Biomass water-coal-slurry slurring and combustion method and integrated system

Abstract

The invention relates to a biomass water-coal-slurry slurring and combustion method and an integrated system. The integrated system is provided with a solid waste and industrial waste water processing module, a biomass water-coal-slurry slurring module and a water-coal-slurry boiler and integrated heating system and is characterized in that firstly, solid combustible waste and waste water are putinto the solid waste and industrial waste water processing module for being processed; and then film concentrate which takes biochemical sludge and organic concentrated waste water as main and is processed by film concentration and 30-40% of film concentrate of washing steam coal processed according to 60-70% of film concentration processing of the washing steam coal are matched and put in the biomass water-coal-slurry slurring module for blending to prepare biomass water-coal-slurry; and the prepared biomass water-coal-slurry is put in the water-coal-slurry boiler and integrated heating system for grate firing suspension combined type or circulating fluid-bed suspension combined type combustion; and during the combustion, crushed and dried solid combustible waste is added in batch type mode.

Description

Technical field [0001] The patent of the invention relates to a kind of deep processing using coal as fuel, in particular to a method and system for making biomass coal-water slurry by using coal and high-concentration organic wastewater to make a slurry. The system method can simultaneously burn coal-water slurry And sludge to realize energy conversion of waste water and sludge. Background technique [0002] Coal water slurry is a new type of clean fuel that replaced oil with coal, which developed rapidly during the oil crisis in the 1970s. It is made of more than 60% high-quality coal, about 30% water and a small amount of additives. It is processed through a certain technological process. It not only maintains the original characteristics of coal, but also has the fluidity and stability of petroleum. Low pollution, convenient transportation and storage, and the atomization combustion efficiency can reach 98%. It can be used in industrial boilers, power station boilers and ind...

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Problems solved by technology

[0009] It can be seen that due to the characteristics of coal water slurry, more and more people are engaged in the research and application of coal water slurry, but from the above papers and patents, it can be seen that the existing coal water slurry and biomass coal water slurry are made from The feasibility of preparing biomass coal-water slurry and combustion has been discussed in terms of pulping, combustion and pollution discharge, but none of them involve biomass coal-water slurry pulping, combustion integrated system and industrial scale application

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