SU379538A1 - METHOD OF AUTOMATIC REGULATION OF THE PROCESS OF OBTAINING SODA - Google Patents

METHOD OF AUTOMATIC REGULATION OF THE PROCESS OF OBTAINING SODA

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Publication number
SU379538A1
SU379538A1 SU1722699A SU1722699A SU379538A1 SU 379538 A1 SU379538 A1 SU 379538A1 SU 1722699 A SU1722699 A SU 1722699A SU 1722699 A SU1722699 A SU 1722699A SU 379538 A1 SU379538 A1 SU 379538A1
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SU
USSR - Soviet Union
Prior art keywords
lime
mixer
distiller
liquid
soda
Prior art date
Application number
SU1722699A
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Russian (ru)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to SU1722699A priority Critical patent/SU379538A1/en
Application granted granted Critical
Publication of SU379538A1 publication Critical patent/SU379538A1/en

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Description

1one

Изобретение относитс  к автоматизаци  производства соды и может быть использов но в химической промышленности.This invention relates to automating the production of soda and can be used in the chemical industry.

Известен способ автоматического регулировани  процесса пол чени  соды путем подачи двух потоков извести в смеситель и дистиллер с изменением расхода извести в смеситель по величине рН жидкости смесител  и изменением подачи извести в дистиллер по расходу извести в смеситель.There is a known method for automatically controlling the process of soda soda by feeding two streams of lime into a mixer and a distiller with a change in lime consumption to the mixer according to the pH value of the mixer liquid and changing the lime feed to the distiller according to lime consumption into the mixer.

Недостатком известного способа  вл етс  низкое качество регулировани  концентрации СаО в жидкости дистиллера.The disadvantage of this method is the low quality of controlling the concentration of CaO in the liquid of the distiller.

Цель изобретени  - повышение точности регулировани . Дл  этого по предлагаемому способу подачу извести в дистиллер осуществл ют в зависимости от величины рН жидкости смесител  с коррекцией по концентрации СаО в жидкости дистиллера.The purpose of the invention is to improve the accuracy of regulation. For this, according to the proposed method, lime is supplied to the distiller, depending on the pH value of the mixer liquid, with correction for the CaO concentration in the distiller liquid.

На чертеже схематично показана установка дл  подачи извести по предлагаемому способу .The drawing schematically shows the installation for the supply of lime by the proposed method.

Поток фильтровой жидкости из теплообменника дистилл ции (ТДС) направл ют в смеситель /, куда из мешалки 2 подают известь в количестве до 90% от необходимого по стехиометрии. Недостающее до стехиометрического количество извести с небольшимThe flow of filtering liquid from the distillation heat exchanger (TDS) is sent to the mixer /, where lime is fed from the mixer 2 in an amount up to 90% of the required stoichiometry. Missing to stoichiometric amount of lime with a small

избытком подают в трубопровод, по которому жидкость после измерени  в ней рН поступает в дистиллер 3.excess is fed into the pipeline, through which the liquid after measuring the pH in it enters the distiller 3.

Регулирование процесса осуществл ют следующим образом.The process is controlled as follows.

На выходе из смесител  / при помощи регул тора 4 поддерживают посто нное значение рН.At the outlet of the mixer / by means of the controller 4, a constant pH value is maintained.

При всех изменени х расхода фильтровой жидкости, концентрации NH4C1 в ней, а также концентрации СаО в извести регул тор 4, получив сигнал об изменении величины рП, выдает команду на изменение подачи известиWith all changes in the flow rate of the filter fluid, the concentration of NH4C1 in it, as well as the concentration of CaO in lime, regulator 4, having received a signal about a change in the RP value, issues a command to change the lime supply

в смеситель /. Подачу извести в дистиллер поддреживают регул тором 5, управл ющий сигнал которого измен етс  в зависимости от сигнала, пропорционального величине рН жидкости смесител , т. е. в зависимости отinto the mixer. The supply of lime to the distiller is supported by regulator 5, the control signal of which varies depending on the signal proportional to the pH value of the mixer liquid, i.e. depending on

указанных изменений расхода фильтровой жидкости, концентрации NH4C1 в ней и концентрации СаО в извести.These changes in the flow rate of the filter fluid, the concentration of NH4C1 in it and the concentration of CaO in lime.

Дл  поддрежани  оптимальной концентрации СаО в жидкости дистиллера сигнал, пропорциональный величине рН, корректируют в зависимости от концентрации СаО в жидкости дистиллера.To maintain an optimal CaO concentration in the distiller fluid, a signal proportional to the pH value is adjusted depending on the CaO concentration in the distiller fluid.

Предлагаемый способ в 1,5-2 раза повышает точность регулировани .The proposed method increases the accuracy of regulation 1.5-2 times.

Предмет изобретени Subject invention

Способ автоматического регулировани  процесса получени  соды путем подачи двух потоков извести в смеситель и дистиллер с изменением расхода извести в смеситель поA method for automatically controlling the process of soda production by feeding two streams of lime to the mixer and a distiller with a change in lime consumption to the mixer according to

величине рН жидкости смесител , отличающийс  тем, что, с целью повышени  точности регулировани , подачу извести в дистиллер осуществл ют в зависимости от величины рН жидкости смесител  с коррекцией по концентрации СаО в жидкости дистиллера.the pH value of the mixer liquid, characterized in that, in order to increase the control accuracy, lime is supplied to the distiller depending on the pH value of the mixer liquid and corrected for the CaO concentration in the distiller liquid.

SU1722699A 1971-11-29 1971-11-29 METHOD OF AUTOMATIC REGULATION OF THE PROCESS OF OBTAINING SODA SU379538A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1722699A SU379538A1 (en) 1971-11-29 1971-11-29 METHOD OF AUTOMATIC REGULATION OF THE PROCESS OF OBTAINING SODA

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1722699A SU379538A1 (en) 1971-11-29 1971-11-29 METHOD OF AUTOMATIC REGULATION OF THE PROCESS OF OBTAINING SODA

Publications (1)

Publication Number Publication Date
SU379538A1 true SU379538A1 (en) 1973-04-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1722699A SU379538A1 (en) 1971-11-29 1971-11-29 METHOD OF AUTOMATIC REGULATION OF THE PROCESS OF OBTAINING SODA

Country Status (1)

Country Link
SU (1) SU379538A1 (en)

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