CN108917402B - Furnace top area vertical flame path sealing device and method - Google Patents
Furnace top area vertical flame path sealing device and method Download PDFInfo
- Publication number
- CN108917402B CN108917402B CN201810863159.4A CN201810863159A CN108917402B CN 108917402 B CN108917402 B CN 108917402B CN 201810863159 A CN201810863159 A CN 201810863159A CN 108917402 B CN108917402 B CN 108917402B
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- Prior art keywords
- umbrella
- furnace top
- top area
- mud
- flame path
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- 238000007789 sealing Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 5
- 230000008602 contraction Effects 0.000 claims abstract description 3
- 239000002002 slurry Substances 0.000 claims description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000002419 bulk glass Substances 0.000 claims 1
- 239000000571 coke Substances 0.000 description 7
- 239000003365 glass fiber Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D2001/1605—Repairing linings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention relates to a furnace top area vertical flame path sealing device and a method, wherein the device comprises a mud supporting umbrella and a hand-push mud tank truck; the mud supporting umbrella consists of an umbrella rib bracket, a brace, a connecting support rod, a sleeve, a portable rod and a contraction pull rod, and in a use state, the mud supporting umbrella stretches into a furnace top area vertical flame path, the edge of the fireproof fiber cloth umbrella surface of the mud supporting umbrella is close to the bottom surface of the furnace top wall after being opened, and the bottom of the furnace top area vertical flame path is fully covered for supporting mud; the hand-push mud tank truck is connected with one end of a feeding pipe through a connecting pipe, and the other end of the feeding pipe stretches into an annular space between the vertical flame path of the furnace top area and the sleeve pipe for conveying mud. The invention can quickly and effectively repair the vertical flame path in the furnace top area and prevent mud from leaking into the vertical flame path below; the device has simple structure, easy implementation and good implementation effect.
Description
Technical Field
The invention relates to the technical field of coke oven repair, in particular to a furnace top area vertical flame path sealing device and method.
Background
Because the temperature change of the furnace top area of the coke oven is large, particularly in the oven baking process, the heated is uneven, the expansion coefficients of the silica bricks and the clay bricks are different, cracks are easy to generate, and meanwhile, the phenomenon is aggravated by mechanical impact in the coke pushing process, so that the vertical flame path of the furnace top area is easy to generate blowby, raw gas enters the vertical flame path or a regenerator for combustion, the temperature is uneven, and the brick gas path and the bricks are burned and fused when serious, so that the service life of the coke oven body is directly influenced. In addition, the leaked raw gas is easy to burn incompletely, so that black smoke is emitted from a chimney, the environment is not only endangered, but also the recovery amount of the raw gas produced in a chemical way is reduced, and the product loss and the energy waste are caused.
In the traditional furnace top area vertical flame path hot repair technology, a chassis with the same diameter as the furnace top area vertical flame path is placed at the bottom of the chassis, then mud is poured into the furnace top area vertical flame path, and the mud is supported by the chassis; because the chassis and the side wall of the vertical flame path can certainly have gaps, the phenomenon that slurry falls into the furnace bottom cannot be avoided, the vertical flame path in the furnace top area cannot be effectively repaired, and the slurry leaks into the vertical flame path and easily blocks the inclined path.
Disclosure of Invention
The invention provides a furnace top area vertical flame path sealing device and a furnace top area vertical flame path sealing method, which can quickly and effectively repair a furnace top area vertical flame path and prevent mud from leaking into the vertical flame path below; the device has simple structure, easy implementation and good implementation effect.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
A sealing device for a vertical flame path in a furnace top area comprises a mud supporting umbrella and a hand-push mud tank truck; the mud supporting umbrella consists of a plurality of umbrella rib brackets, a plurality of braces, a connecting support rod, a sleeve, a portable rod and a telescopic pull rod, wherein the connecting support rod is sleeved in the sleeve, one end of the umbrella rib bracket is hinged with one end of the connecting support rod, and the other end of the connecting support rod is connected with the telescopic pull rod; one end of the brace is hinged with the middle part of the corresponding umbrella rib bracket, the other end of the brace is hinged with one end of the sleeve, and the other end of the sleeve is provided with a hand lever; when the connecting support rod is driven by the contraction pull rod to move along the sleeve, the umbrella rib support is opened outwards or folded inwards; the outer side of the umbrella rib bracket is provided with refractory fiber cloth as an umbrella cover; when the slurry supporting umbrella is in use, the slurry supporting umbrella stretches into the vertical flame path in the furnace top area, the edge of the refractory fiber umbrella surface is abutted against the bottom surface of the furnace top wall after being opened, and the bottom of the vertical flame path in the furnace top area is fully covered for supporting slurry; the hand-push mud tank truck is connected with one end of a feeding pipe through a connecting pipe, and the other end of the feeding pipe stretches into an annular space between the vertical flame path of the furnace top area and the sleeve pipe for conveying mud.
The refractory fiber cloth is one of ceramic refractory fiber cloth, silicon dioxide refractory fiber cloth and bulked glass fiber refractory fiber cloth.
The top of the hand push mud tank truck is provided with a charging hole, one side of the lower part of the hand push mud tank truck is provided with a discharging hole which is connected with a connecting pipe, and the connecting pipe is provided with a valve.
The furnace roof area vertical flame path sealing method based on the device comprises the following steps:
1) Adding slurry for repairing the vertical fire path in the furnace top area into the hand-push slurry tank truck through a charging port, wherein the density of the slurry is 1.4-1.6 kg/m 3, moving the hand-push slurry tank truck to the vicinity of the vertical fire path in the furnace top area to be repaired, and connecting a discharging port with a feeding pipe through a connecting pipe;
2) The top of the furnace roof area vertical fire channel is sealed by a movable fire hole cover, and the movable fire hole cover is provided with a through hole for the mud supporting umbrella and the feeding pipe to pass through;
3) After the mud supporting umbrella is folded, the portable rod is held, one end of the umbrella body penetrates through the movable fire hole cover to extend into the vertical fire channel in the furnace top area, and after the umbrella body penetrates through the vertical fire channel in the furnace top area, the umbrella rib support is outwards opened by contracting the pull rod, so that the refractory fiber cloth umbrella cover is unfolded; lifting the hand-held rod to enable the edge of the refractory fiber umbrella surface to be abutted against the bottom surface of the furnace roof wall, and fully covering the bottom of the furnace roof vertical flame path;
4) The feeding pipe penetrates through the movable fire hole cover to extend into the furnace top area vertical fire channel, a valve on the connecting pipe is opened, so that slurry automatically flows into the furnace top area vertical fire channel through the connecting pipe and the feeding pipe, and the slurry is supported at the bottom of the furnace top area vertical fire channel by the opened refractory fiber umbrella cover; the flow speed and the flow rate of the slurry are regulated through the opening degree of the valve; when the slurry overflows from the top of the movable fire hole cover, the valve is closed, and the feeding pipe is taken out from the vertical fire channel in the furnace top area;
5) The mud supporting umbrella is kept still, after 15 minutes, the mud is permeated into cracks of refractory bricks of the vertical flame path in the furnace top area, and the effect of drying by evaporation is achieved, namely, a layer of solidified mud is reserved on the surface of the side wall of the vertical flame path in the furnace top area; the umbrella body is moved downwards, the umbrella rib support is folded by the shrinkage pull rod, and the refractory fiber cloth umbrella cover can be taken out after being shrunk to be smaller than the inner diameter of the vertical flame path at the furnace top area.
Compared with the prior art, the invention has the beneficial effects that:
1) The vertical flame path at the top of the coke oven can be effectively sealed and repaired, the leakage of coke oven gas is prevented, the service life of the coke oven body is prolonged, and the maintenance cost is saved;
2) The adoption of the retractable mud supporting umbrella can prevent mud from falling into the vertical fire path below, so that the cost of secondary cleaning is reduced;
3) The mud is conveyed by the hand-push mud tank truck, the flow and the flow speed of the mud are controlled by the valve, the labor intensity is reduced, and meanwhile, the operation is more convenient and the adjustment is easy.
Drawings
Fig. 1 is a schematic view of a furnace roof zone vertical flame path sealing device according to the present invention (in use).
Fig. 2 is a partial view of fig. 1.
Fig. 3 is a schematic perspective view of fig. 2.
Fig. 4 is a schematic diagram of the structure of the umbrella body of the mud supporting umbrella.
In the figure: 1. the portable rod 2, the shrinkage pull rod 3, the supporting connecting rod 4, the sleeve 5, the rib bracket 6, the brace 7, the refractory fiber umbrella cover 8, the fire-resistant zone vertical fire channel 9, the furnace top wall 10, the movable fire hole cover 11, the feeding pipe 12, the connecting pipe 13, the valve 14, the hand-push mud tank truck 15, the charging port 16 and the mud
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
As shown in fig. 1-3, the furnace top zone vertical fire channel sealing device comprises a mud supporting umbrella and a hand-push mud tank truck 14; the mud supporting umbrella consists of a plurality of umbrella rib brackets 5, a plurality of braces 6, a plurality of connecting support rods 3, a plurality of sleeves 4, a plurality of hand-held rods 1 and a plurality of shrinkage pull rods 2, wherein the umbrella rib brackets 5 and the braces 6 are correspondingly arranged, the connecting support rods 3 are sleeved in the sleeves 4, one ends of the umbrella rib brackets 5 are hinged with one ends of the connecting support rods 3, and the other ends of the connecting support rods 3 are connected with the shrinkage pull rods 2 as shown in fig. 4; one end of the brace 6 is hinged with the middle part of the corresponding rib bracket 5, the other end of the brace is hinged with one end of the sleeve 4, and the other end of the sleeve 4 is provided with a hand lever 1; when the shrinkage pull rod 2 drives the connection support rod 3 to move along the sleeve 4, the umbrella rib support 5 is opened outwards or folded inwards; the outer side of the umbrella rib bracket 5 is provided with refractory fiber cloth as an umbrella cover; in the use state, the mud supporting umbrella stretches into the furnace top area vertical flame path 8, the edge of the refractory fiber umbrella surface 7 is close to the bottom surface of the furnace top wall 9 after being opened, and the bottom of the furnace top area vertical flame path 8 is fully covered for supporting mud 16; the hand propelled mud tanker 14 is connected to one end of a feed pipe 11 by a connecting pipe 12, the other end of the feed pipe 11 extending into the annular space between the roof section vertical fire channel 8 and the casing 4 for transporting mud 16 thereto.
The refractory fiber cloth is one of ceramic refractory fiber cloth, silicon dioxide refractory fiber cloth and bulked glass fiber refractory fiber cloth.
The top of the hand push mud tank truck 14 is provided with a charging port 15, one side of the lower part is provided with a discharging port which is connected with a connecting pipe 12, and the connecting pipe 12 is provided with a valve 13.
The furnace roof area vertical flame path sealing method based on the device comprises the following steps:
1) Adding slurry 16 for repairing the furnace top area vertical flame path 8 into the hand-push slurry tank truck 14 through a charging port 15, wherein the density of the slurry 16 is 1.4-1.6 kg/m 3, moving the hand-push slurry tank truck 14 to the vicinity of the furnace top area vertical flame path 8 to be repaired, and connecting a discharging port with a feeding pipe 11 through a connecting pipe 12;
2) The top of the furnace top area vertical fire channel 8 is sealed by a movable fire hole cover, and the movable fire hole cover is provided with a through hole for the mud supporting umbrella and the feeding pipe to pass through;
3) After the mud supporting umbrella is folded, the portable rod is held, one end of the umbrella body penetrates through the movable fire-viewing hole cover 10 to extend into the furnace top area vertical fire channel 8, and after the umbrella body penetrates through the furnace top area vertical fire channel 8, the umbrella rib support 5 is outwards opened by contracting the pull rod 2, so that the refractory fiber umbrella cover 7 is unfolded; lifting the hand lever 1 to enable the edge of the refractory fiber umbrella surface 7 to abut against the bottom surface of the furnace roof wall 9, and fully covering the bottom of the furnace roof area vertical flame path 8;
4) The feeding pipe 11 penetrates through the movable fire hole cover 10 to extend into the furnace top area vertical fire channel 8, a valve 13 on the connecting pipe 12 is opened, so that slurry 16 automatically flows into the furnace top area vertical fire channel 8 through the connecting pipe 12 and the feeding pipe 11, and the slurry 16 is supported at the bottom of the furnace top area vertical fire channel 8 by the spread refractory fiber umbrella cover 7; the flow speed and the flow rate of the slurry 16 are regulated by the opening of the valve 13; when the slurry 16 overflows from the top of the movable fire hole cover 10, the valve 13 is closed, and the feeding pipe 11 is taken out from the furnace top vertical fire channel 8;
5) The mud supporting umbrella is kept still, after 15 minutes, the mud 16 is permeated into the cracks of the refractory bricks of the vertical flame path 8 in the furnace top area, and the steaming effect is achieved, namely, a layer of solidified mud 16 is finally reserved on the surface of the side wall of the vertical flame path 8 in the furnace top area; the umbrella body is moved downwards, the umbrella rib support 5 is folded by contracting the pull rod 2, and the refractory fiber cloth umbrella cover 7 can be taken out after being contracted to be smaller than the inner diameter of the vertical flame path 8at the furnace top area.
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 (3)
1. The vertical flame path sealing device for the furnace top area is characterized by comprising a mud supporting umbrella and a hand-push mud tank truck; the mud supporting umbrella consists of a plurality of umbrella rib brackets, a plurality of braces, a connecting support rod, a sleeve, a portable rod and a telescopic pull rod, wherein the connecting support rod is sleeved in the sleeve, one end of the umbrella rib bracket is hinged with one end of the connecting support rod, and the other end of the connecting support rod is connected with the telescopic pull rod; one end of the brace is hinged with the middle part of the corresponding umbrella rib bracket, the other end of the brace is hinged with one end of the sleeve, and the other end of the sleeve is provided with a hand lever; when the connecting support rod is driven by the contraction pull rod to move along the sleeve, the umbrella rib support is opened outwards or folded inwards; the outer side of the umbrella rib bracket is provided with refractory fiber cloth as an umbrella cover; when the slurry supporting umbrella is in use, the slurry supporting umbrella stretches into the vertical flame path in the furnace top area, the edge of the refractory fiber umbrella surface is abutted against the bottom surface of the furnace top wall after being opened, and the bottom of the vertical flame path in the furnace top area is fully covered for supporting slurry; the hand-push mud tank truck is connected with one end of a feeding pipe through a connecting pipe, and the other end of the feeding pipe extends into an annular space between the vertical flame path of the furnace top area and the sleeve pipe for conveying mud into the annular space; the top of the hand push mud tank truck is provided with a charging hole, one side of the lower part of the hand push mud tank truck is provided with a discharging hole which is connected with a connecting pipe, and the connecting pipe is provided with a valve.
2. The roof area vertical fire way seal arrangement of claim 1 wherein said refractory fiber cloth is one of a ceramic refractory fiber cloth, a silica refractory fiber cloth, and a bulk glass fiber refractory fiber cloth.
3. A method of sealing a roof section vertical fire path based on the apparatus of claim 1, comprising the steps of:
1) Adding slurry for repairing the vertical fire path in the furnace top area into the hand-push slurry tank truck through a charging port, wherein the density of the slurry is 1.4-1.6 kg/m 3, moving the hand-push slurry tank truck to the vicinity of the vertical fire path in the furnace top area to be repaired, and connecting a discharging port with a feeding pipe through a connecting pipe;
2) The top of the furnace roof area vertical fire channel is sealed by a movable fire hole cover, and the movable fire hole cover is provided with a through hole for the mud supporting umbrella and the feeding pipe to pass through;
3) After the mud supporting umbrella is folded, the portable rod is held, one end of the umbrella body penetrates through the movable fire hole cover to extend into the vertical fire channel in the furnace top area, and after the umbrella body penetrates through the vertical fire channel in the furnace top area, the umbrella rib support is outwards opened by contracting the pull rod, so that the refractory fiber cloth umbrella cover is unfolded; lifting the hand-held rod to enable the edge of the refractory fiber umbrella surface to be abutted against the bottom surface of the furnace roof wall, and fully covering the bottom of the furnace roof vertical flame path;
4) The feeding pipe penetrates through the movable fire hole cover to extend into the furnace top area vertical fire channel, a valve on the connecting pipe is opened, so that slurry automatically flows into the furnace top area vertical fire channel through the connecting pipe and the feeding pipe, and the slurry is supported at the bottom of the furnace top area vertical fire channel by the opened refractory fiber umbrella cover; the flow speed and the flow rate of the slurry are regulated through the opening degree of the valve; when the slurry overflows from the top of the movable fire hole cover, the valve is closed, and the feeding pipe is taken out from the vertical fire channel in the furnace top area;
5) The mud supporting umbrella is kept still, after 15 minutes, the mud is permeated into cracks of refractory bricks of the vertical flame path in the furnace top area, and the effect of drying by evaporation is achieved, namely, a layer of solidified mud is reserved on the surface of the side wall of the vertical flame path in the furnace top area; the umbrella body is moved downwards, the umbrella rib support is folded by the shrinkage pull rod, and the refractory fiber cloth umbrella cover can be taken out after being shrunk to be smaller than the inner diameter of the vertical flame path at the furnace top area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810863159.4A CN108917402B (en) | 2018-07-31 | 2018-07-31 | Furnace top area vertical flame path sealing device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810863159.4A CN108917402B (en) | 2018-07-31 | 2018-07-31 | Furnace top area vertical flame path sealing device and method |
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| Publication Number | Publication Date |
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| CN108917402A CN108917402A (en) | 2018-11-30 |
| CN108917402B true CN108917402B (en) | 2024-04-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707858B (en) * | 2018-12-27 | 2021-02-12 | 湖州师范学院 | Umbrella valve adjusting mechanism for water shortage alarm |
| CN109707891B (en) * | 2018-12-27 | 2021-02-12 | 湖州师范学院 | Umbrella valve adjusting mechanism |
| CN109722261B (en) * | 2019-01-25 | 2023-11-21 | 宣化钢铁集团有限责任公司 | Coke oven horizontal flue grouting device and grouting method thereof |
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| CN208779940U (en) * | 2018-07-31 | 2019-04-23 | 中冶焦耐(大连)工程技术有限公司 | A kind of furnace roof area flue sealing device |
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2018
- 2018-07-31 CN CN201810863159.4A patent/CN108917402B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB651429A (en) * | 1948-03-01 | 1951-04-04 | John Miles & Partners London L | An improved gas seal for relatively rotating tubular parts of a blast furnace top |
| CN201660590U (en) * | 2010-01-13 | 2010-12-01 | 鞍钢股份有限公司 | Sealing tool for plastering and repairing vertical flue of coke oven combustion chamber |
| CN104560066A (en) * | 2014-12-01 | 2015-04-29 | 山东钢铁股份有限公司 | Sealing device and method for fire observation hole of coke oven |
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| CN108917402A (en) | 2018-11-30 |
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