1. The screened materials are flammable and explosive powders: magnesium powder, aluminum powder, zinc powder, sulfur powder, etc.;
2. When the screened materials need to be protected by inert gas during the production process, such as: carbonyl nickel powder, iron powder, tin powder, etc.

There is a qualitative difference between dust explosion-proof vibration motors and gas explosion-proof vibration motors, and their requirements and standards are different. The material screened by the customer with the vibrating screen is flammable and explosive powder or electrostatic explosion or dust explosion, etc., and dust explosion-proof vibration motor is required. When the customer specifies that a dust explosion-proof vibration motor is required, gas explosion-proof is not a substitute; however, due to the small market value of dust explosion-proof vibration motors, the ordering period is long, and many manufacturers use gas.

Use cases: aluminum powder, zinc powder, magnesium powder, sulfur powder, etc.

1. First, choose a reliable screen when choosing a vibrating screen; 　　
2. Check the tension of the screen frequently; check whether the screen is compacted.　　
3. If it is to screen liquid, add a hopper or a buffer when there is a strong impact force.　　
4. If there is material accumulation, find out the cause as soon as possible, such as adjusting the eccentric block of the vibration motor.

The vacuum feeder will experience pipeline wear after a long time of use, so what causes this situation, let's talk about it in detail below.
1. particle strength some materials in the process of transport in the pipeline, will bump against each other, some materials will be relatively hard, so will wear the pipeline.
2. In terms of the speed of transportation, materials also have wear in response to the pipeline. As the speed is fast, those that are worn will wear the pipeline.
3. Impact Angle, the collision Angle is the included Angle between the trajectory of the incident particle and the object appearance, which will also wear the pipe.

1. The thickness of the screen frame plate
Some manufacturers will choose some thinner materials when making, so that it will be easy to break during use, which will affect its normal use.

2. The welding is not firm
When the screen frame is not firmly welded, it is easy to break during use, so the equipment will not run smoothly during operation, which will affect the screening effect.

3. Exciting force is too large
Although the excitation force can be adjusted, the user may adjust the force too much, which may cause a break during operation. Therefore, it needs to be adjusted appropriately, not too large.

1. Rubber material
Rubber seals are widely used, but they are rarely used in the food and chemical industries, because the rubber itself has certain pollution components to the material, and the rubber is easy to fall off during screening, which will seriously affect the quality of the material, but its price Low and strong wear resistance, users should install suitable seals according to the different requirements of materials when purchasing a vibrating screen.

2. Polyurethane material
Polyurethane materials are usually used in mine screens and feeder linings. Rotary vibrating screens are rarely used as seals to prevent dust. However, seals made of polyurethane materials are also more common in mining environments. Polyurethane is more Silicone and rubber materials are more wear-resistant, but the hardness is higher.

3. Silicone material
The color is milky white, and its softness is good, so it has good dust-proof effect in the sealing material, and has good dust-proof effect for screening starch and mud powder in high-polluting environments. Dahan manufacturers recommend that users should try their best when choosing a vibrating screen. Choosing silica gel material as the best choice for dust prevention, although the cost is higher, the actual value is much higher than the other two materials (especially in the food and pharmaceutical industries).

1. When working outdoors, the circular vibrating screen should be built with a sun screen or awning.
Long-term exposure to the hot sun will not only make the machine easy to wear and aging, but also make the temperature of the circular vibrating screen too high and unable to work normally, affecting the efficiency and quality of the screening, and severely will cause the vibrating screen components such as vibrating motor And other damage.

2. For circular vibrating screens that work indoors or in mines, attention should be paid to the adjustment of indoor temperature, as well as ventilation and air permeability. The ambient temperature generally does not exceed 40°C, to maintain a good working environment for the vibrating screen.