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The sand production line is mainly divided into two kinds: one is the wet production line, the other is the dry production line, in the southern region, the water is relatively sufficient, the use of the wet production line is more, the weather in the north is dry, the water resources are not abundant, can not meet the requirements of the wet production line, then in the case of insufficient water resources, the dry production line is to be put into production, at present, environmental protection is deeply rooted in the hearts of the people, if the production of dust, noise has been produced in the process of sand washing, resulting in the production line is not up to standard, will seriously affect the progress of the later production. So what are the conditions needed to establish a dry sand production line?
First, the grade of raw materials should be good
The dry production line eliminates the sand washing link, because the water resources are true and can not cause dust pollution, so the raw materials need to be clean and the grade is good, otherwise it will affect the output and quality of the finished sand.
Second, there is a limit on the scale of the dry production line
The process of dry production line will inevitably cause dust pollution, small-scale production needs to increase water sweeping, spraying, etc. to reduce dust pollution, if large-scale production, the amount of water treatment consumed is relatively large, if the cost of sealing device is not well handled, the problem of environmental pollution will not be solved, and the dry system is relatively higher than the wet system.
3. How to configure a standard dry sand production line
The configuration of the main engine of the dry sand making production line and the wet production line is similar, and the main equipment is generally feeder, jaw crusher, impact crusher/cone crusher, sand making machine, vibrating screen and conveyor and other equipment, crushing + sand making + screening system.
Process advantages of dry sand production line
1. It is not limited by water resources and environmental areas
The dry sand production line is not limited by water resources, even in areas with scarce water resources, dry sand making can also be carried out, and the grading of sand is not affected without water cleaning and impurities.
2. Reduce production costs
The cleaning of sand and gravel in the wet sand making process not only occupies a lot of water resources, but also produces a large amount of wastewater and sludge, and new equipment needs to be introduced to treat these wastes, which increases the production cost to a certain extent.
3. Gradation adjustable
The sand produced by the dry sand making process is separated from the mud powder in the sand and gravel with the separator and the dust collector, and the powder content of the finished sand is controlled by the air volume of the separator to meet different grading requirements to meet the industrial sand standard, so as to improve the compressive strength of concrete and mixing plant.
4. Reduce wastewater discharge and be more environmentally friendly
In the process of dry sand production, there is no need to clean with water, no waste water will be generated, and no wastewater can be discharged in the production process, and the dust pollution is small.
Fourth, dry sand production line equipment price consultation
Due to different processes, the selection and matching ratio of dry sand making production line equipment under different output value requirements is different, and the cost of raw materials and labor consumed by sand making equipment under different selection sizes is unequal, so the price of dry sand making production line equipment in the specific market needs to be roughly estimated according to the actual production needs of users.
