CN216432450U - Split type shaft furnace cylindrical sleeve furnace cover - Google Patents
Split type shaft furnace cylindrical sleeve furnace cover Download PDFInfo
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- CN216432450U CN216432450U CN202121498039.2U CN202121498039U CN216432450U CN 216432450 U CN216432450 U CN 216432450U CN 202121498039 U CN202121498039 U CN 202121498039U CN 216432450 U CN216432450 U CN 216432450U
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Abstract
The utility model provides a cylindrical sleeve furnace cover of a split-type shaft furnace, which comprises a plurality of furnace cover flaps, wherein each furnace cover flap comprises an edge cover plate and a central cover plate, and the longitudinal section of the whole furnace cover is of a structure shaped like a Chinese character 'ji'. The edge cover flaps are provided with cold air channels and air duct openings, the adjacent two edge cover flaps are tightly spliced through connecting pieces, and the adjacent two edge cover flaps and the adjacent two center cover flaps are fixedly spliced through the connecting pieces. The cold air channel is a cavity structure with a rectangular cross section, and the end parts of the cold air channels of the adjacent edge cover flaps are communicated to form an annular channel. The method and the device effectively solve the problems of high manufacturing difficulty, poor quality of finished products, difficulty in transportation and installation, high equipment maintenance cost and the like.
Description
Technical Field
The utility model relates to the technical field of ferroalloy smelting equipment, in particular to a cylindrical sleeve furnace cover of a split shaft furnace.
Background
The ferroalloy pellet shaft furnace is an essential device in the process link of producing ferroalloy by an oxidation pellet method. With the development of the shaft furnace in precision and large scale, the furnace cover of the shaft furnace gradually becomes the bottleneck of the development as key equipment.
The prior art is an integral structure, and the problems of the prior art are as follows:
1. the surface area of the structure is too large, the number of welding seams is large during manufacturing, and stress concentration is easy to occur to influence the quality of a finished product;
2. the integrated structure equipment has large volume and heavy weight, the processing cost is increased at the early stage, and the transportation and the installation are not facilitated at the later stage;
3. during production and operation, if part of the area is burnt or damaged, the production needs to be stopped and overhauled, so that the production is influenced, and serious economic loss is caused.
Disclosure of Invention
According to the technical problems of high manufacturing difficulty, poor quality of finished products, difficulty in transportation and installation and high equipment maintenance cost, the cylindrical sleeve furnace cover of the split shaft furnace is provided.
The technical means adopted by the utility model are as follows:
a cylindrical sleeve furnace cover of a split-type shaft furnace is of a circular structure formed by splicing two or more furnace cover segments, and an annular cold air channel is arranged at the corner position of the inner side of the edge of the furnace cover;
cold air enters the whole annular air duct through two or more than two air inlet pipes, is discharged through the air outlet pipe after heat exchange, and cools the furnace cover;
the bell lamella includes: a rim flap and a center flap;
the central cover flap is positioned at the central position of the furnace cover, the edge cover flaps are uniformly distributed around the central cover flap, and the longitudinal section of the whole furnace cover is of a structure shaped like a Chinese character 'ji'.
The splicing end surfaces of the edge cover flap and the central cover flap are provided with connecting flanges, and the edge cover flap and the connecting flanges of the central cover flap are connected through fasteners; and the splicing end surfaces of two adjacent edge cover flaps are also provided with connecting flanges which are connected through fasteners. The connecting positions between the edge cover flaps and the central cover flap are both positioned above the furnace cover, so that the installation of equipment and the later-period disassembly and maintenance are facilitated. The volume and the weight of each component forming the furnace cover are reduced by the flange split splicing mode, the manufacturing quality is easy to control, the processing and the transportation are convenient, the components are damaged and easy to replace, the whole furnace cover does not need to be replaced, the maintenance period is shortened, and the maintenance cost is reduced.
The edge cover flap and the central cover flap are formed by splicing a plurality of cover plates and rib plates in different sizes and shapes, a cold air channel is arranged at the L-shaped corner of the edge cover flap, and the cold air channel is of a cavity structure with a rectangular cross section; the end parts of the cold air channels of the adjacent edge cover flaps are communicated to form an annular channel; the upper part of the cold air channel is provided with two or more air pipe openings. The cold air channel is connected with an external air pipe through an air pipe opening, so that the directional flow of cold air is realized, heat exchange and cooling are performed on equipment, the cold air enters from a gap between the central air inlet pipe and the central air outlet pipe above the central cover flap, enters the cold air channel along the edge air inlet pipe, enters the edge air outlet pipe after passing through an annular cold air path at the edge of the whole furnace cover, and finally is converged to air outlet at the central air outlet pipe above the central cover flap. The annular air duct effectively ensures the uniformity of temperature rise of each cover flap of the furnace cover after being heated, further improves the heat exchange effect of equipment, plays a role in protecting the service life of electric furnace equipment, and has the advantages of high cooling utilization rate and energy conservation. The outer wall of the edge cover flap can be connected with the corner module for limiting, so that the furnace cover and the corner module keep integral synchronous movement, and stable blanking of the pellets is ensured.
Preferably, the center of the furnace cover is provided with 2 cover flaps, and the cover flaps are of a 180-degree fan-shaped structure.
Preferably, the edge of the furnace cover is provided with 15 flaps, and the flaps are in 24-degree fan-shaped structures.
Preferably, 6 air pipe openings are arranged above the annular cold air channel.
Compared with the prior art, the utility model has the following advantages:
1. by means of split splicing, the weight and the volume of the equipment are reduced, and the difficulty and the cost of equipment transportation, lifting and installation are effectively reduced;
2. by means of split splicing, the surface area of equipment is reduced, the number of welding seams is reduced, stress concentration and equipment deformation are avoided, and the quality of a finished product is guaranteed;
3. the split splicing mode reduces the volume of equipment and reduces the difficulty of annealing treatment during manufacturing;
4. through the mode of split concatenation, if burning loss or damage appear in equipment operation, need not to change whole bell, only change corresponding bell lamella, reduced the cost of maintaining.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic top view of the cover according to the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic view of the fastening structure between the flaps of the present invention.
FIG. 4 is a longitudinal cross-sectional view of the present invention.
Fig. 5 is a schematic perspective view of the overall structure of the present invention.
In the figure:
1. the edge cover flaps 2, the central cover flaps 3, the cold air channel 4, the air pipe opening 5, the connecting flange 6, the fastening piece 7, the central air inlet pipe 8, the central air outlet pipe 9, the edge air inlet pipe 10 and the edge air outlet pipe.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in figures 1-5, the utility model provides a cylindrical sleeve furnace cover of a split shaft furnace, which is of a circular structure formed by splicing two or more furnace cover halves, and an annular cold air channel is arranged at the corner position of the inner side of the edge of the furnace cover. Cold air enters the whole annular air duct through two or more than two air inlet pipes, is discharged through the air outlet pipe after heat exchange, and cools the furnace cover.
The furnace cover flap mainly comprises two or more than two edge cover flaps 1 and two or more than two central cover flaps 2, as shown in figure 1. The central cover flap 2 is positioned at the central position of the furnace cover, the edge cover flaps 1 are uniformly distributed around the central cover flap 2, and the longitudinal section of the whole furnace cover is of a structure like a Chinese character ji, as shown in fig. 1, fig. 2 and fig. 4.
The splicing end surfaces of the edge cover flap 1 and the central cover flap 2 are provided with connecting flanges 5, and the edge cover flap 1 and the connecting flanges 5 of the central cover flap 2 are connected through fasteners 6; the splicing end faces of two adjacent edge flaps 1 are also provided with connecting flanges 5, which are connected by fasteners 6, see fig. 3. The connecting positions between the edge cover flaps 1 and the central cover flap 2 are both positioned above the furnace cover, so that the installation of equipment and the later-period disassembly and maintenance are facilitated. The volume and the weight of each component forming the furnace cover are reduced by the flange split splicing mode, the manufacturing quality is easy to control, the processing and the transportation are convenient, the components are damaged and easy to replace, the whole furnace cover does not need to be replaced, the maintenance period is shortened, and the maintenance cost is reduced.
The edge cover flap 1 and the central cover flap 2 are formed by splicing a plurality of cover plates and rib plates with different sizes and shapes, a cold air channel 3 is arranged at the L-shaped corner of the edge cover flap 1, and the cold air channel 3 is of a cavity structure with a rectangular cross section, as shown in figure 4; the end parts of the cold air channels 3 of the adjacent edge cover flaps 1 are communicated to form an annular channel; an air pipe opening 4 is arranged above the cold air channel 3, and the number of the air pipe openings 4 is two or more. The cold air channel 3 is connected with an external air pipe through an air pipe opening 4, so that the directional flow of cold air is realized, heat exchange and cooling are performed on equipment, as shown in fig. 5, the arrow direction is a cold air path, the cold air enters from a gap between a central air inlet pipe 7 and a central air outlet pipe 8 above the central cover flap 2, enters the cold air channel 3 along an edge air inlet pipe 9, enters an edge air outlet pipe 10 after passing through an annular cold air path at the edge of the whole furnace cover, and finally converges and exhausts the air from the central air outlet pipe 8 above the central cover flap 2. The annular air duct effectively ensures the uniformity of temperature rise of each cover flap of the furnace cover after being heated, further improves the heat exchange effect of equipment, plays a role in protecting the service life of electric furnace equipment, and has the advantages of high cooling utilization rate and energy conservation. The outer wall of the edge cover flap 1 can be connected with the corner module for limiting, so that the furnace cover and the corner module keep integral synchronous movement, and stable blanking of the pellets is ensured.
Preferably, the center of the furnace cover is provided with 2 cover flaps in a 180-degree fan-shaped structure, as shown in figures 1 and 2.
Preferably, the edge of the furnace cover has 15 flaps in a 24-degree fan-shaped structure, as shown in fig. 1 and 2.
Preferably, 6 air nozzles are arranged above the annular cold air channel, as shown in fig. 1 and 2.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A split type shaft furnace cylindrical sleeve furnace cover is characterized in that the whole furnace cover is a circular structure formed by splicing two or more furnace cover halves, and an annular cold air channel is arranged at the corner position of the inner side of the edge of the furnace cover;
cold air enters the whole annular air duct through two or more than two air inlet pipes, is discharged through the air outlet pipe after heat exchange, and cools the furnace cover;
the above-mentioned bell lamella includes: a rim flap (1) and a central flap (2);
the central cover flap (2) is positioned at the center of the furnace cover, the edge cover flaps (1) are uniformly distributed around the central cover flap (2), and the longitudinal section of the whole furnace cover is of a structure shaped like a Chinese character 'ji'.
2. The cylindrical sleeve furnace cover of a split shaft furnace according to claim 1,
the splicing end surfaces of the edge cover flap (1) and the central cover flap (2) are provided with connecting flanges (5), and the edge cover flap (1) and the connecting flanges (5) of the central cover flap (2) are connected through fasteners (6);
the splicing end surfaces of two adjacent edge cover flaps (1) are also provided with connecting flanges (5) which are connected through fasteners (6);
the connecting positions between the edge cover flap (1) and the central cover flap (2) are both positioned above the furnace cover.
3. The cylindrical sleeve furnace cover of a split shaft furnace according to claim 1 or 2,
the edge cover flap (1) and the central cover flap (2) are formed by splicing a plurality of cover plates and rib plates with different sizes and shapes, a cold air channel (3) is arranged at the L-shaped corner of the edge cover flap (1), and the cold air channel (3) is of a cavity structure with a rectangular cross section;
the end parts of the cold air channels (3) of the adjacent edge cover flaps (1) are communicated to form an annular channel; the upper part of the cold air channel (3) is provided with two or more air pipe openings (4);
the cold air channel (3) is connected with an external air pipe through an air pipe opening (4) to realize the directional flow of cold air so as to exchange heat and cool the equipment; cold air enters from a gap between a central air inlet pipe (7) and a central air outlet pipe (8) which are arranged above the central cover flap (2), then enters the cold air channel (3) through an edge air inlet pipe (9) connecting the air and the cold air channel (3), enters an edge air outlet pipe (10) connecting an air outlet of the cold air channel (3) and the central air outlet pipe (8) after passing through an annular cold air path at the edge of the whole cover, and finally joins air outlet at the central air outlet pipe (8) above the central cover flap (2).
4. The cylindrical sleeve furnace cover of a split shaft furnace according to claim 3,
the number of the central cover flaps of the furnace cover is 2, and the central cover flaps are of a 180-degree fan-shaped structure.
5. The cylindrical sleeve furnace cover of a split shaft furnace according to claim 4,
the number of the furnace cover edge cover flaps is 15, and the furnace cover edge cover flaps are of 24-degree fan-shaped structures.
6. The cylindrical sleeve furnace cover of a split shaft furnace according to claim 5,
6 air pipe openings are arranged above the annular cold air channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121498039.2U CN216432450U (en) | 2021-07-02 | 2021-07-02 | Split type shaft furnace cylindrical sleeve furnace cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121498039.2U CN216432450U (en) | 2021-07-02 | 2021-07-02 | Split type shaft furnace cylindrical sleeve furnace cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216432450U true CN216432450U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121498039.2U Active CN216432450U (en) | 2021-07-02 | 2021-07-02 | Split type shaft furnace cylindrical sleeve furnace cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216432450U (en) |
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2021
- 2021-07-02 CN CN202121498039.2U patent/CN216432450U/en active Active
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