KR20010105755A - A cross sonde - Google Patents

Abstract

Borides generally can produce a cell (10) with high energy density. High power densities are also achievable using borides that are reasonably good conductors of electricity. High density is important to achieve high energy density. Another important factor is lower molecular weight per available electron. The borides generally provide a favorable balance of these factors, compared to other materials, such as lithium and zinc. Individual borides have other important characteristics, such as titanium boride which is safe. In a preferred embodiment, a boride is used as the anode (14) contained in a metal cup (16), and reacted against an air breathing cathode (20).

Description

Blast furnace putting on and taking off type cross Johnde {A CROSS SONDE}

The present invention relates to a cross sonde (CROSS SONDE) installed in the top of the blast furnace to measure the on-gas of the gas, more specifically, the operation of the turning chute to load the charge into the blast furnace due to the interference caused by thermal deformation of the cross sonde Even if this occurs, the present invention relates to a blast-removable cross-sonde in which the blast-furnace for replacing the cross-sonde is prevented by simply disengaging the tip probe portion of the cross-sonde into the furnace.

In general, the cross sonde (CROSS SONDE) is installed on the top of the blast furnace, this cross zone is, as shown in Figure 1, the hot gas supplied from the air vent 110 in the bottom of the blast furnace 100 is raised charges 120 Heat is transferred to the), and then the temperature of the elevated gas is measured to measure the gas temperature distribution in the blast furnace 100, which is an essential facility in the blast furnace operation to obtain the status of the blast furnace operation.

On the other hand, Figure 1 a and b in the blast furnace operation when the above-mentioned cross Johnde performs a normal operation, on the contrary, the deterioration operation by the deterioration due to the high temperature, it shows a poor operation that does not operate.

That is, as shown in Figure 1a, the charge 120, such as ore and coke is carried as a conveyor 130 and stored in a portion of the bunker 132 above the blast furnace, and then installed below the bunker 132 The charge 120 is charged into the blast furnace 100 while being distributed through the swing chute 134.

On the other hand, the gas (G) supplied from the tuyere through the annular tube 140 installed on the bottom of the blast furnace 100 passes through the softening fusion zone 142 in the blast furnace 100 to preheat and dry the charge 120. The gas continuously raised is discharged through the riser 144.

However, as shown in FIG. 1B, when the operation of the blast furnace 100 becomes unstable due to various factors, the gas rapidly escapes to the weak part of the softening fusion zone 142, and the softening fusion zone 142. ) Is generated, and the gas 120 of the soft fusion zone 142 slides rapidly, and the hot gas rapidly rises at once.

As a result, when the temperature of the top of the blast furnace 100 is normally maintained at 300-450 ° C. in the normal operation, when the softening fusion zone 142 collapses, a large amount of hot gas rapidly rises to increase the temperature of the upper part of the blast furnace 100. It raises to 600-900 degreeC.

Therefore, if the temperature is rapidly increased, the deformation of the front end portion of the cross zone 200 located at the top of the blast furnace 100 is bent upward due to the gas rising by the high temperature. ) Is to interfere with the turning chute 134 under the bunker 132 to evenly load the charge 120 into the blast furnace to disable the tilting and turning operation of the turning chute 134.

Accordingly, the thermally deformed cross zone 200 must be pushed into the blast furnace 100 or removed from the outside of the blast furnace. During operation of the blast furnace, air flows in when the cross zone departs from the cross zone 200 and eventually causes explosion of the blast furnace. There is a possibility that a large accident may occur, and the manhole (MAN HPOLE) cannot be opened due to the pressure in the blast furnace, so that the cross johnde 200 is pushed or detached while the blast furnace 100 is in a closed state, which is a cross sonde (200). This is because it is installed on the top of the blast furnace in such a state that it is impossible to remove or drop it.

On the other hand, the installation state of the blast furnace 100 of the conventional cross Johnde 200 is shown in FIG.

That is, as shown in Figure 2, through the flange 210 installed on the iron bar of the blast furnace 100, a probe 230 is mounted fixed to the plurality of thermometers 220 therein, the probe 230 A nitrogen gas (N2) supply pipe 242 for cooling the cross sonde 200 is embedded, and a discharge pipe 244 for discharging nitrogen gas for cooling is installed outside the furnace of the probe 230.

Therefore, the portion of the probe 230 of the cross sonde 200 in which the tenth type is generated by the hot gas that is inserted into the blast furnace 100 is closely coupled to the flange flange 210 and is integrally installed. When the thermal deformation as described above occurs, it is impossible to push the probe 230 of the cross zone 200 into the blast furnace 100 or to take it out of the furnace.

That is, when the thermal deformation of the cross John de 200 is installed in the conventional blast furnace, the emergency blast furnace 100 is to be subjected to the take-out and departure operation after the emergency, which causes a huge damage caused by the blast furnace air.

The present invention has been made in order to improve the various problems as described above, the object of the present invention is to provide a cross section of the probe section of the cross Johne installed in the top of the blast furnace temperature detectors for measuring the gas temperature of the blast furnace in a two-stage structure Therefore, the present invention provides a blast furnace detachable cross sonde in which the front end of the cross sonde can be quickly and easily detached from the blast furnace even when the thermal deformation of the cross sonde occurs.

1 is a view showing the state of cross Johnde according to the blast furnace furnace situation

a is a diagram showing the steady state of cross Johnde during blast furnace operation

b is a diagram showing the thermal deformation state of the cross Johnde during blast furnace operation

Figure 2 shows a conventional blast furnace cross sonde

a is the internal structure

b is a structural diagram showing the coolant path

3 is a structural diagram including a sectional view of a main part of the blast furnace detachable cross zone according to the present invention;

4 is a schematic exploded view showing the cooling pipe of the present inventors Cross Johne.

Figure 5 is a schematic diagram showing the operating state of the present inventors of the cross-sonde two-stage probe

Explanation of symbols on the main parts of the drawings

1 .... blast furnace removable cross Johnde 10 .... blast furnace

20 .... Temperature detector 30 .... Probe means

31 .... Flange 36 .... Fixed Rod

40 .... Singer Supply Pipe 42 .... Spring

50 .... Gas discharge pipe P1 .... Supply passage

P2 ....

As a technical configuration for achieving the above object, the present invention provides a cross zone having a plurality of temperature detectors for measuring the gas temperature in the blast furnace, and installed inside the blast furnace to allow the cooling nitrogen gas (N2) to pass through. ,

The rod is inserted into the rod and is inclinedly fixed to the steel bar, and a supply passage P1 and a moving passage P2 of nitrogen gas are formed therein, and the gas movement passage P2 includes a plurality of temperature detectors, and A two-stage probe means detachably connected;

A gas supply pipe inserted into the gas supply passage P1 of the probe means, the tip end of which is screwed so that a spring is installed at the front end to facilitate the detachment of the second stage probe;

By providing a blast furnace removable cross Johnde composed of a gas discharge pipe is installed on the outside of the blast furnace of the probe means.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a structural diagram including a sectional view of the blast furnace removable cross sonde according to the present invention, Figure 4 is a schematic exploded view showing the cooling pipe of the present invention cross sonde, Figure 5 is a cross-stage probe of the present invention cross sonde Schematic diagram showing the operating state of.

3 shows the blast furnace detachable cross sonde 1 of the present invention. The cross sonde 1 includes two stage probe means 30a and 30b which are inserted into the blast furnace 10 and are inclinedly fixed. The gas supply pipe 40 is inserted into the gas supply passage P1 of the tip probe means 30a, and is screwed and the spring 42 is installed to facilitate the detachment of the two-stage probe 30. 30 is divided into the gas discharge pipe 50 is installed on the outside of the blast furnace, looking at this in detail as follows.

First, FIG. 3 illustrates two-stage probe means 30a and 30b of the cross johnde 1, wherein the two-stage probe means 30 are inclinedly inserted into the blast furnace 10 in a state of being closely fixed to each other. It is comprised as the front-end probe 30a and the rear-end probe 30b.

In addition, the supply passage P1 to which nitrogen gas N2 for cooling the cross John 1 is supplied and the supplied gas are moved inside the front and rear end probes 30a to cool the probe means 30. Each of the moving passages P2 is formed in the longitudinal direction of the probe 30, and in particular, a plurality of temperature detectors 20 are built into the moving passages P2 of the rear end probe 30b.

In addition, the two-stage probe means 30a, 30b as described above is formed in a cylindrical shape having a predetermined thickness, the front end portion of the fixing rod 36 through the openings (32a, 32b) formed in the outer shell portion is screw fixed The front and rear end probes 30a and 30b are firmly fixed to each other as nuts 38 fastened to the rear end of the fixed rod 36, and the front and rear end probes 30a and 30b are When the fixing rod 36 is released, the fixing rods 36 are detachably fixed to each other.

Next, FIG. 5 illustrates the installation of the blast furnace of the probe means 30. The probe means is provided at the rear end probe 30b of the probe means 30 which is tightly fixed to each other as the fixed rod 36 and the nut 38. In order to install the 30 in the blast furnace, a flange 31 is bolted to the flange 16 of the fixed box 14 installed on the steel shell 12 of the blast furnace 10 is installed.

Next, FIG. 3 and FIG. 4 show a gas supply pipe 40 for supplying cooling nitrogen gas into the probe means 30, and the gas supply pipe 40 is a gas supply passage P1 of the probe means 30. ) And the leading end is screwed in.

A screw coupled to the screw groove 44 formed in the gas supply passage P1 of the probe means 30a is attached to the tip of the gas supply tube 40 inserted into the gas supply passage P1 of the probe means 30. A fixed washer 46 is formed integrally, and a spring 42 which is installed at the end of the gas supply pipe 40 is supported at the end of the rear end probe 30b, and a front end of the gas supply pipe 40 passes. 48 are horizontally coupled.

Next, as shown in Figure 3, the outside of the blast furnace of the probe means 30 is made of a configuration in which a gas discharge pipe 50 for discharging the supplied and moved cooling nitrogen gas to the outside of the cross Johnde (1) Lose.

Referring to the operation and effects of the present invention made in the above configuration in more detail as follows.

As shown in Figures 3 to 5, a plurality of temperature measuring instruments to determine the operating state of the blast furnace by measuring the gas temperature distribution in the blast furnace 10 by the hot gas rising from the air vent during operation of the blast furnace 10 Even if the cross johnde 1 having the built-in 20 is thermally deformed, the swing chute and the cross sonde evenly distribute and evenly distribute the contents in the blast furnace 10 by simply separating and detaching the two-stage probe means 30. 1) The blast-removable cross sonde (1), which quickly eliminated the interference between them, is as follows.

First, as shown in FIG. 3, the steel box 12 of the blast furnace 10 is mounted to the fixing box 14 to be inclined approximately 25 degrees, and to the flange 16 installed at the upper end of the fixing box 14. The flange 31 provided to the outside of the rear end probe 30b of the two-stage probe means 30 is fixed as several bolts.

Next, when the coupling between the rear end probe 30b and the front end probe 30a is described, the outer skin portions of the front and rear end probes 30a and 30b have a predetermined thickness, and thus, the opening 32a is integrally formed therethrough. The opening 32a of the tip probe 30a is formed to a predetermined depth so that a screw groove 35a is formed therein, and the opening 32b of the rear tip probe 30b is integrally formed. Penetrates into.

Therefore, the front end screw 36a of the fixed rod 36 inserted through the opening 34b of the rear end probe 30b is coupled to the screw groove 35a of the front end probe 30a, and the rear end probe The nut 38 is fixed to the screw 36b formed at the rear end of the fixing rod 36 protruding outward from the 30b.

As a result, the front end and the rear end probes 30a and 30b are firmly fixed to each other as the fixing rod 36, and the fixing rods 36 are fixed approximately four along the circumference of the probe means 30. do.

On the other hand, as shown in Figure 3, the inside of the front and rear end probes (30a, 30b) is supplied with a cooling nitrogen gas (N2) to prevent the thermal deformation of the cross Johnde (1) described above, and is replaced by a cross The gas supply passage P1 and the gas movement passage P2 discharged to the outside of the sonde 1 are integrally formed. In fact, the gas supply passage P1 has a structure in which a partition wall made of a pipe is installed.

In addition, as shown in Figure 4, the gas supply passage (P1) is connected to the flexible pipe to the rear and the gas supply pipe 40, the valve is installed to a certain depth, that is, the front end and the rear end probes (30a, 30b) Inserted to the boundary point of the, the screw 46 formed in the front end of the gas supply pipe 40 is coupled to the screw groove 44 formed in the gas supply passage (P1) of the tip probe (30a).

In addition, a fixing washer 48 is installed in the gas passage P1 of the tip probe 30a toward the front of the gas supply pipe 40 so that the screw fixing part is disposed outside the fixing washer 48 and the gas supply pipe 40. A spring 42 is installed in between.

Thus, as shown in FIGS. 3 and 5, the spring 42 is kept compressed when the front and rear probes 30a, 30b are fixed as the fixed rod 36, as described above. When the temperature of the rising gas in the blast furnace 10 rises rapidly and a deformation occurs in which the tip probe 30a of the cross zone 1 is bent upward, the operator does not blow the blast furnace 10 and at the same time the cross zone ( 1) is detached from the blast furnace, and the fixed rod 36 is separated so that the tip probe 30a is separated when the tip probe 30a and the rear probe 30b are separated.

As a result, as shown in Figure 5, the operation of the swing chute due to the deformation is quickly returned to normal operation in the blast furnace 10 is performed, once the operation of the blast furnace 10 in operation is completed and the rest period , To replace the new cross Johnde (1).

In addition, a gas discharge pipe 50 having a valve and a flexible pipe connected to an end thereof is connected to the rear end of the rear end probe 30b in the same manner as the gas supply pipe 40, so that the gas supply passage P1 and the gas movement passage ( Nitrogen gas for cooling circulated through P2) is collected in a storage tank (not shown) through the discharge pipe (50).

On the other hand, the gas detector passage (P2) of the front end probe (30a) and the rear end probe (30b) is usually arranged in order to be built in order, thereby during normal operation of the cross-zone 1 By measuring the gas temperature in the blast furnace 10 to determine the operating state of the blast furnace.

Accordingly, the front end probe 30a of the cross johnde 1 inserted into the blast furnace 10 can be detachably attached to the rear end probe 30b so that the cross probe 1 can be separated very easily when necessary. As the deformation occurs, even if interference with the turning chute occurs, the blast furnace 10 may be removed without venting.

Thus, according to the blast furnace detachable cross zone of the present invention, even if the cross zone probe portion is installed in a two-stage structure in which the temperature detectors installed at the top of the blast furnace and the temperature detectors for measuring the gas temperature of the blast furnace are installed, even if the thermal deformation of the cross zone occurs. There is an excellent effect that can be quickly and easily deviate the tip probe portion of the cross Johnde without leaving the blast furnace.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to know that those who have knowledge of this can easily know.

Claims (3)

In the cross-sonde (1), in which a plurality of temperature detectors (20) are built so as to measure the gas temperature in the blast furnace (10) and are installed inside the blast furnace so that the cooling nitrogen gas (N2) passes. The rod 10 is inserted into the rod 10 so as to be inclined and fixed to the steel shell 12, and a supply passage P1 and a moving passage P2 of nitrogen gas are formed therein, and the gas movement passage P2 has a plurality of temperatures. A two-stage probe means (30a) (30b) having a detector (20) built-in and detachably connected to each other; The gas supply pipe 40 is inserted into the gas supply passage (P1) of the probe means 30, the front end is screwed so that the spring 42 is installed in the front end to facilitate the separation of the two-stage probe 30, and Blast furnace detachable cross Johnde characterized in that the gas discharge pipe 50 is installed on the outside of the blast furnace of the probe means (30) The tip of the fixing rod 36 through the openings 32a and 32b formed in the outer shell of a predetermined thickness is screw-fixed to the two-stage probe means 30a and 30b, and the nut at the rear end thereof. (38) are configured as front and rear probes (30a) and (30b) which are tightly fixed to each other and are detachable The blast furnace detachable cross zone is characterized in that the flange 31 is bolted to the flange 16 of the fixed box 14 installed on the blast furnace 10, the shell 12, the outer side of the rear end probe (30b) is installed. The screw groove 44 formed in the gas supply passage P1 of the probe means 30a at the tip of the gas supply pipe 40 inserted into the gas supply passage P1 of the probe means 30. Screw 46 is formed integrally coupled to, The end of the probe means (30b) to support the spring 42 is installed in the end of the gas supply pipe 40, the fixing washer 48 through which the front end of the gas supply pipe 40 passes through the horizontal coupling Blast furnace putting on and taking off type cross sonde