Dewatering effect of dewatering screen
Writer： admin Time：2020-09-17 11:33 Browse：℃
What are the factors that affect the dewatering effect of the dewatering screen? Let's understand together with the polyurethane screen manufacturer: High-frequency vibration dewatering screen is an indispensable high-efficiency dewatering equipment in today's mining industry. It has low investment cost, good dewatering effect, convenient operation, long service life, and high screening efficiency. The advantages of high economic efficiency have won the favor of the majority of users, thus becoming a more popular dehydration equipment. However, in the use of high-frequency vibrating dewatering screens, many users will encounter the poor screening effect of the machine. So what causes the poor screening effect of the high frequency vibration dewatering screen? How is the screening effect of the high frequency vibration dewatering screen affected?
1. The physical properties of the screened materials
includes the particle size composition, humidity, mud content and particle shape of the material itself.
When the material content is large, the productivity of the sieve is also large. When the humidity of the material is high, the screening efficiency will generally decrease. However, the larger the mesh size, the smaller the influence of moisture. Therefore, for wet materials with larger moisture content, in order to improve the screening process, generally the method of increasing the mesh size or wet screening can be adopted. Materials with large mud content (when the mud content is greater than 8%) should be wet screened or washed in advance.
2. The nature of the screen surface and the influence of its structural parameters
vibrating screen makes the particles and the screen surface move vertically, so the screening efficiency is high and the production capacity is large. The relative movement of particles and the screen surface is mainly parallel-moving bar screens, plane vibrating screens, drum screens, etc., and their screening efficiency and production capacity are low.
For a certain material, the productivity and screening efficiency of the screen are determined by the size of the screen hole. The productivity depends on the width of the screen surface, which is high in productivity. The screening efficiency depends on the length of the screen surface. The long screen surface has a high screening efficiency. Generally the aspect ratio is 2.
The larger the effective sieve area (that is, the ratio of the sieve area to the entire sieve surface area), the higher the productivity per unit area and the screening efficiency of the sieve surface.
The larger the mesh size, the higher the productivity per unit screen surface and the higher the screening efficiency.
3. The influence of production conditions
When the load of the screen is large, the screening efficiency is low. To a large extent, the flat rate of the sieve depends on the size of the sieve hole and the total screening efficiency; the larger the sieve hole and the lower the required screening efficiency, the higher the productivity.
In addition to the above factors, the uniform feeding, the inclination of the sieve, and the amplitude and frequency of the sieve will all affect the screening effect of the high-frequency vibrating dewatering screen. Therefore, if the majority of users want the equipment to have a good screening effect, the polyurethane screen The manufacturer recommends that the majority of users choose the appropriate type of equipment according to their own production conditions, and the second is to feed evenly. For more information about high-frequency vibration dewatering screens, please consult Chaishang Trading Company.
