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Cyclic utilization device and method for preparing carbon-based organic fertilizer by carbonizing fluidized bed biomass

A technology of biomass charcoal and carbonization equipment, which is applied to the treatment of biological organic parts, fertilizers made of biological waste, steam generation methods using pressure combustion, etc., and can solve high power consumption, fuel consumption, large material and energy waste, etc. problems, to achieve good thermal insulation, efficient utilization, and improve fermentation efficiency

Inactive Publication Date: 2019-01-04
HEFEI DEBO BIOENERGY SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional charcoal industry and the fertilizer industry belong to different industries, and there is a large waste of materials and energy in production
The charcoal industry often discharges low-quality biomass gas, accompanied by the discharge of tar wastewater; the fertilizer industry often needs to provide the heat required for production by burning coal or natural gas, and a lot of high-quality energy is used for drying and low-temperature power supply. Heat, accompanied by high power consumption and fuel consumption

Method used

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  • Cyclic utilization device and method for preparing carbon-based organic fertilizer by carbonizing fluidized bed biomass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] After sorting the biomass straw, the biomass with a moisture content of ~18% is sent to the fluidized bed carbonization device. The straw and organic matter with a moisture content of ~42% mainly include 10% chicken manure, 12% pig manure, 17% cow manure, 5% sewage Mud, 27% rotten fruits and vegetables, 15% cassava residue, 2% sugar residue are mixed together, crushed and added with microorganisms, pretreated and sent to a fermentation device for fermentation.

[0043] The working temperature in the fluidized bed carbonization device is controlled at 400°C to carbonize the straw, and the fermentation gas CH is fed into the fluidized bed carbonization device. 4 Content ~ 60%, H 2 The content is ~2%, and the ratio (volume ratio) of low-parameter steam to fermentation gas is 1:6. The carbon content of straw charcoal produced by the reaction is ~63%, and the calorific value of straw gas is ~1620Kcal / Nm 3 (air vaporization calorific value 3 ).

[0044] The straw gas is se...

Embodiment 2

[0047] Biomass bamboo chips are sorted and the biomass with a moisture content of 12-30% is sent to the fluidized bed carbonization device. The bamboo chips and organic matter with a moisture content of 30-56% mainly include 20% pig manure, 12% rabbit manure, and 35% human manure , 6% edible fungus residue, 15% distiller's grains, and 2% furfural residue are mixed together, crushed and added with microorganisms, and sent to a fermentation device for fermentation after pretreatment.

[0048] The working temperature in the fluidized bed carbonization device is controlled at 610°C to carbonize the bamboo chips, and the fermentation gas CH is passed into the fluidized bed carbonization device. 4 Content ~ 35%, H 2 The content is ~1%, and at the same time, the ratio (volume ratio) of low-parameter steam to fermentation gas is 1:15. The carbon content of bamboo chip charcoal produced by the reaction is ~81%, and the calorific value of bamboo chip gas is ~1520Kcal / Nm 3 (air vaporiz...

Embodiment 3

[0052] The biomass sawdust is sorted and the biomass with a moisture content of 21-30% is sent to the fluidized bed carbonization device. The wood chips and organic matter with a moisture content of 30-37% mainly include 3% sheep manure, 7% horse manure, 27% swill, 10% Moldy feed, 7% medicine dregs, and 8% soy sauce dregs are mixed together, crushed and added with microorganisms, and sent to a fermentation device for fermentation after pretreatment.

[0053] The working temperature in the fluidized bed carbonization device is controlled at 700°C to carbonize the sawdust, and the fermentation gas CH is passed into the fluidized bed carbonization device. 4 Content ~ 1%, H 2 The content is ~0.6%, and the ratio (volume ratio) of low-parameter steam to fermentation gas is 1:10. The carbon content of sawdust charcoal produced by the reaction is ~83%, and the calorific value of wood chip gas is ~1220Kcal / Nm 3 (air vaporization calorific value 3 ).

[0054] Sawdust gas is sent to t...

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Abstract

The invention provides a cyclic utilization device and method for preparing a carbon-based organic fertilizer by carbonizing fluidized bed biomass. The device comprises a winnowing device, wherein thewinnowing device is separately connected to a fluidized bed carbonizing device, an organic matter pre-treatment device and a fermenting device, and the back of the fluidized bed carbonizing device isconnected to a blending device and a fermenting device; one end of the fluidized bed carbonizing device is connected to a boiler, the boiler is connected to a turbine generation unit, and a desulfurizing device is provided with an outlet connected to the inlet of the blending device; the outlet of the organic matter pre-treatment device is connected to the inlet of the fermenting device, the outlet of the fermenting device is connected to the inlet of the blending device, and the bottom of the fermenting device is connected to a denitration device; one side of the blending device is connectedto a forming device; and the outlet of the forming device is connected to a drying device, and the tail part of the drying device is connected to a packaging device. The device can prepare the carbon-based organic fertilizer by only feeding biomass and organic matters, and the electric power and heating powder of the system are self-sufficient, so that the device is suitable for distributed development.

Description

technical field [0001] The invention relates to the technical field of biomass utilization, in particular to a recycling device and method for preparing carbon-based organic fertilizer by carbonizing fluidized bed biomass. Background technique [0002] China is a big agricultural country, feeding 22% of the world's population with 7% of the world's land, and one of the most important points is the application of chemical fertilizers. Chemical fertilizers can not only improve soil fertility, but also an important measure to increase crop yield per unit area. Fertilizer is the most basic and most important material input in agricultural production. At the same time, data show that the utilization rate of chemical fertilizers in China is not high, for example, the utilization rate of nitrogen fertilizer is only 35%. According to data from the Food and Agriculture Organization of the United Nations, from 1980 to 2002, China's chemical fertilizer consumption increased by 61%, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05F17/00C05F17/02C01C1/24C10B53/02F22B1/22F01D15/10C05G3/80
CPCF01D15/10F22B1/22C10B53/02C01C1/24C05C3/00C05F17/00C05F17/90C05G3/80C05D9/00C05F3/00C05F5/002C05F7/00C05F11/00C05F11/08C05F3/04C05F5/00C05F5/006C05F5/008C05F9/00Y02E50/10Y02W30/40
Inventor 张守军陈温福蒋剑春赵成武孟军鲁万宝孙永明李益瑞冯干吴银龙程东海张守峰白轩胡鹏孙云娟宋俊阳张政王亚军
Owner HEFEI DEBO BIOENERGY SCI & TECH
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