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There’s a pipe blockage issue here; I’d like some advice

2025-03-10View Original

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The entire setup is produced in a discontinuous manner. The material in Reactor A, due to its viscosity, adheres to the reactor walls and solidifies rapidly. Although the reactor is insulated, increasing the temperature does not enable the hardened mass to melt again. Lumps occasionally fall off the reactor wall, causing valve jamming and affecting production efficiency. Methods already tried: increasing the size of the valve pipes, with little effect. Alternative method: Copy a section of the pipeline as a backup and use them alternately; however, this is troublesome due to the frequent need to assemble and disassemble it. Are there any other simple and effective ways? I hope the experts can give some advice. Thank you! Oh, that nitrogen is used to press the material.
Reply #22025-03-10
Consider using an anti-adhesive coating or manufacturing the tank walls from smoother materials to reduce substance adhesion. At the same time, an appropriate amount of anti-caking agent can be added during the process to prevent the material from solidifying rapidly on the walls of the tank. Furthermore, considering installing vibrators on the tank wall could help prevent lumps from falling off and blocking the pipes through vibration. It is also advisable to regularly clean the pipes using steam or hot water in order to keep their interior clean and prevent blockages. .
Reply #32025-03-10
It’s a tough challenge; increasing the diameter doesn’t work. Then check the valve and replace it with one that is more suitable and less likely to get stuck. What kind of valve is being used currently, and what is its diameter?
Reply #42025-03-11
It seems the problem lies in crystallization; can crystal formation be controlled?; A tee is installed under the bottom valve, with nitrogen returning to the top
Reply #52025-03-11
Full-bore ball valves, pipeline polishing, as well as insulation and similar things. Increasing the pipe diameter affects the flow velocity.
Reply #62025-03-11
Where are you in Gansu? I’m in Jiayuguan
Reply #72025-03-12
Pot A is lined with enamel, so it should be quite smooth. How is the coating quality? ? ? There is a weighing module; it might not be possible to add a vibrator. I haven’t tried cleaning the tank walls yet – I’ll give it a try another day.
Reply #82025-03-12
The one above is a ball valve with a PTFE jacket, while the one below is a ball valve with a stainless steel jacket; both are DN80
Reply #92025-03-12
It’s crystalline: ‘(; the black material breaks easily when squeezed, but it still gets stuck there. It was more difficult at first; after just two uses, the pipes got clogged, and even steam couldn’t melt them. Later, applying a little solvent oil helped improve the situation a bit.
Reply #102025-03-12
The pipeline can be cleaned; it’s blocked by slag from the reactor wall that has accumulated at the valve. What is a full-bore ball valve?
Reply #112025-03-12
1. Add a filter, transfer the material, and rinse it with a solvent. 2. Provide heat tracing for pipes and valves; 3. Perform nitrogen purging.

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