WO2010013793A1

WO2010013793A1 - Method for constructing and repairing body of blast furnace

Info

Publication number: WO2010013793A1
Application number: PCT/JP2009/063625
Authority: WO
Inventors: 藤田昌男; 久米田隆弘
Original assignee: Ｊｆｅスチール株式会社
Priority date: 2008-07-31
Filing date: 2009-07-24
Publication date: 2010-02-04
Also published as: KR20110020313A; CN102112634B; JP2010053441A; KR101179806B1; EP2305840B1; JP5540568B2; EP2305840A4; BRPI0916610A2; CN102112634A; EP2305840A1

Abstract

Disclosed is a method for constructing and repairing the body of a blast furnace, wherein when the body of the furnace is constructed by assembling the new body of a blast furnace, or when the body of the blast furnace is repaired by stacking ring-shaped blocks for the new body after the old body of an established blast furnace is disassembled for assembling the body of the blast furnace, the connection sections or the cut sections of the adjacent ring-shaped blocks on the upper and lower stages are temporarily connected to each other with a connection device beforehand before the ring-shaped blocks are welded to each other or cut. Consequently, the ring-shaped block on the lower stage can be suspended and supported by the ring-shaped block on the upper stage.

Description

Of art

The present invention relates to the law of blast furnace (co s c o and f evam g) with blast furnace (b as ace body) in the state of g b ock. In particular, it relates to a law to enable blast furnace regulations and repairs in a short time.

Yearly installation of blast furnaces or installation or refurbishment in the state of blast furnace linking as disclosed in Patent No. 2

Bock gCons c on e hod) makes it possible to do it in a short time.

This is a method in which the space between the blast furnace nace She (nace o Secon and ace boom seco) is divided into a plurality of ring books. When assembling for the blast furnace installation, remove the hooks and carry them in order from the top to the bottom. On the other hand, the top rig book is raised up to the height of the upper cradle that is to be stacked under it, such as with a spot on the blast furnace. Then, after the ring is carried under the upper rig, the upper crawl is lowered and overlapped on the upper rig. Raise them together, and insert the next lower row of books, below, and repeat the same work. In this way, a plurality of rigbooks are connected in sequence, and finally the ringbook is fixed together with the blast furnace.

On the other hand, when disassembling d (n ng) at the blast furnace (. "" N ng), the above-mentioned ring book is moved up and down ge men)). Retjack, Wai which is a hydraulic jack By using a seta-hoji, etc., in reverse of the assembly work described above, the lower one is cut in order and the upper ring book is raised an. g. There is a method to carry it out of the machine using k).

If the equipment required to lift from the uppermost rig book to the lowermost ring is above the blast furnace, or if there is no reinforcing stage, There is also a method in which the ring book is lifted up by means of distributed lifting equipment by dispersing the lifting points on the blast furnace and / or on the pillars.

As a tabular technique for assembling a new, there is a method as shown in 4. In this method, first, as shown, the uppermost rig made at the factory, etc., is loaded into Song 5, while on the sol 5, the upper cradle is moved up and down using the lift Wa. After raising the upper B to the extent that it can be inserted, the Rig B is loaded onto the Saw 5 as shown in FIG. For the upper rack, lift up and down b.

Next, after these rigs are combined, the next rig C is entered in multiple W and Wb directions until the next rig C is entered. Next, carry the lower C on top of So5. Then, as shown in 3, this ring book C is raised to the height where the next ring dock can be inserted using another ascending W, and then the next lowest ring is moved up to 5 Then, on this floor, stack the ring books as shown in 4. The method is to install and repair the blast furnace by welding each hook sequentially.

In this way, the above-mentioned conventional method, which uses a number of Wa W Ws for rigging, can be applied not only to new preparation work but also to dismantling. As shown in Fig. 5, when disassembling, each of the ring books to C is supported by the respective lift Wa WW, and the new preparation is reversed in the reverse order. As shown in Fig. 7, cut from the lower box sequentially, and use, for lifting equipment The method of carrying it out of Song 5 is taken.

The patent discloses a method for shortening the time when connecting the upper and lower rigs, and patent 2 divides it into the second floor of the rigging question. There is a blast furnace bill to reduce time.

In the above-mentioned knowledge furnace installation and repair method, it took about 7 to 0 to disassemble the od nace body and assemble the new (ew nace body). Therefore, there is a need for a technique to shorten the length of the body to install and refurbish the blast furnace.

3 5362

2 3 7723

3 3 29

In the case of the ring ring of the current ring, for example, when dividing into a number of pieces, when cutting in a rig form in advance, it is not necessary to cut this completely. Leave (remaining) in

Depending on the minute, the lower rank is lowered. This is the way the upper rig bears the amount of rig that is located below the cut. When the separated hook is taken out from the top of the Song, the lower rig is placed on the saw 5 and then the above portion is cut, and the cut is inserted for the first time at this point. I was able to cut all of my ring clocks, and then I tried to pull out the separated foods from the Soviet Union.

However, if this amount is left, it will take as long as 5 minutes after cutting this portion, which is usually 4 g0 thick. . However, if this work is necessary to completely trim the detachable ring lock, the work time required this time.

On the other hand, the new preparation under the conventional method is performed by directly connecting the new upper and lower guck. First, after loading the uppermost book, which is, onto the song, the upper ringbook is topped up, and the upper ringbook that is connected to this is connected. Connect to the upper part of the uppermost block by connecting and connecting the connected parts. In this way, after stacking the upper and lower hooks to connect, complete welding is performed sequentially. However, only the good () is 40 ~ g larger,

35 60 long, so it took a long time to weld. However, this must be done in an environment where s aves are located.

Thus, the conventional construction method requires about 0 to 5 hours, and 30 to 50 times were required for the new construction work. However, this erection operation also requires upper and lower rigs and joint work at the time of erection. However, it is necessary to make the reliability within 5 degrees. For example, in order to show a 2 to g diameter rig with such accuracy, at least 3 6 is required. Then we spent some time between 0-2.

In addition, as described above, for example, as in Patent 3, the upper rig is lowered until it comes close to the lower gang, and the upper rig face is flat or Push in the direction and match with the lower rig. As shown in Fig. 8, this is a method that fits the ring book at the bottom by pushing the surface of the upper rig in the flat or the direction with a blade or the like. In this case, the moving fulcrum of the upper ring book moves up and down (3 a 3b).

3a 3b When the upper rig is pushed horizontally or in the direction as shown by arrow a under the state where it is lifted up at 3a 3b, the position of the rocker does not move toward the swinging side. Get up to the point. 8 When pressing the upper rig book B in the lower rig book B, push it in the horizontal direction (a) according to the amount. ,

The side that is pushed and moved from the position of 3 a 3b is lifted by swinging. On the other hand, as shown in 8b), the position of 3a, 3 is larger than the ngbuck, and the pushing side is higher. In this sort of work, when the amount is large, Therefore, ascending and descending work is necessary, and as described above, it takes 2 or 2 spaces in some cases.

Therefore, the total time required for disconnection and disconnection of the ring dock during disassembly and the new rig during assembly is between 50 and 80, which is half the time of the old and new assembly processes. Accounted for. Light

New furnace construction and disassembly and assembly by speeding up and disconnecting new rigs, rigging and disconnecting, and simplifying the process The purpose is to repair blast furnaces including

As a method to achieve the target, ・・ Leave the left part), and instead of using this method, use the separation or connection between the upper and lower ring locks as a convenience. I will provide a.

In the blast furnace repair, when the rig is cut in the direction of the rig, before each field is completely cut, the lower part, immediately, Preliminarily and connect the lower ring book and connect it temporarily. By temporarily connecting, the lower link than the disconnection is held by the upper ring book, the direction of the iron is completely disconnected, and the lower link is moved higher. Move away from one rig book. The separated rig is placed on the saw and cut out before being removed. This eliminates the need for a lot of equipment and allows the locks to be released more quickly than if the gas was cut off later.

In the future body construction, the remaining portion of the cuticle is cut and then the upper and lower rings are separated and the ring books are separated from each other. I was out. However, it is clear that this series of operations can be carried out immediately by only cutting (cutting) the above-mentioned work, so that the time required for the cutting work can be greatly shortened. On the other hand, in the new start-up for new furnaces and blast furnaces, the uppermost upper-level book is carried on the saw and the upper-stage ringbook is then lifted and lowered. Next, the next upper rig book to be connected is loaded onto the Song and stacked, and on this floor, the upper and lower rig books are connected. In fact, on this floor, do not connect the upper and lower books directly, but first connect the upper and lower rings through a link. Then, by connecting the ring packs, the rigs are installed on the sewage, and then the ring packs in those positions are turned on in turn, and all the ring Complete the work and preparation in the correct state.

The assembly method described above is effective in shortening the work time if it can be performed in parallel with the new constituents.

In addition, with the assembly method, it is possible to carry out the same length of steps in parallel, and with the conventional technique, this process, which is a critical process, is simplified. Half of the conventional standing process.

As is clear from the above explanation, the clarification is as follows.

・ The new blast furnace is assembled by installing the new goodies obtained by dividing several locations from the top, and stacking them up.

Or

After cutting the existing furnace at several points in the height direction, removing the multiple rigs obtained sequentially from the lower part and dismantling them, the new ring ring obtained by dividing the several points in the height direction is disassembled. The blast furnace is repaired by taking in the top ones in order and stacking them to prepare the blast furnace.

On the other hand, it is possible to connect to the upper part and the lower part of the Ningbuk interconnect or cut and connect before the ring-booking or cutting. Make sure that you have the lower gum book in the upper gum The repair of the blast furnace.

2 ・ In the freshening process, first connect the ring lock that will be located in the lower stage of the new glove to be loaded into the lower stage, and then continue the connection. The lower rig and the lower rig are used as a reference, and the upper and lower rings

The features described in and characterized by the following.

3 ・ In the body process, when dismantling, between the lower rig in the lower level and the upper gang located in the lower part, several points along the disconnection line are being cut or disconnected. Prior to installing these connections and keeping them connected, cut them completely along the disconnection, leaving no part, and then cut the ring packs in sequence. , Characterized by taking out the line or according to 2

And Osamu.

4 ・ The sashimi is the upper and lower rigs by disassembly, and the connecting part is a pair of racquets set along the direction of cutting. The corrections and corrections described in the three deviations characterized by using a variable with an attached connection.

5. The repair and repair described in 4 above, wherein a parallel link structure is formed with the racket connection.

6 ・ The items described in 5 and above, characterized by the use of fees.

7 ・ The item described in item 5 and the item described in item 5 above.

8 ・ The repair of the item described in 6 characterized by being a wire or a hose.

9 ・ A new ring of the blast furnace was assembled by installing the new ring from several places in the direction and stacking them in order from the top. In the renewal process, the upper ring and the lower ring are connected to each other by connecting the upper ring and the lower ring. Blast furnaces and repairs characterized by having in the rack.

0 ・ In the renewal process, first connect the ring pack that will be located in the upper stage to be newly loaded and the ring pack that will be located in the lower stage. The upper and lower rigs are stacked on top of each other, and the upper and lower gangs are connected to each other. .

After cutting the furnace at several points in the height direction, removing the obtained multiple rigs in order from the lower ones and disassembling them, and then dividing the several parts in the height direction to obtain new The blast furnace is repaired by taking the blast furnace from the top and stacking them in order.

In the assembly process, prior to or following the ring book, the upper and lower rigs are connected or connected together to connect the lower ring book to the upper Blast furnaces and repairs that are characterized by having.

2 ・ In the body process, when disassembling, between the lower rig and the upper ring book located at the lower position, several points along the disconnection are being cut or broken. Prior to installing these connections, connect the hooks, and then cut them completely along the disconnection without leaving a minute. As described in the above, it is a good idea to make an outing. Mysterious

The following effects can be expected by the method of constructing and refining the structure that has the structure described above.

() In the brewing process, when connecting between newcomers and rings, If it is a method of continuing between rigs with tools, as described below, the work can be simplified and can be reduced.

Under the new law, it was difficult to place the new rig in the lower ring lock because it was constrained by the rigor, but as a matter of fact, Since the distance between the doors is taken, and the work is performed using a variable that can move in the horizontal direction, the lifting and lowering equipment is not restricted, and the degree is improved. In addition, since the laying work can be performed in parallel with the ring book, it is excluded from the cuticle process and contributes to shortening the work schedule.

(2) In the body process, the old disconnection can be made in advance, so it is not necessary to cut off the remaining part as it is indispensable for disassembly and removal under the conventional technique. In fact, the edge can be cut only by cutting the connecting wire, so the dismantling process is simplified and the construction period can be shortened.

3) According to these results, it is clear that the large-scale furnace with an internal volume of 4003 can be dismantled and renewed in a period of 2 3. Of course, not only blast furnace repair, but also new blast furnace construction technology is effective. Simple explanation

Indicates the ring insertion piece at the time of assembly according to the conventional method.

Fig. 2 shows the child of the upper rig when assembled in accordance with the conventional method.

Fig. 3 shows the child of the lower step book when assembled according to the conventional method.

Fig. 4 shows the blast furnace child according to the conventional method. 5. According to the conventional construction method, dismantling and ring dock children are shown.

Figure 6 shows the child of the dismantling and lower ring dock according to the conventional method. 7 shows the child of the dismantling and upper rigging according to the conventional method.

Fig. 8 shows the child of the dismantling and ringock according to the conventional method.

Figure 9 shows how to dismantle and bring out a ring lock in accordance with the law.

FIG. 3 is a front view showing a general structure of O and.

Fig. 2 is a front view showing the structure of cutting according to the law.

2 shows the state of rigging in accordance with the law.

According to the other aspects of the law, 3 shows the Good birth.

Figure 4 shows the lower Guk child according to other aspects of the law.

5 shows the child of the ring book when it is fresh, in accordance with the law.

Indicates the child in the upper part of the book in accordance with the law.

Figure 7 shows how the upper and lower linking are continued using the concatenation in accordance with the law.

Figure 8 shows how to insert a lower-level book that shows other situations in accordance with the law.

Figure 9 shows the rigging of the rig book on the Son when it is new according to the law.

20 indicates the first step in assembling the gong book when renewed in accordance with other aspects of the law.

2 shows how the upper book is inserted when renewing in accordance with other aspects of the law.

22 shows how the lower ring book is inserted when renewing in accordance with other aspects of the law. Figure 23 shows how to enter the rig at the time of renewal in accordance with other aspects of the law.

24 shows how to renew in accordance with other aspects of the law.

25 shows how to renew in accordance with other aspects of the law.

Figure 26 shows the variable implementation (a) () used in law.

27 shows yet another state of the variable type used in the law. Issue

, 2 parts, 3, 3 a 3b jack

4, 4A-4, 5 so

6 roads, 7, 8, 9 steps, 0

Racket, 3 (variant),

, 3 wire clamp device,

5, 6 nuts, 7

, 20, 2 engineering department

To carry out Ming

Based on the rigging method applied to the Soviet road, we will first explain the blast furnace method. Note that the new blast furnace method is the same as the new blast furnace method. It should be noted that the following examples are not intended.

9 is an example of a body that shows the state where it is separated as a ring and starts to be dismantled.

It should be noted that, as the old furnace number rig, when dismantling and assembling, there are also books that are not rings, but these are generic names. Then, in the description, it will be referred to as a ring lock.

The issue number is (su po gCom), 2 is the upper part, and 3 is (ack) as the equipment of the installed rigbook. 4 is, and 4 to 4 are divided state rigs. Also, 5 is Song, a blast furnace, 6 is a road, and 5 is.

9 shows a state in which the rig 4 that has been cut out is carried out to 6. 0 indicates the structure of the ku. The 4 is the amount of the, which can be treated from the outside. 7 and 8 are cut and upper ring book and lower ring book, 9 is solid, and 0 is fireproof. This shows the cutting device with a resistance between steps 9, but it is not limited to cutting and this method. In other words, even if it is displaced, it can be cut and separated, and the remaining part is a cooling supply pipe that extends under the steel, the inner lining, and the separation.

From now on, when cutting as an old hook, pre-cut a large part of the circumference and leave it partially cut off, and carry the ring book on So 5

When the state was assigned to 5, the remaining portion of the cut was cut, and the hook was completely removed. Note that this cutting is a work that divides the product into pieces that can be easily removed. The example shown in 9 is 40% rigging. 4 4 is an example of dismantling, but it is preferable to dismantle as 30 to 50% depending on the size.

Shows the composition of the law. This figure shows the state where the upper and lower rigs are connected via connection 3. As shown in the figure, a pair of rackets at the lower end along the connecting portion are determined by welding in the upper ring 7 and the ring 8. Then, a connection 3a made of a wire, a hull, or the like is attached between the racks to form a connection 3. In this 3rd embodiment, the connection 3a uses a charge such as a charge, for example, a wire, and a variable type that allows one to move in the horizontal direction regardless of the upper or lower hook misalignment. The These 3 lower, 3 joints, including variable types) are retrofitted and are used to suspend the upper and lower rigs.

Cuts 7 and 8 into rigs according to 3.When cutting into the ring before ending or during cutting, cut most of the part and use it as part of it. You can install it at the same time as the consolidation, and you can do it in parallel with the cutting work.

As a result, after being cut into the upper and lower groups, the lower group is held by the upper group via the connection to the upper and lower rings. It becomes a state.

Conventionally, this has been dealt with by leaving only the length necessary to support the lower-level guck. And when putting out the ring cook, all the goodies are reduced using a jack, placed on the So 55, and then the upper ranks are cut off. This was the first time that we had a complete look at the lower ranks.

On the other hand, as shown in Fig. 2, when cutting between the rings 4 4B and 4 C, as shown in 2, these are being cut at the connection 3 or before being cut. For example, when cutting out Ngubook 4C, 3 Go down with the workbook 4 4 4C connected in 3 using the suspension jack 3 on the lower part and place the ring 4C on the carry 5 on the saw 5 and then By cutting 3 that connects 4B ring book C, the ring book 4 rig book 4C is completely separated for the first time at this point. Then, put this rig 4C and put it out through So 5 and 6 through 6.

In this way, in the case of the body, as shown in the figure, the racket 4 to 4C 4, the racket 2 on the 7th and 8th sides along the cutting line are set first, and below these In this way, the two racks that are attached in a single direction are connected and held by a connection 3 constituted by attaching a connection 3a with a wai (and tightening the nut with a nut 6). In this case, the rings 4 to 4C should be completely cut to leave the conventional ones. Therefore, according to the law, when leaving the company, there is no separation (cutting) work, only 3a separation work, and only simple work remains.

Next, when the ring book 4 comes out, the jack 3 is used together with the rig book 4 4 and the gear 4B is placed on the 5 of the saw 5 Cut off connection 3a for cutting with Good4. In this way, according to Ming's method, the edge cutting work between the ring locks can be done only by stroking several 3a mounted along the broken line in the direction. As a result, the working time can be greatly reduced.

In addition, the racket constituting the connection 3 and the nubbook (shown as 7 and 8) that are positioned up and down are still connected. It is cut to cut the gap. This 3 should be strong enough to lower and support the lower ring lock. ,,, And, are coupled with the nut 6, but when using a wai clamp (6, specially No. 200625563, etc.), as shown in Fig. 7, just connect the racquet between the rackets and wi Yes, it can be connected easily and disconnected easily and quickly. This 3 explained the example of cutting at the edge cutting between the nuts, but it can also be cut by removing the nut 6, and if cutting or removing displacement is selected depending on the work contents Yo.

The other way to do this is to use a hook that is distributed on the pole and / or on the pillar (such as a center ho jack of the type that is lifted to the wire, etc.). We will explain the method of raising the work in the example.

As shown in FIG. 3, this is an example in which 4 is divided into rigs 4 to 4 and disassembled. This example is different from 9 in that ring cook 4 4 4 divides the role of ring book 4 4 into jack 3a and ring 4C to jack 3. However, the other points are the same as shown in 9 for disconnection, disconnection, exit, etc. Below, I will explain more physically.

As shown in Fig. 4, when the lower rig 4C is released after the rig 4 with the link 3 connected between the rim 4B, The feature is that 4 4 and 4C are divided into jacks 3a 3 respectively. The hook 4C is supported by a jack 3 different from the hook 4 4B at this time. Therefore, the hook 4C is cut off as it is, and the hook 4 Put 4C on So 5 5 and put it out.

When the ring book 4 and the ring book 4B are separated from each other, first cut the most part when cutting, cutting, or cutting into a rig. Attach the connection 3 to the cut section and continue the connection. After that, the ring book 4 4B made by connection 3 and the ring 3 connected to the hook 4 4B are cut by the jack 3a. 4 It is possible to get out of the 4G by the completeness of the 4B. And the remaining Good 4A As you can see, it ’s down and out, and the body finishes.

Next, the actual situation at the time of renovating the law will be explained based on the example shown in 59. This method is also used for the installation of new furnaces. As shown in 5, this new preparation work is first carried onto the So 5 through 6 with the top ring lock 4 in the 5 position. Then, this rig 4 is up with the wire of jack 3a. Then, as shown in Fig. 6, the upper stage book 4B, which is positioned at the top of the upper stage book 4A,

Carry it onto Song 5 in 5 and place it in the space created when Ring Dock 4 is restored. Then, link 4 of the click 4 and the click 4B are continued in the connection 3.

An example of ring 4 upper rig 4 is shown in 7. In the example illustrated here, first, 7 is the rigbook 4, 8 is the upper rig 4, and the racket is determined. Between these rackets, the above-described items such as “Wai” or the like use 3 of the state in which the wire clamp 3 is used to continue the connection.

This 3 is about 0 to 7 in the direction. The same thing as the disassembly described above is used, but at the time of renewal, it is necessary to use So 5 so that the ring 4 upper ring ring 4B connection is connected to these rings. It is effective to use a variable type that has a structure in which one or both of them move horizontally.

The variable type 3 is located between the plackets 2 so that even if the rig pack is displaced, it is possible to continue moving in the horizontal direction, or allow horizontal movement. It is preferable to use something that can be done. For example, a wire that can withstand heavy weight is preferable, and the latter is preferable.

In addition, the variable type 3 is preferably constructed on the bracket side so that it can be handled in the case of horizontal movement, or a racket that can be worn or removed. Below is a pair of rackets It is preferable that the interval is between. However, since the connection 3 used in the body process is only for holding a book, it is not necessary to adjust the connection, so the variable type is unnecessary. Use is possible.

In this new preparation, connect. ・ It is preferable to have a second working section 2 between 7 and 8 of the lower rig book.

Then, as shown in FIGS. 8 and 19, insert the lower Gong book 4C 4 and place it on top. And rig 4C 4 and

In the same order as shown in 5, for example, use variable type 3 and hold.

In the previous discussion, the new 40% example has shown, but depending on the size of the blast furnace, it may be 3 or 50 or 60% or more. Can be done.

Then, in the same way as described above, insert the bottom rig 4 and continue with the variable 3 in the same way, then link the 4, 4 B, 4 and 4 rings together. At the same time, withdraw 5 and install it on top. First of all, after marking the bottom-stage click 4, stack it with the top ranks 4C to 4B 4 in order.

In the description below, the rigs 4C to 4A are listed together, and the bottom row of the book 4 is entered to identify the position. First, the bottom row of the rig. After the ring 4 is installed, the ring book 44 4C that has been raised may be stacked with the ring rings 4C to 4 4 in the upper layer while being stacked in sequence.

In addition, when a structure (including a fixed form) is built in the bottom ring 4, the ring dock 4 becomes extremely large, and when it is lifted, only the ring book 4 May generate cracks in the structure. This is the bottom row

Complete the position on Saw 5 by moving position 4 with a good move. And the bottom row of books 4 On the other hand, stacking is performed in order from the Ningbuk 4C, which is higher than the above-mentioned Ringbok 4 4 C.

In these operations, the top cover has several

While pushing in the horizontal direction or in 3a, tap At this time, for example, when the bookmarks occur in order from the ring book 4 (when the diameter of 2 to g rig exceeds 5), the positions are adjusted. Suspend the upper ring 4C

Use 3a to push in the horizontal direction or the lower direction. At this time, the variable type 3 can be moved horizontally between the upper rigs 44 and 4C, so this work can be performed simply and quickly. The same is true for the ring 4B 4C core and the 4-4B core.

The ring books 4 to 4 stacked in such a way are completely connected to each other. In other words, when the new ring is inserted, provisionally, each of the books 4 to 4 is stacked, and after the stacking process, the two minutes provided in the gap between them are continued to complete the preparation. . At this time, or 3 in this business, leave.

In addition to the fact that the ring book is placed in two parts of the blast furnace and / or distributed, the role of the ring book is raised and the blast furnace is repaired. Is a deed.

An example of this situation is shown in FIG. First, 2 indicates the state of the uppermost book 4 being entered and the capture state. As shown in 2, after the second book 4 is entered, the next upper ring 4 is entered. . In this state, the rig 4A and the upper rig 4B are connected via the connection 3 and are held together at 3a. 22 As shown in 2, the rig 4 supported by 3a and the upper ring book 4B are renewed, and in the meantime, the next lower book 4C is inserted. Supported by another suspension 3b.

Next, as shown in 23, the lower ring book 4C In the meantime, the lowermost package 4D is inserted. And, the above-mentioned book 4C and the book 4D are preferably continued through the variable type 3. The ng book 4C ng book 4 is held via the variable type 3 and can move in the horizontal direction. You can go quickly. However, when the ring 4C 4 is held by the same variable type 3 by the ng book 4, the shifting gang is easy to move in the horizontal direction. Ring book Lower level Can be easily combined with ring book

Also, if 5 is used without using ramp 6 shown in 23, as shown in 24, Song 5 can be adjusted to the same height. The rig 4 runs on 2 J and the 2 runs on the run 8. In addition, the lower ranks 4C and 3 are moved up, and the lower rank 4 is moved 9 and inserted. And, it is possible to continue to be connected to the Good 4C and the Good Book 4 via the variable type 3.

In the beginning, a new reactor may be installed in the following manner.

25 is an example when the number of Ngu books is 3 to 4A B 4. A variable 3 is performed between ring locks 4 and 4B. If the bottom rig 4 is not the same as the one to be fed in with 5 dots,

Send G-book 4C via 7. You can just move it over the 9 installed on the So 5 through the top placed, and you can remove it after installing the 4C. Instead of this, it is also possible to use an axta that can move the weight and adjust the mounting position.

Lower rank of the ring book 4C

As with previous lighting, press the rig 4B to the left or right. Can be done in a dynamic manner. In the configuration with 30% of the work, parallel work 4 can be placed in the 4th place of the work, which can be installed only by movement. After mounting the ring book 4B, the ring 4 is put on the rig book 4B. Therefore, the preparation is completed by fusing between the long books 4 4B and between the right books 4B 4C. In addition, the ring 3 and 4B continue with variable 3, but for safety, it is possible to use the jack 3C of the rig pack 4B indicated by a line. In this case, the load can be adjusted by parallel movement by placing the weight mainly on the 3 side.

In the configuration with four Gong books, the work of Guk 4 4 C, which was previously higher than the time 7 and 8 and Rig 4, was used to load the bricks in the Rook 4 It can be performed in parallel. As a result, in the past, it took 2-3 days for bricks to build, but according to Meiji, the cores and stacks above the lower rig 4C and each group Since 4C 4 can be welded, there is a margin in the construction period.

In addition, in the example of 30% of the 440 4C, the rig 4B can be installed immediately after the rig 4C.

By the way, 26 a is an example of the variable type 3 and has a pair of racks, a parallel connection structure by combining with 1 2 connection () 3 a, and 26 b) uses a wire as the connection Wai Clap

An example is shown. Reference numeral 26 shows an example of continuation by a type of wai clamp device in which the wire is held by the clamp racket and the wire is tightened.

Ring book 4 4 by various 3 including this variable type, 4 is just a temporary contact (), it is only to support the rig 4 B of the part from the connection part The key is not necessary. It is possible to end within these periods. This means that the construction period can be significantly reduced compared to the previous 20 years. 20 Traditionally, furnaces have been conducted continuously day and night with dozens of workers around the iron. On the other hand, the law improves the ability to do normal work, which no longer requires this work. In addition, if the solder and guts 4 are aligned with the 5 cores of the Song, then it will only need to be aligned with these cores one after another. To do.

The above explanation is based on the Goubou method with So 5 or 6, but in the case where Song 5 is high and it is difficult to install a ramp, as shown in 24, 7 is installed, 8 is laid on it, and 9 is also laid on Song 5, and a table 20 is placed on them.

You can use the methods 4 to 4 to get out and in and out In this way, by continuing the Rigbo body and new Gukbu, it is possible to significantly shorten the conventional blast furnace installation process with RigBok in / out. .

Top availability

In addition to the repair or construction of the blast furnace according to Ming and the above-mentioned rigging method, basically the same configuration can be used with repair technology in other technical fields.

Claims

Assemble a new blast furnace and build a blast furnace by sequentially collecting and stacking new rings obtained by dividing several locations of demand and direction.

Or

After cutting the existing furnace at several points in the height direction and removing and disassembling several of the resulting hooks sequentially from the lower one, a new ring obtained by dividing the several points in the height direction The blast furnace was repaired by taking the books in order from the top and stacking them to create a blast furnace.

In either the renewal process or the assembly process, by connecting or cutting or connecting the upper and lower ngbooks prior to rigging or cutting. The blast furnace is characterized by holding the lower rig in the upper rig. 2.In the renewal process, first connect the gbook that will be located in the lower stage of the rig that will be located in the upper stage to be newly loaded, and then connect it to the next. The upper and lower tiers are stacked on top of each other, and the upper and lower tiers are grouped together.

And amendments described in characterized in that 3.In the body process, when disassembling, several points along the disconnection between or below the lower link and the upper link positioned thereunder are being cut or prior to the disconnection. Stand up, attach the connection and keep these books connected, then cut completely along the disconnection that leaves a minute, cut the ring and cut the ring sequentially, Or the repairs described in 2 above. 4 The racks are connected to the upper and lower rings by disassembly, and the connecting parts are connected to the racks through a pair of rackets along the cutting direction. The corrections and repairs described in the three deviations characterized by using a variable with an attached connection. (5) and (4), wherein a parallel link structure is formed by racket connection. 6. ・ The item described in item 5 and the item of correction, characterized by the use of a fee. 7. Described in 5, characterized by consisting of

And training. 8 ・, described in 6 and characterized by being a wire or a hose. The new blast book obtained by dividing several locations in the 9 direction is taken in from the top and stacked, so that the blast furnace is assembled and the blast furnace is installed.

In the new process, prior to continuing the rig books, the upper and lower gangs are connected together to connect the lower gangs. Blast furnace repair and repair characterized by holding in the upper group. 0 ・ In the freshening process, the hook that will be located in the upper stage to be newly loaded is first connected to the hook that is located in the lower stage, and then the upper and lower stages are connected. Linguk The upper and lower part of the book

The corrections and corrections described in 9 above.・ After cutting the furnace at several points in the height direction, sequentially removing and disassembling the resulting multiple pieces from the lower ones, and then dividing the several points in the height direction to obtain new The blast furnace was repaired by taking in the stuff from the top and stacking up the blast furnace.

Prior to rigging or continuation in the assembly process, the upper and lower gangs are connected to each other by connecting them together so that the lower ling dock is held in the upper gang. Blast furnaces and repairs characterized by that. 2.In the body process, when disassembling, several points along the disconnection between the lower level lower class and the upper level class are located at or before the disconnection. Install the connection and keep these books in a continuous state.Next, cut them completely along the disconnection lines that do not leave a minute, and then disconnect the hooks in order. The description and modification of the description, characterized in that