CN105482831A - Improvement method for laying of corbel pillar bricks of coke dry quenching furnace - Google Patents
Improvement method for laying of corbel pillar bricks of coke dry quenching furnace Download PDFInfo
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- CN105482831A CN105482831A CN201410479679.7A CN201410479679A CN105482831A CN 105482831 A CN105482831 A CN 105482831A CN 201410479679 A CN201410479679 A CN 201410479679A CN 105482831 A CN105482831 A CN 105482831A
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Abstract
The invention relates to an improvement method for laying of corbel pillar bricks of a coke dry quenching furnace. The improvement method is characterized by comprising the following steps of: a, investigation and analysis of the breakage of the corbel pillar bricks of the coke dry quenching furnace; and b, laying improvement of the corbel pillar bricks of the coke dry quenching furnace: (1) material improvement of the corbel pillar bricks of the coke dry quenching furnace and (2) laying structure improvement of the corbel pillar bricks of the coke dry quenching furnace. The improvement method for the laying of the corbel pillar bricks of the coke dry quenching furnace, disclosed by the invention, has the advantages that the difficult problem that the corbel pillar bricks of the coke dry quenching furnace are frequent to break, the service life of the corbel pillar bricks is prolonged, the room-temperature pressure-resistant strength is high, the high-temperature rupture strength is high, the engineering cost is reduced, and the production time of the coke dry quenching furnace is prolonged.
Description
Technical field
The present invention relates to and a kind of dryly put out stove bracket building method, specifically, is that a kind of dry stove bracket pillar brick masonry that puts out is improved one's methods.
Background technology
Dry quenching(of coke) is an advanced technologies during coking is produced, and has function that is energy-saving and cost-reducing, protection of the environment, can improve coke quality again simultaneously.Dry quenching(of coke) application is more and more extensive.
Dryly put out the major equipment that stove is dry quenching(of coke), the dry resistance to material of stove that puts out is from maintenance position, and bracket position is crucial, and bracket pillar brick brick will bear the weight (about 220-260t) of the inner resistance to material of top partition wall and ring air channel on the one hand; Bracket position refractory materials work under bad environment on the other hand, long-term by temperature fusion, rapid heat cycle, the impacts such as blast air washes away, the friction of coke, chemical etching effect, cause the pillar brick fracture of bracket position thus, be the whole dry life-span bottleneck putting out the resistance to material of furnace body, the life-span is only more than about 1 year.
Therefore the known dry stove bracket pillar brick that puts out also exists above-mentioned all inconvenience and problem.
Summary of the invention
Object of the present invention, be to propose a kind of adaptation Gan Xilu bracket district production technique, long service life, the dry stove bracket pillar brick masonry that puts out of cost savings is improved one's methods.
For achieving the above object, technical solution of the present invention is:
A kind of dry stove bracket pillar brick masonry that puts out is improved one's methods, and it is characterized in that comprising the following steps:
A, dryly put out stove bracket pillar brick Investigation on damage and analysis
(1) the damaged feature of head-on brick of bracket pillar brick: the construction of smelting coke dry quenching furnace and maintenance engineering technique center platform in utilization, the dry breakage putting out stove bracket pillar brick of producer is used to carry out long-term follow, statistics, analysis to each dry stove that puts out, show that the dry stove bracket pillar brick that puts out is damaged frequent, the breakage analyzing the head-on brick drawing bracket pillar brick is further particularly serious;
(2) bracket pillar brick structure damaging features: chute of dry quenching furnace bracket pillar brick amounts to 10-13 layer, is highly 1000-1300mm; Bracket pillar brick bottom and the top temperature difference make bracket pillar brick there is the thermograde of nearly 700 DEG C, cause refractory materials internal stress to be assembled; At coke from top to bottom, in rare gas element moving process from bottom to top, bracket pillar brick subjects the shock of coke, wearing and tearing, the washing away of air-flow and dust;
(3) bracket pillar brick structure loading characteristic: bracket pillar brick will bear the 220-260t weight of the inner resistance to material of top partition wall and ring air channel, due to the dry constructional feature putting out stove bracket, its main stress point is the brick that heads on;
(4) the material feature of bracket pillar brick: the physical and chemical index of the refractory brick of bracket pillar brick is analyzed, leading indicator: a, cold crushing strength 60-80Mpa; B, at 1100 DEG C, under the condition of water-cooled, after 18-25 thermal shock test, compressive strength remains unchanged;
B, the dry stove bracket pillar brick masonry that puts out improve
(1) the dry material improvement putting out stove bracket pillar brick
Wear-resisting prefabricated section is made, wear-resisting prefabricated section physics and chemistry leading indicator: a, cold crushing strength 100-120Mpa in refractory materials producer; B, at 1100 DEG C, under the condition of water-cooled, after 35-40 thermal shock test, compressive strength remains unchanged; C, high temperature break resistant intensity 15-17Mpa; Heat-resistance stainless steel reinforcing bar is added as skeleton in wear-resisting prefabricated section;
(2) the dry masonry construction putting out stove bracket pillar brick improves
The dry head-on brick putting out stove bracket pillar brick is all used wear-resisting prefabricated section instead and is built by laying bricks or stones, and rest part still uses laying fireproof bricks.
The dry stove bracket pillar brick masonry that puts out of the present invention is improved one's methods and can also be further achieved by the following technical measures.
Aforesaid method, in wherein said step b, wear-resisting prefabricated section adds Stainless Steel Fibre to increase abrasive wear resistance.
Adopt after technique scheme, the dry stove bracket pillar brick masonry that puts out of the present invention is improved one's methods and is had the following advantages:
1, solve and dryly put out a stove bracket pillar brick breakage difficult problem frequently;
2, extend the work-ing life of bracket pillar brick, make that cold crushing strength is large, high temperature break resistant intensity is large;
3, reduce engineering cost, increase and dryly put out the stove production time.
Accompanying drawing explanation
Fig. 1 is the dry texture improvement schematic diagram putting out stove bracket pillar brick of the embodiment of the present invention.
In figure: 1 bracket pillar brick, 2 chute mouths, 3 head on brick, and 4 chutes cross dome brick.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is illustrated further.
Embodiment 1
The dry stove bracket pillar brick masonry that puts out of the present invention is improved one's methods, and it is characterized in that comprising the following steps:
A, dryly put out stove bracket pillar brick Investigation on damage and analysis
(1) the damaged feature of head-on brick of bracket pillar brick: the construction of smelting coke dry quenching furnace and maintenance engineering technique center client during invention is artificial, the dry breakage putting out stove bracket pillar brick of producer is used to follow the tracks of, add up, analyze to each dry stove that puts out for a long time, show that the dry stove bracket pillar brick that puts out is damaged frequent, analyze the head-on brick badly broken of particularly bracket pillar brick further;
(2) bracket pillar brick structure damaging features: chute of dry quenching furnace bracket pillar brick amounts to 13 layers, is highly 1300mm.The temperature of bracket pillar brick bottom is about 300 DEG C, and upper temp is about 1000 DEG C, and bracket pillar brick exists the thermograde of nearly 700 DEG C from down to up, causes refractory materials internal stress to be assembled; At coke from top to bottom, in rare gas element moving process from bottom to top, bracket pillar brick subjects the shock of coke, wearing and tearing, the washing away of air-flow and dust;
(3) bracket pillar brick structure loading characteristic: dry to put out stove bracket pillar brick be key position, bracket pillar brick brick will bear the weight (about 260t) of the inner resistance to material of top partition wall and ring air channel, due to the dry constructional feature putting out stove bracket, main stress point is mainly heading on brick;
(4) the material feature of bracket pillar brick: the physical and chemical index of the former refractory brick of bracket pillar brick is analyzed, leading indicator: a, cold crushing strength 80Mpa; B, at 1100 DEG C, under the condition of water-cooled, after 25 thermal shock tests, compressive strength remains unchanged;
B, the dry stove bracket pillar brick masonry that puts out improve
(1) the dry material improvement putting out stove bracket pillar brick
Wear-resisting prefabricated section is made, wear-resisting prefabricated section physics and chemistry leading indicator: a, cold crushing strength 120Mpa in refractory materials producer; B, at 1100 DEG C, under the condition of water-cooled, after 40 thermal shock tests, compressive strength remains unchanged; C, high temperature break resistant intensity 17Mpa; Heat-resistance stainless steel reinforcing bar is added as skeleton in wear-resisting prefabricated section;
(2) the dry masonry construction putting out stove bracket pillar brick improves
Now refer to Fig. 1, Fig. 1 is the dry texture improvement schematic diagram putting out stove bracket pillar brick of the embodiment of the present invention.As shown in the figure, the described dry head-on brick 3 putting out stove bracket pillar brick 1 is all used wear-resisting prefabricated section instead and is built by laying bricks or stones, wear-resisting prefabricated section adds Stainless Steel Fibre to increase abrasive wear resistance, rest part, as the refractory brick of chute mouth 2 and chute cross dome brick 4 still with the former dry laying fireproof bricks putting out stove bracket pillar.
The present invention has substantive distinguishing features and significant technical progress, and the dry stove bracket pillar brick masonry that puts out of the present invention is improved one's methods and adapted to Gan Xilu bracket district production technique, the long service life of wear-resisting prefabricated section, saves maintenance cost.
Certain coke-oven plant of steel mill dry coke quenching 125t/h, is divided into 36 bracket structures, within 2008, is constructed and put into operation, 24 bracket pillar brick well damages during maintenance in 2010, and mainly the head-on brick of bracket pillar brick damages, and brings hidden danger to safety in production.Adopt the dry stove bracket pillar brick masonry that puts out of the present invention to improve one's methods, the dry stove bracket pillar brick that puts out adopts furred ceiling measure to change, and the brick that headed on by bracket pillar brick changes wear-resisting prefabricated section into, then when maintenance in 2012, finds that 36 brackets are intact.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or change.Therefore, all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (2)
1. the dry stove bracket pillar brick masonry that puts out is improved one's methods, and it is characterized in that comprising the following steps:
A, dryly put out stove bracket pillar brick Investigation on damage and analysis
(1) the damaged feature of head-on brick of bracket pillar brick: the construction of smelting coke dry quenching furnace and maintenance engineering technique center platform in utilization, the dry breakage putting out stove bracket pillar brick of producer is used to carry out long-term follow, statistics, analysis to each dry stove that puts out, show that the dry stove bracket pillar brick that puts out is damaged frequent, the breakage analyzing the head-on brick drawing bracket pillar brick is further particularly serious;
(2) bracket pillar brick structure damaging features: chute of dry quenching furnace bracket pillar brick amounts to 10-13 layer, is highly 1000-1300mm; Bracket pillar brick bottom and the top temperature difference make bracket pillar brick there is the thermograde of nearly 700 DEG C, cause refractory materials internal stress to be assembled; At coke from top to bottom, in rare gas element moving process from bottom to top, bracket pillar brick subjects the shock of coke, wearing and tearing, the washing away of air-flow and dust;
(3) bracket pillar brick structure loading characteristic: bracket pillar brick will bear the 220-260t weight of the inner resistance to material of top partition wall and ring air channel, due to the dry constructional feature putting out stove bracket, its main stress point is the brick that heads on;
(4) the material feature of bracket pillar brick: the physical and chemical index of the refractory brick of bracket pillar brick is analyzed, leading indicator: a, cold crushing strength 60-80Mpa; B, at 1100 DEG C, under the condition of water-cooled, after 18-25 thermal shock test, compressive strength remains unchanged;
B, the dry stove bracket pillar brick masonry that puts out improve
(1) the dry material improvement putting out stove bracket pillar brick
Wear-resisting prefabricated section is made, wear-resisting prefabricated section physics and chemistry leading indicator: a, cold crushing strength 100-120Mpa in refractory materials producer; B, at 1100 DEG C, under the condition of water-cooled, after 35-40 thermal shock test, compressive strength remains unchanged; C, high temperature break resistant intensity 15-17Mpa; Heat-resistance stainless steel reinforcing bar is added as skeleton in wear-resisting prefabricated section;
(2) the dry masonry construction putting out stove bracket pillar brick improves
The dry head-on brick putting out stove bracket pillar brick is all used wear-resisting prefabricated section instead and is built by laying bricks or stones, and rest part still uses laying fireproof bricks.
2. the dry stove bracket pillar brick masonry that puts out is improved one's methods as claimed in claim 1, it is characterized in that, in described step b, wear-resisting prefabricated section adds Stainless Steel Fibre to increase abrasive wear resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410479679.7A CN105482831A (en) | 2014-09-19 | 2014-09-19 | Improvement method for laying of corbel pillar bricks of coke dry quenching furnace |
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| CN201410479679.7A CN105482831A (en) | 2014-09-19 | 2014-09-19 | Improvement method for laying of corbel pillar bricks of coke dry quenching furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106833685A (en) * | 2017-02-24 | 2017-06-13 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke dry quenching furnace bracket structure |
| CN113583689A (en) * | 2021-06-18 | 2021-11-02 | 中国五冶集团有限公司 | Novel bracket structure of inclined air duct of coke dry quenching furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106833685A (en) * | 2017-02-24 | 2017-06-13 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke dry quenching furnace bracket structure |
| CN113583689A (en) * | 2021-06-18 | 2021-11-02 | 中国五冶集团有限公司 | Novel bracket structure of inclined air duct of coke dry quenching furnace |
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Application publication date: 20160413 |