Dry mortar equipment how to recover the secondary recycling? The main raw material contained in dry mortar is sand, and the amount of raw sand used in the production of dry mortar is relatively large. The amount of sand used for construction in China is about 1 billion tons per year, and with continuous mining, natural sandstone resources in the country are becoming increasingly scarce and the price of sand is getting higher and higher, with an outstanding contradiction between supply and demand.
In this context, it is necessary to find a solution to the problem by replacing natural sand with artificial sand. Waste material from mines or waste limestone from cement plant tailings, or industrial solid waste such as construction waste, coal gangue and steel slag can be crushed and sieved to produce artificial sand for dry mortar grout. The stone will not have any adverse effect on the quality of the product and you can use it with confidence.
Dry mortar equipment
After such a solution, not only is the waste being recycled, but also the pollution and damage caused to the environment is reduced. It can be said that it is fully in line with the concept of circular economy advocated by China and contributes to the further development of dry mortar production enterprises.
Comparison between dry mortar equipment and traditional mortarTraditional mortar is mixed and used at the construction site. It needs to occupy a certain position and the powder layer can cause some environmental pollution on site. At the same time, these materials build up on the open mud, producing more impurities and slurry. Large quantities, inaccurate metering, difficult to control and random sieving of aggregates lead to high void ratios, large shrinkage and poor impermeability, which can eventually lead to blank plastering of external walls. Cracks and infiltration occur. In contrast, all the components of a dry (mixed) mortar are precisely mixed and homogenously blended in the production plant and then mixed on site according to a defined water to ash ratio. It overcomes problems such as inaccurate metering, environmental pollution and excessive slurry content. It has the characteristics of low moisture, low shrinkage, firm bonding, anti-cracking and anti-seepage, which can basically meet the requirements of new wall materials.
The dry mortar production line starts the feeding device according to the process batching sequence. When the material is rapidly fed into the metering box to an approximate value (determined when adjusting the specific value), the rapid feeding device stops. The fine feeding unit continues feeding and gradually approaches the batch. In view of the suspension volume, the fine feeder gradually decelerates and pre-stops (determined when adjusting the volume). At the same time, the shut-off valve is immediately closed to intercept any possible collapse. The instrumentation keeps track of the amount of material to be taken. After the fine feeder has stopped, the delay is Δt seconds. After the stopping of the stationary unit, the steady display of the meter shows the value of the first material to be taken in the treatment batch. Next, the second material starts a rapid repetition of the above process to the dosage box until the entire dosage process is completed.