What is Desander

Desander is solids control equipment with a set of desander cyclone to separate sand from drilling mud in drilling rigs&peroid; Desander is installed on top of the mud tank following the shale shaker and vacuum degasser but before desilter&peroid; The desander removes the abrasive solids around 45-74 micron&peroid;

Desander Equipment In Solids Control System

A desander is the second phase cleaning for a whole solids control system, It sit on mud tank for separate drilling cuttings 47-76 micron and above by centrifugal force. The untreated mud will feed into desander cone at the horizontal inlet at pressure, the pressure and weight will help solids particles moving beside cone wall and drop down, fluids particles will be press on top and over flow away through pipeline. There can be a shaker to collect solids particles from desander nozzle or drop onto a hoper directly.

Desander Options Depending On Downstream Shale Shaker

Desander Options Description
Desander Desander Desander Without Downstream Shale Shaker
Model APCS120,APCS240,APCS360
Application Oil&Gas drilling mud treatment
◆ Wet Solids                ◆ Economic Budget
◆ Mini Footprint
Desander with shale shaker Desander Desander With Hunter Mini Shale Shaker
Model APCS120-M,APCS240-M,APCS360-M
Application Piling,HDD,Oil&Gas Drilling
Features ◆ Acceptable Solids         ◆ Economic Budget
◆ Small Footprint
Desander with mg shaker Desander Desander With Hunter D3/MG4 Shale Shaker
Model APCS120-D/MG,APCS240-D/MG,APCS360-D/MG
Application Oil&Gas Drilling,CBM,Piling,HDD
Features ◆ Dry Solids                ◆ Expensive
◆ Large Footprint

Desander Technical Parameters

Model APCS120/240/360 APCS120/240-M APCS240/360-D3 APCS240/360-MG4
Capacity (m³/h) 120/240/360 120/240 240/360 240/360
Desander Cone 10"
Cone Qty 1 Pcs/2 Pcs/3 Pcs
Working Pressure 0.25-0.4Mpa
Separation Point 47-76 Microns
Inlet 6"
Outlet 8"
Bottom Shaker Model N/A Hunter Mini Hunter D3 Hunter MG4
Vibration Mode Linear Motion
Vibrator Motor 2×0.75Kw 2×1.72Kw 2×1.72Kw
G Force ≤7.5G
Deck Angle  2°  -1 - +5°
Screen Area 1.35㎡ 2.27㎡ 2.73㎡
Screen Panel 2 Pcs 3 Pcs 4 Pcs
2150×1000×1900 1680×1760×1850 2400×2000×2200 2640×2100×2200
450/500/550 1050/1140kg 1800/1890 1900/1990

Features Of AIPU Desander

  1. 100% Polyurethane(PU) Material for desander cones with longer using life.
  2. Clamp type for easy maintenance.
  3. Compact design with small footprint.
  4. Flexible options for 1 or 2,or 3 for different capacities.
  5. Different size of downstream shale shaker for option.
  6. Flexible fast connection are available for user friendly assembly.
  7. Tangentially blended into the cone entry as a narrow rectangle to minimizes turbulence in the upper section of the cone, allowing the solids to move quickly to the cone wall.

Desander Plant For Bored Pile

Desander plant for bored pile require high mud flow with limit footprint and budget, it is mud recycling only with very limit mud storage capacity. AIPU supply various models of desander for mud flow 60 m³/h, 120 m³/h,240 m³/h with one set of double deck shale shaker, centrifugal pump, desander cyclones and a small mud tank. The double deck shale shaker work as first phase and second phase mud separation. The raw mud will be feed into bottom deck shaker with a coarse mesh screen for separate larger solids particles, top deck of screen install fine mesh screen for dry solids out of desander nozzle. There is auto control valve to allow mud over flow from desander drop into tank bellow shaker or over flow to next storage mud tank. There are some details introduction of desander plant in mud system page.