Methods for dealing with pipeline blockages
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For the discharge pipes of equipment, since the bottom of the equipment is usually covered with dirt, these pipes often get clogged. Are there any good ways to deal with this?
Using hot water with a pressure higher than that of the discharge medium for backwashing is somewhat effective.
It depends on what type of medium it is; for non-hazardous media, the valve can be opened to clear the blockage directly, but even in that case, precautions must be taken in advance. It’s best to be able to cut it out and clear it. It’s also possible to use a pipeline connected to high-pressure medium for backwashing. Generally, at the beginning, the valve is slightly opened and a board is used to strike it.
It depends on the medium used; is filtering applied? Try using steam, compressed air, nitrogen, etc. to blow it
Turn the valve down a bit and poke it with a wire! This is very useful! Be careful when pricking!
This needs to be determined based on the properties of the substance. For oily substances, steam or piping can be used for regular purging; for residues, it is best to install filters at the inlet pipes of the equipment or increase the number of exhaust outlets, in order to raise the frequency of purging or exhaust
I think we need to find the source, determine what is blocking things, and see if there’s a way to avoid it
Can we add a nitrogen purge line?
Mainly check what medium it is. It can be purged with high-pressure nitrogen, steam, or air. The exhaust pipe is thicker for easier cleaning. Consider adding a Y-type filter for frequent cleaning.
I. Points to note in the design: 1. For processes where materials are prone to dust accumulation and blockages, purge gas or flushing water should be introduced at an appropriate position at the bottom to maintain fluidization there and reduce the likelihood of scaling. 2. When designing the equipment, the flow pattern of materials inside must be taken into account to prevent the formation of \"dead zones\". 3. Try to increase turbulence in the material flow at the bottom in order to reduce deposition. II. In terms of management, a system for regular waste discharge should be established, especially in areas where oil residues and sludge accumulate.
It’s mainly the tar and coal dust that accumulate at the bottom of the equipment; when a wire is used to clear it, the floor usually gets contaminated in that moment.