KR101410085B1 - Reclaimer apparatus for preventing the uneven distribution of the raw materials on belt conveyor and method for controlling the same - Google Patents

Abstract

There is provided a reclaimer device and a control method having a belt conveyor knock preventing function capable of preventing the deformation of coke to be loaded on a belt conveyor.
A reclaimer device having a belt conveyor knitting prevention function according to the present invention includes: a wheel chute for supplying coke from a bucket coupled to a bucket wheel and supplying the coke to a belt conveyor located below the coke wheel; A variable damper installed on the inside of the wheel chute such that a position of the coke is supplied to the belt conveyor so that the position of the variable damper can be varied; A driving unit for providing a turning force to the variable damper;
A load cell connected to the bottom of the belt conveyor to sense a state of the coking of the coke; and a controller for controlling the rotation angle of the variable damper by receiving information of the coke bombarded by the load cell, And a controller for varying the driving speed of the belt conveyor when the supply amount of the coking coal is varied according to the driving speed of the belt conveyor.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a reclaimer device having a belt conveyor knitting prevention function,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a reclaimer apparatus and a control method having a belt conveyor knitting prevention function, and more particularly, to a reclaimer apparatus and a control method using a variable damper rotatably mounted inside a wheel chute, To a reclaimer device having a belt conveyor knock preventing function and a control method.

In general, reclaimer is a device for transferring the coal or iron ore loaded on a large raw material yard to the coke plant or blast furnace by the required amount.

These reclaimers work by pouring the yard loaded material into a rotating bucket and discharging it to the conveying conveyor belt installed on the boom, and to discharge it to the desired location through the discharge chute.

1, the reclaimer includes a traveling section 2 moving along the traveling rail 1, a swing section 3 mounted on the traveling section 2, a cab 7, 6 and a dispensing portion 5.

As shown in FIGS. 1 and 2, coking coal such as coal or iron ore is generally placed in a cement yard, and is divided into a south side file (SF) and a north side file (NF) depending on the direction in which the coke is sandwiched.

The reclaimer moves between the south side file (SF) or the north side file (NF) by using the traveling unit (2) and the pivot unit (3), and discharges the cigarette while transferring the discharged cyanide to a required place.

Generally, in the case of the dispensing operation in the south side file (SF), the operation of placing the cyanide in the north side file (NF) proceeds and when the sufficient discharge work is progressed in the south side file (SF), the reclaimer moves to the north side file And simultaneously discharging the coking coal and performing the coking operation on the side of the south side file (SF). By repeating this process, the continuous discharging operation becomes possible.

3, the reclaimer may include a plurality of dispensers 5 depending on the width of the north side file NF or the south side file SF, and the dispenser 5 may be moved in the lateral direction While discharging coking coal.

The coke dispensed from the dispensing section 5 travels in the direction of the cabin 7 on the lower conveyor belt B1 which rotates in an endless track in the lateral direction through a wheel chute (see Fig. 4) provided in the dispensing section 5 And moves to the destination by taking the carry-out conveyor belt B2 located at the lower part thereof.

Referring to FIGS. 4 and 5, a description will be made of a process in which raw coke is discharged from a dispensing portion and loaded on a lower conveyor belt and transported.

The dispensing portion 5 includes a bucket wheel 5a rotating clockwise or counterclockwise and a bucket 5b mounted on the bucket wheel 5a.

A pair of bucket wheels 5a are spaced apart from each other by a predetermined distance, and a bucket 5b is mounted in the spaced apart space and rotated in conjunction with rotation of the bucket wheel 5a.

The coke is retained in the bucket 5b until the bucket 5b discharges the coke and reaches the highest point (12 o'clock position) in accordance with the rotation of the bucket wheel 5a. Thereafter, Of the bucket wheel 5a.

A wheel chute WS is provided below the pair of bucket wheels 5a to supply the dropped coke to the lower conveyor belt B1 provided at a lower portion of the wheel chute WS so that the lower conveyor belt B1 carries the coke to the carry- And conveyed to the belt B2.

On the other hand, a fixed damper D is installed inside the wheel chute WS to prevent the waste of coal from being discharged from the north side file (see FIG. 2) or the South side file (see FIG. 2) However, it is currently impossible to efficiently prevent the use of raw coal.

Various prior arts relating to an apparatus for preventing batching of raw materials are disclosed.

Korean Utility Model Application No. 20-1999-000123 (Jan. 15, 1999) discloses a " recurmer automatic load balancing device ".

This is a device for automatically regulating the undershapes of a reclamer, which is a dispensing facility. When the coals are formed in the reclaimer chute and the coke is deposited on the ground belt, the undercarriage is automatically adjusted to match the eccentricity of the coke. , It is a technique to prevent belt snaking.

However, the 'automatic recoiler under load wave automatic adjustment device' uses the sensor operating part to detect whether the coke oven is attached to the ground belt. In order to direct the operation bar from the horizontal bar installed in the horizontal direction to the ground belt, But a plurality of pellets are installed in the width direction of the ground belt to detect the state of the pellets of the pellets. The structure of the pellets is very complicated and there is a problem that the pellets are excessively caught by the resistance due to interference between the pellets and the pellets. do.

Even if the knitted state is detected, it is not possible to prevent the knitted state by merely moving the lower side wall mounted in the vertical direction in the width direction of the ground belt in the chute, so that it is difficult to expect the efficiency above the fixed damper.

In addition, when the continuous operation is performed between the south file and the north file, it is practically impossible to prevent the belt conveyor from being shifted only by the adjustment of the lower wave in this one direction.

Korean Patent Laid-Open No. 10-2003-0054533 (Feb. 3, 2003) discloses an automatic boom damper control apparatus for a reclaimer discharge chute.

This is a device to guide the transport of reclaimer's ore discharging down to the proper position when falling down. It is different from changing the position of the damper to the height of the coke to be loaded on the yard, So as to prevent the displacement of the coking coal by changing its position.

However, such a facility requires a separate facility for varying the position of the discharge chute, an excessive power is required to rotate the discharge chute itself, and a re-clay There is a problem that the design layout of the entire equipment needs to be changed.

Even if the angle of the discharge chute is adjusted, it is very difficult to prevent the displacement of the raw coal by using a damper installed in the vertical direction and moving only in the width direction of the discharge chute.

Further, since the damper is also adjusted in one direction, there is a problem that it is virtually impossible to prevent the deviation of the belt conveyer when continuous operation is performed between the south file and the north file.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as adhering to the prior art already known to those skilled in the art.

Korean Utility Model No. 20-1999-000123 (January 15, 1999) Korean Patent Publication No. 10-2003-0054533 (July 2, 2003)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a reclaimer device which uses a variable damper capable of adjusting the inclination angle, and which is capable of preventing the coals from being piled on the belt conveyor, And a method of controlling the same.

To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a reclamer apparatus comprising: a wheel chute for supplying coke from a bucket coupled to a bucket wheel and supplying the coke to a belt conveyor located below the bucket; A variable damper installed on the inside of the wheel chute such that a position of the coke is supplied to the belt conveyor so that the position of the variable damper can be varied; A driving unit for providing a turning force to the variable damper; A load cell connected to the bottom of the belt conveyor to sense a state of the coking of the coke; and a controller for controlling the rotation angle of the variable damper by receiving information of the coke bombarded by the load cell, And varying the driving speed of the belt conveyor when the supply amount of the coking coal is varied according to the speed of the belt conveyor.

A shaft holder is coupled to an upper end of the wheel chute, a damping shaft is rotatably coupled to the shaft holder, an upper end of the variable damper is coupled to the damping shaft, and the driving unit is fixed to one side of the variable damper A driving rod having one end thereof fixedly coupled to the joint; a screw jack for switching the rotational force of the driving rod when the driving rod is rotated, And a control unit.

The variable damper includes a south side variable damper and a north side variable damper which are operated simultaneously or selectively when the dispensing operation progresses in the south side file or the north side side file so that they can face each other and the driving unit includes the south side variable damper and the north side variable And a south side driving part and a north side driving part which respectively provide a rotational force to the damper.

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To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a method of controlling a recumbler having a belt conveyor knitting prevention function, comprising the steps of: And the belt conveyor driving speed is adjusted while adjusting the tilt angle.

Determining the position of the belt conveyor to be supplied with the raw coal in order to correct the knitted state of the belt conveyor, And the inclination angle is adjusted.

And the driving speed of the belt conveyor is adjusted according to the supply amount of coking coal of the belt conveyor.

The present invention is advantageous because of the technical structure described above.

First, by controlling the inclination angle of the variable damper in accordance with the supply direction of the coke, the supply speed, and the supply amount, it is advantageous to prevent the actual coke combustion in various working environments.

Secondly, there is an advantage that the belt conveyor can be prevented from being shifted, thereby preventing meander.

Third, there is an advantage that prevention of falling of light to a peripheral device and occurrence of facility trouble can be prevented by preventing the belt conveyor from skewing.

1 is a schematic view of a conventional reclaimer arrangement,
FIG. 2 is a view schematically showing a work state using a reclaimer apparatus in a general cow yard;
3 is a view schematically showing a work state using a reclaimer apparatus in a general work file (a north side file or a south side file)
4 is a view showing a state in which a conventional coke is loaded on a belt conveyor through a wheel chute,
5 is a view showing a state where a conventional coke oven is piled on a belt conveyor,
6 is a configuration diagram of a reclaimer device having a belt conveyor knitting prevention function according to the present invention,
FIG. 7 is a view showing a variable damper and a driving unit, which are a part of a reclaimer device having a belt conveyor knitting prevention function of the present invention,
FIG. 8 is a schematic view showing the operating state of the variable damper and the driving unit, which are the parts of the reclaimer device having the belt conveyor knitting prevention function of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a reclaimer apparatus and a control method having a belt conveyor knitting prevention function according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

The method of controlling a reclaimer having a belt conveyor knitting prevention function according to the present invention is characterized in that the angle of inclination of a variable damper installed inside a wheel chute is adjusted so as to prevent a coke from being piled up on a belt conveyor provided under a wheel chute The coking coal can be supplied to the center side of the belt conveyor by adjusting the supply angle of the coking coal.

In addition, in adjusting the inclination angle of the variable damper, it is judged whether or not the load of the coking material loaded in the width direction of the belt conveyor is measured in real time, and when it is judged to be uneven, It is preferable that the process of determining the position to be established is preceded.

Since the amount of the coking coal supplied to the belt conveyor may vary depending on the inclination angle of the variable damper, it is preferable to control the moving speed of the belt conveyor in order to prevent overload and improve work efficiency.

Hereinafter, with reference to the accompanying drawings, a reclaimer device having a belt conveyor knitting prevention function of the present invention which enables the above-described control method will be described.

6 and 7, the reclamer apparatus having the belt conveyor knitting prevention function of the present invention includes a wheel chute 10, a variable damper 20, and a driving unit 30. [

The wheel chute 10 functions to supply coke from the bucket and supply coke to the belt conveyor C located below the coke.

A pair of bucket wheels are mounted with a wheel chute 10 therebetween. A plurality of buckets are mounted between the bucket wheels at regular intervals. When the bucket wheel is rotated, one bucket reaches the peak, At the start, the raw coke in the bucket is supplied into the wheel chute 10 by its own weight.

The bucket wheel is seated on the wheel support roller R1.

The variable damper 20 is mounted on the inner side of the wheel chute 10 and its upper end is rotatably mounted on the wheel chute 10. That is, the variable damper 20 is rotated by varying its inclination angle from the inside of the wheel chute 10 in accordance with the supply direction of the supplied coking coal (whether or not the supply of the supplied coking coal is supplied to the north side file or the south side file) The coke oven is supplied to the center of the belt conveyor C provided at the front end of the belt conveyor.

Therefore, it is possible to prevent the raw coal from being unevenly transferred to the belt conveyor (C), thereby preventing the belt conveyor (C) from skewing and also preventing facility troubles.

The drive unit 30 is coupled to the variable damper 20.

The driving unit 30 functions to provide a turning force when the variable damper 20 needs to vary its inclination angle with respect to the wheel chute 10 so that the driving unit 30 can be operated manually , It is desirable to automate the operation efficiency.

The driving portion 30 and the automation-related portion of the overall apparatus will be described later.

For the rotatable operation of the variable damper 20, it is preferable that the shaft holder H is coupled to the upper end of the wheel chute 10.

The shaft holder H may be formed to have a U-shaped cross section, and if the structure is such that the damping shaft S can rotate in the engaged state without detaching, the shaft holder H need not be limited to the above- Structure can be designed.

The damping shaft S is caught by the above-described shaft holder H and the upper end of the above-described variable damper 20 is fixedly coupled to one side of the outer circumferential surface.

The damping shaft S is manufactured in a general pipe shape and the shape thereof is not limited to the above-described structure and can be variously modified in design as long as it is rotatable about the shaft holder H.

Meanwhile, the driving unit 30 preferably includes a joint 32, a driving rod 34, and a jack screw 36.

The joint 32 is coupled to the lower end of one side of the variable damper 20.

One end of the driving rod 34 is fixedly coupled to the joint 32 and a jack screw 36 is coupled to the outer circumferential surface of the driving rod 34 so that the driving rod 34 passes through the jack screw 36.

A handle 38 is coupled to the upper end of the jack screw 36. The jack screw 36 changes the rotational movement (clockwise or counterclockwise rotation) of the handle 38 to the linear motion of the drive rod 34 to move the drive rod 34 forward or backward.

When the drive rod 34 is advanced, the inclination angle of the variable damper 20 is gentle, and when the drive rod 34 is retracted, the inclination angle of the variable damper 20 is increased.

This inclination angle increase / decrease is related to the loading position of the coke on the belt conveyor (C).

The belt conveyor C includes a flat central portion CC for preventing light falling and a left portion CL and a right portion CR formed upward at both sides of the central portion CC.

When the inclined portion of the variable damper 20 becomes gentle when the installation position of the variable damper 20 is located on the right side portion CR of the belt conveyor C, So that the supply position of the coking coal can be adjusted. That is, when the raw coke is kneaded to the right side CR of the belt conveyor C, the angle of inclination of the variable damper 20 is gently adjusted to supply the raw coke to the central portion CC side.

When the installation position of the variable damper 20 is located at the left side portion CL of the belt conveyor C, the same operation as described above can be carried out in the reverse direction to supply the raw coke to the central portion CC side.

The variable damper 20 preferably includes a south variable damper 24 and a right variable damper 22. The driving unit 30 may include a south driving unit 30S and a north driving unit 30N.

In the case where the dispensing operation is progressed in the south side file, the necessity of adjusting the inclination angle of the south side variable damper 24 is increased and the dispensing operation is progressed in the north side file The necessity of adjusting the inclination angle of the north variable damper 22 relatively increases.

In other words, when working on the north side file and working on the south side file, the direction of rotation of the bucket wheel is opposite to each other, and when the bucket starts to fall after reaching the peak point (12 o'clock direction) When the operation is performed in the file, the raw coal is supplied to the outside direction (belt conveyor right portion) of the north variable damper 22 located in the north side file direction. On the other hand, when the operation is performed in the south side file, raw coke is supplied to the outside direction (left side of the belt conveyor) of the south variable damper 24 located in the south side file direction.

Accordingly, when the work is performed in the north side file, the inclination angle of the north side variable damper 22 is made to be gentle, and when the work is performed in the south side file, the inclination angle of the south side variable damper 24 is made gentle, The necessity of adjusting the inclination angle of the south variable damper 24 or the north variable damper 22 varies depending on the working environment.

Of course, even when the work is performed in the north side file, the inclination angle of the south side variable damper 24 can be adjusted to prevent the discharge of the coking coal, and even if the work is performed in the south side file, So that it is possible to prevent it from being unevenly distributed.

It is preferable that the reclaimer apparatus having the belt conveyor knitting prevention function of the present invention further includes a load cell 40 and a control unit 50. [

When the load cell 40 and the control unit 50 are further included, the above-described driving unit 30 can be automated.

The load cell 40 is installed on the bottom surface of the belt conveyor C to sense the state of the cement. That is, the load cell 40 is mounted on the left side portion CL, the right side portion CR, and the center portion CC of the belt conveyor C, and detects the load of the coke to be loaded on the belt conveyor C in real time.

When the sensed weight information is transmitted to the control unit 50, the control unit 50 determines whether the weight information is stored based on the stored data. It is determined that the weight value is greater than the reference value on the left side part CL or the right side part CR and the manipulation signal is transmitted to the handle 38. [

It is desirable to transmit the operating signal of the handle 38 wirelessly in the cab and receive the radio signal so that the handle 38 is rotatable in the forward or reverse direction and this configuration is constructed with simple electronic and mechanical equipment It will be possible.

Further, when the rotation angle of the variable damper 20 is adjusted, the supply amount of the coking coal can be increased or decreased. The sudden increase and decrease in the supply amount of the coking coal may cause the belt conveyor C to be overloaded or the working efficiency may be deteriorated. Therefore, it is preferable that the driving speed of the belt conveyor C is varied according to the supply amount of the coking coal. That is, the driving speed of the belt conveyor C may be varied by varying the rotational speed of the driving roller R2 provided under the belt conveyor C by using the load information received from the load cell 40. [

Referring to Fig. 8, the operation of the reclaimer device having the belt conveyor knitting prevention function of the present invention will be briefly described.

In the case where the discharging operation of the coking coal proceeds from the north side file and the south side file, the operation principle is the same.

The load cell 40 installed on the bottom surface of the belt conveyor C senses the weight value of the cullet when the dispensing operation of the cullet is performed in the north side file and the formation of the cullet is generated in the right side CR of the belt conveyor C, And transmits a signal to the control unit 50.

The control unit 50 determines whether or not the knob is knitted and knitted, calculates the tilting angle of the north variable damper 22 according to the degree of knitting, determines the rotational angle of the handle 38 according to the calculated value, Lt; / RTI > In this process, the inclination angle of the variable damper 20 and the rotation angle of the handle may be computed values, but may be optimal values according to the statistical values.

Even in the case where the coke ooze operation is proceeding in the north side file, if the coke oozes into the south side variable damper 24 side, the inclination angle of the south side variable damper 24 may be adjusted to adjust the state of the raw fuel combustion.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10: Wheel chute 20: Variable damper
22: North side variable damper 24: South side variable damper
30: Driving unit 30S:
30N: North side driving part 32: Joint
34: driving rod 36: jack screw
38: Handle
40: load cell 50:
C: Belt conveyor CC: Center
CR: Right side CL: Left side
H: Shaft holder S: Damping shaft

Claims (8)

A wheel chute for supplying coke from a bucket coupled to a bucket wheel and supplying the coke to a belt conveyor located below the coke wheel;
A variable damper installed on the inside of the wheel chute such that a position of the coke is supplied to the belt conveyor so that the position of the variable damper can be varied;
A driving unit for providing a turning force to the variable damper;
A load cell coupled to the bottom of the belt conveyor so as to sense a knitted state of the coke;
A controller for controlling the rotation angle of the variable damper by receiving information of the coke detected by the load cell and varying the driving speed of the belt conveyor when the supply amount of the coke is varied according to the rotation angle of the variable damper; And a belt conveyor knitting prevention function.
The method according to claim 1,
Wherein a shaft holder is coupled to an upper end of the wheel chute, a damping shaft is rotatably coupled to the shaft holder, an upper end of the variable damper is coupled to the damping shaft,
The drive unit includes a joint fixedly coupled to one side surface of the variable damper, a drive rod having one end fixedly coupled to the joint, And a screw jack for switching the forward and backward power of the belt conveyor.
The method of claim 2,
The variable damper includes a south side variable damper and a north side variable damper which are operated simultaneously or selectively when the dispensing operation progresses in the south side file or the north side side file,
Wherein the driving unit includes a south side driving unit and a north side driving unit that provide a rotational force to the south side variable damper and the north side variable damper, respectively.
delete delete The belt conveyor according to any one of claims 1 to 3, characterized in that the inclination angle of the variable damper provided inside the wheel chute is adjusted so as to prevent the coking coal from being knocked on the belt conveyor provided under the wheel suit, Lt; / RTI >
The method of claim 6,
Determining the position of the belt conveyor to be supplied with the raw coal in order to correct the knitted state of the belt conveyor, And adjusting an inclination angle of the belt conveyor.
The method of claim 7,
Wherein the driving speed of the belt conveyor is adjusted according to the supply amount of coking coal of the belt conveyor.

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