KR101659568B1 - Apparatus for removing foreign material - Google Patents

Abstract

The present invention relates to a foreign substance disposal apparatus, and more particularly, to a foreign matter disposal apparatus comprising: a gate provided at an entrance formed on one side of a chute into which a work is introduced; A gate driving device for moving the gate to open and close the doorway; Hanging mesh; And an engaging net moving device for moving the engaging net through the doorway between a removing position for removing foreign matter contained in the material falling inside the chute and a discharging position for discharging the foreign matter to the outside. Accordingly, foreign matter such as iron pieces is detected, and at the same time, the hooking net is moved so that the foreign matter is filtered out from the material and discharged to the outside, so that the foreign matter can be removed without stopping the facility for a long time.

Description

[0001] Apparatus for removing foreign material [

The present invention relates to a foreign matter processing apparatus. More particularly, the present invention relates to a foreign matter disposal apparatus for separating foreign matters, particularly iron pieces, contained in a raw material by using a hook net in transporting raw materials or materials to the blast furnace.

Generally, pig iron is used as a material of a rolled material such as a cold rolled steel sheet manufactured in a steelworks. Such pig iron is heated in the blast furnace 2 at a high temperature of about 1500 ° C. or higher, Through an exit opening formed in the partition.

Referring to FIG. 1, in the raw material transport facility 2, the belt conveyor can transport raw materials, that is, iron ores, to the blast furnace.

Here, the raw material transport facility 2 is supplied with various fuels and raw materials used for blast furnace operation in all processes such as coke and sintering, and is stored in the bin 10, and is separated into appropriate granularity using the screen 20 , And is transported by a belt conveyor 30, a feeder or the like to be charged into the main body of the blast furnace 3.

At this time, wear or tear is caused in the pretreatment process such as sintering plant or coke plant, or in each device such as bin 10, screen 20, hopper 40, and chute 50 of the blast furnace transportation equipment 2 The iron pieces are mixed with the ore to be transported and are introduced into the blast furnace 3.

For example, as shown in Fig. 2, the iron piece 4 may be caught by a narrow section of the head chute 51 during transportation, thereby interrupting the supply of the raw material.

3, the iron piece 4 is fixed in a state of being protruded from the discharging relay hopper 41 of the hopper 40, which may cause various problems such as the lengthwise cutting of the loading belt 31 .

In particular, equipment accidents involving cutting off the loading belt (31), which has a total length of 860 m, are one of the large-scale equipment accidents involving a considerable amount of time and cost for loss of production and restoration due to the hurricane.

4, in order to prevent such an accident, the iron belt detector 60 is installed on the belt conveyor 30 located at the front of the major equipment such as the loading belt 31, The related equipment is stopped.

The applicant's invention related to this is Korean Patent No. 10-1422553 entitled " Iron Removal Apparatus for Blast Furnace Transport Equipment ".

However, the iron strip removing device of the blast furnace transportation equipment is a technique for continuously removing only the iron pieces 4 by a strong magnetic force without stopping the belt conveyor 30 even when detecting iron pieces, Only the C-1 belt 32 carrying the coke is available.

Accordingly, as shown in FIG. 4, the C-1 belt 32 may be provided with a magnetic iron piece remover 70.

However, in the O-1 belt 33 and the O-2 belt 34, which are iron ore transportation systems having an iron ore content of 50 to 70%, due to the adsorption of iron ore to be transported together with the iron pieces 4, It is impossible to apply a device for removing iron pieces of equipment.

Here, a belt cover 80 may be provided on each of the C-1 belt 32, the O-1 belt 33, and the O-2 belt 34 to prevent the separation of the raw material.

If it is difficult to install the iron-piece removing device by the magnetic force on the O-1 belt 33 and the O-2 belt 34, the inspectors may open a part of the belt 33 and 34 An inspection window 90 can be installed so as to allow entrance and exit.

However, it is difficult to grasp the exact position of the iron piece 4 due to the deviation due to the weight inertia depending on the amount of ore load on the belts 33 and 34. [ In addition, there is a problem that it is very difficult to be detected if it is impossible to identify according to the size of the iron piece 4 or if it is buried under the ore.

Therefore, if the removing action of the iron piece 4 is delayed, a subtraction loss is generated, leading to a wind and a wind.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a foreign matter disposal apparatus for separating foreign materials such as iron pieces contained in raw materials using a trap net.

According to a preferred embodiment of the present invention, the above object is achieved by a gate structure comprising: a gate provided at an entrance formed at one side of a chute into which a workpiece is inserted; A gate driving device for moving the gate to open and close the doorway; Hanging mesh; And a retention net moving device for moving the retention net through the exit opening between a removal position for removing foreign matter contained in the material falling inside the chute and a discharge position for discharging the foreign matter to the outside .

The conveyor belt may further include a foreign matter sensing device. When foreign matter is detected by the foreign matter sensing device, the trapping network may be moved to the removed position, And a control unit for controlling the hang-up network moving apparatus to move the hang-up network moving apparatus.

The control unit may control the gate driving unit to open the gate and move the latching network to the discharge position by using the latching network moving device.

Here, the gate driving apparatus may include a gate cylinder, and a gate rod provided between the gate and the gate cylinder.

The hanging-net moving device includes a frame on one side of which the hooking network is rotatably installed; A frame cylinder for moving the frame; And a rod installed between the frame and the frame cylinder.

When the latching net is located at the removal position, one side of the latching net is supported by the frame rotatably installed, and the other side is supported by a frame guide provided on the lower side of the entrance.

Further, when the latching net is located at the discharge position, the other side of the latching network is released by the frame guide and is rotated by its own weight.

In addition, it may further include a latching network guide for restricting the rotation of the latching network when the latching network rotates.

The apparatus may further include a discharge chute for guiding the foreign matter connected to the catching net guide.

Further, the apparatus may further include a sensing device for detecting opening / closing of the doorway or discharge of the foreign matter.

According to the signal of the sensing device, the controller may recognize the opening / closing of the doorway or the discharge of the foreign substance.

On the other hand, the foreign matter is a steel piece.

According to another aspect of the present invention, there is provided a foreign matter disposal apparatus for disposing a foreign matter such as iron pieces and moving a catching net to remove foreign matter from a material and discharging the foreign matter to the outside, Foreign matter can be removed.

Accordingly, it is ensured that the reduction loss does not occur in a blast furnace facility which does not generate a wind or a wind due to an accident, and which requires continuous operation.

In addition, unlike the prior art, since foreign substances are removed remotely, there is no burden on safety accidents, and continuous and immediate response to foreign substances is possible.

1 is a view showing a raw material transporting facility for transporting a raw material to a blast furnace,
Fig. 2 is a view showing a piece of iron which is caught in a narrow section of the head suit,
3 is a view showing various problems occurring on the charging belt by the iron piece,
4 is a view showing a conventional technique for removing iron pieces,
FIG. 5 is a view showing a foreign matter processing apparatus according to a preferred embodiment of the present invention,
6 is a view showing a chute of a foreign matter processing apparatus according to a preferred embodiment of the present invention,
7 is a view illustrating one side of a foreign matter processing apparatus according to a preferred embodiment of the present invention,
8 is a view showing the operation of the foreign matter processing apparatus according to the preferred embodiment of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted.

1, 5 and 8, a foreign matter processing apparatus 1 according to a preferred embodiment of the present invention includes a chute 100, a conveyor belt 200, a gate 300, a gate driving device 400 A catching net 500 for catching foreign matter S contained in the material M, a catching net moving device 600, a sensing device 700, and a control unit 800. Here, iron ore or the like may be used as the material M, and the foreign material S may be iron material such as iron pieces.

However, in the preferred embodiment of the present invention, the material M is described as a blast furnace raw material and the foreign material S is described as a steel piece, but not always limited thereto. For example, (Removal) of the specific foreign matter contained in the grain or the like inside the chute between the conveyor belts.

5 and 6, the chute 100 includes a chute main body 110 having a space 111 therein, a chute main body 110 for allowing the material M to be conveyed through the conveyor belt 200 to be introduced, A discharge port 130 through which the foreign matter S filtered through the latching net 500 is discharged and an entrance port 140 opened and closed by the gate 300 are included can do.

The material M to be conveyed through the conveyor belt 200 is moved to the loading belt 31 through the discharge port 130 after the foreign matter S is filtered by the catching net 500. [

At this time, in the preferred embodiment of the present invention, the material is conveyed to the chute through the conveyor belt 200 to be dropped, but the present invention is not limited thereto. The material may be introduced into the chute from other conveying belts, It is also possible to do.

The chute 100 may further include a gate guide 150 installed to guide the movement of the gate 300, as shown in Fig.

In addition, the chute 100 may further include a gate driving device support 160 installed to support the gate driving device 400, as shown in Fig.

The conveyor belt 200 can transfer the material M into the chute 100. Then, the operation of the conveyor belt 200 can be controlled by the control unit 800.

The conveyor belt 200 may further include a belt cover 80 and a device for detecting a foreign substance S such as the iron piece detector 60.

The gate 300 opens and closes the entrance 140 by the gate driving device 400.

The gate 300 is moved to close the entrance 140 when the foreign substance S is removed through the catching net 500 so that the material M is transferred to the outside of the shoot 100 through the entrance 140 Thereby preventing scattering.

Further, the gate 300 is moved to open the entrance 140 when the foreign substance S separated through the latching net 500 is discharged to the outside.

The gate driving device 400 is installed at one side of the gate 300 to move the gate 300 so that the gate 140 can be opened and closed.

For example, the gate driving device 400 may include a gate cylinder 410 and a gate rod 420, as shown in FIG. The gate drive apparatus 400 drives the gate cylinder 410 to move the gate rod 420 connected to one side of the gate 300 to move the gate 300 to open and close the gate 140.

The catching net 500 removes the foreign matter S contained in the material M. [

As shown in FIG. 7, the latching net 500 may be formed in a lattice form provided with a latching space 510.

Here, the size of the foreign particles S to be filtered through the mesh 500 is larger than the space 510 formed in the mesh 500.

That is, foreign matter S such as strangeness, iron chips or the like, which is larger than the catching space 510 of the catching net 500, is caught by the catching net 500 and is caught.

The hooking network moving apparatus 600 moves the removing position where the foreign material S contained in the material M falling by the conveying belt 200 to the lower portion of the chute 100 is removed and the foreign matter S to the outside And moves the catching net 500 through the entrance 140 between the discharge positions for discharging.

That is, the retractable mesh moving apparatus 600 moves the retracting mesh 500 between the removal position shown in FIG. 8B and the discharge position shown in FIG. 8D.

7, the retractor retractor 600 includes a frame 610, a frame cylinder 620, and a frame 610, which are installed on one side of the retention net 500 so as to be rotatable, between the frame 610 and the frame cylinder 620 And a rod 630 installed on the rod 630. Here, as the frame cylinder 620, an air cylinder or the like may be used.

Accordingly, when the frame cylinder 620 is driven, the frame 610 in which the latching net 500 is installed moves between the removal position and the discharge position.

The chute 100 may further include a frame guide 170, a catching net guide 180, and a discharge chute 190.

The frame guide 170 may be installed in the chute 100 to support one side of the frame 610 when the frame 610 is moved. For example, as shown in FIG. 7, it is preferable that the frame guide 170 is installed on the lower side of the entrance 140.

The frame guide 170 supports one side of the retention net 500 provided on the frame 610 until the frame 610 is positioned at the discharge position to prevent the retention net 500 from rotating.

The foreign object S that is caught by the catching net 500 is caught by the weight of the foreign object S in accordance with the rotation of the catching net 500, As shown in FIG.

That is, in the retention net 500 provided on the frame 610 so that one side is rotatable, it is rotated by its own weight at the discharging position, and deflection occurs on the other side. As the other side of the latching net 500 is deflected, foreign matter S that is caught by the latching net 500 is discharged to the outside along the inclination of the latching net 500.

7 and 8, the latching net guide 180 may be installed below the frame guide 170. In this case,

Therefore, the catching net guide 180 restricts rotation of the catching net 500 by more than a predetermined angle, and allows the foreign matter S to be easily discharged to the discharge chute 190.

Here, the discharge chute 190 can be installed so that the foreign matter S can be safely discharged by a collection box (not shown) for facilitating the collection of the foreign matter S while avoiding interference with peripheral equipment.

As shown in FIGS. 7 and 8, the discharge chute 190 may be installed to be connected to the catching net guide 180.

The sensing device 700 may sense the field situation of the foreign matter processing apparatus 1 so as to recognize the operation of the foreign matter processing apparatus 1 by the user. Here, as the sensing device 700, a camera or the like may be used.

It is preferable that the sensing device 700 is installed at a position where it is easy to grasp the situation of the foreign matter processing apparatus 1 in the field.

In addition, the sensing device 700 may transmit an electrical signal including the field status information of the foreign matter processing device 1 to the control unit 800. [

The control unit 800 receiving the electric signal can recognize the situation of the foreign object processing apparatus 1 by the operator through a display device such as a monitor.

Accordingly, the operator can confirm whether or not the foreign matter S is properly discharged through the sensing device 700, and also confirm whether the foreign matter removing device 1 is operating properly.

The control unit 800 may control the conveyor belt 200, the gate driving unit 400, the catching network moving unit 600, and the sensing unit 700.

The control unit 800 may control the conveyor belt 200 to transfer the material M into the chute 100. [

The control unit 800 controls the gate driving device 400 to open and close the entrance 140 through the gate 300 so that the latching net 500 is moved to the removed position Discharge position.

In addition, the control unit 800 allows the operator to recognize the work situation obtained through the sensing apparatus 700. [

Hereinafter, the operation of the foreign matter processing apparatus 1 will be described with reference to FIGS. 4 and 8. FIG.

8 (a), when foreign matter S such as iron pieces is not detected through the foreign matter detecting device such as the iron wire detector 60, the catching net 500 is kept at the standby position, So that it can be easily moved to the loading belt 31.

Here, the stand-by position means a state in which the engaging nets 500 are not positioned at the removed position in the chute 100 while the material M is not positioned at the falling position.

That is, the standby position allows the material M to be easily moved to the loading belt 31 because the hanging net 500 is not positioned at the position where the material M falls. And, since the latching net 500 is not positioned at the discharge position, the latching net 500 does not rotate due to its own weight.

8 (b), when foreign matter S such as iron pieces is detected through the iron piece detector 60 or the like, the engaging net 500 is moved to the engaging net moving by the signal of the controller 800 And moves to the removal position by the device 600, thereby filtering the foreign matter S from the work M.

The control unit 800 stops driving the conveyor belt 200 and stops the driving of the gate 300 (see FIG. 8C) To open the entrance 140. The door 140 is then opened.

8 (d), the control unit 800 moves the latching net 500 to the discharging position through the latching network moving apparatus 600 driven by the signal of the controller 800, S to the outside.

Accordingly, the foreign object processing apparatus 1 detects the foreign object S such as iron pieces and simultaneously moves the catching net 500 to filter the foreign material S from the material M and then discharge the foreign material S to the outside, The foreign matter S can be removed without resting the apparatus 1. [

The foreign matter processing apparatus 1 according to the preferred embodiment of the present invention can remove the foreign matter S by moving the catching net 500 to the removal position and the discharge position, It is possible to remove the foreign matter S without resting.

Further, as described above, since the catching net 500 is rotatably provided by its own weight, the foreign matter S is discharged to the outside along the inclination formed by sagging of one side of the catching net 500, 500 are not required to be inclined.

The foreign matter processing apparatus 1 includes a gate 300 that opens and closes one side of the chute 100 so that foreign matter S such as iron pieces can be removed using the latching net 500 only when necessary .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

1: Foreign matter treatment device 2: Material transporting equipment
3: Blast Furnace 4: Iron
100: Suit 200: Conveyor belt
300: gate 400: gate driving device
500: Hanging screen 600: Hanging screen moving device
700: sensing device 800:
M: Material S: Foreign matter

Claims (11)

A gate provided at an entrance formed at one side of the chute into which the material is inserted;
A gate driving device for moving the gate to open and close the doorway;
Hanging mesh;
And an engaging net moving device for moving the engaging net through the doorway between a removing position for removing foreign matter contained in the material falling inside the chute and a discharging position for discharging the foreign matter to the outside,
The hanging-
A frame on which the hooking net is rotatably installed;
A frame cylinder for moving the frame; And
And a rod provided between the frame and the frame cylinder. The method according to claim 1,
And a conveyor belt for conveying and feeding the material into the chute,
The conveyor belt includes a foreign matter sensing device,
And a control unit for controlling the latching device to move the latching network to the removal position when a foreign substance is detected by the foreign substance detection device. 3. The method of claim 2,
Wherein the control unit controls the gate driving unit to open the gate and move the latching network to the discharge position using the latching network moving device. The method of claim 3,
The gate driving apparatus includes:
And a gate rod provided between the gate cylinder and the gate cylinder. delete The method according to claim 1,
Wherein one side of the latching net is supported by the frame rotatably provided when the latching net is at the removal position and the other side is supported by a frame guide provided below the entrance. The method according to claim 6,
Wherein when the latching net is located at the discharge position, the other side of the latching network is released by the frame guide and is rotated by its own weight. 8. The method of claim 7,
Further comprising a latching mesh guide for restricting rotation of the latching network when the latching network is rotated. 9. The method of claim 8,
And a discharging chute for guiding the foreign matter connected to the catching net guide and discharged. 10. The method of claim 9,
Further comprising a sensing device for sensing opening / closing of the doorway or discharge of the foreign matter. 11. The method of claim 10,
Wherein the control unit recognizes opening / closing of the entrance / exit of the foreign object according to a signal of the sensing device.

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