In recent years, the use of manufactured sand to replace natural sand has become an inevitable trend in the sustainable development of concrete. However, limited by the relevant standards of manufactured sand and the current production process, the production of manufactured sand will produce a large amount of excess stone powder, which is usually discarded by stockpiling or landfill disposal. As my country's infrastructure construction continues to advance, the demand for concrete continues to increase. On the other hand, high-quality traditional mineral admixtures such as fly ash and slag are increasingly scarce. It is urgent to find suitable alternative materials.

Using the excess waste stone powder in machine-made sand as mineral admixtures can not only realize its high value-added utilization, but also help solve the shortage problem of traditional mineral admixtures. Waste stone powder as a mineral admixture can effectively reduce carbon emissions in concrete production. The total carbon emissions of concrete mixed with 20% waste stone powder reduce by nearly 20%, and it is of great significance to achieve the "double carbon" goal of my country's concrete industry.



During the production process of machine-made sand in the sand making building of Huayi Project, it needs to go through multiple processes such as crushing, screening, and sand making. Stone powder will inevitably be produced. An appropriate amount of stone powder can improve the strength of concrete under the action of hydration. Filling the gaps increases the density and can also reduce the risk of segregation and bleeding of the concrete mix. However, if the stone powder content is too high, it will not be conducive to the bonding of aggregates and cement stones, and the performance of the concrete will naturally be reduced. Stone powder in machine-made sand Separation and recycling are crucial.

As a manufacturer of dry sand making equipment, Huayi Engineering has a systematic treatment method for the separation and recovery of stone powder in dry sand making. The following will be briefly introduced to provide reference for relevant customers.

Sand powder separation in dry sand making

In the process of dry sand making, in order to control the stone powder from overflowing and scattering, the production equipment can be closed for processing, and then equipped with equipment such as bag dust collectors and coarse and fine powder separators to separate and recycle them.


During the production process of machine-made sand in the sand making building of Huayi Project, it needs to go through multiple processes such as crushing, screening, and sand making. Stone powder will inevitably be produced. An appropriate amount of stone powder can improve the strength of concrete under the action of hydration. Filling the gaps increases the density and can also reduce the risk of segregation and bleeding of the concrete mix. However, if the stone powder content is too high, it will not be conducive to the bonding of aggregates and cement stones, and the performance of the concrete will naturally be reduced. Stone powder in machine-made sand Separation and recycling are crucial.


With its advanced technology and excellent equipment, Huayi Engineering has successfully created high-quality machine-made sand, winning the trust and praise of customers.

In the future, Huayi Engineering will continue to delve into the field of sand making, adhering to the corporate philosophy of "professionalism, innovation, integrity, and win-win", and is committed to providing customers with better, more efficient, and more competitive products and services, and promoting the Development and progress of the sand industry.