CN218842049U - Annular air duct of coke dry quenching furnace - Google Patents
Annular air duct of coke dry quenching furnace Download PDFInfo
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- CN218842049U CN218842049U CN202223373239.2U CN202223373239U CN218842049U CN 218842049 U CN218842049 U CN 218842049U CN 202223373239 U CN202223373239 U CN 202223373239U CN 218842049 U CN218842049 U CN 218842049U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model relates to an annular air duct of a coke dry quenching furnace, which comprises an annular air duct consisting of an inner annular wall and an outer annular wall, wherein one side of the annular air duct is provided with a radial outlet, and the other side is provided with a separation wall; a plurality of support walls are arranged in the annular air duct on the outer side of the inner annular wall; the inner ring wall is a variable-thickness wall body with a narrow upper part and a wide lower part; an expansion joint is arranged between the support wall and the inner ring wall. The utility model discloses a set up the interior rampart that becomes thickness, set up the knee wall in the interior rampart outside, set up measures such as slip seam and expansion joint between knee wall and division wall and the interior rampart to and adopt brick ditch brick tongue to contract tight structural connection between the wall brick of interior rampart, effectively improved the bulk strength of annular duct, make the overall structure of dry quenching stove more firm, prolonged the life of dry quenching stove.
Description
Technical Field
The utility model relates to a dry quenching technical field especially relates to an annular air duct of dry quenching stove.
Background
The dry quenching is an important energy-saving and environment-friendly technology in the metallurgical industry, is obviously superior to wet quenching in the aspects of energy saving, environment protection, coke quality improvement and the like, and the popularization and application of the dry quenching technology bring huge economic and social benefits for coking enterprises.
The annular air duct is an important part in the dry quenching device, is positioned in the middle of the dry quenching furnace, at the periphery of the pre-storage area and above the inclined duct area and is used for collecting hot circulating gas from bottom to top through the inclined duct. In a traditional coke dry quenching furnace, an annular air duct is an annular cavity consisting of an inner annular wall and an outer annular wall, a radial outlet and an outlet partition wall are arranged on one side of the annular air duct, and a partition wall is arranged on the other side of the annular air duct; the inner ring wall is a cylindrical hollow wall body, the wall bricks forming the inner ring wall are wedge-shaped, the inner side of the inner ring wall is small in size, the outer side of the inner ring wall is large in size, staggered joints between the upper layer wall brick and the lower layer wall brick are built, and each wall brick is loosely matched.
In the annular air duct of the dry quenching furnace, the inner side of the inner ring wall is in direct contact with high-temperature coke, the friction and extrusion of the coke are borne for a long time, and then the falling impact of the coke in the coke loading process, the coke side pressure in the production process, the temperature difference inside and outside the wall body, pressure fluctuation and the influence of combustible components on the condition that introduced supplementary air generates combustion reaction or detonation and the like are added, so that the inner ring wall body is easy to crack, and even the local bulge and perforation of the inner ring wall body occur in severe cases, and the service life of the dry quenching furnace is shortened.
In order to solve the problems, domestic practitioners also make many improvements on the structure of the annular air duct, for example, the Chinese patent application with publication number CN103937512A discloses an "annular air duct", wherein the inner annular wall is designed into a multilayer inner wall brick structure, and the strength of the inner annular wall is increased by virtue of the bulges and the pits on the brick body; the Chinese utility model with publication number CN202322725U discloses a "dry quenching annular air duct structure", in which a stainless steel hoop and radial support columns are arranged at the periphery of an inner ring wall to increase the strength of the inner ring wall; the Chinese utility model with publication number CN205188203U discloses an annular air duct inner annular wall of a coke dry quenching device, which increases the strength of the inner annular wall body between two single bricks through a tongue and groove structure.
In the above-mentioned public technology, the brick type structure for building interior ring wall all is too complicated, and do not set up structures such as expansion joint and slip seam moreover, protruding, pit and tongue and groove structure on the brick body can cause the reduction of wall brick intensity on the contrary because the influence of structural stress and thermal stress, the interior ring wall damages at positions such as protruding, pit and tongue and groove structure easily, the stainless steel hoop can not reach the intensity of prediction at all under the high temperature condition, consequently, above technical scheme all is difficult to reach ideal application effect.
Disclosure of Invention
The utility model provides an annular duct of coke dry quenching stove sets up the knee wall in the inner ring wall outside through setting up the inner ring wall that becomes thickness, sets up measures such as slip seam and expansion joint between knee wall and division wall and the inner ring wall to and adopt brick ditch brick tongue to contract tight structural connection between the inner ring wall brick, effectively improved annular duct's bulk strength, make the overall structure of coke dry quenching stove more firm, prolonged the life of coke dry quenching stove.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an annular air duct of a coke dry quenching furnace comprises an annular air duct consisting of an inner annular wall and an outer annular wall, wherein one side of the annular air duct is provided with a radial outlet, and the other side of the annular air duct is provided with a partition wall; a plurality of support walls are arranged in the annular air duct on the outer side of the inner annular wall; the inner ring wall is a variable-thickness wall body with a narrow upper part and a wide lower part; the supporting wall is of a brick-built structure, the lower end of the supporting wall is supported on the bracket of the inclined way, the upper end of the supporting wall is supported on the outer wall of the inner ring wall, and an expansion gap is formed between the supporting wall and the inner ring wall.
Furthermore, the supporting walls are uniformly arranged along the circumferential direction of the annular air duct.
Furthermore, an expansion gap is arranged between the partition wall and the inner ring wall, and the thickness of the expansion gap is 2-20 mm.
Furthermore, sliding seams are arranged among the support wall, the partition wall, the inner annular wall and the bracket of the inclined channel.
Furthermore, the inner ring wall is built by a plurality of layers of wall bricks, and the adjacent 2 layers of wall bricks are connected by a brick groove brick tongue locking structure in an occluded manner.
Furthermore, the brick groove in the brick groove and brick tongue locking structure is an I-shaped groove composed of an annular locking groove arranged in the middle of the wall brick and 2 radial locking grooves arranged at two ends of the annular locking groove, and the brick tongue is an I-shaped bulge matched with the brick groove.
Furthermore, the thickness of an expansion joint between the support wall and the inner ring wall is 2-20 mm.
Furthermore, an outlet separating wall is arranged in the middle of a radial outlet of the annular air duct, and the inner end of the outlet separating wall is connected with the inner annular wall.
Compared with the prior art, the beneficial effects of the utility model are that:
through the arrangement of the inner ring wall with variable thickness, the arrangement of the supporting wall on the outer side of the inner ring wall, the arrangement of the sliding joints, the expansion joints and other measures between the supporting wall and the inner ring wall as well as between the separating wall and the inner ring wall, and the adoption of the brick groove brick tongue tightening structure connection between the wall bricks of the inner ring wall, the overall strength of the annular air duct is effectively improved, the overall structure of the dry quenching furnace is more stable, and the service life of the dry quenching furnace is prolonged.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a top view of an annular air duct of a dry quenching furnace according to the present invention.
Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A in fig. 1.
Fig. 3 is a schematic view of the connection between the inner ring wall bricks of the present invention.
Description of the reference numerals:
in the figure: 1. inner ring wall 2, outer ring wall 3, radial outlet 4, partition wall 5, outlet partition wall 6, support wall 7, chute corbel 8, expansion gap 9, annular air duct upper portion 10, sliding gap 11, annular locking groove 12 and radial locking groove
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be understood that the terms "circumferential direction", "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the structure referred to must have a specific direction, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1 and fig. 2, the annular air duct of the coke dry quenching furnace of the present invention comprises an annular air duct composed of an inner annular wall 1 and an outer annular wall 2, wherein one side of the annular air duct is provided with a radial outlet 3, and the other side is provided with a dividing wall 4; a plurality of support walls 6 are arranged in the annular air duct on the outer side of the inner annular wall 1; the inner ring wall 1 is a variable-thickness wall body with a narrow top and a wide bottom; the support wall 6 is of a brick-built structure, the lower end of the support wall 6 is supported on the bracket 7 of the inclined way, the upper end of the support wall 6 is supported on the outer wall of the inner ring wall 1, and an expansion gap 8 is arranged between the support wall 6 and the inner ring wall 1.
Furthermore, the support walls 6 are uniformly arranged along the circumferential direction of the annular air duct.
Furthermore, an expansion gap is arranged between the partition wall 4 and the inner ring wall 1, and the thickness of the expansion gap is 2-20 mm.
Furthermore, sliding seams 10 are arranged among the support wall 6, the partition wall 4, the inner annular wall 1 and the chute corbels 7.
Furthermore, the inner ring wall 1 is built by a plurality of layers of wall bricks, and the adjacent 2 layers of wall bricks are connected by a brick groove and brick tongue locking structure in an occluded manner.
Further, as shown in fig. 3, the brick groove in the brick groove and brick tongue locking structure is an i-shaped groove composed of a circumferential locking groove 11 formed in the middle of the wall brick and 2 radial locking grooves 12 formed at two ends of the circumferential locking groove 11, and the brick tongue is an i-shaped protrusion matched with the brick groove.
Furthermore, the thickness of the expansion gap 8 between the support wall 6 and the inner ring wall 1 is 2-20 mm.
Furthermore, an outlet separating wall 5 is arranged in the middle of a radial outlet 3 of the annular air duct, and the inner end of the outlet separating wall 5 is connected with the inner annular wall 1.
In order to make the purpose, technical scheme and technical effect of the embodiment of the present invention clearer, it is now clear and completely described to the technical scheme in the embodiment of the present invention. The embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. In combination with the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without any creative work belong to the protection scope of the present invention.
[ examples ] A method for producing a compound
As shown in fig. 1 and 2, in the present embodiment, the annular air duct of the coke dry quenching furnace is an annular cavity composed of an inner annular wall 1 and an outer annular wall 2, the bottoms of the inner annular wall 1 and the outer annular wall 2 are supported on the ramp corbels 7, and the tops are connected into a whole through the upper part 9 of the annular air duct. A radial outlet 3 is arranged on one side of the annular air duct, an air duct outlet partition wall 5 is arranged in the middle of the radial outlet 3, a partition wall 4 is arranged on the other side of the annular air duct, and a plurality of support walls 6 are arranged on the outer side of the inner annular wall 1 along the circumferential direction. The annular cavity between the inner annular wall 1 and the outer annular wall 2 is divided into two independent parts by the separating wall 4, circulating gas enters the two independent cavities in the annular air duct from the chute outlet and then is discharged from the radial outlet 3, and the outlet separating wall 5 is used for preventing the gas flow flowing out of the two independent cavities from forming vortex.
In this embodiment, the support walls 6 are disposed on the brackets 7 of the chutes in a one-to-one correspondence (except for the brackets 7 of the chutes corresponding to the partition walls 4 and the duct outlet partition walls 5), the support walls 6 are uniformly arranged in the circumferential direction, and the number of the support walls 6 = 2.
In this embodiment, the inner ring wall 1 of the annular air duct adopts a variable thickness structure, and the thickness H2 of the masonry at the lower part of the inner ring wall which is easy to damage is larger than the thickness H1 of the masonry at the upper part of the inner ring wall which is not easy to damage.
In this embodiment, the support wall 6 is a bricklaying structure, is arranged on the bracket 7 of the inclined way, and is positioned between the inner ring wall 1 and the outer ring wall 2, and an expansion gap 8 is arranged between the support wall 6 and the inner ring wall, and the thickness of the expansion gap 8 is 10mm.
Expansion gaps are respectively arranged between the partition wall 4 and the inner ring wall 1 and between the outlet partition wall 5 and the inner ring wall 1, and the thickness of each expansion gap is 12mm.
In the embodiment, as shown in fig. 3, the wall bricks of each layer constituting the inner ring wall 1 are connected by a brick groove and brick tongue locking structure, the brick groove in the brick groove and brick tongue locking structure is an i-shaped concave groove composed of a circumferential locking groove 11 arranged in the middle of the wall brick and 2 radial locking grooves 12 arranged at two ends of the circumferential locking groove 11, and the brick tongue is an i-shaped protrusion matched with the brick groove.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. An annular air duct of a coke dry quenching furnace comprises an annular air duct consisting of an inner annular wall and an outer annular wall, wherein one side of the annular air duct is provided with a radial outlet, and the other side of the annular air duct is provided with a partition wall; a plurality of support walls are arranged in the annular air duct on the outer side of the inner annular wall; the wall is characterized in that the inner annular wall is a variable-thickness wall body with a narrow upper part and a wide lower part; the supporting wall is of a brick-built structure, the lower end of the supporting wall is supported on the bracket of the inclined way, the upper end of the supporting wall is supported on the outer wall of the inner ring wall, and an expansion gap is formed between the supporting wall and the inner ring wall.
2. The annular duct of a coke dry quenching furnace as claimed in claim 1, wherein the support walls are uniformly arranged along the circumference of the annular duct.
3. The annular air duct of the coke dry quenching furnace as claimed in claim 1, wherein an expansion gap is arranged between the dividing wall and the inner annular wall, and the thickness of the expansion gap is 2-20 mm.
4. The annular duct of a coke dry quenching furnace as claimed in claim 1, wherein sliding slots are provided between the support wall, the dividing wall and the inner annular wall and the bracket of the chute.
5. The annular duct of the coke dry quenching furnace as claimed in claim 1, wherein the inner annular wall is built by a plurality of layers of wall bricks, and the adjacent 2 layers of wall bricks are connected by the brick groove and brick tongue locking structure in an engaged manner.
6. The annular air duct of the coke dry quenching furnace as claimed in claim 5, wherein the brick groove in the brick groove and brick tongue locking structure is an I-shaped groove composed of an annular locking groove arranged in the middle of the wall brick and 2 radial locking grooves arranged at two ends of the annular locking groove, and the brick tongue is an I-shaped protrusion matched with the brick groove.
7. The annular air duct of the coke dry quenching furnace as claimed in claim 1, wherein the expansion gap between the support wall and the inner annular wall has a thickness of 2-20 mm.
8. The annular air duct of the coke dry quenching furnace as claimed in claim 1, wherein the radial outlet of the annular air duct is provided with an outlet dividing wall in the middle, and the inner end of the outlet dividing wall is connected with the inner annular wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223373239.2U CN218842049U (en) | 2022-12-15 | 2022-12-15 | Annular air duct of coke dry quenching furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223373239.2U CN218842049U (en) | 2022-12-15 | 2022-12-15 | Annular air duct of coke dry quenching furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218842049U true CN218842049U (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223373239.2U Active CN218842049U (en) | 2022-12-15 | 2022-12-15 | Annular air duct of coke dry quenching furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218842049U (en) |
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2022
- 2022-12-15 CN CN202223373239.2U patent/CN218842049U/en active Active
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