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Method for preparing biomass fuel with fresh cow dung as main raw material

A biomass fuel and main raw material technology, applied in biofuel, waste fuel, fuel, etc., can solve problems such as environmental pollution, high moisture content of cow dung and difficult fermentation, etc., to improve combustion efficiency, facilitate fuel molding, and carbon-nitrogen ratio Improved effect

Active Publication Date: 2019-01-25
INST OF AGRI ENG TECH FUJIAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can not only greatly consume cow dung, solve the environmental pollution problem of cow dung, but also solve the problem that cow dung is not easy to ferment due to high moisture content, and also provides a direction for the resource utilization of waste mushroom sticks and tea stems

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0031] A method for preparing biomass fuel with fresh cow dung as the main raw material, the specific steps are:

[0032] 1) Raw material pretreatment: crush the discarded mushroom sticks, dry them naturally to make the moisture content below 10wt%, and prepare the mushroom sticks; heat the discarded shells at a heating rate of 15°C / min Calcining at 900°C for 5 hours to obtain calcined shell powder;

[0033] 2) Fermentation: Mix 80wt% of fresh cow dung, 15wt% of mushroom sticks and 5wt% of calcined shell powder to make a mixture; The moisture content of the material is reduced to 25wt%; the nitrogen fixation-desulfurization composite microorganism is composed of Pseudomonas putida ( Pesudomonas putida ), Pseudomonas flavinogenes ( Cellulomonas flavigena ), Aspergillus oryzae ( Aspergillus oryzae ), Bacillus licheniformis ( Bacillus licheniformis ) and Streptomyces griseus ( Streptomyces griseus ) is compounded according to the mass ratio of 3:5:2:1:6, and the amount...

Embodiment 2

[0041] A method for preparing biomass fuel with fresh cow dung as the main raw material, the specific steps are:

[0042] 1) Raw material pretreatment: crush the discarded mushroom sticks, dry them naturally to make the moisture content below 10wt%, and prepare the mushroom sticks; heat the discarded shells at a heating rate of 30°C / min Calcining at 1100°C for 3 hours to obtain calcined shell powder;

[0043] 2) Fermentation: Mix 80wt% of fresh cow dung, 17wt% of mushroom sticks and 3wt% of calcined shell powder to make a mixture; The moisture content of the material is reduced to 20wt%; the nitrogen fixation-desulfurization composite microorganism is composed of Pseudomonas putida ( Pesudomonas putida ), Pseudomonas flavinogenes ( Cellulomonas flavigena ), Aspergillus oryzae ( Aspergillus oryzae ), Bacillus licheniformis ( Bacillus licheniformis ) and Streptomyces griseus ( Streptomyces griseus ) is compounded according to the mass ratio of 3:5:2:1:6, and the amoun...

Embodiment 3

[0051] A method for preparing biomass fuel with fresh cow dung as the main raw material, the specific steps are:

[0052] 1) Raw material pretreatment: crush the discarded mushroom sticks, dry them naturally to make the moisture content below 10wt%, and prepare mushroom sticks; heat the discarded shells at a heating rate of 20°C / min Calcining at 1000°C for 4 hours to obtain calcined shell powder;

[0053] 2) Fermentation: Mix 80wt% of fresh cow dung, 16wt% of mushroom sticks and 4wt% of calcined shell powder to make a mixture; The moisture content of the material is reduced to 25wt%; the nitrogen fixation-desulfurization composite microorganism is composed of Pseudomonas putida ( Pesudomonas putida ), Pseudomonas flavinogenes ( Cellulomonas flavigena ), Aspergillus oryzae ( Aspergillus oryzae ), Bacillus licheniformis ( Bacillus licheniformis ) and Streptomyces griseus ( Streptomyces griseus ) is compounded according to the mass ratio of 3:5:2:1:6, and the amount of...

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Abstract

The invention belongs to the technical field of environmental protection, and particularly relates to a method for preparing a biomass fuel by taking fresh cow dung as a main raw material. The method particularly includes the steps: 1) raw material pretreatment; 2) fermentation: mixing the fresh cow dung, mushroom rods and calcined shell powder, inoculating nitrogen fixation-desulfurization compound microorganisms and performing composting fermentation; 3) naturally airing fermented materials; 4) adding tea stalks and performing extruding granulation. The fresh cow dung serves as the main raw material, the waste mushroom rods, the calcined shell powder and the tea stalks serve as auxiliary raw materials, the nitrogen fixation-desulfurization compound microorganisms are added, and the biomass granule fuel with a low ignition point, a large combustion heat value and a high combustion ratio is prepared by making full use of enhanced material flammability and comprehensive combustion characteristics of the compound microorganisms and the water-absorbing capacity and the heat production capacity of the calcined shell powder. The method can greatly reduce the cow dung, solve the problem of environmental pollution of the cow dung and provide direction for resource utilization of the waste mushroom rods, the shell powder and the tea stalks.

Description

technical field [0001] The invention belongs to the technical field of new energy fuel and environmental protection, and in particular relates to a method for preparing biomass fuel by using fresh cow dung as a main raw material. Background technique [0002] The large-scale development of my country's aquaculture industry has made a significant contribution to the enrichment of the "vegetable basket" project. At the same time, a large number of aquaculture pollutants, especially solid fecal pollutants, have become a key technical bottleneck restricting the sustainable development of the aquaculture industry, affecting healthy aquaculture. and potential risks to the environment. The traditional treatment method is through anaerobic technology and supporting related post-treatment technology, most of which are mainly "resource utilization in mountains, forests or fields". The effect and processing stability are poor and management is inconvenient. In recent years, the treatm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/42C10L5/46
CPCY02E50/10Y02E50/30
Inventor 陈彪黄婧肖艳春魏云华张燕青林香信
Owner INST OF AGRI ENG TECH FUJIAN ACAD OF AGRI SCI
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