Slurry stirring and spraying machine for cemented sand and gravel dam

Abstract

The invention relates to the technical field of slurry spraying, in particular to a slurry stirring and spraying machine for a cemented sand gravel dam. The slurry stirring and spraying machine is characterized in that a traction mechanism is connected and fixed to a supporting traveling mechanism, a slurry stirring system is arranged above the supporting traveling mechanism, a supporting frame isconnected to the tail end of the supporting traveling mechanism, a spray head system is arranged on the supporting frame, and the spray head system is connected with the slurry stirring system. According to the slurry stirring and spraying machine for the cemented sand gravel dam, a cementing material can be uniformly sprayed on an aggregate, so that uniform slurry spraying on the sand and gravelworking face is realized, the penetration degree of sprayed slurry adapts to the laying thickness of the aggregate, the slurry spraying amount per unit area can be accurately controlled, a water-cement mixture of the cementing material can be continuously stirred, and the phenomenon of water-cement separation is avoided.

Description

Technical field: [0001] The invention relates to the technical field of grouting, in particular to a grouting and grouting machine for cemented sand and gravel dams. Background technique: [0002] The cemented sand and gravel dam is a new dam type based on the theory and construction method of rockfill dams and roller compacted concrete dams. However, due to the short development period of cemented sand and gravel dams, especially the lack of new technology and new equipment for this new dam type, the application of this dam type in China is mostly limited to temporary projects or auxiliary projects. At present, there is no special mixing and spraying link in the construction of cemented sand and gravel dams. The existing construction method is to add a small amount of cementitious materials (mainly Refers to cement and fly ash and a small amount of additives) and water are mixed by mixer mixing method or material pit turning method, there are a series of problems, and beca...

AI Technical Summary

Problems solved by technology

[0003] During the construction of cemented sand and gravel dams, due to the small amount of cementitious materials in cemented sand and gravel materials, the use of mixers or pit turning methods will make the mixing of cementitious materials and aggregates uneven, and during loading and unloading, In various processes such as transportation and warehousing, there are different degrees of separation of aggregate and cementitious material. The present invention provides a gelled sand and gravel dam mixing and spraying machine, which can evenly spray the cementitious material on the bone. In terms of materials, the uniform grouting on the surface of the gravel bin can be realized, and the infiltration degree of the sprayed grout is suitable for the paving thickness of the aggregate, which can accurately control the amount of grouting per unit area, and can make the cementitious material The water-gel mixture is continuously stirred to avoid the phenomenon of water-gel separation

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