Sludge reusing device capable of pre-dewatering

Abstract

The invention discloses a sludge reusing device capable of pre-dewatering. The device comprises a dewatering tank and a drying tank; the dewatering tank and the drying tank convey a material through acommunicating tube, a pushing shaft is rotatably connected in the dewatering tank, the left end of the pushing shaft is in transmission connection with a pushing motor, the shaft body of the pushingshaft is fixedly provided with a spiral blade along the entire length, a water filter shield is arranged in the periphery of the spiral blade, the inner wall of the water filter shield is in contact with the outermost edge of the spiral blade, the top of the left side of the dewatering tank is provided with a feeding hopper, the bottom of the left side of the dewatering tank is provided with a water discharging tube, the end of the feeding hopper extends into the water filter shield, and the water discharging tube is provided with a water discharging valve; and the left outer wall of the drying tank is provided with a hot air blower, the output end of the hot air blower is connected with a hot air duct, and the other end of the hot air duct goes deep into the drying tank. The device can pre-dewater sludge, so the sludge drying efficiency is improved, and the energy consumption is reduced; and the device can ensure the uniform heating of the sludge in the drying process, so the drying effect is ensured.

Description

technical field [0001] The invention relates to a large field, in particular to a sludge reuse device capable of pre-dehydration. Background technique [0002] Silt is deposited in still water or slow flowing water environment, formed by physical, chemical and biochemical actions, unconsolidated soft fine-grained or very fine-grained soil, which belongs to modern recent sediments. Silt can be silty or silty according to its particle size. Clay, fine sand or very fine sand is very rare, long-term accumulation of silt in the river will make the river bed rise, water storage capacity will decrease, resulting in reduced agricultural water consumption, regular silt cleaning is a necessary work . [0003] The silt not only contains various sundries, but also contains quite a lot of nutrients, which can be used as farmland fertilizer. The current silt is mostly stacked in the open air, or directly discharged into the farmland without treatment, which not only wastes resources, but...

AI Technical Summary

Problems solved by technology

[0003] The silt not only contains various sundries, but also contains quite a lot of nutrients, which can be used as farmland fertilizer. The current silt is mostly stacked in the open air, or directly discharged into the farmland without treatment, which not only wastes resources, but also Destroying the environment, silt is a kind of natural fertilizer. The current silt treatment method is only to salvage the silt in the river, and then accumulate it in the open air. These treatment methods do not make full use of the value of silt

[0004] There are also some equipment that can dry the sludge and then complete recycling, but most of these devices do not have the pre-dehydration function, resulting in low drying efficiency and high energy consumption

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