CN211947100U - Cooling wall with reinforced hot surface - Google Patents
Cooling wall with reinforced hot surface Download PDFInfo
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- CN211947100U CN211947100U CN202020580812.9U CN202020580812U CN211947100U CN 211947100 U CN211947100 U CN 211947100U CN 202020580812 U CN202020580812 U CN 202020580812U CN 211947100 U CN211947100 U CN 211947100U
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- stave
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Abstract
The utility model relates to a stave that hot side is reinforceed, including stave body and polylith brick steel, this internal cooling channel that is equipped with of stave, the hot side of stave body is equipped with a plurality of recesses, and the brick steel is installed in the recess, its characterized in that: each steel brick is connected with the cooling wall body or other steel bricks. The cooling wall with the strengthened hot surface can strengthen the positioning of the steel bricks, improve the heat conduction effect of the steel bricks, strengthen the slag adhering performance and the wear resistance of the hot surface of the cooling wall and prolong the service life of the cooling wall.
Description
Technical Field
The utility model relates to a smelting furnace body cooling device, in particular to a cooling wall with a strengthened hot surface.
Background
With the development of modern heat exchange technology, copper is being gradually expanded and applied to cooling equipment of high-temperature smelting furnaces due to its excellent heat-conducting property, so as to enhance the protection of the furnace body and prolong the service life of the furnace body. Such as copper cooling walls in iron-making blast furnaces, have been widely applied to the worst-environment high-temperature areas of the lower part of the furnace body, the furnace waist, the furnace belly and the like of the blast furnace, and play an important role in prolonging the service life of the blast furnace. However, because copper materials are soft and have poor wear resistance, when the fluctuation of the blast furnace conditions is severe, the slag crust is easy to fall off frequently in a high-temperature area, the hot surface of the cooling wall is worn when the slag crust falls off, and the service life of the cooling wall can be influenced by repeating the process for a long time. In view of the above problems, in recent years, there have been many optimization and improvement schemes in the industry, such as installing steel nails on the hot surface of the cooling wall, installing wear-resistant steel plates and nails on the hot surface of the cooling wall, installing groove-shaped wear-resistant plates in grooves (usually dovetail grooves) on the hot surface of the cooling wall, installing steel bricks in grooves (usually dovetail grooves) on the hot surface of the cooling wall, and the like, and it is desired to improve the slag fixation and wear resistance of the hot surface of the cooling wall to prolong the service life of the cooling wall. In the application practice of the above various schemes, the optimized scheme for installing the steel bricks in the dovetail groove of the cooling wall has better effect, the steel bricks can conduct heat rapidly through the contact part with the cooling wall, the slag adhering and wear-resisting performance of the cooling wall is enhanced, and the service life of the cooling wall is prolonged.
At present, the steel bricks are mainly installed in dovetail grooves of cooling walls in two modes of embedding and interference fit.
For example, the copper cooling stave with inlaid steel bricks disclosed in the utility model with the publication number CN202214370U adopts the inlaid method, the size of the steel brick root of the copper cooling stave is slightly smaller than the groove (preferably, dovetail groove), and after the steel brick is placed in the groove, the gap between the steel brick and the groove is filled with the refractory material with good heat conductivity to fix the steel brick. The embedding mode has the advantages that the steel bricks are convenient and flexible to install and can directly replace common refractory bricks to be used normally, but the steel bricks pre-embedded in the grooves are easy to loosen, shift and the like due to jolting or collision in the carrying or transferring process, the heat conduction effect of the steel bricks is influenced, and even the steel bricks can be washed and deviated when refractory materials are sprayed on the hot surface of the cooling wall to manufacture the lining, so that the cooling and slag hanging performance of the steel bricks can not meet the design requirement.
For another example, the cooling plate for a metallurgical furnace disclosed in patent publication No. CN102395688B is an interference fit. The size of the root of the steel brick of the cooling plate is slightly larger than the groove (preferably a dovetail groove) on the hot surface of the cooling wall, the steel brick can be placed in the groove after the cooling wall body is preheated and expanded, and the steel brick can be fixed due to the cooling shrinkage of the groove after the cooling wall body is cooled. The interference fit mode has the advantages that the steel bricks are tightly matched with the grooves and are not easy to slide. However, because the steel bricks and the grooves are designed to be in interference fit, if the steel bricks are too small or the grooves are too large, the interference fit cannot be realized, and the steel bricks can easily slide freely in the grooves; if the brick iron is too big or the recess undersize, will increase the installation degree of difficulty of brick iron, the condition of unable installation appears even, and this kind of interference fit mode is strict to brick iron and recess machining precision requirement, and the production degree of difficulty is big, and the brick iron needs preheat the stave body earlier before the installation in addition, and is with high costs, and is inefficient, delivery cycle length during batch production.
Disclosure of Invention
The utility model aims to solve the problem that a cooling wall that hot side was reinforceed is provided, and the location of brick steel can be reinforceed to this kind of cooling wall that hot side is reinforceed, improves the heat conduction effect of brick steel, strengthens hanging sediment performance and wear resistance of cooling wall hot side, prolongs the life of cooling wall.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a stave that hot side is reinforceed, includes stave body and polylith brick iron, this internal cooling channel that is equipped with of stave, the hot side of stave body is equipped with a plurality of recesses, and the brick iron is installed in the recess, its characterized in that: each steel brick is connected with the cooling wall body or other steel bricks.
Generally, the cooling stave body has a hot side facing the blast furnace chamber and a cold side facing away from the blast furnace chamber.
Generally, the size of the root of the steel brick is slightly smaller than that of the groove, the gap between the steel brick and the groove is filled with a refractory material with good heat conduction performance, and the root of the steel brick is fixedly installed in the corresponding groove, so that the steel brick can be firmly connected with the cooling wall body.
Preferably, the grooves are transversely extending strip-shaped grooves, and the grooves are sequentially arranged from top to bottom. More preferably, the strip-shaped groove is a dovetail groove.
Every brick and stave body lug connection of the aforesaid, perhaps every brick is connected with other bricks, the brick simple to operate of the stave that this kind of hot face was reinforceed, can reinforce the location of brick, it is not hard up or slide to reduce the brick to take place in the recess, it fixes on the stave body better to enable every brick, guarantee the design overall arrangement of brick on the stave body, be convenient for hang the sediment and form and stabilize the cinder and protect the stave, the heat conduction effect of brick has been improved, strengthen the hot face of stave and hang sediment performance and wear resistance, the life of extension stave.
In the first concrete scheme, each steel brick is connected with at least one adjacent steel brick through a connecting rod. All the steel bricks are usually connected into one piece by connecting rods. The connecting rods play a role in connecting and fixing the steel bricks, so that the steel bricks and the steel bricks are mutually restrained, the contact area between the steel bricks connected into a whole and the cooling wall body is increased, the generated friction force is increased, and the steel bricks are prevented from sliding relatively.
Preferably, two ends of the connecting rod are respectively welded on two adjacent steel bricks. And two ends of the connecting rod are respectively fixed on two adjacent steel bricks through welding. Typically the shape of the cross-section of the connecting rod may be square or circular.
Preferably, the two ends of each connecting rod are provided with external threads, the two adjacent steel bricks are respectively provided with a screw hole, and the two ends of each connecting rod are respectively in threaded connection with the screw holes in the corresponding steel bricks. And two ends of the connecting rod are respectively fixed on two adjacent steel bricks through threaded connection.
More preferably at least one steel brick is welded or bolted to the stave body. Through the arrangement, the steel bricks can be more firmly connected with the cooling wall body.
In a second specific scheme, the steel brick comprises a steel brick main body and a root part, the root part is positioned in the corresponding groove, and the steel brick main bodies of a plurality of adjacent steel bricks are integrally connected. The steel brick main body and the root are integrally cast. The brick main part body coupling of a plurality of bricks makes between brick and the brick pin to pin each other, and root on a plurality of bricks is mutually supported with a plurality of recesses on the stave body for area of contact between brick pin and the stave body increases, reduces the not hard up or slip of brick pin, reinforces the location of brick pin.
Preferably, the root of at least one of the steel bricks is welded or bolted with the stave body.
More preferably, the root of the steel brick is provided with a screw hole, the cooling wall body is provided with a positioning through hole, a fixing bolt is arranged in the positioning through hole, the tail end of the rod part of the fixing bolt is positioned in the screw hole, and the head of the fixing bolt and the root of the steel brick clamp the cooling wall body together.
More preferably, the edge of the steel brick main body is welded with the cooling wall body.
In a third specific scheme, each steel brick is welded with the cooling wall body respectively. And fixing the periphery of each steel brick on the cooling wall body by welding.
In a fourth specific scheme, each steel brick is respectively connected with the cooling wall body through bolts.
The cooling wall body can adopt a cast copper cooling wall, a drilled copper cooling wall or a copper-steel combined cooling wall (the hot surface is the combination of a copper plate and a steel plate).
The steel brick is made of heat-resistant and wear-resistant steel or stainless steel.
Compared with the prior art, the utility model, have following advantage:
the cooling wall with the strengthened hot surface can strengthen the positioning of the steel bricks, improve the heat conduction effect of the steel bricks, strengthen the slag adhering performance and the wear resistance of the hot surface of the cooling wall and prolong the service life of the cooling wall.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 4 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 5 of the present invention;
FIG. 6 is a left side view of FIG. 5;
fig. 7 is a schematic structural diagram of embodiment 6 of the present invention;
FIG. 8 is a left side view of FIG. 7;
fig. 9 is a schematic structural diagram of embodiment 7 of the present invention;
fig. 10 is a schematic structural diagram of embodiment 8 of the present invention;
fig. 11 is a schematic structural view of embodiment 9 of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1-2, the cooling stave with strengthened hot surface in the embodiment comprises a cooling stave body 1 and a plurality of steel bricks 2, wherein a cooling channel 11 is arranged in the cooling stave body 1, a plurality of grooves 13 are arranged on the hot surface 12 of the cooling stave body 1, and the steel bricks 2 are arranged in the grooves 13; each steel brick 2 is connected with the cooling wall body 1 or other steel bricks 2. The grooves 13 are transversely extending strip-shaped grooves, and the grooves 13 are sequentially arranged from top to bottom. The strip-shaped groove is a dovetail groove.
Generally, the cooling stave body 1 has a hot side 12 on a side facing the blast furnace chamber and a cold side on a side facing away from the blast furnace chamber.
Generally, the size of the root of the steel brick 2 is slightly smaller than that of the groove 13, the gap between the steel brick 2 and the groove 13 is filled with a refractory material with good heat conduction performance, and the root of the steel brick 2 is fixedly installed in the corresponding groove 13, so that the steel brick 2 can be more firmly connected with the cooling wall body 1.
Each steel brick 2 is connected with at least one adjacent steel brick 2 through a connecting rod 3. All the steel bricks 2 are usually connected into one piece by connecting rods 3. The connecting rod 3 plays a role in connecting and fixing the steel bricks 2, so that the steel bricks 2 and the steel bricks 2 are mutually restrained, the contact area between the steel bricks 2 and the cooling wall body 1 which are connected into a whole is increased, the generated friction force is increased, and the steel bricks are prevented from sliding relatively.
Two ends of the connecting rod 3 are respectively welded on the two adjacent steel bricks 2. And two ends of the connecting rod 3 are respectively fixed on the two adjacent steel bricks 2 by welding. The shape of the cross section of the connecting rod 3 may be generally square or circular.
The cooling wall body 1 can be a cast copper cooling wall, a drilled copper cooling wall or a copper-steel combined cooling wall (the hot surface is the combination of a copper plate and a steel plate).
The steel brick 2 is made of heat-resistant and wear-resistant steel or stainless steel.
Every brick 2 and 1 lug connection of cooling wall body above-mentioned, perhaps every brick 2 is connected with other brick 2, the brick 2 simple to operate of this kind of cooling wall that hot side is reinforceed, can strengthen the location of brick 2, it is not hard up or slide to reduce the brick 2 and take place in recess 13, enable every brick 2 to fix on cooling wall body 1 better, guarantee the design overall arrangement of brick 2 on cooling wall body 1, be convenient for hang the sediment and form and stabilize the cinder and come the protection cooling wall, the heat conduction effect of brick 2 has been improved, strengthen hanging sediment performance and the wear resistance of cooling wall hot side 12, the life of extension cooling wall.
Example 2
As shown in fig. 3, the cooling stave with strengthened hot surface in the present embodiment is different from that in embodiment 1 in that:
both ends of the connecting rod 3 are provided with external threads, the two adjacent steel bricks 2 are respectively provided with a screw hole 21, and both ends of the connecting rod 3 are respectively in threaded connection with the screw holes 21 on the corresponding steel bricks 2. The two ends of the connecting rod 3 are respectively fixed on the two adjacent steel bricks 2 through threaded connection.
Example 3
The difference between the hot-face strengthened stave in this embodiment and embodiment 1 is that:
at least one steel brick 2 is welded with the cooling wall body 1. Through the arrangement, the steel bricks 2 can be more firmly connected with the cooling wall body 1.
Example 4
As shown in fig. 4, the cooling stave with strengthened hot surface in the present embodiment is different from that in embodiment 1 in that:
at least one steel brick 2 is connected with the cooling wall body 1 through a fixing bolt 4. Through the arrangement, the steel bricks 2 can be more firmly connected with the cooling wall body 1.
Example 5
As shown in fig. 5 to 6, the stave with the hot-face strengthened cooling in the present embodiment differs from that in embodiment 1 in that:
the steel brick 2 comprises a steel brick main body 22 and a root part 23, the root part 23 is arranged in the corresponding groove 13, and the steel brick main bodies 22 of a plurality of adjacent steel bricks 2 are integrally connected. The steel brick main body 22 and the root portion 23 are integrally cast. The brick main part 22 an organic whole of a plurality of bricks 2 is connected, makes and draws together between brick 2 and the brick 2, and root 23 on a plurality of bricks 2 mutually supports with a plurality of recesses 13 on the stave body 1 for area of contact between brick 2 and the stave body 1 increases, reduces that brick 2 is not hard up or slides, reinforces the location of brick 2.
Example 6
As shown in fig. 7 to 8, the stave with the hot-face strengthened cooling in the present embodiment differs from embodiment 5 in that:
wherein the root 23 of at least one steel brick 2 is connected with the cooling wall body 1 through bolts. The root 23 of the steel brick 2 is provided with a screw hole 21, the cooling wall body 1 is provided with a positioning through hole 14, a fixing bolt 4 is arranged in the positioning through hole 14, the tail end of the rod part of the fixing bolt 4 is positioned in the screw hole 21, and the head part of the fixing bolt 4 and the root 23 of the steel brick 2 clamp the cooling wall body 1 together.
Example 7
As shown in fig. 9, the cooling stave with the hot-face strengthened in the present embodiment is different from embodiment 5 in that:
wherein the root 23 of at least one steel brick 2 is welded with the cooling stave body 1. The edge of the main body of the steel brick 2 is welded with the cooling wall body 1 to form a welding seam 5.
Example 8
As shown in fig. 10, the cooling stave with strengthened hot surface in the present embodiment is different from that in embodiment 1 in that:
each steel brick 2 is respectively welded with the cooling wall body 1. And fixing the periphery of each steel brick 2 on the cooling wall body 1 by welding and forming a welding seam 5.
Example 9
As shown in fig. 11, the cooling stave with strengthened hot surface in the present embodiment is different from that in embodiment 1 in that:
each steel brick 2 is respectively connected with the cooling wall body 1 through a bolt 4.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a stave that hot side is reinforceed, includes stave body and polylith brick iron, this internal cooling channel that is equipped with of stave, the hot side of stave body is equipped with a plurality of recesses, and the brick iron is installed in the recess, its characterized in that: each steel brick is connected with the cooling wall body or other steel bricks.
2. The hot-face enhanced stave of claim 1 wherein: the grooves are transversely extending strip-shaped grooves, and the grooves are sequentially arranged from top to bottom.
3. The hot-face enhanced stave of any one of claims 1-2 wherein: each steel brick is connected with at least one adjacent steel brick through a connecting rod.
4. The hot-face enhanced stave of claim 3 wherein:
two ends of the connecting rod are respectively welded on two adjacent steel bricks;
and at least one steel brick is welded or bolted with the cooling wall body.
5. The hot-face enhanced stave of claim 3 wherein:
external threads are arranged at two ends of each connecting rod, screw holes are formed in two adjacent steel bricks respectively, and two ends of each connecting rod are in threaded connection with the corresponding screw holes in the steel bricks respectively;
and at least one steel brick is welded or bolted with the cooling wall body.
6. The hot-face enhanced stave of any one of claims 1-2 wherein: the steel brick comprises a steel brick main body and a root part, the root part is positioned in the corresponding groove, and the steel brick main bodies of the adjacent steel bricks are integrally connected.
7. The hot-face enhanced stave of claim 6 wherein: wherein the root of at least one steel brick is welded or bolted with the cooling wall body.
8. The hot-face enhanced stave of claim 7 wherein:
the cooling wall body is provided with a cooling wall body, the cooling wall body is provided with a cooling hole, the cooling wall body is provided with a positioning through hole, a fixing bolt is arranged in the positioning through hole, the tail end of the rod part of the fixing bolt is positioned in the screw hole, and the head part of the fixing bolt and the root part of the steel brick clamp the cooling wall body together;
the edge of the steel brick main body is welded with the cooling wall body.
9. The hot-face enhanced stave of any one of claims 1-2 wherein: and each steel brick is respectively welded with the cooling wall body.
10. The hot-face enhanced stave of any one of claims 1-2 wherein: and each steel brick is respectively connected with the cooling wall body through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020580812.9U CN211947100U (en) | 2020-04-18 | 2020-04-18 | Cooling wall with reinforced hot surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020580812.9U CN211947100U (en) | 2020-04-18 | 2020-04-18 | Cooling wall with reinforced hot surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211947100U true CN211947100U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020580812.9U Active CN211947100U (en) | 2020-04-18 | 2020-04-18 | Cooling wall with reinforced hot surface |
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|---|---|
| CN (1) | CN211947100U (en) |
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2020
- 2020-04-18 CN CN202020580812.9U patent/CN211947100U/en active Active
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