JPS63241124A - Method for controlling temperature of circulating gas for sintering - Google Patents

Method for controlling temperature of circulating gas for sintering

Info

Publication number
JPS63241124A
JPS63241124A JP7556687A JP7556687A JPS63241124A JP S63241124 A JPS63241124 A JP S63241124A JP 7556687 A JP7556687 A JP 7556687A JP 7556687 A JP7556687 A JP 7556687A JP S63241124 A JPS63241124 A JP S63241124A
Authority
JP
Japan
Prior art keywords
temp
deviation
gas
circulating gas
pressure
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.)
Pending
Application number
JP7556687A
Other languages
Japanese (ja)
Inventor
Yoshiki Nakahara
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP7556687A priority Critical patent/JPS63241124A/en
Publication of JPS63241124A publication Critical patent/JPS63241124A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve productivity of a sintering machine of an exhaust gas circulation system without degrading cold strength, by controlling a temp.of circulating gas by adjustment of steam pressure in an evaporation part of a waste heat boiler through which an exhaust gas is passed.
CONSTITUTION: The exhaust gas is sucked from the sintering machine and after the gas is passed through the waste heat boiler 11, the gas is returned to the sintering machine. The temp. (t) of the circulating gas is measured by a thermometer 30 and a deviation Δt between the temp. (t) and optimum temp. t0 is calculated. The stored data on the relation between the temp. of the circulating gas and the steam pressure and the deviation Δt are compared and the steam pressure P0 necessary for decreasing the deviation Δt to 0 is computed. On the other hand, feed water B is preheated and is sent through a boiler drum 25a to an evaporator 11b. The steam pressure (p) in the drum 25a is measured by a pressure gage 35 and the deviation Δp from the pressure p0 is computed. The opening degree of a pressure control valve 34 is so controlled as to decrease the deviation to 0. The temp. of the circulating gas is thereby controlled according to the meltability of sintered ore.
COPYRIGHT: (C)1988,JPO&Japio
JP7556687A 1987-03-27 1987-03-27 Method for controlling temperature of circulating gas for sintering Pending JPS63241124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7556687A JPS63241124A (en) 1987-03-27 1987-03-27 Method for controlling temperature of circulating gas for sintering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7556687A JPS63241124A (en) 1987-03-27 1987-03-27 Method for controlling temperature of circulating gas for sintering

Publications (1)

Publication Number Publication Date
JPS63241124A true JPS63241124A (en) 1988-10-06

Family

ID=13579858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7556687A Pending JPS63241124A (en) 1987-03-27 1987-03-27 Method for controlling temperature of circulating gas for sintering

Country Status (1)

Country Link
JP (1) JPS63241124A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100388047B1 (en) * 1999-10-29 2003-06-18 주식회사 포스코 Apparatus and method for controlling temperature in boiler
CN101832572A (en) * 2010-03-19 2010-09-15 湖南永清环保股份有限公司 Method for leading flue gas out of sintering flue gas waste heat utilization system without using induced draft fan
JP2013024522A (en) * 2011-07-25 2013-02-04 Nippon Steel & Sumitomo Metal Corp Method for control of exhaust heat recovery equipment in sintered ore cooling machine
CN106382823A (en) * 2016-08-30 2017-02-08 中信重工机械股份有限公司 Coupling energy saving device for multiple products of sintering procedure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100388047B1 (en) * 1999-10-29 2003-06-18 주식회사 포스코 Apparatus and method for controlling temperature in boiler
CN101832572A (en) * 2010-03-19 2010-09-15 湖南永清环保股份有限公司 Method for leading flue gas out of sintering flue gas waste heat utilization system without using induced draft fan
JP2013024522A (en) * 2011-07-25 2013-02-04 Nippon Steel & Sumitomo Metal Corp Method for control of exhaust heat recovery equipment in sintered ore cooling machine
CN106382823A (en) * 2016-08-30 2017-02-08 中信重工机械股份有限公司 Coupling energy saving device for multiple products of sintering procedure

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