KR20120005281A - Device for sensing position of bucket in cdq plant - Google Patents

Abstract

PURPOSE: A device for sensing the position of a bucket in a CDQ plant is provided to enable smooth re-operation by rapidly coping with the malfunction of a sensor. CONSTITUTION: A device for sensing the position of a bucket in a CDQ plant comprises a sensing unit(10) and a selecting switch(20). The sensing unit is installed on each position on a bucket moving path transporting red heat cokes to a CDQ chamber to sense the right position of a bucket. The sensing unit comprises a main sensor(12) and at least one extra sensor(14). The extra sensor is formed separately from the main sensor. The selecting switch is electrically connected to the main sensor and the extra sensor. The selecting switch selects whether to operate the main or extra sensor.

Description

Bucket exact position detection device of CDD plant {DEVICE FOR SENSING POSITION OF BUCKET IN CDQ PLANT}

The present invention relates to a CDQ facility. In more detail, the present invention relates to a bucket position detection device that can be more stably detect the position of each process of the bucket.

Generally, CDQ (Coke Dry Quenching) facility is a facility for dry extinguishing the red-light coke extruded from the coke oven. The CDQ facility includes a chamber into which the red coke is charged and is carried by carrying the red coke to the top of the chamber.

The red coke extruded from the coke oven is carried in a bucket mounted on a carriage car. The bucket is moved to the carriage car and then to the traverser position for crane hoisting. The bucket is then lifted vertically by the crane to the top. The bucket moved to the upper part is moved to the upper part of the chamber according to the driving of the crane and then lowered down by the lowering and driving of the crane to lower the upper part of the chamber at the charging position.

Through such a driving process, the bucket containing the red coke is finally moved to the upper end of the chamber, and charging of the red coke can be performed. When charging of the coke is completed, the bucket is moved in the reverse order of the driving.

Each position of the bucket moving in the charging process is provided with a detection sensor for detecting that the crane has reached the correct position. This allows the crane to arrive at each position and continue the next run.

However, when the detection sensor does not detect the arrival of the bucket at any position during the remote operation of the crane, the bucket cannot be moved to the next process. In this case, not only the remote operation of the crane is stopped but also manual operation is impossible.

In particular, if the sensor does not detect that the bucket is in the correct position due to a breakdown, etc., while the glowing coke is loaded in the bucket, the loaded crane equipment is heated by the heat of the glowing coke in the bucket until maintenance is completed. Secondary equipment accidents occur, such as damage.

In addition, due to the inability to operate the CDQ facility, problems such as power reduction due to operation reduction and turbine stoppage are caused.

Accordingly, the bucket position detection device of the CDQ facility to be more stable, accurate and detect that the bucket arrived at each position during the movement of the bucket.

In addition, the present invention provides a bucket position detection device for a CDQ facility, which is capable of responding more quickly in the event of a failure of a detection sensor installed at each position to smoothly resume operation.

To this end, the apparatus is provided at each position on the bucket's movement path and includes a detection unit for detecting whether the bucket is in a correct position. The detection unit is provided separately from the main detection sensor and the main detection sensor to operate when the main detection sensor is abnormal. It may include at least one pre-detection sensor for.

The main detection sensor and the preliminary detection sensor may be a structure for detecting the magnetic force of the magnet member installed in the carriage car or crane moving the bucket or bucket of the CDQ facility.

The main detection sensor and the preliminary detection sensor may be disposed in proximity.

The apparatus may further include a selection switch electrically connected to the main detection sensor and the preliminary detection sensor, and for selecting whether to operate the main detection sensor or the preliminary detection sensor.

According to the device described above, in case of sensor abnormality, the preliminary sensor is immediately driven to cope with the problem quickly, so that the operation can be resumed in a short time to prevent the production reduction and prevent the occurrence of equipment accidents such as crane damage. It can be managed efficiently.

1 is a schematic diagram illustrating a process of moving a bucket to a chamber of a CDQ facility.
2 and 3 is a schematic view showing a bucket position detection device installed in each position on the bucket movement path of Figure 1 according to the embodiment.
4 is a schematic circuit diagram showing the circuit configuration of the bucket position correcting device according to the present embodiment.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As can be easily understood by those skilled in the art, the embodiments described below may be modified in various forms without departing from the concept and scope of the present invention. Where possible the same or similar parts are represented with the same reference numerals in the drawings.

All terms including technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

1 shows each position where the detection device is installed as a moving path of a bucket in a CDQ facility. Looking at the movement path of the bucket 100 with reference to Figure 1 as follows.

The red coke extruded from the coke oven is contained in the bucket 100 mounted on the carriage car 110, the bucket 100 is moved to the first position (A) for charging the coke by the carriage car. In the first position, the bucket is moved to the second position B for hoisting the crane with a traverser which is a crane driving process. The bucket moved to the second position is lifted vertically by the crane 120 to move to the third position C of the upper portion of the facility. The bucket lifted by the crane is moved from the third position to the fourth position D, which is the upper part of the chamber, as the crane moves. In the fourth position, the crane 120 is lowered to the fifth position E of the upper end of the chamber 200 by lowering the bucket 100. Bucket 100 moved to the fifth position (E) is to be loaded into the CDQ chamber 200, the loaded red coke in a state positioned on the top of the CDQ chamber 200.

When charging of the coke coke is completed in the CDQ chamber 200, the bucket 100 returns to the original position by moving the moving path in the reverse order.

Here, the detection device is installed at each position (A, B, C, D, E) on the bucket movement path to detect whether or not the bucket has reached each position and is in the correct position.

To this end, as shown in Figs. 2 and 3, the detection apparatus includes a detection unit 10 for detecting whether the bucket is in the correct position, and the detection unit 10 is located at each position to detect the presence or absence of the bucket. It includes a sensor. In addition, the detection sensor includes a main detection sensor 12 and at least one preliminary detection sensor 14 operated when the main detection sensor 12 is abnormal. The main detection sensor 12 and the preliminary detection sensor 14 are installed on the sensor base 16 installed at one side of the facility of the detection unit 10. The main detection sensor 12 and the preliminary detection sensor 14 are disposed adjacent to the sensor base 16. The preliminary detection sensor 14 is a sensor having the same structure as the main detection sensor 12, and is driven when the main detection sensor 12 fails.

In the present embodiment, the main detection sensor 12 and the preliminary detection sensor 14 are configured to detect the magnetic force of the magnet member 50. The magnet member 50 sensed by the detection sensor may be installed in the bucket 100. Alternatively, the magnet member may be installed to the carriage car 110 or the crane 120 to move the bucket.

The detector 10 is installed at a position corresponding to the magnet member 50 installed in the bucket 100, the carriage car 110, or the crane 120 when the bucket 100 is positioned at the corresponding position. . Accordingly, when the bucket is moved to each position, the detection sensor of the detector 10 detects the magnetic force of the magnet member 50 to detect whether the position of the bucket is in the correct position.

On the other hand, the detection unit 10 is electrically connected to the main detection sensor 12 and the preliminary detection sensor 14, the selection switch for selecting whether to operate the main detection sensor 12 or the preliminary detection sensor 14 ( 20) more.

According to the operation of the selection switch 20, the main detection sensor 12 is operated by a circuit connection or the preliminary detection sensor 14 is operated by a circuit connection.

In the present embodiment, the selection switch 20 is installed in the switch protection box 22 and spaced apart from the sensor base 16. The selection switch 20 may be installed in a position that can be easily operated by the operator and is not particularly limited in the installation position.

4 illustrates a circuit configuration of the main detection sensor 12, the preliminary detection sensor 14, and the selection switch 20 constituting the detection unit 10. As shown, the selector switch 20 connects the circuit to the main detection sensor 12 or the preliminary detection sensor 14 to operate either detection sensor.

Hereinafter, the operation of the apparatus will be described.

In the normal state, the selector switch 20 connects the circuit to the main detection sensor 12 so that the main detection sensor 12 operates in the detection unit 10.

In this state, for example, when the bucket 100 is lifted by the crane 120 to move from the second position (B) to the third position (C) to be in position, the magnet member 50 installed in the bucket (100) The main detection sensor 12 of the detection unit 10 installed on the facility is in close proximity. Accordingly, the magnetic force of the magnet member 50 is detected by the main detection sensor 12, and according to the detection signal of the main detection sensor 12, it can be confirmed that the bucket is positioned at the third position. This allows the bucket to proceed normally to the next position along the path.

Here, when the main detection sensor 12 does not operate due to a problem in the operation of the facility, the operator can quickly check the bucket position recognition by operating the selector switch 20 quickly.

That is, the operator directly connects the circuit from the main detection sensor 12 to the preliminary detection sensor 14 by operating the selection switch 20 in the field without replacing or repairing the main detection sensor 12 having a problem. As a result, the operation of the main detection sensor 12 is stopped and the preliminary detection sensor 14 installed near the main detection sensor 12 is operated.

Therefore, when the bucket is moved to the third position and is in the correct position, the preliminary detection sensor 14 detects the magnetic force of the magnet member 50 installed in the bucket 100. According to the detection signal of the preliminary detection sensor 14, the bucket can be normally moved to the next path.

In this way, in the event of a failure of the detection sensor it is possible to proceed quickly by operating the detection sensor provided in advance.

While the illustrative embodiments of the present invention have been shown and described, various modifications and alternative embodiments may be made by those skilled in the art. Such variations and other embodiments will be considered and included in the appended claims, all without departing from the true spirit and scope of the invention.

10: detection unit 12: main detection sensor
14 preliminary detection sensor 16 sensor base
20: selection switch

Claims (4)

It is provided in each position on the bucket moving path for transporting the red coke to the CDQ chamber, and includes a detector for detecting whether the bucket is in position,
The detection unit is a bucket position detection device of the CDQ facility comprising a main detection sensor, and at least one preliminary detection sensor provided separately from the main detection sensor. The method of claim 1,
And a selection switch electrically connected to the main detection sensor and the preliminary detection sensor, the selection switch for selecting whether to operate the main detection sensor or the preliminary detection sensor. The method according to claim 1 or 2,
The main detection sensor and the preliminary detection sensor is a bucket position detection device of the CDQ facility having a structure for detecting the magnetic force of the magnet member installed in the carriage car or crane moving the bucket or bucket of the CDQ facility. The method of claim 3, wherein
The main detection sensor and the preliminary detection sensor is a bucket position detection device of the CDQ facility of the structure arranged in close proximity.

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