SU1414862A1 - Vacuum installation for distilling oil miscella - Google Patents

Abstract

The invention relates to equipment for the oil and fat industry. The goal is to increase the production-. telnosti. The invention makes it possible to use the heat of solvent vapor to preheat the miscella and to increase the distillation efficiency several times due to the injection spray of the miscella. In the distillation apparatuses of the second and third stages, steam ejector nozzles are installed, the steam nozzles of the third stage are connected to the main steam line, and the steam nozzles of the second stage nozzles are connected by pipeline through a steam ejector and the heat exchanger to the vapor space of the third stage distiller. The vapor condenser of the distillates of the second-stage distillation apparatus is connected via a vapor ejector to the annular space of the first-stage distillation apparatus and parallel to the cavity of the reflux condenser. The annular space of the distillation apparatus; the first stage is connected to the mechanical nozzle of the irrigation condenser, the cavity of which is connected to the heat exchanger for heating fresh miscella, 1 sludge. "

Description

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

The purpose of the invention is the vision of-;. performance

Equipping the unit with steam ejectors allows the use of heat from the secondary vapor S exiting from the caTopoBj condec, which, together with ejector | Q toro nozzles, provides optimum heat and temperature characteristics during distillation processes.

The drawing shows the installation diagram ig.

;. A vacuum gas distillation unit for oiling miscella contains three

I distillation apparatus 1-3 ,, set ™ i new consistently. Distil -. The first stage of the first-stage apparatus 1 is: full shell-and-tube film. And i two subsequent apparatus 2 and 3 are races; spray type with nozzles in vvde

Each of the distillers 1-3 is equipped with condensation ™

a torus of 4-6 vapors, respectively, before entering distillation apparatuses

A: 1 and 2 of the first and second stages are heat exchangers 7 and 8, respectively. Condensers of 5 and 6 vapors of the second and third; The stages are connected to steam ejectors 9 and 10. The vacuum unit also contains an irrigation condenser 11 with a mechanical nozzle and a pump 12-15 for pumping miscella and condensate. The heat exchanger 7 is connected through pump 12 with the output of the distillation apparatus -15 whose output through the pump 14 and the heat exchanger 8 is connected to the inlet of the forenunk by distillation of the apparatus 2 ' Vipod of the distillation apparatus 2 through the pump 15 is connected to the inlet of the nozzles of the distillation apparatus 3, Solvent vapors from the distillation apparatuses 1-3 are sent to 4–6 vapor capacitors corresponding to them, the Ejector 10 is connected to the nozzles of the distillation unit 2 via heat exchange 8, and the steam ejector 9 is connected to the heat exchanger 7 through the cavity of the irrigation condenser 11 and to the mechanical nozzle of the irrigation condenser through the tubular space of the dispenser of the stationer 1 and pump 3 “The installation works in the following way - i.

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The fresh misdella is heated in the heat exchanger 7 by condensate coming from the reflux condenser 11, and is fed to the input of the first stage distiller 1, then the centered misdella is pumped. 14 into the heat exchanger 8 heated by steam from the steam ejector 10. Then the miscella enters the nozzles of the second stage distiller S into the steam nozzles of which the vapor is supplied from the heat exchanger 8 after the second stage of the miscella is fed by the pump 15 into the nozzles of the distiller. Lt 3 of the third stage 3, into the steam nozzles of which the sharp water vapor is fed. The vapor from the second stage distiller 2 through the condenser 5 and the steam generator 9 enters the annular space of the first stage distiller 1 and parallel to the vapor space of the reflux condenser 11, where in the counter flow of the condensate and vapor sprayed by the mechanical nozzle, the solvent is distilled off from the condensate with the supply of distilled vapors into the condenser 4 of the first stage vapor and at the same time the water vapor condenses and th supply of condensate to the heat exchanger 7 fresh miscella. The evaporated miscella in the form of extraction oil is discharged from the third stage distillation apparatus 3.

Improving the performance of the installation (additional capacity increase) is achieved by increasing the steam ejector nozzles installed in the distillers 2 and 3 of the second and third stages. The steam ejector nozzles provide

a standard oil exclusion oil at a feed rate of up to 500 fr / i miscella per nozzle. At the same time, BP.J it h. the process at the second and third stages is reduced by 15–20 times.

The operation of steam ejectors 9 and 10 installed at the output of the capacitors 5 and 6 of the vapors of the second and third stages ensures the cascade charging of the associated distillers 2 and 3,

Claims (1)

Invention Formula Vacuum unit for the distillation of oil miscella, which includes serially connected distillation apparatus with condensers. 3 -, 4 vapors, heat exchangers installed at the inlet to the distillation apparatuses of the first and second stages, condensers. a pump nozzle mechanic; pumps, while the first stage distillation apparatus is made with a leather-tube film, and the next two with spray nozzles, characterized in that, in order to increase productivity, it is equipped with steam ejectors whose inlets are connected to condensers vapors of the second and third stages, and weekends - respectively with the annular space of distillates 2 of the first stage apparatus and with the nozzles of the second stage distillation apparatus with the possibility of vapor passing through its heat exchanger; the nozzles of the second and third stages of the distillation apparatus are made in the form of ejectors, the heat exchanger of the first stage distillation apparatus connected to the vapor nozzle of the vapor ejector with the possibility of vapor passage through the cavity of the reflux condenser, and the mechanical nozzle of the latter with the annular space of the first stage distillation apparatus. $ Maot9emtm