Why can't coal slurry pumps use ordinary diaphragm pumps?
Thread Content
In the Texaco gasification process, there is a high-pressure coal slurry pump. The material transported is coal slurry. The coal slurry concentration is about 60%, the solid particles are less than 5 mm, the inlet pressure is 0.12, the outlet pressure is 9.6, the temperature is 60 degrees, and the flow rate is 53 cubic meters per hour. The fluctuations in outlet flow and pressure are required to be small, because fluctuations in flow and pressure may cause the gasifier to shut down. Nowadays, Philoi's hose diaphragm pumps or Qihao diaphragm pumps are generally used. Can other diaphragm pumps not meet the requirements? Can you tell me if you know anything about it?
It should be mainly due to the different material of the diaphragm! And the outlet pressure of a general diaphragm pump cannot reach 9.6!
We have an imported LEWA1 diaphragm pump here. The medium is urine, the pressure is 9.0MPa, the flow rate is 13m3/h, the diaphragm diameter is 120, the material is PTFE, and the operation cycle is quite long. My main consideration is the material of the diaphragm.
Wow, the flow rate of your metering pump is very scary, 13M3/H, and the pressure is so high. What is the unit of diaphragm diameter? ? ? Please make it clear, generally the flow and pressure are hydraulic.
The main reason is that the pressure is high and the requirements on the diaphragm are very high. It also contains solid particles. Generally, metering pumps are not satisfactory.
Talked about on the first floor: Nowadays, Philoi's hose diaphragm pumps or Qihao diaphragm pumps are generally used. Can other diaphragm pumps not meet the requirements? Can you tell me if you know anything about it? -------As an international brand, it has a long installation time and a lot of use performance. In addition, it is designed and run on a single unit, so it is natural to choose it more. It doesn’t have to be imported. Low-pressure coal slurry pumps are now basically made in China, and high-pressure pumps also have domestic products. Users of products from Chongpump, Dalong and Shenye also had good responses. Diaphragm pumps were first used in production plants with slurry materials, such as metallurgy and mining. Coal chemical industry is just the optimization and extension of application. So, don’t take it too mysteriously.