CN113755187A - A kind of corbel structure in chute area of CDQ coke oven - Google Patents
A kind of corbel structure in chute area of CDQ coke oven Download PDFInfo
- Publication number
- CN113755187A CN113755187A CN202111153915.2A CN202111153915A CN113755187A CN 113755187 A CN113755187 A CN 113755187A CN 202111153915 A CN202111153915 A CN 202111153915A CN 113755187 A CN113755187 A CN 113755187A
- Authority
- CN
- China
- Prior art keywords
- corbel
- bracket
- brick
- dry quenching
- support
- 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 abstract description 6
- 239000011449 brick Substances 0.000 claims abstract description 49
- 238000010791 quenching Methods 0.000 claims description 36
- 230000000171 quenching effect Effects 0.000 claims description 36
- 239000004570 mortar (masonry) Substances 0.000 claims description 29
- 239000011819 refractory material Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000002002 slurry Substances 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
- 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)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
本发明涉及一种干熄焦炉斜道区牛腿结构，牛腿结构由多层牛腿砖砌筑而成；相邻2层牛腿砖之间设有若干支撑件，支撑件为硬质支撑件，其厚度与灰缝的厚度相同，支撑件的顶面与上层牛腿砖直接接触，支撑件的底面与下层牛腿砖直接接触。本发明通过在牛腿砖层间的耐火泥浆灰缝中放置支撑件，有效防止由于牛腿灰缝变形及牛腿标高控制不准确导致的环形风道下沉及斜道分隔墙开裂的问题，提高干熄焦炉的砌筑质量及使用寿命。
The invention relates to a corbel structure in the chute area of a CDQ oven. The corbel structure is made of multi-layer corbel bricks; a plurality of supporting parts are arranged between two adjacent layers of corbel bricks, and the supporting parts are rigid The thickness of the support piece is the same as the thickness of the ash joint, the top surface of the support piece is in direct contact with the upper corbel brick, and the bottom surface of the support piece is in direct contact with the lower corbel brick. The invention can effectively prevent the problems of the subsidence of the annular air duct and the cracking of the inclined channel partition wall caused by the deformation of the ash joint of the corbel and the inaccurate control of the elevation of the corbel by placing the support in the refractory mud ash joint between the corbel brick layers. Improve the masonry quality and service life of CDQ coke ovens.
Description
Technical Field
The invention relates to the technical field of dry quenching furnaces, in particular to a bracket structure of a chute area of a dry quenching furnace.
Background
The dry quenching has the functions of saving energy, reducing consumption, protecting environment and improving coke quality, and is more and more widely applied in recent years. The dry quenching furnace is key equipment of a dry quenching technology and comprises a prestoring area, an annular air duct area, a chute area and a cooling area from top to bottom, wherein the bracket of the chute area 1 is built by a plurality of layers of bracket bricks 2 (as shown in figure 1) and is an important structure for supporting an annular wall in the dry quenching furnace. In actual production, the bracket is easy to wear, crack and even collapse due to the reasons of heavy bearing, frequent fluctuation of operating temperature, long-term scouring by high-temperature coke in a dry quenching furnace and high-temperature circulating airflow containing coke powder and the like, and is a bottleneck for determining the service life of the refractory material of the dry quenching furnace. The bracket needs to be frequently overhauled in the current production process, so that the production efficiency of dry quenching is greatly reduced, and the production cost is increased.
The service life of the bracket of the chute is related to the structure of the bracket, the selection of refractory materials, the masonry quality, production operation and other factors. In recent years, many attempts have been made to prolong the service life of corbels by improving the masonry quality, for example, chinese patent applications with publication numbers CN106833685A, CN 106833684a and CN 106833686A, which respectively describe several dry quenching corbel structures, and prevent the corbel bricks from breaking due to the erosion of air flow to the ash joint in the production process by adopting a method of further feeding a corbel facing brick structure or coating a castable outside the corbel. Chinese patent applications CN 101928575A, CN 107129814a and CN 101948697a respectively describe methods for controlling the construction of chute areas of dry quenching furnaces, and improve the construction quality of chute areas by controlling the elevation, flatness, central axis, mortar fullness, and supporting arc arches of corbels.
During construction and production, the refractory slurry for building the coke dry quenching furnace is generally thinner, so that the elevation control through the mortar joint is difficult; in addition, because the moisture in the mortar joints between the refractory bricks is volatilized slowly, the actual cold strength of the mortar is low, and the mortar can be completely solidified and sintered only by a baking furnace. The bracket of the chute needs to support the weight of the annular wall in the annular air duct area, and if the fire clay in the mortar joint of the bracket area cannot be completely cured, the bracket of the chute is easy to deform, so that the annular air duct area sinks, and the masonry quality of the dry quenching furnace is affected. On-site discovery shows that after a plurality of dry quenching furnaces are built in a cold state, cracks with different sizes appear on the top of a chute partition wall of the dry quenching furnaces, the width of some cracks even reaches more than 20mm, and the service life of the dry quenching furnaces is seriously influenced; the reason is caused by the fact that the bracket mortar joint fire mud is not dry and the annular air duct zone sinks.
Disclosure of Invention
The bracket structure of the chute area of the dry quenching furnace provided by the invention has the advantages that the problems of annular air duct sinking and chute partition wall cracking caused by bracket mortar joint deformation and inaccurate bracket elevation control are effectively prevented by arranging the supporting piece in the refractory mortar joint between the bracket brick layers, the building quality of the dry quenching furnace is improved, and the service life of the dry quenching furnace is prolonged.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bracket structure of a chute area of a dry quenching furnace is characterized in that the bracket structure is built by a plurality of layers of bracket bricks; be equipped with a plurality of support piece between 2 adjacent layers of bracket brick, support piece is stereoplasm support piece, and its thickness is the same with the thickness of ash joint, support piece's top surface and upper bracket brick direct contact, support piece's bottom surface and lower floor bracket brick direct contact.
The thickness of support piece is 2 ~ 5mm, and divide into multiple specification according to thickness, and the support piece that corresponds thickness is selected for use according to its elevation on different bracket brick layers.
The supporting pieces are strip-shaped supporting pieces or plate-shaped supporting pieces, and at least 2 supporting pieces are arranged on the same bracket brick; wherein the strip-shaped supporting pieces are arranged at intervals, and the same strip-shaped supporting piece spans over 2 adjacent bracket bricks along the transverse direction or the longitudinal direction; the plate-shaped supporting pieces are uniformly arranged on the same bracket brick at intervals.
The plate-shaped support is circular or polygonal in outline.
The distance between the supporting piece and the edge of the rest brick joints or corbel bricks is at least 20mm except the brick joints where the supporting piece spans, namely the supporting piece is embedded in the mortar joints.
The supporting piece is made of heat-resistant stainless steel or hard refractory materials.
Compared with the prior art, the invention has the beneficial effects that:
the quality problems of annular air ducts, sinking of brickworks in the chute area, cracks on the upper part of the chute partition wall and the like caused by deformation of mortar joints of the brackets of the chute in the building process of the dry quenching furnace can be fundamentally solved; meanwhile, the size of the bracket ash joint can be adjusted by changing the thickness of the supporting piece, so that the elevation of the dry quenching bracket is accurately adjusted, and the problem that the bracket elevation is difficult to control due to deformation of the ash joint is solved; effectively improves the masonry quality of the dry quenching furnace, prolongs the service life of the dry quenching furnace and improves the service efficiency of the dry quenching furnace.
Drawings
FIG. 1 is a schematic view of a corbel structure in a chute area of a dry quenching furnace according to the present invention.
Fig. 2 is a schematic view showing a first arrangement of the supporting member according to the present invention.
Fig. 3 is a schematic view of the arrangement of the supporting member according to the present invention.
Fig. 4 is a third schematic view of the arrangement of the supporting member according to the present invention.
In the figure: 1. chute area 2, corbel brick 3, mortar joint 4, supporting piece 5, brick joint 6 at crossing position and other brick joints
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in figure 1, the invention is a bracket structure of a chute area of a dry quenching furnace, and the bracket structure is built by a plurality of layers of bracket bricks 2; as shown in fig. 2-4, a plurality of supporting members 4 are arranged between the adjacent 2 layers of corbel bricks 2, the supporting members 4 are hard supporting members, the thickness of the supporting members 4 is the same as that of the mortar joints 3, the top surfaces of the supporting members 4 are in direct contact with the upper layer of corbel bricks, and the bottom surfaces of the supporting members 4 are in direct contact with the lower layer of corbel bricks.
The thickness of support piece 4 is 2 ~ 5mm, and divide into multiple specification according to thickness, and support piece 4 that corresponds thickness is selected for use according to its elevation on different bracket brick layers.
The supporting pieces 4 are strip-shaped supporting pieces or plate-shaped supporting pieces, and at least 2 supporting pieces 4 are arranged on the same corbel brick 2; wherein the strip-shaped supporting pieces are arranged at intervals, and the same strip-shaped supporting piece spans the adjacent 2 corbel bricks 2 along the transverse direction or the longitudinal direction (as shown in fig. 2 and 3); the plate-like supports are evenly spaced on the same corbel tile 2 (as shown in figure 4).
The plate-shaped support is circular or polygonal in outline.
The distance of the support 4 from the remaining brick joints 6 or the edge of the corbel brick 2 is at least 20mm, except for the brick joint 5 where it crosses, i.e. the support 4 is embedded in the mortar joint 3.
The support 4 is made of heat-resistant stainless steel or hard refractory material.
As shown in figure 1, the bracket structure of the chute area 1 of the dry quenching furnace consists of a plurality of layers of bracket bricks 2, and mortar joints 3 are formed by refractory mortar when the bracket bricks 2 are built. In the corbel masonry process, the hard supporting pieces 4 are placed in the mortar joints 3 among the corbel brick layers, the thickness of each supporting piece 4 is the same as that of each mortar joint 3, the corbel bricks 2 are in hard contact with the supporting pieces 4 in the mortar joints 3, and the mortar joints 3 are guaranteed not to deform under the support of the supporting pieces 4.
Preferably, 2 supporting members 4 are placed on each corbel block 2 at least at intervals to ensure the stability and flatness of the corbel block layer and prevent the corbel block 2 from being inclined due to single-point or single-side support.
The thickness of support piece 4 divide into several kinds of specifications, preferably four kinds of specifications of 2mm, 3mm, 4mm and 5mm, and required support piece 4's thickness is selected according to its elevation in each layer bracket brick layer to realize the accurate adjustment of 3 thicknesses of mortar joint. When the size of the bracket brick 2 or the elevation of the process shell has deviation to cause inconsistency of the elevation of the bracket, the height of the mortar joint 3 can be adjusted by adopting the supporting pieces 4 with different thicknesses in an auxiliary mode, and the problems that the mortar joint 3 is deformed and the elevation of the bracket is difficult to control due to large mortar flowability are avoided.
The support 4 needs to be completely embedded in the ash joint 3, and the distance between the support 4 and the edge of the ash joint 3 is at least 20mm, so that the ash joint 3 is prevented from generating a gap due to erosion of high-temperature airflow to the support 4 during the thermal-state production of the dry quenching furnace.
The support 4 may be a strip support, and the strip support may be placed in a longitudinal or transverse direction (as shown in fig. 2, 3). The support 4 may also be a plate-like support of circular or other shape, as shown in fig. 4.
The supporting piece 4 can be made of heat-resistant metal materials such as heat-resistant stainless steel and the like, and can also be made of hard refractory materials such as ceramic refractory materials and the like, and the supporting piece 4 needs to have certain cold-state compressive strength but has low requirement on the corrosion resistance because the supporting piece 4 is wrapped in the mortar joint 3 and only needs to play a supporting role in a cold state; after the furnace is dried, the refractory mortar is solidified, and the mortar joint 3 can play a supporting role.
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 (6)
1. A bracket structure of a chute area of a dry quenching furnace is characterized in that the bracket structure is built by a plurality of layers of bracket bricks; the supporting piece is a hard supporting piece, the thickness of the supporting piece is the same as that of the mortar joint, the top surface of the supporting piece is in direct contact with the upper bracket brick, and the bottom surface of the supporting piece is in direct contact with the lower bracket brick.
2. The bracket structure for the chute area of the dry quenching furnace as claimed in claim 1, wherein the thickness of the support member is 2-5 mm, the support member is divided into a plurality of specifications according to the thickness, and support members with corresponding thickness are selected for different bracket brick layers according to the elevations of the support members.
3. The dry quenching furnace chute bracket structure according to claim 1 or 2, wherein the support is a strip-shaped support or a plate-shaped support, and at least 2 supports are arranged on the same bracket brick; wherein the strip-shaped supporting pieces are arranged at intervals, and the same strip-shaped supporting piece spans over 2 adjacent bracket bricks along the transverse direction or the longitudinal direction; the plate-shaped supporting pieces are uniformly arranged on the same bracket brick at intervals.
4. The dry quenching furnace chute area corbel structure according to claim 3, wherein the plate-like supports are circular or polygonal in profile.
5. The corbel structure for a chute section of a dry quenching furnace as claimed in claim 3, wherein the supports are spaced apart from the edges of the remaining bricks or corbel blocks by a distance of at least 20mm, except for the brick gaps where they cross, i.e. the supports are embedded in the mortar gaps.
6. The corbel structure for a chute section of a dry quenching furnace as claimed in claim 3, wherein the support is made of heat-resistant stainless steel or a hard refractory material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111153915.2A CN113755187B (en) | 2021-09-29 | 2021-09-29 | A bracket structure for the chute area of a dry quenching coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111153915.2A CN113755187B (en) | 2021-09-29 | 2021-09-29 | A bracket structure for the chute area of a dry quenching coke oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113755187A true CN113755187A (en) | 2021-12-07 |
| CN113755187B CN113755187B (en) | 2025-01-07 |
Family
ID=78798295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111153915.2A Active CN113755187B (en) | 2021-09-29 | 2021-09-29 | A bracket structure for the chute area of a dry quenching coke oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113755187B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB801764A (en) * | 1955-07-16 | 1958-09-24 | Hermann Schenck | Improvements relating to industrial furnaces |
| JPH07331245A (en) * | 1994-04-15 | 1995-12-19 | Shinagawa Refract Co Ltd | Method for repairing columnar part of suction zone in coke dry quenching equipment and upper structure of opening for suction zone |
| CN102191066A (en) * | 2010-03-03 | 2011-09-21 | 五冶集团上海有限公司 | Coke dry quenching slope air course supporting brick overhaul construction process |
| CN202968467U (en) * | 2012-12-18 | 2013-06-05 | 攀钢集团攀枝花钢钒有限公司 | Dry quenching bracket brick group |
| CN203258993U (en) * | 2013-04-15 | 2013-10-30 | 中信重工机械股份有限公司 | Chute supporting structure of sinter cooling furnace |
| CN204251553U (en) * | 2014-11-20 | 2015-04-08 | 北京瑞普同创科技发展有限公司 | A kind of coke dry quenching furnace bracket and the section of prestoring middle and lower part regional integration cast structure |
| CN105062515A (en) * | 2015-07-20 | 2015-11-18 | 攀钢集团攀枝花钢钒有限公司 | Dry quenching furnace bracket repairing method |
| CN206502778U (en) * | 2017-02-24 | 2017-09-19 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke dry quenching furnace bracket structure |
| CN216106774U (en) * | 2021-09-29 | 2022-03-22 | 中冶焦耐(大连)工程技术有限公司 | Bracket structure of chute area of coke dry quenching furnace |
-
2021
- 2021-09-29 CN CN202111153915.2A patent/CN113755187B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB801764A (en) * | 1955-07-16 | 1958-09-24 | Hermann Schenck | Improvements relating to industrial furnaces |
| JPH07331245A (en) * | 1994-04-15 | 1995-12-19 | Shinagawa Refract Co Ltd | Method for repairing columnar part of suction zone in coke dry quenching equipment and upper structure of opening for suction zone |
| CN102191066A (en) * | 2010-03-03 | 2011-09-21 | 五冶集团上海有限公司 | Coke dry quenching slope air course supporting brick overhaul construction process |
| CN202968467U (en) * | 2012-12-18 | 2013-06-05 | 攀钢集团攀枝花钢钒有限公司 | Dry quenching bracket brick group |
| CN203258993U (en) * | 2013-04-15 | 2013-10-30 | 中信重工机械股份有限公司 | Chute supporting structure of sinter cooling furnace |
| CN204251553U (en) * | 2014-11-20 | 2015-04-08 | 北京瑞普同创科技发展有限公司 | A kind of coke dry quenching furnace bracket and the section of prestoring middle and lower part regional integration cast structure |
| CN105062515A (en) * | 2015-07-20 | 2015-11-18 | 攀钢集团攀枝花钢钒有限公司 | Dry quenching furnace bracket repairing method |
| CN206502778U (en) * | 2017-02-24 | 2017-09-19 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke dry quenching furnace bracket structure |
| CN216106774U (en) * | 2021-09-29 | 2022-03-22 | 中冶焦耐(大连)工程技术有限公司 | Bracket structure of chute area of coke dry quenching furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113755187B (en) | 2025-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110822895B (en) | Manufacturing process of a stationary molten pool melting furnace | |
| CN216106774U (en) | Bracket structure of chute area of coke dry quenching furnace | |
| JP2013112832A (en) | Skid post and split block for skid post | |
| CN205066456U (en) | Fire -resistant thermal -insulated brickwork is prevented burning with novel by forging furnace | |
| EP2460774A2 (en) | Monolithic chamber for forming floating glass, and construction method | |
| CN113755187B (en) | A bracket structure for the chute area of a dry quenching coke oven | |
| CN202382575U (en) | High-temperature furnace top lining reinforcing beam structure with central flue | |
| CN110455082B (en) | Module structure wall body of high-temperature heating furnace and installation method | |
| CN107892926A (en) | A kind of energy-saving fire door lining brick of coke oven | |
| CN208803104U (en) | Integrated poured blast furnace crucibe | |
| CN108658610A (en) | A kind of casting material prefabricated brick and production method of dry coke quenching slope air course support portion | |
| CN203586823U (en) | Refractory masonry structure for chute inclined surface | |
| CN202182612U (en) | Lining structure of vertical lime pit | |
| CN210595919U (en) | Bipartition form inclined air flue | |
| CN209783294U (en) | A prefabricated block for enhancing radiation heat transfer of steel rolling heating furnace | |
| US2182675A (en) | Metallurgical furnace | |
| CN215250608U (en) | Protection architecture of dry quenching stove chute bracket | |
| CN212504700U (en) | Novel heat insulation structure of coke oven foundation roof | |
| CN101398259B (en) | Bottom flue gas passage structure of electrode calcination furnace with cap | |
| CN206073717U (en) | Composite brick with multiple heat insulation effects for rotary kiln | |
| CN111575026A (en) | Novel heat insulation structure of coke oven foundation roof | |
| CN110452719B (en) | Two-cellular inclined airway | |
| CN217202543U (en) | Full-automatic low-carbon energy-saving environment-friendly long-life lime kiln | |
| CN107782150A (en) | Method for building lining of rotary kiln barrel | |
| CN111560486A (en) | Blast furnace bottom building method for guiding furnace bottom to be in shape of boiler bottom |
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 |