Coal-fired boiler synergistic solid waste resource utilization direct mixing system and working method thereof

Abstract

The invention discloses a coal-fired boiler collaborative solid waste resource utilization direct mixing system and a working method thereof. The coal-fired boiler collaborative solid waste resource utilization direct mixing system comprises a solid waste conveying system, a coal mill feeding system and a coal conveying belt feeding system, the solid waste conveying system comprises an underground receiving hopper, an overground receiving hopper and a shaftless screw conveyor for conveying solid waste from the underground receiving hopper to the overground receiving hopper, a high-position buffer bin is arranged over the overground receiving hopper, the bottom of the high-position buffer bin is communicated with the overground receiving hopper through a vertical pipeline, and the top of the high-position buffer bin is communicated with the bottom of the overground receiving hopper through a second backflow pipeline. Two feeding systems are arranged, one or both of two modes are selected, the feeding modes are flexible and high in practicability, meanwhile, the size of the underground receiving hopper is greatly reduced, consideration in the aspects of drainage, geological conditions and the like is reduced, a special evaluation process is not needed, the construction period is shortened, pit surface materials and corrosion-resistant and water-resistant materials are saved, and the construction cost is reduced. And the construction cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of solid waste collaborative processing, in particular to a coal-fired boiler collaborative solid waste resource utilization direct mixing system and a working method thereof. Background technique [0002] Sewage treatment plants will produce a certain amount of semi-solid or solid substances in the process of sewage treatment, which is commonly known as "sludge". Sludge has low relative density, irregular shape, high specific surface area and porosity, and is generally neutral or weakly acidic and weakly alkaline. The content of organic matter is high, it has calorific value and high moisture content, poor dehydration and odor. In addition, it also contains other substances, such as harmful microorganisms such as pathogenic bacteria and viruses, and refractory substances such as polychlorinated biphenyls and dioxins. The treatment and disposal of sludge should follow the principles of reduction, stabilization, harm...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a coal-fired boiler collaborative solid waste resource utilization direct mixing system and its working method, to solve the technical problem of high cost and maintenance costs caused by the need to build a large-scale pit; and to solve the prior art direct mixing system The problem of poor flexibility and low safety at the dosing point

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