Manufacturing method of sludge-biomass fuel rod

Through mechanical deep dehydration and crushing treatment of sludge and mixed with biomass particles, the problems of high energy consumption, equipment blockage and odor pollution in sludge treatment are solved, and the efficient resource utilization of sludge is achieved.

CN120464441APending Publication Date: 2025-08-12SOUTHEAST UNIV
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Patent Information

Application Number
CN202510695681.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

The prior art has problems in sludge treatment with high energy consumption, high risk of equipment blockage, serious odor pollution and difficult to effectively reduce the moisture content of the sludge, resulting in an increase in sludge incineration costs and increased environmental risks.

Method used

After mechanical deep dehydration, the sludge is crushed to a particle size of ≤3mm, and mixed with biomass particles with a particle size of 0.4mm~2mm in a certain proportion. The sludge-biomass fuel rod is prepared by extrusion molding to avoid thermal drying treatment.

Benefits of technology

It has achieved low energy consumption and low cost reduction of sludge moisture content, improved combustion efficiency, avoided equipment blockage and odor generation, and realized the reduction, stabilization, harmlessness and resource utilization of sludge.

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Abstract

The invention relates to a manufacturing method of a sludge-biomass fuel rod. The manufacturing method comprises the following steps: S1, sludge pretreatment: dehydrating sludge; s2, sludge crushing treatment: performing crushing treatment on the dewatered sludge to obtain sludge particles with the particle size of less than or equal to 3mm; s3, sludge and biomass are mixed, wherein the sludge particles obtained in the step S2 and biomass particles are stirred and mixed according to the mass ratio of (10-90): (90-10), and a sludge-biomass forming raw material is obtained; s4, sludge-biomass raw material extrusion forming: performing extrusion forming on the sludge-biomass forming raw material obtained in the step S3 to obtain the sludge-biomass fuel rod. Compared with the prior art, the prepared sludge-biomass fuel rod has better combustion characteristics and stability. The sludge can play a bonding role in the fuel rod forming process, a compact body structure is conveniently formed, and forming is convenient; and the biomass is beneficial to improving the combustion characteristic of the fuel rod.
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