Desilter Cyclone Working Flow and Matching Spare Parts

Cyclone is the main parts of drilling mud solids control desander and desilter. Generally, desander and desilter is mainly composed of cyclones and shaker base. There is one unit called mud cleaner which combines desander and desilter playing the common role of desilter and desander.

Most of the solids control manufacturers are able to produce cyclones in domestic solids control industries. Made of cast iron or PU material, desander and desilter are required to be abrasion resistance and are able to separate solids particles with D50, namely if D 50 is lower, the separation effect of desander and desilter is better. Do pay attention to the problems that separation points between desander and desilter should not be too far or too close. Generally, when the inner diameter is between 150mm and 300mm separation points between 74 and 44 um, it probably is desander. While when the inner diameter is between 100mm and 150mm separation points between 44 and 15um, it probably is desilter.

However, in practical drilling processing, desander and desilter are usually used by mistake on the solids phase diameter separation extent. Drilling mid is processed by desander again processed by desilter, which cause desilter doesn’t play the role of proper separation effect. This is account from the unqualified production level and standard and finally led to unsatisfied separating efficiency.

Base on the above described problem, many purchasers choose 2 drilling mud desander instead of one desander and one desilter. Even some users simply install one desander in the position of desilter installation. This is supposed to be improper practice. If two desanders are used by the same parameters, they should be set in parallel construction in case of emergency circulation. But reasonable assembly solution is one desander and one desilter are installed together with series connection. Above all, desilter and desander should be set with different extent of separation points.