In engineering fields such as oil drilling, geological exploration, and pile foundation construction, mud treatment is a key link to ensure construction efficiency and safety. 

As the core equipment for solid-liquid separation of mud, the performance of the core component of the mud vibrating screen - the screen mesh - directly determines the mud purification effect,

 drilling progress, and even construction cost. During drilling operations, construction teams often encounter problems such as frequent screen clogging, poor wear resistance, 

and incomplete mud separation. These issues not only lead to a decrease in the mud recycling rate but may also affect the service life of drilling equipment due to excessive solid particles, 

and even cause construction safety hazards. Today, we will provide a detailed dissection of how to select and utilize this key component of the mud vibrating screen mesh from aspects such as its scene adaptability, material selection, key selection points, and daily maintenance, to make mud treatment more efficient and construction smoother.

The most significant difference between the screen mesh of a slurry vibrating screen and that of a regular vibrating screen lies in the fact that it needs to handle slurry environments 

with high viscosity, high sand content, and corrosive media. Therefore, the selection of materials is particularly crucial. At present, the screen materials suitable for mud treatment scenarios 

on the market mainly include three types: polyurethane material, stainless steel material and composite material. Polyurethane material mud vibrating screen mesh, 

with its excellent elasticity and wear resistance, has become the preferred choice for most wet drilling scenarios. Its surface is smooth and has a certain degree of flexibility, 

making it difficult for solid particles in the mud to stick together, effectively reducing the clogging of screen holes. At the same time,

 polyurethane has strong impact resistance and is less likely to tear or break when impacted by gravel and rock cuttings mixed in the mud. 

The service life can reach 1.5 to 2 times that of ordinary metal screens. More importantly, polyurethane material is lightweight, 

which can reduce the operating load of vibrating screens and lower equipment energy consumption. It is particularly suitable for oil drilling platforms that operate continuously for a long time. 

However, it should be noted that if the mud temperature is relatively high during the drilling process (exceeding 80℃), high-temperature resistant modified polyurethane material should be selected to prevent the screen from softening and deforming due to high temperatures, which may affect the separation effect.

The stainless steel material of the mud vibrating screen mesh is more suitable for mud scenarios containing corrosive media, such as dealing with mud containing acidic minerals in geological exploration or dealing with seawater mud with high salt content in Marine drilling. 

The common 316L stainless steel material can resist acid and alkali corrosion as well as seawater erosion, preventing mud leakage caused by rust and damage to the screen. Meanwhile, the screening accuracy of the stainless steel screen is stable, capable of precisely separating solid particles with a diameter of 0.1-2mm, ensuring the purity of the circulating mud. However, stainless steel screens also have limitations. They are relatively rigid and prone to local deformation when subjected to the impact of larger particles in the slurry, resulting in an increase in the size of the screen holes and affecting the separation accuracy. Therefore, when in use, it is recommended to design a buffer layer or choose a stainless steel screen with a thickened mesh surface to enhance the impact resistance.

In addition to single-material, composite material mud vibrating screen mesh has gradually become a new choice in the industry. For instance, 

the screen mesh made of polyurethane and stainless steel has a polyurethane material on the surface to resist adhesion and wear, and a stainless steel frame at the bottom to enhance support. 

It can not only deal with the clogging problem of high-viscosity mud but also resist the impact of large particles, making it suitable for complex drilling conditions. However, 

the cost of this type of composite screen is relatively high. The construction team can flexibly choose based on the characteristics of the slurry, the operation cycle and the budget.

After choosing the right material, the selection of the screen mesh for the mud vibrating screen also needs to be combined with specific construction requirements, 

paying attention to three core points: screen hole size, mesh matching and structural design. 

The determination of the sieve hole size should be based on the target separation particle size of solid particles in the mud. For example,

 in oil drilling, if it is necessary to separate rock cuttings with a particle size greater than 0.3mm in the mud, a sieve with a sieve hole size of 0.3mm should be selected. If the sieve hole is too large,

 it will cause coarse particles to remain in the circulating mud, accelerating the wear of the drilling pump and drill pipe. If the sieve holes are too small, it will lead to excessive retention of fine particles, increase the frequency of screen clogging, and reduce the efficiency of slurry circulation. At the same time, the viscosity and flow rate of the mud should also be taken into account. For high-viscosity mud, it is recommended to choose a slightly larger screen hole and pair it with an inclined installation vibrating screen to utilize gravity to assist the flow of the mud and reduce clogging.

Although the screen mesh of the mud vibrating screen is small, it is the "throat" component of the mud treatment system. 

Choosing and using the screen mesh correctly can not only improve the mud recycling rate, reduce the cost of drilling fluid procurement, 

but also reduce equipment wear and ensure construction safety. During use, carry out installation checks, daily cleaning and regular replacement to keep the screen in good working condition at all times.

If you encounter any problems in the selection and maintenance of the mud vibrating screen mesh, or need to customize a special screen mesh according to specific drilling conditions, 

you can contact us at sales@adkosun.com at any time