SU456129A1 - The method of automatic control of the firing process in fluidized bed furnaces - Google Patents

The method of automatic control of the firing process in fluidized bed furnaces

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Publication number
SU456129A1
SU456129A1 SU1819051A SU1819051A SU456129A1 SU 456129 A1 SU456129 A1 SU 456129A1 SU 1819051 A SU1819051 A SU 1819051A SU 1819051 A SU1819051 A SU 1819051A SU 456129 A1 SU456129 A1 SU 456129A1
Authority
SU
USSR - Soviet Union
Prior art keywords
fluidized bed
firing process
automatic control
bed furnaces
firing
Prior art date
Application number
SU1819051A
Other languages
Russian (ru)
Inventor
Владислав Александрович Живописцев
Владимир Сергеевич Петровский
Наталья Георгиевна Буриченкова
Кирилл Александрович Котляров
Ольга Васильевна Назарова
Original Assignee
Предприятие П/Я В-8830
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.)
Filing date
Publication date
Application filed by Предприятие П/Я В-8830 filed Critical Предприятие П/Я В-8830
Priority to SU1819051A priority Critical patent/SU456129A1/en
Application granted granted Critical
Publication of SU456129A1 publication Critical patent/SU456129A1/en

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Description

ком 6 и температура обжигового газа после печи датчиком 7. Сигналы от этих датчиков через блок 8 сравнени  поступают в регул тор 9 подачи серосодержащего сырь , который корректируетс  через устройство 10 по расходу дуть , замеренного расходомером 11. При изменении расхода дуть  измен етс  сопротивление аппаратов и количество подсосов по тракту прохождени  обжигового газа, концентраци  сернистого ангидрида в обжиговом газе и обща  нагрузка системы. Дл  компенсации этого вли ни  замер етс  перепад разрежени  в обжиговом тракте, соответствующий количеству подсосов, датчиком 12 и 13. Сигнал от этих датчиков через корректирующее устройство 14 подаетс  в регул тор 9 подачи сырь .com 6 and the temperature of the kiln gas after the furnace by the sensor 7. Signals from these sensors through the comparison unit 8 enter the sulfur feed supply regulator 9, which is corrected through the device 10 by the flow rate measured by the flow meter 11. As the flow rate changes, the resistance of the apparatus changes and the amount of leakage through the firing gas passage, the concentration of sulfur dioxide in the firing gas and the total system load. To compensate for this effect, a differential vacuum in the burning tract, corresponding to the number of suction, is measured by sensor 12 and 13. The signal from these sensors is fed through a correction device 14 to the feed regulator 9.

Замер етс  уровень кип щего сло  по его сопротивлению, замеренному датчиком давлени  15 под дутьевой решеткой и датчиком давлени  16 над кип щим слоем. Через блокThe fluidized bed level is measured by its resistance, measured by a pressure sensor 15 under the blast grille and a pressure sensor 16 above the fluidized bed. Through block

17сравнени  сигнал подаетс  на регул тор17 comparison signal is fed to the controller

18и исполнительный механизм 19, выпускающий огарок из сло . При изменении расхода сырь  и дуть  измен етс  качество сло , то есть врем  пребывани  частиц и их плотность , выгар серы и концентраци  сернистого ангидрида в обжиговом газе (рис. 2). Следовательно , при изменении расхода воздуха следует мен ть уровень сло . Корректирующее устройство 20, получа  сигнал от датчика 21 об изменении количества загрузки, воздействует на регул тор выгрузки 18.18 and the actuator 19, producing a candle of a layer. When the consumption of raw materials and blowing changes, the quality of the layer, i.e., the residence time of the particles and their density, the sulfur content and the concentration of sulfur dioxide in the calcining gas, changes (Fig. 2). Therefore, when changing the air flow rate, the layer should be changed. Correction device 20, receiving a signal from the sensor 21 on the change in the number of loads, affects the discharge controller 18.

На выходе из печи 2 разрежение замер етс  датчиком 22 и поддерживаетс  регул тором 23, воздействующим на исполнительный механизм 24. При изменении расхода дуть  резко }1арушаетс  гидродинамический и температурный режимы процесса обжига, измен етс  и концентраци  SO2.At the exit of the furnace 2, the vacuum is measured by the sensor 22 and maintained by the controller 23 acting on the actuator 24. When the flow rate changes, the blowing sharply} 1 the hydrodynamic and temperature conditions of the firing process are disrupted, and the SO2 concentration also changes.

Дл  уменьшени  величины отклонени  разрежени  корректирующее устройство 25, включающее в себ  динамическую св зь, подает опережающий сигнал на регул тор 23To reduce the magnitude of the deviation of the vacuum, the correction device 25, which includes a dynamic link, sends a leading signal to the controller 23

eute до того, как произойдет значительное изменение разрежени . Врем  настройки динамической св зи выбрано так, что по истечении времени сигнал исчезает, что обеспечивает работу схемы на заданном режиме.eute before a significant change in vacuum occurs. The tuning time of the dynamic link is chosen so that after the time has elapsed, the signal disappears, which ensures the operation of the circuit in a given mode.

Предмет изобретени Subject invention

Способ автоматического регулировани  процесса обжига в печах кип щего сло , включающий регулирование подачи сырь  в зависимости от разности температур кип щего сло  и обжигового газа, стабилизацию уровн  кип щего сло  и разрежени  после печи, замер количества подсосов по тракту прохождени  обжигового газа и расхода подавае мого в печь дуть , отличающийс  тем что, с целью повышени  качества получаемого продукта, подачу сырь  корректируют пс количеству подсосов в тракте прохождени обжигового газа, а уровень кип щего ело-, и разрежение после печи корректируют соот ветственно по расходу сырь  и дуть , подаThe method of automatic regulation of the firing process in fluidized bed furnaces, including the regulation of the supply of raw materials depending on the temperature difference between the fluidized bed and the firing gas, stabilization of the level of the fluidized bed and vacuum after the furnace, measuring the amount of suction over the firing gas flow furnace to blow, characterized in that, in order to improve the quality of the product obtained, the feed of the raw material is adjusted by the PS to the amount of suction in the passage of the firing gas, and the level of boiling is low and low pressure after the furnace, adjust according to the consumption of raw materials and blow, flow

ваемого в печь.poured into the oven.

.x

SU1819051A 1972-08-08 1972-08-08 The method of automatic control of the firing process in fluidized bed furnaces SU456129A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1819051A SU456129A1 (en) 1972-08-08 1972-08-08 The method of automatic control of the firing process in fluidized bed furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1819051A SU456129A1 (en) 1972-08-08 1972-08-08 The method of automatic control of the firing process in fluidized bed furnaces

Publications (1)

Publication Number Publication Date
SU456129A1 true SU456129A1 (en) 1975-01-05

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SU1819051A SU456129A1 (en) 1972-08-08 1972-08-08 The method of automatic control of the firing process in fluidized bed furnaces

Country Status (1)

Country Link
SU (1) SU456129A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3433302A1 (en) * 1984-09-11 1986-03-20 Saarbergwerke AG, 6600 Saarbrücken Method for controlling the level of a fluidised bed and circuitry for working the method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3433302A1 (en) * 1984-09-11 1986-03-20 Saarbergwerke AG, 6600 Saarbrücken Method for controlling the level of a fluidised bed and circuitry for working the method

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