Sludge desiccation system

The invention mainly aims to provide a sludge desiccation system. A technical scheme is as below: a sludge desiccation system comprises a drying chamber communicating with a hot-air pipeline and an auxiliary heat source pipeline; the drying chamber comprises a wet sludge inlet, a dry sludge outlet, a moisture exhaust and a sludge conveyor belt inside the drying chamber; the hot-air pipeline is communicating with a solar heat collector, which is communicating with a blower fan through an air channel; and the auxiliary heat source pipeline is provided with a temperature control valve. The desiccation system not only utilizes solar energy and heat tail gas or steam discharged by a factory effectively to enhance desiccation efficiency and desiccation effect, but also enhances operating stability of the desiccation system.