KR102103385B1 - Charging apparatus and charging method - Google Patents

Abstract

The present invention, the raw material can be accommodated inside, a hopper having an opening formed on one side; And a gate portion installed on one side of the hopper to open and close the opening, wherein the gate portion includes a charging device having a rotating body so as to detach an attachment attached to an outer surface of the gate portion, and a charging method using the same. A charging device and a charging method that can suppress or prevent the occurrence of deposits are presented.

Description

Charging device and charging method {CHARGING APPARATUS AND CHARGING METHOD}

The present invention relates to a charging device and a charging method, and more particularly, to a charging device and a charging method capable of suppressing or preventing the occurrence of deposits on the hopper gate.

The sintered ore is a blast furnace charge manufactured to a size suitable for use in a blast furnace using iron ore, limestone, powder coke, and anthracite as a blending raw material. The process of manufacturing the sintered ore is largely divided, and includes the process of assembling the blended raw materials (hereinafter referred to as 'raw materials') and sintering the raw materials into the sintered ore. Among them, the sintering process is usually performed in a Dwight Lloyd type sintering machine (referred to as a 'sintering facility').

The sintering equipment advances the sintering cart in the order of the charging section, the ignition section, the sintering section and the cooling section. Forced suction of air from the bottom to the bottom moves the combustion zone to the bottom of the raw material layer, sinters the raw material layer to form a sintered cake, distributes the sintered cake, and cools and crushes to prepare a sintered ore.

The breathability of the raw material layer is an important factor directly related to the productivity and quality of the sintered ore. Therefore, when loading the raw material into the sintered bogie, the particle size segregation and component segregation are controlled in the thickness direction and the width direction of the raw material layer.

Segregation in the thickness direction (also called 'height direction' or 'vertical direction') is controlled by using a charging chute provided between the raw material hopper and the sintered bogie. In addition, segregation in the width direction (also referred to as 'left and right direction' or 'horizontal direction') is controlled by using a split-type hopper gate provided between the raw material hopper and the charging chute.

In order to control the segregation in the width direction smoothly, no attachment should be generated on the hopper gate. However, during the discharge of the raw material, deposits are generated on the hopper gate by the cementation reaction of the moisture and quicklime components contained in the raw material. Since the deposit irregularly fluctuates the opening degree of the hopper gate, when the deposit is generated, the raw material cannot be discharged as desired.

The technology underlying the present invention is published in the following patent documents.

KR 10-2017-0019516 A KR 10-2017-0011807 A

The present invention provides a charging device and method that can suppress or prevent the occurrence of deposits on the hopper gate.

The present invention provides a charging device and method that can suppress or prevent irregular fluctuations in the amount of raw materials.

The charging device according to the embodiment of the present invention includes: a hopper in which a raw material can be accommodated and an opening is formed on one side; And a gate portion installed on one side of the hopper to open and close the opening, and the gate portion includes a rotating body so that attachments attached to the outer surface of the gate portion can be removed.

The rotating body includes at least one of a belt and a roller, and the belt or the roller may form an outer surface of the rotating body.

The roller includes a driving roller and a supporting roller, and the belt is wound around the driving roller and the supporting roller to be fastened in an open belt manner to form an outer surface of the rotating body.

The driving roller and the support roller may be disposed in front of the opening.

The drive roller and the support roller are arranged in the vertical direction, and the drive roller may be disposed above the support roller so as to be protected from collision with the raw material.

The support roller includes a first support roller and a second support roller, the drive roller and the first support roller are arranged in the vertical direction, and the second support roller is between the drive roller and the first support roller. It can be arranged spaced forward from.

The gate portion, a support frame disposed in front of the opening so that the drive roller and the support roller can be mounted; It is disposed at a height higher than the opening, and connected to the support frame, the elevator for lifting the support frame; may further include.

The gate unit may include a cleaner that directly or indirectly contacts the belt in front of the opening; A driver mounted on the support frame, connected to the drive roller, and providing rotational force to the drive roller; It may further include a controller for adjusting the magnitude and direction of the rotational force that the driver transmits to the drive roller.

A plurality of the gate portions may be provided and may be arranged in left and right directions.

The rotating body may include a material having a contact angle with respect to secondary distilled water of 100 degrees or less.

The rotating body may include at least one of natural rubber, synthetic rubber, and polyurethane.

The raw material includes a blended raw material for sintered ore production, and a sintered bogie of a sintering facility may be disposed below the hopper.

A charging method according to an embodiment of the present invention includes a method of charging a raw material to a bogie running along a processing path, the method comprising: providing the raw material in a hopper disposed above the bogie; Opening the opening using a gate installed in front of the opening of the hopper; It includes; during the cutting of the raw material through the opening, using the rotating body provided in the gate portion to detach the attachment to the gate portion.

The rotating body includes a belt forming an outer surface of the gate portion and a roller rotating the belt, and the process of removing the attachment includes: rotating the belt to move the attachment; It may include the process of impacting the attachment to the inner wall of the opening or changing the contact surface angle of the belt and the attachment.

The process of removing the attachment may further include a process of cleaning the surface of the belt using a cleaner installed toward the belt.

The process of moving the attachment, the process of rotating the belt in one direction; While rotating the belt in one direction, the process of periodically rotating the belt in the other direction; may include.

A plurality of the gate portions are arranged in the left-right direction, and while cutting the raw material through the opening, the height of the gate portions is individually adjusted or the rotational speed of the belts provided in the gate portions are adjusted differently. The cutting amount can be adjusted in the same direction or differently in the left-right direction.

According to the embodiment of the present invention, by providing the hopper gate in the form of an open belt, it is possible to suppress or prevent the occurrence of deposits on the belt while rotating the belt while maintaining the opening degree of the hopper gate. In addition, even if the attachment is temporarily attached to the belt, the attachment can be rubbed against the hopper or cleaner to immediately drop off.

Therefore, the opening degree of the hopper gate can be suppressed or prevented from being irregularly fluctuated by the attachment. Accordingly, since it is possible to suppress or prevent irregular fluctuations in the amount of raw material, productivity of a treatment facility to which a raw material charging device is applied, such as a sintering facility, can be improved.

1 is a schematic diagram of a treatment facility and a charging device according to an embodiment of the present invention.
2 is a partially enlarged view of a charging device according to an embodiment of the present invention.
3 is an enlarged view of a gate unit according to an embodiment of the present invention.
4 is an operation diagram of a charging device according to an embodiment and a comparative example of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and will be implemented in various different forms. Only the embodiments of the present invention are provided to make the disclosure of the present invention complete, and to fully inform the scope of the invention to those skilled in the art. The drawings may be exaggerated to describe embodiments of the present invention, and the same reference numerals in the drawings refer to the same elements.

1 is a schematic diagram of a treatment facility and a charging device according to an embodiment of the present invention.

In order to help understanding of the embodiments of the present invention, a processing facility will be briefly described.

1, the treatment facility according to an embodiment of the present invention may be a sintering facility (1).

The sintering equipment 1 is installed so as to be able to process the raw material M while traveling in the traveling path of the treatment path, and charging is disposed on the upper side of the sintering vehicle 60 upstream of the treatment path. The apparatus 1000 may include an ignition furnace 70 disposed above the sintered bogie 60, downstream of the processing path than the charging apparatus 1000.

Upstream of the processing path means the region where the raw material M passes relatively first, and downstream of the processing path means the region where the raw material M passes relatively later.

The treatment path extends in the front-rear direction and includes a charging section, an ignition section, a sintering section, and a light distribution section. The sintered bogie 60 may travel in the order of the charging section, the ignition section, the sintering section and the light distribution section.

The sintered bogie 60 may receive the raw material M in the charging section to form a raw material layer therein. In the raw material layer, a flame may be ignited on the surface by the ignition furnace 70 in the ignition section. The raw material layer is sintered while passing through the sintering section, and may be distributed in the form of a sintered cake from the sintering truck 60 in the light distribution section. A return path is formed below the processing path, and the sintered bogie 60 may pass through the return path and return from the light distribution section to the charging section. Meanwhile, FIG. 1 shows a charging section and an ignition section of the processing path.

The raw material M may include a blended raw material for sintered ore production. The raw material (M) may be prepared by assembling a mixture of iron-containing raw materials, auxiliary raw materials and a binder with moisture.

At this time, the auxiliary material may include quicklime, and thus, the raw material M may contain quicklime and moisture. Thus, while the raw material M is discharged from the charging device 1000 to the sintered bogie 60, the raw material M is attached to the gate portion 300 to be described later of the charging device 1000 to generate an attachment. . Here, the deposit is produced by the cementation reaction of quicklime and moisture. Here, the gate unit 300 may be referred to as a hopper gate.

Thus, an embodiment of the present invention provides a charging device 1000 that can easily detach the attachments generated during operation.

2 is a partially enlarged view of a charging device according to an embodiment of the present invention. In addition, Figure 3 is an enlarged view of a gate unit according to an embodiment of the present invention.

The charging device 1000 according to the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

The charging device 1000 according to an embodiment of the present invention, the raw material (M) can be accommodated therein, the hopper 100 is formed with an opening 120 on one side, and the hopper to open and close the opening 120 ( 100) includes a gate portion 300 installed on one side.

In addition, the charging device 1000, the drum feeder 200 disposed at the lower side of the opening 120 to guide the cutting of the raw material M, the charging chute 400 installed obliquely under the drum feeder 200, The hopper 100 may further include a transfer part 500 disposed on the upper side.

The hopper 100 (also referred to as a 'raw material hopper') may extend in the vertical direction (Z-axis direction). The top of the hopper 100 is open, and an opening 120 may be formed at one side. Here, one side means the lower portion of the hopper 100.

The hopper 100 includes a first side wall 111 and a second side wall 112 spaced apart from each other in the front-rear direction, and a first wall 113 and a second connecting both ends of their left and right directions (Y-axis direction). Wall 114 may be included. At this time, the second side wall 112 may be formed to be inclined toward the first side wall 111 to form the bottom of the hopper 100. The opening 120 may be formed under the first side wall 111. Of course, the structure of the hopper 100 is not particularly limited to the above.

The opening 120 may be formed to penetrate the lower portion of the hopper 100 in the front-rear direction (X-axis direction). The raw material M may be cut through the opening 120.

Meanwhile, the front-rear direction, the left-right direction, and the up-down direction are for explaining an embodiment of the present invention. These directions may be defined as follows based on the sintered bogie 60. The front-rear direction is the longitudinal direction of the sintered bogie 60, the left-right direction is the width direction of the sintered bogie 60, and the up-down direction is a direction intersecting both the front-rear direction and the left-right direction, and the sintered bogie 60 and the charging device ( 1000) may be spaced apart from each other. Of course, these directions may be defined in various ways in addition to the above-described methods.

The width of the opening 120 in the left-right direction may be larger than the width of the gate portion 300 in the left-right direction. The height of the opening 120 in the vertical direction may be smaller than the height of the gate unit 300 in the vertical direction. The opened shape of the opening 120 may be a rectangular shape. Of course, in addition to this, the openings 120 may be formed in various forms.

The opening 120 may be divided into a plurality of sections D. The plurality of sections D may include, for example, the first section D1, the second section D2, the third section D3, the fourth section D4, and the fifth section D5. The plurality of sections D may be arranged in left and right directions.

A plurality of gate units 300 are provided, arranged in the left and right directions, and may be arranged in each section. The widths of the gate portions 300 in the left and right directions may correspond to the widths of the openings 120 in the left and right directions. In detail, the width of the whole of the gate portions 300 in the left-right direction may be the same as the width of the opening 120 in the left-right direction. That is, the gate units 300 may cover the entire plurality of sections D of the opening 120.

The gate unit 300 may independently adjust the opening degree of the opening 120 in each section. For example, the gate parts 300 may be installed in front of the opening 120 in a divided gate method. The bottom height of the gate portions 300 installed in each section can be adjusted to adjust the segregation in the width direction of the raw material M charged from the hopper 100 to the sintered bogie 60.

The process of adjusting the opening and closing of the opening 120 by adjusting the lower height of the gate unit 300 will be described. For example, the gate unit 300 may open the opening 120 by lowering the lower side to close the opening 120 and lowering the upper side toward the upper side. Here, the lower end of the gate unit 300 refers to the rotating bodies 310, 320, 330, and 340, which will be described later.

At this time, if an attachment is attached to the lower end of the gate portions 300, the opening degree of each section fluctuates irregularly, and thus, it is difficult to control the width direction segregation. Thus, the gate unit 300 according to an embodiment of the present invention may include a rotating body 310, 320, 330, 340 to move and remove the attachment to the outer surface of the gate unit 300.

Here, the detachment of the attachment by the gate part 300 is related to the rotation of the rotating bodies 310, 320, 330, and 340, apart from the height change of the rotating bodies 310, 320, 330, and 340. For example, the gate unit 300 may remove the attachment from the belt 340 by rotating the belt 340 to be described later on the rotating bodies 310, 320, 330, and 340.

As such, the gate portion 300 operates to open and close the opening 120 and to remove the attachment, and is performed in different ways.

Hereinafter, the drum feeder 200, the charging chute 400, and the transfer part 500 will be described first before the gate part 300 is described in detail.

The drum feeder 200 may be installed under the hopper 100. The drum feeder 200 extends in the left-right direction and rotates around a drive shaft (not shown) in the left-right direction, and it is possible to control the cutting speed of the raw material M using an outer circumferential surface. Of course, in addition to the drum feeder 200, various types of feeders may be provided below the hopper 100. For example, a feeder in the form of a vibration suit may be provided.

The charging chute 400 may be installed to be inclined at the bottom of the drum feeder 200. Here, the charging chute 400 may have a high height of the front end located in the front (downstream of the processing path) and a low height of the rear end located in the rear (upstream of the processing path), based on the cart traveling direction. have. That is, the charging suit 400 may be installed to be inclined downward from front to rear. The raw material M is guided to fall by the charging chute 400, and segregation in the thickness direction can be controlled. The sintered bogie 60 may be disposed under the charging chute 400.

The transfer unit 500 may also be referred to as a shuttle conveyor. The transfer part 500 extends in the left-right direction, and the length can be adjusted in the left-right direction. The transfer unit 500 may supply and drop the raw material M to the hopper 100, and at this time, reciprocate the end of the dropping of the raw material M in the left-right direction and change the dropping point of the raw material M. Thus, the center of the surface of the raw material M in the hopper 100 may be convex toward the upper side or concave toward the lower side. By controlling the surface shape of the raw material M as described above, it is possible to assist the width direction segregation control of the raw material M by the gate unit 300.

Hereinafter, the gate unit 300 according to an embodiment of the present invention will be described in detail.

The gate unit 300 may be installed on one side of the hopper 100 to open and close the opening 120. The gate unit 300 may include a rotating body 310, 320, 330, and 340 support frames 350, an elevator 360, a driver 370, a cleaner 380, and a controller (not shown).

The rotating body may include at least one of the belt 340 and the rollers 310, 320, and 330. First, a rotating body including both the belt 340 and the rollers 310, 320, and 330 will be described.

The rotating body may include a belt 340 and rollers 310, 320, 330. The roller may include a driving roller 310 and support rollers 320 and 330. The belt 340 is wound around the driving roller 310 and the supporting rollers 320 and 330 to be fastened in an open belt manner to form the outer surface of the rotating body.

Since the belt 340 forms the outer surface of the rotating body, the attachment to the belt 340 can be quickly removed while the belt 340 is constantly rotated. Therefore, by controlling or preventing irregular fluctuations of the opening degree by the attachment, segregation of the raw material M can be smoothly performed. Specifically, by suppressing or preventing irregular fluctuations in the opening degree by the attachment, it is possible to smoothly control not only the width direction segregation of the raw material M but also the thickness direction segregation. At this time, the belt 340 may include an elastic material, and accordingly, it is possible to reduce the impact of the raw material (M) being transmitted to the rollers (310, 320, 330).

The driving roller 310 and the supporting rollers 320 and 330 may extend in the left and right directions, respectively, and may be disposed in front of the opening 120. The driving roller 310 and the supporting rollers 320 and 330 may be arranged in the vertical direction. Here, the driving roller 310 may be disposed above the support rollers 320 and 330 to be protected from collision with the raw material M.

The support rollers 320 and 330 may include a first support roller 320 and a second support roller 330. The driving roller 310 and the first supporting roller 320 are arranged in the vertical direction, and the second supporting roller 330 may be spaced forwardly between the driving roller 310 and the first supporting roller 320. . That is, the outer shape of the rotating body can form a triangular pillar shape. Accordingly, it is possible to stably withstand the load applied forward when the raw material M is cut out.

Of course, the number and arrangement of support rollers are not particularly limited to those described above. That is, the support roller may be provided in various numbers, and thus, the rotating body may form various shapes such as a quadrangular pillar shape in addition to the triangular pillar shape.

The support frame 350 may be disposed in front of the opening 120 so that the driving roller 310 and the support rollers 320 and 330 can be mounted.

The support frame 350 is a pair of vertical bars 351 extending upward and downward, and spaced apart from each other in the left-right direction, and a pair of projecting bars 353 projecting forward from each vertical bar 351, a pair It may include a connecting bar 352 connecting the top of the vertical bar 351.

Between the pair of vertical bars 351, the rollers 310, 320, 330 and the belt 340 may be disposed. Both ends of the driving roller 310 and the first support roller 320 in the left and right directions may be rotatably supported on opposite surfaces of the pair of vertical bars 351. The second support roller 330 may be supported on the protruding bar 353.

Next, a structure in which the rotating body includes only rollers will be described.

According to a modified example of the present invention, the rotating body may include only a roller. A plurality of rollers may be provided, and arranged vertically between a pair of vertical bars 351, and each roller may be rotatably supported by a pair of vertical bars 351. At this time, in the modified example of the present invention, the support frame 350 may not include the protruding bar 353.

With this structure, a plurality of rollers can form the outer surface of the rotating body. Here, the plurality of rollers may be a driving roller 310, each of which may be connected to the driver 370. Attachments attached to the outer circumferential surfaces of the rollers may be removed by rotation of the rollers. In addition, the opening degree of the opening 120 may be adjusted by lifting and lowering of the rollers.

In addition to this, the rotating body may have various modifications.

Hereinafter, the remaining components of the gate unit 300 according to an embodiment of the present invention will be described.

The lift 360 is disposed at a height higher than the opening 120 and may be connected to the support frame 350. The lift 360 may be a hydraulic or pneumatic cylinder. The lift 360 may lift the support frame 350. The elevator 360 extends in the vertical direction, and the lifting shaft 362 connects the cylinder 361 spaced apart from the upper side of the support frame 350 and the connecting bar 352 of the cylinder 361 and the support frame 350. It may include.

The cylinder 361 is connected to a predetermined hydraulic or pneumatic supply source (not shown), and is supplied with hydraulic or pneumatic pressure to raise and lower the lifting shaft 362 in the vertical direction. The support frame 350 may be elevated by the vertical movement of the elevating shaft 362, and thus, the belt 340 may be elevated and overlapped with the opening 120 in the vertical direction in front of the opening 120. In addition, the overlapped area of the opening 120 and the belt 340 may be adjusted by lifting. That is, the elevator 360 may adjust the height of the belt 340 to adjust the opening degree of the opening 120.

The cleaner 380 may directly or indirectly contact the belt 340 in front of the opening 120. The cleaner 380 may include a scraper or brush. In this case, the cleaner 280 may be installed to directly contact the belt 340. The cleaner 380 may include an air jet nozzle. In this case, the cleaner 380 may be spaced apart from the belt 340 and inject air into the belt 340. That is, the cleaner 380 may be indirectly contacted with the belt 340 through the injection air. In addition to this, the cleaner 380 may include various configurations within a range that satisfies being able to clean the surface of the belt 340.

The driver 370 may be mounted on the support frame 350. More specifically, the driver 370 may be mounted on the top of the pair of vertical bars 351. The driver 370 may be connected to the driving roller 310. In addition, the driver 370 may provide rotational force to the driving roller 310. That is, the driver 370 may rotate the driving roller 310. Furthermore, the driver 370 may rotate the belt 340 through the driving roller 310. The driver 370 may include various motors.

The controller (not shown) may adjust the magnitude and direction of the rotational force that the driver 370 transmits to the drive roller 310. That is, the controller can control the rotation speed and rotation direction of the belt 340 to more smoothly remove the attachment. The controller may be built in the driver 370 or may be connected to the driver 370 by wired or wireless communication. The controller may be connected to the elevator 360 to control the operation of the elevator 360.

Meanwhile, the rotating body may include a material having a contact angle to the secondary distilled water of 100 degrees or less. More specifically, the belt 340 may include a material having a contact angle with respect to secondary distilled water of 100 degrees or less. Of course, the rollers 310, 320, and 330 may also include the same material as the belt 340. The smaller the value of the contact angle to the secondary distilled water, the more the occurrence of deposits can be suppressed.

Here, the material having a contact angle to the secondary distilled water of 100 degrees or less includes natural rubber, synthetic rubber, and polyurethane. That is, the belt 340 may include at least one material of natural rubber, synthetic rubber, and polyurethane.

At this time, when considering the friction with the raw material (M), the belt 340 may include polyurethane having a relatively excellent wear resistance as a material. As such, as the belt 340 includes a polyurethane material, it is possible to minimize the generation of deposits due to moisture and quicklime contained in the raw material (M).

4 is an operation diagram of a charging device according to an embodiment and a comparative example of the present invention.

Hereinafter, a specific example of the operation of dropping an attachment while the charging device 1000 according to an embodiment of the present invention is operated will be described in comparison with a comparative example.

Figure 4 (a) shows a hopper 10 and the gate 30 of the comparative example. The gate 30 of the comparative example is composed of a gate plate 31, a lifting shaft 33, and a cylinder 32. At this time, when the attachment (S) is attached to the gate plate 31, the actual opening (h) is reduced as shown in the drawing than the desired opening (h0) of the gate plate (31). In this case, the gate plate 31 must be hit or vibrated. In both cases, there is a safety problem. If the attachment (S) is not removed quickly, the attachment (S) grows rapidly, adversely affecting the raw material (M) discharge.

4 (b) shows the operation of causing the belt 340 of the embodiment to rotate (R1) forward and to remove the attachment (S). That is, the belt 340 rotates forward (R1) by the forward rotation (R1) of the drive roller (310). Thereafter, when an attachment is attached to the belt 340, the attachment is moved from the first support roller 320 side to the second support roller 330 side by the normal rotation R1 of the belt 340. Accordingly, the attachment (S) may be forcibly removed by the cleaner 380, or as the contact surface angle between the attachment (S) and the belt 340 changes, the attachment (S) may naturally drop off.

4 (c) shows the operation of rotating the belt 340 of the embodiment in reverse rotation (R2) and dropping the attachment S. That is, the belt 340 reversely rotates (R2) by the reverse rotation (R2) of the driving roller 310. Thereafter, when an attachment is attached to the belt 340, the attachment moves from the first support roller 320 side to the driving roller 310 side by the reverse rotation R2 of the belt 340. Accordingly, the attachment material may fall off naturally by colliding with the raw material M, or may be forced off by colliding with the inner wall of the opening 120.

Therefore, in the case of the embodiment of the present invention, the opening degree H by the belt 340 may be maintained stably at all times.

1 to 4, a charging method according to an embodiment of the present invention will be described in detail.

As a method of loading raw materials into a bogie running on the processing path of the present invention, a process of preparing a raw material (M) in a hopper 100 disposed on an upper side of a bogie, such as a sintered bogie 60, of the hopper 100 During the process of opening the opening 120 using the gate portion 300 installed in front of the opening 120, while cutting the raw material M through the opening 120, the ash provided in the gate portion 300 It includes the process of dropping the attachment (S) attached to the gate portion 300 using the whole.

First, the raw material M is loaded into the hopper 100 to be provided, and the belt 340 forming the outer surface of the gate portion 300 is raised while the sintered bogie 60 is driven to open the opening 120. .

Thereafter, the belt 340 is rotated using a roller to quickly remove the attachment S from the belt 304. Therefore, the opening degree of the opening 120 can be stably adjusted while cutting the raw material M. This will be described in detail below.

The process of dropping the attachment (S) is a process of moving the attachment (S) by rotating the belt (340), and colliding the attachment (S) to the inner wall of the opening (120) or the belt (340) and the attachment (S) It may include a process of changing the angle of the contact surface.

At this time, the process of moving the attachment (S), more specifically, by controlling the operation of the driver 370 with a controller (not shown), the process of rotating the belt 340 in one direction (forward rotation), the belt ( While rotating the 340 in one direction, the process may include periodically rotating the belt 340 in the other direction (reverse rotation). At this time, by the reverse rotation of the belt attachment (S) collides with the inner wall of the opening 120 and falls off the belt 340, and the contact surface angle between the attachment (S) and the belt 340 increases sharply by the forward rotation of the belt. By doing so, the attachment (S) may fall off naturally. Of course, by cleaning the surface of the belt 340 using the cleaner 380 installed toward the belt 340 while rotating the belt 340 forward, the attachment S may be forcibly removed.

On the other hand, while cutting the raw material through the opening 120, by controlling the operation of the elevator 360 by the controller, the height of the belts 340 respectively provided in the gate portion 300 is adjusted, respectively, the raw material ( The cutting amount of M) can be adjusted in the left-right direction, that is, the same or different for each section in the left-right direction.

In addition, while cutting the raw material through the opening 120, by controlling the operation of the driver 370 with a controller, the rotation speed of the belts 340 are adjusted differently, so that the cutting amount of the raw material M is left and right. That is, it can be adjusted equally or differently for each section in the left-right direction.

Hereinafter, with reference to Table 1 below, the results of the raw material charging according to the embodiment and comparative example of the present invention will be described.

Comparison example Example rescue
(How it works) Gate plate structure
(No rotation) Rotator structure
(All rotation at 2 rpm, reverse rotation for 1 minute at 10 minute intervals) Raw material cutting amount
(kg / hr) 60 minutes elapsed 201 203 120 minutes elapsed 198 202 180 minutes elapsed 179 203 Character recovery rate
(Ratio of + 5mm sintered ore among sintered ore, wt%) 72.5 78.8

Table 1 above is an exemplary table showing raw material loading results according to examples and comparative examples of the present invention. Referring to Table 1, the gate 30 of the comparative example and the gate portion 300 of the example were respectively used to charge the raw material M. At this time, the belt 340 was rotated under the conditions described in Table 1 above. Ordered.

As a result, as the raw material cutting amount increased, the cutting time of the raw material was reduced, whereas in the comparative example, it could be kept constant. Then, after the sintering process, it can be seen that the recovery rate of the properties of the sintered ore is also increased.

The numerical values in Table 1 above are only examples for explaining the embodiments and comparative examples of the present invention, and are not intended to limit the present invention.

Hereinafter, a specific example of loading the raw material into the sintered bogie 60 by the charging method using the charging apparatus 1000 according to the embodiment of the present invention will be described in comparison with a comparative example.

In the structure of the comparative example, since the deposits cannot be removed, it can be seen that the amount of raw material extraction decreases, and therefore, the recovery rate of the properties of the sintered ore is only 72.5 wt%. However, in the structure of the embodiment, since the attachment is removed in real time, it can be confirmed that the recovery rate of the properties of the sintered ore increased to 78.8 wt%.

This, in the embodiment, when the raw material M is segregated and charged in the width direction, is not affected by the attachment, it is possible to significantly reduce the quality deviation in the width direction of the sintered ore, as a result, the property recovery rate of the sintered ore Increased.

The above embodiments of the present invention are for the purpose of describing the present invention and not for the limitation of the present invention. It should be noted that the configurations and methods disclosed in the above embodiments of the present invention may be modified in various forms by combining or crossing each other, and such modified examples may be viewed as the scope of the present invention. That is, the present invention will be implemented in a variety of different forms within the scope of the claims and equivalent technical spirit, and various embodiments are possible within the scope of the technical spirit of the present invention. Will be able to understand.

1: sintering equipment 1000: charging device
100: hopper 200: drum feeder
300: gate 310: driving roller
320: first support roller 330: second support roller
340: belt 360: lift
380: cleaner 400: charging suit
500: transfer unit 60: sintered bogie
70: ignition furnace M: raw material

Claims (17)

A hopper in which a raw material may be accommodated and an opening is formed on one side;
A feeder disposed under the opening to adjust the cutting speed of the raw material; And
It includes; a gate portion installed on one side of the hopper to open and close the opening;
The gate portion is provided with a rotating body to remove the attachment to the outer surface of the gate portion,
The rotating body includes a belt, a driving roller, and a supporting roller, and the belt is wound around the driving roller and the supporting roller to be fastened in an open belt manner to form an outer surface of the rotating body,
The gate portion,
An air injection nozzle spaced apart from the belt in front of the opening and capable of injecting air into the belt so as to clean the surface of the belt;
A driver connected to the driving roller and providing rotational force to the driving roller;
The charging device further comprising a controller for adjusting the magnitude and direction of the rotational force that the driver transmits to the driving roller so as to control the amount of cutting of the raw material. A hopper in which a raw material may be accommodated and an opening is formed on one side;
A feeder disposed under the opening to adjust the cutting speed of the raw material; And
It includes; a gate portion installed on one side of the hopper to open and close the opening;
The gate portion is provided with a rotating body to remove the attachment to the outer surface of the gate portion,
The rotating body includes a plurality of driving rollers disposed in front of the opening, and the plurality of driving rollers are arranged in the vertical direction to form an outer surface of the rotating body,
The gate portion, a pair of vertical bars in which the plurality of drive rollers are rotatably supported, a driver connected to the plurality of drive rollers, and the driver so that the amount of cutting of the raw material can be adjusted. The charging device further comprises a controller for adjusting the magnitude and direction of the rotational force transmitted to the driving roller. delete The method according to claim 1,
The driving roller and the support roller are charged devices disposed in front of the opening. The method according to claim 4,
The drive roller and the support roller are arranged in the vertical direction,
The driving roller is a charging device disposed above the support roller so as to be protected from collision with the raw material. The method according to claim 4,
The support roller includes a first support roller and a second support roller,
The drive roller and the first support roller are arranged in the vertical direction,
The second support roller is a charging device disposed forwardly spaced between the drive roller and the first support roller. The method according to claim 4,
The gate portion,
A support frame disposed in front of the opening so that the drive roller and the support roller can be mounted;
It is arranged at a higher height than the opening, is connected to the support frame, the lifting device further comprising; a lift for lifting the support frame. delete The method according to claim 1 or claim 2,
The gate unit is provided with a plurality of charging devices are arranged in the left and right direction. The method according to claim 1,
The rotating body is a charging device comprising a material having a contact angle to the secondary distilled water of 100 degrees or less. The method according to claim 1,
The rotating body is a charging device comprising at least one material of natural rubber, synthetic rubber and polyurethane. The method according to claim 1 or claim 2,
The raw material includes a blended raw material for the production of sintered ore,
A charging device in which a sintered bogie of a sintering facility is disposed under the hopper. As a method of loading raw materials into a bogie running on a processing path,
Preparing the raw material in a hopper disposed above the bogie;
Opening the opening using a gate installed in front of the opening of the hopper;
Guiding the cutting of the raw material using a feeder disposed under the opening, and adjusting the cutting speed;
In the course of cutting out the raw material through the opening, using the rotating body provided in the gate portion to detach the attachment to the gate portion; includes;
The rotating body includes a belt forming an outer surface of the rotating body and a roller rotating the belt, or a plurality of rollers forming an outer surface of the rotating body,
The process of removing the attachment,
Further comprising a process of cleaning the outer surface of the rotating body by injecting air to the outer surface of the rotating body with an air injection nozzle installed toward the outer surface of the rotating body,
While cutting the raw material through the opening,
By adjusting the rotation speed of the outer surface of the rotating body to adjust the amount of cutting of the raw material,
The process of removing the attachment,
Rotating the outer surface of the rotating body to move the attachment;
Including the process of impacting the attachment to the inner wall of the opening or changing the contact surface angle of the outer surface of the rotating body and the attachment;
The process of moving the attachment,
A process of rotating the outer surface of the rotating body in one direction;
While rotating the outer surface of the rotating body in one direction, the process of periodically rotating the outer surface of the rotating body in the other direction. delete delete delete The method according to claim 13,
A plurality of the gate portions are provided and arranged in the left and right directions,
While cutting the raw material through the opening,
The charging method of adjusting the height of the gate portions or adjusting the rotational speed of the outer surfaces of the rotating bodies provided in the gate portions differently to adjust the amount of raw material cutting in the left or right direction equally or differently.

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