A comprehensive treatment system and method for sludge

Abstract

A comprehensive treatment system and method for sludge belong to the technical field of sludge treatment. The system includes a sludge crushing and conveying spray device, a plant liquid conveying spray device, a fluidized bed sand particle removal and deodorization device, a fluidized bed drying and cooling device and a tail gas treatment device. The sludge crushing and conveying spray device makes the sludge containing sand particles form droplets of 150-200 μm, and sprays the mixed droplets evenly into the sand particle removal and deodorization device of the fluidized bed; by adjusting the size of the fluidization wind speed, the The purpose of removing sand particles below 200μm from wet sludge. The invention solves the problem that the sludge drying and incineration system and equipment are worn out due to the high sand content of the sludge, and reduces the operation and maintenance costs of the enterprise; at the same time, it solves the problem of odor all over the site of the sludge drying and incineration project , reduce the capital investment of enterprises in odor introduction and deodorization equipment, and realize the continuous drying of sludge, which has a good engineering application prospect.

Description

technical field [0001] The invention relates to a comprehensive sludge treatment system and method, and belongs to the technical field of sludge sand removal, deodorization and drying. Background technique [0002] Affected by factors such as large-scale construction and imperfect pipeline networks, the content of sand particles in urban sewage sludge in my country is generally high, and the distribution structure of sand particles is also significantly different from that of foreign countries. Although a large number of grit chamber systems have been introduced in recent years, the effect Not optimistic, most sewage treatment plants still have the problem of sand particles forming deposition in the subsequent treatment system. At present, the grit chamber system has a good removal effect on sand particles with a particle size greater than 200 μm, but the removal effect is not ideal for sand particles with a particle size of 100-200 μm, and the removal efficiency is very low ...

AI Technical Summary

Problems solved by technology

Even if these measures are taken, the sites with sludge drying and incineration projects are still full of odor, which has become a bottleneck problem restricting the application prospects of sludge drying and incineration projects, which urgently needs to be solved

Moreover, a large number of odor-absorbing and deodorizing equipment purchased and arranged also increased the operating cost of the enterprise and seriously affected the economic benefits of the enterprise.

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