KR200264857Y1 - Automated Forming Device of Outlet Center of Furnace - Google Patents

Abstract

The present invention detects the completion point when the exit is closed by the exit closure and automatically forms the exit center as well as detects the firing of the mud filled in the exit, so that the exit closure can automatically retreat. The automatic forming apparatus of the outlet center, the outlet closure device, a plurality of outlet closure solenoid valves for forward and backward driving of the outlet closure, and a hole having a predetermined size in a predetermined portion of the body are processed. Is formed and is installed in the outlet closure cylinder inside the outlet closure cylinder, the operation cylinder which can slide back and forth to close and close the operation hole of the furnace to close the operation hole in the outlet closure cylinder body closed operation Outlet center forming core, which is attached to the front of the cylinder to form the outlet center, and the opening of the working cylinder To detect the firing temperature of the mud material by using an operation cylinder body for the engine, a plurality of operation cylinder solenoid valves for forward and backward driving of the operation cylinder, and the outlet center forming core and a temperature sensing line inserted inside the cylinder. A pressure detector comprising a firing temperature detector, a pressure detection switch and a pressure gauge for detecting the pressure of the outlet center operation cylinder, a controller for electrically controlling the outlet center operation cylinder according to the detected pressure of the pressure detector; It is provided with an alarm for informing the central control room of the forward and backward state of the exit closure.

Description

Automated Forming Device of Outlet Center of Furnace

The present invention relates to a center automatic forming device of a hole (hereinafter referred to as a 'outlet') for discharging the melted melt in the furnace, in particular, when the outlet is closed by the outlet closing device, the completion point is detected. The present invention relates to an automatic exit center forming apparatus for automatically forming a center and detecting the firing of a mud filled in the exit port so that the exit closure can automatically retreat.

1 and 2 illustrate an example of an exit opening state of a blast furnace using a conventional exit closure and a method of forming a exit center.

In general, in order to discharge the molten metal reduced in the furnace through the outlet, it is a work to drill holes by attaching iron bars and bits to the outlet drilling machine (hereinafter referred to as 'opening machine'). When discharged through the exit port, the sludge and slag flow through each process.

As shown in the drawing, after draining the molten iron and slag from the blast furnace, and after a certain period of time, the starting point is completed, the surrounding area of the exit is cleared, the exit closing device (2) is pivoted, and the mud material When the closing is completed by filling the inside of the exit port (2-2), the mud material filled inside the exit port is determined to be hardened by the high heat generated from the exit port (hereinafter referred to as 'firing'). If you retreat (2), you will be on standby until the next departure. Then, the opening of the exit port waiting in the other direction is repeated and repeated in a continuous operation.

However, when opening the exit opening, the worker 100 manually lifts the round bar 101 in order to be a bit excavation in the center of the exit opening 4 (hereinafter, referred to as a “center”). In the formation of the outlet center by using a large hot water (5) burns caused by high-temperature radiant heat and blast furnace gas ejection, and in a poor working environment conditions, there is a realistic difficulty, and the worker 100 can manually round the rod (101). By forming the outlet center by using), if the center is not formed correctly, penetrate the outlet port to discharge the waste water and slag, and then close it with the outlet closure (2). There is a problem of failing to close the exit and repairing the exit, and the problem of new balconies leading to the melting of the furnace due to this problem. When the closing of the opening is completed, it is not known whether the mud material (2-2) filled in the opening is firmly fired, and the worker decides arbitrarily and retracts the opening closure directly after a certain time. There is a problem in that the retractor must retreat, and the mud material is not fired, so that the workload that must be closed early due to the expansion of the exit hole during the discharge of the outlet melt is increased.

The present invention was devised in view of the above-described problems of the prior art, and when closing the exit with the exit closure, the completion point is detected and the exit center is automatically formed as well as the firing of the mud filled in the exit. It is an object of the present invention to provide an automatic exit center forming apparatus capable of automatically retracting the exit closure by detecting the presence of a door.

Automatically forming the outlet center of the furnace according to the present invention for achieving the above object, the outlet closure, a plurality of outlet closure solenoid valves for forward and backward driving of the outlet closure, and a predetermined portion of the body A hole of a predetermined size is formed in the outlet center to form an outlet closure cylinder installed inside the outlet closure, and a hole formed in the outlet closure cylinder body to be tightly closed to operate the outlet of the furnace. In order to move the cylinder forward and backward, an operation cylinder capable of slide forward and backward, an outlet center forming core attached to the front of the operation cylinder to form an outlet center, an operation cylinder body for driving the operation cylinder, and a forward / reverse drive of the operation cylinder A plurality of actuating cylinder solenoid valves for A pressure detecting unit comprising a firing temperature detector detecting a firing temperature of the mud material using a sensing line, a pressure detecting switch and a pressure gauge detecting the pressure of the outlet center operation cylinder, and detecting the firing temperature according to the detected pressure of the pressure detecting unit. And a control unit for electrically controlling the precursor center operation cylinder, and an alarm for informing the central control room of the forward and backward state of the outlet closure.

1 is a view of the exit opening of the furnace using a conventional exit closure;

2 is a view showing an example of a conventional exit center forming method;

Figure 3 is an exploded view of the outlet center automatic forming apparatus of the furnace according to the present invention,

4 is a state diagram before closing the exit of the furnace as an example of using the automatic exit center forming apparatus of the furnace according to the present invention,

5 is a view showing an example of the exit port of the furnace according to the present invention using the automatic forming apparatus of the outlet center according to the present invention;

*** Explanation of symbols for main parts of drawing ***

1: furnace 2: exit closure

2-1: Mud material inside the closing device 4: Exit port

2-2: Internal sealing mud material of exit port 3: Exit closure cylinder

10: hole 11: working cylinder

12: temperature sensing line 13: center forming core

14: working cylinder body 15: pressure gauge

16: controller 15-1: pressure detection switch

16-1: alarm 17: cylinder rod sealing seal

21, 22, 23, 24: solenoid valve 101: round bar

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention in more detail.

Figure 3 is an exploded view of the outlet center automatic forming apparatus of the furnace according to the present invention, Figure 4 is an example of using the outlet center automatic forming apparatus of the furnace according to the present invention is a state diagram before closing the outlet of the furnace, 5 is a view illustrating an example of a melting point of the melting furnace of the melting furnace as an example of using the automatic forming apparatus of the tapping center of the melting furnace according to the present invention.

As shown in the drawings, a plurality of outlet closure solenoids for forward and backward driving of the outlet closure 2 and the outlet closure 2 are shown in the drawings. A valve 21, 22, and an outlet closure cylinder 3 installed in the outlet closure 2 by forming a outlet center by processing a hole 10 having a predetermined size in a predetermined portion of the body; An operation cylinder 11 which is closely fitted to the hole 10 machined in the outlet closing cylinder 3 body and is capable of sliding forward and backward to move the exit opening of the furnace 1 and the front of the operation cylinder 11. A plurality of outlet center forming cores 13 for forming the outlet center, an actuating cylinder body 14 for driving the actuating cylinder 11, and a plurality of the actuating cylinders 11 for forward and backward driving; Operation of the cylinder solenoid valves (23, 24), and Firing temperature detection unit for detecting the firing temperature of the mud material (4) using the outlet center forming core 13 and the temperature sensing wire 12 inserted into the cylinder (11), and the pressure of the outlet center working cylinder A pressure detector comprising a pressure detection switch 15-1 and a pressure gauge 15 for detecting a pressure, a controller 16 for electrically controlling the outlet center operation cylinder according to the detected pressure of the pressure detector, and It is provided with an alarm 16-1 for informing the central control room of the forward and backward state of the exit closure.

That is, the inside of the cylinder which pushes the center forming core 13 to measure the mud material firing temperature and the conical forming core 13 attached to the front of the cylinder which can form the starting center in the outlet closing cylinder 3. A firing temperature detector installed at the center, a pressure detector for detecting the pressure of the cylinder 11 pushing the center forming core 13, and an alarm 16-1 operated to the central control room at the completion of the exit center formation. And it is a device for automatically forming the outlet center by the forming core attached to the cylinder mounted inside the outlet closure, including a controller for controlling the interconnection by the electrical signal.

As shown in the figure, a hole 10 in which the exit center forming core 13 can be operated before and after the exit center forming core 13 is processed in the cylinder 3 in the exit closure 2 of the blast furnace, and the exit closure is removed. Upon completion of closing the cylinder, the cylinder body 14, which operates the forming core 13 attached to the cylinder forming the outlet center, is installed on the back of the outlet closure 2 and pushes the outlet center forming core 11 Sealing packing to prevent the inflow of mud material during the forward and backward movement is collected in a round circle shape, so the sealing is easy.

Attached to the front of the outlet closing cylinder 3, a temperature sensing line 12 for detecting the firing temperature of the mud material filled and filled in the outlet 4 is inserted into the forming core 13 for forming the outlet center. The temperature compensating wire is continuously connected to the outside through the cylinder 14.

In addition, when the detected temperature is 600 ° C. or more, the firing temperature detection unit detects that the firing of the mud material is completed and sends the result to the controller 16.

And, the outlet center forming core 13 is installed in a conical shape in front of the cylinder (11) rod, the pressure gauge 15 is installed to visually check the hydraulic operating pressure when the cylinder (11) advances, electric The pressure switch 15-1 is installed in the working pressure pipe to change the sequence by reading the detection signal. Therefore, it is determined that the cylinder operating pressure is set to 12KG / cm 2 or less.

Meanwhile, solenoid valves 23 and 24 of forward and backward are coupled to the outside of the cylinder body for the operation of the center forming core 13. It is connected to the outlet firing temperature detection unit for detecting the mud material firing temperature, the cylinder body 14, the pressure gauge 15, the pressure switch 15-1 for operating the center forming core 13 to control the electrical signal Controller 16 is installed.

The present invention, as shown in Figures 4 and 5, when the melt generated inside the furnace is completed through the outlet opening, turning the outlet closure to join the outlet junction surface, then mud material to the outlet In addition to filling the inside, the control unit opens the outlet center forming core cylinder forward solenoid valve to advance the outlet center forming core cylinder to the outlet front to form the center of the outlet center. When the outlet center forming core is advanced, the temperature sensing wire inserted inside the outlet center forming core detects the firing temperature of the mud material and is sent to the firing temperature detection unit and when the set temperature is reached, the controller opens the outlet center forming core cylinder forward solenoid valve. When operating the outlet center forming core cylinder, when a certain pressure is reached at the pressure gauge detection unit attached to the front end, that is, the thermometer inserted into the outlet center forming core cylinder has a mud material as time passes at the initial temperature of the outlet opening. It rises to set temperature by evaporation of the moisture contained in.

At this time, if the mud material is fired by advancing the outlet center forming core cylinder again, the outlet center forming core cylinder rises to a certain pressure (12KG / cm 2) rather than when the outlet center forming core cylinder moves forward.

At this time, the outlet center forming core cylinder reverse solenoid valve is opened in the controller, and when the forming core cylinder forming the center of the outlet port is retracted, the outlet center forming core returns to its original position, and the control unit of the outlet closing cylinder After opening the retracting solenoid valve to allow the cylinder to retract, when the exit closure revolves, the exit center hole is formed, which is completed and the operator reconfirms.

According to the present invention as described above, it is possible to prevent the safety disaster that can additionally occur in accordance with the centering operation due to the manual operation by the automatic centering operation by the drawing cone concentric center automatic forming core to advance the exit closure Precise opening can be maintained by forming the exit center before the opening work by remote control of the forming core, and it has an excellent effect to stabilize the exit and protect the equipment by retreating the exit closure by the control of plastic decision of mud material. It is devised.

Claims (1)

Outlet closure, a plurality of outlet closure solenoid valves for forward and backward driving of the outlet closure, and a hole of a predetermined size are formed in a predetermined portion of the body to form a outlet center, which is installed inside the outlet closure. And a working cylinder which is tightly fitted in the hole closure cylinder, which is machined in the hole closure cylinder body, and is capable of sliding forward and backward for closing the outlet of the furnace, and is attached to the front of the operation cylinder to form the outlet center. An outlet center forming core for driving, an actuating cylinder body for driving the actuating cylinder, a plurality of actuating cylinder solenoid valves for forward and backward driving of the actuating cylinder, and the outlet center forming core and inserted into the cylinder A firing temperature detector for detecting a firing temperature of the mud material using a temperature sensing line; A pressure detector comprising a pressure detection switch and a pressure gauge for detecting the pressure of the operation cylinder; a control unit for electrically controlling the outlet center operation cylinder according to the detected pressure of the pressure detector; and a forward and backward state of the outlet closure. Automatic forming apparatus of the exit center of the furnace, characterized in that it comprises an alarm to inform the central control room.