How to remove static electricity from steel weighing containers, plastic tanks, and pipes
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I’m seeking advice from experts: the organic material used in our company contains CL ions, so the tanks and pipes are made of LLDPE, a type of plastic. So, how should the static electricity generated by material transfer in tanks and pipes be dissipated? For metal tanks and pipes, static electricity bonding is added using flange bolts. There is a layer of plastic inside plastic pipes – can static electricity be conducted away through it? There is another question: how are plastic ton barrels generally grounded to discharge static electricity? Is it the material itself that is conductive?
A copper wire can be inserted through the lower outlet flange (the wire is pressed against the flange gasket and in good contact with it), and run along the tank wall to the upper opening flange; for better results, it can be arranged in a mesh pattern.
It’s explained in the electrostatics guidelines; there are examples given, take a look
There will be more leakage points between the copper wire and the pad, right?
Which specification is it? I can’t find it
Storage tanks and pipelines can use pure graphite gaskets along with wires to discharge static electricity; using copper wires alone is not corrosion-resistant.
This problem is encountered frequently in actual production. Some flammable materials are corrosive and can damage anti-static hoses; in such cases, corrosion-resistant yet non-static-conductive plastic hoses are used. However, how to ensure static discharge remains a challenge. There are also situations, as mentioned by the original poster, where plastic drums are used for transferring materials – in these cases, how to handle static discharge? If anyone has any good solutions, please share them; please include diagrams as well.
Steel-lined plastic hoses can eliminate static electricity and address corrosion issues. There are specialized antistatic grades available in the drum market, suitable for use with flammable and corrosive chemicals; they are widely used in explosion-proof areas
Refer to HGT 20675-1990 \"Code for Design of Static Grounding in Chemical Enterprises\" and GB12158-2006 \"General Guidelines for Preventing Static Electricity Accidents\" for the various static electricity prevention methods and related requirements; http://www.doc88.com/p-7025829697116.html； http://wenku.baidu.com/view/f5e659f6a26925c52cc5bfe0.html