CN214270935U - Novel composite cooling wall - Google Patents
Novel composite cooling wall Download PDFInfo
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- CN214270935U CN214270935U CN202120338326.0U CN202120338326U CN214270935U CN 214270935 U CN214270935 U CN 214270935U CN 202120338326 U CN202120338326 U CN 202120338326U CN 214270935 U CN214270935 U CN 214270935U
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- stave
- cooling wall
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Abstract
The utility model discloses a novel compound stave, including the stave body, be equipped with an at least cooling channel in the stave body, its characterized in that: the novel composite cooling wall further comprises a plurality of metal ribs, each metal rib is fixedly mounted on the hot surface of the cooling wall body, the metal ribs are in close contact with the hot surface of the cooling wall body, and a gap between every two adjacent metal ribs forms a hot surface groove. This kind of novel compound stave is ground gradually at ordinary times as the hot face recess on the stave body, can directly demolish the change to the metal rib through in the stove, forms new hot face recess on making the hot face of copper stave, need not to dismantle the change with monoblock copper stave, can effectively practice thrift maintenance time and cost, reduces the time of blowing out to can prolong the life of stave.
Description
Technical Field
The utility model relates to a furnace body cooling device of an iron-making blast furnace, in particular to a novel composite cooling wall.
Background
In the existing blast furnace, the copper cooling wall is widely applied to the areas with severe furnace condition conditions, such as the lower part of the furnace body, the furnace waist, the furnace belly and the like of the blast furnace, due to the excellent heat conductivity of the copper cooling wall, so as to strengthen the protection of the furnace body and prolong the service life of the furnace body, and play an important role in prolonging the service life of the blast furnace. As an advanced blast furnace body cooling device, the copper cooling wall represents the development direction of the long service life of the blast furnace, is a consensus of the industry, and is also applied to the blast furnace at home and abroad on a large scale.
However, in the long-term use process of the copper cooling wall, after the refractory material on the hot surface of the copper cooling wall is gradually worn away and worn away along with the passage of time, although the copper cooling wall can be re-coated with slag in a short time by depending on the hot surface groove and the excellent heat conduction capability of the copper cooling wall to protect the copper cooling wall, due to the problems of design and use of a part of blast furnaces, when the blast furnace condition fluctuates violently, the slag skin on the hot surface of the copper cooling wall can be frequently dropped and rebuilt, so that the hot surface of the body of the copper cooling wall is repeatedly worn away and worn by the high-temperature furnace airflow and the furnace burden, and the hot surface groove on the copper cooling wall is gradually ground; the hot surface of the copper cooling wall is difficult to form slag adhering protection under the condition of no hot surface groove, and the production is easily influenced because the hot surface of the copper cooling wall is abraded and leaks water. Because the hot face recess and the copper cooling wall body formula structure as an organic whole of conventional copper cooling wall, can't prosthetic after the hot face recess is ground flat, consequently after the hot face recess wearing and tearing, can only shut down the stove and change the monoblock copper cooling wall, its maintenance replacement's time limit for a project is longer, with high costs, influences blast furnace production efficiency.
In addition, the copper material is a noble metal, so the overall cost of the copper cooling wall is high. When the copper cooling wall is manufactured, a part of thickness (about 30-50mm) is reserved on the hot surface of the copper cooling wall for processing a hot surface groove, the copper cooling wall body consumes more copper materials, the material utilization rate is low, and the processing cost is high.
Disclosure of Invention
The utility model aims to solve the technical problem that a novel composite cooling wall is provided, maintenance time and cost can effectively be practiced thrift to this kind of novel composite cooling wall to can prolong the life of cooling wall.
In order to solve the technical problems, the technical scheme is as follows:
the utility model provides a novel compound stave, includes the stave body, is equipped with at least one cooling channel in the stave body, its characterized in that: the novel composite cooling wall further comprises a plurality of metal ribs, each metal rib is fixedly mounted on the hot surface of the cooling wall body, the metal ribs are in close contact with the hot surface of the cooling wall body, and a gap between every two adjacent metal ribs forms a hot surface groove.
When the cooling wall body is used, one surface facing the blast furnace chamber is a hot surface, and the other surface back to the blast furnace chamber is a cold surface.
In the novel composite cooling wall, after the metal ribs are arranged on the hot surface of the cooling wall body, a hot surface groove can be formed between the two adjacent metal ribs and the hot surface of the cooling wall body, and refractory bricks or other refractory materials can be arranged in the hot surface groove or steel bricks can be arranged. Connect again after separately making through with stave body and metal rib, appear damaging after using a period when the metal rib, lead to hot face recess to be worn at ordinary times gradually, only need directly pull down the metal rib and the metal rib of quick replacement damage in the stove after the shut down, just can form new hot face recess, need not to pull down the change with the stave monoblock, can save time and cost by a wide margin, reduce the shut down time. Meanwhile, the hot-face groove can be formed without a mode of milling after the thickness of the cooling wall body is thickened, so that the copper material consumption of the cooling wall body can be greatly reduced (the copper material consumption can be reduced by 10-30%), and the material cost is saved; the metal ribs can be used as reinforcing ribs of the cooling wall body, so that the strength of the cooling wall body is improved, and the service life of the cooling wall body is prolonged.
The metal rib can be fixed on the cooling wall body in a bolt locking or welding mode.
In a preferable scheme, at least one first through hole and at least one first locking bolt corresponding to the first through hole are arranged on the metal rib, at least one first screw hole corresponding to the first locking bolt is arranged on the hot surface of the cooling wall body, the first locking bolt penetrates through the first through hole and is in threaded connection with the first screw hole, and the head of the first locking bolt and the hot surface of the cooling wall body clamp the metal rib together.
In another preferred scheme, the cooling wall body is provided with at least one second through hole and at least one second locking bolt corresponding to the second through hole, the metal rib is provided with at least one second screw hole corresponding to the second locking bolt, the second locking bolt penetrates through the second through hole and is in threaded connection with the second screw hole, and the head of the second locking bolt and the metal rib clamp the cooling wall body together.
In another preferred embodiment, the metal rib is welded to the hot surface of the stave body.
The metal ribs can be completely locked on the cooling wall body by bolts; the metal ribs can be welded on the cooling wall body; or part of the metal ribs can be welded on the hot surface of the cooling stave body, and the rest of the metal ribs are locked on the cooling stave body through bolts.
In a preferable scheme, the cross section of each metal rib is trapezoidal, rectangular or step-shaped. The cross-sectional shape of the metal rib may be other irregular structures. The hot face groove formed between the two adjacent metal ribs and the hot face of the cooling wall body can be correspondingly a dovetail groove (the cross section is trapezoidal, and the width of the notch is less than the width of the groove bottom), a square groove (the cross section is rectangular) or a T-shaped groove, or a strip-shaped groove with the cross section in other shapes.
In the preferred scheme, all the metal ribs are fixedly arranged on the hot surface of the cooling wall body from top to bottom in sequence. The metal ribs are generally transversely disposed.
Preferably, the metal ribs are parallel to each other. Each metal rib can also be nonparallel each other, forms the big hot face recess of other end of opening one end between two adjacent metal ribs and the hot face of stave body.
The spacing between adjacent metal ribs may or may not be equal.
In a preferred embodiment, the metal rib is of an integral structure. The material of the metal rib can be carbon steel, stainless steel or other alloy steel, and pure copper or copper alloy can also be adopted.
In another preferred scheme, the metal rib is formed by splicing a plurality of metal rib sections. The metal rib sections of each section can be made of different metal materials to form staggered and discontinuous composite groove ribs. The metal rib sections of each section can also be made of the same metal material. More preferably, gaps are formed between two adjacent metal rib sections in one metal rib, and the gaps naturally form stress grooves, so that the deformation of the cooling wall is more uniform, and the influence on the smooth running of the blast furnace is reduced. The material of the metal rib section can be carbon steel, stainless steel or other alloy steel, and pure copper or copper alloy can also be adopted.
In the preferred scheme, be equipped with many cooling channel in the stave body, these many cooling channel are sharp cooling channel, and each cooling channel is parallel to each other, and cooling channel's both ends are connected with business turn over water pipe respectively, and business turn over water pipe fixed mounting is on the cold side of stave body. Typically, the cooling channels are not in communication with each other. A cooling water path is formed by a cooling channel and water inlet and outlet pipes at two ends, so that the cooling wall is provided with a plurality of groups of cooling water paths side by side. During operation, cooling fluid enters into the cooling passage from the inlet and outlet pipe at one end, and flows through the cooling passage and then flows out from the inlet and outlet pipe at the other end, so that heat on the cooling wall body can be effectively taken away. The cooling channel can be obtained by drilling or other machining methods to remove materials on the cooling wall body (after drilling, the end part of the cooling channel is welded and blocked by an end plug, and a third through hole for connecting with the water inlet pipe and the water outlet pipe is machined at the corresponding position on the cold surface). The cross section of the cooling channel can be a round hole, a flat hole, an elliptical hole or a composite hole. The composite hole is composed of more than two circular holes which are communicated with each other (usually, the circular holes in the composite hole are parallel to each other), the circles where two adjacent circular holes are located in the composite hole are intersected, and the distance between the centers of the two adjacent circular holes is smaller than the sum of the radiuses of the two circular holes.
The cooling wall body can be a straight plate or an arc-shaped plate, and correspondingly, the hot surface of the cooling wall body is a plane or an arc surface.
The stave body may be entirely made of pure copper or a copper alloy, and the stave body is generally made of a forged copper plate or a rolled copper plate.
The cooling wall body can also be composed of a copper plate and a cold surface reinforcing plate, and the inner surface of the cold surface reinforcing plate is connected with the outer surface of the copper plate. The outer surface of the cold-side reinforcing plate forms the cold side of the stave body, and the inner surface of the copper plate forms the hot side of the stave body. The copper plate can be made of pure copper or copper alloy, and the cold-side reinforcing plate can be a steel plate or a cast iron plate. The cold surface reinforcing plate can enhance the mechanical strength of the whole cooling wall body and improve the deformation resistance of the cooling wall. The connection between the cold-side reinforcing plate and the copper plate can be intermolecular bonding connection (such as casting, forging, welding and the like), non-intermolecular bonding connection (such as mechanical connection and bonding) or the combination of the two connection processes.
The beneficial effects of the utility model reside in that: this kind of novel compound stave is ground gradually at ordinary times as the hot face recess on the stave body, can directly demolish the change to the metal rib through in the stove, forms new hot face recess on making the hot face of copper stave, need not to dismantle the change with monoblock copper stave, can effectively practice thrift maintenance time and cost, reduces the time of blowing out to can prolong the life of stave.
Drawings
FIG. 1 is a side view of a novel composite stave of embodiment 1 of the present invention;
FIG. 2 is a sectional view of a portion of the cooling stave body where the metal rib is connected to the cooling stave body according to embodiment 1 of the present invention;
FIG. 3 is a sectional view of the connection part of the metal rib and the cooling stave body in embodiment 2 of the present invention;
fig. 4 is a sectional view of a portion of the cooling stave body where the metal rib is connected according to embodiment 3 of the present invention;
fig. 5 is a front view of the novel composite cooling wall in embodiment 4 of the present invention;
fig. 6 is a side view of the novel composite stave of embodiment 5 of the present invention.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
example 1
The novel composite cooling wall shown in fig. 1-2 comprises a cooling wall body 1 and a plurality of metal ribs 2, wherein a plurality of cooling channels 101 are arranged in the cooling wall body 1, each cooling channel 101 is a linear cooling channel 101, the cooling channels 101 are parallel to each other, two ends of each cooling channel 101 are respectively connected with a water inlet and outlet pipe 3, and the water inlet and outlet pipes 3 are fixedly arranged on a cold surface of the cooling wall body 1; each metal rib 2 is fixedly arranged on the hot surface of the cooling wall body 1, the metal ribs 2 are tightly contacted with the hot surface of the cooling wall body 1, and a gap between every two adjacent metal ribs 2 forms a hot surface groove 4.
When the cooling wall body 1 is used, one surface facing the blast furnace cavity is a hot surface, and the other surface back to the blast furnace cavity is a cold surface.
In the novel composite cooling wall, after the metal ribs 2 are arranged on the hot surface of the cooling wall body 1, a hot surface groove 4 can be formed between the two adjacent metal ribs 2 and the hot surface of the cooling wall body 1, and refractory bricks or other refractory materials can be arranged in the hot surface groove 4 or steel bricks can be arranged. Connect after separately making through with stave body 1 and metal rib 2, appear damaging after using a period when metal rib 2, lead to hot face recess 4 to be ground gradually at ordinary times, only need directly pull down metal rib 2 in the stove behind the shut down and metal rib 2 of quick replacement damage, just can form new hot face recess 4, need not to pull down the change with the stave monoblock, can save time and cost by a wide margin, reduce the shut down time. Meanwhile, the hot-face groove 4 can be formed without milling after the thickness of the cooling wall body 1 is increased, so that the copper material consumption of the cooling wall body 1 can be greatly reduced (the copper material consumption can be reduced by 10-30%), and the material cost is saved; the metal ribs 2 can be used as reinforcing ribs of the cooling stave body 1, so that the strength of the cooling stave body 1 is improved, and the service life of the cooling stave body 1 is prolonged.
The cooling passages 101 are not communicated with each other. A cooling channel 101 and water inlet and outlet pipes 3 at both ends form a cooling water path, so that the cooling wall has a plurality of groups of cooling water paths side by side. During operation, cooling fluid enters into cooling channel 101 from the business turn over water pipe 3 of one end, and cooling fluid flows through behind cooling channel 101 and flows out from the business turn over water pipe 3 of the other end, can effectively take away the heat on the stave body 1.
The metal rib 2 is provided with a plurality of first through holes 201 and a plurality of first locking bolts 202, the hot surface of the cooling stave body 1 is provided with a plurality of first screw holes 102 corresponding to the first locking bolts 202, the first locking bolts 202 penetrate through the first through holes 201 and are in threaded connection with the first screw holes 102, and the head parts of the first locking bolts 202 and the hot surface of the cooling stave body 1 clamp the metal rib 2 together. Each metal rib 2 has a trapezoidal cross-sectional shape. The hot surface groove 4 formed between the two adjacent metal ribs 2 and the hot surface of the cooling wall body 1 is a dovetail groove. Each metal rib 2 is fixedly arranged on the hot surface of the cooling wall body 1 from top to bottom in sequence. The metal ribs 2 are of an integral structure, the metal ribs 2 are transversely arranged, and the metal ribs 2 are parallel to each other; the spacing between adjacent metal ribs 2 is equal; the material of the metal rib 2 is carbon steel.
The stave body 1 is a straight plate. The cooling stave body 1 is entirely made of pure copper.
Example 2
This example differs from example 1 in that: as shown in fig. 3, the stave body 1 is provided with a plurality of second through holes 103 and a plurality of second locking bolts 104, the metal rib 2 is provided with a plurality of second screw holes 203 corresponding to the second locking bolts 104, the second locking bolts 104 pass through the second through holes 103 and are in threaded connection with the second screw holes 203, and the heads of the second locking bolts 104 and the metal rib 2 clamp the stave body 1 together.
Example 3
This example differs from example 1 in that: as shown in fig. 4, the metal rib 2 is welded to the hot surface of the stave body 1.
Example 4
This example differs from example 1 in that: as shown in fig. 5, the metal rib 2 is formed by splicing a plurality of metal rib sections 204.
Example 5
This example differs from example 1 in that: as shown in FIG. 6, the stave body 1 ' is composed of a copper plate 105 ' and a cold-side reinforcing plate 106 ', and the inner surface of the cold-side reinforcing plate 106 ' is joined to the outer surface of the copper plate 105 '. The outer surface of the cold-side reinforcing plate 106 'constitutes the cold side of the stave body 1', and the inner surface of the copper plate 105 'constitutes the hot side of the stave body 1'. The copper plate 105 'is made of pure copper, and the cold-side reinforcing plate 106' is made of steel plate. The cold-side reinforcing plate 106 'can enhance the mechanical strength of the entire stave body 1' and improve the deformation resistance of the stave.
Claims (10)
1. The utility model provides a novel compound stave, includes the stave body, is equipped with at least one cooling channel in the stave body, its characterized in that: the novel composite cooling wall further comprises a plurality of metal ribs, each metal rib is fixedly mounted on the hot surface of the cooling wall body, the metal ribs are in close contact with the hot surface of the cooling wall body, and a gap between every two adjacent metal ribs forms a hot surface groove.
2. A novel composite stave cooler according to claim 1 wherein: the metal rib is provided with at least one first through hole and at least one first locking bolt corresponding to the first through hole, the hot surface of the cooling wall body is provided with at least one first screw hole corresponding to the first locking bolt, the first locking bolt penetrates through the first through hole and is in threaded connection with the first screw hole, and the head of the first locking bolt and the hot surface of the cooling wall body clamp the metal rib together.
3. A novel composite stave cooler according to claim 1 wherein: the cooling wall body is provided with at least one second through hole and at least one second locking bolt corresponding to the second through hole, the metal rib is provided with at least one second screw hole corresponding to the second locking bolt, the second locking bolt penetrates through the second through hole and is in threaded connection with the second screw hole, and the head of the second locking bolt and the metal rib clamp the cooling wall body together.
4. A novel composite stave cooler according to claim 1 wherein: the metal rib is welded on the hot surface of the cooling wall body.
5. A novel composite stave cooler according to claim 1 wherein: the cross section of each metal rib is trapezoidal, rectangular or step-shaped.
6. A novel composite stave cooler according to claim 1 wherein: and all the metal ribs are fixedly arranged on the hot surface of the cooling wall body from top to bottom in sequence.
7. A novel composite stave cooler according to claim 1 wherein: the metal ribs are parallel to each other.
8. A novel composite stave cooler according to claim 1 wherein: the metal rib is of an integral structure.
9. A novel composite stave cooler according to claim 1 wherein: the metal rib is formed by splicing a plurality of metal rib sections.
10. A novel composite stave cooler according to claim 1 wherein: be equipped with many cooling channels in the stave body, these many cooling channels are sharp cooling channel of form, and each cooling channel is parallel to each other, and cooling channel's both ends are connected with business turn over water pipe respectively, and business turn over water pipe fixed mounting is on the cold side of stave body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120338326.0U CN214270935U (en) | 2021-02-06 | 2021-02-06 | Novel composite cooling wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120338326.0U CN214270935U (en) | 2021-02-06 | 2021-02-06 | Novel composite cooling wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214270935U true CN214270935U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120338326.0U Active CN214270935U (en) | 2021-02-06 | 2021-02-06 | Novel composite cooling wall |
Country Status (1)
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|---|---|
| CN (1) | CN214270935U (en) |
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2021
- 2021-02-06 CN CN202120338326.0U patent/CN214270935U/en active Active
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