With the promulgation of environmental protection policies, river sand mining management has been strengthened, and the amount of mining has been greatly reduced. The implementation of environmental protection policies has greatly changed the production standard of machine-made sand, which gives the machine-building equipment manufacturing industry new development opportunities. Facing the big waves in the market, whether it is the gravel industry or the crusher manufacturing industry, it is necessary to comply with the new policy environment and put green environmental protection first in production. Therefore, if you want the sand production line to pass the EIA, and you want the machine-made sand to meet the construction sand standard, it is important to choose the crushing equipment!
There are many sand making machines on the market, and it is recommended to use PLS series vertical impact crushers (sand making machines) here. PLS series sand making machine has the following performance advantages:
1. Low cost: the body is made of high-quality raw materials, the equipment is strong and durable, the process is excellent, the connection between the devices is reasonable and firm, and the mechanical operation is stable. The wearing head of the wearing parts is designed with high wear-resistant materials, which is more wear-resistant and reduces replacement. Frequency to reduce daily operating costs;
2. Environmental protection and low noise: the sealed structure design, combined with multi-effect dust removal equipment, eliminates the work trouble caused by dust and noise, and creates a green sand making environment;
3. Efficient and flexible: Two feeding modes, center and periphery, flexible adjustment, efficient crushing and convenient conversion.
4. Good sand making shape: the equipment adopts the principle of stone beat stone and stone beat iron, with the effect of making sand and shaping, and the processed grain shape is good and the quality is high;
5. Convenient and fast maintenance: Optional hanging manual or electric hoist can be used to easily lift the machine cover, feed hopper, distributor, impeller, main shaft, etc. on the equipment during maintenance and maintenance.
What is the difference between machine-made sand and river sand?
1. Different formation conditions. The machine-made sand is produced by crushing by the crusher, and the river sand is formed by natural erosion and precipitation.
2. The quality is different. The quality of machine-made sand can be controlled. If you want to process good sand, you need a suitable sand-making machine; and the formation of river sand is similar, and the gradation hardness is not much different. Therefore, high-quality machine-made sand can completely replace river sand used in building aggregates.
3. Different stock supply. River sand is a non-renewable energy source. Due to years of mining, river sand reserves are decreasing, supply is in short supply, and prices are skyrocketing; while cobblestones have sufficient raw materials, in addition to cobblestones, river pebbles, granite, construction waste, gravel tailings, gravel, etc. It can be used as raw materials for the production of machine-made sand.
4. Different material characteristics. The material characteristics mainly refer to the solidity and durability of the stone. The solidity of the machine-made sand is inferior to that of the river sand, but it can still reach the excellent product index of the national use standard. There is no problem if it is used in ordinary concrete. High quality requirements, it is possible to mix admixtures with machine-made sand, and control the crushing index and stone powder content of concrete at the same time.