ystral Whitepaper Innovation statt Tradition

5 cannot be shortened with a more ef- fective agitator. Up to ten times faster homoge- neous mixing with innovative mi- xing technology However, during stirring times, sig- nificant reductions in process time can be achieved by using innovative technologies, because in the periods shown in orange, complete dissoluti- on, hydrolisation, neutralisation and homogeneity must first be comple- ted before the next step can be ini- tiated. Due to its vertical circulation, the YSTRAL jetstream mixer (s. Fig. 2) can mix the vessel content homoge- neously up to ten times faster than a conventional agitator. In the example shown, the time needed is shortened to 90 minutes, which corresponds to only 25% of the previous stirring time. Depending on the process, savings of 60 to 90% are possible. As illustrated in Tab. 2., every process step of the stirring process previous- ly lasting 250 minutes was reduced, every single stirring and dissolution time is now shorter. The entire batch time reduces to 200 minutes. Due to this, instead of one batch, two batches per shift can be completed – only by using a more efficient mixer. Thus, no new system is required for doubling the production capacity, but simply a new mixer. An even greater process time reducti- on is possible when a jetstreammixer integrated into the vessel is combined with a mixer or disperser operated outside of the vessel in the circuit. In the above example, the batch time Innovation beats Tradition – Mixing instead of stirring such as dosing, dissolving, setting the pH value, dissolving polymers, neutra- lising as well as quality control and vi- scosity setting. The complete process so far has taken 360 minutes. This ma- kes just one batch per shift possible. If double the quantity is to be produ- ced, a second system is needed for this, amongst others with the respec- tive control and process technology. But there is another way. In this 360-minute process sequen- ce, the effective stirring time is 250 minutes (s. areas marked in orange in Tab. 1) – which is where the po- tential for reducing the process time can be found. Stirring also occurs in the areas shown in black, but water is added during these times, labora- tory measurement is performed or a release is expected. These times JETSTREAM MIXER | PROCESS TIME (MIN.) 20 5 10 5 5 10 15 5 5 15 45 15 45 Tab. 2: Batch time reductions from 360 to 200 minutes with a more effective mixer. Fig. 2: Jetstream mixers can be installed on the vessel wall, the ground or the vessel ceiling. Image: ystral Filling water Dosing components | Mixing Dissolving under Mixing Acid addition | Mixing Mixing until homogenous | pH adjustment Addition PAS under mixing Mixing until agglomerate free & fully hydrolyzed Caustic addition | Neutrali- zation under mixing Dosing active ingredients | Dosing color under mixing Mixing until homogenous Lab test Final Lab test | Release Viscosity & pH adjustment | Mixing