The Best Pump for Moving Heavy Slurry

Applying a Slurry Pump to Heavier Slurries

When pumping heavy slurries it is critical to maintain a constant flow through the pipeline, the flow of the material must flow at a specific rate given the type of slurry material that is being pumped.  The specific velocity of flow can be measured in feet per second.  The continued movement of the material through the pipeline assists with avoiding settling at the bottom portion of the piping. Applying the pump correctly requires pre-planning and determining what the critical flow rate must be given the heavy slurry material being pumped.

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The critical flow rate is also defined as a flow that involves turbulence, or is described as turbulent, not laminar.  In this regard, critical flow rate is relational to the specific velocity of the fluid that achieves a turbulent flow.  This turbulence of the fluid is important to avoid settling of the material in the pipeline.  Critical velocity changes due to the density and coefficient viscosity of the fluid.  Although determining critical velocity of a heavy slurry is beyond the scope of this article, it is important to note that the EDDY Pump is designed to produce a turbulent flow due to the unique design of the rotor.  Traditional pumps in slurry applications, such as centrifugal pumps, produce a laminar flow which is counterproductive and one reason they are not as well suited for heavy slurry applications as an EDDY Pump.

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Camdigger said:

So... what kind of rig capability did you build? There are rigs around that drill water wells with centrifical trash pumps. More serious rigs can have duplex plunger "slush pumps". I don't have brands that would mean anything to you, but if you're interested PM me an address, and I'll send you some pictures of some rigs - some homebult - others commercially available.

Personally, I would only consider a trash style pump that could handle sand recycled in the fluid.

A lot of wells are drilled without shakers, using only pits. Most successful operations have a two compartment pit. The return flow is directed into the first compartment, then over a low weir, then the pump sucks from the cleaner second pit.

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Hello,

Here is where I am at on this whole project:
IU have my prototype done. I predict it will drill over 200 ft given the right drill stem. I have a trash pump that will work on this unit for a few wells if I use a settling pan. I plan on using a feed troph and a divider in it for settlement. I will use bentonite in the mud. This will wear this type of pump out fast. I looked at a dredging pump from AMT and a semi trash from Flowtec. In the end, It looks like the flowtec with a pressurised grease seal is the best choice. In my research I found that Vermeer and Ditch Witch use them on there boring rigs.
I now have a 21 HP gas engine driving a 1.83 CI hydraulic pump. The engine is a bit undersized but because only one motor really pulls that much flow at any one time, it will work very well. Of course, I already have some refinements on it to make and this is a prototype. The next one that I plan will use all the same concepts but will have many refinements---27 HP. on board mud pump driven by a hydraulic motor, nicer control center, larger fluid container and a bit heavier pillow blocks. I will continue to use the 8 HP motors for drill head and chain hoist.
This unit is portable in that it can be mounted on many different trailers, even on the back of a full bed pick up truck. It weighs in at about pounds and folds down. It can use 5 to 7 ft drill stem but if it works well, I can produce this same type up to 20ft.
The swivel will be a big question? I made it from scratch with two sealed ball bearings, DOM tubing of different sizing, large washers, 1.5 inch black pipe and graphite PTFE packing with grease fittings. It held well against a 100 PSI air))
My drill head has 4-# drill head frame guides, # thrust bearings for lift up and push down, No 80 drive chain and more. The lift capacity is over # but I will rate it at the chain working strength of .
So much more but you get the idea?
More input the better.

Gray

Hello,Here is where I am at on this whole project:IU have my prototype done. I predict it will drill over 200 ft given the right drill stem. I have a trash pump that will work on this unit for a few wells if I use a settling pan. I plan on using a feed troph and a divider in it for settlement. I will use bentonite in the mud. This will wear this type of pump out fast. I looked at a dredging pump from AMT and a semi trash from Flowtec. In the end, It looks like the flowtec with a pressurised grease seal is the best choice. In my research I found that Vermeer and Ditch Witch use them on there boring rigs.I now have a 21 HP gas engine driving a 1.83 CI hydraulic pump. The engine is a bit undersized but because only one motor really pulls that much flow at any one time, it will work very well. Of course, I already have some refinements on it to make and this is a prototype. The next one that I plan will use all the same concepts but will have many refinements---27 HP. on board mud pump driven by a hydraulic motor, nicer control center, larger fluid container and a bit heavier pillow blocks. I will continue to use the 8 HP motors for drill head and chain hoist.This unit is portable in that it can be mounted on many different trailers, even on the back of a full bed pick up truck. It weighs in at about pounds and folds down. It can use 5 to 7 ft drill stem but if it works well, I can produce this same type up to 20ft.The swivel will be a big question? I made it from scratch with two sealed ball bearings, DOM tubing of different sizing, large washers, 1.5 inch black pipe and graphite PTFE packing with grease fittings. It held well against a 100 PSI air))My drill head has 4-# drill head frame guides, # thrust bearings for lift up and push down, No 80 drive chain and more. The lift capacity is over # but I will rate it at the chain working strength of .So much more but you get the idea?More input the better.Gray

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