KR102171087B1 - Apparatus for desiccating cured refractory and method thereof - Google Patents

Abstract

The present invention relates to a drying apparatus and a method thereof, comprising: a method for drying the inside of a container with an open top, the process of closing the top of the container; And a process of supplying hot air to the inside of the container, and it is possible to uniformly dry the inside of a container with an open top such as a Daetangdo.

Description

Drying apparatus and method thereof TECHNICAL FIELD [0002] Apparatus for desiccating cured refractory and method thereof

The present invention relates to a drying apparatus and a method thereof, and more particularly, to a drying apparatus and method capable of efficiently drying the inside of a container.

In general, in the blast furnace operation, iron ore and coke are charged from the top of the blast furnace, and then hot air sent from the hot stove is blown from the bottom, and the iron ore is melted and reduced as the heat to produce molten iron. The molten material generated in the blast furnace is discharged through an outlet formed on the side of the blast furnace in a state in which molten iron and slag are mixed. The melt discharged from the exit port passes through the Daetang Island installed on the column of the blast furnace.

Since the Daetang Island is used as a path for moving the hot melt, it can be formed to withstand high temperatures. Daetangdo can be formed by forming an external shape using iron skin, and constructing a refractory brick and irregular refractory inside the iron skin. At this time, the irregular refractory material is eroded as it directly contacts the hot melt and repeats expansion and contraction, resulting in a phenomenon in which the iron skin is deformed. Therefore, when the amount of molten iron treated through the Daetang Island is about 200,000 tons, the Daetang Island repair work, which is rebuilt after dismantling the irregular refractory, is regularly performed. However, since a large amount of moisture is used when constructing an irregular refractory, a drying operation is performed after reconstruction of the irregular refractory in Daetang Island.

In general, in the case of drying the irregular refractory of the Daetang Island, a pipe having an injection hole through which fuel gas can be discharged was installed inside the Daetang Island, and the irregular refractory was directly dried by generating a flame. In this case, since the injection holes formed in the pipes are spaced apart, there is a problem in that the irregular refractory is not uniformly dried because a temperature difference occurs between the injection hole where flame is generated and the space between the injection holes. In addition, when drying the amorphous refractory, the heating temperature of the amorphous refractory must be adjusted to have a constant pattern, but it is difficult for a highly skilled worker to control the heating temperature by experience. In addition, since coke oven gas is mainly used as fuel gas, there is a risk that workers may be exposed to coke oven gas and become poisoned.

KR 1997-0034543 U

The present invention provides a drying apparatus and method capable of uniformly drying the irregular refractory material constructed in Daetang Island.

A drying apparatus according to an embodiment of the present invention includes a cover member for covering a container with an open top; A hot air supply unit for supplying hot air into the container; And a guide member provided under the cover member to guide a moving direction of the hot air supplied from the hot air supply unit.

The cover member includes a horizontal portion for covering an upper portion of the container; And bent portions bent downwardly on both sides of the horizontal portion to cover at least a portion of the side surface of the container.

The cover member may include a vent for discharging the hot air supplied from the hot air supply unit to the outside, and a discharge pipe capable of controlling the amount of hot air discharged may be connected to the vent.

The hot air supply unit may include a housing installed on the cover member to pass through the cover member; A fuel gas supply pipe connected to the housing to supply fuel gas into the housing; An air supply pipe connected to the housing to supply air into the housing; A suction fan for introducing air into the housing; A burner provided inside the housing to produce hot air using fuel gas and air; And a hot air supply pipe connected to a lower portion of the housing to supply hot air into the container.

The container is formed in a rectangular shape extending in one direction, the hot air supply pipe includes a horizontal pipe for supplying the hot air in the direction in which the container extends, and the horizontal pipe may be disposed under the guide member.

The guide member may be formed in a flat plate shape, and may be disposed to be spaced apart from the inner bottom surface of the container and the inner wall of the container.

The guide member may be formed in a plate shape having a curvature in a direction crossing the longitudinal direction of the cover member.

The guide member may be bent so that both ends thereof are inclined upward or downward in the width direction.

With respect to the direction in which the container is extended, both ends of the guide member may be arranged to be inclined downward.

A plurality of the guiding members may be arranged to be spaced apart in the vertical direction, and the horizontal pipes may be disposed for each lower portion of the guiding member.

A drying method according to an embodiment of the present invention is a method of drying the inside of a container with an open top, the process of closing the top of the container; Supplying hot air into the container; And a process of inducing hot air supplied into the container in the longitudinal direction and the height direction of the container.

The process of closing the upper part of the container includes a process of installing at least one guide member between a cover member for closing the upper part of the container and a bottom surface of the container, wherein the guide member comprises an inner wall of the container And can be separated.

The process of supplying the hot air may include supplying hot air between the guide member and the bottom surface of the container.

When there are a plurality of induction members, the process of supplying the hot air may further include a process of supplying hot air between the induction members.

According to the embodiments of the present invention, it is possible to uniformly dry the irregular refractory material constructed in Daetang Island. That is, in the case of drying the irregular refractory material constructed on the Daetang Island using hot air, an induction member capable of forming a moving path of the hot air may be installed in the inside of the Daetang Island by closing the upper portion of the Daetang Island. Accordingly, the hot air supplied to the Daetang Island is uniformly distributed and moved throughout the Daetang Island by the guide member, so that the irregular refractory material installed on the inner wall of the Daetang Island can be efficiently dried.

In addition, by reducing the temperature difference of the hot air in the large bath, it is possible to uniformly dry the irregular refractory, thereby improving the life of the irregular refractory.

1 is a perspective view schematically showing a state in which a drying apparatus according to an embodiment of the present invention is installed in Daetangdo.
2 is an exploded perspective view schematically showing a drying apparatus according to an embodiment of the present invention.
3 is a cross-sectional view taken along line A-A' shown in FIG. 2;
4 is a cross-sectional view taken along line B-B' shown in FIG. 2;
5 is a perspective view schematically showing the structure of a hot air supply unit.
6 is a view showing a state of drying a container (daetangdo) using a drying device according to an embodiment of the present invention.
7 is a perspective view showing various modified examples of the induction member.
8 is a cross-sectional view schematically showing a drying apparatus according to a modified example of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments make the disclosure of the present invention complete, and the scope of the invention to those of ordinary skill in the art It is provided to inform you. In the drawings, the size is exaggerated or enlarged to clearly express several elements, and the same reference numerals in the drawings refer to the same elements.

The drying apparatus according to the present invention can be applied to dry various containers having an open top and a space formed therein. Hereinafter, an example in which the drying apparatus according to the present invention is applied when drying the large hot water of the blast furnace will be described.

1 is a perspective view schematically showing a state in which a drying device according to an embodiment of the present invention is installed on a Daetang Island. Hereinafter, a direction in which the Daetangdo 200 extends is referred to as a longitudinal direction, a direction horizontally intersecting with respect to the longitudinal direction is referred to as a width direction, and a direction perpendicular to the longitudinal direction is referred to as a height direction.

Daetangdo 200 is for separating the melt discharged through the outlet 110 of the blast furnace 100 into molten iron and slag. The Daetangdo 200 has a space formed therein to accommodate the melt, and the upper part may be formed in the shape of an open hollow box, for example, a rectangular parallelepiped shape. In addition, a filter member 210, for example, a skimmer may be formed inside the Daetangdo 200 in the width direction of the Daetangdo 200. The filter member 210 may be formed such that the upper surface thereof is equal to or higher than the upper surface of the Daetang Island 200, and the lower surface is spaced apart from the bottom surface of the Daetang Island 200. In addition, in the Daetangdo 200, a molten iron outlet 230 for discharging the molten iron is formed in the front with respect to the moving direction of the melt based on the manure member 210, and a slag outlet 220 for discharging the slag in the rear. Can be formed.

Through such a configuration, the melt flowing into one side of the Daetangdo 200 may form a flow toward the other side of the Daetangdo 200. The melt may be separated into molten iron and slag due to a difference in specific gravity while moving along the Daetangdo 200. That is, the molten iron having a relatively high specific gravity may be disposed at the bottom, and the slag having a specific specific gravity less than that of the molten iron may be disposed above the molten iron. As the molten material moves along the Daetang Island 200 in this state, the molten iron is discharged through the manure member 210 and the bottom surface of the Daetang Island 200 to the molten iron outlet 230 by the manure member 210, The slag may be discharged through the slag discharge port 220.

Daetangdo 200 is formed to include a steel shell 200a forming the outer shape, a fire brick 200b built inside the iron shell 200a, and an irregular refractory material 200c formed on the top of the fire brick 200b Can be (see Fig. 6). At this time, when the irregular refractory material 200c is re-constructed, a drying device 300 is installed in the Daetangdo 200 to supply hot air to the inside of the Daetangdo 200 so that the newly constructed irregular refractory material is stored in the Daetangdo 200. Can be dried.

2 is an exploded perspective view schematically showing a drying apparatus according to an embodiment of the present invention, FIG. 3 is a cross-sectional view taken along line A-A' shown in FIG. 2, and FIG. 4 is a line B-B shown in FIG. ', and FIG. 5 is a perspective view schematically showing the structure of a hot air supply unit, and FIG. 6 is a view showing a state of drying a container (daengtangdo) using a drying apparatus according to an embodiment of the present invention, and FIG. 7 is a perspective view showing various modified examples of the guide member.

Referring to FIG. 2, the drying apparatus according to an embodiment of the present invention includes a cover member 310 capable of covering an upper portion of the Daetang Island 200, and a hot air supply unit for supplying hot air into the Daetang Island 200. It may include an induction member 330 provided under the cover member 310 to form a movement path of the hot air in the interior 320 and the Daetangdo 200. In addition, a measuring member 340 for measuring the internal temperature of the Daetangdo 200 and a control unit (not shown) capable of controlling the operation of the hot air supply unit 320 using the result measured by the measuring member 340 It may include.

The cover member 310 may be formed in a plate shape to cover the upper portion of the Daetangdo 200. The cover member 310 is formed to be seated and detachable on the top of the Daetangdo 200, and when the irregular refractory of the Daetangdo 200 is dried using hot air, the hot air supplied to the inside of the Daetangdo 200 is external. At the same time, it may play a role of maintaining the temperature inside the Daetangdo 200 while suppressing the leakage into the furnace. Accordingly, the cover member 310 may be formed of a material that can withstand high temperatures, for example, about 600 to 700°C. The cover member 310 may be formed to include an iron skin 310a and an insulating material layer 310b provided on a lower surface of the iron skin 310a.

The cover member 310 is a horizontal portion 310X capable of covering the upper portion of the Daetang Island 200, and downward direction from both sides of the horizontal portion 310X so as to cover at least a part of the side surface of the Daetang Island 200 It may include a bent portion 310Y bent by. The horizontal portion 310X may be formed to have a size sufficient to cover the width and length directions of the Daetangdo 200. Further, the bent portion 310Y is for suppressing the outflow of hot air into a space formed between the horizontal portion 310X and the upper surface of the Daetang Island 200 when hot air is supplied to the Daetang Island 200. Therefore, the bent portion 310Y is preferably formed to be at least long enough to close the space formed between the upper surface of the Daetangdo 200 and the lower surface of the horizontal portion 310X of the cover member 310. Here, the bent portion 310Y is described as being bent downward, but may be formed in various shapes capable of covering the side surface of the Daetangdo 200.

The cover member 310 may be disposed along the longitudinal direction of the Daetangdo 200 to cover the upper surface of the Daetangdo 200. At this time, the Daetangdo 200 has a length of about 20m and a width of about 3m. Accordingly, the cover member 310 may be formed as a single structure, but in this case, since the size of the cover member 310 is inevitably increased, it may be formed by dividing into a plurality of pieces to facilitate installation and storage. Hereinafter, an example in which the cover member 310 is divided into a plurality, for example, will be described. In this case, the cover member 310 may be provided with a support 318 protruding upwardly so that a plurality of cover members 310 can be stacked and stored in the vertical direction.

When the Daetangdo 200 is divided into three regions in the longitudinal direction, the cover member disposed at the center is referred to as the first cover member 310A, and the cover member disposed at the exit port 110 is the second cover member. (310B), a cover member disposed on the side of the chartered iron outlet 230 is referred to as a third cover member 310C.

When one hot air supply unit 320 is installed in the cover member 310, the first insertion port 314 for installing the hot air supply unit 320 and the temperature of the inside of the large bath 200 are controlled in the cover member 310. Second insertion holes 318a and 318b for installing the measuring member 340 for measuring may be formed. At this time, the first insertion hole 314 may be formed in the first cover member 310A, and the second insertion holes 318a and 318b are respectively formed in the second cover member 310B and the third cover member 310C. I can.

On the other hand, when the hot air supply is additionally installed, an insertion hole for installing the hot air supply may be additionally formed in at least one of the second cover member 310B and the third cover member 310C. In addition, the measuring member may be installed on the first cover member 310A including the second cover member 310B and the third cover member 310C.

In addition, the cover member 310 may be formed with exhaust vents 316a and 316b for discharging hot air and moisture supplied to the Daetang Island 200. At this time, a discharge pipe 350 protruding from the top of the cover member 310 may be connected to the vents 316a and 316b, and a control member 352 for controlling the discharge of hot air and moisture to the discharge pipe 350 May be provided. The adjusting member 352 may adjust the opening degree of the discharge pipe 350 to control the discharge of moisture and hot air.

And the cover member 310 may include an auxiliary cover 312. The auxiliary cover 312 may be connected to at least one side of the cover member 310 in the longitudinal direction so as to be rotatable in the vertical direction. One side of the Daetangdo 200 adjacent to the outlet 110 of the blast furnace 100 and the other side of the Daetangdo 200 adjacent to the chartered iron outlet 230 from which the molten iron is discharged may be formed to be open. Accordingly, when the cover member 310 is installed on the top of the Daetangdo 200 and hot air is supplied to the inside of the Daetangdo 200, the hot air may flow out through one side and the other side of the Daetangdo 200. Therefore, by installing the auxiliary cover 312 on one side or both sides of the cover member 310, the Daetangdo 200 may be closed.

Referring to Figure 5, the hot air supply unit 320 is a cover member 310, for example, a housing 322 that passes through the first insertion hole 314 of the first cover member 310A and is fixed to the first cover member 310A. And, a fuel gas supply pipe 324 connected to the housing 322 to supply fuel gas into the housing 322, and an air supply pipe 326 connected to the housing to supply air to the interior of the housing 322 ), a suction fan (not shown) for introducing air into the housing 322, a burner (not shown) and a hot water provided inside the housing 322 to produce hot air using fuel gas and air A hot air supply pipe 328 connected to a lower portion of the housing 322 to supply hot air into the interior of FIG. 200 may be included.

The housing 322 may provide a space for producing hot air therein. The housing 322 may be inserted from the top of the first cover member 310A through the top of the first insertion hole 314 to be fixedly installed on the first cover member 310A.

The fuel gas supply pipe 324 may be connected to the housing 322 to supply fuel gas into the housing 322. At this time, the fuel gas may be coke oven gas, liquefied natural gas (LNG), or the like.

The air supply pipe 326 may be connected to the housing 322 to supply air into the housing 322. A suction fan is provided in the air supply pipe 326 to introduce air into the housing 322 through the air supply pipe 326.

The fuel gas supply pipe 324 and the air supply pipe 326 may be connected to the upper side of the housing 322 exposed to the outside.

The burner is provided inside the housing 322 and burns the fuel gas supplied through the fuel gas supply pipe 324 to heat the air supplied through the air supply pipe 326 to produce hot air.

A hot air supply pipe 328 for supplying the hot air produced in the housing 322 into the Daetang Island 200 may be connected to a lower portion of the housing 322. The hot air supply pipe 328 is a vertical pipe 328a extending from the lower portion of the housing 322 toward the inner floor of the Daetang Island 200, and extending in a horizontal direction from the lower portion of the vertical pipe 328a, and can discharge hot air. It may include a horizontal pipe (328b) in which the hot air outlet (328c) is formed. Accordingly, the hot air supply pipe 328 may be formed in a shape similar to that of'ㅗ'. The horizontal pipe 328b may be arranged to uniformly supply hot air in the longitudinal direction of the Daetangdo 200. That is, the hot air outlet 328c formed in the horizontal pipe 328b may be disposed to face one side into which the molten material is introduced and the other side where the molten iron outlet 230 is formed. At this time, the end of the horizontal pipe 328b may be formed to be inclined downward so that the hot air supplied through the hot air supply pipe 328 can smoothly reach both ends of the Daetang Island 200.

The hot air supply unit 320 is not limited thereto and may be variously changed as long as it can generate and supply hot air into the Daetang Island 200.

And it may further include a control unit (not shown) for adjusting the flow rate of the fuel gas and air supplied to the housing 322. The control unit may adjust the flow rate of the fuel gas supplied to the housing 322 and the flow rate of air so as to dry the irregular refractory material in a preset temperature pattern. In addition, the flow rate of the fuel gas supplied to the housing 322 and the flow rate of air may be adjusted using the temperature measured by the measuring member 340 during the drying operation. In this case, the flow rate of air can be controlled by controlling the rotational speed of the suction fan, and the fuel gas can be controlled by controlling a flow regulator or valve installed in the fuel gas supply pipe 324.

On the other hand, in order to efficiently dry the irregular refractory material constructed over the entire interior of the Daetangdo 200, the horizontal pipe 328b may be disposed adjacent to the inner bottom surface of the Daetangdo 200. Alternatively, the end of the horizontal pipe 328b may be formed to be inclined downward so as to supply hot air toward the bottom surface of the Daetangdo 200.

Even if the arrangement position of the horizontal pipe (328b) is adjusted as described above, since the hot air forms an upward flow in the Daetang Island (200), the farther away from the location where the hot air is supplied, that is, both sides As it goes to the end, the time for the irregular refractory to contact is inevitably shortened. Accordingly, it is difficult to uniformly dry the irregular refractory as a whole because a temperature difference occurs in the center and both edge regions of the Daetangdo 200 supplied with hot air.

Therefore, in the present invention, by using the induction member 330, the hot air supplied into the Daetangdo 200 is guided in the longitudinal direction and the height direction of the Daetangdo 200 so that the irregular refractory material can be uniformly dried.

3 and 4, the guide member 330 may be disposed below the cover member 310 to be spaced apart from the cover member 310. The guide member 330 may be disposed to extend along the longitudinal direction of the cover member 310, and may be disposed to be spaced apart from the inner wall of the Daetangdo 200. Accordingly, a path capable of moving hot air may be formed between the guide member 330 and the bottom surface of the Daetang Island 200, and between the guide member 330 and the inner wall of the Daetang Island 200, for example, an inner wall. There may be a passage through which hot air can escape.

A third insertion port 332 for inserting the vertical pipe 328a of the hot air supply pipe 328 may be formed in the guide member 330. The vertical pipe 328a of the hot air supply pipe 328 is inserted into the third insertion port 332 and disposed to penetrate the guide member 330, and the horizontal pipe 328b is connected to the lower portion of the vertical pipe 328a to It may be disposed under the 330. Through this configuration, as shown in (a) of FIG. 6, the hot air generated in the housing 322 is supplied to the space between the guide member 330 and the bottom surface of the Daetang Island 200 to the length of the Daetang Island 200 You can move along the direction. In addition, as shown in (b) of FIG. 6, some of the hot air supplied between the induction member 330 and the bottom surface of the Daetangdo 200 is between the induction member 330 and the inner surface of the Daetangdo 200 You can exit through the passage that is formed. At this time, the irregular refractory installed on the bottom surface of the Daetangdo 200 is uniformly along the longitudinal direction of the Daetangdo 200 by the hot air moving between the guide member 330 and the bottom surface of the Daetangdo 200. Can be dried. In addition, the irregular refractory installed on the inner surface of the Daetangdo 200 is in contact with the hot air exiting through the passage formed between the induction member 330 and the inner surface of the Daetangdo 200, while the height direction of the Daetangdo 200 It can be dried more efficiently along the way.

For reference, although the drawing shows that the induction member 330 is supported by the vertical pipe 328a of the hot air supply pipe 328, it may be connected to the cover member 310 using a separate fixing member (not shown). .

Such an induction member 330 may be formed using a steel plate or the like capable of withstanding high temperatures.

The induction member 330 may be formed in a flat plate shape as shown in FIG. 2, but may be formed to have various shapes as shown in FIG. 7.

7A and 7B, the guide members 330a and 330b may be formed in a plate shape having a curvature in a direction crossing the longitudinal direction of the cover member 310 or Daetangdo 200. May be.

Alternatively, referring to FIGS. 7C and 7B, the guide members 330c and 330d may be formed to be bent so that both ends thereof are inclined upward or downward in the width direction.

As shown in (a) and (c) of FIG. 7, when both ends of the guide members 330a and 330c are formed to face the upper side, they fall between the guide members 330 and the inner wall of the Daetangdo 200. Since the amount of hot air that comes out slightly increases, the irregular refractory material installed on the inner wall of the Daetangdo 200 can be more effectively dried.

On the other hand, as shown in (b) and (d) of FIG. 7, when both ends of the guide members 330b and 330d are formed to face the lower side, the guide members 330b and 330d and the Daetangdo 200 ), there is an advantage of being able to effectively move the hot air along the longitudinal direction of the Daetangdo 200 because it exhibits an effect of wrapping the hot air supplied between the bottom surfaces of).

In addition, although not shown, an uneven structure may be formed on the bottom surface of the guide member 330 so that the hot air can move along the longitudinal direction of the Daetangdo 200. In addition, by forming both ends of the guide member 330 to be inclined downward with respect to the longitudinal direction of the guide member 330 to suppress the rise of hot air, it is possible to more effectively dry the irregular refractory material constructed in the Daetangdo 200. .

8 is a view showing a state of drying a container (daetangdo) using a drying apparatus according to a modified example of the present invention.

Referring to FIG. 8, a drying apparatus according to a modified example of the present invention may include a plurality of guide members 330 and 330 ′. The plurality of induction members 330 and 330 ′ are disposed to be spaced apart from each other in the upper and lower directions in the inside of the Daetangdo 200, so that the inner space of the Daetangdo 200 may be divided into a plurality in the height direction. In addition, horizontal portions 328 and 328' of the hot air supply pipe 328 may be disposed between the guide member 330 and the bottom surface of the Daetangdo 200 and between the guide member 330 and the guide member 330'. have. Accordingly, hot air may be supplied between the induction member 330 and the bottom surface of the Daetangdo 200 and between the induction member 330 and the induction member 330'.

When hot air is supplied in this way, the hot air supplied between the induction member 330 and the bottom surface of the Daetangdo 200 escapes between the induction member 330 and the inner wall of the Daetangdo 200, and the Daetangdo 200 It is possible to reduce the temperature difference of the hot air generated while rising along the inner wall of the. That is, the temperature may decrease as the hot air moves from the bottom surface of the Daetangdo 200 to the upper side, between the guide member 330 and the guide member 330', for example, an intermediate point in the height direction of the Daetangdo 200 The temperature of the hot air can be compensated by supplying the high-temperature hot air once again. Therefore, by reducing the temperature difference of the hot air generated along the height direction of the Daetangdo 200, it is possible to more efficiently dry the irregular refractory installed on the inner wall of the Daetangdo 200.

Hereinafter, a drying method according to an embodiment of the present invention will be described.

First, a drying device 300 is installed on the top of the Daetangdo 200 on which the new irregular refractory has been constructed. At this time, the cover member 310 of the drying device 300 is seated on the top of the Daetangdo 200 to close the top of the Daetangdo 200, and the outlet of the blast furnace 100 using the auxiliary cover 312 ( One side of the Daetangdo 200 adjacent to 110 and the other side of the Daetangdo 200 adjacent to the chartered iron outlet 230 may be closed.

When the drying device 300 is installed in the upper portion of the Daetangdo 200, the guide member 330 is disposed inside the Daetangdo 200, and a horizontal pipe of the hot air supply pipe 328 under the guide member 330 ( 328b) can be deployed.

Thereafter, the suction fan is operated to supply air into the housing 322, and the burner can be operated while supplying fuel gas into the housing 322 of the hot air supply unit 320. As the fuel gas is combusted, hot air may be produced by heating air supplied into the housing 322. The hot air may be supplied to the inside of the Daetangdo 200 through the hot air outlet 328c through the vertical pipe 328a and the horizontal pipe 328b of the hot air supply pipe 328. In this case, the hot air may be supplied between the induction member 330 and the bottom surface of the Daetangdo 200.

Some of the hot air supplied to the inside of the Daetangdo 200 may be guided along the longitudinal direction of the Daetangdo 200 between the guide member 330 and the bottom surface of the Daetangdo 200 to dry the irregular refractory. In addition, some of the hot air supplied to the inside of the Daetangdo 200 escapes between the induction member 330 and the inner surface of the Daetangdo 200 and is guided in the height direction of the Daetangdo 200 to dry the irregular refractory.

On the other hand, as shown in FIG. 8, in the case of using the induction member 330 stacked in the vertical direction, between the induction member 330 and the bottom surface of the Daetangdo 200, and the induction member 330 and the induction member Hot air may be supplied between 330'. At this time, some of the hot air supplied between the induction member 330 and the bottom surface of the Daetangdo 200 is guided or moved along the lengthwise direction of the Daetangdo 200, and the irregular refractory constructed on the bottom of the Daetangdo 200 Can be dried. And some of the hot air supplied between the induction member 330 and the bottom surface of the Daetangdo 200 escapes through the inner walls of the Daetangdo 200 and rises along the inner wall of the Daetangdo 200, You can dry the irregular refractories installed on the inner wall of

In addition, the hot air supplied between the induction member 300 and the induction member 300 ′ escapes through the inner wall of the induction member 300 ′ and the Daetang Island 200 and rises along the inner wall of the Daetang Island 200 While doing, it is possible to dry the irregular refractory material installed on the inner wall of the Daetangdo 200. In this case, the hot air that escapes between the induction member 300 ′ and the inner wall of the Daetang Island 200 may be combined with the hot air that escapes between the induction member 300 and the bottom surface of the Daetang Island 200. The hot air that escaped between the induction member 300 and the bottom surface of the Daetangdo 200 would have been supplied to the inside of the Daetangdo 200 in a state in contact with the irregular refractory installed on the bottom surface and the inner wall of the Daetangdo 200. The temperature is lower than before. Accordingly, when hot air is supplied to the induction member 300 and the induction member 300', the hot air that escapes between the induction member 300 and the bottom surface of the Daetangdo 200 and the induction member 300 and the induction member 300' As the hot air exiting from) is combined, the temperature of the hot air exiting between the induction member 300 and the bottom surface of the Daetangdo 200 may be compensated. Therefore, by reducing the temperature difference of the hot air generated along the height direction of the Daetangdo 200, it is possible to more efficiently dry the irregular refractory installed on the inner wall of the Daetangdo 200.

Although the technical idea of the present invention has been described in detail according to the above embodiment, it should be noted that the above embodiment is for the purpose of description and not limitation. In addition, those skilled in the art in the technical field of the present invention will be able to understand that various embodiments are possible within the scope of the spirit of the present invention.

100: blast furnace 110: exit
200: hot water degree 300: drying device
310: cover member 320: hot air supply unit
330: guide member 340: measuring member
350: exhaust pipe

Claims (14)

A cover member for covering the container whose upper part is open;
A hot air supply unit for supplying hot air into the container; And
Including; a guide member provided under the cover member to induce a moving direction of the hot air supplied from the hot air supply unit,
The hot air supply unit,
A housing installed on the cover member to pass through the cover member;
A fuel gas supply pipe connected to the housing to supply fuel gas into the housing;
An air supply pipe connected to the housing to supply air into the housing;
A suction fan for introducing air into the housing;
A burner provided inside the housing to produce hot air using fuel gas and air; And
A hot air supply pipe connected to a lower portion of the housing to supply hot air into the container;
Including,
The container is formed in a rectangular shape extending in one direction,
The hot air supply pipe includes a horizontal pipe for supplying hot air in a direction in which the container extends,
A plurality of the guide members are arranged to be spaced apart in the vertical direction,
The horizontal pipe is a drying apparatus disposed between the bottom of the container and the guide member and between the guide member and the guide member so as to guide hot air in a direction in which the container extends and a height direction of the container. The method according to claim 1,
The cover member,
A horizontal portion for covering an upper portion of the container; And
And a bent portion bent downward on both sides of the horizontal portion to cover at least a portion of a side surface of the container. The method according to claim 2,
The cover member.
And a vent for discharging the hot air supplied from the hot air supply unit to the outside,
A drying device connecting a discharge pipe capable of adjusting the discharge of hot air to the exhaust vent. delete delete The method of claim 3,
The guide member is formed in a flat plate shape, and is disposed to be spaced apart from the inner bottom surface of the container and the inner wall of the container. The method of claim 3,
The induction member is formed in a plate shape having a curvature in a direction crossing the longitudinal direction of the cover member. The method of claim 3,
The induction member is a drying device that is bent so that both ends are inclined upward or downward in the width direction. The method according to any one of claims 6 to 8,
For the direction in which the container is extended,
Drying device disposed so as to be inclined downward at both ends of the guide member. delete As a method of drying the inside of a container with an open top,
Closing the upper portion of the container;
Supplying hot air into the container; And
Including; inducing the hot air supplied to the inside of the container in the longitudinal direction and the height direction of the container,
The process of closing the upper part of the container,
And installing a plurality of guide members to be spaced apart in the vertical direction between the cover member for closing the upper part of the container and the bottom surface of the container,
The process of supplying the hot air,
And supplying hot air between the guide member and the bottom surface of the container and between the guide member and the guide member,
In the inducing process, the hot air supplied between the guide member and the bottom surface of the container rises along the inner wall of the container, and the hot air supplied between the guide member and the guide member rises along the inner wall of the container, Drying method for reducing the temperature difference in the height direction of the container. The method of claim 11,
Drying method wherein the guide member is spaced apart from the inner wall of the container. delete delete

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