clogged pipes
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The material storage tank is a suspension of barium sulfate and sulfuric acid with a solid content of 30%. The temperature is about 30 degrees. It is pumped into the filter. The sulfuric acid flows into the clear liquid tank through the filter. The barium sulfate is intercepted. There are currently two problems. First: due to the large amount of material, the filter is small. The material needs to be pumped into the filter three times, and the interval between each time is long, so the pipe under the material tank is often blocked and needs to be dismantled every time. Second: the filter filtration effect is not good, and it needs to be purged with compressed air after each filtering. It takes a long time. Do you have any good tips?
If the pump is not clogged without stopping, then cycle at the minimum flow rate. Just a waste of energy
But when the filter is full and the filter cake needs to be blown, how to suppress the positive blowing if the pump does not stop?
What do you want mainly, barium sulfate or sulfuric acid? The purpose of allowing you to circulate is to avoid clogging of the inlet pipe.
If the pump doesn't stop, there's no way to blow it properly.
Is there any stratification phenomenon when the two materials are at rest?
Add a sedimentation tank and a filter press, cancel the filter, and let the slurry stand in the sedimentation tank to stratify. The lower mud is pumped into the filter with a mud pump. The mud pump is flushed with water or supernatant after each use, so that there is no blockage problem.
1. The filter before the pump is just a pipeline filter and cannot be used as a serious filtering equipment. But it’s a good way to save money. 2. Or add a filter before entering the tank or add a serious filter after the pump. Extend the filtration time by increasing the accuracy and cross-sectional area.
Should the filter be changed to a filter cake type filtration method?! Or as the previous expert said, filter through a sedimentation tank first?! Or pass through several filters at the same time to avoid insufficient flow rate and sedimentation obstruction. As for the poor filter effect, you should first understand the approximate particle size of the suspended particles in the filtrate, and then choose an appropriate filter for filtration... The above opinions are provided for sharing.