A sludge drying and incineration system relying on thermal power plants

A technology for sludge drying and thermal power plants, applied in dewatering/drying/concentrating sludge treatment, incinerators, combustion methods, etc., which can solve problems such as high cost, inability to meet the moisture content requirements of sludge incineration, and achieve low initial investment. , The effect of saving exhaust steam treatment investment and cost
CN104628237BActive Publication Date: 2017-02-22ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
Publication Date
2017-02-22

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Abstract

The invention discloses a sludge drying incineration system based on a thermal power plant. The system comprises a sludge drying system and a sludge mixing incineration system, wherein the sludge drying system comprises a heat supply system, a feeding system, a paddle type sludge dryer, a dead steam treating system, a dead steam recycling system and a dried sludge collecting and handling system; and the sludge mixing incineration system comprises a dried sludge mixing system and a dried sludge incineration system. According to the sludge drying incineration system based on the thermal power plant, sludge is dried through high-temperature steam produced by a boiler of the thermal power plant; the dried sludge is incinerated and the resulting heat is used for producing steam; the whole process is free of pollutant; therefore, an effective way is actually developed for recycling the wastes and treating wastes with the wastes, the social and environmental benefits are obvious, and a feasible way is provided for harmless handling, reducing handling and recycling of sludge.
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Description

technical field

[0001] The invention relates to a sludge treatment system in the field of environmental protection, in particular to a sludge drying and incineration system utilizing steam from a thermal power plant and a boiler of the power plant. Background technique

[0002] In recent years, with the development of my country's social economy and urbanization, urban sewage has been increasing, and how to deal with sludge as a by-product of sewage treatment has become a major problem facing society today. According to statistics, by 2010, there were 2,840 urban sewage treatment plants across the country, and the statistics in 2013 show that there are currently 3,600. The annual sewage treatment capacity of these sewage treatment plants can reach 34.4 billion cubic meters. And every 10,000 tons of sewage will produce 5 tons of sludge, that is, 34.4 billion cubic meters of sewage can produce about 20 million tons of sludge, but as of 2010, the harmless treatment rate of slu...

Claims

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