Air stirring
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Our factory uses wet-process zinc smelting; the original leaching reaction tanks are equipped with mechanical stirrers of the conical type. To reduce the consumption of manganese powder, we intend to convert these mechanical stirrers into air-stirred types. We are not sure how to make it so that air can serve both as a stirring agent and as an oxidizing agent. In particular, it is important to know how the air pipes should be arranged, as well as what the air pressure and flow rate should be, in order to ensure that air can exert the best oxidizing effect. Thank you all for your guidance.
Do not change it to wind stirring, as mechanical stirring requires less power. A pressure blower can be used to supply additional oxygen.
Air agitation will lower the temperature of the leaching tank, which is not favorable for the leaching reaction； And it consumes more energy.
Reply to Drifter: When adding a pressure blower, is it sufficient to simply insert an air tube from the bottom, or is it necessary to add an air distribution device as well? Thank you.
An air dispersion device needs to be added, while also considering whether the existing mixer is suitable for a gas-liquid mixing system.
Reply to floor 5: What kind of dispersion device would be suitable to add? Thank you.
To achieve an air dispersion effect, it is recommended to add an air distributor ring at the bottom of the tank; this can be done simply by making multiple holes evenly distributed along a circular tube. Additionally, fixing devices should be installed in the tank to prevent interference with the existing stirrer.
If you’re interested, I can send you a picture of air stirring for reference, hehe
Reply to Floor 8: It would be great if you could send a picture; thank you. Email address: 168156scg@sina.com
Reply to Floor 8: It would be great to have one image showing mixing using only air, and another showing a combination of air mixing and mechanical mixing. It would also be helpful if you could tell me how to calculate the amount of air and the pressure required. Thank you very much.
As mentioned on floor 7, the hole faces downward. Looking forward to the results of your transformation...