Method for preparing water glass self-hardening sand curing agent from glycerol diacetate

Abstract

The invention belongs to the technical field of curing agents, and particularly relates to a method for preparing a water glass self-hardening sand curing agent from glycerol diacetate. A stirring tank used in the method comprises a tank body, a feeding hole in the upper portion of the tank body and a discharging hole in the lower portion of the tank body, wherein a motor is fixedly arranged in the middle of the upper end of the tank body, the output end of the motor is in transmission connection with a first rotating shaft, the first rotating shaft penetrates through the upper end of the tank body, extends into the inner cavity of the tank body and is rotationally connected with the bottom of the inner cavity of the tank body, and a plurality of groups of crankshafts are arranged on the first rotating shaft at intervals. Through the arrangement of the crankshaft, the connecting rod and the hydraulic cylinder, materials flowing in a rotating mode in the tank body can be disturbed, impact dispersion is achieved, the stirring effect is improved, the materials on the inner layer and the outer layer of the tank body are moved to the inner side, and mixing of the materials on the inner layer and the outer layer is accelerated, so that the materials are mixed more sufficiently and are better in uniformity.

Description

technical field [0001] The invention belongs to the technical field of curing agents, in particular to a method for preparing a curing agent for water glass self-setting sand from glycerol diacetate. Background technique [0002] The reinforcement of silt and fine sand is one of the most difficult problems encountered in the process of foundation excavation. Since silt and fine sand are not easy to reinforce, foundation collapse often occurs during construction. At present, the grouting materials used to reinforce fine sand are mainly superfine cement and acidic water glass. Among them, ultrafine cement and other granular grouting materials have high strength, but there are problems such as unstable permeability, which can only solve the grouting problem of loose powder and fine sand. The acidic water glass grouting material has been widely used in the reinforcement of silty sand due to its good permeability, but its strength is low, and once it encounters a stratum with a ...

AI Technical Summary

Problems solved by technology

[0007] In order to make up for the deficiencies in the prior art, a kind of glycerol diacetate is proposed in the present invention to prepare the method for water glass self-setting sand curing agent. The present invention is mainly used to solve the problem of simple stirring structure in the existing stirring tank, poor stirring effect, and Stirring efficiency, and insufficient fluidity between materials in each layer, resulting in affected uniformity, which is not conducive to ensuring the quality of the prepared curing agent

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