JPS6239210B2 - - Google Patents
Info
- Publication number
- JPS6239210B2 JPS6239210B2 JP23325882A JP23325882A JPS6239210B2 JP S6239210 B2 JPS6239210 B2 JP S6239210B2 JP 23325882 A JP23325882 A JP 23325882A JP 23325882 A JP23325882 A JP 23325882A JP S6239210 B2 JPS6239210 B2 JP S6239210B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- furnace
- steel material
- steel
- zone
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000011295 pitch Substances 0.000 claims 1
- 238000005070 sampling Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
Description
【発明の詳細な説明】
本発明は、連続式加熱炉の燃焼制御に関し、そ
の目的とするところは、品質面や圧延操業面から
要求される各種のヒートパターンを容易に得るこ
とができ、さらに省エネ操炉にみあうように効率
よく燃焼制御する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to combustion control for a continuous heating furnace, and its purpose is to easily obtain various heat patterns required from the viewpoint of quality and rolling operation. This article relates to a method for efficiently controlling combustion to meet energy-saving furnace operation.
従来、連続式加熱炉の燃焼方法は、第１図、第
２図に示すように炉Ｆの予熱帯１、加熱帯２、均
熱帯３の各帯の温度設定に基づき、各帯に所要空
気量と燃料（重油あるいはコークスガス等）を供
給し、各帯に取付けられた熱電対温度計によつて
雰囲気温度を検出し、温度設定を修正していくよ
うな雰囲気の自動燃焼制御が用いられており、こ
のような制御により材料を加熱し、均熱状態を保
つて所定の抽出温度を得ている。なお図で４〜６
はバーナー、７，８は温度計、９は装入口、１０
は抽出口である。 Conventionally, the combustion method of continuous heating furnaces is based on the temperature setting of each zone of preheating zone 1, heating zone 2, and soaking zone 3 of furnace F, as shown in Figures 1 and 2. Automatic combustion control of the atmosphere is used, in which the amount and fuel (heavy oil or coke gas, etc.) are supplied, the ambient temperature is detected by a thermocouple thermometer attached to each zone, and the temperature setting is corrected. Through such control, the material is heated and maintained at a uniform temperature to obtain a predetermined extraction temperature. In addition, 4 to 6 in the figure
is the burner, 7 and 8 are the thermometers, 9 is the charging port, 10
is the extraction port.
しかしながらこのような雰囲気制御において
は、第３図に示すような品質面および圧延操業面
から要求される各種のヒートパターンＰ１〜Ｐ４
をつくりだすには、操炉オペレーターによる各帯
の雰囲気温度管理等の操炉状態管理が複雑とな
り、かつ実際の鋼材温度の確認作業等作業負荷も
莫大になる欠点がある。なおヒートパターンＰ１
は高温抽出パターン、Ｐ２は通常パターン、Ｐ３
は急速加熱パターン、Ｐ４は低温抽出パターンで
ある。また、鋼材自身の温度としては抽出口にお
ける温度測定結果しか得られないため、炉内雰囲
気の適切な設定温度は経験によるところが多く、
時には焼すぎのケースが発生したり、逆に焼ムラ
となるケースが生じたりする欠点がある。 However, in such atmosphere control, various heat patterns P1 to P4 required from the quality and rolling operation aspects as shown in FIG.
In order to create this, the furnace operating condition management such as atmospheric temperature control in each zone by the furnace operator becomes complicated, and the work load such as confirmation of the actual steel material temperature is also enormous. Furthermore, the heat pattern P1
is high temperature extraction pattern, P2 is normal pattern, P3
is a rapid heating pattern, and P4 is a low temperature extraction pattern. In addition, since the temperature of the steel material itself can only be obtained from the temperature measurement result at the extraction port, the appropriate temperature setting for the furnace atmosphere largely depends on experience.
There is a drawback that sometimes cases of overcooking occur, or conversely cases of uneven baking.
本発明は、かかる従来の雰囲気制御による欠点
を解消し、要求される各種のヒートパターンを炉
内鋼材温度を実測することによつて、鋼材自身の
温度で燃焼制御し、きめこまかな抽出温度を得る
ことができ、さらに省エネ指向にみあうように効
率よく燃焼制御する方法を提供するものである。
本発明を以下に詳細に説明する。 The present invention solves the drawbacks of conventional atmosphere control, and by actually measuring the temperature of the steel material in the furnace for various required heat patterns, combustion control is performed using the temperature of the steel material itself, and a precise extraction temperature is obtained. The present invention provides a method for efficiently controlling combustion so as to meet the energy saving trend.
The present invention will be explained in detail below.
本発明は、炉内鋼材温度測定用として、第４図
ａに示すが如く公知であるところの鋼材１１を測
定する放射温度計１２と測定鋼材付近の雰囲気を
測定する放射温度計１３で組合わされた温度検出
部をもち、このような鋼材温度検出部を炉内に少
なくとも２箇所以上に設置して、一定ピツチ毎に
鋼材温度をサンプリングし実績圧延ピツチにあわ
せて２点間あるいはそれ以上の区間の鋼材昇熱度
Ｕ（以下昇熱度と称す）をパラメータにとつてあ
らかじめ設定された目標の昇熱度ＵSPとの差を求
め、次式に基づいてその各帯にある鋼材温度を
修正していく方式の燃焼制御方法である。 The present invention combines a known radiation thermometer 12 for measuring the steel material 11 and a radiation thermometer 13 for measuring the atmosphere near the steel material to be used for measuring the temperature of the steel material in the furnace, as shown in FIG. 4a. These steel material temperature detection parts are installed in at least two locations in the furnace, and the steel material temperature is sampled at a certain pitch, and the temperature is measured between two points or more in accordance with the actual rolling pitch. Using the steel heating degree U (hereinafter referred to as heating degree) as a parameter, find the difference between the preset target heating degree U SP and correct the steel temperature in each zone based on the following formula. This is a method of combustion control.
ＴSP TSP
Claims (1)
炉内に少なくとも２箇所以上設け、該温度検出部
は鋼材からの放射エネルギーを検出する放射温度
計と炉壁からの放射エネルギーを検出する放射温
度計とからなり、一定ピツチ毎に鋼材温度をサン
プリングし鋼材昇熱度をパラメータにとつて、あ
らかじめ設定された目標昇熱度との差から鋼材温
度を修正することを特徴とする連続式加熱炉の燃
焼制御方法。1 At least two temperature detection units are provided in the furnace to measure the temperature of the steel in the furnace, and the temperature detection units include a radiation thermometer that detects radiant energy from the steel and a radiation thermometer that detects radiant energy from the furnace wall. A continuous heating furnace comprising a thermometer, sampling the temperature of the steel material at regular pitches, taking the degree of heat rise of the steel material as a parameter, and correcting the temperature of the steel material based on the difference from a preset target degree of heat rise. Combustion control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23325882A JPS59118818A (en) | 1982-12-25 | 1982-12-25 | Method for controlling combustion in continuous heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23325882A JPS59118818A (en) | 1982-12-25 | 1982-12-25 | Method for controlling combustion in continuous heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59118818A JPS59118818A (en) | 1984-07-09 |
| JPS6239210B2 true JPS6239210B2 (en) | 1987-08-21 |
Family
ID=16952251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23325882A Granted JPS59118818A (en) | 1982-12-25 | 1982-12-25 | Method for controlling combustion in continuous heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59118818A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1471271A3 (en) | 2003-04-25 | 2005-11-30 | Koyo Seiko Co., Ltd. | Tapered roller bearing and final reduction gear |
-
1982
- 1982-12-25 JP JP23325882A patent/JPS59118818A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59118818A (en) | 1984-07-09 |
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