Slurry stirring and spraying machine for cemented sand and gravel dam

A cemented sand gravel dam and slurry spraying technology, which is applied to cement mixing devices, infrastructure engineering, clay preparation devices, etc., can solve the problems of uneven mixing of cementitious materials and aggregates and less consumption, and reduce the Construction cost, ensure uniformity, ensure quality effect

Inactive Publication Date: 2020-11-10
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Slurry stirring and spraying machine for cemented sand and gravel dam
  • Slurry stirring and spraying machine for cemented sand and gravel dam
  • Slurry stirring and spraying machine for cemented sand and gravel dam

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1. At present, when the cemented sand and gravel dam is being constructed, there is no special mixing and spraying link. The existing construction method is to add a small amount of cementitious material and water to the sand and gravel and then turn it over with a mixer or a material pit. Due to the small amount of cementitious material, the use of mixer or pit turning method will cause uneven mixing of cementitious material and aggregate, and in the process of loading and unloading, transportation and warehousing, etc. , all have varying degrees of separation of aggregate and cementitious material.

[0025] In view of the above problems, this embodiment provides a cemented sand and gravel dam slurry spraying machine, such as figure 1 Shown, comprise four-wheeled cart 2, the head end of four-wheeled cart 2 is fixedly connected together with the tail end of tractor 1, and tractor 1 drives four-wheeled cart 2 as traction power, and tractor 1 is a high-horsepower ...

Embodiment 2

[0027] Embodiment 2, a grouting and spraying machine for cemented sand and gravel dam in this implementation will be described centering on the differences from Embodiment 1.

[0028] In the present embodiment, the stirring blade 3 is a stirring spiral blade, and the outer diameter of the stirring blade 3 gradually decreases from the bottom to the top, and the outer diameter of the bottom of the stirring blade 3 is larger, so that the glue on the bottom of the stirring tank 7 can be more comprehensively adjusted. Stirring the cementitious material improves the stirring efficiency of the cementitious material, makes the mixing more uniform, and improves the grouting effect.

Embodiment 3

[0029] Embodiment 3, a cemented sand and gravel dam mixing and spraying machine in this implementation will be described centering on the differences from Embodiment 1.

[0030] In this embodiment, a guardrail is fixedly installed above the rear half of the four-wheeled cart 2. The added guardrail can better ensure the personal safety of the operator and prevent the operator from falling when feeding through the feed port 6. Condition.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28C5/42E02D15/02
CPCB28C5/42B28C5/421B28C5/4203B28C5/4258B28C5/4296E02D15/02
Inventor 杨世锋孙明权柴启辉孙佳田青青黄莎莎
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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