CN218345490U - Protection device for preventing blast furnace tuyere from leaking - Google Patents
Protection device for preventing blast furnace tuyere from leaking Download PDFInfo
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- CN218345490U CN218345490U CN202222362664.5U CN202222362664U CN218345490U CN 218345490 U CN218345490 U CN 218345490U CN 202222362664 U CN202222362664 U CN 202222362664U CN 218345490 U CN218345490 U CN 218345490U
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- 238000007789 sealing Methods 0.000 claims abstract description 38
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims description 16
- 208000001408 Carbon monoxide poisoning Diseases 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 7
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 10
- 229910052725 zinc Inorganic materials 0.000 description 10
- 239000011701 zinc Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000011449 brick Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 206010028372 Muscular weakness Diseases 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 208000005374 Poisoning Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 208000009205 Tinnitus Diseases 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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- 229910002804 graphite Inorganic materials 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 230000036473 myasthenia Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
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- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The application discloses prevent protection device that blast furnace tuyere revealed includes: a connecting part, a conduction part and a fixing part; the protection device comprises a connecting part, a connecting part and a fixing part, wherein a conduction part is arranged between the connecting part and the fixing part, one end of the conduction part is communicated with the connecting part, the other end of the conduction part is communicated with the fixing part, the connecting part is far away from one end of the conduction part and fixedly connected with a shell of a blast furnace tuyere, the protection device further comprises a plurality of sealing devices, the sealing devices are arranged at the connecting part and the connecting part of the conduction part, the connection part is connected with the connecting part of the fixing part and the connecting part of the shell of the blast furnace tuyere, and one end of the conduction part is closed when the fixing part is far away from the fixing part. The problem of when the wind gap position is damaged, can't form effective sealing, cause carbon monoxide to leak easily, if can't in time discover, easily cause staff's carbon monoxide poisoning, cause bodily injury to the staff, endanger staff's personal safety is solved.
Description
Technical Field
The embodiment of the application relates to the technical field of high-temperature smelting furnaces, in particular to a protection device for preventing a blast-furnace tuyere from being leaked.
Background
The blast furnace uses steel plate as furnace shell, and refractory brick lining is built in the shell. The blast furnace body is divided into a furnace throat, a furnace body, a furnace waist, a furnace belly and a furnace hearth 5 from top to bottom. Because of the advantages of good economic index, simple process, large production capacity, high labor production efficiency, low energy consumption and the like of blast furnace ironmaking technology, the iron produced by the method accounts for the vast majority of the total iron production in the world, the blast furnace of the existing ironworks is put into operation in 2013 and 8 months, and the effective volume of the blast furnace is 1250m 3 And 20 air ports are arranged in total.
The blast furnace tuyere is arranged on a blast furnace of an iron works, high-temperature hot air blown in from the blast furnace tuyere and coke at the furnace bottom are oxidized and combusted to generate CO during working, and the blast furnace tuyere has the characteristics of good conductivity, uniform cooling, high cooling efficiency, compact structure, good wear resistance and the like and is usually arranged in a furnace wall between a furnace belly and the furnace bottom. In recent years, the blast furnace tuyere has an extremely severe service environment, and the temperature of the tuyere part of the blast furnace is high, so that the tuyere not only can bear the high temperature of more than about 1500 ℃, but also can bear the scouring of high-temperature iron flow and the abrasion of furnace burden and furnace slag.
Lead to the wind gap position damaged comparatively frequently easily, and damaged mainly concentrate on the crack position of stave and wind gap combination brick, can't form effective seal this moment, cause carbon monoxide to leak easily, if can not in time discover, easily cause staff carbon monoxide poisoning, cause personal injury to the staff, endanger staff's personal safety.
SUMMERY OF THE UTILITY MODEL
The application provides a prevent protection device that blast furnace tuyere revealed to when solving among the prior art when the tuyere position is damaged, and when the crack position of damaged main concentration at stave and tuyere combination brick, can't form effective seal this moment, cause carbon monoxide to leak easily, if can't in time discover, easily cause staff carbon monoxide poisoning, cause bodily injury to the staff, endanger staff's personal safety's problem.
The application provides a prevent protection device that blast furnace tuyere revealed includes: a connecting part, a conduction part and a fixing part;
the protection device comprises a connecting part, a connecting part and a fixing part, wherein a conduction part is arranged between the connecting part and the fixing part, one end of the conduction part is communicated with the connecting part, the other end of the conduction part is communicated with the fixing part, the connecting part is far away from one end of the conduction part and fixedly connected with a shell of a blast furnace tuyere, the protection device further comprises a plurality of sealing devices, the sealing devices are respectively arranged at the connecting part and the connecting part of the conduction part, the connecting part and the connecting part of the fixing part and the connecting part and the shell of the blast furnace tuyere, and one end of the conduction part is closed.
Further, the sealing device is a sealing gasket.
Furthermore, a valve is arranged at one end, far away from the conduction part, of the fixing part.
Further, the outer wall of the conduction part is provided with a detection device configured to detect the concentration of carbon monoxide in the conduction part.
Further, the outer wall of fixed part is equipped with the alarm, the alarm with detection device electricity is connected, the alarm is configured to report to the police when detection device detects that the concentration of carbon monoxide is greater than the default.
Furthermore, the conduction part is integrally formed or formed by splicing a plurality of conduction parts.
Further, an alarm lamp is arranged on the alarm, and the alarm lamp is configured to flash when the alarm gives an alarm.
Furthermore, an alarm lamp is arranged on the alarm, and one end of the connecting part, which is far away from the conduction part, is welded with the shell of the blast furnace tuyere.
This application has add protection device at the easy damaged position in wind gap to realize the purpose of protection staff personal safety, when preventing that carbon monoxide from leaking, if can not in time discover, easily cause staff's carbon monoxide poisoning's consequence, and the device simple structure, low in manufacturing cost, the installation is maintained conveniently, only need can accomplish in the blast furnace overhauls, single set of device installation time only needs about 10 hours, still short than the required time of general blast furnace routine maintenance project.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and those skilled in the art can obtain other drawings according to the provided descriptions without creative efforts.
Fig. 1 is a schematic structural diagram of a protection device for preventing leakage of a blast furnace tuyere according to the present application.
Reference numerals:
1-connecting part, 2-conducting part, 3-fixing part, 4-sealing device, 21-detecting device, 31-alarm and 311-alarm lamp.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Among the prior art, when the wind gap position was damaged, and when damaged mainly concentrated on the crack position of stave and wind gap combination brick, can't form effective seal this moment, cause carbon monoxide to leak easily, if can not in time discover, easily cause staff's carbon monoxide poisoning, cause bodily injury to the staff, endanger staff's personal safety, in order to solve above technical problem, this application provides a big cover of stokehold wind gap and leaks coal gas pressure thick liquid protection device.
According to the actual situation, in combination with the blast furnace production, the following 3 reasons are analyzed for the deformation of the blast furnace tuyere:
firstly, blast furnace tuyere is because of quality reason rigidity is not enough itself, and the resistance to deformation is poor, receives external force influence yielding in blast furnace production process.
And secondly, after the blast furnace is put into production, the furnace shell of the blast furnace is heated and deformed along with the rise of the furnace temperature, and the blast furnace tuyere is circumferentially extruded and vertically pulled to deform.
Thirdly, the influence of alkali metals and heavy metals such as zinc, lead and the like.
The mechanism of attack by alkali metals: alkali metals (K, na) tend to form low-melting substances in the blast furnace, and chemically react with the matrix of the refractory, causing a decrease in strength and abnormal expansion of the refractory. Reaction of alkali vapor in the furnace: 2R + CO = R 2 O + C (reaction temperature: 850 ℃ -900 ℃), R produced 2 The O and the graphite carbon simultaneously permeate into brick seams or brick lining air holes to be deposited, and the brick lining is abnormally expanded.
The zinc circulation and destruction mechanism in the furnace: the zinc in iron ore is often sulfide (ZnS), ferrite (ZnO. Fe) 2 O 3 ) Sulfates (ZnSO) 4 ) Or silicate (2 ZnO. SiO) 2 ) The form exists. In the blast furnace iron-making process, zinc-containing compounds in furnace materials are easily directly reduced into metal zinc in a high-temperature area. The melting point and boiling point of zinc are 420 ℃ and 907 ℃ respectively, and when the conditions are met, the zinc is easily oxidized in the furnace: zn + CO 2 = ZnO + CO (reaction temperature: 900 ℃ -11:. RTM.)At 00 ℃ C. Except that a part of zinc is discharged along with slag and coal gas, znO exists in the blast furnace for cyclic enrichment; further, the oxidation reaction of zinc can cause a volume expansion of 54%, causing the refractory to expand.
The mechanism of lead infiltration attack: lead has low melting point (327 deg.C), high boiling point (1740 deg.C), and high density (solid density 11.34 g/cm) 3 Liquid state density 10.63g/cm 3 ). The lead reduced in the smelting process cannot be gasified in the blast furnace, often falls in a liquid state below molten iron, and has strong infiltration capacity. The infiltration and erosion process is as follows: lead infiltration → lead oxidation → volume expansion → generation of cracks.
Alkali metals and heavy metals such as zinc, lead and the like are deposited below the tuyere to cause expansion of the carbon brick, thereby causing gas leakage to be intensified.
Referring to fig. 1, a schematic structural diagram of a protection device for preventing leakage of a blast furnace tuyere according to the present application is shown.
As can be seen from fig. 1, the present application provides a protection device for preventing leakage of a tuyere of a blast furnace, comprising: a connecting part 1, a conduction part 2, and a fixing part 3;
connecting portion 1 with be equipped with conduction part 2 between the fixed part 3, conduction part 2 one end with connecting portion 1 intercommunication, conduction part 2 the other end with fixed part 3 intercommunication, connecting portion 1 conduction part 2 with fixed part 3 forms a cavity, if the wind gap position is when damaged because of high temperature, carbon monoxide reveals, and the carbon monoxide of revealing can be stored in the cavity, prevents that carbon monoxide from directly getting into the air, is inhaled by the staff, causes staff carbon monoxide poisoning, endangers staff's personal safety, connecting portion 1 keeps away from the shell fixed connection of conduction part 2's one end and blast furnace wind gap, this protection device need with the shell fixed connection in blast furnace wind gap, just can make the carbon monoxide of revealing get into the cavity in, can not reveal in the air, protection device still includes a plurality of sealing device 4, in order to make the better sealing gas of protection device, so add sealing device 4, sealing device 4 locates respectively connecting portion 1 with the connection of conduction part 2, conduction part 2 with the connection of fixed part 3, and the connection of fixed part, and connecting portion 1 with the shell of blast furnace wind gap is kept away from to the connection part 2 the gap between the conduction part 3 sealing device, sealing device is to the gap between the conduction part 2 sealing device 3, the gap is carried out the gap between the sealing device 2 between the conduction part 2 and the shell.
In this embodiment, the connecting portion 1, the conduction portion 2 and the fixing portion 3 are communicated with each other and form a cavity, when the tuyere portion is damaged due to high temperature, carbon monoxide leaks, at this time, because the shell of the blast furnace tuyere and the connecting portion 1 are fixedly connected, and one end of the fixing portion 3 far away from the conduction portion 2 of the protection device is closed, so that the leaked carbon monoxide can be stored in the cavity formed by the connecting portion 1, the conduction portion 2 and the fixing portion 3 and cannot be leaked into the air, in order to make the protection device have better gas tightness, the application adds the sealing device 4, and as the sealing device 4 needs to be arranged at the connecting position of each component, the sealing device is arranged at the connecting position of the connecting portion 1 and the conduction portion 2, the connecting position of the conduction portion 2 and the fixing portion 3 and the connecting position of the connecting portion 1 and the shell of the blast furnace tuyere, if necessary, nitrogen can be introduced into the sealing cavity formed by the connecting portion 1, the conduction portion 2 and the fixing portion 3 to perform leak detection and grouting.
The sealing device 4 is a sealing gasket. In this embodiment, the sealing device 4 at the joint of the connecting part 1 and the conducting part 2, the sealing device 4 at the joint of the conducting part 2 and the fixing part 3, and the sealing device 4 at the joint of the connecting part 1 and the shell of the blast furnace tuyere are all set as sealing gaskets, so that the sealing performance of the device is better, and carbon monoxide is prevented from leaking from the joint of the device and being inhaled by workers to cause carbon monoxide poisoning of the workers and endanger the personal safety of the workers.
And a valve is arranged at one end of the fixing part 3, which is far away from the conduction part 2. In this embodiment, the valve is added to the one end that fixed part 3 kept away from conduction part 2 is in order to avoid the interior too much carbon monoxide of protection device to cause the leakage after the work of equipment is accomplished, need regularly open the valve, discharges the carbon monoxide in the device, and the carbon monoxide in the device discharges the back, screws up the valve again, does not influence next use.
A detection device 21 is provided on an outer wall of the conduction part 2, and the detection device 21 is configured to detect a carbon monoxide concentration in the conduction part 2. In this embodiment, in order to avoid the carbon monoxide in the protection device to reveal, but the staff can't discover, this application is in detection device 21 is add to the outer wall of conduction part 2, detection device 21 is used for detecting whether carbon monoxide reveals, if carbon monoxide reveals can be inhaled by the staff, causes staff's carbon monoxide poisoning, endangers staff's personal safety.
The outer wall of the fixing part 3 is provided with an alarm 31, the alarm 31 is electrically connected with the detection device 21, and the alarm 31 is configured to alarm when the detection device 21 detects that the concentration of carbon monoxide is greater than a preset value. In this embodiment, since the concentration of carbon monoxide generally exceeds 200, and after the inhalation time exceeds two hours, a poisoning symptom will appear, and after carbon monoxide poisoning, oxygen deficiency manifestations such as dizziness, tinnitus, vomiting, myasthenia of limbs, etc. will appear, and death will be caused seriously, so in order to avoid such phenomena, it is necessary to add an alarm 31 on the outer wall of the fixing portion 3, when the detection device 21 detects carbon monoxide, or detects that the concentration of carbon monoxide is too high, a signal is sent to the alarm 31, the alarm 31 starts to alarm, and timely reminds a worker that carbon monoxide has been leaked, or the concentration of carbon monoxide in the air has exceeded the standard, and needs to be processed in time.
The conduction part 2 is integrally formed or formed by splicing a plurality of blocks. In this embodiment, conduction portion 2 integrated into one piece or for the polylith concatenation forms, use the polylith concatenation to be in order to let when certain concatenation part is damaged after the 2 concatenations of conduction portion, so can only change the part that damages, help the enterprise to practice thrift manufacturing cost.
The alarm 31 is provided with an alarm lamp 311, and the alarm lamp 311 is configured to flash when the alarm 31 gives an alarm. In this embodiment, work as alarm 31 receives behind the alarm signal that detection device 21 sent, not only alarm 31 begins to report to the police, is located alarm lamp 311 on the alarm 31 begins to flash, and the staff of being convenient for discovers that carbon monoxide appears in the equipment the very first time and reveals, in time carries out remedial measure, has also avoided the staff under the condition of unwittingly, inhales the carbon monoxide that leaks in the air, causes staff's carbon monoxide poisoning, endangers staff's personal safety.
And one end of the connecting part 1, which is far away from the conduction part 2, is welded with the shell of the blast furnace tuyere. In this embodiment, one end of the connecting portion 1, which is far away from the conducting portion 2, is welded to the casing of the blast furnace tuyere, so that the connecting portion 1 and the casing of the blast furnace tuyere can be connected together more firmly.
According to the technical scheme, the embodiment of the application provides a protection device for preventing leakage of a blast furnace tuyere, and the protection device comprises: a connecting part 1, a conduction part 2, and a fixing part 3; connecting portion 1 with be equipped with conduction part 2 between the fixed part 3, conduction part 2 one end with connecting portion 1 intercommunication, conduction part 2 the other end with fixed part 3 intercommunication, connecting portion 1 conduction part 2 with fixed part 3 forms a cavity, if the wind gap position when damaged because of high temperature, carbon monoxide reveals, and the carbon monoxide of revealing can be stored in the cavity, prevents that carbon monoxide from directly getting into the air, is inhaled by the staff, causes staff's carbon monoxide poisoning, endangers staff's personal safety, connecting portion 1 keeps away from the shell fixed connection of conduction part 2's one end and blast furnace wind gap, this protection device need with the shell fixed connection of blast furnace wind gap, just can make the carbon monoxide of revealing get into the cavity, can not reveal in the air, protection device still includes a plurality of sealing device 4, in order to make the better sealing gas of protection device, so add sealing device 4, sealing device 4 locates respectively connecting portion 1 with the junction of conduction part 2, conduction part 2 with the junction of fixed part 3, and the connection part of blast furnace wind gap need carry out sealing device 2 to sealing device between the gap sealing device 2 the gap is kept away from the connection part 1, the gap is to the sealing device between the furnace wind gap is to the connecting portion 2.
The protection device is additionally arranged at the position, which is easy to damage, of the air port, so that the purpose of protecting the personal safety of workers is realized, when carbon monoxide leakage is prevented, the result of carbon monoxide poisoning of the workers is easily caused if the carbon monoxide leakage cannot be found in time, the device is simple in structure, low in manufacturing cost and convenient to install and maintain, the installation can be completed only in the process of overhauling the blast furnace, the installation time of a single set of device is only about 10 hours, and the time required by a conventional overhauling project of the blast furnace is shorter than that required by a common blast furnace.
Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify or substitute equivalents for the specific embodiments of the present invention, which do not depart from the spirit and scope of the present invention, and all such modifications or equivalents are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a prevent protection device that blast furnace tuyere revealed which characterized in that, protection device that blast furnace tuyere revealed includes: a connecting part (1), a conduction part (2), and a fixing part (3);
connecting portion (1) with be equipped with conduction portion (2) between fixed part (3), the one end of conduction portion (2) with connecting portion (1) intercommunication, the other end of conduction portion (2) with fixed part (3) intercommunication, connecting portion (1) is kept away from the one end of conduction portion (2) and the shell fixed connection of blast furnace wind gap, protection device still includes a plurality of sealing device (4), sealing device (4) are located respectively connecting portion (1) with the junction of conduction portion (2) with the junction of fixed part (3), and connecting portion (1) with the junction of the shell of blast furnace wind gap, fixed part (3) are kept away from the one end of conduction portion (2) is sealed.
2. A protection device against blast furnace tuyere leakage according to claim 1, characterized in that said sealing means (4) is a gasket.
3. A protection device for preventing the leakage of the tuyere of the blast furnace as claimed in claim 1, wherein a valve is provided at an end of said fixing portion (3) away from said conducting portion (2).
4. A protection arrangement against blast furnace tuyere leakage according to claim 1, characterized in that the outer wall of said conducting part (2) is provided with detection means (21), said detection means (21) being configured to detect the carbon monoxide concentration inside said conducting part (2).
5. A protection device against blast furnace tuyere leakage according to claim 4, characterized in that the outer wall of said fixing portion (3) is provided with an alarm (31), said alarm (31) being electrically connected to said detection device (21), said alarm (31) being configured to alarm when the detection device (21) detects that the concentration of carbon monoxide is greater than a preset value.
6. The protection device for preventing the blast furnace tuyere from leaking according to claim 1, wherein the conduction part (2) is integrally formed or formed by splicing a plurality of pieces.
7. A protection device for preventing a blast furnace tuyere from leaking according to claim 5, wherein a warning lamp (311) is provided on said alarm (31), said warning lamp (311) being configured to blink when said alarm (31) gives an alarm.
8. The protection device for preventing the leakage of the tuyere of the blast furnace as claimed in claim 1, wherein an end of said connecting portion (1) remote from said conduction portion (2) is welded to the casing of the tuyere of the blast furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222362664.5U CN218345490U (en) | 2022-09-06 | 2022-09-06 | Protection device for preventing blast furnace tuyere from leaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222362664.5U CN218345490U (en) | 2022-09-06 | 2022-09-06 | Protection device for preventing blast furnace tuyere from leaking |
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| Publication Number | Publication Date |
|---|---|
| CN218345490U true CN218345490U (en) | 2023-01-20 |
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|---|---|---|---|
| CN202222362664.5U Active CN218345490U (en) | 2022-09-06 | 2022-09-06 | Protection device for preventing blast furnace tuyere from leaking |
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| Country | Link |
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| CN (1) | CN218345490U (en) |
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2022
- 2022-09-06 CN CN202222362664.5U patent/CN218345490U/en active Active
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Effective date of registration: 20231204 Address after: 753600 Hongguozi Industrial Cluster, Huinong District, Shizuishan City, Ningxia Hui Autonomous Region, Changcheng Garden, Baolan Railway West, Ming Changcheng North Patentee after: Ningxia Jianlong Special Steel Co.,Ltd. Address before: 753000 Great Wall Park, hongguozi Industrial Park, Huinong District, Shizuishan City, Ningxia Hui Autonomous Region Patentee before: Ningxia Jianlong Longxiang Steel Co.,Ltd. |