KR910009505B1 - Hot gunning robot for furnace lining - Google Patents

Abstract

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Description

Repair device for spraying in the heat of a furnace fireproof wall

1 is an overall view in which a repair device sprayed by the hot of the present invention is installed next to an electric furnace.

2 is a cross-sectional view of the upper half of the nozzle support to be sprayed.

3 is a cross-sectional view of the lower half of the nozzle support to be sprayed.

4 is a cross-sectional view of the lower half of the nozzle support and the nozzle to be sprayed.

5 is a sectional view of a joint joint having a movable rectifying plate.

FIG. 6 is a cross-sectional view taken along the line E-E of FIG. 4 as a developed cross section of the Mouth Piece.

Fig. 7 is a developed cross-sectional view of the cap having tangential ejection holes.

8 is a cross-sectional view taken along the line F-F in FIG.

9 is a cross-sectional view taken along the line G-G in FIG.

10 is a cross-sectional view taken along the line H-H in FIG.

11 is a cross-sectional view taken along the line K-K of FIG.

12 is a supply system diagram of cooling air.

Fig. 13 is a schematic diagram of a repair device that is blown out in the hot place in a storage position.

14 is a cross-sectional view of the joint joint when the nozzle to be sprayed is leaned downward.

FIG. 15 is an explanatory diagram of a state of staying in a thick fireproof material which occurs when the base of the sprayed nozzle casing is not expanded.

FIG. 16 is an exploded view seen from the line M-M in FIG. 14. FIG.

Fig. 17 is an overall view of a repair device that is sprayed with heat in the prior art.

18 is a cross-sectional view of the rotary joint.

* Explanation of symbols for the main parts of the drawings

1: Hot water spraying device 2: Hot water nozzle

2A: Spouting nozzle base 2B, 2C: Spouting nozzle casing

3: electric furnace 3a: fireproof wall

4: transition body 5: transition arm

6: nozzle support which sprays 6A: drive chamber

6B: Air chamber 7: Parallelogram connector

8: hydraulic actuator 8a: piston rod

9: support pillar 9a: bend

10A, 10B: Connecting rod 11, 12, 13, 14: Support point

15: water cooling chamber 16: vertical transport pipe

17: Base Plate 18A, 18B: Bearing

29: joint seam 20: air transport pipe

21: water supply pipe 22: outer barrel

23, 27: spur gear 24: reducer

25: electric motor 26: electric shaft

28: joint joint 28A: the nozzle support portion to spray

29: introduction hole 30: lead hole

31, 32: rectification plate 33: hole

34: rectification plate 35: projection

36: rotary joint 37: supply pipe

38: detention 38a: injection hole

39: run away 40: connecting rod

41: cylindrical slider 42: hydraulic actuator

43: support 44: arm

45: shaking stop member 46: roller

47: roller holding part 48: disc

49: Liner 50: Connecting Rod

51: slider 52: connecting bar

53 outer ring 54 guide

55: annular groove 56: heat protection cover

57: Balancing Weight 58: Main Pipe

59: air pipe 60: air pipe

61: hole 62: piping

63: ejection hole 64: upper annular chamber

65: piping 66: ejection hole

67: lower ring 68: gap

69: tube to draw water 70: heat shield

71, 72: arrow 73: concave portion

74: fireproof material 75: attachment protrusion

76: supply pipe 80: hot water sprayer

81: support pillar 82: transition arm

83: spray nozzle support 84: spray nozzle

85: arrow 86: air transport pipe

87: joint seam 88: axis of rotation

89: axis of rotation 90: horizontal passage

91: vertical passage 92: up and down passage

The present invention relates to a repairing apparatus for ejecting thick fireproof materials by blowing nozzles moving up and down along the centerline of an electric furnace, and spraying them in hot heat continuously and automatically repairing the eroded fire wall of the eroded furnace body.

In a conventional electric furnace, scrap contained in the furnace is refined by an electric flame generated from an electrode. During melting, high temperature waste water or melted debris causes erosion of the walls of the furnace body or the fireproof walls of the furnace body bottom.

The damaged and worn fireproof wall is repaired by spraying the fireproof wall with the thick fireproof material under the high temperature state immediately after draining the water. In this operation, the worker inserts a spray nozzle attached to the long pole from the side entrance of the furnace body. At this time, the worker is forced to work hard in an extremely bad working environment with a high temperature.

In addition, repairing a wide range of fireproof walls is not easy and requires a high level of skill in spraying fireproof materials.

Referring to the drawings, the water retainer 80 that is sprayed in the existing hot heat is as shown in FIG.

This avoids directly manipulating a long pole that is difficult for an operator to handle.

The hot water repeller 80 which blows out in this hot part is the support pillar 81 installed next to the electric furnace 3, and the shift which moves up and down along this support pillar 81, and turns around it. An arm 82 and a spouting nozzle support 83 mounted on the front end of the transition arm 82 are formed. This blowing nozzle support 83 has a replaceable blowing nozzle 84 at its lower end, and moves up and down along the centerline in the furnace body.

Therefore, the spray nozzle 84 can move from the storage position shown by the dashed-dotted line to the advance position on the furnace body shown by the solid line, and also to the spraying position shown by the 2-dashed line. After turning the nozzle 84, which rotates as shown by the arrow 85, and sprays it in the desired direction, and then sprays the refractory material supplied from the air transport pipe 86 onto the fireproof wall 3a, the damaged and worn fireproof The wall 3a is repaired.

When repairing the fireproof wall at the bottom of the furnace body, the spray nozzle 84 is returned to the storage position, and is replaced with a spray nozzle having an angle suitable for spraying at the bottom of the furnace body.

According to such a hot water sprayer, the work in a high temperature state is performed mechanically and remotely, and the burden on an operator can be reduced.

In addition, since the nozzle support body 83 can move along the centerline of the bottom of the furnace body in a vertical posture, when even maintenance of the periphery of the furnace body is required, the nozzle nozzle 83 can be easily corresponded by rotating the nozzle nozzle 84. Will be.

However, the above-mentioned conventional repair machine has the following problems.

(1) When the electric furnace is large, the transition arm 82 becomes long, and in order to swing the transition arm around the furnace body, a large space must be secured in the building equipped with the electric furnace.

(2) In the storage position, the volume of the device increases and the occupied area becomes large, which causes a limitation in installing other auxiliary equipment.

(3) Since the nozzles to be sprayed must be replaced according to the parts to be repaired, the replacement work and time required for the work are required.

In order to solve the problem of replacing the blowing nozzle, for example, a well-known rotating joint 87 as shown in FIG. 18 may be used as a support for the blowing nozzle 84.

Rotating joint 87 is attached to the lower end of the spouting nozzle support 83 to cause the spouting nozzle 84 to be up and down.

The rotary joint 87 has a rotation axis 88, and a horizontal passage is formed in the rotation shaft 89. Thick refractory material flows from the vertical passage (91) to the horizontal passage (90) and the upper and lower passages (92).

However, since it passes through two sharp bent portions, the pressure loss becomes large, and the passage wall is severely worn by the refractory material.

In addition, thick fireproof material stagnates at the bent portion, and clogging of the passage is likely to occur.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a first object of the present invention is to store a small footprint in the vicinity of an electric furnace, and in operation, a nozzle to be sprayed along the centerline of the furnace body. It can also move up and down, and also pivot around its centerline, and remotely change the angles around the top and bottom of the spray nozzle when ejecting the refractory material, as a result of which it is also possible to continuously It is to be able to perform repairs quickly and automatically.

A second object of the present invention is to make it possible to reduce the thickened fireproof material stagnating in the nozzle to be sprayed or the wall of the passage.

The third object of the present invention is to uniformly mix the supplied water with the refractory material, to obtain a homogeneous thick fireproof material, to achieve heat dissipation of the vertical transport pipe, and to remove the thick fireproof material in the spray nozzle. To prevent clogging.

The fourth object of the present invention is to prevent shaking of the nozzle and the vertical conveying pipe during the operation of spraying the fireproof material, thereby to stabilize the spraying and repairing device during operation, and thus to accurately fix a predetermined portion of the fireproof wall. To repair.

A fifth object of the present invention is to prevent direct heat from reaching the drive section or bearing section of the vertical transport pipe.

EXAMPLE

Referring to the accompanying drawings, an embodiment of a repair device for spraying hot in the present invention is as follows.

The repair device 1 which blows out in the heat | fever of FIG. 1 is divided roughly, and the forwarding nozzle 2 which blows a fireproof material to the fireproof wall of a furnace body, and the forwarding nozzle 2 for advancing backwards in an electric furnace 3 It consists of the shifting body 4 and the nozzle support body 6 which was attached to the front end of the transition arm 5 which comprises a part of this shifting body 4.

The shifting body 4 moves the spraying nozzle 2 from the storage position to the maintenance position in the electric furnace 3, and consists of the parallelogram connecting mechanism 7 and the hydraulic actuator 8 which operates it.

The base of the hydraulic actuator 8 is mounted on the support column 9 which is installed upright near the electric furnace 3.

The parallelogram connecting mechanism 7 is composed of two connecting rods 10A and 10B, a bent portion 9a and a transition arm 5 formed at the front end of the support pillar 9.

The connecting rods 10A and 10B are formed on the transition arm 5 parallel to the supporting points 11, 12 and the bent portion 9a provided at both ends of the bent portion 9a of the support pillar 9, respectively. It is supported by the supporting points 13 and 14.

The connecting rod 10A is connected to the piston rod 8a so as to swing by expansion and contraction of the hydraulic actuator 8.

When the connecting rod 10A swings, the transition arm 5 of the parallelogram connecting mechanism 7 is displaced while maintaining the posture parallel to the inclined direction of the bent portion 9a of the support pillar 9.

At the front end of the transition arm 5, a spray nozzle support 6 is installed, which maintains a vertical posture.

This is, for example, a box structure shown in FIGS. 2 and 3, in which a water cooling chamber 15 is formed on the entire surface of the periphery in order to protect radiant heat received from the furnace body during repair. Inside the water cooling chamber 15, a vertical transport pipe 16 for supplying a refractory material in powder form is provided.

At the lower end of the vertical conveying pipe 16, as shown in Fig. 4, the nozzle 2 to be sprayed is installed so as to be freely up and down.

In the nozzle support 6 to be sprayed, a driving chamber 6A located at the upper side and an air chamber 6B located at the lower side are formed, and the nozzle support 6 sprayed by the base plate 17 is formed. The mesentery is separated.

The reason why the air chamber 6B is provided is to prevent the heat from the furnace body from reaching the drive section and the bearing section for rotating the long vertical transport pipe 16.

The vertical transport pipe 16 is connected to the air transport pipe 20 via the rotary joint 19 above the drive chamber 6A, and is vertically supported by two bearings 18A and 18B. Being supported.

The water supply pipe 21 and the outer cylinder shaft 22 are overlapped and enclosed in the vertical conveyance pipe 16, and the flat gear 23 is fixedly attached to the outer cylinder shaft 22. As shown in FIG.

Another spur gear 27 is mounted on the transmission shaft 26 driven by the power of the electric motor 25 via the reduction gear 24.

The flat cogwheel 27 and the above flat cogwheel 23 can be engaged to rotate the vertical transport pipe 16.

A joint joint 28 is formed at the lower end of the vertical transport tube 16, which smoothly leads into the nozzle 2 which sprays the refractory material.

In detail, at the lower end of the vertical conveying pipe 16, there is a cylindrical spraying nozzle support portion 28A which is connected through the introduction hole 29 shown in FIG.

A cylindrical nozzle base 2A is mounted on this nozzle support 18A, and the nozzle 2 can be up and down.

The joint joint 28 is composed of a spray nozzle support 28A and a spray base 2A.

The nozzle support portion 28A has a wide angled opening 30 for supplying the thick fireproof material to the nozzle 2, and the nozzle for spraying at any angle above and below the nozzle 2 to be sprayed. The state where (2) and the vertical conveyance pipe 16 pass through is maintained.

In the passage connected between the introduction hole 30 and the introduction hole 29, rectifying plates 31 and 32 having a substantially arcuate shape are installed. The casing 2B of the spray nozzle is opened to the same extent as the lead-out hole 30 in the vicinity of the nozzle base 2A to spray, and the thick fireproof material does not stagnate near the lower end of the rectifying plate 31. The nozzle casing 2B to be sprayed is swollen and opened.

2 A of nozzle bases which are spouted are provided with the hole 33 so that the nozzle 2 which spouts up and down irrespective of the vertical conveyance pipe 16 may be located up and down.

In the example of FIG. 5, the rectifying plate 34 is attached to the vicinity of the introduction hole 29 with a hinge. The lower end of the rectifying plate 34 is mounted on the projection 35 provided in the casing 2B of the nozzle to be sprayed so as to move as the nozzle 2 is pumped up and down.

The outer side of the vertical transportation pipe 16 is surrounded by a water supply pipe 21 for supplying water to the powdered refractory material.

The water supply pipe 21 is connected to a rotary joint 36 (see FIG. 2) provided in the drive chamber 6A.

The water supplied from the supply pipe 37 is supplied into the water supply pipe 21 even though the vertical transport pipe 16 is rotated. The water is installed at the lower end of the drain pipe 21 and is led into the vertical transport pipe 16 through the injection hole 38a of the cap 38. In the mold 38, as shown in FIG. 6, for example, there are four injection holes 38a. Each of these injection holes is directed toward the center or in the tangential direction as shown in FIG. In the latter case, the refractory material and the water are mixed in a vortex state, so that the quality of the thick refractory material can be further enhanced.

In the nozzle base 2A to be sprayed, the cutout portion 39 shown in FIG. 4 is integrated, and the connecting rod 40 is connected thereto. The connecting rod 40 is connected to a cylindrical slider 41 attached to the water supply pipe 21.

The arm 44 supported about the support point 43 by the hydraulic actuator 42 shown in FIG. 3 is rocked, and is provided on both sides of the vertical transport pipe 16 as shown in FIG. The swinging of the arm 44 causes the cylindrical slider 41 to move up and down. In the air chamber 6B, the shaking stop member 45 is attached to the vertical transport tube 16 in the air chamber 6B in order to prevent the shake of the vertical transport tube 16. As shown in FIG. 9, the rocking stop member 45 consists of four rollers 46, the roller holding part 47 and the disk 48 which support it.

The roller 46 rolls and moves on the liner 49 attached to the inner surface of the air chamber 6B. The vertical transport pipe 16 and the water supply pipe 21 are almost always in the air chamber 6B. It will be centrally located.

In order to avoid interference between the cylindrical slider 41 and the rocking stop member 45, two connecting rods 50 for up and down of the spray nozzle 2 are arranged as shown in FIG. As shown in FIG. 10, this connecting rod 50 is connected to the slider 51 mounted on the outer cylinder shaft 22. As shown in FIG. This slider 51 moves along the guide body 54 (refer FIG. 11) installed in the outer cylindrical shaft 22 by the outer ring 53 connected to the connecting rod 52 operating up and down. Displace.

The outer ring 53 is fitted into an annular groove 55 formed in the slider 51, and is free to the rotational direction of the vertical transport pipe 16. As shown in FIG.

When the connecting rod 52 moves up and down by swinging the arm 44, the slider 51 and the connecting rod 50 move up and down.

In accordance with the displacement of the cylindrical slider 41, the nozzle 2, which sprays through the connecting rod 40, is operated up and down around the nozzle support 28A that is sprayed.

In the circumferential portion of the joint seam 28, the heat protector 56 covers the nozzle support portion 28A that is always sprayed without inhibiting the up and down operation of the nozzle 28 sprayed. This heat shield protects the thick fireproof material from being radiated and solidified. In order to make the blowing nozzle 2 operate smoothly up and down, and to maintain the spray angle easily, the blowing nozzle support 28A is provided with a counterweight on the opposite side of the cut-out portion 39 described above. 57) is installed.

Cooling air is supplied to the nozzle support 6 to be sprayed to protect the inside of the drive chamber 6A from heat.

As shown in FIG. 12, the air pipe 59 is provided branching from the main pipe 58 in the transition arm 5. As shown in FIG. This air pipe 59 is branched so that air can be distributed and supplied to each of the upper and lower portions of the drive chamber 6A.

As shown in FIG. 10, the substrate 17 is provided with a hole 61 for penetrating the connecting rod 52. Air flows out of the drive chamber 6A through the hole 61 to the air chamber 6B, and the air in the drive chamber 6A is always clean. The air flowing out from the other air pipes 60 is directly sent into the air chamber 6B. As shown in FIG. 3, the air pipe 60 branches into two piping 62 and 65 in the water cooling chamber 15. As shown in FIG. The pipe 62 is connected to the upper annular chamber 64 having the ejection holes 63, and the other pipe 65 is connected to the lower annular chamber 67 having the plurality of ejection holes 66 arranged in a circumferential shape. It is.

The open hole in the lower part of the air chamber 6B is circular, and an annular clearance 68 is formed between the wall of the open hole and the cylindrical slider 41. Not only the air from the blowing hole 66 but also the air which entered the air chamber 6B from the drive chamber 6A is blown out from the clearance gap 68 below. The blown out air cools the periphery of the vertical transport pipe 16 exposed from the nozzle support 6 to be blown off. In order to smoothly distribute the air in the air chamber 6B, the inside of the air chamber 6B is preferably empty. Providing a bearing portion for the vertical transport pipe 16 in the air chamber 6B will hinder ventilation. Therefore, the shake stop member 45 having the above-described configuration having good air circulation is employed. The heat protector 70 is covered with a tube 69 which draws water for supplying water to the air tube 60 or the water cooling chamber 15 exposed from the nozzle support 6 to be sprayed.

When the water repellent maintenance device 1 is made to rest in order to operate the electric furnace 3, the sputtered nozzle support 6 is evacuated in a vertical position as shown in FIG.

First, the hydraulic actuator 8 is reduced so that the connecting rod 10A swings in the direction of the image display 71 around the support point 11. The parallelogram connecting mechanism 7 moves straight up the support pillar 9, and the long transition arm 5 is displaced into the upper space by one side of the furnace body. The support pillar 9 is rotated by the drive device (not shown), and the transition arm 5 is rotated, so that the spraying nozzle 2 moves away from the furnace body.

Since the occupied area at the time of storing the repairing apparatus 1 sprayed in hot is small, the space which installs auxiliary facilities in the vicinity of the electric furnace 3 is ensured.

During the refining process by putting scrap or the like into the electric furnace 3, the fireproof wall 3a is eroded. With the heat of fusion remaining immediately after the water is removed, the refractory material is sprayed on the damaged and worn areas of the furnace wall.

When it adheres to the fireproof wall 3a, moisture immediately evaporates and the fireproofing material hardens to repair the fireproof wall.

When the hydraulic actuator 8 is extended as shown in FIG. 1, the connecting rod 10A swings in the direction of the arrow 72, and the transition arm 5 is displaced in the direction of the electric furnace 3. The posture of the transition arm 5 is parallel to the bent portion 9a, and the nozzle support 6 to which the spouting body is always in a vertical posture moves up and down along the centerline of the furnace body. The installation interval is determined from the dimensions of the parallelogram connecting mechanism 7 and the support column 9 and the electric furnace 3.

For example, even when the distance L between the supporting points of the connecting rod 10A is 3.7 m and the nozzle support body 6 is moved up and down 1.2 m, the horizontal displacement of the nozzle support body 6 to be sprayed. Can be suppressed to 25 mm.

Therefore, even if the nozzle 2 to be blown out by rotating the vertical transport pipe 16 is rotated, the distance from the ejection hole to the wall of the furnace body becomes substantially the same, so that repair can be performed evenly.

When arranging the nozzle support 6 to be sprayed on the center line of the furnace body, the refractory material in powder form is supplied from the air transport pipe 20, and water is supplied from the supply pipe 37.

The refractory material is led to the lower end of the vertical transport pipe 16, the water is mixed in the refractory material through the detention 38 from the water supply pipe 21.

It is supplied to the nozzle 2 which blows through the draw-out hole 30 to the thick fireproof material by the pressure of 5 kg / cm <2> G, for example in the air transportation pipe 20. As shown in FIG. The thickened fireproof material is ejected from the ejection hole toward the fireproof wall 3a. At this time, the refractory material in the joint joint 28 is guided to the rectifying plates 31 and 32. When the hydraulic actuator 42 is reduced so that the connecting rod 52 is moved downward, the nozzle 2 to be sprayed as shown in FIG. 14 is leaned downward. Since the cylindrical slider 41 is displaced along the vertical conveying pipe 16, the swing of the arm 44 is completely converted to the displacement in the up and down direction, and is sprayed according to the amount of expansion and contraction of the hydraulic actuator 42 ( It is possible to obtain high and low angles of 2).

When the hydraulic actuator 42 is extended and the connecting rod 52 is moved upward, the nozzle 2 to be sprayed as shown in FIG. 4 is in a substantially horizontal position.

The spouting nozzle casing 2B is opened near the base 2A of the spouting nozzle to the same extent as the lead-out hole 30, and continuously expands at the end of the rectifying plate 31.

Therefore, the retention of the fireproof material 74 does not occur. As shown in FIG. 15, in the case of the nozzle casing 2C which is not expanded, the refractory material 74 will stay in the recessed part 73. FIG. In the example of FIG. 5, the movable rectifying plate 34 guides into the nozzle 2 which sprays a fireproof material smoothly. It is suppressed that the flow of the refractory material in the joint joint 28 is disturbed or a pressure rises. The fire resistant agent does not leak from the hole 33. As shown in FIG. 16, when the attachment protrusion 75 is provided in the nozzle support part 28A which blows out, and it fits in the nozzle base 2A which blows in, it forms a maze. The leak prevention effect prevents leakage of a fireproof material.

When turning the nozzle 2 to spray, the electric motor 25 is driven and the vertical conveyance pipe 16 turns and moves. The refractory material supplied from the air transport pipe 20 and the water supplied from the supply pipe 37 are supplied through the rotary joints 10 and 36, respectively. As the vertical transport tube 16 rotates, the nozzle 2 to be spun turns with the joint joint 28.

When the spraying nozzle 2 is lowered, the hydraulic actuator 8 is further extended.

As described above, the horizontal deviation caused by the nozzle support 6 to be sprayed up and down is small enough to be negligible compared to the diameter of the furnace body.

When the arm 44 is rotated by the hydraulic actuator 42 and the slider 51 is moved up and down along the guide body 54, the spray nozzle 2 is lowered from the circumference of the spray nozzle support 28A. It works up. When repairing the bottom of the furnace body, the nozzle 2 to be sprayed is directed almost downward as indicated by the broken line in FIG. By instructing the parts to be repaired in the control operation box not shown in the drawings, it is possible to repair them in a hot state continuously and automatically and quickly.

Along the parallelogram connecting mechanism 7 which displaces the nozzle support 6 to be sprayed, when the supply pipe 76 for supplying the refractory material is attached, the amount and the bending of the supply pipe 76 are reduced. Variation in the ejection amount is reduced. When cooling air is supplied from the main pipe 58, air is blown out from the air pipe 59 to the upper and lower portions of the drive chamber 6A, and flows out of the air chamber 6B through the holes 61 to drive the air. The interior of the chamber 6A is always cooled with fresh air. Air supplied from the air pipe 60 is blown out from the blowing holes 63 and 66 of the two annular chambers 64 and 67, respectively. Air is blown out of the nozzle support 6 which blows out from the annular clearance 68, and the air chamber 6B is also filled with fresh air.

The drive part or bearing part for the vertical conveying pipe 16 is protected from the heat of the furnace body. The shaking of the long vertical conveying pipe 16 in the air chamber 6B is prevented by the shaking stop member 45 and is permitted by the rotating roller 46 of the vertical conveying pipe 16.

After repairing the fireproof wall, the nozzle support body 6 to be sprayed is evacuated to the side of the furnace body as shown in FIG. 13, and the support column 9 is rotated by an electric motor (not shown), and the nozzle 2 to be sprayed is furnace body. Keep away from

In order to remove the refractory material adhering in the vertical conveying pipe 16, compressed air is flowed into the vertical conveying pipe 16 for several minutes, and the powdered refractory material is discharged from the spout of the nozzle 2 which sprays. After the air is flowed out, the washing water is supplied to the water supply pipe 21 and sprayed into the nozzle 2 which sprays the washing water for several minutes from the injection hole 38a. The thick fireproof material remaining in the joint joint 28 and the spray nozzle 2 is washed away. The time and effort for maintenance and cleaning related to fire resistant materials is reduced.

Claims (6)

The transition arm 5 on which the nozzle support 6 to be sprayed is mounted, the support pillar 9 which is installed in the vicinity of the electric furnace 3, and the support pillar 9 are installed, and the transition arm ( In the device for moving the nozzle support 6, which is composed of a parallelogram connecting mechanism 7 for displacing 5) in a constant direction, the shaking stop member 45 is interposed between the internal air chamber 6B. A vertical conveying tube 16 which rotates horizontally in the above-mentioned spouting nozzle support 6 and supplies fireproof material, and is installed on the outside of the vertical conveying tube 16, A water supply pipe 21 for supplying water to the fire resistant material, a cylindrical nozzle sprayer 28A which is connected to each other through the introduction hole 29 at the lower end of the vertical transport pipe 16, and the air is sprayed. With a nozzle base 2A spouted on the nozzle support 28A And a cylindrical slider 41 which moves along the vertical conveying pipe 16 to operate the blowing nozzle 2 up and down, which can be operated up and down. A repair device for spraying hot water in a furnace fireproof wall. 2. The nozzle nozzle casing 2B of the nozzle 2 is about the same as the outlet hole 30 of the nozzle support portion 28A that is sprayed near the nozzle base 2A. A repair device for spraying in the heat of a furnace fireproof wall, which is open to an area and is expanded. 3. The nozzle support portion 28A of claim 1, wherein the nozzle support portion 28A is provided with a wide-angled lead-out hole 30, and a rectifying plate is formed in a passage connected between the lead-out hole 30 and the inlet hole 29. 31), (32) is provided in the hot water of the furnace fireproof wall, characterized in that the repair device for spraying. 4. The rectifying plate (31) according to claim 3, wherein the rectifying plate (31) is mounted near the introduction hole (29) with a hinged rectifying plate (34), and the nozzles (2) to which the spraying paste moves together in the up and down operation The water repellent device which is sprayed in the heat of the furnace fireproof wall characterized by being so. 6. The driving chamber 6A and the air chamber 6B are formed in the nozzle support body 6, wherein the vertical transport pipe 16 is formed in the driving chamber 6A. The drive unit and the bearing unit are provided, and in the air chamber 6B, a shaking stop member 45 for preventing the vertical conveying pipe 16 from shaking is provided. Sticking repair device. The air chamber 6B is provided with an annular chamber 67 having a spouting hole 66 arranged in a circumferential shape. Repair device.

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