JPS5520633A - Process control method of wet type lime gypsum method exhaust gas desulfurization apparatus - Google Patents

Process control method of wet type lime gypsum method exhaust gas desulfurization apparatus

Info

Publication number
JPS5520633A
JPS5520633A JP9312378A JP9312378A JPS5520633A JP S5520633 A JPS5520633 A JP S5520633A JP 9312378 A JP9312378 A JP 9312378A JP 9312378 A JP9312378 A JP 9312378A JP S5520633 A JPS5520633 A JP S5520633A
Authority
JP
Japan
Prior art keywords
oxidation tower
signal
converted
flow rate
rate
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP9312378A
Other languages
Japanese (ja)
Other versions
JPS5742371B2 (en
Inventor
Toshihiko Sugiyama
Osamu Iijima
Takayuki Fujimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Miike Machinery Co Ltd
Mitsui Miike Engineering Corp
Original Assignee
Mitsui Miike Machinery Co Ltd
Mitsui Miike Engineering Corp
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 Mitsui Miike Machinery Co Ltd, Mitsui Miike Engineering Corp filed Critical Mitsui Miike Machinery Co Ltd
Priority to JP9312378A priority Critical patent/JPS5520633A/en
Publication of JPS5520633A publication Critical patent/JPS5520633A/en
Publication of JPS5742371B2 publication Critical patent/JPS5742371B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Treating Waste Gases (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

PURPOSE: To minimize the use amount of absorbents and stabilize the operation of the apparatus by incorporating the controls such as of replenishment rate of absorbents, desulfurization rates, quality of product gypsum, etc. into one system and simultaneously controlling these.
CONSTITUTION: SO2 density 1 and gas flow rate 2 of the gas introduced into the apparatus are converted to electric signals which are then put into an adder 3 to calculate SO2 quantity. This signal is converted 4 to oxidation tower 23 extract liquid flow rate. At the same time, the pH value 5 of the oxidation tower is measured and is converted 6 to oxidation tower extract liquid flow rate. These 2 signals and the signal of an oxidation tower extract liquid flow rate flow bias setter 7 is added 8, from which value the oxidation tower extract liquid flow rate D is controlled by a flow controller 9, flow control valve 10 and flowmeter 11. On the other hand, the value of the flowmeter 11 is converted 12 to an absorbent replenishment rate signal, which is then multiplied 14 by the signal from a circulating liquid concentration setter 13 to determine the absorbent liquid replenishment rate. This signal is corrected 17 by the detection signals 15, 16 to cause the absorbent C replenishment rate be controlled by a flow controller 18, control valve 19 and flowmeter 20. Grading of product gypsum is accomplished by the control of pH of the oxidation tower.
COPYRIGHT: (C)1980,JPO&Japio
JP9312378A 1978-08-01 1978-08-01 Process control method of wet type lime gypsum method exhaust gas desulfurization apparatus Granted JPS5520633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9312378A JPS5520633A (en) 1978-08-01 1978-08-01 Process control method of wet type lime gypsum method exhaust gas desulfurization apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9312378A JPS5520633A (en) 1978-08-01 1978-08-01 Process control method of wet type lime gypsum method exhaust gas desulfurization apparatus

Publications (2)

Publication Number Publication Date
JPS5520633A true JPS5520633A (en) 1980-02-14
JPS5742371B2 JPS5742371B2 (en) 1982-09-08

Family

ID=14073737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9312378A Granted JPS5520633A (en) 1978-08-01 1978-08-01 Process control method of wet type lime gypsum method exhaust gas desulfurization apparatus

Country Status (1)

Country Link
JP (1) JPS5520633A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582692A (en) * 1983-04-26 1986-04-15 Mitsubishi Jukogyo Kabushiki Kaisha Method of control for a wet lime-gypsum process desulfurization plant
US4836991A (en) * 1986-04-23 1989-06-06 Babcock-Hitachi Kabushiki Kaisha Method for controlling wet-process flue gas desulfurization
US5505854A (en) * 1994-09-09 1996-04-09 Electric Power Research Institute Two continuous filtration system for supplying filtrate to automatic analyzers
JP2008032242A (en) * 2006-07-26 2008-02-14 Calsonic Kansei Corp Radiator with built-in oil cooler
CN102580432A (en) * 2011-04-21 2012-07-18 庄建中 Fume dedusting, desulfurating and denitriding integrated process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582692A (en) * 1983-04-26 1986-04-15 Mitsubishi Jukogyo Kabushiki Kaisha Method of control for a wet lime-gypsum process desulfurization plant
US4836991A (en) * 1986-04-23 1989-06-06 Babcock-Hitachi Kabushiki Kaisha Method for controlling wet-process flue gas desulfurization
US5505854A (en) * 1994-09-09 1996-04-09 Electric Power Research Institute Two continuous filtration system for supplying filtrate to automatic analyzers
JP2008032242A (en) * 2006-07-26 2008-02-14 Calsonic Kansei Corp Radiator with built-in oil cooler
CN102580432A (en) * 2011-04-21 2012-07-18 庄建中 Fume dedusting, desulfurating and denitriding integrated process

Also Published As

Publication number Publication date
JPS5742371B2 (en) 1982-09-08

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