Holk type shaker screen is the most popular type shaker screen , it will be one to three layers of screen mesh . The hookstrip welded on screen panel end for installation , the screen panel will be tensioned on shaker deck and locked by bolt or channel lock . The shaker deck has to be crowned to allow maintain screen .
- The shaker screen cloth is pasted by glue directle to the screen frame , there will be 1 to 3 layer depending on requirement , The additional glue lines will be include between frame members and for provide additional support .
- This holk type screen design is a good design to maximized usable screen area . But there will be a larger area that unsupported which will limit cloth selection , so the panel will not considered to repair .
- The screen mesh cloth can be bonded to a perforate back metal plate which looks like a hook strip screen .
Screen Blinding and Plugging
The shaker screen blinding will happen when grains of solids lodge in the screen hole , This will happen very often when there are a lot fine solids , It will be happened during shaker screen blinding .
- During drilling fluids circulation , the fine solids drop through the screen in a very short distance when a new shaker screen installed .
- Then the fluids endpoint will move to the end of shale shaker deck .
- If this happen , the shaker screen will be changed to allow rapid drilling mud discharge .
- The shaker screen will be need washed , then the fine and that lodged in the screen hole serface can be seen .
GN Solids supply different kinds of shaker screen including hook type shaker careen and wedge type shaker screen .