KR20140140343A - Distribution apparatus and material processing apparatus having the same - Google Patents

Distribution apparatus and material processing apparatus having the same Download PDF

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Publication number
KR20140140343A
KR20140140343A KR1020130061066A KR20130061066A KR20140140343A KR 20140140343 A KR20140140343 A KR 20140140343A KR 1020130061066 A KR1020130061066 A KR 1020130061066A KR 20130061066 A KR20130061066 A KR 20130061066A KR 20140140343 A KR20140140343 A KR 20140140343A
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KR
South Korea
Prior art keywords
raw material
charging chute
frame
frames
power unit
Prior art date
Application number
KR1020130061066A
Other languages
Korean (ko)
Inventor
구남형
강현진
문성기
손기완
Original Assignee
주식회사 포스코
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Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020130061066A priority Critical patent/KR20140140343A/en
Publication of KR20140140343A publication Critical patent/KR20140140343A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G11/00—Chutes
    • B65G11/12—Chutes pivotable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G11/00—Chutes
    • B65G11/14—Chutes extensible, e.g. telescopic
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge
    • 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
    • F27D2003/0001—Positioning the charge
    • F27D2003/0002—Positioning the charge involving positioning devices, e.g. buffers, buffer zones

Abstract

The present invention relates to a raw material supply apparatus and a raw material treatment apparatus having the same, and more particularly, to a charging apparatus including a charging chute including a plurality of frames at least partially overlapping in a direction in which a raw material moves, A power unit provided in the charging chute and adjusting the length of the charging chute by adjusting the degree of overlap of the frames and an induction plate spaced apart from an end of the charging chute so that the operator can charge the raw material to a desired position .

Description

[0001] 1. Field of the Invention [0002] The present invention relates to a raw material supply apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a raw material supply apparatus and a raw material processing apparatus having the same, and more particularly, to a raw material supply apparatus capable of distributing a raw material at a desired position and a raw material processing apparatus having the same.

The steelmaking process involves the production of molten iron in steelmaking. In such a steelmaking process, a blast furnace is used, which is a container for processing raw materials for melting iron ore to produce molten iron. In the blast furnace, iron ore and coke are sequentially charged and stacked, and hot air is blown from the lower tuyeres to burn the coke, and the iron ore is melted and reduced by the heat and carbon generated at this time, . At this time, in order to economically and efficiently operate the blast furnace, it is important to uniformly distribute the raw materials in the blast furnace.

1 shows a conventional apparatus for supplying a raw material such as iron ore or coke to a blast furnace 10. On the upper side of the blast furnace 10, a charging chute 60 and a driver 50 for driving the charging chute 60 are provided. Thus, the raw materials supplied from the outside can be charged into the blast furnace 10.

The charging chute 60 extends along the moving direction of the raw material while forming a path through which the raw material moves on the upper surface. One end of the charging chute 60 is fixed to the driving portion 50 and communicates with the communication pipe 31 of the hopper 30 to drop the raw material supplied from the hopper 30 at the other end. The driving unit 50 may adjust the inclined angle of the charging chute 60 or adjust the position of the raw material falling down inside the blast furnace by pivoting.

However, when the conventional charging chute 60 is used, the following problems may occur. First, due to the difference in specific gravity between the coke and the iron ore (approximately four times), the drop energy of the two raw materials is different and a difference occurs at the point where the coke and the iron ore are seated when they are charged into the blast furnace. Since the coke and iron ore that are introduced into the raw material can not always be of a certain size or constant component, there may be a difference in falling energy depending on the particle size change or property, and the distribution of the charge may vary accordingly. In other words, there is a limit in that the operator is required to put the charge in the precise position desired by simply adjusting the inclined angle or turning motion with the conventional charging suit.

In addition, since the charging chute is inclined toward the furnace wall of the blast furnace, the raw materials can be charged into the blast furnace through the charging chute and collide with the furnace wall of the blast furnace. Thus, the inner wall of the blast furnace may be damaged.

Korean Bulletin 10-1159738 Korean Bulletin 10-1175465

The present invention provides a raw material supply apparatus capable of controlling the distribution of raw materials and a raw material processing apparatus having the same.

The present invention provides a raw material supply apparatus and a raw material supply apparatus including the raw material supply apparatus that can prevent damage to equipment and improve life span.

A raw material supply device according to an embodiment of the present invention includes a charging chute including a plurality of frames forming a path through which a raw material moves on an upper surface and at least a part of which is superimposed in a direction in which the raw material moves, And a power unit for adjusting the length of the charging chute by adjusting the degree of overlap of the frames.

At least one of a guide hole and a projection is formed in the plurality of frames, and the guide hole is formed along at least a part of the side wall of the frame along the longitudinal direction, and the projection is inserted into the guide hole.

The power unit includes a power unit provided in a frame located at one end of the charging chute and providing a rotational force, a motion converting member provided at a frame located at the other end of the charging chute, and one end fixed to the frame located at the one end, Includes a power transmitting member connected to the power unit through the motion converting member.

The power unit includes a hydraulic pump or an air pump provided in a frame disposed at one end of the charging chute and providing power for moving the charging chute in the up and down direction and one end is fixed to the other end of the charging chute, A hydraulic cylinder or an air cylinder.

Wherein the charging chute is provided with an induction plate which is disposed apart from an end of a frame through which the raw material is discharged.

The surface of the induction plate which is in contact with the raw material is coated with a cemented carbide layer, or a carbide liner is attached.

A raw material supply apparatus according to an embodiment of the present invention includes a container for processing a raw material, a first end disposed at a central portion of the upper portion of the container, a first end extending from the first end toward the inner wall of the container, And the length thereof can be adjusted in the extending direction.

The charging chute is arranged to be inclined downward along the moving direction of the raw material.

The longest length of the charging chute may be equal to or smaller than an entrance radius of the container in which the charging chute is installed.

Wherein the charging chute is provided with an induction plate which is disposed apart from an end portion from which the raw material is discharged.

The raw material supply apparatus and the raw material processing apparatus having the raw material supply apparatus according to the embodiment of the present invention can freely distribute the raw material at a desired position by the operator and efficiently process the raw material. That is, the worker can drop the raw material to a desired position by adjusting the length of the charging chute used as the conveying path of the raw material.

In addition, the lower end of the charging chute is provided with an induction plate in a direction perpendicular to the direction in which the materials are moved, so that the charge falling on the falling trajectory of the parabola can collide with the induction plate and fall vertically. Thus, it is possible to reduce the variables (specific gravity, size, size change, property change, and the like) that can change the seated point of the raw material charged into the blast furnace, so that the operator can accurately predict the drop position of the charge. In addition, damage to the blast furnace can be prevented by preventing the raw material from colliding with the furnace wall of the blast furnace through the induction plate.

Therefore, the operator can uniformly distribute the raw material charged in the blast furnace to a desired position in the blast furnace, for example, and stabilize the sulfur content through the charge distribution control. Thus, the efficiency and productivity of the blast furnace process can be increased.

1 is a schematic view showing a raw material processing apparatus.
2 is a view showing a raw material processing apparatus according to an embodiment of the present invention.
3 is a perspective view showing a charging suit according to the present invention.
4 is a side view of a charging suit according to an embodiment of the present invention;
5 is a view showing a use state of a charging suit according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. To illustrate the invention in detail, the drawings may be exaggerated and the same reference numbers refer to the same elements in the figures.

Although the embodiment of the present invention is described by way of example of a blast furnace, the scope of application is not limited to this, and the present invention can be applied to a container for treating various raw materials, and can also be applied to a place for loading raw materials.

3 is a perspective view showing a charging chute according to the present invention, FIG. 4 is a side view of a charging chute according to an embodiment of the present invention, and FIG. 5 Is a view showing the use state of the charging suit according to the embodiment of the present invention.

The raw material processing apparatus according to the embodiment of FIG. 2 includes a container 10 for processing raw materials, and a raw material supply device 100 disposed on the top of the container and distributing the raw material into the container. Further, the raw material processing apparatus may include a supplying section connected to the raw material supplying apparatus.

The container 10 forms an inner space capable of treating the raw material. The container 10 may be a blast furnace 10, and may be formed in a cylindrical shape. Of course, other than the blast furnace 10, it may be a variety of containers and may have various shapes. At least a part of the upper side of the blast furnace 10 is open so that the raw material can be input. On the lower side, a tuyere for supplying hot air into the blast furnace and a passage for discharging the molten iron in the blast furnace to the outside can be formed. Iron ore, coke, etc. may be charged as raw materials.

The supply part is for supplying various raw materials from the outside and may include a conveyor belt 40, a bunker 20, a hopper 30 and a driving part 50. The conveyor belt 40 is connected to the upper portion of the bunker 20 and serves to transport the external raw material M to the blast furnace 10. The bunker 20 is disposed on the upper portion of the blast furnace 10 and is connected to the conveyor belt 40 to temporarily store the raw material. The hopper 30 is disposed under the bunker 20 and may serve to feed the raw material supplied from the bunker 20 to the raw material supply apparatus 100. The hopper 30 has a communicating tube 31 at a lower portion thereof and communicates with the raw material supplying device 100 described later. The driving part 50 is formed in the shape of a tube of a cylindrical tube so that the inner surface of the upper part can be fitted to the outside of the communicating tube 31 and the raw material supplying device 100 can be connected to the outer surface of the lower part. However, the shape and position of the driving unit 50 are not limited to these, and can be variously modified. The driving unit 50 can downwardly tilt the material supply device 100 and adjust or tilt the tilt angle. On the other hand, the configuration of the supply unit is not limited to the above, and can be variously modified.

The raw material supply device 100 may be disposed at the center of the upper part of the blast furnace 10. That is, the center of the blast furnace 10 is a position where the raw material supply device 100 can rotate and the raw material can be uniformly distributed in the cylindrical blast furnace 10. However, depending on the shape of the container such as the blast furnace, the position of the material supply device 100 may be changed. The raw material supply device 100 includes a charging chute 110 including a plurality of frames which form a path through which a raw material moves on the upper surface and at least a part of which is superimposed in a moving direction of the raw material, And a power unit 130 that adjusts the length of the charging chute 110 by adjusting the degree of overlapping of the frames. The material supply apparatus 100 may include a guide 120 formed in the charging chute 110 and an induction plate 150 provided at the end of the charging chute 110.

The charging chute 110 includes a plurality of frames. Although the charging chute 110 may include at least two frames, the charging chute 110 may include six frames, for example, a first frame 111, a second frame 112, a third frame 113, a fourth frame 114, a fifth frame 115, and a fixed frame 116 will be described. Each frame includes a main body formed of iron, a reinforcing material provided on the upper surface of the main body to protect the main body from the raw material falling from the communicating tube 31 of the hopper 30, It can be made of refractory that protects. The frames may have a U-shaped tube shape to form a moving path of the raw material, but may have various shapes without limitation.

One end of the charging chute 110 is connected to the communicating pipe 31 of the supply part, and the other end is disposed on the inner wall side of the blast furnace. Since the other end of the charging chute 110 can be inclined downward by the driving unit 50, the raw material moves along the upper surface of the charging chute 110 and can be charged into the blast furnace 10 through the other end have. A first frame 111 which is overlapped or connected to an outer surface or an inner surface of the fixed frame 116 so as to communicate with the communicating pipe of the hopper 30, a fixed frame 116 fixedly installed on the outer surface of the driving unit 50 of the supplying unit, A second frame 112 having one side overlapped with the other side of the other side of the first frame 111, a third frame 113 having one side overlapped with the other side of the other side of the second frame 112, The fourth frame 114 may be overlapped on the other side of the fourth frame 114 and the fifth frame 115 may be formed on the other side of the fourth frame 114. That is, at least a part of the first frame to the fifth frame are connected to each other along the moving direction of the raw material. That is, a lower frame or a smaller frame is provided so as to at least partially overlap the upper frame or the upper face of the larger frame. When the hopper 30 supplies the raw material to the first frame 111 through the communicating pipe 31, the raw material is discharged to the end of the fifth frame 115 via the frames 112, 113 and 114. In other words, the first frame 111 can be the inlet of the raw material, and the fifth frame 115 can be the outlet of the raw material. The first frame to the fifth frame may be formed to be inclined downward along the moving direction of the raw material. That is, the driving unit 50 is connected to the fixing member 118 of the fixed frame 116, so that the charging chute 110 can be inclined downward to adjust the inclined angle. At this time, each frame may be formed to have the same size so as to overlap with each other, or may be formed so as to have a reduced width. Alternatively, they may be formed and overlapped with increasing width. Above each frame, a support 117 is provided to prevent the frame from spreading.

The first frame 111 may be formed by opening at least a portion of the upper portion of the first frame 111. The upper portions of the first frames 111 may be opened at the upper portion of the first frames 111, To close the upper part.

The frames of the charging chute 110 can be adjusted in length by adjusting the degree of overlapping while sliding the frames. For example, the second frame 112 disposed on the first frame 111 slides on the first frame 111 along the moving direction of the raw material or the longitudinal direction of the frame, The length of the path through which the robot moves can be adjusted. That is, the longest distance of the charging chute 110 is a length in which all of the frames are unfolded, and the shortest distance is a distance in which the frames are all overlapped. At this time, the longest length of the charging chute 110 may be equal to or smaller than the entrance radius of the container having the charging chute x 2. Therefore, the charging chute may not collide with the furnace wall of the blast furnace while distributing the raw material to the blast furnace.

The guide part 120 may be provided on both sides of the frames to prevent the frames from slipping off while being slid while the guide part 120 includes guide holes 121 and protrusions 122 formed on both sides of the frames . At this time, the first frame 111 and the fifth frame 115 of the frames may be formed with one of the guide hole 121 and the protrusion 122. Guide holes 121 and protrusions 122 are provided in the second frame to the fourth frame. That is, when the guide hole 121 is provided on one side, the protrusion 122 is provided on the other side, and when the protrusion 122 is provided on one side, the guide hole 121 is provided on the other side.

The guide holes 121 may be formed along the longitudinal direction of the frame, that is, along the moving direction of the raw material, on at least a part of both sides of each of the frames. The protrusions 122 are formed on one side surface of each of the frames, and are inserted through the guide holes 121 formed in the adjacent frames.

The projection 122 includes a projection head 122a and a projection shaft 122b. The projection shaft 122b is fixed to the upper end of the frame. The projection shaft 122a is connected to the projection head 122a passing through the guide hole 121 formed in the frame overlapping the outer surface of the frame and having a circumference greater than the width of the guide hole 121. [ Thus, the frame positioned in the direction of the exit of the raw material and the frame positioned in the direction of feeding the raw material, which are overlapped with each other, can be connected to each other. That is, the protrusion 122 of the frame positioned in the direction of the outlet of the raw material can move in the guide hole 121 of the frame positioned in the direction of feeding the raw material. Therefore, the frame in which the projections are fixed can slide in the frame provided with the guide holes by the distance that the projections move through the guide holes.

Although a specific embodiment has been described above with respect to the guide unit 120, the shape and position of the guide unit and the method of moving the frames of the charge chute 110 are not limited thereto and can be variously changed.

The charging chute 110 is provided with an induction plate arranged to be spaced apart from an end where the raw material is discharged. That is, the charging chute 110 may include an induction plate 150 spaced apart from the end of the fifth frame 115 from which the raw material is discharged. The induction plate 150 may be formed in a shape similar to the cross-sectional shape of the frame, and may be installed to be spaced apart from the rear end of the fifth frame 115 in the direction perpendicular to the moving direction of the raw material. The guide plate 150 may be made of stainless steel. At this time, since the rear surface is a portion where the material collides with the raw material, a cemented carbide layer having excellent abrasion resistance may be coated or a carbide liner may be attached. However, there is no limitation on the shape and the shape, and the material is not limited, and a variety of materials excellent in wear resistance can be used.

If the distance D between the guide plate 150 and the fifth frame 115 is too close to the distance between the guide plate 150 and the fifth frame 115, If the distance between the guide plate 150 and the fifth frame 115 is too great, the materials M are charged into the blast furnace 10 without colliding with the guide plate 150, Problems can arise. Therefore, in order to solve the above problem, the distance between the guide plate 150 and the fifth frame 115 may be 10 to 20 cm. The separation distance between the guide plate 150 and the fifth frame 115 may vary depending on the size of the container for processing the raw material or the length of the charging chute, and the separation distance is kept larger than the raw material size so that the raw material can pass smoothly.

The induction plate 150 can control the direction in which the materials to be charged are introduced. When the induction plate is not provided, the raw materials ejected from the ends of the charging chute are charged into the furnace when the parabola is drawn. However, if the induction plate is provided, the materials ejected from the charging chute end collide with the induction plate 150, and can be vertically dropped downward. And the raw materials distributed into the blast furnace 10 through the charging chute 110 are prevented from colliding with the furnace wall, thereby preventing the blast furnace 10 from being damaged.

The power unit 130 may be provided in the frame and includes a power unit 131 and a wire fixing unit 132 provided in the fixed frame 116, a motion converting member 134 provided in the fifth frame 115, And the other end may be connected to the wire fixing device 132 and may include a wire 133 wound around the motion converting member 134. [

As the power unit 131, a motor that provides a rotational force may be used. However, the present invention is not limited to this, and a wire drum for winding or unwinding the wire 133 may be used. As the motion converting member 134, a roller may be used. Thus, the roller can change the rotational motion transmitted by the power unit into linear motion, so that the frames move up and down. However, various members such as projections may be used as the motion converting member 134 in addition to the roller.

The wire 133 is a power transmitting member for transmitting the power generated by the power generator 131, that is, the rotational force, to the motion converting member 134. One end of the wire 133 is fixed to the wire fixing device 132, And the other end is connected to the power unit 131. [ Therefore, when the power generator 131 is operated, the wire 133 is wound or unwound, and the power of the power generator 131 is transmitted to the motion converting member 134. Thus, the fifth frame 115, to which the motion converting member 134 is fixed, can be moved by moving the motion converting member 134. However, in addition to the wire, a belt, a chain, or the like can be used as a method of transmitting the power of the power generator. In addition, the rollers 135 may be provided in the second frame, the third frame, and the fourth frame so that the wire 133 can be stably moved.

The raw material supply device can operate as follows. For example, when iron ores having a large specific gravity are charged into the blast furnace, the traveling distance of the iron ores from the charging chute is increased and the traveling distance is increased compared to the coke. Therefore, it is necessary to reduce the length of the charging chute 110. 5 (b), when the wire 133 connected to the power unit 131 is wound, the motion converting member 134 of the fifth frame 115 connected to the wire 133 is moved in the direction of the It can be moved upward. The fifth frame 115 moves along the motion converting member 134 toward the fourth frame 114 which is the upper portion of the charging chute 100. Then, the fifth frame 115 is overlapped with the fourth frame 114 to reduce the length of the charging chute 110 having five stages from four stages. The motion converting member 134 of the fifth frame 115 connected to the wire 133 is moved in the upper direction of the charging chute 110 when the power unit 131 is further wound. Accordingly, the fifth frame 115, whose movement distance is limited by the guide unit 120, moves the two frames 114 and 115 toward the third frame 113 while pushing the fourth frame 114 located at the upper position do. Then, the fourth frame 114 in which the fifth frame 115 is superimposed is overlapped with the third frame 113 to reduce the length of the charging chute 110 having three stages. That is, as the driver tightly winds the wire, the overall length of the charging chute 110 is reduced. At this time, since the guide part 120 provided between the frame located above the charging chute 110 and the frame located below the charging chute 110 limits the moving distance of the frame located under the charging chute 110 , It is possible to prevent the frame located below the charging chute 110 from being separated or separated from the inside of the frame located above the charging chute 110.

Conversely, when the coke having a small specific gravity is charged into the blast furnace, it is necessary to increase the length of the charging chute 100 because the moving distance of the coke decreases from that of the iron ore because the coke discharges from the charging chute is slow. 5 (a), when the wire 133 is loosened, the load of the frames of the charging chute 110 is larger than the force of the wire 133 pulling the motion converting member 134 So that the frames of the charging chute 110 can be moved slowly in the lower direction of the charging chute 110. At this time, since the charging chute 110 is inclined downward toward the blast furnace 10, the load of the charging chute 110 frames can be applied in the direction opposite to the direction of the force transmitted by the power generator 131 through the wire 133 have.

The motion converting member 134 of the fifth frame 115 connected to the wire 133 is moved in the lower direction of the charging chute 110 due to the load of the frame when the motive power 131 further loosens the wire 133 . Therefore, the fifth frame 115, whose movement distance is restricted by the guide portion 120, pulls the fourth frame 114 located above the charging chute 110. Then, the fourth frame 114 pulled by the fifth frame 115 is superimposed inside the third frame 113, and then moves in the lower direction of the loading chute 110. Thus, the length of the charging chute 110, which was the second stage, increases in three stages. That is, as the power generator 131 releases the wire 133, the total length of the charging chute 110 becomes longer.

The guide unit 120 provided between the frame located above the charging chute 110 and the frame located below the charging chute 110 limits the moving distance of the frame located below the charging chute 110, Therefore, it is possible to prevent the frame located below the charging chute 110 and the frame located above the charging chute 110 from being separated. Thus, in addition to adjusting the angle of downward inclination of the charging chute 110 or performing the swinging motion, the operator can adjust the length of the charging chute 110 and accurately distribute the materials at desired positions.

On the other hand, the power section of the raw material supply apparatus 100 may have another modification. That is, a hydraulic pump (not shown) is provided in place of the power unit, and a hydraulic cylinder (not shown) may be used as the power transmitting member.

The hydraulic pump may be provided outside the frame at one end. At this time, one side of the hydraulic cylinder is fixed to the frame at the other end, that is, the fifth frame 115, and the other side can be connected to the hydraulic pump. At this time, a plurality of hydraulic cylinders may be provided by the number of frames of the charging chute 110. In other words. To move the respective frames, a hydraulic cylinder may be provided in each frame.

The operation of the modified example is as follows. When the hydraulic pump supplies the hydraulic pressure to the hydraulic cylinder, the hydraulic cylinder may have a longer length due to the hydraulic pressure. Then, the fifth frame 115 to which the hydraulic cylinder is fixed is moved as long as the hydraulic cylinder is long. The fifth frame 115 pulls the other frames located above the charging chute 110 in the lower direction of the charging chute 110 through the guide 120 so that the length of the charging chute 110 becomes longer have.

On the contrary, if the hydraulic pump pulls out the hydraulic pressure in the hydraulic cylinder, the length of the hydraulic cylinder is reduced. Then, the fifth frame 115, to which the hydraulic cylinder is fixed, moves as the length of the hydraulic cylinder decreases. The fifth frame 115 moves the other frames located above the charging chute 110 to the upper portion of the charging chute 110 through the guide portion 120 so that the length of the charging chute can be shortened.

In the modified example, the length of the charging chute is adjusted by using the hydraulic pump and the hydraulic cylinder, but the length of the charging chute can be adjusted by various methods such as an air pump or an air cylinder.

Thus, by controlling the length of the charging chute and vertically dropping the materials to be charged into the blast furnace, the operator can control the distribution of charge in the blast furnace irrespective of the particle size change of the charging object or the kind of the charging object. Thus, the efficiency and productivity of the blast furnace process can be increased. In addition, it is possible to prevent the material to be charged from colliding with the furnace wall of the blast furnace, thereby preventing damage to the blast furnace.

Although the present invention has been described in detail with reference to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be defined by the appended claims, as well as the appended claims.

10: Blast Furnace 20: Bunker
30: hopper 40: container belt
100: raw material supply device 130:
120: guide part 140: guide plate

Claims (10)

A charging chute comprising a plurality of frames forming a path through which a raw material moves on an upper surface and at least a part of which is superimposed in a direction in which the raw material moves; And
And a power unit provided in the charging chute and adjusting a length of the charging chute by adjusting a degree of overlap of the frames. The method according to claim 1,
Wherein at least one of a guide hole and a projection is formed in the plurality of frames, and the guide hole is formed along at least a part of a side wall of the frame in a longitudinal direction, and the projection is inserted into the guide hole. The method according to claim 1,
The power unit includes a power unit provided in a frame positioned at one end of the charging chute to provide a rotational force
A motion converting member provided in a frame located at the other end of the charging chute; And
And a power transmitting member, one end of which is fixed to the frame located at the one end, and the other end is connected to the power unit via the motion converting member. The method according to claim 1,
The power unit includes a hydraulic pump or an air pump provided in a frame positioned at one end of the charging chute and providing power to move up and down
A hydraulic cylinder or an air cylinder having one side fixed to the other end of the charging chute and the other side connected to the hydraulic pump. The method according to any one of claims 1 to 4,
Wherein the charging chute comprises an induction plate which is disposed apart from an end of a frame through which the raw material is discharged. The method of claim 5,
Wherein the guide plate is coated with a cemented carbide layer on a surface of the guide plate which collides with the raw material, or the carbide liner is attached. A container for treating the raw material;
And a raw material supply device including a raw material supply device disposed at a central portion of the upper portion of the container and extending from the one end toward the inner wall of the container to form a path for moving the raw material, . The method of claim 7,
Wherein the charging chute is disposed so as to be inclined downward along the moving direction of the raw material. The method of claim 7,
Wherein the longest length of the charging chute is equal to or smaller than an entrance radius of the container in which the charging chute is installed. The method of claim 7,
Wherein the charging chute comprises an induction plate which is disposed apart from an end where the raw material is discharged.
KR1020130061066A 2013-05-29 2013-05-29 Distribution apparatus and material processing apparatus having the same KR20140140343A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110317914A (en) * 2019-07-25 2019-10-11 德龙钢铁有限公司 Blast-furnace top distributing device for steel scrap fixed point charging
KR20220099277A (en) * 2021-01-06 2022-07-13 두텍 주식회사 The chute end tensioning device with alternating function for pendulum type telescopic chute

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110317914A (en) * 2019-07-25 2019-10-11 德龙钢铁有限公司 Blast-furnace top distributing device for steel scrap fixed point charging
KR20220099277A (en) * 2021-01-06 2022-07-13 두텍 주식회사 The chute end tensioning device with alternating function for pendulum type telescopic chute

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