Treatment method for municipal sludge

Abstract

The invention discloses treatment equipment for municipal sludge. The treatment equipment comprises a machine body and a discharging channel arranged in the machine body, wherein a first driving cavity positioned at the left side of the discharging channel is formed in the machine body; a feeding cavity which rightward extends and is provided with a left opening is formed in the right side of thedischarging channel; a first rotating shaft extending towards the left side and the right side is rotationally arranged in the discharging channel; an extrusion disk which can slide leftwards and rightwards is arranged on the first rotating shaft; a first spring circling the outer surface of the first rotating shaft is arranged between the left end face of the end face of the extrusion disk and the left end wall of the discharging channel; the first rotating shaft rightward extends into the feeding cavity. The equipment disclosed by the invention is simple in structure and is convenient to operate; water in sludge is removed by mechanical extrusion; then residual water in the sludge is removed by using the physical characteristic that lime generates heat when meeting with water; higher dehydration efficiency is realized by secondary dehydration; with chemical action of the lime, acidity and alkalinity of the sludge are changed, secondary utilization or landfill of the treated sludge ismore benefited, and practicality of the device is improved.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a treatment method for municipal sludge. Background technique [0002] With the acceleration of urbanization and the gradual increase of urban residents, a large amount of domestic sewage sludge will be produced in this process. In the process of urban sludge treatment, there has always been a relatively difficult technical problem, which is the dehydration rate of traditional sludge dewatering equipment. Low, and the degree of automation is not high, resulting in the treated sludge can not meet the secondary utilization or landfill standards, this device effectively solves this problem. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a treatment method for municipal sludge, which can solve the above-mentioned problems in the prior art. [0004] The present invention is achieved through the following technical...

AI Technical Summary

Problems solved by technology

[0002] With the acceleration of urbanization and the gradual increase of urban residents, a large amount of domestic sewage sludge will be produced in this process. In the process of urban sludge treatment, there has always been a relatively difficult technical problem, which is the dehydration rate of traditional sludge dewatering equipment. Low, and the degree of automation is not high, resulting in the treated sludge can not meet the secondary utilization or landfill standards, this device effectively solves this problem

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