According to the statistics of "Construction Times", in 2019, my country invested in the construction of railways, highways, tracks, airports, water conservancy, and affordable housing, with a total of 119 projects. According to industry statistics, using 1 ton of steel in a concrete structure requires 6 tons of cement and 36 tons of sand and gravel aggregates. The amount used is about 70,000 tons, and the amount of sand and gravel aggregate used in construction is nearly 1 ton per square meter. It can be seen that my country's demand for sand and gravel aggregate is in a growing stage. With the development of the project, the demand for sand and gravel will continue to increase in 2020.
However, with the continuous development of environmental protection work in my country, the exploitation of natural river sand is limited, and the supply of sand and gravel is insufficient, and machine-made sand has become a new choice. The modern, large-scale and environmentally friendly sand and gravel aggregate production line has become a major choice for sand and gravel aggregate suppliers.
Guided by market development needs and in response to the national call for environmental protection, Bellian Machine has developed a new type of sand and gravel equipment to assist the production and operation of sand and gravel aggregate manufacturers.
Advantages of machine-made sand
1. Good adhesion
The particle size of machine-made sand is more irregular, and when cement and other structures are used for bonding, it tends to have better adhesion, more compression resistance, and longer service life.
2. Stable supply
The raw materials of machine-made sand are sufficient. In addition to pebble, bluestone, granite, limestone and other stones, urban construction waste (construction waste), gravel tailings, leftovers, stone chips, gravel, mine tailings, etc. can be used as machine-made sand raw materials.
3. Controllable
Machine-made sand is sand that reaches a certain particle size after being ground by professional grinding equipment. It can control the relative gradation according to the specific application requirements, and has a certain controllability.
VSI Sand Making Machine performance advantages
- 01. Deep cavity impeller, the throughput is increased by 30%
- 02. The surrounding guard can be turned up and down to prolong the service life
- 03. Combined throwing head, only need to replace the worn part, which can reduce the use cost by 30%
- 04. Center and peripheral feeding, flexible adjustment, easy conversion
- 05. The lubrication method can be selected, and the bearing chamber is designed with a thin oil type and a grease type, which can realize the overall exchange.
Extensive observation and acquisition, thick accumulation and thin hair, Bellian machines have been in use for more than 40 years, always changing with the market demand, constantly learning and improving, challenging themselves, daring to innovate, and making steady progress!
