Device and method for refluxing and drying wet aggregate in production process of dry-mixed mortar

Abstract

The invention discloses a device and a method for refluxing and drying wet aggregate in the production process of dry-mixed mortar. The refluxing and drying device comprises a drying kiln, a second discharging hole, a refluxing transmission system and a temperature control system, wherein the second discharging hole is formed on a tail cover and is used for discharging the wet aggregate which are not fully dried; the refluxing transmission system is arranged between the second discharging hole and a feeding hole; the temperature control system is arranged in the tail cover; and when detecting that the temperature of the drying kiln is lower than the set temperature, the temperature control system controls to close a first discharging hole, ensure that the wet aggregate in a raw material bin stops entering the drying kiln, open the second discharging hole and start the refluxing transmission system to feed the aggregate into the drying kiln again for processing, and when detecting that the temperature of the drying kiln is not lower than the set temperature any more, the temperature control system controls to open the first discharging hole, ensure that the wet aggregate in the raw material bin enters the drying kiln again, close the second discharging hole and stop the refluxing transmission system. By the device and the method, the quality and shelf life of a premixed dry-mixed mortar product are improved.

Description

technical field [0001] The invention relates to a production method of dry-mixed mortar, in particular to a reflux drying method for wet aggregate in the dry-mix mortar production process, and a reflux drying device for realizing the wet aggregate drying method. Background technique [0002] Dry-mixed mortar is composed of solid materials such as cementitious materials, mineral admixtures, fine aggregates, and admixtures, and is a dry powder building material prepared by pre-mixing through a dry-mixing process according to a certain ratio. Dry-mixed mortar is a new type of green and energy-saving building material. It has many advantages such as improving the quality of construction projects and construction efficiency, improving the environment of the construction site, and saving resources. It is in line with the national sustainable development strategy and is widely used in building wall masonry. , Plastering, indoor and outdoor decoration and indoor and outdoor floor co...

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a reflux drying method for wet aggregates in the production process of dry-mixed mortar, and a reflux drying device for realizing the wet aggregate drying method, so as to solve the problem that the wet aggregates cannot be returned to the kiln in the current dry-mixed mortar production process Technical problems of drying, so that the quality of ready-mixed dry-mixed mortar products and the shelf life of products can be improved

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