SU1442538A1 - Thin-film distiller of oil micella - Google Patents

Abstract

The invention relates to the obsrudables for the oil and fat industry, and more specifically to film distillation evaporation plants designed to strengthen oil: miscella. The goal is to increase productivity by making it possible to control the intensity of the distillation process. The film distiller for oil miscella contains a body, a pipe section, a collector, and nozzles for inlet and outlet of the miscella. The film distiller is equipped with additional tube plates that can be moved in height, and individual nozzles for supplying and discharging heating steam to the chambers, and movable hollow rods are installed inside the tubes of the tube section to remove solvent vapors. 3 il.

Description

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The invention relates to equipment for the oil and fat industry.

The purpose of the invention is to increase the productivity by allowing the intensity of the distillation process to be controlled,

Equipping the distiller with additional tube plates installed with the ability to move in conjunction with movable hollow stitches to remove solvent vapors provides the possibility of creating optimal temperature regimes in various zones of adjusting the span of solvents as well as efficiently removing the solvent vapors directly from their zone of education.

FIG. 1 shows a distiller general view; in fig. 2 shows a section of a tube with a movable rod placed in it in FIG. 3 - boiling zone of miscella film in the tube.

The film distillation apparatus contains a vertical cylindrical body 1 with an upper lid 2 and a collection of 3 miscella in the lower part. In case 1, a heated pipe section 4 is housed, reinforced between the upper 5 and lower 6 trubnv-4 and boards. Between the upper 5 and lower 6 tube plates there are movable additional tube plates 7 one: under the other, connected to the screw mechanisms 8 of their reciprocating post-movement movement. Each heated zone 9; forming inter-tube boards 5-7, has branch pipes for supplying deaf steam 10 and condensate drain 11. Inside each tube of the pipe section 4, there is a movable N. hollow rod 12 with gas ducts 13 for removal of solvent vapors The lower part of the rods 12 is connected to the mechanism for adjusting the position of the rods 12, which contains the holding body, T4, communicating with the solvent vapor branch pipe, and the actuator 15. In the top cover 2 of the housing 1 there is a branch pipe 16 - ly, and in the lower part of the collection 3 patrubo 17 discharge the evaporated miscella,

On the tubes of the pipe section 4, limiters 18 are displaced in addition to the intermediate tube plates 7.

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Film distiller works as follows

The micelle, entering the housing 1 through the pipe 16, is distributed along the upper tube plate 5 and flows by gravity down the inner surface. These tubes of tube section 4 are in the form of a film from which the solvent evaporates.

In this case, the following evaporation zones can be identified in the tubes of the apparatus: A - economizer, B - undeveloped boiling 5 V - developed boiling, G - increased steam content. In the economical zone A, convective heat transfer occurs and the miscella is heated from a single temperature to the initial boiling point.

In the zone of undeveloped boiling B, boiling occurs, the intensity of which increases with decreasing height of the tubes of the apparatus. At the same time, the temperature of the miscella rises to its maximum, also called the temperature at the boiling point,

In the zone of developed boiling B, the maximum boiling occurs and this zone corresponds to the greatest intensity of heat transfer at a temperature decreasing from the maximum. A decrease in temperature occurs due to evaporation of a part of the solvent and an increase in the boiling point of miscella,

In the zone of dry steam content G., The boiling temperature of the miscella is further enhanced to its output. value. At this site, the intensity of heat transfer is reduced dramatically. A decrease in the heat transfer coefficient in this zone is associated with an increased vapor content, which occurs due to the separation of the heating surface from the flowing film of the miscella with evaporating solvent bubbles.

The developed boiling zone is the most productive and increasing its length by reducing the length of other zones allows increasing the surface heat flux average for the whole apparatus and the boiling intensity of miscella and detached solvent.

To carry out the distillation process, the miscella is subjected to heat treatment, for which through the nozzle 10

Zone A serves steam. Due to the convective heat transfer in economizer zone A, the miscella is heated to the initial boiling point. Then the micelle, stack down, falls into the zone of undeveloped boiling B, which is heated through the second steam supply nozzle 10. In the zone of undeveloped boiling B, boiling occurs, the intensity of which increases as the height of the apparatus decreases. Due to the additional mixing of the miscella, an increase occurs in the cobine of the insertion of the movable rods 12, moving the additional tubular disks 7 by means of a screw mechanism 8

Claims (1)

Formula of Invention A film distiller for oil miscella, including a vertical cylindrical body with upper and lower tube plates, between which there is a heated tube section with movable rods located inside the tubes, pipes for supplying miscella and steam vapor heat transfer efficiency. In the zone of development, 15 ° C of solvent and condensate, collected boiling B, where the miscella enters after passing through the previous zone B, is heated through the third port 10. Residual solvent vapors are removed in this zone, 20, and the miscella flows into a collector 3, where through pipe 17 is removed from the di-cTminHTopa J Solvent evaporated from the miscella all the way through A nickname located in the lower part of the body with a mechanism installed therein: adjusting the position of the rods, complete in the form of a holder with a drive, characterized in that, in order to increase productivity by allowing the intensity of the distillation process to be controlled, it is equipped with working tubes, is removed through the gas-25 "m between the upper and lower pipe boards one below the other with the possibility of reciprocating movement by means of a screw mechanism by additional tube plates and additional pipes for supplying deaf steam and condensate drain, with the movable rods and the holder made hollow, the holder cavity communicating with the solvent vapor nozzle and Gas fluids for removal of solvent vapors. water 13 movable rods 12 and is also discharged through holder 14. When the concentration of the miscella entering the distiller is changed, or when the amount of miscella or heated steam is changed. the height of each of the three zones involved in evaporation of the solvent varies. At the same time, in order to maintain the same intensity of distillation of the solvent, the size of the heating zones and the depth of the solvent and condensate are changed; Nickname located in the lower part of the body with the mechanism installed in it: adjusting the position of the rods, complete in the form of a holder with a drive, characterized in that, in order to increase the productivity by allowing the intensity of the distillation process to be controlled, it is equipped with an "i" between and bottom pipe boards one below the other with the possibility of reciprocating movement by means of a screw mechanism by additional tube plates and additional pipes for supplying deaf steam and condensate drain, with the movable rods and the holder made hollow, the holder cavity communicating with the solvent vapor nozzle and Gas fluids for removal of solvent vapors. W f t P te. as, J