Integrated solar sludge drying system

Abstract

The invention relates to the technical field of drying sludge, and particularly relates to an integrated solar sludge drying system functioning by combining a solar thermal collector with a solar house. The drying system comprises a multifunctional solar house, a heat-conducting oil tank, a solar thermal collector, a fan, a solar air collector, a sludge feeder, a shaftless spiral dryer and a sludge storage pool. The floor area of the integrated solar sludge drying system is further reduced compared with a solar sludge drying device with the same sludge treatment capacity, and the sludge drying time of the integrated solar sludge drying system is also shortened compared with the traditional sludge drying by utilizing only the solar house; the system is capable of realizing short-period low-power consumption production of sludge drying, and is easy to implement; and the system has obvious social benefit and circulating economic benefit, thus being capable of being widely applied to the sludge drying treatment of sewage treatment plants.

Description

technical field [0001] The invention relates to the technical field of sludge drying, in particular to an integrated solar sludge drying system utilizing the joint action of a solar heat collector and a solar house. Background technique [0002] With the continuous development of environmental protection, a large number of new sewage treatment plants have been built all over the country, but the sewage treatment plants will produce a large amount of by-products - sludge, if not handled properly, it will cause secondary environmental pollution; according to statistics, by the end of 2010, my country's required The total amount of sludge produced will reach about 30 million tons, and the problem of harmless and resourceful treatment of sludge is becoming more and more prominent. [0003] The moisture content of dehydrated sludge in sewage treatment plants is still as high as 75%~80%, which is huge, and there is no unified model for sludge disposal in various places. Most citi...

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Problems solved by technology

[0004] A search of existing invention patents found that there are also devices that use solar energy to dry sludge, such as activated sludge solar drying devices (patent number: 200710181080.5), which use solar greenhouses for stirring and composting, but this method Therefore, it is of great research value to explore a low-energy integrated solar sludge drying system with large drying capacity and short drying cycle.

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