Daily Storage Methods for DTH Drilling Tools
Key Points for Drill Pipe Storage
First, blow out the drill pipe to completely remove any residual moisture inside. At the same time, turn on the shank lubrication system. Proper lubrication is achieved when shank oil can be clearly seen seeping out from the bottom of the drill pipe.
Thoroughly wipe the entire outer surface of the drill pipe, including threaded sections and the rod body, to ensure there is no oil sludge or debris. Fit rubber protective caps on both male and female thread connections to prevent contaminants from entering. Although these caps are small and inexpensive, they are highly effective in reducing impactor failures caused by contamination and in extending equipment service life.
Storage and Recommissioning Guidelines for the Impactor
I. Short-Term Storage Procedure
Use compressed air to remove all internal moisture from the impactor and prevent corrosion caused by humidity.
Add 1 liter of shank oil through the top sub to establish internal lubrication.
Blow air through the impactor for about 10 seconds so the oil can fully coat all internal components.
Following the same standard as drill pipe storage, fit rubber protective caps on both top and bottom subs for sealed protection.
Store the impactor horizontally in a dry, well-ventilated area to avoid moisture exposure.
II. Long-Term Storage Procedure (Key Differences from Short-Term Storage)
Blow out the impactor thoroughly to remove residual internal moisture.
Loosen the top and bottom subs and disassemble the impactor.
In a clean indoor environment, inspect and wipe each internal component one by one to avoid secondary contamination during cleaning.
Apply suitable lubricant to all parts in an appropriate amount to form a protective oil film.
Reassemble the impactor after lubrication and install rubber protective caps on both ends for sealing.
Store the assembled impactor horizontally in a dry location and check ambient humidity regularly.
III. Impactor Recommissioning Procedure
Disassemble the impactor and perform a full inspection of all internal components. If oxidation is found on part surfaces, lightly polish the affected areas with sandpaper to remove the oxide layer. Skipping this inspection and using the tool directly can easily cause premature failure and reduced performance.
Clean and wipe all parts thoroughly. After surfaces are dry, refill with suitable lubricant.
Reassemble all cleaned and lubricated components according to standard procedure. After confirming assembly accuracy, the impactor is ready for use.
