Premixing device for cement blended with concrete early-strength water reducing agent

Abstract

The invention discloses a premixing device for cement blended with a concrete early-strength water reducing agent and relates to the technical field of concrete equipment. The premixing device comprises a mixing tank composed of a feeding chamber and a material mixing chamber and a tank body supporting platform, wherein a material passing screen mesh is arranged between the feeding chamber and thematerial mixing chamber. By adopting the structure of the device disclosed by the invention, automatic mixing of the cement and the water reducing agent is realized, so that manpower is saved, the material mixing uniformity is improved and the water reducing agent is uniformly dispersed into the cement; pollution, caused by dust in a cement bag cutting process, on a working environment is alleviated; meanwhile, the sieving of the cement is realized, and a phenomenon that an agglomeration phenomenon occurs in a material mixing process of the cement so that the uniform dispersion of the water reducing agent is influenced is prevented; a vibration motor and a vibration spring are further arranged so that the sieving speed of materials and the material mixing uniformity are improved; a mixedmaterial is humidified through a spraying humidification nozzle so that dust pressure in the material mixing chamber is reduced; meanwhile, further uniform dispersion of the water reducing agent in the cement is promoted.

Description

Technical field: [0001] The invention relates to the technical field of concrete equipment, in particular to a premixing device for mixing cement with a concrete early-strength water reducer. Background technique: [0002] With the rapid development of social economy, the requirements for concrete are getting higher and higher. According to statistics, more than 80% of commercial concrete is mixed with concrete admixtures to improve performance and meet construction requirements. At present, concrete admixtures are mainly developed in the direction of high efficiency, multi-function and compounding. The use of composite admixtures can improve the stability of fresh concrete, such as no segregation, no bleeding, etc., and can also adjust the hydration and hardening process of cement, such as delaying the heat release of hydration, early strength, high strength, etc. [0003] As the representative of the third-generation water reducer, polycarboxylate water reducer has been ...

AI Technical Summary

Problems solved by technology

Because cement is easy to produce dust when opening the bag to feed the mixer, which seriously pollutes the working environment, even if the mixer is placed in a closed environment, dust will inevitably be generated; and the cement is easy to be damp and agglomerated during storage. It is easy to agglomerate when it is directly used in concrete mixing, and at the same time affects the uniform dispersion of early strength water reducer

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