization is favored by researchers. [0004] At present, biomass pyrolysis carbonization technology is one of the most important means for effective and convenient utilization of agricultural waste. Chinese invention patent CN201821414537.2 discloses an inclined straw carbonization furnace, the device includes a base, an inclined drum, an inlet and outlet, a hoisting plate, a rotating sha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/02
CPCC10B53/02Y02E50/10
Inventor 易宝军张子杭张旗樊啟洲刘弼臣孙正帅邓伟其邱雯奕王铖鑫
Owner HUAZHONG AGRI UNIV