Landscaping soil preparation method of mud cake obtained after muck is subjected to mud-sand separation

Abstract

The embodiment of the invention discloses a landscaping soil preparation method of the mud cake obtained after muck is subjected to mud-sand separation. The method comprises the following steps: carrying out crushing treatment on the mud cake obtained after mud-sand separation of the engineering muck by adopting a bucket crushing and screening machine to obtain particles with the particle size of less than 2 cm; metering a solid modifier by using a loader, carrying the solid modifier, putting the solid modifier into the crushed mud cake, adding phosphoric acid, and uniformly mixing by using a stirrer; and carrying the uniformly stirred crushed soil to a maintenance area for stacking and maintenance, and carrying out component detection on the mixture. The mud cake formed by mud-sand separation of engineering muck is improved into landscaping soil by adding the solid modifier, the steps of high-temperature heating and other extra energy consumption are not needed in the improvement process, the production process is simple, transportation is convenient, the requirement for landscaping soil can be met, and moreover, the landscaping soil meeting various environmental requirements can be obtained by adjusting the proportional components of the modifier.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of environmental protection, in particular to a method for preparing landscaping soil from mud cakes obtained by separating dregs from mud and sand. Background technique [0002] With the acceleration of the urbanization process, urban construction is also constantly upgrading. As an inevitable product of urban construction and development, the number of generated and discharged construction dregs is also increasing rapidly, of which engineering dregs account for a considerable proportion, accounting for about 30% to 40% of the total construction waste. However, at present, landfill and roadbed backfill are the main methods of disposal of engineering dregs. The distance between the receiving site and the urban area is gradually increasing, and the transportation front is constantly lengthening. The contradictions are becoming more and more prominent; the utilization rate of muck re...

AI Technical Summary

Problems solved by technology

However, at present, landfill and roadbed backfill are the main methods of disposal of engineering dregs. The distance between the receiving site and the urban area is gradually increasing, and the transportation front is constantly lengthening. Contradictions are becoming increasingly prominent; the utilization rate of muck resources is extremely low; stubborn diseases such as traffic accidents and dust pollution caused by muck transportation have become more and more difficult problems for urban management departments

In the prior art, wall materials prepared from mud cakes after separation of mud and sand require high-temperature calcination, which is in contradiction with the current environmental protection work, and the production equipment is complicated and occupies a large area, making it difficult to be widely used.