NICK baler analysis of the main factors influencing the hydraulic valve sealing performance

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NICK baler analysis of the main factors influencing the hydraulic valve sealing performance

Packing element damage is the main factors of the impurity in the working fluid.These impurities grinding between the sealing element, make the leak valve.Abroad, therefore, has put forward the corresponding grades of hydraulic components, should adopt the corresponding precision filter.They think the pump seal components (including 5 M, if the filtration precision is 3 / (including M filter, longevity 10 times higher than using (including 10 M.

But with valve hydraulic support, the work environment is very bad.In the mining face, tubing length of more than 1000 meters, joint pin up to more than 4000, tank no special dust-proof facilities.Emulsion in a large number of floating impurities, at the bottom of the cylinder and valve chamber, leaving more of pulverized coal and rock grains and iron filings.Into the liquid valve core and valve seat, because open shutoff is frequent, high liquid velocity, seal failure soon.Proved less support liquid of hydraulic system pollution of impurities, it is very difficult, someone once envisaged in the emulsion pump station adopts high pressure filter, in each bracket inlet at the same time increase the small filter.But was quickly blocked in the work, form.

On the other hand, with the development of hydraulic support technology.The use of valve performance and valve life put forward higher requirements.At present, when equipped with 120 mesh filters and magnetic filter conditions, the total capacity of emulsion by testing valve and valve opening and closing times, to the life of the metering valve.But in fact indoor type testing and downhole working results vary widely.Now many countries in the form of the experiment, increased the anti pollution for, have a plenty of mixed with appropriate coal powder in the emulsion, have a plenty of joining mechanical impurities.

This machine use two-cylinder balance compress. The special hydraulic system make the power more stable.

Specially used for compressing all kinds of nature fiber like palm fiber, coir fiber etc

High load structure make it safe and reliable. It uses pillar type pump with high flux.

Its door can all open. And the machine can pack materials be cross.

It use manual valve control

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