JPS63247316A - Method for treating sintering ore - Google Patents
Method for treating sintering oreInfo
- Publication number
- JPS63247316A JPS63247316A JP8126287A JP8126287A JPS63247316A JP S63247316 A JPS63247316 A JP S63247316A JP 8126287 A JP8126287 A JP 8126287A JP 8126287 A JP8126287 A JP 8126287A JP S63247316 A JPS63247316 A JP S63247316A
- Authority
- JP
- Japan
- Prior art keywords
- sintered
- layer
- sintering machine
- ore
- raw material
- 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
- 238000005245 sintering Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 abstract description 13
- 239000000843 powder Substances 0.000 abstract description 5
- 239000002918 waste heat Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は焼結鉱の処理方法に関し、さらに詳しくは効率
よく焼結鉱の排熱回収を図る方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for treating sintered ore, and more particularly to a method for efficiently recovering waste heat from sintered ore.
連続式焼結機は、第３図に示した特開昭５４−８２３０
３のように、焼結機ｌのパレット上に床敷鉱ホッパ２か
ら床敷鉱を供給し、原料ホッパ３から原料を供給し、こ
の原料層上面に点火炉４で着火し、焼結機１の終端部で
原料層の焼結が完了するように操業される。焼結が完了
した焼結鉱は、図示しない１次クラッシャーを経て、冷
却機に供給されるが、この焼結鉱は第４図に示すように
、パレット上の焼結層の厚さ方向に温度分布を有してお
り、焼結層の上半部は常温付近まで冷却されている。The continuous sintering machine is a Japanese Patent Application Laid-open No. 54-8230 shown in Fig. 3.
3, bedding ore is supplied from the bedding ore hopper 2 onto the pallet of the sintering machine l, raw material is supplied from the raw material hopper 3, the upper surface of this raw material layer is ignited in the ignition furnace 4, and the sintering machine The operation is performed so that the sintering of the raw material layer is completed at the end of step 1. The sintered ore that has been sintered is supplied to the cooler through a primary crusher (not shown), and as shown in Figure 4, the sintered ore is crushed in the thickness direction of the sintered layer on the pallet. The upper half of the sintered layer is cooled to around room temperature.
焼結鉱の有する顕熱は次工程の冷却機で回収されている
が、従来の技術では、この焼結層上層部の低温で粉率の
高い焼結鉱も冷却機に供給されるため、冷却機の冷却効
率が低下している。The sensible heat of the sintered ore is recovered in the cooling machine in the next process, but in conventional technology, the sintered ore in the upper layer of the sintered layer, which is at a low temperature and has a high powder content, is also supplied to the cooling machine. The cooling efficiency of the cooler has decreased.
従来の技術ではパレット上の焼結層上層部の低温で強度
が低く、粉率が高い部分も共に冷却機に供給されるため
、
■ 冷却機における冷却効率が低い。In the conventional technology, the upper part of the sintered layer on the pallet, which is low in temperature, has low strength, and has a high powder content, is also supplied to the cooler, so that the cooling efficiency in the cooler is low.
■ 冷却機の通風抵抗が大きい。■ The ventilation resistance of the cooler is large.
などの問題がある。There are other problems.
本発明は、このような問題点を改善した焼結鉱の処理方
法を提供することを目的とする。An object of the present invention is to provide a method for treating sintered ore that improves these problems.
本発明は、連続式焼結機のパレット上の焼結が完了した
部分のうち、低温で、かつ強度の低い焼結層上層部、す
なわち焼結層上面からほぼ１５０ｍｍまでの部分を、除
去装置により連続的に取り除き、この取り除いた上層部
の焼結鉱は冷却装置に供給せず、焼゛結機から排出され
る焼結層の中、下層部の焼結鉱のみを冷却装置に供給し
て顕熱を効率よく回収することを特徴とする焼結鉱の処
理方法である。The present invention uses a removal device to remove the upper part of the sintered layer, which is at a low temperature and has low strength, from the sintered part on the pallet of a continuous sintering machine, that is, the part up to approximately 150 mm from the top surface of the sintered layer. The removed sintered ore in the upper layer is not supplied to the cooling device, but only the sintered ore in the lower layer in the sintered layer discharged from the sintering machine is supplied to the cooling device. This is a method for processing sintered ore characterized by efficient recovery of sensible heat.
通常の操業の場合、焼結完了後の焼結機パレット上の焼
結層上層部の上面からほぼ１５０ｍｍまでの部分は、落
下強度が低く、１次クラッシャー以後での粉率が高い、
また、この焼結層上層部は焼結機上において、常温付近
まで冷却されている。In the case of normal operation, after sintering is completed, the portion of the sintered layer on the pallet of the sintering machine up to approximately 150 mm from the top has low fall strength and a high powder ratio after the primary crusher.
Further, the upper part of the sintered layer is cooled to around room temperature on the sintering machine.
この焼結層上層部を冷却機以前の段階で除去することに
よって、冷却機での処理量の低下、冷却機での処理鉱石
の粉率の低下、平均温度の上昇を達成することができ、
冷却機の冷却効率の向上、ＪＩＩＯ熱回収量の増加が可
能となる。By removing the upper part of this sintered layer before the cooling machine, it is possible to reduce the throughput in the cooling machine, reduce the powder ratio of ore processed in the cooling machine, and increase the average temperature.
It is possible to improve the cooling efficiency of the cooler and increase the amount of JIIO heat recovery.
なお、このパレット上の焼結層上層部は、焼結鉱強度が
低いため、焼結機パレット上から除去することは容易で
ある。Note that since the upper layer of the sintered layer on the pallet has low sintered ore strength, it is easy to remove it from the sintering machine pallet.
本発明の実施例を第１図、第２図、第４図を用いて説明
する。Embodiments of the present invention will be described using FIGS. 1, 2, and 4.
第１図に示すように、焼結ｆｉｔのパレット上に床敷鉱
ホッパ２から床敷鉱を供給し、原料ホッパ３から原料を
供給し、この原料層上表面に点火炉４で着火し、大気を
原料層上面から下面へと吸引し、焼結を行う。この焼結
機ｌのパレット進行方向後流側の部分では原料層上層部
は焼結が完了している。また、強度、温度共低いため、
焼結鉱層上に配置した除去装置６によって上層部を容易
に除去することができる。As shown in FIG. 1, bedding ore is supplied from a bedding ore hopper 2 onto a pallet of sintering fit, raw material is supplied from a raw material hopper 3, and the upper surface of this raw material layer is ignited in an ignition furnace 4. Sintering is performed by sucking air from the upper surface to the lower surface of the raw material layer. In the downstream side of the sintering machine 1 in the direction of pallet movement, the upper layer of the raw material layer has been sintered. In addition, since both strength and temperature are low,
The upper layer can be easily removed by the removal device 6 placed on the sintered ore layer.
この除去された焼結層上層部は除去装置６の後に配置さ
れたベルトコンベヤ７で系外へ取り出される。The removed upper layer of the sintered layer is taken out of the system by a belt conveyor 7 placed after the removal device 6.
この除去装置６は、第２図に示すように、排土板９で焼
結層５の上層部、すなわち上面から約１５０ｍｍの部分
を掘削集鉱し、この掘削された焼結鉱は、レーキチェー
ンコンベヤ８によっテ排土板９に沿って掻き上げられ、
後続のベルトコンベヤ７（第１図）へ投入される。排土
板９には図示しない掘削抵抗検出装置が設けられ、その
信号によって動作するシリンダ１０と支持装置１１によ
って傾斜を変更し、掘削量を適宜制御することにより、
焼結層上層部の強度の低い部分だけを除去し、焼結鉱妻
止の低下を防止している。As shown in FIG. 2, this removal device 6 collects ore by excavating the upper part of the sintered layer 5, that is, a portion approximately 150 mm from the top surface, using an earth removal plate 9. The soil is scraped up along the soil removal plate 9 by the chain conveyor 8,
It is fed into the subsequent belt conveyor 7 (FIG. 1). The earth removal plate 9 is provided with an excavation resistance detection device (not shown), and the inclination is changed by the cylinder 10 and the support device 11 operated by the signal thereof, and the amount of excavation is appropriately controlled.
Only the low-strength portion of the upper layer of the sintered layer is removed to prevent the sintered ore endpoint from decreasing.
以上のように、冷却機へ焼結鉱を供給する以前に、温度
が低くかつ強度が低く粉化し易い焼結機パレット上の焼
結層上層部を取り除くことにより、冷却機の処理量の低
下を防止し、また冷却機の通気性が改善されるので冷却
効率を高めることができる。さらに冷却機へ供給する焼
結鉱の平均温度が上昇することによって排熱回収効率が
高まり、排熱回収量を増加することが可能となる。As described above, by removing the upper layer of the sintered layer on the sintering machine pallet, which has low temperature, low strength, and is easily powdered, before supplying sintered ore to the chiller, the throughput of the chiller can be reduced. In addition, the air permeability of the cooler is improved, so cooling efficiency can be increased. Furthermore, by increasing the average temperature of the sintered ore supplied to the cooler, the efficiency of exhaust heat recovery increases, making it possible to increase the amount of exhaust heat recovery.
本発明による効果を以下に示す。 The effects of the present invention are shown below.
（１）パレット上の焼結層上層部の粉化し易い部分が冷
却の前段階で除去するため、冷却装置での通気抵抗が改
善され、冷却効率の増加、冷却ファンの省電力を図るこ
とができる。(1) Since the part of the upper layer of the sintered layer on the pallet that is easily powdered is removed before cooling, the ventilation resistance in the cooling device is improved, increasing cooling efficiency and saving power for the cooling fan. can.
（２）焼結鉱のうち冷却の必要のない部分を冷却機の前
段階で除去するため、冷却装置の処理量が少なくてすみ
、冷却効率の増加、冷却ファンの省電力を図ることがで
きる。(2) Since the portion of the sintered ore that does not require cooling is removed before the cooling machine, the amount of processing required by the cooling device is reduced, increasing cooling efficiency and saving power for the cooling fan. .
（３）冷却装置へ供給する焼結鉱の低温部の割合が減少
し、その平均、温度が上昇するので、排熱回収設備を有
する冷却装置では回収熱量が増加する。(3) The proportion of the low-temperature portion of the sintered ore supplied to the cooling device decreases, and its average temperature increases, so the amount of recovered heat increases in a cooling device equipped with exhaust heat recovery equipment.
第１図は本発明方法の実施に用いる焼結機の模式的側面
図、第２図は本発明方法に用いる焼結鉱除去装置の一例
の模式的側面図、第３図は従来の焼結機の模式側面図、
第４図は抽出直前における焼結鋼塊の厚さ方向の温度分
布曲線図である。
ｌ・・・焼結機 ２・・・床敷鉱ホッパ３・
・・原料ホッパ ４・・・点火炉５・・・焼結層
６・・・除去装置７・・・ベルトコンベヤ
８・・・レーキチェーンコンベヤ
９・・・排土板 ｌＯ・・・シリンダ１１・
・・支持装置Fig. 1 is a schematic side view of a sintering machine used in the method of the present invention, Fig. 2 is a schematic side view of an example of a sinter removal device used in the method of the present invention, and Fig. 3 is a schematic side view of a sintering machine used in the method of the present invention. Schematic side view of the machine,
FIG. 4 is a temperature distribution curve diagram in the thickness direction of the sintered steel ingot immediately before extraction. l... Sintering machine 2... Bed ore hopper 3.
... Raw material hopper 4 ... Ignition furnace 5 ... Sintered layer 6 ... Removal device 7 ... Belt conveyor 8 ... Rake chain conveyor 9 ... Soil removal plate 1O ... Cylinder 11
・・Support device
Claims (1)
強度の低い焼結層上層側を取り除き、焼結層の中、下層
部の焼結鉱のみを冷却装置に供給して、排熱を回収する
ことを特徴とする焼結鉱の処理方法。1 Remove the upper layer of the sintered layer, which is at a low temperature and has low strength, from the sintered part on the continuous sintering machine pallet, and only the sintered ore in the middle and lower layer of the sintered layer is supplied to the cooling device and discharged. A method for processing sintered ore characterized by recovering heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62081262A JPH0686635B2 (en) | 1987-04-03 | 1987-04-03 | Sintered ore processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62081262A JPH0686635B2 (en) | 1987-04-03 | 1987-04-03 | Sintered ore processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63247316A true JPS63247316A (en) | 1988-10-14 |
| JPH0686635B2 JPH0686635B2 (en) | 1994-11-02 |
Family
ID=13741449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62081262A Expired - Lifetime JPH0686635B2 (en) | 1987-04-03 | 1987-04-03 | Sintered ore processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0686635B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299064A (en) * | 1991-03-29 | 1994-03-29 | Canon Kabushiki Kaisha | Zoom lens of rear focus type |
| US5530592A (en) * | 1993-04-30 | 1996-06-25 | Canon Kabushiki Kaisha | Zoom lens of rear focus type |
| US5537255A (en) * | 1993-09-17 | 1996-07-16 | Canon Kabushiki Kaisha | Zoom lens |
| US5712733A (en) * | 1995-01-31 | 1998-01-27 | Canon Kabushiki Kaisha | Zoom lens of rear focus type |
| US5739961A (en) * | 1992-04-30 | 1998-04-14 | Canon Kabushiki Kaisha | Zoom lens |
| US6476977B1 (en) | 1999-10-20 | 2002-11-05 | Canon Kabushiki Kaisha | Zoom lens and optical apparatus |
| US6751028B1 (en) | 1998-03-10 | 2004-06-15 | Canon Kabushiki Kaisha | Zoom lens and optical apparatus using the same |
| CN102759864A (en) * | 2011-04-22 | 2012-10-31 | 东友精细化工有限公司 | Controlling device for preventing snaking of patterns of patterned films |
| JP2012251203A (en) * | 2011-06-02 | 2012-12-20 | Nippon Steel & Sumitomo Metal Corp | Method for cooling sintered ore, method and device for sorting out sintered ore |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3040364U (en) * | 1996-07-23 | 1997-08-19 | 清秀 中川 | Refillable pillow of aroma-containing substances |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56136937A (en) * | 1980-03-26 | 1981-10-26 | Mitsubishi Heavy Ind Ltd | Recovering method for sintering waste heat |
-
1987
- 1987-04-03 JP JP62081262A patent/JPH0686635B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56136937A (en) * | 1980-03-26 | 1981-10-26 | Mitsubishi Heavy Ind Ltd | Recovering method for sintering waste heat |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299064A (en) * | 1991-03-29 | 1994-03-29 | Canon Kabushiki Kaisha | Zoom lens of rear focus type |
| US5739961A (en) * | 1992-04-30 | 1998-04-14 | Canon Kabushiki Kaisha | Zoom lens |
| US5530592A (en) * | 1993-04-30 | 1996-06-25 | Canon Kabushiki Kaisha | Zoom lens of rear focus type |
| US5537255A (en) * | 1993-09-17 | 1996-07-16 | Canon Kabushiki Kaisha | Zoom lens |
| US5712733A (en) * | 1995-01-31 | 1998-01-27 | Canon Kabushiki Kaisha | Zoom lens of rear focus type |
| US6751028B1 (en) | 1998-03-10 | 2004-06-15 | Canon Kabushiki Kaisha | Zoom lens and optical apparatus using the same |
| US6476977B1 (en) | 1999-10-20 | 2002-11-05 | Canon Kabushiki Kaisha | Zoom lens and optical apparatus |
| CN102759864A (en) * | 2011-04-22 | 2012-10-31 | 东友精细化工有限公司 | Controlling device for preventing snaking of patterns of patterned films |
| JP2012251203A (en) * | 2011-06-02 | 2012-12-20 | Nippon Steel & Sumitomo Metal Corp | Method for cooling sintered ore, method and device for sorting out sintered ore |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0686635B2 (en) | 1994-11-02 |
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