Problems with the gasification slag pool pump
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In Texaco’s water-coal slurry gasification process, the slag pool pump used for gasification is particularly prone to clogging; it has to be disassembled and cleaned every time. Are there any effective ways to reduce the occurrence of clogs in this pump?
A larger pump body can be used, with the impeller changed to an open type.
Solve the problem at its root: First, check for any leaks between Chamber 1 of the slag tank and Chamber 21； Next, determine whether there is internal leakage in the slag pool overflow valve ； Secondly, it is whether the amount of slag is too large; before all the slag has been removed, the relief valve opens, allowing the slag to enter the second chamber
Hello, could you provide some photos of your current equipment? Or information such as the amount and size of debris; generally, for such pumps, it is best to choose a special impeller design to prevent blockages. I am from EGGER in Switzerland, a specialist in slurry pumps, and I can provide you with experience from similar applications abroad.
Noting the issue with the sludge pool pump, I’d like to ask: what is the normal flow rate of your sludge pool pump?
The sludge pool pump in our factory has a centrifugal flow rate of 125 cubic meters per hour, a head of 51 meters, a power rating of 45 kilowatts, and a rotation speed of 148 revolutions per minute; it is a variable-frequency speed control pump.
The pump was designed for clean water, but in reality there is a large amount of slag. An effective solution is to reduce the amount of slag that is carried in with the overflow flow. Previously, we had to open the clean water tank behind the slag removal mechanism every two weeks to clean it out, which was time-consuming and labor-intensive. Later, we raised the position of the overflow pipe and extended the time during which the overflow valve remains open; as a result, things improved significantly – it is now sufficient to clean it once per cycle when the machine stops operating