Preparation method of concrete expansive agent

Abstract

The invention relates to a preparation method of a concrete expansive agent. The method involves a bottom plate, a bearing device, a grinding device and a driving device. The bearing device is installed at the upper end of the bottom plate through a supporting rod, the grinding device is slidably connected to the middle of the upper end of the bearing device, and the driving device is arranged on the right side of the grinding device and fixedly connected with the bottom plate. The driving device is in threaded fit with the grinding device. The method can solve the problems that when existing equipment is used for grinding mineral aggregates for producing expanding agents, the mineral aggregates cannot be crushed first and then ground, the phenomenon that grinding fails due to the fact that the mineral aggregates are too large easily occurs, and thus the success rate of grinding the mineral aggregates is lowered; meanwhile, the mineral aggregates cannot be ground in a reciprocating mode, the grinding effect of the mineral aggregates is lowered, and the sizes of the ground mineral aggregate are not consistent; and moreover, the two sides of the flatly-spread mineral aggregates cannot be gathered together during grinding, and the mineral aggregates on the two sides cannot be ground easily.

Description

technical field [0001] The invention relates to the technical field of expansion agent production, in particular to a method for preparing a concrete expansion agent. Background technique [0002] Concrete expansion agent is mainly used to prepare expansive concrete. Concrete expansion agent belongs to calcium sulfoaluminate type concrete expansion agent, does not contain sodium salt, and should not cause concrete alkali-aggregate reaction. Moreover, it has good durability, stable expansion performance and continuous strength. Rise; Concrete expansion agent is mainly suitable for the construction of underground buildings, the production of cement products, the grouting of prefabricated components, the lining protection of steel pipes, etc. During the production of concrete expansion agent, the raw materials need to be ground and crushed to facilitate subsequent mixing. [0003] At present, the existing equipment usually has the following deficiencies when grinding the minera...

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Problems solved by technology

[0005] The invention can solve the problem that when the existing equipment grinds the mineral material for the production of the expansion agent, the mineral material cannot be crushed before grinding, and the phenomenon that the mineral material is too large will easily lead to grinding failure, thereby reducing the amount of the mineral material. At the same time, the function of reciprocating grinding of mineral materials cannot be realized, thereby reducing the effect of mineral material grinding, and the volume of the ground mineral materials is prone to inconsistent phenomena, and the flat ore cannot be adjusted during grinding. The two sides of the material are gathered together, and the mineral materials on both sides are prone to problems such as unground phenomenon

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