CN208901644U - A kind of hot-blast stove furnace foundation hot wind leakage plugging structure - Google Patents
A kind of hot-blast stove furnace foundation hot wind leakage plugging structure Download PDFInfo
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- CN208901644U CN208901644U CN201821632304.XU CN201821632304U CN208901644U CN 208901644 U CN208901644 U CN 208901644U CN 201821632304 U CN201821632304 U CN 201821632304U CN 208901644 U CN208901644 U CN 208901644U
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Abstract
The utility model discloses a kind of hot-blast stove furnace foundation hot winds to leak plugging structure, including packet box, furnace bottom, furnace foundation, it is characterised in that: the furnace bottom is fixed by bolts in above furnace foundation, and the packet box is the circle facade steel plate welded on furnace foundation；The refractory concrete soil layer that is provided between the packet box and furnace bottom under and in upper bitumen layer, several grout pipes are provided between the refractory concrete soil layer and bitumen layer, one end is located on the outside of packet box, and at the gap between furnace bottom and furnace foundation, the grouting pipe port is provided with valve for one end.The novel outside that passes through successively blocks, refractory concrete, which is poured, on furnace foundation top increases intensity, it is layered on refractory concrete using the biggish pitch of viscosity later, block fine gap and the packet box gap of generation of expanding with heat and contract with cold, it is in the milk to furnace bottom and furnace foundation intermediate course gap, the final channel for thoroughly blocking hot wind leakage region, eliminates safe hidden trouble.
Description
Technical field
The utility model belongs to hot-blast stove technical field, and in particular to a kind of hot-blast stove furnace foundation hot wind leakage plugging structure.
Background technique
Currently, country's control production-scale to the iron and steel enterprise of high energy consumption, high pollution is constantly reinforced, iron and steel enterprise can not
Improve production scale, especially blast furnace, hot-blast stove, converter, coke oven these high energy consumptions, high pollution Large-Scale Equipment, only pass through
The safe operation that the measures such as technique, Improving Equipment maintain existing Large-Scale Equipment is continued to optimize, but with hot-blast stove furnace service life
Extend, when building, perhaps the unqualified sealing plate of furnace bottom during normal production of material or lower part furnace foundation crack construction quality hot-blast stove
After there is hole, hot-blast stove a large amount of hot wind during air-supply is scurried out from furnace bottom gap, and gap gradually expands as time goes by,
Finally furnace bottom fine sand mud is blown and is eaten, area and the larger area of leaking out of intensity are formed, reduces air supply efficiency, and it is hidden to there is safety
Suffer from.Existing processing method is to pour refractory material in furnace foundation circumferencial direction, so that hot wind change is altered wind outlet, is formed on ground more
" rat hole ", be not inherently eliminated hot wind and alter circulation passage, toast furnace foundation steel construction for a long time and be easy to cause steel construction heat tired
Labor；And the refractory material poured in circumferencial direction is affected by thermal expansion and contraction, and can be formed newly between refractory material and furnace shell
Gap is expanded to the leakage of furnace foundation circumferencial direction large area by the leakage of original individual region.
Utility model content
The utility model intends to solve the technical problem by providing a kind of hot-blast stove furnace foundation hot winds to leak plugging structure.It can be from
It fundamentally eliminates hot wind and alters circulation passage, prevent from blocking and expect to form new gap between furnace shell, effectively block at hot-blast stove furnace foundation
Hot wind leakage, prevents the danger hidden danger in air port region, realizes safety in production.
The utility model is to be achieved through the following technical solutions:
A kind of hot-blast stove furnace foundation hot wind leakage plugging structure, including packet box, furnace bottom, furnace foundation, it is characterised in that: the furnace bottom
It is fixed by bolts in above furnace foundation, the packet box is the circle facade steel plate welded on furnace foundation；The packet box and furnace bottom it
Between be provided with refractory concrete soil layer under and in upper bitumen layer, if being provided between the refractory concrete soil layer and bitumen layer
Dry grout pipe, one end are located on the outside of packet box, and one end is at the gap between furnace bottom and furnace foundation, the grouting pipe port setting
There is valve.
Further, gasket, steel plate are provided with below the nut of the bolt matching.
Further, packet box top is flushed with steel plate below nut.
Further, the packet box is set to away from 450~550mm of furnace bottom.
Further, the refractory concrete soil layer is higher than at the gap between furnace bottom and furnace foundation.
Further, the pitch layer height is consistent with packet box height.
Further, 2.5~3.5 meters are spaced between the adjacent grout pipe.
Further, according to site specific, pass through valve controlled grouting amount.
Compared with prior art, the utility model has the beneficial effects that
1, it is successively blocked by external, constantly reduces inside furnace foundation gap of leaking out, it is final thoroughly to block hot wind leakage region
Channel.
2, refractory concrete being poured on furnace foundation top and increasing intensity, slurry when grouting is avoided largely to flow out from packet box gap.
3, it is layered on refractory concrete using the biggish pitch of viscosity, blocks the fine gap and packet box of generation of expanding with heat and contract with cold
Gap.
4, it is in the milk to furnace bottom and furnace foundation intermediate course gap, it is ensured that furnace foundation hot wind thoroughly blocks, and eliminates safe hidden trouble.
Detailed description of the invention
Fig. 1 is the hot-blast stove structural schematic diagram of the utility model；
Fig. 2 is the hot-blast stove occluding member cross-sectional view of the utility model；
Fig. 3 is the hot-blast stove top view of the utility model.
Wherein, 1- packet box, 2- furnace bottom, 3- furnace foundation, 4- bolt, 5- refractory concrete soil layer, 6- bitumen layer, 7- grout pipe, 8-
Valve, 9- nut, 10- gasket, 11- steel plate, 12- vault, 13- shaft, 14- cold air duct, 15- cold blast sliding valve, 16- lacing wire, 17-
Anhydrous stemming, 18- cement mortar, 19- fire resisting pouring material.
Specific embodiment
1-3 is described in further detail the utility model with reference to the accompanying drawing, and described is the explanation to the utility model
Rather than it limits.Specific embodiment is given below.
Hot-blast stove is made of a large amount of refractory masonry and auxiliary device, has sizable loading, in order to keep hot-blast stove
Stabilization, be fixed on furnace foundation by bolt 4 and lacing wire 16.Hot-blast stove includes vault 12, shaft 13, furnace bottom 2.In the side of shaft
Face is provided with cold air duct 14, and cold air duct port is provided with cold blast sliding valve 15.When high-temperature flue gas is more than set temperature, cold blast sliding valve
15 automatically turn on, and extraneous gas at normal temperature is drawn into pipeline and is mixed with high-temperature flue gas, mixed flue-gas temperature is not higher than
Temperature is set.When entering the high-temperature flue gas of bag collector in permission temperature range, cold blast sliding valve 15 is automatically closed.
Hot-blast stove is built, castable refractory 19 can be filled, between 2 bottom of furnace bottom, furnace foundation 3 and furnace bottom 2 in order to reach more
Good sealing effect, after being poured between furnace bottom 2 and furnace foundation 3 there are still gap anhydrous stemming 17 and cement mortar 18 fill.
With the extension of hot-blast stove furnace service life, 2 sealing plate of furnace bottom or lower part furnace foundation 3 crack, and hole occur, during hot-blast stove is blown
A large amount of hot winds are scurried out from 2 gap of furnace bottom, and over time, gap of leaking out is gradually expanded, finally by 17 He of anhydrous stemming
Cement mortar 18, which is blown, eats, and forms biggish region of leaking out, and reduces air supply efficiency, there are security risks.
Solve hot-blast stove Air Leakage, closure region of leaking out can be realized by four steps: formwork pours, aperture and filling
Slurry.Formwork is one circle steel plate of welding, i.e. packet box 1 at 500mm on the outside of the furnace bottom.A cavity is formed between packet box 1 and furnace bottom 2
Region pours refractory concrete, conserves to refractory concrete, have to refractory concrete after bottom cleaning, purging completely
After having certain degree of hardness, refractory concrete soil layer 5 is formed, refractory concrete soil layer 5 is higher than at the gap between furnace bottom 2 and furnace foundation 3；Then
Layer pours pitch on it, after asphalt solidification, forms bitumen layer 6,6 height of bitumen layer is consistent with 1 height of packet box；In casting process
In can cover steel plate above cavity area and be sealed, position is flushed with 4 lower section steel plate 11 of bolt.In refractory concrete soil layer 5
Several holes are opened between bitumen layer 6, aperture is in order to which grout pipe 7 is arranged.Grout pipe 7, one end are located at 1 outside of packet box, one end
At gap between furnace bottom 2 and furnace foundation 3,3 meters are spaced between adjacent grout pipe 7.7 port of grout pipe is provided with valve 8, root
It is in the milk according to field conditions, passes through 8 controlled grouting amount of valve.Grouting blocks material using the dedicated furnace foundation of my company, main
Quickly solidification, ungauged regions characteristic when characteristic is more liquid, high temperature after being stirred using bonding agent.By successively blocking, constantly
Diminution is leaked out gap, it is ensured that the leakage of furnace foundation hot wind is thoroughly blocked, and is eliminated safe hidden trouble.
Example given above is to realize that the utility model preferably example, the utility model is not limited to above-mentioned implementation
Example.Those skilled in the art is made according to the technical characteristic of technical solutions of the utility model, any nonessential addition,
Replacement, belongs to the protection scope of the utility model.
Claims (7)
1. a kind of hot-blast stove furnace foundation hot wind leaks plugging structure, including packet box (1), furnace bottom (2), furnace foundation (3), it is characterised in that:
The furnace bottom (2) is fixed on above furnace foundation (3) by bolt (4), and the packet box (1) is that the circle welded on furnace foundation (3) is stood
Face steel plate；
The refractory concrete soil layer (5) that is provided between the packet box (1) and furnace bottom (2) under and in upper bitumen layer (6), it is described
Several grout pipes (7) are provided between refractory concrete soil layer (5) and bitumen layer (6), one end is located on the outside of packet box (1), one end
At gap between furnace bottom (2) and furnace foundation (3), grout pipe (7) port is provided with valve (8).
2. a kind of hot-blast stove furnace foundation hot wind according to claim 1 leaks plugging structure, it is characterised in that: the bolt
(4) gasket (10), steel plate (11) are provided with below matched nut (9).
3. a kind of hot-blast stove furnace foundation hot wind according to claim 1 leaks plugging structure, it is characterised in that: the packet box
(1) top is flushed with the steel plate (11) below nut (9).
4. a kind of hot-blast stove furnace foundation hot wind according to claim 1 or 3 leaks plugging structure, it is characterised in that: the packet
Box (1) is set to away from (2) 450~550mm of furnace bottom.
5. a kind of hot-blast stove furnace foundation hot wind according to claim 1 leaks plugging structure, it is characterised in that: the fire resisting is mixed
Solidifying soil layer (5) are higher than at the gap between furnace bottom (2) and furnace foundation (3).
6. a kind of hot-blast stove furnace foundation hot wind according to claim 1 leaks plugging structure, it is characterised in that: the bitumen layer
(6) highly consistent with packet box (1) height.
7. a kind of hot-blast stove furnace foundation hot wind according to claim 1 leaks plugging structure, it is characterised in that: the adjacent filling
2.5~3.5 meters are spaced between slurry pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821632304.XU CN208901644U (en) | 2018-10-09 | 2018-10-09 | A kind of hot-blast stove furnace foundation hot wind leakage plugging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821632304.XU CN208901644U (en) | 2018-10-09 | 2018-10-09 | A kind of hot-blast stove furnace foundation hot wind leakage plugging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208901644U true CN208901644U (en) | 2019-05-24 |
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ID=66575033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821632304.XU Active CN208901644U (en) | 2018-10-09 | 2018-10-09 | A kind of hot-blast stove furnace foundation hot wind leakage plugging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208901644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980055A (en) * | 2020-08-06 | 2020-11-24 | 中国十七冶集团有限公司 | Operation method for dense grouting between bottom and foundation of hot blast stove |
| CN114774607A (en) * | 2022-04-24 | 2022-07-22 | 北京首钢建设集团有限公司 | Hot blast stove bottom structure and welding method thereof |
-
2018
- 2018-10-09 CN CN201821632304.XU patent/CN208901644U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980055A (en) * | 2020-08-06 | 2020-11-24 | 中国十七冶集团有限公司 | Operation method for dense grouting between bottom and foundation of hot blast stove |
| CN114774607A (en) * | 2022-04-24 | 2022-07-22 | 北京首钢建设集团有限公司 | Hot blast stove bottom structure and welding method thereof |
| CN114774607B (en) * | 2022-04-24 | 2023-09-15 | 北京首钢建设集团有限公司 | Furnace bottom structure of hot blast furnace and welding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A sealing structure for hot air leakage in the base of a hot air furnace Effective date of registration: 20230602 Granted publication date: 20190524 Pledgee: Shanghai Pudong Development Bank Co.,Ltd. Baotou Branch Pledgor: BAOTOU ANDE KILN TECHNOLOGY Co.,Ltd. Registration number: Y2023150000076 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |