JPH0130887B2 - - Google Patents
Info
- Publication number
- JPH0130887B2 JPH0130887B2 JP29016585A JP29016585A JPH0130887B2 JP H0130887 B2 JPH0130887 B2 JP H0130887B2 JP 29016585 A JP29016585 A JP 29016585A JP 29016585 A JP29016585 A JP 29016585A JP H0130887 B2 JPH0130887 B2 JP H0130887B2
- Authority
- JP
- Japan
- Prior art keywords
- sonde
- furnace
- seal box
- valve
- blast furnace
- 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.)
- Expired
Links
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 description 7
- 238000012856 packing Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012966 insertion method Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、高炉々内の測定及び内容物のサンプ
リングを行う高炉ゾンデの炉内挿入方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for inserting a blast furnace sonde into a blast furnace for measuring the inside of the blast furnace and sampling the contents.
従来使われている高炉ゾンデの炉内挿入部は、
第２図に示すように弁３、伸縮管４、シールボツ
クス５から構成されたものが多い。ゾンデ６を炉
内に挿入する場合、まずシールボツクス５にゾン
デ６を挿入した状態で弁３を開ける。従つて、シ
ールボツクスのシール性不良の場合は、CO濃度
の高い炉内ガスが噴出し、危険である。
The in-furnace insertion part of the conventionally used blast furnace sonde is
As shown in FIG. 2, many of them are composed of a valve 3, a telescopic tube 4, and a seal box 5. When the sonde 6 is inserted into the furnace, the valve 3 is first opened with the sonde 6 inserted into the seal box 5. Therefore, if the sealing performance of the seal box is poor, gas with a high CO concentration inside the furnace will blow out, which is dangerous.
また炉内に挿入した後、抜き出す場合、特に羽
口に挿入するゾンデでは、ゾンデ６表面に、炉内
のダスト、融着物が付着することがあるが、これ
らが付着したままでシールボツクス５をゾンデ６
が通過する。従つてシールボツクス５のグランド
パツキン１６を傷めると共に、シール性を悪く
し、炉内ガスが噴出し、非常に危険である。 Furthermore, when the sonde is inserted into the furnace and then taken out, dust and fused materials from inside the furnace may adhere to the surface of the sonde 6, especially when the sonde is inserted into the tuyere. Sonde 6
passes. Therefore, the gland packing 16 of the seal box 5 is damaged, the sealing performance is deteriorated, and the gas inside the furnace blows out, which is very dangerous.
本発明はシールボツクスのシール性不良を事前
に検知すること及び、炉内挿入部のゾンデ外面に
付着したダスト、融着物等によりシールボツクス
内のグランドパッキン損傷を防ぐことを目的とす
る。
The object of the present invention is to detect in advance poor sealing performance of the seal box and to prevent damage to the gland packing inside the seal box due to dust, fused materials, etc. adhering to the outer surface of the sonde of the in-furnace insertion part.
シールボツクス５のシール性を事前にチエツク
するため、弁３とシールボツクス５との間に、空
筒７を設ける。空筒７の長さは炉内挿入長に多少
の余裕を加えた長さとしている。そして、空筒７
には、炉内圧以上に空筒内を加圧するための不活
性ガス供給用加圧管８及び、入切りのための加圧
弁９を取り付ける。更に同ガスを排気するための
排気管１０、排気弁１１並びに空筒内の圧力降下
を確認するための圧力計１２を設ける。
In order to check the sealability of the seal box 5 in advance, a hollow cylinder 7 is provided between the valve 3 and the seal box 5. The length of the hollow cylinder 7 is determined by adding some margin to the length of insertion into the furnace. And empty cylinder 7
A pressurizing pipe 8 for supplying inert gas and a pressurizing valve 9 for turning on and off are attached to pressurize the inside of the cylinder above the furnace internal pressure. Furthermore, an exhaust pipe 10 for exhausting the gas, an exhaust valve 11, and a pressure gauge 12 for checking the pressure drop inside the cylinder are provided.
第１図において、ゾンデ６を炉内に挿入する
際、まず、炉内側弁３を閉じてある状態でシール
ボツクス５にゾンデ６の先端を挿入する。この場
合のゾンデ先端位置は、炉内側弁３と、シールボ
ツクス５との間であれば、特定の位置である必要
はないが、停止精度等を考慮して、炉内側弁３と
干渉せず、グランドパツキン１６から外れない位
置に設定する。 In FIG. 1, when inserting the sonde 6 into the furnace, first, the tip of the sonde 6 is inserted into the seal box 5 with the furnace inner valve 3 closed. In this case, the tip of the sonde does not need to be at a specific position as long as it is between the furnace inner valve 3 and the seal box 5, but in consideration of stopping accuracy etc., it should not interfere with the furnace inner valve 3. , and set it in a position where it will not come off from the gland packing 16.
次に排気弁１１が閉であることを確認してから
加圧弁９を開にする。圧力計１２の指示を監視し
ておき、高炉々内圧＋α（αは０以上であれば良
い。実施例では0.5Kg／cm2）になれば加圧弁９を
閉にし、圧力計１２の指示値が降下しないかどう
かを確かめるため、ある時間保持する。この時間
の長さもも特定しないが実施例では２〜５分保持
する。もし圧力が降下する場合は、炉内側弁３と
シールボツクス５との間のゾンデ６本体を含む各
機器の何れかがシール不良ということである。従
つて、点検の上修理をする必要がある。 Next, after confirming that the exhaust valve 11 is closed, the pressurizing valve 9 is opened. The reading on the pressure gauge 12 is monitored, and when the blast furnace internal pressure + α (α is fine as long as it is 0 or more. In the example, it is 0.5 kg/cm 2 ), the pressurizing valve 9 is closed and the reading on the pressure gauge 12 is adjusted. hold for a certain period of time to see if it does not fall. Although the length of this time is not specified, it is held for 2 to 5 minutes in the examples. If the pressure drops, it means that there is a seal failure in any of the equipment, including the main body of the probe 6, between the furnace inner valve 3 and the seal box 5. Therefore, it is necessary to inspect and repair.
次に圧力降下がなければ、炉内側弁３を開きゾ
ンデ６を炉内に挿入する。 Next, if there is no pressure drop, the furnace inner valve 3 is opened and the probe 6 is inserted into the furnace.
所定のサンプリング、測定等を終えたならゾン
デを前記炉内側片３とシールボツクス５の間まで
後退させるが、この時のゾンデ位置はシールボツ
クス５の内面に装着されているグランドパツキン
１６とゾンデ６の炉内挿入部分が当らない位置に
する必要がある。これはゾンデ６の炉内挿入部表
面にはダスト、炉内原料、融体等が付着している
可能性があり、それらがグランドパツキン１６を
傷つけ、グランドパツキンのシール性を悪くする
おそれがあるからである。 After completing the prescribed sampling, measurement, etc., the sonde is moved back to between the furnace inside piece 3 and the seal box 5. At this time, the sonde position is between the gland packing 16 attached to the inner surface of the seal box 5 and the sonde 6. It is necessary to position it so that the part inserted into the furnace does not touch it. This is because there is a possibility that dust, raw material in the furnace, molten material, etc. may be attached to the surface of the part where the sonde 6 is inserted into the furnace, and these may damage the gland packing 16 and deteriorate the sealing performance of the gland packing. It is from.
次に炉内側弁３を閉じて、測定作業完了であ
る。 Next, the furnace inner valve 3 is closed, and the measurement work is completed.
以上、高炉ゾンデ挿入前に各機器のシール性を
確認してから挿入し、後退時は、グランドパツキ
ンをゾンデ表面の付着物等で傷つけることなく、
ゾンデを後退させる。このことによつて不用意に
シール不良に気づかず、炉内ガス或いは炉内容物
を噴出させるという大事故を未然に防ぎ所期の測
定作業を達成することができる。 As mentioned above, before inserting the blast furnace sonde, check the sealing properties of each equipment before inserting it, and when retracting, do not damage the gland packing with deposits on the surface of the sonde.
Move the sonde back. This makes it possible to prevent a major accident in which a seal failure is inadvertently noticed and the furnace gas or furnace contents are blown out, and the desired measurement work can be accomplished.
高温、高圧かつ有毒の高炉ガスを不用意に噴出
させることによつて起こる大事故を未然に防ぎ、
安全第一の測定作業を達成することができる。
To prevent major accidents caused by the careless release of high temperature, high pressure and toxic blast furnace gas,
Safety-first measurement work can be accomplished.
第１図は、本考案に係るゾンデ挿入方法の説明
図、第２図は、従来の高炉ゾンデの側面図であ
る。
１……高炉々壁に設けたゾンデ挿入孔、２……
高炉々壁に設けたガイド管、３……炉内側弁、４
……伸縮管、５……シールボツクス、６……ゾン
デ、７……空筒、８……不活性ガス供給管、９…
…加圧弁、１０……排気管、１１……排気弁、１
２……圧力計。
FIG. 1 is an explanatory diagram of the sonde insertion method according to the present invention, and FIG. 2 is a side view of a conventional blast furnace sonde. 1... Sonde insertion hole provided in the blast furnace wall, 2...
Guide pipe installed on the wall of the blast furnace, 3...Furnace inner valve, 4
... Telescopic pipe, 5 ... Seal box, 6 ... Sonde, 7 ... Empty cylinder, 8 ... Inert gas supply pipe, 9 ...
...Pressure valve, 10...Exhaust pipe, 11...Exhaust valve, 1
2...Pressure gauge.
Claims (1)
なくとも１個以上の弁を設け、該弁とシールボツ
クスとの間にゾンデの停止精度上必要な空筒を設
け、ゾンデを炉内に挿入する際、シールボツクス
にゾンデの先端を挿入した状態で前記弁を閉じた
まま、前記空筒内を不活性ガスで加圧し、その圧
力降下を測定して弁及びシールボツクスのシール
性を検知した後、高炉内にゾンデを挿入すること
を特徴とする高炉ゾンデの炉内挿入方法。1 At least one or more valves are provided on the outside of the sonde insertion hole provided in the blast furnace wall, and a cavity necessary for the accuracy of stopping the sonde is provided between the valve and the seal box, and the sonde is inserted into the furnace. At this time, with the tip of the sonde inserted into the seal box and the valve closed, the inside of the cylinder was pressurized with inert gas, and the pressure drop was measured to detect the sealing performance of the valve and seal box. A method for inserting a blast furnace sonde into a blast furnace, the method comprising: inserting the sonde into the blast furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29016585A JPS62149806A (en) | 1985-12-23 | 1985-12-23 | Method for inserting blast furnace probe into blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29016585A JPS62149806A (en) | 1985-12-23 | 1985-12-23 | Method for inserting blast furnace probe into blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62149806A JPS62149806A (en) | 1987-07-03 |
| JPH0130887B2 true JPH0130887B2 (en) | 1989-06-22 |
Family
ID=17752595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29016585A Granted JPS62149806A (en) | 1985-12-23 | 1985-12-23 | Method for inserting blast furnace probe into blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62149806A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002220608A (en) * | 2001-01-29 | 2002-08-09 | Kobe Steel Ltd | Lance mounting structure |
-
1985
- 1985-12-23 JP JP29016585A patent/JPS62149806A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62149806A (en) | 1987-07-03 |
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