System and method for treating maize straws

A corn stalk and straw technology, applied in the field of corn stalk processing system, can solve the problems of reducing biomass oil and biomass gas yield, increasing pyrolysis energy consumption, affecting the quality of biomass charcoal, etc., and achieving resource utilization , Reduce pyrolysis cost, high quality effect

Pending Publication Date: 2019-03-22
WUHAN RUNDO BIOTECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, corn stalks contain a large amount of ash. If they are directly pyrolyzed, it will not only reduce the yield of biomass oil and biomass gas, but also affect the quality of biochar, and increase the energy consumption of pyrolysis.
[0003] Therefore, the existing technology for processing corn stalks needs to be further studied

Method used

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  • System and method for treating maize straws
  • System and method for treating maize straws
  • System and method for treating maize straws

Examples

Experimental program
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Effect test

Embodiment 1

[0094] refer to Figure 9 , the corn stalks are supplied to the crusher for crushing treatment to obtain corn stalk granules (particle size greater than 8 mesh), and then the corn stalk granules are supplied to the stirring tank and mixed with wood vinegar to obtain the corn stalks after acid leaching and waste acid (Based on 1kg of corn stalk particles, the amount of wood vinegar is 15L, and the acid leaching time is 6 hours). After acid leaching, the corn stalks are supplied to the dryer for drying treatment (drying temperature is 60°C, and the drying time is not less than 20min) , to obtain dry corn stalks (moisture content lower than 40%); dry corn stalks are supplied to the granulator for briquetting to obtain briquettes of straw (the briquettes of straw are 30mm wide, 300mm high, and 40mm long, and the briquettes of straw after extrusion Block moisture content 3 ), straw briquettes are supplied to the rotary bed pyrolysis furnace for pyrolysis treatment (pyrolysis treatm...

Embodiment 2

[0096] refer to Figure 9 , the corn stalks are supplied to the crusher for crushing treatment to obtain corn stalk granules (particle size greater than 8 mesh), and then the corn stalk granules are supplied to the stirring tank and mixed with wood vinegar to obtain the corn stalks after acid leaching and waste acid (Based on 1 kg of corn stalk particles, the amount of wood vinegar is 20L, and the acid leaching time is 4 hours). After acid leaching, the corn stalks are supplied to the dryer for drying treatment (the drying temperature is 90°C, and the drying time is not less than 20 minutes) , to obtain dry corn stalks (moisture content lower than 40%); dry corn stalks are supplied to the granulator for briquetting to obtain briquettes of straw (the briquettes of straw are 30mm wide, 300mm high, and 50mm long, and the briquettes of straw after extrusion Block moisture content 3 ), straw briquettes are supplied to the rotary bed pyrolysis furnace for pyrolysis treatment (pyroly...

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Abstract

The invention discloses a system and a method for treating maize straws. The system comprises a crusher, a mixing pool, a dryer, a granulator and a pyrolysis device, wherein the crusher is provided with a maize straw inlet and a maize straw particle outlet; the mixing pool is provided with a maize straw particle inlet, a vinegar inlet, an acid-leached maize straw outlet and a waste acid outlet; the maize straw particle inlet is connected with the maize straw particle outlet; the dryer is provided with an acid-leached maize straw inlet and a dry maize straw outlet; the acid-leached maize strawinlet is connected with the acid-leached maize straw outlet; the granulator is provided with a dry maize straw inlet and a straw briquette outlet; the dry maize straw inlet is connected with the dry maize straw outlet; the pyrolysis device is provided with a straw briquette inlet, a pyrolytic oil gas outlet and a pyrolytic carbon outlet; the straw briquette inlet is connected with the straw briquette outlet. By using the system to treat the maize straws, the pyrolysis efficiency is remarkably improved; the oil yield of obtained biomass is greatly improved; the obtained biomass and pyrolytic gas have higher quality.

Description

technical field [0001] The invention belongs to the technical field of biomass new energy, in particular, the invention relates to a system and method for processing corn stalks. Background technique [0002] Pollution caused by straw burning has been plagued by air pollution problems across the country. In order to find a fundamental solution, the Academy of Environmental Sciences cooperated with the Institute of Chemical Industry and Metallurgy, Chinese Academy of Sciences to complete the technical research project of "Using biomass resources such as corn stalks to develop pyrolysis oil and mixed organic calcium salt desulfurization and denitrification agent". However, corn stalks contain a large amount of ash. If they are directly pyrolyzed, it will not only reduce the yield of biomass oil and gas, affect the quality of biochar, but also increase the energy consumption of pyrolysis. [0003] Therefore, the existing technologies for processing corn stalks need to be furth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B43/00C10B53/02C10B57/00C10B57/10
CPCC10B43/00C10B53/02C10B57/00C10B57/10Y02E50/10
Inventor 胡国卿李相宏
Owner WUHAN RUNDO BIOTECHNOLOGY CO LTD
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