KR20020053613A - Coke descent distribution control apparatus in coke dry quenching - Google Patents

Abstract

PURPOSE: A coke descent distribution control apparatus in a coke dry quenching is provided to prevent abnormal discharging of coke by irregular descent of coke that is dry quenched in the body of the coke dry quenching and discharged to the outside. CONSTITUTION: The coke descent distribution control apparatus in a coke dry quenching comprises a temperature detection part which is installed at the lower part of the body of the coke dry quenching to grasp temperature distribution of coke in the lower part of the coke dry quenching; a temperature control part(30) comparing and controlling detected temperatures of the temperature detection part with a target temperature; descending speed control valves(50-50-15) controlling descending speed of coke in the coke dry quenching according to instruction values of the control part; a connection member guiding operation of the descending speed control valve and compression sealing noxious gas inside the body of the coke dry quenching(100) to prevent external leak of the noxious gas; and a temperature monitor(81) receiving detected temperature signals from the temperature detection part, storing and indicating temperature variation according to the temperature signals, and inputting temperature required for operation.

Description

Coke descent distribution control apparatus in coke dry quenching

The present invention relates to a dry fire extinguishing coke discharge control apparatus in a main body of a dry fire extinguishing system, and more particularly, to a coke falling distribution control device in a dry fire extinguishing system which blocks high temperature coke down and discharges low temperature coke normally. will be.

In general, as shown in Figure 1, the dry fire extinguishing facility 100 is an upright cylindrical structure, the outside is surrounded by a steel bar 120, such as blast furnace, and the inside is built with a refractory edema so as to withstand high-temperature glowing coke have.

The dry fire extinguishing facility 100 is a facility for extinguishing by asphyxia by forcibly injecting high-pressure nitrogen into the main body, and there is a charging device for charging high-temperature coke into the main body at the upper part and high-temperature coke in the lower part. There is a discharge device 200 of the cooling coke extinguished.

By the way, as shown in Figure 1 in order to discharge the extinguished coke to the outside it passes through the outlet 210 inside the main body to be transferred to the discharge device, but the coke loaded inside the main body is lowered according to the particle size and density difference do.

Therefore, the load is not evenly discharged horizontally, but the coke in a certain place goes down quickly while the coke in another place goes down slowly.

As described above, when the unbalanced descent is made, undigested red coke may be discharged, and even if the fire is completely extinguished, there may be a problem in that coke in a high temperature state is discharged. That is, the temperature distribution under the main body may be irregularly distributed.

The irregular temperature distribution as described above is a phenomenon in which coke in a high temperature direction is discharged faster than other places, and thus, the coke loaded inside the main body is discharged abnormally, and the nitrogen supply for coking is excessively supplied with nitrogen. The coke has a problem that the temperature is lower than the proper temperature and the nitrogen is supplied less coke causes a digestion phenomenon as long as the discharge is carried out in a high temperature state to shorten the life of the dry fire extinguishing equipment.

In addition, when the coke is discharged in a high temperature state as described above, there is a problem that the operation must be stopped when the related subsequent equipment is damaged or a failure occurs due to the high temperature of the high temperature fired coke.

The present invention was devised to solve the conventional problems as described above, by installing a falling coke temperature detector to control the falling distribution of the discharged coke in the dry fire extinguishing equipment to prevent the high-temperature coke is discharged to the outside. The purpose is to provide a coke down distribution control device.

Figure 1 is a side view showing that the coke is discharged from the conventional fire extinguishing system body.

Figure 2 is a side view of the device according to the present invention.

Figure 3 is a side view of the lowering speed control valve according to the present invention.

Figure 4 is a cross-sectional view showing the operation of the distribution control pin according to the present invention.

Figure 5 is a cross-sectional view showing a temperature detector installed on top of the distribution control pin of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: dry fire extinguishing equipment main body 200: discharge device

30: temperature controller 50: descending speed control valve

52: distribution control pin 70: body connecting member

A coke down distribution control apparatus in a dry fire extinguishing system for achieving the above object, the apparatus comprising: a temperature detector configured to be located at a lower end of the main body of the dry fire extinguishing system and to grasp a coke temperature distribution of the lower part of the dry fire extinguishing system; A temperature controller for comparing and controlling the detected temperature from the temperature detector and a target temperature; A falling speed control valve for controlling the coke falling speed in the dry fire extinguishing system according to a command value of the control unit; A main body connecting member to prevent the operation of the descending speed control valve and the external leakage of the harmful gas inside the main body of the dry fire extinguishing facility by a compression sealing; Receiving a detection temperature signal from the temperature detection unit, the temperature monitoring according to the temperature signal, and the temperature monitor for inputting the temperature required for operation, characterized in that the coke down distribution control device in a dry fire equipment Is provided.

Hereinafter, with reference to the accompanying drawings will be described in more detail.

Figure 2 is a side view of the installation device according to the invention, Figure 3 is a side view of the descending speed control valve according to the invention, Figure 4 is a cross-sectional view showing the operation of the distribution control pin according to the invention, Figure 5 is a distribution of the invention As a cross-sectional view showing a temperature detector installed on the upper control pin, the discharge control device according to this is largely composed of a temperature detector, a temperature controller, a temperature monitor.

As shown in FIG. 2, the temperature detector is installed at predetermined intervals at a lower end portion of the dry fire extinguishing facility 100, and the inside is blocked and the outside is opened to reduce the detection error.

As shown in FIG. 2, the controller compares one temperature value detected by the thermometer 15 of the temperature detector and a predetermined target temperature value, and a valve control signal corresponding to a temperature difference higher than the target temperature value. On the basis of the temperature controller 30 and the output value indicating the difference between the target temperature value and the continuous measurement value based on the valve control signal of the temperature controller 30 so that the forward and backward operation of the distribution control pin 52 is controlled. It consists of a falling speed control valve (50).

As shown in FIG. 4 through the output control of the descending speed control valve 50, the front end is a predetermined length as a kind of round bar shape that is advanced to the position of the main body when the forward movement is completed. Distribution control pin 52 having a structure that is easy to move forward into the coke is stacked in shape, and such a distribution control pin 52 has a plurality of distribution control pins are respectively advanced in the body as shown in FIG. When it is in the center of the main body, it has a multi-faceted length so that only a predetermined gap is created without crossing each other so that the coke does not come out of the structure that maintains a constant size when a plurality of distribution control pins are fully advanced. .

As shown in FIG. 3, the control valve body 54 is fixed through the descending speed control valve, and an installation position thereof is vertically aligned with the thermometer 15.

The temperature monitor 80 is composed of an industrial computer to output a temperature change in the lower end of the main body of the dry fire extinguishing equipment 100 on the screen.

Hereinafter, the operation of the present invention configured as described above.

When the coke inside the main body of the dry fire extinguishing facility 100 descends for discharge, the coke temperature of the lower end of the main body is detected by a plurality of thermometers (15… 15-15) (Fig. 5) installed at the lower end of the temperature detector. The detection signal is sent to the temperature controller 30, and the temperature controller 30 compares one temperature value detected by the thermometer 15 of the temperature detector with a predetermined target temperature value and the detected temperature value is the target temperature. When the temperature difference is higher than the value, the valve control signal is output, and the power supply connection of the descending speed control valve 50 is made, and the spindle 53 (FIG. 3) moves forward, and by the spindle 53 operation. The temperature distribution control pin 52 is advanced to stop the falling of the coke detected by the high temperature difference.

In addition, a high abnormal temperature is detected simultaneously by a plurality of thermometers (15), so that even if a plurality of distribution control pins (52) of the descending speed control valve (50) are advanced at the same time, the structure does not intersect with the symmetrical structure. By advancing, the coke corresponding to the area of the simultaneous bundle is stopped.

The temperature controller 30 sends a valve control signal to the descending speed control valve 50 as much as the detected error by comparing the detected temperature with a target temperature value initially set to give a command to advance back and forth.

The error signal corresponding to the error between the set signal and the measured signal is transmitted to the central cab temperature monitor 81 and displayed on the screen to accurately grasp the temperature distribution, as well as the blocking member of the main body connecting member 70. By the spindle 53 is compressed and sealed will not discharge the harmful gas inside the body to the outside.

In addition, by automatically controlling the coke lowering speed of the lower end of the main body in the dry fire extinguishing system 100, the lower end temperature distribution can be effectively maintained, and the lower end temperature distribution management is appropriate. Can be maintained properly.

As described above, according to the present invention, by controlling the lowering speed of the lower part in the main body of the dry fire extinguishing system, it is possible to control the coke temperature in the main body to the target temperature distribution, thereby preventing the discharge of coke abnormality, the life of the internal fire extinguishing equipment In addition to improving the performance of the system, it is possible to reduce the maintenance cost of the related equipment.

Claims (1)

In the coke down distribution control apparatus in a dry fire extinguishing system, A temperature detection unit which is installed in the lower end of the main body of the dry fire extinguishing system and grasps the coke temperature distribution of the lower part of the dry fire extinguishing system; A temperature controller for comparing and controlling the detected temperature from the temperature detector and a target temperature; A falling speed control valve for controlling the coke falling speed in the dry fire extinguishing system according to a command value of the control unit; A main body connecting member to prevent the operation of the descending speed control valve and the external leakage of the harmful gas inside the main body of the dry fire extinguishing facility by a compression sealing; Coke down distribution control device in a dry fire extinguishing system characterized by receiving a temperature signal from the temperature detector, a temperature monitor for storing and displaying the temperature change according to the temperature signal, and input the temperature required for operation .