Seek advice on the reasons why filter press pumps break down frequently
Thread Content
The parameters of the filter pump are 12 cubic meters per minute and a head of 60 meters. The plate and frame filter is located on the second floor, with a system head of approximately 7 meters. After the equipment had been running for ten minutes, the pressure gauge at the inlet of the filter showed a pressure of around 6 KG; at this point, the filter cake was not yet dry and remained relatively wet, so it was necessary to continue operating the equipment. When the pressure gauge shows a pressure of 8 KG, the filter cake is relatively dry. There are two issues: first, why does the filter pump have only a head of 60 meters while the reading on the pressure gauge above reaches 8 KG? Second, will operating at this pressure level of 8 KG affect the sealing life of the filter pump?
The flow rate decreases while the head increases; if you close the outlet valve, the head is even higher when the flow rate is zero.
There’s no flow rate left – is there still head?
If it operates for a long time at a pressure level above the pump’s standard head, is it easy for the seal of the filter pump to get damaged?
We installed frequency converters on the filter press; these converters adjust the speed based on pressure signals, reducing the speed when pressure is high to ensure that it does not exceed a certain level
As the flow rate decreases and the head increases, staying under high pressure for an extended period can affect the sealing performance of the mechanical seal, and the temperature will also rise.