CN213866281U - Combined hot-face reinforced copper cooling wall - Google Patents
Combined hot-face reinforced copper cooling wall Download PDFInfo
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- CN213866281U CN213866281U CN202023130677.7U CN202023130677U CN213866281U CN 213866281 U CN213866281 U CN 213866281U CN 202023130677 U CN202023130677 U CN 202023130677U CN 213866281 U CN213866281 U CN 213866281U
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Abstract
The utility model discloses a copper cooling wall is reinforceed to combined hot side, including copper cooling wall body, be equipped with at least one hot side bar recess on the hot side of copper cooling wall body, fixed mounting has the brick iron, its characterized in that in wherein at least one hot side bar recess: the steel brick is a combined steel brick, the combined steel brick comprises a lower steel brick and an upper steel brick, the lower steel brick is fixedly arranged in the hot-face strip-shaped groove, and the upper steel brick is detachably arranged on the lower steel brick. The combined hot-surface reinforced copper cooling wall can replace the steel bricks without disassembling the whole copper cooling wall, thereby saving the maintenance time and cost and reducing the shutdown time.
Description
Technical Field
The utility model relates to a furnace body cooling device of an iron-making blast furnace, in particular to a combined hot surface reinforced copper 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. Although the copper cooling wall is taken as an advanced blast furnace body cooling device, the development direction representing the long service life of the blast furnace is a consensus of the industry, and the copper cooling wall is also applied to the blast furnace at home and abroad on a large scale.
However, because copper materials are soft and have poor wear resistance, when the fluctuation of the blast furnace conditions is severe, the slag skin in a high-temperature area is easy to frequently fall off, and when the slag skin falls off, the slag skin can cause scouring wear to the hot surface of the copper cooling wall, although the copper cooling wall can be used for covering the copper cooling wall and the blast furnace body by re-hanging slag in a short time by virtue of excellent heat conductivity of the copper cooling wall, due to the problems of design and use of some blast furnaces, when the fluctuation of the blast furnace conditions is severe, the slag skin on the hot surface of the copper cooling wall can be frequently fallen off and rebuilt, so that the hot surface of the copper cooling wall body is repeatedly subjected to scouring wear of high-temperature furnace airflow and furnace burden until the copper cooling wall body is damaged, and the design life of the copper cooling wall cannot be reached. Aiming at the problem, the current ideal optimization scheme is to install wear-resistant steel bricks in the hot-face grooves of the copper cooling wall (such as the prior patent 'copper steel ladle sandwich reinforced composite cooling wall' with the patent number of the applicant being CN202020768163.5, steel bricks are fixedly installed in the hot-face strip-shaped grooves), slag is hung better through the steel bricks, the wear-resistant performance is improved, heat is conducted quickly at the contact part of the steel bricks and the copper cooling wall, and meanwhile, the steel bricks also play a role in cutting and supporting slag crust, the influence on a blast furnace body when the crust falls off is reduced, the copper cooling wall is protected, and the service life of the blast furnace is effectively prolonged. However, the steel brick is usually of a structure integrally manufactured at present and needs to be embedded in a groove on the hot surface of the copper cooling wall in advance, so that when the steel brick is used for a certain time and is partially damaged and needs to be replaced, the whole copper cooling wall can be detached from the blast furnace body, the steel brick can be replaced, the maintenance and replacement period is long, and the production efficiency of the blast furnace is influenced.
Disclosure of Invention
The utility model aims to solve the technical problem that a copper cooling wall is reinforceed to combined hot side is provided, this kind of copper cooling wall is reinforceed to combined hot side need not to dismantle the monoblock copper cooling wall and just can change the brick iron, practices thrift maintenance time and cost, reduces the blowing out time.
In order to solve the technical problems, the technical scheme is as follows:
the utility model provides a copper cooling wall is reinforceed to combined hot side, includes copper cooling wall body, is equipped with at least one hot side bar groove on the hot side of copper cooling wall body, wherein fixed mounting has the brick iron, its characterized in that in at least one hot side bar groove: the steel brick is a combined steel brick, the combined steel brick comprises a lower steel brick and an upper steel brick, the lower steel brick is fixedly arranged in the hot-face strip-shaped groove, and the upper steel brick is detachably arranged on the lower steel brick.
The surface of the copper cooling wall body facing the blast furnace chamber is a hot surface, and the surface of the copper cooling wall body back to the blast furnace chamber is a cold surface. The up-down direction is determined according to the positions of the hot surface and the cold surface of the copper cooling wall body, the hot surface direction is up, and the cold surface direction is down.
In the combined hot-surface reinforced copper cooling wall, when steel bricks are installed, the lower steel bricks are matched with the hot-surface strip-shaped grooves, then the upper steel bricks and the lower steel bricks are combined to form complete steel bricks, and then the copper cooling wall body is installed on a furnace body. Adopt the lower part iron brick direct with hot face bar groove connection, the mode of being connected can be dismantled with the lower part iron brick to the upper portion iron brick again, the position of being connected between lower part iron brick and the upper portion iron brick layer can expose outside, can not sheltered from, consequently, after using a period, can dismantle and change the new upper portion iron brick to the upper portion iron brick that appears damaging in the stove after blowing out, need not to pull down the whole piece of copper cooling wall body and change, save maintenance time and cost, reduce the blowing out time. The targeted optimization design can be carried out according to the actual damage conditions of the upper steel bricks in different blast furnaces and different use areas, for example, the combined steel bricks with different structures or different material properties are adopted. Generally, the thickness of the lower steel brick is smaller, and the thickness of the upper steel brick is larger, so that the lower steel brick is prevented from being worn when in use as much as possible, and the lower steel brick is prevented from being replaced as much as possible.
Generally, the upper steel block is detachably mounted on the upper surface of the lower steel block.
In a preferred scheme, the lower steel brick and the upper steel brick are connected through tenon-and-mortise joints, the upper surface of the lower steel brick is provided with tenons or mortises, and the lower surface of the upper steel brick is provided with corresponding mortises or tenons. The tenon can adopt a rabbet tenon, a tongue-and-groove tenon, a dovetail tenon, a threading tenon, a binding tenon and the like, and the mortise and tenon can adopt a matched structure according to the shape of the tenon.
In a further preferred scheme, the combined type steel brick further comprises a pin, a pin hole corresponding to the pin is formed in the combined type steel brick, the pin hole penetrates through the mortise-tenon joint part, and the pin is located in the pin hole. When the upper surface of the lower steel brick is connected with the lower surface of the upper steel brick in a mortise-tenon joint mode (namely, when the tenon adopts a structure of a rabbet tenon, a penetrating tenon and the like), the connection between the lower steel brick and the upper steel brick can be reinforced in a mode that the pin penetrates through the mortise-tenon joint part, so that the lower steel brick and the upper steel brick are prevented from falling off.
In another preferred scheme, the combined type steel brick further comprises a locking bolt, a screw hole corresponding to the locking bolt is formed in the upper surface of the lower steel brick, a through hole corresponding to the screw hole is formed in the upper steel brick, the locking bolt penetrates through the through hole and is in threaded connection with the screw hole, and the head of the locking bolt and the lower steel brick clamp the upper steel brick together. The upper steel brick is locked on the lower steel brick through a locking bolt.
In the preferred scheme, the combined type steel brick further comprises a grabbing nail, and the grabbing nail is fixedly arranged on the upper surface of the upper steel brick. The grabbing nail can adopt a Y-shaped grabbing nail, and the rod part of the Y-shaped grabbing nail can be fixed on the upper surface of the upper steel brick in a threaded or welding mode. The upper surface of the upper steel brick is provided with the grabbing nail, when the furnace body works, the grabbing nail can hook the slag crust, the slag hanging effect is further improved, the slag crust covers the upper steel brick, the upper steel brick is protected, and the service life of the copper cooling wall is prolonged.
The upper steel brick may be composed of one or more upper steel brick units. The number of the upper steel brick units can be set according to the requirement. Under the condition that the upper portion steel brick is composed of a plurality of upper portion steel brick units, each upper portion steel brick unit is arranged from bottom to top, the upper portion steel brick unit at the lowermost layer is detachably mounted on the lower portion steel brick, and the upper portion steel brick unit of the upper layer is detachably mounted on the upper portion steel brick unit of the lower layer adjacent (the upper portion steel brick unit of the upper layer can be fixed on the upper portion steel brick unit of the lower layer adjacent through a tenon-and-mortise connection mode or locking bolts).
In the preferred scheme, a plurality of hot face strip-shaped grooves are formed in the hot face of the copper cooling wall body, and a plurality of combined steel bricks are mounted on each hot face strip-shaped groove.
In the preferred scheme, be equipped with many cooling channel in the copper cooling stave body, these many cooling channel are sharp cooling channel of form, and cooling channel's both ends are connected with the business turn over water pipe respectively, and business turn over water pipe fixed mounting is on the cold side of copper cooling 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 the cooling channel from the water inlet and outlet pipe at one end, flows through the cooling channel and then flows out from the water inlet and outlet pipe at the other end, and heat on the copper cooling wall body can be effectively taken away. The cooling channels can be parallel to each other or not (for example, an included angle is formed between two adjacent cooling channels), and the cooling channels can be obtained by adopting a mode of removing materials on the copper cooling wall body by drilling or other machining (after drilling, the end part of the cooling channel is welded and plugged by an end plug, and a through hole for connecting with a water inlet pipe and a water outlet pipe is processed 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 channel can be arranged in a left-right direction, a front-back direction or an oblique direction.
The copper cooling wall body can be a straight plate or an arc-shaped plate, and correspondingly, the hot surface of the copper cooling wall body is a plane or an arc surface.
The material of the copper cooling wall body can be pure copper or copper alloy. The copper stave body is generally made of a copper plate subjected to a thermal deformation process such as forging or rolling.
The hot-face strip-shaped groove can be a dovetail groove (the cross section is trapezoidal, and the width of a notch is smaller than that of the groove bottom) or a square groove (the cross section is rectangular), or can be a strip-shaped groove with other cross sections, preferably a dovetail groove, and the lower surface of the lower steel brick can be provided with a convex block corresponding to the hot-face strip-shaped groove. The lower steel brick can be connected with the hot surface strip-shaped groove in the modes of refractory material inlaying, welding, bolt fastening and the like.
The beneficial effects of the utility model reside in that: the combined hot-surface reinforced copper cooling wall can replace the steel bricks without disassembling the whole copper cooling wall, thereby saving the maintenance time and cost and reducing the shutdown time.
Drawings
FIG. 1 is a schematic structural view of a combined hot-side reinforced copper cooling wall according to embodiment 1 of the present invention;
FIG. 2 is a side sectional view of the combined steel brick in embodiment 1 of the present invention;
fig. 3 is a side sectional view of the combined steel brick in embodiment 2 of the present invention;
fig. 4 is a side sectional view of the combined type steel brick in embodiment 3 of the present invention;
fig. 5 is a side sectional view of the combined steel brick in embodiment 4 of the present invention.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
example 1
The combined hot-face reinforced copper cooling wall shown in the figures 1-2 comprises a copper cooling wall body 1, wherein a plurality of hot-face strip-shaped grooves 2 are formed in the hot face of the copper cooling wall body 1, combined type steel bricks 3 are fixedly mounted in the hot-face strip-shaped grooves 2, each combined type steel brick 3 comprises a lower steel brick 301, an upper steel brick 302 and a grabbing nail 303, the lower steel brick 301 is fixedly mounted in the hot-face strip-shaped grooves 2, the upper steel brick 302 is detachably mounted on the upper surface of the lower steel brick 301, and the grabbing nail 303 is fixedly mounted on the upper surface of the upper steel brick 302.
The surface of the copper cooling wall body 1 facing the blast furnace chamber is a hot surface, and the surface back to the blast furnace chamber is a cold surface. The above-mentioned up-and-down direction is determined according to the position of the hot surface and the cold surface of the copper cooling wall body 1, the hot surface direction is up, and the cold surface direction is down.
In the combined hot-surface reinforced copper cooling wall, when steel bricks are installed, the lower steel bricks 301 are matched with the hot-surface strip-shaped grooves 2, then the upper steel bricks 302 and the lower steel bricks 301 are combined to form complete steel bricks, and then the copper cooling wall body 1 is installed on a furnace body. Adopt lower part iron brick 301 directly to be connected with hot face bar groove 2, upper portion iron brick 302 can dismantle the mode of being connected with lower part iron brick 301 again, the position of being connected between lower part iron brick 301 and the upper portion iron brick 302 layer can expose outside, can not sheltered from, consequently, after using a period, can dismantle and more renew upper portion iron brick 302 the upper portion iron brick 302 that appears damaging in the stove after blowing out, need not to pull down the change with 1 monoblock of copper cooling wall body, save maintenance time and cost, reduce the blowing out time. According to the actual damage condition of the upper steel brick 302 in different blast furnaces and different use areas, the targeted optimization design can be carried out, for example, the combined steel brick 3 with different structures or different material properties is adopted. Generally, the thickness of the lower steel brick 301 is small, and the thickness of the upper steel brick 302 is large, so that the lower steel brick 301 is prevented from being worn when in use as much as possible, and the lower steel brick 301 is prevented from being replaced as much as possible.
The lower steel brick 301 and the upper steel brick 302 are connected through mortise and tenon joints, the mortise 3011 is arranged on the upper surface of the lower steel brick 301, and the corresponding tenon 3021 is arranged on the lower surface of the upper steel brick 302. Tenon 3021 is dovetail tenon, and mortise 3011 adopts a matched structure according to the shape of the tenon.
The gripping nails 303 are Y-shaped gripping nails, and the rods of the Y-shaped gripping nails can be fixed on the upper surface of the upper steel brick 302 in a threaded or welding mode. Set up the grabbing nail 303 at the upper surface of upper portion brick iron 302, at the furnace body during operation, grabbing nail 303 can catch on the cinder, further improves the effect of hanging the sediment to make the cinder cover upper portion brick iron 302, play the effect of protection to upper portion brick iron 302, be favorable to prolonging the life of copper cooling wall.
Be equipped with many cooling channels in the copper cooling wall body 1, these many cooling channels are the cooling channel that sharply appears, and cooling channel's both ends are connected with business turn over water pipe 4 respectively, and business turn over water pipe 4 fixed mounting is on the cold side of copper cooling wall body 1. Typically, the cooling channels are not in communication with each other. A cooling channel and the water inlet and outlet pipes 4 at two ends form a cooling water path, so that the cooling wall is provided with a plurality of groups of cooling water paths side by side. During operation, cooling fluid enters the cooling channel from the water inlet and outlet pipe 4 at one end, flows through the cooling channel and then flows out from the water inlet and outlet pipe 4 at the other end, and can effectively take away heat on the copper cooling wall body 1. The cooling channel can be obtained by drilling or other mechanical processing methods to remove materials on the copper cooling wall body 1 (after drilling, the end part of the cooling channel is welded and blocked by an end plug, and a through hole for connecting with a water inlet pipe and a water outlet pipe is processed at the corresponding position on the cold surface).
The copper cooling wall body 1 is a straight plate.
The material of the copper stave body 1 can be pure copper or a copper alloy. The copper stave body 1 is generally made of a copper plate subjected to a thermal deformation process such as forging or rolling.
The hot-surface strip-shaped groove 2 is a dovetail groove (the cross section of the hot-surface strip-shaped groove is trapezoidal, and the width of a notch is smaller than that of the groove bottom), and a convex block corresponding to the hot-surface strip-shaped groove 2 is arranged on the lower surface of the lower steel brick 301. The lower steel brick 301 can be connected with the hot-face strip-shaped groove 2 by means of refractory inlaying, welding, bolt fastening and the like.
Example 2
This example differs from example 1 in that: as shown in fig. 3, the lower steel brick 301 'and the upper steel brick 302' are connected by mortise and tenon joint, a tenon 3011 'is provided on the upper surface of the lower steel brick 301', and a corresponding mortise 3021 'is provided on the lower surface of the upper steel brick 302'. The tenon 3011 'is a dovetail tenon, and the mortise 3021' is of a matched structure according to the shape of the tenon.
Example 3
This example differs from example 1 in that: as shown in fig. 4, the combined type steel brick further comprises a pin 305 ', a pin hole 306' corresponding to the pin 305 'is formed in the combined type steel brick, the pin hole 306' penetrates through the mortise-tenon joint, and the pin 305 'is located in the pin hole 306'.
Example 4
This example differs from example 1 in that: as shown in fig. 5, the combined steel brick further comprises a locking bolt 307 ", the upper surface of the lower steel brick 301" is provided with a screw hole 308 corresponding to the locking bolt 307 ", the upper steel brick 302" is provided with a through hole 309 corresponding to the position of the screw hole 308 ", the locking bolt 307" passes through the through hole 309 "and is in threaded connection with the screw hole 308", and the head of the locking bolt 307 "and the lower steel brick 301" clamp the upper steel brick 302 ". The upper steel brick 302 "is locked to the lower steel brick 301" by means of locking bolts 307 ".
Claims (7)
1. The utility model provides a copper cooling wall is reinforceed to combined hot side, includes copper cooling wall body, is equipped with at least one hot side bar groove on the hot side of copper cooling wall body, wherein fixed mounting has the brick iron, its characterized in that in at least one hot side bar groove: the steel brick is a combined steel brick, the combined steel brick comprises a lower steel brick and an upper steel brick, the lower steel brick is fixedly arranged in the hot-face strip-shaped groove, and the upper steel brick is detachably arranged on the lower steel brick.
2. The combination hot-face strengthened copper cooling stave of claim 1 wherein: the lower steel brick and the upper steel brick are connected through mortise and tenon joints, the upper surface of the lower steel brick is provided with a mortise or tenon joint, and the lower surface of the upper steel brick is provided with a corresponding mortise or tenon joint.
3. The combination hot-face strengthened copper cooling stave of claim 2 wherein: the combined type steel brick further comprises a pin, a pin hole corresponding to the pin is formed in the combined type steel brick, the pin hole penetrates through the mortise-tenon joint part, and the pin is located in the pin hole.
4. The combination hot-face strengthened copper cooling stave of claim 1 wherein: the combined type steel brick further comprises a locking bolt, a screw hole corresponding to the locking bolt is formed in the upper surface of the lower steel brick, a through hole corresponding to the screw hole is formed in the upper steel brick, the locking bolt penetrates through the through hole and is in threaded connection with the screw hole, and the head of the locking bolt and the lower steel brick clamp the upper steel brick together.
5. The combination hot-face strengthened copper cooling stave of claim 1 wherein: the combined type steel brick further comprises a grabbing nail which is fixedly arranged on the upper surface of the upper steel brick.
6. The combination hot-face strengthened copper cooling stave of claim 1 wherein: the hot side of the copper cooling wall body is provided with a plurality of hot side strip-shaped grooves, and each hot side strip-shaped groove is provided with a plurality of combined steel bricks.
7. The combination hot-face strengthened copper cooling stave of claim 1 wherein: the copper cooling wall body is internally provided with a plurality of cooling channels which are all linear cooling channels, the two ends of each cooling channel are respectively connected with a water inlet and outlet pipe, and the water inlet and outlet pipes are fixedly arranged on the cold surface of the copper cooling wall body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023130677.7U CN213866281U (en) | 2020-12-23 | 2020-12-23 | Combined hot-face reinforced copper cooling wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023130677.7U CN213866281U (en) | 2020-12-23 | 2020-12-23 | Combined hot-face reinforced copper cooling wall |
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| CN213866281U true CN213866281U (en) | 2021-08-03 |
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| CN202023130677.7U Active CN213866281U (en) | 2020-12-23 | 2020-12-23 | Combined hot-face reinforced copper cooling wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637304A (en) * | 2022-11-04 | 2023-01-24 | 河北万丰冶金备件有限公司 | Cooling wall for blast furnace |
| CN115786609A (en) * | 2022-11-04 | 2023-03-14 | 河北万丰冶金备件有限公司 | Cooling wall for blast furnace |
-
2020
- 2020-12-23 CN CN202023130677.7U patent/CN213866281U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637304A (en) * | 2022-11-04 | 2023-01-24 | 河北万丰冶金备件有限公司 | Cooling wall for blast furnace |
| CN115786609A (en) * | 2022-11-04 | 2023-03-14 | 河北万丰冶金备件有限公司 | Cooling wall for blast furnace |
| CN115637304B (en) * | 2022-11-04 | 2024-07-09 | 河北万丰冶金备件有限公司 | Cooling wall for blast furnace |
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