A large amount of dust will be generated during the operation of crushers and screening machines. These dusts not only seriously pollute the natural environment in the surrounding areas, but also bring great harm to the health of front-line operators. Long-term dust pollution is likely to cause occupational diseases. In this regard, it is necessary to improve the treatment of dust from the following two points.
1 Wet dust removal
The so-called wet dust removal, as the name suggests, is to use water to remove dust, and effective water spray humidification can reduce the situation of dust flying and achieve the goal of dust removal.
Except for special links, most sand and gravel production lines can use wet dust removal, such as:
★ Before the aggregate enters the coarse crushing station and the medium and fine crushing station, spray water to humidify, which can effectively reduce the dust generated in the aggregate crushing process.
★ When the sieving machine performs the grading and screening of the aggregate, the water sieving method is adopted to completely eliminate the generation of dust.
★ Install a spray dust removal device at the discharge port of the belt conveyor.
★ At the discharge position with large height difference, reasonably install buffer chute to reduce the aggregate drop, which can well reduce the dust flying in the movement link
2 Dry dust removal
The biggest difference between dry dust removal and wet dust removal is that there is no water in dry dust removal. This method can be used for locations or environments where wet dust removal is not suitable. The main equipment for dry dust removal is a dry dust collector.
Whether wet dust removal or dry dust removal, has a very important role. Wet dust removal is an effective dust removal method, and it should be placed in a priority position in the sand and gravel production line, but it is also necessary to pay attention to the limitations and shortcomings of wet dust removal, which will increase sewage discharge and bring new problems.