CN113293011A - Coke oven head sealing masonry structure and masonry method thereof - Google Patents
Coke oven head sealing masonry structure and masonry method thereof Download PDFInfo
- Publication number
- CN113293011A CN113293011A CN202110602653.7A CN202110602653A CN113293011A CN 113293011 A CN113293011 A CN 113293011A CN 202110602653 A CN202110602653 A CN 202110602653A CN 113293011 A CN113293011 A CN 113293011A
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- sealing
- brick
- type
- coke oven
- door frame
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- 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
- C10B25/00—Doors or closures for coke ovens
- C10B25/02—Doors; Door frames
- C10B25/16—Sealing; Means for sealing
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- 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)
- Coke Industry (AREA)
Abstract
The invention belongs to the field of coke oven heads, and particularly relates to a sealing masonry structure of a coke oven head and a building method thereof. The invention discloses a coke oven head sealing masonry structure, which changes the sealing mode between a traditional oven door frame and a small protection plate, and adopts sealing bricks to replace the traditional ceramic fiber ropes and pouring material for filling, so that smoke can be better prevented from escaping from a gap between the oven door frame and the small protection plate.
Description
Technical Field
The invention belongs to the field of coke oven heads, and particularly relates to a coke oven head sealing masonry structure and a building method thereof.
Background
Along with the prolonging of the furnace life of the coke furnace, the sealing effect of the head part of the coke furnace is deteriorated, and the phenomena of smoke leakage and fire generation are easy to occur. Some coke oven burners are limited by special construction, and the repair or grouting of the burners is difficult to operate.
Therefore, in order to ensure the maintenance of the coke oven head, other modes are needed to realize the maintenance.
Meanwhile, the smoke-emitting part of the traditional coke oven head is originally filled with the ceramic fiber rope and the pouring material, and the pouring material falls off and the ceramic fiber rope is pulverized along with the continuous production operation, so that the sealing performance of the area is damaged, and the phenomena of smoke leakage and fire emission of the oven head occur.
Therefore, in order to facilitate maintenance and reduce or avoid the problem of smoke leakage or fire of the furnace end, a novel repair mode or a novel structure needs to be provided to replace the traditional ceramic fiber rope and casting material structure.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a sealing structure which can replace structures such as ceramic fiber ropes and the like to realize furnace end sealing.
In order to achieve the purpose, the invention adopts the technical scheme that:
the sealing masonry structure of the coke oven head comprises an oven door frame, wherein a small protection plate is arranged above the oven door frame, and the oven door frame is connected with the small protection plate through sealing bricks.
The sealing bricks comprise first-class sealing bricks and second-class sealing bricks, and the first-class sealing bricks are connected with the second-class sealing bricks through sealing pugs.
The sealing brick is formed by splicing a first-class sealing brick and a second-class sealing brick in a staggered lap joint mode, and the first-class sealing brick and the second-class sealing brick are connected through sealing pugs; the length of the sealing brick is not less than that of the furnace door frame.
The first-class sealing bricks comprise first-class brick bodies, and first-class lap joints are arranged on the first-class brick bodies; the second type of sealing brick comprises a second type of brick body, wherein a second type of lap joint notch is arranged on the second type of brick body, and a first type of lap joint notch and a second type of lap joint notch are oppositely arranged at intervals to form a mud groove when the first type of sealing brick is lapped with the second type of sealing brick.
The mud material groove comprises a middle groove, and two ends of the middle groove are respectively communicated with the outer side surface of the sealing brick through transition grooves; the horizontal section of the mud groove is of a bent structure.
The width of the middle groove is larger than that of the transition groove.
And the first-class brick body is provided with a filling gap.
A castable is arranged in the filling gap; the length of the sealing brick is greater than that of the furnace door frame.
The side surface of the furnace door frame is connected with a large protection plate; and a graphite packing is arranged between the furnace door frame and the large protection plate.
A method for building a coke oven head sealing masonry structure,
the masonry method comprises the following steps;
step 1: determining the size of a space between the small protection plate and the furnace door frame so as to determine the size of the stacking and sealing structure; meanwhile, blowing the area of the furnace door frame where the sealed masonry structure needs to be piled up by using an air pipe;
step 2: after the step 1 is finished, building sealing bricks on the furnace door frame;
and step 3: and after the sealing brick is built, trowelling the sealing brick after the brick is built by using refractory mortar.
The invention has the advantages that:
the invention discloses a coke oven head sealing masonry structure, which changes the sealing mode between a traditional oven door frame and a small protection plate, and adopts sealing bricks to replace the traditional ceramic fiber ropes and pouring material for filling, so that smoke can be better prevented from escaping from a gap between the oven door frame and the small protection plate.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural view of the coke oven head of the present invention assembled thereon.
The labels in the above figures are:
1. the furnace comprises a small protection plate, a large protection plate, a furnace door frame, a sealing brick, a graphite packing and a sealing brick.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
A sealing masonry structure of a coke oven head comprises an oven door frame 3, wherein a small protection plate 1 is arranged above the oven door frame 3, and the oven door frame 3 is connected with the small protection plate 1 through a sealing brick 4; the invention discloses a sealing masonry structure of a coke oven head, which changes the sealing mode and the sealing material between an oven door frame 3 and a small protection plate 1; the sealing brick 4 is matched with the sealing mud, so that the sealing operation of the coke oven head can be realized, and the phenomena of smoke and fire running of the coke oven head can be effectively eliminated.
In addition, the sealing brick 4 can adopt a special refractory brick, and the sealing mud can adopt high-strength refractory mud; the selection can be specifically carried out according to the needs.
Further, the sealing brick 4 comprises a first type sealing brick 42 and a second type sealing brick 41, wherein the first type sealing brick 42 is connected with the second type sealing brick 41 through a sealing pug 43; according to the invention, the first-class sealing bricks 42 and the second-class sealing bricks 41 are matched, and then the sealing pugs 43 are matched, so that the assembly of the sealing bricks 4 can be realized; in actual arrangement, the two first-class sealing bricks and the two second-class sealing bricks are generally adopted, the two first-class sealing bricks are arranged in the middle, and the two first-class sealing bricks are distributed on two sides of the two second-class sealing bricks.
In addition, the sealing brick 4 in the present invention may have a plurality of first-type sealing bricks 42 and one second-type sealing brick 41; generally, the distribution mode is adopted, and two first-class sealing bricks and one second-class sealing brick are adopted; the first-class sealing brick and the second-class sealing brick are made of the same material and have different structures, and the arrangement is convenient for the lap joint between the first-class sealing brick and the second-class sealing brick; meanwhile, in order to ensure the length of the sealing brick 4, the lengths of the first-class sealing brick 42 and the second-class sealing brick 41 can be increased, and finally the control of the total length of the sealing brick 4 is realized, in addition, during actual assembly, the sealing brick 4 comprises two first-class sealing bricks 42 and one second-class sealing brick 41, the two first-class sealing bricks 42 are distributed on two sides of the two second-class sealing bricks 41, and then the connection between the first-class sealing bricks 42 and the second-class sealing bricks 41 is realized through sealing mud materials 43; meanwhile, in the present invention, the sealing brick 4 and the adjacent components can be sealed by refractory mortar or the above-mentioned sealing mortar 43.
Furthermore, the sealing brick 4 is formed by splicing a first type sealing brick 42 and a second type sealing brick 41 in a staggered overlapping manner, and in addition, the first type sealing brick 42 and the second type sealing brick 41 are connected in the staggered overlapping manner; the staggered overlapping mode can realize that the joint of the first-class sealing brick 42 and the second-class sealing brick 41 is in a labyrinth structure, so that the overflow and dispersion difficulty of smoke dust is increased; in addition, in order to ensure the connection of the first-class sealing brick 42 and the second-class sealing brick 41, the first-class sealing brick 42 and the second-class sealing brick 41 are connected through a sealing pug 43; the sealing sludge 43 mainly comprises AI2O3Si C and Fe2O3The invention can provide proper bonding strength for the sealing pug 43 through the matching of the materials; meanwhile, the flame generally extends along a straight line, and the labyrinth structure is adopted, so that the flame can be prevented from emerging.
In addition, further, the length of the sealing brick 4 is not less than that of the furnace door frame 3; by adopting the arrangement, the sealing brick 4 can provide a larger protection range, and the problem of smoking or firing between the furnace door frame 3 and the small protection plate 1 can be better avoided.
Further, the first-class sealing bricks 42 comprise first-class brick bodies, and first-class lap gaps 4-2 are formed in the first-class brick bodies; the second-class sealing brick 41 comprises a second-class brick body, wherein a second-class overlap notch 4-1 is arranged on the second-class brick body, and the first-class overlap notch 4-2 and the second-class overlap notch 4-1 are arranged, so that when the first-class brick body and the second-class brick body are overlapped, the first-class overlap notch 4-2 and the second-class overlap notch 4-1 can be oppositely arranged to form a labyrinth structure, the protection capability is improved, and smoke head emission at the joint of the first-class brick body and the second-class brick body is avoided; meanwhile, when the first-class sealing brick 42 and the second-class sealing brick 41 are lapped, the first-class lapping gap 4-2 and the second-class lapping gap 4-1 are oppositely arranged at intervals to form a mud groove 44; the mud groove 44 is arranged, so that the subsequent filling of the sealing mud 43 is facilitated; meanwhile, in the invention, the mud groove 44 comprises a middle groove 442, and two ends of the middle groove 442 are respectively communicated with the outer side surface of the sealing brick 4 through transition grooves 441; the horizontal section of the mud groove 44 is of a bent structure; by adopting the arrangement, the middle groove 442 and the transition grooves 441 form a structure with a lightning-shaped horizontal section, the arrangement increases the smoke dust overflow path, thereby increasing the overflow difficulty, and meanwhile, the two transition grooves 441 are distributed in a staggered manner in the invention, thereby basically avoiding the problem of fire.
In addition, the intermediate groove 442 has a width greater than that of the transition groove 441 in the present invention; the width of the middle groove 442 is increased, so that the first-class brick body and the second-class brick body can be connected; the quantity and the volume of the sealing mud 43 can be increased in the middle of the brick body connection, so that the middle of the brick bodies is connected more tightly, and the stable connection between the brick bodies is increased; meanwhile, the manufacturing precision of the overlapping gaps of the brick bodies can be reduced, and the subsequent filling and repairing of sealing pug are facilitated; meanwhile, the change of the thickness of the sealing pug also plays a good role in isolation.
Furthermore, the brick body of the first kind is provided with a filling gap 45; the filling gap 45 is filled with a casting material 451; the arrangement of the filling gap 45 facilitates the filling of the castable 451 or the sealing pug 43 and the brick body, and simultaneously plays a role in isolation; the problem of smoke leakage or fire generation at the end part of the sealing brick 4 is avoided; the pouring material can be conventional pouring material or the sealing mud 43, and the sealing mud 43 can play a role in plugging and is convenient for connecting the sealing brick 4 with the adjacent part on the side surface.
Furthermore, the side surface of the furnace door frame 3 is connected with a large protection plate 2; a graphite packing 5 is arranged between the furnace door frame 3 and the large protection plate 2; according to the invention, the graphite packing 5 is filled between the furnace door frame 3 and the large protection plate 2, and the graphite packing 5 plays a good plugging role; thereby improving the sealing performance between the large protection plate 2 and the furnace door frame 3.
A method for building a coke oven head sealing masonry structure,
the masonry method comprises the following steps;
step 1: determining the space size between the small protection plate 1 and the furnace door frame 3, and further determining the size of the stacking and sealing structure; meanwhile, blowing the area of the furnace door frame 3 needing to be piled with the sealing masonry structure by using an air pipe;
step 2: after the step 1 is finished, building a sealing brick 4 on the furnace door frame 3;
and step 3: and after the sealing brick 4 is built, the sealing brick 4 after being built is trowelled by using refractory mortar.
By the aid of the building method, building of the sealed masonry structure can be further achieved.
As shown in the figure, the space between the top of the furnace door frame 3 and the small protection plate 1 is filled with ceramic fiber ropes and pouring materials, and the sealing bricks 4 are adopted to replace the ceramic fiber ropes and the pouring materials; the first class sealing brick 42 and the second class sealing brick 41 of the sealing brick 4 are occluded by adopting front and back staggered joints, the smoke is prevented from escaping along the traditional straight joint channel, and the occlusion strength and the stability of a masonry structure are effectively improved by combining sealing pug 43 (high-strength refractory pug).
As shown, the gaps on both sides of one type of brick 42 are filled with a castable material 451.
The gap between the large protection plate 2 and the furnace door frame 3 is filled with a graphite packing 5 with excellent performance, so that the sealing performance is improved.
The specific implementation steps are as follows:
firstly, dismantling a protective plate fixed on the top of a furnace door frame 3;
secondly, cleaning sundries such as ceramic fiber ropes at the furnace head part and the filled castable 451;
thirdly, the exposed part of the masonry structure is swept completely by an air pipe, and the space above the furnace door frame 3 is swept, namely the area on the furnace door frame 3, in which the sealed masonry structure needs to be piled, is swept;
fourthly, a gap between the large protection plate and the furnace door frame 3 is filled with a graphite packing 5 with excellent use performance;
fifthly, pointing the furnace end masonry, and then integrally brushing the furnace end masonry with the refractory mortar once;
sixthly, building special-shaped bricks to ensure that mortar is full, and uniformly stirring refractory mortar by using 30% phosphoric acid;
and seventhly, trowelling the furnace end after the brick is built by using the refractory mortar after the building is finished.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (10)
1. The sealing masonry structure for the coke oven head is characterized by comprising an oven door frame, wherein a small protection plate is arranged above the oven door frame, and the oven door frame is connected with the small protection plate through sealing bricks.
2. The coke oven head seal masonry structure according to claim 1, wherein the seal bricks comprise a first type of seal brick and a second type of seal brick, and the first type of seal brick is connected with the second type of seal brick through a seal mud material.
3. The coke oven head sealing masonry structure according to claim 2, wherein the sealing bricks are formed by splicing a first type of sealing bricks and a second type of sealing bricks in a staggered overlapping manner, and the first type of sealing bricks and the second type of sealing bricks are connected through sealing pugs.
4. The coke oven head sealing masonry structure according to claim 2, wherein the one type of sealing brick comprises one type of brick body, and the one type of brick body is provided with one type of overlapping notch; the second type of sealing brick comprises a second type of brick body, wherein a second type of lap joint notch is arranged on the second type of brick body, and a first type of lap joint notch and a second type of lap joint notch are oppositely arranged at intervals to form a mud groove when the first type of sealing brick is lapped with the second type of sealing brick.
5. The coke oven head sealing masonry structure of claim 4, wherein the mud groove comprises an intermediate groove, and two ends of the intermediate groove are respectively communicated with the outer side surface of the sealing brick through transition grooves; the horizontal section of the mud groove is of a bent structure.
6. The coke oven head seal masonry structure according to claim 5, wherein the intermediate groove width is greater than the transition groove width.
7. The coke oven head sealing masonry structure according to claim 4, characterized in that the bricks of one kind are provided with filling gaps.
8. The coke oven head sealing masonry structure according to claim 7, characterized in that a castable material is arranged in the filling gap; the length of the sealing brick is not less than that of the furnace door frame.
9. The coke oven head sealing masonry structure of claim 1, wherein a large protection plate is connected to a side surface of the oven door frame; and a graphite packing is arranged between the furnace door frame and the large protection plate.
10. The method for building the coke oven head seal masonry structure according to claim 1, wherein the method for building the coke oven head seal masonry structure comprises the following steps;
step 1: determining the size of a space between the small protection plate and the furnace door frame so as to determine the size of the stacking and sealing structure; meanwhile, blowing the area of the furnace door frame where the sealed masonry structure needs to be piled up by using an air pipe;
step 2: after the step 1 is finished, building sealing bricks on the furnace door frame;
and step 3: and after the sealing brick is built, trowelling the sealing brick after the brick is built by using refractory mortar.
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| CN202110602653.7A CN113293011B (en) | 2021-05-31 | 2021-05-31 | Coke oven head sealing masonry structure and masonry method thereof |
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| CN202110602653.7A CN113293011B (en) | 2021-05-31 | 2021-05-31 | Coke oven head sealing masonry structure and masonry method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114540048A (en) * | 2022-03-07 | 2022-05-27 | 马鞍山钢铁股份有限公司 | Improvement method of large coke oven head |
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| CN111187631A (en) * | 2019-09-29 | 2020-05-22 | 马鞍山钢铁股份有限公司 | Repair material for mouth structure of coke oven machine and use method thereof |
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| CN114540048A (en) * | 2022-03-07 | 2022-05-27 | 马鞍山钢铁股份有限公司 | Improvement method of large coke oven head |
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