JPS56163205A - Blast furnace operation method which is superior in preventing occurrence of slip - Google Patents
Blast furnace operation method which is superior in preventing occurrence of slipInfo
- Publication number
- JPS56163205A JPS56163205A JP6593580A JP6593580A JPS56163205A JP S56163205 A JPS56163205 A JP S56163205A JP 6593580 A JP6593580 A JP 6593580A JP 6593580 A JP6593580 A JP 6593580A JP S56163205 A JPS56163205 A JP S56163205A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- temp
- pressure drop
- values
- occurrence
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/006—Automatically controlling the process
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
PURPOSE:To make the excess or shortage of the gas flow near the furnace wall and the shape of the inactive zone in the furnace that can be cause for occurrence of slips proper and prevent their occurrence by maintaining the infurnace pressure drop detected in the lower part of a blast furnace and the temp. in a furnace body cooler within a proper control range. CONSTITUTION:The indicated values of the infurnace pressure drop in the lower part of the furnace and the temp. in a cooling device indicate the adequateness of the gas flow and inactive zone near the furnace wall. Hence, if the above-mentioned two measured values as indexes are controlled within a desirable range to be obtained empirically by controlling charge distributions, the rate of blast, the temp. of blast, etc., the slips of charge in oil-less operation in particular can be effectively prevented. Namely, the pressure drop in the lower part of the furnace and the temp. of the furnace body cooling device are measured, the values thereof are made into indexes and whether they are maintained at proper values or not are operated. The charge distributions are adjusted by the outputs thereof and the furnace is so operated as to attain the correct pressure drop value and temp. value, whereby the occurrence of slips is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55065935A JPS5910967B2 (en) | 1980-05-20 | 1980-05-20 | Blast furnace operating method excellent in preventing slip occurrence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55065935A JPS5910967B2 (en) | 1980-05-20 | 1980-05-20 | Blast furnace operating method excellent in preventing slip occurrence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56163205A true JPS56163205A (en) | 1981-12-15 |
| JPS5910967B2 JPS5910967B2 (en) | 1984-03-13 |
Family
ID=13301307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55065935A Expired JPS5910967B2 (en) | 1980-05-20 | 1980-05-20 | Blast furnace operating method excellent in preventing slip occurrence |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5910967B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50112203A (en) * | 1974-02-13 | 1975-09-03 |
-
1980
- 1980-05-20 JP JP55065935A patent/JPS5910967B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50112203A (en) * | 1974-02-13 | 1975-09-03 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5910967B2 (en) | 1984-03-13 |
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