Sand-making production line with less dust and environmental protection
Under the slogan "Lucid waters and lush mountains are invaluable assets", all sand and gravel manufacturers are actively transforming and setting up sand factories. The consideration is whether the environmental protection standards are met. Therefore, the sand production line with less dust has become an important part of the sand factory environmental aspects.
In my country's traditional sand making process, one is dry sand making and the other is wet sand making, and over the years, there are two major problems that have plagued domestic artificial sand making, one is environmental protection, and the other is the fineness of finished sand. The problems of modulus, stone powder content and moisture content are difficult to control. These two major problems cannot be solved well by the dry and wet sand making processes. Let's take a look at the situation of these two kinds of sand making.
Dry sand making can solve the problem of high stone powder content. However, in the production process, the dust is very large, and the environmental pollution is quite serious. Only by implementing closed production can the large amount of dust be prevented from spreading.
Moreover, the content of stone powder often exceeds the standard, and the powder and mud smaller than 0.08mm in the stone powder cannot be separated, which affects the quality of concrete and increases the construction cost.
Using wet sand making, the output of finished sand is low and the dehydration period is long, and a large volume silo needs to be set up for dehydration. The loss of stone powder is large, the recovery is difficult, and the stone powder content of the finished sand is low. Production wastewater has a high degree of environmental pollution and high water treatment costs, making it difficult to realize resource recycling.
Environmental protection SMMVIK has a strange trick:
In order to make up for the shortage of dry sand making and wet sand making, after unremitting efforts of sand making experts, the environmentally friendly semi-dry sand making technology has been unanimously identified by the expert group and has now been used. Semi-dry sand making is not only through the recycling of waste The utilization also saves the production cost, and the recycling of resources also creates objective economic benefits.
SMMVIKVU dry sand making system is an update and upgrade of SMMVIK on the basis of the original dry sand making system. It adopts a highly intensive tower-type fully enclosed layout, which integrates dry sand making, particle size optimization, stone powder control, gradation adjustment, Moisture content control and environmental protection treatment are integrated, and the quality of the produced machine-made sand is comparable to that of natural sand, creating new opportunities and values for the development of the sand, cement and concrete industry chain.