Low-cost high-quality biomass briquette fuel and production method thereof

Abstract

The invention discloses a low-cost high-quality biomass briquette fuel. According to the invention, the pretreated corn straws are taken as a raw material for anaerobic fermentation for 10-20 days, so that mechanical endurance of the briquette fuel is increased, finally, biogas residue is dried and crushed, and then is composited with an anti-slagging agent and an oxidant and other active ingredients for compression moulding under condition of 6MPa. The preparation method has the advantages of fast moulding and less required pressure, and is helpful for reducing equipment wearing. In the invention, magnesium carbonate is taken as the anti-slagging agent, during a combustion process, the Mg element and elements such as Si, K, and Na which are inherent in the corn straws and are capable of slagging are subjected to a reaction, a novel compound K2Mg(SO4)2 is generated and provides anti-slagging performance to the briquette fuel, and the produced briquette fuel has the advantages of low cost, and fast combustion speed and good quality, has good commercial prospects, and is the ideal method for producing the biomass briquette fuel.

Description

technical field [0001] The invention relates to the technical field of biomass fuels, in particular to a low-cost and high-quality biomass briquette fuel and a preparation method thereof. Background technique [0002] Biomass energy has become the fourth largest energy source in the world because of its renewable, abundant resources, and environmental friendliness. It is also the only clean renewable energy that can be transported and stored. It mainly uses modern biomass energy technology to convert agricultural waste and logging residues , livestock and poultry manure, municipal solid waste, domestic sewage and industrial organic wastewater and other raw materials are processed into end products such as biomass pellet fuel, biodiesel and biofuel ethanol. There is almost no SO2 emission in the later utilization process of biomass fuel, which reduces the harm of acid rain and greenhouse effect caused by the flue gas generated in the utilization process, and makes biomass ene...

AI Technical Summary

Problems solved by technology

The test results show that after anaerobic fermentation of straw, the energy retained in the biogas residue is greater than the energy transferred to the biogas, and the energy value of the straw biogas residue is high. However, the ash content of the straw after 20 days of fermentation is three times that of the unfermented straw, which may be It will enhance its slagging, and the calorific value of the briquette fuel prepared in this paper is only about 5.82% higher than that of the raw material, which cannot meet the needs of blast furnaces or places with high calorific value, and when used in small cooking stoves, there are problems of misfire and ignition. Long time, smoke pollution and other problems, low combustion efficiency, need to be modified to obtain high calorific value, anti-slagging new biomass briquette fuel