CN113563904A - Coke oven regenerator structure - Google Patents
Coke oven regenerator structure Download PDFInfo
- Publication number
- CN113563904A CN113563904A CN202110866940.9A CN202110866940A CN113563904A CN 113563904 A CN113563904 A CN 113563904A CN 202110866940 A CN202110866940 A CN 202110866940A CN 113563904 A CN113563904 A CN 113563904A
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- CN
- China
- Prior art keywords
- bricks
- small
- checker bricks
- regenerator
- hole checker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000571 coke Substances 0.000 title claims abstract description 22
- 239000011449 brick Substances 0.000 claims abstract description 154
- 238000005338 heat storage Methods 0.000 claims abstract description 52
- QRNPTSGPQSOPQK-UHFFFAOYSA-N magnesium zirconium Chemical compound [Mg].[Zr] QRNPTSGPQSOPQK-UHFFFAOYSA-N 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001174 ascending effect Effects 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
- C10B29/02—Brickwork, e.g. casings, linings, walls
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention relates to a coke oven regenerator structure, wherein the upper space of a regenerator is divided into an upper regenerator, a middle regenerator and a lower regenerator; the checker bricks comprise two brick types of small hole checker bricks and long hole checker bricks; small-hole checker bricks or long-hole checker bricks are respectively filled in the upper heat storage area, the middle heat storage area and the lower heat storage area; the small-hole checker bricks are provided with a plurality of rows and a plurality of columns of round vent holes or hexagonal vent holes, and the long-hole checker bricks are provided with a plurality of rows and a plurality of columns of strip-shaped vent holes; round vent holes or hexagonal vent holes on the small-hole checker bricks are arranged corresponding to the strip-shaped vent holes on the long-hole checker bricks, and a through vertical air duct is formed along the height direction of the regenerator. The invention can improve the heat storage area and the heat exchange efficiency, and is beneficial to reducing the height of the heat storage chamber on the basis of realizing the same heat storage effect.
Description
Technical Field
The invention relates to the technical field of coke ovens, in particular to a regenerator structure of a coke oven.
Background
The coke oven regenerator is positioned below the chute, is communicated with the combustion chamber through the chute and is a part for heat exchange between the waste gas and air. The heat storage chamber is filled with lattice bricks, when the hot waste gas descending through the vertical flue passes through the heat storage chamber, most of the heat is absorbed by the lattice bricks, after the interval of fixed reversing time, the ascending cold air flow enters the heat storage chamber from the lower part, and the heat is transferred to the ascending air flow by the lattice bricks after heat storage. The heat exchange is continuously carried out by reversing the ascending air flow and the descending air flow, so that the aims of reducing the temperature of the waste gas and improving the temperature of the ascending air flow are fulfilled.
At present, a cellular heat storage chamber structure is generally adopted in domestic coke ovens, and each pair of vertical flues and a corresponding heat storage chamber form an independent heating system. Therefore, the supply of coal gas and air can be respectively adjusted in the basement corresponding to each regenerative chamber according to the temperature required by the flame path, and the uniform distribution of the airflow in the long direction of the regenerative chambers is facilitated. The internal structural form of the regenerator, the structure and material of the checker bricks are key factors affecting heat recovery efficiency and process characteristics.
Disclosure of Invention
The invention provides a coke oven regenerator structure, which divides the upper space of each regenerator into three independent regenerators, and each regenerator is internally provided with checker bricks with different brick shapes, thereby improving the heat storage area, improving the heat exchange efficiency and being beneficial to reducing the height of the regenerator on the basis of realizing the same heat storage effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a coke oven regenerator structure, the coke oven regenerator is a space enclosed by regenerator main wall and regenerator single wall, divide into many cells regenerator through the dividing wall, every cell regenerator is made up of small flue, grate brick/grate plate and upper space; grate bricks/grate plates are arranged between the upper space and the small flue, and lattice bricks are arranged in the upper space; the upper space is divided into an upper heat storage area, a middle heat storage area and a lower heat storage area; the checker bricks comprise two brick types of small hole checker bricks and long hole checker bricks; small-hole checker bricks or long-hole checker bricks are respectively filled in the upper heat storage area, the middle heat storage area and the lower heat storage area; the small-hole checker bricks are provided with a plurality of rows and a plurality of columns of round vent holes or hexagonal vent holes, and the long-hole checker bricks are provided with a plurality of rows and a plurality of columns of strip-shaped vent holes; round vent holes or hexagonal vent holes on the small-hole checker bricks are arranged corresponding to the strip-shaped vent holes on the long-hole checker bricks, and a through vertical air duct is formed along the height direction of the regenerator.
The checker bricks are arranged on the footstool bricks of the grate brick/grate plate.
The small-hole checker brick is of a cuboid structure, and the circular vent hole or the hexagonal vent hole is a conical hole with a gradually enlarged cross section from bottom to top; the side of the small-hole checker brick is provided with a semi-circular conical groove or a semi-hexagonal conical groove, the semi-circular conical grooves on the corresponding sides of the adjacent 2 small-hole checker bricks form a circular air vent, and the semi-hexagonal conical grooves on the corresponding sides of the adjacent 2 small-hole checker bricks form a hexagonal air vent.
A plurality of grooves are formed in the top surfaces of the small-hole checker bricks, a plurality of bulges are correspondingly arranged on the bottom surfaces of the small-hole checker bricks, the grooves and the bulges are of circular truncated cone-shaped structures, and the small-hole checker bricks on the adjacent 2 layers are connected through the grooves and the bulges in a positioning fit and meshed mode.
The long hole checker brick is of a cuboid structure, and the long strip-shaped vent hole is a conical hole with a cross section gradually enlarged from bottom to top.
The side of the long hole checker brick is provided with a plurality of vertical ribs, and the bottom of the long hole checker brick is provided with a cross-shaped transverse airflow channel.
The width of the strip-shaped vent hole is equal to the diameter of the round vent hole and the length of a diagonal line of the hexagonal vent hole.
The small-hole checker bricks and the long-strip-hole checker bricks are all clay refractory bricks, magnesium refractory bricks or magnesium-zirconium refractory bricks.
And the lower heat storage area is filled with small-hole checker bricks, the middle heat storage area is filled with long-strip-hole checker bricks, and the upper heat storage area is filled with small-hole checker bricks.
Compared with the prior art, the invention has the beneficial effects that:
1) the small-hole checker bricks and the long-hole checker bricks are combined and arranged in each heat storage chamber, and the checker bricks on the grate bricks/grate plates adopt the small-hole checker bricks, so that the airflow distribution in each grid is more uniform, and the heat exchange efficiency is improved; the height of the regenerator can be reduced on the basis of realizing the same heat storage effect, and the construction investment is saved;
2) the adjacent 2 layers of lattice bricks are connected in an occlusion way or provided with a transverse airflow channel, so that the integral structure of the lattice bricks is stable, and the influence of airflow disturbance on the integral structure of the lattice bricks is avoided;
3) the heat storage chamber is divided into an upper heat storage area, a middle heat storage area and a lower heat storage area, and the small-hole checker bricks correspond to the vent holes of the long-hole checker bricks, so that the on-way resistance of airflow can be reduced.
Drawings
FIG. 1 is a schematic view of the construction of the regenerator of the present invention.
Fig. 2a is a front view of the long hole checker brick of the present invention.
Fig. 2b is a front view of fig. 2 a.
Fig. 2c is a side view of fig. 2 a.
Fig. 3a is a front view of the small hole checker brick of the present invention.
Fig. 3b is a front view of fig. 3 a.
Fig. 3c is a side view of fig. 3 a.
Fig. 3d is a schematic perspective view of the small-hole checker brick of the present invention.
In the figure: 1. regenerator single wall 2, regenerator main wall 3, upper regenerator 4, middle regenerator 5, lower regenerator 6, grate brick 7, small flue 8, transverse airflow channel 9, vertical bar 10, strip-shaped vent hole 11, groove 12, bulge 13, round vent hole 14, semi-circular conical groove
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in figure 1, the coke oven regenerator disclosed by the invention is a space enclosed by a regenerator main wall 2 and a regenerator single wall 1, and is divided into a multi-cell regenerator through partition walls, wherein each cell regenerator consists of a small flue 7, a grate brick 6/grate plate and an upper space; grate bricks 6/grate plates are arranged between the upper space and the small flue 7, and lattice bricks are arranged in the upper space; the upper space is divided into an upper heat storage area 3, a middle heat storage area 4 and a lower heat storage area 5; the checker bricks comprise two brick types of small hole checker bricks and long hole checker bricks; small-hole checker bricks or long-hole checker bricks are respectively filled in the upper heat storage area 3, the middle heat storage area 4 and the lower heat storage area 5; the small-hole checker bricks are provided with a plurality of rows and a plurality of columns of round vent holes 13 or hexagonal vent holes, and the long-hole checker bricks are provided with a plurality of rows and a plurality of columns of strip-shaped vent holes 10; the round vent holes 13 or the hexagonal vent holes on the small-hole checker bricks are arranged corresponding to the long-strip vent holes 10 on the long-hole checker bricks, and a through vertical air passage is formed along the height direction of the regenerator.
The checker bricks are arranged on the footstool bricks of the grate brick 6/grate plate.
As shown in fig. 2a-2c, the small-hole checker brick is a rectangular parallelepiped structure, and the circular vent holes 13 or the hexagonal vent holes are tapered holes whose cross sections are gradually enlarged from bottom to top; the side of the small-hole checker brick is provided with a semicircular conical groove 14 or a semi-hexagonal conical groove, the semicircular conical grooves 14 on the corresponding sides of the adjacent 2 small-hole checker bricks form a circular vent hole 13, and the semi-hexagonal conical grooves on the corresponding sides of the adjacent 2 small-hole checker bricks form a hexagonal vent hole.
The top surface of the small-hole checker brick is provided with a plurality of grooves 11, the bottom surface is correspondingly provided with a plurality of protrusions 12, the grooves 11 and the protrusions 12 are of circular truncated cone-shaped structures, and the small-hole checker bricks in the adjacent 2 layers are in positioning fit and meshed connection with the protrusions 12 through the grooves 11.
As shown in fig. 3a to 3d, the long lattice brick is a rectangular parallelepiped structure, and the elongated ventilation holes 10 are tapered holes whose cross sections gradually increase from bottom to top.
The side of the long hole checker brick is provided with a plurality of vertical ribs 9, and the bottom of the long hole checker brick is provided with a cross-shaped transverse airflow channel 8.
The width of the strip-shaped vent hole 10 is equal to the diameter of the round vent hole 13 and the length of a diagonal line of the hexagonal vent hole.
The small-hole checker bricks and the long-strip-hole checker bricks are all clay refractory bricks, magnesium refractory bricks or magnesium-zirconium refractory bricks.
And the lower heat storage area 5 is filled with small-hole checker bricks, the middle heat storage area 4 is filled with long-hole checker bricks, and the upper heat storage area 3 is filled with small-hole checker bricks.
The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples.
[ examples ] A method for producing a compound
As shown in FIG. 1, in this embodiment, the coke oven regenerator includes a small flue 7, grate bricks 6, small hole checker bricks (shown in FIGS. 3a-3 d), and long hole checker bricks (shown in FIGS. 2a-2 c). The heat storage chamber is a space formed by dividing a heat storage chamber main wall 2 and a heat storage chamber single wall 1, and is divided into a plurality of heat storage chambers through dividing walls, a grate brick 6 is arranged between each heat storage chamber and a small flue 7, and lattice bricks are arranged on footstep bricks of the grate brick 6.
In this embodiment, the small-hole checker brick is a rectangular parallelepiped structure, and 3 rows of 9 rows of circular vent holes 13 are formed in the small-hole checker brick, the circular vent holes 13 are tapered holes with a large top and a small bottom, and 2 adjacent rows of circular vent holes are arranged in a staggered manner. The four side surfaces of the small-hole checker brick are correspondingly provided with semicircular conical grooves 14. The upper surface of the small-hole checker brick is provided with a plurality of grooves 11, the lower surface of the small-hole checker brick is provided with a plurality of protrusions 12, the grooves 11 and the protrusions 12 are in the shape of a circular truncated cone, and the adjacent 2 layers of small-hole checker bricks are meshed together through the matching of the grooves 11 and the protrusions 12.
In this embodiment, the long-hole checker brick is a rectangular structure, and 2 rows and 6 rows of strip-shaped vent holes 10 are formed in the long-hole checker brick, the hole shape of each strip-shaped vent hole 10 is a combined shape of a semicircle at two ends and a rectangle in the middle, and each strip-shaped vent hole 10 is a tapered hole with a large top and a small bottom. The bottom of the long hole checker brick is provided with a cross-shaped transverse airflow channel 8 which is convenient for airflow adjustment, and the side surface of the long hole checker brick is provided with a plurality of vertical ribs 9 for improving the overall strength of the checker brick.
In this embodiment, the lower heat storage area 5 and the upper heat storage area 3 are respectively provided with small-hole checker bricks, the middle heat storage area 4 is provided with long-hole checker bricks, and the circular vent holes 13 on the small-hole checker bricks and the long-strip vent holes 10 on the long-hole checker bricks are arranged oppositely to form a communicated vertical air passage.
In this embodiment, the small-hole checker bricks and the long-hole checker bricks are made of magnesium-zirconium refractory bricks.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A coke oven regenerator structure, the coke oven regenerator is a space enclosed by regenerator main wall and regenerator single wall, divide into many cells regenerator through the dividing wall, every cell regenerator is made up of small flue, grate brick/grate plate and upper space; grate bricks/grate plates are arranged between the upper space and the small flue, and lattice bricks are arranged in the upper space; the heat exchanger is characterized in that the upper space is further divided into an upper heat storage area, a middle heat storage area and a lower heat storage area; the checker bricks comprise two brick types of small hole checker bricks and long hole checker bricks; small-hole checker bricks or long-hole checker bricks are respectively filled in the upper heat storage area, the middle heat storage area and the lower heat storage area; the small-hole checker bricks are provided with a plurality of rows and a plurality of columns of round vent holes or hexagonal vent holes, and the long-hole checker bricks are provided with a plurality of rows and a plurality of columns of strip-shaped vent holes; round vent holes or hexagonal vent holes on the small-hole checker bricks are arranged corresponding to the strip-shaped vent holes on the long-hole checker bricks, and a through vertical air duct is formed along the height direction of the regenerator.
2. The coke oven regenerator structure of claim 1, wherein said checker bricks are provided on footstep bricks of a grate brick/grate plate.
3. The coke oven regenerator structure of claim 1, wherein the small-hole checker bricks are rectangular parallelepiped structures, and the circular vent holes or hexagonal vent holes are tapered holes whose cross sections gradually expand from bottom to top; the side of the small-hole checker brick is provided with a semi-circular conical groove or a semi-hexagonal conical groove, the semi-circular conical grooves on the corresponding sides of the adjacent 2 small-hole checker bricks form a circular air vent, and the semi-hexagonal conical grooves on the corresponding sides of the adjacent 2 small-hole checker bricks form a hexagonal air vent.
4. The coke oven regenerator structure of claim 1 or 3, wherein the small-hole checker bricks have a plurality of grooves on the top surface and a plurality of protrusions on the bottom surface, the grooves and the protrusions are in a truncated cone-shaped structure, and the small-hole checker bricks in adjacent 2 layers are in positioning fit and meshing connection with the protrusions through the grooves.
5. The coke oven regenerator structure of claim 1, wherein the long hole checker bricks are rectangular parallelepiped structures, and the elongated vent holes are tapered holes whose cross sections gradually expand from bottom to top.
6. The coke oven regenerator structure of claim 1 or 5, wherein the slotted checker bricks have a plurality of studs on the sides thereof and cross-shaped transverse gas flow passages at the bottoms thereof.
7. The coke oven regenerator structure of claim 1, wherein the width of the elongated vent holes is equal to the diameter of the circular vent holes and the diagonal length of the hexagonal vent holes.
8. The coke oven regenerator structure of claim 1, wherein the small-hole checker bricks and the long-hole checker bricks are clay refractory bricks, magnesium refractory bricks or magnesium-zirconium refractory bricks.
9. The coke oven regenerator structure of claim 1, wherein the lower regenerator region is filled with small-hole checker bricks, the middle regenerator region is filled with long-hole checker bricks, and the upper regenerator region is filled with small-hole checker bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110866940.9A CN113563904B (en) | 2021-07-29 | 2021-07-29 | Coke oven regenerator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110866940.9A CN113563904B (en) | 2021-07-29 | 2021-07-29 | Coke oven regenerator structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113563904A true CN113563904A (en) | 2021-10-29 |
| CN113563904B CN113563904B (en) | 2024-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110866940.9A Active CN113563904B (en) | 2021-07-29 | 2021-07-29 | Coke oven regenerator structure |
Country Status (1)
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| CN (1) | CN113563904B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB377342A (en) * | 1931-05-14 | 1932-07-28 | United Steel Companies Ltd | Improvements in or relating to the regenerative chambers of open-hearth or reheatingfurnaces |
| CN102146293A (en) * | 2011-02-23 | 2011-08-10 | 中冶焦耐(大连)工程技术有限公司 | Method capable of adjusting heating uniformity of coke oven in length direction from lower portion and oven body structure |
| CN102352420A (en) * | 2011-10-22 | 2012-02-15 | 河南省豫兴热风炉工程技术有限公司 | Combination checker brick with two types of different brick structures |
| JP2014136760A (en) * | 2013-01-17 | 2014-07-28 | Nippon Steel & Sumitomo Metal | Refractory brick for regenerator of coke oven |
| CN204251639U (en) * | 2014-09-26 | 2015-04-08 | 鞍钢股份有限公司 | Novel hot-blast furnace checker brick |
| JP2018087288A (en) * | 2016-11-29 | 2018-06-07 | Ｊｆｅスチール株式会社 | Method for maintaining coke oven |
| CN110684544A (en) * | 2019-10-14 | 2020-01-14 | 中冶焦耐(大连)工程技术有限公司 | Coke oven regenerator structure |
| CN210855975U (en) * | 2019-10-14 | 2020-06-26 | 中冶焦耐(大连)工程技术有限公司 | Coke oven regenerator structure |
| CN215799310U (en) * | 2021-07-29 | 2022-02-11 | 中冶焦耐(大连)工程技术有限公司 | Coke oven regenerator structure |
-
2021
- 2021-07-29 CN CN202110866940.9A patent/CN113563904B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB377342A (en) * | 1931-05-14 | 1932-07-28 | United Steel Companies Ltd | Improvements in or relating to the regenerative chambers of open-hearth or reheatingfurnaces |
| CN102146293A (en) * | 2011-02-23 | 2011-08-10 | 中冶焦耐(大连)工程技术有限公司 | Method capable of adjusting heating uniformity of coke oven in length direction from lower portion and oven body structure |
| CN102352420A (en) * | 2011-10-22 | 2012-02-15 | 河南省豫兴热风炉工程技术有限公司 | Combination checker brick with two types of different brick structures |
| JP2014136760A (en) * | 2013-01-17 | 2014-07-28 | Nippon Steel & Sumitomo Metal | Refractory brick for regenerator of coke oven |
| CN204251639U (en) * | 2014-09-26 | 2015-04-08 | 鞍钢股份有限公司 | Novel hot-blast furnace checker brick |
| JP2018087288A (en) * | 2016-11-29 | 2018-06-07 | Ｊｆｅスチール株式会社 | Method for maintaining coke oven |
| CN110684544A (en) * | 2019-10-14 | 2020-01-14 | 中冶焦耐(大连)工程技术有限公司 | Coke oven regenerator structure |
| CN210855975U (en) * | 2019-10-14 | 2020-06-26 | 中冶焦耐(大连)工程技术有限公司 | Coke oven regenerator structure |
| CN215799310U (en) * | 2021-07-29 | 2022-02-11 | 中冶焦耐(大连)工程技术有限公司 | Coke oven regenerator structure |
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| CN113563904B (en) | 2024-09-03 |
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