Method for preparing rock wool by gasifying and melting industrial activated sludge for power generation

Abstract

The invention discloses a method for preparing rock wool by gasifying and melting industrial activated sludge for power generation. A whole set of system method is formed by relying on drying, granulation, gasification, power generation and rock wool preparation. On the premise of no odor and no pollution, reduction, harmlessness and recycling of large-scale industrial activated sludge are realized, organic matters are pyrolyzed into combustible gases such as carbon monoxide, hydrogen and alkanes, the combustible gases enter a fuel gas power generator set, generated electric power is used forrock wool production and can be more conveniently and cleanly utilized, and resource recycling economy is achieved; sludge is subjected to heat gasification melting high-temperature treatment, the size is greatly reduced, gasified organic matter generates power in a gas form, power generation is used for melting residual inorganic matter to prepare rock wool, the density of the inorganic matter ishigher, the mass is heavier, the strength is greatly improved, and the method can be used for rock wool production.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of industrial activated sludge, in particular to a method for producing rock wool by gasifying and melting industrial activated sludge to generate electricity. Background technique [0002] With the rapid development of the economy, the discharge of industrial sewage has increased unprecedentedly. Under this background, the development of sewage treatment plants is in the ascendant. At present, my country's annual sewage treatment capacity has more than doubled compared with that during the Tenth Five-Year Period. During the operation of the sewage treatment process, a part of the sludge generated by the industrial sewage is refluxed as the reactant of the biological reaction, while the remaining sludge is discharged out of the system. The amount of these surplus sludge is astonishing. It has high moisture content, bulky volume, foul smell, complex composition, and contains a la...

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Problems solved by technology

It can be seen that landfill is still the main method of sludge treatment in my country. In addition, my country's sewage treatment enterprises have insufficient disposal capacity and backward disposal methods. A large amount of sludge has not been treated in a standardized manner, which directly causes "secondary pollution" and has a negative impact on the ecological environment. serious threat

[0005] The existing industrial sludge treatment technology mainly uses incineration and landfill as the main method. After the sludge is incinerated by the incinerator, 20% of residues will be produced. The residues contain polluting heavy metals, which will cause secondary pollution to the environment and occupy the park area. Land resources cannot be utilized as resources

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