JPH0711389B2 - How to operate the sweep fire furnace - Google Patents
How to operate the sweep fire furnaceInfo
- Publication number
- JPH0711389B2 JPH0711389B2 JP15155689A JP15155689A JPH0711389B2 JP H0711389 B2 JPH0711389 B2 JP H0711389B2 JP 15155689 A JP15155689 A JP 15155689A JP 15155689 A JP15155689 A JP 15155689A JP H0711389 B2 JPH0711389 B2 JP H0711389B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- sweep
- operating
- strength
- fire
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/24—Automatically regulating the melting process
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Regulation And Control Of Combustion (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) 本発明はスイープファイヤ炉の運転方法の改良に関する
ものである。TECHNICAL FIELD The present invention relates to an improvement in a method for operating a sweep fire furnace.
(従来の技術) 炉の両側壁に対向させて設けたバーナのフレームの強さ
を、一方が強くなったときには他方が弱くなり、一方が
弱くなったときには他方が強くなるような相補的関係を
保ちながら周期的に変化させるようにした炉は、スイー
プファイヤ炉の名称で当業者間に知られている。(Prior Art) The strength of the burner frame provided opposite to the both side walls of the furnace has a complementary relationship such that when one becomes stronger, the other becomes weaker and when one becomes weaker, the other becomes stronger. Furnaces that are arranged to change cyclically while being maintained are known to those skilled in the art under the name Sweepfire furnace.
このような炉は第4図に示すように、炉(1)の両側壁の
バーナ(2)、(3)にブロア(4)から供給される燃焼空気及び
拡散空気である3次空気を、モータ(5)付きの弁(6)によ
って同時にスイープ制御しており、炉の運転中は終始こ
のようなスイープ動作が行われていた。ところがこのよ
うに終始スイープ動作を行わせているスイープファイヤ
炉は、炉内撹拌流が交番流れとなるため、炉内にファイ
バーを内張りした炉においてはファイバーが切断されて
飛散し易いこと、高温域では対流伝熱よりも輻射伝熱が
主要な位置を占めるため、高温域では火炎が炉内を移動
することが却って均熱化を妨げること、温度制御と拡散
空気量制御が一連となっているため、省エネルギを目的
とした拡散空気量の低域調整がむずかしいこと等の問題
があった。Such a furnace, as shown in FIG. 4, uses combustion air supplied from the blower (4) and tertiary air, which is diffusion air, to the burners (2) and (3) on both side walls of the furnace (1). The sweep control was simultaneously performed by the valve (6) with the motor (5), and such sweep operation was performed from beginning to end during the operation of the furnace. However, in a sweep fire furnace in which sweep operation is performed from beginning to end in this way, since the stirring flow inside the furnace becomes an alternating flow, the fibers are easily cut and scattered in the furnace where the fiber is lined in the furnace, Since radiative heat transfer occupies the main position rather than convective heat transfer, in the high temperature region the movement of the flame inside the furnace hinders soaking and rather temperature control and diffusion air amount control are a series. Therefore, there has been a problem that it is difficult to adjust the low range of the diffused air amount for the purpose of energy saving.
(発明が解決しようとする課題) 本発明は上記したような従来の問題点を解決して、高温
域における炉材の損傷を防止しファイバーの飛散をなく
するとともに、均熱化と省エネルギ化とを図ることがで
きるようにしたスイープファイヤ炉の運転方法を提供す
るために完成されたものである。(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems, prevents damage to the furnace material in a high temperature range, eliminates scattering of fibers, and makes uniform heating and energy saving. It has been completed to provide a method for operating a sweep fire furnace capable of achieving the following.
(課題を解決するための手段) 上記の課題を解決するためになされた第1の発明は、炉
の両側壁に対向させて設けたバーナのフレームの強さを
一方が強くなったとき他方が弱くなる関係を保ちながら
周期的に変化させるスイープファイヤ炉を運転するに当
り、各バーナに供給される燃料及び燃焼空気を一定に保
ちながら、拡散用の3次空気の強さのみを変化させるこ
とによりスイープ制御を行うことを特徴とするものであ
る。(Means for Solving the Problems) The first invention made to solve the above problems is to increase the strength of the frame of the burner provided so as to face both side walls of the furnace when the other becomes stronger. When operating a sweep fire furnace that changes periodically while maintaining a weakening relationship, only the intensity of the tertiary air for diffusion is changed while keeping the fuel and combustion air supplied to each burner constant. It is characterized in that the sweep control is performed by.
また第2の発明は、炉の両側壁に対向させて設けたバー
ナのフレームの強さを一方が強くなったとき他方が弱く
なる関係を保ちながら周期的に変化させるスイープファ
イヤ炉を運転するに当り、炉内温度が高温に達したとき
にバーナーフレームの強さを変化させるスイープ制御を
抑制あるいは停止することを特徴とするものである。A second invention is to operate a sweep fire furnace in which the strength of a burner frame provided opposite to both side walls of the furnace is periodically changed while maintaining the relationship that when one becomes stronger, the other becomes weaker. In this case, the sweep control for changing the strength of the burner flame is suppressed or stopped when the temperature in the furnace reaches a high temperature.
更に第3の発明は、炉の両側壁に対向させて設けたバー
ナのフレームの強さを一方が強くなったとき他方が弱く
なる関係を保ちながら周期的に変化させるスイープファ
イヤ炉を運転するに当り、炉内温度が低温のときは拡散
用の3次空気の強さを変化させてスイープ制御を行い、
炉内温度が高温になるにつれて3次空気を絞ってスイー
プ制御を抑制あるいは停止することを特徴とするもので
ある。A third aspect of the present invention is to operate a sweep fire furnace in which the strength of a burner frame provided opposite to both side walls of the furnace is periodically changed while maintaining the relationship that when one becomes stronger, the other becomes weaker. When the temperature inside the furnace is low, the intensity of the tertiary air for diffusion is changed to perform sweep control.
As the temperature inside the furnace becomes higher, the tertiary air is throttled to suppress or stop the sweep control.
(実施例) 以下に本発明を図示の実施例とともに更に詳細に説明す
る。(Example) Hereinafter, the present invention will be described in more detail with reference to the illustrated example.
第1図に示すシステムにおいては、各バーナ(2)、(3)へ
燃焼空気を供給する燃焼ライン(7)と、各バーナ(2)、(3)
へ拡散用の3次空気を供給する拡散ライン(8)とが別系
統でブロア(4)に接続されており、拡散ライン(8)のみに
スイープ制御用のモータ(5)と弁(6)とが接続されてい
る。そして各バーナ(2)、(3)に供給される燃料及び燃焼
空気は温度制御ライン(9)の制御下においてほぼ一定に
保たれるが、拡散用の3次空気のみがモータ(5)と弁(6)
とによってスイープ制御され、その強さを周期的に変化
させる。In the system shown in FIG. 1, a combustion line (7) for supplying combustion air to each burner (2), (3) and each burner (2), (3)
The diffusion line (8) that supplies the tertiary air for diffusion is connected to the blower (4) in a separate system, and only the diffusion line (8) has a motor (5) and valve (6) for sweep control. And are connected. The fuel and combustion air supplied to the burners (2) and (3) are kept substantially constant under the control of the temperature control line (9), but only the tertiary air for diffusion is supplied to the motor (5). Valve (6)
Sweep control is performed by and to change its strength periodically.
このように3次空気のみをスイープ制御すれば、炉内温
度を決定するバーナ(2)、(3)の発熱量とは独立して炉内
にスイープ動作を行わせることができるので、炉内温度
が高温に達したときに自由に3次空気を絞り、炉内の撹
拌気流を減少あるいは停止させることができる。If only the tertiary air is swept in this way, the sweep operation can be performed in the furnace independently of the calorific value of the burners (2) and (3) that determine the temperature in the furnace. When the temperature reaches a high temperature, the tertiary air can be freely throttled to reduce or stop the stirring air flow in the furnace.
次に第2図に示されるシステムにおいては、第1図のシ
ステムの簡略化が図られており、各バーナ(2)、(3)へ供
給される燃料は燃焼ライン(7)からの燃焼空気圧に応じ
て比例制御がなされる。そして3次空気のみがモータ
(5)と弁(6)とによってスイープ制御される。Next, in the system shown in FIG. 2, the system of FIG. 1 is simplified, and the fuel supplied to each burner (2), (3) is the combustion air pressure from the combustion line (7). Proportional control is performed according to. And only the tertiary air is the motor
Sweep control is performed by (5) and the valve (6).
この場合にも炉内が高温に達したときには自由に3次空
気を絞ってスイープ動作を抑制したり、停止したりする
ことができる。Also in this case, when the temperature in the furnace reaches a high temperature, the tertiary air can be freely throttled to suppress or stop the sweep operation.
次に第3図に示されるシステムは、第2の発明に対応す
るもので、第4図に示される従来のシステムをそのまま
利用して、運転方法のみを変えようとするものである。
この場合には3次空気のみをスイープ制御するのではな
く、燃焼用空気も3次空気とともにスイープ制御される
が、炉内が高温に達したときにスイープ制御用のモータ
(5)によりバルブ(6)の開閉動作範囲を変更又は一定開度
の位置で停止させてスイープ動作を抑制又は停止させて
しまう。Next, the system shown in FIG. 3 corresponds to the second aspect of the invention, and the conventional system shown in FIG. 4 is used as it is to change only the operation method.
In this case, not only the tertiary air is swept controlled, but also the combustion air is swept controlled together with the tertiary air. However, when the temperature in the furnace reaches a high temperature, the sweep control motor
By (5), the opening / closing operation range of the valve (6) is changed or stopped at a position of a certain opening degree to suppress or stop the sweep operation.
なお、第3図、第4図に示されたバルブ(6)から送られ
た空気を制御する3ケ所のバルブの内拡散空気を送るバ
ルブは、他の2系列のバルブと逆の動作を行なう。すな
わち、この2系列のバルブが開の方向で流量が増の方向
に働くのに対し、バルブが開く方向で流量が減の方向に
働くよう設定されている。In addition, the valve that sends the diffused air among the three valves that control the air sent from the valve (6) shown in FIGS. 3 and 4 performs the opposite operation to the other two series of valves. . That is, the two series of valves are set so that the flow rate works in the opening direction and the flow rate increases, while the flow rate works in the opening direction and the flow rate decreases.
(作用) このように第2及び第3の発明によれば、炉内が低温の
場合には従来どおりのスイープ動作を行わせて炉内に積
極的に交番流を形成し、対流による熱伝達の向上と均熱
化を図り、炉内が高温となった場合にはスイープ動作を
抑制したり停止させることができる。このため、高温域
における炉内撹拌流の方向を一定とすることができ、炉
内に内張りされたファイバーの切断や飛散を防止するこ
とができる。また第2及び第3の発明によれば、輻射伝
熱が主となる高温域においてバーナフレームの移動を停
止させることができ、炉内の均熱化を図ることができ
る。更に第1及び第3の発明によれば、高温域において
拡散用の3次空気量を自由に低減させることができるの
で、大きい省エネルギ化を図ることができる。(Operation) As described above, according to the second and third aspects of the invention, when the temperature in the furnace is low, the conventional sweep operation is performed to positively form an alternating flow in the furnace, and heat transfer by convection is performed. It is possible to suppress the sweep operation and stop it when the temperature inside the furnace becomes high. For this reason, the direction of the stirred flow in the furnace in the high temperature region can be made constant, and the cutting and scattering of the fiber lined in the furnace can be prevented. Further, according to the second and third aspects of the invention, the movement of the burner frame can be stopped in a high temperature region where radiant heat transfer is the main, and soaking in the furnace can be achieved. Further, according to the first and third aspects of the invention, the amount of the tertiary air for diffusion can be freely reduced in the high temperature region, so that large energy saving can be achieved.
なお、図面はいずれもシャトルキルンに関するものであ
るが、本発明はシャトルキルン以外にも適用できること
はいうまでもない。Although all of the drawings relate to the shuttle kiln, it goes without saying that the present invention can be applied to other than the shuttle kiln.
(発明の効果) 本発明は以上に説明したように、従来のスイープファイ
ヤ炉の運転方法を変えることによって、炉内壁の損傷防
止、均熱化、省エネルギ化を図ることに成功したもので
あるから、従来の問題点を解消したスイープファイヤ炉
の運転方法として、産業の発展に寄与するところは極め
て大きいものである。(Effect of the Invention) As described above, the present invention succeeds in preventing damage to the inner wall of the furnace, soaking the heat, and conserving energy by changing the operation method of the conventional sweep fire furnace. Therefore, as a method of operating a sweep fire furnace that solves the conventional problems, it greatly contributes to industrial development.
第1図、第2図、第3図はいずれも本発明の実施例を説
明する配管系統図、第4図は従来例を説明する配管系統
図である。 (1):炉、(2):バーナ、(3):バーナ、(4):ブロア、
(5):スイープ制御用のモータ、(6):スイープ制御用の
弁、(7):燃焼ライン、(8):拡散ライン。1, 2, and 3 are all piping system diagrams for explaining an embodiment of the present invention, and FIG. 4 is a piping system diagram for explaining a conventional example. (1): Furnace, (2): Burner, (3): Burner, (4): Blower,
(5): Motor for sweep control, (6): Valve for sweep control, (7): Combustion line, (8): Diffusion line.
Claims (3)
レームの強さを一方が強くなったとき他方が弱くなる関
係を保ちながら周期的に変化させるスイープファイヤ炉
を運転するに当り、各バーナに供給される燃料及び燃焼
空気を一定に保ちながら、拡散用の3次空気の強さのみ
を変化させることによりスイープ制御を行うことを特徴
とするスイープファイヤ炉の運転方法。1. When operating a sweep fire furnace in which the strength of a burner frame provided opposite to both side walls of the furnace is periodically changed while maintaining the relationship that when one becomes stronger, the other becomes weaker, A method for operating a sweep fire furnace, wherein sweep control is performed by changing only the intensity of tertiary air for diffusion while keeping the fuel and combustion air supplied to each burner constant.
レームの強さを一方が強くなったとき他方が弱くなる関
係を保ちながら周期的に変化させるスイープファイヤ炉
を運転するに当り、炉内温度が高温に達したときにバー
ナーフレームの強さを変化させるスイープ制御を抑制あ
るいは停止することを特徴とするスイープファイヤ炉の
運転方法。2. When operating a sweep fire furnace in which the strength of a burner frame provided opposite to both side walls of the furnace is periodically changed while maintaining the relationship that when one becomes stronger, the other becomes weaker, A method for operating a sweep fire furnace, which comprises suppressing or stopping the sweep control for changing the strength of the burner flame when the temperature in the furnace reaches a high temperature.
レームの強さを一方が強くなったとき他方が弱くなる関
係を保ちながら周期的に変化させるスイープファイヤ炉
を運転するに当り、炉内温度が低温のときは拡散用の3
次空気の強さを変化させてスイープ制御を行い、炉内温
度が高温になるにつれて3次空気を絞ってスイープ制御
を抑制あるいは停止することを特徴とするスイープファ
イヤ炉の運転方法。3. When operating a sweep fire furnace in which the strength of a burner frame provided opposite to both side walls of the furnace is periodically changed while maintaining the relationship that when one becomes stronger, the other becomes weaker, 3 for diffusion when the temperature inside the furnace is low
A method for operating a sweep fire furnace, characterized in that the strength of secondary air is changed to perform sweep control, and the tertiary air is throttled to suppress or stop the sweep control as the temperature inside the furnace rises.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15155689A JPH0711389B2 (en) | 1989-06-14 | 1989-06-14 | How to operate the sweep fire furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15155689A JPH0711389B2 (en) | 1989-06-14 | 1989-06-14 | How to operate the sweep fire furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0316922A JPH0316922A (en) | 1991-01-24 |
JPH0711389B2 true JPH0711389B2 (en) | 1995-02-08 |
Family
ID=15521106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15155689A Expired - Lifetime JPH0711389B2 (en) | 1989-06-14 | 1989-06-14 | How to operate the sweep fire furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0711389B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112266150A (en) * | 2020-10-22 | 2021-01-26 | 凯盛科技集团有限公司 | Energy-saving control system and method for glass manufacturing process |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8282614B2 (en) * | 2006-11-20 | 2012-10-09 | The Procter And Gamble Company | Method and apparatus for producing stabilized absorbent structure |
-
1989
- 1989-06-14 JP JP15155689A patent/JPH0711389B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112266150A (en) * | 2020-10-22 | 2021-01-26 | 凯盛科技集团有限公司 | Energy-saving control system and method for glass manufacturing process |
CN112266150B (en) * | 2020-10-22 | 2021-11-09 | 凯盛科技集团有限公司 | Energy-saving control system and method for glass manufacturing process |
Also Published As
Publication number | Publication date |
---|---|
JPH0316922A (en) | 1991-01-24 |
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