The Main Problems in the Design of Dry Mix Mortar ...
2021-8-25 · Sand treatment and drying equipment should be placed above the minimum wind frequency of the entire equipment, as close as possible to the heat source and power source. 2.2 Process Design (1) Aggregation Pre-treatment Process 1 China''s natural sand resources are increasingly scarce, and mechanism sand has been widely used in dry-mix mortar ...