To design an increase in soda ash production of 400,000 tons/year, how to match the cold salt crystallizer?
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To design an increase in soda ash production of 400,000 tons/year, how should the cold salt crystallizer be matched? The original company's annual output of 600,000 tons used four sets of cold salting out crystallizers, all with a diameter of 5 meters. This year, an additional 400,000 tons have been added. It is planned to use two sets of 8-meter cold salting out crystallizers to match. Please tell me whether it is suitable?
It should be appropriate, just in terms of volume, it is enough, but it still needs to be calibrated.
Haha, if the crystallizer amplification is just geometric amplification, why would there be so many crystallizers doing it? The crystallization process is not only a matter of equipment, but operating conditions are also critical. It's better to be more cautious.
Our leader said it. The crystallization operation is actually very simple.
Is it the double ring 60 to 100? The original poster's idea of adding a crystallizer should be fine.
I want to ask quietly: Where did lz see the 5m crystallizer? If I remember correctly, lz turned out to be a double ring, right? As far as I know, the old double-ring system crystallizer is Φ8500/Φ5500 V = 250m3 (almost the standard design of early joint-alkali devices), and the new system is Φ10000/Φ9000 V = 500m3. Is this correct? In fact, the simplest way to estimate a crystallizer is the volume coefficient of the crystallizer. However, from a practical point of view, the volume utilization of large crystallizers is not as good as that of small crystallizers. For a 100m3 crystallizer, the volume coefficient can reach 0.75 or even higher, while for a crystallizer of 300m3 or above, the volume coefficient can only reach about 0.5 to 0.7. Too large a crystallizer also faces the problem of how to solve the vortex problem of a large axial flow pump. If calculated based on the newly added 400kt/a device capacity, the crystallizer specifications should be Φ10000/Φ9000 V = two sets of 650m3 (would it be better if it could reach 800m3 like Wanzhou? ), the crystallizer flow rate is about 0.028m/s~0.04m/s. Since the parameters of each factory are different, the calculation results may be different and are for reference only.
To design an increase in soda ash production of 400,000 tons/year, cold salt crystallizers can be used. Two sets of cold salt precipitation crystallizers can be used, both with diameters of Φ5138-Φ12000, V=839m3 meters in diameter, and an additional 400,000 tons will be added this year.
What the person on the 3rd floor said is right. In fact, crystallizer design is not that simple. For many things, good crystals can be grown in the laboratory, but in large-scale production, good products may not be obtained. Chinese companies only require products and do not have high requirements for product quality, so they think crystallization is a very simple process. If you consider the production cost, product quality, and the difficulty of the post-processing process, crystallizer design is a relatively complicated process, which requires a solid theoretical foundation and rich design experience. Foreigners have done very well in crystallization theory. When it comes to the design of actual system crystallizers and crystallization processes, some foreign companies and universities have even come to China to cooperate. In recent years, many foreigners have cooperated with our tutors in crystallization process development and crystallizer design. Crystal King on the 3rd floor has done a very good job in designing crystallizers. I heard that he has successfully designed several sets of large crystallizers in cooperation with several companies. I hope to have the opportunity to learn more from him in the future. * Check out relevant design experience.