CN111171845B - A coke cooling structure and coke cooling method in a dry quenching furnace - Google Patents
A coke cooling structure and coke cooling method in a dry quenching furnace Download PDFInfo
- Publication number
- CN111171845B CN111171845B CN201911379208.8A CN201911379208A CN111171845B CN 111171845 B CN111171845 B CN 111171845B CN 201911379208 A CN201911379208 A CN 201911379208A CN 111171845 B CN111171845 B CN 111171845B
- Authority
- CN
- China
- Prior art keywords
- cooling
- dry quenching
- quenching furnace
- partition wall
- coke
- 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.)
- Active
Links
- 238000010791 quenching Methods 0.000 title claims abstract description 81
- 230000000171 quenching effect Effects 0.000 title claims abstract description 81
- 238000001816 cooling Methods 0.000 title claims abstract description 79
- 239000000571 coke Substances 0.000 title claims abstract description 48
- 238000005192 partition Methods 0.000 claims abstract description 35
- 239000007789 gas Substances 0.000 claims abstract description 34
- 239000000112 cooling gas Substances 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 5
- 239000011819 refractory material Substances 0.000 claims description 19
- 239000011261 inert gas Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 150000004645 aluminates Chemical class 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 5
- 239000011449 brick Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
本发明涉及一种干熄炉中的焦炭冷却结构及焦炭冷却方法，焦炭冷却结构包括供气装置、分隔墙、分隔墙支撑装置及伞形集气罩；所述干熄炉中预存段与冷却段的炉体内壁直接相连；分隔墙设于冷却段内，将冷却段沿周向均匀地分隔为至少2个独立的冷却腔室；分隔墙的中心沿高向设冷却气体排出口，冷却气体排出口的上方设伞形集气罩；分隔墙内沿干熄炉径向设有气流导出通道，气流导出通道的内端与冷却气体排出口连通，气流导出通道的外端连接干熄炉冷却气体循环系统。本发明取消了传统干熄炉的斜道区和环形风道，将冷却气体自分隔墙中的气流导出通道导出，增加了干熄炉的炉体结构强度，有利于延长干熄炉的使用寿命，提高冷却段的冷却效率和焦炭冷却均匀性。
The present invention relates to a coke cooling structure and a coke cooling method in a dry quenching furnace, wherein the coke cooling structure comprises an air supply device, a partition wall, a partition wall supporting device and an umbrella-shaped gas collecting hood; the pre-storage section in the dry quenching furnace is directly connected to the inner wall of the furnace body of the cooling section; the partition wall is arranged in the cooling section, and the cooling section is evenly divided into at least two independent cooling chambers along the circumferential direction; a cooling gas outlet is arranged in the center of the partition wall along the height direction, and an umbrella-shaped gas collecting hood is arranged above the cooling gas outlet; an air flow outlet channel is arranged in the partition wall along the radial direction of the dry quenching furnace, the inner end of the air flow outlet channel is connected to the cooling gas outlet, and the outer end of the air flow outlet channel is connected to the cooling gas circulation system of the dry quenching furnace. The present invention eliminates the inclined channel area and the annular air duct of the traditional dry quenching furnace, and guides the cooling gas from the air flow outlet channel in the partition wall, thereby increasing the structural strength of the furnace body of the dry quenching furnace, being beneficial to extending the service life of the dry quenching furnace, and improving the cooling efficiency of the cooling section and the uniformity of coke cooling.
Description
Technical Field
The invention relates to the technical field of dry quenching, in particular to a coke cooling structure and a coke cooling method in a dry quenching furnace.
Background
In the traditional dry quenching furnace body structure, an annular air duct is arranged between a pre-storing section and a furnace body of a cooling section and is connected with the furnace body through an inclined duct area, but in the production process, the inner annular wall forming the annular air duct is easy to damage, and the main reasons are that 1) brackets of the inclined duct area of the dry quenching furnace are of a layer-by-layer overhanging structure, the stress structure is thinner and the strength is poorer, 2) the inner annular wall of the annular air duct is often impacted when materials in the furnace fall down, and 3) the temperature distribution of the inclined duct area is uneven, and the brackets of the inclined duct are easy to damage after being subjected to the action of thermal stress.
At present, a method for reinforcing the structural strength of the annular air duct is generally to add a complex groove tongue structure on an inner annular wall brick so as to fix the brick wall at each position. The chute bracket is mainly built by adopting refractory materials with higher compressive strength and better thermal shock stability. The bracket of the chute is generally required to be maintained every two years or so and is required to be overhauled and replaced every five years.
In addition, as coke ovens become larger, the dry quenching ovens also gradually develop in the direction of larger, and the problem of uniformity in distribution of cooling gas in the lower part of the cooling section of the dry quenching ovens is more and more difficult to solve.
Disclosure of Invention
The invention provides a coke cooling structure and a coke cooling method in a dry quenching furnace, which cancel a chute area and an annular air duct of the traditional dry quenching furnace, set a partition wall in a cooling section furnace body, and guide cooling gas out of an air flow guide channel in the partition wall, thereby increasing the structural strength of the furnace body of the dry quenching furnace, being beneficial to prolonging the service life of the dry quenching furnace and improving the cooling efficiency and the coke cooling uniformity of the cooling section.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
A coke cooling structure in a dry quenching furnace comprises an air supply device arranged at the bottom of the dry quenching furnace, a dividing wall supporting device and an umbrella-shaped air collecting cover, wherein the dry quenching furnace consists of a furnace top, a pre-storage section, a cooling section and a cone bucket which are sequentially connected from top to bottom, the pre-storage section is directly connected with a furnace body of the cooling section, the dividing wall is arranged in the cooling section and above the air supply device, the dividing wall is used for dividing the cooling section into at least 2 independent cooling chambers uniformly along the circumferential direction, the dividing wall is fixed in the furnace body of the dry quenching furnace through the dividing wall supporting device, a cooling gas outlet is arranged in the center of the dividing wall along the high direction, the umbrella-shaped air collecting cover is arranged above the cooling gas outlet, an air flow guiding channel is arranged in the dividing wall along the radial direction of the dry quenching furnace, the inner end of the air flow guiding channel is communicated with the cooling gas outlet, and the outer end of the air flow guiding channel is connected with a cooling gas circulation system of the dry quenching furnace.
The dividing wall is built by refractory masonry or is formed by pouring refractory materials.
The division wall supporting device is supported and fixed on the cooling section and/or the inner wall of the cone hopper.
The partition wall supporting device consists of a plurality of stand columns and an annular supporting beam, the bottoms of the stand columns are fixedly connected with the inner wall of the furnace body of the cone hopper, the tops of the stand columns are fixedly connected with the bottoms of the annular supporting beam, and the outer sides of the annular supporting beam are fixedly connected with the inner wall of the furnace body of the cooling section.
The partition wall supporting device is made of refractory materials or aluminate cement materials, or is made of composite materials with an upper layer made of refractory materials, a middle interlayer made of aluminate cement materials and a lower layer made of refractory materials.
The umbrella-shaped gas collecting hood is fixed at the top of the dividing wall and is made of refractory materials or metal materials or a composite structure consisting of the refractory materials and the metal materials.
A method of cooling coke comprising:
In the dry quenching process, red coke is filled from the top of the dry quenching furnace, low-temperature inert gas is blown into the dry quenching furnace through a gas supply device under the action of a circulating fan, the low-temperature inert gas respectively enters into each cooling cavity to be contacted with the red coke to absorb red Jiao Xianre, cooled coke is discharged through a coke discharging device through a cone hopper, high-temperature inert gas after absorbing sensible heat of the red coke rises to the top of the cooling cavity and is collected by an umbrella-shaped gas collecting hood and then is turned back downwards to enter a cooling gas outlet, the cooled coke is discharged from the dry quenching furnace through an airflow outlet channel in a dividing wall, enters the dry quenching furnace for heat exchange after primary dust removal, and cooled inert gas is blown into the dry quenching furnace again through the circulating fan for recycling after secondary dust removal.
Compared with the prior art, the invention has the beneficial effects that:
1) The annular air duct and the inclined channel area in the conventional dry quenching furnace are eliminated, and unstable factors are eliminated, so that the dry quenching furnace forms a self-stable structure;
2) The cooling section of the dry quenching furnace is divided into a plurality of cooling cavities by the dividing wall, so that cooling gas entering from the lower gas supply device is distributed more uniformly in the cooling section, and uniform cooling of coke is facilitated;
3) The partition wall in the dry quenching furnace consists of a vertical wall body and is supported by a partition wall supporting device, so that the structure strength of the wall body is high and the service life is long;
4) Because the chute area and the annular air duct are eliminated, the structure of the dry quenching furnace is simplified, the construction is easier, and the construction and maintenance cost of the dry quenching furnace is reduced.
Drawings
Fig. 1 is a front sectional view of a coke cooling structure in a dry quenching furnace according to the present invention.
Fig. 2 is A-A view of fig. 1.
Fig. 3 is a B-B view in fig. 1.
Fig. 4 is a C-C view of fig. 1.
In the figure, 1, a dry quenching furnace 2, an air supply device 3, a partition wall 4, a partition wall supporting device 5, a cooling air outlet 6, an umbrella-shaped gas collecting hood 7, an air flow guiding channel 8 and an annular gas collecting pipe
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
The coke cooling structure in the dry quenching furnace comprises an air supply device 2 arranged at the bottom of the dry quenching furnace 1, a dividing wall 3, a dividing wall supporting device 4 and an umbrella-shaped gas collecting hood 6, wherein the dry quenching furnace 1 consists of a furnace top, a pre-stored section, a cooling section and a cone bucket which are sequentially connected from top to bottom, the pre-stored section is directly connected with a furnace body of the cooling section, the dividing wall 3 is arranged in the cooling section and above the air supply device 2, the dividing wall 3 uniformly divides the cooling section into at least 2 independent cooling chambers along the circumferential direction, the dividing wall 3 is fixed in the furnace body of the dry quenching furnace 1 through the dividing wall supporting device 4, a cooling gas outlet 5 is arranged in the center of the dividing wall 3 along the height direction, the umbrella-shaped gas collecting hood 6 is arranged above the cooling gas outlet 5, an air flow guiding channel 7 is radially arranged in the dividing wall 3, the inner end of the air flow guiding channel 7 is communicated with the cooling gas outlet 5, and the outer end of the air flow guiding channel 7 is connected with a dry quenching cooling gas circulation system.
The partition wall 3 is built by refractory masonry or is poured by refractory materials.
The division wall supporting device 4 is supported and fixed on the cooling section and/or the inner wall of the cone hopper.
The partition wall supporting device 4 consists of a plurality of stand columns and annular supporting beams, the bottoms of the stand columns are fixedly connected with the inner wall of the furnace body of the cone hopper, the tops of the stand columns are fixedly connected with the bottoms of the annular supporting beams, and the outer sides of the annular supporting beams are fixedly connected with the inner wall of the furnace body of the cooling section.
The partition wall supporting device 4 is made of refractory materials or aluminate cement materials, or is made of composite materials with an upper layer made of refractory materials, a middle interlayer made of aluminate cement materials and a lower layer made of refractory materials.
The umbrella-shaped gas collecting hood 6 is fixed on the top of the partition wall 3, and the umbrella-shaped gas collecting hood 6 is made of refractory materials or metal materials or a composite structure formed by the refractory materials and the metal materials.
A method of cooling coke comprising:
In the dry quenching process, red coke is filled from the top of the dry quenching furnace 1, low-temperature inert gas is blown into the dry quenching furnace 1 through the gas supply device 2 under the action of the circulating fan, the low-temperature inert gas respectively enters into each cooling cavity to be contacted with the red coke to absorb red Jiao Xianre, the cooled coke is discharged through the coke discharge device through the cone hopper, the high-temperature inert gas after absorbing the sensible heat of the red coke rises to the top of the cooling cavity and is collected by the umbrella-shaped gas collecting hood 6, then the gas is turned back downwards to enter the cooling gas discharge port 5, the gas is discharged from the dry quenching furnace 1 through the gas flow guide channel 7 in the partition wall 3, the gas enters into the dry quenching furnace for heat exchange after primary dust removal, and the cooled inert gas is blown into the dry quenching furnace 1 again through the circulating fan for recycling after secondary dust removal.
According to the coke cooling structure in the dry quenching furnace, an air supply device 2 (conventionally arranged) in the dry quenching furnace 1 is used for supplying cooling air into the dry quenching furnace 1, a cooling section in the dry quenching furnace 1 is divided into a plurality of cooling cavities by a dividing wall 3, and an umbrella-shaped gas collecting hood 6 is arranged at the top of the dividing wall 3.
Compared with the conventional dry quenching furnace structure, the coke cooling structure in the dry quenching furnace provided by the invention omits a chute area and an annular air duct. The lower part of the dry quenching furnace 1 is additionally provided with a gas discharge device consisting of an umbrella-shaped gas collecting hood 6 and a partition wall 3, the middle part of the partition wall 3 below the umbrella-shaped gas collecting hood 6 is provided with a cooling gas discharge port 5, and the cooling gas discharge port 5 is positioned in a space formed by naturally stacking under the umbrella-shaped gas collecting hood 6 in the coke descending cooling process.
In order to uniformly distribute the cooling gas in the dry quenching 1, and simultaneously to fix the umbrella-shaped gas collecting hood 6 and to provide the gas flow guiding-out channel 7, a dividing wall 3 is arranged below the umbrella-shaped gas collecting hood 6. The division wall 3 is supported by a division wall supporting device 4, and the division wall supporting device 4 is fixedly connected with the cone hopper of the dry quenching furnace 1 or the inner wall of the furnace body of the cooling section. The number of the dividing walls 3 is 1 to more, and the dividing walls are used for dividing the cooling section of the dry quenching furnace 1 into 2 or more independent cooling cavities to form a multi-cavity cooling structure.
The cooling gas discharged by the plurality of gas flow guide channels 7 can be respectively collected, can also be collected through the annular gas collecting tube 8, and then enters the dry quenching furnace cooling gas circulation system, and the dry quenching furnace cooling gas circulation system usually comprises a primary dust removal device, a dry quenching boiler, a secondary dust removal device and a circulating fan, and the cooling gas after dust removal and temperature reduction returns to the dry quenching furnace 1 for recycling through the gas supply device 2.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911379208.8A CN111171845B (en) | 2019-12-27 | 2019-12-27 | A coke cooling structure and coke cooling method in a dry quenching furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911379208.8A CN111171845B (en) | 2019-12-27 | 2019-12-27 | A coke cooling structure and coke cooling method in a dry quenching furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111171845A CN111171845A (en) | 2020-05-19 |
| CN111171845B true CN111171845B (en) | 2025-03-04 |
Family
ID=70650480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911379208.8A Active CN111171845B (en) | 2019-12-27 | 2019-12-27 | A coke cooling structure and coke cooling method in a dry quenching furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111171845B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111560261A (en) * | 2020-06-11 | 2020-08-21 | 鞍山华泰环能工程技术有限公司 | Dry quenching furnace |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211595517U (en) * | 2019-12-27 | 2020-09-29 | 中冶焦耐(大连)工程技术有限公司 | A Coke Cooling Structure in a CDQ |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3332702A1 (en) * | 1983-09-10 | 1985-03-28 | Carl Still Gmbh & Co Kg, 4350 Recklinghausen | METHOD FOR DRY COOLING GLUING COOK AND SUITABLE COOK DRY COOLING DEVICE |
| JPH05132674A (en) * | 1991-11-12 | 1993-05-28 | Shinagawa Refract Co Ltd | Structure for supporting partition wall of dry coke quenching equipment |
| JPH1112571A (en) * | 1997-06-21 | 1999-01-19 | Nippon Steel Corp | Dry fire extinguishing method for coke |
| CN201144210Y (en) * | 2007-12-17 | 2008-11-05 | 中冶焦耐工程技术有限公司 | Special gas supply device for dry quenching furnace |
| KR101398362B1 (en) * | 2012-07-17 | 2014-05-22 | 주식회사 포스코 | Apparatus for discharging in cokes dry quenching facilities |
| CN205046042U (en) * | 2015-10-14 | 2016-02-24 | 武汉钢铁(集团)公司 | Ringwall is bulged and is prevented and treated device in dry coke quenching stove |
-
2019
- 2019-12-27 CN CN201911379208.8A patent/CN111171845B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211595517U (en) * | 2019-12-27 | 2020-09-29 | 中冶焦耐(大连)工程技术有限公司 | A Coke Cooling Structure in a CDQ |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111171845A (en) | 2020-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3223816U (en) | New top-fired hot air furnace | |
| WO2010044219A1 (en) | Coke dry quenching facility | |
| CN111171845B (en) | A coke cooling structure and coke cooling method in a dry quenching furnace | |
| CN107238295A (en) | A kind of roaster and method of roasting | |
| TW201014902A (en) | Coke dry type extinguishing facility, and coke dry type extinguishing method | |
| CN106802088B (en) | External cooling device and method for thermal state direct reduction iron furnace | |
| CN110437851B (en) | Dry quenching furnace chute structure | |
| CN211595517U (en) | A Coke Cooling Structure in a CDQ | |
| CN101709222B (en) | A new structure of dry quenching furnace shell | |
| CN2913992Y (en) | Molded coal vertical drying kiln | |
| JP6274126B2 (en) | Ferro-coke production equipment | |
| CN111171844B (en) | A dry quenching furnace structure and a coke cooling method in the dry quenching furnace | |
| CN211595518U (en) | A dry quenching furnace structure | |
| CN109762579B (en) | A prefabricated cast block masonry dry quenching coke level meter mounting base | |
| CN210595920U (en) | Novel chute structure of dry quenching furnace | |
| CN214571707U (en) | Dry quenching furnace body structure with processing capacity of 210-230t/h | |
| CN219032079U (en) | A circular air duct with a double-layer inner wall structure | |
| US2454253A (en) | Method of and apparatus for heating stacked bodies | |
| CN216745374U (en) | Central structure of high-yield shaft kiln | |
| CN209778738U (en) | Dry quenching charge level indicator mounting seat that prefabricated piece of pouring was built by laying bricks or stones | |
| WO2013099231A1 (en) | Cooling unit, and cooler provided with same | |
| CN112812790A (en) | Dry quenching furnace body structure with processing capacity of 210-230t/h | |
| CN103897712B (en) | Transverse alternately heating device of vertical coke-extracting type coke oven | |
| WO2006010302A1 (en) | A top-combustion type hot-mast stove with a heat insulation layer in the pre-combust chamber | |
| CN103571506A (en) | Horizontal dry-quenching furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |