When design dry mix mortar production line, it is influenced by many factors such as cost-effectiveness, product requirements, production processes, flexibility and environmental protection. Though some of factors may vary by different situations, there are basic design concepts for specific production goals. Generally, according to the layout of the production line, dry mix mortar production line can be divided into compact production line, stage production line, tower production line and stage and tower combination production line. With the automation improvement of dry mix mortar production line, the whole investment is closed to stage production lines, considering the transportation way to mixer. Compact production line is suitable for special mortar products with small production capacity due to its features such as small floor area and low investment. In addition, compact production lines can not be arbitrarily expanded, there are capacity limits. Stage production line and stage plus tower combination production line have the feature of large floor area, before the actual production, the raw materials of the stage production line silo need to be transported to the mixer through a bucket elevator and a belt conveyor, also the investment, energy consumption and production cost are increased compared with tower production line. A cleaning conveyor is required to replace the product If mechanical system is used. But on the other hand, this kind of system used to expand the quantity of raw material silo, less pressure on the floor and less investment on steel. In addition, the separation of mixer and material silo is a special design that make stage production line can be installed and used in existing building. Therefore, amongst the limited building height, tower production line can be replaced by stage production line. Tower production line is the best production system, material is only elevated once. In the following production, the material is flowing by its weight. All material is elevated into the mixer through the metering system. Tower production line is almost suitable for all kinds of dry mix mortar, because of its small floor area, flexibility and easy to change products. It saved production cost and energy compared with stage production line, because the material is elevated once during the producing process. The material is totally transported from the top to bottom by its gravity, so it reduced the costs. There is no suitable conveying route after precise metering, which ensures less residue, pollution and loss of raw materials in transporting, ensuing a stable formulating ratio of raw material. These advantages make tower production line is more and more popular in Europe, but it has to adjust the system design cause some places have the limit of building height. Dry mix mortar production line is needed to equip the accurate automatic weighing device so that both the main material and the additive agent can achieve the high standard measurement requirements. The standard size tower production equipment have 8-14 main material silo and more than 10 small size additive material silos.
When dry mix mortar production line is combined with advanced transportation and high efficient working equipment, so that it can not only produce high quality dry mix mortar, but also ensure consistent, stable and high quality construction. Nowadays, no matter the bulk pre-mixed mortar products or new special products, “instantiation” and “flexibility” have come true in production process.