JPS57185936A - Treatment of electric furnace dust - Google Patents

Treatment of electric furnace dust

Info

Publication number
JPS57185936A
JPS57185936A JP7253281A JP7253281A JPS57185936A JP S57185936 A JPS57185936 A JP S57185936A JP 7253281 A JP7253281 A JP 7253281A JP 7253281 A JP7253281 A JP 7253281A JP S57185936 A JPS57185936 A JP S57185936A
Authority
JP
Japan
Prior art keywords
slag
valve
bubbling
dust
pellets
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
JP7253281A
Other languages
Japanese (ja)
Other versions
JPS6028896B2 (en
Inventor
Takuma Tsubura
Takashi Oshiumi
Masao Tomari
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.)
NIHON JIRIYOKU SENKOU KK
Nippon Jiryoku Senko Co Ltd
Original Assignee
NIHON JIRIYOKU SENKOU KK
Nippon Jiryoku Senko Co 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 NIHON JIRIYOKU SENKOU KK, Nippon Jiryoku Senko Co Ltd filed Critical NIHON JIRIYOKU SENKOU KK
Priority to JP56072532A priority Critical patent/JPS6028896B2/en
Publication of JPS57185936A publication Critical patent/JPS57185936A/en
Publication of JPS6028896B2 publication Critical patent/JPS6028896B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

PURPOSE: To immobilize residual harmful materials in slag and to make them unharmful by blowing the pellets of electric furnace dust contg. reducing agents together with a bubbling gas into molten slag and recovering the evaporating oxides consisting essentially of zinc and lead efficiently.
CONSTITUTION: A slag pan 2 contg. molten slag 1 is contained in a dust treating chamber 3, and a lance 5 supplied with pressurized air by opening a valve 4 is charged into the slag 1, thereby bubbling the slag. In this state, a valve 6 is opened to charge the pellets of electric furnace dust contg. coke powder at prescribed ratios from a hopper 7. The valve 6 is closed to supply the air alone, thereby bubbling the slag as after-blowing. At the point of the time when virtually no volatile materials are left, the lance 5 is pulled up from the slag 1 and the valve 4 is closed. The volatile dusts consisting essentially of oxides of Zn and Pb produced during said bubbling are recovered with a dust collector. The slag 1 is cooled and the harmful materials in the dust pellets are immobilized and made unharmful.
COPYRIGHT: (C)1982,JPO&Japio
JP56072532A 1981-05-12 1981-05-12 How to treat electric furnace dust Expired JPS6028896B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56072532A JPS6028896B2 (en) 1981-05-12 1981-05-12 How to treat electric furnace dust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56072532A JPS6028896B2 (en) 1981-05-12 1981-05-12 How to treat electric furnace dust

Publications (2)

Publication Number Publication Date
JPS57185936A true JPS57185936A (en) 1982-11-16
JPS6028896B2 JPS6028896B2 (en) 1985-07-08

Family

ID=13492043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56072532A Expired JPS6028896B2 (en) 1981-05-12 1981-05-12 How to treat electric furnace dust

Country Status (1)

Country Link
JP (1) JPS6028896B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60184643A (en) * 1984-02-29 1985-09-20 Nippon Jiryoku Senko Kk Treating device for dust and sludge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60184643A (en) * 1984-02-29 1985-09-20 Nippon Jiryoku Senko Kk Treating device for dust and sludge
JPH0125817B2 (en) * 1984-02-29 1989-05-19 Nippon Jiryoku Senko

Also Published As

Publication number Publication date
JPS6028896B2 (en) 1985-07-08

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