SU623561A1

SU623561A1 - Evaporating vacuum-crystallizer

Info

Publication number: SU623561A1
Application number: SU731981263A
Authority: SU
Inventors: Александр Николаевич Алабовский; Анатолий Александрович Почечун; Николай Григорьевич Нестеров
Original assignee: Alabovskij Aleksandr N; Pochechun Anatolij A; Nesterov Nikolaj G
Priority date: 1973-12-29
Filing date: 1973-12-29
Publication date: 1978-09-15

Description

(54) ВЫПАРНОЙ ВАКУУМ-КРИСТАЛЛИЗАТОР(54) EXHAUST VACUUM CRYSTALLIZER

Известен выпарной вакуум-кристаллизатор , содержащий корпус кристаллизатора с соосно установленной опускной трубой , соединенной с вакуум-испарителем, циркул ционный насос, погружную горелку , брызгоотделитель и патрубок дл подачи подпитьшающего раствора ij. Поступающий в опускную трубу .пересыщенный маточный раствор вызывает образование солеотложений на ее поверхности, необходимо периодически .останавливать аппарат7 в результате снижаетс его производительность .A evaporating vacuum crystallizer is known, comprising a crystallizer body with a coaxially mounted standpipe pipe connected to a vacuum evaporator, a circulation pump, an immersion burner, a spray separator, and a nozzle for supplying the charging solution ij. The supersaturated mother liquor entering the standpipe causes scaling on its surface, and the apparatus must be periodically stopped. As a result, its productivity decreases.

Цель изобретени - пош 1щение прои водительности кристаллизатора путем иоключени солеотложений.The purpose of the invention is the production of the crystallization capacity of the crystallizer by means of scaling.

Поставленна цель достигаетс тем, что корпус кристаллизатсфа снабжен наклонной перегородкой и зигзагообразнс трубой, в верхней части которой распол жена погружна г сделка, а в нижней раэмещен патрубок подпитывающего раствс ра , причем нижний торец зигзагообраэной трубы расположен коаксиально с опускиой трубой.The goal is achieved by the fact that the crystallized body is equipped with an inclined partition and a zigzag-shaped tube, in the upper part of which there is a submerged transaction, and in the lower part there is a branch pipe of the feed solution, with the lower end of the zigzag-shaped tube located coaxially with the lower tube.

На чертеже показан выпарной вакуумкристаллизатор , продольный разрез.The drawing shows a evaporator mold, a longitudinal section.

Вьшарной вакуум-кристаллизатор ct держит корпус 1, наклонна перегородка 2 раздел ет рабочнй объем корпуса криоталлизатора на кристаллораститель 3 и сепАратс 4. Перегородка 2 снабжена зигзагообразной трубкой 5,. в верхней части которой расположена погружна горелка 6 с брызгоотделителем 7, а в части по центру ее основани проходит соосно размещенна в корпусе кристализатора опускна труба 8, соедин юща сепаратор 4 с вакуу1 -испарителем 9 при помощи циркул ционного насоса 10 и циркул ционной трубы 11. В нижней чаоти зигзагообразной трубы 5 установлен -патрубок 12 дл подачи подпитьшающего раствора.The upper vacuum crystallizer ct holds the casing 1, the inclined partition 2 divides the working volume of the cryotallizer case into the crystal grower 3 and separate 4. The partition 2 is equipped with a zigzag tube 5 ,. in the upper part of which there is a submersible burner 6 with a splash separator 7, and in part in the center of its base a descending pipe 8, coaxially placed in the crystallizer body, connects the separator 4 with the vacuum evaporator 9 using the circulating pump 10 and the circulating pipe 11. A zigzag tube 5 is installed in the lower part of the zigzag tube 5 to supply the charging solution.

Claims

In the upper part, the separator 4 is equipped with a drop of an Ω 13 droplet, a pipe 14 for removing the vapor-gas mixture. In the crystal grower 3, a shtucer 15 is installed to drain the solution from the solution and a fitting 16 for the output of the suspension. The vacuum evaporator 9 is provided with a nozzle 17 for discharging the secondary steam. Evaporation vacuum crystallizer operates under atmospheric pressure as follows. The feed solution through patrubo 12 is fed into the zigzag tube 5, where it is mixed with the mother liquor coming from crystal grower 3, the mixed solution is in contact with the products of emergency combustion from the PC 6 of the electrolyte 6, the solution evaporates and flows into the upper part of the crystallizer 4, the separator 4. The vapor-gas mixture, the passage through the droplet through the droplet 13, is removed through the nozzle 14, and the heated and one stripped off solution from the separator 4 of the cylindrical pump 1O along the circulating pipe 11 is fed to the vacuum evaporator 9, where GOES cooling solution due to adiabatic portion nopareni sol {H) Ithel. The cooled and slightly transatasive solution through the standpipe 8 enters the crystal-solvent 3 and, rising up, creates an ascending flow supporting the growing crystals in a suspended state. As the solution passes through the suspended mixture, crystals grow due to the deposition of substances on the edges of the latter. The grown crystals, by their weight, overcome the upward flow and are deposited in the lower part of the expander crystal bone; then they are removed through the nozzle of the suspension 16 with a small amount of solution. From the top of crystalchase 3, the mother liquor enters again into the zigzag tube 5, mixes with the feeding solution, and the cycle repeats. Excess solution is removed through nozzle 15, and the secondary steam is withdrawn from the crystallizer through nozzle 17 Formula of the Invention The evaporator contains crystallized bottom pipe connected to a vacuum tube, a circulating pump, a normal burner, a spray separator and a pipe supplying an absorbing solution, characterized in that, in order to increase productivity by eliminating cell deposits, the housing 1 is equipped with a sloping feather and a zigzag tube in the upper part The burner is located at the bottom, and the latr is fed at the bottom, feeding the solution, and the bottom teff of the zigzag tube is located coaxially with the descending pipe. Sources of information taken into account during the examination: 1. certificate of the USSR M 362627, Cl. B 01 D 9 / GS, 1971.