Vibrating screens can be applied in many industries, such as mining, construction, chemical, pharmaceutical, food processing, etc. The following are some common applications of vibrating screens:

1. Mining: Vibrating screens can be used to screen materials such as ore, coal, limestone, etc. to ensure the quality and purity of the materials
2. Architecture: The vibrating screen can be used to screen building materials such as concrete, sand, and stones to ensure the quality and uniformity of the materials.
3. Chemical industry: Vibrating screens can be used to screen chemicals, coatings, paints, pigments, and other materials to ensure the quality and purity of the materials.
4. Pharmaceutical: The vibrating screen can be used to screen materials such as drugs, vaccines, and syrups to ensure the quality and purity of drugs.
5. Food processing: The vibrating screen can be used to screen materials such as flour, sugar, starch, and milk powder to ensure the quality and uniformity of the materials.

Rotary vibrating screen is a commonly used screening equipment, which can separate granular materials according to particle size. Aluminum powder is a common metal powder that can be sieved through a rotary vibrating sieve.

The working principle of the rotary vibrating screen is to make the granular material roll, jump and collide in the screen hole under the action of gravity through the vibrating screen, so as to realize the screening of the material. For fine particles such as aluminum powder, it is necessary to use a sieve with a smaller sieve size for sieving to ensure the separation effect.

During the sieving process, attention needs to be paid to controlling the sieving time and amplitude to avoid particle breakage and loss caused by excessive vibration and excessive sieving time. In addition, it is necessary to keep the screen clean and clean the particles blocked by the screen in time to ensure the screening efficiency and accuracy.

In short, the use of rotary vibrating sieves for aluminum powder sieving requires the selection of appropriate sieves and control of sieving conditions to obtain a good separation effect.

1. The quality of the screen is an important factor that causes the screen to break too quickly. If the material of the screen does not meet the screening requirements of the material, the screen will be damaged quickly.　　
2. The screen generally has an upper screen layer and a lower stress layer. The two layers are required to be closely attached. If the pre-tensioning process of the screen is poor, when the stress layer at the bottom of the screen is tightened, the screen If the stratification is not tightened, the vibration distance of the screen when the screen is working is too large, and the part in contact with the screen frame cannot be compressed, which is also one of the reasons for the rapid damage of the screen. In addition, the tension of the screen is not enough, which causes the screen to vibrate, which is usually broken or damaged along the edge of the screen or at the edge bead.
3. The feeding problem of materials. Because the vibrating screen is constantly feeding, if too much material is fed at a time, it will hinder the normal movement of the material on the screen, which will not only easily loosen the screen, but also greatly reduce the processing capacity of the material. Giving a large amount of materials at one time will cause the load of the motor that is in unbalanced operation to increase suddenly, which not only easily damages the screen, but also easily damages the vibrating motor. Therefore, the materials must be fed evenly when placing the materials. In the feeding method with strong impact force, the vibrating screen must be equipped with a buffer hopper. The direct impact of the material on the screen will consume the exciting force generated by the vibration source, which is more likely to cause the screen to be damaged.

In the flour and instant noodle industries, the vibrating screen is mostly used for impurity removal and loosening. The direct-row sieve is often used, and the direct-row sieve is directly discharged. The output is large and it is easy to cooperate with the upper and lower processes. 1000mm type sieve machine with 12 meshes is used for screening and removing loose wheat flour when making instant noodles, which can reach 350Kg/150 seconds. There are also cases where rotary vibrating screens and linear screens are used. The material of the screen machine is generally required to be made of 304 stainless steel for the part in contact with the material, and some are made of all stainless steel.

1. Magnet identification
The 304 stainless steel commonly used in stainless steel vibrating screens will not have adsorption force when using a magnet, while the inferior 201 stainless steel magnet will have a slight adsorption force if it is near.

2. Identification of finish and brightness
After polishing the 304 stainless steel, the surface of the screen is smooth and tidy, while the inferior 201 stainless steel will have some pitting and dark spots on the surface of the vibrating screen after polishing.

3. Identification of chemical potions
Different materials of stainless steel can be quickly distinguished through chemical potions. Specific usage methods:
Put 1~2 drops of stainless steel identification liquid on the material to be tested, wait for a few seconds, the display effect: (such as stains on the surface of the stainless steel, and the coating must be cleaned before testing)
1) 201 stainless steel, the droplet instantly turns dark brown red;
2) 304 stainless steel, droplets do not change color within 3-5 minutes.

The conveying distance of a screw conveyor can be determined based on a variety of factors, including the design and specifications of the screw conveyor, the nature of the material being conveyed, the conveying angle, and the support structure used. Generally speaking, the conveying distance of screw conveyors can range from a few meters to hundreds of meters.

For short conveying distances (within tens of meters), the screw conveyor can usually be installed directly on a support structure, and the motor drives the screw to rotate to transport the material along the pitch direction of the screw.

For longer conveying distances (hundreds of meters), more complex designs and configurations may be required. A common practice is to segment the screw conveyor into sections, usually 10 to 20 meters in length, and then connect the sections through bearings and couplings. This reduces stress and vibration on the entire system and makes maintenance and installation easier.

In addition, in order to support longer distance transportation, additional support structures may be needed, such as pipes, support frames, etc. The design and installation of these structures also need to be considered on a case-by-case basis to ensure the stability and safety of transportation.

It should be noted that the conveying distance of the screw conveyor is too long, which may affect the conveying capacity and efficiency. For longer conveying distances, the fluidity and accumulation of materials also need to be considered to avoid clogging and accumulation.

Therefore, the specific maximum conveying distance of the screw conveyor needs to be evaluated and determined based on the requirements of the actual application and engineering design.