Improved sludge treatment system

Abstract

The invention relates to an improved sludge treatment system which comprises a transmission device, a water removal structure and a drying device. The drying device comprises a furnace body, a feed device for adding materials into the furnace body, a material collecting device for collecting the dried materials in the furnace body, an air supply device leading external hot gas into the furnace body through a first gas inlet, and a stirring device for stirring and smashing the materials. The stirring device comprises a second rotary shaft which is arranged in a cavity of the furnace body in a penetrating mode. The second rotary shaft is provided with a ventilating cavity. A plurality of gas spraying openings are formed in the ventilating cavity. The gas spraying direction of the gas spraying openings, the stirring direction of a stirring shaft and the stirring direction of blades are neither overlapped nor parallel. When the materials are dried, hot gas is led into the cavity of the furnace body through the first gas inlet, the second rotating shaft rotates to drive a stirring assembly on the second rotating shaft so that the materials can be continuously stirred in the radial and axial directions of the second rotating shaft and can roll in the axial and radial directions of the second rotating shaft in the furnace body.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to an improved sludge treatment system. Background technique [0002] Sludge is the product of the sewage treatment process, which contains a large amount of organic matter, heavy metals and molds, etc. If no follow-up treatment is added, it will cause serious pollution to the environment. Therefore, it is often necessary to concentrate and dehydrate the sludge, but after this treatment The moisture content of the final sludge is usually above 70%, and the sludge needs to be further dried. [0003] In the prior art, the drying system used for sludge drying is mostly structured as the drying system disclosed in the Chinese patent document CN201058838Y, including a furnace body, a feeder connected to the feed port of the furnace body, and an air outlet of the furnace body. Connected spray tower. Among them, the furnace body includes a transmission shaft arranged in the furn...

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defects of low drying efficiency, poor drying effect and complex structure of the drying system in the treatment of solid-liquid mixture (such as sludge) in the prior art, thereby providing a method that can improve drying efficiency. , Sludge treatment system with simple structure and improved drying effect

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