As a basic building material, sand has a wide range of applications and a large demand. Therefore, the sand production line must have a high output and good quality. Commonly used sand making production lines, whether it is wet sand making or dry sand making, most of the basic equipment required are the same, but the main difference between dry sand making and wet sand making processes is that different treatments are used for the stone powder and mud content in the machine-made sand. There are pros and cons between the two schemes.
1. Dry sand making
The specific processing flow of dry sand making is: Raw materials→vibrating feeder (feeding)→jaw crusher (coarse crushing)→cone crushing/impact crushing (medium and fine crushing)→vibrating screen (screening large aggregates)→production Sand machine (sand making and shaping)→vibrating screen (sieving small aggregates)→dust collector (dust removal)→powder separator (powder selection)→finished sand.
Pros: Separation of finished machine-made sand from sand and powder by using a powder concentrator does not require water, and the production cost is lower; at the same time, the fine powder produced can be recycled by dust removal and powder separator, and used for road cushion or slag brick raw materials, etc. , higher resource utilization.
Disadvantages: The air in the production workshop is dry, dust overflows, and the dust phenomenon is obvious, which will cause dust pollution, and dust removal equipment is required.
2. Wet sand making
The specific processing flow of wet sand making is: raw material → vibrating feeder (feeding) → jaw crusher (coarse crushing) → cone crushing/impact crushing (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.
Pros: 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 machine-made sand is clean and tidy, with good gradation and high quality.
Disadvantages: Sand making requires a lot of water, which is limited by the location of the water source; the cost of sand washing water and sewage treatment increases the production cost.
The choice of wet sand making or dry sand making should be combined with your own working conditions and processing needs. If the water resources in the area are not rich enough, you can choose dry sand making. If the processed materials are minerals that avoid water, you can also choose dry sand making. Others In some cases, wet sand making can be used. Regardless of whether it is dry sand making or wet sand making, as long as it can meet the environmental protection requirements and meet the lower emission of dust, noise, and waste cement and sand, it will produce good economic benefits and also have high environmental benefits.
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