Sludge drying system

Abstract

The invention discloses a sludge drying system, which comprises a sealed sludge storage cabin and a drying device. Sludge in the sealed sludge storage cabin is fed into the drying device for drying the sludge through a material feeding mode. The sealed sludge storage cabin comprises a sludge feeding device, a grab bucket crane, a grab bucket crane track, a sludge tank barrier, a feeding port and a control chamber. The grab bucket crane grabs the sludge in the sealed sludge storage cabin and sends the sludge to a feeding hopper of the sludge feeding device which transmits the sludge to the drying device. The drying device comprises a roof, a wall body, a material table and a sludge paver. The sludge paver paves and throws the sludge, and then the sludge is performed with warming for dehumidification and drying by waste heat from a flue and solar energy, and the dried sludge is conveyed outside the drying chamber through a material conveying machine. By means of the sludge drying system, the sludge is placed in a sealed environment, polluted gas generated by the sludge is prevented from being directly discharged into the air, waste heat of a brick kiln and the solar energy are used for drying the sludge, and physical heat on the tail portions of fired bricks in a tunnel brick kiln can be used fully, so that a large amount of energy can be saved.

Description

technical field [0001] The invention belongs to the harmless treatment and resource utilization technology of urban sludge, in particular to a sludge drying system. Background technique [0002] Municipal sludge refers to the solid waste generated during the treatment of urban domestic sewage and industrial wastewater, and is a regular product of urban sewage treatment plants. This sludge has a high water content, is perishable, has a strong odor, and contains toxic substances such as dioxins, bacteria, parasite eggs, and heavy metals. Therefore, it is necessary to carry out harmless treatment and reuse of sludge, and the drying of sludge is a necessary step in sludge treatment. At present, the drying methods mainly include: traditional thermal sludge drying and solar sludge drying. [0003] Traditional thermal sludge drying refers to the use of sludge thermal drying integrated equipment to dry sludge. According to the contact mode of heat medium and sludge, drying equipm...

AI Technical Summary

Problems solved by technology

For example, the energy consumption required for drying is relatively large, the moisture content of the dried sludge is relatively high, the waste gas treatment is not thorough enough, there is still a large amount of toxic gas, and the dried sludge has not been further used

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