JPS6219924Y2 - - Google Patents
Info
- Publication number
- JPS6219924Y2 JPS6219924Y2 JP1981183509U JP18350981U JPS6219924Y2 JP S6219924 Y2 JPS6219924 Y2 JP S6219924Y2 JP 1981183509 U JP1981183509 U JP 1981183509U JP 18350981 U JP18350981 U JP 18350981U JP S6219924 Y2 JPS6219924 Y2 JP S6219924Y2
- Authority
- JP
- Japan
- Prior art keywords
- furnace wall
- furnace
- pressure fluid
- pressure
- 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
- 239000012530 fluid Substances 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 12
- 230000003628 erosive effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- 239000011823 monolithic refractory Substances 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
【考案の詳細な説明】
本考案は高炉炉壁の厚みを圧力流体の背圧を利
用して任意の所定の間隔で検出できる装置に関す
るものである。[Detailed Description of the Invention] The present invention relates to a device that can detect the thickness of a blast furnace wall at arbitrary predetermined intervals by using the back pressure of a pressure fluid.
圧力流体の背圧変化により高炉炉壁の損傷を検
出する方法としては、例えば特開昭52−35104号
のような公知例がある。この公知例では炉壁の損
傷をある一定の間隔で検出する方法として、各々
の検出センサーの長さを変えて炉壁に埋設するか
あるいは同一センサー内に炉壁厚み方向に抵抗体
を設けたものについて提唱している。 As a method of detecting damage to a blast furnace wall by a change in back pressure of a pressure fluid, there is a known example such as Japanese Patent Application Laid-Open No. 52-35104. In this known example, as a method for detecting damage to the furnace wall at certain intervals, the length of each detection sensor is changed and it is buried in the furnace wall, or a resistor is installed in the same sensor in the thickness direction of the furnace wall. I'm advocating something.
しかしながら公知例特開昭52−35104号では、
検出センサーを複数、長さを変えて埋設する
ので、炉壁に多数の開口を必要とするため炉壁
にとつては好ましくない。 However, in the known example, JP-A No. 52-35104, a plurality of detection sensors are buried at different lengths, which requires a large number of openings in the furnace wall, which is not preferable for the furnace wall.
実際の炉壁においては、損傷面附近に多数の
亀裂が生じ、圧力流体が必らずしも損傷面から
吐出せず、炉壁内で洩れる可能性がある。 In an actual furnace wall, many cracks occur near the damaged surface, and the pressure fluid may not necessarily be discharged from the damaged surface, but may leak within the furnace wall.
などの問題点がある。There are problems such as:
また、前記公知例の第７図に示してある同一セ
ンサー内に設けた抵抗体の具体的構造および作用
については明確となつていない。さらに、前記公
知例では各抵抗体で仕切られた各室への圧力流体
の封入方法が明示されていない。 Further, the specific structure and operation of the resistor provided in the same sensor shown in FIG. 7 of the prior art is not clear. Furthermore, in the known example, a method for filling pressure fluid into each chamber partitioned by each resistor is not clearly disclosed.
本考案は上記問題点を解決し、炉壁の厚み方向
に任意の所定間隔で炉壁損傷推移の検出が可能な
具体的構造の装置を提供するものである。 The present invention solves the above-mentioned problems and provides an apparatus having a specific structure that allows the detection of changes in damage to the furnace wall at arbitrary predetermined intervals in the thickness direction of the furnace wall.
すなわち本願の技術的課題は、
(イ) 高炉炉壁に圧力変動を把握する手段を設ける
ときその埋設のための開口数を少くして、炉壁
の堅牢性を維持できるようにすること、
(ロ) 精度よく炉壁の損傷推移を把握でき、かつ補
修壁の耐火物の寿命推定が可能であること
等にある。 In other words, the technical problems of the present application are (a) To maintain the robustness of the furnace wall by reducing the number of openings for embedding it when providing a means for monitoring pressure fluctuations in the blast furnace wall; b) It is possible to grasp the damage transition of the furnace wall with high accuracy, and it is also possible to estimate the lifespan of the refractories in the repaired wall.
そして本考案の特徴とするところは、圧力流体
の背圧変化により高炉炉壁の侵食状態を検出する
装置において、炉壁の長さ方向の同一軸上に炉内
圧力よりも高い一定の圧力流体を封入した複数の
仕切板４を設けた仕切室６を設け、これら仕切室
６を圧力流体導入管７により炉外２０に設けた圧
力測定器８を介して圧力流体発生器１０に接続し
て構成した高炉炉壁の厚み検出装置である。 The feature of the present invention is that in a device that detects the state of erosion of the blast furnace wall based on changes in the back pressure of the pressure fluid, a constant pressure fluid higher than the pressure inside the furnace is placed on the same axis along the length of the furnace wall. A partition chamber 6 is provided in which a plurality of partition plates 4 are enclosed, and these partition chambers 6 are connected to a pressure fluid generator 10 through a pressure fluid introduction pipe 7 and a pressure measuring device 8 provided outside the furnace 20. This is the constructed blast furnace wall thickness detection device.
以下、本考案の構成を図面にもとづき説明す
る。 Hereinafter, the configuration of the present invention will be explained based on the drawings.
第１図において、１は高炉鉄皮で、２は鉄皮１
を保護している炉壁、３は炉壁２に埋設した炉壁
厚み検出センサーである。４は炉壁２の損傷状況
を所定の厚みで検出するための仕切板であり、図
示の如く厚み方向に複数枚設けて仕切室６を複数
個形成する。該仕切室６内には圧力流体が封じ込
められる。ここに圧力流体は高炉操業に支障のな
いものであれば限定されない。尚、圧力流体は炉
内圧力よりも大きい、例えば２Kg／cm2以上の安定
した圧力とせねばならない。 In Figure 1, 1 is the blast furnace shell, 2 is the shell 1
3 is a furnace wall thickness detection sensor embedded in the furnace wall 2. Reference numeral 4 denotes a partition plate for detecting the damage state of the furnace wall 2 at a predetermined thickness, and as shown in the figure, a plurality of partition plates are provided in the thickness direction to form a plurality of partition chambers 6. Pressure fluid is confined within the partition chamber 6. The pressure fluid here is not limited as long as it does not interfere with blast furnace operation. Note that the pressure fluid must have a stable pressure higher than the pressure inside the furnace, for example, 2 kg/cm 2 or more.
また、７は各仕切室６に圧力流体を送り込む導
管であり、各々圧力測定器８、バルブ９を介して
圧力流体発生器１０に連結されている。１１は炉
壁厚み検出センサー３を炉壁２内に挿入後、鉄皮
に設けられた短管１２にたとえばフランジを介し
て固定する治具である。又、該治具１１は高温、
有毒の炉内ガスが炉外に流出してくるのを防止す
るためシール耐火物１３を圧入する短管１４と圧
入コツク１５を備えている。耐火物１３は仕切室
６外周の治具１１内を埋めることになる。１６は
炉壁の損傷位置を検出するラインである。 Further, 7 is a conduit for feeding pressure fluid into each partition chamber 6, and is connected to a pressure fluid generator 10 via a pressure measuring device 8 and a valve 9, respectively. Reference numeral 11 denotes a jig for inserting the furnace wall thickness detection sensor 3 into the furnace wall 2 and then fixing it to a short pipe 12 provided in the steel shell, for example, via a flange. Moreover, the jig 11 is at high temperature,
In order to prevent toxic furnace gas from flowing out of the furnace, a short pipe 14 into which a sealing refractory 13 is press-fitted and a press-fitting pot 15 are provided. The refractory 13 fills the inside of the jig 11 around the outer periphery of the partition chamber 6. 16 is a line for detecting a damaged position on the furnace wall.
以上のような構成のもとに、本考案装置は以下
のように作用する。 Based on the above configuration, the device of the present invention operates as follows.
第１図において、炉壁２に埋設された炉壁厚み
検出センサー３の炉内側仕切板４が炉壁２の損傷
ライン１６に達すると、炉内の高温ガス、装入物
降下等により仕切板４は損傷する。このとき、仕
切室６に封入されていた圧力流体は仕切室内圧力
よりも低い炉内側１９へ吐出し、圧力測定器８の
圧力指示値は降下する。したがつて、この圧力指
示値を連続的に各々の仕切室６について記録させ
ておけば高炉の体風毎に炉壁開口し、壁厚を測定
することなしに炉壁の損傷推移を容易に把握する
ことが可能である。 In FIG. 1, when the furnace inner partition plate 4 of the furnace wall thickness detection sensor 3 buried in the furnace wall 2 reaches the damage line 16 of the furnace wall 2, the partition plate 4 is damaged. At this time, the pressure fluid sealed in the partition chamber 6 is discharged to the inside of the furnace 19, which has a lower pressure than the pressure in the partition chamber, and the pressure indication value of the pressure measuring device 8 decreases. Therefore, if this pressure indication value is continuously recorded for each partition chamber 6, the furnace wall can be opened for each blast furnace body, and damage to the furnace wall can be easily monitored without measuring the wall thickness. It is possible to understand.
検出センサー３の炉内側１９第１番目の仕切板
４が損傷した場合に、炉内ガスが炉外に流出しな
いようにするためには圧力流体が高炉操業に支障
ないものであればそのまま圧力流体を炉内に送り
込んでも良いが、圧力流体を止めたい場合には圧
力流体封入導管７に取付けてあるバルブ９を閉と
し、図示していないが該導管７に耐火物圧入短管
を取付け、該導管７に耐火物を圧入する方法もあ
る。 In order to prevent the gas inside the furnace from flowing out of the furnace when the first partition plate 4 on the inside of the furnace 19 of the detection sensor 3 is damaged, if the pressure fluid does not interfere with blast furnace operation, the pressure fluid can be removed as is. may be fed into the furnace, but if it is desired to stop the pressure fluid, close the valve 9 attached to the pressure fluid sealing conduit 7, attach a refractory press-fit short pipe to the conduit 7 (not shown), and Another method is to press-fit a refractory into the conduit 7.
第３図は本考案の他の実施例を示したもので減
尺操業した後、炉壁損傷箇所に炉内から不定形耐
火物を吹付補修する場合において使用されるもの
である。吹付補修しようとする高炉炉壁２の損傷
部に前記検出センサー３を吹付補修壁１８の厚み
分だけ炉内側に挿入し、前述した第１図のごとく
固定、取付する。この状態において炉内より吹付
ノズル１７にて不定形耐火物を吹付け、補修壁１
８を形成させ、以降は前述した第１図の実施例の
ように使用すればよい。 FIG. 3 shows another embodiment of the present invention, which is used when repairing damaged parts of the furnace wall by spraying monolithic refractories from inside the furnace after a scale reduction operation. The detection sensor 3 is inserted into the damaged part of the blast furnace furnace wall 2 to be repaired by spraying, and is fixed and attached as shown in FIG. In this state, a monolithic refractory is sprayed from inside the furnace with the spray nozzle 17, and the repaired wall 1 is
8 and thereafter used as in the embodiment shown in FIG. 1 described above.
尚、これら高炉減尺操業、炉内より不定形耐火
物を吹付し、補修壁を形成する技術は、例えば本
願出願人が提案している特開昭54−26203号、特
開昭55−50409号、特開昭55−50410号、他により
行なえばよい。 Incidentally, these blast furnace scale reduction operations and techniques for spraying monolithic refractories from inside the furnace to form repair walls are disclosed, for example, in Japanese Patent Application Laid-Open No. 54-26203 and No. 55-50409 proposed by the applicant of the present invention. No., JP-A No. 55-50410, and others.
以上の如く本考案の装置を高炉炉壁の適当な箇
所に設けることにより、前述の公知例特開昭52−
35104号よりも炉壁への開口数が少いので、炉壁
の堅牢性維持を図ることができるばかりか、確実
に精度よく炉壁損傷の推移状況が把握でき、かつ
補修壁の耐火物の寿命推定が可能で高炉操業上極
めて有益な効果を発揮する。 As described above, by installing the device of the present invention at an appropriate location on the blast furnace wall, it is possible to
Since the number of openings in the furnace wall is smaller than that of No. 35104, it is possible not only to maintain the robustness of the furnace wall, but also to accurately grasp the progress of damage to the furnace wall, and to repair the refractories of the repaired wall. It is possible to estimate the lifespan and has an extremely beneficial effect on blast furnace operation.
第１図は本考案の装置を高炉炉壁に埋設した実
施例を示す説明図、第２図は第１図の本考案装置
の断面Ａ−A′を示し、第３図は本考案装置の他
の実施例を示すものである。
１……高炉鉄皮、２……高炉炉壁、３……炉壁
厚み検出センサー、４……仕切板、６……仕切
室、７……圧力流体導入管、８……圧力測定器、
９……圧力流体バルブ、１０……圧力流体発生
器、１１……検出センサー固定治具、１２……固
定短管、１３……シール耐火物、１４……圧入短
管、１５……圧入コツク、１６……炉壁損傷ライ
ン、１７……吹付ノズル、１８……補修炉壁、１
９……炉内、２０……炉外。
Fig. 1 is an explanatory view showing an embodiment in which the device of the present invention is embedded in the wall of a blast furnace, Fig. 2 shows a cross section A-A' of the device of the present invention in Fig. 1, and Fig. 3 shows the device of the present invention. Another example is shown. DESCRIPTION OF SYMBOLS 1... Blast furnace shell, 2... Blast furnace wall, 3... Furnace wall thickness detection sensor, 4... Partition plate, 6... Partition chamber, 7... Pressure fluid introduction pipe, 8... Pressure measuring device,
9...Pressure fluid valve, 10...Pressure fluid generator, 11...Detection sensor fixing jig, 12...Fixed short pipe, 13...Seal refractory, 14...Press-fit short pipe, 15...Press-fit pot , 16... Furnace wall damage line, 17... Spraying nozzle, 18... Repair furnace wall, 1
9...Inside the furnace, 20...Outside the furnace.
Claims (1)
を検出する装置において、炉壁の長さ方向の同一
軸上に炉内圧力よりも高い一定の圧力流体を封入
した複数の仕切板４を設けた仕切室６を設け、こ
れら仕切室６を圧力流体導入管７により炉外２０
に設けた圧力測定器８を介して圧力流体発生器１
０に接続して構成した高炉炉壁の厚み検出装置。 In a device for detecting the erosion state of a blast furnace wall based on a change in back pressure of a pressure fluid, a plurality of partition plates 4 filled with a constant pressure fluid higher than the pressure inside the furnace are provided on the same axis in the length direction of the furnace wall. partition chambers 6 are provided, and these partition chambers 6 are connected to the outside of the furnace 20 through a pressure fluid introduction pipe 7.
Pressure fluid generator 1 via pressure measuring device 8 provided in
A blast furnace wall thickness detection device configured by connecting to 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18350981U JPS5888106U (en) | 1981-12-11 | 1981-12-11 | Blast furnace wall thickness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18350981U JPS5888106U (en) | 1981-12-11 | 1981-12-11 | Blast furnace wall thickness detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5888106U JPS5888106U (en) | 1983-06-15 |
| JPS6219924Y2 true JPS6219924Y2 (en) | 1987-05-21 |
Family
ID=29982833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18350981U Granted JPS5888106U (en) | 1981-12-11 | 1981-12-11 | Blast furnace wall thickness detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5888106U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6879267B2 (en) * | 2018-06-11 | 2021-06-02 | Ｊｆｅスチール株式会社 | Refractory lining structure and temperature sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS537260A (en) * | 1976-07-08 | 1978-01-23 | Kobe Steel Ltd | Method of detecting wear |
-
1981
- 1981-12-11 JP JP18350981U patent/JPS5888106U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS537260A (en) * | 1976-07-08 | 1978-01-23 | Kobe Steel Ltd | Method of detecting wear |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5888106U (en) | 1983-06-15 |
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