Slurry pump, filter press, and coal grinder

I’m not quite sure why the filter press is related to the vacuum pump

What size is your mill? Grout leakage is mainly due to poor sealing, with broken cylinder screws being the primary cause!

The slurry pump hoses that are not furnace tiles always break and leak oil—what is the reason? How should it be solved? This problem is difficult to avoid; hoses always break, and oil leaks are caused by the aging or cracking of these hoses. Generally, it is due to the quality of the hoses, as well as corrosion from coal slurry, friction, and rapid expansion and contraction resulting from movement. Solution: I believe it is necessary to control the pH value, particle size, flowability, stability of the coal slurry, as well as the medium used for the coal. The pump must operate stably. Avoid large fluctuations in pressure; it needs to remain stable… The filter cakes produced by the filter presses in the wastewater treatment plant are sometimes extremely loose – what’s the reason for that? First, rule out the possibility that there is a problem with the vacuum pump and its associated pipelines. The filter cloth is a bit wrinkled, and it remains like this even after being smoothed out. I wonder what the reasons are? How should it be solved? Is this caused by fluctuations in load? When there are no issues with the vacuum pump and its associated pipelines, the possible causes for this situation are 1. a sudden increase in the feed rate, or 2. a thinning of the feed material. 3. Excessively high speed. 3: The bolts on the coal grinder cylinder keep breaking; the large bolts on both sides do not break, but there is constant leakage of coal slurry. I have a question: part of the lining inside the mill is made of rubber and part is made of steel. What are the materials used for each? This is inevitable: to reduce it, I think, it would require either avoiding prolonged overloading or underloading, or avoiding frequent changes in the type of coal used as well as the load level. The particle size varies greatly; failing to replace the rod after a long period of time results in an improper setup. The grinding mill needs to be cleaned regularly. Switch it all to steel, please: loveliness:

Comrade Huitian Jianke, I’m not sure if you work at New Ocean; the questions you asked are all about issues that have arisen recently in the new energy chemicals sector. This is how one should approach learning – I also work in the new energy field.

The damage to the pump’s hose may be caused by hard foreign objects entering the hose; when the pump operates and exerts pressure, these objects damage the hose. It is necessary to strictly control the quality of the coal slurry at the pump inlet to prevent hard foreign objects such as wires and metal pieces from entering.

If the filter cake from the filter press is thin, and its consistency varies irregularly between dry and wet areas, it may be due to damaged filter cloth in those thin areas or uneven feeding; however, low feeding pressure cannot be ruled out either

:(The gaskets are entirely made of steel; if the bolts break at that time, it will be very difficult to remove the gaskets.) The bolts cannot be replaced.

1. The slurry pump hoses that are not furnace tiles always break and leak oil—what is the reason? How should it be solved? A damaged pump hose in a Filuwa pump is generally not related to the pump itself; the problem lies with the coal slurry. After all, the pump has not been in operation for very long. You can check the stability of the coal slurry – it’s definitely caused by clumping of the slurry. This issue was common at Hualu Hengsheng in the past, with hoses needing to be replaced almost once a month. 2. The filter presses in the wastewater treatment plant produce sludge cakes that are sometimes extremely soft – what’s causing this? First, you ruled out the vacuum issue – did you check the vacuum gauge or something else? If the moisture content of the filter cake is high, it’s still a vacuum issue; it’s possible that the hole in the center of the belt is misaligned relative to the vacuum chamber. If the vacuum problem is ruled out, then excessive feeding volume could be the cause, but this can be easily adjusted, so it’s likely not that either. Then the most likely explanations are that, on one hand, the furnace temperature you are using is quite high during this period, and on the other hand, there is a problem with your flocculant. 3. The bolts on the coal mill cylinder keep breaking; the large bolts on both sides do not break, but coal slurry keeps leaking. The constant breaking of the cylinder bolts is due to improper installation of the rubber gaskets; during operation, the steel rods strike these gaskets, which puts stress on the bolts and causes them to break easily. The only reason for leaks is improper installation of the bolts, as these bolts require a certain level of pre-tensioning – using a hammer isn’t sufficient; a hydraulic wrench is needed