CN202272890U - Thrash cooling device for blast furnace - Google Patents
Thrash cooling device for blast furnace Download PDFInfo
- Publication number
- CN202272890U CN202272890U CN2011203784050U CN201120378405U CN202272890U CN 202272890 U CN202272890 U CN 202272890U CN 2011203784050 U CN2011203784050 U CN 2011203784050U CN 201120378405 U CN201120378405 U CN 201120378405U CN 202272890 U CN202272890 U CN 202272890U
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- fetching water
- water
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- blast furnace
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Abstract
The utility model provides a thrash cooling device for a blast furnace. The thrash cooling device for the blast furnace comprises a thrash tube which is arranged at an air inlet of the blast furnace, wherein the thrash tube extends to the inside of the blast furnace from the air inlet and is provided with at least one thrash hole. Due to the use of the thrash cooling device for the blast furnace, which is provided by the utility model, the cooling speed of a furnace body can be effectively improved.
Description
Technical field
The utility model relates to a kind of blast furnace refrigerating unit of fetching water, and specifically, relates to a kind of blast furnace that can improve the body of heater speed of cooling effectively refrigerating unit of fetching water.
Background technology
Blast furnace is the major equipment of smelting iron and steel, and blast furnace owing to equipment, structure, furnace lining etc. can be worn in process of production constantly, therefore whenever need carry out the blowing out overhaul to blast furnace at regular intervals in operational process.
The anti-material of blast furnace hearth and bottom liner is removed and changed is the main contents of blast furnace overhaul, behind the blast furnace stopping, still has a large amount of unburned cokes and the residual iron of part in the stove, and a large amount of furnace charges and heat are stayed in the stove, can't remove.For as early as possible the heat exhaustion in the stove being fallen; Make in the stove fast to cool down, reach and can use machinery or artificial condition of removing, the general method that adopts is to remove air-supply arrangement; In stove, fetch water with the original rifle of fetching water from furnace roof then, let great amount of heat change into water vapour and consume.
Yet be from the furnace roof shortcoming that rifle fetches water in stove of fetching water: the rifle position of 1) fetching water is confirmed, can only rifle head fixed point fetch water, and can't realize requirement that whole furnace charge uniform plane is fetched water causing each position cooling performance different, and prolong cooling time; 2) higher because of the rifle position of fetching water, the part water yield can get into the anti-material of furnace wall along furnace wall to dirty, and is influential to anti-material degree of compactness and life-span.
The utility model content
The one side of the utility model is to provide a kind of blast furnace that can improve the body of heater speed of cooling effectively refrigerating unit of fetching water.
Being on the other hand of the utility model provides a kind of refrigerating unit that can prevent that the anti-material of furnace wall from receiving the erosion of water coolant and the blast furnace that damages is fetched water.
The one side of the utility model provides a kind of blast furnace refrigerating unit of fetching water; Said refrigerating unit comprises the pipe of fetching water, and the said pipe of fetching water is arranged on the place, air port of blast furnace, wherein; The said pipe of fetching water extends to high furnace interior from the air port, on the pipe of fetching water at least one hole of fetching water is set.
According to the one side of the utility model, can a plurality of pipes of fetching water be set at the place, air port, said a plurality of pipes of fetching water can be set to arrange equably around body of heater.
According to the one side of the utility model, said a plurality of decoration forms of fetching water pipe can be: every separated 2-4 air port is provided with the pipe of fetching water.
According to the one side of the utility model, the length of the pipe of fetching water can equal the radius of place, air port blast furnace.
According to the one side of the utility model, the diameter of the pipe of fetching water can be DN32-DN65.
According to the one side of the utility model, can on the pipe of fetching water, a plurality of holes of fetching water be set, said a plurality of holes of fetching water can have uniform interval along the length direction of the pipe of fetching water.
According to the one side of the utility model, said a plurality of holes of fetching water can become 30-60 degree angle to be arranged to two rows in the both sides, top of the pipe of fetching water with horizontal center line.
According to the one side of the utility model, the interval of the length direction that manage along fetching water in said a plurality of holes of fetching water can be 100mm-200mm.
According to the one side of the utility model, the diameter in the hole of fetching water can be φ 5-φ 8.
When the purpose of the utility model was to overcome blast furnace overhaul cold stove, it was inhomogeneous to fetch water, and the time of fetching water is long, the halfway defective of cool stove.Adopt the blast furnace of the utility model device of fetching water in the Shi Zailu that fetches water, to form spraying, have fetch water even, thorough, quick, easy, save time, manpower, workload be little, the characteristics that do not need many people to operate.
Description of drawings
Through the description of carrying out below in conjunction with accompanying drawing to embodiment, above-mentioned and/or other purposes and the advantage of the utility model will become apparent, wherein:
Fig. 1 shows the synoptic diagram according to the decoration form of the pipe of fetching water of an embodiment of the utility model;
Fig. 2 shows the vertical view according to the pipe of fetching water of an embodiment of the utility model;
Fig. 3 shows the sectional view according to the pipe of fetching water of an embodiment of the utility model.
Embodiment
Describe the utility model below with reference to accompanying drawings in detail; The exemplary embodiment of the utility model shown in the drawings; Yet it only is in order to make that the disclosure will be completely and completely that these accompanying drawings are provided, and will help those skilled in the art to understand the utility model better; Thereby the spirit and the scope of the utility model are conveyed to those skilled in the art, rather than from the purpose that limits the utility model.Therefore, it should be appreciated by those skilled in the art that except the embodiment shown in the accompanying drawing that the utility model can also be implemented with many different modes.The scope of the utility model is limited claim and equivalent thereof.
Fig. 1 is the synoptic diagram that illustrates according to the decoration form of the pipe of fetching water of the embodiment of the utility model; Fig. 2 is the vertical view of fetching water and managing that illustrates according to an embodiment of the utility model; Fig. 3 is the sectional view of fetching water and managing that illustrates according to an embodiment of the utility model.
Referring to figs. 1 through Fig. 3, the residual iron in the discharging blast furnace, the dismounting air-supply apparatus of blast furnace is also opened after the Blast Furnace Throat Ventilation Valve, whenever at a distance from two air ports the pipe 1 of fetching water is set.As shown in Figure 1, the pipe 1 of fetching water is set respectively in 1#, 4#, 7#, 10#, 13# and 16# air port.The pipe 1 of fetching water extends to blast furnace 3 inside from each air port, fetches water to manage at least one hole of fetching water is set; Pipe is fetched water to blast furnace 3 inside through fetching water.
A plurality of holes 4 of fetching water become miter angle to be arranged to two rows in the both sides, top of the pipe 1 of fetching water with horizontal center line.Like this, water can be ejected into the upper left and upper right both direction of pipe 1 of fetching water simultaneously, thereby makes water be distributed to the inside of blast furnace 3 more equably.
More than referring to figs. 1 through Fig. 3 the concrete exemplary embodiment of the utility model has been described, yet the utility model is not limited to above-mentioned exemplary embodiment.It will be appreciated by those skilled in the art that the scope that provides these embodiment to be not intended to limit the utility model, the utility model can also be implemented with many other modes.Below, with the preferred implementation of describing the utility model in detail.
Adopt the blast furnace of the utility model exemplary embodiment refrigerating unit of fetching water to carry out the method that blast furnace fetches water and comprise the steps: to discharge the residual iron in the blast furnace; Remove air-supply apparatus of blast furnace; Open Blast Furnace Throat Ventilation Valve; The place is provided with the pipe of fetching water in the air port, and the said pipe of fetching water extends to high furnace interior from the air port, on the pipe of fetching water at least one hole of fetching water is set; Pipe is fetched water in blast furnace through fetching water.
Blast furnace carried out blowing out to blast furnace earlier and handles and discharge the residual iron in the blast furnace before carrying out large repairs.Blast furnace stopping and the technology of discharging residual iron are known to those skilled in the art, therefore for for the purpose of concise and to the point, will no longer repeat its concrete steps here.
Discharge after the residual iron, remove air-supply apparatus of blast furnace, so that carry out the follow-up operation of fetching water.Simultaneously, also need open the valve that diffuses of blast furnace furnace roof, thereby can make water vapour quick drain to the blast furnace that produces in the process of fetching water outside.
The dismounting air-supply arrangement is also opened and is diffused after the valve, and the place is provided with the pipe of fetching water in the air port.The pipe of fetching water can be the water pipe of being processed by high temperature material; And the pipe of fetching water extends to high furnace interior from the air port; On the pipe of fetching water, at least one hole of fetching water is set, thereby the water in the pipe of fetching water is ejected in the blast furnace through the hole of fetching water, thereby blast furnace is lowered the temperature rapidly.
According to an embodiment of the utility model, can be ejected into more equably in the blast furnace in order to make water, can a plurality of pipes of fetching water be set at the place, air port, said a plurality of pipes of fetching water can be set to arrange equably around body of heater.According to an embodiment of the utility model, can whenever the pipe of fetching water be set at a distance from about 2-4 air port.Through such setting, water is distributed in the entire cross section of blast furnace equably, thereby reaches the purpose of water distribution uniformity.Therefore, the temperature in the blast furnace is evenly reduced apace.
The pipe of fetching water extends from the air port to high furnace interior, and for fear of the conflict each other between the pipe of fetching water that is arranged in place, different air port, according to an embodiment of the utility model, the length of the pipe of fetching water equals the radius of place, air port blast furnace.Through such layout; Can prevent to be arranged in the conflict mutually between the pipe of fetching water at place, different air port; And be arranged on along the pipe of fetching water at the relative place, two air ports of the diametric(al) of blast furnace and form the pipe of fetching water, thereby help the uniform distribution of water across the whole cross section of blast furnace.
Can be according to the diameter near the water supply capacity at the water source blast furnace and air port confirm the to fetch water diameter of pipe.Usually, in order to improve service discharge, can be with the thick as far as possible of pipe setting of fetching water.Simultaneously, fetching water the diameter of managing can not be above the diameter in air port.When the water supply capacity at water source was not enough, the diameter of the pipe that should suitably reduce to fetch water was to guarantee enough discharge pressures.According to an embodiment of the utility model, the diameter of the pipe of fetching water is DN32-DN65.Yet the utility model is not limited thereto, and those skilled in the art can select the diameter of the suitable pipe of fetching water according to practical situation.
In order further to improve the homogeneity of fetching water, according to an embodiment, can on the pipe of fetching water, a plurality of holes of fetching water be set, these holes of fetching water can be arranged on the pipe of fetching water equably.In other words, these holes of fetching water have uniform interval along the length direction of managing of fetching water.According to an embodiment of the utility model, fetching water is spaced apart the about 200mm of about 100mm-between the hole.Yet the utility model is not limited thereto, and those skilled in the art can select suitable interval of fetching water between the hole according to practical situation.
According to an embodiment of the utility model, a plurality of holes of fetching water become 30-60 degree angle to be arranged to two rows in the both sides, top of the pipe of fetching water with horizontal center line, and preferably, a plurality of holes of fetching water become miter angle to be arranged to two rows in the both sides, top of the pipe of fetching water with horizontal center line.Like this, water can be ejected into the upper left and upper right both direction of pipe of fetching water simultaneously, thereby water is distributed in the body of heater more equably.
Can regulate the state of water spray through the fetch water diameter in hole of change.When the diameter in the hole of fetching water increases, can increase aquifer yield, the corresponding reduction of discharge pressure meeting simultaneously when the diameter in the hole of fetching water reduces, can improve discharge pressure, but aquifer yield can reduce.Usually, discharge pressure is big more, and then the jet length defection of water is far away more, and aquifer yield is big more, and the water that then can supply in the unit time is many more.The length that can manage according to fetching water and diameter and source pressure are suitably confirmed the diameter in hole of fetching water, thereby water can be distributed in the stove as far as possible equably.According to the embodiment of the utility model, when the hole of fetching water has appropriate diameter and water source when having enough pressure, water can form spraying in stove, thereby makes the more even distribution of water.According to an embodiment of the utility model, the diameter in the hole of fetching water is φ 5-φ 8.Yet the utility model is not limited thereto, and those skilled in the art can select the diameter in the suitable hole of fetching water according to practical situation.
The aquifer yield in hole of fetching water is big more, and the water that then unit time sprays in the stove is many more, thereby blast furnace can be cooled off quickly.Yet aquifer yield neither be the bigger the better, and for example, under the situation that the water that sprays can not be vaporized fully, unnecessary water can be along furnace wall to dirty, thereby get into the anti-material of furnace wall, thereby can influence the degree of compactness and the life-span of anti-material.Therefore, according to an embodiment of the utility model, the blast furnace method of cooling of fetching water also comprises regulating and being arranged on the outside valve of pipe of fetching water, and so that aquifer yield is controlled to be water can all be vaporized and not excessive.
According to an embodiment, in the blast furnace overhaul process, used and adopted according to the fetch water method of device of the blast furnace of the utility model, fetch water altogether 26.5 hours time; And generally need blast furnace was cooled off in 72 hours according to traditional method of fetching water; Thus it is clear that, can make blast furnace cooling with less time according to the blast furnace of the utility model device of fetching water, thereby can shorten the blast furnace maintenance time; Thereby can earlier accomplish service work, reduce the loss that stops production and cause owing between turn(a)round.
Therefore, the utlity model has simple installation, simple to operate, the water yield is controlled, fetches water evenly, and the process of fetching water safety can be protected advantages such as anti-material to greatest extent.Fetch water in the method water pipe directly inserted in the stove and fetch water thereby solved other blast furnace overhaul effectively, water yield control is bad, and the time of fetching water is long, it is not thorough to fetch water, and influence the problems such as construction quality and duration of dismounting in the overhaul stove.
Illustrated and described the certain exemplary embodiment of the utility model; But it should be understood by one skilled in the art that; Under the situation of spirit that does not break away from the utility model and scope; Can carry out various modifications and change to these embodiment, the scope of the utility model is limited claims and equivalent thereof.
Claims (9)
1. blast furnace refrigerating unit of fetching water is characterized in that said refrigerating unit comprises:
The pipe of fetching water, the said pipe of fetching water is arranged on the place, air port of blast furnace, and wherein, the said pipe of fetching water extends to high furnace interior from the air port, and fetching water to manage is provided with at least one hole of fetching water.
2. refrigerating unit as claimed in claim 1 is characterized in that said refrigerating unit comprises a plurality of pipes of fetching water that are arranged on the place, air port, and said a plurality of pipes of fetching water are set to arrange equably around body of heater.
3. refrigerating unit as claimed in claim 2, it is characterized in that said a plurality of decoration form of fetching water pipe is: every separated 2-4 air port is provided with the pipe of fetching water.
4. refrigerating unit as claimed in claim 1, the length of managing that it is characterized in that fetching water equals the radius that blast furnace is located in the air port.
5. refrigerating unit as claimed in claim 1, the diameter of managing that it is characterized in that fetching water is DN32-DN65.
6. refrigerating unit as claimed in claim 1 is characterized in that on the pipe of fetching water, a plurality of holes of fetching water being set, and said a plurality of holes of fetching water have uniform interval along the length direction of managing of fetching water.
7. refrigerating unit as claimed in claim 6 is characterized in that said a plurality of hole of fetching water becomes 30-60 degree angle to be arranged to two rows in the both sides, top of the pipe of fetching water with horizontal center line.
8. refrigerating unit as claimed in claim 6 is characterized in that said a plurality of hole of fetching water is spaced apart 100-200mm along the length direction of the pipe of fetching water.
9. refrigerating unit as claimed in claim 1, the diameter in the hole that it is characterized in that fetching water is φ 5-φ 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203784050U CN202272890U (en) | 2011-09-30 | 2011-09-30 | Thrash cooling device for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203784050U CN202272890U (en) | 2011-09-30 | 2011-09-30 | Thrash cooling device for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202272890U true CN202272890U (en) | 2012-06-13 |
Family
ID=46193260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203784050U Expired - Fee Related CN202272890U (en) | 2011-09-30 | 2011-09-30 | Thrash cooling device for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202272890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111020087A (en) * | 2019-12-19 | 2020-04-17 | 北京首钢股份有限公司 | Blast furnace water-fetching cooling method and device |
-
2011
- 2011-09-30 CN CN2011203784050U patent/CN202272890U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111020087A (en) * | 2019-12-19 | 2020-04-17 | 北京首钢股份有限公司 | Blast furnace water-fetching cooling method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |