(5 4 V 01 V 3/22 DESCRIPTION OF THE INVENTION OF THE AUTHOR'S 6ilial Voroshi ns SSRO.RELKA stvo S 2, 198 NAYA TA XYA kfk elok et bm is STATE COMMITTEE OF THE USSR FOR INVENTIONS AND DISCOVERIES (71) Rubezhsky Fgradsky machine construction nails(57 ) The invention relates to the structures of failed container machines and can be used in chemical industry, in particular when processing acids. The purpose of the invention is to intensify the mass transfer process by increasing the phase contact surface and reducing material consumption without reducing mechanical strength. The plate includes a plate 1 with 2 holes various sizes,side walls 3 of which are made in the form of tetrahedral truncated pyramids with rounded ribs and a cylindrical bore in the narrowed part, with large bases large holes located on the top side of the plate. 4 ill. The invention relates to the design of failure plates of mass transfer devices and can be used in the chemical industry, in particular in the processing of acids. The purpose of the invention is to intensify the mass transfer process by increasing the phase contact surface and reducing material consumption without reducing mechanical strength. In Fig. 1 shows a plate, top view; in fig. 2 - the same, VND from below; in fig. 3 - section A-A in Fig. 1; in fig. 4 - section B-B in fig. 2. The bubbler failure plate includes a plate 1 with holes 2 of different sizes, the side walls 3 of which are made in the form of four-sided truncated pyramids with rounded ribs and a cylindrical bore in the narrowed part, as well as with a conical chamfer. In this case, the large bases of the large holes are located on the upper side of the plate. It is also advisable to arrange holes of different sizes in alternating rows. The plate works as follows: The liquid phase supplied for irrigation enters the plate and fills the pyramidal holes bigger size. The gas entering from the underlying plate into the cylindrical bore of the pyramidal hole bubbles through the resulting layer of liquid, thereby increasing the phase contact surface. The other part 5 of the liquid passes through the cylindrical bores of the pyramidal holes on the bottom side of the plate, is distributed in them in the form of a film and flows down, interacting with the ascending gas flow .The design features of this plate make it possible to use it more fully work surface, The plate can be made of a ferroalloy by casting or from fluoroplastic by pressing. Formula 20 Bvrbotage failure plate, including a plate with holes of various sizes, differing in that, In order to intensify the mass transfer process by increasing the contact surface of the fae and reducing material consumption without reducing mechanical strength, the side walls of the holes are made in the form of tetrahedral truncated pyramids with rounded ribs and a cylindrical bore in the narrowed part, with the large bases of the large holes located on the upper side of the plate .
Application
3875425, 26.03.1985
RUBEZHANSKY BRANCH OF VOROSHILOVGRAD MECHANICAL ENGINEERING INSTITUTE
ZINCHENKO IGOR MAKSIMOVICH, MOROKIN VLADIMIR IVANOVYCH, SUMALINSKY GRIGORY ABRAMOVICH, DROZDOV ANATOLY VASILIEVICH, ERIN ANATOLY ALEKSANDROVICH
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Link code
Bubbler failure plate
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What is a disk column and why is it needed at all... The significant difference from the drawer is that in a disk column we use SPN (spiral) instead of a nozzle prismatic nozzle) the plates themselves. Using a plate column we will not get pure alcohol. However, we can get the so-called under-rectified with a strength of 90-95 vol. That is, it is not yet alcohol, but it is no longer a distillate. A very highly purified distillate that still retains notes of the original raw material. This technology has been around for over a hundred years, and it is actively used by distillers around the world. Our country in this sense last years not an exception. These columns are gaining immense popularity.
Let's look at the main differences between columns to properly understand the choice of a specific column.
- Like all our equipment, disc columns are distinguished by series: HD/4 or HD/3. Everything is simple here. If you already have HD equipment, the choice is made according to the appropriate series of equipment. If you are just going to purchase equipment, then you need to understand the difference between the HD/4 and HD/3 series. The HD/4 series is more budget-friendly and has an optimal price-quality ratio. The HD/3 series has a higher price, but also higher performance.
- Materials used in the manufacture of columns. It's either food stainless steel, or quartz glass. In the latter case, you have the opportunity to observe the process visually, which is a real pleasure. Do not forget that first of all we engage in this hobby for pleasure.
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As planned in the previous one, I tested the disc insert. In fact, such an insert is one of the variations of the attachment for mash columns.
Why for the winemakers? That on the plate column, of which this insert is a part, it is impossible to obtain alcohol? In principle, of course, you can resort to alcohol, but it will be very irrational. Remember, in one of the books devoted to the theory of rectification, I wrote that to obtain alcohol you need to have at least 50 plates. Considering that the height of a conventional plate for the SPN nozzle is approximately 2 cm, and the distance between the physical plates is approximately equal to the diameter with a real efficiency of around 85% (in comparison with a theoretical plate, such sieve plates do not provide an adequate separation effect), then the actually comparable height of such a plate column will be 2.5-3 times greater than that of a column with SPN packing with equal capabilities. So it turns out that the construction of RC on sieve plates is the lot of people who are obsessed with a passion for plate structures, but on BC, where the task of deep separation is not set in principle (the goal is the distillate), the use of such plates is justified.
In addition, the plates have advantages compared to SPN and washcloths in BC - the plates are easy to clean and clog less. The main thing is to choose the right diameter and number of holes and the dimensions of the plate itself. Here my insert comes into some conflict with the dogma that has formed recently that there is nothing to do with plates with a diameter of less than 50mm, but what can I do - I have a 38 pipe with an internal diameter of 35mm. This is what we will proceed from.
So, an insert of 7 fluoroplastic plates was placed in an empty drawer with a height of 500 mm, the total length of the insert being 270 mm. Each plate has 22-25 (and one has 30) holes with a diameter of 3 mm, randomly drilled for additional “swirl” of steam. Why is this so? I find it difficult to answer - it seemed to me that this would be correct, although I do not insist on this opinion. By the way, the plates are too loose and it would have been possible to place at least one more plate on the same insert. The entire process was carried out on a reversal with a large aftercooler, the CC was diluted to approximately 12%.
Heads were first collected at a rate of one drop per second. Then the selection of the body began. The insert with plates made it possible to obtain a stable temperature of the steam passing into the reflux condenser. By varying the amount of selection (by squeezing the selection tube with a Hoffmann clamp), it was possible to influence this temperature. I was quite satisfied with the thermometer reading at 79°C with a sampling rate of 2.4 l/hour. Towards the end of the process the output dropped slightly to approximately 2.1 l/h. When the thermometer in the cube read 96°C, I stopped selecting the commercial product and switched to tailings. Then the productivity began to drop more noticeably and at a temperature in the cube of about 98°C, the selection became very small. Attempts to increase power and selection did not lead to success, since isoamyl began to flow through TCA. This point is not entirely clear to me. Either some non-condensable gases are formed, or the performance of the CT in the reflux mode was not enough (which is doubtful at the power that I gave). There is one more experiment ahead - you need to either run the CT as a dephlegmator (maybe its capabilities are insufficient, which is strange), or repeat the experiment with an insert on an already tested def with a dimrot.
Summary . The output is a product with a strength of 80°. Not thick, but quite suitable for bourbon production purposes. Can be considered as an option for a relatively simple attachment for distillers with reinforcement. All that remains is to compare it with a small hinged SPN and just a really empty drawer. And, by the way, I made a mistake when conducting the experiment - I did not insulate the empty drawer, which became a packing drawer. In general, the field ahead is not plowed.
What’s interesting is that the strength did not change throughout the entire shoulder strap (even on the heads there were the same 80°) until the tails, but it began to drop very sharply when moving to the tails. Also, in general, it’s strange for the heads. I'll probably play with plates some more.
