CN213507031U - Blast furnace cooling structure - Google Patents
Blast furnace cooling structure Download PDFInfo
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- CN213507031U CN213507031U CN202022133342.4U CN202022133342U CN213507031U CN 213507031 U CN213507031 U CN 213507031U CN 202022133342 U CN202022133342 U CN 202022133342U CN 213507031 U CN213507031 U CN 213507031U
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- furnace shell
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Abstract
The utility model discloses a blast furnace cooling structure belongs to the metallurgical equipment field. It comprises a furnace shell; the cooling walls are arranged on the surface of the furnace shell in a laying mode; and a plurality of cooling plates are embedded between the horizontal gaps of the adjacent cooling walls, and the cooling plates extend towards the inside of the furnace shell. The utility model discloses a stave combines to form cooling structure with the stave, the existence of stave can play and hang the sediment effect, make stave surface cinder difficult for droing, the life of stave has effectively been prolonged, the stave that stretches into has still improved the cooling depth, cooling efficiency has been improved, and simultaneously, the existence of stave has reduced the drawback that single stave structure needs a large amount of trompils to install, the trompil number has been reduced, the intensity of the stove outer covering has been guaranteed, the stave cost consumption has been reduced, and the structure is simple, and reasonable design, the advantage of easily making.
Description
Technical Field
The utility model belongs to the field of metallurgical equipment, more specifically say, relate to a blast furnace cooling structure.
Background
The long-life technology of the blast furnace has great significance for large-scale development of the blast furnace and improvement of economic benefits of enterprises, and the life of the blast furnace is greatly dependent on the life of furnace body cooling equipment. At present, the domestic large and medium-sized blast furnaces generally adopt the structural form of a thin lining full cooling wall, and the cooling wall is frequently damaged due to the changes of forms such as lining thinning, cooling wall stress and the like.
However, the existing blast furnace cooler arrangement structure mostly adopts a single cooling wall or cooling plate arrangement mode. The design of all cooling walls faces the problems that the slag crust frequently falls off, the cooling walls are seriously damaged, the cooling walls are difficult to replace after being damaged, the furnace shell is perforated too many due to the structure of all cooling plates, the potential safety hazard is left, and the cost is high.
Through retrieval, the Chinese patent publication number: CN 1200116C; the publication date is as follows: 5 month and 4 days 2005; a cooling plate for blast furnace is composed of a casing made of flat copper cup, a water channel partition plate made of steel plate and arranged in the casing by casting or hot assembling, a steel flange connected to the flange at external edge of casing by bolts and nuts, and a washer for sealing between said flange and water inlet and outlet. This application provides an improved cooling plate structure, though reduced manufacturing cost by a wide margin, nevertheless inevitable offer more mounting hole on the stove outer covering, have the potential safety hazard.
In addition, chinese patent publication no: CN 107236838A; the publication date is as follows: 10 months and 10 days in 2017; the utility model discloses a blast furnace cooling device, this blast furnace cooling device installs on blast furnace stove outer covering inner wall and includes stave and at least one cooling strip, the stave has the hot face towards blast furnace chamber, the cooling strip is installed on the hot face, the cooling strip includes cooling strip body and two condenser tube, this internal cooling water passageway of seting up along the axial of cooling strip body that has of cooling strip, cooling water passageway has delivery port and water inlet, water inlet and delivery port all communicate has condenser tube, condenser tube's one end and this body sealing connection of cooling strip, condenser tube's the other end runs through stave and blast furnace stove outer covering. The cooling device of this application has improved the life of cooling effect and stave, but the change dismouting still is comparatively troublesome after the stave appears damaging.
Disclosure of Invention
In order to solve at least one of the above problems, the present invention adopts the following technical solution.
A cooling structure of a blast furnace comprises a cooling structure,
a furnace shell;
further comprising:
a plurality of cooling walls which are laid on the surface of the furnace shell;
and a plurality of cooling plates are embedded between the horizontal gaps of the adjacent cooling walls, and the cooling plates extend towards the inside of the furnace shell.
Lay the stave at the inside surface of stove outer covering, the horizontal crack of adjacent stave is separated the level and is inlayed and establish the cooling plate, wherein, the stave passes through the bolt fastening at the inside surface of stove outer covering, the cooling plate welding is on the stove outer covering between the stave, form cooling structure through stave and stave combination, the existence of cooling plate can play and hang the sediment effect, make stave surface cinder skin be difficult for droing, the life of stave has effectively been prolonged, the cooling plate that stretches into has still improved the cooling degree of depth, cooling efficiency is improved, and simultaneously, the existence of stave has reduced the drawback that single stave structure needs a large amount of trompils to install, the trompil number has been reduced, the intensity of stove outer covering has been guaranteed, the stave cost consumption has been reduced.
Furthermore, in the vertical direction of the furnace shell, the adjacent cooling walls are correspondingly laid one by one;
in the vertical direction of the furnace shell, a plurality of layers of cooling plates are formed, and the cooling plates of adjacent layers are arranged in a staggered mode in the vertical direction.
The cooling walls are laid in a one-to-one correspondence mode in the vertical direction, the cooling plates at the same level are called one layer of cooling plates, the cooling plates at adjacent layers are arranged in a staggered mode in the vertical direction, the number of the cooling plates can be further reduced, the cost of the cooling plates is reduced, the number of holes at the same level is avoided being large, the strength of the furnace shell is ensured, the quantity of slag can be guaranteed by the aid of the cooling plates arranged in a staggered mode, and effective protection of each cooling wall is guaranteed.
Furthermore, the width of the gap between two adjacent cooling walls embedded with the cooling plates is h, the thickness of the cooling plates is d, and h is more than or equal to 1.5d and less than or equal to 2 d.
According to the scheme, h is controlled to be not less than 1.5d and not more than 2d, so that the cooling plate can be conveniently and smoothly embedded, installed and replaced after being damaged, allowance is reserved for the shape change of the cooling wall or the cooling plate caused by the heat change, and the strength stability of the structure between the cooling wall and the cooling plate is ensured.
Furthermore, a copper scrap filling layer is filled in a gap between the cooling plate and the cooling wall.
Copper fillings filling layer fills the compaction for the copper fillings and constitutes in space department, and the heat conductivility can be ensured to the copper fillings filling layer, also can effectively protect the junction of cooling plate, prolongs the effective life of this application cooling structure.
Furthermore, the extension length of the cooling plate to the inside of the furnace shell is 100-150 mm.
The extension length of the cooling plate to the inside of the furnace shell is controlled to be 100-150 mm, so that the cooling effect and the protection effect on the cooling wall are ensured, and the damage frequency of the cooling plate is reduced.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a blast furnace cooling structure combines with the cooling plate through the stave to form cooling structure, and the existence of cooling plate can play and hang the sediment effect, makes stave surface cinder difficult for droing, has effectively prolonged the life of stave, and the cooling plate that stretches into has still improved the cooling depth, has improved cooling efficiency, and simultaneously, the existence of stave has reduced the drawback that a large amount of trompils of single stave structure need be installed, has reduced the trompil number, has guaranteed the intensity of stove outer covering, has reduced stave cost consumption;
(2) the cooling structure of the blast furnace of the utility model, the cooling plate structure arranged in a staggered way, can further reduce the number of the cooling plates, reduce the cost, avoid more holes at the same level height, ensure the strength of the furnace shell, ensure the slag hanging quantity of the cooling plates arranged in a staggered way, and ensure the effective protection of each cooling wall;
(3) the blast furnace cooling structure of the utility model ensures that the cooling plate can be conveniently and smoothly embedded and installed and replaced after being damaged by controlling h to be less than or equal to 2d or more than or equal to 1.5d, and reserves allowance for the shape change of the cooling wall or the cooling plate caused by the heat change, thereby ensuring the strength stability of the structure between the cooling wall and the cooling plate;
(4) the blast furnace cooling structure of the utility model has the advantages that the copper scrap filling layer can ensure the heat conducting performance, enhance the cooling effect, and effectively protect the joint of the cooling plate, thereby prolonging the effective service life of the cooling structure;
(5) the cooling structure of the blast furnace ensures the cooling effect and the protection effect on the cooling wall by controlling the extension length of the cooling plate to the inside of the furnace shell to be 100-150 mm, and reduces the damage frequency of the cooling plate;
(6) the utility model discloses simple structure, reasonable in design easily makes.
Drawings
FIG. 1 is a schematic structural view of a cooling structure of a blast furnace according to the present invention;
FIG. 2 is a schematic plan view of a cooling structure of a blast furnace according to the present invention;
FIG. 3 is a partial sectional view of a cooling structure of a blast furnace according to the present invention;
in the figure:
1. a furnace shell;
2. a stave;
3. a cooling plate;
4. and a copper scrap filling layer.
Detailed Description
The invention will be further described with reference to specific embodiments and drawings.
Example 1
The blast furnace cooling structure of the utility model comprises,
a furnace shell 1;
further comprising:
a plurality of cooling walls 2 which are laid on the surface of the furnace shell 1;
a plurality of cooling plates 3 are embedded between the horizontal gaps of the adjacent cooling walls 2, and the cooling plates 3 extend towards the inside of the furnace shell 1.
As shown in fig. 3, staves 2 are laid on the inner surface of the shell 1, cooling plates 3 are horizontally inserted into the horizontal gaps of the adjacent staves 2, wherein, the cooling walls 2 are fixed on the inner surface of the furnace shell 1 through bolts, the cooling plates 2 are welded on the furnace shell 1 between the cooling walls 2, the cooling wall 2 and the cooling plate 3 are combined to form a cooling structure, the existence of the cooling plate 3 can play a role of slag adhering, so that the slag crust on the surface of the cooling wall 2 is not easy to fall off, the service life of the cooling wall 2 is effectively prolonged, the cooling plate 3 can be replaced independently from the outside when damaged, the cooling plate 3 extending into the cooling plate improves the cooling depth and the cooling efficiency, meanwhile, the existence of the cooling wall 2 reduces the defect that a single cooling plate 3 structure needs a large number of holes for installation, reduces the number of the holes, ensures the strength of the furnace shell 1 and reduces the cost consumption of the cooling plate 3.
Example 2
The blast furnace cooling structure of the utility model is further improved on the basis of the embodiment 1, and the adjacent cooling walls 2 are correspondingly laid in a one-to-one manner in the vertical direction of the furnace shell 1;
in the furnace shell 1, a plurality of layers of cooling plates 3 are formed in the vertical direction, and the cooling plates 3 of adjacent layers are arranged in a staggered manner in the vertical direction.
As shown in fig. 1 and 2, the staves 2 are laid in a one-to-one correspondence in the vertical direction, the cooling plates 3 at the same horizontal level are referred to as a layer of cooling plates 3, and the cooling plates 3 of adjacent layers are arranged in a staggered manner in the vertical direction.
In view of 2 size of a dimension of current stave, upper end lower extreme at same stave 2 all sets up cooling plate 3, it is limited to all inlay in every horizontal gap of adjacent stave 2 and establish cooling plate 3 to 2 life's of stave extension, and every horizontal gap all inlays and establishes cooling plate 3, can set up more trompil at the same level of stove outer shell 1, influence stove outer shell 1 intensity, through this setting of this embodiment, can further reduce the quantity of cooling plate 3, reduce its cost, avoid same level trompil number more, ensure stove outer shell 1 intensity, and staggered arrangement's cooling plate 3 can guarantee to hang the sediment volume, guarantee the protection to every stave 2.
Example 3
The utility model discloses a blast furnace cooling structure is further improved on embodiment 2's basis, inlays the clearance width between 2 adjacent two staves that are equipped with cooling plate 3 and is h, and the thickness of cooling plate 3 is d, and 1.5d is less than or equal to h and is less than or equal to 2 d.
In the embodiment, h is controlled to be not less than 1.5d and not more than 2d, so that the cooling plate 2 can be conveniently and smoothly embedded, installed and replaced after being damaged, allowance is reserved for the shape change of the cooling wall 2 or the cooling plate 3 caused by the heat change, and the strength stability of the structure between the cooling wall 2 and the cooling plate 3 is ensured.
Example 4
The utility model discloses a blast furnace cooling structure is further improved on the basis of embodiment 3, and the space department between cooling plate 3 and the stave 2 is filled up with copper scraps filling layer 4.
Copper fillings filling layer 4 is that the copper fillings packing compaction constitutes in space department, and heat conductivility can be ensured to copper fillings filling layer 4, strengthens the cooling effect, also can effectively protect the junction of cooling plate 3, prolongs the effective life of this application cooling structure.
Example 5
The utility model discloses a blast furnace cooling structure is further improved on the basis of embodiment 4, the cooling plate 3 is 100~150mm to the inside extension length of stove outer covering 1.
The cooling plate 3 is controlled to extend to the inside length of stretching out of stove outer covering 1 to this embodiment and is greater than 100mm, ensure the cooling depth, improve the cooling strength, guarantee simultaneously to hang the sediment, with protection stave 2, it then can't effectively hang the sediment to be less than 100mm, stave 2 life receives the influence, this embodiment control extension length is less than 150mm, be greater than 150mm back, the frequency of damage of cooling plate 3 increases, but the increase of cooling efficiency is not obvious, the experiment shows, the extension length optimal value of cooling plate 3 to stove outer covering 1 inside is 120 mm.
Example 6
The blast furnace cooling structure of the present embodiment is arranged by:
step one, the cooling wall 2 is installed in a sequential installation mode according to an upper installation mode and a lower installation mode which correspond to each other one by one and is fixed on the furnace shell 1 through bolts;
secondly, the cooling plates 3 are welded and installed on the furnace shell 1 between the upper cooling wall 2 and the lower cooling wall 2, wherein the cooling plates 3 of adjacent layers are arranged in a staggered mode in the vertical direction, a gap with the thickness being 1.5-2 times that of the cooling plates 3 is reserved between the upper cooling wall 2 and the lower cooling wall 2 where the cooling plates 3 are installed, and no gap is reserved between the other cooling walls 2 where the cooling plates 3 are not installed;
and step three, filling the residual gap between the cooling wall 2 and the cooling plate 3 after the cooling plate 3 is installed by adopting a copper scrap filling layer 4, and enhancing the cooling effect.
Through the arrangement mode of the embodiment, the cooling effect of the furnace cooling structure can be effectively improved, the cooling plate 3 is horizontally inserted into the furnace deeply, the cooling depth is large, the cooling strength is high, the cooling efficiency is high, the cooling plate is not easy to damage, and the cooling plate 3 can be replaced under the damaged condition; and slag is easy to adhere, slag crust is not easy to fall off, and the protection of the cooling wall 2 is facilitated. The cooling plates 3 are arranged in a staggered mode, the service efficiency of the cooling plates 3 can be improved, materials are saved, the arrangement mode that the cooling walls 2 are matched with the cooling plates 3 can ensure that slag skins of the cooling walls 2 are not easy to fall off, and the effect of effectively protecting the cooling walls 2 is achieved.
The material of the cooling wall 2 or the cooling plate 3 may be cast steel, cast iron or copper, or may be other heat conductive materials.
The examples of the utility model are only right the utility model discloses a preferred embodiment describes, and not right the utility model discloses design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design idea, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.
Claims (5)
1. A cooling structure of a blast furnace comprises a cooling structure,
a furnace shell;
it is characterized by also comprising:
a plurality of cooling walls which are laid on the surface of the furnace shell;
and a plurality of cooling plates are embedded between the horizontal gaps of the adjacent cooling walls, and the cooling plates extend towards the inside of the furnace shell.
2. A blast furnace cooling structure according to claim 1, wherein:
in the vertical direction of the furnace shell, the adjacent cooling walls are correspondingly laid one by one;
in the vertical direction of the furnace shell, a plurality of layers of cooling plates are formed, and the cooling plates of adjacent layers are arranged in a staggered mode in the vertical direction.
3. A blast furnace cooling structure according to claim 2, wherein: the width of the gap between two adjacent cooling walls embedded with the cooling plate is h, the thickness of the cooling plate is d, and h is more than or equal to 1.5d and less than or equal to 2 d.
4. A blast furnace cooling structure according to claim 3, wherein: and a copper scrap filling layer is filled in a gap between the cooling plate and the cooling wall.
5. The cooling structure of a blast furnace according to claim 4, wherein: the extension length of the cooling plate to the inside of the furnace shell is 100-150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022133342.4U CN213507031U (en) | 2020-09-25 | 2020-09-25 | Blast furnace cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022133342.4U CN213507031U (en) | 2020-09-25 | 2020-09-25 | Blast furnace cooling structure |
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| Publication Number | Publication Date |
|---|---|
| CN213507031U true CN213507031U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022133342.4U Active CN213507031U (en) | 2020-09-25 | 2020-09-25 | Blast furnace cooling structure |
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| Country | Link |
|---|---|
| CN (1) | CN213507031U (en) |
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- 2020-09-25 CN CN202022133342.4U patent/CN213507031U/en active Active
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