HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

The calcium hydroxide solution in this position frequently forms scale; seeking advice

2017-12-12View Original

Thread Content

As soon as the feeder gets clogged, the transfer pump will be overloaded and thus shut down due to overload. At the moment, we’re just using makeshift methods, by knocking. When the scaled part is knocked off, the current level drops. In such cases, my first thought was to use acid; however, after seeking advice, I learned that using hydrochloric acid can lead to explosions, as it contains free chlorine which can produce chloroacetylene (it seems that in scrubbers, the effective chlorine concentration needs to be strictly controlled at 0.085–0.12%). Sulfuric acid, on the other hand, produces calcium sulfate, and weak acids cannot remove the scale. I would like to ask all fellow sailors for any good suggestions; please advise
Reply #22018-01-10
I’m very clear about which devices the feeders and transfer pumps are; as for scaling, our experience suggests carrying out regular acid cleaning or high-pressure water cleaning, depending on whether your schedule allows for such regular treatments
Reply #32021-03-15
Use a calcium sulfate cleaning agent with a pH value of 7.0±0.1 – it is non-corrosive and acts rapidly; the dirt is removed at a speed visible to the naked eye. If you need it, I can send you samples for free. Of course, you need to be sure that the scale in question is indeed calcium sulfate. I guarantee it will work well, allowing you to avoid downtime and achieving quick cleaning results. 18120019167 (same number on VX)
Reply #42021-08-18
Regarding the scaling problem caused by lime milk, our company can resolve it by adding chemicals, which allows the cleaning interval to be extended by about 3 times. My WeChat ID is 13606362712; please feel free to get in touch. Thank you

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.