WO2016009797A1 - 回転炉床炉 - Google Patents
回転炉床炉 Download PDFInfo
- Publication number
- WO2016009797A1 WO2016009797A1 PCT/JP2015/068107 JP2015068107W WO2016009797A1 WO 2016009797 A1 WO2016009797 A1 WO 2016009797A1 JP 2015068107 W JP2015068107 W JP 2015068107W WO 2016009797 A1 WO2016009797 A1 WO 2016009797A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- furnace
- rotary hearth
- exhaust gas
- outside
- hearth furnace
- Prior art date
Links
- 238000007599 discharging Methods 0.000 claims abstract description 45
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 71
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 50
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 46
- 238000005192 partition Methods 0.000 claims description 22
- 239000000126 substance Substances 0.000 claims description 17
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 239000007789 gas Substances 0.000 description 97
- 229910052742 iron Inorganic materials 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 229910001648 diaspore Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- -1 for example Substances 0.000 description 1
- 229910001679 gibbsite Inorganic materials 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
- C21B13/105—Rotary hearth-type furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/12—Working chambers or casings; Supports therefor
- F27B3/16—Walls; Roofs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/18—Arrangements of devices for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/19—Arrangements of devices for discharging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/22—Arrangements of air or gas supply devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate material
Definitions
- the present invention relates to a rotary hearth furnace. More specifically, the present invention heats agglomerates containing iron oxide-containing substances such as iron ore and iron-making dust, and carbonaceous reducing agents such as carbonaceous materials, and reduces iron oxide to produce reduced iron.
- the present invention relates to a rotary hearth furnace used for the above.
- the rotary hearth furnace is provided with an exhaust port and the like for discharging the exhaust gas in the furnace to the outside of the furnace.
- the means for supplying the agglomerate onto the hearth of the rotary hearth furnace and the means for discharging the heated object heated inside the rotary hearth furnace are directly connected to the outside of the furnace.
- outside air may flow into the furnace from the outside.
- the inflowing outside air contains an oxidizing gas such as oxygen, which causes a reduction rate of reduced iron.
- Patent Document 1 proposes a method for producing reduced iron that prevents reduction inhibition by an oxidizing gas by appropriately controlling the gas flow in the furnace.
- a heating / reduction process for reducing iron to produce reduced iron a melting process for melting the reduced iron, a cooling process for cooling the molten reduced iron, and a discharge process for discharging the cooled reduced iron outside the furnace
- a flow rate adjusting partition wall for controlling the gas flow in the furnace is provided in the furnace, and the gas flow in the furnace in the cooling process is formed in the hearth moving direction.
- the gas pressure in the furnace in the melting process may be made higher than the gas pressure in the furnace
- the gas flow in the furnace is controlled by providing a flow rate adjusting partition wall.
- a flow rate adjusting partition wall in order to control the direction of gas flow in the furnace by reducing the amount of gas flowing into the furnace, it is necessary to make the gap between the flow control partition wall and the hearth as small as possible and increase the flow rate of gas passing through the gap.
- the object to be heated that has not been discharged to the outside of the furnace accumulates on the hearth or a part of the refractory that protects the furnace falls on the hearth, a bulky load is formed on the hearth. There is a possibility that the load on the hearth does not pass through the gap between the flow rate adjusting partition wall and the hearth and closes the gap.
- the present invention has been made paying attention to the above-described circumstances, and an object thereof is to provide a rotary hearth furnace that can effectively use the sensible heat of exhaust gas in the furnace and improve the productivity of reduced iron. There is.
- the rotary hearth furnace according to the present invention which has been able to solve the above problems, is to produce a reduced iron by heating an agglomerate containing an iron oxide-containing substance and a carbonaceous reducing agent and reducing the iron oxide.
- the gist of the present invention resides in that means for taking outside air into the furnace is provided in the section and upstream of the means for discharging the exhaust gas to the outside of the furnace in the non-heating section and in the exhaust gas flow direction.
- the means for taking in the outside air into the furnace includes an adjusting valve for adjusting the amount of the taken-in gas.
- the means for taking the outside air into the furnace may include a blower.
- the rotary hearth furnace may have a partition wall that divides the heating section and the non-heating section.
- the means for discharging the exhaust gas in the furnace to the outside of the furnace is provided in the non-heating section in the rotary hearth, and the means for discharging the exhaust gas in the non-heating section and out of the furnace.
- a means for taking outside air into the furnace is provided on the upstream side.
- the present inventor In producing a reduced iron by heating an agglomerate containing an iron oxide-containing substance and a carbonaceous reducing agent, the present inventor effectively uses the sensible heat of exhaust gas in the furnace to reduce the reduced iron. In order to improve the productivity, we have been intensively studying. As a result, the present inventor provided means for discharging the exhaust gas in the furnace to the outside of the furnace in the non-heating section in the rotary hearth furnace, and the exhaust gas in the non-heating section and in the furnace was discharged outside the furnace.
- FIG. 1 is a simplified view of the rotary hearth furnace disclosed in Patent Document 1 described above.
- FIG. 1 is a schematic diagram when viewed from above the rotary hearth furnace 1.
- means 2 for supplying agglomerates onto the hearth of the rotary hearth furnace 1 means 3 for discharging the heated object heated in the rotary hearth furnace 1, and the inside of the rotary hearth furnace 1
- the means 2 to 4 are projected on the hearth.
- the means 2 for supplying the agglomerate onto the hearth of the rotary hearth furnace 1 and the means 4 for discharging the exhaust gas in the rotary hearth furnace 1 to the outside of the furnace are provided on the ceiling of the rotary hearth furnace 1.
- the means 3 for discharging the heated object heated in the rotary hearth furnace 1 to the outside of the furnace is provided in the vicinity of the hearth of the rotary hearth furnace 1.
- a feeder can be used as the means 2 for supplying the agglomerate onto the hearth of the rotary hearth furnace 1.
- a discharger can be used as the means 3 for discharging the object heated in the rotary hearth furnace 1 to the outside of the furnace.
- an exhaust port may be provided.
- An arrow 11 a indicated by a rough dotted line and an arrow 11 b indicated by a fine dotted line indicate the exhaust gas flow direction in the rotary hearth furnace 1.
- the agglomerates are preferably reduced by heating at 1300 ° C. or more and 1500 ° C. or less.
- the heating temperature is lower than 1300 ° C., metallic iron and slag are difficult to melt, and high productivity cannot be obtained.
- the heating temperature exceeds 1500 ° C., the exhaust gas temperature becomes high, so the exhaust gas treatment facility becomes large and the equipment cost increases.
- the present invention is not limited to the above-described embodiment, and the elements of the above-described embodiment can be appropriately combined or various changes can be made without departing from the gist thereof.
- matters that are not explicitly disclosed, such as operating conditions and measurement conditions, various parameters, dimensions, weights, volumes, and the like of a component deviate from a range that is normally implemented by those skilled in the art. Instead, values that can be easily assumed by those skilled in the art are employed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Tunnel Furnaces (AREA)
Abstract
Description
2 炉床上に供給する手段
3 回転炉床炉1内で加熱した被加熱物を炉外へ排出する手段
4 回転炉床炉1内の排ガスを炉外へ排出する手段
5a~5c 仕切壁
6 排ガスの分岐位置
7 外気を炉内へ取り込む手段
8 調整弁
9 送風機
10 塊成物の移動方向
11a、11b 炉内の排ガスの流れ方向
Z1、Z1a、Z1b 加熱区間
Z2 非加熱区間
Claims (5)
- 酸化鉄含有物質および炭素質還元剤を含む塊成物を加熱し、酸化鉄を還元して還元鉄を製造する際に用いる回転炉床炉であって、
前記回転炉床炉は、
前記塊成物を前記回転炉床炉の炉床上に供給する手段、
前記回転炉床炉内で加熱した被加熱物を炉外へ排出する手段、および、
前記回転炉床炉内の排ガスを炉外へ排出する手段を備え、
加熱区間および非加熱区間を有し、且つ、
前記排ガスを炉外へ排出する手段は、前記非加熱区間内に設けられ、
前記非加熱区間内、且つ排ガス流れ方向において前記排ガスを炉外へ排出する手段よりも上流側に、外気を炉内へ取り込む手段を設けたことを特徴とする回転炉床炉。 - 前記外気を炉内へ取り込む手段は、取り込みガス量を調整する調整弁を備える請求項1に記載の回転炉床炉。
- 前記外気を炉内へ取り込む手段は、送風機を備える請求項1に記載の回転炉床炉。
- 前記外気を炉内へ取り込む手段は、送風機を備える請求項2に記載の回転炉床炉。
- 前記加熱区間と前記非加熱区間を区切る仕切壁を有する請求項1~4のいずれか1項に記載の回転炉床炉。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580037689.8A CN106488989B (zh) | 2014-07-16 | 2015-06-23 | 转底炉 |
CA2953892A CA2953892C (en) | 2014-07-16 | 2015-06-23 | Rotary hearth furnace |
UAA201701408A UA116319C2 (uk) | 2014-07-16 | 2015-06-23 | Піч з обертовим подом |
US15/324,087 US10294535B2 (en) | 2014-07-16 | 2015-06-23 | Rotary hearth furnace |
RU2017101528A RU2655423C1 (ru) | 2014-07-16 | 2015-06-23 | Печь с вращающимся подом |
EP15821445.2A EP3170909A4 (en) | 2014-07-16 | 2015-06-23 | Rotary hearth furnace |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014146141A JP6185435B2 (ja) | 2014-07-16 | 2014-07-16 | 回転炉床炉 |
JP2014-146141 | 2014-07-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016009797A1 true WO2016009797A1 (ja) | 2016-01-21 |
Family
ID=55078297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/068107 WO2016009797A1 (ja) | 2014-07-16 | 2015-06-23 | 回転炉床炉 |
Country Status (8)
Country | Link |
---|---|
US (1) | US10294535B2 (ja) |
EP (1) | EP3170909A4 (ja) |
JP (1) | JP6185435B2 (ja) |
CN (1) | CN106488989B (ja) |
CA (1) | CA2953892C (ja) |
RU (1) | RU2655423C1 (ja) |
UA (1) | UA116319C2 (ja) |
WO (1) | WO2016009797A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018012287A1 (ja) * | 2016-07-15 | 2018-01-18 | 株式会社神戸製鋼所 | 回転炉床炉および回転炉床炉を用いた還元鉄の製造方法 |
CN109387076A (zh) * | 2017-08-09 | 2019-02-26 | 中外炉工业株式会社 | 转底炉及其改造方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6185435B2 (ja) * | 2014-07-16 | 2017-08-23 | 株式会社神戸製鋼所 | 回転炉床炉 |
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JPS5776123A (en) * | 1980-10-30 | 1982-05-13 | Kawasaki Steel Corp | Rotating hearth type continuous heat-treatment furnace |
JP2001181721A (ja) * | 1999-10-15 | 2001-07-03 | Kobe Steel Ltd | 還元鉄又は非鉄金属製造設備、及び還元鉄又は非鉄金属製造方法 |
JP2009256746A (ja) * | 2008-04-18 | 2009-11-05 | Nippon Steel Engineering Co Ltd | 回転炉床炉の加熱燃焼領域の炉温調整方法および回転炉床炉 |
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- 2015-06-23 US US15/324,087 patent/US10294535B2/en active Active
- 2015-06-23 WO PCT/JP2015/068107 patent/WO2016009797A1/ja active Application Filing
- 2015-06-23 UA UAA201701408A patent/UA116319C2/uk unknown
- 2015-06-23 EP EP15821445.2A patent/EP3170909A4/en not_active Withdrawn
- 2015-06-23 CA CA2953892A patent/CA2953892C/en active Active
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WO2018012287A1 (ja) * | 2016-07-15 | 2018-01-18 | 株式会社神戸製鋼所 | 回転炉床炉および回転炉床炉を用いた還元鉄の製造方法 |
CN109387076A (zh) * | 2017-08-09 | 2019-02-26 | 中外炉工业株式会社 | 转底炉及其改造方法 |
CN109387076B (zh) * | 2017-08-09 | 2021-10-22 | 中外炉工业株式会社 | 转底炉及其改造方法 |
Also Published As
Publication number | Publication date |
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CA2953892A1 (en) | 2016-01-21 |
UA116319C2 (uk) | 2018-02-26 |
RU2655423C1 (ru) | 2018-05-28 |
CN106488989A (zh) | 2017-03-08 |
US10294535B2 (en) | 2019-05-21 |
US20170198365A1 (en) | 2017-07-13 |
CN106488989B (zh) | 2019-10-25 |
CA2953892C (en) | 2019-02-19 |
JP6185435B2 (ja) | 2017-08-23 |
JP2016023319A (ja) | 2016-02-08 |
EP3170909A4 (en) | 2017-12-13 |
EP3170909A1 (en) | 2017-05-24 |
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