WO2019156277A1 - Système de trempe pour laitier d'aciérie pourvu d'une buse d'injection dont la position d'injection est contrôlée - Google Patents

Système de trempe pour laitier d'aciérie pourvu d'une buse d'injection dont la position d'injection est contrôlée Download PDF

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Publication number
WO2019156277A1
WO2019156277A1 PCT/KR2018/002286 KR2018002286W WO2019156277A1 WO 2019156277 A1 WO2019156277 A1 WO 2019156277A1 KR 2018002286 W KR2018002286 W KR 2018002286W WO 2019156277 A1 WO2019156277 A1 WO 2019156277A1
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WO
WIPO (PCT)
Prior art keywords
injection nozzle
duct
port
injection
unit
Prior art date
Application number
PCT/KR2018/002286
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English (en)
Korean (ko)
Inventor
오영미
임현
손익생
Original Assignee
(주)유진에코씨엘
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Application filed by (주)유진에코씨엘 filed Critical (주)유진에코씨엘
Publication of WO2019156277A1 publication Critical patent/WO2019156277A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B5/00—Treatment of  metallurgical  slag ; Artificial stone from molten  metallurgical  slag 
    • C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/08—Cooling slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/10—Slag pots; Slag cars
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • 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
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • 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
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0068—Containers
    • 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
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0068—Containers
    • F27D2005/0075—Pots, e.g. slag pots, ladles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention relates to a system for treating molten slag, and more particularly, a process in which the horizontal distance between the falling point of the molten slag and the end of the nozzle portion is constant from the port portion that changes according to the rotation angle change of the port portion.
  • the present invention relates to a quenching system for steelmaking slag provided with an injection nozzle whose injection position is controlled to stably manufacture slag balls.
  • steel slag has limited volume stability due to low volume stability.
  • the low stability of steelmaking slag is mainly due to unreacted glass lime, and free lime or magnesium forms hydroxide when contacted with moisture and expands in volume, thus making slag balls by aging treatment.
  • the aging treatment takes a lot of time and has a problem of low utilization due to low quality reliability. Recently, a treatment method of squeezing slag with compressed air has been used.
  • the treatment method is a method in which the slag ball is produced as the molten slag is scattered in a particulate state in the process of slag scattering by spraying high pressure compressed air in the process of dropping the molten slag.
  • the slag ball produced by the treatment method is a spherical granule having a very hard surface, which has a good workability, and has an excellent physical and chemical properties such as low absorption rate and eluting heavy metals. It is used in various industries such as press block material and weight material.
  • the slag ball produced by the above treatment method can be changed in particle size according to the conditions, such as the injection angle, the injection speed and the injection pressure of the compressed air, the larger the temperature difference between the molten slag and the compressed air the finer particle size distribution ratio Higher, more productive, and less grit. Therefore, in order to maintain a high productivity while producing a slag ball having a constant productivity, it is preferable to spray compressed air under the same conditions to the molten slag falling by precisely adjusting the injection nozzle.
  • Patent Publication No. 10-1727300 hereinafter referred to as "prior art" is disclosed for a technique relating to a system for injecting compressed air toward the falling molten slag.
  • the prior art is characterized in that the slag is processed in a state in which the spraying angle is constantly adjusted while the nozzle is moved forward and backward toward the molten slag that falls. At this time, the injection nozzle of the prior art can be moved back and forth by the hydraulic cylinder.
  • the present invention has been made to solve the problems of the prior art, the problem to be solved in the present invention is a horizontal between the dropping point of the molten slag from the port portion is changed according to the rotation angle change of the port portion and the horizontal end between the end of the nozzle portion As the process is performed at a constant distance, the present invention provides a quenching system for steelmaking slag having an injection nozzle whose injection position is controlled to produce a stabilized slag ball.
  • the quenching system for steelmaking slag provided with a spray nozzle which is controlled to the injection position of the present invention for solving the above problems is a seating portion is seated in a state spaced apart a predetermined distance upward from the bottom surface receiving the molten slag;
  • a tilting device configured to rotate the port part disposed in the seating part so that the molten slag accommodated in the port part is discharged in a rotational direction;
  • An injection unit provided below the seating part to inject compressed air toward the molten slag dropped by the tilting device;
  • a distance adjusting part for moving the injection nozzle forward or rearward to adjust the position of the end of the injection nozzle, wherein the horizontal distance between the falling point of the molten slag and the end of the injection nozzle corresponds to a change in the rotation angle of the port part. It is characterized in that the slag ball is produced while being adjusted.
  • a stabilized slag ball can be manufactured as the process is performed in a state where the horizontal distance between the falling point of the molten slag and the end of the nozzle portion and the spraying angle are changed according to the rotation angle change of the port part.
  • the tilting device and the distance adjusting part are configured by using a gear method, so that a constant operating efficiency is obtained even in a high temperature environment.
  • it has the advantage of saving time and money spent on maintenance and repair.
  • FIG. 1 is a front view of a quenching system for steelmaking slag according to the present invention.
  • Figure 2 is a side view of a quenching system for steel slag according to the present invention.
  • Figure 3 is a plan view showing a coupling state of the tilting device and the port of the present invention.
  • Figure 4 is a front view showing a fastening state of the tilting device and the port portion of the present invention.
  • FIG. 5 is a perspective view showing a schematic configuration of a tilting device of the present invention.
  • 6 to 9 are views of an embodiment of the use of the tilting device applied to the present invention.
  • FIG 10 and 11 are views of an embodiment of the use of the spray nozzle applied to the present invention.
  • tilting device 210 fixed link portion
  • injection device 310 injection nozzle
  • angle adjustment unit 610 piping roller unit
  • quenching guide portion 710 quenching bottom portion
  • the present invention relates to a system for treating molten slag, and more particularly, between the dropping point of the molten slag and the end of the nozzle portion from the port portion 10 which changes according to the rotation angle change of the port portion 10.
  • the present invention relates to a quenching system for steelmaking slag equipped with a spraying nozzle which is controlled to produce a slag ball in a stable state.
  • FIG. 1 is a front view of a quenching system for steelmaking slag according to the present invention
  • FIG. 2 is a side view of a quenching system for steelmaking slag according to the present invention
  • FIG. 3 is a plan view showing a fastening state of the tilting device and the port of the present invention
  • Figure 4 is a front view showing a coupling state of the tilting device and the port of the present invention
  • Figure 5 is a perspective view showing a schematic configuration of the tilting device of the present invention
  • Figures 6 to 9 of the tilting device applied to the present invention 10 and 11 are diagrams of examples of the use of the spray nozzles according to the present invention.
  • the present invention is configured to include a seating unit 100, the tilting device 200, the injection unit 300 and the distance control unit 400.
  • the seating part 100 is configured such that the port part 10 in which the molten slag is accommodated is seated in a state spaced apart from the bottom by a predetermined distance. At this time, the lower portion of the seating portion 100 is provided with a vertical movement device 110 to allow the seating portion 100 to move in the vertical direction.
  • a pair of fixed arms 11 protrude from the outer wall of the port part 10, and the fixed arms 11 are provided to face each other in a straight line.
  • the lower surface of the port portion 10 and the seating portion 100 is formed in a form corresponding to each other, so that the port portion 10 can be stably disposed on the top of the seating portion (100).
  • the tilting device 200 rotates the port part 10 disposed in the seating part 100 so that the molten slag accommodated in the port part 10 is discharged in the rotational direction. ), The rotary link unit 220, and the port control power unit 230 is made.
  • the fixing link unit 210 is formed of a plate having a predetermined area and thickness, and is provided with a fixing hole 211 into which the fixing arm 11 is inserted at the other side in a state in which one side is fixed to the rotating shaft 240. , A pair is disposed so as to face opposite ends of the fixed arm (11).
  • the support arm is provided in the outer direction of the fixed arm 11, one end of the rotary shaft 240 is fixedly coupled to the fixed link portion 210, the other end is hinged with the support, When the rotating shaft 240 rotates, the fixed link unit 210 is rotated. In this case, the fixed link unit 210 is disposed in a state in which the fixing hole 211 faces the port unit 10 side.
  • the rotary link unit 220 is for discharging molten slag by adjusting the inclination of the port unit 10 in a state in which the port unit 10 is supported and fixed.
  • the rotary link unit 220 is formed of a fan-shaped gear. It is coupled with the rotating shaft 240.
  • the rotary link unit 220 is made of a fan-shaped plate, the circular arc of the plate is made of teeth, and as the center of the circular arc is coupled to the rotary shaft 240, the rotary link unit 220 ) Rotates correspondingly to the rotating shaft 240 in response to the rotation.
  • the fixed link unit 210 and the rotary link unit 220 are interlocked with each other, so that the fixed link unit 210 and the upper rotary link unit 220 may be linked to each other in a stable state. Between) is further provided with an interlocking support.
  • the port control power unit 230 is provided to mesh with the teeth of the rotary link unit 220, is configured to transmit the rotational force generated from the power unit to the rotary link unit 220, the power gear 231, the transmission A gear 332 and a power transmission gear 233 are included.
  • the power gear 231 is a gear directly coupled to a rotating shaft of a power device such as a motor.
  • the transmission gear 332 is a gear engaged with the power gear 231 and receives power from the power gear 231.
  • the power transmission gear 233 is provided to be engaged with the teeth of the rotary link unit 220 in a state of being coupled on the same rotation shaft as the rotation shaft of the transmission gear 332.
  • the tilting device 200 when the tilting device 200 operates the port control power unit 230 while the port unit 10 is seated, the power gear 231, the transmission gear 332 and the power Power is transmitted to the rotary link unit 220 through the transmission gear 233 so that the rotary link unit 220 rotates in one direction, and the fixed link unit 210 provided to interlock therewith also rotates at the same time. .
  • the fixed link portion 210 gradually rises upward from the lower side of the port portion 10 by rotation, the fixed arm 11 is drawn into the fixing hole 211 and the port portion 10 and The fixed link unit 210 is in a locked state, and when the fixed link unit 210 continues to rotate, the molten slag accommodated therein is discharged while the port unit 10 is inclined forward.
  • the tilting device 200 further includes a stopper 250 disposed below the port 10 in the rotational direction so as to support the lower end of the port 10 when the port 10 rotates.
  • the stopper 250 is formed to extend in the width direction of the port portion 10, the inner surface is made in the form corresponding to the outer peripheral surface of the port portion 10, the portion of the port portion 10 Both ends of the width direction in the state arranged in the front are respectively coupled to the fixed link portion (210). That is, as the stopper 250 is interlocked with the fixed link unit 210, the port unit 10 facing the front side in a state where the fixed link unit 210 and the port unit 10 are fastened. It is fastened to surround the lower part of the.
  • the stopper 250 assists the tilting operation of the port portion 10 while pushing the lower portion of the port portion 10 upward in accordance with the rotation of the fixed link portion 210, while discharging molten slag. In the process, the lower portion of the port 10 is stably supported. Thereafter, when the fastening of the fixed link unit 210 and the port unit 10 is released, the stopper 250 is also in a state separated from the port unit 10.
  • the injection unit 300 is provided in the lower portion of the seating portion 100 to inject compressed air toward the molten slag dropped by the tilting device 200, the compressed air flowing through the other end is provided at one end
  • the injection nozzle 310 is injected into the molten slag.
  • the compressed air is introduced into the injection nozzle 310 through a fixed duct 320 fixed to the bottom surface.
  • the fixed duct 320 is fixed to the bottom surface while the outlet is in communication with the injection nozzle 310.
  • the distance control unit 400 is to adjust the position of the end of the injection nozzle 310 by moving the injection nozzle 310 to the front or rear, and communicates with the fixed duct 320 receives the compressed air It is made to deliver to the injection nozzle 310, and includes a cylinder duct 410, a core duct 420 and the inner airtight portion 440.
  • the cylinder duct 410 is formed in the form of a hollow hollow tube is one end is in communication with the fixed duct (320).
  • the core duct 420 is formed in the form of a hollow tube inside the cylinder duct 410 to be inserted into or pulled out of the cylinder duct 410, and the compressed air flowing from the fixed duct 320 to the injection nozzle Forward to 310.
  • the core duct 420 is introduced into the cylinder duct 410 with one end open, and the other end protrudes to the other end side of the cylinder duct 410 with the injection nozzle 310.
  • a corrugated pipe 430 is provided between the other end of the cylinder duct 410 and the other end of the core duct 420, so that the cylinder duct 410 and the core duct 420 are sealed. Accordingly, the distance control unit 400 and the injection nozzle 310 is in the form of one extended tube.
  • the inner hermetic part 440 is made of a packing provided between the cylinder duct 410 and the core duct 420 to maintain the hermetic state inside the cylinder duct 410.
  • the inner hermetic portion 440 is made of a material having an elastic force, and is provided along the inner circumference of the cylinder duct 410, and protrudes inward from the inner circumferential surface of the cylinder duct 410.
  • the protruding end of the inner airtight part 440 is in surface contact with the outer surface of the core duct 420 to maintain the airtight inside the distance adjusting part 400.
  • the inner hermetic portion 440 is gradually thinner in the protruding direction, which is disposed in an inclined state in one direction, thereby reducing friction generated when the core duct 420 is pulled in and out, but the inner hermetic is stable. To be done.
  • the distance adjusting unit 400 may further include an adjustment roller 450 to make the intake and withdrawal of the core duct 420 more smoothly.
  • the adjusting roller 450 is provided on the inner circumferential surface of the cylinder duct 410 to assist the drawing or withdrawal of the core duct 420.
  • the adjusting roller 450 and the inner airtight part 440 It is provided in an adjacent position.
  • the adjustment roller 450 is fixed to the inner surface of the cylinder duct 410 by a bracket, wherein the inner hermetic portion 440 may be provided in a state supported by the bracket. That is, according to the above configuration, the distance adjusting unit 400 is the end position of the injection nozzle 310 is changed as the core duct 420 is introduced or removed from the cylinder duct 410.
  • the present invention further comprises a distance adjustment support part 500 to be made in a state in which the movement of the distance control unit 400 and the injection nozzle 310 is stably supported.
  • the distance adjusting support part 500 moves the injection nozzle 310 forward and backward to melt the core duct 420 falling from the end of the injection nozzle 310 as the core duct 420 is drawn in or drawn out from the cylinder duct 410.
  • it comprises an adjustment support 510, the sliding portion 520 and the distance control power unit 530.
  • the adjustment support 510 is a base plate 511 extending in the longitudinal direction, the first support is provided on the upper portion of the base plate 511 with one end disposed on one end in the longitudinal direction of the injection nozzle 310 And a second support 513 provided at an upper portion of the base plate 511 in a state in which 512 and one end are disposed at the other end side in the longitudinal direction of the injection nozzle 310.
  • the adjustment support 510 may further include a third support 514 provided on the base plate 511 with one end supporting the cylinder duct 410, and thus one extended The distance adjustment may be made in a state of more stably supporting the distance control unit 400 and the injection nozzle 310 in the form of a pipe.
  • the sliding part 520 is for guiding the withdrawal and withdrawal of the injection nozzle 310, and includes a sliding rail 521, a sliding support 522 and a sliding roller 523.
  • the sliding rail 521 extends in the longitudinal direction of the injection nozzle 310 in a state where a guide groove is formed in the center thereof, one end of which is coupled to the first support 512, and the other end of the second support 513. ) Is combined. That is, the sliding rail 521 is made of a rail connecting between the first support 512 and the second support 513, it is disposed adjacent to the outer peripheral surface of the injection nozzle (310).
  • the sliding support part 522 surrounds the sliding rail 521 and the injection nozzle 310 at the same time so that the sliding rail 521 and the injection nozzle 310 are organically connected to each other in the width direction. It is fixed with the nozzle 310. That is, the sliding support 522 is formed such that the sliding rail 521 is disposed between the sliding support 522 and the injection nozzle 310.
  • the sliding roller 523 is provided in the guide groove to be in surface contact with the inner surface of the sliding support 522. That is, the injection nozzle 310 is slidably supported in the front and rear direction by the sliding portion 520, the sliding portion 520 is sprayed in a state that is stably fixed by the adjustment support 510 The operation of the nozzle 310 is made.
  • the distance control power unit 530 is extended along the longitudinal direction of the injection nozzle 310 is made to receive power from the rack gear unit 531 and the power motor provided on one side of the outer peripheral surface of the injection nozzle (310) And a pinion gear part 532 provided to engage with the rack gear part 531. In this case, the distance control power unit 530 is to adjust the position of the injection nozzle 310 in the state provided on the base plate 511.
  • the injection nozzle 310 and the core duct 420 is moved between the injection nozzle 310 and the molten slag falling while moving forward or backward simultaneously.
  • the distance is adjusted.
  • the rack gear part 531 engaged with the pinion gear part 532 is moved forward, and the injection nozzle 310 linked thereto is moved forward by the sliding part 520. Will be moved to.
  • the core duct 420 is in communication with the injection nozzle 310, the corrugated pipe 430 provided between the core duct 420 and the cylinder duct 410 is unfolded while the core duct 420 ) Is withdrawn from the cylinder duct 410.
  • the angle adjusting unit 600 for adjusting the injection angle of the injection nozzle 310
  • the angle adjusting unit 600 is a piping roller unit 610
  • the rotation guide 620 and Rotational control power unit 630 is included.
  • the piping roller part 610 is provided between the fixing duct 320 and the distance adjusting part 400 to the hinge configuration, the piping roller part 610 is a piping body 611, piping The airtight part 612 and the hinge roller 613 are included.
  • the piping body 611 is formed in the form of a circular tube extending in the width direction in the hollow state, one side of the outer peripheral surface and the outlet of the fixing duct 320 is in communication, the other side of the outer peripheral surface and the distance adjustment
  • the inlet of the unit 400 is in communication.
  • the piping airtight portion 612 is made of a packing provided between the mutual configuration to maintain the airtight between the piping body 611 and the cylinder duct 410, the piping airtight portion 612 is a packing body ( 614, protruding support 616, and hermetic support 615.
  • One end of the packing body 614 is provided in close contact with the inner wall of the cylinder duct 410.
  • the hermetic support end 615 is coupled to the other end of the packing body 614 with a bent portion formed in the center. In this case, the hermetic support end 615 is provided while the end bent by the bent portion in contact with the piping body 611.
  • the protruding support end 616 is in an outward direction from the other end of the packing body 614 so that the end of the cylinder duct 410 is seated while the packing body 614 is coupled to the cylinder duct 410. It is provided with a protrusion.
  • the hinge roller 613 is a roller provided between the piping body 611 and the cylinder duct 410, such that the cylinder duct 410 is rotated along the outer peripheral surface of the piping body 611. In other words, the hinge roller 613 is fastened to the cylinder duct 410 by a bracket, which is provided below the piping airtight portion 612, and is in surface contact with the outer circumferential surface of the piping body 611. As provided with, to support the rotation of the cylinder duct (410).
  • the piping roller part 610 is rotated by the end of the cylinder duct 410 hinged along the outer circumferential surface of the piping body 611 in a state where the airtight is maintained by the piping airtight portion 612 Hinge rotation of the fixed duct 320 and the distance control unit 400 is possible.
  • the rotation guide 620 is for guiding the rotation of the distance control unit 400, and includes a rotation protrusion 621 and the guide bracket 622.
  • the rotary protrusion 621 is provided with a pair protruding in the width direction of the outer circumferential surface of the cylinder duct 410.
  • the guide bracket 622 is fixed to the bottom in the state provided with a guide groove 623 to guide the movement of the rotary protrusion 621 is provided on the surface.
  • the rotation control power unit 630 is for rotating the injection nozzle 310, is provided in the lower portion of the injection nozzle 310 is made to rotate the injection nozzle 310 upward or downward.
  • the rotation control power unit 630 is made of a screw jack, is fixed to the bottom surface, the end of the rotation control power unit 630 is coupled to the base plate 511 is the injection nozzle ( When the 310 is moved upward or downward, the injection angle of the injection nozzle 310 is adjusted while the distance adjusting part 400 is hinged to rotate the piping body 611 as the rotation center.
  • a quenching guide part 700 including a quenching bottom part 710, a quenching side wall 720, and an injection hole 730 is further provided below the front part of the port part 10.
  • the quenching bottom portion 710 has a predetermined area and is disposed in front of the injection nozzle 310 in a state inclined downward.
  • a pair of quenching side walls 720 are provided at both ends in the width direction of the quenching bottom portion 710, respectively, and are inclined outwardly.
  • the injection hole 730 is formed in the form of a hole formed through the surface of the quenching bottom portion 710, provided in a position corresponding to the injection nozzle 310, the compressed air discharged from the injection nozzle 310 To be sprayed forward.
  • the quenching guide portion 700 is treated with the molten slag falling, in the present invention, the compressed air discharged from the injection nozzle 310 before the molten slag is in contact with the quenching bottom portion 710. It is made to be scattered by, the quenching guide portion 700 is to guide the scattering direction of the slag ball to be scattered.
  • the injection nozzle 310 is provided to inject the compressed air toward the injection hole 730 side from the rear of the quenching bottom portion 710, that is, the quenching bottom portion 710 is the injection nozzle ( Since it is located relatively above the 310, there is an effect of protecting the injection nozzle 310 from the molten slag falling.
  • the quenching guide part 700 is changed in a state in which the quenching guide part 700 is disposed according to an angle control or a distance control of the injection nozzle 310.
  • the quenching guide part 700 has concentricity between the injection hole 730 and the injection nozzle 310 in response to the angle control and the distance control of the injection nozzle 310, and the end of the injection nozzle 310.
  • the quenching bottom portion 710 is disposed so as not to be exposed.
  • the injection position is adjusted according to the present invention.
  • the port portion 10 in which the molten sludge is accommodated is transported and seated by a conveying device such as a hoist.
  • the port part 10 is disposed so that the fixed arm 11 faces the tilting device 200 provided at both ends in the width direction of the seating part 100.
  • the tilting device 200 is engaged with the port part 10 so as to be in a slag discharge standby state.
  • the rotary link unit 220 is rotated in one direction and provided to interlock with the rotary link unit 220.
  • Fixed link portion 210 is also rotated together.
  • the port control power unit 230 is operated until the fixing hole 211 and the fixing arm 11 of the fixed link unit 210 is in a fastened state, in which case, between the fixed link unit 210
  • the stopper 250 provided in the state is fastened while being in close contact with the outer circumferential surface of the port portion 10 at the front lower portion of the port portion 10.
  • the operation of the port control power unit 230 is stopped, and the vertical movement device 110 disposed below the seating part 100.
  • the operation unit 100 is lowered. That is, the slag discharge standby state refers to a state in which the port part 10 and the fixed link part 210 are fastened, and the seating part 100 is lowered to adjust the inclination angle of the port part 10. .
  • the injection nozzle 310 and the quenching guide portion 700 is disposed so as to correspond to the injection angle and the injection position required to produce the slag ball corresponding to the predetermined design conditions, arrangement operation After this is done, injection of compressed air begins.
  • the arrangement state of the injection nozzle 310 and the quantizing guide portion 700 is adjusted so that the distance between the injection nozzle 310 and the falling molten slag corresponds to d1, Compressed air is sprayed in a state where the spray angle of the spray nozzle 310 is adjusted. Then, when the port control power unit 230 is operated again, the molten slag is dropped while the port unit 10 is rotated, and the dropped molten slag is quenched and scattered by the injection nozzle 310 to produce a slag ball.
  • the tilting device 200 used in the present invention is a device operated at a position adjacent to the molten slag in which high temperature heat is generated. Accordingly, the tilting device 200 should be configured to be operated precisely even in a high temperature environment, the conventional tilting device is composed of a hydraulic cylinder is frequently broken by high temperature bar, the addition of the cost of repairing the tilting device Many problems have arisen, including disruptions in production planning and reduced productivity. Therefore, in the present invention, the tilting device 200 is configured in a gear method so that accurate operation is performed without failure or error even in a high temperature environment, thereby preventing a failure in advance, thereby reducing the cost required for repair as well as a predetermined production. Ensure that the product is produced according to the plan.
  • the distance adjusting support part 500 which draws in or draws out the injection nozzle 310 is also configured to be operated in a gear manner so that it can be operated precisely without being influenced by temperature. That is, in the present invention, by configuring the tilting device 200 and the distance control power unit 530 in the gear system, the devices are operated with a constant operating efficiency even in a high temperature environment, and required for maintenance and repair Can save time and cost.
  • the present invention is a spraying position to stably manufacture the slag ball as the process is made in a state in which the horizontal distance between the falling point of the molten slag and the end of the nozzle portion from the port portion changed according to the rotation angle change of the port portion It may be useful to provide a quenching system for steelmaking slag equipped with a spray nozzle that is controlled.

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  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

La présente invention concerne un système de traitement de laitier fondu et, plus particulièrement, un système de trempe pour laitier d'aciérie pourvu d'une buse d'injection dont la position d'injection est ajustée, où le procédé est mis en œuvre dans une condition où une distance horizontale entre un point de chute du laitier fondu et l'extrémité de la partie buse est constante par rapport à une partie orifice qui change en fonction du changement d'angle de rotation de ladite partie orifice de façon qu'une bille de laitier stabilisée puisse être obtenue.
PCT/KR2018/002286 2018-02-12 2018-02-23 Système de trempe pour laitier d'aciérie pourvu d'une buse d'injection dont la position d'injection est contrôlée WO2019156277A1 (fr)

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KR1020180017236A KR102113387B1 (ko) 2018-02-12 2018-02-12 분사위치가 조절되는 분사노즐이 구비된 제강슬래그용 퀀칭 시스템

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CN115231316A (zh) * 2022-09-22 2022-10-25 山东大学 基于废气携废渣激冷钢渣的流态化粉料供送系统及方法
US12054795B2 (en) 2022-09-22 2024-08-06 Shandong University System and method for delivering fluidized powder based on flue gas carrying waste slag and instant cooling steel slag

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KR102163246B1 (ko) * 2020-08-04 2020-10-12 한미전기로(주) 더블틸팅 전기로의 실린더 이송장치
CN111850191A (zh) * 2020-08-25 2020-10-30 山东盛阳工程机械有限公司 一种可调式高温液态钢渣粒化装置

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KR101130176B1 (ko) * 2011-09-09 2012-03-28 김호천 래이들의 슬래그 응집 스프레이장치
KR20150084789A (ko) * 2012-09-13 2015-07-22 다니엘리 앤드 씨. 오피시네 메카니케 쏘시에떼 퍼 아찌오니 금속 슬래그를 가공하는 방법 및 기기
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* Cited by examiner, † Cited by third party
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CN115231316A (zh) * 2022-09-22 2022-10-25 山东大学 基于废气携废渣激冷钢渣的流态化粉料供送系统及方法
US12054795B2 (en) 2022-09-22 2024-08-06 Shandong University System and method for delivering fluidized powder based on flue gas carrying waste slag and instant cooling steel slag

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