Polycarboxylate superplasticizer preparation method

Abstract

The invention relates to a polycarboxylate superplasticizer preparation method, in particular to a polycarboxylate superplasticizer powder filling device which comprises a worktable, an intermittent transposition mechanism, a rotary supporting ring assembly, a powder filling mechanism and a vibrating mechanism. The intermittent transposition mechanism is arranged on the tabletop of the worktable and comprises a poking chuck, and four arc grooves are circumferentially distributed in the poking chuck at equal intervals relative to the center of the poking chuck. The rotary supporting ring assembly is arranged on the tabletop of the worktable, and the rotating center axis of the rotary supporting ring assembly coincides with the rotating center axis of the poking chuck. The powder filling mechanism and the vibrating mechanism are both arranged on the tabletop of the worktable and are distributed at the side positions of two adjacent arc grooves in a one-to-one correspondence manner. The device involved in the method can cooperate with an automatic filling production line to perform automatic quantitative filling of polycarboxylate superplasticizer powder and automatic spreading and compacting of barreled powder, so that the problems of low manual operation efficiency and operation inconvenience are solved, and the labor intensity of workers is reduced.

Description

technical field [0001] The invention relates to the technical field of production and preparation of concrete additives, and specifically proposes a preparation method of a polycarboxylate water reducer. Background technique [0002] Polycarboxylate superplasticizer is a high-performance superplasticizer, a cement dispersant in the application of cement concrete, widely used in highways, bridges, dams, tunnels, high-rise buildings and other projects, the product is green and environmentally friendly, not easy to Flammable and non-explosive, it can be safely transported by train and car. [0003] Polycarboxylate water reducer is the third generation of water reducer. Before the appearance of polycarboxylate water reducer, there was the first generation of lignosulfonate water reducer and the second generation of naphthalene sulfonate synthesized by condensation reaction. Salt formaldehyde condensate, melamine formaldehyde condensate, acetone sulfonate formaldehyde condensate...

AI Technical Summary

Problems solved by technology

[0005] 1) Manual filling is affected by human subjective enthusiasm, resulting in low filling efficiency and unbalanced filling. At the same time, manual loading and unloading are required in the manual filling process, so the labor intensity is high;

[0006] 2) Regardless of whether it is packaged in a packaging barrel or a sealed packaging bag, there are requirements for the packaging volume, especially in the process of packaging the packaging barrel, in order to make full use of the packaging volume, polycarboxylate will basically be produced during the filling process. The powder of the water reducer is piled up in a pointed cone shape. During the filling process, it is often necessary to spread it manually and compact the powder. Obviously, it is troublesome, and it is easy to cause waste of powder during the operation process.

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