As a basic building material, sand has a wide range of applications and a very large demand, so the sand production line is required to have high output and good quality. Sand making production lines, whether wet sand making or dry sand making, require mostly the same basic equipment. However, the main difference between dry sand making and wet sand making is that different treatment schemes are used for the stone powder and mud content in the machine-made sand, and there are advantages and disadvantages between the two type sand making.

1. Dry sand making

The specific processing flow of dry sand making is: raw material → vibrating feeder (feeding) → jaw crusher (coarse crushing) → cone crusher/impact crusher (medium and fine crushing) → vibrating screen (screening large aggregates) → making Sand machine (sand making and shaping) → vibrating screen (screening small aggregates) → dust collector (dust removal) → powder separator (powder selection) → finished sand.

Advantages: The powder separator is used to separate the sand and powder of the finished machine-made sand, without the need for water, and the production cost is lower; at the same time, the fine powder produced can be recovered by dust removal and powder separator, and used for road cushion or slag brick raw materials, etc. , the resource utilization rate is higher.

Disadvantages: The air in the production workshop is dry, dust overflows, and the phenomenon of fugitive dust is obvious, which will cause dust pollution, and dust removal equipment needs to be equipped.

2. Wet sand making

The specific processing flow of wet sand making is: raw material → vibrating feeder (feeding) → jaw crusher (coarse crushing) → cone crusher/impact crusher (medium and fine crushing) → vibrating screen (screening large aggregates) → making Sand machine (sand making and shaping) → vibrating screen (screening small aggregates) → sand washing machine (sand washing) → finished sand.

Advantages: The sand washing machine is used for cleaning and sorting, and a large amount of water is used for washing. There is no dust pollution in the production environment. The finished product of the machine-made sand is clean and tidy, with good gradation and high quality.

Disadvantages: There is a lot of water for sand making, which is limited by the location of the water source; the water for sand washing and sewage treatment costs increase the production cost.

The choice of wet sand making or dry sand making should be based on your own working conditions and processing requirements. If the water resources in the area are not rich enough, dry sand making can be used. If the processed materials are water-repellent minerals, dry sand making can also be used. Others In some cases, wet sand making can be used. Whether it is dry sand making or wet sand making, as long as it can meet the environmental protection requirements and meet the low emission of dust, noise and waste cement sand, it will produce good economic benefits and high environmental benefits.