JPH0234543A - Method for controlling production of quick line - Google Patents
Method for controlling production of quick lineInfo
- Publication number
- JPH0234543A JPH0234543A JP18442888A JP18442888A JPH0234543A JP H0234543 A JPH0234543 A JP H0234543A JP 18442888 A JP18442888 A JP 18442888A JP 18442888 A JP18442888 A JP 18442888A JP H0234543 A JPH0234543 A JP H0234543A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- kiln
- quicklime
- limestone
- measured
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000007789 gas Substances 0.000 claims abstract description 52
- 239000000292 calcium oxide Substances 0.000 claims abstract description 27
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 27
- 235000019738 Limestone Nutrition 0.000 claims abstract description 23
- 239000000446 fuel Substances 0.000 claims abstract description 23
- 239000006028 limestone Substances 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000010304 firing Methods 0.000 claims description 24
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 21
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 10
- 239000001569 carbon dioxide Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 238000000195 production control method Methods 0.000 claims 3
- 238000001354 calcination Methods 0.000 abstract description 9
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 10
- 238000000354 decomposition reaction Methods 0.000 description 8
- 238000005496 tempering Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔窯業上の利用分野〕
この発明は、生石灰の焼成方法に関するもので焼斑のな
い均一な品質の生石灰を得ることができる焼成方法を提
供せんとするものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application in Ceramics] The present invention relates to a method for firing quicklime, and aims to provide a method for producing quicklime of uniform quality without burning spots.
従来、石灰石の焼成窯としては回転窯、竪窯等多極の窯
が使用されている。そして、均等な品質（残留 ＣＯ，
％、ＣａＯ％、Ｉｇｌｏｓｓ ％活性度、有効石灰等が
均等なもの）を得るために、石灰石の粒度幅を小さくす
るものとか５１Ｇ−以下の細粒を除去すること等が行な
われ、また、原石の洗浄を充分行って土砂の混入を防ぐ
とか、また、窯内における石灰石の空隙を均一にして焼
成ガスが均等に流れるようにする。ことが行なわれ、石
灰石と燃料、燃料と燃焼用空気、生石灰と冷却用空気等
を調節管理して焼斑のない生石灰を得るようにしている
。Conventionally, multi-pole kilns such as rotary kilns and vertical kilns have been used as kilns for firing limestone. and uniform quality (residual CO,
%, CaO%, Igloss % activity, effective lime, etc.), steps are taken to reduce the particle size range of limestone or remove fine particles of 51G- or less. In addition, the limestone should be thoroughly cleaned to prevent dirt from getting mixed in, and the voids in the limestone in the kiln should be made uniform to allow the firing gas to flow evenly. Limestone and fuel, fuel and combustion air, quicklime and cooling air, etc. are controlled and controlled to obtain quicklime without burning spots.
然しなから、上述のような従来の焼成方法では、適正な
生石灰の焼成が数日続いた後に窯出したところ硬焼な生
石灰が製造され、次いで、軟焼な生石灰が製造されると
いった変動の大きな製造状態となることがある。この変
動は、例えば焼成帯における石灰石の分解に必要な熱量
の不足や過多等に起因するが、従来の方法ではこれらを
管理しているにしても常時管理しているものではないの
で、上述のような焼戻が発見されるのは、長時間経過し
たのちの窯出後であり、品質を低下させるのみか不良品
を発生させている。However, in the conventional firing method as described above, after several days of proper firing of quicklime, when it is taken out of the kiln, hard-burned quicklime is produced, and then soft-burned quicklime is produced. May result in large production conditions. This fluctuation is caused by, for example, insufficient or excessive heat required for the decomposition of limestone in the firing zone, but even if these are managed using conventional methods, they are not always managed, so the above-mentioned Such tempering is discovered after a long period of time has elapsed after the kiln has been taken out of the kiln, and it not only reduces quality but also causes defective products.
すなわち、生石灰中の例えば残留ＣＯ１％ の度合は窯
出し後８〜１０時間後に分析しなければ判らず、結果と
して判ったときには取返しがつかず大きな損失となって
いる。That is, the degree of residual CO in the quicklime, for example, 1%, cannot be determined until it is analyzed 8 to 10 hours after it is taken out of the kiln, and when it is determined, it is a huge loss that cannot be recovered.
そこで、この発明は、上述のような焼戻の原因となる残
留ｃｏ８％ 等の度合いを焼成中に捉える手段を探求し
た結果次のような知見を得た。Therefore, in the present invention, the following knowledge was obtained as a result of searching for a means to detect the degree of residual CO 8%, etc., which causes the above-mentioned tempering, during firing.
すなわち、 （１）炉中の石灰石の量。That is, (1) Amount of limestone in the furnace.
（２）石灰石の焼成に必要な燃料（重油とかコクス等で
その発熱量成分→→元素とし
て０％、Ｈ％、８％、等）。(2) Fuel necessary for calcining limestone (heavy oil, cox, etc., whose calorific value components → → elements are 0%, H%, 8%, etc.).
（３）燃料の燃焼に必要な空気の量および生石灰を冷却
させる冷却空気の量。(3) The amount of air required to burn the fuel and the amount of cooling air to cool the quicklime.
（４）生石灰の装填量。(4) Loading amount of quicklime.
これらが把握管理されておれば、燃料が完全に燃焼した
ことによる生ずる炭酸ガス量等が計算することができる
ことである。この計算を運転中の炉の排ガスから測定さ
れた数値に基づいて迅速に行い、その計算値に基づいて
炉に供給している燃料の量、空気量等を加減してやれば
、一定の条件下で石灰石を焼成することができ、焼戻の
ない生石灰を得ることができる。尚、燃料（重油０「コ
ークス）中には、炭素の他に水素、硫黄等が含まれ、こ
れらは、Ｈρ Ｓ０２ となって排ガス中に存在するが
、これらは微量であって焼成には殆ど影響のないもので
ある。If these are understood and managed, it is possible to calculate the amount of carbon dioxide gas generated when the fuel is completely combusted. If this calculation is quickly performed based on the values measured from the exhaust gas of the furnace in operation, and the amount of fuel, air, etc. supplied to the furnace is adjusted based on the calculated values, it is possible to Limestone can be calcined and quicklime without tempering can be obtained. In addition, the fuel (heavy oil 0 "coke") contains hydrogen, sulfur, etc. in addition to carbon, and these are present in the exhaust gas as Hρ S02, but these are in trace amounts and are hardly used in calcination. It has no impact.
尚、上述の排ガスの成分測定に当たって、その排ガスの
測定の仕方としては、所定の単位時間、例えば、６０分
、３０分、２０分、１０分、５分、１分等の如く、その
時間内の排ガス量、その排ガス中の炭酸ガスの量、酸素
量またはこれら排ガス中の酸素量またはこれら排ガス中
の百分率を求めて燃料制御装置や送風装置にフィードバ
ックしてやればよいものである。また上述単位時間の選
定に当たっては、回転窯、竪型窓（第２図、第３図参照
）の如く排ガスの成分に変動の殆ど認められないもので
は、短時間での測定でよく、メルツ窯（第１図参照）の
如く、複数の窯で構成されていて周期的に燃焼ガスの流
れが変化する窯では少なくともこの周期の時間内でガス
流が安定した時間または時刻を選んで測定することが必
要である。In measuring the components of the exhaust gas mentioned above, the method of measuring the exhaust gas is within a predetermined unit time, such as 60 minutes, 30 minutes, 20 minutes, 10 minutes, 5 minutes, 1 minute, etc. The amount of exhaust gas, the amount of carbon dioxide in the exhaust gas, the amount of oxygen, the amount of oxygen in these exhaust gases, or the percentage of these exhaust gases may be determined and fed back to the fuel control device or blower device. In addition, when selecting the unit time mentioned above, in the case of rotary kilns and vertical windows (see Figures 2 and 3) where there is almost no fluctuation in the exhaust gas components, a short measurement time is sufficient; (Refer to Figure 1), in a kiln that consists of multiple kilns and the flow of combustion gas changes periodically, select a time or time when the gas flow is stable at least within this cycle to make measurements. is necessary.
例えば、通風時間１０分、停止時間１分、切替時間１分
の場合は、１２分を１サイクルとして採用するとか、第
４図に示す如く通風１０分前後の立上りおよび降下を除
いて安定した部分の測定値を採用すればよい、すなわち
、第４図は第１図に示すような二つの焼成窯を有するメ
ルツ窯の第１の窯の排ガスの分析値を経時に随って示す
ものであり、図において４分〜１４分、２８分〜３８分
、５２分〜６２分の間で炭酸ガスが略１８％、酸素が略
１４％、−酸化炭素が０．５〜１％と略安定している。For example, if the ventilation time is 10 minutes, the stop time is 1 minute, and the switching time is 1 minute, 12 minutes is used as one cycle, or as shown in Figure 4, the period of ventilation is stable except for the rise and fall around 10 minutes. In other words, Fig. 4 shows the analysis values of the exhaust gas from the first kiln of the Merz kiln, which has two firing kilns as shown in Fig. 1, over time. , in the figure, between 4 minutes to 14 minutes, 28 minutes to 38 minutes, and 52 minutes to 62 minutes, carbon dioxide gas is approximately 18%, oxygen is approximately 14%, and carbon oxide is approximately stable at 0.5 to 1%. ing.
尚、図において炭酸ガスの変化曲線の谷間部分では第２
窯が焼成作動をしているものである。In addition, in the figure, in the valley part of the carbon dioxide gas change curve, the second
The kiln is in firing mode.
以上のようにして、燃料の燃焼状態、すなわち、排ガス
中の炭酸ガスの量が測定されれば、石灰石の分解によっ
て生じた炭酸ガス量を次のようにして知ることができる
。If the combustion state of the fuel, that is, the amount of carbon dioxide gas in the exhaust gas is measured as described above, then the amount of carbon dioxide gas produced by decomposition of limestone can be determined as follows.
燃料の炭素（Ｃ）十酸素（Ｏ３）−炭酸ガス（ＣＯ、）
排ガス中のＯｌが測定されると、この０２は、燃料の燃
焼に消費された０、の残余である。Fuel Carbon (C) Ten Oxygen (O3) - Carbon dioxide (CO, )
When Ol in the exhaust gas is measured, this 02 is the remainder of the 0 consumed in the combustion of the fuel.
空気中の０２は２１％窒素ガスは１９％であるので、こ
れから燃料の燃焼に消費された０２が決まると燃料より
生ずるＣＯ，が判明する。Since 02 in the air is 21% and nitrogen gas is 19%, if the 02 consumed in fuel combustion is determined from this, the CO generated from the fuel can be determined.
排ガス中のＣＯｌから上記燃料よりのＣＯ２を差引くと
石灰石の分解により生ずるＣＯ，が決まる。すなわち、
窯内の燃焼の経時変化（Ｃｏ、量の変化）を測定するこ
とによって石灰石分解の経時変化（焼成状況）が把握で
きるものであり、この測定値に基づいて、燃料の増減、
空気の増減、窯出し生石灰量の増減を行うことによって
焼成度の均一な生石灰を得ることができるものである。By subtracting the CO2 from the fuel from the COl in the exhaust gas, the CO produced by the decomposition of limestone is determined. That is,
By measuring the change in combustion over time (change in Co, amount) in the kiln, it is possible to understand the change in limestone decomposition over time (calcination status), and based on this measurement, it is possible to determine the increase or decrease in fuel,
Quicklime with a uniform degree of firing can be obtained by increasing or decreasing the amount of air and the amount of quicklime taken out of the kiln.
尚、上述のような排ガスの測定に当たって、メルツ窯の
如く複数個の窯を交互に運転するものでは、それぞれの
窯の焼成状態が安定した時点を選んで測定することが肝
要である。In measuring the exhaust gas as described above, in a case where a plurality of kilns are operated alternately, such as a Merz kiln, it is important to select a point in time when the firing state of each kiln is stable.
また、上述の説明は、主として排気ガス中の炭酸ガス量
を測定しての焼成制御について説明したが、排気ガス中
の酸素、−酸化炭素、亜硫酸ガス等も同時に測定して燃
料の増減や燃焼空気量の増減をすれば好ましいのは勿論
である。In addition, the above explanation mainly focused on firing control by measuring the amount of carbon dioxide in the exhaust gas, but oxygen, carbon oxide, sulfur dioxide, etc. in the exhaust gas can also be measured at the same time to determine the increase or decrease of fuel and combustion control. Of course, it is preferable to increase or decrease the amount of air.
以上は、焼成窯よりの排気ガスを測定した制御について
の説明であるが、このような生石灰焼成窯では、上述、
排気ガスの測定と併せて窯内要部の温度を測定すること
によって窯内の詰りゃ燃焼ガスの偏流等を察知すること
ができ、最適の焼成をなすことができる０例えば、第２
図に示すロタリー型の窯では、石灰石は右端のホ・ノ）
＜−１カ）ら供給され、一方、焼成用のバーナー２は左
端番二設けられており、石灰石を加熱したのち、その排
ガスは石灰石を予熱したのち、右端から排出するように
しである。従って、窯内が詰った場合、加熱ガスの偏流
が生じたり、また、部分的に過熱する等して焼戻を生ず
ることとなるが、このような場合、所定の加熱温度が決
まっている焼成帯や予熱帯の要所の温度を測定すれば、
異常が直ちに察知でき、焼戻や過焼等を防止できるもの
である。The above is an explanation of control by measuring exhaust gas from a firing kiln, but in such a quicklime firing kiln, the above-mentioned
By measuring the temperature of the main parts inside the kiln together with the exhaust gas measurement, it is possible to detect clogging in the kiln, uneven flow of combustion gas, etc., and to achieve optimal firing.
In the rotary-type kiln shown in the figure, the limestone is located at the far right (ho).
On the other hand, the burner 2 for firing is provided at the left end, and after heating the limestone, the exhaust gas is discharged from the right end after preheating the limestone. Therefore, if the inside of the kiln becomes clogged, the heating gas may drift unevenly, or it may partially overheat, resulting in tempering. If you measure the temperature at key points in the belt and preheating zone,
Abnormalities can be detected immediately and tempering, over-firing, etc. can be prevented.
このことは、第１図に示すメルツ窯でも第３ずに示す竪
型窓でも同様であり、特に、第１図に示すメルツ窯では
左右の窯（Ｉ、ｎ）が焼成と予熱とに交互に切換えられ
、内部のガス流もチャンネルＣ部を境にして変化する？
Ｔ、焼成部、チャンネル部の温度管理は重要である。This is the same for both the Merz kiln shown in Figure 1 and the vertical window shown in the third column.In particular, in the Merz kiln shown in Figure 1, the left and right kilns (I, n) alternate between firing and preheating. , and the internal gas flow also changes across channel C?
Temperature control of the T, firing section, and channel section is important.
以上のように、この発明では、生石灰の焼成窯の排ガス
成分を測定することによって焼成窯への燃料の供給等の
補正を行うと共に、窯内要所の温度を測定してこれを補
正することによって適正な焼成温度を維持することがで
きるもので、従来、窯から取出した後でなければ判らな
かった硬焼や焼戻を焼成中に防止して均一な品質の生石
灰の製造を可能にするものである。As described above, the present invention corrects the supply of fuel to the kiln by measuring the exhaust gas components of the kiln for calcining quicklime, and also measures the temperature at important points in the kiln to correct the same. This makes it possible to maintain an appropriate firing temperature, and prevents hard calcination and tempering during firing, which was previously only noticeable after taking the lime out of the kiln, making it possible to produce quicklime of uniform quality. It is something.
政石灰の焼成窯からの排ガスの測定値として各成分濃度
が
Ｃｏ、 １７．７％
０、 １３．８％
（：Ｑ ０．１％
Ｎ、 ６８．４％
が得られた。The measured values of the exhaust gas from the lime kiln were as follows: Co, 17.7%, 0.1%, N, 13.8% (:Q, 0.1%, N, 68.4%).
１３８％×１９
空気中のｏ、＝ 、、、 ＝１５．９％従っ
て、２１％−１５，９％＝５．１％燃料よりのｃｏ、＝
ｓ、ｉ％Ｘ０．９ ＝４．６％一方、ｃｏｉ＝ １７
．７％ｘ７９ ２６．４％６８．４
従って、石灰石の分解によって生ずるＣＯ３は、２０．
４％−４，６％＝１５．８％
このとき、操業中の焼成燃焼用空気は４００Ｏｎｆ ／
Ｈまた、製品冷却用の空気は３０００ｎｆ ／ Ｈで
ある。138% x 19 o in air = , , , = 15.9% Therefore, 21% - 15.9% = 5.1% co from fuel =
s, i%X0.9 = 4.6% while coi = 17
．． 7% x 79 26.4% 68.4 Therefore, the CO3 produced by the decomposition of limestone is 20.
4% - 4.6% = 15.8% At this time, the firing combustion air during operation is 400 Onf /
Also, the air for product cooling is 3000nf/H.
排ガスの総量をｘ ｒｄ ／ Ｈとすると、７０００ｒ
ｒｒ ｘ ０１１５９ ｘｌｏｏ １３，８ｘ ＝
８０６５ｒｒｒ／ Ｈ
同様にしてＣＯ，では
ｘ ＝ ８０６８ｒｒｒ／ Ｈ
従って、石灰石の分解で生ずるＣＯｌは、８０６５ｎｆ
−７００Ｏｎ？ ＝ １０６５ｎ？ ／ Ｈ排ガス中
の総ＣＯ，は、
８０６５／ ＨＸ ０．１７７ ＝ １４２８ｎ？ ／
Ｈ従って、燃料よりのＣＯ，は、
１４２８ｎ？／Ｈ−１０６５ｎｆ／Ｈ＝３６３ ｎｆ／
Ｈすなわち、排ガスを分析することによって、使用空気
量が判明している場合、
１）排ガス量＝ ８０６８ｒｒｒ ／ Ｈ２）排ガス中
のＣｏ、 ＝ １−４２８ｎｆ ／ Ｈ３）排ガス中の
Ｏ，＝ １１１３ｒｒｒ ／ Ｈ４）排ガス中のＣ０＝
８耐／Ｈ
５）排ガス中のＮ、＝ ５５１９ｎｆ ／ Ｈ６）燃焼
空気＋冷却空気＝＝ ７０００ｒｒｒ ／ Ｈ７）燃料
の燃焼に伴うＣｏ、＝３６３ ｒ＋？／Ｈ８）石灰石の
分解によって発生する
Ｃｏ、 ＝ １０６５ｎｆ／Ｈ
以上の計算例のように、排ガスを測定分析することによ
って、燃料の燃焼によるＣＯ３、石灰石の分解によるＣ
Ｏ，が判明する。これらの数値と窯内要所の温度とによ
って焼成窯内の燃焼（加熱）の状態、原石の分解の状態
等が判明するので、これ等の数値が適正化するように燃
料の増減や空気の増減を行えばよいものである。If the total amount of exhaust gas is x rd / H, then 7000r
rr x 01159 xloo 13,8x =
8065rrr/H Similarly, for CO, x = 8068rrr/H Therefore, COl produced by the decomposition of limestone is 8065nf
-700On? = 1065n? /H The total CO in the exhaust gas is 8065/HX 0.177 = 1428n? /
H Therefore, CO from fuel is 1428n? /H-1065nf/H=363nf/
H That is, if the amount of air used is known by analyzing the exhaust gas, 1) Amount of exhaust gas = 8068 rrr / H2) Co in the exhaust gas = 1-428nf / H3) O in the exhaust gas = 1113 rrr / H4 ) C0 in exhaust gas =
8 resistance/H 5) N in exhaust gas = 5519nf / H6) Combustion air + cooling air = = 7000 rrr / H7) Co associated with fuel combustion = 363 r+? /H8) Co generated by the decomposition of limestone = 1065nf/H As in the calculation example above, by measuring and analyzing the exhaust gas, it is possible to calculate
O, becomes clear. These values and the temperature at key points inside the kiln determine the state of combustion (heating) inside the kiln, the state of decomposition of the raw stone, etc., so increase or decrease the amount of fuel or increase or decrease the amount of air in order to optimize these values. All you have to do is increase or decrease it.
これと同時に測定した窯内の要部（焼成帯、予熱帯）の
温度を基にして窯内のガスの流動１石灰石の焼成量をコ
ントロールすることと併せて従来発生した焼戻等を完全
に防止できるものである。At the same time, based on the temperature of the main parts of the kiln (firing zone, preheating zone) measured at the same time, the flow of gas in the kiln, the amount of calcined limestone, and the like are completely eliminated. It is preventable.
以上説明した如く、この発明は、生石灰の焼成窯におい
て従来、焼成窯から取出し後でなければ発見できなっか
った硬焼、軟焼等の不良生石灰の発生や焼戻等を焼成中
に察知して防止できるものであり、然も、その操作は、
焼成窯からの排気ガスと窯内要所の温度の測定で足りる
ものであり、生石灰製造止揚られる利益は莫大なもので
ある。As explained above, the present invention detects the occurrence of defective quicklime, such as hard-burning or soft-burning, and tempering, which conventionally could only be detected after taking the lime out of the kiln, as well as tempering. However, the operation can be prevented by
It is sufficient to measure the exhaust gas from the kiln and the temperature at key points within the kiln, and the profits from producing quicklime are enormous.
第１図は、生石灰焼成用のメルツ窯の概略の側面図、第
２図は、同じく横型窓の概略の側面図、第３図は、同じ
く竪型窓の概略の縦断面図、第４図は、メルツ窯におけ
る排ガスの成分の経時変化を示すグラフである。Fig. 1 is a schematic side view of a melt kiln for burning quicklime, Fig. 2 is a schematic side view of the horizontal window, Fig. 3 is a schematic longitudinal sectional view of the vertical window, and Fig. 4 is a graph showing changes over time in exhaust gas components in a Melz kiln.
Claims (4)
て、炉内の温度および所定の単位時間に発生する排ガス
中の少なくとも炭酸ガス、酸素の総量またはこれらの排
ガス中の百分率を求めると共に、これらの排ガス中の総
量または百分率に基づいて燃料を調節することを特長と
する生石灰の製造制御方法。(1) In a lime kiln that burns limestone to produce quicklime, determine the temperature inside the kiln and at least the total amount of carbon dioxide and oxygen in the exhaust gas generated in a predetermined unit time, or the percentage of these in the exhaust gas. A quicklime production control method characterized by adjusting fuel based on the total amount or percentage in the exhaust gas.
熱帯、焼成帯、冷却帯、さらにメルツ窯の如く複数個の
炉が連結された窯では、その連結部の温度も併せて測定
することを特長とする請求項（１）記載の生石灰の製造
制御方法。(2) When measuring the temperature inside the furnace, the temperature of the preheating zone, firing zone, cooling zone, and in the case of kilns where multiple furnaces are connected, such as a Melz kiln, is also measured at the connecting part. The quicklime production control method according to claim 1, characterized in that:
行うことを特長とする請求項（１）記載の生石灰の製造
制御方法。(3) The quicklime production control method according to claim (1), characterized in that the temperature and the generated exhaust gas are continuously measured.
行うことを特長とする請求項（１）記載の生石灰の製造
制御方法。(4) The quicklime manufacturing control method according to claim (1), characterized in that the temperature and the generated exhaust gas are measured intermittently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18442888A JPH0234543A (en) | 1988-07-22 | 1988-07-22 | Method for controlling production of quick line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18442888A JPH0234543A (en) | 1988-07-22 | 1988-07-22 | Method for controlling production of quick line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0234543A true JPH0234543A (en) | 1990-02-05 |
Family
ID=16152981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18442888A Pending JPH0234543A (en) | 1988-07-22 | 1988-07-22 | Method for controlling production of quick line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0234543A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100737417B1 (en) * | 2001-09-27 | 2007-07-09 | 주식회사 포스코 | Method for producing burn lime in shaft klin |
| CN103542714A (en) * | 2012-07-13 | 2014-01-29 | 蒋明学 | Large partition wall type multi-tube shaft kiln |
| JPWO2020203630A1 (en) * | 2019-03-29 | 2020-10-08 | ||
| JPWO2020203629A1 (en) * | 2019-03-29 | 2020-10-08 |
-
1988
- 1988-07-22 JP JP18442888A patent/JPH0234543A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100737417B1 (en) * | 2001-09-27 | 2007-07-09 | 주식회사 포스코 | Method for producing burn lime in shaft klin |
| CN103542714A (en) * | 2012-07-13 | 2014-01-29 | 蒋明学 | Large partition wall type multi-tube shaft kiln |
| JPWO2020203630A1 (en) * | 2019-03-29 | 2020-10-08 | ||
| JPWO2020203629A1 (en) * | 2019-03-29 | 2020-10-08 | ||
| WO2020203629A1 (en) * | 2019-03-29 | 2020-10-08 | Ｊｆｅスチール株式会社 | Method and apparatus for producing quick lime using coke dry quenching facility |
| WO2020203630A1 (en) * | 2019-03-29 | 2020-10-08 | Ｊｆｅスチール株式会社 | Method and apparatus for producing quick lime using coke dry quenching facility and heat exchanger |
| CN113614048A (en) * | 2019-03-29 | 2021-11-05 | 杰富意钢铁株式会社 | Method and apparatus for producing quick lime using coke dry fire extinguishing equipment and heat exchanger |
| CN113614049A (en) * | 2019-03-29 | 2021-11-05 | 杰富意钢铁株式会社 | Method and apparatus for producing quick lime using coke dry fire extinguishing equipment |
| EP3950634A4 (en) * | 2019-03-29 | 2022-06-01 | JFE Steel Corporation | Method and apparatus for producing quick lime using coke dry quenching facility and heat exchanger |
| EP3950633A4 (en) * | 2019-03-29 | 2022-06-08 | JFE Steel Corporation | Method and apparatus for producing quick lime using coke dry quenching facility |
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