Sludge recycling harmless treatment system and treatment method

Abstract

The invention relates to a sludge recycling harmless treatment system and method, wherein the sludge recycling harmless treatment system comprises a base, a dehydration device and an auxiliary device; the dehydration device is arranged on the upper surface of the base, and the auxiliary device is arranged in the dehydration device. The invention can solve the current problems that: sludge has certain viscosity and fluidity, so that the sludge can be adhered to the surface of dewatering equipment in the process of extruding the sludge for dewatering, the sludge is troublesome to remove, time-consuming and labor-consuming, and the sludge can flow to a place without pressure, so that the dewatering efficiency is reduced, and the rapid dehydration treatment of the sludge is difficult to realize; and when heating equipment is used for heating the sludge, due to the fluidity effect of the sludge, in the heating and dewatering process of the sludge, the sludge on the surface is dewatered before the sludge on the inner part is dewatered, so that after the surface of the sludge is solidified, the heating and dewatering of the sludge on the inner part can be influenced, and the dewatering effect of the sludge is poor.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to a sludge reuse and harmless treatment system and treatment method. Background technique [0002] The sludge produced by urban life contains impurities such as heavy metals, plastics, organic matter, and bacterial organisms. The random discharge of sludge not only pollutes the air, but also easily pollutes groundwater. Sludge needs to be treated before it can be used. Because sludge has a certain fluidity, solidification and dehydration are usually used for sludge treatment. At present, for sludge dehydration, the water in the sludge is squeezed out by extrusion, and the sludge is heated to evaporate the water in the sludge to achieve the purpose of sludge dehydration. [0003] At present, the following problems exist in the dehydration treatment of sludge: [0004] 1. In the existing dewatering of sludge, due to the certain viscosity and fluidity of the sludge, the sludge will ...

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Problems solved by technology

[0004] 1. In the existing dewatering of sludge, due to the certain viscosity and fluidity of the sludge, the sludge will adhere to the surface of the dehydration equipment during the dehydration process of the squeezed sludge, and it is troublesome to remove , time-consuming and labor-intensive, and the sludge will flow to places without pressure, resulting in a decrease in dehydration efficiency, making it difficult to achieve rapid dehydration of sludge;

[0005] 2. In the existing dehydration of sludge, when using heating equipment to heat the sludge, due to the fluidity of the sludge, the sludge on the surface will be prior to the sludge on the inside during the process of heating and dehydrating the sludge. Complete the dehydration operation, so that after the sludge surface is solidified, it will affect the internal heat dehydration, resulting in poor dehydration effect of the sludge

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