JPS5582717A - Charging method for granular slag-making agent to reaction furnace - Google Patents

Charging method for granular slag-making agent to reaction furnace

Info

Publication number
JPS5582717A
JPS5582717A JP15496278A JP15496278A JPS5582717A JP S5582717 A JPS5582717 A JP S5582717A JP 15496278 A JP15496278 A JP 15496278A JP 15496278 A JP15496278 A JP 15496278A JP S5582717 A JPS5582717 A JP S5582717A
Authority
JP
Japan
Prior art keywords
gas
granular
cast iron
pipe
top end
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
JP15496278A
Other languages
Japanese (ja)
Inventor
Masae Ishibashi
Hirobumi Wakimoto
Satomi Yamamoto
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
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP15496278A priority Critical patent/JPS5582717A/en
Publication of JPS5582717A publication Critical patent/JPS5582717A/en
Pending legal-status Critical Current

Links

Landscapes

  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE: To improve refining efficiency and to reduce the cost of the equipment for addn. of Na2CO3 in desulfurization and dephosphorization of cast iron with Na2CO3, by blowing granular Na2CO3 into cast iron by use of oxidizing gas as a carrier gas.
CONSTITUTION: The branch pipe 4 of a gas-conveying pipe 3 is inserted into a reserving tank 1 for granular Na2CO3, and the top end is positioned near the rotary valve 2 of the reserving tank 1. The top end of the gas pipe 3 forms an ejector 6 under the rotary valve 2. An oxidizing compressed gas such as air is passed through the gas pipe 3 and is injected through the top end which forms the ejector 6. Granular Na2CO3 held in the reserving tank 1 is cut out by the rotary valve 2, and is blown into the cast iron contained in a closed furnace through the pipe 3 and the opening 7 of the furnace. Being granular, not briquette-shaped, the Na2CO3 is easily blown into the cast iron, exhibiting excellent effect in refining such as dephosphorization.
COPYRIGHT: (C)1980,JPO&Japio
JP15496278A 1978-12-18 1978-12-18 Charging method for granular slag-making agent to reaction furnace Pending JPS5582717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15496278A JPS5582717A (en) 1978-12-18 1978-12-18 Charging method for granular slag-making agent to reaction furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15496278A JPS5582717A (en) 1978-12-18 1978-12-18 Charging method for granular slag-making agent to reaction furnace

Publications (1)

Publication Number Publication Date
JPS5582717A true JPS5582717A (en) 1980-06-21

Family

ID=15595703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15496278A Pending JPS5582717A (en) 1978-12-18 1978-12-18 Charging method for granular slag-making agent to reaction furnace

Country Status (1)

Country Link
JP (1) JPS5582717A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118807A (en) * 1982-12-27 1984-07-09 Tokuyama Soda Co Ltd Soda ash for steel refining
JPS61111954U (en) * 1984-12-24 1986-07-15
JPS61210109A (en) * 1985-03-14 1986-09-18 Nippon Kokan Kk <Nkk> Method for removing impurities from hot metal in the middle of the tap hole
KR100736883B1 (en) * 2007-01-03 2007-07-06 주식회사 대진테크닉 Subsidiary material input device for steelmaking and steelmaking

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118807A (en) * 1982-12-27 1984-07-09 Tokuyama Soda Co Ltd Soda ash for steel refining
JPS61111954U (en) * 1984-12-24 1986-07-15
JPS61210109A (en) * 1985-03-14 1986-09-18 Nippon Kokan Kk <Nkk> Method for removing impurities from hot metal in the middle of the tap hole
KR100736883B1 (en) * 2007-01-03 2007-07-06 주식회사 대진테크닉 Subsidiary material input device for steelmaking and steelmaking

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