Using the cut-off valve, extending the service life of slurry pump
Coal mine excavation engineering, use of mud pump, due to the occurrence of theseplaces in the waste water, has a lot of solid particles and other impurities. Somepumps have no suitable these play with impurities in liquid. So the use is more of amud pump.
Even the recovery team driving production large dust, dust and so even the mining machine is the key. In accordance with the rules, excavation must be continuous mining machine inside and outside spray open production, what happened in spraydeposit more, very simple form of mud pump blocked, usually every cleaning will bemud pump open, time-consuming and difficult, such as not timely collation will damage the mud pump.
Coal machine repair workers for this specific situation, go through the relevant booksand according to the operation experience, in the continuous mining machine spraydischarge tube mounted on a globe valve. When the mud blocking, manual closedstop valve, spray water to delay directly into the mud pump discharge pipe, flushingbrush on the mud pump, washed after the end, open the valve, the sewagedischarged from a drain, simplifies the cleaning work of mud pump, can extend the service life of slurry pump.
Mud pump output is from a number of liters per minute accounting, it with the diameter and the drilling fluid requirements from the hole on the back end of the speed, the larger the aperture, the greater the required capacity. The fluid back to the bit rate can be cut, rock cuttings from the hole bottom red powder in a timely manner, and to reliably bring to the surface. Geological core drilling, usually on the return rate of 0.4 ~ 1 m / min or so.