A kind of sludge continuous crushing pretreatment equipment

Abstract

The present invention provides a sludge continuous crushing pretreatment equipment, which includes a conveying mechanism composed of a first conveying assembly and a second conveying assembly arranged in a staggered manner. The crushing mechanism and the screening mechanism arranged above the first conveying assembly parallel to the first conveying assembly, the screening mechanism includes a rotary assembly and a number of electromagnetic screening assemblies equidistantly arranged on the rotary assembly, by using the crushing mechanism to The dehydrated sludge is crushed and decomposed and laid flat on the first conveying component, and then the flattened sludge is magnetically screened by the electromagnetic screening component, and the magnetic metal particles in the sludge are screened out from the sludge. The technical problem of magnetic metal screening when sludge is used as cement raw material is solved, and the rapid screening of magnetic metal in sludge is realized.

Description

technical field [0001] The invention relates to the technical field of sludge reuse treatment, in particular to a sludge continuous crushing pretreatment equipment. Background technique [0002] The construction of sewage treatment plants in large and medium-sized cities in China was earlier. Since there was no mature and feasible sludge treatment technology in China at that time, the sludge generated by sewage treatment plants was temporarily piled up on the reserved land. As time goes by, the amount of sludge piled up continues to increase. During the process of containment, shoveling, and ditch filling, the debris in the sludge also increases. Construction waste, plant waste, and domestic waste are all mixed in. Disposal is difficult; at the same time, the nature of the sludge determines that it cannot be dried, and the moisture content of long-term storage is still very high. After testing, the average moisture content is 81.48%, showing a swampy shape, some jelly blocks...

AI Technical Summary

Problems solved by technology

As time goes by, the amount of sludge piled up continues to increase. During the process of containment, shoveling, and ditch filling, the debris in the sludge also increases. Construction waste, plant waste, and domestic waste are all mixed in. Disposal is difficult; at the same time, the nature of the sludge determines that it cannot be dried, and the moisture content of long-term storage is still high. After testing, the average moisture content is 81.48%, showing a swampy shape, some jelly blocks, low bearing capacity, and difficult construction

[0003] The long-term random stacking of sludge occupies a large amount of land and reduces the utilization efficiency of land resources; it emits foul-smelling gas and affects the living environment of surrounding residents; at the same time, sludge stacking produces Leachate will pollute the soil and groundwater environment

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