CN104342525A - Steel slag thermally stewing device with anti-explosion valve - Google Patents
Steel slag thermally stewing device with anti-explosion valve Download PDFInfo
- Publication number
- CN104342525A CN104342525A CN201410569218.9A CN201410569218A CN104342525A CN 104342525 A CN104342525 A CN 104342525A CN 201410569218 A CN201410569218 A CN 201410569218A CN 104342525 A CN104342525 A CN 104342525A
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- Prior art keywords
- slag
- slag stewing
- valve body
- cover plate
- stewing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a steel slag thermally stewing device with an anti-explosion valve. The device comprises a slag stewing pit and a horn-shaped slag stewing cover with an aperture gradually increased from top to bottom, wherein a large-aperture gas inlet end of the horn-shaped slag stewing cover hermetically covers the top of the slag stewing pit via water seal mechanisms, and a small-aperture gas outlet end of the horn-shaped slag stewing cover is communicated with a steam pipeline; the anti-explosion valve is installed on the steam pipeline and comprises a pipe-shaped valve body communicated with the steam pipeline; a cover plate capable of covering an upper pipe orifice of the pipe-shaped valve body downwards is hinged on the pipe-shaped valve body; a stop block is installed at the hinge end of the cover plate; when the cover plate is turned upwards, the stop block at the hinge end of the cover plate just pushes against the outer side wall of the pipe-shaped valve body. The device has the advantages of good sealability, capability of effectively preventing the phenomenon of pit explosion during slag stewing, and high safety in use.
Description
Technical field
The present invention relates to a kind of steel slag hot with explosion trap and boil in a covered pot over a slow fire device.
Background technology
In steel-making industry, slag after steel-making is generally all boiled in a covered pot over a slow fire device by steel slag hot and is carried out the stewing process of steel slag hot, the structure that the steel slag hot used at present boils in a covered pot over a slow fire device is: comprise slag stewing hole, slag stewing lid is stamped in slag stewing hole, the sidewall of slag stewing lid offers air outlet, and slag stewing hole is connected with steam-pipe by slag stewing lid sidewall air outlet.The principle of work that this steel slag hot boils in a covered pot over a slow fire device is: be first deposited in slag stewing hole by the slag after steel-making, and then slag stewing cover buckle is cheated top in slag stewing, then periodically fetches water in slag stewing hole, thus reaches object slag being cooled efflorescence.The shortcoming that this steel slag hot boils in a covered pot over a slow fire device is: (1) is a large amount of high-temperature steam containing flammable explosive gas such as hydrogen because slag can give out in process of cooling, these steam major parts can enter air through slag stewing lid sidewall air outlet and steam-pipe, but because the density of the flammable explosive gas such as hydrogen is lighter, the flammable explosive gas such as these hydrogen can rise and be gathered in bottom slag stewing lid, when these inflammable and explosive gases are enriched to finite concentration, very easily meet the naked light in slag stewing hole and quick-fried hole occur, for hidden danger has been buried in safety in production; (2) slag stewing lid and slag stewing cheat between stopping property poor, high-temperature steam easily cheat from slag stewing lid and slag stewing between gap dissipation go out and scald operator; (3) when the high-temperature steam amount that steel slag hot boils in a covered pot over a slow fire generation is excessive, steam-pipe easily damages because transient pressure is excessive.
Summary of the invention
The object of this invention is to provide a kind of energy good seal performance and can effectively prevent a kind of steel slag hot with explosion trap that quick-fried hole phenomenon occurs during slag stewing from boiling in a covered pot over a slow fire device.
For achieving the above object, present invention employs following technical scheme: described a kind of steel slag hot with explosion trap boils in a covered pot over a slow fire device, comprise: slag stewing is cheated, and bore is in the tubaeform slag stewing lid from top to bottom increased gradually, the heavy caliber inlet end of tubaeform slag stewing lid cheats top by water seal mechanism sealing cover in slag stewing, and the small-bore outlet side of tubaeform slag stewing lid is connected with steam-pipe; Steam-pipe is provided with explosion trap, the structure of described explosion trap is: comprise the tubular valve body be connected with steam-pipe, tubular valve body is hinged with the cover plate that can cover tubular valve body upper orifice downwards, at the pin jointed end place of cover plate, limited block is installed, when cover plate upwards overturns, the limited block at cover plate pin jointed end place is just in time against on the outer side wall of tubular valve body.
Further, aforesaid a kind of steel slag hot with explosion trap boils in a covered pot over a slow fire device, and wherein: the upper orifice edge of tubular valve body is provided with a root rubber sealed strip, when cover plate covers tubular valve body upper orifice downwards, cover plate is just in time pressed on rubber weather strip.
Further, aforesaid a kind of steel slag hot with explosion trap boils in a covered pot over a slow fire device, wherein: the structure of described water seal mechanism is: slag stewing hole is provided with the aqua storage tank that a circle has water, in aqua storage tank, interval is provided with some cushion blocks be immersed in water, a circle bulge loop is integrally extended with downwards at the edge of tubaeform slag stewing lid heavy caliber inlet end, when tubaeform slag stewing lid covers slag stewing hole downwards, the bulge loop of tubaeform slag stewing lid is just in time against downwards on the cushion block in aqua storage tank.
Further, aforesaid a kind of steel slag hot with explosion trap boils in a covered pot over a slow fire device, wherein: around slag stewing hole, be provided with water eliminator.
Further, aforesaid a kind of steel slag hot with explosion trap boils in a covered pot over a slow fire device, wherein: also arranging on slag stewing hole can to the nitrogen purging mechanism purging nitrogen in slag stewing hole.
By the enforcement of technique scheme, the present invention has energy good seal performance, can effectively prevent from, during slag stewing, quick-fried hole phenomenon, advantage safe to use occur.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of steel slag hot with explosion trap of the present invention boils in a covered pot over a slow fire device.
Fig. 2 is the structure for amplifying schematic diagram at the H position shown in Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram at the I position shown in Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, Figure 2, Figure 3 shows, described a kind of steel slag hot with explosion trap boils in a covered pot over a slow fire device, comprise: slag stewing hole 1, and bore is in the tubaeform slag stewing lid 2 from top to bottom increased gradually, the heavy caliber inlet end of tubaeform slag stewing lid 2 cheats 1 top by water seal mechanism sealing cover in slag stewing, and the small-bore outlet side of tubaeform slag stewing lid 2 is connected with steam-pipe 3, steam-pipe 3 is provided with explosion trap 4, the structure of described explosion trap 4 is: comprise the tubular valve body 5 be connected with steam-pipe 3, tubular valve body 5 is hinged with the cover plate 6 that can cover tubular valve body 5 upper orifice downwards, at the pin jointed end place of cover plate 6, limited block 7 is installed, when cover plate 6 upwards overturns, the limited block 7 at cover plate 6 pin jointed end place is just in time against on the outer side wall of tubular valve body 5, in the present embodiment, be provided with a root rubber sealed strip 8 at the upper orifice edge of tubular valve body 5, when cover plate 6 covers tubular valve body 5 upper orifice downwards, cover plate 6 is just in time pressed on rubber weather strip 8, can improve the stopping property of explosion trap 4 so further, in the present embodiment, the structure of described water seal mechanism is: slag stewing hole 1 is provided with the aqua storage tank 10 that a circle has water 9, in aqua storage tank 10, interval is provided with some cushion blocks 11 be immersed in water 9, a circle bulge loop 12 is integrally extended with downwards at the edge of tubaeform slag stewing lid 2 heavy caliber inlet end, when tubaeform slag stewing lid 2 cover downwards slag stewing cheat 1 time, the bulge loop 12 of tubaeform slag stewing lid 2 is just in time against on the cushion block 11 in aqua storage tank 10 downwards, this water seal mechanism can not only substantially increase tubaeform slag stewing lid 2 and slag stewing and cheat stopping property between 1, prevent high-temperature steam cheat 1 from tubaeform slag stewing lid 2 and slag stewing between the outside loss in gap and scald workman, and structure is simple, easy for installation, and cost is lower double, in the present embodiment, be also respectively arranged with water eliminator 13 in three sides in slag stewing hole 1, can prevent the water in slag stewing process in aqua storage tank 18 from splashing out and scald workman like this, eliminate potential safety hazard, in the present embodiment, slag stewing hole 1 is also arranged and can cheat to slag stewing the nitrogen purging mechanism 14 purging nitrogen in 1, steel slag hot can not only be boiled in a covered pot over a slow fire the steam containing flammable explosive gas such as a large amount of hydrogen produced in process like this to blow away from slag stewing hole 1, prevent the flammable explosive gas such as hydrogen from cheating enrichment in 1 in slag stewing and quick-fried hole occurs, and due to nitrogen be rare gas element, prevent the generation of quick-fried hole phenomenon further, substantially increase safety in utilization,
Principle of work of the present invention is as follows:
Slag in slag stewing hole 1 is being fetched water in efflorescence process of cooling, a large amount of steam containing flammable explosive gas such as hydrogen that can produce, these contain the flammable explosive gas such as hydrogen steam can together directly on enter steam-pipe 3 from the small-bore outlet side of tubaeform slag stewing lid 2 upper end, discharge through steam-pipe 3 again, when the instantaneous increase of the pressure in steam-pipe 3, some vapor can from the direct exhaust vapour pipeline 3 of tubular valve body upper orifice of explosion trap 4, avoid causing damage to steam-pipe, simultaneously by the design of cover plate pin jointed end place limited block 7, cover plate 6 excessive outwards upset because the outside impulse force of steam of directly discharging from tubular valve body upper orifice is excessive can be avoided, further increase the operation stability of equipment, in the process of steam to the small-bore outlet side movement of tubaeform slag stewing lid 2 upper end, some vapor can diffuse to the aqua storage tank 10 around slag stewing hole 1, this some vapor diffusing to aqua storage tank 10 can be absorbed by the water 9 in aqua storage tank 10, thus avoids high-temperature steam to scald workman to slag stewing hole 1 outer loss, cheat that internal pressure is instantaneous higherly causes water 9 in aqua storage tank 10 outwards to splash when steel slag hot is boiled in a covered pot over a slow fire in process, the water outwards splashed can be blocked by water eliminator 13, avoids water to splash out and scald workman, make nitrogen purging mechanism 14 purge nitrogen in slag stewing hole 1 simultaneously, be purged into the nitrogen in slag stewing hole 1, the steam containing flammable explosive gas such as hydrogen can not only be made successfully to cheat 1 from discharge slag stewing together, and due to nitrogen be rare gas element, prevent slag stewing to cheat 1 further and the probability in quick-fried hole occur.The present invention has energy good seal performance, can effectively prevent from, during slag stewing, quick-fried hole phenomenon, advantage safe to use occur.
Claims (5)
1. the steel slag hot with explosion trap boils in a covered pot over a slow fire device, comprise: slag stewing is cheated, it is characterized in that: also comprise bore in the tubaeform slag stewing lid increased gradually from top to bottom, the heavy caliber inlet end of tubaeform slag stewing lid cheats top by water seal mechanism sealing cover in slag stewing, and the small-bore outlet side of tubaeform slag stewing lid is connected with steam-pipe; Steam-pipe is provided with explosion trap, the structure of described explosion trap is: comprise the tubular valve body be connected with steam-pipe, tubular valve body is hinged with the cover plate that can cover tubular valve body upper orifice downwards, at the pin jointed end place of cover plate, limited block is installed, when cover plate upwards overturns, the limited block at cover plate pin jointed end place is just in time against on the outer side wall of tubular valve body.
2. a kind of steel slag hot with explosion trap according to claim 1 boils in a covered pot over a slow fire device, it is characterized in that: the upper orifice edge of tubular valve body is provided with a root rubber sealed strip, when cover plate covers tubular valve body upper orifice downwards, cover plate is just in time pressed on rubber weather strip.
3. a kind of steel slag hot with explosion trap according to claim 1 boils in a covered pot over a slow fire device, it is characterized in that: the structure of described water seal mechanism is: slag stewing hole is provided with the aqua storage tank that a circle has water, in aqua storage tank, interval is provided with some cushion blocks be immersed in water, a circle bulge loop is integrally extended with downwards at the edge of tubaeform slag stewing lid heavy caliber inlet end, when tubaeform slag stewing lid covers slag stewing hole downwards, the bulge loop of tubaeform slag stewing lid is just in time against downwards on the cushion block in aqua storage tank.
4. a kind of steel slag hot with explosion trap according to claim 1 boils in a covered pot over a slow fire device, it is characterized in that: around slag stewing hole, be provided with water eliminator.
5. a kind of steel slag hot with explosion trap according to claim 1 boils in a covered pot over a slow fire device, it is characterized in that: also arranging on slag stewing hole can to the nitrogen purging mechanism purging nitrogen in slag stewing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569218.9A CN104342525B (en) | 2014-10-23 | 2014-10-23 | A kind of stewing device of slag heat with explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569218.9A CN104342525B (en) | 2014-10-23 | 2014-10-23 | A kind of stewing device of slag heat with explosion-proof valve |
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| Publication Number | Publication Date |
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| CN104342525A true CN104342525A (en) | 2015-02-11 |
| CN104342525B CN104342525B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410569218.9A Active CN104342525B (en) | 2014-10-23 | 2014-10-23 | A kind of stewing device of slag heat with explosion-proof valve |
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| CN (1) | CN104342525B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105039614A (en) * | 2015-08-25 | 2015-11-11 | 中冶节能环保有限责任公司 | Combustible gas safety monitoring and controlling device and method for steel slag waste heat pressure hot disintegration |
| CN108359759A (en) * | 2018-03-22 | 2018-08-03 | 重集团大连工程技术有限公司 | AOD stainless steel slag dry process equipment and exhaust heat recovering method |
| CN109457071A (en) * | 2018-12-27 | 2019-03-12 | 中冶京诚工程技术有限公司 | Steam whitening device for filter tank of blast furnace granulated slag system |
| CN115820948A (en) * | 2022-12-08 | 2023-03-21 | 宝武环科山西资源循环利用有限公司 | Carbon steel slag hot braising and carbonating treatment device and treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4046541A (en) * | 1976-05-26 | 1977-09-06 | Union Carbide Corporation | Slag quenching method for pyrolysis furnaces |
| CN102434905A (en) * | 2011-12-27 | 2012-05-02 | 济钢集团国际工程技术有限公司 | Steelmaking slag stewing steam recycling equipment |
| CN202576448U (en) * | 2012-04-18 | 2012-12-05 | 长沙凯瑞重工机械有限公司 | Steel-slag pyrolysis slag pot with stirring device |
| CN204151364U (en) * | 2014-10-23 | 2015-02-11 | 江苏永钢集团有限公司 | A kind of steel slag hot with explosion trap boils in a covered pot over a slow fire device |
-
2014
- 2014-10-23 CN CN201410569218.9A patent/CN104342525B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4046541A (en) * | 1976-05-26 | 1977-09-06 | Union Carbide Corporation | Slag quenching method for pyrolysis furnaces |
| CN102434905A (en) * | 2011-12-27 | 2012-05-02 | 济钢集团国际工程技术有限公司 | Steelmaking slag stewing steam recycling equipment |
| CN202576448U (en) * | 2012-04-18 | 2012-12-05 | 长沙凯瑞重工机械有限公司 | Steel-slag pyrolysis slag pot with stirring device |
| CN204151364U (en) * | 2014-10-23 | 2015-02-11 | 江苏永钢集团有限公司 | A kind of steel slag hot with explosion trap boils in a covered pot over a slow fire device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105039614A (en) * | 2015-08-25 | 2015-11-11 | 中冶节能环保有限责任公司 | Combustible gas safety monitoring and controlling device and method for steel slag waste heat pressure hot disintegration |
| CN108359759A (en) * | 2018-03-22 | 2018-08-03 | 重集团大连工程技术有限公司 | AOD stainless steel slag dry process equipment and exhaust heat recovering method |
| CN109457071A (en) * | 2018-12-27 | 2019-03-12 | 中冶京诚工程技术有限公司 | Steam whitening device for filter tank of blast furnace granulated slag system |
| CN115820948A (en) * | 2022-12-08 | 2023-03-21 | 宝武环科山西资源循环利用有限公司 | Carbon steel slag hot braising and carbonating treatment device and treatment method |
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| Publication number | Publication date |
|---|---|
| CN104342525B (en) | 2016-05-18 |
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