JPH0953117A - Method for controlling combustion of heating furnace - Google Patents
Method for controlling combustion of heating furnaceInfo
- Publication number
- JPH0953117A JPH0953117A JP7208759A JP20875995A JPH0953117A JP H0953117 A JPH0953117 A JP H0953117A JP 7208759 A JP7208759 A JP 7208759A JP 20875995 A JP20875995 A JP 20875995A JP H0953117 A JPH0953117 A JP H0953117A
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- combustion
- type burner
- storage type
- exhaust gas
- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Air Supply (AREA)
- Control Of Heat Treatment Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明方法は、加熱炉の燃焼
制御方法に関するものである。TECHNICAL FIELD The present invention relates to a combustion control method for a heating furnace.
【０００２】[0002]
【従来の技術】鋳造後のスラブ（鋼片）、ビレット、ブ
ルーム等は加熱炉へ装入し、熱間圧延に好適な温度に加
熱するものであるが、このような加熱炉においては、一
般に予熱帯、加熱帯及び均熱帯から構成され、鋼片等の
被加熱材は順次予熱帯、加熱帯及び均熱帯を連続的に移
動させて加熱するものである。しかして加熱炉の熱効率
を向上するため、予熱帯に蓄熱式バーナーを配設し、加
熱帯及び均熱帯には、蓄熱機構を付設しない通常バーナ
ーを配設して燃焼制御する方法が特開平６−３２２４３
４号公報に開示されている。2. Description of the Related Art Slabs (steel slabs), billets, blooms, etc. after casting are put into a heating furnace and heated to a temperature suitable for hot rolling. It is composed of a pre-tropical zone, a heating zone and a soaking zone, and a material to be heated such as a steel strip is heated by successively moving the pre-zone, the heating zone and the soaking zone. Therefore, in order to improve the thermal efficiency of the heating furnace, a heat storage type burner is provided in the pre-tropical zone, and a normal burner without a heat storage mechanism is provided in the heating zone and the soaking zone to control combustion. -32243
No. 4 discloses this.
【０００３】上記のごとき加熱炉の燃焼制御において
は、予熱帯に配設した蓄熱側蓄熱式バーナーの蓄熱時、
つまり加熱炉内の排ガス吸引によりバーナーの蓄熱体に
排ガス顕熱を蓄熱しているときには、図３に示すごとく
燃焼側蓄熱式バーナーの燃焼負荷（燃焼量）が減少する
と燃焼用空気供給量を減少せしめ、排ガス量も減少す
る、燃焼負荷が増大すると比例して燃焼用空気供給量を
増加することから排ガス量も増加する。一方燃焼空気比
は、一定に保持しつつ燃焼制御するものである。この燃
焼空気比は、ほぼ１．１に設定して燃焼し、排ガスから
蓄熱体への熱移動量と、燃焼用空気への熱移動量をバラ
ンスさせるための制御であり、燃焼によって生成した排
ガス量の８０〜９０％を蓄熱式バーナーの蓄熱体を通し
て吸引排気することにより、熱収支をとりつつ燃焼制御
するものである。In the combustion control of the heating furnace as described above, at the time of heat storage of the heat storage side heat storage type burner arranged in the pretropical zone,
That is, when the sensible heat of exhaust gas is stored in the regenerator of the burner by sucking the exhaust gas in the heating furnace, the combustion air supply amount decreases when the combustion load (combustion amount) of the combustion side regenerative burner decreases as shown in FIG. At the same time, the amount of exhaust gas also decreases. When the combustion load increases, the amount of combustion air supply increases proportionally, so the amount of exhaust gas also increases. On the other hand, the combustion air ratio is controlled while maintaining a constant value. This combustion air ratio is set to about 1.1 for combustion, and is control for balancing the amount of heat transfer from the exhaust gas to the heat storage body and the amount of heat transfer to the combustion air. 80 to 90% of the amount is sucked and exhausted through a heat storage body of a heat storage type burner to control combustion while taking a heat balance.
【０００４】このような加熱炉においては、鋼片加熱の
場合で予熱帯約１０００℃、加熱帯約１２５０℃、均熱
帯約１２５０℃の炉内温度に制御し、高温の加熱帯及び
均熱帯の排ガスは予熱帯排ガスとともに煙道へ排気さ
れ、煙道に設置してある熱交換器へ接触通過して加熱帯
及び均熱帯に付設した通常バーナーへ供給する燃焼用空
気を予熱した後、煙突から大気中へ放散する。In such a heating furnace, in the case of billet heating, the temperature inside the furnace is controlled to about 1000 ° C. preheating, about 1250 ° C. heating zone, and about 1250 ° C. soaking zone, and the heating zone at high temperature and soaking zone are controlled. The exhaust gas is exhausted to the flue together with the pre-tropical exhaust gas, and passes through the heat exchanger installed in the flue to preheat the combustion air supplied to the heating zone and the normal burner attached to the soaking zone, and then from the chimney. Disperse into the atmosphere.
【０００５】[0005]
【発明が解決しようとする課題】上記のごとき燃焼制御
においては、前記のように蓄熱式バーナーの燃焼負荷
（燃焼量）が減少すると燃焼用空気供給量を減少し、排
ガス量も減少する。また燃焼負荷が増大すると比例して
燃焼用空気供給量を増加し、排ガス量も増加する。一方
燃焼空気比は、ほぼ１．１と一定に保持つつ燃焼制御す
ることから燃焼負荷が減少するときは、燃焼側蓄熱式バ
ーナーへの燃料供給を減少するとともに、燃焼用空気の
供給量も減少させるので燃焼にともなう排ガス量も少な
くなることから、蓄熱側蓄熱式バーナーからの炉内排ガ
ス吸引量も減少させることになる。このようなことから
予熱帯の蓄熱式バーナーの蓄熱量は減少することなり、
加熱帯及び均熱帯の高温排ガスの顕熱が未回収の状態で
煙道へ排気しているのが実情である等の課題がある。本
発明方法は、このような課題を有利に解決するためなさ
れたものであり、排ガス吸引量及び燃焼用空気供給量を
常時蓄熱式バーナー容量の最大値近傍とし、燃焼負荷が
減少したとき、燃焼空気比を増量して加熱帯及び均熱帯
から高温排ガスとともに、蓄熱式バーナーに吸引して蓄
熱し熱効率等を向上するものである。In the above-described combustion control, when the combustion load (combustion amount) of the regenerative burner decreases as described above, the combustion air supply amount decreases and the exhaust gas amount also decreases. Further, as the combustion load increases, the combustion air supply amount increases proportionally and the exhaust gas amount also increases. On the other hand, the combustion air ratio is kept constant at approximately 1.1, and combustion control is performed, so when the combustion load decreases, the fuel supply to the combustion side regenerative burner is reduced and the combustion air supply amount is also reduced. Since the amount of exhaust gas accompanying combustion is reduced, the amount of exhaust gas sucked in the furnace from the heat storage side regenerative burner is also reduced. As a result, the heat storage amount of the pre-tropical heat storage type burner will decrease,
There are problems such as the fact that the sensible heat of the high-temperature exhaust gas in the heating zone and the soaking zone is exhausted to the flue without being collected. The method of the present invention has been made in order to advantageously solve such a problem, the exhaust gas suction amount and the combustion air supply amount is always near the maximum value of the heat storage type burner capacity, when the combustion load is reduced, combustion The amount of air is increased to suck hot heat from the heating zone and the soaking zone together with high-temperature exhaust gas into a heat storage type burner to store heat, thereby improving thermal efficiency and the like.
【０００６】[0006]
【課題を解決するための手段】本発明方法の特徴とする
ところは、予熱帯に蓄熱式バーナーを配設し、加熱帯及
び均熱帯に通常バーナーを配設して燃焼制御するに際
し、予熱帯の燃焼側蓄熱式バーナーへの燃焼用空気供給
量と蓄熱側蓄熱式バーナーの排ガス吸引量を蓄熱式バー
ナー容量の最大値近傍に設定し、燃焼側蓄熱式バーナー
の燃焼負荷が減少したとき、燃焼空気比を増加すること
を特徴とする加熱炉の燃焼制御方法である。The method of the present invention is characterized in that a heat storage type burner is provided in the pretropical zone and a normal burner is provided in the heating zone and the soaking zone to control combustion. When the combustion air supply amount to the combustion side heat storage type burner and the exhaust gas suction amount of the heat storage side heat storage type burner are set near the maximum value of the heat storage type burner capacity, when the combustion load of the combustion side heat storage type burner decreases A combustion control method for a heating furnace, which is characterized by increasing an air ratio.
【０００７】[0007]
【発明の実施の形態】予熱帯の燃焼側蓄熱式バーナーへ
供給する燃焼用空気供給量を図２に示すごとく、常時蓄
熱式バーナー容量の最大値近傍とし、燃焼負荷が減少し
たときは燃焼空気比を増加し、逆に燃焼負荷を増大した
ときは、燃焼空気比を減少して燃焼用空気量を常時ほぼ
一定とする。一方蓄熱側蓄熱式バーナーの蓄熱体へ蓄熱
するための排ガス吸引量も蓄熱体の最大容量（蓄熱式バ
ーナーの最大容量）を吸引して蓄熱する。このように燃
焼負荷が減少したとき、燃焼空気比を増加して燃焼用空
気量を増加することによって、燃焼側蓄熱式バーナーの
燃焼負荷が減少したときも燃焼負荷の増大（バーナー容
量の最大値近傍）時とほぼ同一にする。従って燃焼負荷
が減少したときは、燃焼空気比の増加によって増量し
た、排ガスに加熱帯及び均熱帯からの流入した高温排ガ
スと混合して蓄熱側蓄熱式バーナーへ吸引し、高効率で
蓄熱するものである。BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 2, the amount of combustion air supplied to the heat storage type burner on the combustion side in the pretropical zone is set to be near the maximum value of the heat storage type burner at all times, and the combustion air is reduced when the combustion load decreases. When the ratio is increased and the combustion load is increased on the contrary, the combustion air ratio is decreased so that the combustion air amount is almost constant at all times. On the other hand, the exhaust gas suction amount for storing heat to the heat storage body of the heat storage side heat storage type burner also sucks the maximum capacity of the heat storage body (maximum capacity of the heat storage type burner) to store heat. In this way, when the combustion load decreases, the combustion air ratio is increased to increase the combustion air amount, so that the combustion load increases even when the combustion load of the combustion side regenerative burner decreases (the maximum burner capacity value). Near) same as when. Therefore, when the combustion load decreases, it is mixed with the exhaust gas that has increased due to the increase in the combustion air ratio, and the hot exhaust gas that has flowed from the heating zone and the soaking zone is sucked into the heat storage side regenerative burner to store heat with high efficiency. Is.
【０００８】このような蓄熱式バーナーの燃焼負荷の変
更量と、燃焼空気比の増減量の関係は加熱炉の容量等に
基づき、常時燃焼用空気量と排ガス吸引量が蓄熱式バー
ナー燃焼容量の最大値近傍になるごとく制御するもので
ある。The relationship between the change amount of the combustion load of such a regenerative burner and the increase / decrease amount of the combustion air ratio is based on the capacity of the heating furnace or the like, and the constant combustion air amount and the exhaust gas suction amount are the regenerative burner combustion capacity. It is controlled so that it becomes close to the maximum value.
【０００９】次に本発明方法の一例を図面により説明す
る。図１において、蓄熱体１を付設した蓄熱式バーナー
２を一側Ａと他側Ｂに対称に配設した予熱帯３、通常バ
ーナー４を一側Ａと他側Ｂに対称にそれぞれ配設した加
熱帯５及び均熱帯６からなる加熱帯７において、予熱炉
帯一側Ａの蓄熱式バーナー２の蓄熱体１へ送風機８から
燃焼用空気を供給し、蓄熱体１で予熱して蓄熱式バーナ
ー２へ供給する。この蓄熱式バーナー２へ燃料（コーク
ス炉発生ガス等）を別系統（図示せず）から供給して燃
焼加熱し、その排ガスを他側Ｂの蓄熱式バーナー２が吸
引して排ガス顕熱を蓄熱体１に蓄熱し、蓄熱後の排ガス
を煙道１４の熱交換器９の排ガス出側に排気する。この
ような一側Ａの蓄熱式バーナー２と他側Ｂの蓄熱式バー
ナー２の燃焼、蓄熱を交互に繰り返して蓄熱型交番燃焼
加熱により予熱帯３を加熱する。この予熱帯３に続き、
一側Ａと他側Ｂに対称に配設した加熱帯５及び均熱帯６
の通常バーナー４へ送風器８から熱交換器９を介して、
予熱した燃焼用空気を供給し、同時に燃料を（コークス
炉発生ガス等）を別系統（図示せず）から供給して燃焼
加熱する。被加熱材１１は、加熱帯７入側１０から予熱
帯３装入し、予熱後の被加熱材１１を加熱帯５及び均熱
帯６へ順次移動して加熱、均熱後、加熱炉７の出側１２
から抽出する。加熱帯５及び均熱帯６の排ガスは、予熱
帯３へ流れ煙道１４へ排気されて熱交換器９で加熱帯５
及び均熱帯６の燃焼用空気を予熱後、煙突１３から放散
する。Next, an example of the method of the present invention will be described with reference to the drawings. In FIG. 1, a heat storage type burner 2 provided with a heat storage body 1 is symmetrically arranged on one side A and the other side B, and a preheat zone 3 and a normal burner 4 are symmetrically arranged on the one side A and the other side B, respectively. In the heating zone 5 including the heating zone 5 and the soaking zone 6, combustion air is supplied from the blower 8 to the heat storage body 1 of the heat storage type burner 2 on the one side A of the preheating furnace zone and preheated by the heat storage body 1 to perform the heat storage type burner. Supply to 2. Fuel (gas generated in a coke oven, etc.) is supplied from another system (not shown) to the heat storage type burner 2 for combustion and heating, and the exhaust gas is sucked by the heat storage type burner 2 on the other side B to store sensible heat of exhaust gas. Heat is stored in the body 1, and the exhaust gas after the heat storage is exhausted to the exhaust gas outlet side of the heat exchanger 9 of the flue 14. Combustion and heat storage of the heat storage type burner 2 on the one side A and the heat storage type burner 2 on the other side B are alternately repeated to heat the pretropical zone 3 by heat storage type alternating combustion heating. Following this pre-tropics 3,
Heating zone 5 and soaking zone 6 symmetrically arranged on one side A and the other side B
To the normal burner 4 from the blower 8 through the heat exchanger 9,
Preheated combustion air is supplied, and at the same time, fuel (gas generated in the coke oven, etc.) is supplied from another system (not shown) for combustion heating. The material 11 to be heated is charged into the preheating zone 3 from the inlet side 10 of the heating zone 7 and the preheated material 11 is sequentially moved to the heating zone 5 and the soaking zone 6 for heating and soaking, after which the heating furnace 7 is heated. Delivery side 12
Extract from Exhaust gas from the heating zone 5 and the soaking zone 6 flows to the preheating zone 3 and is discharged to the flue 14 and is heated by the heat exchanger 9 to the heating zone 5
And the combustion air in the soaking zone 6 is preheated and then diffused from the chimney 13.
【００１０】このような加熱炉７の被加熱材１１の加熱
に際し、前記のごとく、予熱帯３の燃焼側蓄熱式バーナ
ー２の燃焼用空気供給量と、蓄熱側蓄熱式バーナー２の
排ガス吸引量を蓄熱式バーナー２容量の最大値近傍に設
定し、蓄熱式バーナー２の燃焼負荷が減少したとき燃焼
空気比を増量し、常時蓄熱式バーナー２容量の最大値近
傍の燃焼用空気量と排ガス吸引量を確保して、予熱帯３
へ流入する加熱帯５及び均熱帯６の高温排ガスの一部と
ともに蓄熱側蓄熱式バーナー２へ吸引することによっ
て、蓄熱量を増加することができ熱効率を向上するもの
である。When heating the material 11 to be heated in the heating furnace 7 as described above, as described above, the combustion air supply amount of the combustion side heat storage type burner 2 in the preheat zone 3 and the exhaust gas suction amount of the heat storage side heat storage type burner 2 are used. Is set near the maximum value of the heat storage type burner 2 capacity, the combustion air ratio is increased when the combustion load of the heat storage type burner 2 decreases, and the combustion air amount and exhaust gas suction near the maximum value of the heat storage type burner 2 capacity are always set. Securing quantity, pre-tropics 3
The amount of heat storage can be increased and the thermal efficiency can be improved by sucking into the heat storage side heat storage type burner 2 together with a part of the high temperature exhaust gas of the heating zone 5 and the soaking zone 6 flowing in.
【００１１】[0011]
【実施例】次に、本発明方法の実施例を比較例とともに
挙げる。 実施例 １）予熱帯 （１）燃焼用空気供給量：１７０Nm3/分（設計最大供給
量１８０Nm3/分、設計最小供給量３５Nm3/分）、燃料供
給量２３Nm3/分（コークス炉発生ガス）。 （２）排ガス吸引量：１４８Nm3/分（設計最大供給量１
７０Nm3/分、設計最小供給量３４Nm3/分）、燃料供給量
２３Nm3/分（コークス炉発生ガス）。 （３）燃焼空気比：１．６０ （４）交番燃焼時間：４０秒間隔、予熱帯温度１１００
℃。 ２）加熱帯 （１）燃焼用空気供給量：３０６Nm3/分、燃料供給量６
４Nm3/分（コークス炉発生ガス）、加熱帯温度１３００
℃。 ３）均熱帯 （１）燃焼用空気供給量：１７０Nm3/分、燃料供給量３
５Nm3/分（コークス炉発生ガス）、加熱帯温度１２５０
℃。 このような加熱炉の操業において、予熱帯の蓄熱式バー
ナーの燃焼負荷を９５％（最大値近傍）〜６０％間で調
整しながら燃焼加熱し、燃焼負荷９５％のとき燃焼空気
比：１．０５、燃焼負荷６０％のとき燃焼空気比：１．
６０で、燃焼負荷９５％から６０％間の燃焼負荷に比例
して燃焼空気比を増減して３０日間連続燃焼制御しつ
つ、加熱操業した。EXAMPLES Next, examples of the method of the present invention will be given together with comparative examples. Example 1) Pre-Tropical Zone (1) Combustion air supply rate: 170 Nm 3 / min (design maximum supply 180 Nm 3 / min, design minimum supply 35 Nm 3 / min), fuel supply 23 Nm 3 / min (coke oven generation gas). (2) Exhaust gas suction rate: 148 Nm 3 / min (design maximum supply rate 1
70 Nm 3 / min, design minimum supply 34 Nm 3 / min), fuel supply 23 Nm 3 / min (coke oven gas). (3) Combustion air ratio: 1.60 (4) Alternate combustion time: 40 seconds interval, pre-tropical temperature 1100
° C. 2) Heating zone (1) Combustion air supply rate: 306 Nm 3 / min, fuel supply rate 6
4 Nm 3 / min (coke oven gas), heating zone temperature 1300
° C. 3) Soaking (1) Combustion air supply: 170 Nm 3 / min, fuel supply: 3
5Nm 3 / min (gas generated by coke oven), heating zone temperature 1250
° C. In the operation of such a heating furnace, combustion heating is performed while adjusting the combustion load of the pre-tropical heat storage type burner between 95% (near the maximum value) and 60%, and when the combustion load is 95%, the combustion air ratio is 1. When the combustion load is 60%, the combustion air ratio is 1.
At 60, heating operation was performed while continuously controlling combustion for 30 days by increasing or decreasing the combustion air ratio in proportion to the combustion load between 95% and 60%.
【００１２】[0012]
【比較例】上記条件で操業するに際し、予熱帯の燃焼負
荷９５％のとき燃焼用空気供給量１７０Nm3/分、排ガス
吸引量：１６２Nm3/分、燃焼負荷６０％のとき燃焼用空
気供給量１１０Nm3/分、排ガス吸引量：１００Nm3/分と
し、燃焼負荷９５％〜６０％間の燃焼負荷に比例して、
燃焼用空気供給量と排ガス吸引量を増減し、燃焼用空気
比１．０５と常時一定にして３０日間連続燃焼制御しつ
つ、加熱操業した。このようにして操業したところ、実
施例は比較例に比べ５％の低燃料原単位で加熱すること
ができた。Upon operating in Comparative Example above conditions, the combustion air supply amount when the combustion load of 95% of the preheating zone 170 nm 3 / min, the exhaust gas suction amount: 162 nm 3 / min, the combustion air supply amount when the combustion load of 60% 110 nm 3 / min, the exhaust gas suction amount: to 100 Nm 3 / min, in proportion to the combustion load between combustion load 95% to 60%,
A heating operation was performed while continuously controlling combustion for 30 days while increasing or decreasing the supply amount of combustion air and the suction amount of exhaust gas and keeping the combustion air ratio constant at 1.05. When operated in this manner, the example could be heated at a low fuel consumption rate of 5% compared to the comparative example.
【００１３】[0013]
【発明の効果】本発明方法によれば、加熱炉の熱効率を
向上することができ、また蓄熱式バーナーの燃焼負荷の
減少時においても、蓄熱式バーナーには十分な蓄熱量が
あり、燃焼負荷の減少から増量へ移行するとき即応で
き、生産性を高めることができる等の優れた効果が得ら
れる。According to the method of the present invention, the thermal efficiency of the heating furnace can be improved, and even when the combustion load of the regenerative burner is reduced, the regenerative burner has a sufficient amount of heat storage, It is possible to quickly respond to the shift from the decrease to the increase in the amount, and it is possible to obtain an excellent effect that the productivity can be improved.
【図１】本発明方法の一例を示す側面図である。FIG. 1 is a side view showing an example of the method of the present invention.
【図２】本発明方法の蓄熱式バーナーの燃焼負荷と燃焼
用空気供給量、排ガス吸引量、燃焼用空気比との関係を
示す図表である。FIG. 2 is a table showing a relationship between a combustion load of a heat storage burner of the method of the present invention, a supply amount of combustion air, an exhaust gas suction amount, and a combustion air ratio.
【図３】従来の蓄熱式バーナーの燃焼負荷と燃焼用空気
供給量、排ガス吸引量、燃焼用空気比との関係を示す図
表である。FIG. 3 is a table showing a relationship between a combustion load of a conventional regenerative burner, a supply amount of combustion air, an exhaust gas suction amount, and a combustion air ratio.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ２７Ｄ 17/00 Ｆ２７Ｄ 17/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location F27D 17/00 F27D 17/00
Claims (1)
帯及び均熱帯に通常バーナーを配設して燃焼制御するに
際し、予熱帯の燃焼側蓄熱式バーナーへの燃焼用空気供
給量と蓄熱側蓄熱式バーナーの排ガス吸引量を蓄熱式バ
ーナー容量の最大値近傍に設定し、燃焼側蓄熱式バーナ
ーの燃焼負荷が減少したとき、燃焼空気比を増加するこ
とを特徴とする加熱炉の燃焼制御方法。1. When a heat storage type burner is provided in the pre-tropical zone and a normal burner is provided in the heating zone and the soaking zone to control combustion, the amount of combustion air supplied to the combustion side heat storage type burner in the pre-tropical zone and Combustion of a heating furnace characterized by setting the exhaust gas suction amount of the heat storage side heat storage burner near the maximum value of the heat storage type burner capacity and increasing the combustion air ratio when the combustion load of the combustion side heat storage type burner decreases. Control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20875995A JP3328471B2 (en) | 1995-08-16 | 1995-08-16 | Heating furnace combustion control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20875995A JP3328471B2 (en) | 1995-08-16 | 1995-08-16 | Heating furnace combustion control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0953117A true JPH0953117A (en) | 1997-02-25 |
| JP3328471B2 JP3328471B2 (en) | 2002-09-24 |
Family
ID=16561620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20875995A Expired - Fee Related JP3328471B2 (en) | 1995-08-16 | 1995-08-16 | Heating furnace combustion control method |
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| Country | Link |
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| JP (1) | JP3328471B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100446683B1 (en) * | 2001-12-21 | 2004-09-01 | 주식회사 포스코 | Control Method of Air-Fuel Ratio with Change of Calorific Value of Mixed Gas in a Reheating Furnace |
| EP2199673A3 (en) * | 2008-12-16 | 2011-03-23 | Chugai Ro Co., Ltd. | Combustion control method for regenerative-combustion heat treat furnace |
| JP2011168863A (en) * | 2010-02-22 | 2011-09-01 | Jfe Steel Corp | Method for heating metallic material |
| KR101122658B1 (en) * | 2011-11-08 | 2012-03-09 | 오에스지(주) | Apparatus for preheating |
| JP2013088101A (en) * | 2011-10-21 | 2013-05-13 | Nippon Steel & Sumitomo Metal Corp | Method of cooling air preheater in heating furnace |
-
1995
- 1995-08-16 JP JP20875995A patent/JP3328471B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100446683B1 (en) * | 2001-12-21 | 2004-09-01 | 주식회사 포스코 | Control Method of Air-Fuel Ratio with Change of Calorific Value of Mixed Gas in a Reheating Furnace |
| EP2199673A3 (en) * | 2008-12-16 | 2011-03-23 | Chugai Ro Co., Ltd. | Combustion control method for regenerative-combustion heat treat furnace |
| JP2011168863A (en) * | 2010-02-22 | 2011-09-01 | Jfe Steel Corp | Method for heating metallic material |
| JP2013088101A (en) * | 2011-10-21 | 2013-05-13 | Nippon Steel & Sumitomo Metal Corp | Method of cooling air preheater in heating furnace |
| KR101122658B1 (en) * | 2011-11-08 | 2012-03-09 | 오에스지(주) | Apparatus for preheating |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3328471B2 (en) | 2002-09-24 |
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