KR19980026442U - Castable blocks for furnace post pipes - Google Patents

Abstract

The present invention is to form a cooling water flow path to prevent breakage by the heat inside the heating furnace which is a high temperature, respectively, and directly castable to block the heat transfer from the heating furnace to the skid pipe and the post pipe fixed to be connected to each other Instead of construction, it is made of semi-circular shape, and embossed and engraved on the upper and lower surfaces and the circumferential end faces respectively to enable stable operation of the heating furnace, and shorten the time during repair to improve productivity. A castable block for a low post pipe, which is mounted on a post pipe, is formed in a semicircular shape, and has a sloping protrusion 22 and a recess 23 in a circumferential direction so as to have an embossment and an intaglio in the longitudinal upper and lower ends thereof, respectively. Formed on the outer surface of the upper surface and the outer surface of the body 173 Characterized in that the relief and to have the concave to conform dolteok 24 and formed continuously in the groove 25 in the longitudinal direction.

Description

Castable blocks for furnace post pipes

The present invention is installed in the interior of the heating furnace is divided into a plurality of the outer surface side of the post pipe to support the skid pipe, etc. to move the material mounted on the upper part is easy to install and disassemble, and the caster to be firmly coupled to each other More specifically, it relates to a double block, and more particularly, is formed in a semicircle instead of directly castable to block heat transfer from a heating furnace, and is embossed and engraved on its upper and lower surfaces and its circumferential end faces. By forming each of the, it is possible to the stable operation of the furnace, and the time of repair is related to the castable block for the furnace post pipe to shorten the time to improve the productivity.

Furnace equipment used in the steel industry is used to maximize the ductility of steel before rolling the slab, bloom, billet, etc. It is a facility for heating to a high temperature, and consists of a preheating stand, a heating stand and a cracking stand.

The configuration for moving the material loaded in the furnace through the preheating zone, the heating zone, the cracking zone is roughly shown in Figure 1, which is a material charging opening in the interior of the furnace 120 having a chimney 110 The preheating stand 141, the heating stand 142, and the cracking stand 143 are set in turn from the side 131 to the material extraction port 132, and the work beam in the longitudinal direction is located at the inner lower portion of the heating furnace 120 ( 150 is installed in a plurality of rows so that the work beam 150 is moved in the longitudinal direction by the hydraulic cylinder 156, and the eccentric cam 152 is rotated at every predetermined portion of the lower side of the work beam 150. Is mounted to enable the eccentric cam 152 is rotated to allow the work beam 150 to move up and down a predetermined distance, at least one of the eccentric cam 152 is connected to the electric motor 154.

The movable post pipe 160 is fixed vertically upwards at a predetermined interval in the upper longitudinal direction of the working beam 150, and the movable skid pipe 170 is fixed to the upper end of the movable post pipe 160. Therefore, the movable skid pipe 170 can be moved up and down and left and right by the electric motor 154 and the hydraulic cylinder 156.

Meanwhile, as shown in FIG. 2, fixed skid pipes 172 are formed between the movable skid pipes 170, and the fixed skid pipes 172 are fixed to the lower side. A plurality of fixed post pipes 162 having a length are fixed, and the fixed post pipes 162 are fixed to the upper part of the furnace floor 180 constructed as a castable, unlike the mobile skid pipes 170, fixed skid pipes. Reference numeral 172 is a fixed configuration. Of course, the furnace floor 180 is constructed so as to block the upper portion where the material is moved, and the lower portion to which the electric motor 154 and the hydraulic cylinder 156 are mounted, and the furnace floor 180 includes the electric motor 154. ) And the moving post pipe 160 connected to the hydraulic cylinder 156 so that the moving skid pipe 170 can be moved up and down and back and forth, and do not interfere with the up and down and forward and backward movements of the moving post pipe 160. A hole 182 is formed to which extent the size is set.

That is, the material 190 is charged into the heating furnace 120 through the material charging hole 131, and the material 190 is provided on the upper surfaces of the skid pipes 170 and 172 installed in a plurality of rows in the longitudinal direction. When the preheating is completed at the proper temperature in the preheating stage 141 which is the first stage, the electric motor 154 is driven, and the eccentric cam 152 rotating by the driving of the electric motor 154 is moved skid pipe. At the same time to raise the 170 and at the same time operating the hydraulic cylinder 156 to move the work beam 150 in the material flow direction, the moving skid pipe 170 connected thereto moves little by little toward the heating table 142.

In this continuous operation, the material 190 may be transferred to the next process through the material extraction hole 132 through the preheating zone 141, the heating zone 142, and the cracking zone 143.

Meanwhile, in the connection configuration of the skid pipes 170 and 172 and the post pipes 160 and 162 installed in the heating furnace 120, as shown in FIG. The pipe-shaped steel bodies 163 and 173 each having a cooling water flow path P formed in the longitudinal direction at the center thereof to prevent breakage by heat are formed in a T-shape so that the internal cooling water flow paths P are connected to each other. It is fixed by welding or the like, and the skid button 174 is formed to protrude a predetermined length to the upper side of the skid body 173, the caster support anchor 164 on the outer surface portion of the body 163 (173). A plurality of fixings cover the heat insulating material 165 made of wool, etc., and in this state, the castable 166 is installed on the outer surface with a predetermined thickness.

Of course, when the castable 166 is installed, the upper end of the skid button 174 is constructed to protrude slightly outward.

However, the skid pipe and the post pipe by the integrated castable construction method require excessive construction time due to the complicated process for constructing the same. Moreover, the workability in the narrow heating furnace is very poor, which greatly increases the workload. In addition, since the castable must be removed during the maintenance work, the workability is very poor, and a large amount of dust is generated during the dismantling work, and thus has many problems.

Various techniques for solving such problems in the related art have been proposed, and a recent representative technique is a split castable block called a circle block 200 as shown in FIG. By combining with each other and stacked in a vertical direction to achieve a post pipe.

However, the circle block 200 is composed of only the concave hooks 212 formed on the upper and lower sides of both ends of the inner bar shell 210 to connect and couple each other in the circumferential direction, and the upper and lower blocks adjacent to each other. Since there is no means for connecting to each other, when the thermal deformation caused by the high temperature inside the heating furnace occurs in the latch 212 of the shell 210, the circle block 200 is opened, whereby the post The problem that the heat of the heating furnace penetrates inside the pipe and the skid pipe causes a large accident that damages the facility.

The present invention has been devised to solve the above-mentioned conventional problems, and the object thereof is divided into a plurality of parts on the outer surface side of a post pipe that is installed inside the heating furnace and supports a skid pipe or the like for moving the material on top. It is easy to install and dismantle and firmly combined with each other, so that stable operation of the furnace is possible, and the time for repair is shortened to provide a castable block for the furnace post pipe to improve productivity. have.

1 is a schematic configuration diagram showing a general heating furnace.

2 is a schematic configuration diagram showing the configuration of a skid pipe and a post pipe of a general heating furnace.

Figure 3a and b is a cross-sectional view showing the construction of the conventional skid pipe and post pipe.

4 is a schematic block diagram showing a conventional circle block;

(a) is a perspective view,

(b) is a state diagram coupled to each other in the circumferential direction,

(c) is a state mounted in the longitudinal direction.

Figure 5a and b is a cross-sectional view showing the construction of the skid pipe and post pipe using a castable block according to the present invention.

6 is a schematic block diagram showing a castable block according to the present invention,

(a) is a perspective view,

(b) is a state diagram coupled to each other in the circumferential direction,

(c) is the state which couple | bonded with each other in the longitudinal direction.

7 is a repair operation of the facility equipped with a castable block according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: Post pipe

20: castable block

22,24: Stone

23,25: groove

50: seat block

163: Post body

170: skid pipe

P: Cooling water flow path

As a technical configuration for achieving the above object, the present invention is to form a cooling water flow path for preventing the breakage by the heat inside the heating furnace is a high temperature, respectively, the skid pipe and the post pipe fixed to be connected to each other Branches in the furnace equipment, is mounted on the post pipe, is formed in a semi-circular shape, the upper and lower ends in the longitudinal direction are formed continuously successively in the circumferential direction, respectively, in the circumferential direction so as to have an embossed and engraved to match each other, In the outer surface of the upper surface and the outer surface of the body by providing a castable block for the heating post post pipe, characterized in that the successive projections and grooves are formed continuously in the longitudinal direction, respectively, to have an embossed and engraved to match each other All.

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

5 is a schematic configuration diagram illustrating a connection portion between a post pipe 10 and a skid pipe 170 equipped with a castable block for a furnace post pipe according to the present invention, which is located inside a furnace that is hot The pipe-shaped steel bodies 163 and 173 each having a cooling water flow path P formed therein in the longitudinal direction at the center to prevent damage by the T-shape are connected to each other so that the internal cooling water flow paths P are connected to each other. It is fixed to the upper side of the skid body 173, the skid button 174 is formed to protrude a predetermined length, the upper surface and the outer surface portion of the body 173 of the body 163 for the castable support A plurality of anchors 164 are fixed to cover the heat insulating material 165 made of wool or the like, and in this state, the configuration of the portion to be constructed at a predetermined thickness on the outer surface provided with the anchors 164 is provided. Similar to the conventional one (of course, Qualitatively, in the construction procedure, the castable 20 of the present invention is first mounted on the outer surface of the post body 163, and then the work is performed).

In the present invention, the castable block 20 is mounted on the outer surface of the post body 163 of the portion where the castable 166 is not constructed.

The castable block 20 is made of a semi-circular shape to have the same inner diameter as the outer diameter of the heat insulator 165, as shown in more detail in Figure 6, the thickness thereof so that the high heat of the heating furnace can be blocked to an appropriate degree Is set.

The castable block 20 is formed in the circumferential direction continuously formed in the circumferential direction of the stone jaw 22 to be embossed in the center of the upper surface, the groove 23 is to have an intaglio corresponding to the stone jaw 22 in the center of the lower surface ) Are formed continuously in the circumferential direction.

In addition, the castable block 20 is continuously formed in the longitudinal direction so as to have an embossed in the center at one side of the end of the circumferential side, and the other side of the end corresponding to the stepped 24 in the center Grooves 25 to have an intaglio are continuously formed in the longitudinal direction.

In order to mount such a castable block 20 to the outer surface portion of the heat insulating material 165 coated outside of the post body 163 and more strictly outside of the post body 163, first, a castable The block 20 is positioned on the outer surface of the heat insulator 165, and then the other castable blocks 20 are inserted into each other's grooves 25 so that the other jaw blocks 24 are fitted in the other grooves 25 in the circumferential direction of the heat insulator 165. Wrap the outside.

In order to wrap the longitudinal direction of the heat insulator 165 in the castable block 20 of the present invention, the same operation as that for wrapping the circumferential outer side is continuously performed on the upper side of the already mounted castable block 20. Of course, in this case, the jaw 22 of the castable body 20 should be fitted in the groove 23 of the adjacent castable body 20, so that the post body 163 by this operation is shown in FIG. As shown in the castable body 20, all of the circumferential direction and the longitudinal direction is easily and quickly enclosed.

The castable body 20 mounted in this way is firmly coupled to each other in an embossed and intaglio form with another castable body 20 proximate to the upper and lower portions, and is firmly coupled to each other in an embossed and engraved form with each other even in a circumferential direction. It is firmly coupled to the outer surface portion of the bladder body 20 so that the dropout is not easy.

Therefore, the construction time and the workload of the castable block of the present invention are significantly reduced as compared with the prior art, and the maintenance of the facility is easy because high temperature outdoor air does not penetrate the post body 163 by the firm coupling action of each other. .

Of course, when the castable block 20 of the present invention is mounted, the castable block fixing seat block 50 is mounted on an appropriate lower outer surface of the post body 163, such a seat block 50. In order to facilitate the installation of the castable block 20 by forming a stepping wall 52 corresponding to the groove 23 of the castable block 20, it will be avoided the description and illustration here, but According to the technical concept, the castable block 20 may be positioned at the lower side of the caster 22 differently from the above, and in this case, the seat block 50 may also match the protrusion 22 at the upper surface thereof. It is natural to form a groove (not shown).

On the other hand, when a plurality of castable blocks 20 of the present invention are installed in the longitudinal direction of the post pipe, the skid pipes are moved little by little in the clockwise or counterclockwise direction with respect to each other in the circumferential direction. It is preferable to distribute the load transmitted by the upper structure such as 170 uniformly in the circumferential direction of the castable block 20.

6b and 6c show the circumferential coupling and the up and down coupling state of the castable block 20, respectively, and FIGS. 7a to 7c are used for a predetermined time in a state in which the castable block 20 according to the present invention is constructed. After dismantling according to necessity, such as after maintenance, the castable which is installed only on one side of the upper part of the post pipe is removed using the tool 70, and then the castable body 20 is removed one by one. After all the work is completed, the new castable body 20 is simply and quickly mounted on the outer surface of the post body 163 in the circumferential and vertical directions in succession, and then the upper part of the post pipe and the skid are continued. The castable can be installed on the pipe.

As described above, according to the castable block for a heating post post pipe according to the present invention, it is mounted on the outside of the post pipe and has a semicircular shape instead of constructing the castable directly so as to block heat transfer from the heating furnace. Embossed and engraved on the circumferential end face respectively to facilitate easy and robust construction, making construction and dismantling work faster and easier than in the prior art, which is effective for maintenance and maintenance. It is more effective for continuous facilities by guaranteeing stable operation of the product, and it can be reused because it is not broken by disassembly and assembly, and it is excellent in utilization of resources. It is also easier to create a more comfortable working environment. It has an excellent effect on the practical use.

Claims (1)

In the furnace equipment having a skid pipe and a post pipe fixed to be connected to each other to form a cooling water flow path (P), respectively, located inside the furnace at high temperature to prevent damage by the heat, It is mounted on the post pipe, made of a semi-circular shape, and formed on the upper and lower ends in the longitudinal direction and continuously formed in the circumferential direction, respectively, in the circumferential end of the stone jaw 22 and the groove 23 to have an embossed and intaglio to match each other, Furnace post pipe, characterized in that the upper surface and the outer surface portion of the body 173 is formed continuously in the longitudinal direction, respectively, the stone jaw 24 and the groove 25 so as to have an embossed and engraved to match each other Castable block for dragon.