Analysis of the reasons for excessive stone powder in the impact crusher

The impact crusher is one of the commonly used equipment in mining machinery and equipment. It can crush a variety of stones into three types of fragments: coarse, medium and fine. It has been widely used in the production of construction aggregates in railways, highways, electricity, water conservancy and other industries. When using the impact crusher, sometimes you will encounter a large amount of stone powder when crushing stones. Why is this?
 

Reasons for excessive stone powder:

1. The impact crusher mainly uses impact energy to crush materials. The rotation of the rotor in the machine room drives the hammer head to rotate to hit and collide with the stone to break it. The stones collide with each other under the action of the rotor, forming a large stone vortex, which increases the mutual collision between materials. In this process, the rotation of the rotor brings out a large amount of airflow, causing the stone powder to fly out, and the phenomenon of stone powder overflow occurs. In addition, when the impact crusher is working, in addition to the large amount of airflow brought out by the rotation of the rotor, causing the stone powder to fly out, it also crushes the material mainly through multi-stage crushing and grinding in the crushing chamber. The fineness of the material is small, and the powder is easy to fly out during operation.

2. In the process of impact crushing, the dust volume of the impact crusher not only increases, but also the impact plate will be worn after long-term impact, or the impact plate surface will fall off, which will greatly reduce the sealing of the impact crusher and increase dust pollution.

3. When the impact crusher crushes the material, it is completed by multi-stage crushing and grinding in the crushing chamber. The fineness of the material is small, and the powder particles are easy to fly out during operation.

Methods to solve the problem of excessive stone powder:

1. When using, the user can equip it with dust removal equipment or add a closed cover. You can also add a small amount of water before the material enters the feed port of the impact crusher to wet the material or directly add a dust removal humidifier to cooperate with the work.

2. You can regularly check the various parts of the equipment, such as the sealing of the lining plate and the machine casing and whether the screws at the connection of each device are loose. Regular maintenance and repair of the machine will greatly reduce the amount of dust and improve work efficiency.