WO2016099010A1 - 소결기 및 소결방법 - Google Patents
소결기 및 소결방법 Download PDFInfo
- Publication number
- WO2016099010A1 WO2016099010A1 PCT/KR2015/010309 KR2015010309W WO2016099010A1 WO 2016099010 A1 WO2016099010 A1 WO 2016099010A1 KR 2015010309 W KR2015010309 W KR 2015010309W WO 2016099010 A1 WO2016099010 A1 WO 2016099010A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sintering
- sintered
- oxygen
- raw material
- oxygen 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.)
- Ceased
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
Definitions
- the present invention relates to a sintering machine and a sintering method, and more particularly, to an invention for adjusting the formation of a glowing layer in which a sintered raw material for producing a sintered ore is burned.
- a sintered ore manufacturing process is a process of sintering fine iron ore to a size suitable for blast furnace use.
- the sintered raw material is pseudo-grained and charged at a predetermined height on the sintered trolley, and the sintered raw material is fired by forcibly sucking air from the lower side after ignition to manufacture the sintered ore.
- the sintered raw material stored in the upper light hopper 11 ′ and the sintered raw material stored in the surge hopper 12 ′ are charged and transported in the sintered bogie 50 ′, and the moving sintered bogie 50 is moved. ') Passes through the bottom of the ignition furnace (30'). At this time, the flame sprayed from the ignition furnace 30 'ignites the surface layer, which is the top of the sintered raw material accommodated in the sintered trolley 50'.
- the trolley passing through the ignition furnace 30 ' is transferred in the process progress direction by the transfer part 40', and at this time, the plurality of wind box parts 20 'in which the sintered trolley 50' is arranged in the process progress direction. Pass the upper side of.
- the upper layer portion is increased in surface area to have excellent reducibility but low strength, and the lower layer is solidified after melting of the sintered raw material layer. The problem arises that low sintered ore is produced.
- An object of the present invention is to provide a sintering machine and a sintering method for producing a sintered ore with excellent quality by uniformly burning the glowing layer in which the sintering raw material is burned.
- the sintering apparatus is located between the hopper portion for supplying the sintered raw material and the light distribution part for discharging the sintered raw material, and the transfer part for circulating the sintered bogie in which the sintered raw material is seated, the sintered bogie
- An ignition furnace part located behind the hopper part in a traveling direction, a wind box part provided under the sinter bogie to suck gas in the sinter bogie, and a region where the temperature of the glowing layer where the sintered raw material is burned is less than 1200 ° C.
- it may include a glowing layer uniform composition unit located behind the ignition furnace in the sintered trolley traveling direction.
- the glowing layer uniform composition unit of the sintering machine is located in the rear end of the ignition furnace in the sintered trolley traveling direction, the oxygen in the region where the temperature of the glowing layer is less than 1200 °C It may include an oxygen supply unit for supplying gas independently, and a fuel gas supply unit for supplying a fuel gas, located in the rear end of the oxygen supply unit in the advancing direction of the sintered trolley so as to be provided independently from the oxygen supply unit.
- the oxygen supply unit of the sintering apparatus may be provided in plural in the width direction of the sintering trolley, or may be provided on both side ends in the width direction of the sintering trolley.
- the oxygen supply portion of the sintering apparatus the hood member provided on the upper portion of the sintering bogie, the inside of the hood member, is connected to the oxygen pipe to the upper surface of the sintered raw material It may include a nozzle member for injecting oxygen gas and a buffer member for adjusting the pressure of the oxygen gas supplied to the oxygen pipe.
- the hood member of the sintering machine has a lower end portion provided with a height difference of 10 cm or less from the upper surface of the sintered bogie and the upper surface of the sintered raw material seated on the sintered bogie. It may be characterized by.
- W is the unit hood width (W) of the hood member provided with the nozzle member
- a is the injection angle (a) of the oxygen gas injected from the nozzle member.
- the sintering method is a charging step of supplying the sintered raw material to the sintered bogie circulating movement in the hopper unit, an ignition process for igniting the surface of the sintered raw material, the wind provided in the lower portion of the sintered bogie
- the ignition furnace part in the sinter bogie progressing direction so that a box sucks gas in the sinter bogie and supplies the firing step of burning the sinter raw material and a region where the temperature of the glowing layer where the sinter raw material is burned is less than 1200 ° C.
- It may include an oxygen blowing process for supplying oxygen gas independently from the oxygen supply unit located at the rear end.
- each of the oxygen supply unit provided with a plurality in the width direction of the sintering cart the oxygen in the region where the temperature of the glowing layer is less than 1200 °C It may be characterized in that the supply amount and the supply time of the gas is adjusted individually.
- the oxygen blowing step of the sintering method characterized in that the oxygen gas is blown into the sintered raw material seated on the side end portion of the sintered bogie prior to the sintered raw material seated on the central portion of the sintered bogie Can be.
- the oxygen blowing step of the sintering method the oxygen gas is blown onto the upper glowing layer on the basis of the center of the height direction of the glowing layer formed to be inclined while the sintering raw material is burned. As the uppermost in the height direction of the glowing layer, the oxygen gas may be blown more.
- the oxygen blowing step of the sintering method according to another embodiment of the present invention may be characterized in that the injection of the velocity of oxygen blown into the sintering material smaller than the speed of sound.
- the supply amount of the oxygen gas of the sintering method if the thickness of the glowing layer formed to be inclined while the sintering material is burned is less than 1.0% of the laminated thickness of the sintering material, the wind box is It may be characterized in that it is provided in more than 4.0% less than 10% of the total amount of gas to be sucked.
- the supply amount of the oxygen gas of the sintering method according to another embodiment of the present invention when the thickness of the glowing layer formed to be inclined while the sintering material is burned is 1.0% or more and less than 2.5% of the laminated thickness of the sintering material, It may be characterized in that the wind box is provided with less than 2.5% or more than 8.0% of the total amount of gas to be sucked.
- the supply amount of the oxygen gas of the sintering method according to another embodiment of the present invention when the thickness of the glowing layer formed to be inclined while the sintering material is burned is 2.5% or more compared to the thickness of the stacking of the sintering material, It may be characterized in that it is provided in less than 1.0% to less than 6.5% of the total amount of gas to be sucked.
- the sintering machine and the sintering method of the present invention have an effect of activating combustion by injecting oxygen to a portion where the heat-resistant layer is not uniformly formed due to insufficient heat in the sintered raw material layer during the sintering ore manufacturing process.
- the glowing layer may be uniformly formed in the height direction of the sintered raw material, thereby improving the quality of the produced sintered ore.
- the recovery rate can be increased by suppressing or preventing the strength decrease of the sintered ore due to the caloric shortage phenomenon.
- FIG. 1 shows a conventional sintering machine.
- FIGS. 2 and 3 are front views showing the sintering machine of the present invention.
- Figure 4 is a perspective view showing an oxygen supply in the sintering machine of the present invention.
- FIG. 5 is a cross-sectional view showing an oxygen supply unit in the sintering machine of the present invention.
- 6A and 6B are graphs showing a temperature distribution according to a height of a sintering material formed by a conventional sintering machine and the sintering machine.
- the sintering machine and the sintering method of the present invention relates to the invention for adjusting the formation of the glowing layer in which the sintered raw material (r) is burned to produce the sintered ore, the amount of heat inside the sintered raw material (r) layer during the sintered ore manufacturing process is insufficient Combustion may be activated by blowing oxygen into a portion where the glowing layer is not formed uniformly.
- the glowing layer is uniformly formed in the height direction of the sintered raw material r, thereby improving the quality of the produced sintered ore.
- the recovery rate can be increased by suppressing or preventing the decrease in the strength of the sintered ore due to the caloric shortage phenomenon.
- FIGS. 2 and 3 are front views illustrating the sintering machine of the present invention
- FIGS. 6A and 6B illustrate a temperature distribution according to the height of a conventional sintering machine and the sintering raw material r formed by the sintering machine. The graph shown.
- FIG. 2 illustrates an embodiment in which the uniform composition unit 100 includes only the oxygen supply unit 110 in the sintering machine of the present invention
- FIG. 3 shows that the uniform composition unit 100 is oxygen in the sintering machine of the present invention.
- An embodiment in which the supply unit 110 and the fuel gas supply unit 120 are separately included is shown.
- FIG. 6A shows a temperature distribution in a conventional sintering machine which does not blow oxygen independently
- FIG. 6B shows a temperature distribution in the sintering machine of the present invention which blows oxygen independently.
- the sintering machine according to an embodiment of the present invention the hopper 10 for supplying the sintering raw material (r) and the ship in which the sintering raw material (r) is sintered and discharged Located between the mining portion 60, the transfer portion 40 for circulating the sintered trolley 50 on which the sintered raw material (r) is seated, the rear portion of the hopper 10 in the traveling direction of the sintered trolley 50
- the ignition furnace part 30, which is provided in the lower portion of the sintered trolley 50, the wind box part 20 for sucking the gas inside the sintered trolley 50 and the glowing layer of the sintered raw material (r) is burned Independently supplying oxygen gas so as to be supplied to a region having a temperature of less than 1200 ° C., and may include a glowing layer uniform composition unit 100 located behind the ignition furnace part 30 in the traveling direction of the sintering cart 50. have.
- the glowing layer uniform composition unit 100 of the sintering machine is located at the rear end of the ignition furnace 30 in the traveling direction of the sintering cart 50, A rear end of the oxygen supply unit 110 in the advancing direction of the sintering cart 50 so as to be provided independently of the oxygen supply unit 110 and the oxygen supply unit 110 to supply the oxygen gas to a region having a temperature lower than 1200 ° C.
- Located in, it may include a fuel gas supply unit 120 for supplying a fuel gas.
- a uniform composition unit 100 as a basic configuration of the sintering machine hopper unit 10, the wind box unit 20, the ignition furnace unit 30, the transfer unit 40, the sintering cart 50 ), A light distribution unit 60, and a duct unit 70.
- the hopper unit 10 is assembled after the upper light hopper 11, the upper light stored in the bottom surface of the sintering cart 50, the upper light is charged and the coke used as the iron ore raw material and the solid fuel is assembled It may consist of a surge hopper 12 in which the blended raw material is stored.
- the sintered bogie 50 may be provided to receive the sintered raw material r and move in one direction, and the transfer part 40 may transfer a plurality of the sintered bogie 50 in the process progress direction.
- the ignition furnace part 30 may be provided on one side of the surge hopper 12 in the upper direction of the sintering trolley 50 and in a traveling direction of the sintering trolley 50.
- the ignition furnace part 30 forms a starting point for burning the sintering material r by spraying a flame on the surface layer of the sintering material r in the sintering cart 50.
- the wind box part 20 may be installed on the movement path of the sintering cart 50 to suck the inside of the sintering cart 50.
- the sintering apparatus of the present invention may include a calorific regulator for controlling the amount of heat in the sintering raw material (r), that is, the raw material layer in the sintering bogie 50, and is provided in the windbox part 20 to burn the raw material layer. It may include a detector for measuring the temperature of the exhaust gas and the oxygen concentration in the exhaust gas generated while, and a controller for controlling the operation of the calorimeter using the results detected by the detector.
- the movement path of the sintered bogie 50 forms a closed loop so that the sintered bogie 50 rotates in an endless track manner, and the upper side of the closed loop has a sintered raw material r inside the sintered bogie 50.
- the upper light hopper 11, the surge hopper 12, the ignition furnace section 30 is provided on the upper side of the upper path
- the wind box portion 20 is provided on the lower side of the upper side of the movement path
- the inside of the sintered trolley 50 which moves along a side movement path is suctioned.
- the sintered ore in which the sintering is completed in the sintered trolley 50 is discharged while the sintered trolley 50 moves from the upper moving path to the lower moving path, and the light distribution unit 60 is ignited in the upper moving path. It is located on the opposite side of the furnace (30).
- the sintered raw material (r) refers to the blended raw material provided from the upper light provided from the upper light hopper 11 and the surge hopper 12, and after the sintered raw material (r) is charged into the sintered bogie 50 It is called a raw material layer.
- the upper light hopper 11 is provided on the upper side of the upper side of the movement path of the sintered trolley 50, in order to prevent the great bar sintered raw material (r) formed at the bottom of the sintered trolley 50 to flow out. Charge the top light.
- the upper light selects the sintered ore having a particle size of about 8 to 15 mm in the characteristic sintered ore.
- the surge hopper 12 is provided next to the upper light hopper 11 in the advancing direction of the sintering bogie 50, and the sintered bogie r for producing sintered ore in the sinter bogie 50 is sintered bogie ( Charge 50).
- the surge hopper 12 evenly loads the sintered raw material r in the width direction of the sintering trolley 50 without particle size segregation and decreases the particle size from the lower side to the upper side in the depth direction of the sintering trolley 50. It is preferable to segregate and charge.
- the ignition furnace part 30 is provided after the surge hopper 12 in the advancing direction of the sintering bogie 50, and flames are formed on the surface layer of the raw material layer formed by charging the sintering raw material r into the sintering bogie 50. Supply to ignite.
- the wind box part 20 is provided in the movement path of the sintered trolley 50, more specifically, the lower side of the upper side movement path and sucks the inside of the sintered trolley 50 moving along the upper side movement path,
- the windbox part 20 may be provided between the ignition furnace part 30 and the light distribution part 60.
- a duct unit 70 may be provided at an end of the windbox part 20, and the duct unit 70 may include a duct 71, a dust collector 72, a chimney 73, a blue war, and the like. have.
- a blower 74 is installed at the end of the duct 71 to form the wind box part 20 at a negative pressure, thereby sucking the inside of the sintering cart 50, and the blower A dust collector 72 is installed in front of the 74 to filter impurities in the exhaust gas sucked through the wind box unit 20 and discharge the impurities through the chimney 73.
- the uniform composition unit 100 independently injects oxygen into a portion of the glowing layer where combustion starts by the ignition furnace part 30 at a temperature of at least 1200 ° C., thereby inducing a uniform composition of the glowing layer. That is, the present invention proposes a configuration in which only oxygen gas is blown into the glowing layer, separately from the mixture of oxygen and fuel gas.
- the uniform composition unit 100 may include an oxygen supply unit 110, the fuel gas supply unit 120.
- the oxygen supply unit 110 serves to blow only oxygen, and the fuel gas supply unit 120 serves to supply the fuel gas.
- the fuel gas supply unit 120 may supply a fuel gas mixed with oxygen, but the oxygen supply unit 110 supplies only oxygen.
- the region S for supplying only oxygen gas is secured by the oxygen supply unit 110.
- the principle of compensating for the calorific value of the heat-sufficient portion of the glowing layer by supplying only the oxygen gas to the sintered raw material layer is due to the promotion of combustion by the oxygen gas.
- the oxygen supply unit 110 may include a nozzle member 111, a buffer member 112, a hood member 113, a detailed description thereof will be described later with reference to FIG.
- FIG. 6A shows the depth of the sintered raw material layer for each depth at the center portion r1 and the side end portion r2 of the width direction of the sinter bogie 50 formed by the conventional sintering machine that does not blow oxygen gas independently. The results of the temperature distribution are shown.
- the central portion r1 and the side end portion r2 commonly form a glowing layer having a temperature much lower than 1200 ° C., and the glowing layer at the side end portion r2 has a central portion at the same measurement depth. It can be seen that the temperature rise is formed later than that of (r1).
- Fig. 6B shows the sintered raw material layer for each depth at the central portion r1 and the side end portion r2 of the width direction of the sintered trolley 50 formed by the sintering machine of the present invention which blows oxygen gas independently. The results of the temperature distribution are shown.
- the result shown in FIG. 6B is a case where the oxygen gas is blown at a low depth (0 to 20% after layering) of the laminated layer temperature in the embodiment of the present invention.
- the amount of oxygen gas blown in was 3.8% of the amount of air suctioned by the windbox part 20, and was injected for 180 seconds. After injecting the oxygen gas, it can be seen that a glowing layer is formed at the same time period in the sintered raw material r at the central portion r1 and the side end portion r2 in the width direction of the sintered trolley 50.
- the time of forming the glowing layer is simultaneously formed at the center portion (r1) and the side end portion (r2). It can be seen that the time is also increased more than three times compared to the existing.
- the sintering machine of the present invention can improve the quality of sintered ore production have.
- the recovery rate in the surface layer portion 10% of the total depth after layering may be increased, which will be described later with reference to FIG. 4. do.
- FIG. 4 is a perspective view of the oxygen supply unit 110 in the sintering machine of the present invention, referring to this, the oxygen supply unit 110 of the sintering machine according to an embodiment of the present invention, A plurality of pieces may be provided in the width direction, or may be provided at both side end portions r2 in the width direction of the sintering cart 50.
- the oxygen supply unit 110 of the sintering machine is provided in the hood member 113, the hood member 113 provided on the upper portion of the sintering cart 50, A buffer member connected to the oxygen pipe 111a to adjust the pressure of the oxygen gas supplied to the nozzle member 111 connected to the upper surface of the sintered raw material r and the oxygen pipe 111a to be supplied; 112).
- hood member 113 of the sintering machine according to an embodiment of the present invention, a lower end portion, the portion of the sintered bogie 50 and the sintered raw material (r) seated on the sintered bogie 50 is provided higher
- the height difference with the upper surface of the may be characterized in that provided below 10cm.
- the oxygen supply unit 110 may be installed at a position next to the ignition furnace unit 30 in the advancing direction of the sintering bogie 50, or may be installed with respect to the entire width direction of the sintering bogie 50. It can also be installed on some parts.
- both side end portions r2 in the width direction of the sintered trolley 50 are provided to be blown more than the central portion r1.
- the oxygen supply unit 110 may be provided to supply the oxygen gas for each position of the hood member 113 by providing the nozzle member 111 to the plurality of hood members 113 individually. That is, the oxygen gas may be supplied only to both side end portions r2 in the width direction of the sintered trolley 50 or may be provided to supply oxygen gas evenly to the entire width direction of the sintered trolley 50. It is.
- the oxygen supply unit 110 may be positioned above the sintering cart 50, and may have a shape in which the hood member 113 is divided by the number of division gates of the surge hopper 12. That is, it is possible to prevent the oxygen gas injected from the nozzle member 111 for supplying the oxygen gas to the vicinity after the partition is formed in each hood member 113 of each divided section.
- One or more nozzle members 111 may be installed in an independent space of the hood member 113, and the number of nozzle members 111 may vary depending on the injection angle.
- the height at which the hood member 113 of the oxygen supply unit 110 is provided is based on a lower end of the hood member 113 and an upper surface of the surface layer of the sintered raw material r when the material surface layer portion is higher than the sidewall of the sintering cart 50. 10 cm or less, and when the side wall of the sintered trolley 50 is high, it is preferably provided at an interval of 10 cm or less based on the lower end of the hood member 113 and the side wall of the sintered trolley 50. Do. This is to minimize the effect of the transverse wind flowing from the outside.
- the injection angle (a) for the supply of oxygen gas from the nozzle member 111 is set to match the number of divisions of the nozzle member 111 (the number of dividing gates of the surge hopper 12 or more). Desired. Detailed description thereof will be described later with reference to FIG. 5.
- FIG. 5 is a cross-sectional view of the oxygen supply unit 110 in the sintering machine of the present invention, referring to this, the nozzle member 111 of the sintering machine according to an embodiment of the present invention,
- W is the unit hood (113a) width (W) of the hood member 113
- the nozzle member 111 is provided
- a is the injection angle (a) of the oxygen gas injected from the nozzle member 111 )to be.
- the height of the nozzle member 111 is preferably the oxygen gas supplied to the front surface of the sintered raw material (r), the injection angle (a) of the injected oxygen gas, the width of the hood member 113 ( W) and so on.
- the height of the nozzle member 111 is adjusted, so that the oxygen gas with respect to the entire surface of the sintered raw material r. Will be able to spray.
- the distance between the nozzle member 111 and the surface layer portion of the sintered raw material (r) is differently applied depending on the shape of the nozzle member 111, but the high temperature refractory mass that is separated from the inside of the ignition furnace 30 is oxygen gas. In order not to touch the nozzle member 111 is sprayed, it is preferable not to be less than 20 cm.
- the sintering method is a charging step of supplying the sintered raw material (r) to the sintered bogie 50, which is circulated in the hopper 10, the ignition of the surface of the sintered raw material (r) Ignition process, a wind box provided in the lower portion of the sintered trolley 50 sucks gas in the sintered trolley 50 and burns the sintered raw material r, and the sintered raw material r is burned.
- Oxygen blowing to supply oxygen gas independently from the oxygen supply unit 110 located at the rear end of the ignition furnace unit 30 in the traveling direction of the sintered trolley 50 so that the temperature of the glowing layer is lower than 1200 ° C. Process may be included.
- the formation of the glowing layer can be uniformly formed in the height direction of the sintered raw material r.
- the ignition process is carried out by ignition in the sintering raw material (r) in the ignition furnace 30, the firing process is performed by forming a glowing layer at the starting point of the ignition in the ignition furnace 30, additionally fuel Gas can be added.
- the oxygen blowing process may be characterized in that the oxygen gas is injected in a region where the temperature is less than 1200 °C, because if the heat is not more than 1200 °C in the glowing layer is a part that does not need additional heat, less than 1200 °C
- the oxygen gas may be blown to a point to promote an oxidation reaction to provide a higher temperature of the glowing layer.
- each of the oxygen supply unit 110 is provided with a plurality in the width direction of the sintering cart 50, the temperature of the glowing layer is 1200 °C In the region less than, it can be characterized in that the supply amount and supply time of the oxygen gas is adjusted individually.
- the width direction formation of the glowing layer can be formed uniformly.
- the sintered raw material (r) is burned faster than the central end (r1) in the width direction of the sintered trolley (50) than the side end (r2), it is preferable to supply more oxygen gas to the side end (r2).
- the oxygen blowing step of the sintering method according to another embodiment of the present invention, the sintering bogie 50 side end portion prior to the sintering raw material (r) seated in the central portion (r1) of the oxygen gas sintering bogie 50 It can be characterized by blowing into the sintered raw material (r) seated on (r2).
- the formation of the glowing layer in the sintered raw material (r) seated on the side end portion (r2) of the sintered trolley (50) is made uniform in the width direction of the red layer formation of the sintered trolley (50).
- the oxygen blowing step of the sintering method according to another embodiment of the present invention, the oxygen gas on the upper glowing layer on the basis of the center of the height direction of the glowing layer formed to be inclined while the sintering raw material (r) is burned Blowing out, the more the oxygen gas is blown toward the uppermost in the height direction of the glowing layer.
- oxygen gas is supplied to the upper glowing layer in which the less glowing layer is formed, thereby inducing the forming of the glowing layer more or thicker.
- the uppermost layer of the glowing layer is formed with the thinnest layer as the starting point of ignition, by supplying the most oxygen gas at the top of the glowing layer and adjusting the amount of continuous oxygen gas supply, Uniform formation can be confirmed.
- the oxygen blowing step of the sintering method according to another embodiment of the present invention may be characterized by spraying the rate of oxygen blown into the sintering raw material (r) less than the speed of sound.
- the pressure at the nozzle member 111 for injecting the oxygen gas is increased to prevent the problem of being damaged. Will be.
- the thickness of the glowing layer formed inclined while the sintering raw material (r) is burned is less than 1.0% of the laminated thickness of the sintering raw material (r)
- the windbox may be characterized in that provided with more than 4.0% less than 10% of the total amount of gas to be sucked.
- the windbox may be characterized by being provided at 2.5% or more and less than 8.0% of the total amount of gas to be sucked.
- the thickness of the glowing layer formed inclined while the sintering raw material (r) is burned is 2.5% or more compared with the laminated thickness of the sintering raw material (r)
- the windbox may be characterized in that it is provided in less than 1.0% to less than 6.5% of the total amount of gas to be sucked.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
Abstract
Description
Claims (10)
- 소결원료를 공급하는 호퍼부와 상기 소결원료가 소결되어 배출되는 배광부 사이에 위치하며, 상기 소결원료가 안착되는 소결대차를 순환이동시키는 이송부;상기 소결대차 진행방향의 상기 호퍼부 후방에 위치하는 점화로부;상기 소결대차의 하부에 제공되어 상기 소결대차 내부의 기체를 흡인하는 윈드박스부; 및상기 소결원료가 연소되는 적열층의 온도가 1200℃ 미만인 영역에 공급되도록, 산소 기체를 독립하여 공급하며, 상기 소결대차 진행방향의 상기 점화로부 후방에 위치하는 적열층 균일조성유닛;을 포함하는 소결기.
- 제1항에 있어서,상기 적열층 균일조성유닛은,상기 소결대차 진행방향의 상기 점화로부 후단부에 위치하며, 상기 적열층의 온도가 1200℃ 미만인 영역에 상기 산소 기체를 독립하여 공급하는 산소공급부; 및상기 산소공급부와 독립하여 제공되도록, 상기 소결대차 진행방향의 상기 산소공급부 후단부에 위치하며, 연료 기체를 공급하는 연료기체공급부;를 포함하는 소결기.
- 제2항에 있어서,상기 산소공급부는, 상기 소결대차의 폭 방향으로 복수 개가 제공되거나, 상기 소결대차의 폭 방향의 양쪽 측단부에 제공되는 것을 특징으로 하는 소결기.
- 제2항에 있어서,상기 산소공급부는,상기 소결대차의 상부에 제공되는 후드부재;상기 후드부재의 내부에 제공되며, 산소배관과 연결되어 상기 소결원료의 상면에 상기 산소 기체를 분사하는 노즐부재; 및상기 산소배관에 연결되어 공급되는 산소 기체의 압력을 조정하는 버퍼부재;를 포함하는 소결기.
- 제4항에 있어서,상기 노즐부재는, 상기 소결원료의 상면에서의 높이(h)가 적어도 아래의 식을 만족하게 제공되는 것을 특징으로 하는 소결기.h = W/(2tan(0.5a))여기서, W는 상기 노즐부재가 제공되는 상기 후드부재의 단위후드 폭(W)이고, a는 상기 노즐부재에서 분사되는 상기 산소 기체의 분사각도(a)이다.
- 호퍼부에서 순환이동되는 소결대차로 소결원료를 공급하는 장입공정;상기 소결원료의 표면을 점화하는 점화공정;상기 소결대차의 하부에 제공되는 윈드박스가 상기 소결대차 내부의 기체를 흡인하며, 상기 소결원료를 연소시키는 소성공정; 및상기 소결원료가 연소되는 적열층의 온도가 1200℃ 미만인 영역에 공급되도록, 상기 소결대차 진행방향의 상기 점화로부 후단부에 위치하는 산소공급부에서 산소 기체를 독립적으로 공급하는 산소취입공정;을 포함하는 소결방법.
- 제6항에 있어서,상기 산소취입공정은, 상기 소결대차의 폭 방향으로 복수 개가 제공되는 상기 산소공급부 각각이, 상기 적열층의 온도가 1200℃ 미만인 영역에, 상기 산소 기체의 공급량과 공급시점을 개별적으로 조정하며 공급되는 것을 특징으로 하는 소결방법.
- 제7항에 있어서,상기 산소취입공정은, 산소 기체를 상기 소결대차 중앙부에 안착된 소결원료보다 먼저 상기 소결대차 측단부에 안착된 소결원료에 취입시키는 것을 특징으로 하는 소결방법.
- 제7항에 있어서,상기 산소취입공정은, 상기 소결원료가 연소되면서 경사지게 형성되는 적열층의 높이 방향의 가운데를 기준으로, 상부 적열층 상에 상기 산소 기체를 취입하며,상기 적열층의 높이 방향 최상부로 갈수록, 상기 산소 기체를 더 많이 취입하는 것을 특징으로 하는 소결방법.
- 제7항에 있어서,상기 산소취입공정은, 상기 소결원료로 취입되는 산소의 속도를 음속보다 작게 분사시키는 것을 특징으로 하는 소결방법.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR112017012466A BR112017012466A2 (pt) | 2014-12-16 | 2015-09-30 | máquina de sinterização e método de sinterização |
| JP2017529987A JP2018503046A (ja) | 2014-12-16 | 2015-09-30 | 焼結機及び焼結方法 |
| CN201580068926.7A CN107109518A (zh) | 2014-12-16 | 2015-09-30 | 烧结机和烧结方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2014-0181840 | 2014-12-16 | ||
| KR1020140181840A KR20160089552A (ko) | 2014-12-16 | 2014-12-16 | 소결기 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016099010A1 true WO2016099010A1 (ko) | 2016-06-23 |
Family
ID=56126850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2015/010309 Ceased WO2016099010A1 (ko) | 2014-12-16 | 2015-09-30 | 소결기 및 소결방법 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2018503046A (ko) |
| KR (1) | KR20160089552A (ko) |
| CN (1) | CN107109518A (ko) |
| BR (1) | BR112017012466A2 (ko) |
| WO (1) | WO2016099010A1 (ko) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959260A (zh) * | 2019-04-29 | 2019-07-02 | 山东凯莱特冶金装备有限公司 | 烧结低负压点火装置及方法 |
| CN110343853A (zh) * | 2019-08-07 | 2019-10-18 | 马鞍山钢铁股份有限公司 | 一种烧结保温装置、烧结机及其烧结方法 |
| CN113969345A (zh) * | 2020-07-23 | 2022-01-25 | 中冶长天国际工程有限责任公司 | 一种烧结机的蒸汽喷吹降温装置及其方法 |
| CN113969346A (zh) * | 2020-07-23 | 2022-01-25 | 中冶长天国际工程有限责任公司 | 一种燃气蒸汽耦合的烧结机 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102043561B1 (ko) * | 2018-06-15 | 2019-11-12 | 주식회사 포스코 | 전동기 및 이를 포함하는 소결기 |
| CN109520302B (zh) * | 2018-12-29 | 2024-08-02 | 广州薪光合环保技术有限公司 | 烧结炉 |
| CN110726306B (zh) * | 2019-10-22 | 2021-03-30 | 湖南理工学院 | 一种高利用率带式烧结机 |
| CN112410543A (zh) * | 2020-12-07 | 2021-02-26 | 许玉蕊 | 一种烧结富氧装置 |
| JP7605024B2 (ja) * | 2021-05-28 | 2024-12-24 | Jfeスチール株式会社 | 焼結鉱の製造方法 |
| JP7548185B2 (ja) * | 2021-10-12 | 2024-09-10 | Jfeスチール株式会社 | 焼結鉱の製造方法および焼結機 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120130260A (ko) * | 2010-03-24 | 2012-11-29 | 제이에프이 스틸 가부시키가이샤 | 소결광의 제조 방법 |
| JP2013057422A (ja) * | 2011-09-07 | 2013-03-28 | Jfe Steel Corp | 焼結機の酸素供給配管 |
| KR20130072877A (ko) * | 2011-12-22 | 2013-07-02 | 주식회사 포스코 | 철광석 소결 장치 |
| JP2014084502A (ja) * | 2012-10-24 | 2014-05-12 | Jfe Steel Corp | 焼結機への気体燃料供給方法と気体燃料供給装置 |
| KR101461580B1 (ko) * | 2013-12-23 | 2014-11-17 | 주식회사 포스코 | 소결광 제조 설비 및 이를 이용한 소결광 제조 방법 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51147402A (en) * | 1975-06-12 | 1976-12-17 | Mitsubishi Heavy Ind Ltd | A sintering process and sintering machine having split type firing fur nace |
| JPS62149824A (ja) * | 1985-12-23 | 1987-07-03 | Kobe Steel Ltd | 焼結機の酸素流量制御方法 |
| JPH0273924A (ja) * | 1988-09-09 | 1990-03-13 | Nippon Steel Corp | 焼結機の酸素富化操業方法 |
| JPH05195091A (ja) * | 1992-01-22 | 1993-08-03 | Sumitomo Metal Ind Ltd | 焼結鉱の製造方法 |
| JP3395505B2 (ja) * | 1996-02-26 | 2003-04-14 | 日本鋼管株式会社 | 無端移動型焼結機の操業方法 |
| JP5458560B2 (ja) * | 2008-12-03 | 2014-04-02 | Jfeスチール株式会社 | 焼結機 |
-
2014
- 2014-12-16 KR KR1020140181840A patent/KR20160089552A/ko not_active Ceased
-
2015
- 2015-09-30 BR BR112017012466A patent/BR112017012466A2/pt not_active Application Discontinuation
- 2015-09-30 CN CN201580068926.7A patent/CN107109518A/zh active Pending
- 2015-09-30 WO PCT/KR2015/010309 patent/WO2016099010A1/ko not_active Ceased
- 2015-09-30 JP JP2017529987A patent/JP2018503046A/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120130260A (ko) * | 2010-03-24 | 2012-11-29 | 제이에프이 스틸 가부시키가이샤 | 소결광의 제조 방법 |
| JP2013057422A (ja) * | 2011-09-07 | 2013-03-28 | Jfe Steel Corp | 焼結機の酸素供給配管 |
| KR20130072877A (ko) * | 2011-12-22 | 2013-07-02 | 주식회사 포스코 | 철광석 소결 장치 |
| JP2014084502A (ja) * | 2012-10-24 | 2014-05-12 | Jfe Steel Corp | 焼結機への気体燃料供給方法と気体燃料供給装置 |
| KR101461580B1 (ko) * | 2013-12-23 | 2014-11-17 | 주식회사 포스코 | 소결광 제조 설비 및 이를 이용한 소결광 제조 방법 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959260A (zh) * | 2019-04-29 | 2019-07-02 | 山东凯莱特冶金装备有限公司 | 烧结低负压点火装置及方法 |
| CN110343853A (zh) * | 2019-08-07 | 2019-10-18 | 马鞍山钢铁股份有限公司 | 一种烧结保温装置、烧结机及其烧结方法 |
| CN113969345A (zh) * | 2020-07-23 | 2022-01-25 | 中冶长天国际工程有限责任公司 | 一种烧结机的蒸汽喷吹降温装置及其方法 |
| CN113969346A (zh) * | 2020-07-23 | 2022-01-25 | 中冶长天国际工程有限责任公司 | 一种燃气蒸汽耦合的烧结机 |
| CN113969346B (zh) * | 2020-07-23 | 2023-03-24 | 中冶长天国际工程有限责任公司 | 一种燃气蒸汽耦合的烧结机 |
| CN113969345B (zh) * | 2020-07-23 | 2023-07-25 | 中冶长天国际工程有限责任公司 | 一种烧结机的蒸汽喷吹降温装置及其方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107109518A (zh) | 2017-08-29 |
| BR112017012466A2 (pt) | 2017-12-26 |
| JP2018503046A (ja) | 2018-02-01 |
| KR20160089552A (ko) | 2016-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016080650A1 (ko) | 소결장치 및 소결방법 | |
| WO2015099212A1 (ko) | 소결광 제조 설비 및 이를 이용한 소결광 제조 방법 | |
| KR20160089552A (ko) | 소결기 | |
| JP4355748B2 (ja) | 鉄鉱石ペレットの製造方法 | |
| WO2017086534A1 (ko) | 원료 처리 설비 및 이를 이용한 원료 처리 방법 | |
| WO2017061664A1 (ko) | 소결광 제조장치 및 제조방법 | |
| JP7099258B2 (ja) | Dl式焼結機およびdl式焼結機を用いた焼結鉱の製造方法 | |
| WO2018101645A1 (ko) | 통기성 측정기 및 소결 장치 | |
| WO2017159962A1 (ko) | 소결장치 및 소결방법 | |
| JPH11325740A (ja) | グレートキルン方式鉄鉱石ペレット焼成装置 | |
| WO2017078429A1 (ko) | 원료 장입 장치 및 방법 | |
| WO2018021634A1 (ko) | 소결 장치 및 이를 이용한 소결광 제조 방법 | |
| JPH05172465A (ja) | 連続焼成炉の温度制御装置 | |
| WO2019027107A1 (ko) | 소결 장치 및 이를 이용한 소결 방법 | |
| MX2010006776A (es) | Sistema y metodo para producir hierro metalico. | |
| JP7196462B2 (ja) | ドワイトロイド式焼結機を用いた焼結鉱の製造方法 | |
| KR100977792B1 (ko) | 소결기의 공기유량 조절장치 | |
| KR100897734B1 (ko) | 도자기 소성로 | |
| US2182498A (en) | Method of interoducing fuel into an open hearth furnace | |
| KR101022455B1 (ko) | 보일러 배기가스 폐열을 이용한 소결광 표층부의 온도제어장치 및 그의 온도 제어방법 | |
| CN104152678B (zh) | 一种去除铁矿石中铅锌元素的装置及其工艺 | |
| CN114990328A (zh) | 一种隧道式矿粉烧结设备及烧结方法 | |
| WO2018074783A1 (ko) | 배가스 처리장치 및 처리방법 | |
| WO2019124790A1 (ko) | 소결광 제조 장치 및 방법 | |
| KR20180047213A (ko) | 소결 장치 및 이를 이용한 소결광 제조 방법 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15870178 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2017529987 Country of ref document: JP Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112017012466 Country of ref document: BR |
|
| ENP | Entry into the national phase |
Ref document number: 112017012466 Country of ref document: BR Kind code of ref document: A2 Effective date: 20170612 |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 15870178 Country of ref document: EP Kind code of ref document: A1 |